Axial positioning device of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool axial positioning device which is characterized in that the upper surface of a supporting plate is fixedly connected with a stand column and a second fixing block, the upper surface of the second fixing block is fixedly connected with a lower fixing plate, the upper surface of the stand column is fixedly connected with a top plate, a first fixing block is arranged below the top plate, and the surface of one side of the first fixing block is fixedly connected with a first sliding block. A first sliding groove is formed in the stand column, an upper fixing plate is fixedly connected to the lower surface of the first fixing block, the upper fixing plate and the lower fixing plate are both in a V shape, V-shaped grooves are formed in the first fixing block and the second fixing blocks, the upper fixing plate and the lower fixing plate are located in the V-shaped grooves, openings of the upper fixing plate and the lower fixing plate are opposite, the two second fixing blocks are arranged, and the first fixing block is located between the two second fixing blocks. By means of the structure, more stable clamping can be conveniently provided, the positioning precision of the workpiece in the machining process is guaranteed, deviation caused by improper clamping is reduced, meanwhile, it can be guaranteed that the workpiece is evenly stressed in the machining process, and the risk of material deformation is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of axial positioning device for CNC machine tools, and particularly to an axial positioning device for CNC machine tools. Background Technology

[0002] Existing axial positioning devices for CNC machine tools, while designed for ease of use, suffer from several limitations. They cannot maintain a stable clamping position, leading to positioning accuracy deviations due to improper clamping. They are unsuitable for workpieces of varying shapes and sizes, and the uneven pressure on the workpiece during machining can cause material deformation. For example, Chinese patent CN202021878327.6 discloses an axial positioning device for a CNC machining center, which includes a mounting plate with a guide rail fixedly mounted on its upper surface. A slider is movably mounted on the outer surface of the guide rail, and a through hole is formed on the upper surface of the slider, into which a fixing screw is inserted. While this structure facilitates use, it still cannot maintain a stable clamping position, leading to positioning accuracy deviations due to improper clamping. It is unsuitable for workpieces of varying shapes and sizes, and the uneven pressure on the workpiece during machining can cause material deformation, thus limiting its applicability. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an axial positioning device for CNC machine tools. By setting up a support block, a support plate, a column and a second fixed block, a top plate, a first fixed block, a first slider, a first slide groove, a V-shaped upper fixed plate and a lower fixed plate, and a V-shaped groove, it is possible to provide a more stable clamping effect, ensure the positioning accuracy of the workpiece during the processing, reduce deviations caused by improper clamping, adapt to workpieces of different shapes and sizes, especially cylindrical or irregularly shaped workpieces, and at the same time ensure that the workpiece is subjected to uniform pressure during the processing, reducing the risk of material deformation.

[0004] This utility model also provides a CNC machine tool axial positioning device as described above, comprising: a support block, a support plate fixedly connected to the upper surface of the support block, a column and a second fixing block fixedly connected to the upper surface of the support plate, a lower fixing plate fixedly connected to the upper surface of the second fixing block, a top plate fixedly connected to the upper surface of the column, a first fixing block disposed below the top plate, a first slider fixedly connected to one side surface of the fixing block, a first sliding groove disposed on the column, the first slider slidingly connected to the first sliding groove, an upper fixing plate fixedly connected to the lower surface of the fixing block, both the upper and lower fixing plates being V-shaped, and the first fixing block... The second fixing block is provided with a V-shaped groove. The upper fixing plate and the lower fixing plate are located in the V-shaped groove and their openings face each other. There are two second fixing blocks, with the first fixing block located between the two second fixing blocks. The side surfaces of the upper fixing plate and the lower fixing plate are provided with elastic pads. Through the above structure, a more stable clamping effect can be provided, ensuring the positioning accuracy of the workpiece during the processing, reducing deviations caused by improper clamping, and adapting to workpieces of different shapes and sizes, especially cylindrical or irregularly shaped workpieces. At the same time, it can ensure that the workpiece is subjected to uniform pressure during processing, reducing the risk of material deformation.

[0005] According to the present invention, an axial positioning device for a CNC machine tool has a threaded column threadedly connected to the top plate, and a gripper block is fixedly connected to the threaded column. The gripper block is located directly above the top plate. This structure facilitates the rotation of the threaded column.

[0006] According to the present invention, an axial positioning device for a CNC machine tool is provided below the top plate, a lifting plate is provided inside the lifting plate, a rotating groove is provided inside the rotating groove, a rotating block is rotatably connected inside the rotating groove, a threaded column is fixedly connected to the upper surface of the rotating block, and a fixed block is fixedly connected to the lower surface of the lifting plate. Through the above structure, the lifting plate can be raised and lowered when the threaded column is rotated.

[0007] According to the present invention, an axial positioning device for a CNC machine tool is provided with a sliding groove 2 on the lower fixed plate and the second fixed block, and a sliding block 2 is slidably connected in the sliding groove 2. The above structure facilitates the sliding of the second sliding block and limits the movement area of ​​the second sliding block.

[0008] According to the present invention, an axial positioning device for a CNC machine tool is provided with movable grooves on the first fixed block and the first slider. The movable grooves are interconnected. A movable plate is slidably connected in the movable groove. The second slider on the first fixed block is fixedly connected to the lower surface of the movable plate. Through the above structure, it is convenient for the movable plate to move in the movable groove.

[0009] According to the present invention, an axial positioning device for a CNC machine tool is provided, wherein a fixing block three is fixedly connected to one side surface of the slider, a threaded rod one is threadedly connected to the fixing block three, an abutment block is fixedly connected to the top end of the threaded rod one, and the abutment block is rotatably connected to the movable plate. Through the above structure, it is convenient to support and limit the movable plate and to fix its position.

[0010] According to the present invention, an axial positioning device for a CNC machine tool is provided on the support block, a sliding groove is provided on the sliding groove, a slider is slidably connected in the sliding groove, a connecting block is fixedly connected to the lower surface of the slider on the lower fixed plate and the lower surface of the slider on the fixed block, and the slider is fixedly connected to both ends of the connecting block. Through the above structure, it is convenient to limit the movement area of ​​the connecting block and prevent it from deviating when lifting.

[0011] According to the present invention, an axial positioning device for a CNC machine tool is provided, wherein a connecting plate is fixedly connected to the side surface of the support block, a threaded rod is threadedly connected to the connecting plate, and another abutment block is fixedly connected to the top end of the threaded rod. The above structure facilitates the rotation of the threaded rod to raise and lower the connecting block. Beneficial effects

[0012] Compared with existing technologies, this CNC machine tool axial positioning device, by setting up a support block, a support plate, a column and a second fixed block, a top plate, a first fixed block, a first slider, a first slide groove, a V-shaped upper fixed plate and a lower fixed plate, and a V-shaped groove, can provide a more stable clamping effect, ensure the positioning accuracy of the workpiece during processing, reduce deviations caused by improper clamping, and can adapt to workpieces of different shapes and sizes, especially cylindrical or irregularly shaped workpieces. At the same time, it can ensure that the workpiece is subjected to uniform pressure during processing, reducing the risk of material deformation. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall structural diagram of an axial positioning device for a CNC machine tool according to the present invention;

[0015] Figure 2 This is a bottom view of the axial positioning device for a CNC machine tool according to the present invention.

[0016] Figure 3 This is a transverse sectional view of an axial positioning device for a CNC machine tool according to the present invention.

[0017] Figure 4 This is a longitudinal sectional view of an axial positioning device for a CNC machine tool according to the present invention.

[0018] Figure 5This is a plan view of an axial positioning device for a CNC machine tool according to the present invention.

[0019] Legend:

[0020] 1. Support block; 2. Connecting plate; 3. Support plate; 4. Column; 5. Slide groove one; 6. Slider one; 7. Top plate; 8. Threaded column; 9. Grab block; 10. Fixing block one; 11. Upper fixing plate; 12. Lower fixing plate; 13. Fixing block two; 14. Elastic pad; 15. Fixing block three; 16. Threaded rod one; 17. Abutment block; 18. Movable plate; 19. Movable groove; 20. Threaded rod two; 21. Slide groove two; 22. Slider two; 23. Connecting block; 24. Rotating groove; 25. Rotating block; 26. Lifting plate; 27. Slider three; 28. Slide groove three. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-5 This utility model discloses an axial positioning device for a CNC machine tool, comprising: a support block 1; a support plate 3 fixedly connected to the upper surface of the support block 1; a column 4 and a second fixing block 13 fixedly connected to the upper surface of the support plate 3; a lower fixing plate 12 fixedly connected to the upper surface of the second fixing block 13; a top plate 7 fixedly connected to the upper surface of the column 4; a threaded post 8 threadedly connected to the top plate 7; a gripping block 9 fixedly connected to the threaded post 8; the gripping block 9 being located directly above the top plate 7; a lifting plate 26 disposed below the top plate 7; a rotating groove 24 disposed within the lifting plate 26; a rotating block 25 rotatably connected within the rotating groove 24; the threaded post 8 fixedly connected to the upper surface of the rotating block 25; a first fixing block 10 fixedly connected to the lower surface of the lifting plate 26; and a first fixing block 10 disposed below the top plate 7. A slider 6 is fixedly connected to the side surface of the fixing block 10. A groove 5 is provided on the column 4. The slider 6 is slidably connected to the groove 5. An upper fixing plate 11 is fixedly connected to the lower surface of the fixing block 10. Both the upper fixing plate 11 and the lower fixing plate 12 are V-shaped. V-shaped grooves are provided on the fixing block 10 and the fixing block 2 13. The upper fixing plate 11 and the lower fixing plate 12 are located in the V-shaped grooves and their openings face each other. There are two fixing blocks 2 13. The fixing block 10 is located between the two fixing blocks 2 13. Elastic pads 14 are provided on the side surfaces of the upper fixing plate 11 and the lower fixing plate 12. A groove 21 is provided on the lower fixing plate 12 and the fixing block 2 13, and on the fixing block 10 and the upper fixing plate 11. A slider 22 is slidably connected in the groove 21.

[0023] Specifically, when the threaded column 8 is rotated by the gripper 9, the rotating block 25 rotates within the rotating groove 24. When the threaded column 8 descends, it drives the lifting plate 26 to rise and fall, which in turn drives the fixed block 10 to rise and fall, and then drives the upper fixed plate 11 to rise and fall, clamping the workpiece placed on the lower fixed plate 12. The slide groove 5 and the slider 6 limit the lifting area of ​​the fixed block 10 to prevent it from deviating. The V-shaped design of the upper fixed plate 11 and the lower fixed plate 12 makes the clamping more stable and is suitable for workpieces of different shapes and sizes. The elastic pad 14 is used to absorb high-frequency vibration and compensate for clamping errors.

[0024] Fixed block 10 and slider 6 are provided with movable grooves 19, which are interconnected. Movable plate 18 is slidably connected in movable groove 19. Slider 22 on fixed block 10 is fixedly connected to the lower surface of movable plate 18. Fixed block 3 15 is fixedly connected to the side surface of slider 6. Threaded rod 16 is threadedly connected to fixed block 3 15. Abutting block 17 is fixedly connected to the top of threaded rod 16. Abutting block 17 is rotatably connected to movable plate 18. Support block 1 is provided with sliding groove 3 28. Slider 3 27 is slidably connected in sliding groove 3 28. Connecting block 23 is fixedly connected to the lower surface of slider 22 on lower fixed plate 12 and fixed block 2 13. Slider 3 27 is fixedly connected to both ends of connecting block 23. Connecting plate 2 is fixedly connected to the side surface of support block 1. Threaded rod 20 is threadedly connected to connecting plate 2. Another abutting block 17 is fixedly connected to the top of threaded rod 20.

[0025] Specifically, by rotating the threaded rod 16, the abutment block 17 on the threaded rod 16 is rotatably connected to the movable plate 18, and the threaded rod 16 is threadedly connected to the fixed block 15. When the threaded rod 16 rotates, the movable plate 18 can be raised and lowered, which in turn raises and lowers the slider 22 on the fixed block 10, thereby strengthening the fixation of the workpiece. When the threaded rod 20 is rotated, since it is threadedly connected to the connecting plate 2, the abutment block 27 on the threaded rod 20 is rotated, which raises and lowers the connecting block 23. Under the action of the slider 27 and the slide groove 28, the raising and lowering of the connecting block 23 is limited, which in turn raises and lowers the slider 22 on the lower fixed plate 12.

[0026] Working principle: In use, the workpiece is placed on the lower fixed plate 12, and the height of the slider 22 on the lower fixed plate 12 is adjusted by rotating the threaded rod 20 to support the workpiece. Then, by rotating the threaded column 8, the lifting plate 26 drives the fixed block 10 to rise and fall, which in turn drives the upper fixed plate 11 to rise and fall, clamping and fixing the workpiece. Then, by rotating the threaded rod 16, the movable plate 18 is lowered to reinforce the workpiece, achieving six-point fixation for better stability. At this point, processing can begin.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An axial positioning device for a CNC machine tool, characterized in that, include: A support block (1) is fixedly connected to a support plate (3) on its upper surface. A column (4) and a second fixing block (13) are fixedly connected to the upper surface of the support plate (3). A lower fixing plate (12) is fixedly connected to the upper surface of the second fixing block (13). A top plate (7) is fixedly connected to the upper surface of the column (4). A first fixing block (10) is provided below the top plate (7). A first slider (6) is fixedly connected to the side surface of the first fixing block (10). A first sliding groove (5) is provided on the column (4). The first slider (6) and the first sliding groove (5) are slidably connected. Next, an upper fixing plate (11) is fixedly connected to the lower surface of the fixing block one (10). The upper fixing plate (11) and the lower fixing plate (12) are both V-shaped. The fixing block one (10) and the fixing block two (13) are provided with V-shaped grooves. The upper fixing plate (11) and the lower fixing plate (12) are located in the V-shaped grooves and their openings face each other. There are two fixing blocks two (13). The fixing block one (10) is located between the two fixing blocks two (13). The side surfaces of the upper fixing plate (11) and the lower fixing plate (12) are provided with elastic pads (14).

2. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, A threaded post (8) is threadedly connected to the top plate (7), and a gripper (9) is fixedly connected to the threaded post (8). The gripper (9) is located directly above the top plate (7).

3. The axial positioning device for a CNC machine tool according to claim 2, characterized in that, A lifting plate (26) is provided below the top plate (7). A rotating groove (24) is provided inside the lifting plate (26). A rotating block (25) is rotatably connected inside the rotating groove (24). A threaded column (8) is fixedly connected to the upper surface of the rotating block (25). A fixed block (10) is fixedly connected to the lower surface of the lifting plate (26).

4. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, The lower fixing plate (12) and the second fixing block (13), the first fixing block (10) and the upper fixing plate (11) are all provided with a second sliding groove (21), and a second slider (22) is slidably connected in the second sliding groove (21).

5. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, The fixed block (10) and the slider (6) are provided with movable grooves (19), the movable grooves (19) are interconnected, and a movable plate (18) is slidably connected in the movable groove (19). The slider (22) on the fixed block (10) is fixedly connected to the lower surface of the movable plate (18).

6. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, A fixing block three (15) is fixedly connected to the side surface of the slider one (6), and a threaded rod one (16) is threadedly connected to the fixing block three (15). An abutment block (17) is fixedly connected to the top of the threaded rod one (16), and the abutment block (17) is rotatably connected to the movable plate (18).

7. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, The support block (1) is provided with a sliding groove (28), and a slider (27) is slidably connected in the sliding groove (28). A connecting block (23) is fixedly connected to the lower surface of the slider (22) on the lower fixing plate (12) and the fixing block (13). The slider (27) is fixedly connected to both ends of the connecting block (23).

8. The axial positioning device for a CNC machine tool according to claim 1, characterized in that, A connecting plate (2) is fixedly connected to the side surface of the support block (1), and a threaded rod (20) is threadedly connected to the connecting plate (2). Another abutment block (17) is fixedly connected to the top of the threaded rod (20).

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