Welding device

Abstract

The present application relates to the technical field of circuit breaker processing, and discloses a welding device, which comprises a workbench, a clamp, a first positioning mechanism, a driving mechanism, a first electrode and a second electrode. The clamp is detachably arranged on the workbench and used for carrying and limiting the contact and the support in a first direction; the driving mechanism is arranged on the workbench and used for driving the clamp to move along a second direction so that the lap joint part of the contact and the support moves to a processing position on the workbench or moves away from the processing position; the first positioning mechanism is arranged on the workbench, and when the lap joint part is located at the processing position, the first positioning mechanism is used for limiting the contact and the support in a third direction and limiting the contact and the support in the second direction in cooperation with the clamp; the first electrode and the second electrode are arranged on opposite sides of the processing position along the third direction, and the first electrode and the second electrode can relatively approach to compress the lap joint part and weld the contact to the support. The welding device can realize automatic welding of the support and the contact, and improves the processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker manufacturing technology, and more particularly to a welding apparatus. Background Technology

[0002] The coil assembly of a circuit breaker generally consists of parts such as contacts, brackets, coils, terminal blocks, coil frames, and iron cores. The contacts in the coil assembly serve to connect current and voltage. The contacts are generally welded to the brackets. When the coil assembly is installed into the housing, the bracket is the only part that contacts the housing. It serves to fix the entire coil assembly. Therefore, whether the dimensions of the assembly after the bracket and contacts are welded are standard will directly affect the tripping capability of the entire circuit breaker under current and voltage overload.

[0003] Traditional welding of the support and contact is done manually. The worker places the support and contact into a welding fixture, then places the fixture between the upper and lower electrodes of a hot-melt welding machine, and finally starts the machine to heat up and weld. This manual operation has the following drawbacks:

[0004] (1) After manually placing the bracket and the contact into the welding fixture, the contact tightening bolt needs to be tightened to fix the contact. After welding is completed, the contact tightening bolt needs to be loosened before the contact and bracket assembly can be removed. The efficiency of installation and disassembly is low.

[0005] (2) Since the welding fixture is placed between the upper and lower electrodes manually, the accuracy of the welding point cannot be guaranteed each time during welding, resulting in inconsistent processing quality. There is also a risk of arcing between the upper and lower electrodes due to contact with parts other than the welding point, resulting in poor welding quality.

[0006] Therefore, there is an urgent need to develop a welding device to solve the above problems. Summary of the Invention

[0007] This invention provides a welding device that can automatically weld supports and contacts, improving processing efficiency, reducing the labor intensity of workers, and ensuring high consistency in processing quality, thus improving welding quality.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A welding apparatus is used for welding contacts and supports of a circuit breaker, the welding apparatus comprising:

[0010] A workbench, wherein a processing station is provided on the workbench;

[0011] A clamp is detachably mounted on the worktable, and the clamp is used to support and limit the contact and the bracket in a first direction.

[0012] A drive mechanism, disposed on the worktable, is used to drive the fixture to move along the second direction so that the overlapping part of the contact and the bracket moves to or away from the processing position;

[0013] A first positioning mechanism is disposed on the worktable. When the overlapping part is located at the processing position, the first positioning mechanism is used to limit the contact and the bracket in a third direction and cooperate with the fixture to limit the contact and the bracket in a second direction.

[0014] The first electrode and the second electrode are disposed on opposite sides of the processing position along the third direction, and the first electrode and the second electrode can be brought close to each other to press the overlapping portion at the processing position and weld the contact to the bracket;

[0015] Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

[0016] Optionally, the clamp includes:

[0017] The clamp body has a limiting mounting cavity for accommodating the contact and the bracket, and the limiting mounting cavity limits the contact and the bracket in the first direction;

[0018] The top core is slidably disposed on the fixture body along the first direction. The top core is provided with a limiting post, which is connected to the contact and presses the contact point of the contact against the side wall of the limiting mounting cavity in the first direction.

[0019] A limiting core is detachably connected to the clamp body and the top core, and the limiting core is used to limit the displacement of the top core along the first direction.

[0020] Optionally, the limiting mounting cavity includes a communicating contact mounting space and a bracket mounting space. The limiting post moves in the first direction to press the contact point of the contact against the side wall of the contact mounting space. The two ends of the bracket abut against the two opposite side walls of the bracket mounting space along the first direction.

[0021] Optionally, the clamp body includes a limiting body and a rear cover detachably connected to the limiting body. The limiting mounting cavity is located on the side of the limiting body away from the rear cover. The limiting body is provided with a sliding groove extending along the first direction on the side near the rear cover. The bottom of the sliding groove is provided with a guide hole communicating with the limiting mounting cavity. The top core is slidably disposed in the sliding groove, and the limiting post passes through the guide hole. The limiting core passes through the limiting body, the top core, and the rear cover in sequence, and the inner diameter of the connecting hole is larger than the outer diameter of the limiting core.

[0022] Optionally, the top core is provided with a connecting hole, and the limiting core is sequentially inserted through the limiting body, the connecting hole and the back cover, and the inner diameter of the connecting hole is larger than the outer diameter of the limiting core.

[0023] Optionally, the first positioning mechanism includes:

[0024] A first support frame is mounted on the workbench;

[0025] A limiting plate is provided on the first support frame, and the limiting plate is provided with two positioning cores; when the fixture is located at the processing position, the two positioning cores clamp the contact and the bracket along the third direction, and after the limiting plate and the fixture are engaged, the limiting plate and the fixture respectively abut against the opposite side walls of the contact and the bracket along the second direction, so as to limit the contact and the bracket in the second direction.

[0026] Optionally, the limiting plate is floatingly connected to the first support frame along the third direction, and the clamp is floatingly disposed on the worktable along the third direction.

[0027] Optionally, the limiting plate is floatingly connected to the first support frame along the third direction via a first motion adjustment mechanism, the first motion adjustment mechanism comprising:

[0028] A first guide plate is disposed on the first support frame, and the first guide plate is provided with a first guide groove extending along the third direction;

[0029] A first guide plate is slidably connected to the first guide groove, and the first guide plate is used to install the limiting plate.

[0030] Two first limiting blocks are both disposed on the first guide plate, and the two first limiting blocks are respectively disposed on both sides of the first guide plate along the third direction;

[0031] The first elastic element is provided between at least one of the first limiting blocks and the first guide plate.

[0032] Optionally, the drive mechanism includes:

[0033] The second positioning mechanism includes a second support frame that is slidably disposed on the worktable along the second direction and a fixed seat disposed on the second support frame. The clamp is mounted on the fixed seat, and the fixed seat includes a support wall.

[0034] A clamping mechanism includes a clamping head that extends and retracts along the first direction, the clamping head being able to contact the clamp and fix the clamp between the clamping head and the bearing wall;

[0035] A driving component, disposed on the worktable, is used to drive the second positioning mechanism and the clamping mechanism to move synchronously along the second direction to or away from the machining position.

[0036] Optionally, the welding apparatus further includes a slide mechanism, the slide mechanism comprising:

[0037] The base plate is set on the workbench;

[0038] A slide rail is provided on the base plate, and the slide rail extends along the third direction;

[0039] A slide table is slidably connected to the slide rail, and the slide table is used to mount the second support frame.

[0040] Optionally, the welding device further includes a detection mechanism disposed on the workbench, the detection mechanism being used to detect whether there are foreign objects between the first positioning mechanism and the fixture.

[0041] The beneficial effects of this invention are as follows:

[0042] This invention provides a welding apparatus, including a worktable, a fixture, a first positioning mechanism, a driving mechanism, a first electrode, and a second electrode. After the circuit breaker contacts are overlapped with a support, they are assembled into the fixture. Driven by the driving mechanism, the fixture engages with the first positioning mechanism. At this point, the fixture and the first positioning mechanism can limit the contact and support in a first, second, and third direction. After the contact and support are fixed, the first and second electrodes are activated, pressing the overlapped portion of the contact and support together and welding the contact to the support, thus completing the assembly of the contact and support. This welding apparatus enables automatic welding of contacts and supports, improving processing efficiency and reducing the labor intensity of workers compared to manual operation; it also eliminates human interference, improving the consistency of processing quality and thus improving the welding quality. Attached Figure Description

[0043] Figure 1 An exploded view of the contact and support provided in an embodiment of the present invention;

[0044] Figure 2 This is an assembly diagram of the contact and the bracket provided in an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the welding apparatus provided in an embodiment of the present invention. Figure 1 ;

[0046] Figure 4 An assembly drawing of the clamp, contact, and bracket provided in an embodiment of the present invention;

[0047] Figure 5 An exploded view of the fixture provided in an embodiment of the present invention;

[0048] Figure 6 This is a schematic diagram of the structure of the fixture body provided in an embodiment of the present invention;

[0049] Figure 7 An assembly drawing of the worktable and the first positioning mechanism provided for an embodiment of the present invention;

[0050] Figure 8 An assembly diagram of the first motion adjustment mechanism and the first support frame provided in an embodiment of the present invention;

[0051] Figure 9 A schematic diagram of the welding apparatus provided in an embodiment of the present invention. Figure 2 (The first positioning mechanism is not shown);

[0052] Figure 10 A schematic diagram of the welding apparatus provided in an embodiment of the present invention. Figure 3 (The first positioning mechanism and fixture are not shown);

[0053] Figure 11 This is an assembly diagram of the second motion adjustment mechanism and the second support frame provided in an embodiment of the present invention;

[0054] Figure 12 This is a schematic diagram of the slide, second support frame, third support frame and fourth support frame provided in the embodiments of the present invention.

[0055] In the picture:

[0056] 10. Contact; 11. Limiting hole; 20. Bracket; 30. Overlapping part;

[0057] 100. Workbench; 110. Hook;

[0058] 200. Fixture; 210. Fixture body; 211. Limiting body; 2111. Limiting mounting cavity; 21111. Contact mounting space; 21112. Bracket mounting space; 2112. Slide groove; 21121. Guide hole; 2113. First mounting hole; 212. Rear cover; 2121. Second mounting hole; 220. Top core; 221. Limiting post; 222. Connecting hole; 230. Limiting core;

[0059] 300, First positioning mechanism; 310, First support frame; 320, Limiting plate; 321, Positioning core; 330, First motion adjustment mechanism; 331, First guide plate; 332, First guide back plate; 333, First limiting block; 334, First elastic element;

[0060] 400. Drive mechanism; 410. Second positioning mechanism; 411. Second support frame; 412. Fixed seat; 4121. Support wall; 413. Second motion adjustment mechanism; 4131. Second guide plate; 4132. Second guide back plate; 4133. Second limit block; 4134. Second elastic element; 420. Drive component; 421. Floating joint; 430. Tightening mechanism; 431. Tightening head; 432. Third support frame;

[0061] 500, First electrode;

[0062] 600, Second electrode;

[0063] 700. Slide mechanism; 710. Base plate; 720. Slide rail; 730. Slide table;

[0064] 800. Testing agency; 810. Fourth support frame. Detailed Implementation

[0065] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0069] This embodiment provides a welding device that can automatically weld the support 20 and the contact 10, improving processing efficiency, reducing the labor intensity of workers, and achieving high consistency in processing quality, thus improving welding quality.

[0070] like Figure 1 and Figure 2 As shown, the contact 10 and the bracket 20 are usually pre-assembled manually, typically by overlapping, which means that the parts of the contact 10 and the bracket 20 that need to be welded are overlapped together to form an overlap 30. Furthermore, the bracket 20 can limit the position of the contact 10 to ensure that the weld points on the overlap 30 correspond.

[0071] like Figures 3-5 As shown, the welding apparatus includes a worktable 100, a fixture 200, a first positioning mechanism 300, a drive mechanism 400, a first electrode 500, and a second electrode 600. Both the first positioning mechanism 300 and the drive mechanism 400 are mounted on the worktable 100. The fixture 200 is detachably connected to the worktable 100 and is used to support and limit the contact 10 and the support 20 in a first direction. The drive mechanism 400 drives the fixture 200 to move in a second direction, causing the fixture 200 to move the overlapping portion 30 of the contact 10 and the support 20 to or away from the processing position on the worktable 100. When the overlapping portion 30 is in the processing position, the first positioning mechanism 300 can limit the contact 10 and the support 20 in a third direction, and the first positioning mechanism 300, in cooperation with the fixture 200, can limit the contact 10 and the support 20 in the second direction, thus fixing the contact 10 and the support 20. Wherein, the first direction, the second direction, and the third direction are perpendicular to each other, as in this embodiment, such as Figure 1As shown, the first direction is the X-axis, the second direction is the Y-axis, and the third direction is the Z-axis. The fixture 200 and the first positioning mechanism 300 enable positioning of the contact 10 and the support 20 in six directions, resulting in excellent fixation. This significantly reduces the risk of displacement of the contact 10 and the support 20 during welding and improves the consistency of welding quality between the contact 10 and the support 20.

[0072] It is understood that the processing position refers to the location where the contact 10 and the overlapping portion 30 of the support 20 are welded together. The first electrode 500 and the second electrode 600 are disposed on opposite sides of the processing position along a third direction. When the overlapping portion 30 moves to the processing position, the first electrode 500 and the second electrode 600 are respectively located on opposite sides of the overlapping portion 30 along a third direction. The first electrode 500 and the second electrode 600 can approach each other to press the overlapping portion 30 located at the processing position and weld the overlapping portion 30 together, that is, weld the contact 10 to the support 20.

[0073] The welding apparatus provided in this embodiment can automatically weld the support 20 and the contact 10, improving processing efficiency and reducing the labor intensity of workers. During welding, the contact 10 and the support 20 are directly assembled and placed into the fixture 200. Then, the drive mechanism 400 drives the fixture 200 to move to the processing position, so that the fixture 200 cooperates with the first positioning mechanism 300 to fix the contact 10 and the support 20. The drive mechanism 400 transports the contact 10 and the fixture 200 between the first electrode 500 and the second electrode 600, ensuring that the transport position is the same each time, thus ensuring the accuracy of the welding point, improving the uniformity of heat fusion, and thus improving the consistency of processing quality. It also avoids the sparking phenomenon caused by workers accidentally touching the first electrode 500 and the second electrode 600, thereby improving the welding quality.

[0074] Optionally, such as Figure 1 , Figures 4-6As shown, the fixture 200 includes a fixture body 210, a top core 220, and a limiting core 230. The fixture body 210 has a limiting mounting cavity 2111. The top core 220 is slidably disposed on the fixture body 210 along a first direction. The top core 220 has a limiting post 221 for connecting to the contact 10. Moving the top core 220 along the first direction allows the limiting post 221 to move the contact 10, causing the contact point on the contact 10 to press against the side wall of the limiting mounting cavity 211. That is, the limiting post 221 and the side wall of the limiting mounting cavity 211 can clamp and fix the contact 10 within the limiting mounting cavity 211, preventing displacement of the contact 10 during welding and improving welding quality. The limiting core 230 is detachably connected to the clamp body 210 and the top core 220. The limiting core 230 is used to limit the displacement of the top core 220 along the first direction, thereby limiting the travel of the limiting post 221. The clamp 200 has a simple structure and high reliability in limiting the contact 10 and the bracket 20. The limiting core 230 can be, but is not limited to, a columnar structure.

[0075] The clamp 200 provided in this embodiment has a simpler and better fixing method for fixing the contact 10 and the bracket 20. Compared with the prior art, which fixes the contact 10 and the bracket 20 by tightening the contact with a bolt, the installation and disassembly of the contact 10 and the bracket 20 is also simpler, which improves the installation and disassembly efficiency of the contact 10 and the bracket 20.

[0076] Optionally, in this embodiment, the limiting mounting cavity 2111 includes a communicating contact mounting space 21111 and a bracket mounting space 21112. The contact mounting space 21111 is used to mount the contact 10, and the bracket mounting space 21112 is used to mount the bracket 20.

[0077] In this embodiment, one end of the contact 10 is bent inward to form a limiting hole 11, and a limiting post 221 passes through the limiting hole 11. The limiting post 221 moves in the first direction to press the contact point of the contact 10 against the side wall of the contact mounting space 21111, thereby fixing the contact 10. The two ends of the bracket 20 respectively abut against the two opposite side walls of the bracket mounting space 21112 along the first direction, thereby fixing the bracket 20.

[0078] Further, see also Figures 4-6 The fixture body 210 includes a limiting body 211 and a rear cover 212. The rear cover 212 is detachably connected to the limiting body 211. Specifically, in this embodiment, the rear cover 212 is snapped onto the limiting body 211. The snapping structure is relatively simple and the installation and disassembly are relatively convenient.

[0079] The limiting mounting cavity 2111 is located on the side of the limiting body 211 away from the rear cover 212. The side of the limiting body 211 closest to the rear cover 212 has a sliding groove 2112 extending in a first direction. The bottom of the sliding groove 2112 has a guide hole 21121 communicating with the limiting mounting cavity 2111. The limiting post 221 passes through the guide hole 21121. The top core 220 is slidably disposed in the sliding groove 2112. By moving the top core 220, the limiting post 221 on the top core 220 can move within the limiting mounting cavity 2111. The top core 220 has a connecting hole 222. The limiting core 230 passes sequentially through the limiting body 211, the connecting hole 222, and the rear cover 212. In this embodiment, the limiting body 211 is provided with a first mounting hole 2113, and the rear cover 212 is provided with a second mounting hole 2121. The limiting core 230 is sequentially inserted through the first mounting hole 2113, the connecting hole 222, and the second mounting hole 2121. Further, the inner diameter of the connecting hole 222 is larger than the outer diameter of the limiting core 230. By setting the inner diameter of the connecting hole 222 to be larger than the outer diameter of the limiting core 230, the top core 220 can move along a first direction. The movement of the top core 220 along the first direction allows the limiting post 221 on the top core 220 to move along the first direction. The movement of the limiting post 221 along the first direction allows the contact point of the contact 10 to press against the side wall of the limiting mounting cavity 211. The size of the inner diameter of the connecting hole 222 can be set according to the required stroke of the top core 220. In one possible implementation, the connecting hole 222 is an oblong hole extending along the first direction.

[0080] See also Figure 5 and Figure 6 In this embodiment, a guide hole 21121 is provided at the part of the slide groove 2112 opposite to the contact mounting space 21111, that is, the bottom of the slide groove 2112 is connected to the contact mounting space 21111 through the guide hole 21121.

[0081] See also Figure 5 In this embodiment, the assembly process of the fixture 200 is as follows:

[0082] First, the limiting post 221 of the top core 220 is passed through the guide hole 21121, and the top core 220 is installed in the slide groove 2112; then, the rear cover 212 is snapped into the limiting body 211, and the top core 220 is moved so that the first mounting hole 2113 on the limiting body 211, the connecting hole 222 on the top core 220 and the second mounting hole 2121 on the rear cover 212 are aligned; finally, the limiting core 230 is sequentially passed through the first mounting hole 2113, the connecting hole 222 and the second mounting hole 2121.

[0083] Furthermore, such as Figure 3 and Figure 7As shown, the first positioning mechanism 300 includes a first support frame 310 and a limiting plate 320. The first support frame 310 is mounted on the worktable 100 and serves to support the entire first positioning mechanism 300. The limiting plate 320 is mounted on the first support frame 310 and has two positioning cores 321. The two positioning cores 321 can clamp the contact 10 and the bracket 20 in a third direction, and the limiting plate 320 can be engaged with the fixture 200 to limit the contact 10 and the bracket 20 in a second direction. When the limiting plate 320 is engaged with the fixture 200, the limiting plate 320 abuts against the side walls of both the contact 10 and the bracket 20.

[0084] Specifically, two positioning cores 321 are spaced apart along a third direction. When the limiting plate 320 is engaged with the clamp 200, the overlapping portion 30 of the contact 10 and the bracket 20 is inserted between the two positioning cores 321. This first positioning mechanism 300 has a simple structure and a good limiting effect.

[0085] It is worth noting that if the product has a protrusion at the joint 30 between the contact 10 and the bracket 20, the side wall of the bracket 20 can be inserted between the two positioning cores 321, and the contact 10 can rest on the lower positioning core 321, thus avoiding poor welding caused by squeezing the protrusion before welding.

[0086] Optionally, see [link to relevant documentation] Figure 7 The structure of the limiting plate 320 should be adapted to the structure of the fixture 200. In this embodiment, the limiting plate 320 is L-shaped. In other embodiments, the structure of the limiting plate 320 can also be set to other structures, such as a flat plate structure, as needed. This application does not impose any specific limitations.

[0087] Optionally, in this embodiment, the first support frame 310 includes a horizontal connecting part and a vertical connecting part. The horizontal connecting part is connected to the worktable 100, and the vertical connecting part is connected to the limiting plate 320. The horizontal connecting part can be connected to the worktable 100 by bolts or by welding, depending on actual needs. This application does not impose any specific limitations.

[0088] Since the position of the second electrode 600 is generally fixed during actual welding, the limiting plate 320 can be floatingly connected to the first support frame along a third direction, and the clamp 200 is floatingly mounted on the worktable along a third direction. This arrangement allows the first electrode 500 to contact the overlapping portion 30 between the contact 10 and the support 20, thus moving the overlapping portion 30 and pressing the first electrode 500 and the second electrode 600 together, welding them together. The above welding device is applicable to various movement conditions of the first electrode 500 and the second electrode 600, such as the first electrode 500 being stationary while the second electrode 600 moves towards it, the second electrode 600 being stationary while the first electrode 500 moves towards it, or the first electrode 500 and the second electrode 600 moving relative to each other simultaneously, improving the welding flexibility and reliability of the above welding device.

[0089] Optionally, such as Figure 8 As shown, the limiting plate 320 can be floatingly connected to the first support frame 310 along a third direction via the first motion adjustment mechanism 330. The first motion adjustment mechanism 330 includes a first guide plate 331, a first guide back plate 332, two first limiting blocks 333, and a first elastic element 334. The first guide plate 331 is disposed on the first support frame 310 and has a first guide groove extending along a third direction. The first guide back plate 332 is slidably connected to the first guide groove and is used to mount the limiting plate 320. The first limiting blocks 333 are used to limit the displacement of the first guide back plate 332 along a third direction. Specifically, both first limiting blocks 333 are disposed on the first guide plate 331, and are respectively disposed on both sides of the first guide back plate 332 along a third direction. At least one first limiting block 333 is provided with a first elastic element 334 between it and the first guide plate 331. The first motion adjustment mechanism 330 has a relatively simple structure, and by setting the first elastic element 334, it can buffer the movement of the first guide plate 332, thereby making the movement of the limiting plate 320 more stable. The first elastic element 334 can be, but is not limited to, a spring, as springs have better buffering performance.

[0090] For example, in this embodiment, the second electrode 600 is fixed, and the first electrode 500 moves toward the second electrode 600. Therefore, the first elastic member 334 can be disposed between the first guide plate 332 and the first limiting block 333 near the second electrode 600. During the process of the first electrode 500 contacting the overlap portion 30 of the contact 10 and the bracket 20 and pushing the overlap portion 30 toward the second electrode 600, the overlap portion 30 drives the first guide plate 332 to move toward the second electrode 600 through the positioning core 321 and the limiting plate 320, compressing the first elastic member 334.

[0091] Furthermore, such as Figure 3 , Figure 9 and Figure 10 As shown, the drive mechanism 400 includes a second positioning mechanism 410, a clamping mechanism 430, and a drive member 420.

[0092] The second positioning mechanism 410 is used to fix the fixture 200. The second positioning mechanism 410 includes a second support frame 411 slidably mounted on the worktable along a second direction and a fixing seat 412 mounted on the second support frame 411. The fixing seat 412 is used to mount the fixture 200 and includes a bearing wall 4121. The clamping mechanism 430 includes a retractable clamping head 431, which can contact the fixture 200 and fix the fixture 200 between the clamping head 431 and the bearing wall 4121. The driving member 420 is mounted on the worktable 100 and is used to drive the second positioning mechanism 410 and the clamping mechanism 430 to move synchronously along the second direction to or away from the processing position.

[0093] The clamping mechanism 430 and the bearing wall 4121 of the fixed seat 412 work together to fix the clamp 200. This simple operation provides excellent fixation of the clamp 200, effectively reducing the risk of displacement during transport and welding. It also improves the consistency of the welding position between the contact 10 and the bracket 20, enhances the uniformity of heat fusion, and ultimately improves welding quality. By using a driving component 420 to drive the clamping mechanism 430 and the second positioning mechanism 410 synchronously, the clamping head 431 of the clamping mechanism 430 reliably presses the clamp 200 against the bearing wall 4121. This fully utilizes the function of the driving component 420, eliminating the need for an additional mechanism to drive the clamping mechanism 430 synchronously with the second positioning mechanism 410, thus saving costs. The clamping mechanism 430 can be, but is not limited to, a cylinder.

[0094] It is worth noting that in this embodiment, the tightening head 430 tightens the side wall of the limiting body 211. During the process of the tightening head 430 tightening the limiting body 211, since the core 220 and the limiting body 211 are slidably connected, the limiting body 211 and the core 220 will move relative to each other. During this process, the limiting post 221 can drive the contact 10 to move, so that the contact point on the contact 10 presses against the side wall of the contact mounting space 21111.

[0095] By setting the second support frame 411 to slide in connection with the worktable 100, the stability of the movement of the second support frame 411 can be improved, thereby improving the stability of the movement of the fixture 200, avoiding uncontrollable collisions between the fixture 200 and the first positioning mechanism 300 and thus protecting the fixture 200.

[0096] In this embodiment, the fixed base 412 is floatingly connected to the second support frame 411 along a third direction, and the clamp 200 is mounted on the fixed base 412, thereby realizing that the clamp 200 is floatingly connected to the worktable 100 along a third direction.

[0097] Specifically, the fixed base 412 is floatingly connected to the second support frame 411 via the second motion adjustment mechanism 413. The structure of the second motion adjustment mechanism 413 can be the same as that of the first motion adjustment mechanism 330, which helps reduce R&D costs and facilitates production. Figure 11 As shown, the second motion adjustment mechanism 413 includes a second guide plate 4131, a second guide back plate 4132, two second limiting blocks 4133, and a second elastic element 4134. The second guide plate 4131 is mounted on the second support frame 411 and has a second guide groove extending in a third direction. The second guide back plate 4132 is slidably connected to the second guide groove and is used to mount the fixing seat 412. The second limiting blocks 4133 are used to limit the displacement of the second guide back plate 4132 in a third direction. Specifically, both second limiting blocks 4133 are mounted on the second guide plate 4131, and are respectively positioned on both sides of the second guide back plate 4132 in a third direction. At least one second limiting block 4133 is connected to the second guide plate 4131 by a second elastic element 4134. This second motion adjustment mechanism 413 has a relatively simple structure and good buffering performance.

[0098] Optionally, such as Figure 12 As shown, the clamping mechanism 430 can be fixedly connected to the second guide plate 4131 via the third support frame 432. Since the movement direction of the clamping head 431 of the clamping mechanism 430 is perpendicular to the movement direction of the second guide plate 4131 in this embodiment, the third support frame 431 is perpendicular to the second guide plate 4131.

[0099] Furthermore, the aforementioned welding apparatus also includes a sliding table mechanism 700, which is used to enable the second support frame 411 to slide along a second direction on the worktable 100. Specifically, the sliding table mechanism 700 includes a base plate 710, a slide rail 720, and a sliding table 730. The base plate 710 is mounted on the worktable 100 and supports the entire sliding table mechanism 700. The slide rail 720 is mounted on the base plate 710 and extends along the second direction. The sliding table 730 is slidably connected to the slide rail 720, and the second support frame 411 is mounted on the sliding table 730. This sliding table mechanism 700 has a simple structure and can improve the stability and smoothness of the movement of the second support frame 411.

[0100] Optionally, see [link to relevant documentation] Figure 9 and Figure 10Multiple slide rails 720 can be set, and these slide rails 720 can be set at intervals. By setting multiple slide rails 720, the uniformity of force on the slide table 730 can be improved, thereby improving the smoothness and stability of the slide table 730's sliding, so as to ensure the smoothness and stability of the movement of the second support frame 411.

[0101] Optionally, see [link to relevant documentation] Figure 9 and Figure 10 In this embodiment, the driving component 420 is, for example, a cylinder. A hook 110 is provided on the worktable 100. The fixed end of the cylinder is connected to the second support frame 411, and the output end of the cylinder is provided with a floating connector 421, which is floatingly connected to the hook 110. By setting the floating connector 421, the reliability of the cylinder driving the second support frame 411 to move in the second direction can be ensured. In other embodiments, the driving component 420 can also be a linear motor, a lead screw and nut structure, or other mechanism capable of outputting linear motion. It can be set according to actual needs, and this application does not impose specific limitations.

[0102] Further, see also Figure 1 , Figure 9 and Figure 10 The welding apparatus further includes a detection mechanism 800, which is mounted on the worktable 100. The detection mechanism 800 is used to detect whether there are foreign objects between the first positioning mechanism 300 and the fixture 200. The detection mechanism 800 may be, but is not limited to, a photoelectric switch. The photoelectric switch can emit a light beam to detect whether there are foreign objects between the first positioning mechanism 300 and the fixture 200.

[0103] Before welding begins, the detection mechanism 800 is opened to detect the space between the first positioning mechanism 300 and the fixture 200, that is, to detect the active area of ​​the welding device. The welding program is started only when no foreign objects are detected, which helps to improve the safety of the welding device.

[0104] Optionally, see [link to relevant documentation] Figure 12 In this embodiment, the detection mechanism 800 is fixed to the third support frame 432 by the fourth support frame 810. This arrangement not only reliably fixes the detection mechanism 800 but also improves the structural compactness of the welding device.

[0105] 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 of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A welding apparatus, characterized in that, The welding device is used for welding the contacts (10) and the bracket (20) of a circuit breaker, and includes: A workbench (100) is provided with a processing station; A clamp (200) is detachably mounted on the worktable (100). The clamp (200) is used to carry and limit the contact (10) and the bracket (20) in a first direction. A driving mechanism (400), disposed on the worktable (100), is used to drive the fixture (200) to move along a second direction, causing the contact (10) and the overlapping portion (30) of the support (20) to move to or away from the processing position. The driving mechanism (400) includes a second positioning mechanism (410), a clamping mechanism (430), and a driving member (420). The second positioning mechanism (410) includes a second support frame (411) slidably disposed on the worktable along the second direction, and a fixed seat (412) floatingly connected to the second support frame (411) along a third direction via a second motion adjustment mechanism (413). The fixed seat (412) is used to mount the fixture (200). The second motion adjustment mechanism (413) includes a second guide plate (4131), disposed on the second support frame (100). 411), the second guide plate (4131) is provided with a second guide groove extending along the third direction; a second guide plate (4132), the second guide plate (4132) is slidably connected to the second guide groove, the second guide plate (4132) is used to install the fixed seat (412); two second limiting blocks (4133), used to limit the displacement of the second guide plate (4132) along the third direction, both second limiting blocks (4133) are provided on the second guide plate (4132), and the two second limiting blocks (4133) are respectively provided on both sides of the second guide plate (4132) along the third direction; a second elastic member (4134), at least one second limiting block (4133) is provided between the second guide plate (4132) and the second guide plate (4132). The first positioning mechanism (300) includes a first support frame (310) and a limiting plate (320). The first support frame (310) is disposed on the worktable (100). The limiting plate (320) is floatingly connected to the first support frame (310) along the third direction via a first motion adjustment mechanism (330). The first motion adjustment mechanism (330) includes: a first guide plate (331) disposed on the first support frame (310), the first guide plate (331) having a first guide groove extending along the third direction; and a first guide back plate (332) slidably connected to the first guide groove, the first guide back plate (332) being used for mounting. The limiting plate (320); two first limiting blocks (333), both disposed on the first guide plate (331), and the two first limiting blocks (333) are respectively disposed on both sides of the first guide plate (332) along the third direction; a first elastic member (334), at least one of the first limiting blocks (333) and the first guide plate (331) are provided with the first elastic member (334); when the overlapping part (30) is located at the processing position, the first positioning mechanism (300) is used to limit the contact (10) and the bracket (20) in the third direction, and cooperate with the clamp (200) to limit the contact (10) and the bracket (20) in the second direction; The first electrode (500) and the second electrode (600) are disposed on opposite sides of the processing position along the third direction, and the first electrode (500) and the second electrode (600) can be brought close to each other so that the first electrode (500) or the second electrode (600) can contact the overlapping part (30) at the processing position and drive the overlapping part (30) to move, so that the first electrode (500) and the second electrode (600) press the overlapping part (30) at the processing position and weld the contact (10) to the bracket (20); Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

2. The welding apparatus according to claim 1, characterized in that, The clamp (200) includes: The clamp body (210) is provided with a limiting mounting cavity (2111), which is used to accommodate the contact (10) and the bracket (20). The limiting mounting cavity (2111) limits the contact (10) and the bracket (20) in the first direction. The top core (220) is slidably disposed on the fixture body (210) along the first direction. The top core (220) is provided with a limiting post (221). The limiting post (221) is connected to the contact (10) and presses the contact point of the contact (10) against the side wall of the limiting mounting cavity (211) in the first direction. A limiting core (230) is detachably connected to the clamp body (210) and the top core (220), and the limiting core (230) is used to limit the displacement of the top core (220) along the first direction.

3. The welding apparatus according to claim 2, characterized in that, The limiting mounting cavity (2111) includes a connected contact mounting space (21111) and a bracket mounting space (21112). The limiting post (221) moves in the first direction to press the contact point of the contact (10) against the side wall of the contact mounting space (21111). The two ends of the bracket (20) respectively abut against the two opposite side walls of the bracket mounting space (21112) along the first direction.

4. The welding apparatus according to claim 2, characterized in that, The clamp body (210) includes a limiting body (211) and a rear cover (212) detachably connected to the limiting body (211). The limiting mounting cavity (2111) is located on the side of the limiting body (211) away from the rear cover (212). The limiting body (211) is provided with a sliding groove (2112) extending along the first direction on the side of the limiting body (211) close to the rear cover (212). The bottom of the sliding groove (2112) is provided with a guide hole (21121) communicating with the limiting mounting cavity (2111). The top core (220) is slidably disposed in the sliding groove (2112), and the limiting post (221) passes through the guide hole (21121). The limiting core (230) passes through the limiting body (211), the top core (220), and the rear cover (212) in sequence.

5. The welding apparatus according to claim 4, characterized in that, The top core (220) is provided with a connecting hole (222), and the limiting core (230) is sequentially inserted through the limiting body (211), the connecting hole (222) and the back cover (212), and the inner diameter of the connecting hole (222) is larger than the outer diameter of the limiting core (230).

6. The welding apparatus according to claim 1, characterized in that, The limiting plate (320) is provided with two positioning cores (321); when the fixture (200) is located at the processing position, the two positioning cores (321) clamp the contact (10) and the bracket (20) along the third direction, and after the limiting plate (320) and the fixture (200) are engaged, the limiting plate (320) and the fixture (200) respectively abut against the opposite side walls of the contact (10) and the bracket (20) along the second direction, so as to limit the contact (10) and the bracket (20) in the second direction.

7. The welding apparatus according to claim 1, characterized in that, The fixed base (412) includes a support wall (4121); the clamping mechanism (430) includes a clamping head (431) that extends and retracts along the first direction, the clamping head (431) being able to contact the clamp (200) and fix the clamp (200) between the clamping head (431) and the support wall (4121); The driving component (420) is disposed on the worktable (100), and the driving component (420) is used to drive the second positioning mechanism (410) and the clamping mechanism (430) to move synchronously along the second direction to the processing position or away from the processing position.

8. The welding apparatus according to claim 7, characterized in that, The welding apparatus further includes a slide mechanism (700), which comprises: A base plate (710) is provided on the workbench (100); A slide rail (720) is disposed on the base plate (710), and the slide rail (720) extends along the second direction; A slide table (730) is slidably connected to the slide rail (720), and the slide table (730) is used to mount the second support frame (411).

Images