7results about How to "Avoid low machining accuracy" patented technology

The utility model discloses a cooling device of lathe main shaft, including the casing, the main shaft through bearing installation in the casing, install the sealing cover at the casing end portion department, set up the liquid inlet and the liquid outlet on the casing, the inner chamber of casing is cylindrical, be provided with the helical flow guide vane in the casing, the liquid inlet and the liquid outlet are located respectively at the both ends near department of flow guide vane, the clearance between the inner edge of flow guide vane and main shaft is 0.8 2mm, the utility model has the advantages in that: through the application of the device, the main shaft can maintain more stable temperature state in the high -speed operation process, avoids the processing precision decline caused by temperature rise, thereby effectively guarantees the processing quality of part.

The utility model discloses a milling cutter structure with a positioning function, which relates to the field of milling cutters and comprises a cutter handle, a cutter head is arranged at one end of the cutter handle, a positioning sleeve is slidably connected to the outer side of the cutter handle, and an adjusting structure is arranged on the positioning sleeve and used for adjusting the tightness degree between the positioning sleeve and the cutter handle. The positioning sleeve is matched with the tool apron, after first-time tool setting is completed, tool setting does not need to be conducted again when a milling cutter is assembled subsequently, the milling cutter can easily reach a preset machining position, tool changing and tool setting time is saved, and machining efficiency is remarkably improved; the precise positioning function of the positioning sleeve ensures that the milling cutter can reach the same machining position every time the milling cutter is assembled, machining precision reduction caused by tool setting errors is avoided, and therefore the overall machining quality is improved.

The utility model provides a kind of electronic wire harness pay-off guiding device, including base, set on the base for wire harness unwinding unwinding assembly, set on the base for wire harness pay-off pay-off driving assembly, further include vertical guiding assembly, have the pulley assembly of lift frame for pressing wire harness down, two groups of cleaning components for cleaning wire harness respectively are set on the lift frame;Wherein, the lift frame is slidably connected with the guiding assembly and can be lifted along vertical direction, the pulley assembly and two groups of the cleaning component are set between the unwinding assembly and the pay-off driving assembly.The utility model can prevent wire harness slack and lead to low processing accuracy.

The utility model relates to the technical field of silicon core machining, in particular to a silicon core grinding mechanism and a silicon core chamfering device, the silicon core grinding mechanism comprises a first guide rail, a walking support, a mounting support and a grinding wheel, and the length direction of the first guide rail is parallel to the placing direction of a silicon core; the walking support is installed on the first guide rail in a sliding mode. The installation support is slidably installed on the walking support, the moving direction of the installation support is perpendicular to the length direction of the first guide rail, and the grinding wheel is installed on the installation support. According to the utility model, the mounting bracket of which the moving direction is vertical to the length direction of the first guide rail is arranged, so that the grinding wheel can perform left-right reciprocating motion relative to the silicon core based on the mounting bracket while performing chamfering grinding on the whole silicon core along the placing direction of the silicon core along with the walking bracket; the usable area of the grinding surface of the grinding wheel can be fully utilized, the service life of the grinding wheel is guaranteed, the production cost is reduced, the machining precision is prevented from being reduced, and the grinding and chamfering quality is guaranteed.

To mount a non-rotating tool on a tool table that can rotate the tool via a gear train with backlash, and to prevent the tool from wobbling due to backlash when the tool is stopped and in use without complicating the structure, the tool comprises: a spindle (33) that holds the cutting tool (85) in a manner that allows it to be loaded and unloaded in the direction of axis (C3); a gear train (33) that transmits rotation to the held cutting tool (85); a pull rod (34) that moves the cutting tool (85) in the direction of axis (C3); and a piston (36) configured to move in the direction of axis (C3) between a rearmost position and a foremost position, wherein a coupling (convex-concave shape (36c, 34c)) is formed between the piston (36) and the pull rod (34) that allows them to rotate integrally in a contact state, and the piston (36) stops at an intermediate position between the rearmost position and the foremost position.

The utility model discloses an insulating tube machining efficient dust removal device which comprises a workbench, a centering clamping mechanism, a protection box body, a dustproof strip, a dust suction pump and a dust accumulation box, a tube body penetrates through the centering clamping mechanism and is clamped and fixed, the protection box body is arranged above the tube body in a covering mode, and a cutting lower cutter groove is formed in the surface of the protection box body. The top of the dustproof strip is connected with a cross rod through a fixing bolt. The two ends of the cross rod are connected with a sliding rod and connected with an extrusion ball head, the extrusion ball head makes contact with an eccentric wheel, the eccentric wheel is driven by a rotary knob to rotate, and the dustproof strip is controlled to ascend and descend so as to adapt to pipe bodies with different diameters. During cutting, dust falls into the dust accumulation box below the protective box body, meanwhile, the dust suction pump is connected with the top of the protective box body through the hose and sucks the dust, the dust removal efficiency is improved, and the overall sealing performance is enhanced through the sliding installation mode of the protective box body, dust leakage is prevented, the machining environment is optimized, and the pipe body machining quality is improved.

The application relates to the single-crystal germanium rough processing technical field and provides a crystal bar correction bonding tool, which comprises a base, a graphite plate, a first top block and a second top block; the graphite plate is horizontally placed on the base, and the graphite plate is used for placing a plurality of to-be-bonded crystal bars; the first top block is arranged on the base; the second top block is slidably connected to the base and can horizontally move to the first top block; the first top block is provided with a first abutting surface; the second top block is provided with a second abutting surface; when the second top block horizontally moves to the first top block, the first abutting surface and the second abutting surface respectively contact the crystal bars on the graphite plate and make the adjacent crystal bars adhere to each other. The tool of the application firmly bonds a plurality of crystal bars on the same graphite plate, then the graphite plate is transferred to a cutting device for slicing, the purpose of processing a plurality of crystal bars at a time is achieved, and the production efficiency is improved.