Silver spot welding device for moving contact of circuit breaker

Abstract

The utility model relates to a silver spot welding device for a moving contact of a circuit breaker. The technical problem to be solved by the utility model is to provide the circuit breaker moving contact silver spot welding device with adjusting and buffering functions. According to the technical scheme, the silver point upper welding device comprises a silver point upper welding device body, a welding supporting device, a moving contact clamping air cylinder and a moving contact, and the silver point upper welding device body comprises a welding support, a welding pushing air cylinder, a guide column, a main driving plate and a welding adjusting assembly. The welding adjusting assembly comprises an upper guide plate, a main lock plate, a silver spot welding column, a welding column fixing block, a bolt and a buffer spring. The silver spot welding device has the advantages that preliminary buffering is achieved during silver spot welding, so that impact on the silver spot welding column is reduced; the adjusting block clamping teeth and the height locking teeth interact, the height of the installed silver spot welding column can be adjusted, use is more flexible, looseness is not prone to occurring after adjustment, the structure is firmer, and welding precision is higher.

Description

Technical Field

[0001] The utility model relates to a silver spot welding device for a moving contact of a circuit breaker. Background Art

[0002] The moving contact of the circuit breaker is one of the important components of high-voltage electrical appliances such as high-voltage circuit breakers, switch cabinets, disconnectors, and grounding switches. It plays a key role in the opening and closing processes of the circuit breaker. The silver spot welding device for the moving contact of the circuit breaker is a device used for welding the moving contact and the silver spot. In actual use, it is found that the silver spot welding joint of the existing silver spot welding device for the moving contact of the circuit breaker is fixedly installed and cannot be adjusted and has no buffering. It is not flexible to use and has long-term hard contact with the moving contact during the welding process. This leads to a high scrap rate of the welding joint after long-term impact. On the one hand, frequent replacement affects the welding efficiency, and on the other hand, it leads to an increase in welding costs. Improvements and optimizations are made for this. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a circuit breaker moving contact silver spot welding device with adjustment and buffering functions.

[0004] The technical solution adopted by the silver spot welding device of the moving contact of the circuit breaker of the utility model: includes a silver spot welding device, a welding support device, a moving contact clamping cylinder and a moving contact, characterized in that the silver spot welding device includes a welding support, a welding push cylinder arranged on the welding support, a guide column, a main driving plate sleeved on the guide column and connected to the welding push cylinder, and a welding adjustment component fixed under the main driving plate, the welding adjustment component includes an upper guide plate, a main locking plate, a silver spot welding column for welding the moving contact, a welding column fixing block, a bolt and a buffer spring, the upper guide plate and the main locking plate are connected by the bolt, and the spring is sleeved on the bolt and placed between the upper guide plate and the main locking plate;

[0005] The main lock plate includes a main lock plate docking portion, a main lock plate welding mounting portion and a height adjustment block fixed above the main lock plate docking portion, one side end of the height adjustment block is provided with an adjustment block latch, the main lock plate welding mounting portion is provided with a welding column limiting groove for limiting the silver point welding column, the middle part of the upper guide plate is provided with a height adjustment port docking with the height adjustment block, and the side wall of the height adjustment port is provided with height locking teeth arranged at intervals and corresponding to the adjustment block latch.

[0006] The welding adjustment assembly also includes a locking plug plate, the silver-spot welding column is provided with a front socket and a rear socket, the locking plug plate is provided with a locking plug plate pair socket corresponding to the front socket and the rear socket, and the main lock plate docking part is provided with a main lock plate docking cavity that is communicated with the welding column limiting groove and is used for the locking plug plate to be placed.

[0007] The main lock plate docking portion is provided with a plug plate insertion opening and a plug plate limiting stopper which are staggered and used for limiting the locking plug plate at the front and rear ends of the main lock plate docking cavity.

[0008] The welding adjustment assembly also includes an L-shaped block detachably arranged in the height adjustment opening, and the upper guide plate is provided with an upper guide plate positioning groove for positioning the L-shaped block at the height adjustment opening.

[0009] The silver spot welding device also includes a horizontal adjustment component arranged between the main driving plate and the welding adjustment component, and the horizontal adjustment component includes a left and right adjustment block, a main block and a front and rear adjustment block arranged in sequence from top to bottom, and the sides of the left and right adjustment blocks and the front and rear adjustment blocks are both provided with adjustment fixing seats, and the adjustment fixing seats are provided with adjustment screws that are against the main block and are used for horizontal position adjustment.

[0010] The left and right adjustment blocks and the front and rear adjustment blocks are both provided with adjustment block limiting feet, and the upper and lower ends of the leading block are provided with leading block limiting grooves corresponding to the adjustment block limiting feet, and the adjustment block limiting feet are dovetail-shaped structures.

[0011] The advantages of the silver spot welding device for the moving contact of the circuit breaker of the utility model are: preliminary buffering is provided during silver spot welding to reduce and lower the impact on the silver spot welding column; the adjustment block clamping teeth interact with the height locking teeth to adjust the height of the silver spot welding column after installation, which is more flexible to use and is not easy to loosen after adjustment, the structure is more solid, and the welding accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a structural schematic diagram of the silver spot welding device for the moving contact of the circuit breaker of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the silver spot welding device of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the welding adjustment component of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the main lock plate of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the upper guide plate of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the silver spot welding column of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the locking plug plate of the utility model;

[0020] Figure 8 It is a structural schematic diagram of the horizontal adjustment component of the utility model. DETAILED DESCRIPTION

[0021] like Figure 1-8 As shown, the utility model relates to a silver spot welding device for a moving contact of a circuit breaker, comprising a silver spot upper welding device 1, a welding support device 2, a moving contact clamping cylinder 3 and a moving contact 4, wherein the silver spot upper welding device 1 comprises a welding support 6, a welding push cylinder 7 arranged on the welding support 6, a guide column 9, a main driving plate 8 sleeved on the guide column 9 and connected to the welding push cylinder 7, and a welding adjustment component 10 fixed below the main driving plate 8, wherein the welding adjustment component 10 comprises an upper guide plate 13, a main lock plate 14, a silver spot welding column 15 for welding the moving contact 4, a welding column fixing block 16, a bolt 17 and a buffer spring 18, wherein the upper guide plate 13 and the main lock plate 14 are connected by the bolt 17, and the spring 18 is sleeved on the bolt 17 and placed between the upper guide plate 13 and the main lock plate 14; the main lock plate 14 comprises a main lock plate docking portion 22, a main lock plate welding mounting portion 23 and a fixing portion A height adjustment block 24 is fixed above the main lock plate docking portion 22, and an adjustment block latch tooth 25 is provided at one side end of the height adjustment block 24. A welding column limiting groove 26 for limiting the silver point welding column 15 is provided in the main lock plate welding mounting portion 23. A height adjustment port 28 docking with the height adjustment block 24 is provided in the middle of the upper guide plate 13. The side wall of the height adjustment port 28 is provided with a height locking tooth 29 arranged at intervals and corresponding to the adjustment block latch tooth 25. When the silver point welding column 15 performs silver point welding on the moving contact 4, the silver point upper welding device can perform preliminary buffering during contact through the buffer spring 18 to reduce and lower the impact on the silver point welding column 15. The adjustment block latch tooth 25 of the height adjustment block 24 interacts with the height locking tooth 29 of the height adjustment port 28, and the height of the silver point welding column 15 after installation can be adjusted. It is more flexible to use and not easy to loosen after adjustment. The structure is more solid and the welding accuracy is higher.

[0022] The welding adjustment assembly 10 also includes a locking plug plate 19, the silver-spot welding column 15 is provided with a front socket 31 and a rear socket 32, the locking plug plate 19 is provided with a locking plug plate pair socket 33 corresponding to the front socket 31 and the rear socket 32, and the main lock plate docking portion 22 is provided with a main lock plate docking cavity 34 that is communicated with the welding column limiting groove 26 and is used for the locking plug plate 19 to be inserted, which replaces the traditional method of fixing only by the welding column fixing block 16, and can effectively prevent the silver-spot welding column 15 from shifting up and down after frequent welding, and the height changes and affects the welding accuracy.

[0023] The main lock plate docking portion 22 is provided with staggered plug plate insertion openings 35 and plug plate limiting stops 36 at the front and rear ends of the main lock plate docking cavity 34 and used to limit the locking plug plate 19. The overall structure is compact, the connection is tight, and the overall structure is stable.

[0024] The welding adjustment assembly 10 also includes an L-shaped block 20 detachably arranged in the height adjustment port 28. The upper guide plate 13 is provided with an upper guide plate positioning groove 38 for positioning the L-shaped block 20 at the height adjustment port 28. The L-shaped block 20 can be installed and removed from the main locking plate 14 as needed to facilitate subsequent maintenance.

[0025] The silver spot welding device 1 also includes a horizontal adjustment component 11 arranged between the main driving plate 8 and the welding adjustment component 10, and the horizontal adjustment component 11 includes a left and right adjustment block 40, a main block 41 and a front and rear adjustment block 42 arranged in sequence from top to bottom. The left and right adjustment blocks 40 and the front and rear adjustment blocks 42 are both provided with adjustment fixing seats 44 on the sides, and the adjustment fixing seats 44 are provided with adjustment screws 45 that are against the main block 41 and are used for horizontal position adjustment. The welding device can adjust the left and right front and rear positions, and is more flexible to use. The adjustment device has a compact structure and occupies little space.

[0026] The left and right adjustment blocks 40 and the front and rear adjustment blocks 42 are both provided with adjustment block limiting feet 46. The upper and lower ends of the main guide block 41 are provided with main guide block limiting grooves corresponding to the adjustment block limiting feet 46. The adjustment block limiting feet 46 are dovetail-shaped structures, and the movement is stable and reliable.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A silver spot welding device for a circuit breaker moving contact, comprising a silver spot welding device (1), a welding support device (2), a moving contact clamping cylinder (3) and a moving contact (4), characterized in that: The silver spot welding device (1) comprises a welding support (6), a welding push cylinder (7) arranged on the welding support (6), a guide column (9), a main driving plate (8) sleeved on the guide column (9) and connected to the welding push cylinder (7), and a welding adjustment component (10) fixed below the main driving plate (8); the welding adjustment component (10) comprises an upper guide plate (13), a main locking plate (14), a silver spot welding column (15) for welding the moving contact (4), a welding column fixing block (16), a bolt (17) and a buffer spring (18); the upper guide plate (13) and the main locking plate (14) are connected by the bolt (17); the spring (18) is sleeved on the bolt (17) and is placed between the upper guide plate (13) and the main locking plate (14); The main lock plate (14) comprises a main lock plate docking portion (22), a main lock plate welding mounting portion (23) and a height adjustment block (24) fixed above the main lock plate docking portion (22); an adjustment block latching tooth (25) is provided at one side end of the height adjustment block (24); a welding column limiting groove (26) for limiting the position of the silver point welding column (15) is provided in the main lock plate welding mounting portion (23); a height adjustment opening (28) docking with the height adjustment block (24) is provided in the middle of the upper guide plate (13); and a height locking tooth (29) arranged at intervals and corresponding to the adjustment block latching tooth (25) is provided on the side wall of the height adjustment opening (28).

2. The circuit breaker moving contact silver spot welding device according to claim 1, characterized in that: The welding adjustment assembly (10) further comprises a locking plug plate (19), the silver spot welding column (15) is provided with a front plug opening (31) and a rear plug opening (32), the locking plug plate (19) is provided with a locking plug plate pairing plug opening (33) corresponding to the front plug opening (31) and the rear plug opening (32), and the main lock plate docking portion (22) is provided with a main lock plate docking cavity (34) which is in communication with the welding column limiting groove (26) and is used for inserting the locking plug plate (19).

3. The silver spot welding device for moving contact of circuit breaker according to claim 2, characterized in that: The main lock plate docking portion (22) is provided with staggered plug plate insertion openings (35) and plug plate limit stops (36) at the front and rear ends of the main lock plate docking cavity (34) and used to limit the locking plug plate (19).

4. The circuit breaker moving contact silver spot welding device according to claim 1, characterized in that: The welding adjustment assembly (10) further comprises an L-shaped block (20) detachably arranged in the height adjustment opening (28), and the upper guide plate (13) is provided with an upper guide plate positioning groove (38) for positioning the L-shaped block (20) at the height adjustment opening (28).

5. The circuit breaker moving contact silver spot welding device according to claim 1, characterized in that: The silver spot welding device (1) further comprises a horizontal adjustment component (11) arranged between the main driving plate (8) and the welding adjustment component (10), the horizontal adjustment component (11) comprising a left and right adjustment block (40), a main block (41) and a front and rear adjustment block (42) arranged in sequence from top to bottom, and the side portions of the left and right adjustment block (40) and the front and rear adjustment block (42) are both provided with an adjustment fixing seat (44), and the adjustment fixing seat (44) is provided with an adjustment screw (45) which abuts against the main block (41) and is used for adjusting the horizontal position.

6. The circuit breaker moving contact silver spot welding device according to claim 5, characterized in that: The left and right adjustment blocks (40) and the front and rear adjustment blocks (42) are both provided with adjustment block limit feet (46), and the upper and lower ends of the leading block (41) are provided with leading block limit grooves corresponding to the adjustment block limit feet (46), and the adjustment block limit feet (46) are dovetail-shaped structures.

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