An easily adjustable plate-shaped workpiece positioning fixture

Abstract

This utility model discloses an easily adjustable positioning fixture for plate-shaped workpieces, relating to the field of auxiliary equipment technology for aerospace parts processing. It includes a mounting plate connected to a support plate via a pillar. A turntable is rotatably mounted on the support plate via a rotating shaft. A bidirectional cylinder is detachably mounted on the turntable. Positioning components are set at both ends of the cylinder. The positioning components include a rear connecting plate, a guide rod, a front connecting plate, a vertical plate, a pocket-shaped bracket, and rotatably mounted guide columns. A servo motor at the lower end of the support plate drives the turntable to rotate via gear transmission. The mounting plate has through slots one, two, and three adapted to the vertical plate, and has matrix-distributed bolt holes for mounting support columns and reference blocks. This fixture uses a bidirectional cylinder to drive the positioning components to extend and retract synchronously, and coordinates with the servo motor to adjust the positioning orientation. It can quickly achieve lateral positioning of rectangular workpieces and diagonal positioning of square workpieces. It can adapt to plate-shaped workpieces of different shapes without changing the fixture, effectively improving processing positioning efficiency and stability.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for aerospace parts processing, specifically a positioning fixture for plate-shaped workpieces that is easy to adjust. Background Technology

[0002] In the field of aerospace parts processing, the positioning accuracy of plate-shaped workpieces directly affects the processing quality. Traditional positioning fixtures have many limitations: most fixtures are designed for single-shape adaptation; machining rectangular workpieces requires dedicated positioning blocks, and switching to square workpieces requires replacing the entire fixture or reassembling the positioning components, resulting in poor versatility, long changeover times, and low production efficiency. Some adjustable fixtures can adjust the position of the positioning blocks via bolts, but the adjustment process relies on manual measurement, and the accuracy is greatly affected by operator experience. Furthermore, the lack of a stable guiding structure makes it easy for the positioning blocks to shift during movement, leading to repeated positioning errors. In addition, the power drive of existing fixtures is mostly single-cylinder, unidirectional push, making it difficult to achieve synchronous positioning on both sides. For symmetrical workpieces, uneven force on both sides can easily cause slight deformation of the workpiece. At the same time, workpiece supports mostly use fixed brackets, making it impossible to flexibly adjust the support points according to the workpiece thickness or center of gravity position. During processing, workpiece sway can easily affect accuracy. These problems are particularly prominent in the processing of small batches and various types of plate-shaped workpieces, restricting the improvement of production efficiency and processing quality. There is an urgent need for a plate-shaped workpiece positioning fixture that is highly versatile, easy to adjust, and has precise positioning.

[0003] Therefore, those skilled in the art have provided an easily adjustable positioning fixture for plate-shaped workpieces to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an easily adjustable positioning fixture for plate-shaped workpieces to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An easily adjustable plate-shaped workpiece positioning fixture includes an octagonal mounting plate. A support plate is fixedly connected to the lower end of the mounting plate via a pillar. A turntable is rotatably mounted on the upper end of the support plate via a rotating shaft. A bidirectional cylinder is detachably mounted on the upper end of the turntable via bolts. Positioning components are provided at both output ends of the bidirectional cylinder. The positioning components include a rear connecting plate fixedly connected to the piston rod ends of both ends of the bidirectional cylinder. A front connecting plate is fixedly connected to the front end of the rear connecting plate via guide rods. A vertical plate is fixedly connected to the upper end of the front connecting plate. A pocket-shaped bracket is fixedly connected to the upper end of the vertical plate. Guide posts are rotatably mounted on both upper ends of the front end of the pocket-shaped bracket. The front connecting plate and the vertical plate of the positioning component are integrally formed, and there are two guide rods.

[0007] As a further embodiment of this utility model: a driven gear is fixedly connected to the rotating shaft, and a driving gear is rotatably mounted on the upper end of the support plate, the driving gear meshing with the driven gear.

[0008] As a further embodiment of this utility model: a servo motor is fixedly installed at the lower end of the support plate, and the output shaft of the servo motor is fixedly connected to the drive gear.

[0009] As a further embodiment of this utility model: through groove one is symmetrically provided on the left and right sides of the mounting plate, through groove two is symmetrically provided on the upper left and lower right corners of the mounting plate, and through groove three is symmetrically provided on the lower left and upper right corners of the mounting plate.

[0010] As a further embodiment of this utility model: the through groove one, through groove two and through groove three are all adapted to the vertical plate in the positioning assembly; the upper end of the mounting plate is provided with a plurality of bolt holes, which are used to install support columns for supporting the plate-shaped workpiece.

[0011] As a further embodiment of this utility model: the bolt holes on the mounting plate are evenly distributed in a matrix, and the lower end of the support plate is fixedly connected to a support leg, which is fixedly mounted on the machine tool's worktable by bolts.

[0012] As a further improvement of this utility model: the pocket-shaped bracket includes a horizontal base plate and two side plates, and the front ends of the two side plates are rotatably mounted with guide posts via bearings.

[0013] As a further improvement of this utility model: the bidirectional cylinder has a double piston rod structure, the strokes of the piston rods at both ends are equal, and the bidirectional cylinder controls the air intake direction through a solenoid valve to realize the synchronous extension and retraction of the positioning components at both ends.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves efficient positioning and flexible adjustment of plate-shaped workpieces: the through slots one, two, and three on the octagonal mounting plate are adapted to the vertical plate of the positioning component, and in conjunction with the bidirectional cylinder driving the positioning component to extend and retract synchronously, it can achieve rapid positioning by abutting the two sides of a rectangular workpiece with the guide post, and can also perform diagonal positioning of a square workpiece by rotating the turntable 45° with the help of the servo motor. It can adapt to plate-shaped workpieces of different shapes without changing the tooling, greatly improving the versatility of the tooling; the piston rods at both ends of the bidirectional cylinder extend and retract synchronously with consistent stroke, ensuring smooth movement of the positioning component, and the rotation design of the guide post can reduce friction damage when in contact with the workpiece. This design improves positioning accuracy and workpiece surface protection. The servo motor drives the turntable to rotate precisely via gear transmission, offering high angle control accuracy and enabling rapid switching of positioning orientation. Combined with the use of reference blocks, it further shortens the changeover time for different workpieces and improves positioning efficiency. The matrix-distributed bolt holes on the mounting plate allow for flexible installation of support columns, adjusting the support position according to workpiece size and shape to ensure stability during processing. Furthermore, all components are detachably connected by bolts, facilitating future maintenance and component replacement. The overall structure is compact and easy to operate, improving positioning accuracy and efficiency while reducing manual labor intensity. It is suitable for various plate-shaped workpiece processing scenarios and has significant practical value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture for an easily adjustable plate-shaped workpiece.

[0016] Figure 2 This is a schematic diagram of the bottom structure of the support plate in a positioning fixture for an easily adjustable plate-shaped workpiece.

[0017] Figure 3 This is a side view of a positioning fixture for an easily adjustable plate-shaped workpiece.

[0018] Figure 4 This is a schematic diagram of the overall structure of the positioning component in a positioning fixture for an easily adjustable plate-shaped workpiece.

[0019] In the diagram: 1. Mounting plate; 2. Through slot one; 3. Through slot two; 4. Through slot three; 5. Bolt hole; 6. Support plate; 7. Support leg; 8. Servo motor; 9. Support column; 10. Rotating shaft; 11. Turntable; 12. Driven gear; 13. Drive gear; 14. Two-way cylinder; 15. Rear connecting plate; 16. Guide rod; 17. Front connecting plate; 18. Vertical plate; 19. Pocket-type bracket; 20. Guide column. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Reference Figures 1-4 This embodiment provides an easily adjustable plate-shaped workpiece positioning fixture, including a mounting plate 1, which is octagonal. The lower end of the mounting plate 1 is fixedly connected to a support plate 6 via a pillar 9. The upper end of the support plate 6 is rotatably mounted to a turntable 11 via a rotating shaft 10. A bidirectional cylinder 14 is detachably mounted to the upper end of the turntable 11 via bolts. Positioning components are provided at both ends of the output ends of the bidirectional cylinder 14. The positioning components include a rear connecting plate 15 fixedly connected to the piston rod ends of both ends of the bidirectional cylinder 14. The front end of the rear connecting plate 15 is fixedly connected to a front connecting plate 17 via a guide rod 16. A vertical plate 18 is fixedly connected to the upper end of the front connecting plate 17. A pocket-shaped bracket 19 is fixedly connected to the upper end of the vertical plate 18. Guide posts 20 are rotatably mounted on both upper ends of the front end of the pocket-shaped bracket 19. The front connecting plate 17 and the vertical plate 18 of the positioning components are integrally formed, and there are two guide rods 16.

[0023] Furthermore, the bolt holes 5 on the mounting plate 1 are evenly distributed in a matrix, and the lower end of the support plate 6 is fixedly connected to the support leg 7, which is fixedly installed on the machine tool's worktable by bolts.

[0024] Furthermore, the pocket-shaped bracket 19 includes a horizontal base plate and two side plates, and the front ends of the two side plates are rotatably mounted with guide posts 20 via bearings.

[0025] Furthermore, the bidirectional cylinder 14 has a double piston rod structure with equal strokes at both ends, and the bidirectional cylinder 14 controls the air intake direction through a solenoid valve to achieve synchronous extension and retraction of the positioning components at both ends.

[0026] Example 2

[0027] Reference Figures 1-4 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that a driven gear 12 is fixedly connected to the rotating shaft 10, a driving gear 13 is rotatably mounted on the upper end of the support plate 6, the driving gear 13 meshes with the driven gear 12, a servo motor 8 is fixedly mounted on the lower end of the support plate 6, and the output shaft of the servo motor 8 is fixedly connected to the driving gear 13.

[0028] Furthermore, through slots 1-2 are symmetrically provided on the left and right sides of the mounting plate 1, through slots 2-3 are symmetrically provided on the upper left and lower right corners of the mounting plate 1, and through slots 3-4 are symmetrically provided on the lower left and upper right corners of the mounting plate 1. Through slots 1-2, through slots 2-3 and through slots 3-4 are all adapted to the vertical plate 18 in the positioning assembly. Several bolt holes 5 are provided at the upper end of the mounting plate 1. The bolt holes 5 are used to install support columns for supporting the plate-shaped workpiece.

[0029] This invention achieves rapid positioning and adjustment of plate-shaped workpieces through structural fit and power drive: An octagonal mounting plate 1 is fixed above a support plate 6 by a pillar 9. When the servo motor 8 on the support plate 6 is started, its output shaft drives the drive gear 13 to rotate. The drive gear 13 meshes with the driven gear 12, causing the rotating shaft 10 to drive the turntable 11 and the bidirectional cylinder 14 detachably mounted on the turntable 11 to rotate synchronously, thereby adjusting the orientation of the positioning component. When processing a square workpiece, the servo motor 8 drives the turntable 11 to rotate 45 degrees clockwise or counterclockwise, so that the positioning component is at the diagonal position of the workpiece. At this time, the bidirectional cylinder 14 is started, and the piston rods at both ends retract synchronously, driving the rear connecting plate 15, guide rod 16, and front connecting plate 17 to move together. The vertical plate 18 moves with the front connecting plate 17 and along the mounting plate 1. The two guide posts 20 at the front end of the pocket-shaped bracket 19 pass through the through slot 2 or through slot 3 or through slot 4, ultimately allowing the two guide posts 20 at the front end of the square workpiece to abut against the two opposite sides of the diagonal, achieving diagonal positioning. When processing a rectangular workpiece, the reference block is first installed through the bolt holes 5 on the mounting plate 1, and one side of the rectangular workpiece is placed against the reference block. Then, the bidirectional cylinder 14 is activated to drive the positioning assembly to retract, and the vertical plate 18 passes through through slot 2, allowing the guide posts 20 to abut against the left and right sides of the rectangular workpiece, cooperating with the reference block to complete the positioning. At the same time, the bolt holes 5 on the mounting plate 1 can be used to install support columns to support the plate-shaped workpiece, ensuring that the workpiece remains stable during processing. The servo motor 8 ensures the accuracy of the rotation angle. Through the synergy of the mechanical structure and the power drive, the rapid and accurate positioning and adjustment of plate-shaped workpieces of different shapes are achieved.

[0030] 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.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plate-like workpiece positioning tool facilitating adjustment, comprising a mounting plate (1), characterized in that, The mounting plate (1) is octagonal. The lower end of the mounting plate (1) is fixedly connected to a support plate (6) via a pillar (9). The upper end of the support plate (6) is rotatably mounted with a turntable (11) via a rotating shaft (10). The upper end of the turntable (11) is detachably mounted with a bidirectional cylinder (14) via bolts. The output ends of both ends of the bidirectional cylinder (14) are provided with positioning components. The positioning components include a rear connecting plate (15) fixedly connected to the piston rod ends of both ends of the bidirectional cylinder (14). The front end of the rear connecting plate (15) is fixedly connected to the front connecting plate (17) via the guide rod (16). The upper end of the front connecting plate (17) is fixedly connected to the vertical plate (18). The upper end of the vertical plate (18) is fixedly connected to the pocket-shaped bracket (19). The upper ends of both sides of the front end of the pocket-shaped bracket (19) are rotatably installed with guide posts (20). The front connecting plate (17) and the vertical plate (18) of the positioning assembly are integrally formed, and there are two guide rods (16).

2. The positioning tool for a plate-shaped workpiece according to claim 1, wherein A driven gear (12) is fixedly connected to the rotating shaft (10), and a driving gear (13) is rotatably installed on the upper end of the support plate (6). The driving gear (13) meshes with the driven gear (12).

3. The positioning tool for a plate-shaped workpiece according to claim 2, wherein A servo motor (8) is fixedly installed at the lower end of the support plate (6), and the output shaft of the servo motor (8) is fixedly connected to the drive gear (13).

4. The positioning tool of claim 1, wherein, The mounting plate (1) has through slots 1 (2) symmetrically opened on the left and right sides, through slots 2 (3) symmetrically opened on the upper left and lower right corners, and through slots 3 (4) symmetrically opened on the lower left and upper right corners.

5. The positioning tool for a plate-shaped workpiece according to claim 4, wherein The through slots 1 (2), 2 (3) and 3 (4) are all adapted to the vertical plate (18) in the positioning assembly; the upper end of the mounting plate (1) is provided with several bolt holes (5), and the bolt holes (5) are used to install support columns for supporting plate-shaped workpieces.

6. A plate-shaped work positioning tool according to claim 5, wherein The bolt holes (5) on the mounting plate (1) are evenly distributed in a matrix. The lower end of the support plate (6) is fixedly connected to the support leg (7), which is fixedly installed on the machine tool workbench by bolts.

7. The positioning tool of claim 1, wherein, The pocket-shaped bracket (19) includes a horizontal base plate and two side plates, and the front ends of the two side plates are rotatably mounted with guide posts (20) via bearings.

8. The positioning tool of claim 1, wherein, The bidirectional cylinder (14) has a double piston rod structure with equal strokes at both ends. The bidirectional cylinder (14) controls the air intake direction through a solenoid valve to achieve synchronous extension and retraction of the positioning components at both ends.

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