Quick tool changing claw structure of numerical control machine tool

By designing a quick-change chuck structure for the gripper assembly and movable assembly, the problem of position adjustment affecting efficiency during CNC machine tool tool changing was solved, enabling quick replacement and positioning of the cutting head and improving machining efficiency.

CN224294729UActive Publication Date: 2026-05-29YANGZHOU XURUIDE SHEET METAL MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU XURUIDE SHEET METAL MACHINERY CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

During the tool changing process of existing CNC machine tools, the conventional tool changing chuck structure requires adjustment of the overall position of the device, which affects work efficiency and pace.

Method used

A quick-change chuck structure is designed, comprising a gripper assembly and a movable assembly. The gripper assembly is used to quickly clamp the cutting head, and the movable assembly is used to adjust the position of the cutting head to adapt to the position of the CNC machine tool when clamping the part.

Benefits of technology

It enables rapid replacement and positioning of cutting heads, improving the machining efficiency and functionality of CNC machine tools and reducing production cycle imbalance caused by slow tool changing speed.

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Abstract

The utility model provides a quick tool changing clamping jaw structure of numerical control machine tool tool, include: X axle moving plate, the top of X axle moving plate is provided with the connecting plate, one side fixedly connected with the sliding block of connecting plate, the top fixedly connected with the connecting nail of sliding block, the surface of connecting plate is provided with Y axle rotating block, its characterized in that: the top one side fixedly connected with the clamping jaw subassembly of connecting plate, the inner wall of clamping jaw subassembly is provided with movable assembly, through clamping jaw subassembly can utilize self structure to the quick clamping and replacement of cutting tool head, to further improve the functionality of device, and movable assembly can utilize self structure to help direct adjustment cutting tool head's position to adapt to the position of numerical control machine tool clamping part while using clamping jaw subassembly to fix cutting tool head, and relatively fast clamping positioning is carried out.
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Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, specifically relating to a quick tool change chuck structure for CNC machine tool cutting tools. Background Technology

[0002] A CNC machine tool is an automated machining equipment controlled by a computer program, capable of precisely completing machining tasks such as cutting, drilling, milling, and grinding of complex parts according to pre-programmed instructions. Its core consists of a computer control system, a servo drive system, actuators (such as the spindle and tool magazine), and detection and feedback devices. It achieves precise control of machining parameters (such as speed, position, and feed rate) through digital codes (G-code or M-code). CNC machine tools are widely used in machinery manufacturing, the automotive industry, aerospace, mold production, and other fields, offering advantages such as high machining accuracy, high efficiency, strong consistency, and good flexibility. They are particularly suitable for mass production or machining complex, irregularly shaped parts.

[0003] In batch processing or automated production lines, rapid tool change is key to maintaining continuous and efficient operation and avoiding production cycle imbalance caused by slow tool change speed. Therefore, CNC machine tools are usually equipped with a rapid tool change chuck structure. However, after conventional tool change, the overall position of the device needs to be adjusted to adapt to the position of the part due to size issues, which affects work efficiency and rhythm. To address this, we propose a rapid tool change chuck structure for CNC machine tools. Utility Model Content

[0004] This utility model aims to address the shortcomings of the prior art by providing a quick tool change chuck structure for CNC machine tool cutting tools, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change chuck structure for CNC machine tool cutting tools includes: an X-axis moving plate, a connecting plate on the top of the X-axis moving plate, a sliding block fixedly connected to one side of the connecting plate, a connecting pin fixedly connected to the top of the sliding block, and a Y-axis rotating block on the surface of the connecting plate. The characteristic feature is that a chuck assembly is fixedly connected to one side of the top of the connecting plate, and a movable component is provided on the inner wall of the chuck assembly.

[0007] Preferably, the gripper assembly includes a fixed base plate, a support limiting block, a gripping top plate, a reinforcing nail, a rotation adjustment block, a push threaded column, and an auxiliary handle. The fixed base plate is fixedly connected to the top side of the connecting plate, and the support limiting block is fixedly connected to the top of the fixed base plate.

[0008] Preferably, the push threaded post is disposed on the inner wall of the support limiting block, the clamping top plate is disposed on the top of the push threaded post, the reinforcing nail is disposed on the top of the clamping top plate, the rotation adjustment block is disposed on the top of the push threaded post, the thread of the push threaded post matches the inner wall of the rotation adjustment block, and the auxiliary handle is fixedly connected to one side of the rotation adjustment block.

[0009] Preferably, the movable component includes a movable groove, an adjusting lead screw, a lead screw slider, an adjusting gear, a rotating handle, a transmission track, a cutting head, and a mounting slot. The movable groove is formed on one side of the fixed base plate and the clamping top plate. The adjusting lead screw is disposed on the inner wall of the movable groove, and the lead screw slider is disposed on the surface of the adjusting lead screw.

[0010] Preferably, the adjusting gear is fixedly connected to the back of the adjusting screw, the rotating handle is fixedly connected to the back of the adjusting gear, and the transmission track is disposed on the surface of the plurality of adjusting gears.

[0011] Preferably, the cutting head is disposed between the lead screw and the slider, the mounting groove is formed at the bottom and top of the lead screw and the slider, the shape of the mounting groove matches the cutting head, and the rubber gasket is on the same side as the lead screw and the slider.

[0012] Preferably, rubber pads are fixedly connected to the top of one side of the fixed base plate and the bottom of one side of the clamping top plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The gripper assembly can quickly clamp and replace the cutting head using its own structure, thereby further improving the functionality of the device. The movable component can use its own structure to fix the cutting head using the gripper assembly, while helping to directly adjust the position of the cutting head to adapt to the position of the CNC machine tool clamping the parts, and perform clamping and positioning relatively quickly.

[0015] 2. The position adjustment of the cutting head is driven by the structure of the movable components. The movable groove provides sliding space for the movement of the lead screw and slider. The adjusting lead screw can be rotated when the user turns the handle, thereby driving the adjusting gear to rotate. This rotation, in conjunction with the corresponding gear inside the lead screw and slider, drives the movement of the entire lead screw and slider, which in turn drives the movement of the cutting head held by the mounting slot and the gripper assembly. This movement is used to adjust the position of the cutting head, thereby adapting to the position adjustment of the clamped parts and further improving the functionality of the device. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the back of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the gripper assembly in the structure of this utility model;

[0021] Figure 4 This is a disassembly diagram of the gripper assembly in the structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the back of the movable component in the structure of this utility model.

[0023] In the diagram: 1. X-axis moving plate; 2. Connecting plate; 3. Sliding block; 4. Connecting pin; 5. Y-axis rotating block; 6. Gripper assembly; 601. Fixed base plate; 602. Support limiting block; 603. Clamping top plate; 604. Reinforcing pin; 605. Rotation adjustment block; 606. Push threaded column; 607. Auxiliary handle; 7. Movable assembly; 701. Movable groove; 702. Adjusting screw; 703. Screw slider; 704. Adjusting gear; 705. Rotating handle; 706. Transmission track; 707. Cutting head; 708. Mounting slot; 8. Rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figure 1-5 The technical solution provided in this embodiment is as follows:

[0027] A quick-change tool changer structure for CNC machine tool tools includes: an X-axis moving plate 1, a connecting plate 2 on the top of the X-axis moving plate 1, a sliding block 3 fixedly connected to one side of the connecting plate 2, a connecting pin 4 fixedly connected to the top of the sliding block 3, and a Y-axis rotating block 5 on the surface of the connecting plate 2. The characteristic feature is that: a gripper assembly 6 is fixedly connected to one side of the top of the connecting plate 2, a movable component 7 is provided on the inner wall of the gripper assembly 6, and rubber pads 8 are fixedly connected to the top of one side of the fixed base plate 601 and the bottom of one side of the clamping top plate 603. The rubber pads 8 and the lead screw slider 703 are on the same plane.

[0028] In this embodiment, the X-axis moving plate 1 and the Y-axis rotating block 5 adjust the position of the entire device on the CNC machine tool. This type of adjustment is a well-known structure in the art and will not be described in detail here. The connecting plate 2 can help connect the gripper assembly 6 to the position of the X-axis moving plate 1. At the same time, the sliding block 3 and the connecting pin 4 can use their own structure to help provide a sliding basis for sliding adjustment. The gripper assembly 6 can use its own structure to quickly clamp and fix the cutting head 707, as well as disassemble it. At the same time, the movable component 7 helps to adjust the position of the cutting head 707 to adapt to the position of the workpiece being clamped by the CNC machine tool. There is no need to adjust the whole device, making it faster and more convenient to use. The rubber pad 8 and the internal structure of the movable component 7 are on the same plane. The material elasticity and contact area can be used to further improve the clamping effect of the device.

[0029] The gripper assembly 6 includes a fixed base plate 601, a support limiting block 602, a clamping top plate 603, a reinforcing nail 604, a rotation adjustment block 605, a push threaded column 606, and an auxiliary handle 607. The fixed base plate 601 is fixedly connected to the top side of the connecting plate 2, and the support limiting block 602 is fixedly connected to the top of the fixed base plate 601.

[0030] In this embodiment, the gripper assembly 6 is fixed to the top of the connecting plate 2 by the fixed base plate 601, and at the same time, it is combined with the support limiting block 602 to provide a solid base for the gripper assembly 6 to hold.

[0031] A threaded push post 606 is disposed on the inner wall of the support limiting block 602, a clamping top plate 603 is disposed on the top of the threaded push post 606, a reinforcing nail 604 is disposed on the top of the clamping top plate 603, a rotating adjusting block 605 is disposed on the top of the threaded push post 606, the thread of the threaded push post 606 matches the inner wall of the rotating adjusting block 605, and an auxiliary handle 607 is fixedly connected to one side of the rotating adjusting block 605.

[0032] In this embodiment, the threaded push column 606 uses its own threaded structure to support the clamping top plate 603 at the top, and at the same time it is combined with the inner wall of the rotating adjustment block 605. When the rotating adjustment block 605 is rotated by the auxiliary handle 607, it will continuously help the clamping top plate 603 to press down and clamp on the surface of the threaded push column 606. This structure is used to complete the quick clamping, disassembly and installation of the cutting head 707 by the whole device.

[0033] The movable component 7 includes a movable groove 701, an adjusting screw 702, a screw slider 703, an adjusting gear 704, a rotating handle 705, a transmission track 706, a cutting head 707, and a mounting slot 708. The movable groove 701 is located on one side of the fixed base plate 601 and the clamping top plate 603. The adjusting screw 702 is located on the inner wall of the movable groove 701, and the screw slider 703 is located on the surface of the adjusting screw 702.

[0034] In this embodiment, the movable component 7 can use the movable groove 701 to provide the range of motion for the movement of the lead screw slider 703. At the same time, the surface thread of the adjusting lead screw 702 is matched with the internal gear of the lead screw slider 703, so that the surface of the lead screw slider 703 can be effectively moved when the adjusting lead screw 702 rotates.

[0035] Adjusting gear 704 is fixedly connected to the back of adjusting screw 702, rotating handle 705 is fixedly connected to the back of adjusting gear 704, and transmission track 706 is disposed on the surface of multiple adjusting gears 704.

[0036] In this embodiment, the adjusting gear 704 is fixed to the back of the adjusting screw 702. The rotating handle 705 provides a point of leverage for the user to rotate the adjusting gear 704. Simultaneously, the adjusting gears 704 are connected by a transmission belt 706. The interlocking action between the rack on the inner wall of the transmission belt 706 and the adjusting gear 704 effectively helps the user to adjust the simultaneous movement of the upper and lower screw sliders 703 by rotating one adjusting gear 704 using the rotating handle 705, thereby further improving the functionality of the device.

[0037] The cutting head 707 is disposed between the lead screw and the slider 703, and the mounting groove 708 is formed at the bottom and top of the lead screw and slider 703. The shape of the mounting groove 708 matches the cutting head 707.

[0038] In this embodiment, the cutting head 707 is clamped between multiple lead screw sliders 703 using the structure of the gripper assembly 6. Since the overall position of the lead screw slider 703 is larger than that of the clamping top plate 603 and the fixed bottom plate 601, and the mounting slot 708 matches the locking block on the surface of the cutting head 707, the lead screw slider 703 can more effectively clamp the cutting head 707, further improving the clamping effect and stability of the device, while also facilitating quick installation and disassembly.

[0039] Working principle: The equipment uses the X-axis moving plate 1 and the Y-axis rotating block 5 to help adjust the overall position of the device. This adjustment is a structure well known to those skilled in the art and will not be described in detail here. The connecting plate 2, the sliding block 3, and the connecting pin 4 help to set the gripper assembly 6 on the X-axis moving plate 1. At the same time, the gripper assembly 6 can use its own structure to quickly clamp and replace the cutting head 707, thereby further improving the functionality of the device. The movable component 7 can use its own structure to fix the cutting head 707 with the gripper assembly 6, while helping to directly adjust the position of the cutting head 707 to adapt to the position of the CNC machine tool clamping the parts, and perform clamping and positioning relatively quickly, thereby further improving the functionality and safety of the device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change chuck structure for CNC machine tool cutting tools, comprising an X-axis moving plate (1), a connecting plate (2) provided on the top of the X-axis moving plate (1), a sliding block (3) fixedly connected to one side of the connecting plate (2), a connecting pin (4) fixedly connected to the top of the sliding block (3), and a Y-axis rotating block (5) provided on the surface of the connecting plate (2), characterized in that: A gripper assembly (6) is fixedly connected to one side of the top of the connecting plate (2), and a movable component (7) is provided on the inner wall of the gripper assembly (6).

2. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 1, characterized in that: The gripper assembly (6) includes a fixed base plate (601), a support limiting block (602), a clamping top plate (603), a reinforcing nail (604), a rotation adjustment block (605), a push threaded column (606), and an auxiliary grip (607). The fixed base plate (601) is fixedly connected to the top side of the connecting plate (2), and the support limiting block (602) is fixedly connected to the top of the fixed base plate (601).

3. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 2, characterized in that: The push threaded post (606) is disposed on the inner wall of the support limiting block (602), the clamping top plate (603) is disposed on the top of the push threaded post (606), the reinforcing nail (604) is disposed on the top of the clamping top plate (603), the rotating adjustment block (605) is disposed on the top of the push threaded post (606), the thread of the push threaded post (606) matches the inner wall of the rotating adjustment block (605), and the auxiliary grip (607) is fixedly connected to one side of the rotating adjustment block (605).

4. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 3, characterized in that: The movable component (7) includes a movable groove (701), an adjusting screw (702), a screw slider (703), an adjusting gear (704), a rotating handle (705), a transmission track (706), a cutting head (707), and a mounting slot (708). The movable groove (701) is located on one side of the fixed base plate (601) and the clamping top plate (603). The adjusting screw (702) is located on the inner wall of the movable groove (701), and the screw slider (703) is located on the surface of the adjusting screw (702).

5. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 4, characterized in that: The adjusting gear (704) is fixedly connected to the back of the adjusting screw (702), the rotating handle (705) is fixedly connected to the back of the adjusting gear (704), and the transmission track (706) is disposed on the surface of the plurality of adjusting gears (704).

6. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 5, characterized in that: The cutting head (707) is disposed between the lead screw and slider (703), and the mounting groove (708) is formed at the bottom and top of the lead screw and slider (703). The shape of the mounting groove (708) matches the cutting head (707).

7. The quick-change chuck structure for CNC machine tool cutting tools as described in claim 6, characterized in that: Rubber pads (8) are fixedly connected to the top side of the fixed base plate (601) and the bottom side of the clamping top plate (603), and the rubber pads (8) are on the same side as the lead screw slider (703).