Rapid recombination clamp structure for mechanical numerical control automatic machining

By combining the T-slot and T-slider design with adjustable positioning blocks and pneumatic clamping mechanism, the fixture can be quickly reassembled and accurately positioned, solving the problem of poor adaptability of traditional fixtures, improving production efficiency and reducing costs.

CN223997821UActive Publication Date: 2026-03-17DONGTAI HAOTIAN INTELLIGENT EQUIP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional fixtures are designed for specific workpieces, resulting in frequent replacements, cumbersome operation, and high costs, making it difficult to adapt to the processing needs of different workpieces.

Method used

The fixture employs a combination of T-slots and T-sliders, along with adjustable positioning blocks and a pneumatic clamping mechanism, to achieve rapid reconfiguration and precise positioning, adapting to various workpiece shapes and sizes.

Benefits of technology

It improves fixture replacement efficiency, reduces replacement costs, ensures machining accuracy and production efficiency, and reduces workpiece surface damage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223997821U_ABST
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Abstract

The utility model discloses a quick reassembly clamp structure for mechanical numerical control automatic processing, which comprises a base plate, a plurality of uniformly distributed T-shaped grooves are arranged on the upper surface of the base plate, and a back plate is arranged on the upper surface of the base plate. Through the cooperation of the T-shaped groove, the first T-shaped sliding block and the second T-shaped sliding block, the positioning block, the fixing base and other parts can be rapidly subjected to position adjustment and installation on the base plate, rapid recombination of the clamp structure is achieved, the time for replacing a clamp to adapt to clamping of different workpieces is greatly shortened, production efficiency is improved, and the production cost is reduced. And the positioning distance can be accurately adjusted through the adjusting screw rod and the positioning plate, and the position of the clamping mechanism can be adjusted according to the requirements of the workpieces, so that the clamp can adapt to the clamping requirements of the workpieces with different shapes and sizes, the universality is high, and the cost generated by customizing a special clamp by an enterprise is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, specifically relating to a rapid reconfiguration fixture structure for automated CNC machining. Background Technology

[0002] In the process of automated CNC machining, it is often necessary to clamp and fix workpieces of different shapes and sizes to ensure machining accuracy and efficiency.

[0003] Traditional fixtures are often special fixtures designed for specific workpieces. When different types of workpieces need to be processed, the entire fixture needs to be changed frequently. This is not only cumbersome and time-consuming, but also has a high manufacturing cost, which is not conducive to improving the company's production efficiency and controlling costs. Utility Model Content

[0004] To solve the above technical problems, the present invention provides a technical solution: a rapid reassembly fixture structure for automated CNC machining, comprising a base plate, wherein a plurality of uniformly distributed T-slots are formed on the upper surface of the base plate, and a back plate is provided on the upper surface of the base plate;

[0005] The positioning block has a T-shaped slider that matches the T-slot at its bottom. The positioning block is slidably connected to the T-slot via the T-shaped slider. An adjusting screw is provided on one side of the positioning block. The adjusting screw passes through the positioning block and is threadedly connected to the positioning block. A positioning plate is rotatably connected to the end of the adjusting screw.

[0006] A clamping mechanism includes a fixed base, a T-shaped slider that matches the T-slot at the bottom of the fixed base, a cylinder mounted on the fixed base, a clamping block connected to the piston rod end of the cylinder, and a rubber pad on the side of the clamping block that contacts the workpiece.

[0007] Through the above technical solution, this utility model, through the cooperation of T-slots, T-slider one, and T-slider two, enables the positioning block and fixed seat to be quickly positioned and installed on the base plate, realizing rapid reconfiguration of the fixture structure. This greatly shortens the time required to change fixtures to adapt to different workpiece clamping, improves production efficiency, and allows for flexible adjustment of the positioning block position. Furthermore, the positioning distance can be precisely adjusted by adjusting the screw and positioning plate. The position of the clamping mechanism can also be adjusted according to workpiece requirements, enabling the fixture to adapt to the clamping needs of various workpieces of different shapes and sizes. It has strong versatility, reduces the costs incurred by enterprises due to custom-made special fixtures, and the use of rubber pads avoids damage to the workpiece surface, which helps to ensure processing accuracy.

[0008] The present invention is further configured such that the T-grooves are evenly spaced on the substrate, and the length direction of the T-grooves is parallel to the edge of the substrate.

[0009] The present invention is further configured such that the positioning block is made of high-strength alloy steel, and the side of the positioning plate that contacts the workpiece is provided with an anti-slip pad.

[0010] The present invention is further configured such that the cylinder is an adjustable pressure pneumatic component, and the cylinder's output pressure is controlled by an external air source and a pressure regulating device.

[0011] The present invention is further configured such that the rubber pad is bonded to the clamping block with strong adhesive, the side surface of the clamping block is provided with a groove, and a button is provided inside the groove.

[0012] With the above technical solution, when the clamping block clamps the workpiece, it will press the button. After the button is pressed, the light will turn on. At this time, the controller will control the cylinder to stop to avoid over-clamping.

[0013] The present invention is further configured such that the fixed base is provided with a mounting hole for mounting the cylinder, and the cylinder is fixedly connected to the fixed base by a screw passing through the mounting hole.

[0014] The above technical solution allows the cylinder and the mounting base to be fixedly connected together using screws.

[0015] The present invention is further provided with a rotating ring at the end of the adjusting screw away from the positioning plate, and the surface of the rotating ring is provided with an anti-slip rubber sleeve.

[0016] With the above technical solution, when the rotating ring causes the screw to rotate, the anti-slip rubber sleeve can prevent slippage.

[0017] The present invention is further configured such that a lamp is fixedly connected to the side surface of the clamping block, and a controller is fixedly connected to the upper surface of the cylinder.

[0018] The present invention is further configured such that a fixing plate is fixedly connected to the side surface of the T-shaped slider II, and a bolt is threadedly connected to the upper surface of the fixing plate, and the side surface of the bolt is threadedly connected to the base plate.

[0019] The above technical solution allows the T-shaped slider to be fixed to the substrate using bolts.

[0020] The beneficial effects of this utility model are as follows:

[0021] The T-slot, T-slider one, and T-slider two work together to quickly adjust and install the positioning block and fixed seat on the base plate, enabling rapid reconfiguration of the fixture structure. This significantly reduces the time required to change fixtures to accommodate different workpieces, improving production efficiency. The position of the positioning block is flexibly adjustable, and the positioning distance can be precisely adjusted by adjusting the screw and positioning plate. The position of the clamping mechanism can also be adjusted according to workpiece requirements, allowing the fixture to adapt to various workpieces of different shapes and sizes. It is highly versatile, reducing the costs incurred by enterprises due to custom-made fixtures. The use of rubber pads avoids damage to the workpiece surface, helping to ensure machining accuracy. Attached Figure Description

[0022] Figure 1 This is a first-view structural diagram of a rapid reassembly fixture structure for automated CNC machining according to this utility model;

[0023] Figure 2 This is a partial structural diagram of a rapid reassembly fixture structure for automated CNC machining according to this utility model;

[0024] Figure 3 This is a partially exploded view of a rapid reassembly fixture structure for automated CNC machining according to this utility model.

[0025] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0026] Reference numerals in the attached diagram: 1. Base plate; 2. T-slot; 3. Positioning block; 4. T-slide one; 41. T-slide two; 5. Adjusting screw; 51. Rotary ring; 6. Positioning plate; 7. Fixing seat; 8. Cylinder; 9. Clamping block; 10. Rubber pad; 11. Groove; 12. Button; 13. Light; 14. Controller; 15. Fixing plate; 16. Bolt; 17. Back plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] like Figures 1-4 As shown, a rapid reassembly fixture structure for automated CNC machining in this embodiment includes a base plate 1. Several uniformly distributed T-slots 2 are formed on the upper surface of the base plate 1. The T-slots 2 are evenly spaced on the base plate 1, and the length direction of the T-slots 2 is parallel to the edge of the base plate 1. A back plate 17 is provided on the upper surface of the base plate 1.

[0029] The positioning block 3 has a T-shaped slider 4 at its bottom that matches the T-slot 2. The positioning block 3 is slidably connected to the T-slot 2 via the T-shaped slider 4. An adjusting screw 5 is provided on one side of the positioning block 3. The adjusting screw 5 passes through the positioning block 3 and is threadedly connected to the positioning block 3. A positioning plate 6 is rotatably connected to the end of the adjusting screw 5. The positioning block 3 is made of high-strength alloy steel. An anti-slip pad is provided on the side of the positioning plate 6 that contacts the workpiece.

[0030] The clamping mechanism includes a fixed base 7. The bottom of the fixed base 7 is provided with a T-shaped slider 41 that matches the T-slot 2. A cylinder 8 is installed on the fixed base 7. The cylinder 8 is a pneumatic component with adjustable pressure. The output pressure of the cylinder 8 is controlled by an external air source and a pressure regulating device. A clamping block 9 is connected to the piston rod end of the cylinder 8. A rubber pad (10) is provided on the side of the clamping block 9 that contacts the workpiece.

[0031] Through the cooperation of T-slot 2, T-slider 1 4 and T-slider 2 41, the positioning block 3 and the fixed seat 7 can be quickly positioned and installed on the base plate 1, realizing the rapid reconfiguration of the fixture structure. This greatly shortens the time for changing fixtures to adapt to different workpiece clamping and improves production efficiency. The position of the positioning block 3 can be flexibly adjusted, and the positioning distance can be precisely adjusted by adjusting the screw 5 and the positioning plate 6. The position of the clamping mechanism can also be adjusted according to the workpiece requirements, so that the fixture can adapt to the clamping requirements of various workpieces of different shapes and sizes. It has strong versatility and reduces the cost incurred by enterprises due to customized special fixtures. The use of rubber pad 10 can avoid damage to the workpiece surface and help ensure processing accuracy.

[0032] The rubber pad 10 is bonded to the clamping block 9 with strong adhesive. The side surface of the clamping block 9 is provided with a groove 11, and a button 12 is provided inside the groove 11. A lamp 13 is fixedly connected to the side surface of the clamping block 9. A controller 14 is fixedly connected to the upper surface of the cylinder 8. The controller 14, lamp 13, button 12 and cylinder 8 are all electrically connected to an external power source, as is known to those skilled in the art. The lamp 13, button 12 and cylinder 8 are all electrically connected to the controller 14. When the clamping block 9 clamps the workpiece, the button 12 is pressed. At this time, the lamp 13 lights up and the controller 14 controls the cylinder 8 to stop, which can prevent over-clamping.

[0033] The mounting base 7 is provided with mounting holes for mounting cylinder 8. Cylinder 8 is fixedly connected to the mounting base 7 by screws passing through the mounting holes. The end of the adjusting screw 5 away from the positioning plate 6 is provided with a rotating ring 51 for easy rotation. The surface of the rotating ring 51 is provided with an anti-slip rubber sleeve. When the hand rotates the rotating ring 51, the anti-slip rubber sleeve can increase the friction between the hand and the rotating ring 51 to prevent slipping.

[0034] A fixing plate 15 is fixedly connected to the side surface of the T-shaped slider 41. A bolt 16 is threadedly connected to the upper surface of the fixing plate 15. The side surface of the bolt 16 is threadedly connected to the base plate 1. The fixing plate 15 and the base plate 1 can be fixedly connected together by the bolt 16.

[0035] The working principle of this utility model is as follows: First, according to the shape and size of the workpiece to be processed, the positions of the positioning block 3 and the fixing seat 7 on the base plate 1 are determined. The T-shaped slider 1 4 and T-shaped slider 2 41 at the bottom of the positioning block 3 and the fixing seat 7 are slid into the corresponding T-shaped grooves 2 on the base plate 1 respectively. After moving to the appropriate position, the T-shaped slider 2 41 is fixed on the base plate 1 by tightening the bolt 16. The workpiece is placed on the base plate 1 so that one end of the workpiece contacts the back plate 17. According to the specific size of the workpiece, the adjusting screw 5 is rotated. The adjusting screw 5 drives the positioning plate 6 to move, so that the positioning plate 6 fits with the positioning surface of the workpiece, thereby achieving precise positioning of the workpiece. The cylinder 8 is started. The piston rod of the cylinder 8 extends and drives the clamping block 9 to move towards the workpiece until the clamping block 9 clamps the workpiece tightly. At this time, the rubber pad 10 is in close contact with the surface of the workpiece, providing stable friction and protection. At the same time, the button 12 is pressed and the light 13 lights up. The controller 14 controls the cylinder 8 to stop.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick recombination fixture structure for mechanical numerical control automated machining, comprising a base plate (1), characterized in that: The upper surface of the substrate (1) is provided with a plurality of uniformly distributed T-shaped grooves (2), and the upper surface of the substrate (1) is provided with a back plate (17); A positioning block (3) is arranged at the bottom of the positioning block (3), and a T-shaped slider (4) matched with the T-shaped groove (2) is arranged at the bottom of the positioning block (3), the positioning block (3) is connected with the T-shaped groove (2) through the T-shaped slider (4), and the positioning block (3) is provided with an adjusting screw (5) on one side; the adjusting screw (5) penetrates the positioning block (3) and is connected with the positioning block (3) in a threaded manner; and a positioning plate (6) is rotatably connected to the end of the adjusting screw (5); A clamping mechanism is arranged on the fixing seat (7), the fixing seat (7) is provided with a T-shaped slider (41) matched with the T-shaped groove (2) at the bottom, a pneumatic cylinder (8) is arranged on the fixing seat (7), a clamping block (9) is connected to the end of the piston rod of the pneumatic cylinder (8), and a rubber pad (10) is arranged on the side of the clamping block (9) in contact with the workpiece.

2. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The distribution interval of the T-shaped groove (2) on the substrate (1) is equal, and the length direction of the T-shaped groove (2) is parallel to the edge of the substrate (1).

3. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The positioning block (3) is made of high-strength alloy steel, and an anti-skid pad is arranged on the side of the positioning plate (6) in contact with the workpiece.

4. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The pneumatic cylinder (8) is an adjustable pressure pneumatic element, and the output pressure of the pneumatic cylinder (8) is controlled by an external air source and a pressure adjusting device.

5. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The rubber pad (10) is bonded to the clamping block (9) by strong glue, and a groove (11) is arranged on the side surface of the clamping block (9), and a button (12) is arranged in the groove (11).

6. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The fixing seat (7) is provided with a mounting hole for mounting the pneumatic cylinder (8), and the pneumatic cylinder (8) is fixedly connected with the fixing seat (7) through the mounting hole by screws.

7. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The end of the adjusting screw (5) away from the positioning plate (6) is provided with a rotating ring (51) for easy rotation, and an anti-skid rubber sleeve is arranged on the surface of the rotating ring (51).

8. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 5, wherein, The side surface of the clamping block (9) is fixedly connected with a lamp (13), and the upper surface of the pneumatic cylinder (8) is fixedly connected with a controller (14).

9. The quick reconfigurable fixture structure for automated machining by computer numerical control according to claim 1, wherein, The side surface of the T-shaped slider (41) is fixedly connected with a fixing plate (15), the upper surface of the fixing plate (15) is threadedly connected with a bolt (16), and the side surface of the bolt (16) is threadedly connected with the substrate (1).