Numerical control machine tool cutter holder stable in clamping

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a stable-clamping numerical control machine tool cutter holder which comprises a cutter holder body, a rectangular groove is formed in the cutter holder body, a clamping plate is slidably connected to the inner wall of the rectangular groove, a swallow-shaped groove B is formed in the inner wall of the slope of the clamping plate, a swallow-shaped block B is slidably connected to the inner wall of the swallow-shaped groove B, and the swallow-shaped block B is slidably connected to the inner wall of the swallow-shaped block B; the end, away from the dovetail groove B, of the dovetail block B is fixedly connected with a limiting block A. The top end of the limiting block A is rotationally connected with a threaded rod through a bearing, the threaded rod is in threaded connection with a sliding rod, and a limiting groove is formed in the outer wall of the sliding rod. The position of the clamping block can be rapidly adjusted by pulling the sliding rod, compared with a traditional tool holder, the tool holder is faster in the using process, meanwhile, the safety is higher, and the clamping block is more convenient to replace due to the fact that the arranged swallow-shaped block is in sliding connection with the swallow-shaped groove.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a tool holder for numerical control machine tools with stable clamping. Background Art

[0002] The tool holder of a CNC machine tool is an important part of the tool magazine of a CNC machine tool. All CNC machine tools with tool magazines must have a tool holder device. The tool holder is used by the tool magazine to store the tools to be used. During the entire tool change process of the machine tool, if the tool position changes, it will cause the tool change to fail.

[0003] The existing tool holder usually has a fixed concave part and a threaded rod to clamp the tool. When in use, the threaded rod is tightened until the bottom end of the threaded rod contacts the tool to clamp the tool.

[0004] This clamping method requires rotating multiple sets of threaded rods on the concave block one by one during use, and the number of rotations of the threaded rods is too large, so the entire clamping process is very cumbersome. At the same time, since the shape of the clamping mouth of the tool clamp is fixed and cannot be disassembled and replaced, it cannot be used to clamp tools of different shapes. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a stable clamping tool holder for CNC machine tools, which solves the problem mentioned in the background art that the clamping process is complicated and cannot be applied to tools of different shapes.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a stable clamping CNC machine tool tool clamp, comprising a tool clamp body, a rectangular groove is provided inside the tool clamp body, the inner wall of the rectangular groove is slidably connected with a clamp plate, a swallow-shaped groove B is provided on the inclined inner wall of the clamp plate, a swallow-shaped block B is slidably connected to the inner wall of the swallow-shaped groove B, and the end of the swallow-shaped block B away from the swallow-shaped groove B is fixedly connected to a limiting block A, the top of the limiting block A is rotatably connected to a threaded rod through a bearing, the threaded rod is threadedly connected to a sliding rod, a limiting groove is provided on the outer wall of the sliding rod, the top of the threaded rod is fixedly connected to a rotating block, the inner wall of the limiting groove is clamped with a clamping block, the top of the tool clamp body is fixedly connected to the limiting block B, the right end of the clamping block is elastically connected to the limiting block B through a reset spring, the outer side of the clamping block is slidably connected to the inner wall of the limiting block B, and the end of the clamping block away from the limiting groove is fixedly connected to a pull rod.

[0009] Preferably, a swallow-shaped groove A is formed at the bottom end of the clamping plate, a swallow-shaped block A is slidably connected to the inner wall of the swallow-shaped groove A, and one end of the swallow-shaped block A away from the swallow-shaped groove A is fixedly connected to a clamping block.

[0010] Preferably, a slide groove is formed through the side of the tool holder body, and sliders are fixedly connected to the front and rear surfaces of the clamping plate, and the side of the slider away from the clamping plate is slidably connected to the slide groove.

[0011] Preferably, the shape of the clamping plate is a right-angled trapezoid, and the shape of the limiting block A is an isosceles trapezoid.

[0012] Preferably, the outer wall of the slide rod slides through the top of the tool holder body.

[0013] Preferably, a fixing block is threadedly connected to the outer wall of the threaded rod.

[0014] Preferably, one end of the return spring is fixedly connected to the right side of the clamping block, and the other end of the return spring is fixedly connected to the inner wall of the limit block B.

[0015] Preferably, the pull rod passes through and is slidably connected to the right side of the limit block B.

[0016] (III) Beneficial effects

[0017] The utility model provides a stable clamping tool holder for CNC machine tools, which has the following beneficial effects:

[0018] (1) When the stable clamping CNC machine tool tool clamp is in use, the position of the clamp block can be quickly adjusted by pulling the sliding rod, the position of the clamp block can be accurately adjusted by rotating the threaded rod, and the threaded rod can be fixed by rotating the fixed block to prevent the threaded rod from reversing during operation and causing the tool to fall off. Compared with traditional tool clamps, it is faster and safer to use.

[0019] (2) When the CNC machine tool tool clamp with stable clamping is in use, the sliding connection between the swallow-shaped block and the swallow-shaped groove makes it more convenient to replace the clamp block. Compared with the traditional device, different tool clamps can be replaced for clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is the overall front sectional view of the utility model;

[0022] Figure 3 It is a side sectional view of the utility model as a whole;

[0023] Figure 4This is a schematic diagram of the structure of the swallow-shaped block B of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure A of the utility model.

[0025] In the figure: 1. tool holder body; 2. rectangular groove; 3. slide groove; 4. clamping plate; 5. slider; 6. swallow-shaped groove A; 7. swallow-shaped block A; 8. clamping block; 9. swallow-shaped groove B; 10. swallow-shaped block B; 11. limit block A; 12. threaded rod; 13. slide rod; 14. limit groove; 15. fixed block; 16. rotating block; 17. clamping block; 18. reset spring; 19. limit block B; 20. pull rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides a stable clamping CNC machine tool tool clamp, including: a tool clamp body 1, a rectangular groove 2 is opened inside the tool clamp body 1, a sliding groove 3 is opened through the side of the tool clamp body 1, a clamp plate 4 is slidably connected to the inner wall of the rectangular groove 2, and the shape of the clamp plate 4 is a right-angled trapezoid, and sliders 5 are fixedly connected to the front and rear surfaces of the clamp plate 4, and the side of the slider 5 away from the clamp plate 4 is slidably connected to the sliding groove 3. By sliding the slider 5 in the sliding groove 3, the clamp plate 4 can be limited up and down to ensure that the clamp plate 4 can only slide left and right, and the clamp plate 4 is prevented from being displaced in the up and down directions, thereby affecting the fixed position of the tool, and a swallow-shaped groove B9 is opened on the inner wall of the inclined surface of the clamp plate 4, and a swallow-shaped block B10 is slidably connected to the inner wall of the swallow-shaped groove B9, and the clamp plate 4 can be driven to move left and right by the swallow-shaped block B10 sliding in the swallow-shaped groove B9. The clamp block 8 can be controlled to move by the left and right movement of the clamp plate 4 to clamp the tool.

[0028] Furthermore, one end of the swallow-shaped block B10 away from the swallow-shaped groove B9 is fixedly connected to a limit block A11, and the shape of the limit block A11 is an isosceles trapezoid. The top of the limit block A11 is rotatably connected to a threaded rod 12 through a bearing, and a slide rod 13 is threadedly connected to the threaded rod 12. The outer wall of the slide rod 13 slides through the top of the tool clamp body 1, and the limit block A11 can be driven to move upward by pulling the slide rod 13 upward. The upward movement of the limit block A11 controls the clamp plate 4 to move toward the center, and drives the clamp block to move toward the center to initially clamp the tool. The clamp plate 4 can be further moved toward the center by rotating the threaded rod 12, and the position of the clamp block 8 can be accurately adjusted to ensure that the clamp block 8 can stably clamp the tool.

[0029] Furthermore, a limiting groove 14 is provided on the outer wall of the slide bar 13, and a fixing block 15 is threadedly connected to the outer wall of the threaded rod 12. By rotating the fixing block 15, the rotation of the threaded rod 12 can be fixed. The top of the threaded rod 12 is fixedly connected to a rotating block 16, and a clamping block 17 is clamped on the inner wall of the limiting groove 14. The slide bar 13 can be fixed by clamping the clamping block 17 with the inner wall of the limiting groove 14. The top of the tool holder body 1 is fixedly connected to the limiting block B19, and the right end of the clamping block 17 is elastically connected to the limiting block B19 through a reset spring 18. One end of the reset spring 18 is fixedly connected On the right side of the block 17, the other end of the reset spring 18 is fixedly connected to the inner wall of the limit block B19, and the elasticity of the reset spring 18 ensures that the initial position of the block 17 is engaged with the limit groove 14. The outer side of the block 17 is slidably connected to the inner wall of the limit block B19. The left side of the block 17 is a slope structure, and the end of the block 17 away from the limit groove 14 is fixedly connected with a pull rod 20, which passes through and is slidably connected to the right side of the limit block B19. By pulling the pull rod 20, the engagement between the block 17 and the limit groove 14 can be released, so that the slide bar 13 can move downward.

[0030] Furthermore, a swallow-shaped groove A6 is provided at the bottom end of the clamping plate 4, and a swallow-shaped block A7 is slidably connected to the inner wall of the swallow-shaped groove A6, and a clamping block 8 is fixedly connected to one end of the swallow-shaped block A7 away from the swallow-shaped groove A6. The clamping block 8 can be installed and disassembled by sliding the swallow-shaped block A7 in the swallow-shaped groove A6, so that the clamping block can be replaced and clamped for tools of different shapes.

[0031] The limit block A11 moves upwards and the two groups of clamps 8 are moved toward the center, thereby driving the clamping block 8 at the bottom to initially clamp and fix the tool. Then, the rotating block 16 is rotated so that the rotating block 16 drives the threaded rod 12 to rotate. The threaded rod 12 moves upwards along the sliding rod 13 and drives the limit block A11 to continue to move upwards a short distance, which can increase the clamping force of the two groups of clamping blocks 8 on the tool and make the clamping more secure. When the tool needs to be disassembled, the pull rod 20 is pulled to disengage the clamping block 17 from the limit groove 14, so that the clamping block 17 and the sliding rod 13 can be released. At this time, the tool can be disassembled.

[0032] When 8 is disassembled and replaced, pulling the slide bar 13 upwards can drive the limit block A11 to move upwards, so that the swallow-shaped groove A6 is exposed, and the clamping block 8 is moved toward the center so that the swallow-shaped block A7 on the clamping block 8 is disengaged from the swallow-shaped groove A6, and the clamping block 8 of a suitable shape is installed on the clamping plate 4 in the opposite way to achieve clamping of tools of different shapes.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool holder for a CNC machine tool with stable clamping, comprising a tool holder body (1), characterized in that: A rectangular groove (2) is provided inside the tool holder body (1), and a clamping plate (4) is slidably connected to the inner wall of the rectangular groove (2). A swallow-shaped groove B (9) is provided on the inclined inner wall of the clamping plate (4), and a swallow-shaped block B (10) is slidably connected to the inner wall of the swallow-shaped groove B (9). The end of the swallow-shaped block B (10) away from the swallow-shaped groove B (9) is fixedly connected to a limit block A (11), and the top end of the limit block A (11) is rotatably connected to a threaded rod (12) through a bearing, and a sliding rod (13) is threadedly connected to the threaded rod (12). The sliding rod A limiting groove (14) is provided on the outer wall; the top end of the threaded rod (12) is fixedly connected to a rotating block (16); the inner wall of the limiting groove (14) is clamped with a clamping block (17); the top end of the tool holder body (1) is fixedly connected to a limiting block B (19); the limiting block B (19) is elastically connected to the right end of the clamping block (17) through a return spring (18); the outer side of the clamping block (17) is slidably connected to the inner wall of the limiting block B (19); and the end of the clamping block (17) away from the limiting groove (14) is fixedly connected to a pull rod (20).

2. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: A swallow-shaped groove A (6) is formed at the bottom end of the clamping plate (4), a swallow-shaped block A (7) is slidably connected to the inner wall of the swallow-shaped groove A (6), and a clamping block (8) is fixedly connected to one end of the swallow-shaped block A (7) away from the swallow-shaped groove A (6).

3. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: A slide groove (3) is provided through the side of the tool holder body (1), and sliders (5) are fixedly connected to the front and rear surfaces of the clamping plate (4), and the side of the slider (5) away from the clamping plate (4) is slidably connected to the slide groove (3).

4. The stable clamping CNC machine tool tool holder according to claim 1, characterized in that: The shape of the clamping plate (4) is a right-angled trapezoid, and the shape of the limiting block A (11) is an isosceles trapezoid.

5. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: The outer wall of the slide rod (13) slides through the top of the tool holder body (1).

6. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: A fixing block (15) is threadedly connected on the outer wall of the threaded rod (12).

7. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: One end of the return spring (18) is fixedly connected to the right side of the clamping block (17), and the other end of the return spring (18) is fixedly connected to the inner wall of the limit block B (19).

8. The stable clamping tool holder for CNC machine tools according to claim 1, characterized in that: The pull rod (20) passes through and is slidably connected to the right side of the limit block B (19).

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