Pneumatic clamp of numerical control machine tool
By designing an adjustable pneumatic fixture for CNC machine tools, the problem of cylinder stroke limitation is solved, and effective clamping and cost reduction of workpieces of different sizes is achieved.
Patent Information
- Application Number
- CN202421117108.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing CNC machine pneumatic fixtures are limited by the cylinder stroke when clamping workpieces of different sizes, which cannot be effectively clamped, resulting in the need to match pneumatic fixtures of different stroke cylinder models, which increases the cost.
A pneumatic clamp including a frame, a cylinder, a first and second moving clamp, a protective assembly and an adjustment assembly is designed, and the limitation of the pneumatic clamp on the cylinder stroke by adjusting the initial position of the first and second moving clamps is reduced. , realize clamping of workpieces of different sizes.
While maintaining the protection function of workpiece surface, it can effectively clamp workpieces of different sizes without the need to match pneumatic fixtures of different stroke cylinder models, reducing costs.
Smart Images
Figure CN222289403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pneumatic clamps, in particular to a pneumatic clamp for a numerically controlled machine tool. Background Art
[0002] Pneumatic clamps for CNC machine tools are clamps controlled by pneumatic systems and are used to clamp workpieces for processing on CNC machine tools. Pneumatic clamps have the characteristics of rapid clamping, releasing and positioning.
[0003] After searching, a pneumatic clamp for CNC machine tools with announcement number CN218696330U is found, which includes a sliding clamp block, a fixed clamp block and a cylinder for driving the sliding clamp block to clamp the workpiece. The sliding clamp block and the fixed clamp block both have an inwardly recessed clamping portion, and the clamping portions of the sliding clamp block and the fixed clamp block face each other. The cylinder is installed on the back of the sliding clamp block, and the cylinder is connected to the sliding clamp block through a push rod.
[0004] Although the above utility model patent can protect the edge of the workpiece while fixing it to prevent the edge of the workpiece from being deformed when it is clamped, the distance between the sliding clamp and the fixed clamp is limited by the stroke of the cylinder, resulting in the inability to clamp workpieces of different sizes well. It is often necessary to set up pneumatic clamps with different stroke cylinder models in the CNC machine tool, which increases the cost.
[0005] Therefore, it is necessary to invent a pneumatic clamp for CNC machine tools. Utility Model Content
[0006] To this end, the utility model provides a pneumatic clamp for a CNC machine tool to solve the problems raised in the above background technology.
[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic clamp for a CNC machine tool, comprising a frame and a cylinder, a first movable clamp block is slidably connected to one side of the frame, and a second movable clamp block is slidably connected to the other side of the frame, and protective components are provided at the opposite ends of the first movable clamp block and the second movable clamp block, the cylinder is installed at one end of the frame close to the first movable clamp block through a first adjusting component, and the cylinder output shaft is fixedly connected to the end of the first movable clamp block, and the second movable clamp block is connected to one end of the frame close to the second movable clamp block through a second adjusting component.
[0008] Preferably, the frame is symmetrically provided with first strip-shaped limiting sliding holes at the front and rear ends, the first movable clamping block is symmetrically fixed with first limiting sliding blocks at the front and rear ends, and the two first limiting sliding blocks slide in the two first strip-shaped limiting sliding holes respectively.
[0009] Preferably, the frame is symmetrically provided with second strip-shaped limiting sliding holes at the front and rear ends, the second movable clamping block is symmetrically fixed with second limiting sliding blocks at the front and rear ends, and the two second limiting sliding blocks slide in the two second strip-shaped limiting sliding holes respectively.
[0010] Preferably, the protection assembly comprises a first rubber pad and a second rubber pad, and the back-to-back ends of the first rubber pad and the second rubber pad are fixed to the opposite ends of the first movable clamping block and the second movable clamping block respectively.
[0011] Preferably, the first adjustment assembly includes two first adjustment screws, and the two first adjustment screws are symmetrically fixed to one end of the frame close to the first movable clamping block.
[0012] Preferably, the first adjustment component also includes a movable adjustment plate, the cylinder end is fixed in the middle of the movable adjustment plate, and connecting holes are symmetrically opened at the front and rear ends of the movable adjustment plate. The two first adjustment screws pass through the two connecting holes horizontally respectively, and the surface of the first adjustment screw is threaded with two positioning nuts, and the positioning nuts are located on both sides of the movable adjustment plate.
[0013] Preferably, a first through hole is opened in the middle of the movable adjustment plate, a second through hole is opened in the middle of one end of the frame close to the first movable clamping block, and the cylinder output shaft passes through the first through hole and the second through hole in sequence.
[0014] Preferably, the second adjustment component includes a threaded hole, which is opened in the middle of one end of the frame close to the second movable clamping block, and the second adjustment screw is threadedly connected to the wall of the threaded hole, and the end of the second adjustment screw is rotatably connected to the end of the second movable clamping block.
[0015] The beneficial effects of the utility model are as follows: through the coordinated use of the set frame, cylinder, first movable clamping block, second movable clamping block, protective assembly, first adjusting assembly and second adjusting assembly, while having the function of protecting the surface of the workpiece, the initial positions of the first movable clamping block and the second movable clamping block can be effectively adjusted, thereby greatly reducing the limitation of the pneumatic clamp on the cylinder stroke, so that workpieces of different sizes can be clamped well, and there is no need to set up pneumatic clamps with different stroke cylinder models on CNC machine tools, which effectively reduces costs and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A structural cross-sectional view of the utility model in the top view direction;
[0017] Figure 2 for Figure 1 A magnified view of the structure at A;
[0018] Figure 3 A top view of the structure provided by the utility model;
[0019] Figure 4 This is a schematic structural diagram of the first movable clamping block and the second movable clamping block provided by the utility model after initial position adjustment.
[0020] In the figure: 1. frame; 2. cylinder; 3. first movable clamp; 4. second movable clamp; 5. first strip-shaped limit sliding hole; 6. first limit sliding block; 7. second strip-shaped limit sliding hole; 8. second limit sliding block; 9. first rubber pad; 10. second rubber pad; 11. first adjusting screw; 12. movable adjusting plate; 13. connecting hole; 14. positioning nut; 15. first through hole; 16. second through hole; 17. threaded hole; 18. second adjusting screw. DETAILED DESCRIPTION
[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] Please refer to the attached Figure 1-4 The utility model provides a pneumatic clamp for a numerically controlled machine tool, including a frame 1 and a cylinder 2. It should be noted that a pipeline of the cylinder 2 is connected to a compressed air source, which is a well-known technology for those skilled in the art and will not be described in detail. A first movable clamping block 3 is slidably connected to one side of the frame 1, and a second movable clamping block 4 is slidably connected to the other side of the frame 1. A protective component is provided at the opposite ends of the first movable clamping block 3 and the second movable clamping block 4. The cylinder 2 is installed at one end of the frame 1 close to the first movable clamping block 3 through a first adjusting component, and the output shaft of the cylinder 2 is fixedly connected to the end of the first movable clamping block 3, that is, when the cylinder 2 is in operation, it can drive the first movable clamping block 3 to slide back and forth in the frame 1, and cooperate with the second movable clamping block 4 to realize the function of clamping the workpiece. The second movable clamping block 4 is connected to one end of the frame 1 close to the second movable clamping block 4 through a second adjusting component.
[0023] The frame 1 is symmetrically provided with first strip-shaped limit sliding holes 5 at the front and rear ends, and the first movable clamping block 3 is symmetrically fixed with first limit sliding blocks 6 at the front and rear ends. The two first limit sliding blocks 6 slide in the two first strip-shaped limit sliding holes 5 respectively. Specifically, under the action of the first strip-shaped limit sliding holes 5 and the first limit sliding blocks 6, the first movable clamping block 3 can stably slide back and forth in the frame 1;
[0024] The frame 1 is also symmetrically provided with second strip-shaped limit sliding holes 7 at the front and rear ends, and the second movable clamping block 4 is symmetrically fixed with second limit sliding blocks 8 at the front and rear ends. The two second limit sliding blocks 8 slide in the two second strip-shaped limit sliding holes 7 respectively. Specifically, under the action of the second strip-shaped limit sliding holes 7 and the second limit sliding blocks 8, the second movable clamping block 4 can stably slide back and forth in the frame 1;
[0025] The protective assembly includes a first rubber pad 9 and a second rubber pad 10, and the back-to-back ends of the first rubber pad 9 and the second rubber pad 10 are respectively fixed to the opposite ends of the first movable clamping block 3 and the second movable clamping block 4. Specifically, when the first movable clamping block 3 is moved by the cylinder 2 to clamp the workpiece, the surface of the workpiece can be effectively protected under the protective effect of the first rubber pad 9 and the second rubber pad 10 to prevent the surface of the workpiece from being damaged due to force clamping;
[0026] The first adjusting component includes two first adjusting screws 11, which are symmetrically fixed to one end of the frame 1 near the first movable clamping block 3 in front and back. The first adjusting component also includes a movable adjusting plate 12, and the end of the cylinder 2 is fixed to the middle of the movable adjusting plate 12. The movable adjusting plate 12 has connecting holes 13 symmetrically opened at the front and rear ends. The two first adjusting screws 11 respectively pass through the two connecting holes 13 horizontally. Two positioning nuts 14 are threadedly connected to the surface of the first adjusting screw 11. The positioning nuts 14 are located on both sides of the movable adjusting plate 12. Specifically, under the action of the positioning nuts 14, the movable adjusting plate 12 can be fixed to any position on the surface of the first adjusting screw 11. The user only needs to control the forward and reverse rotation of the positioning nuts 14 to control the movable adjusting plate 12 to adjust the position on the surface of the first adjusting screw 11, thereby adjusting the initial position of the cylinder 2, and the initial position of the first movable clamping block 3 can be adjusted.
[0027] A first through hole 15 is formed in the middle of the movable adjustment plate 12, a second through hole 16 is formed in the middle of one end of the frame 1 close to the first movable clamping block 3, and the output shaft of the cylinder 2 passes through the first through hole 15 and the second through hole 16 in sequence;
[0028] The second adjustment component includes a threaded hole 17, and the threaded hole 17 is opened in the middle of one end of the frame 1 close to the second movable clamping block 4. The wall of the threaded hole 17 is threadedly connected with a second adjusting screw 18, and the end of the second adjusting screw 18 is rotatably connected to the end of the second movable clamping block 4. It should be noted that the end of the second adjusting screw 18 and the end of the second movable clamping block 4 can be rotatably connected via a bearing. Specifically, the user can control the second movable clamping block 4 to slide back and forth in the frame 1 by rotating the second adjusting screw 18 forward and reversely, thereby adjusting the initial position of the second movable clamping block 4.
[0029] The use process of the utility model is as follows: first, when the first movable clamping block 3 is moved by the cylinder 2 and clamps the workpiece, the surface of the workpiece can be effectively protected under the protective effect of the first rubber pad 9 and the second rubber pad 10 to prevent the surface of the workpiece from being damaged due to force clamping. Secondly, under the action of the positioning nut 14, the movable adjustment plate 12 can be fixed at any position on the surface of the first adjustment screw 11. The user only needs to control the forward and reverse rotation of the positioning nut 14 to control the movable adjustment plate 12 to adjust the position on the surface of the first adjustment screw 11, thereby adjusting the initial position of the cylinder 2. , the initial position of the first movable clamp 3 can be adjusted. Finally, the user can also control the second movable clamp 4 to slide back and forth in the frame 1 by rotating the second adjusting screw 18 in both directions, so the initial position of the second movable clamp 4 can be adjusted. Therefore, the pneumatic clamp not only has the function of protecting the surface of the workpiece, but also can effectively adjust the initial positions of the first movable clamp 3 and the second movable clamp 4, greatly reducing the limitation of the stroke of the cylinder 2 on the pneumatic clamp, so that workpieces of different sizes can be clamped well, and there is no need to set pneumatic clamps with different stroke cylinder models on the CNC machine tool, which effectively reduces the cost.
[0030] The above is only a preferred embodiment of the utility model. Any person skilled in the art can modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.
Claims
1. A pneumatic clamp for a numerically controlled machine tool, comprising a frame (1) and a cylinder (2), characterized in that: A first movable clamp (3) is slidably connected to one side of the frame (1), and a second movable clamp (4) is slidably connected to the other side of the frame (1). Protective components are provided at opposite ends of the first movable clamp (3) and the second movable clamp (4). The cylinder (2) is installed at one end of the frame (1) close to the first movable clamp (3) through a first adjustment component, and the output shaft of the cylinder (2) is fixedly connected to the end of the first movable clamp (3). The second movable clamp (4) is connected to one end of the frame (1) close to the second movable clamp (4) through a second adjustment component.
2. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The frame (1) is symmetrically provided with first strip-shaped limit sliding holes (5) at the front and rear ends, and the first movable clamping block (3) is symmetrically fixed with first limit sliding blocks (6) at the front and rear ends, and the two first limit sliding blocks (6) slide in the two first strip-shaped limit sliding holes (5) respectively.
3. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The frame (1) is also symmetrically provided with second strip-shaped limit sliding holes (7) at the front and rear ends, and the second movable clamping block (4) is symmetrically fixed with second limit sliding blocks (8) at the front and rear ends, and the two second limit sliding blocks (8) slide in the two second strip-shaped limit sliding holes (7) respectively.
4. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The protective assembly comprises a first rubber pad (9) and a second rubber pad (10), and the back-to-back ends of the first rubber pad (9) and the second rubber pad (10) are respectively fixed to the opposite ends of the first movable clamping block (3) and the second movable clamping block (4).
5. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The first adjustment component comprises two first adjustment screws (11), and the two first adjustment screws (11) are symmetrically fixed to one end of the frame (1) close to the first movable clamping block (3).
6. A pneumatic clamp for CNC machine tools according to claim 5, characterized in that: The first adjustment component also includes a movable adjustment plate (12), the end of the cylinder (2) is fixed to the middle of the movable adjustment plate (12), the movable adjustment plate (12) is symmetrically provided with connection holes (13) at the front and rear ends, the two first adjustment screws (11) respectively pass through the two connection holes (13) transversely, and the surface of the first adjustment screws (11) is threadedly connected with two positioning nuts (14), and the positioning nuts (14) are located on both sides of the movable adjustment plate (12).
7. A pneumatic fixture for CNC machine tools according to claim 6, characterized in that: A first through hole (15) is provided in the middle of the movable adjustment plate (12), a second through hole (16) is provided in the middle of one end of the frame (1) close to the first movable clamping block (3), and the output shaft of the cylinder (2) passes through the first through hole (15) and the second through hole (16) in sequence.
8. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The second adjustment component comprises a threaded hole (17), the threaded hole (17) being arranged in the middle of one end of the frame (1) close to the second movable clamping block (4), a second adjustment screw (18) being threadedly connected to the wall of the threaded hole (17), and an end of the second adjustment screw (18) being rotatably connected to an end of the second movable clamping block (4).