A wiring copper bar punching processing positioning tool and a punching device

Abstract

The utility model discloses a kind of wiring copper bar punching processing positioning tool and punching device, belong to busbar processing equipment technical field, including fixed positioning plate, fixed positioning plate includes fixed long edge plate and fixed short edge plate, fixed long edge plate and fixed short edge plate coplanar, and one end of fixed long edge plate and one end of fixed short edge plate are vertically connected;The inside of the corner of fixed long edge plate and fixed short edge plate is busbar placement position;Busbar placement position is detachably connected with movable positioning plate, movable positioning plate can be connected with fixed long edge plate, and movable positioning plate is parallel with fixed short edge plate.Coplanar and vertically connected of fixed long edge plate and fixed short edge plate, after busbar body is placed, preliminary positioning can be formed with the aid of two vertical edges, without pre-measurement, marking operation, the tool has stronger universality, simplify cumbersome operation step, help shorten positioning time, improve processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of busbar processing equipment, specifically a positioning fixture and punching device for punching holes in wiring copper busbars. Background Technology

[0002] The primary copper busbar of a current transformer serves as the primary terminal and needs to be connected to the circuit under test. The primary copper busbar must be equipped with wiring holes to ensure a tight connection between the primary winding and the circuit. The common method for machining the wiring holes of the primary copper busbar of a current transformer is punching, which is a relatively tedious process. Currently, punching first requires measuring and marking on the copper busbar to mark the center point of the punch. Then, the copper busbar is placed on a machining platform, and the center of the punch is aligned with the mark on the copper busbar using a positioning light source. The primary copper busbar typically has two or four wiring holes. Before punching each hole, the position of each hole must be marked, and the marked positions must be aligned with the center of the punch before punching.

[0003] The current copper busbar punching process is complex, the punching positioning accuracy is poor, the processing time is long, and the production efficiency is low.

[0004] Chinese patent CN115890802A discloses a rapid positioning device for punching holes in busbars. Based on the desired punching position on the busbar, a center screw is pre-installed on the positioning plate. Then, a device is installed on the positioning plate to regulate and limit the busbar's position. The center screw leaves a clear mark on the busbar, thus achieving rapid and precise positioning of the hole location. However, this device requires the installation of a side plate and center screws on the positioning plate, which is cumbersome and reduces processing efficiency. Utility Model Content

[0005] To address the problem that the hole position calibration operation is cumbersome and affects production efficiency during the punching process of copper busbars, this utility model provides a positioning fixture and punching device for punching copper busbars.

[0006] This utility model is achieved through the following technical solution: A positioning fixture for punching holes in copper busbars includes a fixed positioning plate, which comprises a fixed long side plate and a fixed short side plate. The fixed long side plate and the fixed short side plate are coplanar, and one end of the fixed long side plate is perpendicularly connected to one end of the fixed short side plate. The inner corner of the fixed long side plate and the fixed short side plate forms a busbar placement position. A movable positioning plate is detachably connected within the busbar placement position. The movable positioning plate can connect with the fixed long side plate and is parallel to the fixed short side plate.

[0007] The fixed long side plate and the fixed short side plate are coplanar and perpendicularly connected, forming a busbar placement position for the busbar body. After the busbar body is placed, it can be initially positioned by the two vertical edges. Without the need for pre-measurement and calibration, the calibration assistance for machining two busbar wiring holes on the busbar body can be completed. By using the movable positioning plate and the fixed positioning plate in combination, the calibration assistance for machining four busbar wiring holes on the busbar body can be completed. This tooling has strong versatility, simplifies cumbersome operation steps, helps to shorten positioning time, and improves processing efficiency.

[0008] A further improvement of this invention is that the fixed long side plate is provided with an assembly groove capable of accommodating one end of the movable positioning plate. The assembly groove provides assembly space for the movable positioning plate to be installed on the fixed positioning plate, provides a reference for the placement of the movable positioning plate, and shortens assembly time.

[0009] A further improvement of this invention is that one end of the aforementioned movable positioning plate is provided with a positioning mounting joint that can be adapted to the assembly slot. By adapting the mounting joint to the assembly slot, the assembly of the movable positioning plate onto the fixed positioning plate can be completed quickly.

[0010] A further improvement of this invention is that the aforementioned assembly groove is located on the bottom surface of the fixed long side plate. By having the assembly groove located on the bottom surface of the fixed long side plate, the difficulty of the moving positioning plate detaching from the assembly groove can be reduced when the busbar body comes into contact with the moving positioning plate.

[0011] A further improvement of this utility model is that the aforementioned fixed long side plate is provided with a first clearance groove and a second clearance groove; the first clearance groove is located near the inner corner of the fixed long side plate and the fixed short side plate; the second clearance groove is located near the inner corner of the fixed long side plate and the movable positioning plate. Considering that burrs are very likely to appear at the corners during the processing of the busbar body, the clearance grooves can form a clearance fit with the burrs at that location, avoiding the situation where the busbar body cannot fit with the fixed long side plate and causes the busbar body to shift, thereby helping to ensure the positional processing accuracy of the busbar wiring holes on the busbar body.

[0012] A further improvement of this utility model is that a first positioning protrusion is provided in the middle of the fixed short side plate facing the busbar placement position; and a second positioning protrusion is provided in the middle of the movable positioning plate facing the busbar placement position. The point contact between the positioning protrusion and the short side of the busbar body helps to improve the stability of the busbar body's positioning.

[0013] A punching device includes a punching platform, a punch holder, and a punch body. The punch body is mounted above the punching platform via the punch holder. A positioning fixture for punching and positioning busbars is also mounted on the punching platform. The busbar is positioned vertically opposite the punch body. By placing the positioning fixture on the punching platform, which is vertically opposite the punch body, the punch body facilitates the processing of busbar wiring holes on the busbar body.

[0014] A further improvement of this utility model is that the aforementioned fixed positioning plate is provided with at least one positioning hole, which allows fasteners to pass through and mount the fixed positioning plate onto the punching platform. Through the cooperation of the fasteners and the positioning hole, the fixed positioning plate is secured on the punching platform, preventing misalignment of the busbar wiring holes caused by insecure mounting of the fixed positioning plate.

[0015] A further improvement of this invention is that the aforementioned punch holder is also equipped with a positioning light source that is compatible with the punch body. By projecting the positioning light source onto the busbar body, it serves as a calibration point for the punching position on the punch body, and can be used as a calibration reference before machining the busbar wiring holes.

[0016] As can be seen from the above technical solution, the beneficial effects of this utility model are: the fixed long side plate and the fixed short side plate are connected in a coplanar perpendicular manner to form a busbar placement position for placing the busbar body. After the busbar body is placed, it can be initially positioned by means of the two vertical edges. Without the need for pre-measurement and calibration, the calibration assistance for processing two busbar wiring holes on the busbar body can be completed. By using the moving positioning plate and the fixed positioning plate in combination, the calibration assistance for processing four busbar wiring holes on the busbar body can be completed. This tooling has strong versatility, simplifies cumbersome operation steps, helps to shorten positioning time, and improves processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the fixed positioning plate structure according to a specific embodiment of the present utility model.

[0020] Figure 3 for Figure 2 The diagram on the right side shows the structure.

[0021] Figure 4 for Figure 2 A schematic diagram of the top structure.

[0022] Figure 5 for Figure 1 A schematic diagram of the right side structure of the China Mobile positioning plate.

[0023] Figure 6 This is a schematic diagram of the combined structure of the fixed positioning plate and the busbar body in a specific embodiment of this utility model.

[0024] Figure 7 This is a schematic diagram of the combined structure of the movable positioning plate and the busbar body in a specific embodiment of this utility model.

[0025] Figure 8 This is a schematic diagram of the first state structure of the punching device according to a specific embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the second state structure of the punching device according to a specific embodiment of the present invention.

[0027] In the attached diagram: 10. Fixed positioning plate; 11. Fixed long side plate; 12. Fixed short side plate; 13. Positioning protrusion one; 14. Positioning hole; 15. Clearance groove one; 16. Clearance groove two; 17. Assembly groove; 20. Movable positioning plate; 21. Positioning protrusion two; 22. Positioning installation joint; 30. Punching platform; 31. Punch bracket; 32. Positioning light source; 33. Punch body; 40. Busbar body; 41. Busbar wiring hole; 50. Busbar placement position. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] like Figures 1-7As shown, this utility model discloses a positioning fixture for punching holes in a copper busbar, including a fixed positioning plate 10. The fixed positioning plate 10 includes a fixed long side plate 11 and a fixed short side plate 12. The fixed long side plate 11 and the fixed short side plate 12 are coplanar, and one end of the fixed long side plate 11 is perpendicularly connected to one end of the fixed short side plate 12. The inner side of the corner between the fixed long side plate 11 and the fixed short side plate 12 is a busbar placement position 50. A movable positioning plate 20 is detachably connected to the busbar placement position 50. The movable positioning plate 20 can be connected to the fixed long side plate 11, and the movable positioning plate 20 is parallel to the fixed short side plate 12.

[0030] The fixed long side plate 11 and the fixed short side plate 12 are coplanar and perpendicularly connected, forming a busbar placement position 50 for placing the busbar body 40. After the busbar body 40 is placed, it can be initially positioned by means of the two vertical edges. Without the need for pre-measurement and calibration, the calibration assistance for machining the two busbar wiring holes 41 of the busbar body 40 can be completed. By using the movable positioning plate 20 in conjunction with the fixed positioning plate 10, the calibration assistance for machining the four busbar wiring holes 41 of the busbar body 40 can be completed. This tooling has strong versatility, simplifies cumbersome operation steps, helps to shorten positioning time, and improves processing efficiency.

[0031] The fixed long side plate 11 is provided with an assembly groove 17 that can accommodate one end of the movable positioning plate 20. One end of the movable positioning plate 20 is provided with a positioning mounting joint 22 that can be adapted to the assembly groove 17. The assembly groove 17 provides assembly space for the installation of the movable positioning plate 20 on the fixed positioning plate 10, provides a reference for the placement of the movable positioning plate 20, and shortens the assembly time.

[0032] The assembly groove 17 is disposed on the bottom surface of the fixed long side plate 11. When the busbar body 40 comes into contact with the movable positioning plate 20, the difficulty of the movable positioning plate 20 being dislodged from the assembly groove 17 can be reduced.

[0033] The fixed long side plate 11 is provided with a first clearance groove 15 and a second clearance groove 16. The first clearance groove 15 is located near the inner corner of the fixed long side plate 11 and the fixed short side plate 12. The second clearance groove 16 is located near the inner corner of the fixed long side plate 11 and the movable positioning plate 20. That is, the second clearance groove 16 is located on the side of the assembly groove 17 away from the first clearance groove 15. Considering that burrs are very likely to appear at the corners during the processing of the busbar body 40, the clearance grooves can form a clearance fit with the burrs at this location, avoiding the situation where the busbar body 40 cannot fit with the fixed long side plate 11 and causes the busbar body 40 to shift. This helps to ensure the positional processing accuracy of the busbar wiring hole 41 on the busbar body 40.

[0034] The fixed short side plate 12 has a positioning protrusion 13 in the middle facing the busbar placement position 50; the movable positioning plate 20 has a positioning protrusion 21 in the middle facing the busbar placement position 50. The positioning protrusions make point contact with the short side of the busbar body 40, which helps to improve the stability of the positioning of the busbar body 40.

[0035] like Figures 8-9 As shown, a punching device includes a punching platform 30, a punch support 31, and a punch body 33. The punch body 33 is mounted above the punching platform 30 via the punch support 31. A positioning fixture for punching copper busbars is also installed on the punching platform 30. The busbar placement position 50 is vertically opposite to the punch body 33. By placing the positioning fixture on the punching platform 30, which is vertically opposite to the punch body 33, the punch body 33 facilitates the processing of the busbar wiring holes 41 on the busbar body 40.

[0036] The fixed positioning plate 10 has at least one positioning hole 14, which allows fasteners to pass through and install the fixed positioning plate 10 on the punching platform 30. The fasteners cooperate with the positioning holes 14 to fix the fixed positioning plate 10 on the punching platform 30, thus preventing the busbar wiring hole 41 from shifting due to insecure installation of the fixed positioning plate 10.

[0037] The fixed short side plate 12 has a positioning hole 14 located in the middle of the fixed short side plate 12; the fixed long side plate 11 has two positioning holes 14 located in the middle section of the fixed long side plate 11.

[0038] The punch holder 31 is also equipped with a positioning light source 32 that can be adapted to the punch body 33. The positioning light source 32 is projected onto the busbar body 40 to mark the punching position of the punch body 33, which can be used as a calibration reference before processing the busbar wiring hole 41.

[0039] In summary, the working principle of this device is as follows: When two busbar wiring holes 41 need to be opened on the busbar body 40, the movable positioning plate 20 is assembled on the fixed long side plate 11, and the punch body 33 first processes one busbar wiring hole 41 on the busbar body 40. Then, the busbar body 40 is horizontally flipped along the fixed short side plate 12, and the punch body 33 is operated again to complete the processing operation of the other busbar wiring hole 41. When four busbar wiring holes 41 need to be opened on the busbar body 40, the movable positioning plate 20 is simply removed, and then the busbar body 40 is brought into contact with the positioning protrusion 13 on the fixed short side plate 12. Through the same operation described above, the processing of the other two busbar wiring holes 41 on the busbar body 40 can be completed.

[0040] The present invention discloses a positioning fixture and punching device for punching holes in copper busbars. A fixed long side plate and a fixed short side plate are coplanar and perpendicularly connected, forming a busbar placement position for the busbar body. After the busbar body is placed, preliminary positioning can be achieved using the two perpendicular edges. No prior measurement or calibration is required to complete the calibration assistance for processing two busbar wiring holes on the busbar body. Through the combined use of the movable positioning plate and the fixed positioning plate, calibration assistance can be completed for processing four busbar wiring holes on the busbar body. This fixture has strong versatility, simplifies cumbersome operation steps, helps shorten positioning time, and improves processing efficiency.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning fixture for punching holes in copper busbars, comprising a fixed positioning plate (10), characterized in that, The fixed positioning plate (10) includes a fixed long side plate (11) and a fixed short side plate (12). The fixed long side plate (11) and the fixed short side plate (12) are coplanar, and one end of the fixed long side plate (11) is perpendicularly connected to one end of the fixed short side plate (12). The inner corner of the fixed long side plate (11) and the fixed short side plate (12) is a busbar placement position (50). A movable positioning plate (20) is detachably connected in the busbar placement position (50). The movable positioning plate (20) can be connected to the fixed long side plate (11), and the movable positioning plate (20) is parallel to the fixed short side plate (12).

2. The positioning fixture for punching holes in a copper busbar according to claim 1, characterized in that, The fixed long side plate (11) is provided with an assembly groove (17) that can accommodate one end of the movable positioning plate (20).

3. The positioning fixture for punching holes in copper busbars according to claim 2, characterized in that, One end of the movable positioning plate (20) is provided with a positioning mounting joint (22) that can be adapted to the assembly slot (17).

4. The positioning fixture for punching holes in a copper busbar according to claim 2, characterized in that, The assembly groove (17) is located on the bottom surface of the fixed long side plate (11).

5. The positioning fixture for punching holes in a copper busbar according to claim 3, characterized in that, The fixed long side plate (11) is provided with a first clearance groove (15) and a second clearance groove (16); the first clearance groove (15) is located at the inner corner near the fixed long side plate (11) and the fixed short side plate (12); the second clearance groove (16) is located at the inner corner near the fixed long side plate (11) and the movable positioning plate (20).

6. The positioning fixture for punching holes in a copper busbar according to claim 5, characterized in that, The fixed short side plate (12) has a positioning protrusion one (13) in the middle and facing the busbar placement position (50); the movable positioning plate (20) has a positioning protrusion two (21) in the middle and facing the busbar placement position (50).

7. A punching device, comprising a punching platform (30), a punch support (31), and a punch body (33), wherein the punch body (33) is disposed above the punching platform (30) via the punch support (31), characterized in that, The punching platform (30) is also equipped with a wiring copper busbar punching and positioning fixture as described in any one of claims 1 to 6, wherein the busbar placement position (50) is vertically opposite to the punch body (33).

8. A punching device according to claim 7, characterized in that, The fixed positioning plate (10) has at least one positioning hole (14), which allows fasteners to pass through and mount the fixed positioning plate (10) on the punching platform (30).

9. A punching device according to claim 7, characterized in that, The punch holder (31) is also provided with a positioning light source (32) that can be adapted to the punch body (33).

Images