51results about How to "Avoid drilling deviation" patented technology

The present invention discloses an end hole machining device with prepressing function for diesel engine cylinder. The device comprises a fixing plate, a prepressing plate, a workbench and a driving mechanism. The fixing plate is located above the workbench and driven by the driving mechanism. A drilling mechanism is installed on the fixing plate. The prepressing plate is connected with the fixing plate through a spring set. A guide pillar is further disposed between the prepressing plate and the fixing plate. A guide hole is formed on the prepressing plate and located in the extension direction of a drill bit. The workbench is provided with at least two clamping mechanisms for fixing the cylinder. Each clamping mechanism is provided with a first sensor. The first sensor is connected with a prepressed control unit and is used for monitoring the spacing between the prepressing plate and the workbench and sending the monitored data signal to a control unit of each clamping mechanism. The control unit of each clamping mechanism controls the clamping mechanism to perform clamping or releasing action according to the data signal sent by the first sensor. The device of the present invention greatly improves the machining precision while improving the machining efficiency.

The invention provides a hole flushing device for coal mine downhole gas extraction drill holes. The hole flushing device comprises a water tank, a high-pressure pump, a high-pressure hard pipe, a high-pressure hose, a self-propelled drill bit, a base, a winch, a pushing mechanism and the like. The winch and the pushing mechanism are fixed to the base. The device can correspond to the drill holes in different positions and at different angles by adjusting all parts of the base. The high-pressure hard pipe can penetrate through the pushing mechanism before being fed into the drill holes. The high-pressure hard pipe can be conveyed forwards along the drill holes through pushing force provided by the pushing mechanism. When high-pressure water passes through the high-pressure hose at the front end of the high-pressure hard pipe and the self-propelled drill bit, high-pressure water jet is generated to conduct rock breaking dredging on collapsed and blocked portions, and self-propelling force is generated. The device is simple in structure, small in overall size and convenient to adjust, and can be conveniently used in coal mine downhole narrow working space. A whole power pipeline can be conveyed in long distance under joint acting force of pulling in front and pushing behind, and the pipeline can be prevented from being clamped. The hole flushing speed is high, efficiency is high, cost can be greatly reduced, and the gas extraction effect is improved.

The invention provides a drill hole positioning device which comprises a positioning part, a guiding frame and a guiding cylinder. The positioning part is provided with a concave positioning area matched with the outer surface of a workpiece to the machined. The guiding frame is connected to the positioning part. The guiding cylinder is connected with the guiding frame in the guiding direction in a rectilinear motion mode, and is provided with an inner hole for being connected with an electric drill so that the drill bit of the electric drill can penetrate through the inner hole and extend towards the concave positioning area. The drill hole positioning device can effectively prevent the drill hole deviation caused by the sliding of the hand-operated electric drill in the process of pipeline part drilling, and the precision of a matched hole is improved.

The invention discloses a pipe fitting processing radial arm drilling machine, which relates to the technical field of drilling machine processing and is used to solve the technical problems of the existing drilling machine such as the easy occurrence of deflection in drilling holes and the reduction in work efficiency, including a base, a column, a rocker arm, a headstock, and a spindle , drill bit and workbench, the base is provided with a column, the column is provided with a rocker arm, the rocker arm is provided with a spindle box, the spindle box is provided with a spindle, the bottom of the spindle is provided with a drill bit, and the base is also provided with a workbench. Above the workbench, the workbenches are provided with workpiece locking blocks, the workbenches are symmetrically provided with connecting levers, and a plurality of springs are arranged at intervals on the connecting levers, and each of the springs is provided with a The bar-shaped block and the workpiece locking block are equipped with infrared sensors. The invention has simple structure, convenient operation, avoids drilling deviation, improves the processing efficiency of pipe fittings, and has little environmental pollution.

The invention provides a drill hole positioning device which comprises a positioning part, a guiding frame and a guiding cylinder. The positioning part is provided with a concave positioning area matched with the outer surface of a workpiece to the machined. The guiding frame is connected to the positioning part. The guiding cylinder is connected with the guiding frame in the guiding direction in a rectilinear motion mode, and is provided with an inner hole for being connected with an electric drill so that the drill bit of the electric drill can penetrate through the inner hole and extend towards the concave positioning area. The drill hole positioning device can effectively prevent the drill hole deviation caused by the sliding of the hand-operated electric drill in the process of pipeline part drilling, and the precision of a matched hole is improved.

The invention provides a stepped drill reamer for machining aircraft skin rivet holes. The problems of a traditional method that machining efficiency is low; production cost is high; and machining quality cannot meet requirement can be solved. A reamer body comprises a first cylinder and a second cylinder which are concentrically connected into a whole from front to back; the diameter D1 of the first cylinder is smaller than the diameter D2 of the second cylinder; two first slag discharging grooves which are centrally symmetrical are formed in the periphery of the first cylinder, and two landsare formed on the periphery of the first cylinder; two second slag discharging grooves which are centrally symmetrical are formed in the periphery of the second cylinder; the two first slag discharging grooves in the periphery of the first cylinder both extend to the periphery of the second cylinder; the first slag discharging grooves and the second slag discharging grooves in the second cylinderare connected; the periphery of the second cylinder is divided to form two circumferential edges by the two first slag discharging grooves and the two second slag discharging grooves in the second cylinder; each land on the first cylinder is connected with the corresponding circumferential edge of the second cylinder in a transition mode through a stepped angle; the core thickness d1 of the firstslag discharging groove ranges from 0.25D1 to 0.35D1; the core thickness d2 of the second slag discharging groove ranges from 0.25D2 to 0.35D2; and d1 is smaller than d2.

The invention provides a high-precision charger shell end face drilling machining device. The device comprises a workbench, an installing frame, a first driving mechanism, N drilling mechanisms, N fixing mechanisms and a controller; the installing frame is provided with a distance measuring sensor used for detecting a distance value between the installing frame and the workbench in real time; each drilling mechanism comprises M drilling components and prepressing sleeves, wherein the M drilling components are all installed on the installing frame and circumferentially distributed, drill bits of all the drilling components face the workbench, the prepressing sleeves are located under the installing frame, connected with the installing frame through multiple reset springs and provided with M guiding grooves, and a first guiding hole used for allowing the corresponding drill bit to penetrate through is formed in each guiding groove in the extending direction of the drill bit; M fixing platforms used for fixing a charger shell are arranged at the end, close to the installing frame, of a fixing base, and the controller is connected with the first driving mechanism and the distance measuring sensor. The high-precision charger shell end face drilling machining device is accurate in drilling and positioning performance, high in precision and drilling efficiency, good in machining effect and high in product quality.

The invention discloses an automatic punching machine for a pantograph slide plate aluminum support and a punching method of the machine. The automatic punching machine for the pantograph slide platealuminum support comprises a base, a sliding groove is formed in the top of the base, a same limiting rod is welded to the inner walls of the two sides of the sliding groove, two symmetrical clampingplates slidingly sleeve the limiting rod, two pressing plates are welded to the sides, close to each other, of the two clamping plates and located above the base, two limiting holes matched with the limiting rod are formed in the sides, close to each other, of the two clamping plates and slidingly connected with the limiting rod, a groove is formed in the inner wall of the top of each limiting hole, and a first groove is formed in the bottom of each pressing plate. The machine is reasonable in design and simple in structure, the pantograph slide plate aluminum support can be stably and fixedlyclamped and positioned, when the pantograph slide plate aluminum support is punched, the position deviation is prevented, the punching position deviation is prevented accordingly, and the accuracy ofthe punching position is improved.

The invention discloses a fixture for conducting rough machining on water plugging holes of an engine cylinder block. An engine cylinder block to be machined is placed on a supporting plate. The engine cylinder block can conduct slippage on a base along with the supporting plate, so that feeding and discharging of a cylinder block piece are facilitated. When machining is conducted, a clamping device clamps the engine cylinder block to the supporting plate, meanwhile a locking portion locks the supporting plate and the base, it is guaranteed that in the drilling process of a drill bit is guaranteed, the cylinder block cannot waggle, and drilling deviation is avoided. A guide device plays a guide function on the drill bit of a radial drilling machine, and drilling accuracy is guaranteed.

The invention provides a hole flushing device for coal mine downhole gas extraction drill holes. The hole flushing device comprises a water tank, a high-pressure pump, a high-pressure hard pipe, a high-pressure hose, a self-propelled drill bit, a base, a winch, a pushing mechanism and the like. The winch and the pushing mechanism are fixed to the base. The device can correspond to the drill holes in different positions and at different angles by adjusting all parts of the base. The high-pressure hard pipe can penetrate through the pushing mechanism before being fed into the drill holes. The high-pressure hard pipe can be conveyed forwards along the drill holes through pushing force provided by the pushing mechanism. When high-pressure water passes through the high-pressure hose at the front end of the high-pressure hard pipe and the self-propelled drill bit, high-pressure water jet is generated to conduct rock breaking dredging on collapsed and blocked portions, and self-propelling force is generated. The device is simple in structure, small in overall size and convenient to adjust, and can be conveniently used in coal mine downhole narrow working space. A whole power pipeline can be conveyed in long distance under joint acting force of pulling in front and pushing behind, and the pipeline can be prevented from being clamped. The hole flushing speed is high, efficiency is high, cost can be greatly reduced, and the gas extraction effect is improved.

The invention discloses a circular arc surface drilling machining tool applied to a numerical control machine tool. The circular arc surface drilling machining tool comprises a supporting frame body,a placement frame, an auxiliary buckle plate, a lower pressing plate and a drilling device. A motor is fixedly connected to the bottom surface of the supporting frame body, and a rotating shaft of themotor penetrates through the bottom surface of the supporting frame body and is fixedly connected to the bottom surface of the placement frame. A plurality of partition plates are fixedly connected to the surface of the placement frame, connecting rings are fixedly connected between every two adjacent partition plates, and limiting sliding grooves are formed in the surfaces of the partition plates. Butting grooves are formed in the side walls of the partition plates, inserting-connecting holes are formed in the surfaces of the butting grooves, and the inserting-connecting holes connected withinserting-connecting rods arranged on the plate surface of the auxiliary buckle plate in an inserting mode. According to the circular arc surface drilling machining tool applied to the numerical control machine tool, circular arc plates are arranged and placed in a front-and-back aligned mode, drilling treatment of three circular arc plates when a drill bit drills at a time is realized, and the opening efficiency of the circular arc plates is greatly improved.