Welding device and welding method for static contact

Abstract

The present invention relates to the field of automatic assembly and welding technology, and specifically discloses a welding device and a welding method for a static contact. The welding device and the welding method for a static contact provided by the present invention can realize automatic loading of a static contact piece, flux and a static contact point, and the clamping tooling for carrying the static contact piece and the static contact point switches to different workstations as the turntable rotates. The turntable has good rotation stability, replacing the manual transfer of the clamping tooling; the static contact piece and the static contact point can be fixed during the rotation of the turntable, avoiding displacement of the static contact piece or the static contact point and affecting the quality of the welded static contact point on the static contact piece, thereby ensuring the consistency of the quality of the finished static contact; the welding device for the static contact provided by the present invention replaces manual operation, not only meeting the high requirements for assembly and welding of a static contact made of graphene material, but also immediately removing the static contact formed by welding the static contact point and the static contact piece after welding is completed, thereby achieving high production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic assembly and welding, and in particular to a welding device and a welding method for a static contact. Background Art

[0002] In the electrical industry, static contacts are found in load switches for high-voltage, medium-voltage, and low-voltage circuit breakers. While these contacts come in a variety of styles, they generally consist of a static contact piece and a static contact point, with the static contact point welded to the static contact piece. When the circuit breaker is closed or opened, the static contact engages or separates with the moving contact. During these operations, the static contact is subjected to physical shocks such as high voltage, high current, and high temperature. Therefore, the ability of the static contact to withstand these conditions directly impacts the lifespan and performance of the circuit breaker.

[0003] In the prior art, static contacts are mostly silver-based contacts or cadmium oxide contacts. These static contacts are easily oxidized in humid air environments, which increases contact resistance and temperature, greatly increasing the long-term use risks of circuit breakers. Although silver has high electrical and thermal conductivity, it has a low melting point, is soft, has a low Young's modulus, and has poor resistance to welding and electrical corrosion. Therefore, adding elements to silver to form a silver alloy, or forming a pseudo-alloy with metal or non-metal oxides, can improve the resistance to welding and electrical corrosion of static contacts. The alloying method can improve the mechanical properties of silver-based contacts, but at the same time it will sacrifice some of silver's excellent electrical and thermal conductivity. Graphene, as an emerging material, has ultra-high Young's modulus, electrical conductivity, and thermal conductivity, and can replace silver-based contacts.

[0004] When assembling and welding graphene-made static contacts, the welding and assembly precision requirements for the static contacts are relatively high. In the prior art, static contacts are mostly assembled and welded manually. The flux and static contacts are manually placed on the static contact pieces, the assembled static contacts are placed in a welding jig, and the welding jig is then placed between the upper and lower electrodes of the hot melt welding equipment. The welding equipment is powered on and heated for welding. After the hot melt welding is completed, the static contacts are cooled and can be cycled to the next process. This method has the following defects: the manual assembly of the static contacts is inefficient, the thickness of the assembled static contacts is relatively thin, and in the process of moving the welding jig to the hot melt welding equipment, the static contacts and the static contact pieces are easily displaced due to the poor positioning performance of the welding jig, which leads to poor consistency in the quality of the finished static contacts. This method cannot meet the high requirements for the assembly and welding of graphene-made static contacts, and the static contacts cannot be removed immediately after welding is completed, resulting in low production efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a welding device and a welding method for a static contact, which improve the quality of the finished static contact, meet the high requirements for assembly and welding of static contacts made of graphene material, and have high production efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In one aspect, a welding device for a static contact is provided, comprising:

[0008] A turntable, which can rotate around its own axis, and along the circumferential side of the turntable are sequentially provided with a static contact piece loading station, a flux loading station, a contact loading station, a welding station and an unloading station;

[0009] a clamping fixture, provided with at least one, the clamping fixture comprising a base disposed on the turntable, a receiving portion disposed on the base for receiving a stationary contact piece, a first positioning assembly and a second positioning assembly disposed on the base, wherein the first positioning assembly is used to position a first end of the stationary contact piece and a stationary contact point on the receiving portion, and the second positioning assembly is used to position a second end of the stationary contact piece on the receiving portion;

[0010] a first unlocking tool, provided at the loading station and the unloading station of the static contact piece, the first unlocking tool being used to enable the first positioning assembly to release the positioning of the first end of the static contact piece and the static contact point, and to enable the second positioning assembly to release the positioning of the second end of the static contact piece;

[0011] The second unlocking tool is provided at the contact loading station and the welding station, and is used to enable the first positioning assembly to release the positioning of the first end of the static contact piece and the static contact.

[0012] As an optional technical solution for the above-mentioned welding device of the static contact, the static contact piece loading station, the flux loading station, the contact point loading station, the welding station and the unloading station are respectively provided with the clamping tooling.

[0013] As an optional technical solution for the above-mentioned welding device of the static contact, the first positioning assembly includes two first positioning pressure plates relatively arranged on the base and capable of sliding along the first direction, the first positioning pressure plates are connected to the first transmission member, and the first unlocking tooling or the second unlocking tooling is used to drive the two first positioning pressure plates closer to each other through the first transmission member to press the first end of the static contact piece against the accommodating portion and clamp the static contact point, or drive the two first positioning pressure plates away from each other to release the positioning of the first end of the static contact piece.

[0014] As an optional technical solution of the above-mentioned static contact welding device, the first transmission member includes:

[0015] Two release rods are provided, the two release rods are respectively arranged corresponding to the first positioning pressure plate, the release rods are slidably arranged on the base along the second direction, one end of the release rod is provided with an inclined surface, and the inclined surfaces of the two release rods are arranged back to back, and the other end of the release rod is used to connect with the first unlocking tool or the second unlocking tool;

[0016] There are two rolling members, which are respectively connected to the first positioning pressure plate, and the rolling members are arranged to roll on the inclined surface.

[0017] As an optional technical solution of the above-mentioned welding device for the static contact, the second positioning assembly includes:

[0018] a second positioning platen;

[0019] a second transmission member, the second transmission member being slidably connected to the base along a second direction, one end of the second transmission member being connected to the second positioning pressure plate, and the first unlocking tool being used to be connected to the other end of the second transmission member to drive the second positioning pressure plate to release the positioning of the second end of the static contact piece;

[0020] A reset member is connected to the base and the second transmission member, and the reset member is used to make the second positioning pressure plate press the second end of the static contact piece on the accommodating portion.

[0021] As an optional technical solution for the above-mentioned welding device of the static contact, the first unlocking tool includes an unlocking drive member, the output end of the unlocking drive member is connected to an unlocking top plate, and an unlocking block is provided on the unlocking top plate. The unlocking drive member is used to drive the unlocking top plate, and the unlocking top plate enables the first positioning assembly to release the positioning of the first end of the static contact piece and the static contact point, and the unlocking block enables the second positioning assembly to release the positioning of the second end of the static contact piece.

[0022] As an optional technical solution for the above-mentioned welding device of the static contact, the second unlocking tooling includes an unlocking drive member, the output end of the unlocking drive member is connected to an unlocking top plate, the unlocking drive member is used to drive the unlocking top plate, and the unlocking top plate enables the first positioning assembly to release the positioning of the first end of the static contact piece and the static contact point.

[0023] As an optional technical solution for the welding device of the above-mentioned static contact, the base includes a fixed seat, the fixed seat is connected to the turntable, a positioning seat is provided on the fixed seat for sliding along the second direction, the accommodating portion is provided on the positioning seat for sliding along the first direction, and the first positioning assembly and the second positioning assembly are arranged on the positioning seat.

[0024] As an optional technical solution of the above-mentioned welding device for the static contact, the circumferential side of the turntable is sequentially provided with a first detection station and / or a second detection station and / or a third detection station; wherein,

[0025] The first detection station is arranged between the static contact piece loading station and the flux loading station, and is used to detect whether there is a static contact piece on the accommodating portion;

[0026] The second detection station is arranged between the flux loading station and the contact loading station, and is used to detect whether there is flux on the static contact piece;

[0027] The third detection station is arranged between the contact loading station and the welding station, and is used to detect whether there is a static contact on the static contact piece.

[0028] As an optional technical solution of the above-mentioned welding device for the static contact, the first inspection station, the second inspection station and the third inspection station are respectively provided with the clamping tooling.

[0029] As an optional technical solution of the above-mentioned static contact welding device, a blanking detection member is provided at the blanking station, and the blanking detection member is used to detect whether the welded static contact piece and static contact point are blanked.

[0030] On the other hand, a method for welding a static contact is provided, which is applied to any one of the above-mentioned devices for welding a static contact, the welding method comprising:

[0031] Control the turntable to rotate so that the static contact piece loading station has a corresponding clamping tool;

[0032] Controlling the first unlocking tool to release the first positioning assembly and the second positioning assembly from positioning;

[0033] Loading the static contact piece onto the receiving portion of the clamping tool, controlling the first unlocking tool to reset, the first positioning assembly to position the first end of the static contact piece, and the second positioning assembly to position the second end of the static contact piece;

[0034] Controlling the rotation of the turntable to rotate the clamping fixture with the static contact piece to the flux loading station;

[0035] Apply flux to the static contact piece;

[0036] Controlling the rotation of the turntable to rotate the clamping fixture with the flux to the contact loading station;

[0037] controlling the second unlocking tool to enable the first positioning assembly to release the positioning of the first end of the stationary contact piece;

[0038] Loading the static contact onto the flux, controlling the second unlocking tool to reset, and the first positioning assembly to position the first end of the static contact piece and the static contact;

[0039] Controlling the rotation of the turntable to rotate the clamping fixture with the static contact to the welding station;

[0040] Controlling the second unlocking tool to enable the first positioning assembly to release the positioning of the first end of the static contact piece and the positioning of the static contact, and welding the static contact to the static contact piece;

[0041] Controlling the second unlocking tool to reset, and the first positioning assembly to position the first end of the static contact piece and the static contact point on the accommodating portion;

[0042] Controlling the rotation of the turntable to rotate the clamping fixture with the welded static contact and static contact piece to the unloading station;

[0043] Controlling the first unlocking tool to release the first positioning component from positioning the first end of the stationary contact piece and the stationary contact point, and to release the second positioning component from positioning the second end of the stationary contact piece;

[0044] The static contacts and static contact pieces are cut and welded.

[0045] As an optional technical solution of the above-mentioned welding method of the static contact, the flux is a sticky flux.

[0046] Beneficial effects of the present invention:

[0047] The welding device and welding method of the static contact provided by the present invention can realize the automatic loading of the static contact piece, soldering flux and static contact, and the clamping tool for carrying the static contact piece and the static contact is switched to different workstations as the turntable rotates. The turntable has good rotation stability and replaces the manual transfer of the clamping tool; the clamping tool is provided with a first positioning component for positioning the first end of the static contact piece and the static contact, and a second positioning component for positioning the second end of the static contact piece. The static contact piece and the static contact can be fixed during the rotation of the turntable, avoiding displacement of the static contact piece or the static contact and affecting the quality of welding the static contact on the static contact piece, thereby ensuring the consistency of the quality of the finished static contact product; the first unlocking tool can make the first positioning component contact the static contact piece The first end of the static contact piece and the static contact are positioned, and the second positioning component can release the positioning of the second end of the static contact piece, so that the static contact piece can be loaded at the static contact piece loading station or the welded static contact and static contact piece can be unloaded at the unloading station. The second unlocking tool can release the positioning of the first positioning component for the first end of the static contact piece and the static contact, so that the static contact can be loaded at the contact loading station or the static contact can be welded to the static contact piece at the welding station. The welding device of the static contact provided by the present invention replaces manual operation, which can not only meet the high requirements of assembly and welding of static contacts made of graphene material, but also can immediately remove the static contact formed by welding the static contact and the static contact piece after welding is completed, and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 1 is a schematic structural diagram of a static contact provided by an embodiment of the present invention;

[0049] Figure 2 is an exploded view of a static contact provided by an embodiment of the present invention;

[0050] Figure 3 1 is a schematic structural diagram of a welding device for a static contact provided by an embodiment of the present invention from a first perspective;

[0051] Figure 4 This is a schematic structural diagram of a clamping tool provided by an embodiment of the present invention from a first perspective;

[0052] Figure 5 This is an exploded view of the clamping tool provided in an embodiment of the present invention;

[0053] Figure 6 is a structural schematic diagram of a clamping tool provided by an embodiment of the present invention from a second perspective;

[0054] Figure 7 This is a schematic structural diagram of a stationary contact piece loading station provided by an embodiment of the present invention;

[0055] Figure 8 It is a structural schematic diagram of a contact loading station provided by an embodiment of the present invention;

[0056] Figure 9 1 is a structural diagram of a welding station provided in an embodiment of the present invention;

[0057] Figure 10 It is a structural schematic diagram of a blanking station provided by an embodiment of the present invention;

[0058] Figure 11 This is a schematic structural diagram of a flux loading station provided by an embodiment of the present invention;

[0059] Figure 12 2 is a schematic structural diagram of a welding device for a static contact provided by an embodiment of the present invention from a second perspective;

[0060] Figure 13 This is a flow chart of a welding method for a static contact provided by an embodiment of the present invention.

[0061] In the picture:

[0062] 100, static contact; 101, first end; 102, second end; 200, flux; 300, static contact; 400, static contact loading device; 500, flux loading device; 600, contact loading device; 700, welding device; 701, upper electrode; 702, lower electrode; 800, unloading device;

[0063] 1. Turntable; 2. Stationary contact loading station; 3. Flux loading station; 4. Contact loading station; 5. Welding station; 6. Unloading station; 7. Clamping fixture; 8. First unlocking fixture; 9. Second unlocking fixture; 10. First inspection station; 11. Second inspection station; 12. Third inspection station; 13. Turntable drive assembly; 14. Bottom plate; 15. Inspection piece; 16. Fixed plate; 17. Bracket;

[0064] 61. Cutting inspection parts;

[0065] 71. Base; 711. Fixed seat; 712. Positioning seat; 713. Positioning block; 714. Positioning bolt; 715. Limit baffle; 716. Slideway; 717. First slide rail; 718. First slider; 719. Second slide rail; 72. Accommodating portion; 721. Second slider; 722. Accommodating slot; 73. First positioning assembly; 731. First positioning pressure plate; 732. First transmission member; 7321. Separation rod; 7322. Inclined surface; 7323. Rolling member; 733. Third slider; 74. Second positioning assembly; 741. Second positioning pressure plate; 742. Second transmission member; 743. Resetting member;

[0066] 81. Unlocking drive member; 82. Unlocking top plate; 83. Unlocking block;

[0067] a. First direction; b. Second direction. DETAILED DESCRIPTION

[0068] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0069] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0070] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0071] Example 1

[0072] In the electrical industry, static contacts are present in the load switches of high-voltage, medium-voltage, and low-voltage circuit breaker products. When the circuit breaker is closed, the static contact of the circuit breaker contacts the moving contact. When the circuit breaker is open, the static contact of the circuit breaker separates from the moving contact.

[0073] like Figure 1 and Figure 2 As shown, the static contact generally includes a static contact piece 100 and a static contact point 300 disposed on the static contact piece 100. When assembling the static contact, the static contact point 300 is generally welded to the static contact piece 100. Specifically, flux 200 is added to the corresponding position on the static contact piece 100, the static contact point 300 is placed at the position of the static contact piece 100 where the flux 200 is applied, and then the static contact point 300 is welded to the static contact piece 100 using a hot melt device.

[0074] In order to realize the welding of the static contact 300 to the static contact piece 100 and also meet the assembly and welding requirements of the static contact made of graphene material, this embodiment provides a welding device for the static contact, which can realize automatic loading, automatic welding and automatic unloading, with high assembly accuracy and good welding quality, thereby improving the quality of the finished static contact and also improving production efficiency.

[0075] Specifically, if Figure 2 As shown, the static contact piece 100 has a first end 101 and a second end 102, Figure 2 、 Figure 3 and Figure 4 As shown, the welding device for the static contact provided in this embodiment includes a turntable 1 , a clamping tool 7 , a first unlocking tool 8 and a second unlocking tool 9 .

[0076] The turntable 1 is capable of rotating about its own axis. Along the circumferential side of the turntable 1 are sequentially arranged a stationary contact loading station 2, a flux loading station 3, a contact loading station 4, a welding station 5, and an unloading station 6. The stationary contact loading station 2 is used to load the stationary contact 100, the flux loading station 3 is used to load flux 200 onto the stationary contact 100, the contact loading station 4 is used to load the stationary contact 300 to the position of the stationary contact 100 where the flux 200 is applied, the welding station 5 is used to weld the stationary contact 300 to the stationary contact 100, and the unloading station 6 is used to unload the welded stationary contact 300 and stationary contact 100 to a designated location. Automatic loading of the static contact piece 100, flux 200 and static contact 300, and automatic welding of the static contact 300 and the static contact piece 100 are realized, and the clamping tool 7 for carrying the static contact piece 100 and the static contact 300 is switched to different workstations as the turntable 1 rotates. The turntable 1 has good rotation stability, replacing the manual transfer of the clamping tool 7.

[0077] At least one clamping fixture 7 is provided. The clamping fixture 7 includes a base 71, which is mounted on the turntable 1 so that the clamping fixture 7 can rotate with the turntable 1. Rotation of the turntable 1 allows the clamping fixture 7 to be moved to any of the stationary contact loading station 2, flux loading station 3, contact loading station 4, welding station 5, and unloading station 6. A receiving portion 72 is provided on the base 71 for accommodating the stationary contact 100. A first positioning assembly 73 and a second positioning assembly 74 are also provided on the base 71. The first positioning assembly 73 is used to position the first end 101 of the stationary contact 100 and the stationary contact 300 on the receiving portion 72, and the second positioning assembly 74 is used to position the second end 102 of the stationary contact 100 on the receiving portion 72. The clamping tool 7 has a first positioning component 73 and a second positioning component 74 for positioning the first end 101 and the second end 102 of the static contact piece 100. The first positioning component 73 can also position the static contact 300. During the rotation of the turntable 1, the static contact piece 100 and the static contact 300 can be fixed to avoid displacement of the static contact piece 100 or the static contact 300 and affecting the quality of welding the static contact 300 on the static contact piece 100, thereby ensuring the consistency of the quality of the finished static contact.

[0078] A first unlocking tool 8 is provided at the static contact loading station 2 and the unloading station 6 respectively. The first unlocking tool 8 is used to enable the first positioning component 73 to release the positioning of the first end 101 of the static contact 100 and the static contact point 300, and to enable the second positioning component 74 to release the positioning of the second end 102 of the static contact 100, so as to facilitate the loading of the static contact 100 at the static contact loading station 2 or the unloading of the welded static contact point 300 and the static contact 100 at the unloading station 6.

[0079] A second unlocking tool 9 is provided at the contact loading station 4 and the welding station 5 respectively. The second unlocking tool 9 is used to enable the first positioning component 73 to release the positioning of the first end 101 of the static contact piece 100 and the static contact 300, so as to facilitate the loading of the static contact 300 at the contact loading station 4 or the welding of the static contact 300 to the static contact piece 100 at the welding station 5.

[0080] The welding device for the static contact provided in this embodiment replaces manual operation, which not only meets the high requirements for assembly and welding of static contacts made of graphene material, but also allows the static contact formed by welding the static contact point 300 and the static contact piece 100 to be removed immediately after welding is completed, thereby achieving high production efficiency.

[0081] In some embodiments, the turntable 1 is driven by a turntable drive assembly 13. The angle and speed of rotation of the turntable 1 can be set to meet production requirements. Furthermore, the rotation of the turntable 1 can be achieved by a single power drive, effectively reducing the number of power drive components required.

[0082] The turntable drive assembly 13 includes a turntable drive motor and a reducer, or the turntable drive assembly 13 includes a turntable drive motor, a belt transmission member and a reducer, which is not specifically limited here.

[0083] The rotation cycle of the turntable 1 can be a circular cycle, and the turntable 1 can be a circular turntable, which is convenient for arranging various workstations. In other embodiments, the rotation cycle of the turntable 1 can be a "mouth" shape, a "return" shape, a "field" shape or a "one" shape.

[0084] To facilitate the fixing and installation of the turntable drive assembly 13, the static contact welding device also includes a base plate 14. The turntable drive assembly 13 is mounted on the base plate 14. Driven by the turntable drive assembly 13, the turntable 1 can rotate relative to the base plate 14. The static contact loading station 2, the flux loading station 3, the contact loading station 4, the welding station 5, and the unloading station 6 are arranged on the base plate 14 along the circumference of the turntable 1.

[0085] In some embodiments, in order to improve production efficiency, the static contact loading station 2, flux loading station 3, contact loading station 4, welding station 5 and unloading station 6 are respectively provided with clamping tools 7, and the above stations can work simultaneously.

[0086] In some embodiments, as Figure 4 and Figure 5As shown, the base 71 includes a fixed seat 711 connected to the turntable 1. A positioning seat 712 is provided on the fixed seat 711 for sliding along a second direction b, which is parallel to the rotation axis of the turntable 1. The accommodating portion 72, the first positioning assembly 73, and the second positioning assembly 74 are all disposed on the positioning seat 712. By adjusting the position of the positioning seat 712 in the second direction b, the accommodating portion 72 can be adjusted, and thus the position of the static contact piece 100 or static contact point 300 placed in the accommodating portion 72 relative to the equipment at each workstation can be adjusted, thereby facilitating loading, welding, or unloading, and improving the machining accuracy of the static contact.

[0087] Optionally, a first slide rail 717 is provided on the fixed seat 711 along the second direction b, and a first slider 718 is provided on the positioning seat 712. The first slider 718 is slidably provided on the first slide rail 717. When there is no need to adjust the position of the positioning seat 712, in order to prevent the positioning seat 712 from sliding relative to the fixed seat 711, positioning blocks 713 are provided above and below the positioning seat 712 along the second direction b, respectively. The positioning blocks 713 are provided on the fixed seat 711, and a positioning bolt 714 is screwed onto the positioning block 713. Adjusting the positioning bolt 714 so that the positioning bolt 714 abuts against the positioning seat 712 can limit the positioning seat 712 from sliding along the second direction b. This structure is simple and also facilitates adjustment of the position of the positioning seat 712.

[0088] The accommodating portion 72 is slidably disposed on the positioning seat 712 along the first direction a, thereby adjusting the position of the static contact 100 or the static contact 300 in the first direction a. Optionally, a second slide rail 719 is provided on the positioning seat 712 along the first direction a. The accommodating portion 72 includes a second slider 721 slidably disposed on the second slide rail 719. The second slider 721 is provided with an accommodating groove 722 for accommodating the static contact 100. After the static contact 100 is placed in the accommodating groove 722, the first end 101 of the static contact 100 is positioned outside the accommodating groove 722, while the second end 102 of the static contact 100 is positioned inside the accommodating groove 722. The soldering flux 200 and the static contact 300 are both placed on the first end 101 of the static contact 100.

[0089] In some embodiments, the first positioning assembly 73 includes two first positioning pressure plates 731 relatively arranged on the base 71, and the two first positioning pressure plates 731 can slide along the first direction a, the first positioning pressure plates 731 are connected to the first transmission member 732, and the first unlocking tooling 8 or the second unlocking tooling 9 is used to drive the two first positioning pressure plates 731 to approach each other through the first transmission member 732 to press the first end 101 of the static contact piece 100 on the accommodating portion 72 and clamp the static contact 300, that is, the spacing between the two first positioning pressure plates 731 can accommodate the static contact 300, or drive the two first positioning pressure plates 731 away from each other to release the positioning of the first end 101 of the static contact piece 100. Two first positioning pressure plates 731 are set to move toward each other to press the static contact piece 100 and clamp the static contact point 300, which effectively improves the stability of the fixed static contact piece 100 and the static contact point 300, and can also ensure that the static contact piece 100 and the static contact point 300 are at the specified position, thereby improving the positioning accuracy and repeatability of the static contact piece 100 and the static contact point 300.

[0090] According to the structure of the above-mentioned base 71, the first positioning plate 731 is slidably disposed on the positioning seat 712 and is slidably connected to the first positioning plate 731 via the second slide rail 719 on the positioning seat 712. The first positioning plate 731 is connected to a third slider 733, which is slidably disposed on the second slide rail 719, so that the position of the first positioning plate 731 can be adjusted in the first direction a. The second slide rail 719 is respectively provided with a limit stop 715 at each end to prevent the first positioning plate 731 from slipping off the second slide rail 719.

[0091] The first end 101 of the static contact piece 100 is placed on the outside of the accommodating groove 722, and the first positioning pressure plate 731 is set to an L-shaped structure. One end of the first positioning pressure plate 731 is connected to the third slider 733, and the other ends of the two first positioning pressure plates 731 extend toward each other to press the first end of the static contact piece 100. The two first positioning pressure plates 731 can clamp the static contact point 300.

[0092] Furthermore, if Figure 5 and Figure 6 As shown, the first transmission member 732 includes a release rod 7321 and a rolling member 7323. Two release rods 7321 are provided, each corresponding to the first positioning plate 731. The release rods 7321 are slidably mounted on the base 71 along the second direction b. Optionally, the release rods 7321 are slidably mounted on the positioning seat 712, with one end of the release rod 7321 penetrating the positioning seat 712 along the second direction b. To ensure the stability of the release rod 7321 moving along the second direction b, a slide groove 716 is further provided on the positioning seat 712, with the other end of the release rod 7321 slidably mounted within the slide groove 716.

[0093] One end of the separation rod 7321 is provided with an inclined surface 7322, and the inclined surfaces 7322 of the two separation rods 7321 are arranged back to back. The other end of the separation rod 7321 is used to connect with the first unlocking fixture 8 or the second unlocking fixture 9. Each first positioning pressure plate 731 is connected to a rolling member 7323, and the rolling member 7323 is rolled on the inclined surface 7322. The first unlocking fixture 8 or the second unlocking fixture 9 can drive the separation rod 7321 to slide on the positioning seat 712 along the second direction b. During the sliding of the separation rod 7321 along the second direction b, the rolling member 7323 drives the first positioning plate 731 to slide on the positioning seat 712 as the inclined surface 7322 changes, thereby achieving the movement of the two first positioning plates 731 toward or away from each other.

[0094] Optionally, the inclined surface 7322 is an arc-shaped surface, and the rolling member 7323 includes a roller and a roller shaft, one end of the roller shaft is connected to the first positioning pressure plate 731, and the roller is rotationally connected to the other end of the roller shaft, and the roller is rollingly set on the inclined surface 7322.

[0095] A limit rod is provided on the separation rod 7321, and the limit rod is set on the side of the positioning seat 712 away from the first unlocking tooling 8 or the second unlocking tooling 9. When the first unlocking tooling 8 or the second unlocking tooling 9 is not connected to the separation rod 7321, the separation rod 7321 falls by its own gravity, and the roller rolls along the inclined surface 7322, and drives the first positioning pressure plate 731 to move in the direction of approaching each other. The limit rod is pressed against the positioning seat 712 to prevent the separation rod 7321 from separating from the positioning seat 712, thereby limiting the separation rod 7321.

[0096] In some embodiments, as Figures 7 to 10 As shown, both the first unlocking fixture 8 and the second unlocking fixture 9 include an unlocking driver 81. The output end of the unlocking driver 81 is connected to an unlocking top plate 82. The unlocking driver 81 is used to drive the unlocking top plate 82. The unlocking top plate 82 causes the first positioning assembly 73 to release the first end 101 of the static contact piece 100 and the static contact point 300. The driving of the unlocking driver 81 automatically releases the first end 101 of the static contact piece 100 and the static contact point 300 from the first positioning assembly 73, without causing displacement of the static contact piece 100 or the static contact point 300 during the release process.

[0097] According to the structure of the above-mentioned first positioning assembly 73, the unlocking drive member 81 can drive the unlocking top plate 82 to move along the second direction b, so as to lift the separation rod 7321 along the second direction b, so that the separation rod 7321 slides along the second direction b, thereby achieving the purpose of driving the first positioning pressure plate 731 to slide along the first direction a, and the unlocking top plate 82 can simultaneously drive the two separation rods 7321 to achieve synchronous sliding of the two first positioning pressure plates 731.

[0098] The unlocking drive member 81 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, etc., which is not specifically limited here.

[0099] In some embodiments, continue to refer to Figure 5 and Figure 6 As shown, the second positioning assembly 74 includes a second positioning plate 741, a second transmission member 742, and a reset member 743. The second transmission member 742 is slidably connected to the base 71 along the second direction b. One end of the second transmission member 742 is connected to the second positioning plate 741. The first unlocking tool 8 is used to connect to the other end of the second transmission member 742 to drive the second positioning plate 741 to release the positioning of the second end 102 of the static contact piece 100. The reset member 743 is connected to the base 71 and the second transmission member 742. The reset member 743 is used to press the second positioning plate 741 against the second end 102 of the static contact piece 100 on the accommodating portion 72. That is, when the first unlocking tool 8 is not connected to the second transmission member 742, the reset member 743 presses the second positioning plate 741 against the static contact piece 100, thereby positioning the second end 102 of the static contact piece 100.

[0100] The reset member 743 may be a spring. When the first unlocking tool 8 is connected to the second transmission member 742 and drives the second transmission member 742 to slide upward in the second direction b, the spring is compressed, causing the second positioning plate 741 to move upward and separate from the second end 102 of the static contact piece 100, thereby releasing the positioning of the second end 102 of the static contact piece 100. When the first unlocking tool 8 is separated from the second transmission member 742, the spring releases its elastic potential energy and drives the second transmission member 742 to slide downward in the second direction b, thereby driving the second positioning plate 741 to move downward and press the second end 102 of the static contact piece 100 onto the accommodating portion 72.

[0101] Optionally, multiple reset members 743 can be provided as backup. When one of the reset members 743 fails, the second positioning assembly 74 can still perform the corresponding function.

[0102] In some embodiments, as Figure 7 and Figure 10 As shown, the first unlocking tool 8 can cause the second positioning assembly 74 to release the positioning of the second end 102 of the static contact piece 100. The first unlocking tool 8 also includes an unlocking block 83, which is disposed on the unlocking top plate 82. When the unlocking drive member 81 drives the unlocking top plate 82, the unlocking block 83 causes the second positioning assembly 74 to release the positioning of the second end 102 of the static contact piece 100. This structure is simple and can simultaneously activate the first positioning assembly 73 and the second positioning assembly 74 to release the positioning of the static contact piece 100.

[0103] Based on the structure of the second positioning assembly 74 described above, the unlocking driver 81 drives the unlocking top plate 82 to move in the second direction b, thereby driving the unlocking block 83 to move in the second direction b. The unlocking block 83 is connected to the other end of the second transmission member 742. When the unlocking driver 81 drives the unlocking block 83 upward in the second direction b, the unlocking block 83 contacts the second transmission member 742 and drives the second transmission member 742 upward in the second direction b. The second positioning pressure plate 741 separates from the static contact piece 100, releasing the positioning of the second end 102 of the static contact piece 100. When the unlocking driver 81 drives the unlocking block 83 downward in the second direction b, the unlocking block 83 separates from the second transmission member 742. The second transmission member 742 slides downward in the second direction b due to the elastic potential energy of the spring, thereby driving the second positioning pressure plate 741 to move downward in the second direction b, thereby pressing the second end 102 of the static contact piece 100 against the accommodating portion 72.

[0104] In this application, a first unlocking tool 8 is set at the static contact loading station 2 and the unloading station 6, and a second unlocking tool 9 is set at the contact loading station 4 and the welding station 5. The second unlocking tool 9 has the same partial structure as the first unlocking tool 8, and the first unlocking tool 8 and the second unlocking tool 9 can be used in conjunction with the clamping tool 7, which reduces the design and manufacturing difficulty of the entire equipment, reduces maintenance and manufacturing costs, and has strong versatility.

[0105] In addition, the static contact piece loading device 400 (static contact piece loading device 400 refers to Figure 7 As shown), the flux feeding device 500 is provided at the flux feeding station 3 (the flux feeding device 500 refers to Figure 11 As shown), the contact loading device 600 provided at the contact loading station 4 (the contact loading device 600 refers to Figure 8 As shown), the welding equipment 700 provided at the welding station 5 (the welding equipment 700 refers to Figure 9 The welding device 700 is a hot melt welding device and includes an upper electrode 701 and a lower electrode 702. The upper electrode 701 and the lower electrode 702 are disposed on opposite sides of the stationary contact piece 100. The upper electrode 701 and the lower electrode 702 can move toward each other and press the stationary contact piece 100 and the stationary contact point 300 together, and heat is applied to achieve hot melt welding. The specific welding principle is based on the existing technology. After welding is completed, the upper electrode 701 and the lower electrode 702 move in opposite directions to release the stationary contact piece 100 and the stationary contact point 300.

[0106] like Figure 10As shown, a blanking device 800 is provided at the blanking station 6. In some embodiments, the blanking device 800 includes a blanking hook, a translation driver for driving the blanking hook to translate, and a lifting driver for driving the blanking hook to elevate along the second direction b. According to the structure of the static contact 100, the first end 101 of the static contact 100 is provided with an opening. The lifting driver drives the blanking hook to rise a preset distance. The translation driver drives the blanking hook to move toward the static contact 100. The lifting driver then drives the blanking hook down a preset distance so that the blanking hook is hooked in the opening of the static contact 100. The translation driver drives the blanking hook to translate, separating the static contact 100 from the accommodating portion 72. After the static contact 100 is completely separated from the accommodating portion 72, the static contact 100 descends by its own gravity, separates from the blanking hook, and falls to a designated position. This cycle is repeated to achieve blanking of the welded static contact 300 and static contact 100, without waiting for the static contact 300 and static contact 100 to cool, thereby improving processing efficiency.

[0107] In some other embodiments, the unloading equipment 800 includes a mechanical claw, a moving driver for driving the mechanical claw to move, and a clamping driver for driving the mechanical claw to grasp or release the static contact piece 100. The above structures are all existing technologies and will not be described in detail here.

[0108] In some embodiments, as Figure 12 As shown, the circumferential side of the turntable 1 is sequentially provided with a first inspection station 10 and / or a second inspection station 11 and / or a third inspection station 12 .

[0109] The first inspection station 10 is located between the static contact loading station 2 and the flux loading station 3 and is used to detect whether the static contact 100 is on the accommodating portion 72. The second inspection station 11 is located between the flux loading station 3 and the contact loading station 4 and is used to detect whether the flux 200 is on the static contact 100. The third inspection station 12 is located between the contact loading station 4 and the welding station 5 and is used to detect whether the static contact 300 is on the static contact 100. The first inspection station 10, the second inspection station 11, and the third inspection station 12 ensure that the static contact 100, the flux 200, and the static contact 300 can all be effectively loaded, thereby reducing the defective product rate.

[0110] Furthermore, the first inspection station 10 , the second inspection station 11 and the third inspection station 12 are respectively provided with clamping fixtures 7 to improve the overall working efficiency of the welding device of the static contact.

[0111] The first, second, and third inspection stations 10, 11, and 12 all include an inspection element 15 for inspecting the stationary contact 100, solder flux 200, or stationary contact 300. A fixed disk 16 is fixedly mounted on the base plate 14 and positioned above the turntable 1. Inspection element 15 is secured to the fixed disk 16 via a bracket 17, with the inspection end of inspection element 15 positioned above the fixture 7. Inspection element 15 can be a photoelectric sensor, a through-beam sensor, an image acquisition device, or a physical depth detection sensor, among other options, without specific limitations herein.

[0112] In some embodiments, a blanking detection part 61 is provided at the blanking station 6, and the blanking detection part 61 is used to detect whether the welded static contact piece 100 and static contact point 300 are blanked, so as to prepare for the clamping tool 7 to circulate to the static contact piece loading station 2 to load the static contact piece 100.

[0113] The blanking detection member 61 is fixed to the fixed plate 16 via the bracket 17, and the detection end of the blanking detection member 61 is arranged above the clamping fixture 7. The blanking detection member 61 can be a photoelectric sensor, a through-beam sensor, an image collector, or a physical depth detection sensor, etc., which are not specifically limited here.

[0114] Example 2

[0115] like Figure 13 As shown, this embodiment provides a method for welding a static contact, which is applied to the static contact welding device provided in any embodiment of the first embodiment to achieve welding of the static contact 300 and the static contact piece 100. The structure of the static contact welding device mentioned in this embodiment is referred to in the first embodiment.

[0116] In this embodiment, the welding method of the static contact includes:

[0117] Step 1: Control the turntable 1 to rotate so that the static contact piece loading station 2 corresponds to the clamping tool 7 to load the static contact piece 100 onto the clamping tool 7.

[0118] Step 2: Control the first unlocking tool 8 to release the first positioning component 73 and the second positioning component 74 from their positions.

[0119] Specifically, a first unlocking tool 8 is provided at the static contact piece loading station 2. In the default state, the first positioning component 73 and the second positioning component 74 are in a state of locking the static contact piece 100. Therefore, when the static contact piece 100 needs to be placed on the clamping tool 7, the first unlocking tool 8 needs to be controlled to release the first positioning component 73 and the second positioning component 74 from positioning, so as to provide avoidance space for placing the static contact piece 100 on the clamping tool 7.

[0120] Step 3: Load the static contact piece 100 onto the receiving portion 72 of the clamping tool 7, control the first unlocking tool 8 to reset, the first positioning component 73 positions the first end 101 of the static contact piece 100, and the second positioning component 74 positions the second end 102 of the static contact piece 100.

[0121] Specifically, a static contact piece loading device 400 is provided at the static contact piece loading station 2. The static contact piece loading device 400 loads the static contact piece 100 onto the accommodating portion 72 of the clamping tool 7, so that the first unlocking tool 8 is reset. The first positioning component 73 positions the first end 101 of the static contact piece 100, and the second positioning component 74 positions the second end 102 of the static contact piece 100 to prevent the static contact piece 100 from being displaced during the rotation of the turntable 1.

[0122] Furthermore, after loading the static contact piece 100, in order to ensure that the static contact piece 100 is effectively loaded, it is necessary to detect whether the static contact piece 100 is successfully loaded onto the clamping fixture 7. Specifically, a first detection station 10 is provided downstream of the static contact piece loading station 2. The first detection station 10 is used to detect whether the static contact piece 100 is on the accommodating portion 72. The specific detection method thereof is described in Example 1 and will not be described in detail here.

[0123] Step 4: Control the turntable 1 to rotate, so that the clamping fixture 7 with the static contact piece 100 rotates to the flux loading station 3.

[0124] Step 5: Apply soldering flux 200 onto the stationary contact piece 100 .

[0125] Specifically, a flux loading device 500 is provided at the flux loading station 3 , and the flux loading device 500 loads the flux 200 onto a designated position of the static contact piece 100 .

[0126] In order to fix the static contact 300 and avoid the static contact 300 from shifting when the turntable 1 rotates or welds, thereby causing defective products, the flux 200 is preferably a sticky flux that can adhere the static contact 300 to the static contact piece 100 and play a certain fixing role for the static contact 300.

[0127] Furthermore, after the flux 200 is loaded, in order to ensure that the flux 200 is loaded effectively, it is necessary to detect whether the flux 200 is loaded successfully onto the stationary contact piece 100. Specifically, a second detection station 11 is provided downstream of the flux loading station 3. The second detection station 11 is used to detect whether the flux 200 is on the stationary contact piece 100. The specific detection method is described in Example 1 and will not be described in detail here.

[0128] Step 6: Control the turntable 1 to rotate, so that the clamping tool 7 with the flux 200 rotates to the contact loading station 4.

[0129] Step 7: Control the second unlocking tool 9 to enable the first positioning component 73 to release the positioning of the first end 101 of the static contact piece 100.

[0130] Specifically, in order not to affect the placement of the static contact 300, a second unlocking tool 9 is set at the contact loading station 4. The second unlocking tool 9 can enable the first positioning component 73 to release the positioning of the first end 101 of the static contact piece 100, while the second positioning component 74 still positions the second end 102 of the static contact piece 100, thereby preventing the static contact piece 100 from shifting.

[0131] Step eight: Load the static contact 300 onto the flux 200 , control the second unlocking tool 9 to reset, and the first positioning assembly 73 to position the first end 101 of the static contact piece 100 and the static contact 300 .

[0132] Specifically, the flux 200 is preferably a viscous flux, and the static contact 300 can be bonded to the static contact piece 100 through the flux 200, preventing the static contact 300 from being displaced relative to the static contact piece 100, thereby securing the static contact 300. After the static contact 300 is placed on the static contact piece 100, the first positioning assembly 73 is required to position the first end 101 of the static contact piece 100 and the static contact 300 to prevent relative displacement between the static contact piece 100 and the static contact 300, which could affect the subsequent welding quality.

[0133] Furthermore, after loading the static contact 300, to ensure effective loading of the static contact 300, it is necessary to detect whether the static contact 300 has been successfully loaded onto the static contact piece 100. Specifically, a third detection station 12 is provided downstream of the contact loading station 4. The third detection station 12 is used to detect whether the static contact 300 is present on the static contact piece 100. The specific detection method is described in Example 1 and is not described in detail here.

[0134] Step nine: Control the turntable 1 to rotate, so that the clamping fixture 7 with the static contact 300 rotates to the welding station 5.

[0135] Step 10: Control the second unlocking tool 9 to release the first positioning assembly 73 from positioning the first end 101 of the static contact piece 100 and the static contact 300 , and weld the static contact 300 to the static contact piece 100 .

[0136] Specifically, in order to prevent the first positioning component 73 from affecting the welding of the static contact 300, before welding, the second unlocking tool 9 enables the first positioning component 73 to release the positioning of the first end 101 of the static contact piece 100 and the static contact 300. The static contact 300 can be positioned on the static contact piece 100 through the sticky flux 200. During the welding process, the displacement of the static contact 300 relative to the static contact piece 100 is reduced.

[0137] Step 11: Control the second unlocking tool 9 to reset, and the first positioning assembly 73 positions the first end 101 of the static contact piece 100 and the static contact point 300 on the accommodating portion 72 .

[0138] Specifically, during the rotation of the turntable 1, the first positioning assembly 73 positions the first end 101 of the static contact piece 100 and the static contact point 300 on the accommodating portion 72 to prevent the static contact piece 100 from being displaced and affecting the static contact piece 100 and the static contact point 300 that have been cut and welded.

[0139] Step 12: Control the turntable 1 to rotate, so that the clamping tool 7 with the welded static contact 300 and the static contact piece 100 is rotated to the unloading station 6.

[0140] Step 13: Control the first unlocking tool 8 to release the first positioning component 73 from positioning the first end 101 of the static contact piece 100 and the static contact point 300 , and release the second positioning component 74 from positioning the second end 102 of the static contact piece 100 .

[0141] Step 14: Cut and weld the completed static contact 300 and static contact piece 100.

[0142] Furthermore, a blanking detection part 61 is provided at the blanking station 6, which is used to detect whether the welded static contact piece 100 and static contact point 300 are blanked, so as to prepare for the clamping tool 7 to circulate to the static contact piece loading station 2 to load the static contact piece 100.

[0143] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A welding device for a static contact, characterized in that: include: A turntable (1), the turntable (1) being rotatable about its own axis, and having a static contact piece loading station (2), a flux loading station (3), a contact loading station (4), a welding station (5) and a unloading station (6) sequentially arranged along the circumferential side of the turntable (1); A clamping tool (7) is provided with at least one, the clamping tool (7) comprising a base (71) arranged on the turntable (1), a receiving portion (72) arranged on the base (71) for receiving a static contact piece (100), a first positioning component (73) and a second positioning component (74) arranged on the base (71), wherein the first positioning component (73) is used to position the first end (101) of the static contact piece (100) and the static contact point (300) on the receiving portion (72), and the second positioning component (74) is used to position the second end (102) of the static contact piece (100) on the receiving portion (72); A first unlocking tool (8) is provided at the static contact piece loading station (2) and the static contact point (300), and is used to enable the first positioning component (73) to release the positioning of the first end (101) of the static contact piece (100) and the static contact point (300), and to enable the second positioning component (74) to release the positioning of the second end (102) of the static contact piece (100); A second unlocking tool (9) is provided at the contact loading station (4) and the welding station (5), and the second unlocking tool (9) is used to enable the first positioning component (73) to release the positioning of the first end (101) of the static contact piece (100) and the static contact (300).

2. The welding device for static contacts according to claim 1, characterized in that: The static contact piece loading station (2), the flux loading station (3), the contact point loading station (4), the welding station (5) and the unloading station (6) are respectively provided with the clamping tool (7).

3. The welding device for static contacts according to claim 1, characterized in that: The first positioning assembly (73) includes two first positioning pressure plates (731) that are relatively arranged on the base (71) and can slide along the first direction (a), the first positioning pressure plates (731) are connected to the first transmission member (732), and the first unlocking tool (8) or the second unlocking tool (9) is used to drive the two first positioning pressure plates (731) to approach each other through the first transmission member (732) to press the first end (101) of the static contact piece (100) on the accommodating portion (72) and clamp the static contact point (300), or drive the two first positioning pressure plates (731) to move away from each other to release the positioning of the first end (101) of the static contact piece (100).

4. The welding device for static contacts according to claim 3, characterized in that: The first transmission member (732) comprises: There are two separation rods (7321), and the two separation rods (7321) are respectively arranged corresponding to the first positioning pressure plate (731). The separation rods (7321) are slidably arranged on the base (71) along the second direction (b). One end of the separation rod (7321) is provided with an inclined surface (7322), and the inclined surfaces (7322) of the two separation rods (7321) are arranged back to back. The other end of the separation rod (7321) is used to connect with the first unlocking tool (8) or the second unlocking tool (9); There are two rolling members (7323), and the two rolling members (7323) are respectively connected to the first positioning pressure plate (731), and the rolling members (7323) are rollingly arranged on the inclined surface (7322).

5. The welding device for static contacts according to claim 1, characterized in that: The second positioning assembly (74) includes: A second positioning plate (741); a second transmission member (742), the second transmission member (742) being slidably connected to the base (71) along a second direction (b), one end of the second transmission member (742) being connected to the second positioning pressure plate (741), and the first unlocking tool (8) being used to be connected to the other end of the second transmission member (742) to drive the second positioning pressure plate (741) to release the positioning of the second end (102) of the static contact piece (100); A reset member (743) connects the base (71) and the second transmission member (742), and the reset member (743) is used to enable the second positioning pressure plate (741) to press the second end (102) of the static contact piece (100) against the accommodating portion (72).

6. The welding device for static contacts according to claim 1, characterized in that: The first unlocking tool (8) includes an unlocking drive member (81), the output end of the unlocking drive member (81) is connected to an unlocking top plate (82), and the unlocking top plate (82) is provided with an unlocking block (83). The unlocking drive member (81) is used to drive the unlocking top plate (82), and the unlocking top plate (82) enables the first positioning component (73) to release the positioning of the first end (101) of the static contact piece (100) and the static contact point (300), and the unlocking block (83) enables the second positioning component (74) to release the positioning of the second end (102) of the static contact piece (100).

7. The welding device for a static contact according to claim 1, characterized in that: The second unlocking tool (9) includes an unlocking drive member (81), the output end of the unlocking drive member (81) is connected to an unlocking top plate (82), and the unlocking drive member (81) is used to drive the unlocking top plate (82), and the unlocking top plate (82) enables the first positioning component (73) to release the positioning of the first end (101) of the static contact piece (100) and the static contact point (300).

8. The welding device for static contacts according to claim 1, characterized in that: The base (71) includes a fixed seat (711), the fixed seat (711) is connected to the turntable (1), a positioning seat (712) is provided on the fixed seat (711) for sliding along the second direction (b), the accommodating portion (72) is provided on the positioning seat (712) for sliding along the first direction (a), and the first positioning component (73) and the second positioning component (74) are provided on the positioning seat (712).

9. The welding device for a static contact according to claim 1, characterized in that: The circumferential side of the turntable (1) is provided with a first detection station (10) and / or a second detection station (11) and / or a third detection station (12) in sequence; wherein, The first detection station (10) is arranged between the static contact piece loading station (2) and the soldering flux loading station (3) and is used to detect whether there is a static contact piece (100) on the accommodating portion (72); The second detection station (11) is arranged between the soldering flux loading station (3) and the contact loading station (4) and is used to detect whether there is soldering flux (200) on the static contact piece (100); The third detection station (12) is arranged between the contact loading station (4) and the welding station (5) and is used to detect whether there is a static contact (300) on the static contact piece (100).

10. The welding device for static contacts according to claim 9, characterized in that: The first inspection station (10), the second inspection station (11) and the third inspection station (12) are respectively provided with the clamping tooling (7).

11. The welding device for a static contact according to claim 1, characterized in that: The blanking station (6) is provided with a blanking detection part (61), and the blanking detection part (61) is used to detect whether the welded static contact piece (100) and static contact point (300) are blanked.

12. A method for welding a static contact, applied to a welding device for a static contact according to any one of claims 1 to 11, characterized in that: The welding method comprises: The turntable (1) is controlled to rotate so that a clamping tool (7) is provided at the stationary contact piece loading station (2); Controlling the first unlocking tool (8) to release the first positioning component (73) and the second positioning component (74); Loading the static contact piece (100) onto the accommodating portion (72) of the clamping tool (7), controlling the first unlocking tool (8) to reset, the first positioning component (73) positioning the first end (101) of the static contact piece (100), and the second positioning component (74) positioning the second end (102) of the static contact piece (100); Controlling the rotation of the turntable (1) to rotate the clamping fixture (7) with the static contact piece (100) to rotate to the flux loading station (3); Applying soldering flux (200) on the static contact piece (100); Controlling the rotation of the turntable (1) to rotate the clamping fixture (7) with the soldering flux (200) to the contact loading station (4); controlling the second unlocking tool (9) to enable the first positioning component (73) to release the positioning of the first end (101) of the stationary contact piece (100); Loading the static contact (300) onto the soldering flux (200), controlling the second unlocking tool (9) to reset, and the first positioning component (73) positioning the first end (101) of the static contact piece (100) and positioning the static contact (300); Controlling the rotation of the turntable (1) to rotate the clamping fixture (7) having the static contact (300) to the welding station (5); Controlling the second unlocking tool (9) to enable the first positioning component (73) to release the positioning of the first end (101) of the static contact piece (100) and the positioning of the static contact point (300), and welding the static contact point (300) to the static contact piece (100); The second unlocking tool (9) is controlled to reset, and the first positioning component (73) positions the first end (101) of the static contact piece (100) and the static contact point (300) on the accommodating portion (72); Controlling the rotation of the turntable (1) to rotate the clamping fixture (7) with the welded static contact (300) and the static contact piece (100) to the unloading station (6); Controlling the first unlocking tool (8) to release the first positioning component (73) from positioning the first end (101) of the stationary contact piece (100) and the stationary contact point (300), and to release the second positioning component (74) from positioning the second end (102) of the stationary contact piece (100); The static contact (300) and the static contact piece (100) are completed by blanking and welding.

13. The welding method of a static contact according to claim 12, characterized in that: The soldering flux (200) is a sticky soldering flux.

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