A clamp device for processing busbar arc

Abstract

The utility model discloses a kind of clamp devices of busbar arc processing, the utility model relates to the special fixture technical field of power busbar processing.It is the clamp device of this busbar arc processing, including fixed base, the middle portion of fixed base lower surface is fixedly installed with motor, the output end of motor top is fixedly connected with shaft, the top of shaft is fixedly connected with circular bottom plate, the upper surface of circular bottom plate is fixedly connected with fixed shell, first rotating rod and second rotating rod are rotatably connected in the inside of fixed shell, the outer surface of first rotating rod is fixedly connected with cam and first bevel gear, movable plate is sleeved in the inside of fixed shell, movable plate side away from cam is fixedly connected with return spring, the lug of movable plate top is fixedly connected with movable clamp head, the side of fixed shell upper surface is fixedly connected with fixed clamp head, one end of second rotating rod is fixedly connected with second bevel gear, the utility model can provide stable clamping force and realize accurate angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of special fixtures for processing power busbars, specifically a clamping device for processing the arc of a busbar. Background Technology

[0002] Machining busbar arcs refers to the precision machining process of rounding the ends or corners of conductor busbars used for collecting and distributing electrical energy in power systems. This machining is typically achieved using CNC equipment. Through programmed control of milling or stamping operations, the right angle transition of the busbar is transformed into a smooth arc, improving both electrical performance and mechanical strength. During machining, busbar specifications must be input, and the equipment automatically generates program code to complete operations such as milling rounded corners and large rounded corners, ensuring the arc's appearance is aesthetically pleasing and meets practical requirements. This technology effectively reduces current concentration, lowers the risk of localized heating, and avoids material fatigue caused by stress concentration at right angles. During the machining of busbar arcs, the stability of the workpiece clamping and the precision of angle adjustment are crucial to ensuring machining quality.

[0003] Currently common clamping devices generally suffer from unstable clamping force, making it difficult to provide continuous and uniform clamping force. This can easily lead to workpiece loosening or displacement during processing, affecting not only processing accuracy but also posing safety hazards. At the same time, existing devices lack an effective angle adjustment mechanism. They either cannot perform rotational positioning or rely on crude adjustment methods and manual visual inspection, making it difficult to accurately index and fix the angle of the generatrix. This results in difficulty controlling the form and position tolerances of the arc segment, directly affecting the assembly performance and service life of the product. Therefore, there is an urgent need for a special fixture that can simultaneously solve the problems of constant clamping force and precise angle adjustment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a clamping device for machining busbar arcs, thereby solving the problems mentioned in the background art, such as unstable clamping force leading to workpiece displacement and inaccurate machining angle adjustment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for processing busbar arcs, comprising a fixed base, a motor fixedly mounted at the middle of the lower surface of the fixed base, a rotating shaft fixedly connected to the output end of the motor, a circular base plate fixedly connected to the top of the rotating shaft, a fixed shell fixedly connected to the upper surface of the circular base plate, a first rotating rod and a second rotating rod rotatably connected inside the fixed shell, a cam and a first bevel gear fixedly connected to the outer surface of the first rotating rod, a movable plate sleeved inside the fixed shell, a return spring fixedly connected to the side of the movable plate away from the cam, a movable clamping head fixedly connected to the protrusion at the top of the movable plate, a fixed clamping head fixedly connected to the side of the upper surface of the fixed shell, and a second bevel gear fixedly connected to one end of the second rotating rod.

[0006] Preferably, a mounting base is fixedly connected to the lower surface of the fixed seat, the top end of the rotating shaft extends above the fixed seat, an angle line is provided on the upper surface of the fixed seat, and a pointer is fixedly connected to the edge of the circular base plate.

[0007] Preferably, a plurality of balls are movably disposed on the upper surface of the fixed base, the tops of the plurality of balls are in contact with the lower surface of the circular base plate, and the plurality of balls are arranged in a ring array around the pivot.

[0008] Preferably, the first bevel gear meshes with the second bevel gear, the end of the return spring away from the moving plate is fixedly connected to the inner wall of the fixed shell, the top of the fixed shell is provided with a first guide groove, and the protrusion on the top of the moving plate passes through the first guide groove.

[0009] Preferably, the end of the second rotating rod away from the second bevel gear extends to the outside of the fixed housing, and a sleeve rod is sleeved on the end of the second rotating rod away from the second bevel gear. A fixing block is fixedly connected to the outer surface of the second rotating rod, and a second guide groove is opened inside the sleeve rod. The outer surface of the fixing block is slidably disposed inside the second guide groove.

[0010] Preferably, a limiting seat is fixedly connected to the outer surface of the fixed shell, a limiting block is fixedly connected to one end of the sleeve rod near the fixed shell, the teeth on the outer surface of the limiting block are adapted to the grooves on the inner surface of the limiting seat, and a rotating block is fixedly connected to one end of the sleeve rod away from the limiting block.

[0011] Beneficial effects

[0012] This utility model provides a clamping device for machining busbar arcs. It has the following beneficial effects:

[0013] 1. The clamping device for machining the arc of the busbar effectively solves the problem of unstable clamping force through the cooperation between the cam, the first bevel gear, the second bevel gear, the moving plate, and the limit seat and the limit block. During the rotation, the cam can convert the rotational motion into a stable linear displacement of the moving plate, so that the movable clamping head can apply a constant and reliable clamping force to the workpiece. This completely avoids the loosening and displacement of the workpiece caused by inconsistent manual tightening force or machining vibration, and significantly improves the clamping stability and machining safety.

[0014] 2. This clamping device for machining busbar arcs, driven by a motor-driven rotating shaft and equipped with angle lines and pointers, successfully achieves precise angle adjustment. The motor, as the power source, drives the clamping mechanism to rotate smoothly. The operator can directly control and lock the rotation angle of the circular base plate according to the scale indicated by the pointer on the angle line, thus easily completing various angle divisions required for busbar arc machining. This solves the drawbacks of traditional methods, such as rough adjustment and reliance on visual inspection, and effectively ensures the shape and position accuracy and machining consistency of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the fixing base of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing shell of this utility model;

[0018] Figure 4 This is a top view of the internal structure of the fixed shell of this utility model.

[0019] In the diagram: 1. Fixed seat; 2. Mounting base; 3. Motor; 4. Rotating shaft; 5. Circular base plate; 6. Fixed shell; 7. Ball bearing; 8. Angle line; 9. Pointer; 10. First rotating rod; 11. Cam; 12. First bevel gear; 13. Moving plate; 14. Return spring; 15. Movable clamp head; 16. First guide groove; 17. Fixed clamp head; 18. Second rotating rod; 19. Second bevel gear; 20. Sleeve rod; 21. Rotating block; 22. Fixed block; 23. Second guide groove; 24. Limit seat; 25. Limiting block. 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] like Figure 1-4 As shown, this utility model provides a clamping device for processing busbar arcs, including a fixed base 1. A motor 3 is fixedly installed at the middle of the lower surface of the fixed base 1. A rotating shaft 4 is fixedly connected to the output end of the top of the motor 3. A circular base plate 5 is fixedly connected to the top of the rotating shaft 4. A fixed shell 6 is fixedly connected to the upper surface of the circular base plate 5. A first rotating rod 10 and a second rotating rod 18 are rotatably connected inside the fixed shell 6. A cam 11 and a first bevel gear 12 are fixedly connected to the outer surface of the first rotating rod 10. A movable plate 13 is sleeved inside the fixed shell 6. A return spring 14 is fixedly connected to the side of the movable plate 13 away from the cam 11. A movable clamping head 15 is fixedly connected to the protrusion at the top of the movable plate 13. A fixed clamping head 17 is fixedly connected to the side of the upper surface of the fixed shell 6. A second bevel gear 19 is fixedly connected to one end of the second rotating rod 18.

[0022] Specifically, the lower surface of the fixed base 1 is fixedly connected to the mounting base 2, the top end of the rotating shaft 4 extends to the top of the fixed base 1, the upper surface of the fixed base 1 is provided with an angle line 8, the edge of the circular base plate 5 is fixedly connected to a pointer 9, the mounting base 2 is used to stably fix the entire device on the processing table, the angle line 8 and the pointer 9 cooperate with each other to form a simple and accurate angle indication system, so that the operator can clearly observe and control the rotation angle of the circular base plate 5 and the clamps on it.

[0023] Specifically, multiple balls 7 are movably arranged on the upper surface of the fixed base 1. The tops of the multiple balls 7 are in contact with the lower surface of the circular base plate 5. The multiple balls 7 are arranged in a ring array around the rotating shaft 4. The ring array of balls 7 is located between the fixed base 1 and the circular base plate 5, which transforms the sliding friction between the two into rolling friction. This greatly reduces the resistance when the circular base plate 5 rotates, ensuring that the drive device operates smoothly and easily.

[0024] Specifically, the first bevel gear 12 meshes with the second bevel gear 19, and the end of the return spring 14 away from the moving plate 13 is fixedly connected to the inner wall of the fixed shell 6. The top of the fixed shell 6 is provided with a first guide groove 16, and the protrusion on the top of the moving plate 13 passes through the first guide groove 16. The meshing of the first bevel gear 12 and the second bevel gear 19 realizes the change of the power transmission direction. The return spring 14 provides the driving force for the moving plate 13 to automatically reset, and the first guide groove 16 guides and limits the movement of the protrusion on the moving plate 13, ensuring that the movable clamp head 15 can only move linearly along the predetermined path.

[0025] Specifically, the end of the second rotating rod 18 away from the second bevel gear 19 extends to the outside of the fixed housing 6. A sleeve rod 20 is sleeved on the end of the second rotating rod 18 away from the second bevel gear 19. A fixing block 22 is fixedly connected to the outer surface of the second rotating rod 18. A second guide groove 23 is opened inside the sleeve rod 20. The outer surface of the fixing block 22 is slidably disposed inside the second guide groove 23. The sleeve rod 20 cooperates with the fixing block 22 fixed on the second rotating rod 18 through the second guide groove 23 inside it to form an axially sliding spline connection. This allows the operator to pull the sleeve rod 20 outward to disengage it from the limiting mechanism when adjustment is needed. At the same time, without disengaging the transmission connection, the second rotating rod 18 can be driven to rotate by rotating the sleeve rod 20.

[0026] Specifically, a limiting seat 24 is fixedly connected to the outer surface of the fixed shell 6, and a limiting block 25 is fixedly connected to one end of the sleeve rod 20 near the fixed shell 6. The teeth on the outer surface of the limiting block 25 are adapted to the groove on the inner surface of the limiting seat 24. A rotating block 21 is fixedly connected to one end of the sleeve rod 20 away from the limiting block 25. When the limiting block 25 engages with the groove of the limiting seat 24, it can effectively lock the sleeve rod 20 and the second rotating rod 18, preventing them from rotating accidentally due to vibration or external force during equipment operation, thereby ensuring the reliability of the clamping state.

[0027] The working principle of the above embodiments:

[0028] In use, the device clamps and releases the workpiece through the cooperation of the fixed clamping head 17 and the controllable movable clamping head 15. The operator pulls the rotating block 21 outward to make the limiting block 25 leave the limiting seat 24, and manually rotates the rotating block 21. The rotating block 21 drives the sleeve rod 20 to rotate. The sleeve rod 20 transmits the rotational motion to the second rotating rod 18 through the sliding engagement of the second guide groove 23 opened inside it with the fixed block 22 fixed on the second rotating rod 18. The second bevel gear 19 set at one end of the second rotating rod 18 rotates accordingly, and drives the first bevel gear 12 meshing with it to rotate, driving the same... The cam 11 of the shaft rotates synchronously. When the protruding part of the cam 11 turns towards the moving plate 13, it pushes the moving plate 13 to move laterally inside the fixed housing 6 and compresses the return spring 14. The movable clamping head 15 then moves along the first guide groove 16 at the top of the fixed housing 6 towards the fixed clamping head 17, thereby firmly clamping the workpiece between the two clamping heads. When it is necessary to release the workpiece, the cam 11 continues to rotate until its non-protruding part is aligned with the moving plate 13. At this time, the moving plate 13 moves in the opposite direction under the restoring force of the return spring 14, driving the movable clamping head 15 to reset, and the workpiece is released.

[0029] After clamping the workpiece, the motor 3 can be started, which drives the rotating shaft 4 to rotate, thereby causing the entire fixed housing 6 and the fixed clamping head 17 and movable clamping head 15 mounted on it to rotate together. In order to precisely control the rotation angle, an angle line 8 is engraved on the upper surface of the fixed base 1, and a pointer 9 is fixed on the edge of the circular base plate 5. When the circular base plate 5 rotates, the operator can intuitively set the azimuth angle of the clamp by observing the scale indicated by the pointer 9 on the angle line 8. In addition, in order to ensure the smoothness and accuracy of the rotation process, a ring of ball bearings 7 arranged in a ring around the rotating shaft 4 is provided between the bottom of the circular base plate 5 and the upper surface of the fixed base 1. This structure greatly reduces rotational friction. Through the above synergistic effect, the device can efficiently and accurately complete the machining task of the workpiece generatrix arc.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for machining busbar arcs, comprising a fixed base (1), characterized in that: A motor (3) is fixedly installed at the middle of the lower surface of the fixed base (1). A rotating shaft (4) is fixedly connected to the output end of the top of the motor (3). A circular base plate (5) is fixedly connected to the top of the rotating shaft (4). A fixed shell (6) is fixedly connected to the upper surface of the circular base plate (5). A first rotating rod (10) and a second rotating rod (18) are rotatably connected inside the fixed shell (6). A cam (11) and a first bevel gear (12) are fixedly connected to the outer surface of the first rotating rod (10). A movable plate (13) is sleeved inside the fixed shell (6). A return spring (14) is fixedly connected to the side of the movable plate (13) away from the cam (11). A movable clamp head (15) is fixedly connected to the protrusion at the top of the movable plate (13). A fixed clamp head (17) is fixedly connected to the side of the upper surface of the fixed shell (6). A second bevel gear (19) is fixedly connected to one end of the second rotating rod (18).

2. The clamping device for machining busbar arcs according to claim 1, characterized in that: The lower surface of the fixed base (1) is fixedly connected to the mounting base (2), the top end of the rotating shaft (4) extends to the top of the fixed base (1), the upper surface of the fixed base (1) is provided with an angle line (8), and the edge of the circular base plate (5) is fixedly connected to a pointer (9).

3. The clamping device for machining busbar arcs according to claim 1, characterized in that: The upper surface of the fixed base (1) is movably provided with a plurality of balls (7), the tops of the plurality of balls (7) are in contact with the lower surface of the circular base plate (5), and the plurality of balls (7) are arranged in a ring array with the rotating shaft (4) as the axis.

4. The clamping device for machining busbar arcs according to claim 1, characterized in that: The first bevel gear (12) meshes with the second bevel gear (19). The end of the return spring (14) away from the moving plate (13) is fixedly connected to the inner wall of the fixed shell (6). The top of the fixed shell (6) is provided with a first guide groove (16). The protrusion on the top of the moving plate (13) passes through the first guide groove (16).

5. A clamping device for machining busbar arcs according to claim 1, characterized in that: The end of the second rotating rod (18) away from the second bevel gear (19) extends to the outside of the fixed shell (6). A sleeve rod (20) is sleeved on the end of the second rotating rod (18) away from the second bevel gear (19). A fixing block (22) is fixedly connected to the outer surface of the second rotating rod (18). A second guide groove (23) is opened inside the sleeve rod (20). The outer surface of the fixing block (22) is slidably disposed inside the second guide groove (23).

6. A clamping device for machining busbar arcs according to claim 5, characterized in that: The outer surface of the fixed shell (6) is fixedly connected to a limiting seat (24), and the end of the sleeve rod (20) near the fixed shell (6) is fixedly connected to a limiting block (25). The teeth on the outer surface of the limiting block (25) are adapted to the groove on the inner surface of the limiting seat (24). The end of the sleeve rod (20) away from the limiting block (25) is fixedly connected to a rotating block (21).

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