Centering and clamping device for machining jig
The workpiece is clamped by sliding the inclined clamping block driven by the bottom cylinder. Combined with the inclined clamping block push block and pull block structure, the problem of non-compact existing fixture structure is solved, and efficient centering, clamping and loosening of the workpiece is achieved.
Patent Information
- Application Number
- CN202423198099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing centering fixtures require multiple drivers, are not compact enough, and their clamping performance needs improvement.
It adopts a combination structure of bottom cylinder, inclined clamping block, inclined clamping block push block and inclined clamping block pull block. It uses a bottom cylinder as a power source and realizes the centering clamping and loosening of the workpiece through the sliding of the inclined clamping block and the cooperation of the inclined guide protrusion.
It achieves synchronous clamping and centering of workpieces, has a compact structure, good clamping effect, and only requires one power source to complete the clamping and releasing operations.
Smart Images
Figure CN223656832U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of machining clamping, and particularly relates to a machining jig centering and clamping device. BACKGROUND
[0002] A centering fixture is a fixture used in the machining or assembling process to automatically center a workpiece or quickly find the center position and clamp and fix it. At present, the existing centering fixture usually needs multiple drivers, and the whole structure is not compact enough, and the clamping effect needs to be further improved. SUMMARY
[0003] The utility model discloses a machining jig centering and clamping device to solve the technical problems of the prior art. The device can center and clamp a workpiece, has a clever structure, occupies less space and has good clamping effect.
[0004] The utility model discloses a machining jig centering and clamping device, which is characterized by the following technical scheme:
[0005] A machining jig centering and clamping device, comprising a base plate, a positioning vertical plate, a bottom cylinder, a front cylinder, an inclined pressing block, a guide mounting plate, an inclined pressing block push block and an inclined pressing block pull block.
[0006] The positioning vertical plate is fixedly installed on the base plate, and the guide mounting plate is fixedly installed on the top side of the positioning vertical plate; two inclined pressing blocks are symmetrically and slidably installed on the guide mounting plate.
[0007] A bottom cylinder is arranged below the inclined pressing block, the action end of the bottom cylinder is connected to the inclined pressing block push block, the inclined pressing block push block has transverse supporting arms on both sides, and the two inclined pressing blocks are located above the transverse supporting arms on both sides of the inclined pressing block push block; the positions between the two inclined pressing blocks are used for placing a workpiece.
[0008] A supporting leg is arranged on the inner side of the bottom of the inclined pressing block, the inclined pressing block pull block is installed on the top of the inclined pressing block push block, and the inclined pressing block pull block is located above the supporting leg of the inclined pressing block.
[0009] The action end of the front cylinder is opposite to the front surface of the workpiece, and the front cylinder is used for pressing the front surface of the workpiece.
[0010] In the above technical scheme, an inclined guide protrusion is arranged on the guide mounting plate, corresponding long-hole through holes are arranged on the inclined pressing block, the guide protrusion is slidably embedded in the long-hole through holes, so that the inclined pressing block is slidably installed on the guide mounting plate and can slide along the inclined guide protrusion.
[0011] In the above technical scheme, the inclined pressing block push block has a cross-shaped structure.
[0012] In the above technical solution, an arc-shaped protrusion is provided on the surface of the transverse support arm, which can reduce the friction between the transverse support arm and the transverse pressure block during the transverse movement of the inclined pressure block.
[0013] In the above technical solution, a control handle is provided on the base plate to control the movement of the bottom cylinder and the front cylinder.
[0014] In the above technical solution, the front cylinder is fixedly mounted on the positioning plate or guide mounting plate by connecting brackets on both sides.
[0015] Advantages and beneficial effects of this utility model:
[0016] This invention relates to a machining fixture centering and clamping device, comprising a bottom cylinder, an inclined clamping block, an inclined clamping block pusher, and an inclined clamping block puller. When the actuating end of the bottom cylinder extends upward, it drives the inclined clamping block pusher to move upward. The lateral support arm of the inclined clamping block pusher then pushes the inclined clamping block upward. During this upward movement, under the action of the inclined guide protrusion, the two inclined clamping blocks move laterally inward, simultaneously clamping the left and right sides of the workpiece, thus completing the centering and clamping of the workpiece. During the retraction of the bottom cylinder, it drives the inclined clamping block pusher and the inclined clamping block puller downward. The inclined clamping block puller then presses down on the support leg of the inclined clamping block, causing the inclined clamping block to move downward synchronously. During this downward movement, under the action of the inclined guide protrusion, the inclined clamping block opens to both sides, thus releasing the workpiece. Furthermore, this invention also includes a front cylinder, the actuating end of which faces the front of the workpiece, pressing the front of the workpiece.
[0017] The machining fixture centering and clamping device of this utility model can complete the synchronous left and right clamping and centering of the workpiece using only a bottom cylinder as a power source. Its ingenious structure occupies little space and has a good clamping effect. Attached Figure Description
[0018] Figure 1 This is a partial structural schematic diagram of the centering and clamping device for machining fixtures according to this utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure of the centering and clamping device for machining fixtures of this utility model.
[0020] For those skilled in the art, other related figures can be obtained from the above figures without any creative effort. Detailed Implementation
[0021] The technical solution of this utility model will be further described below with reference to specific embodiments.
[0022] A centering and clamping device for machining fixtures, such asFigure 1 and Figure 2 As shown in the figure, the device comprises a base plate 8, a positioning vertical plate 9, a bottom cylinder 5, a front cylinder 7, an inclined pressing block 4, a guide mounting plate 3, an inclined pressing block push block 61 and an inclined pressing block pull block 62.
[0023] The base plate 8 serves as the installation base of the entire device, the positioning vertical plate 9 is fixedly installed on the base plate 8, and the guide mounting plate 3 is fixedly installed on the top side of the positioning vertical plate 9; two inclined pressing blocks 4 are symmetrically and slidably installed on the guide mounting plate 3. Specifically, inclined guide protrusions 2 are arranged on the guide mounting plate 3, and corresponding long-hole through holes 41 are arranged on the inclined pressing blocks 4, the inclined guide protrusions 2 are slidably embedded in the long-hole through holes 41, so that the inclined pressing blocks 4 are slidably installed on the guide mounting plate 3 and can slide along the inclined guide protrusions 2. The positions between the two inclined pressing blocks 4 are used to place the workpiece 1. By driving the two inclined pressing blocks 4 to slide obliquely along the guide protrusions 2, the workpiece 1 can be centered and clamped. The following will specifically introduce how to drive the two inclined pressing blocks 4 to act.
[0024] A bottom cylinder 5 is arranged below the inclined pressing block 4, the bottom cylinder 5 is fixedly installed on the base plate 8 by bolts, and the action end of the bottom cylinder 5 is arranged upward. The action end of the bottom cylinder 5 is connected to the inclined pressing block push block 61, which has a cross-shaped structure and has lateral supporting arms 611 on both sides. The two inclined pressing blocks 4 are respectively located above the lateral supporting arms 611 on both sides of the inclined pressing block push block 61. When the action end of the bottom cylinder 5 extends upward, the inclined pressing block push block 61 is driven to move upward, and then the lateral supporting arms 611 of the inclined pressing block push block 61 push the inclined pressing blocks 4 to move upward. During the upward movement of the inclined pressing blocks 4, the two inclined pressing blocks 4 will move laterally inward under the action of the inclined guide protrusions 2, so as to clamp the left and right sides of the workpiece 1. Further, arc-shaped protrusions a are arranged on the surfaces of the lateral supporting arms 611, so as to reduce the friction between the lateral supporting arms 611 and the inclined pressing blocks 4 during the lateral movement of the inclined pressing blocks 4.
[0025] A supporting leg 42 is arranged on the inner side of the bottom of the inclined pressing block 4, and the inclined pressing block pull block 62 is installed on the top of the inclined pressing block push block 61 and located above the supporting leg 42 of the inclined pressing block 4. During the contraction of the bottom cylinder 5, the bottom cylinder 5 drives the inclined pressing block push block 61 and the inclined pressing block pull block 62 to move downward together, and then the inclined pressing block pull block 62 presses the supporting leg 42 of the inclined pressing block 4, drives the inclined pressing block 4 to move downward synchronously, and the inclined pressing block 4 will open to both sides under the action of the inclined guide protrusions 2 during the downward movement, so as to release the workpiece 1.
[0026] The front face air cylinder 7 is fixedly installed on the positioning vertical plate 9 or the guide mounting plate 3 through the connecting frames 71 on both sides of the front face air cylinder 7, and the action end of the front face air cylinder 7 is opposite to the front face of the workpiece 1, and then the front face air cylinder 7 is used to press the front face of the workpiece 1 (the workpiece 1 is first clamped by the two inclined pressing blocks 4, and then the front face air cylinder 7 is used to press the workpiece 1), and the back face of the workpiece 1 is attached to the positioning vertical plate 9.
[0027] Further, the control handle 10 is arranged on the bottom plate 8 and is used to control the action of the bottom air cylinder 5 and the front face air cylinder 7.
[0028] The above is only used for explaining the utility model by means of diagrams, and is not used for limiting the utility model in the shown and described structure and use range, so any corresponding modification and equivalent matter made in the spirit and principle of the utility model belongs to the patent range applied by the utility model.
Claims
1. A machining jig centering clamping device, characterized by: The device comprises a bottom plate, a positioning vertical plate, a bottom cylinder, a front cylinder, an oblique pressing block, a guide mounting plate, an oblique pressing block pusher and an oblique pressing block puller. The positioning vertical plate is fixedly installed on the bottom plate, and the guide mounting plate is fixedly installed on the top side of the positioning vertical plate. The two oblique pressing blocks are symmetrically and slidably installed on the guide mounting plate. A bottom cylinder is arranged below the oblique pressing block, and the action end of the bottom cylinder is connected with the oblique pressing block pusher. The oblique pressing block puller is installed on the top of the oblique pressing block pusher and is located above the supporting leg of the oblique pressing block.
2. The machining jig centering clamp apparatus of claim 1, wherein: The action end of the front cylinder is opposite to the front side of the workpiece, and the front cylinder is used for pressing the front side of the workpiece.
3. The machining jig centering clamp apparatus of claim 1, wherein: An inclined guide protrusion is arranged on the guide mounting plate, and a corresponding long hole is arranged on the oblique pressing block.
4. The machining jig centering clamp apparatus of claim 1, wherein: The oblique pressing block pusher is in a cross type structure.
5. The machining jig centering clamp apparatus of claim 1, wherein: An arc protrusion is arranged on the surface of the horizontal supporting arm.
6. The machining jig centering clamp apparatus of claim 1, wherein: A control handle is arranged on the bottom plate, which is used for controlling the action of the bottom cylinder and the front cylinder. The front cylinder is fixedly installed on the positioning vertical plate or the guide mounting plate through the connecting frames on both sides of the front cylinder.