45results about How to "Guaranteed accuracy consistency" patented technology

The invention relates to a clamping tool for finely boring three bearing holes in a bearing for an RV speed reducer. The clamping tool comprises a base; the middle of the upper surface of the base is upwards provided with a circular truncated cone extending into a shaft hole of the bearing; a bolt hole passing through the upper end surface of the circular truncated cone and the lower bottom of the base is formed in the circular truncated cone; the outside of the circular truncated cone is sleeved with an expansion sleeve matched with the outer side surface of the circular truncated cone; the expansion sleeve is fixed together with the base by a hold-down bolt; three through holes are uniformly distributed in the base along the axial direction of the circular truncated cone; guide posts extending into the bearing holes in the bearing are placed in the through holes; two sides of the base are provided with baffles; a horizontal through hole for placing a dial indicator is formed in the upper part of each baffle; and a measuring head of each dial indicator is in contact with the outer side wall of the bearing. Due to the adoption of the design based on product structure and application condition, the three bearing holes in an inner ring assembly of the bearing can be finely bored, the precision consistence of the bearing holes with the same graduation is guaranteed, and the clamping tool is short in machining time, high in efficiency, capable of guaranteeing the assembly precision and good in application prospect.

The invention relates to the technical field of medical instruments, and discloses a portable liquid medicine injection instrument which comprises a handle, a driving device and a liquid storage device. The portable liquid medicine injection instrument is characterized in that a fastener is arranged on the handle, a first clamping groove and a magnetic suction line connector are formed in the sidewall of the driving device, the fastener is connected with the first clamping groove in a matched manner, the a handle signal is connected with a driving device signal by the magnetic suction line connector, a pin and a spanner arranged at the lower end of the driving device, the upper end of the liquid storage device is provided with a clamping position and a second clamping groove, the pin is connected with the second clamping groove in a matched manner, and the spanner is connected with the clamping position in a matched manner. The portable liquid medicine injection instrument is high inaccuracy and stable, small, portable and easy to carry, and accurate pill amount input can be achieved through user operation.

The invention belongs to the field of mechanical manufacturing, and in particular relates to a vehicle air-conditioning pipe template assembly, a brazing device and a working method thereof. In order to solve the problem that it is difficult to adapt to the brazing of air-conditioning copper pipes with different specifications and angle requirements at the same time, the invention provides a vehicle air-conditioning pipe profiling assembly, which includes two clamping parts with adjustable spacing to clamp different diameters Standard air-conditioning pipe; two equivalent profiles, the distance between the two equivalent profiles and the distance between the two clamping parts can be adjusted synchronously, and the distance between the two equivalent profiles and the clamping parts The angles are the same and synchronously adjustable to support air-conditioning pipes with different welding angles.

The invention relates to the technical field of TiC-based steel-bonded hard alloy precision machining, in particular to a TiC-based steel-bonded hard alloy fine-tooth external thread milling device, which includes a box with an opening on the upper end, and the box is filled with cooling liquid. A fixing seat is installed in the bottom surface of the box body, and a spring chuck is installed on the upper end of the fixing seat. The spring chuck is used to fix the parts to be milled. When the parts are fixed, the height of the upper end of the parts is lower than that of the box body. The height of the side wall, a milling cutter is hung on the side of the part, the milling cutter is coated with polycrystalline diamond, the main cutting edge of the milling cutter is in the form of two edges, and the two edges are coplanar.

The invention relates to the technical field of bio-printing, and in particular to a bio-printer and a calibration method thereof. The bio-printer of the invention includes a control apparatus, a first detection apparatus and a second detection apparatus. The first detection apparatus can send a first signal to the control apparatus when an injection apparatus moves to a first position in a Z axis direction so as to enable the control apparatus to calibrate a predetermined value of the length of the injection apparatus. The second detection apparatus can send a second signal to the control apparatus when the injection apparatus moves to a second position in the Z axis direction so as to enable the control apparatus to calibrate a predetermined value of the height of an initial attachment surface of a printing material. The bio-printer and calibration method of the invention can realize automatic calibration of the predetermined value of the length of the injection apparatus and the predetermined value of the height of the initial attachment surface of the printing material, which not only simplifies operation, lowers labor intensity of operation personnel, and also can effectively increase measuring precision, can guarantee precision consistency among a plurality of measurement, and can increase work reliability.

The invention relates to a fan-form processing method of a microlens array optical element, relating to a fan-form processing method. The invention solves the problems of tool wear, limited material and poor surface precision in the existing microlens array processing method. The present invention selects the V-shaped grinding wheel whose radius is greater than the microlens ball diameter Rs and trims it; the sharp point of the V-shaped grinding wheel along the negative Z axis of the machine tool just coincides with the center line of the C axis of the machine tool; Microlens P0, set the speed of the V-shaped grinding wheel to N g , the feed rate is V f , so that the V-shaped grinding wheel is fed in the negative direction along the Z-axis of the machine tool until a depth of a is produced on the workpiece. p wear marks, then the Z-axis of the machine tool stops feeding and remains still, and the C-axis of the machine tool rotates at N w Rotate 360° clockwise, retract the tool in the positive direction of the Z axis; use the Fancheng method to process any microlens P that is not at the center of the workpiece m ; Processing in sequence to form a microlens array optical element. The invention is used for the processing of microlens array optical elements.

The invention relates to a clamping tool for drilling and reaming thin-wall parts. The clamping tool for drilling and reaming the thin-wall parts comprises a supporting table, wherein a positioning hole is formed in the supporting table, the axis of the positioning hole is defined to be in the up-down direction, a positioning inner wall surface which is used for accommodating a plurality of the thin-wall parts stacked up and down and is circumferentially in location fit with the thin-wall parts is arranged in the positioning hole, the supporting table is further provided with a limiting structure which is arranged on the lower part of the thin-wall parts at the lowest layer in a blocking mode, and a receding space which of a receding drill bit is arranged at the position, located on the lower part of the limiting structure, of an accommodating hole. The clamping tool further comprises a pressing structure fixed on a supporting seat, wherein the pressing structure is provided with a pressing end extending from top to bottom into the positioning hole and pressing the thin-wall parts on the limiting structure, and the pressing structure is provided with a receding channel for the receding drill bit. The whole positioning and clamping of the thin-wall parts is realized, and the structure is relatively simple.

The invention provides a motor magnetic pole manufacturing method and belongs to the technical field of motors. The problems that existing motor magnetic pole machining is high in cost and low in production efficiency are solved. A magnetic pole comprises a pole shoe which is in a circular arc sheet shape, and a pole core located on the middle portion of a convex surface of the pole shoe. The motor magnetic pole manufacturing method comprises the following sequential steps that firstly, a billet is selected; secondly, preforming is performed, specifically, the billet is placed into a first cold extruding die to be subjected to cold extrusion, and the billet is preformed to be a preformed component; thirdly, forming is performed, specifically, the preformed component is placed into a secondcold extruding die to be subjected to cold extrusion, and the preformed component is formed to be a formed component; and fourthly, side cutting is performed, specifically, scrap portions of the formed component are cut off to obtain the magnetic pole. According to the motor magnetic pole, the method that the pole core is subjected to cold extrusion forming firstly and then the pole shoe is subjected to cold extrusion forming is adopted, the pole shoe forming precision and the pole shoe portion metal structure density uniformity are effectively guaranteed, and accordingly, it is effectively guaranteed that motor magnetic fields are distributed uniformly.