Clamping device for workpiece with inner spherical surface
By designing a clamping device with a fixed frame, clamping plate and lifting mechanism, the problem of inconvenient fixing of inner spherical workpieces is solved, and the workpiece is stably clamped and processed efficiently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XUGANG MASCH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-15
AI Technical Summary
Existing clamping equipment is difficult to effectively fix workpieces with inner spherical surfaces, which makes processing inconvenient, especially when grinding the outer wall of the workpiece, which makes fixing more difficult and affects processing efficiency.
A clamping device is designed, comprising a fixed frame, a clamping plate, a movable ring, and a lifting mechanism. The lifting mechanism drives the movable ring to move up and down, which in turn drives the rotating plate to rotate. The rotating plate then drives multiple movable plates to move closer to or further away, thereby achieving stable clamping of the workpiece.
It improves workpiece clamping efficiency, ensures workpiece processing stability and speed, and is suitable for efficient fixing of internal spherical workpieces.
Smart Images
Figure CN224239232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece clamping equipment, specifically a workpiece clamping device with an inner spherical surface. Background Technology
[0002] The inner spherical surface is a common geometric feature, widely used in bearings, valves, molds, medical devices and other fields. The difficulty in its processing lies in high-precision curved surface forming and surface finish control.
[0003] When using equipment to process workpieces with inner spherical surfaces, existing clamping equipment can only press and fix the outer wall of the workpiece. When the outer wall of the workpiece needs to be ground, fixing the workpiece is more troublesome, which makes the clamping and positioning of the workpiece very inconvenient and affects the processing efficiency of the workpiece. Utility Model Content
[0004] The purpose of this invention is to provide a workpiece clamping device with an inner spherical surface to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A workpiece clamping device with an inner spherical surface includes a fixing frame and further includes:
[0007] The clamping plate has a fixed cylinder at the top of the fixed frame, a support plate at the top of the fixed cylinder, a groove on the support plate, a movable plate slidably disposed inside the groove, a clamping plate at the top of the movable plate passing through the support plate, a connecting rod on the clamping plate, a fixed ball head at one end of the connecting rod, a screw hole on the clamping plate, and the bottom end of the connecting rod passing through the screw hole.
[0008] The fixed cylinder has a fixed ring and a movable ring on its outside. Both the fixed ring and the movable ring have connecting blocks on their outside. The connecting blocks have rotating plates on their outside. The movable plates have hinge seats on their outside. One end of the rotating plate is rotatably connected to the hinge seats.
[0009] The lifting mechanism, located inside the fixed cylinder, can drive the movable ring to move up and down.
[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0011] In one alternative embodiment: the lifting mechanism includes a threaded rod, a nut, and a turntable; a fixed plate is provided at the bottom of the fixed cylinder; a threaded rod is rotatably provided on the fixed plate; the top end of the threaded rod is rotatably connected to the fixed cylinder; a lifting plate is slidably provided inside the fixed cylinder; a nut that cooperates with the threaded rod is provided on the lifting plate; and a handle is provided at the bottom end of the threaded rod.
[0012] In one alternative: the outer wall of the fixed cylinder is provided with a connecting groove, and the lifting plate passes through the connecting groove and is connected to the movable ring.
[0013] In one alternative: a screw is provided on the fixing plate, and the top end of the screw passes through the fixing frame and is provided with a nut.
[0014] In one alternative: the bottom of the fixing frame is provided with multiple mounting slots, and mounting bolts are provided inside the mounting slots.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The clamping device for workpieces with inner spherical surfaces can fix the workpieces on the support plate, making the clamping of the workpieces more convenient. It is suitable for processing workpieces with inner spherical surfaces. The lifting mechanism drives the movable ring to move up and down, and the movable ring moves up and down and drives the rotating plate to rotate. The rotating plate drives multiple movable plates to move closer or further away from each other, and multiple clamping plates move away from each other and fix the workpiece body, ensuring the clamping efficiency of the workpiece and improving the workpiece processing speed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a clamping device for a workpiece with an inner spherical surface.
[0018] Figure 2 This is a cross-sectional view of the support plate in a clamping device for a workpiece with an inner spherical surface.
[0019] Figure 3 This is a cross-sectional view of the fixed cylinder in a clamping device for a workpiece with an inner spherical surface.
[0020] Figure reference numerals: 1-Fixed frame, 2-Fixed cylinder, 201-Connecting groove, 3-Fixed plate, 4-Screw, 5-Nut, 6-Rotating plate, 7-Modible plate, 8-Clamping plate, 801-Screw hole, 9-Support plate, 901-Groove, 10-Workpiece body, 11-Connecting rod, 12-Fixed ball head, 13-Modible ring, 14-Mounting groove, 15-Threaded rod, 16-Turntable, 17-Hinge seat, 18-Fixed ring, 19-Lifting plate, 20-Nut, 21-Connecting block. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope.
[0022] In one embodiment, such as Figure 1-3 As shown, a workpiece clamping device with an inner spherical surface includes a fixing frame 1, and further includes:
[0023] A clamping plate 8 is provided. A fixing cylinder 2 is provided at the top of the fixing frame 1. A support plate 9 is horizontally provided at the top of the fixing cylinder 2. A groove 901 is provided on the support plate 9. A movable plate 7 is slidably disposed inside the groove 901. The top of the movable plate 7 passes through the support plate 9 and is fitted with a clamping plate 8. A connecting rod 11 is provided on the clamping plate 8. A fixed ball head 12 is provided at one end of the connecting rod 11. A screw hole 801 is provided on the clamping plate 8. The bottom end of the connecting rod 11 passes into the screw hole 801, i.e., the connecting rod 11 is threadedly engaged with the clamping plate 8. The connecting rod 11 can be removed from the clamping plate 8. The clamping plates 8 are close together and press and fix the outer wall of the workpiece body 10, facilitating the processing of the inner spherical surface of the workpiece body 10. The connecting rod 11 is installed on the clamping plate 8, and multiple clamping plates 8 are spaced apart. The inner spherical surface is pressed by the fixed ball head 12. Figure 1 As shown, the outer wall of the workpiece body 10 is machined to make the clamping device more applicable.
[0024] The fixed cylinder 2 is provided with a fixed ring 18 and a movable ring 13. The fixed ring 18 is fixedly mounted on the fixed cylinder 2, and the movable ring 13 can slide up and down. Both the fixed ring 18 and the movable ring 13 are fixedly mounted with connecting blocks 21. A rotating plate 6 is rotatably mounted on the connecting block 21. A hinge seat 17 is provided on the outside of the movable plate 7. One end of the rotating plate 6 is rotatably connected to the hinge seat 17. The movable ring 13 moves up and down and drives the rotating plate 6 to rotate. The rotating plate 6 drives multiple movable plates 7 to move closer or further away from each other, which facilitates the adjustment of the position of the clamping plate 8.
[0025] The lifting mechanism is located inside the fixed cylinder 2 and can drive the movable ring 13 to move up and down.
[0026] The workpiece clamping device with an inner spherical surface uses a lifting mechanism to drive the movable ring 13 to move up and down. The movable ring 13 moves up and down and drives the rotating plate 6 to rotate. The rotating plate 6 drives multiple movable plates 7 to move closer or further away from each other, and multiple clamping plates 8 move away from each other and fix the workpiece body 10, making the workpiece clamping more convenient. It is suitable for processing workpieces with an inner spherical surface. As an embodiment, the left, right, up and down positions of the various components shown in the attached figure are only one arrangement. The specific positions are set according to specific needs.
[0027] In one embodiment, such as Figure 1-3 As shown, the lifting mechanism includes a threaded rod 15, a nut 20, and a turntable 16. A fixed plate 3 is provided at the bottom of the fixed cylinder 2, and the threaded rod 15 is rotatably mounted on the fixed plate 3. The top end of the threaded rod 15 is rotatably connected to the fixed cylinder 2. A lifting plate 19 is slidably mounted inside the fixed cylinder 2. A nut 20 that cooperates with the threaded rod 15 is provided on the lifting plate 19. A handle 16 is provided at the bottom end of the threaded rod 15. The threaded rod 15 is rotated by the handle 16, and the threaded rod 15 drives the lifting plate 19 and the movable ring 13 to move up and down.
[0028] In one embodiment, such as Figure 3 As shown, the outer wall of the fixed cylinder 2 is provided with a connecting groove 201, and the lifting plate 19 passes through the connecting groove 201 and is connected to the movable ring 13.
[0029] In one embodiment, such as Figure 1-2 As shown, a screw 4 is provided on the fixing plate 3. The top end of the screw 4 passes through the fixing frame 1 and is provided with a nut 5. The fixing cylinder 2 moves up and down and drives the screw 4 to move. The nut 5 limits the screw 4.
[0030] In one embodiment, such as Figure 1 As shown, the bottom of the fixing frame 1 is provided with multiple mounting slots 14, and mounting bolts are provided inside the mounting slots 14.
[0031] The above embodiments of this utility model provide a workpiece clamping device with an inner spherical surface. The workpiece body 10 to be processed is placed on the support plate 9. The handle 16 drives the threaded rod 15 to rotate, and the threaded rod 15 drives the lifting plate 19 and the movable ring 13 to move up and down. The movable ring 13 drives the rotating plate 6 to rotate, and the rotating plate 6 drives multiple movable plates 7 to move closer or further apart, which facilitates the adjustment of the position of the clamping plate 8. The connecting rod 11 is removed, and the clamping plates 8 move closer together and press and fix the outer wall of the workpiece body 10 to process the inner spherical surface of the workpiece body 10. The connecting rod 11 is installed on the clamping plate 8, and the multiple clamping plates 8 move further apart. The inner spherical surface is pressed by the fixed ball head 12 to process the outer wall of the workpiece body 10, making the clamping of the workpiece more convenient.
[0032] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A clamping device for a workpiece having an inner spherical surface, comprising a fixing frame, characterized in that, Also includes: The clamping plate has a fixed cylinder at the top of the fixed frame, a support plate at the top of the fixed cylinder, a groove on the support plate, a movable plate slidably disposed inside the groove, a clamping plate at the top of the movable plate passing through the support plate, a connecting rod on the clamping plate, a fixed ball head at one end of the connecting rod, a screw hole on the clamping plate, and the bottom end of the connecting rod passing through the screw hole. The fixed cylinder has a fixed ring and a movable ring on its outside. Both the fixed ring and the movable ring have connecting blocks on their outside. The connecting blocks have rotating plates on their outside. The movable plates have hinge seats on their outside. One end of the rotating plate is rotatably connected to the hinge seats. The lifting mechanism, located inside the fixed cylinder, can drive the movable ring to move up and down.
2. The workpiece clamping device with an inner spherical surface according to claim 1, characterized in that, The lifting mechanism includes a threaded rod, a nut, and a turntable. A fixed plate is provided at the bottom of the fixed cylinder, and a threaded rod is rotatably provided on the fixed plate. The top end of the threaded rod is rotatably connected to the fixed cylinder. A lifting plate is slidably provided inside the fixed cylinder. A nut that cooperates with the threaded rod is provided on the lifting plate, and a handle is provided at the bottom end of the threaded rod.
3. The workpiece clamping device with an inner spherical surface according to claim 2, characterized in that, The outer wall of the fixed cylinder has a connecting groove, and the lifting plate passes through the connecting groove and is connected to the movable ring.
4. The workpiece clamping device with an inner spherical surface according to claim 2, characterized in that, A screw is provided on the fixing plate, and the top end of the screw passes through the fixing frame and is provided with a nut.
5. The workpiece clamping device with an inner spherical surface according to claim 1, characterized in that, The bottom of the mounting frame has multiple mounting slots, and mounting bolts are installed inside the mounting slots.