CNC four-axis zero-point positioning tool

Abstract

The CNC four-axis zero-point positioning tool is provided with an adjusting mechanism, different positions and different angles of a workpiece need to be machined in the machining process, a first lead screw can be driven by a first motor to rotate in the using process, and at the moment, after the first lead screw drives a movable plate to move in a base, the movable plate is driven by a second motor to rotate; meanwhile, during use, a second motor drives a second lead screw to rotate, and the second lead screw drives a moving block to slide in a moving plate, so that the moving block moves front and back, the workpiece moves front and back, and different positions of the surface of the workpiece are machined; and meanwhile, during use, the lifting mechanism controls the workpiece to move up and down, the rotating mechanism drives the rotating disc to rotate in the machining process, the rotating disc rotates in the workbench, the rotating disc drives the workpiece to rotate, and the workpiece can be conveniently machined at different angles.

Description

Technical Field

[0001] This utility model relates to the field of CNC four-axis zero-point positioning tooling technology, specifically a CNC four-axis zero-point positioning tooling. Background Technology

[0002] A CNC four-axis zero-point positioning fixture is an auxiliary fixture specifically designed for four-axis CNC machine tools to achieve precise zero-point positioning during machining. Its main function is to ensure that the workpiece can be positioned quickly and stably at different machining stages, while improving machining accuracy and efficiency. However, existing devices still have some shortcomings; for example…

[0003] For example, a CNC four-axis zero-point positioning fixture, as disclosed in announcement number CN216371115U, includes a four-axis mechanism with a zero-point positioning component on its side. The zero-point positioning component includes a base plate with a zero-point positioning block at its upper end and a four-axis bridge plate mounted on the upper end of the zero-point positioning block. It also includes a positioning component comprising a positioning plate, a fixing plate, and positioning pins. The positioning plate is located at the bottom of the four-axis mechanism, and the fixing plates are located at both ends of the CNC machine tool. The positioning pins pass through the fixing plate and connect to the positioning plate. The four-axis mechanism includes a four-axis main seat and a four-axis tail seat. A pull pin lock is provided on the bottom surface of the four-axis bridge plate. This device has some problems. While it can be used effectively for positioning and machining workpieces, it is not convenient for machining workpieces at different angles and positions, making it difficult to achieve the expected results. Therefore, we propose a CNC four-axis zero-point positioning fixture device to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a CNC four-axis zero-point positioning fixture to solve the problem that the CNC four-axis zero-point positioning fixture mentioned in the background art is inconvenient to process workpieces from different angles and positions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC four-axis zero-point positioning fixture, comprising a base and a worktable;

[0006] The base is fixedly connected to the first motor, which is connected to the first lead screw. The first lead screw is threadedly connected to the moving plate. The moving plate is slidably connected to the base. The moving plate is fixedly connected to the second motor, which is connected to the second lead screw. The second lead screw is threadedly connected to the moving block. The moving block is slidably connected to the moving plate. The moving block is connected to the worktable via a lifting mechanism. The worktable is connected to the turntable via a rotating mechanism. The turntable is equipped with a clamping mechanism.

[0007] As a preferred embodiment of this utility model, the lifting mechanism includes a moving block, a first push rod, a first slider, a first support rod, a second support rod, a second slider, and a worktable. The moving block is fixedly connected to the first push rod, and the front end of the first push rod is fixedly connected to the first slider. The first slider is slidably connected to the moving block. The first slider is hinged to the lower part of the first support rod, and the upper end of the first support rod is hinged to the worktable. The first support rod and the second support rod are hinged together. The bottom of the second support rod is hinged to the moving block, and the upper end of the second support rod is hinged to the second slider. The second slider is slidably connected to the worktable.

[0008] As a preferred embodiment of this utility model, the lifting mechanism is symmetrically arranged about the center of the moving block, and the upper end of the lifting mechanism is connected to both sides of the bottom of the worktable.

[0009] As a preferred technical solution of this utility model, the rotating mechanism includes a worktable, a third motor, a first gear, a second gear, a rotating shaft, and a turntable. The worktable is fixedly connected to the third motor, and the third motor is connected to the first gear. The first gear and the second gear mesh with each other. The second gear is connected to the rotating shaft, and the rotating shaft and the turntable are fixedly connected.

[0010] As a preferred embodiment of this utility model, the turntable is symmetrically arranged about the center of the worktable, and the turntable and the worktable are rotatably connected.

[0011] As a preferred technical solution of this utility model, the clamping mechanism includes a turntable, a second push rod, a connecting rod, a clamping plate, and a fixing rod. The turntable is fixedly connected to the second push rod, and the front end of the second push rod is connected to the connecting rod. The front end of the connecting rod is hinged to the clamping plate. The tail end of the clamping plate is slidably connected to the fixing rod, and the fixing rod is fixedly connected to the surface of the turntable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This CNC four-axis zero-point positioning fixture is equipped with an adjustment mechanism. During the machining process, it is necessary to process the workpiece at different positions and angles. In use, the first motor drives the first lead screw to rotate. At this time, the first lead screw drives the moving plate to move inside the base, so that the workpiece above moves left and right. At the same time, during use, the second motor drives the second lead screw to rotate. At this time, the second lead screw drives the moving block to slide inside the moving plate, so that the moving block moves back and forth, so that the workpiece moves back and forth, allowing for processing at different positions on the workpiece surface. In addition, during use, the lifting mechanism controls the workpiece to move up and down. During the machining process, the rotating mechanism drives the turntable to rotate, so that the turntable rotates inside the worktable, so that the turntable drives the workpiece to rotate, facilitating the processing of the workpiece at different angles. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0014] Figure 2 This is a top view of the movable block structure of this utility model;

[0015] Figure 3 This is a side view of the second support rod of this utility model;

[0016] Figure 4 This is a schematic diagram of the turntable structure of this utility model.

[0017] In the diagram: 1. Base; 2. First motor; 3. First lead screw; 4. Moving plate; 5. Second motor; 6. Second lead screw; 7. Moving block; 8. First push rod; 9. First slider; 10. First support rod; 11. Second support rod; 12. Second slider; 13. Worktable; 14. Third motor; 15. First gear; 16. Second gear; 17. Rotating shaft; 18. Turntable; 19. Second push rod; 20. Connecting rod; 21. Clamping plate; 22. Fixed rod. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a CNC four-axis zero-point positioning fixture, including a base 1 and a worktable 13;

[0020] The base 1 is fixedly connected to the first motor 2, and the first motor 2 is connected to the first lead screw 3. The first lead screw 3 is threadedly connected to the moving plate 4. The moving plate 4 is slidably connected to the interior of the base 1, and the interior of the moving plate 4 is fixedly connected to the second motor 5. The second motor 5 is connected to the second lead screw 6, and the second lead screw 6 is threadedly connected to the moving block 7. The moving block 7 is slidably connected to the interior of the moving plate 4. The top of the moving block 7 is connected to the worktable 13 via a lifting mechanism. The lifting mechanism includes the moving block 7, the first push rod 8, the first slider 9, the first support rod 10, the second support rod 11, the second slider 12, and the worktable 13. The block 7 is fixedly connected to the first push rod 8, and the front end of the first push rod 8 is fixedly connected to the first slider 9. The first slider 9 is slidably connected to the inside of the moving block 7. The first slider 9 is hinged to the lower part of the first support rod 10, and the upper end of the first support rod 10 is hinged to the worktable 13. The first support rod 10 and the second support rod 11 are hinged together. The bottom of the second support rod 11 is hinged to the moving block 7, and the upper end of the second support rod 11 is hinged to the second slider 12. The second slider 12 is slidably connected to the inside of the worktable 13. The lifting mechanism is symmetrically arranged about the center of the moving block 7, and the upper end of the lifting mechanism is connected to the bottom two sides of the worktable 13 respectively.

[0021] During the processing, the workpiece needs to be processed at different positions and angles. In use, the first motor 2 drives the first lead screw 3 to rotate. At this time, the first lead screw 3 drives the moving plate 4 to move inside the base 1, so that the workpiece above moves left and right. At the same time, the second motor 5 drives the second lead screw 6 to rotate. At this time, the second lead screw 6 drives the moving block 7 to slide inside the moving plate 4, so that the moving block 7 moves back and forth, so that the workpiece moves back and forth, allowing processing at different positions on the workpiece surface. At the same time, the first push rod 8 drives the first slider 9 to move. At this time, the first slider 9 drives the first support rod 10 to adjust. At the same time, the first support rod 10 drives the second support rod 11 to adjust through the hinge shaft, so that the second support rod 11 drives the second slider 12 to slide inside the worktable 13 through the hinge shaft, so that the workpiece height is adjusted and the workpiece is controlled to move up and down.

[0022] The worktable 13 is internally connected to the turntable 18 via a rotating mechanism. The rotating mechanism includes the worktable 13, a third motor 14, a first gear 15, a second gear 16, a rotating shaft 17, and the turntable 18. The worktable 13 is fixedly connected to the third motor 14, and the third motor 14 is connected to the first gear 15. The first gear 15 meshes with the second gear 16. The second gear 16 is connected to the rotating shaft 17, and the rotating shaft 17 is fixedly connected to the turntable 18. The turntable 18 is centered on the worktable 13. The turntable 18 and the worktable 13 are symmetrically arranged and rotatably connected inside. The turntable 18 is equipped with a clamping mechanism, which includes the turntable 18, the second push rod 19, the connecting rod 20, the clamping plate 21, and the fixing rod 22. The turntable 18 is fixedly connected to the second push rod 19, and the front end of the second push rod 19 is connected to the connecting rod 20. The front end of the connecting rod 20 is hinged to the clamping plate 21, the tail end of the clamping plate 21 is slidably connected to the fixing rod 22, and the fixing rod 22 is fixedly connected to the surface of the turntable 18.

[0023] During use, the part to be processed is placed between the clamping plates 21 on both sides of the worktable 13. Then, the second push rod 19 is activated to move the connecting rod 20. The connecting rod 20 drives the clamping plate 21 to slide above the fixed rod 22 through the hinge shaft, thus fixing the workpiece with the clamping plates 21 on both sides. During the processing, the first gear 15 of the third motor 14 is activated to rotate. Since the first gear 15 and the second gear 16 mesh, the second gear 16 drives the rotating shaft 17 to rotate. At the same time, the rotating shaft 17 drives the turntable 18 to rotate, so that the turntable 18 rotates inside the worktable 13, causing the turntable 18 to rotate the workpiece, which facilitates processing the workpiece at different angles.

[0024] Working Principle: When using the CNC four-axis zero-point positioning fixture, the part to be machined is placed between the clamping plates 21 on both sides of the worktable 13. Then, the second push rod 19 is activated, driving the connecting rod 20 to move. This causes the connecting rod 20 to slide the clamping plates 21 above the fixed rod 22 via the hinge shaft, thus fixing the workpiece in place. During machining, different positions and angles of the workpiece need to be processed. The first motor 2 drives the first lead screw 3 to rotate, causing the first lead screw 3 to move the moving plate 4 inside the base 1, thus moving the workpiece left and right. Simultaneously, the second motor 5 drives the second lead screw 6 to rotate, causing the second lead screw 6 to slide the moving block 7 inside the moving plate 4, thus moving the moving block 7 back and forth, and consequently, moving the workpiece back and forth, allowing for machining of different positions on the workpiece surface. Simultaneously, during use, the first push rod 8 can drive the first slider 9 to move. At this time, the first slider 9 drives the first support rod 10 to adjust. At the same time, the first support rod 10 drives the second support rod 11 to adjust through the hinge shaft. This allows the second support rod 11 to drive the second slider 12 to slide inside the worktable 13 through the hinge shaft, thereby adjusting the workpiece height and controlling the workpiece to move up and down. During the processing, the third motor 14 is started to rotate the first gear 15. Since the first gear 15 and the second gear 16 mesh, the second gear 16 drives the rotating shaft 17 to rotate. At the same time, the rotating shaft 17 drives the turntable 18 to rotate, causing the turntable 18 to rotate inside the worktable 13. This allows the turntable 18 to drive the workpiece to rotate, facilitating the processing of the workpiece at different angles, thereby completing a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A CNC four-axis zero-point positioning fixture, comprising a base (1) and a worktable (13); Its features are: The base (1) is fixedly connected to the first motor (2), and the first motor (2) is connected to the first lead screw (3). The first lead screw (3) is threadedly connected to the moving plate (4). The moving plate (4) is slidably connected to the base (1). The moving plate (4) is fixedly connected to the second motor (5). The second motor (5) is connected to the second lead screw (6). The second lead screw (6) is threadedly connected to the moving block (7). The moving block (7) is slidably connected to the moving plate (4). The moving block (7) is connected to the worktable (13) above the lifting mechanism. The worktable (13) is connected to the turntable (18) inside the rotating mechanism. The turntable (18) is equipped with a clamping mechanism inside.

2. The CNC four-axis zero-point positioning fixture according to claim 1, characterized in that, The lifting mechanism includes a moving block (7), a first push rod (8), a first slider (9), a first support rod (10), a second support rod (11), a second slider (12), and a worktable (13). The moving block (7) is fixedly connected to the first push rod (8), and the front end of the first push rod (8) is fixedly connected to the first slider (9). The first slider (9) is slidably connected to the moving block (7). The first slider (9) is hinged to the lower part of the first support rod (10), and the upper end of the first support rod (10) is hinged to the worktable (13). The first support rod (10) is hinged to the second support rod (11), the bottom of the second support rod (11) is hinged to the moving block (7), and the upper end of the second support rod (11) is hinged to the second slider (12). The second slider (12) is slidably connected to the worktable (13).

3. The CNC four-axis zero-point positioning fixture according to claim 2, characterized in that, The lifting mechanism is symmetrically arranged about the center of the moving block (7), and the upper end of the lifting mechanism is connected to the bottom sides of the worktable (13).

4. The CNC four-axis zero-point positioning fixture according to claim 1, characterized in that, The rotating mechanism includes a worktable (13), a third motor (14), a first gear (15), a second gear (16), a rotating shaft (17), and a turntable (18). The worktable (13) is fixedly connected to the third motor (14), and the third motor (14) is connected to the first gear (15). The first gear (15) meshes with the second gear (16). The second gear (16) is connected to the rotating shaft (17), and the rotating shaft (17) is fixedly connected to the turntable (18).

5. A CNC four-axis zero-point positioning fixture according to claim 1, characterized in that, The turntable (18) is symmetrically arranged about the center of the worktable (13), and the turntable (18) and the worktable (13) are internally rotatably connected.

6. The CNC four-axis zero-point positioning fixture according to claim 1, characterized in that, The clamping mechanism includes a turntable (18), a second push rod (19), a connecting rod (20), a clamping plate (21), and a fixing rod (22). The turntable (18) is fixedly connected to the second push rod (19), and the front end of the second push rod (19) is connected to the connecting rod (20). The front end of the connecting rod (20) is hinged to the clamping plate (21). The tail end of the clamping plate (21) is slidably connected to the fixing rod (22), and the fixing rod (22) is fixedly connected to the surface of the turntable (18).

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