Spring assembly tool for arc extinguishing chamber

Abstract

The application belongs to the electrical technical field, and particularly relates to a spring assembly tool for an arc-extinguishing chamber, which comprises a base provided with a grommet, a support installed on the base, a first support plate installed on the support and provided with a first through hole, a rotating disc rotatably installed in the first through hole, and a pressing device threadedly connected with the rotating disc and provided with a limiting step and a limiting groove. A screw rod at the bottom of the arc-extinguishing chamber is inserted into the grommet for limiting, a bolt at the top of the arc-extinguishing chamber is embedded into the limiting groove of the pressing device, a guide rod and a spring seat at the top of the arc-extinguishing chamber are embedded into an assembly step, the rotating disc on the first support plate is rotated, and then the pressing device is moved downward to press the spring seat, the spring is compressed to align the bolt hole on the guide rod with the bolt hole on the spring seat, and then the bolt is inserted. The tool is manually rotated to realize the assembly of the arc-extinguishing chamber through the threaded transmission, and is more labor-saving and has higher assembly efficiency compared with direct manual pressing assembly.

Description

Technical Field

[0001] This invention belongs to the field of electrical technology, and in particular relates to an assembly fixture for an arc-extinguishing chamber spring. Background Technology

[0002] In the production of traditional insulated vacuum circuit breakers, the assembly of the vacuum interrupter is considered crucial. Currently, the assembly of the interrupter and related components relies primarily on manual adjustments by assembly workers. During the interrupter's production, the overtravel spring needs to be compressed before inserting the pin between the guide rod and the spring seat. The conventional method is manual labor, with workers relying on their own arm strength to hold it in place, sometimes even requiring the use of both hands and feet. This assembly process is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0003] To solve at least one of the above-mentioned technical problems, the present invention provides an assembly tooling for an arc-extinguishing chamber spring, and the technical solution adopted is as follows.

[0004] An assembly fixture for an arc-extinguishing chamber spring, comprising:

[0005] A base, on which a gasket is provided, the gasket being used for inserting a screw into the arc-extinguishing chamber;

[0006] The bracket is mounted on the base;

[0007] A first support plate is horizontally mounted on the bracket, and the first support plate is provided with a first through hole;

[0008] A turntable, which is rotatably mounted in the first through hole, and the turntable is capable of rotating within the first through hole;

[0009] A clamping device is threadedly connected to the turntable. The clamping device is provided with a limiting step and a limiting groove. The limiting step is used to cooperate with the guide rod and spring seat on the arc-extinguishing chamber, and the limiting groove is used to cooperate with the pin on the arc-extinguishing chamber.

[0010] The arc-extinguishing chamber spring assembly fixture according to embodiments of the present invention has at least the following beneficial effects: During use, the pad is placed on the base, the screw at the bottom of the arc-extinguishing chamber is inserted into the pad for limiting, the pin at the top of the arc-extinguishing chamber is embedded in the limiting groove of the clamping device, the guide rod and spring seat at the top of the arc-extinguishing chamber are embedded in the assembly step, the turntable on the first support plate is rotated, and the turntable and the clamping device achieve threaded transmission, thereby causing the clamping device to move downward, thereby pressing down the spring seat, causing the spring connected to the spring seat to compress, and aligning the pin hole on the guide rod with the pin hole on the spring seat. This fixture achieves arc-extinguishing chamber assembly by manually rotating the turntable and through threaded transmission, which is more labor-saving and has higher assembly efficiency than direct manual pressing assembly.

[0011] According to other embodiments of the arc-extinguishing chamber spring assembly fixture of the present invention, the turntable includes a ring body, a connecting block, a fastener, and a connecting rod. The connecting block is disposed in the middle of the ring body, and the ring body and the connecting block are connected by the connecting rod. One end of the connecting block is provided with a boss, and the outer periphery of the boss is provided with an external thread. The connecting block and the boss are provided with a through threaded channel. The clamping device is threadedly connected through the threaded channel. The boss is assembled in the first through hole, and the fastener is threadedly connected to the boss to limit the boss. The boss is rotatable in the first through hole.

[0012] According to other embodiments of the arc-extinguishing chamber spring assembly tooling of the present invention, the first through hole is a stepped hole structure, and a rolling element is provided between the fastener and the stepped surface of the first through hole.

[0013] According to other embodiments of the arc-extinguishing chamber spring assembly tooling of the present invention, the clamping device includes a bolt and a clamping sleeve. The clamping sleeve includes a first sleeve and a second sleeve coaxially connected. The diameter of the first sleeve is smaller than the diameter of the second sleeve. The end of the first sleeve is used to abut against the nut of the bolt. The limiting groove is provided on the side wall of the second sleeve, and the limiting step is provided inside the second sleeve.

[0014] According to other embodiments of the arc-extinguishing chamber spring assembly fixture of the present invention, the first support plate has fixed limiting plates on both sides, the bolt nuts are provided with first wing plates on both sides, the second sleeve is provided with second wing plates on both sides, and the first wing plates and the second wing plates are attached to the side end faces of the limiting plates.

[0015] According to other embodiments of the present invention, in the arc-extinguishing chamber spring assembly fixture, a second support plate is horizontally mounted on the bracket, the second support plate is located below the first support plate, and the second support plate is provided with a third through hole that matches the middle part of the arc-extinguishing chamber.

[0016] According to other embodiments of the arc-extinguishing chamber spring assembly tooling of the present invention, a fixing sleeve is provided in the third through hole, the fixing sleeve includes an open ring and an end plate, the end plate is disposed at the end of the open ring, the open ring is assembled inside the third through hole, and the end plate is pressed against the edge of the third through hole.

[0017] According to other embodiments of the arc-extinguishing chamber spring assembly fixture of the present invention, a first limiting hole is provided on the opposite side of the open ring, and a second limiting hole is provided on the second support plate through the third through hole. The second limiting hole is aligned with the first limiting hole, and a limiting rod is inserted through the aligned first limiting hole and second limiting hole.

[0018] According to other embodiments of the arc-extinguishing chamber spring assembly tooling of the present invention, a plurality of connecting rods are provided, and each of the connecting rods is arranged circumferentially at intervals inside the ring body.

[0019] According to other embodiments of the present invention, in the arc-extinguishing chamber spring assembly fixture, the first sleeve is embedded between the first wing plates on both sides of the nut and abuts against the nut.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0023] Figure 2 This is a side sectional view of an embodiment of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the bolt structure in one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the compression sleeve in one embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the fixing sleeve in one embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the turntable in one embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the arc-extinguishing chamber.

[0030] Figure 9 This is a side view of a compressed arc-extinguishing chamber according to an embodiment of the present invention. Detailed Implementation

[0031] The following will describe the concept and technical effects of the present invention clearly and completely with reference to embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present invention, if directional descriptions are involved, such as "up", "down", "front", "back", "left", "right" etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] In the description of the embodiments of the present invention, if a feature is referred to as "setting," "fixing," "connecting," or "installing" on another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means one or more; if "multiple" is involved, it means two or more; if "greater than," "less than," or "exceeds," it should be understood as excluding the stated number; if "above," "below," or "within," it should be understood as including the stated number. If "first" or "second" is involved, it should be understood as used to distinguish technical features, and not as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the production of traditional insulated vacuum circuit breakers, the assembly of the vacuum interrupter is considered crucial. Currently, the assembly of the interrupter and related components relies primarily on manual adjustments by assembly workers. During the interrupter's production, the overtravel spring needs to be compressed before inserting the pin between the guide rod and the spring seat. The conventional method is manual labor, with workers relying on their own arm strength to hold it in place, sometimes even requiring the use of both hands and feet. This assembly process is time-consuming, labor-intensive, and inefficient.

[0035] See Figures 1 to 9 This invention provides an assembly fixture for an arc-extinguishing chamber spring, comprising a base 100, a bracket 200, a first support plate 300, a turntable 400, and a clamping device 500. The base 100 has a sleeve 101 for inserting a screw 002 into the arc-extinguishing chamber 001. The bracket 200 is mounted on the base 100. The first support plate 300 is horizontally mounted on the bracket 200 and has a first through hole 301. The turntable 400 is rotatably mounted in the first through hole 301 and can rotate within it. The clamping device 500 is threadedly connected to the turntable 400. The clamping device 500 has a limiting step 524 and a limiting groove 523. The limiting step 524 is used to engage with the guide rod 002 and spring seat 003 on the arc-extinguishing chamber 001, and the limiting groove 523 is used to engage with the pin 004 on the arc-extinguishing chamber 001.

[0036] During use, the pad 101 is placed on the base 100, the screw 002 at the bottom of the arc-extinguishing chamber 001 is inserted into the pad 101 for limiting, the pin 004 at the top of the arc-extinguishing chamber 001 is embedded in the limiting groove 523 of the clamping device 500, and the guide rod 002 and spring seat 003 at the top of the arc-extinguishing chamber 001 are embedded in the limiting step 524. The turntable 400 on the first support plate 300 is rotated, and the turntable 400 and the clamping device 500 achieve threaded transmission, thereby causing the clamping device 500 to move downward and press down the spring seat 003, so that the spring connected to the spring seat 003 is compressed, and the pin hole on the guide rod 002 is aligned with the pin hole on the spring seat 003. This tooling achieves the assembly of the arc-extinguishing chamber 001 by manually rotating the turntable 400 and through threaded transmission, which is more labor-saving and has higher assembly efficiency than direct manual pressing assembly.

[0037] The base 100 is a rectangular plate structure, the bracket 200 is a channel steel structure, the bracket 200 is vertically fixed on the base 100, and the first support plate 300 is horizontally fixed on the top of the bracket 200. The first support plate 300 is the same width as the bracket 200.

[0038] See Figure 2 , Figure 7 In some embodiments, the turntable 400 includes a ring 401, a connecting block 402, a fastener 405, and a connecting rod 403. The connecting block 402 is located in the middle of the ring 401. The ring 401 and the connecting block 402 are connected by the connecting rod 403. One end of the connecting block 402 is provided with a boss 404. The connecting block 402 and the boss 404 are provided with a through threaded channel. The outer periphery of the boss 404 is provided with an external thread. The clamping device 500 is threadedly connected to the threaded channel of the connecting block 402 and the boss 404. The boss 404 is assembled in the first through hole 301. The fastener 405 is threadedly connected to the boss 404 to limit the boss 404. The boss 404 can rotate in the first through hole 301.

[0039] Furthermore, there are multiple connecting rods 403, and each connecting rod 403 is arranged circumferentially at intervals inside the ring body 401.

[0040] Specifically, the ring 401 is a closed circular ring structure, the connecting block 402 is a hexahedral structure, and there are six connecting rods 403. One end of each connecting rod 403 is connected to one of the six faces of the connecting block 402, and the other end is connected to the ring 401. The boss 404 is a cylindrical structure welded to the end face of the connecting block 402. The connecting block 402 has a through threaded channel inside, and the boss 404 also has a through threaded channel inside. The threaded channel inside the connecting block 402 is aligned and communicates with the threaded channel inside the boss 404.

[0041] In some embodiments, the clamping device 500 includes a bolt 510 and a clamping sleeve 520. The clamping sleeve 520 includes a first sleeve 521 and a second sleeve 522 coaxially connected. The diameter of the first sleeve 521 is smaller than the diameter of the second sleeve 522. The end of the first sleeve 521 is used to abut against the nut 512 of the bolt 510. A limiting groove 523 is provided on the side wall of the second sleeve 522, and a limiting step 524 is provided inside the second sleeve 522.

[0042] Specifically, the bolt 511 of the bolt 510 is threaded through the threaded channel of the connecting block 402 and the boss 404, and the nut 512 of the bolt 510 is located below the first support plate 300. A slot 513 is provided in the middle of the nut 512 of the bolt 510 to facilitate the use of a flathead screwdriver to insert and tighten the bolt 510.

[0043] The first sleeve 521 is installed at one end of the second sleeve 522 and is connected to the second sleeve 522. The first sleeve 521 and the second sleeve 522 are coaxially arranged. The two sides of the cylinder wall of the second sleeve 522 are provided with opposing rectangular grooves. The rectangular grooves form an opening on the end face of the second sleeve 522 away from the first sleeve 521. The rectangular groove is the limiting groove 523 for the pin 004 at the top of the arc-extinguishing chamber 001 to be inserted. The inner wall of the second sleeve 522 is provided with a limiting step 524. The inner diameter of the limiting step 524 is slightly larger than the diameter of the spring seat 003 at the top of the arc-extinguishing chamber 001. The spring seat 003 can move up and down in the limiting step 524.

[0044] During operation, the turntable 400 is rotated, and the clamping sleeve 520 is fitted onto the pin 004 on the spring seat 003 to press down the spring. Through the threaded transmission, the bolt 510 drives the clamping sleeve 520 downward, eventually aligning the pin hole on the spring seat 003 with the pin hole on the pressure rod.

[0045] In order to ensure that the clamping device 500 remains vertical during the downward movement, in some embodiments, the first support plate 300 is fixed with limiting plates 302 on both sides, the nuts 512 of the bolt 510 are provided with first wing plates 514 on both sides, and the second sleeve 522 is provided with second wing plates 525 on both sides. The first wing plates 514 and the second wing plates 525 are attached to the side end face of the limiting plate 302.

[0046] Specifically, the limiting plate 302 is a rectangular plate structure, and the limiting plate 302 is provided on both sides of the bracket 200. The limiting plate 302 is fixed to the first support plate 300 and the side plate of the bracket 200.

[0047] Two opposing first wing plates 514 are vertically fixed to the nut 512 of the bolt 510. The two first wing plates 514 are located on both sides of the slot 513. The two first wing plates 514 on the bolt 510 are respectively attached to the side end faces of the two limiting plates 302. The side end faces of the limiting plates 302 play a limiting role. During the rotation of the turntable 400, under the limitation of the limiting plates 302 and the first wing plates 514, the bolt 510 can only move downwards. There will be no phenomenon that the bolt 510 will rotate with the turntable 400 during the rotation.

[0048] The second wing plates 525 on both sides of the second sleeve 522 are located on both sides of the limiting groove 523. The two second wing plates 525 are also attached to the side end face of the limiting plate 302. The limiting plate 302 and the second wing plates 525 together play a limiting role, ensuring that the pressing sleeve 520 can only move downward.

[0049] In some embodiments, the first sleeve 521 is embedded between the first wing plates 514 on both sides of the nut 512 and abuts against the nut 512.

[0050] Specifically, the distance between the two first wing plates 514 is slightly larger than the outer diameter of the first sleeve 521, and one end of the first sleeve 521 is embedded between the two first wing plates 514 and pressed against the middle of the nut 512.

[0051] In order to improve the smoothness of the turntable 400 during rotation, in some embodiments, the first through hole 301 is a stepped hole structure, and a rolling element 406 is provided between the fastener 405 and the stepped surface of the first through hole 301.

[0052] Specifically, the stepped surface in the first through hole 301 faces downwards from the first support plate 300. The fastener 405 is a disc-shaped structure with an internal threaded hole in the middle. The outer diameter of the fastener 405 is smaller than the inner diameter of the stepped structure in the first through hole 301. The rolling element 406 is a ball structure. The internal threaded hole in the middle of the fastener 405 is screwed onto the external thread on the outer wall of the boss 404, so that multiple rolling elements 406 are pressed between the fastener 405 and the stepped surface in the first through hole 301. During the rotation of the turntable 400, the boss 404 and the first through hole 301 are connected by rolling elements 406, making the rotation smoother.

[0053] To further secure the arc-extinguishing chamber 001, in some embodiments, a second support plate 500 is horizontally mounted on the bracket 200. The second support plate 500 is located below the first support plate 300, and the second support plate 500 has a third through hole 501 that mates with the center of the arc-extinguishing chamber 001. The central axis of the arc-extinguishing chamber 001 can pass through the third through hole 501, thereby further securing the arc-extinguishing chamber 001 and effectively improving the stability of the arc-extinguishing chamber 001 on this fixture.

[0054] In some other embodiments, a fixing sleeve 600 is provided in the third through hole 501. The fixing sleeve 600 includes an open ring 610 and an end plate 620. The end plate 620 is located at the end of the open ring 610. The open ring 610 is assembled inside the third through hole 501, and the end plate 620 is pressed against the edge of the third through hole 501.

[0055] Furthermore, the open ring 610 has a first limiting hole 611 on the opposite side, and the second support plate 500 has a second limiting hole 502 that passes through the third through hole 501. The second limiting hole 502 is aligned with the first limiting hole 611, and a limiting rod is inserted into the aligned first limiting hole 611 and second limiting hole 502.

[0056] Specifically, the second limiting hole 502 extends through the second support plate 500 along its width direction, and also extends through the third through hole 501. The open ring 610 is a semi-circular ring structure, and its height is greater than the thickness of the second support plate 500. When the open ring 610 is assembled into the third through hole 501, the first limiting hole 611 on the open ring 610 will align with the second limiting hole 502 on the second support plate 500. The central shaft of the arc-extinguishing chamber 001 passes through the inside of the open ring 610. A limiting rod is inserted into the aligned first limiting hole 611 and second limiting hole 502 to hold the central shaft of the arc-extinguishing chamber 001 inside the open ring 610, thereby keeping the arc-extinguishing chamber 001 stable.

[0057] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A tooling for assembling an arc-extinguishing chamber spring, characterized in that: include A base, on which a gasket is provided, the gasket being used for inserting a screw into the arc-extinguishing chamber; The bracket is mounted on the base; A first support plate is horizontally mounted on the bracket, and the first support plate is provided with a first through hole; A turntable, which is rotatably mounted in the first through hole, and the turntable is capable of rotating within the first through hole; A clamping device is threadedly connected to the turntable. The clamping device is provided with a limiting step and a limiting groove. The limiting step is used to cooperate with the guide rod and spring seat on the arc-extinguishing chamber. The limiting groove is used to cooperate with the pin on the arc-extinguishing chamber. The turntable includes a ring body, a connecting block, a fastener, and a connecting rod. The connecting block is located in the middle of the ring body. The ring body and the connecting block are connected by the connecting rod. One end of the connecting block is provided with a boss. The outer periphery of the boss is provided with an external thread. The connecting block and the boss are provided with a through threaded channel. The clamping device is threaded through the threaded channel and connected to it. The boss is assembled in the first through hole. The fastener is threadedly connected to the boss to limit the boss. The boss can rotate in the first through hole. The first through hole has a stepped hole structure, and a rolling element is provided between the fastener and the stepped surface of the first through hole; The clamping device includes a bolt and a clamping sleeve. The clamping sleeve includes a first sleeve and a second sleeve coaxially connected. The diameter of the first sleeve is smaller than the diameter of the second sleeve. The end of the first sleeve is used to abut against the nut of the bolt. The limiting groove is provided on the side wall of the second sleeve, and the limiting step is provided inside the second sleeve. The first support plate has fixed limiting plates on both sides, the bolt nut has a first wing plate on both sides, the second sleeve has a second wing plate on both sides, and the first wing plate and the second wing plate are attached to the side end face of the limiting plate.

2. The arc-extinguishing chamber spring assembly fixture according to claim 1, characterized in that: A second support plate is horizontally mounted on the bracket. The second support plate is located below the first support plate and has a third through hole that matches the center of the arc-extinguishing chamber.

3. The arc-extinguishing chamber spring assembly fixture according to claim 2, characterized in that: A fixing sleeve is provided in the third through hole. The fixing sleeve includes an open ring and an end plate. The end plate is located at the end of the open ring. The open ring is assembled inside the third through hole. The end plate is pressed against the edge of the third through hole.

4. The arc-extinguishing chamber spring assembly fixture according to claim 3, characterized in that: The open ring is provided with a first limiting hole on the opposite side, and the second support plate is provided with a second limiting hole that passes through the third through hole. The second limiting hole is aligned with the first limiting hole, and a limiting rod is inserted through the aligned first limiting hole and second limiting hole.

5. The arc-extinguishing chamber spring assembly fixture according to claim 1, characterized in that: The connecting rods are provided in multiples, and each connecting rod is arranged circumferentially at intervals inside the ring body.

6. The arc-extinguishing chamber spring assembly fixture according to claim 1, characterized in that: The first sleeve is inserted between the first wing plates on both sides of the nut and abuts against the nut.

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