Numerical control machining clamp device convenient to replace

By introducing clamping drive, docking, and mounting mechanisms into the CNC machining fixture device, the clamping blocks can be quickly replaced, solving the problem of difficult replacement in the prior art and improving machining efficiency and equipment utilization.

CN224169282UActive Publication Date: 2026-04-28NANTONG INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG INST OF TECH
Filing Date
2025-04-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing CNC machining fixtures are not convenient for quick disassembly and replacement of clamping blocks, resulting in low machining efficiency and long machine tool downtime.

Method used

It adopts a combination design of clamping drive mechanism, docking mechanism and installation mechanism. The motor drives the bidirectional threaded rod to drive the slide block to slide. With the help of button unlocking and block locking, the clamping block can be quickly installed and removed.

Benefits of technology

It shortens the clamping and adjustment time, reduces machine tool downtime, improves equipment utilization, and enhances processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of numerical control clamps, in particular to a numerical control machining clamp device convenient to replace, which comprises a base, a sliding rail is mounted on the base, a fixing plate is fixedly mounted on the side wall of the base, and clamping blocks are symmetrically arranged on the sliding rail in a sliding manner. A clamping driving mechanism used for driving the clamping blocks to move is arranged in the sliding rail, and the clamping blocks and the clamping driving mechanism are installed through a butt joint mechanism and an installation mechanism. The butt-joint mechanism is matched with the mounting mechanism, so that the clamping block can be quickly disassembled and replaced, unlocking can be achieved only by pressing a button, if replacement and mounting are needed, a butt-joint block on the clamping block is inserted into a sliding seat to enable a clamping block to be matched with a butt-joint groove to achieve mounting, the clamping adjustment time is shortened, the machine tool shutdown time is shortened, and the machining efficiency is improved. And the clamping adjustment time is shortened, the machine tool shutdown time is shortened, and the equipment utilization rate is improved.
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Description

Technical Field

[0001] This utility model relates to the field of CNC fixture technology, specifically to a CNC machining fixture device that is easy to replace. Background Technology

[0002] CNC machining fixtures are process equipment used to clamp workpieces in CNC machine tools. Their core function is to ensure that the workpiece maintains the correct position and posture relative to the machine tool and cutting tool during the machining process.

[0003] When processing workpieces of different shapes or sizes, the original clamping blocks may not be able to provide effective positioning or clamping, and need to be replaced with suitable clamping blocks. However, existing equipment does not facilitate the quick disassembly and replacement of the original clamping blocks, which does not improve work efficiency.

[0004] Based on this, a CNC machining fixture device that is easy to replace is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] To address the aforementioned issues, a CNC machining fixture device that is easy to replace is provided, which solves the problem of inconvenient replacement of clamping blocks through the installation mechanism.

[0006] To address the problems of existing technologies, this utility model provides a CNC machining fixture device that is easy to replace, including a base, a slide rail mounted on the base, a fixing plate fixedly mounted on the side wall of the base, clamping blocks symmetrically slidably arranged on the slide rail, and a clamping drive mechanism for driving the clamping blocks to move between each other within the slide rail. The clamping blocks and the clamping drive mechanism are installed together through a docking mechanism and an installation mechanism.

[0007] Preferably, the clamping drive mechanism includes a motor, a bidirectional threaded rod, a slide block, and a limiting block. The motor is mounted on the fixed plate, and the output end of the motor is connected to the bidirectional threaded rod. The other end of the bidirectional threaded rod passes through the base and rotates with its inner wall. The slide block is symmetrically slidably mounted on the bidirectional threaded rod. The slide block is slidably mounted in the slide rail. The slide block has threads that mate with the bidirectional threaded rod. A docking mechanism and an installation mechanism are provided between the clamping block and the slide block.

[0008] Preferably, the docking mechanism includes a docking block and a docking groove, the bottom wall of the clamping block is provided with a docking block, and the docking block is provided with a docking groove.

[0009] Preferably, the installation mechanism includes an unlocking drive component and an unlocking component.

[0010] Preferably, the unlocking drive component includes a button, a push post, and a stop block. The push post is slidably disposed within the limiting block. A button is provided at the upper end of the push post, and a stop block is provided at the other end of the push post.

[0011] Preferably, the unlocking assembly includes a sliding frame, a connecting plate, a stop rod, a return spring, an unlocking rod, and a locking block. The sliding frame is slidably disposed within the limiting block. One end of the sliding frame near the stop block passes through the side wall of the connecting plate and connects to the stop rod. The stop rod slides and abuts against the stop block. The connecting plate is disposed within the limiting block. The two ends of the return spring are respectively connected to the side wall of the connecting plate and the inner wall of the limiting block. An unlocking rod is provided on the side wall of the sliding frame, and the locking block is connected to the side wall of the unlocking rod.

[0012] Preferably, the locking block engages with the docking slot.

[0013] The advantages of this utility model compared to the prior art are:

[0014] This utility model, by setting up a docking mechanism and an installation mechanism, facilitates the quick disassembly and replacement of the clamping block. It can be unlocked simply by pressing a button. If replacement or installation is required, the docking block on the clamping block is inserted into the slide so that the clamping block and the docking groove are engaged to achieve installation. This shortens the clamping and adjustment time, reduces machine tool downtime, and improves equipment utilization. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a CNC machining fixture device that is easy to replace. Figure 1 .

[0016] Figure 2 A three-dimensional structural diagram of a CNC machining fixture device that is easy to replace. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the internal structure of a CNC machining fixture device that is easy to replace.

[0018] Figure 4 It is an easily replaceable CNC machining fixture device. Figure 3 A magnified schematic diagram of part A in the diagram.

[0019] The diagram is labeled as follows: 101, base; 102, slide rail; 103, fixing plate; 104, clamping block; 200, clamping drive mechanism; 201, motor; 202, bidirectional threaded rod; 203, slide block; 204, limit block; 300, docking mechanism; 301, docking block; 302, docking groove; 400, mounting mechanism; 401, button; 402, push post; 403, push block; 404, sliding frame; 405, connecting plate; 406, push rod; 407, return spring; 408, unlocking rod; 409, locking block. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] Reference Figures 1-4 A replaceable CNC machining fixture device includes a base 101, a slide rail 102 mounted on the base 101, a fixing plate 103 fixedly mounted on the side wall of the base 101, clamping blocks 104 symmetrically slidably arranged on the slide rail 102, and a clamping drive mechanism 200 for driving the clamping blocks 104 to move between each other within the slide rail 102. The clamping blocks 104 and the clamping drive mechanism 200 are connected by a docking mechanism 300 and a mounting mechanism 400.

[0022] The docking mechanism 300 and the mounting mechanism 400 are used to facilitate the installation and disassembly of the clamping block 104, and the clamping drive mechanism 200 is used to drive the clamping block 104 to fix the workpiece to be processed, so as to facilitate the processing work.

[0023] Reference Figures 1-3 The clamping drive mechanism 200 includes a motor 201, a bidirectional threaded rod 202, a slide block 203, and a limiting block 204. The motor 201 is mounted on the fixing plate 103. The output end of the motor 201 is connected to the bidirectional threaded rod 202. The other end of the bidirectional threaded rod 202 passes through the base 101 and rotates with its inner wall. The slide block 203 is symmetrically slidably mounted on the bidirectional threaded rod 202. The slide block 203 is slidably mounted in the slide rail 102. The slide block 203 has threads that mate with the bidirectional threaded rod 202. A docking mechanism 300 and an installation mechanism 400 are provided between the clamping block 104 and the slide block 203.

[0024] The starter motor 201 drives the bidirectional threaded rod 202 to rotate. The bidirectional threaded rod 202 engages with the thread in the slide block 203 to enable the slide block 203 to slide back and forth within the slide rail 102. The slide block 203 can drive the clamping block 104 to move in opposite directions or in the opposite direction, thereby fixing and clamping the workpiece to be processed and preventing it from shifting during the processing.

[0025] Reference Figures 2-3 The docking mechanism 300 includes a docking block 301 and a docking groove 302. The bottom wall of the clamping block 104 is provided with the docking block 301 and the docking groove 302 is provided on the docking block 301.

[0026] Align the mating block 301 on the clamping block 104 with the slide block 203, which has a snap-fit ​​groove that mates with the mating block 301.

[0027] Reference Figures 2-3The installation mechanism 400 includes an unlocking drive component and an unlocking component.

[0028] The unlocking driver component and the unlocking component are used to quickly unlock and replace the already installed clamping block 104.

[0029] Reference Figures 2-4 The unlocking drive component includes a button 401, a push post 402, and a stop block 403. The push post 402 is slidably disposed within the limiting block 204. The upper end of the push post 402 is provided with a button 401, and the other end of the push post 402 is provided with a stop block 403.

[0030] Reference Figures 2-4 The unlocking assembly includes a sliding frame 404, a connecting plate 405, a stop rod 406, a return spring 407, an unlocking rod 408, and a locking block 409. The sliding frame 404 is slidably disposed within the limiting block 204. One end of the sliding frame 404 near the stop block 403 passes through the side wall of the connecting plate 405 and connects to the stop rod 406. The stop rod 406 slidably abuts against the stop block 403. The connecting plate 405 is disposed within the limiting block 204. The two ends of the return spring 407 are respectively connected to the side wall of the connecting plate 405 and the inner wall of the limiting block 204. The unlocking rod 408 is provided on the side wall of the sliding frame 404, and the locking block 409 is connected to the side wall of the unlocking rod 408.

[0031] Pressing button 401 causes the push column 402 and the block 403 to move downwards. The block 403 pushes the push rod 406 to move. The push rod 406 causes the sliding frame 404, the unlocking rod 408 and the locking block 409 to move away from the docking groove 302, thereby unlocking the locking block 409 from the docking groove 302. Removing the clamping block 104 completes the disassembly of the clamping block 104.

[0032] Align the mating block 301 on the clamping block 104 with the slide block 203. The slide block 203 is provided with a snap-fit ​​groove that cooperates with the mating block 301. When the mating block 301 encounters the snap-fit ​​block 409, it is forced to retract the snap-fit ​​block 409. When the snap-fit ​​block 409 encounters the mating groove 302, the return spring 407 drives the snap-fit ​​block 409 to reset and snap-fit ​​and fix the mating groove 302. This realizes the installation of the clamping block 104.

[0033] Reference Figures 1-4 The locking block 409 engages with the docking groove 302.

[0034] The locking block 409 is used to engage with the docking slot 302 to install the clamping block 104.

[0035] Working principle: The workpiece to be clamped is placed between the clamping blocks 104 above the slide rail 102. The motor 201 is started to drive the bidirectional threaded rod 202 to rotate. The bidirectional threaded rod 202 engages with the thread in the slide block 203, allowing the slide block 203 to slide back and forth within the slide rail 102. The slide block 203 can drive the clamping blocks 104 to move in opposite directions, thus fixing and clamping the workpiece to be processed and preventing displacement during processing. When it is necessary to replace the clamping blocks 104, pressing the button 401 moves the push column 402 and the abutment block 403 downward. The abutment block 403 pushes the abutment rod 406 to move, and the abutment rod 406 moves the sliding frame 404, the unlocking rod 408, and the locking block 409 away from the docking point. Moving the slot 302 unlocks the locking block 409 from the docking slot 302, and removing the clamping block 104 disassembles it. Aligning the docking block 301 on the clamping block 104 with the slide block 203, which has a locking groove that engages with the docking block 301, the clamping block 301 retracts when it encounters the locking block 409. When the locking block 409 encounters the docking slot 302, the return spring 407 resets the locking block 409 and locks it into place. This completes the installation of the clamping block 104, shortening the clamping and adjustment time, reducing machine downtime, and improving equipment utilization.

[0036] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A CNC machining fixture device that is easy to replace, characterized in that, The system includes a base (101), on which a slide rail (102) is mounted, and a fixing plate (103) is fixedly mounted on the side wall of the base (101). Clamping blocks (104) are symmetrically slidably arranged on the slide rail (102). A clamping drive mechanism (200) for driving the clamping blocks (104) to move between them is provided inside the slide rail (102). The clamping blocks (104) and the clamping drive mechanism (200) are installed together through a docking mechanism (300) and an installation mechanism (400).

2. The easily replaceable CNC machining fixture device according to claim 1, characterized in that, The clamping drive mechanism (200) includes a motor (201), a bidirectional threaded rod (202), a slide block (203), and a limiting block (204). The motor (201) is mounted on the fixing plate (103). The output end of the motor (201) is connected to the bidirectional threaded rod (202). The other end of the bidirectional threaded rod (202) passes through the base (101) and rotates with its inner wall. The slide block (203) is symmetrically slidably mounted on the bidirectional threaded rod (202). The slide block (203) is slidably mounted in the slide rail (102). The slide block (203) has a thread that mates with the bidirectional threaded rod (202). A docking mechanism (300) and an installation mechanism (400) are provided between the clamping block (104) and the slide block (203).

3. The easily replaceable CNC machining fixture device according to claim 2, characterized in that, The docking mechanism (300) includes a docking block (301) and a docking groove (302). The bottom wall of the clamping block (104) is provided with the docking block (301) and the docking groove (302) is provided on the docking block (301).

4. The easily replaceable CNC machining fixture device according to claim 2, characterized in that, The installation mechanism (400) includes an unlocking drive component and an unlocking component.

5. The easily replaceable CNC machining fixture device according to claim 4, characterized in that, The unlocking drive component includes a button (401), a push post (402), and a stop block (403). The push post (402) is slidably disposed within the limiting block (204). The upper end of the push post (402) is provided with a button (401), and the other end of the push post (402) is provided with a stop block (403).

6. The easily replaceable CNC machining fixture device according to claim 4, characterized in that, The unlocking assembly includes a sliding frame (404), a connecting plate (405), a stop rod (406), a return spring (407), an unlocking rod (408), and a locking block (409). The sliding frame (404) is slidably disposed within the limiting block (204). One end of the sliding frame (404) near the stop block (403) passes through the side wall of the connecting plate (405) and connects to the stop rod (406). The stop rod (406) slides and abuts against the stop block (403). The connecting plate (405) is disposed within the limiting block (204). The two ends of the return spring (407) are respectively connected to the side wall of the connecting plate (405) and the inner wall of the limiting block (204). The unlocking rod (408) is provided on the side wall of the sliding frame (404), and the locking block (409) is connected to the side wall of the unlocking rod (408).

7. The easily replaceable CNC machining fixture device according to claim 6, characterized in that, The locking block (409) engages with the docking groove (302).