CN220445561U - Mounting fixture and welding set - Google Patents

Abstract

The utility model discloses a fixing clamp and a welding device, and belongs to the technical field of welding, wherein the fixing clamp comprises a support frame, a positioning seat, a positioning assembly and a pre-pressing assembly, the positioning seat, the positioning assembly and the pre-pressing assembly are all arranged on the support frame, the positioning seat is used for placing a first busbar, the positioning assembly comprises first positioning blocks and second positioning blocks which are arranged at intervals, and a first driving piece connected with the second positioning blocks, the second busbar is placed between the first positioning blocks and the second positioning blocks, and the second busbar is propped against the first busbar; the first driving piece is used for driving the second positioning block to compress the second busbar on the first positioning block, and the pre-pressing assembly is used for compressing the second busbar on the first busbar on the positioning seat. The fixing clamp provided by the utility model effectively ensures the relative position between the first busbar and the second busbar, so as to prevent the first busbar and the second busbar from deforming when the welding assembly is welded, and improve the yield of finished products.

Description

Mounting fixture and welding set

Technical Field

The utility model relates to the technical field of welding, in particular to a fixing clamp and a welding device.

Background

The frame circuit breaker is a switching device which can not only switch on and switch off normal load current and overload current, but also switch on and switch off short-circuit current. The busbar is an important component of the whole frame circuit breaker, and is usually spliced in a welding mode due to the characteristics of the frame circuit breaker.

In the prior art, welding of the busbar is usually completed manually, i.e. the operator manually puts the busbar together and then completes the welding. However, a large amount of heat is generated in the welding process, the busbar is deformed when being heated, the size of a welded finished product is difficult to be qualified, and the yield is low. And the deformed busbar directly influences the assembly of the whole frame breaker, thereby causing serious economic loss for enterprises.

Disclosure of Invention

The utility model aims to provide a fixing clamp which can effectively prevent deformation during busbar welding and improve the yield of finished products.

To achieve the purpose, the utility model adopts the following technical scheme:

there is provided a fixture for welding a first busbar and a second busbar of a frame circuit breaker, the fixture comprising:

a support frame;

the positioning seat is arranged on the supporting frame and is used for placing the first busbar;

the positioning assembly is arranged on the support frame and is arranged on one side of the positioning seat, on which the first busbar is placed, along a first direction, and comprises a first positioning block, a second positioning block and a first driving piece, wherein the first positioning block and the second positioning block are arranged at intervals along a second direction, and the first driving piece is connected with the second positioning block, and the first direction and the second direction are mutually perpendicular; wherein,

the first positioning block and the second positioning block are used for placing the second busbar, and the second busbar is abutted against the first busbar;

the first driving piece is used for driving the second positioning block to compress the second busbar on the first positioning block along the second direction; and

the pre-pressing assembly is arranged on the supporting frame, the pre-pressing assembly is arranged on one side, far away from the positioning seat, of the positioning assembly along the first direction, and the pre-pressing assembly is used for pressing the second busbar on the first busbar on the positioning seat along the first direction.

Optionally, the supporting frame comprises a supporting main body frame, a movable plate, a first supporting block and a second supporting block, and the pre-pressing assembly is arranged on the supporting main body frame; the movable plate is detachably connected with the support main frame, and the positioning seat is arranged on the movable plate; the first supporting block is arranged on the movable plate, and the first positioning block is arranged on the first supporting block; the second supporting block is arranged on the movable plate, and the first driving piece is arranged on the second supporting block.

Optionally, a stop bar is arranged on one side of the first positioning block along the third direction, and a limiting surface is arranged on the stop bar and is used for being attached to one side edge of the second busbar along the third direction; the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, a first backing plate is arranged on the first supporting block, a first strip hole is arranged on the first backing plate, and the first strip hole extends along the second direction; the support frame also comprises a first screw-connection piece, and the first screw-connection piece penetrates through the first strip-shaped hole and is in threaded connection with the first support block.

Optionally, the first backing plate is provided with a second strip hole, the second strip hole extends along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the fixing clamp further comprises a second screw-connection piece, and the second screw-connection piece penetrates through the second strip-shaped hole and is in threaded connection with the first positioning block.

Optionally, a positioning groove is formed in the positioning seat and used for placing the first busbar, an opening is formed in a first side of the positioning groove along a third direction, a first limiting side face is formed in a second side of the positioning groove along the third direction, and one side edge of the first busbar along the third direction can be attached to the first limiting side face; the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, a second backing plate is arranged on the second supporting block, a limiting plate is arranged on the second backing plate along the second direction towards one side edge of the first positioning block in an extending mode, and the second positioning block is arranged on the limiting plate in a sliding mode.

Optionally, the pre-pressing assembly comprises a limiting block, a pre-pressing block, an elastic piece and a second driving piece, and the pre-pressing block is in sliding connection with the limiting block; the elastic piece is arranged between the limiting block and the pre-pressing block, and enables the pre-pressing block to have a tendency of sliding towards the positioning assembly along the first direction; the second driving piece is arranged on the supporting frame and connected with the limiting block, and the second driving piece is used for driving the limiting block to drive the pre-pressing block to tightly press the second busbar on the first busbar on the positioning seat along the first direction.

Optionally, the first driving member includes a first front air port and a first rear air port, and the second driving member includes a second front air port and a second rear air port; the fixing clamp further comprises a triple piece, a first control valve and a second control valve, wherein the triple piece is used for being communicated with the air compression equipment; the first control valve comprises a first air inlet and two first air outlets, the first air inlet is communicated with the triple piece, one of the two first air outlets is communicated with the first front air port, and the other of the two first air outlets is communicated with the first rear air port; the second control valve comprises a second air inlet and two second air outlets, the second air inlet is communicated with the triple piece, one of the two second air outlets is communicated with the second front air port, and the other of the two second air outlets is communicated with the second rear air port.

Another object of the present utility model is to provide a welding device, including a welding assembly and the above-mentioned fixing fixture, where the welding assembly is disposed on one side of the fixing fixture, and the welding assembly is used for welding the first busbar and the second busbar on the fixing fixture.

The beneficial effects are that:

when the fixing clamp provided by the utility model is used, the first busbar is firstly arranged on the positioning seat, then the second busbar is arranged between the first positioning block and the second positioning block, the second busbar is abutted against the first busbar, the second positioning block is driven by the first driving piece to compress the second busbar on the first positioning block along the second direction, and finally the second busbar is compressed on the first busbar along the first direction by the pre-compression assembly, so that firm and stable abutting between the second busbar and the first busbar is realized, the relative position between the first busbar and the second busbar is effectively ensured, the first busbar and the second busbar are prevented from deforming during welding, and the yield of finished products is improved.

According to the welding device provided by the utility model, the first busbar and the second busbar are stably abutted together through the fixing clamp, the relative positions of the first busbar and the second busbar are ensured, the first busbar and the second busbar are effectively prevented from deforming during welding, and the yield of finished products is improved.

Drawings

FIG. 1 is a schematic view of a fixing clamp according to the present utility model;

FIG. 2 is a schematic view of a portion of a structure of a fixing clip according to the present utility model;

FIG. 3 is a schematic diagram of a busbar according to the present utility model;

FIG. 4 is a schematic diagram of the connection of the air source control system provided by the present utility model;

FIG. 5 is a schematic view of the structure of the support body frame according to the present utility model;

FIG. 6 is a schematic view of a portion of a structure of a fixing clip according to the present utility model;

FIG. 7 is a schematic view of a positioning structure of a first positioning block according to the present utility model;

FIG. 8 is a schematic view of a positioning seat according to the present utility model;

fig. 9 is a schematic view of a positioning structure of a second positioning block provided by the present utility model;

fig. 10 is a schematic view of a portion of the structure of the precompaction assembly provided by the present utility model.

In the figure:

10. a first busbar; 11. a receiving groove; 20. a second busbar;

100. a support frame; 110. a support main body frame; 111. a base; 1111. a second groove; 112. a top plate; 113. a fixing plate; 114. a connecting plate; 1141. a first groove; 120. a movable plate; 121. a third groove; 122. a fifth groove; 123. a sixth groove; 130. a first support block; 140. a second support block; 150. a first backing plate; 151. a first elongated aperture; 152. a fourth groove; 153. a second elongated aperture; 154. a first limit groove; 160. a first screw; 170. a second backing plate; 171. a limiting plate; 172. a seventh groove; 173. the second limit groove;

200. a positioning seat; 210. a positioning groove; 211. a first limit side; 212. the second limiting side surface; 220. a third elongated aperture;

300. a positioning assembly; 310. a first positioning block; 311. a barrier strip; 3111. a limiting surface; 320. a second positioning block; 330. a first driving member; 331. a first front gas port; 332. a first rear gas port;

400. a pre-pressing assembly; 410. a limiting block; 420. pre-pressing blocks; 430. an elastic member; 440. a second driving member; 441. a second front gas port; 442. a second rear gas port; 450. a guide shaft; 460. a sliding bearing; 471. a fixed block; 472. a connecting block; 473. a clamping groove; 480. a flange block; 481. a connection part; 482. a limit part;

510. a triplet; 520. a first control valve; 521. a first air inlet; 522. a first air outlet; 530. a hand slide valve; 540. a two-way joint; 550. a second control valve; 551. a second air inlet; 552. a second air outlet; 560. a three-way joint;

610. a second screw; 620. and a third screw.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a fixing jig applied to welding a first busbar 10 and a second busbar 20 of a frame circuit breaker.

Specifically, the fixing fixture is used for fixing the first busbar 10 and the second busbar 20 of the frame circuit breaker, and the fixing fixture comprises a supporting frame 100, a positioning seat 200, a positioning assembly 300 and a pre-pressing assembly 400. Wherein, positioning seat 200, positioning component 300 and pre-compaction subassembly 400 all set up on support frame 100, and positioning seat 200 is used for placing first female row 10, and positioning component 300 sets up in the one side of placing first female row 10 of positioning seat 200 along the first direction, and pre-compaction subassembly 400 sets up in the one side that positioning component 300 kept away from positioning seat 200 along the first direction. In fig. 1, the a direction is taken as a first direction as an example, and the first direction may be a vertical direction.

Specifically, the positioning assembly 300 includes a first positioning block 310 and a second positioning block 320 that are disposed at intervals along the second direction, and a first driving member 330 connected to the second positioning block 320, where the second busbar 20 is placed between the first positioning block 310 and the second positioning block 320, and the second busbar 20 abuts against the first busbar 10. The first direction and the second direction are perpendicular to each other, and in fig. 1, the b direction is taken as the second direction as an example, and the second direction may be a horizontal direction.

Specifically, the first driving member 330 is configured to drive the second positioning block 320 to press the second busbar 20 onto the first positioning block 310 along the second direction, and the pre-pressing assembly 400 is configured to press the second busbar 20 onto the first busbar 10 on the positioning seat 200 along the first direction.

For example, during use, the first busbar 10 is placed on the positioning seat 200, then the second busbar 20 is placed between the first positioning block 310 and the second positioning block 320, the second busbar 20 is abutted against the first busbar 10, the second positioning block 320 is driven by the first driving piece 330 to compress the second busbar 20 on the first positioning block 310 along the second direction, and finally the second busbar 20 is compressed on the first busbar 10 along the first direction by the pre-compression assembly 400, so that the abutment between the second busbar 20 and the first busbar 10 is firm and stable, the relative position between the first busbar 10 and the second busbar 20 is effectively ensured, the first busbar 10 and the second busbar 20 are prevented from deforming during welding, and the yield of finished products is improved.

In one possible embodiment, as shown in fig. 1 and 4, the first driving member 330 includes a first front air port 331 and a first rear air port 332, and the fixing fixture further includes a triple member 510 and a first control valve 520, the triple member 510 being configured to be in communication with an air compression device; the first control valve 520 includes a first air inlet 521 and two first air outlets 522, where the first air inlet 521 is disposed in communication with the triplet 510, one of the two first air outlets 522 is disposed in communication with the first front air port 331, and the other of the two first air outlets 522 is disposed in communication with the first rear air port 332. The air compression device and the triplet 510 are related art, and are not emphasized in this application, and are not described in detail here. In this embodiment, the air source control system composed of the triple piece 510, the first control valve 520 and the first driving piece 330 controls the communication switching between the two first air outlets 522 and the first air inlet 521 through the first control valve 520, so as to realize the setting and resetting actions of the first driving piece 330, and further realize the movement of the first positioning block 310 driven by the first driving piece 330, so as to facilitate the control of the first driving piece 330.

Illustratively, the first driver 330 may be a cylinder, specifically, for example, a biaxial cylinder, to ensure that the second positioning block 320 moves stably.

Illustratively, the first control valve 520 may be a manual valve.

Illustratively, the first control valve 520 and the triplet 510 are both disposed on the support 100.

Further, the fixing clamp further comprises a hand slide valve 530, a first end of the hand slide valve 530 is communicated with the triple piece 510, a second end of the hand slide valve 530 is used for being connected with air compression equipment, and the communication and disconnection between the triple piece 510 and the air compression equipment can be controlled through the hand slide valve 530. Illustratively, a hand slide 530 is disposed on the support 100.

Further, the end of the triplet 510 connected to the first control valve 520 and the first end of the hand slide valve 530 are provided with two-way connectors 540, which facilitate connection of the air pipes. The two-way joint 540 may be an L-shaped threaded two-way joint 540.

In this embodiment, referring to fig. 3, the first busbar 10 and the second busbar 20 are both plate-shaped, the first busbar 10 is disposed perpendicular to the second busbar 20, and one side edge of the second busbar 20 abuts against the first busbar 10. In this embodiment, the first positioning block 310 and the second positioning block 320 clamp the second busbar 20, so as to realize positioning of the second busbar 20 along the second direction, so as to ensure that the second busbar 20 and the first busbar 10 after welding are in a vertical relationship; the prepressing assembly 400 presses the second busbar 20 onto the first busbar 10 to ensure that one side edge of the second busbar 20 is abutted onto the first busbar 10, and further ensure that the dimension H of the whole of the welded first busbar 10 and the welded second busbar 20 along the first direction meets the dimension requirement, and the whole of the welded first busbar 10 and the welded second busbar 20 is suitable for assembly of a frame circuit breaker.

Specifically, the first busbar 10 is provided with a receiving groove 11, and the second busbar 20 is inserted into the receiving groove 11 and abuts against the bottom surface of the receiving groove 11. In the present embodiment, when the second busbar 20 is placed between the first positioning block 310 and the second positioning block 320, the second busbar 20 is inserted into the accommodating groove 11 while the second busbar 20 is placed in close contact with the first positioning block 310. The process can be completed manually by an operator, or can be completed by grabbing and placing by a mechanical arm, and the process is not limited in the application. Illustratively, the process of placing the first busbar 10 on the nest 200 may also be accomplished manually by an operator or by robotic arm grasping placement.

In the present embodiment, referring to fig. 1, 2 and 5, the support frame 100 includes a support body frame 110, a movable plate 120, a first support block 130 and a second support block 140. Wherein, the support body frame 110 is provided with a pre-pressing assembly 400; the movable plate 120 is detachably connected with the support main frame 110, and a positioning seat 200 is arranged on the movable plate 120; the first support block 130 and the second support block 140 are both disposed on the movable plate 120, the first support block 130 is provided with a first positioning block 310, and the second support block 140 is provided with a first driving member 330. In this embodiment, the movable plate 120 is detachably connected with the support main frame 110, so that the positioning seat 200 and the positioning assembly 300 can be integrally replaced with respect to the first busbar 10 and the second busbar 20 with different sizes, which is convenient and reliable. In addition, by the arrangement of the first support block 130 and the second support block 140, the first positioning block 310 and the second positioning block 320 keep a proper distance from the positioning seat 200, that is, the moment arms of the first positioning block 310 and the second positioning block 320 relative to the second busbar 20 are ensured to be large enough, so that the second busbar 20 is prevented from tilting relative to the first busbar 10 in the welding process.

Illustratively, the first support block 130 and the second support block 140 are each provided with at least one, specifically, for example, the first support block 130 is provided with two, and the second support block 140 is provided with one.

Specifically, the supporting body frame 110 includes a base 111, a top plate 112, and a fixing plate 113, the fixing plate 113 is disposed to extend along a first direction, a first end of the fixing plate 113 is fixedly connected to the base 111, and a second end of the fixing plate 113 is fixedly connected to the top plate 112. Further specifically, the fixing plate 113 is provided in plurality, for example, two fixing plates 113 are provided at both side edges of the base 111 in the second direction, so that the supporting body frame 110 is held stable. Wherein, the base 111 is provided with a movable plate 120, and the top plate 112 is provided with a pre-pressing assembly 400. For example, the first control valve 520 may be disposed on one fixed plate 113 at a first side in the second direction, and the hand slide valve 530 and the triple piece 510 are disposed on the other fixed plate 113 at the first side in the second direction.

Specifically, the supporting main body frame 110 further includes two connection plates 114, the two connection plates 114 are respectively disposed at two ends of the top plate 112 along the second direction, and the second ends of the fixing plates 113 are fixedly connected with the connection plates 114. More specifically, the connecting plate 114 is provided with a first groove 1141, an opening of the first groove 1141 faces away from the base 111 along the first direction, and the connecting plate 114 is disposed in the first groove 1141. Wherein, the fixed plate 113 is located between the two connecting plates 114 along the second direction, and the two fixed plates 113 on the same side along the second direction are respectively located on two sides of the top plate 112.

Specifically, a plurality of second grooves 1111 are formed on both edges of the base 111 along the second direction, the second grooves 1111 are disposed in one-to-one correspondence with the fixing plates 113, and the fixing plates 113 are disposed in the second grooves 1111.

In the present embodiment, the support body frame 110 may be fixed by bolts. Illustratively, when the supporting body frame 110 is assembled, the fixing plate 113 is placed in the second groove 1111 and fixed by bolts, then the connecting plate 114 is fixed on the fixing plate 113 by bolts, and finally the top plate 112 is placed in the first groove 1141 and fixed by bolts, so that the assembly can be completed by a single person, and the assembly is convenient and safe.

In the present embodiment, referring to fig. 2, 6 and 7, the first supporting block 130 is provided with a first pad 150, the first pad 150 is provided with a first elongated hole 151, and the first elongated hole 151 extends along the second direction. Further, the support 100 further includes a first screw 160, where the first screw 160 penetrates the first elongated hole 151 and is screwed with the first support block 130. In this embodiment, the positions of the first pad 150 and the first positioning block 310 along the second direction are conveniently adjusted by the arrangement of the first elongated hole 151 and the first screw connector 160, so as to ensure that the second busbar 20 is inserted into the accommodating groove 11 while the second busbar 20 is placed in close contact with the first positioning block 310.

In one possible embodiment, the first shim plate 150 is provided with at least one elongated aperture, for example two. Illustratively, two first support blocks 130 are provided, each elongated hole is provided with two first screw connectors 160 correspondingly, which can be understood that two first screw connectors 160 penetrate through a corresponding elongated hole and are in threaded connection with two first support blocks 130 in a one-to-one correspondence manner, so that the structural stability between the first backing plate 150 and the first support blocks 130 is effectively ensured.

Specifically, at least one third groove 121 is disposed on the movable plate 120, the third grooves 121 are disposed in one-to-one correspondence with the first support blocks 130, and the first ends of the first support blocks 130 are disposed in the third grooves 121, so as to facilitate positioning and assembling. Further, a fourth groove 152 is disposed on a side of the first pad 150 facing the movable plate 120, and the second ends of all the first supporting blocks 130 are disposed in the fourth groove 152, so as to facilitate positioning and assembling.

In this embodiment, as shown in fig. 2, 6 and 7, a stop bar 311 is disposed at one side of the first positioning block 310 along the third direction, the stop bar 311 is provided with a limiting surface 3111, and the limiting surface 3111 is used for being attached to one side edge of the second busbar 20 along the third direction, so as to realize positioning of the second busbar 20 along the third direction, and facilitate positioning of the second busbar 20 relative to the first busbar 10. The first direction, the second direction and the third direction are perpendicular to each other, and in fig. 2, the c direction is taken as a third direction as an example, and the third direction may be a horizontal direction.

In one possible embodiment, the first pad 150 is provided with a second elongated hole 153, and the second elongated hole 153 is extended in the third direction. Further, the fixing clamp further includes a second screw member 610, and the second screw member 610 penetrates the second elongated hole 153 and is in threaded connection with the first positioning block 310. In this embodiment, the second elongated hole 153 and the second screw member 610 are arranged to facilitate adjusting the position of the first positioning block 310 along the third direction, so as to ensure the positional accuracy of the second busbar 20 along the third direction relative to the first busbar 10.

Illustratively, the second screw 610 is provided with a plurality, e.g., two or three or more, to secure the connection between the first positioning block 310 and the first pad 150.

In one possible embodiment, a first limiting groove 154 is formed in a side edge of the first pad 150 facing the second positioning block 320, and the first positioning block 310 is disposed in the first limiting groove 154, so as to facilitate positioning and assembly. The first limiting groove 154 may have an L-shape.

In this embodiment, referring to fig. 2 and 8, a positioning groove 210 is provided on the positioning seat 200, the positioning groove 210 is used for placing the first busbar 10, an opening is provided on a first side of the positioning groove 210 along the third direction, a first limiting side 211 is provided on a second side of the positioning groove 210 along the third direction, and an edge of one side of the first busbar 10 along the third direction can be attached to the first limiting side 211. In this embodiment, the positioning slot 210 is provided with an opening to facilitate taking and placing the first busbar 10, and the first limiting side 211 is designed to ensure the positional accuracy of the first busbar 10 relative to the positioning seat 200 along the third direction. The first limiting side 211 and the blocking strip 311 are located on the same side of the movable plate 120, so as to further facilitate the taking and placing of the first busbar 10 and the second busbar 20.

Specifically, the movable plate 120 is provided with a fifth groove 122, and the positioning seat 200 is disposed in the fifth groove 122, so as to facilitate positioning and assembling.

Specifically, the two sides of the positioning groove 210 along the second direction are provided with second limiting sides 212, and the second limiting sides 212 are used for being attached to corresponding side edges of the first busbar 10 along the second direction, so as to ensure the position accuracy of the first busbar 10 along the second direction relative to the positioning seat 200.

In one possible embodiment, the positioning seat 200 is provided with a third elongated hole 220 on both sides along the second direction, and the third elongated hole 220 is disposed to extend along the third direction. Further, the fixing clamp further includes a third screw 620, and the third screw 620 is inserted through the third elongated hole 220 and is screwed with the movable plate 120. In the present embodiment, the position of the positioning seat 200 along the third direction is conveniently adjusted by the third elongated hole 220 and the third screw member 620, so as to further ensure the positional accuracy of the second busbar 20 along the third direction relative to the first busbar 10.

Illustratively, each of the third elongated holes 220 corresponds to a plurality of third screw members 620, for example, each of the third elongated holes 220 corresponds to two third screw members 620, so as to ensure a stable connection between the positioning seat 200 and the movable plate 120.

In this embodiment, referring to fig. 2, 6 and 9, the second supporting block 140 is provided with a second pad 170, the second pad 170 extends towards one side edge of the first positioning block 310 along the second direction and is provided with a limiting plate 171, the limiting plate 171 is provided with a second positioning block 320 in a sliding manner, and the limiting plate 171 limits the position of the second positioning block 320 along the first direction, so as to avoid the situation that the second positioning block 320 obliquely pushes against the second busbar 20, that is, effectively prevent the second busbar 20 from scratching and wearing caused by sliding between the second positioning block 320 and the second busbar 20. Of course, the second positioning block 320 may also be connected to the second pad 170 through a sliding rail and sliding block mechanism or other guiding mechanism, so as to ensure the stability of the second positioning block 320 moving along the second direction.

Specifically, the movable plate 120 is provided with a sixth groove 123, and the first end of the second supporting block 140 is disposed in the sixth groove 123, so as to facilitate positioning and assembling. Further, a seventh groove 172 is disposed on a side of the second pad 170 facing the movable plate 120, and the second end of the second supporting block 140 is disposed in the seventh groove 172, so as to facilitate positioning and assembling.

Specifically, the second pad 170 is provided with a second limiting groove 173, and the first driving element 330 is disposed in the second limiting groove 173, so as to facilitate positioning and assembling.

In the present embodiment, referring to fig. 1 and 10, the pre-pressing assembly 400 includes a limiting block 410, a pre-pressing block 420, an elastic member 430 and a second driving member 440. The limiting block 410 is slidably connected with the pre-pressing block 420; the elastic member 430 is disposed between the limiting block 410 and the pre-pressing block 420, and the pre-pressing block 420 has a tendency to slide along the first direction toward the positioning assembly 300 by the elastic member 430; the second driving element 440 is disposed on the support frame 100, the second driving element 440 is connected to the limiting block 410, and the second driving element 440 is configured to drive the limiting block 410 to drive the pre-pressing block 420 to compress the second busbar 20 on the first busbar 10 on the positioning seat 200 along the first direction. In this embodiment, the second driving member 440 drives the limiting block 410 to drive the pre-pressing block 420 to move along the first direction, so that the pre-pressing block 420 abuts against the second busbar 20, so that the second busbar 20 is pressed against the first busbar 10 on the positioning seat 200, and the pre-pressing block 420 generates flexible impact on the second busbar 20 through the design of the elastic member 430, so as to effectively avoid deformation of the second busbar 20 due to the impact. Illustratively, the resilient member 430 is provided with at least one, and specifically, for example, two.

In one possible embodiment, as shown in fig. 1 and 4, the second driver 440 includes a second front gas port 441 and a second rear gas port 442. Specifically, the fixing fixture further includes a second control valve 550, where the second control valve 550 includes a second air inlet 551 and two second air outlets 552, where the second air inlet 551 is disposed in communication with the triplet 510, one of the two second air outlets 552 is disposed in communication with the second front air port 441, and the other of the two second air outlets 552 is disposed in communication with the second rear air port 442. In this embodiment, the air source control system composed of the triple piece 510, the first control valve 520, the first driving piece 330, the second control valve 550 and the second driving piece 440 controls the communication switching between the two second air outlets 552 and the second air inlets 551 through the second control valve 550, so as to realize the setting and resetting actions of the second driving piece 440, and further realize the movement of the limiting block 410 driven by the second driving piece 440, so as to facilitate the control of the second driving piece 440. The second control valve 550 may be a manual valve, for example. For example, the second control valve 550 may be disposed on one of the fixed plates 113 along the second side of the second direction.

The second driving member 440 may be a cylinder, for example, an ultra-thin cylinder, for example, to ensure compactness of the fixing jig structure.

Specifically, the fixing fixture further comprises a three-way joint 560, the three-way joint 560 comprises a first interface, a second interface and a third interface, the first interface is communicated with the two-way joint 540 connected with the triple piece 510, the second interface is communicated with the first air inlet 521 of the first control valve 520, and the third interface is communicated with the second air inlet 551 of the second control valve 550, so that connection is facilitated.

In this embodiment, with continued reference to fig. 1 and 10, the pre-pressing assembly 400 further includes a guide shaft 450 fixedly connected to the limiting block 410, the guide shaft 450 is slidably connected to the support frame 100, and the guide shaft 450 is configured to guide the movement of the limiting block 410 along the first direction, so as to stabilize the movement of the pre-pressing block 420 along the first direction. Specifically, the top plate 112 is provided with a sliding bearing 460, the guide shaft 450 is slidably disposed through the sliding bearing 460, the second driving member 440 is located on a side of the top plate 112 away from the base 111, and the stopper 410 is located on a side of the top plate 112 facing the base 111.

In this embodiment, referring to fig. 1 and 10, the pre-pressing assembly 400 further includes a fixing block 471, a connecting block 472 and a flange block 480, the fixing block 471 is disposed on one side of the limiting block 410 facing the top plate 112, the connecting block 472 is disposed on one side of the fixing block 471 facing the top plate 112, a clamping groove 473 is formed between the connecting block 472 and the fixing block 471, the flange block 480 includes a connecting portion 481 and a limiting portion 482, the cross-sectional area of the limiting portion 482 is larger than that of the connecting portion 481, the connecting portion 481 is in threaded connection with the telescopic rod of the second driving member 440, and the limiting portion 482 is disposed in the clamping groove 473 to realize connection between the second driving member 440 and the limiting block 410. One end of the guide shaft 450 is connected to the fixing block 471.

Illustratively, the specific steps of securing the first busbar 10 and the second busbar 20 to the fixture are: firstly, the first busbar 10 is placed in the positioning groove 210 of the positioning seat 200, and one side edge of the first busbar 10 along the third direction is tightly attached to the first limiting side 211; then, the second busbar 20 is placed between the first positioning block 310 and the second positioning block 320, so that the second busbar 20 is inserted into the accommodating groove 11 of the first busbar 10, and after the second busbar 20 is clung to the first positioning block 310, the first control valve 520 is operated, so that the first driving piece 330 drives the second positioning block 320 to press the second busbar 20 on the first positioning block 310; finally, the second control valve 550 is operated, so that the second driving member 440 drives the limiting block 410 to drive the pre-pressing block 420 to press the second busbar 20 onto the first busbar 10 on the positioning seat 200. Further, after the welding is completed and the first busbar 10 and the second busbar 20 are completely cooled, the second driving member 440 is controlled to be reset through the second control valve 550 in sequence, the first driving member 330 is controlled to be reset through the first control valve 520, and finished products of the welded first busbar 10 and second busbar 20 are taken down on the fixing clamp.

Example two

The present embodiment provides a welding device applied to welding a first busbar 10 and a second busbar 20 of a frame circuit breaker, and the welding device includes a welding assembly (not shown) and the fixing fixture provided in the first embodiment.

Specifically, the welding assembly is disposed at one side of the fixture, and the welding assembly is used for welding the first busbar 10 and the second busbar 20 on the fixture.

In one possible embodiment, the welding assembly includes a welding gun (not shown) by which the first busbar 10 and the second busbar 20 are welded. The welding of the first busbar 10 and the second busbar 20 may be performed by a welding gun held by an operator, or the welding gun may be driven to move by a driving device (not shown) to perform the welding of the first busbar 10 and the second busbar 20. The driving device is not the focus of the present application, and will not be described again here.

In this embodiment, the first busbar 10 and the second busbar 20 are stably abutted together by the fixing fixture, and the relative positions between the first busbar 10 and the second busbar 20 are ensured, so that the first busbar 10 and the second busbar 20 are effectively prevented from deforming when the welding assembly is welded, and the yield of finished products is improved.

It will be appreciated that the connection means not explicitly described herein may be a common connection means such as screw connection, welding or bonding, as desired.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A fixture for welding a first busbar (10) and a second busbar (20) of a frame circuit breaker, characterized in that the fixture comprises:

a support (100);

the positioning seat (200) is arranged on the supporting frame (100), and the positioning seat (200) is used for placing the first busbar (10);

the positioning assembly (300) is arranged on the support frame (100), the positioning assembly (300) is arranged on one side of the positioning seat (200) where the first busbar (10) is arranged along a first direction, the positioning assembly (300) comprises first positioning blocks (310) and second positioning blocks (320) which are arranged at intervals along a second direction, and a first driving piece (330) connected with the second positioning blocks (320), and the first direction and the second direction are mutually perpendicular; wherein,

the first positioning block (310) and the second positioning block (320) are used for placing the second busbar (20), and the second busbar (20) is abutted against the first busbar (10); the first driving piece (330) is used for driving the second positioning block (320) to press the second busbar (20) on the first positioning block (310) along the second direction; and

the pre-pressing assembly (400) is arranged on the supporting frame (100), the pre-pressing assembly (400) is arranged on one side, far away from the positioning seat (200), of the positioning assembly (300) along the first direction, and the pre-pressing assembly (400) is used for pressing the second busbar (20) onto the first busbar (10) on the positioning seat (200) along the first direction.

2. The fixation clamp of claim 1, wherein the support frame (100) comprises:

a support body frame (110), the pre-pressing assembly (400) being provided on the support body frame (110);

the movable plate (120) is detachably connected with the support main body frame (110), and the positioning seat (200) is arranged on the movable plate (120);

a first supporting block (130) arranged on the movable plate (120), wherein the first positioning block (310) is arranged on the first supporting block (130);

the second supporting block (140) is arranged on the movable plate (120), and the first driving piece (330) is arranged on the second supporting block (140).

3. The fixing clamp according to claim 2, wherein a barrier rib (311) is arranged on one side of the first positioning block (310) along the third direction, the barrier rib (311) is provided with a limiting surface (3111), and the limiting surface (3111) is used for being attached to one side edge of the second busbar (20) along the third direction; the first direction, the second direction and the third direction are perpendicular to each other.

4. The fixing clamp according to claim 2, wherein a first backing plate (150) is provided on the first supporting block (130), a first elongated hole (151) is provided on the first backing plate (150), and the first elongated hole (151) is extended along the second direction;

the support frame (100) further comprises a first screw-connection piece (160), and the first screw-connection piece (160) penetrates through the first strip-shaped hole (151) and is in threaded connection with the first support block (130).

5. The fixing clamp according to claim 4, wherein the first backing plate (150) is provided with a second elongated hole (153), the second elongated hole (153) is extended along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;

the fixing clamp further comprises a second screw-connection piece (610), and the second screw-connection piece (610) penetrates through the second strip-shaped hole (153) and is in threaded connection with the first positioning block (310).

6. The fixing clamp according to claim 2, wherein a positioning groove (210) is formed in the positioning seat (200), the positioning groove (210) is used for placing the first busbar (10), an opening is formed in a first side of the positioning groove (210) along a third direction, a first limiting side surface (211) is formed in a second side of the positioning groove (210) along the third direction, and one side edge of the first busbar (10) along the third direction can be attached to the first limiting side surface (211); the first direction, the second direction and the third direction are perpendicular to each other.

7. The fixing clamp according to claim 2, wherein a second backing plate (170) is arranged on the second supporting block (140), a limiting plate (171) is arranged on the second backing plate (170) along the second direction towards one side edge of the first positioning block (310), and the second positioning block (320) is arranged on the limiting plate (171) in a sliding mode.

8. The fixture according to any of the claims 1-7, wherein the pre-compression assembly (400) comprises:

a stopper (410);

a pre-pressing block (420) which is in sliding connection with the limiting block (410);

an elastic member (430) disposed between the stopper (410) and the pre-pressing block (420), the elastic member (430) causing the pre-pressing block (420) to have a tendency to slide toward the positioning assembly (300) along the first direction;

the second driving piece (440) is arranged on the supporting frame (100), the second driving piece (440) is connected with the limiting block (410), and the second driving piece (440) is used for driving the limiting block (410) to drive the pre-pressing block (420) to compress the second busbar (20) on the first busbar (10) on the positioning seat (200) along the first direction.

9. The stationary fixture as claimed in claim 8, characterized in that the first driving member (330) comprises a first front gas port (331) and a first rear gas port (332), and the second driving member (440) comprises a second front gas port (441) and a second rear gas port (442);

the fixing clamp further comprises:

a triplet (510) for communication with an air compression device;

the first control valve (520) comprises a first air inlet (521) and two first air outlets (522), wherein the first air inlet (521) is communicated with the triple piece (510), one of the two first air outlets (522) is communicated with the first front air port (331), and the other of the two first air outlets (522) is communicated with the first rear air port (332);

the second control valve (550) comprises a second air inlet (551) and two second air outlets (552), wherein the second air inlet (551) is communicated with the triple piece (510), one of the two second air outlets (552) is communicated with the second front air outlet (441), and the other of the two second air outlets (552) is communicated with the second rear air outlet (442).

10. A welding device, comprising:

the fixation clamp of any one of claims 1-9; and

the welding assembly is arranged on one side of the fixing clamp and is used for welding the first busbar (10) and the second busbar (20) on the fixing clamp.