Nut positioning mechanism of riveting machine

Abstract

The utility model discloses a riveting machine nut positioning mechanism which comprises a bottom plate, supporting plates are arranged on the two sides of the upper portion of the bottom plate, the upper portions of the two supporting plates are fixedly connected through a fixing plate, six mounting plates are arranged on the upper portion of the fixing plate, and hydraulic cylinders are arranged on the sides, away from the fixing plate, of the mounting plates. The stroke end of the hydraulic cylinder penetrates through the mounting plate and is fixedly connected with the clamping plate, a motor is arranged on one side of the upper portion of the bottom plate, a rotating shaft of the motor is fixedly connected with a first bevel gear, a second bevel gear meshed with the first bevel gear is arranged on the threaded rod, and a movable plate is arranged on the threaded rod. Four connecting rods arranged in a matrix mode are arranged above the movable plate, and the upper portions of the connecting rods penetrate through the fixed plate to be fixedly connected with the push plate. The positioning mechanism is high in universality and good in clamping stability, a machined workpiece can be automatically ejected out, the nut machining efficiency is improved, and meanwhile the nut machining precision is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, in particular to a nut positioning mechanism for a riveting and punching machine. Background Art

[0002] A nut, also known as a screw nut, is a fixing tool with a hole in the center and internal threads on the inner side of the hole. Nuts are often used in combination with screws of appropriate sizes to fix relevant joint parts. During the processing of nuts, a riveting and punching machine is required for corresponding processing. During this process, the stability of the nut needs to be ensured. Currently, the nut positioning mechanism generally positions from both side surfaces. When processing, the workpiece is not stable enough. Moreover, when the current positioning mechanism fixes nuts of different shapes and sizes, it is difficult to fully match the shapes and sizes of the corresponding nuts, thereby reducing the fixing efficiency. For this reason, we propose a nut positioning mechanism for a riveting and punching machine. Summary of the Utility Model

[0003] In order to solve the above problems, the utility model provides a nut positioning mechanism for a riveting and punching machine. The utility model solves the problems that the current nut positioning mechanism generally positions from both side surfaces, the workpiece is not stable enough during processing, and when the current positioning mechanism fixes nuts of different shapes and sizes, it is difficult to fully match the shapes and sizes of the corresponding nuts, thereby reducing the fixing efficiency.

[0004] A nut positioning mechanism for a riveting and punching machine in the utility model includes a bottom plate. On both sides above the bottom plate, there are support plates. The two support plates are fixedly connected by a fixing plate above. Above the fixing plate, there are six mounting plates arranged in a matrix. On the side of the mounting plate away from the fixing plate, there is a hydraulic cylinder. The stroke end of the hydraulic cylinder penetrates through the mounting plate and is fixedly connected with a clamping plate. The fixing plate is provided with a groove between the six mounting plates. A push plate is arranged in the groove. On one side above the bottom plate, there is a motor. The rotating shaft of the motor is fixedly connected with a first bevel gear. In the middle above the bottom plate, there is a threaded rod. A second bevel gear meshing with the first bevel gear is arranged on the threaded rod. An active plate is arranged on the threaded rod. Above the active plate, there are four connecting rods arranged in a matrix. The connecting rods penetrate through the fixing plate above and are fixedly connected with the push plate.

[0005] In the above solution, a rubber pad is arranged on the side of the clamping plate away from the mounting plate.

[0006] In the above solution, sliders are arranged on both sides below the clamping plate, and guide rails matching the sliders are arranged on the fixing plate.

[0007] In the above solution, mounting holes are arranged at both ends of both sides of the bottom plate.

[0008] In the above solution, the motor is a servo motor.

[0009] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a nut positioning mechanism for a riveting and punching machine. Six clamping plates can clamp the nut from six faces of the nut. Through clamping in multiple directions, the positioning stability of the positioning mechanism for the nut is effectively improved. When the threaded rod rotates, the movable plate on the threaded rod can reciprocate vertically on the threaded rod. Through the transmission of the connecting rod, the pushing plate can push out the processed nut from the inside of the mounting plate. This kind of positioning mechanism has a simple structure, is convenient to operate, has high versatility, good clamping stability, and the processed workpiece can be automatically ejected. While improving the processing efficiency of the nut, the processing accuracy of the nut is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] Figure 2 is a top view of the present utility model;

[0013] Figure 3 is a cross-sectional view of the present utility model;

[0014] Figure 4 is a schematic structural view of part A of the present utility model.

[0015] In the figure: 1, bottom plate; 2, support plate; 3, fixed plate; 4, mounting plate

[0016] 5, hydraulic cylinder; 6, clamping plate; 7, groove; 8, pushing plate

[0017] 9, motor; 10, first bevel gear; 11, threaded rod; 12, second bevel gear

[0018] 13, movable plate; 14, connecting rod; 15, rubber pad; 16, slider

[0019] 17, guide rail; 18, mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will further describe the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0021] AsFigures 1-4 As shown in the figure, the utility model is a nut positioning mechanism for a riveting and punching machine, including a bottom plate 1. On both sides above the bottom plate 1, there are support plates 2. The two support plates 2 are fixedly connected above by a fixing plate 3. Above the fixing plate 3, there are six mounting plates 4 arranged in a matrix. On the side of the mounting plate 4 away from the fixing plate 3, there is a hydraulic cylinder 5. The stroke end of the hydraulic cylinder 5 penetrates through the mounting plate 4 and is fixedly connected to a clamping plate 6. When the hydraulic cylinder 5 works, the hydraulic cylinder 5 pushes the clamping plate 6 to move horizontally. When the clamping plate 6 moves, the six clamping plates 6 can clamp from six faces of the nut. The distance between the clamping plates 6 is adjustable, so that the clamping plates 6 can clamp nuts of different sizes. There is a groove 7 in the fixing plate 3 between the six mounting plates 4. In the groove 7, there is a push plate 8. On one side above the bottom plate 1, there is a motor 9. The rotating shaft of the motor 9 is fixedly connected to a first bevel gear 10. In the middle above the bottom plate 1, there is a threaded rod 11. The two ends of the threaded rod 11 are respectively movably connected to the bottom plate 1 and the fixing plate 3. On the threaded rod 11, there is a second bevel gear 12 meshing with the first bevel gear 10. On the threaded rod 11, there is a movable plate 13. The movable plate 13 is threadedly connected to the threaded rod 11. Above the movable plate 13, there are four connecting rods 14 arranged in a matrix. The upper ends of the connecting rods 14 penetrate through the fixing plate 3 and are fixedly connected to the push plate 8. When the motor 9 works, the motor 9 drives the first bevel gear 10 to rotate. The second bevel gear 12 meshing with the first bevel gear 10 starts to rotate under the drive of the first bevel gear 10. Driven by the second bevel gear 12, the threaded rod 11 also rotates. When the threaded rod 11 rotates, the movable plate 13 on the threaded rod 11 can move vertically back and forth on the threaded rod 11. Through the transmission of the connecting rods 14, the push plate 8 can push the processed nuts out of the mounting plate 4.

[0022] On the side of the clamping plate 6 away from the mounting plate 4, there is a rubber pad 15. The rubber pad 15 increases the friction between the clamping plate 6 and the nut, thus effectively improving the stability of the clamping of the nut by the clamping plate 6.

[0023] On both sides below the clamping plate 6, there are sliders 16. On the fixing plate 3, there are guide rails 17 matching the sliders 16. The sliders 16 can slide on the guide rails 17. Through the mutual cooperation between the sliders 16 and the guide rails 17, the moving stability of the clamping plate 6 is effectively improved.

[0024] On both ends of both sides of the bottom plate 1, there are mounting holes 18. Through the mounting holes 18, the positioning mechanism can be fixedly installed.

[0025] The motor 9 is a servo motor.

[0026] Specifically, in the present utility model, when the hydraulic cylinder 5 is working, the hydraulic cylinder 5 pushes the clamping plate 6 to move horizontally. When the clamping plate 6 moves, the six clamping plates 6 can clamp from six faces of the nut. Through clamping in multiple directions, the positioning stability of the positioning mechanism for the nut is effectively improved. When the motor 9 is working, the motor 9 drives the first bevel gear 10 to rotate. The second bevel gear 12 meshing with the first bevel gear 10 starts to rotate under the drive of the first bevel gear 10. The threaded rod 11 also rotates accordingly under the drive of the second bevel gear 12. When the threaded rod 11 rotates, the movable plate 13 on the threaded rod 11 can move vertically in a reciprocating manner on the threaded rod 11. Through the transmission of the connecting rod 14, the push plate 8 can push the processed nut out of the inside of the mounting plate 4.

[0027] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A nut positioning mechanism for a riveting and punching machine, comprising a bottom plate (1), characterized in that, On both sides above the bottom plate (1), there are support plates (2) provided. The two support plates (2) are fixedly connected above by a fixing plate (3). Above the fixing plate (3), there are six mounting plates (4) arranged in a matrix. On the side of the mounting plate (4) away from the fixing plate (3), there is a hydraulic cylinder (5). The stroke end of the hydraulic cylinder (5) penetrates through the mounting plate (4) and is fixedly connected to a clamping plate (6). Inside the groove (7) provided between the six mounting plates (4) on the fixing plate (3), there is a push plate (8). On one side above the bottom plate (1), there is a motor (9). The rotating shaft of the motor (9) is fixedly connected to a first bevel gear (10). In the middle above the bottom plate (1), there is a threaded rod (11). On the threaded rod (11), there is a second bevel gear (12) meshing with the first bevel gear (10). On the threaded rod (11), there is a movable plate (13). Above the movable plate (13), there are four connecting rods (14) arranged in a matrix. The upper part of the connecting rod (14) penetrates through the fixing plate (3) and is fixedly connected to the push plate (8).

2. The nut positioning mechanism of a riveting and punching machine according to claim 1, characterized in that, On the side of the clamping plate (6) away from the mounting plate (4), there is a rubber pad (15).

3. The nut positioning mechanism of a riveting and punching machine according to claim 1, characterized in that, On both sides below the clamping plate (6), there are sliders (16) provided. On the fixing plate (3), there are guide rails (17) matching the sliders (16).

4. A nut positioning mechanism of a riveting and punching machine according to claim 1, characterized in that, At both ends of the bottom plate (1), there are mounting holes (18) provided.

5. A nut positioning mechanism of a riveting and punching machine according to claim 1, characterized in that, The motor (9) is a servo motor.

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