Tool clamp for numerical control drilling machining of workpiece

Abstract

The utility model provides a work fixture for numerical control drilling of a workpiece, which belongs to the technical field of work fixtures and comprises a fixture seat, supporting seats arranged on two sides of the fixture seat, an electric telescopic rod arranged on one side of each supporting seat, a movable clamping plate fixedly connected to one end of each electric telescopic rod, and guide limiting plates fixedly connected to two sides of each movable clamping plate. A limiting groove is formed in the top of the limiting block; an arch-shaped clamping plate is slidably connected into the moving groove; a limiting screw rod is arranged at the bottom of the inner wall of the limiting groove; a communicating hole is formed in the middle of the arch-shaped clamping plate; according to the tool clamp for numerical control drilling of the workpiece, the clamping force of the electric telescopic rod is matched, the surface of the workpiece is effectively clamped, the clamping stability of the workpiece is improved, and the clamping force is applied to the two sides and the top of the workpiece through the movable clamping plate and the bow-shaped clamping plate respectively.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a tooling and fixture for CNC drilling of workpieces. Background Technology

[0002] In existing workpiece clamping processes, the clamping end of the fixture is not tightly gripped, affecting the stability of the workpiece. The "A Drilling Fixture for Easy Fixing" disclosed in application number "CN202220906233.8" is an increasingly mature technology. It utilizes a first and second sliding groove on the inner side of the clamping block body, allowing the arc-shaped clamping block to be installed and move up and down within the clamping block body. When the arc-shaped clamping block moves upwards, one end of the fixing member enters the fixing hole to align it. To fix the part, place the part suitable for clamping the clamping block body. If it is necessary to clamp the part with an arc shape, move the arc-shaped clamping block downward and fix it with the fixing component. The arc-shaped fixing component can clamp the arc-shaped part, so that the part is clamped more stably and it is convenient for the operator to clamp different parts. However, the device also has the following defects: when fixing the workpiece, the force direction of the clamping end is too dispersed. It can only clamp the workpiece in two directions. At the same time, it is not convenient to adapt to workpieces of different sizes and to apply force to clamp the workpiece according to the surface size of the workpiece. Utility Model Content

[0003] The purpose of this utility model is to provide a tooling fixture for CNC drilling of workpieces, which aims to solve the problem that in the prior art, when fixing workpieces, the force direction of the clamping end is too dispersed, and the workpiece can only be clamped in two directions. At the same time, it is not convenient to adapt to workpieces of different sizes and to apply force to clamp the workpiece according to its surface size.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a clamp base, with support seats on both sides of the clamp base. An electric telescopic rod is provided on one side of each support seat. A movable clamping plate is fixedly connected to one end of the electric telescopic rod. Guide limiting plates are fixedly connected to both sides of the movable clamping plate. A moving groove is opened at the top of the guide limiting plate. A limiting block is slidably connected within the moving groove. A limiting groove is opened at the top of the limiting block. An arc-shaped clamping plate is slidably connected within the moving groove. A limiting screw is provided at the bottom of the inner wall of the limiting groove. A communicating hole is opened in the middle of the arc-shaped clamping plate. The limiting screw is inserted into the communicating hole. An anti-slip knob is threadedly connected to one end of the limiting screw.

[0005] In an embodiment of the tooling fixture for CNC drilling of workpieces according to the present invention, a limiting slot is provided at the bottom of the inner wall of the moving groove, and an insert plate is hinged to both sides of the limiting block, and the insert plate is engaged with the limiting slot.

[0006] In this solution, the workpiece is placed on the surface of the fixture base. The movable clamping plate is pushed by the electric telescopic rod to clamp the two sides of the workpiece. At this time, the limiting block in the sliding groove is moved to the four corners of the workpiece. The insert plates on both sides of the limiting block are inserted into the corresponding limiting slots to limit the position of the limiting block. The bow-shaped clamping plate is moved to clamp the four top corners of the workpiece. The anti-slip knob on the top of the limiting screw is rotated to form a downward pressing force, which applies clamping force to the four top corners of the workpiece. Combined with the clamping force of the electric telescopic rod, the workpiece surface is effectively clamped, improving the workpiece clamping stability.

[0007] In an embodiment of the tooling fixture for CNC drilling of workpieces according to the present invention, a first fixing hole is provided between adjacent limiting slots, and a second fixing hole is provided in the middle of the insert plate. Screws are internally threaded to the first fixing hole and the second fixing hole.

[0008] In this design, guide grooves are provided on both sides of the inner wall of the moving groove, and guide blocks are provided on both sides of the limiting block. The guide blocks are slidably connected in the guide grooves.

[0009] In an embodiment of the tooling fixture for CNC drilling of workpieces according to the present invention, guide grooves are provided on both sides of the inner wall of the moving groove, and guide blocks are provided on both sides of the limiting block, and the guide blocks are slidably connected in the guide groove.

[0010] In this design, guide grooves are provided on both sides of the top of the fixture base, and the movable clamping plate is slidably connected in the guide grooves.

[0011] In an embodiment of the tooling fixture for CNC drilling of workpieces according to the present invention, guide grooves are provided on both sides of the top of the fixture seat, and the movable clamping plate is slidably connected in the guide grooves.

[0012] In this design, anti-slip pads are provided on one side of the top of the bow-shaped clamp and one side of the movable clamp.

[0013] In one embodiment of the tooling fixture for CNC drilling of workpieces according to this utility model, anti-slip pads are provided on one side of the top of the bow-shaped clamping plate and one side of the movable clamping plate.

[0014] In this solution, the friction force on the workpiece surface is increased to improve the workpiece clamping force.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The movable clamping plate is pushed by the electric telescopic rod to clamp the two sides of the workpiece. The limiting block in the sliding groove is moved to the four corners of the workpiece. The insert plates on both sides of the limiting block are inserted into the corresponding limiting slots. The first fixing hole and the second fixing hole are connected by screws to fix the limiting block in the designated position. The anti-slip knob on the top of the limiting screw is rotated to form a downward pressing force, so that the clamping force is applied to the four corners of the top of the workpiece. Combined with the clamping force of the electric telescopic rod, the surface of the workpiece is effectively clamped, improving the clamping stability of the workpiece. The movable clamping plate and the bow-shaped clamping plate apply clamping force to the two sides and the top of the workpiece respectively, improving the clamping stability of the workpiece. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate 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, but do not constitute a limitation thereof. In the drawings:

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

[0019] Figure 2 This is a schematic diagram of the guide and limiting plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting block structure of this utility model.

[0021] In the diagram: 1. Fixture base;

[0022] 2. Support base;

[0023] 3. Electric telescopic pole;

[0024] 4. Movable clamp;

[0025] 5. Guide limit plate;

[0026] 6. Moving slot;

[0027] 7. Limit block;

[0028] 8. Limiting groove;

[0029] 9. Bow-shaped clamp;

[0030] 10. Limiting screw; 11. Communicating hole; 12. Anti-slip knob; 13. Limiting slot; 14. Insert plate; 15. First fixing hole;

[0031] 16. Second fixing hole; 17. Guide groove; 18. Guide block; 19. Guide groove; 20. Anti-slip pad. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-3 This utility model provides the following technical solution: a tooling fixture for CNC drilling of workpieces, including a fixture base 1, support seats 2 on both sides of the fixture base 1, an electric telescopic rod 3 on one side of the support seat 2, a movable clamping plate 4 fixedly connected to one end of the electric telescopic rod 3, guide limiting plates 5 fixedly connected to both sides of the movable clamping plate 4, a moving groove 6 opened at the top of the guide limiting plate 5, a limiting block 7 slidably connected in the moving groove 6, a limiting groove 8 opened at the top of the limiting block 7, an arc-shaped clamping plate 9 slidably connected in the moving groove 6, a limiting screw 10 provided at the bottom of the inner wall of the limiting groove 8, a connecting hole 11 opened in the middle of the arc-shaped clamping plate 9, the limiting screw 10 inserted into the connecting hole 11, and an anti-slip knob 12 threadedly connected to one end of the limiting screw 10.

[0034] In a specific embodiment of a tooling fixture for CNC drilling of a workpiece, please refer to... Figure 2-3 Limiting slots 13 are provided at the bottom of the inner wall of the moving groove 6. Insert plates 14 are hinged on both sides of the limiting block 7, and the insert plates 14 are engaged with the limiting slots 13.

[0035] Please see Figures 2-3 The workpiece is placed on the surface of the fixture base 1. The movable clamping plate 4 is pushed by the electric telescopic rod 3 to clamp the two sides of the workpiece. At this time, the limiting block 7 in the sliding moving groove 6 is moved to the four corners of the workpiece. The insert plates 14 on both sides of the limiting block 7 are inserted into the corresponding limiting slots 13 to limit the position of the limiting block 7. The bow-shaped clamping plate 9 is moved to clamp the four top corners of the workpiece. The anti-slip knob 12 on the top of the limiting screw 10 is rotated to form a downward pressing force, so that the clamping force is applied to the four top corners of the workpiece. Combined with the clamping force of the electric telescopic rod 3, the workpiece surface is effectively clamped, improving the workpiece clamping stability.

[0036] In a specific embodiment of a tooling fixture for CNC drilling of a workpiece, please refer to... Figure 2-3 A first fixing hole 15 is provided between adjacent limiting slots 13, and a second fixing hole 16 is provided in the middle of the insert plate 14. The first fixing hole 15 and the second fixing hole 16 are internally threaded with screws.

[0037] Please see Figures 2-3After the insert plate 14 is inserted into the limiting slot 13, the first fixing hole 15 and the second fixing hole 16 are aligned. The first fixing hole 15 and the second fixing hole 16 are connected by screws to fix the limiting block 7 in the designated position.

[0038] In a specific embodiment of a tooling fixture for CNC drilling of a workpiece, please refer to... Figure 2-3 The inner wall of the moving groove 6 has guide grooves 17 on both sides, and the limiting block 7 has guide blocks 18 on both sides. The guide blocks 18 are slidably connected in the guide grooves 17.

[0039] Please see Figures 2-3 When the limit block 7 moves within the moving groove 6, the guide groove 17 guides the moving position of the guide block 18, thereby improving the stability of the movement of the limit block 7.

[0040] In a specific embodiment of a tooling fixture for CNC drilling of a workpiece, please refer to... Figure 2-3 The clamp base 1 has guide grooves 19 on both sides of the top, and the movable clamping plate 4 is slidably connected in the guide grooves 19.

[0041] Please see Figures 2-3 When the electric telescopic rod 3 pushes the movable clamping plate 4 to clamp the workpiece, the guide groove 19 guides the movement direction of the movable clamping plate 4, thereby improving the movement stability of the movable clamping plate 4.

[0042] In a specific embodiment of a tooling fixture for CNC drilling of a workpiece, please refer to... Figure 2 Anti-slip pads 20 are provided on one side of the top of the bow-shaped clamping plate 9 and one side of the movable clamping plate 4.

[0043] Please refer to the figure: When the workpiece is clamped by the bow-shaped clamping plate 9 and the movable clamping plate 4, the anti-slip pad 20 increases the friction with the workpiece surface and improves the workpiece clamping degree.

[0044] This utility model provides a tooling fixture for CNC drilling of workpieces. The specific usage is as follows: The workpiece is placed on the surface of the fixture base 1. The movable clamping plate 4 is pushed by the electric telescopic rod 3 to clamp both sides of the workpiece. At this time, the limiting block 7 in the sliding groove 6 is moved to the four corners of the workpiece. The insert plates 14 on both sides of the limiting block 7 are inserted into the corresponding limiting slots 13 to limit the position of the limiting block 7. The bow-shaped clamping plate 9 is moved to clamp the top four corners of the workpiece. The limiting slots 14 are then inserted into the insert plates 14. After entering the groove 13, the first fixing hole 15 and the second fixing hole 16 are aligned. The first fixing hole 15 and the second fixing hole 16 are connected by screws to fix the limiting block 7 in the designated position. Rotating the anti-slip knob 12 on the top of the limiting screw 10 forms a downward squeezing force, which applies clamping force to the four corners of the top of the workpiece. Combined with the clamping force of the electric telescopic rod 3, the surface of the workpiece is effectively clamped, improving the workpiece clamping stability. The movable clamping plate 4 and the bow-shaped clamping plate 9 apply clamping force to the sides and top of the workpiece respectively, improving the workpiece clamping stability.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tooling fixture for CNC drilling of workpieces, comprising a fixture base (1), characterized in that: The clamp seat (1) is provided with support seats (2) on both sides. An electric telescopic rod (3) is provided on one side of the support seat (2). A movable clamping plate (4) is fixedly connected to one end of the electric telescopic rod (3). Guide limiting plates (5) are fixedly connected to both sides of the movable clamping plate (4). A moving groove (6) is opened at the top of the guide limiting plate (5). A limiting block (7) is slidably connected in the moving groove (6). A limiting groove (8) is opened at the top of the limiting block (7). An arc-shaped clamping plate (9) is slidably connected in the moving groove (6). A limiting screw (10) is provided at the bottom of the inner wall of the limiting groove (8). A connecting hole (11) is opened in the middle of the arc-shaped clamping plate (9). The limiting screw (10) is inserted into the connecting hole (11). An anti-slip knob (12) is threadedly connected to one end of the limiting screw (10).

2. The tooling fixture for CNC drilling of a workpiece according to claim 1, characterized in that: The bottom of the inner wall of the moving groove (6) is provided with limiting slots (13), and the limiting block (7) is hinged with insert plates (14) on both sides. The insert plates (14) are engaged with the limiting slots (13).

3. The tooling fixture for CNC drilling of a workpiece according to claim 2, characterized in that: A first fixing hole (15) is provided between adjacent limiting slots (13), and a second fixing hole (16) is provided in the middle of the insert plate (14). The first fixing hole (15) and the second fixing hole (16) are internally threaded with screws.

4. The tooling fixture for CNC drilling of a workpiece according to claim 3, characterized in that: The inner wall of the moving groove (6) is provided with guide grooves (17) on both sides, and the limiting block (7) is provided with guide blocks (18) on both sides. The guide blocks (18) are slidably connected in the guide grooves (17).

5. A tooling fixture for CNC drilling of a workpiece according to claim 1, characterized in that: The clamp seat (1) has guide grooves (19) on both sides of the top, and the movable clamp (4) is slidably connected in the guide grooves (19).

6. The tooling fixture for CNC drilling of a workpiece according to claim 1, characterized in that: The top side of the bow-shaped clamp (9) and the side of the movable clamp (4) are provided with anti-slip pads (20).

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