Circuit breaker housing welding forming tooling

Abstract

The present invention relates to a circuit breaker housing welding forming tool. The circuit breaker welding forming tool comprises a housing positioning part and a sleeve positioning part, the housing positioning part comprises a base, a bottom plate positioning piece, an opposite outer positioning support body, an inner positioning support body and a top plate positioning piece, the sleeve positioning part comprises a sleeve positioning piece; a supporting channel steel positioning structure is provided on the base, the bottom plate positioning piece is used to support and position the bottom plate, the outer positioning support bodies are arranged in pairs, and a positioning matching part for positioning the electrode mounting hole is provided thereon, the inner positioning support body is connected between the two opposite outer positioning support bodies and is coaxial with the outer positioning support body; the top plate positioning piece has a stud positioning hole for the stud on the top plate to pass through; the sleeve positioning part comprises a sleeve positioning piece, and the sleeve positioning piece is provided with a sleeve positioning hole. The circuit breaker housing welding forming tool is adopted, the operation steps are simple, and the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to a circuit breaker housing welding forming tool. Background Art

[0002] The three-phase common box type circuit breaker is composed of a circuit breaker housing assembly and a mechanism box hung on one side. The structure of the circuit breaker housing assembly is as follows: Figure 1 and Figure 2 As shown, the circuit breaker housing assembly is formed by welding a base frame, a surrounding plate 101 and a top plate 102, wherein the base frame includes a bottom plate 103 and a support channel steel 104 welded and fixed to the bottom of the bottom plate 103, and a connection hole 105 is provided on the support channel steel 104; the surrounding plate 101 is formed by connecting and bending a plate and welding the seams, and a plurality of studs 106 are provided on the top plate 102; a three-phase main circuit structure is provided in the surrounding plate 101, and each main circuit structure includes a moving and static end electrode coaxially arranged through an insulating inner shell and a moving conductive rod for realizing the separation and closing of the moving and static end electrodes through reciprocating motion, and three pairs of moving end electrode mounting holes 108 and static end electrode mounting holes 107 for coaxially mounting the moving and static end electrodes of the corresponding main circuit structure are provided on the left and right side walls of the surrounding plate, and the apertures of the moving end electrode mounting holes 108 and the static end electrode mounting holes 107 are the same, and the two are coaxial. An operating mechanism is arranged in the mechanism box, and the operating mechanism includes a main shaft and a crank arm coaxially sleeved on the main shaft. The main shaft passes through the main shaft mounting hole of the front side wall of the enclosure 101, and cooperates with a main shaft sleeve 109 coaxial with the main shaft mounting hole provided on the inner wall surface of the rear side wall of the enclosure 101 to ensure that the main shaft can normally drive the conductive rod to move through the crank arm. A buffer plate 110 parallel to the bottom plate is also provided on the inner wall surface of the rear side wall of the enclosure 101, and a center hole is provided in the center of the buffer plate 110.

[0003] In the prior art, the assembly of the circuit breaker housing assembly is usually completed by workers manually welding the various components after splicing them together, that is, first welding the bottom plate and the supporting channel steel together, then welding the seams on the enclosure that forms the enclosure, and then welding the enclosure to the bottom plate, and then welding the enclosure to the top plate, and finally welding the large shaft sleeve to the enclosure. Each welding process requires positioning of the corresponding components, the operation process is cumbersome, and the assembly efficiency is low. Summary of the invention

[0004] The object of the present invention is to provide a circuit breaker housing welding forming tool to solve the technical problems of complicated operation and low assembly efficiency in the prior art when assembling the circuit breaker housing.

[0005] To achieve the above-mentioned purpose, the technical solution of the circuit breaker housing welding forming tooling of the present invention is:

[0006] The circuit breaker housing welding forming tooling includes a housing positioning part and a sleeve positioning part. The housing positioning part includes:

[0007] A base, on which a support channel steel positioning structure for positioning the support channel steel on the circuit breaker housing is provided;

[0008] A bottom plate positioning member is arranged on the base and is used to support and position the bottom plate;

[0009] External positioning supports are arranged in pairs on the base, the two pairs of external positioning supports are coaxial and arranged opposite to each other in the length direction of the base, and the external positioning supports have positioning matching parts for positioning the electrode mounting holes, and are used for externally supporting the positioning enclosure;

[0010] An inner positioning support body, connected between two opposite outer positioning supports and coaxial with the outer positioning supports, for supporting and positioning the enclosure plate internally;

[0011] The top plate positioning member comprises a column erected on the base and a pressing plate connected to the column, wherein the pressing plate is provided with a stud positioning hole for the stud on the top plate to pass through;

[0012] The shaft sleeve positioning part comprises a shaft sleeve positioning piece, and the shaft sleeve positioning piece is provided with a shaft sleeve positioning hole.

[0013] Beneficial effects: When welding the circuit breaker housing assembly, the circuit breaker housing welding and forming tool of the present invention supports and positions the bottom plate through the bottom plate positioning piece, and the bottom frame of the circuit breaker housing can be positioned as a whole by fixing the support channel steel positioning structure on the base with the support channel steel on the circuit breaker housing; then the enclosure is positioned using the external positioning support and the internal positioning support to ensure that each pair of electrode mounting holes on the enclosure are coaxial; after the enclosure is positioned, the top plate is positioned through the top plate positioning piece, and finally the sleeve is positioned through the sleeve positioning piece. The circuit breaker housing welding and forming tool of the present invention supports and positions each component relative to the circuit breaker housing before welding, and welds in sequence after the position is determined, avoiding the operation mode of positioning each component for welding, and the overall operation is simple, which improves the assembly efficiency of the product.

[0014] Furthermore, a support seat for supporting the external positioning support body is provided on the base, and the external positioning support body is slidably assembled on the support seat along the length direction of the base.

[0015] Beneficial effect: the outer positioning support body is slidably assembled on the support seat, that is, the position of the outer positioning support body in the length direction of the base can be adjusted, thereby being adaptable to positioning circuit breaker enclosures of different sizes.

[0016] Furthermore, the outer positioning support body is plug-fitted with the inner positioning support body.

[0017] Beneficial effect: It is easy to install the inner positioning support body, and it is easier to ensure that the outer positioning support body is coaxial with the inner positioning support body.

[0018] Furthermore, the outer positioning support body and the inner positioning support body are plug-fitted with each other through a plug hole provided on one of them and a protrusion provided on the other one.

[0019] Beneficial effects: The plug-in matching form is simple and easy to operate.

[0020] Furthermore, the support seat is provided with a guide sleeve whose axis extends along the length direction of the base, and the external positioning support body includes a positioning shaft that coaxially penetrates the guide sleeve and slides with the guide sleeve in the length direction of the base, and the positioning matching part is arranged at the end of the positioning shaft.

[0021] Beneficial effects: The external positioning support body includes a positioning shaft, which is easy to slide. On the one hand, the guide sleeve supports the positioning shaft to ensure the stability of the positioning shaft when it moves; on the other hand, it can prevent the positioning shaft from shifting during the movement, ensuring its coaxiality with the positioning shaft.

[0022] Furthermore, the positioning mating portion is formed by a stepped limiting boss connected to the end of the positioning shaft and coaxial with the positioning shaft, the stepped limiting boss includes a coaxial penetration section with a smaller outer diameter for coaxially penetrating into the corresponding electrode mounting hole and a stop mating section with a larger outer diameter for mating with the enclosure stop, and the inner positioning support body is plugged into and mated with the coaxial penetration section.

[0023] Beneficial effect: On the one hand, the stepped limiting boss supports the enclosure externally; on the other hand, when the positioning shaft moves, it can drive the stepped limiting boss to press the enclosure tightly and position the electrode mounting hole on the enclosure in coordination with the internal positioning support body.

[0024] Furthermore, the coaxial penetration section is a tapered section whose outer diameter gradually decreases along the length direction of the base, and the maximum outer diameter of the tapered section is adapted to the outer diameter of the electrode mounting hole.

[0025] Beneficial effect: It is conducive to the penetration of the coaxial penetration section, and at the same time ensures the coaxiality of the coaxial penetration section and the electrode mounting hole to more accurately position the enclosure.

[0026] Furthermore, there are two pairs of external positioning supports, which are arranged at intervals in the width direction of the base, and are respectively used to position two pairs of electrode mounting holes on the enclosure. Among the two pairs of external positioning supports, the two external positioning supports on the same axial side of the inner positioning support are connected by a connecting piece to achieve synchronous movement.

[0027] Beneficial effect: By pushing the connecting piece, the two outer positioning support bodies on the same axial side of the inner positioning support body can be moved synchronously, thereby improving the positioning efficiency and further improving the product assembly efficiency.

[0028] Furthermore, the shaft sleeve positioning member is fixedly connected to the inner positioning support body.

[0029] Beneficial effect: The shaft sleeve positioning piece is connected to the inner positioning support body to position the shaft sleeve of the large shaft, thereby saving space.

[0030] Furthermore, the bottom plate positioning member includes two vertically connected vertical plates erected on the base, the vertical plates include a low plate section with a lower height and a high plate section with a higher height that are connected to each other, a limiting step is formed between the low plate section and the high plate section, the low plate sections of the two vertical plates are vertically connected, the step facade of the limiting step forms a positioning surface for positioning the bottom plate, and the step tread of the limiting step forms a supporting surface for supporting the bottom plate.

[0031] Beneficial effect: The bottom plate positioning piece adopts the form of vertical connection of two upright plates, which has a simple structure and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a circuit breaker housing from one of the viewing angles mentioned in the background technology;

[0033] Figure 2 A schematic structural diagram of the circuit breaker housing mentioned in the background technology from another perspective;

[0034] Figure 3 It is a structural schematic diagram of the circuit breaker housing welding forming tooling of the present invention;

[0035] Figure 4 It is a structural schematic diagram of a support base in a circuit breaker housing welding forming tooling of the present invention;

[0036] Figure 5 It is a structural schematic diagram of a column in a circuit breaker housing welding forming tool of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the shaft sleeve positioning piece in the circuit breaker housing welding forming tooling of the present invention (showing the buffer plate positioning piece);

[0038] Figure 7 It is a schematic structural diagram of the outer positioning support body in the circuit breaker housing welding forming tooling of the present invention;

[0039] Figure 8 It is a structural schematic diagram of a bottom plate positioning member in a circuit breaker housing welding forming tooling of the present invention;

[0040] Fig. 9 A schematic diagram showing one angle of the circuit breaker housing welding forming tooling of the present invention used in conjunction with the circuit breaker housing;

[0041] Fig.10 It is a schematic diagram of another angle of the circuit breaker housing welding forming tooling of the present invention used in conjunction with the circuit breaker housing;

[0042] Fig.11 This is a schematic diagram showing another angle of the circuit breaker housing welding forming tooling of the present invention used in conjunction with the circuit breaker housing.

[0043] Explanation of the accompanying drawings: 1-base, 2-support seat, 3-connecting piece, 4-column, 5-external positioning support body, 6-pressure plate, 7-sleeve positioning piece, 8-inner positioning support body, 9-bottom plate positioning piece, 10-support channel steel positioning hole, 11-guide sleeve, 12-support body, 13-seat body, 14-pressure plate connecting plate, 15-column, 16-flange, 17-ear plate, 18-buffer plate positioning piece, 19-lap plate, 20-support plate, 21-stepped limiting boss, 22-coaxial penetration section, 23-stop fitting section, 24-bump, 25-vertical plate, 26-low plate section, 27-high plate section, 28-support surface, 29-limiting surface, 30-positioning shaft, 31-sleeve positioning hole, 32-buffer plate positioning hole.

[0044] 101-enclosure, 102-top plate, 103-bottom plate, 104-support channel steel, 105-connection hole, 106-stud, 107-static end electrode mounting hole, 108-moving end electrode mounting hole, 109-large shaft sleeve, 110-buffer plate. DETAILED DESCRIPTION

[0045] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0046] Specific embodiment of the circuit breaker housing welding positioning tool of the present invention:

[0047] The circuit breaker housing welding positioning tool is suitable for positioning, checking and welding the ZW20 series circuit breaker housing. The housing structure of the ZW20 series circuit breaker is as described in the background technology.

[0048] like Figure 3 As shown, the circuit breaker housing welding positioning tool includes a housing positioning part and a sleeve positioning part. The housing positioning part includes a base 1 and a bottom plate positioning member 9 arranged on the base 1. The base 1 is provided with a support channel steel positioning hole 10 and a bottom plate positioning member 9. The support channel steel positioning hole 10 forms a support channel steel positioning structure for positioning the support channel steel. The length direction of the base 1 is defined as the left-right direction, and the width direction is the front-back direction. The bottom plate positioning member 9 is formed by welding two vertical plates arranged on the base 1 at 90 degrees, as shown in FIG. Figure 8As shown, each vertical plate 25 includes two parts, namely, a lower plate section 26 with a lower height and a higher plate section 27 with a higher height, and the two vertical plates are vertically welded together through the lower plate section. A limiting step is formed between the lower plate section 26 and the higher plate section 27 of each vertical plate, and the step surface of the limiting step forms a supporting surface 28 for supporting and placing the bottom plate, and the step tread of the limiting step forms a limiting surface 29 for limiting the bottom plate. Among them, the limiting surface whose normal line extends along the length direction of the base cooperates with the bottom plate stop in the left and right directions to limit it, and the limiting surface whose normal line extends along the width direction of the base cooperates with the bottom plate stop in the front and back directions to limit it. In addition, the support channel steel positioning hole 10 can fix the support channel steel of the circuit breaker on the base through fasteners such as bolts, thereby positioning the bottom frame of the circuit breaker together with the bottom plate positioning piece 9. In other embodiments, the support channel steel positioning structure can also adopt a positioning groove.

[0049] The housing positioning part also includes an external positioning support body 5 arranged on the base 1. The external positioning support bodies 5 are arranged in pairs. The two external positioning support bodies 5 in a pair are coaxial and arranged opposite to each other in the length direction of the base. The external positioning support bodies 5 are provided with a positioning matching portion for positioning the electrode mounting hole so as to support and position the enclosure of the circuit breaker externally. Among the two external positioning support bodies 5 in a pair, one of the external positioning support bodies is used to be coaxially assembled on the static electrode mounting hole on the enclosure, and the other external positioning support body is used to be coaxially assembled on the dynamic electrode mounting hole corresponding to the static electrode mounting hole.

[0050] Specifically, the base 1 is provided with a pair of support seats 2 for supporting corresponding external positioning support bodies, and the external positioning support bodies are slidably assembled on the support seats 2 in the left-right direction. Figure 4 As shown, the support seat 2 includes a plate-shaped seat body 13, two plate-shaped support bodies 12 spaced apart and erected on the seat body 13, and a guide sleeve 11 fixed on the two support bodies 12 and with its axis extending in the left-right direction, the support body 12 having an arc-shaped support portion for supporting the guide sleeve 11, and the inside of the guide sleeve 11 is smooth. The seat body 13 and the support body 12 are welded and fixed, the support body 12 and the guide sleeve 11 are welded and fixed, and the seat body 13 is fixed to the base 1 by four hexagonal bolts.

[0051] The structure of the external positioning support 5 is as follows Figure 3 and Figure 7As shown, it includes a positioning shaft 30 coaxially penetrated on the corresponding guide sleeve 11 and a stepped limiting boss 21 coaxially fixedly connected to one end of the positioning shaft 30, and the stepped limiting boss 21 forms the positioning matching part of the external positioning support body 5. The positioning shaft 30 slides with the guide sleeve 11 in the left and right directions to make the position of the entire external positioning support body 5 adjustable in the left and right directions. The stepped limiting boss 21 includes a coaxial penetration section 22 with a smaller outer diameter and a stop fitting section 23 with a larger outer diameter. In this embodiment, the coaxial penetration section 22 is a conical section whose outer diameter gradually decreases along the length direction of the base, and the maximum outer diameter of the conical section is adapted to the aperture of the electrode mounting hole on the enclosure; the outer diameter of the stop fitting section 23 is larger than the aperture of the electrode mounting hole on the enclosure. When in use, the coaxial penetration section 22 penetrates into the corresponding electrode mounting hole, and the stop fitting section 23, due to its larger outer diameter, stops and fits with the side wall of the enclosure and is outside the electrode mounting hole. Since the two paired outer positioning supports are coaxial, when the two paired outer positioning supports are respectively inserted into the corresponding electrode mounting holes, each pair of electrode mounting holes on the enclosure is also in a coaxial state. In order to more accurately ensure the coaxiality of each pair of electrode mounting holes, the housing positioning part also includes an inner positioning support 8 arranged between the two paired outer positioning supports, and two annular grooves are arranged at intervals on the circumference of the inner positioning support 8. In this embodiment, the inner positioning support 8 is a connecting shaft, and the two ends of the connecting shaft are respectively plugged and matched with two stepped limiting bosses 21. Specifically, the two ends of the inner positioning support 8 have a plug hole, and the coaxial penetration section is provided with a convex block 24 with an axis extending in the left and right direction and plugged and matched with the plug hole. Under the action of the inner positioning support 8, on the one hand, it is easier to ensure the coaxiality of each pair of electrode mounting holes, and on the other hand, the inner positioning support can support the enclosure internally and keep a certain distance between the corresponding two outer positioning supports, so that when the outer positioning support 5 moves in the left and right direction, the stop fitting section 23 is not easy to squeeze the enclosure and deform it.

[0052] In this embodiment, there are two pairs of external positioning supports 5, and the two pairs of external positioning supports 5 are spaced apart in the front-to-back direction, and are respectively used to position the two pairs of electrode mounting holes on the enclosure. Among them, among the two external positioning supports, a connector 3 is connected between the two external positioning supports on the same axial side of the internal positioning support to achieve synchronous movement. Specifically, the end of the positioning shaft 30 away from the stepped limiting boss 21 is provided with a threaded hole of specification M10, and the connector 3 is a connecting plate, which is connected to the two positioning shafts 30 by two hexagonal bolts of specification M10, and the connector 3 remains parallel to the base 1. By pushing the connector 3, the two external positioning supports 5 can be simultaneously moved in the left and right directions, thereby improving the assembly efficiency. In other embodiments, the connector can also be a connecting rod, a connecting block and other components.

[0053] The housing positioning part also includes a top plate positioning member for positioning the top plate, and the top plate positioning member includes four columns 4 fixedly connected to the base 1 and a pressure plate 6 relatively fixed to the top of the columns 4. Figure 3 As shown, the four corners of the pressure plate 6 extend outwards and are fixed to the four columns respectively. The pressure plate is provided with 12 through holes for the studs on the top plate to pass through coaxially. Figure 5 As shown, it includes a flange 16 for fixing on the base 1, a column 15 welded at the center of the flange 16 and extending in the up and down directions, and a pressure plate connecting plate 14 fixedly connected to the top of the column 15, and the pressure plate connecting plate 14 is provided with a threaded hole for connecting with the pressure plate 6.

[0054] like Figure 3 and Figure 6 As shown, the circuit breaker housing welding forming tool also includes a sleeve positioning part for positioning the main shaft sleeve, and the sleeve positioning part includes a sleeve positioning member 7, and the sleeve positioning member 7 is fixedly connected to the inner positioning support body 8 located at the front side. The sleeve positioning member 7 includes two support plates 20, a lap plate 19 connecting the tops of the two support plates 20, and an ear plate 17 vertically arranged in the middle of the lap plate 19. The two support plates 20 are clamped in the annular groove on the inner positioning support body 8 through the arc-shaped matching parts provided thereon, and are welded and fixed to the inner positioning support body 8. The ear plate 17 is provided with a sleeve positioning hole 31 whose axis extends in the front-back direction. When in use, a rod can be coaxially inserted into the sleeve positioning hole 31 and the main shaft sleeve to ensure the coaxiality of the main shaft sleeve and the sleeve positioning hole. In addition, a buffer plate positioning member 18 for positioning the buffer plate in the enclosure is vertically welded on the ear plate 17, and the buffer plate positioning member 18 is provided with a buffer plate positioning hole 32 for being coaxial with the center hole on the buffer plate.

[0055] The use process of circuit breaker housing welding forming tooling: Fig. 9 , Fig.10 and Fig.11As shown, when the circuit breaker housing is welded and assembled, the support channel steel 104 is first fixedly connected to the bottom plate 103, and then the bottom plate 103 and the support channel steel 104 are positioned respectively through the bottom plate positioning piece 9 and the support channel steel positioning hole 10 on the base 1; after the positioning is completed, the two connecting pieces 3 are pulled to the left and right respectively, and after the enclosure 101 is placed on the bottom plate 103, the two coaxial penetration sections 22 located on one side of the axial direction of the inner positioning support body are respectively inserted into the electrode mounting holes on the enclosure, and the inner positioning support body 8 is placed in the enclosure 101, so that one end of the inner positioning support body 8 is plugged into and matched with the protrusions 24 on the above-mentioned two coaxial penetration sections, and then the connecting piece located on the other side of the axial direction of the inner positioning support body is pushed so that the two coaxial penetration sections on this side are inserted into the electrode mounting holes on the enclosure. The protrusion 24 on the shaft insertion section is plugged and matched with the other end of the inner positioning support body, so that the stop fitting section 23 is stop-fitted with the side wall of the enclosure 101 and clamped, so as to ensure that each pair of electrode mounting holes are coaxial, thereby positioning and supporting the enclosure; then the top plate 102 is placed on the enclosure 101, and the pressing plate 6 is installed at the same time, so that the through holes on the pressing plate 6 correspond to the studs 106 on the top plate, and the pressing plate 6 is connected to the column 4 to determine the position of the top plate 102; after the positions of the bottom plate 103, the enclosure 101 and the top plate 102 are determined, a positioning rod is used to simultaneously pass through the large shaft sleeve 109 and the sleeve positioning hole 31 to determine the position of the large shaft sleeve, and at the same time, the center hole on the buffer plate 110 is coaxial with the buffer plate positioning hole 32 to determine the position of the buffer plate 110. After the positions of each component are determined, each component is welded accordingly to finally form a product. It should be noted that other structures on the circuit breaker enclosure are positioned by additional tooling, and the circuit breaker housing welding forming tooling of the present invention mainly positions the bottom plate, enclosure, top plate, buffer plate and large shaft sleeve of the circuit breaker housing.

[0056] During the welding process, the pressure plate can be used to detect the overall height of the circuit breaker housing and the welding position of the studs on the top plate. The height of the bottom plate welding can be detected by the height of the lower plate section of the bottom plate positioning piece. The coaxiality of each pair of electrode mounting holes on the enclosure can be ensured by the external positioning support and the internal positioning support. The position of the buffer plate inside the enclosure can be located by the buffer plate positioning plate. The position of the large shaft sleeve can be located by the sleeve positioning piece. At the same time, the coaxiality of the large shaft mounting hole on the enclosure for the large shaft to pass through and the large shaft sleeve can be checked. The circuit breaker housing welding and forming tool adopts the method of welding after positioning and splicing. While welding, the welding position and shape of each component are corrected, which not only improves the welding efficiency, but also avoids the workers turning over the workpiece during welding, which may affect the welded part, reduces the welding size deviation, and improves the product forming quality.

[0057] In the above embodiment, two pairs of external positioning supports are provided. In other embodiments, three pairs of external positioning supports may be provided. The three pairs of external positioning supports are respectively used to position the three pairs of electrode mounting holes on the enclosure, which can more accurately ensure that each pair of the three pairs of electrode mounting holes on the enclosure are coaxial.

[0058] In the above embodiment, the external positioning support body is slidably assembled on the support seat. In other embodiments, the external positioning support body can also be fixedly connected to the support seat and the position cannot be adjusted. In this case, it is suitable for positioning welding of circuit breaker housings of specific sizes.

[0059] In the above embodiment, the external positioning support body is movably assembled on the support seat through a guide sleeve. In other embodiments, a positioning shaft through-hole can also be set on the support body of the support seat so that the external positioning support body can slide back and forth along the through-hole of the external positioning support body. In order to facilitate the support of the external positioning support body, the thickness of the support body can be made larger.

[0060] In the above embodiment, the coaxial penetration section is a tapered section with a gradually decreasing outer diameter. In other embodiments, the coaxial penetration section may also be a section of equal diameter that matches the inner diameter of the electrode mounting hole.

[0061] In the above embodiment, two pairs of external positioning supports located on the same axial side of the inner positioning support are connected by a connecting piece to achieve synchronous movement. In other embodiments, a connecting piece may not be provided, and the outer positioning support bodies may be manually pushed at the same time to achieve the clamping of the stepped limit boss.

[0062] In the above embodiment, the bottom plate positioning member is formed by welding two vertical plates. In other embodiments, the bottom plate positioning member can also be formed by an L-shaped plate. In this case, a limiting step can be processed on the L-shaped plate to achieve the same support and limitation of the bottom plate.

[0063] In the above embodiment, the sleeve positioning member is connected to the inner positioning support body to position the shaft sleeve. In other embodiments, the sleeve positioning member can also be provided separately, that is, after the top plate, the enclosure plate and the bottom plate of the circuit breaker housing are positioned, a separate sleeve positioning tool is used to extend from the top of the housing into the housing to position the sleeve.

Claims

1. Circuit breaker housing welding forming tooling, characterized in that: It includes a housing positioning part and a sleeve positioning part, and the housing positioning part includes: A base, on which a support channel steel positioning structure for positioning the support channel steel on the circuit breaker housing is provided; A bottom plate positioning member is arranged on the base and is used to support and position the bottom plate; External positioning supports are arranged in pairs on the base, the two pairs of external positioning supports are coaxial and arranged opposite to each other in the length direction of the base, and the external positioning supports have positioning matching parts for positioning the electrode mounting holes, and are used for externally supporting the positioning enclosure; An inner positioning support body, connected between two opposite outer positioning supports and coaxial with the outer positioning supports, for supporting and positioning the enclosure plate internally; The top plate positioning member comprises a column erected on the base and a pressing plate connected to the column, wherein the pressing plate is provided with a stud positioning hole for the stud on the top plate to pass through; The shaft sleeve positioning part comprises a shaft sleeve positioning piece, on which a shaft sleeve positioning hole is provided, and the shaft sleeve positioning piece is fixedly connected to the inner positioning support body; A support seat is provided on the base, and an external positioning support body is slidably assembled on the support seat along the length direction of the base; the positioning matching portion is formed by a stepped limiting boss connected to the end of the positioning shaft and coaxial with the positioning shaft, and the stepped limiting boss includes a coaxial penetration section with a smaller outer diameter for coaxially penetrating into the corresponding electrode mounting hole and a stop matching section with a larger outer diameter for cooperating with the enclosure stop, and the internal positioning support body is plugged into and matched with the coaxial penetration section.

2. The circuit breaker housing welding forming tool according to claim 1, characterized in that: The outer positioning support body is plug-fitted with the inner positioning support body.

3. The circuit breaker housing welding forming tool according to claim 2, characterized in that: The outer positioning support body and the inner positioning support body are plugged and matched through a plug hole provided on one of them and a protrusion provided on the other.

4. The circuit breaker housing welding forming tool according to any one of claims 1 to 3, characterized in that: The support seat is provided with a guide sleeve whose axis extends along the length direction of the base. The external positioning support body includes a positioning shaft that coaxially penetrates the guide sleeve and slides with the guide sleeve in the length direction of the base. The positioning matching part is arranged at the end of the positioning shaft.

5. The circuit breaker housing welding forming tool according to claim 1, characterized in that: The coaxial penetration section is a tapered section whose outer diameter gradually decreases along the length direction of the base, and the maximum outer diameter of the tapered section is adapted to the outer diameter of the electrode mounting hole.

6. The circuit breaker housing welding forming tool according to any one of claims 1 to 3, characterized in that: There are two pairs of external positioning supports, which are arranged at intervals in the width direction of the base, and are respectively used to position the two pairs of electrode mounting holes on the enclosure. Among the two pairs of external positioning supports, the two external positioning supports on the same axial side of the internal positioning support are connected by a connecting piece to achieve synchronous movement.

7. The circuit breaker housing welding forming tool according to any one of claims 1 to 3, characterized in that: The bottom plate positioning member includes two vertically connected vertical plates erected on a base, the vertical plates include a low plate section with a lower height and a high plate section with a higher height that are connected to each other, a limiting step is formed between the low plate section and the high plate section, the low plate sections of the two vertical plates are vertically connected, the step facade of the limiting step forms a positioning surface for positioning the bottom plate, and the step tread of the limiting step forms a supporting surface for supporting the bottom plate.

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