19results about How to "High clamping precision" patented technology

This invention relates to the technical field of metal cutting tools, specifically to a compound helical end mill, comprising a neck and a cutting edge; the cutting edge includes side edges, one end of which is connected to the neck, and the other end has a plurality of side edges arranged circumferentially around the axis of the neck. Along the direction of circumferential arrangement, the side edges include left-hand left-cutting side edges and right-hand right-cutting side edges, which are set at the same end face height of the cutting edge. This structural arrangement allows both types of side edges to be aligned with the milling surface of the workpiece, thus eliminating the need to translate the end mill for re-alignment during operation, achieving efficient deburring while improving tool clamping accuracy and machining accuracy; furthermore, this structural arrangement helps to reduce the circumferential length of the end mill, making it more suitable for machining narrow grooves such as T-slots.

The application discloses a crankshaft main journal center frame, the upper part of the center frame is provided with an extension assembly, the extension assembly is connected with an upper supporting arm and a lower supporting arm, the upper supporting arm and the lower supporting arm are respectively connected with a first positioning assembly and a second positioning assembly, the first positioning assembly and the second positioning assembly are in abutment with a crankshaft main journal, the upper supporting arm is connected with the lower part of the center frame in a shaft mode, the lower supporting arm is connected with the center frame in a shaft mode, a slide rail is arranged above the center frame, a sliding seat is connected with the slide rail, a hydraulic cylinder is arranged on the sliding seat, a piston rod of the hydraulic cylinder is connected with a third positioning assembly, the third positioning assembly is in abutment with the crankshaft main journal, and the application has the advantages that the application can be applied to clamping a large-size crankshaft journal, the clamping position is adjustable, the clamping precision is high, the positioning assemblies are all positioned in a shaft journal line contact mode, and the crankshaft is prevented from shaking in the grinding process.

This utility model relates to the field of valve pressure testing technology and discloses a pressure testing device for ball valve testing. The device includes a base, a testing component on the top of the base, a ball valve body on the top of the base, and a clamping component on the top of the base. In this device, the outer wall of a conical sleeve is interference-fitted with the ball valve body to achieve installation. The conical sleeve has a self-centering function; its conical outer contour guides the ball valve to automatically center and align, eliminating manual alignment and repeated adjustments, significantly improving clamping efficiency before pressure testing. It automatically adapts to pipes with different inner diameters, allowing the device to accommodate welded or flanged ball valves. The support rod abuts against the bottom of the ball valve body, providing vertical upward support and preventing the ball valve from sliding or dislodging due to water or air pressure impact during pressure testing, thus improving clamping accuracy and structural stability.

The high-precision self-centering directional clamping device comprises a base, a centering assembly and a directional assembly, the centering assembly and the directional assembly are respectively arranged on the base, the centering assembly comprises a clamping component and a pressure component, the clamping component and the pressure component form a clamping channel and can be contracted or expanded, and the directional assembly forms a directional channel communicated with the clamping channel. A to-be-clamped part penetrates through the clamping channel from one end and is inserted into the orientation channel, the orientation assembly can form positioning in the circumferential direction of the part, and the pressure component drives the clamping component to clamp or loosen the part with the center line of the clamping channel as the reference. On one hand, on the basis that the clamping channel and the orientation channel are communicated, the part is clamped by taking the center line of the clamping channel as a reference under the condition that the part is positioned in the circumferential direction, errors caused by repeated clamping are effectively reduced, the clamping precision is improved, and the yield of products can be improved; and on the other hand, operation is easy and convenient, clamping efficiency is high, machining difficulty is effectively lowered, and production efficiency is improved.

The invention discloses an elastic expansion sleeve clamp applied to turning of a lightweight differential shell and a using method of the elastic expansion sleeve clamp, and relates to the technical field of elastic expansion sleeve clamps. Comprising a carrying structure which is assembled with the end part in a lathe of the differential shell through a positioning bolt; and the driving source is arranged in the carrying structure and forms an insertion matching relationship with the carrying structure. The traction assembly and oil liquid circulation are introduced into the clamping assembly, the double effects of clamping and traction are achieved, a traction magnetic attraction rod is matched with a return spring, trace axial traction force can be applied to a shell in the clamping process, a workpiece automatically tends to a machining datum plane in the positioning process, the clamping precision is further improved, and meanwhile, the clamping efficiency is improved. An oil injection channel and an oil drainage channel arranged in the blocking ring column are communicated with the oil storage sleeve, closed lubricating oil circulation can be formed in the clamping mechanism, low-friction operation of a transmission part is kept, the service life is prolonged, and the automatic return and self-lubricating functions are achieved.

The application relates to the technical field of automobile part detection tooling, in particular to a shock absorber support welding inspection tooling which comprises a rack, two installation openings are formed in the rack, the installation openings pass through the opposite surfaces of the rack, the two installation openings correspond to the positions of preset holes processed in the shock absorber support, a plurality of supporting rods for pressing the inner walls of the preset holes processed in the shock absorber support are arranged in the installation openings, the plurality of supporting rods are arranged in the vertical direction, the plurality of supporting rods are equidistantly arranged along the circumferences of the installation opening axes, and a driving assembly for driving the plurality of supporting rods to synchronously expand outward or synchronously contract is arranged below the rack. The application has the effects of improving the problems of time-consuming and labor-consuming and easy deformation of workpieces caused by the bolt pressing plate type locking, and the problems of large space occupation and easy cumulative error caused by the secondary positioning required by the separation type positioning and clamping.

The utility model provides a kind of fixture for flat sewing machine shell processing, including bottom plate, positioning pad is provided on bottom plate, positioning pin is provided on positioning pad, positioning pin is inserted with the process hole of being opened in the rear window surface of flat sewing machine shell, a plurality of clamping heads are slidably arranged on the bottom plate and clamped to the left and right side surfaces of flat sewing machine shell, feeding device is provided on the bottom plate to drive the reciprocating linear motion of clamping head away from or close to the clamping position. The fixture for flat sewing machine shell processing is fixed by setting positioning pin, clamping head and feeding device, compared with manual clamping and fixing in the prior art, it has the advantages of high safety and high clamping precision.

The utility model relates to a clamping mechanism for an input shaft with an internal spline, which belongs to the technical field of gear measurement, and is characterized in that after an internal and external spline sleeve is manually placed into an internal spline of an input shaft gear, the input shaft and the internal and external spline sleeve are together placed into a limiting ring to perform coarse positioning on the input shaft gear, and at the moment, an upper tip automatically rotates and descends; the outer spline housing can automatically enter the inner and outer spline housing located in the input shaft gear, the upper center abuts against an upper center hole of the input shaft gear, the limiting ring is separated from a bearing position of the gear, the upper center and the lower center complete clamping of the gear, and at the moment, the load of a driving shaft system can be transmitted into the input shaft gear through cooperation of splines. The positioning mechanism can be applied to gear single-face meshing detection or gear ghost frequency noise detection.

A workpiece rotating positioning device, which comprises a base body and a rotating shaft, a through rotating shaft mounting hole is formed in the base body, the rotating shaft mounting hole is horizontally arranged, the rotating shaft is rotatably arranged in the rotating shaft mounting hole, and both ends of the rotating shaft extend out of the rotating shaft mounting hole, one end of the rotating shaft is used for connecting a workpiece, a through positioning hole is further formed in the base body, the positioning hole is communicated with the rotating shaft mounting hole, and the positioning hole is perpendicular to the rotating shaft mounting hole, a positioning piece is inserted into the positioning hole, and when the positioning piece moves towards the rotating shaft mounting hole, the positioning piece abuts against the side surface of the rotating shaft to limit the rotation of the rotating shaft. The workpiece rotating positioning device can quickly and accurately clamp the workpiece, and ensures that the inner hole tip point is located directly below the marking machine.

This invention relates to a clamping fixture and method for adjustable clamping force of thin-walled soft magnetic alloy ring sleeves. The fixture includes a chuck assembly at the front end, a pull rod in the middle, and a pressure regulating cylinder at the rear end. The chuck assembly consists of a pneumatic three-jaw chuck body, sub-jaws, a clamping force measuring component, and a force measuring auxiliary jaw. The clamping force measuring component includes a force measuring contact and a force sensor. The three jaws at the front end of the pneumatic three-jaw chuck body form a mother jaw. The three sub-jaws are respectively fixed in the inner recesses at the front ends of the three mother jaws, and the inner surfaces of the three sub-jaws form a workpiece clamping surface. A radial insertion hole is provided on the inner side of each of the three mother jaws, into which a force measuring auxiliary jaw is inserted. A force measuring contact is installed at the outer end of at least one force measuring auxiliary jaw, and the force measuring contact is electrically connected to the force sensor via a connecting wire. Before clamping the workpiece, the inner surfaces of the three force measuring auxiliary jaws are in clamping contact with the clamping rod. By adjusting the air supply pressure, the clamping force can be measured and adjusted. This invention achieves adjustable clamping force.

The invention belongs to the technical field of machine manufacturing, and particularly relates to an automatic self-positioning circular outer clamping fixture for intelligently manufacturing flexible wires and an operation method. The push block mounting grooves with the multiple threaded holes are formed to be matched with radial push blocks of different specifications, and by means of the cross-shaped layout of the four radial push blocks and matching of the first guide inclined faces and the second guide inclined faces of the four radial push blocks, vertical locking force of the adjusting fastener is converted into accurate radial displacement facing the center; rapid self-centering and high-precision clamping of a workpiece are achieved, manual correction and a special adapter plate are not needed through the design, the clamping range is widened, efficiency is improved, meanwhile, the arc-shaped groove in the plane of the clamping part and the hook-shaped part at the bottom jointly provide stable multidirectional constraint, and the clamping precision is improved. And a side surface positioning arc groove, a robot clamping groove, an information identification code mounting groove and a standard interface of a bottom positioning gasket of the circular tray ensure seamless integration and reliable interaction with a flexible manufacturing system, and the clamping precision, the automation compatibility and the process stability are integrally improved.

This invention relates to the field of aero-engine manufacturing technology and discloses a hydraulic lateral pressure plate for processing aero-engine parts. The plate includes a base, on which a hydraulic feeding mechanism and a clamping mechanism are mounted. The hydraulic feeding mechanism includes a sliding cavity on one side of the base, in which a piston slides. A telescopic spring is provided between the piston and the sliding cavity. A fixing block is provided at the opening of the sliding cavity, through which the piston passes and slides in a sealing fit. A first oil passage is provided inside the base and is connected to the sliding cavity. The clamping mechanism includes a sealing cavity on the base, in which a clamping plug slides. A second oil passage is provided inside the base and is connected to the sealing cavity. A clamping plate is fixed on the base. The middle part of the piston is connected to the lateral pressure plate. Both ends of the lateral pressure plate extend between the clamping plug and the clamping plate for clamping and positioning. This invention solves the problems of low positioning accuracy, unstable clamping, mutual interference between feeding and clamping, and inconvenient resetting associated with traditional lateral pressure plates.

The application relates to the technical field of flange end face machining, and discloses an intelligent flange machining device, which comprises a flange clamping mechanism and a flange machining mechanism fixed on a workbench. The flange clamping mechanism comprises a clamping base, a placing assembly and two groups of clamping assemblies. Each clamping assembly is provided with a clamping jaw and a force sensor, and the clamping is realized through a clamping jaw driving cylinder. The flange machining mechanism is connected with the clamping mechanism through first, second and third sliding assemblies, and respectively comprises a driving motor, a transmission screw and a sliding rod, so that the X, Y and Z direction movements of the machining mechanism are realized. A cutter driving unit comprises a machining head assembly, is provided with a cutter box and a milling cutter, and is provided with image acquisition devices on both sides of the machining head. A control module is arranged at the bottom of the workbench and is electrically connected with the image acquisition devices, the force sensors, the clamping jaw driving cylinders and the driving motors. According to the application, the machining scheme can be dynamically adjusted according to the flatness deviation of different regions, and the automatic compensation and optimization of the uneven errors of the end face are realized.

The invention belongs to the technical field of machine manufacturing, and particularly relates to an automatic self-positioning circular collet clamp for intelligently manufacturing flexible wires and an operation method. By arranging the circular internal expansion collet which is matched with the conical surface of the collet driving part and is provided with the special driving hole, the conical surface of the driving arm is driven to extrude the driving hole by utilizing the axial locking of the adjusting fastener, so that the force is transmitted to the concentric arc-shaped long side on the cylindrical body through the upper side wall of the rectangular hole and the short side of the L-shaped hole, and is converted into uniform radial expansion force; according to the design, traditional manual correction and a special adapter plate are abandoned, the workpiece clamping range is remarkably widened, the efficiency is improved, seamless integration and reliable interaction with a flexible manufacturing system are ensured through a side face positioning arc groove, a robot clamping groove, an information identification code mounting groove and a bottom positioning gasket, and the machining precision is improved. The clamping precision, the automatic compatibility and the process stability are integrally improved, and the comprehensive cost and the abnormal rate are effectively reduced.

The application discloses a blade positioning reference casting mold which is used for preparing a positioning reference on the periphery of a blade of an aero-engine, and comprises a lower mold, a positioning mechanism, an upper mold and a quick-release mechanism. The lower mold is provided with a clamping position for mounting the blade. The positioning mechanism comprises two positioning blocks which are slidably arranged in the lower mold and are used for abutting against opposite sides of the blade. One side of the positioning block which faces the blade is provided with a cavity for forming the positioning reference. The upper mold is used for covering the lower mold and pressing the blade into the clamping position. The quick-release mechanism is connected with the upper mold and the lower mold and is used for locking and fixing the upper mold relative to the lower mold. The blade positioning reference casting mold can form a positioning reference which is convenient to clamp and position on the periphery of the blade. The blade is clamped and positioned by using the positioning reference, so that the clamping process is simplified, and the clamping efficiency and clamping precision are improved.

This utility model belongs to the field of welding fixture technology, specifically a welding fixture for the production of busbar radiators. It includes a left clamping plate and a right clamping plate, which together form a rectangular frame to accommodate the substrate and the heat sink. The left and right clamping plates are respectively provided with left and right clamping strips, and each clamping plate extends to form a clamping part. Each left and right clamping strip has an extension, the end faces of which are flush with the clamping parts for clamping the heat sink. The bottom surface of the clamping part has a groove for accommodating the substrate. Locking strips are detachably connected to the bottom of the left and right clamping plates to limit the substrate's position. It also includes a clamping structure located around the left and right clamping plates to lock them in place. By aligning and clamping the substrate and heat sink of the product using the left and right clamping plates, the clamping accuracy is significantly improved, ensuring unobstructed flow in the busbar radiator, guaranteeing welding dimensions, and increasing product yield.

The utility model belongs to the field of perpendicularity detection devices, and particularly relates to a hydraulic pump blade notch perpendicularity detection device which comprises a base assembly, a supporting assembly and a clamping assembly, the base assembly comprises a bottom box, a step groove is formed in the top of the bottom box, and the supporting assembly comprises a supporting plate and a servo motor. Four through grooves are formed in the supporting plate at equal angles, a support is fixedly connected to the bottom end face of the supporting plate, a worm gear is fixedly connected to the center of the support, a coupler is matched with the output end of the servo motor, a worm is matched with the coupler, and the clamping assembly comprises an electric push rod. The output end of the electric push rod is fixedly connected with a clamping block; precise rotary positioning of the supporting plate is achieved through meshing transmission of the worm and the worm wheel, synchronous data collection is achieved through the symmetrically-arranged perpendicularity detectors, distributed clamping guided by the through grooves is adopted, the blade notch perpendicularity detection speed is increased, and perpendicularity detection of blade notches of different sizes is compatible.

The utility model discloses an automatic feeding device which comprises a vibration disc, a feeding device and a pneumatic manipulator material taking device, the vibration disc is connected with a feeding die device, the pneumatic manipulator material taking device is located in front of the feeding device, and materials are fed into the feeding device in a directional arrangement mode through the vibration disc. And after being discharged, the material parts are taken out by the pneumatic manipulator material taking device and fed into a lathe fixture for subsequent treatment. Automatic feeding, clamping and material head processing are achieved, discharging stability and material clamping precision are improved, labor cost input is reduced, production efficiency is greatly improved, and the requirement for large-batch production can be met.