Primary-secondary integrated shared clamp

By designing a combined mother-daughter shared fixture, and utilizing structures such as wave-shaped top blocks and self-centering vises, the workpiece can be quickly clamped and disassembled, solving the problem of multiple disassembly and clamping operations in mold making on CNC equipment, and improving processing efficiency and accuracy.

CN223776617UActive Publication Date: 2026-01-09WENLING VOCATIONAL TECH SCHOOL
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Patent Information

Application Number
CN202520393937.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-09
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

When making molds on CNC equipment, the workpiece needs to be disassembled, clamped, and aligned multiple times, which makes it difficult to guarantee the processing quality of high-precision parts, and the operation time is long and the labor intensity is high.

Method used

Design a mother-daughter integrated shared fixture, including a mother plate and a daughter plate. Utilize structures such as wave-shaped top blocks, locking sliders, and self-centering vises to achieve rapid clamping and unclamping of workpieces. The self-locking function is achieved through the cooperation of springs and balls, reducing clamping time.

Benefits of technology

Workpiece clamping time is reduced from 10 minutes to 30 seconds, multi-process clamping and alignment are optimized, downtime is reduced by 90%, and production efficiency and industry profits are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a primary-secondary integrated shared clamp, and belongs to the technical field of machinery. The problems that in the machining process of existing numerical control equipment, a workpiece is disassembled and clamped many times, operation auxiliary time is long, and efficiency is affected are solved. The child-mother integrated shared clamp comprises a mother disc installed on numerical control equipment and a child disc used for positioning and clamping a workpiece, the mother disc comprises a bottom plate and a supporting bearing installed on the bottom plate, the supporting bearing is provided with a wavy top block, and the top face of the wavy top block is provided with an uneven wavy face. The mother disc further comprises a shell and an upper cover plate which are connected with each other, the son disc comprises a clamp base plate and a self-centering vice for clamping a workpiece, the upper cover plate is matched with the clamp base plate through a prismatic positioning pin, and a locking sliding block which ascends and descends along the inner wall of the shell is arranged in the shell. The utility model has the advantages that the workpiece can be quickly separated and clamped, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a shared clamp that combines mother and child components. Background Technology

[0002] During the machining process on CNC equipment, the applicant found that the workpiece needed to be disassembled, clamped, and aligned multiple times during the mold making operation, and the operation assistance time was long and the labor intensity was high, making it difficult to guarantee the machining quality of high-precision parts. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a combined mother-daughter shared clamp to solve these problems.

[0004] The objective of this utility model can be achieved through the following technical solution: A combined mother and child shared fixture, characterized in that it includes a mother plate installed on a CNC machine and a child plate for positioning and clamping workpieces. The mother plate includes a base plate and a support bearing installed on the base plate. The support bearing has a wave-shaped top block. The top surface of the wave-shaped top block has an uneven and wavy surface. The mother plate also includes an outer shell and a top cover plate connected to each other. The child plate includes a clamping pad and a self-centering vise for clamping workpieces. The top cover plate and the clamping pad are engaged by a prismatic positioning pin. The outer shell is provided with a locking slider that moves up and down along its inner wall. The locking slider is provided with a slider core that drives its movement up and down. The slider core is provided with a locking rod and several balls for limiting the locking rod. There is an active area between the locking slider and the top cover plate, and a spring is provided between the locking slider and the top cover plate.

[0005] In the aforementioned shared clamp that combines mother and child parts, the top of the locking rod passes through the upper cover plate and extends into the self-centering vise, and the bottom of the self-centering vise is provided with a top groove for the locking rod to be pushed in.

[0006] In the aforementioned shared clamp that combines mother and child components, the slider core is provided with a bearing screw that abuts against the locking slider.

[0007] In the aforementioned shared clamp that combines mother and child parts, a groove is provided on the outer shell, and a handle rod that moves along the groove is connected to the wave-shaped top block, and the handle rod is used to drive the wave-shaped top block to deflect.

[0008] In the aforementioned shared clamp that combines mother and child components, a guide post and guide sleeve assembly is provided between the upper cover plate and the outer shell.

[0009] In the aforementioned shared clamp that combines mother and child parts, the locking rod is provided with an inner diameter groove for the ball bearings to engage.

[0010] Compared with existing technologies, this integrated master-daughter shared fixture offers the advantages of rapid workpiece clamping and disassembly, improving work efficiency and reducing mold clamping time from an average of 10 minutes per cycle to approximately 30 seconds per cycle. Multi-process single-clamping and alignment optimization processes reduce downtime by 90%, significantly minimizing wasted time in production, achieving high production efficiency, and increasing industry profits. Attached Figure Description

[0011] Figure 1 This is a three-dimensional cross-sectional view of the mother-child integrated shared fixture.

[0012] Figure 2 This is a 3D diagram of the mother-child integrated shared fixture.

[0013] In the diagram, 1. Base plate; 2. Support bearing; 3. Wave top block; 4. Wave surface; 5. Outer shell; 6. Top cover plate; 7. Fixture pad; 8. Self-centering vise; 9. Prism locating pin; 10. Locking slider; 11. Slider core; 12. Locking rod; 13. Ball bearing; 14. Spring; 15. Top groove; 16. Bearing screw; 17. Groove; 18. Handle rod; 19. Guide post and guide sleeve assembly; 20. Inner diameter groove. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 , Figure 2 As shown, this combined master and slave shared fixture includes a master plate installed on a CNC machine and a slave plate for positioning and clamping workpieces. The master plate includes a base plate 1 and a support bearing 2 installed on the base plate 1. The support bearing 2 has a wave-shaped top block 3. The top surface of the wave-shaped top block 3 has an uneven and wave-shaped wave surface 4. The master plate also includes an outer shell 5 and an upper cover plate 6 connected to each other. The slave plate includes a clamping pad 7 and a self-centering vise 8 for clamping workpieces. The upper cover plate 6 and the clamping pad 7 are engaged by a prismatic positioning pin 9. The outer shell 5 is provided with a locking slider 10 that moves up and down along its inner wall. The locking slider 10 is provided with a slider core 11 that drives it to move up and down. The slider core 11 is provided with a locking rod 12 and several balls 13 for limiting the locking rod 12. There is an active area between the locking slider 10 and the upper cover plate 6, and a spring 14 is provided between the locking slider 10 and the upper cover plate 6.

[0016] Preferably, the top of the locking rod 12 passes through the upper cover plate 6 and extends into the self-centering vise 8. The bottom of the self-centering vise 8 is provided with a top groove 15 for the locking rod 12 to be pushed in. The slider core 11 is provided with a bearing screw 16 that abuts against the locking slider 10. A groove 17 is provided on the outer shell 5. A handle rod 18 that moves along the groove 17 is connected to the wave top block 3, and the handle rod 18 is used to drive the wave top block 3 to deflect. A guide post and guide sleeve assembly 19 is provided between the upper cover plate 6 and the outer shell 5. The locking rod 12 is provided with an inner diameter groove 20 for the ball bearing 13 to fit.

[0017] The master plate is fixed to the existing operating equipment and kept stationary. The parts to be processed are then pre-installed on the slave plate. By adopting this structure, the slave plate can be quickly clamped and replaced on the master plate, thereby effectively reducing clamping time.

[0018] When the handle is turned counterclockwise by 1860°, the wave block 3 rotates synchronously. The height difference of the wave block 3 causes the locking slider 10 to move smoothly upward, and the spring 14 is compressed. At this time, the inner hole size in contact with the ball 13 increases, and the ball 13 spreads outward and disengages from the locking rod 12. The locking rod 12, together with the clamping pad 7 and the self-centering vise 8, can be easily removed.

[0019] Place the locking rod 12, along with the clamping pad 7 and the self-centering vise 8, into the base body. At this point, the base is not locked. Rotate the handle rod 1860 degrees clockwise, causing the wave-shaped top block 3 to rotate synchronously, thus smoothly moving the locking slider 10 downwards. At this time, the inner hole size in contact with the ball 13 gradually decreases. Under the pressure of the spring 14, the inner hole wall squeezes the ball 13, causing it to shrink towards the center until it locks with the locking rod 12. This completes the installation and locking of the self-centering vise 8.

[0020] The system features spring 14 and a self-locking function, eliminating the need for a continuous pressure source connection. When the pressure source is cut off, the module is permanently locked, ensuring safe and reliable workpiece clamping. It can be widely used in four-axis, five-axis, and horizontal machining environments. Whether using pallets, fixtures, vises, or workpieces, this system allows for extremely rapid changeovers with a defined zero point and a repeatability accuracy of ≤0.005mm.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document frequently uses terms such as base plate 1, support bearing 2, corrugated top block 3, corrugated surface 4, outer shell 5, top cover plate 6, clamp pad 7, self-centering vise 8, rhomboid positioning pin 9, locking slider 10, slider core 11, locking rod 12, ball bearing 13, spring 14, top groove 15, bearing screw 16, groove body 17, handle rod 18, guide post and guide sleeve assembly 19, and inner diameter groove 20, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A mother-child combined shared clamp, characterized in that, The system includes a master plate installed on a CNC machine and a slave plate for workpiece positioning and clamping. The master plate includes a base plate (1) and a support bearing (2) mounted on the base plate (1). The support bearing (2) has a wave-shaped top block (3). The top surface of the wave-shaped top block (3) has an uneven and wavy surface (4). The master plate also includes an interconnected outer shell (5) and an upper cover plate (6). The slave plate includes a clamping pad (7) and a self-centering vise (8) for clamping the workpiece. The upper cover plate (6) and The clamping pads (7) are engaged by a prismatic positioning pin (9). The outer shell (5) is provided with a locking slider (10) that moves up and down along its inner wall. The locking slider (10) is provided with a slider core (11) that drives it to move up and down. The slider core (11) is provided with a locking rod (12) and several balls (13) for limiting the locking rod (12). The locking slider (10) and the upper cover plate (6) have an active area and a spring (14) is provided between the locking slider (10) and the upper cover plate (6).

2. The mother-daughter combined shared clamp according to claim 1, characterized in that, The top of the locking rod (12) passes through the upper cover plate (6) and extends into the self-centering vise (8). The bottom of the self-centering vise (8) is provided with a top groove (15) for the locking rod (12) to be pushed in.

3. The mother-daughter combined shared clamp according to claim 1, characterized in that, The slider core (11) is provided with a bearing screw (16) that abuts against the locking slider (10).

4. A mother-daughter combined shared clamp according to claim 1, characterized in that, The outer shell (5) has a groove (17) and the wave top block (3) is connected to a handle rod (18) that moves along the groove (17), and the handle rod (18) is used to drive the wave top block (3) to deflect.

5. A mother-daughter combined shared clamp according to claim 1, characterized in that, A guide post and guide sleeve assembly (19) is provided between the upper cover plate (6) and the outer shell (5).

6. A mother-daughter combined shared clamp according to claim 1, characterized in that, The locking rod (12) is provided with an inner diameter groove (20) for the ball (13) to fit.