Tool for assembling connecting arm and sliding block

Through the design of the tooling, the support cylinder and coupling arm are fixed to ensure the consistency of the gap between the sliding block and the slide, solving the problem of assembly difficulty in the prior art and improving assembly efficiency.

CN223140681UActive Publication Date: 2025-07-22CHINT ELECTRIC
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Patent Information

Application Number
CN202422022111.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-07-22
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

In the prior art, during the assembly process of the coupling arm and the sliding block, it is difficult to maintain the consistency between the sliding block and the slide block, resulting in high assembly difficulty and low efficiency.

Method used

Using a tooling including a base, a first fixing assembly, a locking assembly and a second fixing assembly, the support cylinder is fixed by a rotating member, and the locking assembly locks the rotating member and the base, and the second fixing assembly restricts the rotation of the coupling arm, ensuring that the support cylinder and the coupling arm are relatively fixed, and simplifying the adjustment process of the sliding block and the slide clearance.

Benefits of technology

Accurate alignment of the sliding block and the slide clearance is achieved, reducing assembly difficulty and improving assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tools, and particularly discloses a tool for assembling a connecting arm and a sliding block. The tool for assembling the connecting arm and the sliding block comprises a base, a first fixing assembly, a locking assembly and a second fixing assembly, the first fixing assembly comprises a rotating part and a bearing part, the rotating part is arranged on the base and can rotate with the axis of the rotating part as the axis, the rotating part is used for fixing a supporting cylinder, and the bearing part is fixedly arranged on the rotating part and can rotate with the axis of the bearing part as the axis. The rotating piece is arranged on the connecting arm, used for bearing the connecting arm and provided with a rotation stopping part; the locking assembly is arranged on the base, and a locking part of the locking assembly can move to the rotation path of the rotation stopping part so as to lock the rotating piece on the base and can move out of the rotation path of the rotation stopping part so as to unlock the rotating piece; the second fixing assembly is arranged on the base and used for limiting the connecting arm to rotate around the axis of the supporting cylinder. By means of the arrangement, the difficulty of keeping the gap between the sliding block and the sliding way consistent in the connecting process of the connecting arm and the sliding block is lowered, and the assembling efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a tooling for assembling a connecting arm and a sliding block. Background Art

[0002] The arc extinguishing chamber is the core component of a circuit breaker. Some products adopt a double-break structure, that is, two arc extinguishing chambers are connected in series. A connecting arm is equipped on each arc extinguishing chamber, and the two connecting arms are connected together through an insulating pull rod, so as to realize the synchronous opening and closing operations of the two arc extinguishing chambers.

[0003] Part of the connecting arm is in the support cylinder, and part extends out of the support cylinder through the chute of the support cylinder. The side wall of the chute forms a slideway. A sliding block is fixed on the connecting arm, and the sliding block cooperates with the slideway to slide. In each of the two chutes of the support cylinder, each chute has two side walls to form two slideways, for a total of four slideways. During the opening and closing process, the two connecting arms slide relative to the four slideways. To meet the sliding performance, the gap between the sliding block and the slideway needs to be kept consistent.

[0004] During assembly, the positions of the connecting arm and the support cylinder cannot be relatively fixed, so that during the connection process of the sliding block and the connecting arm, the relative position between the connecting arm and the support cylinder is likely to shake, making it extremely difficult to keep the gap between the sliding block and the slideway consistent. It is necessary to repeatedly adjust and measure, which increases the assembly difficulty and reduces the assembly efficiency.

[0005] Therefore, it is urgent to study a tooling for assembling a connecting arm and a sliding block to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a tooling for assembling a connecting arm and a sliding block, so as to solve the problems in the prior art that the assembly difficulty is large and the assembly efficiency is low due to the great difficulty in keeping the gap between the sliding block and the slideway consistent.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] A tooling for assembling a connecting arm and a sliding block, used for fixing the connecting arm and the support cylinder of the arc extinguishing chamber, includes:

[0009] A base;

[0010] A first fixing component, the first fixing component includes a rotating part and a supporting part. The rotating part is arranged on the base and is arranged to rotate about its own axis. The rotating part is used for fixing the support cylinder. The supporting part is fixedly arranged on the rotating part and is used for supporting the connecting arm. The rotating part has an anti-rotation part;

[0011] A locking component, which is arranged on the base, and its locking part can move to the rotation path of the anti-rotation part to lock the rotating part to the base, and can move outside the rotation path of the anti-rotation part to unlock the rotating part;

[0012] A second fixing component, which is arranged on the base and is arranged to restrict the rotation of the connecting arm around the axis of the support cylinder.

[0013] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the first fixing component further includes a main shaft and a main sleeve. The main sleeve is arranged on the base, the main shaft is arranged in the main sleeve and is arranged to be able to rotate relative to the main sleeve with its own axis as the axis, and the rotating part is fixedly arranged on the main shaft.

[0014] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the rotating part is in a disc shape, and the rotating part is provided with a positioning protrusion and a locking screw hole. The positioning protrusion is used for the positioning hole of the support cylinder to be inserted, and the positioning screw can pass through the support hole of the support cylinder and be in threaded cooperation with the locking screw hole.

[0015] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the connecting arm has a slot, and the extending direction of the slot is perpendicular to the axis of the support cylinder; the second fixing component includes a mounting part and an anti-rotation part arranged on the mounting part. The anti-rotation part can approach the axis of the rotating part to be inserted into the slot to restrict the rotation of the connecting arm around the axis of the support cylinder, or move away from the axis of the rotating part to be withdrawn from the slot.

[0016] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the mounting part and the anti-rotation part are fixedly connected. Among the base and the mounting part, one is provided with a sliding groove, and the other is provided with a sliding part. The extending direction of the sliding groove is horizontal and coplanar with the axis of the rotating part. The sliding part is arranged in the sliding groove and can slide in the sliding groove so that the anti-rotation part can approach or move away from the axis of the rotating part.

[0017] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the end of the anti-rotation part close to the rotating part is in a frustum structure.

[0018] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the mounting part is fixedly arranged on the base, the anti-rotation part can be movably constrained by the mounting part, and can approach or move away from the axis of the rotating part.

[0019] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the locking assembly includes a locking sleeve provided on the base and a locking pin provided in the locking sleeve and having the locking portion. The rotating member is provided with a locking hole to form the anti-rotation portion, and the locking pin can move relative to the locking sleeve in the height direction to be inserted into the locking hole or withdrawn from the locking hole.

[0020] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, there are two locking holes, and the two locking holes are symmetrically arranged about the axis of the rotating member.

[0021] As an alternative technical solution for the tooling for assembling the connecting arm and the sliding block, the locking assembly further includes a locking elastic member, and the locking elastic member can apply an elastic force to the locking pin to insert it into the locking hole.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The present utility model provides a tooling for assembling a connecting arm and a sliding block. The tooling for assembling the connecting arm and the sliding block includes a first fixing assembly, a locking assembly, and a second fixing assembly. Among them, the rotating member in the first fixing assembly is used to fixedly support the support cylinder, and the locking assembly can lock the rotating member and the base, so that the support cylinder is fixed relative to the base; the supporting member in the first fixing assembly is used to support the connecting arm, and the second fixing assembly can limit the rotation of the connecting arm relative to the base, so that the relative fixation between the support cylinder and the connecting arm is achieved. In this state, the sliding block can be installed on the connecting arm, which is beneficial to ensuring the distance between the sliding block and the slideway on the support cylinder after the sliding block is connected to the connecting arm, thus eliminating the need for repeated adjustment, reducing the difficulty of maintaining the consistency of the gap between the sliding block and the slideway during the connection process of the connecting arm and the sliding block, and improving the assembly efficiency. Description of the Drawings

[0024] Figure 1 It is a schematic structural view of the tooling for assembling the connecting arm and the sliding block in the embodiment of the present utility model;

[0025] Figure 2 It is a cross-sectional view of the tooling for assembling the connecting arm and the sliding block in the embodiment of the present utility model;

[0026] Figure 3 It is a schematic structural view of the tooling for assembling the connecting arm and the sliding block in the embodiment of the present utility model, and the mounting member slides on the base;

[0027] Figure 4 It is a partial structural view of the support cylinder and the connecting arm.

[0028] In the figure:

[0029] 1000, support cylinder; 2000, connecting arm; 3000, sliding block; 4000, gasket;

[0030] 100. Base; 110. Sliding groove;

[0031] 200. First fixing component; 210. Rotating part; 211. Positioning protrusion; 212. Positioning screw; 220. Supporting part; 221. Supporting screw; 222. Supporting pin; 223. Supporting member; 230. Main shaft; 231. Bearing; 232. Anti-rotation screw; 240. Main sleeve; 241. Main screw;

[0032] 300. Locking component; 310. Locking sleeve; 320. Locking pin; 330. Locking elastic member; 340. Locking handle; 350. Locking screw;

[0033] 400. Second fixing component; 410. Mounting part; 411. Mounting screw; 412. Mounting pin; 413. Sliding cylinder; 420. Anti-rotation part; 430. Anti-rotation elastic member; 440. Fixing handle; 450. Anti-rotation bolt. Detailed implementation mode

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] As Figures 1 to 3 shown, this embodiment provides a tooling for assembling a coupling arm and a sliding block (hereinafter referred to as tooling) for fixing the coupling arm 2000 and the support cylinder 1000 of the arc extinguishing chamber. The connection relationship between the coupling arm 2000 and the support cylinder 1000 is as Figure 4 shown. The coupling arm 2000 has a slot; a gas guide pipe (not shown) is concentrically arranged inside the support cylinder 1000. One end of the coupling arm 2000 located inside the support cylinder 1000 abuts against the gas guide pipe. When the tooling is not in use, the coupling arm 2000 can swing relative to the gas guide pipe and can move up and down. Both sides of the chute of the support cylinder 1000 form a flat slideway. The two slideways are in an outward expanding structure along the direction away from the axis of the support cylinder 1000. The sliding block 3000 has an installation surface and a sliding surface. The installation surface is connected to the fixed surface of the coupling arm 2000. The sliding surface is parallel to the slideway and a gap H is formed between them. When assembling, a gasket 4000 needs to be added between the installation surface and the fixed surface to adjust the gap H between the sliding surface and the slideway.

[0039] The tooling for assembling the coupling arm and the sliding block includes a base 100, a first fixing component 200, a locking component 300, and a second fixing component 400. Among them, the first fixing component 200 includes a rotating member 210 and a supporting member 220. The rotating member 210 is arranged on the base 100 and is arranged to be able to rotate around its own axis. The rotating member 210 is used to fix the support cylinder 1000. The supporting member 220 is fixedly arranged on the rotating member 210 and is used to support the coupling arm 2000. The rotating member 210 has an anti-rotation part; the locking component 300 is arranged on the base 100, and its locking part can move to the rotation path of the anti-rotation part to lock the rotating member 210 on the base 100, and can move outside the rotation path of the anti-rotation part to unlock the rotating member 210; the second fixing component 400 is arranged on the base 100 and is arranged to limit the rotation of the coupling arm 2000 around the axis of the support cylinder 1000.

[0040] The rotating member 210 fixes the supporting tube 1000, and the locking assembly 300 locks the rotating member 210 and the base 100, thereby fixing the supporting tube 1000 relative to the base 100. The supporting member 220 is used to support the connecting arm 2000. The second fixing assembly 400 can limit the rotation of the connecting arm 2000, thereby fixing the connecting arm 2000 relative to the base 100, and further fixing the supporting tube 1000 and the connecting arm 2000 relatively. In this state, the sliding block 3000 can be stably installed on the connecting arm 2000, which is conducive to ensuring that after the sliding block 3000 is connected to the connecting arm 2000, the gap H between the sliding surface and the slideway on the supporting tube 1000 is within the tolerance range, thereby eliminating the need for repeated adjustments, reducing the connection process between the connecting arm 2000 and the sliding block 3000, and the difficulty of keeping the gap H between each sliding block 3000 and each slideway consistent, thereby improving assembly efficiency.

[0041] In addition, the rotating member 210 rotates relative to the base 100, so that the connecting arms 2000 at different positions on the support tube 1000 can all face the anti-rotation member 420 and can be abutted by the anti-rotation member 420 to stop rotation without reinstallation, further improving the assembly efficiency.

[0042] Combination Figure 2 As shown, in order to facilitate the rotation of the rotating member 210, in some embodiments, the first fixing assembly 200 further includes a main shaft 230 and a main sleeve 240, the main sleeve 240 is screwed to the base 100 through a main screw 241, the main shaft 230 is arranged in the main sleeve 240, and is arranged to be able to rotate relative to the main sleeve 240 with its own axis as the axis, and the rotating member 210 is fixed to the main shaft 230. Among them, a bearing 231 is provided between the main shaft 230 and the main sleeve 240 to improve the smoothness of the rotation of the main shaft 230. Further, two bearings 231 are provided, and the two bearings 231 are arranged at intervals along the height direction. Among them, the height direction is the extension direction of the axis of the rotating member 210.

[0043] In order to achieve a stable connection between the rotating member 210 and the main shaft 230, the rotating member 210 is provided with a rotating hole, and the main shaft 230 is interference-fitted in the rotating hole. Further, the main shaft 230 is provided with a first half hole, and the rotating member 210 and the side wall of the rotating hole are provided with a second half hole. When the main shaft 230 is inserted into the rotating hole, the first half hole and the second half hole are combined to form a stop hole, and the stop screw 232 is threadedly fitted in the stop hole.

[0044] To achieve the connection efficiency and accuracy between the rotating member 210 and the support cylinder 1000, in some embodiments, the rotating member 210 is in a disc shape, and the rotating member 210 is provided with a positioning protrusion 211 and a locking screw hole. The positioning protrusion 211 is used for the positioning hole of the support cylinder 1000 to be inserted and matched, and the positioning screw 212 can pass through the support hole of the support cylinder 1000 and be in threaded cooperation with the locking screw hole. Among them, the cooperation between the positioning protrusion 211 and the positioning hole can ensure the precise relative position between the support cylinder 1000 and the rotating member 210, and the locking screw can firmly lock the support cylinder 1000 and the rotating member 210.

[0045] To improve the assembly efficiency, the supporting member 220 is screwed to the rotating member 210. The supporting screw 221 passes through the supporting hole of the supporting member 220 and is screwed into the screw hole of the rotating member 210. The rotating member 210 is provided with a first hole, the supporting member 220 is provided with a second hole, and both ends of the supporting pin 222 are respectively inserted and matched in the first hole and the second hole. There are two supporting pins 222, and the two supporting pins 222 are evenly distributed at intervals along the axis of the rotating member 210. Among them, the supporting member 220 can be a cylindrical structure to accommodate the convex structure below the connecting arm 2000. In other embodiments, there is no convex structure below the connecting arm 2000, and a supporting member 223 can be provided in the supporting member 220 to support the connecting arm 2000.

[0046] To limit the rotation of the connecting arm 2000, in some embodiments, the connecting arm 2000 has a slot, and the extending direction of the slot is perpendicular to the axis of the support cylinder 1000; the second fixing assembly 400 includes a mounting member 410 and a rotation preventing member 420 provided on the mounting member 410. The rotation preventing member 420 can approach the axis of the rotating member 210 to be inserted into the slot to limit the rotation of the connecting arm 2000 around the axis of the support cylinder 1000, or move away from the axis of the rotating member 210 to be withdrawn from the slot.

[0047] Combined Figure 3 As shown, before assembly, the support cylinder 1000 and the connecting arm 2000 need to be installed on the tooling. At this time, to avoid interference of the rotation preventing member 420 on the connecting arm 2000, the rotation preventing member 420 needs to be moved away. For this reason, the mounting member 410 and the rotation preventing member 420 are fixedly connected. The base 100 is provided with a sliding groove 110, and the extending direction of the sliding groove 110 is horizontal and coplanar with the axis of the rotating member 210. The sliding part at the lower end of the mounting member 410 is arranged in the sliding groove 110 and can slide in the sliding groove 110 so that the rotation preventing member 420 can approach or move away from the axis of the rotating member 210. Since the sliding groove 110 is horizontally arranged, without external force, the mounting member 410 and the base 100 can remain stationary, so that the rotation preventing member 420 can keep the position unchanged with the connecting arm 2000 to play a role in preventing the rotation of the connecting arm 2000.

[0048] Of course, the movement of the anti-rotation member 420 relative to the base 100 can also be achieved in other ways. Exemplarily, combined with Figure 2 As shown, the mounting member 410 is fixedly provided on the base 100, the anti-rotation member 420 is movably constrained by the mounting member 410, and can approach or move away from the axis of the rotating member 210. This setting enables the anti-rotation limit of the connecting arm 2000 to be completed only by moving the anti-rotation member 420, simplifies the operation, and reduces the operation force.

[0049] The mounting member 410 in this embodiment plays a supporting role, and is used to support the anti-rotation member 420 so that it is at the same height as the slot of the connecting arm 2000.

[0050] To prevent the anti-rotation member 420 from automatically withdrawing from the slot, in some embodiments, the second fixing assembly 400 further includes an anti-rotation elastic member 430. The anti-rotation elastic member 430 is disposed between the mounting member 410 and the anti-rotation member 420, and is used to apply an elastic force to the anti-rotation member 420 to make the anti-rotation member 420 approach the axis of the rotating member 210. This setting enables the anti-rotation member 420 to maintain a state of cooperation with the slot of the connecting arm 2000 without being affected by an external force, and improves the reliability of the position limitation of the connecting arm 2000 during the assembly process.

[0051] Among them, a sliding cylinder 413 is provided at the upper end of the mounting member 410. The anti-rotation member 420 is disposed in the sliding cylinder 413 and can approach or move away from the axis of the rotating member 210. The anti-rotation member 420 includes an anti-rotation tail and an anti-rotation head. The anti-rotation elastic member 430 is sleeved on the anti-rotation tail and is disposed in the sliding cylinder 413. One end of the anti-rotation elastic member 430 abuts against the mounting member 410, and the other end abuts against the anti-rotation head.

[0052] To prevent the anti-rotation member 420 from being pulled out of the slot due to accidental touch, the mounting member 410 is provided with a fixing hole and an anti-rotation screw hole communicating with the fixing hole. The second fixing assembly 400 further includes a fixing handle 440 and an anti-rotation bolt 450. A part of the fixing handle 440 is inserted through the fixing hole and is connected to the anti-rotation member 420. The anti-rotation bolt 450 is in threaded cooperation with the anti-rotation screw hole and a part of it can pass through the anti-rotation screw hole to abut against the fixing handle 440. The setting of the fixing handle 440 makes it more convenient for the anti-rotation member 420 to withdraw; in addition, when the anti-rotation bolt 450 abuts against the fixing handle 440, even if the fixing handle 440 is accidentally touched, the anti-rotation member 420 will not be pulled out of the slot, improving the relative stability of the support cylinder 1000 and the connecting arm 2000 during the assembly process. Among them, the outer periphery of the fixing handle 440 is provided with anti-slip lines to reduce the probability of slipping during holding.

[0053] To facilitate the insertion of the rotation prevention member 420 into the slot, one end of the rotation prevention member 420 close to the rotating member 210 is a frustum structure, that is, a chamfer is provided at one end of the rotation prevention member 420 close to the rotating member 210 to form a frustum structure, so that the outer diameter of the end is reduced, facilitating insertion into the slot; at the same time, the requirement for the position accuracy of the rotation prevention member 420 is reduced, thereby reducing the processing cost.

[0054] To achieve precise positioning and stable installation between the mounting member 410 and the base 100, in some embodiments, the bottom of the mounting member 410 is provided with a mounting pin hole and a mounting screw hole. The mounting pin 412 is partially inserted into the positioning pin hole of the base 100 and can be partially inserted into the mounting pin hole; the mounting screw 411 passes through the mounting hole of the base 100 and is screwed into the mounting screw hole.

[0055] The locking assembly 300 includes a locking sleeve 310 provided on the base 100 and a locking pin 320 provided in the locking sleeve 310 and having a locking portion. The rotating member 210 is provided with a locking hole to form a rotation prevention portion. The locking pin 320 can move relative to the locking sleeve 310 in the height direction to be inserted into the locking hole or withdrawn from the locking hole. The axis of the locking pin 320 is parallel and spaced from the axis of the rotating member 210 and is perpendicular to the rotation direction of the rotating member 210. When the locking pin 320 is inserted into the locking hole, the rotation of the rotating member 210 can be restricted, so that the rotating member 210 is fixed relative to the base 100.

[0056] The support cylinder 1000 has two chutes, and the two chutes are symmetrically arranged about the center line of the support cylinder 1000. To adapt to the structure of the support cylinder 1000, there are two locking holes, and the two locking holes are symmetrically arranged about the axis of the rotating member 210. After the rotating member 210 rotates 180°, the locking pin 320 can be inserted into the other locking hole, so that the connecting arm 2000 in the other chute of the support cylinder 1000 faces the rotation prevention member 420, improving the assembly efficiency.

[0057] To facilitate assembly, the axes of the rotation prevention member 420, the rotating member 210, and the locking pin 320 are located in the same plane. Among them, the rotation prevention member 420 and the locking pin 320 are located on both sides of the rotating member 210. This setting enables two hands to operate the locking pin 320 and the rotation prevention member 420 respectively during operation, and is convenient for observation, which helps to improve the operation efficiency.

[0058] In other embodiments, the plane in which the axis of the locking pin 320 and the axis of the rotating member 210 are located may form an angle or even be perpendicular to the plane in which the axis of the rotation prevention member 420 and the axis of the rotating member 210 are located.

[0059] In order to achieve stability in locking the rotating member 210, in some embodiments, the locking assembly 300 further includes a locking elastic member 330, which is disposed between the locking sleeve 310 and the locking pin 320 and is used to apply elastic force to the locking pin 320 so that it is inserted into the locking hole. In other embodiments, the position of the locking pin 320 can be fixed by the friction between the locking pin 320 and the locking sleeve 310.

[0060] To facilitate the lifting and lowering of the locking pin 320, in some embodiments, the locking assembly 300 further includes a locking handle 340 and a locking screw 350. A locking groove is provided on one side of the locking sleeve 310. The locking screw 350 is inserted into the locking groove, and one end is connected to the locking handle 340, and the other end is connected to the locking pin 320. The locking handle 340 can be turned to drive the locking pin 320 to rise and fall, thereby improving the convenience of operating the locking pin 320. For easy connection, the locking screw 350 is screwed into the screw hole of the locking pin 320.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Fixture for assembling the connecting arm and the sliding block, which is used to fix the connecting arm (2000) and the support cylinder (1000) of the arc extinguishing chamber, and is characterized in that, Comprising: A base (100); A first fixing component (200), the first fixing component (200) includes a rotating member (210) and a supporting member (220), the rotating member (210) is provided on the base (100) and is arranged to rotate about its own axis, the rotating member (210) is used to fix the support cylinder (1000), the supporting member (220) is fixedly provided on the rotating member (210) and is used to support the connecting arm (2000), and the rotating member (210) has an anti-rotation portion; A locking component (300), the locking component (300) is provided on the base (100), and its locking portion can move onto the rotation path of the anti-rotation portion to lock the rotating member (210) to the base (100), and can move outside the rotation path of the anti-rotation portion to unlock the rotating member (210); A second fixing component (400), the second fixing component (400) is provided on the base (100) and is arranged to limit the rotation of the connecting arm (2000) about the axis of the support cylinder (1000).

2. The tooling for assembling the connecting arm and the sliding block according to claim 1, characterized in that, The first fixing component (200) further includes a main shaft (230) and a main sleeve (240), the main sleeve (240) is provided on the base (100), the main shaft (230) is provided in the main sleeve (240) and is arranged to rotate relative to the main sleeve (240) about its own axis, and the rotating member (210) is fixedly provided on the main shaft (230).

3. The tooling for assembling the connecting arm and the sliding block according to claim 1, characterized in that The rotating member (210) is in a disc shape, and the rotating member (210) is provided with a positioning protrusion (211) and a locking screw hole, the positioning protrusion (211) is used for the positioning hole of the support cylinder (1000) to be inserted and matched, and a positioning screw (212) can pass through the support hole of the support cylinder (1000) and be threadedly matched with the locking screw hole.

4. The tooling for assembling the connecting arm and the sliding block according to claim 1, wherein, The connecting arm (2000) has a slot, and the extending direction of the slot is perpendicular to the axis of the support cylinder (1000); the second fixing component (400) includes a mounting member (410) and an anti-rotation member (420) provided on the mounting member (410), the anti-rotation member (420) can approach the axis of the rotating member (210) to be inserted into the slot to limit the rotation of the connecting arm (2000) about the axis of the support cylinder (1000), or, move away from the axis of the rotating member (210) to be withdrawn from the slot.

5. The tooling for assembling the connecting arm and the sliding block according to claim 4, characterized in that, The mounting member (410) and the anti-rotation member (420) are fixedly connected, among the base (100) and the mounting member (410), one is provided with a sliding slot (110), and the other is provided with a sliding portion, the extending direction of the sliding slot (110) is in the horizontal direction and is coplanar with the axis of the rotating member (210), the sliding portion is provided in the sliding slot (110) and can slide in the sliding slot (110) so that the anti-rotation member (420) can approach or move away from the axis of the rotating member (210).

6. The tooling for assembling the connecting arm and the sliding block according to claim 4, characterized in that, One end of the anti-rotation member (420) close to the rotating member (210) is in a frustum structure.

7. The fixture for assembling the connecting arm and the sliding block according to claim 4, characterized in that, The mounting member (410) is fixedly provided on the base (100), and the rotation preventing member (420) is movably constrained by the mounting member (410) and can approach or move away from the axis of the rotating member (210).

8. The tooling for assembling the connecting arm and the sliding block according to any one of claims 1-7, characterized in that The locking assembly (300) includes a locking sleeve (310) provided on the base (100) and a locking pin (320) provided in the locking sleeve (310) and having the locking portion. The rotating member (210) is provided with a locking hole to form the rotation preventing portion, and the locking pin (320) can move relative to the locking sleeve (310) in the height direction to be inserted into or withdrawn from the locking hole.

9. The tooling for assembling the connecting arm and the sliding block according to claim 8, characterized in that, There are two locking holes, and the two locking holes are symmetrically arranged about the axis of the rotating member (210).

10. The tooling for assembling the connecting arm and the sliding block according to claim 8, characterized in that, The locking assembly (300) further includes a locking elastic member (330), and the locking elastic member (330) can apply an elastic force to the locking pin (320) to insert it into the locking hole.