56results about How to "Won't loosen and fall off" patented technology

The invention provides an ultra-precision turning tool setting device, and belongs to the technical field of ultra-precision machining. The ultra-precision turning tool setting device is convenient and rapid to install, low in cost, high in tool setting accuracy and adjustable in tool setting resolution ratio, and effectively solves the problem of ultra-precision turning tool setting. A tool setting device base is fixed to the upper end of a machine tool main shaft, a quick change chuck is fixedly arranged at the front end of the tool setting device base, an optical system installation base is clamped and fixed through the quick change chuck, an optical microscope is fixed to the optical system installation base, a CCD image sensor is connected with the optical microscope, the optical microscope is located at the lower end of the CCD image sensor, a tool is arranged on a tool rest, a sliding block of the tool rest is arranged in a sliding groove of a tool rest installation base in a sliding mode, the sliding groove of the tool rest installation base is in slide fit with a Z-direction guide rail of a machine tool, the machine tool main shaft is fixed to the ultra-precision machine tool, and a sliding groove of the ultra-precision machine tool is in slide fit with an X-direction guide rail of the machine tool. The ultra-precision turning tool setting device is used for ultra-precision turning tool setting.

The invention discloses a rolling brush work lifting and swinging connecting frame device used on a roadside stone cleaning machine. A side vertical plate assembly is vertically welded with a main connecting plate; a main sliding vertical plate assembly is in sliding connection with the inner side wall of the side vertical plate assembly through a side telescopic oil cylinder; one end of a lifting and swinging oil cylinder is connected with the upper plane of a horizontal swinging arm assembly, and the other end of the lifting and swinging oil cylinder is connected with a limit sliding mechanism; one end of an auxiliary pull rod is hinged to a limit groove plate, and the other end of the auxiliary pull rod is hinged to the main sliding vertical plate assembly; one end of an auxiliary tension spring is hinged to the limit sliding mechanism, and the other end of the auxiliary tension spring is connected with the front end of a pre-tightening tension spring through a steel wire rope; the tail end of the pre-tightening tension spring is connected with the side vertical plate assembly; a cleaning working device connecting plate is hinged to the main sliding vertical plate assembly through a lifting and swinging connecting rod. The device is mounted on the roadside stone cleaning machine, so that a working device of the roadside stone cleaning machine can realize the extension and the lifting from the side surface of a main vehicle frame; meanwhile, the steel wire rope for swinging the tension spring is always in a stretched state to achieve the purposes that the working device efficiently works, and the cleaning effect is good.

A method for protecting the soldered dot of gas sensor includes such steps as preparing resin, coating it on said soldered dot, and drying.

The invention discloses a scraper discharger for plane scraping of a fitting bolt, and belongs to the technical field of ship construction. The scraper discharger comprises a scraper discharger body and a positioning clamp. The scraper discharger body is in a cylinder shape. A conical handle is arranged at the upper end of the scraper discharger body. A protruding strip is arranged on the top faceof the conical handle. An annular groove is formed in the lower end of the scraper discharger body. The positioning clamp is arranged in an annular groove of the scraper discharger body in a sleevedmanner. The top face of the positioning clamp is perpendicular to the center line of the scraper discharger body. A first key groove is formed in the lower end of the side face of the scraper discharger body. The first key groove is arranged above the annular groove. The positioning clamp is arranged in the annular groove, loosening disengaging of the positioning clamp due to high-speed rotation and scraper rotation are avoided, and safety is high. The top face of the positioning clamp is perpendicular to the center line of the scraper body, the bearing force of the positioning clamp to the scraper is uniform, and the situation that in the scraper scraping process, inclination happens, and consequently the scraping precision is reduced is prevented.

The invention provides lifting hooks for a plate type catalyst unit block, belonging to the mechanical field and relating to a lifting tool. The aim of the invention is that hook tongues are inserted in spaces among catalyst plates arranged in a unit frame and are used for clamping the folding edges at the end part of the unit frame for lifting. A lifting beam is fixedly arranged on a lifting frame; the lifting hooks are connected onto the lifting frame by shafts; the outer sides of the lifting hooks are provided with lifting hook body protection grooves fixedly arranged on the lifting frame; the bottom ends of the lifting hooks are provided with the hook tongues; a rope wheel is connected on a protection frame by a shaft; the protection frame is fixedly arranged on the lifting beam; the lifting hooks are provided with lock sleeve clamping grooves; a return spring is hung on a hook seat on the lifting hooks by hangers; and the lifting hooks and the lifting hook body protection grooves are sleeved with hook tongue locking sleeves. According to the lifting hooks for the plate type catalyst unit block provided by the invention, the lifting process is stable, firm and safe; as a reserved space is omitted, the detention vortex of smoke in the reserved space is reduced, and the blockage caused by dust accumulation is avoided; the lifting hooks for the plate type catalyst unit block also can be applied to lifting of special articles with limited overall sizes; in the past, when being lifted in a workshop, barrel-shaped articles with smooth outlines are frequently bound by ropes for horizontal lifting or oblique lifting, so that the traditional operation is time-consuming and unsafe; however, the lifting hooks of such a structure are safe and fast to apply.

The invention provides a lead-titanium-silicon-carbon composite and a preparation method thereof. The preparation method comprises the following steps: mixing a carbon material with silica; then adding a titanyl sulfate solution; carrying out washing with an ammonia water solution; then carrying out calcining under a nitrogen condition so as to obtain a titanium-silicon-carbon composite; then adding a lead salt solution; carrying out washing with an acid solution and carrying out drying so as to obtain a lead sulfate / carbon-based material composite electrode material; mixing the lead sulfate / carbon-based material composite electrode material with a metal oxide and jetting silica onto the surface of the mixture so as to obtain the lead-titanium-silicon-carbon composite. The lead-titanium-silicon-carbon composite prepared in the invention has the advantage of capacity of improving electrical conductivity, the capability of charge acceptance and charge / discharge rate, converting a lead salt into active lead and inhibiting salinization caused by increase of a lead salt crystal; the lead-titanium-silicon-carbon composite bonded with lead has improved bonding force and can maintain certain strength in the process of charging and discharging, which enables the composite to be prevented from loosing and falling under impact of currents; the overpotential of hydrogen evolution is increased, and a negative electrode is prevented from too-early hydrogen loss; and cycle life is improved.

The invention discloses a baking box and a forming device and method thereof. The baking box comprises multiple subsidiary boxes, each subsidiary box comprises a tank body provided with an accommodation cavity and a turnup which is arranged around a dead head of the tank body and has a rectangular profile, and a master box which is formed after placing and aligning the subsidiary boxes and weldingthem along a linear splicing seam is installed in a square-shaped framework. The forming device of the baking box comprises a forming platform, wherein the forming platform is provided with a first linear guide rail, a first clamp is slidably arranged on the first linear guide rail, and comprises a first mounting box used for bearing the subsidiary boxes, and a first squeezing mechanism arrangedon the first mounting base, and the first squeezing mechanism is used for pressing the rectangular turnups of the subsidiary boxes to be fitted on the same horizontal plane and closely distributed onthe first mounting base in the mode of transverse and longitudinal arrangement, and is used for welding the linear welding seams among the subsidiary boxes to obtain a laser welding box of the masterbox. By means of the baking box and the forming device and method thereof, the forming procedures of the baking box are reduced, and the processing efficiency is improved.

The invention relates to copper saving portable electrode holders. It includes handle, joy stick, soldering tongs head, tension disc, spring, upward acting plate. The soldering tongs head the upward acting plate is made of aluminum alloy. The handle is straight shank structure, made of insulating material. And its back end is set wire protecting sleeve. The tension disc is fixed at the bottom of the tail of the soldering tongs head fixed on the handle head top. The joy stick is formed by outer layer and framework. The former is made of insulating material. The latter is made of metal plate. The upward acting plate is fixed at the bottom of the joy stick head connected with the handle by pin between which the spring is set.

The invention discloses an automatic-liquid-supplementing fruit fly trap which comprises a trapping agent container comprising a main container and a supplemented liquid container. A window for fruitflies to fly in is arranged on the upper portion of the main container, an automatic liquid supplementing device is arranged at the bottom of the main container and comprises a shell fixed at the bottom of the main container, the shell comprises an upper cavity and a lower cavity, a liquid incoming joint is arranged on the side face of the lower cavity, the upper cavity and the lower cavity are communicated through a vertical tube hole, a liquid discharging hole is formed in the upper cavity, a buoyancy block capable of moving up and down is arranged in the upper cavity, a pull rod matched with the vertical tube hole is connected on the buoyancy block, and an end cap is arranged at the lower end of the pull rod; a liquid discharging tube connected with the liquid incoming joint is arrangedon the lower portion of the supplemented liquid container. Through a combined structure of the main container, the supplemented liquid container and the automatic liquid supplementing device, a function of the fruit fly trap in automatically supplementing a trapping agent is realized, and the technical problem that existing fruit fly traps need manual supplementing of the trapping agent is solved.

The invention provides a micro tillage machine and tillage knife connecting device which comprises a micro tillage machine joint, a connecting rod and a tillage knife joint, wherein a tillage knife mounting hole is formed in the tillage knife joint. The micro tillage machine and tillage knife connecting device further comprises a U-shaped pin rod, a limiting baffle, a spring and a spring baffle, wherein a first pin rod hole is formed in the limiting baffle; a second pin rod hole is formed in the tillage knife joint; the U-shaped pin rod is arranged in the first pin rod hole and the second pin rod hole in a sliding manner; the spring baffle is arranged on the U-shaped pin rod; the spring is arranged on the U-shaped pin rod in a sleeving manner and positioned between the spring baffle and the limiting baffle; a push-pull head is arranged on the U-shaped pin rod. The micro tillage machine and tillage knife connecting device is simple in structure and simple in operation, does not need a special tool during assembly and disassembly and cannot loosen and fall off in the use process, thereby being safe and reliable.

The invention discloses a blood slice bracket carrying seat. The blood slice bracket carrying seat comprises a carrying seat body and a plurality of flat-bottom main grooves which are formed in the front faces of the carrying seat body in parallel, wherein one ends of the main grooves depart from the bottom faces of the grooves to be provided with front reversed buckles in a suspension manner; and the other ends of the main grooves depart from the bottom faces of the grooves to be provided with tail convex buckles in the suspension manner. The blood slice bracket carrying seat can be provided with a plurality of blood slice brackets in a clamping manner to realize experimental tests of filter paper dry blood slices in batches, so as to realize the effect of automatically and rapidly detecting. The invention further discloses a blood slice bracket assembly for automatically and rapidly detecting the filter paper dry blood slices.

The invention discloses a scraper discharger for plane scraping of a fitting bolt, and belongs to the technical field of ship construction. The scraper discharger comprises a scraper discharger body and a positioning clamp. The scraper discharger body is in a cylinder shape. A conical handle is arranged at the upper end of the scraper discharger body. A protruding strip is arranged on the top faceof the conical handle. An annular groove is formed in the lower end of the scraper discharger body. The positioning clamp is arranged in an annular groove of the scraper discharger body in a sleevedmanner. The top face of the positioning clamp is perpendicular to the center line of the scraper discharger body. A first key groove is formed in the lower end of the side face of the scraper discharger body. The first key groove is arranged above the annular groove. The positioning clamp is arranged in the annular groove, loosening disengaging of the positioning clamp due to high-speed rotation and scraper rotation are avoided, and safety is high. The top face of the positioning clamp is perpendicular to the center line of the scraper body, the bearing force of the positioning clamp to the scraper is uniform, and the situation that in the scraper scraping process, inclination happens, and consequently the scraping precision is reduced is prevented.

The invention provides an anti-disengaging detachable material returning air cap for a circulating fluidized bed boiler. The situations of loosening and disengaging of an air cap head caused by the impact of high-pressure head fluidized air are avoided, the air cap head can be conveniently loosened and tightened after being firmly clamped through a wrench, and circulating materials of the whole boiler can normally return. The anti-disengaging detachable material returning air cap comprises the air cap head and an air cap connecting pipe, wherein the lower end of the air cap head is in threaded connection with an upper joint of the air cap connecting pipe, and is arranged on the upper joint of the air cap connecting pipe in a sleeving manner; an air outlet is formed in the middle annular surface of the air cap head; a central hole of the air cap connecting pipe is communicated with a cavity formed by combining the air cap head and the air cap connecting pipe; the cavity is communicated with the air outlet. The anti-disengaging detachable material returning air cap is characterized in that an outer boss structure is arranged in the middle of the air cap connecting pipe; the upper end surface of the outer boss structure is of a planar structure; a spring washer is pressed between the bottom end surface of the air cap head and the upper end surface of the outer boss structure; two sides of an outer ring surface, corresponding to a threaded part, of the air cap head are machined to form the planar structures.

The invention provides a lead-titanium-silicon-carbon composite and a preparation method thereof. The preparation method comprises the following steps: mixing a carbon material with silica; then adding a titanyl sulfate solution; carrying out washing with an ammonia water solution; then carrying out calcining under a nitrogen condition so as to obtain a titanium-silicon-carbon composite; then adding a lead salt solution; carrying out washing with an acid solution and carrying out drying so as to obtain a lead sulfate / carbon-based material composite electrode material; mixing the lead sulfate / carbon-based material composite electrode material with a metal oxide and jetting silica onto the surface of the mixture so as to obtain the lead-titanium-silicon-carbon composite. The lead-titanium-silicon-carbon composite prepared in the invention has the advantage of capacity of improving electrical conductivity, the capability of charge acceptance and charge / discharge rate, converting a lead salt into active lead and inhibiting salinization caused by increase of a lead salt crystal; the lead-titanium-silicon-carbon composite bonded with lead has improved bonding force and can maintain certain strength in the process of charging and discharging, which enables the composite to be prevented from loosing and falling under impact of currents; the overpotential of hydrogen evolution is increased, and a negative electrode is prevented from too-early hydrogen loss; and cycle life is improved.

The invention discloses a large spring vibration isolator with damping. The large spring vibration isolator with damping comprises a base, a bottom plate, a connecting plate and an abutting plate, wherein a connecting rod is fixedly connected to the interior of the base; a supporting plate is connected to the surface of the connecting rod in a penetrating mode; an adjusting rod is connected to the interior of one end of the supporting plate in a penetrating mode; a rotating block is fixedly connected to the bottom of the adjusting rod; the base is movably connected to the surface of the rotating block; and the supporting plate is connected to the bottom of the bottom plate. According to the large spring vibration isolator with damping, in the using process of the large spring vibration isolator with damping, after the large spring vibration isolator with damping is installed at the corresponding position, the adjusting rod is rotated, the supporting plate slides on the connecting rod through a threaded connection structure between the adjusting rod and the supporting plate, meanwhile, the vertical height of the bottom plate is changed, so that the overall longitudinal vertical height of the large spring vibration isolator with damping is changed, the large spring vibration isolator with damping can be adjusted more conveniently according to the installation scene of the large spring vibration isolator with damping, and the situation that a worker inserts a steel sheet into the bottom of the large spring vibration isolator with damping traditionally to increase the size of the large spring vibration isolator with damping is avoided.

The invention relates to the technical field of friction stir welding, in particular to a snap-on assembling welding tool and an assembling method. The snap-fit ​​welding tool has a positioning ring at the top of the stationary shoulder, and at least two bending slots are arranged on the positioning ring; the bottom end of the shoulder flange has a positioning hole for accommodating the positioning ring , wherein, in the positioning hole, there is a clamping piece adapted to the bending slot; through the snap fit of the clamping piece of the shoulder flange and the bending slot of the stationary shoulder, Shaft-shoulder connection can be achieved through simple corner action, and disassembly is efficient; the snap-on assembly welding tool provided by the present invention adopts snap-on structure to ensure that the two structures are concentric, so that the stationary shaft shoulder and the shaft shoulder can be realized. Coaxial connection of flanges.

The invention discloses a panel chamfering machine, which comprises a frame, a driving mechanism and a sliding positioning device. A beam 1 is arranged at the lower end of the frame, and a beam 2 is arranged in the middle. Bearings are respectively arranged on the beam 2 at a certain distance. Seat assembly 1 and bearing seat assembly 2, the upper end of the frame is provided with an upper frame, and the upper frame is provided with two parallel "V"-shaped guide rails, the driving mechanism is connected with the beam one on the one hand, and It is connected with the bearing seat assembly 1 and the bearing seat assembly 2, the sliding positioning device is connected with the "V" guide rail, the driving mechanism is composed of a motor and a pulley shaft, and the output shaft of the motor is provided with a large pulley. The pulley shaft is provided with a small pulley, and the end of the pulley shaft is provided with a thread, and a disc saw is set on the pulley shaft, and a sawdust baffle is provided on the side of the upper frame, so that multiple wooden panels can be reversed at one time. Corner operation improves the processing efficiency of wooden panels with accurate positioning and high chamfering precision.

The invention discloses a magnetic marking die which comprises an air cylinder, a marking platform and a marking die body. The marking die body is connected and installed below the air cylinder, the marking die body is matched with the marking platform, the marking die body comprises a chuck rod, a marking steel seal, a fastening screw and a magnetic mechanism, the chuck rod is connected and fixed to the top of the marking die body, and the chuck rod is connected with the air cylinder in a matched mode. The marking steel seal is connected and installed at the bottom of the marking die body through the fastening screw, and the magnetic mechanism is connected and installed in the marking die body. According to the marking die, a permanent magnet is installed on the marking die body, under the adsorption effect of strong magnetic force, the steel seal in a marking die cavity can be firmly attracted and is ensured to not loosen or fall off, and the equipment process problem that it cannot be guaranteed that the steel seal cannot loosen or fall off simply through screw fastening is well solved.

The invention discloses an intelligent grouting sleeve which comprises a first sleeve and a second sleeve. A first clamping pipe is mounted at one end of the first sleeve, a second clamping pipe is mounted at the other end of the first sleeve, a first connecting pipe is mounted at the top of the first sleeve, a first inserting rod is mounted at the bottom of the first sleeve, a first slurry port is mounted on one side of the first connecting pipe, a first anti-shedding rod is rotatably connected on each of two sides of the inner wall of the first connecting pipe through a hinge, a first springis mounted between each first anti-shedding rod and the first connecting pipe, and a first clamping head is mounted at the bottom of the first inserting rod. By arranging the first clamping pipe, a first positioning rod, a first tension spring, a second positioning rod, a second clamping pipe, a second tension spring, a third positioning rod, a third clamping pipe, a third tension spring, a fourth positioning rod, a fourth clamping pipe and a fourth tension spring, when a user adds concrete grout, rebar displacement is prevented, wrong processing is avoided, and device scrappage rate is lowered.

The invention discloses an intelligent grouting sleeve which comprises a first sleeve and a second sleeve. A first clamping pipe is mounted at one end of the first sleeve, a second clamping pipe is mounted at the other end of the first sleeve, a first connecting pipe is mounted at the top of the first sleeve, a first inserting rod is mounted at the bottom of the first sleeve, a first slurry port is mounted on one side of the first connecting pipe, a first anti-shedding rod is rotatably connected on each of two sides of the inner wall of the first connecting pipe through a hinge, a first springis mounted between each first anti-shedding rod and the first connecting pipe, and a first clamping head is mounted at the bottom of the first inserting rod. By arranging the first clamping pipe, a first positioning rod, a first tension spring, a second positioning rod, a second clamping pipe, a second tension spring, a third positioning rod, a third clamping pipe, a third tension spring, a fourth positioning rod, a fourth clamping pipe and a fourth tension spring, when a user adds concrete grout, rebar displacement is prevented, wrong processing is avoided, and device scrappage rate is lowered.

The invention discloses a detachable glass window frame, which has a window frame. Limiting baffles are arranged around the inside of the window frame near the front, and a limiting frame is arranged inside the window frame. The limiting frame Located on the back of the limit baffle, there is a space between the top and bottom of the window frame, and there is a space between the front and the limit baffle; the left and right sides of the limit frame near the top are fixed with outward convex The pin shafts are raised, the position corresponding to the pin shafts on the window frame is provided with guide chute, the pin shafts on the left and right sides of the limit frame are located in the corresponding guide chute respectively, and the front of the limit frame is provided with The pressing plate corresponding to the limit baffle. This kind of detachable glass window frame can realize the installation and disassembly of the glass through the limit frame. The replacement cost of glass is reduced, and the replacement efficiency is improved.

The invention discloses an improved RF coaxial connector housing, the structure of which includes a base, a screw sleeve, a supporting plate, a slider, clamping blocks, a housing cover, a rubber ring,a collision preventing column, clamps and a connecting groove. Each clamp is composed of a positioning recessed hole, a connecting rod, a clamping plate, a rivet, a spring leaf and a clamp groove. The improved RF coaxial connector housing of the present invention is provided with the clamps. The clamp and the connecting groove are fixed together by the positioning recessed hole, then the clamp groove is abutted against the clamping block, and the spring leaf is pressed to firmly fasten the housing cover and the connecting groove. The firmness of the equipment is improved, the improved RF coaxial connector housing cannot loose or dislocate during vibration, the RF coaxial connector is enabled to be easily disassembled, the time is saved, and the sealing effect is good.

The invention relates to a high-voltage electricity introducing rod, and belongs to the technical field of electric desalting, electric dehydration and electric refining equipment of crude oil. The high-voltage electricity introducing rod comprises a rod cap, a rod body and a connecting base, wherein plug screws, cables, high-voltage-resistant heat-shrinkable pipes, linings and lining sleeves are arranged in the rod cap, the rod body and the connecting base. According to the high-voltage electricity introducing rod disclosed by the invention, high-voltage-resistant heat-shrinkable pipes are coated outside the cables, so that the surface climbing arc and ablation of the cable surfaces caused by medium pollution can be effectively prevented; an umbrella-shaped structure is designed at the lower end of the rod body, so that the lower-part insulating distance can be increased, the ablation of the rod cap of an electrode inducing rod produced in a long-term electrical discharge arc can be prevented, and thus the service life can be prolonged; and the head part of the rod cap is a plug-in type connecting device, so that the high-voltage electricity introducing rod is good in contact, cannot be burnt out, is convenient to install, can be used for a long time, and cannot loosen and fall off.

The invention provides lifting hooks for a plate type catalyst unit block, belonging to the mechanical field and relating to a lifting tool. The aim of the invention is that hook tongues are inserted in spaces among catalyst plates arranged in a unit frame and are used for clamping the folding edges at the end part of the unit frame for lifting. A lifting beam is fixedly arranged on a lifting frame; the lifting hooks are connected onto the lifting frame by shafts; the outer sides of the lifting hooks are provided with lifting hook body protection grooves fixedly arranged on the lifting frame; the bottom ends of the lifting hooks are provided with the hook tongues; a rope wheel is connected on a protection frame by a shaft; the protection frame is fixedly arranged on the lifting beam; the lifting hooks are provided with lock sleeve clamping grooves; a return spring is hung on a hook seat on the lifting hooks by hangers; and the lifting hooks and the lifting hook body protection grooves are sleeved with hook tongue locking sleeves. According to the lifting hooks for the plate type catalyst unit block provided by the invention, the lifting process is stable, firm and safe; as a reserved space is omitted, the detention vortex of smoke in the reserved space is reduced, and the blockage caused by dust accumulation is avoided; the lifting hooks for the plate type catalyst unit block also can be applied to lifting of special articles with limited overall sizes; in the past, when being lifted in a workshop, barrel-shaped articles with smooth outlines are frequently bound by ropes for horizontal lifting or oblique lifting, so that the traditional operation is time-consuming and unsafe; however, the lifting hooks of such a structure are safe and fast to apply.

The invention discloses a large damping spring vibration isolator, comprising a base, a bottom plate, a connecting plate and a butt-jointing plate. A connecting rod is fixedly connected to the inside of the base, and a support plate is connected through the surface of the connecting rod. An adjusting rod is connected through the inside of one end of the adjusting rod, a rotating block is fixedly connected to the bottom of the adjusting rod, a base is movably connected to the surface of the rotating block, and a support plate is connected to the bottom of the bottom plate. For the large damping spring vibration isolator, during the use of the device, after the device is installed in the corresponding position, the adjusting rod is rotated, and the threaded connection structure between the adjusting rod and the supporting plate makes the supporting plate slide on the connecting rod, and at the same time The vertical height of the bottom plate is changed, so that the overall vertical vertical height of the device is changed, so that the device can be more conveniently adjusted according to the installation scene of the device, avoiding the traditional staff inserting the steel sheet into the bottom of the device to increase the size of the device.

The invention relates to a self-tight-sealing high voltage introduction bar, belonging to the technical field of electric desalting and electric dewatering facilities in crude oil pretreatment. The self-tight-sealing high voltage introduction bar comprises a bar cap and a bar body, wherein a screw plug, a cable, a high-voltage-resistant heat-shrinkable pipe, a liner and a liner sleeve are arranged in the bar cap and bar body. The structure also comprises a self-tight seat, a connecting flange, a sealing element, a connecting bolt and a nut, wherein the connecting flange, sealing element and connecting bolt are matched with the seat. The high-voltage-resistant heat-shrinkable pipe is wrapped outside the cable to effectively prevent the surface climbing arc ablation on the cable surface due to dielectric pollution. The lower end of the bar body is provided with an umbrella-shaped structure to increase the insulation distance on the lower part, thereby avoiding the ablation of the electrode introduction bar cap in the long-term electrical discharge arc process, and further prolonging the service life. The self-tight seat, connecting flange and sealing element are combined to form the self-tight sealing structure of which the sealing effect is suitable for high-voltage vessels, thereby preventing the high-voltage vessels from losing effects due to sealing leakage in the operation process.

The invention provides an ultra-precision turning tool setting device, and belongs to the technical field of ultra-precision machining. The ultra-precision turning tool setting device is convenient and rapid to install, low in cost, high in tool setting accuracy and adjustable in tool setting resolution ratio, and effectively solves the problem of ultra-precision turning tool setting. A tool setting device base is fixed to the upper end of a machine tool main shaft, a quick change chuck is fixedly arranged at the front end of the tool setting device base, an optical system installation base is clamped and fixed through the quick change chuck, an optical microscope is fixed to the optical system installation base, a CCD image sensor is connected with the optical microscope, the optical microscope is located at the lower end of the CCD image sensor, a tool is arranged on a tool rest, a sliding block of the tool rest is arranged in a sliding groove of a tool rest installation base in a sliding mode, the sliding groove of the tool rest installation base is in slide fit with a Z-direction guide rail of a machine tool, the machine tool main shaft is fixed to the ultra-precision machine tool, and a sliding groove of the ultra-precision machine tool is in slide fit with an X-direction guide rail of the machine tool. The ultra-precision turning tool setting device is used for ultra-precision turning tool setting.

A supporting frame is fixedly connected with an operating table, a guide cylinder is installed on the supporting frame and can move front and back, a spring cylinder is installed on the front side of the guide cylinder through a push rod, and a spring, a gasket and a first pressure sensor are sequentially and coaxially installed in the spring cylinder from front to back; the electric cylinder installed on the front side of the spring barrel can push the spring barrel to move, the traction barrel can apply pushing force to the push rod through the spring to push the guide barrel to move so as to achieve traction of the head of a patient, the lifting column can move up and down and be positioned, and the motor is installed at the upper end of the lifting column and can drive the transverse swing arm to rotate horizontally. The sliding groove frame is rotationally connected with the front end of the transverse swing arm, the rotating frame is rotationally installed at the upper end of the sliding groove frame and can be locked through the locking wheel, the holder has six spatial freedom degrees and is rotationally installed at the front end of the rotating frame, the holder can be connected with the head of a patient through a plurality of skull nails, and the torsion column and the skull nails can be coaxially installed in a nested mode. And the skull nail cannot loosen and fall off.