Circuit breaker assembly tool

Abstract

The utility model provides a circuit breaker assembly tool, and belongs to the technical field of special equipment or methods specially suitable for manufacturing electric switches. The circuit breaker assembly tool comprises a base, a supporting plate is installed on the base, the supporting plate is used for supporting one flange and provided with a first positioning structure used for enabling the flange and the supporting plate to be coaxial, a guide rod is fixed to the base, a movable part is installed on the guide rod, and a positioning plate is installed on the movable part. The positioning plate is provided with a second positioning structure used for positioning the other flange so that the flange and the positioning plate can be coaxial, and the horizontal position, relative to the base, of the supporting plate can be adjusted or / and the horizontal position, relative to the movable part, of the positioning plate can be adjusted. And a third positioning structure for enabling the supporting plate and the positioning plate to be coaxial is arranged on the supporting plate or the base and the positioning plate or the movable part. By means of the assembling tool, the positions of the fixed part flange and the movable part flange can be indirectly positioned, the concentricity of the fixed part flange and the movable part flange is guaranteed, operation is simpler, and adjusting precision and assembling efficiency are higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit breaker assembly tool belongs to the special equipment or method technical field specially applicable to manufacturing electric switch. BACKGROUND

[0002] The GIS device is composed of circuit breakers, disconnectors, grounding switches, current transformers and bus components, wherein the circuit breaker plays a key role in cutting off the load current in the high-voltage line and is one of the most important components. The circuit breaker realizes the closing and opening functions through the contact and disconnection of the movable and static contacts in the arc extinguishing chamber.

[0003] As shown in Figure 1 and Figure 2 , it is a structure diagram of a circuit breaker arc extinguishing chamber in the prior art, which is mainly composed of a movable part and a fixed part. The movable part is a moving assembly in the arc extinguishing chamber, which is driven by an external operating mechanism and contains a movable contact 77 and a movable arc contact 78. The fixed part is fixedly installed in the arc extinguishing chamber and contains a static contact 75 and a static arc contact 76. The distance between the movable contact 77 and the static contact 75 is the circuit breaker breaking point. The movable part moves towards the fixed part until the movable contact 77 and the static contact 75 are in contact, that is, the circuit breaker is closed (as shown in Figure 2 ). Conversely, the movable part moves away from the fixed part, and the movable contact 77 and the static contact 75 are separated and reach a certain distance, that is, the circuit breaker is opened (as shown in Figure 1 ).

[0004] In addition, the movable part includes a movable part flange 69, the fixed part includes a fixed part flange 72, and the movable part flange 69 and the fixed part flange 72 are connected by an insulating cylinder 74. Specifically, the insulating cylinder 74 is fixed between the movable part flange 69 and the fixed part flange 72 by a first connecting bolt 71, and the insulating cylinder 74 is fixed between the movable part flange 69 and the fixed part flange 72 by a second connecting bolt 73. The insulating cylinder 74 connects the movable part and the fixed part on one hand, and electrically isolates the movable part and the fixed part on the other hand, while playing the roles of supporting and insulating.

[0005] In the production and assembly process of the circuit breaker, the concentricity of the movable part and the fixed part must be ensured to prevent eccentricity of the movable and static contacts from causing abnormal collision during closing and damage to internal components of the assembly. When it is found that the concentricity of the movable and static contacts is poor, the first connecting bolt 71 between the insulating cylinder 74 and the movable part flange 69 and / or the second connecting bolt 73 between the insulating cylinder 74 and the fixed part flange 72 can be loosened, and the position of the fixed part flange 72 and / or the movable part flange 69 can be adjusted by utilizing the gap between the bolt hole on the flange and the bolt shank to ensure the concentricity of the fixed part flange 72 and the movable part flange 69.

[0006] Since the insulating cylinder 74 is a complete cylindrical cylinder, the material consumption is relatively high, and in order to reduce the raw material cost of the circuit breaker, as shown inFigure 3 As shown, there is also a scheme in the prior art that uses multiple insulation rods 70 to replace the insulation cylinder 74, each insulation rod 70 is independent of each other, and the two ends of each insulation rod 70 are connected to the movable flange and the fixed flange through the first connecting bolt and the second connecting bolt respectively. At this time, when the concentricity between the movable part and the fixed part needs to be adjusted, the first connecting bolt and / or the second connecting bolt also need to be loosened, and the position of the two flanges is adjusted by the gap between the bolt hole on the flange and the bolt rod.

[0007] The above insulation cylinder and insulation rod can be collectively referred to as an insulation piece. Regardless of which form of insulation piece, when adjusting the concentricity between the movable part and the fixed part, at least one end of the connecting bolt needs to be completely loosened, and then the position of the flange is repeatedly adjusted. The operation is relatively cumbersome, and after adjustment, whether it is coaxial can only be observed by eye, the adjustment accuracy is not high, and the assembly efficiency is relatively low. In addition, since the insulation cylinder is a one-piece cylinder, the position of the insulation cylinder can be changed as a whole, but when the insulation piece in the form of an insulation rod is used, after the connecting bolts at both ends are completely loosened, each insulation rod can move independently, and the posture of each insulation rod needs to be adjusted separately, which greatly reduces the assembly efficiency. Practical new type content

[0008] The utility model discloses a circuit breaker assembly tool, to solve the prior art in the adjustment concentricity between movable part and fixed part, through the repeated adjustment position of flange by eye and lead to the problem of cumbersome operation, adjustment accuracy is not high and assembly efficiency is relatively low.

[0009] To achieve the above object, the circuit breaker assembly tool in the utility model adopts the following technical scheme:

[0010] A circuit breaker assembly tool, comprising a base, a support plate is installed on the base, the support plate is used to support one of the fixed flange and the movable flange, and the support plate is provided with a first positioning structure for positioning the flange to make the flange coaxial with the support plate, a vertical guide rod is fixed on the base, a movable piece is guided and installed on the guide rod, a positioning plate is installed on the movable piece, and the positioning plate is provided with a second positioning structure for positioning the other flange of the fixed flange and the movable flange to make the flange coaxial with the positioning plate, the horizontal position of the support plate relative to the base is adjustable or / and the horizontal position of the positioning plate relative to the movable piece is adjustable, and the third positioning structure for making the support plate and the positioning plate coaxial is arranged on the support plate or the base and the positioning plate or the movable piece.

[0011] The utility model belongs to the pioneering invention creation, the circuit breaker assembly tool provided includes the base, the base is installed with the support plate, the support plate can support one of flange of fixed part flange and movable part flange, and the support plate is equipped with the first positioning structure for the flange positioning to make the flange with the support plate coaxial, ensure the position precision between the support plate and one of flange, the base is fixed with the vertical extension guide rod, the guide is installed with the movable element, the movable element is installed with the positioning plate, and the positioning plate can move up and down with the movable element in this way, the positioning plate is equipped with the second positioning structure for positioning the other flange of fixed part flange and movable part flange to make the flange with the positioning plate coaxial, can guarantee the position precision between the positioning plate and the other flange, at the same time, the horizontal position of support plate relative to the base is adjustable or / and the horizontal position of positioning plate relative to movable element is adjustable, and the third positioning structure for making the support plate and positioning plate coaxial is equipped on the support plate or base and positioning plate or movable element, so that the position precision between the positioning plate and support plate can be ensured through the third positioning structure first, then the position of positioning plate and support plate is fixed, then one of flange is accurately positioned through the support plate, and the other flange is accurately positioned through the positioning plate, so that the two flanges are indirectly accurately positioned through the positioning plate and support plate, and the concentricity is guaranteed, and the insulating element such as insulating cylinder and insulating rod only needs to be fixed between the two flanges, and after assembly, the two flanges and insulating element constitute integral assembly, and then the integral assembly and other parts of circuit breaker are assembled.

[0012] In summary, the assembly tool of the utility model can indirectly position the positions of the fixed part flange and the movable part flange, ensure the concentricity of the two, cancel the visual repeated adjustment mode, and the operation is simpler, and the adjustment precision and assembly efficiency are higher.

[0013] Further, the base is fixed with a first fixed shaft, the support plate is rotatably installed on the first fixed shaft through a first bearing, and the rotation axis of the support plate extends vertically.

[0014] Further, the movable element is fixed with a second fixed shaft, the positioning plate is rotatably installed on the second fixed shaft through a second bearing, and the rotation axis of the positioning plate extends vertically.

[0015] Further, the first fixed shaft is fixed on the base through a first bolt, the first bolt has an assembly gap between the bolt through hole of the first fixed shaft and / or the base; the second fixed shaft is fixed on the movable element through a second bolt, and the second bolt has an assembly gap between the bolt through hole of the second fixed shaft and / or the movable element.

[0016] Further, the support plate is provided with a first exposure hole capable of exposing the upper end of the first fixing shaft, the positioning plate is provided with a second exposure hole capable of exposing the lower end of the second fixing shaft, and the third positioning structure comprises a positioning column arranged on one of the upper end of the first fixing shaft and the lower end of the second fixing shaft and a positioning groove arranged on the other one, and the positioning groove is matched with the positioning column.

[0017] Further, the support plate is provided with a first exposure hole capable of exposing the upper end of the first fixing shaft, the positioning plate is provided with a second exposure hole capable of exposing the lower end of the second fixing shaft, and the third positioning structure comprises a positioning column arranged on one of the upper end of the first fixing shaft and the lower end of the second fixing shaft and a positioning groove arranged on the other one, and the positioning groove is matched with the positioning column.

[0018] Further, the support plate is provided with a first exposure hole capable of exposing the upper end of the first fixing shaft, the positioning plate is provided with a second exposure hole capable of exposing the lower end of the second fixing shaft, and the third positioning structure comprises a positioning column arranged on one of the upper end of the first fixing shaft and the lower end of the second fixing shaft and a positioning groove arranged on the other one, and the positioning groove is matched with the positioning column.

[0019] Further, the support plate is provided with a first exposure hole capable of exposing the upper end of the first fixing shaft, the positioning plate is provided with a second exposure hole capable of exposing the lower end of the second fixing shaft, and the third positioning structure comprises a positioning column arranged on one of the upper end of the first fixing shaft and the lower end of the second fixing shaft and a positioning groove arranged on the other one, and the positioning groove is matched with the positioning column.

[0020] Further, the top end of the guide rod is fixed with a fixed support, a connecting block vertically extending along a rotating axis is rotatably arranged on the fixed support, a rotating wheel is fixed on the connecting block, a screw rod penetrating through the fixed support is threadedly connected to the connecting block, and the lower end of the screw rod is fixedly connected with the movable part.

[0021] Further, the outer diameters of the support plate and the positioning plate respectively meet the requirements of being smaller than the outer diameter of the flange to be positioned and capable of exposing the bolt mounting holes on the flange. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural view of a circuit breaker arc-extinguishing chamber in the prior art (splitting state);

[0023] Figure 2 It is a structural view of a circuit breaker arc-extinguishing chamber in the prior art (splitting state);

[0024] Figure 3 It is a structural comparison view of an insulating cylinder and an insulating rod in a circuit breaker arc-extinguishing chamber in the prior art;

[0025] Figure 4 It is a perspective view of an embodiment of a circuit breaker assembly tool of the utility model;

[0026] Figure 5 It is a front view of a use state of an embodiment of a circuit breaker assembly tool of the utility model;

[0027] Figure 6 It is Figure 5 It is an enlarged view of A in FIG. 6;

[0028] Figure 7 It isFigure 5 Enlarged view at B;

[0029] Figure 8 For Figure 5 Enlarged view at C;

[0030] Figure 9 For Figure 5 Enlarged view at D;

[0031] Figure 10 For Figure 5 Enlarged view at E;

[0032] Figure 11 It is side view of circuit breaker assembly tool embodiment of the utility model;

[0033] Figure 12 It is perspective view of first fixed shaft in circuit breaker assembly tool embodiment of the utility model;

[0034] Figure 13 It is sectional view of support plate in circuit breaker assembly tool embodiment of the utility model;

[0035] Figure 14 For Figure 13 Local enlarged view in it;

[0036] Figure 15 It is sectional view of positioning plate in circuit breaker assembly tool embodiment of the utility model;

[0037] Figure 16 It is perspective view of second fixed shaft in circuit breaker assembly tool embodiment of the utility model;

[0038] Figure 17 It is perspective view of connecting block in circuit breaker assembly tool embodiment of the utility model;

[0039] Figure 18 It is perspective view of bearing seat in circuit breaker assembly tool embodiment of the utility model;

[0040] Figure 19 It is centering adjustment schematic view of first fixed shaft and second fixed shaft in circuit breaker assembly tool embodiment of the utility model;

[0041] Figure 20 For Figure 19 Local enlarged view in it;

[0042] Figure 21 It is use process diagram of circuit breaker assembly tool embodiment of the utility model.

[0043] In the figure: 1, base; 2, first fixed shaft; 2-1, positioning column; 3, support plate; 3-1, support surface; 3-2, positioning convex; 3-3, chamfer; 4, first bearing cover; 5, guide rod support; 6, guide rod; 7, linear bearing; 8, fixed support; 9, movable support; 10, positioning plate; 10-1, cylindrical section; 10-2, conical section; 11, second fixed shaft; 11-1, positioning groove; 12, connecting block; 13, bearing seat; 14, rotating wheel; 15, handle; 16, screw rod; 17, first thrust bearing; 18, second thrust bearing; 19, second bearing cover; 20, first bolt; 21, second bolt; 22, third thrust bearing; 69, movable flange; 70, insulating rod; 71, first connecting bolt; 72, fixed flange; 73, second connecting bolt; 74, insulating cylinder; 75, static contact; 76, static arc contact; 77, dynamic contact; 78, dynamic arc contact. DETAILED DESCRIPTION

[0044] In view of the technical problems in the prior art, the basic idea of the utility model is to design an assembly tool, the support plate and the positioning plate in the assembly tool are first adjusted to be coaxial, then one of the fixed flange and the movable flange is positioned and fixed by the support plate, and the other one of the fixed flange and the movable flange is positioned by the positioning plate, so that indirect positioning between the fixed flange and the movable flange is realized, concentricity of the two is ensured, assembly is facilitated, and assembly efficiency is improved.

[0045] The features and performances of the utility model are further described in detail in combination with embodiments.

[0046] Embodiment 1 of the circuit breaker assembly tool in the utility model:

[0047] As shown in Figure 4 , Figure 5 , Figure 11 , the circuit breaker assembly tool comprises a base 1, the base 1 is formed by profiled material butt welding, and the base 1 is provided with a support plate 3, the support plate 3 in the embodiment is used for supporting the movable flange 69 of the circuit breaker, and the support plate 3 is provided with a first positioning structure for positioning the movable flange 69 so that the movable flange 69 is coaxial with the support plate 3.

[0048] Specifically, the first fixed shaft 2 is fixed on the base 1, and the first fixed shaft 2 is provided with a positioning column 2-1, the positioning column 2-1 is provided with a positioning convex 3-2, and the positioning convex 3-2 is used for positioning the movable flange 69. Figure 6 and Figure 12As shown, the first fixed shaft 2 is fixed on the base 1 by the first bolt 20, and the support plate 3 is rotatably mounted on the first fixed shaft 2 by two first thrust bearings 17, and the rotation axis of the support plate 3 extends vertically. The first fixed shaft 2 comprises a round shaft and a flange, and the flange is provided with a counterbore for the first bolt 20 to pass through and threadedly connect with the base 1, and the first bolt 20 has an assembly gap between the flange bolt hole and the flange; the end face of the flange and the outer surface of the round shaft are respectively matched with the end face and the inner circle of the first thrust bearing 17; the end of the round shaft is chamfered to facilitate bearing installation; and the end face of the round shaft is processed with a positioning column 2-1, which comprises a cylindrical part and a circular truncated cone part, and the cylindrical part is connected with the end face of the round shaft; in addition, the end face of the round shaft is also processed with a threaded hole for connecting the first bearing cover 4, and the first bearing cover 4 is fixed on the end face of the round shaft by a screw.

[0049] As shown in Figure 5 , Figure 6 , Figure 13 and Figure 14 , the central part of the support plate 3 is provided with two stepped holes for mounting two first thrust bearings 17; the support plate 3 has a support surface 3-1 for supporting the movable part flange 69, and the outer diameter of the support plate 3 is smaller than the outer diameter of the movable part flange 69, so that the bolt mounting hole for mounting the first connecting bolt 71 on the movable part flange 69 can be exposed. As shown in Figure 10 , the above-mentioned first positioning structure is a positioning protrusion 3-2 protruding on the support surface 3-1 and used for extending into the flange center hole of the movable part flange 69 and matching with the hole diameter of the flange center hole, and the positioning protrusion 3-2 is in a cylindrical shape and has a small assembly gap with the flange center hole of the movable part flange 69 to ensure coaxiality. At the same time, in order to facilitate the assembly between the support plate 3 and the movable part flange 69, a chamfer 3-3 is arranged at the end of the positioning protrusion 3-2.

[0050] The support plate 3 is provided with a first exposure hole capable of exposing the upper end of the first fixed shaft 2, and the first exposure hole is a central through hole of the support plate 3, the round shaft of the first fixed shaft 2 passes through the central through hole of the support plate 3, the cylindrical part of the positioning column 2-1 is positioned and matched with the inner hole of the first bearing cover 4, and the circular truncated cone part of the positioning column 2-1 passes through the first bearing cover 4 and is in a bare state.

[0051] At this point, the first fixed shaft 2 is mounted on the base 1 by the first bolt 20, the support plate 3 is mounted on the first fixed shaft 2 by the first thrust bearing 17, and the first bearing cover 4 is fixed on the first fixed shaft 2 by a screw, so that the support plate 3 can freely rotate around its own axis.

[0052] As shown in Figure 4 , Figure 5 , Figure 11As shown, the base 1 is fixed with two vertically extending guide rods 6, the top end of the guide rod 6 is fixed with a fixed support 8, specifically, the upper end face of the base 1 is fixed with two guide rod supports 5 through bolts, the lower end of the guide rod 6 is inserted into the guide rod support 5, the guide rod support 5 is provided with a split slot, the guide rod 6 is inserted into the guide rod support 5 and the bolt is installed on the guide rod support 5, so that the structure on both sides of the split slot is clamped around the outer surface of the guide rod 6, so as to lock the lower end of the guide rod 6. The upper end structure is also fixed with two guide rod supports 5 on the lower end face of the fixed support 8 through bolts, the upper end of the guide rod 6 is inserted into the guide rod support 5, the guide rod support 5 is provided with a split slot, the guide rod 6 is inserted into the guide rod support 5 and the bolt is installed on the guide rod support 5, so that the structure on both sides of the split slot is clamped around the outer surface of the guide rod 6, so as to lock the upper end of the guide rod 6.

[0053] The guide rod 6 is guidedly installed with a movable part, that is, a movable support 9, the fixed support 8 and the movable support 9 in this embodiment are both welded from profiled materials. The movable support 9 is fixed with two linear bearings 7 through bolts, the guide rod 6 passes through the corresponding linear bearing 7, the linear bearing 7 is guidedly matched with the guide rod 6, and the movable support 9 moves up and down along the guide rod 6 through the linear bearing 7.

[0054] The movable support 9 is installed with a positioning plate 10, the positioning plate 10 is provided with a second positioning structure for positioning the fixed part flange 72 so that the fixed part flange 72 is coaxial with the positioning plate 10. Specifically, combined with Figure 5 and Figure 7 As shown, the movable support 9 is fixed with a second fixed shaft 11, the positioning plate 10 is rotatably installed on the second fixed shaft 11 through two second thrust bearings 18, and the rotation axis of the positioning plate 10 vertically extends.

[0055] Moreover, the second fixed shaft 11 is fixed on the movable support 9 through a second bolt 21, combined with Figure 16 As shown, the second fixed shaft 11 also includes a circular shaft and a flange, the flange is provided with a counterbore for the second bolt 21 to pass through and threadedly connect with the movable support 9, and the second bolt 21 has an assembly gap between the flange and the bolt hole; the end face of the flange and the outer surface of the circular shaft are respectively matched with the end face and the inner circle of the second thrust bearing 18; the end of the circular shaft is chamfered to facilitate bearing installation; the end face of the circular shaft is processed with a positioning groove 11-1, the positioning groove 11-1 is a taper hole structure, matched with the positioning column 2-1 on the first fixed shaft 2, used for positioning cooperation with the positioning column 2-1 during tool assembly, so as to ensure the coaxiality of the first fixed shaft 2 and the second fixed shaft 11, so the positioning plate 10 is provided with a second exposure hole capable of exposing the lower end of the second fixed shaft 11, which is the center through hole of the positioning plate 10. In addition, a threaded hole is also processed on the end face of the circular shaft, used for connecting the second bearing cover 19.

[0056] Combined with Figure 15 and Figure 9As shown in Figs. 1 and 2, the central part of the positioning plate 10 is provided with two stepped holes for mounting two second thrust bearings 18. The positioning plate 10 has an extending section for extending into the flange center hole of the fixed part flange 72, which constitutes the second positioning structure. Specifically, the extending section includes a cylindrical section 10-1 and a conical section 10-2 connected to the cylindrical section 10-1, and the conical section 10-2 is used to abut the opening of the flange center hole of the fixed part flange 72, thereby positioning the fixed part flange 72. Since the positioning plate 10 is mainly inserted into the flange center hole of the fixed part flange 72, the outer diameter of the positioning plate 10 is smaller than the outer diameter of the fixed part flange 72, so that the second connecting bolts 73 for mounting the second connecting bolts 73 on the fixed part flange 72 are not blocked by the positioning plate 10.

[0057] At this point, the second fixed shaft 11 is mounted to the movable support 9 by the second bolt 21, the positioning plate 10 is mounted on the second fixed shaft 11 by the second thrust bearing 18, and the second bearing cover 19 is fixed on the second fixed shaft 11 by the screw. The positioning plate 10 can rotate freely around its own axis.

[0058] In combination with Figure 5 , Figure 8 , Figure 11 , Figure 17 and Figure 18 As shown in Figs. 1 and 2, the fixed support 8 is rotatably mounted with a connecting block 12 with a vertical rotating axis, specifically, the top surface of the fixed support 8 is bolted with a bearing seat 13, the central part of the bearing seat 13 is provided with two stepped holes for mounting two third thrust bearings 22. The end surface and the cylindrical surface of the connecting block 12 are respectively matched with the end surface and the inner circle of the third thrust bearing 2, and the end of the connecting block 12 is chamfered to facilitate the installation of the bearing. The connecting block 12 is fixed with a rotating wheel 14 by a screw, and the connecting block 12 is threadedly connected with a lead screw 16 which penetrates the fixed support 8 from top to bottom, and the lower end of the lead screw 16 is bolted to the top surface of the movable support 9. The rotating wheel 14 is connected with a plurality of handles 15 to facilitate the rotation of the rotating wheel 14, and then under the action of the lead screw nut mechanism, the movable support 9 is driven to move up and down.

[0059] As shown in Figs. 1 and 2, the fixed support 8 is rotatably mounted with a connecting block 12 with a vertical rotating axis, specifically, the top surface of the fixed support 8 is bolted with a bearing seat 13, the central part of the bearing seat 13 is provided with two stepped holes for mounting two third thrust bearings 22. The end surface and the cylindrical surface of the connecting block 12 are respectively matched with the end surface and the inner circle of the third thrust bearing 2, and the end of the connecting block 12 is chamfered to facilitate the installation of the bearing. The connecting block 12 is fixed with a rotating wheel 14 by a screw, and the connecting block 12 is threadedly connected with a lead screw 16 which penetrates the fixed support 8 from top to bottom, and the lower end of the lead screw 16 is bolted to the top surface of the movable support 9. The rotating wheel 14 is connected with a plurality of handles 15 to facilitate the rotation of the rotating wheel 14, and then under the action of the lead screw nut mechanism, the movable support 9 is driven to move up and down. Figure 19 Figure 20 ​As shown, during the assembly of the circuit breaker assembly fixture, the second fixed shaft 11 is first installed onto the movable support 9 using the second bolt 21. The second bolt 21 is not fully tightened. Then, the movable support 9 is moved to its lowest position, allowing the positioning groove 11-1 on the second fixed shaft 11 to engage with the positioning post 2-1 on the first fixed shaft 2, ensuring the coaxiality of the second fixed shaft 11 and the first fixed shaft 2. Then, the second bolt 21 is tightened, and other components are assembled. Alternatively, the first bolt 20 can be left loose, and tightened after the positioning groove 11-1 and the positioning post 2-1 have engaged. Because there is an assembly gap between the second bolt 21 and the bolt hole of the second fixed shaft 11, the horizontal position of the second fixed shaft 11 relative to the movable support 9 is adjustable, which in turn allows the horizontal position of the positioning plate 10 relative to the movable support 9 to be adjustable. Simultaneously, because there is also an assembly gap between the first bolt 20 and the bolt hole of the first fixed shaft 2, the horizontal position of the first fixed shaft 2 relative to the base 1 is adjustable, which in turn allows the horizontal position of the support plate 3 relative to the base 1 to be adjustable. Since the first fixed shaft 2 determines the position of the support plate 3 and the second fixed shaft 11 can determine the position of the positioning plate 10, the positioning post 2-1 on the first fixed shaft 2 and the positioning groove 11-1 on the second fixed shaft 11 constitute a third positioning structure for making the support plate 3 and the positioning plate 10 coaxial.

[0060] like Figure 21 As shown, the circuit breaker assembly fixture is used as follows: Figure 21 As shown in (a), first turn handle 15 to move movable support 9 to its highest position; as Figure 21 As shown in (b), a movable flange 69 is placed on the support plate 3; as Figure 21 As shown in (c), the insulating rods 70 and the first connecting bolts 71 between the insulating rods 70 and the movable flange 69 are installed sequentially. The first connecting bolts 71 are not fully tightened here. Since the support plate 3 is rotatable, personnel can easily complete the installation of each insulating rod 70 by standing in one place and rotating the support plate 3. Figure 21 As shown in (d), a fixing flange 72 is placed at the upper end of the insulating rod 70; as Figure 21 As shown in (e), rotating handle 15 moves the movable support 9 downwards until the extension section of positioning plate 10 enters the flange center hole of fixed flange 72 and is fully engaged. At this point, fixed flange 72 and positioning plate 10 are coaxial, and indirectly, fixed flange 72 and movable flange 69 are coaxial; Figure 21 As shown in (f), the second connecting bolt 73 is installed on the insulating rod 70 and the fixed flange 72. The position of the insulating rod 70 is finely adjusted, and the first connecting bolt 71 and the second connecting bolt 73 at both ends are tightened. The assembly of the insulating rod 70, the movable flange 69, and the fixed flange 72 is completed. Figure 21As shown in (g) of FIG. 11, the handle 15 is rotated to move the movable support 9 upward, and the assembly of the insulating rod 70 and the movable flange 69 and the fixed flange 72 is removed, as shown in (h) of FIG. 11. ​ As shown in (h) of FIG. 11, the operation is completed.

[0061] In other embodiments of the circuit breaker assembly tool: the fixed flange and the movable flange can be swapped, that is, the support plate supports the fixed flange, and the positioning plate positions the movable flange.

[0062] In other embodiments of the circuit breaker assembly tool: the outer diameters of the support plate and the positioning plate can be larger than the positioned flange, and at this time, arc-shaped long holes are needed to be formed on the support plate and the positioning plate as operation holes for mounting bolts.

[0063] In other embodiments of the circuit breaker assembly tool: the fixed support, the connecting block, the rotating wheel, the screw rod and other components can no longer be provided, and at this time, the movable support is moved by being lifted or pressed by hands.

[0064] In other embodiments of the circuit breaker assembly tool: the extending section of the positioning plate can only include a conical section, and of course, it can only include a cylindrical section, and at this time, the cylindrical section has a very small fitting gap with the center hole of the flange to ensure the positioning effect.

[0065] In other embodiments of the circuit breaker assembly tool: the second positioning structure on the positioning plate can not position the center hole of the flange, but can position the screw hole on the flange, and of course, it can also position the bolt mounting hole on the flange, and at this time, the second positioning structure is a second positioning column arranged at intervals and extending into the corresponding screw hole or bolt mounting hole.

[0066] In other embodiments of the circuit breaker assembly tool: the first positioning structure on the support plate can not position the center hole of the flange, but can position the screw hole on the flange, and of course, it can also position the bolt mounting hole on the flange, and at this time, the second positioning structure is a first positioning column arranged at intervals and extending into the corresponding screw hole or bolt mounting hole.

[0067] In other embodiments of the circuit breaker assembly tool: a positioning groove can be provided on the first fixed shaft, and a positioning column adapted to the positioning groove is provided on the corresponding second fixed shaft.

[0068] In other embodiments of the circuit breaker assembly tool: an assembly gap can be provided only between the first bolt and the bolt through hole of the first fixed shaft, and of course, the assembly gap can also be provided between the first bolt and the bolt through hole on the base, or between the first bolt and the bolt through holes on the first fixed shaft and the base.

[0069] In other embodiments of the circuit breaker assembly fixture: the assembly gap can be provided only between the second bolt and the bolt hole of the second fixed shaft, of course the assembly gap can also be provided between the second bolt and the bolt hole of the movable support, or provided between the second bolt and the bolt holes of the second fixed shaft and the movable support.

[0070] In other embodiments of the circuit breaker assembly fixture: the positioning plate can not be mounted on the second fixed shaft through the second bearing, for example the positioning plate is directly fixed on the movable support through bolts, at this time the positioning plate is not rotatable.

[0071] In other embodiments of the circuit breaker assembly fixture: the support plate can not be mounted on the first fixed shaft through the first bearing, for example the support plate is directly fixed on the base through bolts, at this time the support plate is not rotatable.

[0072] In other embodiments of the circuit breaker assembly fixture: when the support plate is directly fixed on the base and the positioning plate is directly fixed on the movable support, the third positioning structure can be provided on the support plate and the positioning plate. Of course if only the support plate is directly fixed on the base, the third positioning structure can be provided on the support plate and the second fixed shaft, or when only the positioning plate is directly fixed on the movable support, the third positioning structure can be provided on the first fixed shaft and the positioning plate.

[0073] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, the patent protection scope of the utility model is accurate with the claim, equivalent structural changes made with the contents of the specification and drawings of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit breaker assembly tool characterized by, The base is provided with a support plate for supporting one of the flanges of the fixed part flange and the movable part flange, and the support plate is provided with a first positioning structure for positioning the flange to make the flange coaxial with the support plate; the base is fixed with a vertical guide rod, the guide rod is provided with a movable part movably installed thereon, the movable part is provided with a positioning plate, the positioning plate is provided with a second positioning structure for positioning the other flange of the fixed part flange and the movable part flange to make the flange coaxial with the positioning plate; the horizontal position of the support plate relative to the base is adjustable or / and the horizontal position of the positioning plate relative to the movable part is adjustable, and the support plate or the base and the positioning plate or the movable part are provided with a third positioning structure for making the support plate and the positioning plate coaxial.

2. The circuit breaker assembly tool of claim 1, wherein, The base is fixed with a first fixed shaft, and the support plate is rotatably installed on the first fixed shaft through a first bearing, and the rotation axis of the support plate extends vertically.

3. The circuit breaker assembly tool of claim 2, wherein, The movable part is fixed with a second fixed shaft, and the positioning plate is rotatably installed on the second fixed shaft through a second bearing, and the rotation axis of the positioning plate extends vertically.

4. The circuit breaker assembly tool of claim 3, wherein, The first fixed shaft is fixed on the base through a first bolt, and the first bolt has an assembly gap between the first fixed shaft and / or the bolt hole on the base; the second fixed shaft is fixed on the movable part through a second bolt, and the second bolt has an assembly gap between the second fixed shaft and / or the bolt hole on the movable part.

5. The circuit breaker assembly tool of claim 3 or 4, wherein, The support plate is provided with a first exposure hole capable of exposing the upper end of the first fixed shaft, and the positioning plate is provided with a second exposure hole capable of exposing the lower end of the second fixed shaft, and the third positioning structure comprises a positioning column arranged on one of the upper end of the first fixed shaft and the lower end of the second fixed shaft and a positioning groove arranged on the other, and the positioning groove is matched with the positioning column.

6. The circuit breaker assembly tool of any one of claims 1 to 4, wherein, The support plate has a support surface for supporting one of the flanges of the fixed part flange and the movable part flange, and the first positioning structure is a positioning protrusion protruding from the support surface and used for extending into the center hole of the flange and matched with the hole diameter of the center hole of the flange.

7. The circuit breaker assembly tool of any one of claims 1-4, wherein the tool comprises a first tool portion and a second tool portion, the first tool portion comprising the first jaw and the second tool portion comprising the second jaw. The positioning plate has an extending section for extending into the center hole of the other flange of the fixed part flange and the movable part flange, and the extending section constitutes the second positioning structure.

8. The circuit breaker assembly tool according to claim 7, wherein the extending section comprises a cylindrical section and a conical section connected with the cylindrical section, and the conical section is used for top pressing fit with the hole of the flange.

9. The circuit breaker assembly tool of claim 8, wherein, The top end of the guide rod is fixed with a fixed support, the fixed support is rotatably installed with a connecting block with a vertical rotation axis, the connecting block is fixed with a rotating wheel, and the connecting block is threadedly connected with a lead screw penetrating through the fixed support, and the lower end of the lead screw is fixedly connected with the movable part.

10. The circuit breaker assembly tool of any one of claims 1-4, wherein, The outer diameters of the support plate and the positioning plate respectively meet the requirements of being smaller than the outer diameter of the positioned flange and capable of exposing the bolt mounting hole on the flange.

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