A circuit breaker housing welding tool

Abstract

The utility model discloses a circuit breaker shell welding frock, including circuit breaker shell, one side detachable installation of circuit breaker shell inner wall has the blocking pin locating plate, the blocking pin locating plate surface is equipped with the hole group, the hole group has the cylinder assembly for adapting hole group on corresponding, and cylinder assembly has different diameter size, cylinder assembly is fixed with circuit breaker shell welding, and cylinder assembly is the circuit breaker inside for hanging spring and realizes the energy storage and release mechanism, and the blocking pin locating plate is a frock, and the purpose is to position the cylinder assembly fast welding in the circuit breaker shell inside for the convenience of staff, to facilitate the subsequent completion to the spring's connection, and this blocking pin locating plate can also achieve quick -dismounting blocking pin locating plate to carry out the next work's welding operation simultaneously in quick positioning.

Description

Technical Field

[0001] This utility model belongs to the field of tooling technology, specifically relating to a welding tooling for circuit breaker housings. Background Technology

[0002] The springs inside the circuit breaker need to be installed through support points, and most of them use cylinders to suspend the springs. The cylinders need to be welded and fixed inside the circuit breaker housing.

[0003] Traditional welding methods mostly rely on the worker's skill level to complete the welding, which is not very friendly to novice workers. They cannot independently complete the welding of columns, and they lack positioning tools to achieve the positioning function during the welding process. Utility Model Content

[0004] The purpose of this invention is to provide a welding fixture for circuit breaker housings to solve the welding positioning problem in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A circuit breaker housing welding fixture includes a circuit breaker housing. A stop pin positioning plate is detachably installed on one side of the inner wall of the circuit breaker housing. The surface of the stop pin positioning plate is provided with a group of holes. A cylindrical assembly for adapting to the group of holes is provided on the group of holes. The cylindrical assembly has different diameters. The cylindrical assembly is welded and fixed to the circuit breaker housing. The cylindrical assembly is used inside the circuit breaker to suspend the spring to realize the energy storage and release mechanism.

[0006] Preferably, the hole group includes rectangular holes and circular holes, and the size and shape of the rectangular holes and circular holes are not unique. The hole group is formed on the stop pin positioning plate, and the purpose of using non-unique sizes and shapes is to accommodate cylindrical components of different diameters.

[0007] Preferably, the circular hole includes a concentric hole, and two positioning holes are provided on one side of the circuit breaker housing. The stop pin positioning plate is provided with a concentric hole that is concentrically matched with the positioning hole. Positioning sleeves are inserted and installed in the concentric hole and the positioning hole.

[0008] Preferably, the rectangular hole includes a first rectangular groove, a second rectangular groove, and a third rectangular groove. The first rectangular groove is located near the left concentric hole of the group, the second rectangular groove is located near the right concentric hole, and the third rectangular groove is located at the right end of the stop pin positioning plate.

[0009] Preferably, the circular hole further includes a circular hole, which is disposed above the concentric hole on the left side. The first rectangular groove, the second rectangular groove, the third rectangular groove and the circular hole are all provided with an arc-shaped notch on one side, and the arc-shaped notch is used to adapt to cylindrical components of different diameters.

[0010] Preferably, the arc-shaped notches are all oriented to the left. After welding, the arc-shaped notches need to be pushed to the left to disengage each arc-shaped notch from its position on each cylindrical component before the stop pin positioning plate can be removed.

[0011] Preferably, the arc-shaped notch can be located on the left side of any rectangular hole. The purpose of "any left side" is not to limit it to a specific location; it can be set at any position in the left direction according to the tooling requirements, as long as the arc-shaped notch remains within the rectangular hole.

[0012] Preferably, the cylindrical assembly includes a splitting torsion spring stop, a thick round rod, a thin round rod, and an energy storage and reset spring pull rod. The splitting torsion spring stop mates with the arc-shaped notch of the round hole, the thick round rod mates with the arc-shaped notch of the first rectangular groove, the thin round rod mates with the arc-shaped notch of the second rectangular groove, and the energy storage and reset spring pull rod mates with the arc-shaped notch of the third rectangular groove.

[0013] Preferably, one end of the split torsion spring stop has a stop block, the diameter of which is larger than the diameter of the arc-shaped notch on the first rectangular groove. Since the diameter of this stop block is larger than the arc-shaped notch, it is necessary to move the stop pin positioning plate to the left and remove it. The purpose of the stop block is also to facilitate the suspension of the spring and prevent it from disengaging.

[0014] Preferably, when the cylindrical assembly is concentrically fitted with the arc-shaped notch, the side of the cylindrical assembly that does not enter the arc-shaped notch is a spot-welded surface. The purpose of the spot-welded surface is to initially fix the cylindrical assembly to the circuit breaker housing.

[0015] The technical solution of this utility model has the following beneficial effects: 1. The stop pin positioning plate is a tooling fixture designed to facilitate workers in quickly positioning and welding cylindrical components inside the circuit breaker housing, so as to facilitate the subsequent connection of the spring; at the same time, this stop pin positioning plate can be quickly positioned and also quickly disassembled for the next welding operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model before welding.

[0018] Figure 2 This is a schematic diagram of the welding process of this utility model.

[0019] Figure 3 This is a schematic diagram of the circuit breaker housing of this utility model.

[0020] Figure 4 This is an installation diagram of the stop pin positioning plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the disassembled positioning sleeve structure of this utility model.

[0022] Figure 6 This is a plan view of the positioning plate of the stop pin of this utility model.

[0023] Figure 7 This is a plan view of the stop pin positioning plate of this utility model.

[0024] Reference numerals: 10, circuit breaker housing; 20, stop pin positioning plate; 201, concentric hole; 202, first rectangular slot; 203, round hole; 204, arc-shaped notch; 205, second rectangular slot; 206, third rectangular slot; 30, splitting torsion spring stop rod; 301, stop block; 40, thick round rod; 50, positioning sleeve; 60, positioning hole; 70, thin round rod; 80, energy storage reset spring pull rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Example 1: refer to Figures 1-7 A circuit breaker housing welding fixture includes a circuit breaker housing 10. A stop pin positioning plate 20 is detachably installed on one side of the inner wall of the circuit breaker housing 10. The surface of the stop pin positioning plate 20 is provided with a group of holes. A cylindrical assembly for adapting to the group of holes is provided on the group of holes. The cylindrical assembly has different diameters. The cylindrical assembly is welded and fixed to the circuit breaker housing 10. The cylindrical assembly is used in the circuit breaker to suspend the spring to realize the energy storage and release mechanism.

[0027] In the above scheme, the springs inside the circuit breaker (mainly including closing springs and opening springs) provide core power for the rapid and reliable opening and closing operations of the circuit breaker through an energy storage and release mechanism, while ensuring contact stability, opening speed, and system safety. The springs need to be suspended by cylindrical assemblies. The stop pin positioning plate 20 in this scheme is a tooling fixture, designed to facilitate the quick positioning and welding of the cylindrical assembly inside the circuit breaker housing 10 by the operator, facilitating subsequent connection of the springs. Simultaneously, the stop pin positioning plate 20 allows for quick positioning and also enables rapid disassembly for subsequent welding operations. Figure 1The diagram in the middle shows the circuit breaker housing 10 before welding, without the retaining pin positioning plate 20 being placed inside.

[0028] In a preferred embodiment, the hole group includes rectangular and circular holes, and the size and shape of the rectangular and circular holes are not unique. The hole group is formed on the stop pin positioning plate 20, and the purpose of using non-unique sizes and shapes is to accommodate cylindrical components of different diameters; It should be noted that the hole group in this solution can also be a polygonal hole or other irregular shape. The specific shape and structure of the hole group need to be manufactured according to the product characteristics.

[0029] Preferred Solution Reference Figures 2-5 The circular hole includes a concentric hole 201. Two positioning holes 60 are provided on one side of the circuit breaker housing 10. The stop pin positioning plate 20 is provided with a concentric hole 201 that is concentric with the positioning hole 60. A positioning sleeve 50 is inserted and installed in the concentric hole 201 and the positioning hole 60.

[0030] In the above scheme, the detachable connection of the stop pin positioning plate 20 is achieved by the positioning sleeve 50 fitting inside the concentric hole 201 and the positioning hole 60. When the positioning sleeve 50 is inside the concentric hole 201 and the positioning hole 60, the stop pin positioning plate 20 is located outside the inner wall of the circuit breaker housing 10. When disassembly is required, the positioning sleeve 50 inside the concentric hole 201 and the positioning hole 60 needs to be removed, and the stop pin positioning plate 20 can be easily removed. This method only requires two positioning sleeves 50 to achieve the positioning purpose, which greatly improves the efficiency of installation and disassembly. Extended Application: The stop pin positioning plate 20 can be made of magnetic material, allowing it to adhere to the inner wall of the circuit breaker housing 10. Combined with the positioning sleeve 50, this significantly improves stability while positioning. It's important to note that because the stop pin positioning plate 20 is made of magnetic material, the outer shell of the circuit breaker housing 10, which is typically made of iron, can also be attracted by it. Furthermore, the high temperatures generated during welding may demagnetize the stop pin positioning plate 20. This solution uses spot welding; after the cylindrical assembly is initially fixed inside the circuit breaker housing 10, the stop pin positioning plate 20 needs to be removed, rather than fully welded, to avoid demagnetization due to high temperatures. Even if demagnetization occurs, it does not affect the use of the stop pin positioning plate 20; it only loses its ability to adhere to the inner wall of the circuit breaker housing 10. Moreover, the stop pin positioning plate 20 is a tooling component and can be replaced or replaced if damaged.

[0031] Preferred Solution Reference Figure 7The rectangular hole includes a first rectangular groove 202, a second rectangular groove 205, and a third rectangular groove 206. The first rectangular groove 202 is located near the left concentric hole 201 of the group, the second rectangular groove 205 is located near the right concentric hole 201, and the third rectangular groove 206 is located at the right end of the stop pin positioning plate 20.

[0032] In a preferred embodiment, the rectangular holes are extra space reserved for welding convenience during the welding process of the cylindrical components.

[0033] The circular hole also includes a circular hole 203, which is located above the concentric hole 201 on the left side. The first rectangular groove 202, the second rectangular groove 205, the third rectangular groove 206 and the circular hole 203 are all provided with an arc-shaped notch 204 on one side. The arc-shaped notch 204 is used to adapt to cylindrical components of different diameters.

[0034] In the above preferred embodiment, cylindrical components of different diameters are used to accommodate springs of different sizes, and the arc-shaped notch 204 is matched with the corresponding cylindrical component. During the welding process, the arc-shaped notch 204 is also used to determine the placement position of the corresponding cylindrical component. The corresponding cylindrical component is placed in the arc-shaped notch 204 for welding. Each arc-shaped notch 204 is a welding point.

[0035] Further reference Figures 4-7 The arc-shaped notch 204 is uniformly set to the left.

[0036] In a further implementation, the arc-shaped notches 204 are uniformly oriented to the left after welding. They need to be pushed to the left so that each arc-shaped notch 204 is disengaged from the position of each cylindrical component before the stop pin positioning plate 20 can be removed.

[0037] Preferably, the arc-shaped notch 204 can be located on the left side of any rectangular hole. The purpose of "any left side" is not to limit it to a specific position as shown in the figure. It can be set at any position in the left direction according to the tooling requirements, as long as the arc-shaped notch 204 remains within the rectangular hole. It should be noted that: there are 205 rectangular grooves in the figure, and the number of corresponding thin round rods 70 welded matches the number of the second rectangular grooves 205.

[0038] refer to Figures 1-7 The cylindrical assembly includes a splitting torsion spring stop 30, a thick round rod 40, a thin round rod 70, and an energy storage and reset spring pull rod 80. The splitting torsion spring stop 30 engages with the arc-shaped notch 204 of the round hole 203, the thick round rod 40 engages with the arc-shaped notch 204 of the first rectangular groove 202, the thin round rod 70 engages with the arc-shaped notch 204 of the second rectangular groove 205, and the energy storage and reset spring pull rod 80 engages with the arc-shaped notch 204 of the third rectangular groove 206.

[0039] In the above scheme, during the welding process, after the stop pin positioning plate 20 is placed, two positioning sleeves 50 are inserted into the two positioning holes 60 respectively to fix the stop pin positioning plate 20. The splitting torsion spring stop rod 30 is placed into the arc-shaped notch 204 on the round hole 203. The right side of the arc-shaped notch 204 is the reserved welding space, that is, the rectangular hole. The splitting torsion spring stop rod 30 is spot welded with a welding gun to initially fix it inside the circuit breaker housing 10. The thick round rod 40, the thin round rod 70 and the energy storage reset spring pull rod 80 are spot welded in sequence. After the spot welding is completed, the positioning sleeves 50 are removed, the stop pin positioning plate 20 is moved to the left and removed, and finally each cylindrical assembly is fully welded, and the welding is completed.

[0040] Furthermore, one end of the split-joint torsion spring stop bar 30 has a stop block 301, the diameter of which is larger than the diameter of the arc-shaped notch 204 on the first rectangular groove 202.

[0041] Since the diameter of the stop block 301 is larger than that of the arc-shaped notch 204, the stop pin positioning plate 20 needs to be moved to the left and removed. At the same time, the purpose of the stop block 301 is to facilitate the suspension spring and prevent the spring from coming off.

[0042] When the cylindrical component is concentrically fitted with the arc-shaped notch 204, the side of the cylindrical component that does not enter the arc-shaped notch 204 is the spot welding surface.

[0043] In summary, the purpose of spot welding is to initially fix the cylindrical assembly to the circuit breaker housing 10.

[0044] The specific implementation process of this utility model is as follows: During the welding process, after the stop pin positioning plate 20 is placed, two positioning sleeves 50 are inserted into the two positioning holes 60 respectively to fix the stop pin positioning plate 20. The splitting torsion spring stop rod 30 is placed into the arc-shaped notch 204 on the round hole 203. The right side of the arc-shaped notch 204 is the reserved welding space, that is, the rectangular hole. The splitting torsion spring stop rod 30 is spot welded with a welding gun to initially fix it inside the circuit breaker housing 10. The thick round rod 40, the thin round rod 70 and the energy storage reset spring pull rod 80 are spot welded in sequence. After the spot welding is completed, the positioning sleeves 50 are removed and the stop pin positioning plate 20 is moved to the left and removed (in the direction of the arrow in the figure). Finally, each cylindrical assembly is fully welded, and the welding is completed.

[0045] The above embodiments are merely exemplary models of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions can be made to this utility model within its substance and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached circle, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationship should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between components; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

Claims

1. A welding fixture for circuit breaker housings, characterized in that: The circuit breaker includes a circuit breaker housing (10), on one side of the inner wall of the circuit breaker housing (10) a stop pin positioning plate (20) is detachably installed, the surface of the stop pin positioning plate (20) is provided with a group of holes, and the group of holes is provided with a cylindrical assembly for adapting to the group of holes. The cylindrical assembly has different diameters and is welded and fixed to the circuit breaker housing (10). The cylindrical assembly is used in the circuit breaker to suspend the spring to realize the energy storage and release mechanism.

2. The circuit breaker housing welding fixture according to claim 1, characterized in that: The hole group includes rectangular holes and circular holes, and the size and shape of the rectangular holes and circular holes are not unique.

3. The circuit breaker housing welding fixture according to claim 2, characterized in that: The circular hole includes a concentric hole (201). The circuit breaker housing (10) has two positioning holes (60) on one side. The stop pin positioning plate (20) has a concentric hole (201) that is concentric with the positioning hole (60). A positioning sleeve (50) is inserted into the concentric hole (201) and the positioning hole (60).

4. The circuit breaker housing welding fixture according to claim 2, characterized in that: The rectangular hole includes a first rectangular groove (202), a second rectangular groove (205), and a third rectangular groove (206). The first rectangular groove (202) is located near the left concentric hole (201) of the group, the second rectangular groove (205) is located near the right concentric hole (201), and the third rectangular groove (206) is located at the right end of the stop pin positioning plate (20).

5. The circuit breaker housing welding fixture according to claim 4, characterized in that: The circular hole also includes a circular hole (203), which is located above the left concentric hole (201). The first rectangular groove (202), the second rectangular groove (205), the third rectangular groove (206) and the circular hole (203) are all provided with an arc-shaped notch (204) on one side. The arc-shaped notch (204) is used to adapt to cylindrical components of different diameters.

6. The circuit breaker housing welding fixture according to claim 5, characterized in that: The arc-shaped notch (204) is uniformly oriented to the left.

7. The circuit breaker housing welding fixture according to claim 6, characterized in that: The arc-shaped notch (204) can be located to the left of any rectangular hole.

8. The circuit breaker housing welding fixture according to claim 5, characterized in that: The cylindrical assembly includes a splitting torsion spring stop (30), a thick round rod (40), a thin round rod (70), and an energy storage and reset spring pull rod (80). The splitting torsion spring stop (30) engages with the arc-shaped notch (204) of the round hole (203), the thick round rod (40) engages with the arc-shaped notch (204) of the first rectangular groove (202), the thin round rod (70) engages with the arc-shaped notch (204) of the second rectangular groove (205), and the energy storage and reset spring pull rod (80) engages with the arc-shaped notch (204) of the third rectangular groove (206).

9. A circuit breaker housing welding fixture according to claim 8, characterized in that: One end of the split-joint torsion spring stop bar (30) has a stop block (301), the diameter of which is larger than the diameter of the arc-shaped notch (204) on the first rectangular groove (202).

10. A circuit breaker housing welding fixture according to claim 5, characterized in that: When the cylindrical component is concentrically fitted with the arc-shaped notch (204), the side of the cylindrical component that does not enter the arc-shaped notch (204) is the spot welding surface.

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