6results 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.

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 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.

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 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.