Vacuum chuck of CNC machining center

By introducing a dual-threaded screw and a dual-axis motor-driven positioning adjustment component into the vacuum chuck of a CNC machining center, the problem of the inflexible adjustment of the positioning hole of the existing vacuum chuck has been solved, enabling flexible positioning and efficient processing of different materials.

CN223834038UActive Publication Date: 2026-01-27YANCHENG DAFENG HUATENG PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202520890548.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-01-27
Estimated Expiration
2035-05-08

AI Technical Summary

Technical Problem

Existing vacuum chucks cannot flexibly adjust the positioning hole design, resulting in cumbersome programming and difficulty in adapting to the processing needs of different materials.

Method used

A vacuum chuck for CNC machining centers was designed, employing a positioning and adjustment assembly driven by a double-threaded screw and a dual-axis motor, combined with an L-shaped positioning block and scale lines, to achieve flexible adjustment and precise positioning of the positioning rod.

Benefits of technology

It improves the flexibility and accuracy of positioning, simplifies the programming process, and enhances processing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223834038U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of vacuum suction cups, and particularly relates to a vacuum suction cup of a CNC machining center. Comprising a vacuum chuck body, a plurality of positioning holes are evenly formed in the upper side face of the vacuum chuck body, and a positioning adjusting assembly is arranged on the vacuum chuck body. Through structural improvement and optimization, the positioning rod and the L-shaped positioning block can be flexibly controlled to move, the requirement for machining and using of materials of various models is met, the positioning process is simple, and the overall working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of vacuum chuck technology, specifically relating to a vacuum chuck for CNC machining centers. Background Technology

[0002] CNC, or numerical control machine tool, is a type of automated machine tool controlled by a computer program. CNC is primarily used for large-scale machining of parts and is suitable for mass production. During the machining process, CNC vacuum chucks are used to hold materials such as aluminum, copper, and plastic plates in place.

[0003] However, most current vacuum chucks, when loaded with materials such as aluminum, copper, and plastic plates to be processed, use positioning holes for positioning to ensure precision. Positioning rods are inserted into the two positioning holes, and one side of the material (aluminum, copper, or plastic plate) is placed against the positioning rods. This ensures the material is parallel to the vacuum chuck and provides better contact with the cutting head. However, the positioning holes are pre-designed and cannot be flexibly adjusted according to the material size, making programming cumbersome. To address these issues, a more flexible vacuum chuck for CNC machining centers is proposed. Utility Model Content

[0004] To address the problems existing in the background technology, this utility model provides a vacuum chuck for CNC machining centers; it allows for more flexible adjustment of the positioning device, resulting in greater efficiency during machining.

[0005] This utility model provides a vacuum chuck for a CNC machining center, comprising a vacuum chuck body. The upper side of the vacuum chuck body is evenly provided with several positioning holes. A positioning adjustment assembly is provided on the vacuum chuck body. The positioning adjustment assembly includes double-threaded screws symmetrically rotatably connected to both sides of the vacuum chuck body. A first moving block and a second moving block are symmetrically threaded onto the double-threaded screws. A positioning rod is fixedly installed between the first moving blocks. The positioning rod has a groove, and a strip-shaped through hole is provided corresponding to the groove. An L-shaped positioning block is slidably connected within the groove. A positioning knob is threaded onto the L-shaped positioning block. A dual-axis motor is fixedly installed on one side of the vacuum chuck body. A first bevel gear is fixedly installed on the output end of the dual-axis motor, and a second bevel gear is fixedly installed on the double-threaded screws. The first and second bevel gears mesh with each other. A control button is provided on the vacuum chuck body, and the control button is electrically connected to the dual-axis motor.

[0006] Furthermore, an auxiliary positioning rod is inserted and connected between the two movable blocks, and the auxiliary positioning rod is magnetically connected to the two movable blocks.

[0007] Furthermore, a gap is left between the positioning rod and the auxiliary positioning rod and the upper side of the vacuum suction cup body.

[0008] Furthermore, the upper side of the vacuum suction cup body is symmetrically provided with scale lines.

[0009] Furthermore, the positioning rod is provided with anti-slip textures symmetrically corresponding to the grooves.

[0010] Furthermore, the L-shaped positioning block is slidably connected to the strip-shaped through hole.

[0011] Furthermore, a protective cover is fixedly installed on the body of the vacuum suction cup corresponding to the control buttons.

[0012] The beneficial effects of this utility model are:

[0013] Through structural improvements and optimizations, this utility model enables flexible control of the positioning rod and L-shaped positioning block to move, meeting the processing needs of various types of materials. The positioning process is also relatively simple, improving overall work efficiency. Attached Figure Description

[0014] Figure 1 This is a top perspective view of a vacuum chuck for a CNC machining center according to this utility model.

[0015] Figure 2 This is a bottom-view perspective view of a vacuum chuck for a CNC machining center according to this utility model.

[0016] Figure 3 This is a schematic diagram of a dual-axis motor and a dual-threaded screw for a vacuum chuck in a CNC machining center according to this utility model.

[0017] Figure 4 This is a schematic diagram of area A of the vacuum chuck of a CNC machining center according to the present invention.

[0018] Figure 5 This is a schematic diagram of the positioning rod of a vacuum chuck in a CNC machining center according to the present invention.

[0019] Figure 6 This is a schematic diagram of region B of the vacuum chuck of a CNC machining center according to the present invention.

[0020] Figure 7 This is a schematic diagram of an auxiliary positioning rod for a vacuum chuck in a CNC machining center according to the present invention.

[0021] Figure 8 This is a schematic diagram of region C of a vacuum chuck in a CNC machining center according to the present invention.

[0022] As shown in the figure:

[0023] 1. Vacuum suction cup body; 2. Positioning hole; 3. Double threaded screw; 4. Moving block one; 5. Moving block two; 6. Positioning rod; 7. Groove; 8. Strip-shaped through hole; 9. L-shaped positioning block; 10. Positioning knob; 11. Dual-axis motor; 12. Bevel gear one; 13. Bevel gear two; 14. Control button; 15. Auxiliary positioning rod; 16. Scale line; 17. Anti-slip texture; 18. Protective cover. 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] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please refer to the accompanying diagrams in all instruction manuals:

[0027] A vacuum chuck for a CNC machining center includes a vacuum chuck body 1, a plurality of positioning holes 2 are evenly provided on the upper side of the vacuum chuck body 1, and a positioning adjustment component is provided on the vacuum chuck body 1.

[0028] The positioning adjustment assembly includes a double-threaded screw 3 located on both sides of the vacuum suction cup body 1 in a symmetrical rotational connection. The double-threaded screw 3 is symmetrically threaded with a first moving block 4 and a second moving block 5. A positioning rod 6 is fixedly installed between the first moving blocks 4. The positioning rod 6 is provided with a groove 7. The positioning rod 6 is provided with a strip-shaped through hole 8 corresponding to the groove 7. An L-shaped positioning block 9 is slidably connected in the groove 7. A positioning knob 10 is threadedly connected to the L-shaped positioning block 9. A dual-axis motor 11 is fixedly installed on one side of the vacuum suction cup body 1. A bevel gear 12 is fixedly installed on the output end of the dual-axis motor 11. A bevel gear 23 is fixedly installed on the double-threaded screw 3. The bevel gear 12 and the bevel gear 23 mesh with each other. A control button 14 is provided on the vacuum suction cup body 1. The control button 14 is electrically connected to the dual-axis motor 11.

[0029] As described above, by controlling button 14, the dual-axis motor 11 is controlled to work, causing bevel gear 12 and bevel gear 2 to rotate, which in turn drives the double threaded screw 3 to rotate, causing moving block 1 4 and moving block 2 5 to move in the same direction, which in turn drives the positioning rod 6 to move. After moving to the designated position, the power of the vacuum chuck body 1 is turned on, the material is adsorbed on the surface of the vacuum chuck body 1, and then the positioning rod 6 is moved to facilitate lathe processing.

[0030] As a technical optimization of this utility model, an auxiliary positioning rod 15 is inserted between the two movable blocks 5, and the auxiliary positioning rod 15 is magnetically connected to the two movable blocks 5.

[0031] As can be seen from the above description, the auxiliary positioning rod 15 is used when needed. Normally, it can be separated from the moving block 2 5, leaving only the positioning rod 6 for use. When synchronous clamping and positioning from both sides is required, the auxiliary positioning rod 15 and the moving block 2 5 are then snapped together. The magnetic attraction between them can also ensure the stability of the connection.

[0032] As a technical optimization of this utility model, a gap is left between the positioning rod 6 and the auxiliary positioning rod 15 and the upper side of the vacuum suction cup body 1.

[0033] As can be seen from the above description, the gap left allows the vacuum suction cup body 1 to prevent the positioning rod 6 and the auxiliary positioning rod 15 from being attracted. When the material is fixed on the vacuum suction cup body 1, the positioning rod 6 or the auxiliary positioning rod 15 will not be fixed after the material is attracted by vacuum.

[0034] As a technical optimization of this utility model, the upper side of the vacuum suction cup body 1 is symmetrically provided with scale lines 16;

[0035] As can be seen from the above description, the scale line 16 can provide workers with accurate data and improve the accuracy of fixed positions.

[0036] As a technical optimization of this utility model, anti-slip textures 17 are symmetrically provided on the positioning rod 6 corresponding to the groove 7;

[0037] As can be seen from the above description, the anti-slip texture 17 can effectively improve the friction between the positioning knob 10 and the positioning rod 6, resulting in better overall stability.

[0038] As a technical optimization of this utility model, the L-shaped positioning block 9 is slidably connected to the strip-shaped through hole 8;

[0039] As can be seen from the above description, the sliding connection method can improve the movement stability of the L-shaped positioning block 9.

[0040] As a technical optimization of this utility model, a protective cover 18 is fixedly installed on the outside of the vacuum suction cup body 1 corresponding to the control button 14.

[0041] As can be seen from the above description, the protective cover 18 can reduce most of the impact of the liquid used for cutting on the control button 14, and protect the stable operation of the internal circuit.

[0042] The working process of this utility model is as follows:

[0043] The worker controls the dual-axis motor 11 via control button 14, causing bevel gear 12 and bevel gear 2 to rotate, which in turn rotates the double threaded screw 3, causing moving block 1 4 and moving block 2 5 to move in the same direction, thus moving the positioning rod 6. After moving to the designated position, the L-shaped positioning block 9 is moved to the specified position and then tightened by the positioning knob 10. The two corners of the material are aligned with the L-shaped positioning block 9 and placed. The power of the vacuum chuck body 1 is turned on, and the material is adsorbed onto the surface of the vacuum chuck body 1. The positioning rod 6 is then moved to facilitate processing on the lathe.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A vacuum chuck for a CNC machining center, comprising a vacuum chuck body, characterized in that: The upper side of the vacuum suction cup body is evenly provided with several positioning holes, and the vacuum suction cup body is provided with a positioning adjustment component. The positioning adjustment component includes a double-threaded screw located on both sides of the vacuum suction cup body in a symmetrical rotational connection. A moving block one and a moving block two are symmetrically threaded on the double-threaded screw. A positioning rod is fixedly installed between the moving blocks one. The positioning rod is provided with a groove. The positioning rod is provided with a strip-shaped through hole corresponding to the groove. An L-shaped positioning block is slidably connected in the groove. A positioning knob is threadedly connected to the L-shaped positioning block. A dual-axis motor is fixedly installed on one side of the vacuum suction cup body. A bevel gear one is fixedly installed on the output end of the dual-axis motor. A bevel gear two is fixedly installed on the double-threaded screw. The bevel gear one and bevel gear two mesh with each other. A control button is provided on the vacuum suction cup body. The control button is electrically connected to the dual-axis motor.

2. The vacuum chuck for a CNC machining center according to claim 1, characterized in that: An auxiliary positioning rod is inserted between the two movable blocks, and the auxiliary positioning rod is magnetically connected to the two movable blocks.

3. The vacuum chuck for a CNC machining center according to claim 2, characterized in that: The positioning rod and the auxiliary positioning rod have a gap with the upper side of the vacuum suction cup body.

4. The vacuum chuck for a CNC machining center according to claim 1, characterized in that: The upper side of the vacuum suction cup body is symmetrically provided with scale lines.

5. The vacuum chuck for a CNC machining center according to claim 1, characterized in that: The positioning rod has symmetrical anti-slip textures corresponding to the grooves.

6. The vacuum chuck for a CNC machining center according to claim 1, characterized in that: The L-shaped positioning block is slidably connected to the strip-shaped through hole.

7. A vacuum chuck for a CNC machining center according to claim 1, characterized in that: The vacuum suction cup body is fixedly covered with a protective cover corresponding to the control buttons.