Positioning and clamping mechanism for electrical equipment manufacturing

Abstract

The utility model discloses a positioning and clamping mechanism for electrical equipment manufacturing, including bottom plate, workstation and work piece, the bottom of workstation is fixedly connected through support rod with the top of bottom plate, and the top of workstation is provided with support frame, and the top of support frame is rotatably connected with clamping mechanism, the clamping mechanism includes movable clamping piece and placing table, and movable clamping piece sets up in the top of support frame, the utility model discloses utilize work piece self -gravity drive clamping mechanism (movable clamping piece), and when work piece presses down placing table, through the cooperation of driving rod and limit slot, force V type clamping rod to rotate with side turning block as fulcrum, realize the synchronous shrinkage of multiple claws to the inside, and the steady clamping of automatic adaptation different size / shape work piece, do not need manual regulation, and V type clamping rod distributes with annular array, ensure that the clamping force is evenly applied to the workpiece circumferential, prevent deflection or deformation, especially suitable for cylindrical / special-shaped electrical components.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment manufacturing equipment technology, and in particular to a positioning and clamping mechanism for electrical equipment manufacturing. Background Technology

[0002] In the manufacturing process of electrical equipment (such as transformers, switch cabinets, distribution boxes, control cabinets, etc.), a large number of precision parts (such as coils, insulators, conductors, housing panels, etc.) are involved in assembly, welding, and testing. These processes usually require the use of specific positioning and clamping mechanisms (tooling fixtures) to ensure that the equipment as a whole maintains a precise and stable position and posture during processing or assembly. Common positioning and clamping mechanisms in the existing technology include manual clamps (such as vises, C-clamps, quick clamps), pneumatic / hydraulic clamps, and special tooling fixtures designed for specific parts. These mechanisms meet the positioning and clamping requirements in their basic functions and support the manufacturing of electrical equipment.

[0003] However, manual clamping is very cumbersome to operate, while pneumatic or hydraulic clamps require higher precision control. However, the clamping precision of such pneumatic or hydraulic clamps is difficult to control, resulting in insufficient clamping precision and protection, which can easily damage the workpiece. For precision, easily deformable (such as thin-walled structures and insulating parts) or electrical equipment parts with high surface finish requirements, excessive or uneven clamping force can easily cause workpiece deformation, indentation or even damage, affecting product quality and yield.

[0004] Therefore, how to provide a positioning and clamping mechanism for the manufacture of electrical equipment is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a positioning and clamping mechanism for electrical equipment manufacturing. This invention solves the problems in the prior art where manual clamping is cumbersome to operate and pneumatic or hydraulic clamping is difficult to control in terms of precision, resulting in excessive or insufficient clamping force on precision, thin-walled or insulating electrical equipment parts, which can easily lead to workpiece deformation, indentation or even damage due to excessive or uneven clamping force.

[0006] A positioning and clamping mechanism for manufacturing electrical equipment according to an embodiment of the present utility model includes a base plate, a worktable, and a workpiece. The bottom of the worktable is fixedly connected to the top of the base plate via a support rod. A support frame is provided on the top of the worktable, and a clamping mechanism is rotatably connected to the top of the support frame. The clamping mechanism includes a movable clamping component and a placement platform. The movable clamping component is disposed on the top of the support frame, and the placement platform is disposed on the movable clamping component. The workpiece is movably placed on the top of the placement platform, and the movable clamping component movably clamps the side of the workpiece near the bottom.

[0007] The movable clamping component includes a side-rotating block, a clamping rod, a limiting groove, and a driving rod. The top of the placement table has a strip-shaped guide groove that connects the top and bottom of the placement table. The driving rod is fixedly connected inside the strip-shaped guide groove at the position closest to the support frame. The side-rotating block is fixedly connected to the side of the clamping rod and is rotatably connected to the top of the support frame. The limiting groove is opened on the side of the clamping rod. The clamping rod is movably sleeved on the surface of the driving rod through the limiting groove. The end of the clamping rod located above the placement table is movably connected to the surface of the workpiece.

[0008] The clamping rod is a "V" shaped rod, the side turning block is set at the bend of the clamping rod, the limiting groove is set on the clamping rod below the side turning block, and the number of clamping rods is more than three sets. The clamping rods with more than three sets are arranged in a ring array with the center of the placement platform as the array center.

[0009] A guide rod is vertically fixed to the top of the placement platform. The bottom end of the guide rod passes through the worktable and extends to the bottom of the worktable. A spring is movably sleeved on the surface of the guide rod located below the worktable. The top end of the spring is movably connected to the bottom end of the worktable, and the bottom end of the spring is movably connected to a convex ring on the surface of the guide rod.

[0010] A protective pad is provided at the end of the clamping rod that connects to the workpiece surface.

[0011] The top of the base plate is equipped with a lifting mechanism for pushing the guide rod upward. The lifting mechanism includes a lifting platform, an X-shaped movable rod, a pushing component, a guide block, a connecting rod, and a track groove. One end of the X-shaped movable rod is rotatably connected to the surface between the lifting platform and the base plate via a fixed seat. The other end of the X-shaped movable rod is rotatably connected to the connecting rod. Both ends of the connecting rod are fixedly connected to the surface of the guide block. There are two sets of track grooves, which are respectively set on the opposite sides of the lifting platform and the base plate. The lifting platform is movably connected to the bottom end of the guide rod. The pushing component is set on the upper surface of the base plate. There are two sets of connecting rods, with part of the pushing component set on one set of connecting rods.

[0012] The pushing assembly includes a drive motor, a drive gear, a transmission gear, a lead screw, and a movable sleeve. The movable sleeve is fixedly connected to the middle position of the set of connecting rods closest to the base plate. The lead screw is rotatably connected to the upper surface of the base plate through a stabilizing seat. The movable sleeve is threaded onto the surface of the lead screw. The transmission gear is fixedly connected to one end of the lead screw. The drive gear is fixedly connected to the output shaft end of the drive motor. The drive gear meshes with the transmission gear. The drive motor is fixedly mounted on the upper surface of the base plate.

[0013] The beneficial effects of this utility model are:

[0014] The clamping mechanism (movable clamping component) is driven by the workpiece's own gravity. When the workpiece is pressed down on the placement table, the V-shaped clamping rod is forced to rotate around the side rotating block as a fulcrum through the cooperation of the driving rod and the limiting groove. This allows multiple jaws to retract inward synchronously, automatically adapting to the stable clamping of workpieces of different sizes and shapes without the need for manual adjustment. The V-shaped clamping rods are distributed in a ring array (>3 groups) to ensure that the clamping force is evenly applied to the circumference of the workpiece, preventing skewing or deformation. It is especially suitable for cylindrical / irregularly shaped electrical components.

[0015] The spring component provides vertical cushioning to avoid rigid impact when placing the workpiece. The protective pad at the end of the clamping rod reduces wear on the clamping surface, providing double protection for the surface of the precision workpiece. Moreover, after moving the workpiece upward, the elastic force of the spring component can quickly move the placement table upward and drive the clamping rod to quickly separate from the workpiece.

[0016] The lifting mechanism is driven by a motor-driven lead screw, which in turn drives the X-shaped movable rod to unfold / retract, precisely controlling the lifting and lowering of the guide rod. When the guide rod rises, it simultaneously pushes the placement platform. The placement platform moves upward and, with the help of spring force, releases the clamping force and lifts the workpiece for easy loading and unloading. The spring pushes the clamping rod to maintain its unfolded state. When the workpiece is placed on the placement platform and lowered, the clamping mechanism resets, making the operation smooth and efficient.

[0017] The clamping process utilizes gravity self-locking, and the clamping rod forms a lever dead point under the constraint of the limiting groove, making it difficult to loosen due to external force disturbance. The overall modular design (base plate-worktable-support frame) saves space and has sufficient rigidity. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a positioning and clamping mechanism for manufacturing electrical equipment proposed in this utility model.

[0020] Figure 2 This is a partial three-dimensional structural diagram of the clamping component in a positioning and clamping mechanism for manufacturing electrical equipment proposed in this utility model.

[0021] Figure 3 This is a partial three-dimensional structural diagram of the lifting mechanism in a positioning and clamping mechanism for manufacturing electrical equipment proposed in this utility model.

[0022] Figure 4 This is a three-dimensional cross-sectional structural diagram of the lifting mechanism position of the clamping mechanism in a positioning and clamping mechanism for electrical equipment manufacturing proposed in this utility model.

[0023] The attached diagram shows: 1. Base plate; 2. Worktable; 3. Workpiece; 4. Support frame; 5. Clamping mechanism; 6. Guide rod; 7. Placement platform; 8. Side rotating block; 9. Clamping rod; 10. Limiting groove; 11. Driving rod; 12. Strip guide groove; 13. Spring component; 14. Protective pad; 15. Lifting platform; 16. X-shaped movable rod; 17. Pushing assembly; 18. Guide block; 19. Connecting rod; 20. Track groove; 21. Drive motor; 22. Drive gear; 23. Transmission gear; 24. Lead screw; 25. Movable sleeve block. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] refer to Figure 1-4 In this embodiment, the worktable includes a base plate 1, a workbench 2, and a workpiece 3. The bottom of the workbench 2 is fixedly connected to the top of the base plate 1 via a support rod. A support frame 4 is provided on the top of the workbench 2. A clamping mechanism 5 is rotatably connected to the top of the support frame 4. The clamping mechanism 5 includes a movable clamping component and a placement platform 7. The movable clamping component is located on the top of the support frame 4, and the placement platform 7 is located on the movable clamping component. The workpiece 3 is movably placed on the top of the placement platform 7, and the movable clamping component is movably clamped on the side of the workpiece 3 near the bottom.

[0026] refer to Figure 1-4 In this embodiment, the movable clamping component includes a side-rotating block 8, a clamping rod 9, a limiting groove 10, and a driving rod 11. The top of the placement platform 7 is provided with a strip-shaped guide groove 12 that connects the top and bottom of the placement platform 7. The driving rod 11 is fixedly connected inside the strip-shaped guide groove 12 at the position closest to the support frame 4. The side-rotating block 8 is fixedly connected to the side of the clamping rod 9 and is rotatably connected to the top of the support frame 4. The limiting groove 10 is provided on the side of the clamping rod 9. The clamping rod 9 is movably sleeved on the surface of the driving rod 11 through the limiting groove 10. One end of the clamping rod 9 located above the placement platform 7 is movably connected to the surface of the workpiece 3. The clamping rod 9 is a "V"-shaped rod. The side-rotating block 8 is located at the bend of the clamping rod 9. The limiting groove 10 is located on the clamping rod 9 at the position below the side-rotating block 8. The number of clamping rods 9 is greater than three sets. The clamping rods 9 with more than three sets are arranged in a ring array with the center of the placement platform 7 as the array center.

[0027] In practice, four sets of clamping rods 9 are set up. The four sets of clamping rods 9 are arranged in a ring array with the center of the placement platform 7 as the array center. The four sets further facilitate the clamping of the workpiece 3, and the clamping is very stable.

[0028] refer to Figure 1-4In this embodiment, a guide rod 6 is vertically fixedly connected to the top of the placement platform 7. The bottom end of the guide rod 6 passes through the worktable 2 and extends to the bottom of the worktable 2. A spring 13 is movably sleeved on the surface of the guide rod 6 located below the worktable 2. The top end of the spring 13 is movably connected to the bottom end of the worktable 2, and the bottom end of the spring 13 is movably connected to the protruding ring on the surface of the guide rod 6. A protective pad 14 is provided at the end of the clamping rod 9 that is connected to the surface of the workpiece 3.

[0029] In practice, the protective pad 14 is used to further protect the surface of the workpiece 3, and the spring 13 is used to keep the clamping rod 9 in the unfolded state after the workpiece 3 is taken out, so as to facilitate the placement of the next workpiece 3.

[0030] refer to Figure 1-4 In this embodiment, the top of the base plate 1 is provided with a lifting mechanism for pushing the guide rod 6 upward. The lifting mechanism includes a lifting platform 15, an X-shaped movable rod 16, a pushing assembly 17, a guide block 18, a connecting rod 19, and a track groove 20. One end of the X-shaped movable rod 16 is rotatably connected to the surface between the lifting platform 15 and the base plate 1 via a fixed seat. The other end of the X-shaped movable rod 16 is rotatably connected to the connecting rod 19. Both ends of the connecting rod 19 are fixedly connected to the surface of the guide block 18. There are two sets of track grooves 20, which are respectively arranged on the opposite surfaces of the lifting platform 15 and the base plate 1. The lifting platform 15 is movably connected to the bottom end of the guide rod 6. The pushing assembly 17 is arranged on the upper surface of the base plate 1. There are two sets of connecting rods 19. Part of the pushing assembly 17 is set on one set of connecting rods 19. The pushing assembly 17 includes a drive motor 21, a drive gear 22, a transmission gear 23, a lead screw 24, and a movable sleeve 25. The movable sleeve 25 is fixedly connected to the middle position of the set of connecting rods 19 closest to the base plate 1. The lead screw 24 is rotatably connected to the upper surface of the base plate 1 through a stabilizing seat. The movable sleeve 25 is threaded onto the surface of the lead screw 24. The transmission gear 23 is fixedly connected to one end of the lead screw 24. The drive gear 22 is fixedly connected to the output shaft end of the drive motor 21. The drive gear 22 meshes with the transmission gear 23. The drive motor 21 is fixedly installed on the upper surface of the base plate 1.

[0031] The working principle of this utility model is as follows:

[0032] When workpiece 3 is placed on top of the placement platform 7, its gravity forces the placement platform 7 to move downwards, causing the drive rod 11, which is fixed in the strip guide groove 12, to descend synchronously. Since the clamping rod 9 is movably sleeved on the surface of the drive rod 11 through the limiting groove 10, the downward movement of the drive rod 11 pushes the limiting groove 10 section of the clamping rod 9 downwards. The bend of the clamping rod 9 is rotatably connected to the top of the support frame 4 through the side rotating block 8, forming a lever structure. At this time, the end of the clamping rod 9 located above the placement platform 7 (the long arm end of the lever) is driven by the lever principle to rotate towards the center of the workpiece 3, causing the multiple V-shaped clamping rods 9 distributed in a ring to retract inwards synchronously, achieving adaptive clamping from the side of the workpiece 3 near the bottom. At the same time, the downward movement of the placement platform 7 causes the guide rod 6 to compress. Spring 13 accumulates buffer potential energy. When unloading is required, drive motor 21 is started, and drive screw 24 rotates through drive gear 22 meshing with transmission gear 23, causing threaded movable sleeve 25 to move horizontally, pulling connecting rod 19 and guide block 18 to slide along track groove 20, forcing X-shaped movable rod 16 to unfold and lift lifting platform 15. Lifting platform 15 pushes guide rod 6 upward, driving placement platform 7 and workpiece 3 to rise. At this time, the workpiece 3 is relieved of gravity, and drive rod 11 rises with placement platform 7. The limiting groove 10 of clamping rod 9 moves in the opposite direction due to the lifting action of drive rod 11, driving the upper end of clamping rod 9 to open outward to release workpiece 3. Spring 13 releases elastic force to assist in reset, completing the workpiece 3 unloading and mechanism reset cycle.

[0033] 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 positioning and clamping mechanism for manufacturing electrical equipment, characterized in that, It includes a base plate (1), a worktable (2) and a workpiece (3). The bottom of the worktable (2) is fixedly connected to the top of the base plate (1) by a support rod. A support frame (4) is provided on the top of the worktable (2). A clamping mechanism (5) is rotatably connected to the top of the support frame (4). The clamping mechanism (5) includes a movable clamping component and a placement platform (7). The movable clamping component is located at the top of the support frame (4), and the placement platform (7) is located on the movable clamping component. The workpiece (3) is movably placed on the top of the placement platform (7), and the movable clamping component is movably clamped on the side of the workpiece (3) near the bottom.

2. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 1, characterized in that, The movable clamping component includes a side-rotating block (8), a clamping rod (9), a limiting groove (10), and a driving rod (11). The top of the placement platform (7) is provided with a strip-shaped guide groove (12) that connects the top and bottom of the placement platform (7). The driving rod (11) is fixedly connected inside the strip-shaped guide groove (12) at the position closest to the support frame (4). The side-rotating block (8) is fixedly connected to the side of the clamping rod (9). The side-rotating block (8) is rotatably connected to the top of the support frame (4). The limiting groove (10) is opened on the side of the clamping rod (9). The clamping rod (9) is movably sleeved on the surface of the driving rod (11) through the limiting groove (10). The end of the clamping rod (9) located above the placement platform (7) is movably connected to the surface of the workpiece (3).

3. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 2, characterized in that, The clamping rod (9) is a "V" shaped rod. The side rotating block (8) is set at the bend of the clamping rod (9). The limiting groove (10) is set on the clamping rod (9) at the position below the side rotating block (8). The number of clamping rods (9) is greater than three sets. The clamping rods (9) with more than three sets are arranged in a ring array with the center of the placement platform (7) as the array center.

4. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 3, characterized in that, A guide rod (6) is vertically fixed to the top of the placement platform (7). The bottom end of the guide rod (6) passes through the workbench (2) and extends to the bottom of the workbench (2). A spring (13) is movably sleeved on the surface of the guide rod (6) below the workbench (2). The top end of the spring (13) is movably connected to the bottom end of the workbench (2), and the bottom end of the spring (13) is movably connected to the protruding ring on the surface of the guide rod (6).

5. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 4, characterized in that, A protective pad (14) is provided at the end of the clamping rod (9) that is connected to the surface of the workpiece (3).

6. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 5, characterized in that, The top of the base plate (1) is provided with a lifting mechanism for pushing the guide rod (6) to rise. The lifting mechanism includes a lifting platform (15), an X-shaped movable rod (16), a pushing component (17), a guide block (18), a connecting rod (19), and a track groove (20). One end of the X-shaped movable rod (16) is rotatably connected to the surface between the lifting platform (15) and the base plate (1) through a fixed seat. The other end of the X-shaped movable rod (16) is rotatably connected to the connecting rod (19). The two ends of the connecting rod (19) are fixedly connected to the surface of the guide block (18). There are two sets of track grooves (20). The two sets of track grooves (20) are respectively set on the opposite sides of the lifting platform (15) and the base plate (1). The lifting platform (15) is movably connected to the bottom end of the guide rod (6). The pushing component (17) is set on the upper surface of the base plate (1). There are two sets of connecting rods (19). Part of the pushing component (17) is set on one set of connecting rods (19).

7. The positioning and clamping mechanism (5) for manufacturing electrical equipment according to claim 6, characterized in that, The pushing assembly (17) includes a drive motor (21), a drive gear (22), a transmission gear (23), a lead screw (24), and a movable sleeve (25). The movable sleeve (25) is fixedly connected to the middle position of the set of connecting rods (19) closest to the base plate (1). The lead screw (24) is rotatably connected to the upper surface of the base plate (1) through a stabilizing seat. The movable sleeve (25) is threaded onto the surface of the lead screw (24). The transmission gear (23) is fixedly connected to one end of the lead screw (24). The drive gear (22) is fixedly connected to the output shaft end of the drive motor (21). The drive gear (22) meshes with the transmission gear (23). The drive motor (21) is fixedly installed on the upper surface of the base plate (1).

Images