Multi-station adjustable drilling fixture

Abstract

The utility model relates to the technical field of drilling fixture, and disclose a kind of multi-station adjustable drilling fixture, including installation bottom plate, the top surface of installation bottom plate is rotatably installed with rotary table, the bottom surface of installation bottom plate is provided with the drive assembly for the power for rotary table rotation, the top surface of installation bottom plate is fixedly installed with cam, by the setting of fixed component, under the reset force of first spring, push movable block and insert block move, so that insert block inserts inside the insertion hole, positioning is carried out to work position supporting plate, the required work station quantity can be flexibly adjusted, by the setting of drive component, drive motor drives main gear rotation, under the meshing transmission of main gear and ring gear, rotary table is rotated, drive roller to rotate with cam as center, when roller moves to the concave surface of cam, workpiece can be fed, when roller moves from the concave surface of cam, workpiece can be automatically clamped and fixed, facilitate subsequent drilling operation.

Description

Technical Field

[0001] This utility model relates to the field of drilling fixture technology, specifically a multi-position adjustable drilling fixture. Background Technology

[0002] In the machining process, metal cutting processes such as milling and drilling are the most common basic machining methods. To ensure the smooth implementation of these processes, corresponding specialized machining equipment is essential. Taking drilling as an example, before starting the drilling operation, effective measures must be taken to firmly fix the workpiece to be machined. This is because if the workpiece is not securely fixed during the high-speed rotation of the drill bit, displacement or vibration can easily occur, leading to deviations in the machining position and severely affecting machining accuracy. Therefore, modern machining centers are typically equipped with various types of specialized fixtures. Appropriate fixtures are selected based on the workpiece shape and machining requirements to ensure the workpiece remains stably positioned throughout the machining process, meeting the machining needs under different working conditions. These fixtures not only improve machining accuracy but also effectively ensure operational safety, making them indispensable auxiliary equipment in machining.

[0003] A multi-station drilling fixture, disclosed in CN221538974U, includes a turntable rotatably mounted on the worktable of a multi-station drilling machine. A mounting ring, coaxial with the turntable, is fixed to the top of the turntable by screws. The mounting ring has several circumferentially arranged positioning holes on its top. A vertical ring, coaxial with the mounting ring, is also fixed to the top of the mounting ring. This drilling fixture allows for flexible adjustment of the required number of stations by rotating screws to add or remove excess U-shaped sliding frames, workpiece trays, and clamping plates. The required number of U-shaped sliding frames can then be rotated to form a circumferential array, allowing positioning pins to be inserted into the positioning holes for fixation. However, in actual use, manual rotation of the handwheel is required. This causes two sliders located on opposite ends of the threaded sections of the bidirectional screw to move two clamping plates closer or further apart to clamp the workpiece on the workpiece tray. The presence of multiple sets of workpiece trays and handwheels makes loading and unloading workpieces for drilling inconvenient. Therefore, this utility model provides a multi-station adjustable drilling fixture to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-station adjustable drilling fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-station adjustable drilling fixture includes a mounting base plate, a turntable rotatably mounted on the top surface of the mounting base plate, a drive assembly for providing power for the rotation of the turntable on the bottom surface of the mounting base plate, a cam fixedly mounted on the top surface of the mounting base plate, a slide rail fixedly mounted on the top surface of the turntable, a station support plate mounted on the top surface of the slide rail, a fixing assembly for positioning the station support plate inside the turntable, a first clamping plate slidably mounted on the top surface of the station support plate, an adjusting assembly for adjusting the position of the first clamping plate inside the station support plate, a second clamping plate movably mounted on the top surface of the station support plate, and a linkage assembly for driving the second clamping plate to clamp the workpiece on the surface of the station support plate.

[0006] As a further embodiment of this utility model, the drive assembly includes a rotating shaft rotatably mounted inside the mounting base plate, a drive motor fixedly mounted at the bottom end of the rotating shaft, and a main gear fixedly mounted at the top end of the rotating shaft.

[0007] As a further embodiment of this utility model, a gear groove is provided on the bottom surface of the turntable, and an annular tooth is fixedly installed inside the gear groove, with the main gear meshing with the annular tooth.

[0008] As a further embodiment of this utility model, the fixing component includes multiple sets of spring grooves formed inside the turntable. A pull rod is slidably installed inside the spring groove. A movable block is fixedly installed at one end of the pull rod. A first spring is fixedly installed on one side of the movable block. The first spring is sleeved on the surface of the pull rod. An insert block is fixedly installed on the side of the movable block away from the pull rod. A positioning hole is formed on the top surface of the turntable. A positioning plate is fixedly installed on the bottom surface of the workstation support plate. An insertion hole is formed on the surface of the positioning plate. The positioning plate and the positioning hole are correspondingly arranged. The insertion hole and the insert block are correspondingly arranged.

[0009] As a further embodiment of this utility model, the adjusting component includes a lead screw rotatably installed inside the workstation tray, a knob fixedly installed at one end of the lead screw, a threaded block threaded onto the surface of the lead screw, and the top surface of the threaded block fixedly connected to the first clamping plate.

[0010] As a further embodiment of this utility model, the linkage component includes a connecting rod slidably installed inside the workstation tray. A mounting bracket is fixedly installed at the end of the connecting rod away from the workstation tray. A second spring is fixedly installed between the mounting bracket and the workstation tray. The second spring is sleeved on the surface of the connecting rod. A roller is rotatably installed on the surface of the mounting bracket. The roller is fitted against the surface of the cam.

[0011] As a further embodiment of this utility model, a slider is fixedly installed on the bottom surface of the second clamping plate, and the connecting rod is fixedly connected to the slider.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. When this utility model is used, the fixed component is set up, and under the action of the reset force of the first spring, the movable block and the insert block are pushed to move, so that the insert block is inserted into the interior of the insertion hole, and the workstation tray is positioned, and the required number of workstations can be flexibly adjusted.

[0013] 2. When this utility model is used, the drive component is set up so that the drive motor drives the main gear to rotate. Under the meshing transmission action of the main gear and the ring gear, the turntable rotates and drives the roller to rotate around the cam. When the roller moves to the concave surface of the cam, the workpiece can be loaded and unloaded. When the roller moves out of the concave surface of the cam, the workpiece can be automatically clamped and fixed, which facilitates subsequent drilling operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a multi-station adjustable drilling fixture.

[0015] Figure 2 This is a bottom view of the mounting base plate in a multi-position adjustable drilling fixture.

[0016] Figure 3 This is a schematic diagram of the structure for mounting a base plate in a multi-station adjustable drilling fixture.

[0017] Figure 4 This is a schematic diagram of a multi-position adjustable drilling fixture turntable.

[0018] Figure 5 This is a bottom view of a multi-position adjustable drilling fixture turntable.

[0019] Figure 6 This is a cross-sectional view of a multi-position adjustable drilling fixture turntable.

[0020] Figure 7 This is a cross-sectional view of the workstation support plate in a multi-station adjustable drilling fixture.

[0021] In the diagram: 1. Mounting base plate; 2. Turntable; 3. Limiting block; 4. Limiting groove; 5. Rotating shaft; 6. Drive motor; 7. Main gear; 8. Gear groove; 9. Ring gear; 10. Cam; 11. Slide rail; 12. Workstation support plate; 13. Limiting plate; 14. Spring groove; 15. Pull rod; 16. Movable block; 17. First spring; 18. Insert block; 19. Positioning hole; 20. Positioning plate; 21. Insertion hole; 22. First clamping plate; 23. Lead screw; 24. Knob; 25. Threaded block; 26. Strip groove; 27. Second clamping plate; 28. Slider; 29. ​​Slide groove; 30. Connecting rod; 31. Mounting bracket; 32. Second spring; 33. Roller. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 7 In this embodiment of the present invention, a multi-position adjustable drilling fixture includes a mounting base plate 1. A turntable 2 is rotatably mounted on the top surface of the mounting base plate 1. To ensure that the turntable 2 can rotate stably on the top surface of the mounting base plate 1, a limiting block 3 is fixedly mounted on the bottom surface of the turntable 2. A limiting groove 4 is formed on the top surface of the mounting base plate 1, and the limiting block 3 is slidably mounted inside the limiting groove 4. A drive assembly for providing power for the rotation of the turntable 2 is provided on the bottom surface of the mounting base plate 1. A cam 10 is fixedly mounted on the top surface of the mounting base plate 1, and a slide rail 11 is fixedly mounted on the top surface of the turntable 2. The workstation tray 12 is mounted on the top surface. A limiting plate 13 is fixedly mounted on the bottom surface of the workstation tray 12. Two sets of limiting plates 13 are provided. The limiting plates 13 are located on both sides of the slide rail 11. The turntable 2 is equipped with a fixing component for positioning the workstation tray 12. A first clamping plate 22 is slidably mounted on the top surface of the workstation tray 12. An adjusting component for adjusting the position of the first clamping plate 22 is provided inside the workstation tray 12. A second clamping plate 27 is movably mounted on the top surface of the workstation tray 12. A linkage component for driving the second clamping plate 27 to clamp the workpiece is provided on the surface of the workstation tray 12.

[0024] The drive assembly includes a rotating shaft 5 rotatably mounted inside the mounting base plate 1. A drive motor 6 is fixedly mounted at the bottom end of the rotating shaft 5 and is fixedly connected to an external drilling device. A main gear 7 is fixedly mounted at the top end of the rotating shaft 5. A gear groove 8 is opened on the bottom surface of the turntable 2. A ring gear 9 is fixedly mounted inside the gear groove 8. The main gear 7 meshes with the ring gear 9. The drive motor 6 drives the main gear 7 to rotate. Under the meshing transmission action of the main gear 7 and the ring gear 9, the turntable 2 rotates, which can drive the workstation tray 12 to rotate and adjust the position of each workstation.

[0025] like Figure 6As shown, the fixing assembly includes multiple sets of spring grooves 14 inside the turntable 2. A pull rod 15 is slidably installed inside the spring groove 14. A movable block 16 is fixedly installed at one end of the pull rod 15. A first spring 17 is fixedly installed on one side of the movable block 16 and is sleeved on the surface of the pull rod 15. An insert block 18 is fixedly installed on the side of the movable block 16 away from the pull rod 15. A positioning hole 19 is opened on the top surface of the turntable 2. A positioning plate 20 is fixedly installed on the bottom surface of the workstation tray 12. Multiple sets of positioning holes 19 and positioning plates 20 are provided. An insert hole 21 is opened on the surface of the positioning plate 20. The positioning plate 20 and the positioning hole 19 are arranged correspondingly, and the insert hole 21 and the insert block 18 are arranged correspondingly. By setting the fixing assembly, the workstation tray 12 can be fixed at different positions on the slide rail 11, and the required number of workstations can be flexibly adjusted, making it more convenient to use.

[0026] In practice, it is often necessary to drill holes in workpieces of different sizes and specifications, such as... Figure 7 As shown, the adjustment assembly includes a lead screw 23 rotatably mounted inside the workstation tray 12. A knob 24 is fixedly mounted on one end of the lead screw 23. A threaded block 25 is threaded onto the surface of the lead screw 23. To ensure that the threaded block 25 can move stably inside the workstation tray 12, a strip groove 26 is provided on the top surface of the workstation tray 12. The threaded block 25 is slidably mounted inside the strip groove 26. The top surface of the threaded block 25 is fixedly connected to the first clamping plate 22. By adjusting the assembly, rotating the knob 24 causes the lead screw 23 to rotate, which in turn moves the threaded block 25 and moves the first clamping plate 22, thus adjusting the position of the first clamping plate 22 to facilitate clamping workpieces of different sizes.

[0027] like Figure 1 and Figure 7 As shown, the linkage component includes a connecting rod 30 that is slidably installed inside the workstation tray 12. A mounting bracket 31 is fixedly installed at one end of the connecting rod 30 away from the workstation tray 12. A second spring 32 is fixedly installed between the mounting bracket 31 and the workstation tray 12. The second spring 32 is sleeved on the surface of the connecting rod 30. A roller 33 is rotatably installed on the surface of the mounting bracket 31. The roller 33 is fitted to the surface of the cam 10.

[0028] A slider 28 is fixedly installed on the bottom surface of the second clamping plate 27, and the connecting rod 30 is fixedly connected to the slider 28. In order for the second clamping plate 27 to slide back and forth stably on the top surface of the station tray 12, a groove 29 is provided on the top surface of the station tray 12. The slider 28 is slidably installed inside the groove 29. Through the setting of the second spring 32, the mounting frame 31 can be pushed to move, so that the roller 33 is always in contact with the surface of the cam 10. When drilling the workpiece, a set of rollers 33 on the station tray 12 moves to the concave surface of the cam 10, so that the station tray 12 can be loaded and unloaded. After the workpiece is placed on this station tray 12, the drive assembly drives the turntable 2 to rotate, so that the station tray 12 and the rollers 33 on it move out of the concave surface of the cam 10, which will push the connecting rod 30 to move, so that the second clamping plate 27 is close to the first clamping plate 22, so that the workpiece can be clamped and fixed, which facilitates the subsequent drilling operation.

[0029] The working principle of this utility model is as follows: During use, the base plate 1 is fixed by the mounting holes. Pulling the pull rod 15 outward moves the movable block 16, compressing the first spring 17 and moving the insert block 18. The insert block 18 moves from the inside of the positioning hole 19 into the spring groove 14. The operator places the workstation tray 12 above the slide rail 11, with the two sets of limiting plates 13 positioned on both sides of the slide rail 11. Simultaneously, the positioning plate 20 is inserted into the positioning hole 19. The pull rod 15 is released, and under the restoring force of the first spring 17, the movable block 16 is pushed, moving the insert block 18. The insert block 18 is then inserted into the insertion hole 21, positioning the workstation tray 12. The installation and disassembly of the workstation tray 12 are convenient, facilitating the adjustment of the number of fixture stations. After adjusting the number of fixture stations to a suitable level, the workpiece to be drilled is placed on the workstation tray 12. The drive motor 6 is started, and the output of the drive motor 6 rotates, driving the rotating shaft 5 to rotate, which in turn drives the main gear 7 to rotate. The main gear 7 meshes with the ring gear 9, which in turn drives the ring gear 9 to rotate, causing the turntable 2 to rotate. This, in turn, drives the workstation tray 12, which is fixedly mounted on the slide rail 11, to rotate. As the workstation tray 12 rotates, the roller 33 rotates around the cam 10. When the roller 33 rotates along the outermost edge of the cam 10, the first clamping plate 22 and the second clamping plate 27 clamp the workpiece on the workstation tray 12, facilitating drilling operations on the workpiece. When the roller 33 rotates to the groove of the cam 10... The second spring 32 pushes the mounting bracket 31 to move, so that the roller 33 fits against the concave surface of the cam 10, thereby driving the connecting rod 30 to move, causing the slider 28 to move, and the second clamping plate 27 to move away from the first clamping plate 22, which makes it easier to place or pick up the workpiece. When clamping and drilling other types of workpieces, rotate the knob 24 to drive the lead screw 23 to rotate, causing the threaded block 25 to move, which in turn drives the first clamping plate 22 to move. By adjusting the position of the first clamping plate 22, workpieces of different sizes can be clamped.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-position adjustable drilling fixture, comprising a mounting base plate (1), characterized in that, A turntable (2) is rotatably mounted on the top surface of the mounting base plate (1). A drive assembly for providing power for the rotation of the turntable (2) is provided on the bottom surface of the mounting base plate (1). A cam (10) is fixedly mounted on the top surface of the mounting base plate (1). A slide rail (11) is fixedly mounted on the top surface of the turntable (2). A workstation tray (12) is mounted on the top surface of the slide rail (11). A fixing assembly for positioning the workstation tray (12) is provided inside the turntable (2). A first clamping plate (22) is slidably mounted on the top surface of the workstation tray (12). An adjustment assembly for adjusting the position of the first clamping plate (22) is provided inside the workstation tray (12). A second clamping plate (27) is movably mounted on the top surface of the workstation tray (12). A linkage assembly for driving the second clamping plate (27) to clamp the workpiece is provided on the surface of the workstation tray (12).

2. The multi-station adjustable drilling fixture according to claim 1, characterized in that, The drive assembly includes a rotating shaft (5) rotatably mounted inside the mounting base plate (1), a drive motor (6) is fixedly mounted at the bottom end of the rotating shaft (5), and a main gear (7) is fixedly mounted at the top end of the rotating shaft (5).

3. A multi-station adjustable drilling fixture according to claim 2, characterized in that, The bottom surface of the turntable (2) is provided with a gear groove (8), and a ring tooth (9) is fixedly installed inside the gear groove (8). The main gear (7) meshes with the ring tooth (9).

4. The multi-station adjustable drilling fixture according to claim 1, characterized in that, The fixing component includes multiple sets of spring grooves (14) opened inside the turntable (2). A pull rod (15) is slidably installed inside the spring groove (14). A movable block (16) is fixedly installed at one end of the pull rod (15). A first spring (17) is fixedly installed on one side of the movable block (16). The first spring (17) is sleeved on the surface of the pull rod (15). An insert block (18) is fixedly installed on the side of the movable block (16) away from the pull rod (15). A positioning hole (19) is opened on the top surface of the turntable (2). A positioning plate (20) is fixedly installed on the bottom surface of the workstation support plate (12). An insertion hole (21) is opened on the surface of the positioning plate (20). The positioning plate (20) and the positioning hole (19) are correspondingly arranged. The insertion hole (21) and the insert block (18) are correspondingly arranged.

5. A multi-station adjustable drilling fixture according to claim 1, characterized in that, The adjustment assembly includes a lead screw (23) rotatably installed inside the workstation tray (12), a knob (24) is fixedly installed at one end of the lead screw (23), and a threaded block (25) is threadedly installed on the surface of the lead screw (23), and the top surface of the threaded block (25) is fixedly connected to the first clamping plate (22).

6. A multi-position adjustable drilling fixture according to claim 1, characterized in that, The linkage component includes a connecting rod (30) that is slidably installed inside the workstation tray (12). A mounting bracket (31) is fixedly installed at one end of the connecting rod (30) away from the workstation tray (12). A second spring (32) is fixedly installed between the mounting bracket (31) and the workstation tray (12). The second spring (32) is sleeved on the surface of the connecting rod (30). A roller (33) is rotatably installed on the surface of the mounting bracket (31). The roller (33) is in contact with the surface of the cam (10).

7. A multi-station adjustable drilling fixture according to claim 6, characterized in that, A slider (28) is fixedly installed on the bottom surface of the second clamping plate (27), and the connecting rod (30) is fixedly connected to the slider (28).

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