A positioning and clamping assembly for precision device processing
By combining the adjustment mechanism and the clamping mechanism, flexible clamping and all-round cleaning of precision parts are achieved, solving the problems of insufficient adaptability and cleanliness of traditional positioning and clamping components in precision part processing, and improving processing accuracy and efficiency.
Patent Information
- Application Number
- CN202511439345.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2045-10-10
AI Technical Summary
Traditional positioning and clamping components cannot flexibly adjust the clamping force in precision component processing, have poor adaptability, are insufficient for irregularly shaped components or components with grooves or holes, and are difficult to achieve the combined functions of clamping, positioning and cleaning, thus affecting processing accuracy and efficiency.
A positioning and clamping assembly including an adjustment mechanism and a clamping mechanism is designed. It combines external and internal clamping methods. The clamping mechanism can adjust the height and angle. It is equipped with a cleaning or air blowing device for all-round cleaning, realizing multi-station automated operation.
It improves the adaptability and precision of clamping, ensures processing stability, extends equipment life, and improves processing efficiency and cleanliness.
Smart Images

Figure CN120901739B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of positioning and clamping mechanism, in particular to a positioning and clamping assembly for precision device processing. BACKGROUND
[0002] In the field of precision device processing, positioning and clamping assembly as a key structure to ensure the processing precision, processing stability and equipment efficiency has been widely used in various numerical control machine tools, automatic assembly equipment and intelligent manufacturing units. The traditional positioning and clamping assembly mostly relies on mechanical clamps or simple pneumatic devices, usually has the characteristics of simple structure and low manufacturing cost, but has certain limitations in actual application, such as the clamping force cannot be flexibly adjusted according to the structure of the device, poor adaptability to special-shaped or recessed hole devices, easy to cause damage to the surface of the device or positioning error during clamping, etc. In addition, in complex working conditions or multi-station automatic operation, the traditional clamping assembly is often difficult to complete the functions of clamping, positioning and cleaning, affecting the overall processing efficiency and precision control. SUMMARY
[0003] Therefore, in order to solve the above problems, the present application provides a positioning and clamping assembly for precision device processing.
[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: a positioning and clamping assembly for precision device processing, comprising an adjusting mechanism, the adjusting mechanism is provided with a clamping mechanism at the top, the clamping mechanism is used for clamping the outside or inside of the device, and the clamping mechanism adjusts the height and angle position with the adjusting mechanism; the adjusting mechanism comprises a bottom plate for supporting, a support rod arranged at the top left end of the bottom plate, a guide arranged at the upper end of the support rod, a rotating part connected to the right side of the support rod, a guide column arranged at the lower end of the rotating part and connected to the bottom plate at the bottom, a moving part connected to the upper end of the rotating part, a support part connected to the moving part and arranged at the top of the bottom plate, and a cylinder mounted on the top of the support part, the cylinder bottom push rod penetrates the support part and connects the moving part, and the top of the rotating part is connected with the clamping mechanism.
[0005] Preferably, a guide groove is formed on the outside of the rotating part, and the guide groove is movably embedded in the guide.
[0006] Preferably, the upper end of the rotating part is disc-shaped, and the disc is movably embedded into the inside of the moving part.
[0007] Preferably, a sliding groove is formed in the middle of the support part for the sliding of the moving part.
[0008] Preferably, the clamping mechanism comprises a guide shell arranged at the top of the rotating member, a driving motor arranged at the bottom of the guide shell, a top cover arranged at the top of the guide shell, a transmission mechanism arranged in the middle of the guide shell and connected to the top output shaft of the driving motor, a movable member penetrating the guide shell and connected to the transmission mechanism inside, and a contact arm arranged outside the movable member, and the top of the transmission mechanism is connected to the inside of the top cover.
[0009] Preferably, the movable member is provided with three groups.
[0010] Preferably, the transmission mechanism comprises a rotating rod connected to the output shaft of the driving motor at the bottom and provided with threads at the lower end outside, a sliding member threadedly connected to the lower end outside of the rotating rod, three groups of connecting rods hinged to the outside of the sliding member, and a linkage rod hinged to the connecting rods at the middle outside, and the upper end of the connecting rod and the lower end of the linkage rod are respectively hinged to the upper and lower positions inside the movable member.
[0011] Preferably, the sliding member is provided with a protrusion at the three ends outside, and the protrusions are hinged to the connecting rods.
[0012] Preferably, the inside of the movable member is provided with a gas spring, the top of the gas spring is provided with a push rod connected to an adapter block, and the outside of the adapter block is connected to the contact arm.
[0013] Preferably, a strip-shaped groove is arranged outside the movable member, and the strip-shaped groove is penetrated by the adapter block.
[0014] The beneficial effects of the present application are as follows:
[0015] The clamping mechanism is provided, which combines the clamping modes of the outside clamping and the inside groove and hole clamping, can flexibly adjust the clamping mode according to different device shapes, improves the adaptability, ensures stable and efficient clamping action, adjusts the height of the contact arm for the inside clamping requirement, meets the clamping requirements of different groove and hole depths, and installs the adjusting mechanism at the bottom of the clamping mechanism, which can synchronously adjust the up-down position and angle of the device, improve the flexibility and operation precision of the mechanism, in addition, the processing station can cooperate with the external cleaning or blowing device to comprehensively clean or blow during the downward movement of the clamping mechanism, effectively ensure the cleanliness of the equipment and the neatness of the processing environment, prolong the service life of the equipment, and overall improve the adaptability, precision and maintenance convenience of the automatic clamping system. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic diagram of the present application;
[0017] Figure 2 is a structural schematic diagram of the adjusting mechanism of the present application;
[0018] Figure 3 is a connecting structure schematic diagram of the rotating member of the present application;
[0019] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention;
[0020] Figure 5 This is a schematic diagram of the transmission mechanism structure of the present invention;
[0021] Figure 6 This is a schematic diagram of the structure of the movable component of the present invention.
[0022] The components include: adjustment mechanism-1, clamping mechanism-2, base plate-11, support rod-12, guide component-13, rotating component-14, guide column-15, moving component-16, support component-17, cylinder-18, guide shell-21, drive motor-22, top cover-23, transmission mechanism-24, moving component-25, contact arm-26, rotating rod-241, sliding component-242, connecting rod-243, linkage rod-244, gas spring-251, and connecting block-252. Detailed Implementation
[0023] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.
[0024] Please see Figure 1 The present invention provides a positioning and clamping assembly for precision device processing, including an adjustment mechanism 1 for synchronous adjustment of vertical position and angle, and a clamping mechanism 2 installed at the top front end of the adjustment mechanism 1, which can realize the inner clamping or outer stable clamping of the workpiece.
[0025] Please see Figures 2-3 The adjustment mechanism 1 includes a base plate 11 for support. A support rod 12 is vertically welded to the top left end of the base plate 11. A guide member 13 is installed at the upper end of the support rod 12. A rotating member 14 is connected to the right side of the guide member 13. A guide groove is opened on the outer side of the rotating member 14. The guide member 13 is movable and embedded inside the guide groove. The lower end of the rotating member 14 is sleeved on the outer side of the guide post 15. The bottom of the guide post 15 is fixed to the top of the base plate 11. A clamping mechanism 2 is connected to the top of the rotating member 14. The upper outer end of the rotating member 14 is disc-shaped. The rear end of the disc is movable and embedded inside the moving member 16. The rear end of the moving member 16 is connected to a support member 17. The bottom of the support member 17 is welded to the top of the base plate 11. A sliding groove for the moving member 16 to slide is opened in the middle of the support member 17. A cylinder 18 is installed in the middle of the top of the support member 17. The bottom push rod of the cylinder 18 passes through the support member 17 and connects to the moving member 16. The moving member 16 moves up and down with the cylinder 18.
[0026] Please see Figures 4-6The clamping mechanism 2 includes a guide shell 21 on which the top of the rotating part 14 is mounted, a drive motor 22 is mounted on the bottom of the guide shell 21, a top cover 23 is fixed on the top of the guide shell 21, three sets of movable parts 25 extend through the outside of the guide shell 21, a contact arm 26 is connected to the outside of the movable parts 25, and a transmission mechanism 24 connecting the drive motor 22 and the movable parts 25 is installed inside the guide shell 21.
[0027] The transmission mechanism 24 includes a rotating rod 241 with its upper end located in the middle of the top cover 23. The lower outer end of the rotating rod 241 is threaded, and the bottom of the rotating rod 241 is connected to the output shaft of the drive motor 22. The lower outer end of the rotating rod 241 is threaded to the sliding member 242. The three ends of the outer side of the sliding member 242 are protruding. A connecting rod 243 is hinged to the inner side of the protruding position. The middle part of the connecting rod 243 is hinged to the linkage rod 244. The upper end of the connecting rod 243 and the lower end of the linkage rod 244 are respectively hinged to the upper and lower positions of the inner side of the movable member 25.
[0028] The movable part 25 has a cavity inside, and a gas spring 251 is installed at the bottom of the cavity. The top of the gas spring 251 pushes out a rod to connect to the connecting block 252. The movable part 25 has a strip groove on its outer side, and the connecting block 252 passes through the strip groove to connect to the contact arm 26.
[0029] The specific implementation process is as follows:
[0030] When clamping the device is required, it can be clamped on the outside or in the inside of the groove or hole according to the shape of the device. The device is placed on the top of the top cover 23. The drive motor 22 is started and rotated, which drives the rotating rod 241 to rotate. During the rotation of the rotating rod 241, the sliding part 242 moves up and down. During the movement, the connecting rod 243 is subjected to force on the linkage rod 244, which pushes out or pulls back the movable part 25, so that the contact arm 26 clamps the device. If it is necessary to clamp the device on the inside according to the depth of the groove or hole, the gas spring 251 inside the movable part 25 can be activated to lift the connecting block 252. When the connecting block 252 is lifted, the height of the outer contact arm 26 can be adjusted.
[0031] When a lowering or rotation adjustment is required, cylinder 18 is activated. Cylinder 18 acts on moving part 16, which causes rotating part 14 to move down. During the downward movement, the guide groove on the outer side can contact guide part 13, allowing rotating part to rotate during the downward movement. If reset is required, moving part 16 can be pulled back by cylinder 18. Alternatively, a cleaning or blowing mechanism can be provided at the lower end of the processing station to facilitate all-round cleaning or blowing of the workpiece or clamping mechanism 2 during the downward movement. The cleaning nozzle or blowing nozzle can be oriented and not move, thus achieving comprehensive cleaning from multiple directions.
[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A positioning and clamping assembly for precision component machining, characterized in that: It includes an adjustment mechanism, on the top of which is a clamping mechanism. The clamping mechanism is used to clamp the device from the outside or the inside, and the height and angle position of the clamping mechanism are adjusted with the adjustment mechanism. The adjustment mechanism includes a base plate for support, a support rod located at the top left end of the base plate, a guide member located at the upper end of the support rod, a rotating member connected to the right side of the support rod, a guide column located at the lower end of the rotating member and connected to the base plate at its bottom, a moving member connected to the upper end of the rotating member, a support member connected to the moving member and located at the top of the base plate at its bottom, and a cylinder installed on the top of the support member. The bottom push rod of the cylinder passes through the support member and connects to the moving member, and the top of the rotating member is connected to a clamping mechanism. The rotating component has a guide groove on its outer side, and the guide groove is movable and embedded inside the guide component. The clamping mechanism includes a guide shell located at the top of the rotating component, a drive motor installed at the bottom of the guide shell, a top cover located at the top of the guide shell, a transmission mechanism located in the middle of the guide shell and connected to the top output shaft of the drive motor, a movable component that passes through the guide shell and is connected to the transmission mechanism on its inner side, and a contact arm located on the outer side of the movable component. The top of the transmission mechanism is connected to the inside of the top cover. The movable component is provided in three sets. The transmission mechanism includes a rotating rod with a drive motor output shaft connected to the bottom and a threaded lower end on the outer side, a sliding member threaded to the lower end of the rotating rod, three sets of connecting rods hinged to the outer side of the sliding member, and a linkage rod hinged to the connecting rods in the middle of the outer side. The upper end of the connecting rod and the lower end of the linkage rod are respectively hinged to the upper and lower positions of the inner side of the movable part.
2. The positioning and clamping assembly for precision device machining according to claim 1, characterized in that: The upper outer end of the rotating component is disc-shaped, and the rear end of the disc is movably embedded into the interior of the moving component.
3. The positioning and clamping assembly for precision device processing according to claim 2, characterized in that: The support member has a groove in the middle for the moving part to slide.
4. The positioning and clamping assembly for precision device machining according to claim 1, characterized in that: The sliding member has three protruding ends on its outer side, and the protruding positions are hinged to connecting rods.
5. The positioning and clamping assembly for precision device machining according to claim 4, characterized in that: The movable part is equipped with a gas spring inside, and the top of the gas spring push rod is connected to the connecting block. The outer side of the connecting block is connected to the contact arm.
6. The positioning and clamping assembly for precision device machining according to claim 5, characterized in that: The movable part has a strip groove on its outer side, and the strip groove is penetrated by a connecting block.
Citation Information
Patent Citations
Machining mechanism for automobile engine cylinder cover
CN112846897A
Positioning device for machining slender shaft part
CN219837476U