Assembly equipment for thermal element assembly

Abstract

The invention discloses assembling equipment for a thermal element assembly, and belongs to the technical field of automation equipment.The assembling equipment comprises a first welding device, a shaping device, a second welding device and a pressing device, the shaping device is arranged between the first welding device and the second welding device, and the second welding device is arranged between the shaping device and the pressing device; the second welding device comprises a positioning mechanism, a clamping mechanism and a welding mechanism. During production, the first welding device welds the first sections of the N resistor discs and the bimetal piece together; the shaping device bends the second sections of the N resistor discs to form a folding part and a tilting part; under the action that the positioning mechanism abuts against the ends of the tilting parts of the N resistor discs and the clamping mechanism clamps the tilting parts of the N resistor discs, the welding mechanism welds the tilting parts of the N resistor discs together; and the pressing device tightly presses the buckle on the second mica sheet, and coats the second mica sheet on the bimetal piece, the resistor disc and other components, so as to complete the assembly of the thermal element component.

Description

Technical Field

[0001] The invention relates to the field of automation technology, and in particular to an assembly device for a thermal element assembly. Background Art

[0002] The thermal element assembly is usually composed of mica sheets, resistors, and bimetallic parts. As an important component of low-voltage electrical appliances, it can realize overload protection of low-voltage electrical appliances. Among them, the resistor of the thermal element assembly is usually composed of multiple resistor sheets stacked together.

[0003] In the related art, thermal element assemblies are usually completed by manual assembly, which has low production efficiency. In order to prevent the ends of multiple resistors from loosening, the ends of multiple resistors are usually welded together by manual welding. However, since the ends of multiple resistors are loose after shaping, the welding efficiency and consistency are low, and the defective rate is high. Summary of the invention

[0004] The object of the present invention is to provide an assembly device for a thermal element assembly, which effectively ensures the welding efficiency and consistency of resistor sheets and improves production efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Provided is an assembly device for a thermal element assembly, comprising:

[0007] A first welding device, used for welding the first sections of N resistors and the bimetallic member together, N ≥ 2;

[0008] A shaping device, used for bending the second sections of the N resistor sheets to form a folded portion and a raised portion, and clamping the first mica sheet between the first sections and the folded portion of the N resistor sheets;

[0009] a second welding device, wherein the shaping device is disposed between the first welding device and the second welding device, the second welding device comprises a positioning mechanism, a clamping mechanism and a welding mechanism, the clamping mechanism is used to clamp the N warping portions of the resistor sheets, and the positioning mechanism can abut against the ends of the warping portions of the N resistor sheets clamped by the clamping mechanism, and the welding mechanism is used to weld the warping portions of the N resistor sheets clamped by the clamping mechanism together;

[0010] The pressing device, the second welding device is arranged between the shaping device and the pressing device, the pressing device is used to press the buckle onto the second mica sheet, and cover the second mica sheet on the bimetallic part, the third mica sheet, the first section of the N resistor sheets, the first mica sheet and the folded part of the N resistor sheets stacked in sequence to form a thermal element assembly.

[0011] Optionally, the resistor sheet is straight before bending. The bimetal member, the third mica sheet, N resistor sheets, and the first mica sheet are stacked in sequence, and the first mica sheet is disposed on the first section of the resistor sheet. The shaping device includes:

[0012] A pressing component, including a pressing member and a first pressing driving member connected to the pressing member. The pressing member has a thin plate portion, and the first pressing driving member is used to drive the pressing member to move in the vertical direction and press the thin plate portion against the first mica sheet;

[0013] A tilting component, including a tilting guiding member and a bending driving member connected to the tilting guiding member. The tilting guiding member has a limiting inclined surface, and the bending driving member is used to drive the tilting guiding member to press against the first mica sheet in the vertical direction;

[0014] A rolling pressing component, including a pressing wheel, a first rolling pressing driving member, and a second rolling pressing driving member connected in sequence. The first rolling pressing driving member is used to drive the pressing wheel to move to the side of the resistor sheet facing the third mica sheet. The second rolling pressing driving member is used to drive the pressing wheel to push the second sections of N resistor sheets to fold towards the first section, and bend the second sections of N resistor sheets under the limitation of the limiting inclined surface to form the folding portion and the tilting portion.

[0015] Optionally, the shaping device further includes a first shaping mechanism, which is used to bend the second sections of N resistor sheets so that the resistor sheets are in an angular shape.

[0016] Optionally, the first shaping mechanism includes:

[0017] A pressing component, including a pressing driving member and a pressing member connected to the pressing driving member. The pressing driving member is used to drive the pressing member to press the second section of the resistor sheet in the vertical direction;

[0018] A first shaping component, including a first shaping driving member and a first top block connected to the first shaping driving member. The first shaping driving member is used to drive the first top block to push the surface of the second section of the resistor sheet away from the pressing member;

[0019] A second shaping component, including a second shaping driving member and a second top block connected to the second shaping driving member. The second top block is located between the pressing member and the first top block, and the second shaping driving member is used to drive the second top block to push the surface of the second section of the resistor sheet away from the pressing member.

[0020] Optionally, the positioning mechanism includes:

[0021] A positioning member, including a shaft rod and a positioning portion;

[0022] A first support member, wherein the first support member is provided with a positioning hole extending along a first direction, and the shaft rod is rotatably inserted into the positioning hole;

[0023] A first locking member, disposed on the first supporting member, the first locking member being used to fix the shaft rod in the positioning hole;

[0024] a first positioning driving member connected to the first supporting member, the first positioning driving member being used to drive the positioning member to move along the second direction and to press the positioning portion against the end of the tilting portion;

[0025] The second positioning driving member is connected to the first positioning driving member, and is used to drive the positioning member to move along the first direction, and to make the positioning part cover the ends of the raised parts of the N resistor sheets along the second direction.

[0026] Optionally, the clamping mechanism comprises:

[0027] Clamping seat;

[0028] An intermediate piece is disposed on the clamping seat, and the position of the intermediate piece relative to the clamping seat along the third direction is adjustable;

[0029] An articulated seat, articulated with the intermediate member, and a rotation axis of the articulated seat is parallel to the first direction;

[0030] A second locking member, connected to both the clamping seat and the middle member, the second locking member being used to fix the middle member to the clamping seat;

[0031] a third locking member connected to both the middle member and the hinge seat, the third locking member being used to fix the hinge seat to the middle member;

[0032] The clamping assembly includes a first clamping drive member, a second clamping drive member connected to the first clamping drive member, and two clamping blocks connected to the second clamping drive member, wherein the first clamping drive member is arranged on the hinge seat, the first clamping drive member is used to drive the two clamping blocks to move along the first direction, and the second clamping drive member is used to drive the two clamping blocks to clamp the raised parts of N resistor sheets.

[0033] Optionally, the assembly equipment of the thermal element assembly also includes a workbench, the first welding device, the shaping device, the second welding device and the pressing device are all arranged on the workbench, and the positions of the positioning mechanism and the clamping mechanism relative to the workbench along the fourth direction are adjustable.

[0034] Optionally, the welding mechanism comprises:

[0035] Welding bracket;

[0036] Welding seat; rotatably connected to the welding bracket, and the rotation axis of the welding seat is parallel to the first direction;

[0037] Fourth locking member, provided on the welding seat, and the fourth locking member is used to fix the welding seat on the welding bracket;

[0038] Welding assembly, including a first welding driving member, a second welding driving member connected to the first welding driving member, and two electrode clamping blocks connected to the second welding driving member. The first welding driving member is provided on the welding seat. The first welding driving member is used to drive the two electrode clamping blocks to move linearly, and the extension line of the moving track of the electrode clamping block is perpendicular to and intersects the rotation axis of the welding seat. The second welding driving member is used to drive the two electrode clamping blocks to clamp and weld the upturned parts of N resistor sheets.

[0039] Optionally, the welding mechanism further includes a guide wheel. An arc-shaped chute is provided on the welding bracket. The guide wheel is arranged in the arc-shaped chute, and the fourth locking member passes through the welding seat and the guide wheel and can abut against the bottom of the arc-shaped chute. The fourth locking member is threadedly connected to the welding seat.

[0040] Optionally, the length direction of the second mica sheet is perpendicular to the length direction of the bimetal member, and both ends of the second mica sheet protrude from the bimetal member;

[0041] The assembling device of the heating element assembly further includes a pressing device arranged between the shaping device and the second welding device. The pressing device is used to wind the second mica sheet around the bimetal member, the third mica sheet, the first sections of N resistor sheets, the first mica sheet, and the folded parts of N resistor sheets.

[0042] Optionally, the assembling device of the heating element assembly further includes:

[0043] Carrier, including a carrier table and a pressing assembly. A first placement groove is provided on the carrier table. The first placement groove is used to place the second mica sheet, the bimetal member, the third mica sheet, the N resistor sheets, and the first mica sheet. The pressing assembly includes a pressing member, a pressing link, and a pressing elastic member. The pressing member is hinged to the carrier table. The pressing member includes a pressing part. The first end of the pressing link is connected to the pressing member. The pressing elastic member is arranged between the carrier table and the pressing member. The pressing elastic member makes the pressing part always tend to rotate towards the first placement groove;

[0044] A conveying device, on which a carrier stage is arranged. Along the conveying direction of the conveying device, the first welding device, the shaping device, the second welding device and the pressing device are arranged in sequence;

[0045] Pressing driving parts are respectively arranged at the stations where the shaping device and the pressing device are located. The pressing driving parts are detachably connected to the second ends of the pressing connecting rods, and the pressing driving parts are used to drive the pressing connecting rods to drive the pressing parts to rotate.

[0046] Optionally, the assembling equipment of the heating element assembly further includes a resistor feeding device, which includes a first transplanting mechanism and a first tray support, a first feeding mechanism, a first cutting mechanism, an alignment mechanism, and a pre-welding mechanism arranged in sequence;

[0047] The first tray support is used for placing resistor trays;

[0048] The first feeding mechanism is used to convey the resistor tape of the resistor tray to the alignment mechanism;

[0049] The first cutting mechanism is used to cut the resistor tape into resistor chips, and the cut resistor chips fall onto the alignment mechanism;

[0050] N resistor chips can be stacked on the alignment mechanism, and the alignment mechanism is used to align N resistor chips;

[0051] The pre-welding mechanism is used to weld the first sections of N resistor chips together;

[0052] The first transplanting mechanism is used to stack the N resistor chips welded by the pre-welding mechanism onto the third mica sheet.

[0053] Beneficial effects: During production, the assembly equipment of the thermal element assembly provided by the present invention firstly welds the first sections of the N resistor sheets and the bimetallic member together by a first welding device, and bends the second sections of the N resistor sheets by a shaping device to form a folded portion and a raised portion. At this time, the first mica sheet is clamped between the first sections and the folded portion of the N resistor sheets, and the raised portion is loosened due to the bending of the N resistor sheets. Then, the clamping mechanism clamps the raised portions of the N resistor sheets, and when the positioning mechanism abuts against the ends of the raised portions of the N resistor sheets, The ends of the raised portions of the N resistors are aligned and tightly fitted. At this time, the raised portions of the N resistors are welded together by a welding mechanism to complete the welding of the N resistors, effectively ensuring the welding efficiency and consistency of the resistors; finally, the buckle is pressed onto the second mica sheet by a pressing device, and the second mica sheet is coated on the bimetallic piece, the third mica sheet, the first section of the N resistors, the first mica sheet and the folded portion of the N resistors to complete the assembly of the thermal element assembly, effectively improving production efficiency and improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a structural schematic diagram of an assembly device for a thermal element assembly provided by the present invention;

[0055] Figure 2 is a schematic structural diagram of a second welding device provided by the present invention;

[0056] Figure 3 is a schematic structural diagram of a thermal element assembly provided by the present invention;

[0057] Figure 4 It is a structural schematic diagram of the carrier provided by the present invention;

[0058] Figure 5 is a structural schematic diagram of a first welding device provided by the present invention;

[0059] Figure 6 is a structural schematic diagram of a second shaping mechanism provided by the present invention;

[0060] Figure 7 It is a schematic diagram of the structure in which the warping guide provided by the present invention is pressed against the first mica sheet;

[0061] Figure 8 is a structural schematic diagram of a first shaping mechanism provided by the present invention;

[0062] Figure 9 It is a structural schematic diagram of a first shaping mechanism provided by the present invention;

[0063] Figure 10 is a structural schematic diagram of a second shaping mechanism provided by the present invention;

[0064] Figure 11It is a structural schematic diagram of the correction mechanism provided by the present invention;

[0065] Figure 12 It is a structural schematic diagram of the positioning mechanism provided by the present invention;

[0066] Figure 13 It is a structural schematic diagram of the clamping mechanism provided by the present invention;

[0067] Figure 14 It is a structural schematic diagram of the welding mechanism provided by the present invention;

[0068] Figure 15 It is a structural schematic diagram of the pressing device provided by the present invention;

[0069] Figure 16 It is a partial structural schematic diagram of the pressing device provided by the present invention;

[0070] Figure 17 is a structural schematic diagram of a first pressing mechanism provided by the present invention;

[0071] Figure 18 It is a partial structural schematic diagram of the pressing and distributing component provided by the present invention;

[0072] Figure 19 is a structural schematic diagram of a second pressing mechanism provided by the present invention;

[0073] Figure 20 It is a structural schematic diagram of the material moving device provided by the present invention;

[0074] Figure 21 It is a structural schematic diagram of the resistor feeding device provided by the present invention;

[0075] Figure 22 It is a partial structural schematic diagram of the resistor feeding device provided by the present invention;

[0076] Figure 23 It is a structural schematic diagram of a first feeding device provided by the present invention;

[0077] Figure 24 It is a structural schematic diagram of a second feeding device provided by the present invention;

[0078] Figure 25 It is a structural schematic diagram of the third feeding device provided by the present invention.

[0079] In the figure:

[0080] 10. second mica sheet; 20. bimetallic piece; 21. notch; 30. third mica sheet; 40. resistor sheet; 41. first section; 42. second section; 43. raised portion; 44. folded portion; 50. first mica sheet; 60. buckle;

[0081] 100, Vehicle; 110, Carriage; 111, First Placement Groove; 112, Second Placement Groove; 113, Perforation; 120, Pressing Assembly; 121, Pressing Member; 1211, Pressing Portion; 1212, Hinge Axis; 1213, Round Rod; 122, Pressing Link; 123, Pressing Elastic Member;

[0082] 200, First Welding Device; 210, Welding Fixing Base; 220, Upper Welding Assembly; 221, Upper Slide Block; 222, Upper Welding Head; 223, First Pre - pressing Elastic Member; 224, Second Pre - pressing Elastic Member; 230, Lower Welding Assembly; 231, Lower Slide Block; 232, Lower Welding Head; 233, Third Cylindrical Member; 241, Linking Member; 2411, First Linking Plate; 2412, Second Linking Plate; 242, T - shaped Rod; 243, Buffer Elastic Member; 244, Linking Rod; 2441, First Cylindrical Member; 2442, Rotating Shaft; 2443, Second Cylindrical Member; 245, Sliding Member; 2451, Linking Groove; 2452, Linking Surface; 246, Welding Clamping Driving Member;

[0083] 300, Shaping Device; 301, First Shaping Mechanism; 302, Second Shaping Mechanism; 310, Pressing - covering Assembly; 311, Pressing - covering Member; 3111, Thin Plate Portion; 312, First Pressing - covering Driving Member; 313, Second Pressing - covering Driving Member; 314, Third Pressing - covering Driving Member; 320, Warping - up Assembly; 321, Warping - up Guide Member; 3211, Limiting Inclined Plane; 322, Bending Driving Member; 330, Roll - pressing Assembly; 331, Pressing Wheel; 332, First Roll - pressing Driving Member; 333, Second Roll - pressing Driving Member; 340, Pressing - against Assembly; 341, Pressing - against Driving Member; 342, Pressing - against Member; 350, First Shaping Assembly; 351, First Shaping Driving Member; 352, First Jacking Block; 360, Second Shaping Assembly; 361, Second Shaping Driving Member; 362, Second Jacking Block; 370, First Shaping - setting Mechanism; 371, First Shaping - setting Driving Member; 372, Second Shaping - setting Driving Member; 373, First Shaping - setting Member; 374, Third Shaping - setting Driving Member; 375, Second Shaping - setting Member; 380, Second Shaping - setting Mechanism; 381, Shaping - setting Bracket; 382, Upper Shaping - setting Driving Member; 383, Upper Shaping - setting Block; 384, Lower Shaping - setting Block; 385, Shaping - setting Transmission Member; 386, Lower Shaping - setting Driving Member; 387, Shaping - setting Elastic Member; 390, Correction Mechanism; 391, First Correction Driving Member; 392, Second Correction Driving Member; 393, First Orthopedic Block; 394, Second Orthopedic Block;

[0084] 400, second welding device; 410, positioning mechanism; 411, positioning member; 4111, shaft; 4112, positioning portion; 412, first support member; 4121, positioning hole; 4122, positioning clamping arm; 413, first positioning driving member; 414, second positioning driving member; 415, second support member; 416, third support member; 420, clamping mechanism; 421, clamping seat; 4211, first long hole; 422, middle member; 423 , hinged seat; 4231, fan ring hole; 424, clamping assembly; 4241, first clamping drive; 4242, second clamping drive; 4243, clamping block; 430, welding mechanism; 431, welding bracket; 4311, arc-shaped slide; 432, welding seat; 433, fourth locking member; 4341, first welding drive; 4342, second welding drive; 4343, electrode clamp; 435, guide wheel; 436, arc-shaped slide rail;

[0085] 500, pressing device; 501, first pressing mechanism; 502, second pressing mechanism; 511, first pressing driving member; 512, pressing seat; 5121, pressing rod; 513, pressing lever; 514, second pressing driving member; 521, pressing feed seat; 5211, feeding hole; 522, first straight vibration feeder; 523, first pressing feed rod; 524, first pressing feed driving member; 525, second pressing feed driving member moving part; 530, pressing material distribution component; 531, pressing material distribution seat; 532, first pressing material feeding part; 533, second pressing material feeding part; 534, second pressing material distribution driving part; 535, first pressing material distribution driving part; 540, pressing bracket; 551, third pressing driving part; 552, first pressing block; 561, second pressing block; 562, pressing transmission part; 563, fourth pressing driving part; 564, pressing elastic part;

[0086] 610, workbench; 620, conveying device; 630, pressing driving member; 631, docking member; 640, supporting driving member; 641, cushion block; 650, first detection device; 660, second detection device; 670, unloading device;

[0087] 700, clamping device; 710, first clamping bracket; 721, first clamping drive; 722, first clamping member; 7221, clamping rod; 731, second clamping drive; 732, clamping guide; 7321, clamping plate; 733, second clamping member; 734, clamping elastic member; 741, third clamping drive; 742, fourth clamping drive; 743, first push member; 7431, first push plate; 751, fifth clamping drive; 752, second push member; 7521, second push plate; 761, sixth clamping drive; 762, third clamping member; 7621, first clamping part; 7622, second clamping part; 7623, third clamping part;

[0088] 800, resistor feeding device; 810, first transplanting mechanism; 820, first tray support; 821, tray driving member; 830, first feeding mechanism; 840, first cutting mechanism; 841, cutting support; 842, first cutting driving member; 843, eccentric shaft; 844, cutting connecting rod; 845, cutting sliding block; 846, first cutting knife; 850, alignment mechanism; 851, alignment table; 8511, first alignment groove; 8 52, first pusher; 853, first alignment drive; 854, alignment stopper; 855, second alignment drive; 856, second pusher; 860, pre-welding mechanism; 870, welding table; 871, second alignment slot; 872, pre-welding placement slot; 881, third alignment drive; 882, third pusher; 883, fourth alignment drive; 884, fourth pusher; 891, pre-pressing drive; 892, pre-pressing member;

[0089] 910. First loading device; 911. Second tray support; 9111. Fixed pulley; 912. Feeding support; 9131. First feeding driving part; 9132. Second feeding driving part; 9133. Feeding pressing block; 9141. Pressing driving part; 9142. Pressing part; 9151. Second cutting driving part; 9152. Second cutting tool; 9161. First loading driving part; 9162. Second loading driving part; 9163. First loading suction cup; 920. Second loading device; 921. Second linear vibrating feeder; 922. Loading table; 923. Blocking driving part; 924. Blocking part; 925. Third loading driving part; 926. Fourth loading driving part; 927. Steering driving structure; 928. Loading jaw; 930. Third loading device; 9311. First conveyor belt; 9312. Second conveyor belt; 9313. Transition table; 9314. First transfer driving part; 9315. First push plate; 9316. Second transfer driving part; 9317. Second push plate; 932. Carrier; 9331. Intermediate support; 9332. Clamping and positioning driving part; 9333. Positioning clamping block; 9341. Fifth loading driving part; 9342. Sixth loading driving part; 9343. Seventh loading driving part; 9344. Second loading suction cup; 9345. Third loading suction cup; 9346. Eighth loading driving part; 940. Material transfer device; 941. First material transfer driving part; 942. Second material transfer driving part; 943. Material transfer suction cup. Detailed implementation manners

[0090] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0091] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0092] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0093] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0094] Reference Figures 1 to 20 As shown, this embodiment provides an assembly device for a thermal element assembly, and the assembly device for the thermal element assembly includes a first welding device 200, a shaping device 300, a second welding device 400, and a pressing device 500. Among them, the shaping device 300 is arranged between the first welding device 200 and the second welding device 400, and the second welding device 400 is arranged between the shaping device 300 and the pressing device 500, that is, the first welding device 200, the shaping device 300, the second welding device 400, and the pressing device 500 are arranged in sequence.

[0095] Specifically, the first welding device 200 is used to weld the first sections 41 of N resistor sheets 40 and the bimetallic member 20 together, where N ≥ 2; the shaping device 300 is used to bend the second sections 42 of the N resistor sheets 40 to form a folded portion 44 and a raised portion 43, and clamp the first mica sheet 50 between the first sections 41 and the folded portion 44 of the N resistor sheets 40; the second welding device 400 includes a positioning mechanism 410, a clamping mechanism 420 and a welding mechanism 430, wherein the clamping mechanism 420 is used to clamp the raised portion 43 of the N resistor sheets 40, and The positioning mechanism 410 can be abutted against the ends of the raised portions 43 of the N resistor sheets 40 clamped by the clamping mechanism 420, and the welding mechanism 430 is used to weld together the raised portions 43 of the N resistor sheets 40 clamped by the clamping mechanism 420; the pressing device 500 is used to press the buckle 60 onto the second mica sheet 10, and to cover the second mica sheet 10 on the bimetallic piece 20, the third mica sheet 30, the first section 41 of the N resistor sheets 40, the first mica sheet 50 and the folded portions 44 of the N resistor sheets 40 stacked in sequence to form a thermal element assembly.

[0096] During production, first, the first sections 41 of the N resistor sheets 40 and the bimetallic member 20 are welded together by the first welding device 200, and the second sections 42 of the N resistor sheets 40 are bent by the shaping device 300 to form the folded portion 44 and the raised portion 43. At this time, the first mica sheet 50 is clamped between the first sections 41 and the folded portion 44 of the N resistor sheets 40, and the raised portion 43 is loosened due to the bending of the N resistor sheets 40; then, the clamping mechanism 420 clamps the raised portions 43 of the N resistor sheets 40, and when the positioning mechanism 410 abuts against the ends of the raised portions 43 of the N resistor sheets 40, the N resistor sheets 40 are fixed. The ends of the raised portions 43 are aligned and tightly fitted, and at this time, the raised portions 43 of the N resistor sheets 40 are welded together by the welding mechanism 430 to complete the welding of the N resistor sheets 40, effectively ensuring the welding efficiency and consistency of the resistor sheets 40; finally, the buckle 60 is pressed onto the second mica sheet 10 by the pressing device 500, and the second mica sheet 10 is covered on the bimetallic piece 20, the third mica sheet 30, the first section 41 of the N resistor sheets 40, the first mica sheet 50 and the folded portion 44 of the N resistor sheets 40 to complete the assembly of the thermal element assembly, effectively improving the production efficiency and the yield rate.

[0097] Exemplarily, the first welding device 200 is used to weld the ends of the first sections 41 of the N resistor sheets 40 and the first end of the bimetallic member 20 together.

[0098] Exemplarily, the welding mechanism 430 is used to weld the ends of the raised portions 43 of the N resistor sheets 40 together.

[0099] It is understandable that the resistor sheet 40 is in a straight strip shape before being bent, the bimetallic member 20 , the third mica sheet 30 , N resistor sheets 40 and the first mica sheet 50 are stacked in sequence, and the first mica sheet 50 is disposed on the first section 41 of the resistor sheet 40 .

[0100] In this embodiment, refer to Figure 1 , Figure 3 and Figure 4 As shown, the assembly equipment of the thermal element assembly also includes a carrier 100, on which the components to be stacked in sequence can be stacked, specifically, the second mica sheet 10, the bimetallic member 20, the third mica sheet 30, N straight strip-shaped resistor sheets 40 and the first mica sheet 50 can be stacked in sequence on the carrier 100. It can be understood that the first welding device 200, the shaping device 300, the second welding device 400 and the pressing device 500 all operate on the components to be stacked on the carrier 100.

[0101] Specifically, the vehicle 100 includes a stage 110 and a pressing assembly 120. A first placement groove 111 is provided on the stage 110, and the first placement groove 111 is used for placing a second mica sheet 10, a bimetal member 20, a third mica sheet 30, N resistor sheets 40, and a first mica sheet 50. The pressing assembly 120 includes a pressing member 121, a pressing link 122, and a pressing elastic member 123. The pressing member 121 is hinged to the stage 110, and the pressing member 121 includes a pressing portion 1211. The first end of the pressing link 122 is connected to the pressing member 121. The pressing elastic member 123 is disposed between the stage 110 and the pressing member 121, and the pressing elastic member 123 causes the pressing portion 1211 to always have a tendency to rotate toward the first placement groove 111, so as to press all the components to be assembled tightly in the first placement groove 111, prevent the components to be assembled from detaching from the first placement groove 111, and position the components to be assembled, effectively ensuring the welding quality of the first welding device 200 and the second welding device 400. It can be understood that when the shaping device 300 and the pressing device 500 are operating, the second end of the pressing link 122 can be pulled to make the pressing member 121 give way to the first placement groove 111, avoiding interference of the pressing member 121 with the operation of the shaping device 300 and the pressing device 500.

[0102] Exemplarily, the pressing elastic member 123 can be a spring.

[0103] Exemplarily, the pressing member 121 has a pressing portion 1211, and the pressing member 121 presses the components to be assembled through the pressing portion 1211. Among them, the pressing portion 1211 is in the shape of a straight rod to increase the contact area with the components to be assembled, prevent stress concentration, and stably press the components to be assembled in the first placement groove 111.

[0104] Exemplarily, the pressing member 121 is hinged to the stage 110 through a hinge shaft 1212.

[0105] Exemplarily, the pressing member 121 has a round rod 1213. A transmission groove is provided at the first end of the pressing link 122, and the round rod 1213 is located in the transmission groove. By pulling the second end of the pressing link 122, the groove wall of the transmission groove can push against the round rod 1213, thereby making the pressing member 121 give way to the first placement groove 111.

[0106] In a feasible implementation manner, the assembly device of the heating element assembly further includes a pressing driving member 630. The pressing driving member 630 is connected to the second end of the pressing link 122, and the pressing driving member 630 is used to drive the pressing link 122 to drive the pressing member 121 to rotate, so as to give way to the first placement groove 111.

[0107] Exemplarily, the pressing driving member 630 can be a telescopic driving member, such as a linear cylinder.

[0108] In a feasible implementation, the assembly device of the thermal element assembly further includes a conveying device 620. A carrier 110 is arranged on the conveying device 620. Along the conveying direction of the conveying device 620, a first welding device 200, a shaping device 300, a second welding device 400, and a pressing device 500 are arranged in sequence to avoid interference between the devices. Wherein, pressing driving members 630 are respectively arranged at the workstations where the shaping device 300 and the pressing device 500 are located, and the pressing driving members 630 are detachably connected to the second ends of the pressing link rods 122.

[0109] Exemplarily, a plurality of carriers 100 are arranged at intervals along the conveying direction of the conveying device 620 to improve production efficiency.

[0110] Exemplarily, the pressing driving member 630 is connected with a docking member 631, and the pressing driving member 630 is detachably connected to the second end of the pressing link rod 122 through the docking member 631. Specifically, a boss is provided at the second end of the pressing link rod 122. The docking member 631 includes two relatively arranged L-shaped clamping arms. When the carrier 110 moves to the shaping device 300 or the pressing device 500, the boss is located between the two L-shaped clamping arms and forms a vertical limiting constraint, so that the pressing driving member 630 can drive the pressing link rod 122 to drive the pressing member 121 to give way to the first placement groove 111. Wherein, both the pressing driving member 630 and the docking member 631 can be located below the carrier 110.

[0111] Exemplarily, the conveying device 620 can be an annular conveying line to ensure the compact structure of the assembly device of the thermal element assembly.

[0112] In this embodiment, referring to Figure 5 As shown, the first welding device 200 includes a welding fixed seat 210, an upper welding assembly 220, an upper welding assembly 220, and a welding driving assembly. Wherein, the upper welding assembly 220 includes an upper slider 221 slidably connected to the welding fixed seat 210 and an upper welding head 222 arranged on the upper slider 221; the lower welding assembly 230 includes a lower slider 231 slidably connected to the welding fixed seat 210 and a lower welding head 232 arranged on the lower slider 231; the welding driving assembly is connected to both the upper slider 221 and the lower slider 231, and the welding driving assembly is used to drive the upper welding head 222 and the lower welding head 232 to clamp the first section 41 of the bimetal piece 20 and N resistor sheets 40, so as to weld the first section 41 of the N resistor sheets 40 and the bimetal piece 20 together. In this embodiment, the first welding device 200 completes the welding operation through the driving of a welding driving assembly, which is stable and reliable.

[0113] In a feasible implementation manner, the welding driving assembly includes a linkage member 241, a T-shaped rod 242, a buffer elastic member 243, a linkage rod 244, a sliding member 245, and a welding clamping driving member 246. Among them, the linkage member 241 is slidably connected to the welding fixing base 210. The linkage member 241 is provided with a first linkage plate 2411 and a second linkage plate 2412. The second linkage plate 2412 is provided with a first guiding hole; the rod portion of the T-shaped rod 242 is fixedly connected to the first linkage plate 2411. The upper slider 221 is provided with a T-shaped groove, and the T-shaped head of the T-shaped rod 242 is inserted into the T-shaped groove; one end of the buffer elastic member 243 abuts against the first linkage plate 2411, and the other end abuts against the upper slider 221; the linkage rod 244 is sequentially provided with a first cylindrical member 2441, a rotating shaft 2442, and a second cylindrical member 2443 along the extending direction. The first cylindrical member 2441 passes through the first guiding hole, and the rotating shaft 2442 is hinged to the welding fixing base 210; the sliding member 245 is slidably connected to the welding fixing base 210. The sliding member 245 is arranged on the side of the lower slider 231 away from the upper slider 221. The sliding member 245 is provided with a linkage groove 2451 and a linkage surface 2452. The second cylindrical member 2443 passes through the linkage groove 2451. The lower slider 231 is provided with a third cylindrical member 233. The third cylindrical member 233 abuts against the first linkage surface 2452. The welding clamping driving member 246 is connected to the linkage member 241. Exemplarily, when the first welding device 200 operates, the welding clamping driving member 246 drives the linkage member 241 to move downward, so that the first linkage plate 2411 pushes the upper slider 221 to move downward through the buffer elastic member 243, and the second linkage plate 2412 drives the linkage rod 244 to rotate through the first cylindrical member 2441. The linkage rod 244 pushes the sliding member 245 to translate through the second cylindrical member 2443. The linkage surface 2452 pushes the third cylindrical member 233 to move upward, that is, drives the lower slider 231 to move upward, thereby realizing the clamping of the upper welding head 222 and the lower welding head 232 on the first section 41 of the bimetal member 20 and N resistor sheets 40, which is stable and reliable, and has a compact structure.

[0114] Exemplarily, the buffer elastic member 243 can be set as a spring.

[0115] Exemplarily, the welding clamping driving member 246 can be set as a telescopic driving member, such as a linear cylinder.

[0116] Exemplarily, the first cylindrical member 2441, the second cylindrical member 2443, and the third cylindrical member 233 can all be set as rolling structures such as rollers and bearings.

[0117] In a feasible implementation manner, the linkage surface 2452 has a first surface, a second surface, and a third surface connected in sequence. The first surface and the third surface are arranged in parallel, and the second surface is set as an inclined surface. Wherein, when the third cylindrical member 233 abuts against the first surface, the lower welding head 232 is separated from the bimetal member 20; when the third cylindrical member 233 abuts against the third surface, the lower welding head 232 and the upper welding head 222 clamp the bimetal member 20 and the first section 41 of the N resistor sheets 40.

[0118] In a feasible implementation manner, the first welding device 200 further includes a first preloading elastic member 223 disposed on the upper slider 221. The first preloading elastic member 223 first abuts against the first mica sheet 50, and then the upper welding head 222 abuts against the first section 41 of the resistor sheet 40 to prevent the bimetal member 20, the resistor sheet 40, the third mica sheet 30, and the first mica sheet 50 from being displaced and warped due to impact when the lower welding head 232 and the upper welding head 222 clamp the bimetal member 20 and the first section 41 of the N resistor sheets 40.

[0119] Exemplarily, the first preloading elastic member 223 can be set as a telescopic spring positioning pin.

[0120] In a feasible implementation manner, the first welding device 200 further includes a second preloading elastic member 224 disposed on the upper slider 221. The second preloading elastic member 224 first abuts against the pressing member 121, and then the upper welding head 222 abuts against the first section 41 of the resistor sheet 40 to prevent the bimetal member 20, the resistor sheet 40, the third mica sheet 30, and the first mica sheet 50 from being displaced and warped due to impact when the lower welding head 232 and the upper welding head 222 clamp the bimetal member 20 and the first section 41 of the N resistor sheets 40.

[0121] Exemplarily, the second preloading elastic member 224 can be set as a rectangular spring.

[0122] In this embodiment, referring to Figure 1 、 Figure 6 and Figure 7 as shown, the shaping device 300 includes a pressing component 310, a warping component 320, and a rolling component 330.

[0123] Specifically, the pressing component 310 includes a pressing member 311 and a first pressing driving member 312 connected to the pressing member 311. The pressing member 311 has a thin plate portion 3111. The first pressing driving member 312 is used to drive the pressing member 311 to move in the vertical direction and press the thin plate portion 3111 against the first mica sheet 50. The tilting component 320 includes a tilting guiding member 321 and a bending driving member 322 connected to the tilting guiding member 321. The tilting guiding member 321 has a limiting inclined surface 3211. The bending driving member 322 is used to drive the tilting guiding member 321 to press against the first mica sheet 50 in the vertical direction. The rolling pressing component 330 includes a pressing wheel 331, a first rolling pressing driving member 332, and a second rolling pressing driving member 333 connected in sequence. The first rolling pressing driving member 332 is used to drive the pressing wheel 331 to move to the side of the resistor sheet 40 facing the third mica sheet 30. The second rolling pressing driving member 333 is used to drive the pressing wheel 331 to push the second section 42 of the N resistor sheets 40 to fold towards the first section 41, and bend the second section 42 of the N resistor sheets 40 under the limitation of the limiting inclined surface 3211 to form a folding portion 44 and a tilting portion 43.

[0124] Exemplarily, the specific steps of bending the N resistor sheets 40 are as follows: First, control the first pressing driving member 312 to drive the pressing member 311 to move in the vertical direction and press the thin plate portion 3111 against the first mica sheet 50, and control the bending driving member 322 to drive the tilting guiding member 321 to press against the first mica sheet 50 in the vertical direction. Then, control the first rolling pressing driving member 332 to drive the pressing wheel 331 to move to the side of the resistor sheet 40 facing the third mica sheet 30, and control the second rolling pressing driving member 333 to drive the pressing wheel 331 to move towards the tilting guiding member 321. During this process, the second section 42 of the N resistor sheets 40 is pushed by the pressing wheel 331 to fold towards the first section 41 and form a first crease at the first mica sheet 50, and the pressing wheel 331 will press the N resistor sheets 40 against the limiting inclined surface 3211, so that the second section 42 of the N resistor sheets 40 is bent to form a folding portion 44 and a tilting portion 43, and the first mica sheet 50 is clamped between the first section 41 and the folding portion 44 of the N resistor sheets 40, which is convenient for the bending and forming of the N resistor sheets 40. It can be understood that the first crease is formed between the first section 41 and the folding portion 44 of the folding portion 44.

[0125] Exemplarily, the first pressing driving member 312 can be set as a telescopic driving member, such as a linear cylinder.

[0126] Exemplarily, the bending driving member 322 can be set as a telescopic driving member, such as a linear cylinder.

[0127] Exemplarily, the first rolling pressing driving member 332 can be set as a telescopic driving member, such as a linear cylinder.

[0128] Exemplarily, the second roll pressing driving member 333 includes, but is not limited to, a linear motor or a motor-driven lead screw slide module.

[0129] In a feasible implementation manner, the pressing component 310 further includes a second pressing driving member 313. The second pressing driving member 313 is disposed between the first pressing driving member 312 and the pressing member 311. The second pressing driving member 313 is used to drive the pressing member 311 to move along the first horizontal direction, so that the projection of the thin plate portion 3111 in the vertical direction is located on or separated from the first mica sheet 50. It can be understood that when the second roll pressing driving member 333 drives the pressing wheel 331 to move towards the tilting guide member 321 and resets the first roll pressing driving member 332 and the second roll pressing driving member 333, the second pressing driving member 313 can be controlled to drive the pressing member 311 to move along the first horizontal direction, so as to extract the thin plate portion 3111 between the first mica sheet 50 and the folded portion 44 of the resistor sheet 40.

[0130] Exemplarily, the second pressing driving member 313 can be set as a telescopic driving member, such as a linear cylinder.

[0131] Exemplarily, the second roll pressing driving member 333 is used to drive the pressing wheel 331 to move along the second horizontal direction. Among them, the vertical direction, the first horizontal direction, and the second horizontal direction are perpendicular to each other.

[0132] In a feasible implementation manner, the pressing component 310 further includes a third pressing driving member 314. The first pressing driving member 312 is disposed on the third pressing driving member 314. The third pressing driving member 314 is used to drive the pressing member 311 to move along the second horizontal direction. It can be understood that when the second segments 42 of the N resistor sheets 40 are pushed by the pressing wheel 331 to be folded towards the first segments 41, the folded portions 44 of the second segments 42 of the N resistor sheets 40 will form a bulge at the thin plate portion 3111. Exemplarily, after the thin plate portion 3111 is extracted between the first mica sheet 50 and the folded portion 44 of the resistor sheet 40, first, reset the first pressing driving member 312, and control the second pressing driving member 313 to drive the pressing member 311 to move along the first horizontal direction until the thin plate portion 3111 is located above the folded portion 44 of the N resistor sheets 40; then, control the first pressing driving member 312 to drive the pressing member 311 to move along the vertical direction, and press the thin plate portion 3111 against the folded portion 44 of the resistor sheet 40 to shape the first crease; finally, control the third pressing driving member 314 to drive the pressing member 311 to move along the second horizontal direction towards the tilting guide member 321, so that the thin plate portion 3111 smooths the bulge on the folded portion 44 of the N resistor sheets 40.

[0133] Exemplarily, the third pressing driving member 314 includes, but is not limited to, a linear motor or a motor-driven lead screw slide module.

[0134] In this embodiment, refer toFigure 1 and Figure 8 As shown in Figure 8 , the shaping device 300 further includes a first shaping mechanism 301. The first shaping mechanism 301 is used to bend the second section 42 of the N resistor sheets 40 so that the resistor sheets 40 are in an angular shape, facilitating the movement of the pressing wheel 331 to the side of the resistor sheet 40 facing the third mica sheet 30, effectively ensuring the bending quality of the resistor sheet 40. It can be understood that the pressing assembly 310, the tilting assembly 320, and the rolling assembly 330 form a second shaping mechanism 302, and the second shaping mechanism 302 is located between the first shaping mechanism 301 and the second welding device 400.

[0135] Exemplarily, a pressing driving member 630 is provided at the station where the second shaping mechanism 302 is located, and the pressing driving member 630 may not be provided at the station where the first shaping mechanism 301 is located. It can be understood that when the second shaping mechanism 302 operates, the pressing driving member 630 at this station is controlled to drive the pressing member 121 to give way to the first placement groove 111; after the second shaping mechanism 302 operates, the pressing driving member 630 at this station is controlled to reset, and the pressing member 121 is pressed against the folded portion 44 of the resistor sheet 40 under the action of the pressing elastic member 123.

[0136] In a feasible implementation manner, the first shaping mechanism 301 includes a pressing component 340, a first shaping component 350, and a second shaping component 360.

[0137] Specifically, the pressing component 340 includes a pressing driving member 341 and a pressing member 342 connected to the pressing driving member 341. The pressing driving member 341 is used to drive the pressing member 342 to press the second section 42 of the resistor sheet 40 in the vertical direction. The first shaping component 350 includes a first shaping driving member 351 and a first top block 352 connected to the first shaping driving member 351. The first shaping driving member 351 is used to drive the first top block 352 to push against the side of the second section 42 of the resistor sheet 40 away from the pressing member 342. The second shaping component 360 includes a second shaping driving member 361 and a second top block 362 connected to the second shaping driving member 361. The second top block 362 is located between the pressing member 342 and the first top block 352, and the second shaping driving member 361 is used to drive the second top block 362 to push against the side of the second section 42 of the resistor sheet 40 away from the pressing member 342. Exemplarily, when the first shaping mechanism 301 operates, first, control the pressing driving member 341 to drive the pressing member 342 to press the second section 42 of the resistor sheet 40 in the vertical direction. Then, control the first shaping driving member 351 to drive the first top block 352 to push against the side of the second section 42 of the resistor sheet 40 away from the pressing member 342, so that the second section 42 of the resistor sheet 40 is bent into a convex arc shape facing the third mica sheet 30. Finally, the second shaping driving member 361 drives the second top block 362 to push against the side of the second section 42 of the resistor sheet 40 away from the pressing member 342, so that the resistor sheet 40 is in an angular shape, and prevent the second section 42 of the resistor sheet 40 from being bent into a convex arc shape facing the first mica sheet 50, reducing the looseness of the second section 42 of the resistor sheet 40, facilitating the movement of the pressing wheel 331 to the side of the resistor sheet 40 facing the third mica sheet 30, and effectively ensuring the bending quality of the resistor sheet 40.

[0138] Exemplarily, the second top block 362 is located between the pressing member 342 and the first top block 352 in the second horizontal direction.

[0139] Exemplarily, the pressing driving member 341 can be set as a telescopic driving member, such as a linear cylinder.

[0140] Exemplarily, the first shaping driving member 351 can be set as a telescopic driving member, such as a linear cylinder.

[0141] Exemplarily, the second shaping driving member 361 can be set as a telescopic driving member, such as a linear cylinder.

[0142] In this embodiment, refer to Figure 1 and Figure 9As shown in the figure, the shaping device 300 further includes a first shaping mechanism 370. The second shaping mechanism 302 is located between the first shaping mechanism 301 and the first shaping mechanism 370. The first shaping mechanism 370 is used to clamp the upturned portions 43 of the N resistor sheets 40 and press the folded portions 44 of the N resistor sheets 40, so as to form a second crease between the folded portions 44 and the upturned portions 43 of the N resistor sheets 40. While being plastic, the looseness of the upturned portions 43 can be reduced, which is convenient for the clamping mechanism 420 to clamp the upturned portions 43 of the N resistor sheets 40.

[0143] Specifically, the first shaping mechanism 370 includes a first shaping driving member 371, a second shaping driving member 372, a first shaping member 373, a third shaping driving member 374, and a second shaping member 375. Among them, the second shaping driving member 372 and the third shaping driving member 374 are both arranged on the first shaping driving member 371. The second shaping driving member 372 is connected to the first shaping member 373, and the third shaping driving member 374 is connected to the second shaping member 375. The first shaping driving member 371 is used to drive the first shaping member 373 and the second shaping member 375 to move along the first horizontal direction. The second shaping driving member 372 is used to drive the first shaping member 373 to press the folded portions 44 of the N resistor sheets 40. The third shaping driving member 374 is used to drive the second shaping member 375 to press the upturned portions 43 of the N resistor sheets 40 onto the first shaping member 373. Exemplarily, when the first shaping mechanism 370 operates, first, control the first shaping driving member 371 to drive the first shaping member 373 and the second shaping member 375 to move along the first horizontal direction so that the first shaping member 373 and the second shaping member 375 are located above the first placement groove 111; then, control the second shaping driving member 372 to drive the first shaping member 373 to press the folded portions 44 of the N resistor sheets 40; finally, control the third shaping driving member 374 to drive the second shaping member 375 to move towards the first shaping member 373 and press the upturned portions 43 of the N resistor sheets 40 onto the first shaping member 373, so as to form a second crease between the folded portions 44 and the upturned portions 43 of the N resistor sheets 40. The transmission is stable and reliable, and the structure is compact.

[0144] Exemplarily, the first shaping driving member 371 can be set as a telescopic driving member, such as a linear cylinder.

[0145] Exemplarily, the second shaping driving member 372 can be set as a telescopic driving member, such as a linear cylinder.

[0146] Exemplarily, the third shaping driving member 374 can be set as a telescopic driving member, such as a linear cylinder.

[0147] In this embodiment, with reference to Figure 1 and Figure 10As shown, the shaping device 300 further includes a second shaping mechanism 380. The first shaping mechanism 370 is located between the second shaping mechanism 302 and the second shaping mechanism 380. The second shaping mechanism 380 is used to clamp the first section 41 and the folded portion 44 of the N resistor sheets 40, so as to shape the folded portion 44 of the resistor sheet 40 and further shape the first crease, thereby ensuring the forming quality of the heating element assembly.

[0148] Specifically, the second shaping mechanism 380 includes a shaping bracket 381, an upper shaping driving member 382, an upper shaping block 383, a lower shaping block 384, a shaping transmission member 385, a lower shaping driving member 386, and a shaping elastic member 387. Among them, the upper shaping driving member 382 and the lower shaping driving member 386 are both disposed on the shaping bracket 381. The upper shaping driving member 382 is connected to the upper shaping block 383. The lower shaping driving member 386, the shaping transmission member 385, and the lower shaping driving member 386 are connected in sequence. The shaping elastic member 387 is disposed between the shaping bracket 381 and the lower shaping block 384.

[0149] Exemplarily, the shaping elastic member 387 can be set as a spring.

[0150] Exemplarily, the upper shaping driving member 382 can be set as a telescopic driving member, such as a linear cylinder.

[0151] Exemplarily, the lower shaping driving member 386 can be set as a telescopic driving member, such as a linear cylinder.

[0152] Specifically, the shaping transmission member 385 has a transmission surface (not shown). A transmission roller (not shown) is provided on the lower shaping block 384. The transmission roller abuts against the transmission surface and is slidably disposed on the shaping bracket 381. It can be understood that the upper shaping driving member 382 is used to drive the upper shaping block 383 to press against the folded portion 44 of the N resistor sheets 40, and the lower shaping driving member 386 is used to drive the lower shaping block 384 to press against the second mica sheet 10. Exemplarily, when the second shaping mechanism 380 operates, first, control the upper shaping driving member 382 to drive the upper shaping block 383 to move downward and press against the folded portion 44 of the N resistor sheets 40; then, control the lower shaping driving member 386 to drive the shaping transmission member 385 to translate. The transmission surface pushes the transmission roller to move upward and drives the lower shaping block 384 to press against the second mica sheet 10. The second mica sheet 10, the bimetallic member 20, and the third mica sheet 30 are sequentially pressed, so that the third mica sheet 30 and the upper shaping block 383 clamp the first section 41 and the folded portion 44 of the N resistor sheets 40, realizing the shaping of the folded portion 44 of the resistor sheet 40 and the further shaping of the first crease. The transmission is stable and reliable, and the structure is compact. Among them, the shape of the transmission surface is the same as that of the linkage surface 2452, and this embodiment will not be elaborated too much.

[0153] In a feasible implementation, to prevent the pressing member 121 from interfering with the upper shaping block 383, a pressing driving member 630 is provided at the station where the second shaping mechanism 380 is located. When the second shaping mechanism 380 operates, the pressing driving member 630 at this station is controlled to drive the pressing member 121 to give way to the first placement groove 111. After the second shaping mechanism 380 finishes operating, the pressing driving member 630 at this station is controlled to reset, and the pressing member 121 is pressed against the folded portion 44 of the resistance sheet 40 under the action of the pressing elastic member 123.

[0154] In this embodiment, referring to Figure 1 and Figure 11 as shown, the shaping device 300 further includes a correction mechanism 390. The correction mechanism 390 is used to align the bimetal member 20, the third mica sheet 30, the first mica sheet 50 and the resistance sheet 40 along the width direction of the resistance sheet 40 to ensure the forming quality of the thermal element assembly.

[0155] Specifically, the correction mechanism 390 includes a first correction driving member 391, a second correction driving member 392, a first orthopedic block 393 and a second orthopedic block 394. Among them, the second correction driving member 392 is provided on the first correction driving member 391, and both the first orthopedic block 393 and the second orthopedic member are provided on the second correction driving member. There are two first orthopedic blocks 393. The first correction driving member 391 is used to drive the first orthopedic block 393 and the second orthopedic block 394 to move downward so that the two first orthopedic blocks 393 are respectively located on both sides of the bimetal member 20 along the width direction, and the second orthopedic block 394 abuts against the folded portion 44 of the resistance sheet 40. The second correction driving member 392 is used to drive the two first orthopedic blocks 393 to clamp the bimetal member 20, the third mica sheet 30, the first mica sheet 50 and the resistance sheet 40 to achieve correction.

[0156] Exemplarily, the first correction driving member 391 can be set as a telescopic driving member, such as a linear cylinder.

[0157] Exemplarily, the second correction driving member 392 can be set as a finger cylinder, and the second orthopedic block 394 can be fixed on the cylinder body of the second correction driving member 392.

[0158] In this embodiment, referring to Figure 2 and Figure 12As shown, the positioning mechanism 410 includes a positioning member 411 , a first supporting member 412 , a first locking member (not shown), a first positioning driving member 413 and a second positioning driving member 414 . Among them, the positioning member 411 includes an axis rod 4111 and a positioning portion 4112; the first support member 412 is provided with a positioning hole 4121 extending along the first direction, and the axis rod 4111 is rotatably inserted into the positioning hole 4121; the first locking member is provided on the first support member 412, and the first locking member is used to fix the axis rod 4111 in the positioning hole 4121; the first positioning driving member 413 is connected to the first support member 412, and the first positioning driving member 413 is used to drive the positioning member 411 to move along the second direction, and press the positioning portion 4112 against the end of the tilting portion 43; the second positioning driving member 414 is connected to the first positioning driving member 413, and the second positioning driving member 414 is used to drive the positioning member 411 to move along the first direction, and block the end of the tilting portion 43 of the N resistor sheets 40 with the positioning portion 4112 along the second direction. Exemplarily, when the positioning mechanism 410 is operating, first, the second positioning drive member 414 is controlled to drive the positioning member 411 to move along the first direction, and the positioning portion 4112 blocks the ends of the raised portions 43 of the N resistor sheets 40 along the second direction; then, the first positioning drive member 413 is controlled to drive the positioning member 411 to move along the second direction, and the positioning portion 4112 is pressed against the end of the raised portion 43, which is stable and reliable. It is understandable that the shaft 4111 can rotate in the positioning hole 4121 and adjust the angle of the positioning portion 4112 to adapt to the resistors 40 with different tilting angles, so that the surface where the positioning portion 4112 abuts against the tilting portion 43 is perpendicular to the tilting portion 43, that is, when the clamping mechanism 420 clamps the tilting portions 43 of the N resistors 40, the ends of the tilting portions 43 can be kept aligned, and in order to prevent the shaft 4111 from rotating during the operation of the positioning mechanism 410, the shaft 4111 is fixed in the positioning hole 4121 by the first locking member, which is stable and reliable. It is understandable that the first positioning drive member 413 is first controlled to drive the positioning member 411 to move to the alignment position, and then the clamping mechanism 420 is controlled to clamp the tilting portions 43 of the N resistors 40, so as to achieve the alignment and close fit of the ends of the tilting portions 43 of the N resistors 40. It is understandable that after the clamping mechanism 420 clamps the raised portions 43 of the N resistor sheets 40, the positioning member 411 can be reset first, and then the welding mechanism 430 can be controlled to weld the raised portions 43 of the N resistor sheets 40 clamped by the clamping mechanism 420 together to prevent the positioning member 411 from interfering with the operation of the welding mechanism 430.

[0159] Exemplarily, the first direction may be set to a first horizontal direction.

[0160] Exemplarily, the second direction may be arranged at an angle with the vertical direction, so as to reduce the amplitude of the positioning portion 4112 rubbing the warping portion 43 and ensure the alignment yield of the warping portion 43 .

[0161] Exemplarily, the first positioning driving member 413 can be set as a telescopic driving member, such as a linear cylinder.

[0162] Exemplarily, the second positioning driving member 414 can be set as a telescopic driving member, such as a linear cylinder.

[0163] In a feasible implementation manner, the first support member 412 has two oppositely arranged positioning clamping arms 4122, a positioning hole 4121 is formed between the two positioning clamping arms 4122, the first locking member can be set as a screwed member, and the first locking member penetrates through one of the two positioning clamping arms 4122 and is threadedly connected to the other to realize the fixation of the shaft rod 4111, which is convenient for the assembly and adjustment of the shaft rod 4111, and the fixation of the shaft rod 4111 is stable and reliable.

[0164] In a feasible implementation manner, the positioning mechanism 410 further includes a second support member 415, the second support member 415 is arranged on the second positioning driving member 414, and the first positioning driving member 413 is arranged on the second support member 415. Wherein, the second support member 415 has two plate portions arranged at an angle, and by replacing the second support member 415, the orientation in the second direction can be adjusted to improve applicability.

[0165] In this embodiment, refer to Figure 2 and Figure 13As shown, the clamping mechanism 420 includes a clamping base 421, an intermediate member 422, a hinge base 423, a second locking member (not shown), a third locking member (not shown), and a clamping assembly 424. Among them, the intermediate member 422 is disposed on the clamping base 421, and the position of the intermediate member 422 relative to the clamping base 421 is adjustable in the third direction; the hinge base 423 is hinged to the intermediate member 422, and the rotation axis of the hinge base 423 is parallel to the first direction; the second locking member is connected to both the clamping base 421 and the intermediate member 422, and the second locking member is used to fix the intermediate member 422 to the clamping base 421; the third locking member is connected to both the intermediate member 422 and the hinge base 423, and the third locking member is used to fix the hinge base 423 to the intermediate member 422; the clamping assembly 424 includes a first clamping driving member 4241, a second clamping driving member 4242 connected to the first clamping driving member 4241, and two clamping blocks 4243 connected to the second clamping driving member 4242. The first clamping driving member 4241 is disposed on the hinge base 423, and the first clamping driving member 4241 is used to drive the two clamping blocks 4243 to move in the first direction. The second clamping driving member 4242 is used to drive the two clamping blocks 4243 to clamp the upturned portions 43 of the N resistor sheets 40. Exemplarily, when the clamping mechanism 420 operates, first, control the first clamping driving member 4241 to drive the two clamping blocks 4243 to move in the first direction so that the upturned portions 43 of the N resistor sheets 40 are located between the two clamping blocks 4243; then, control the second clamping driving member 4242 to drive the two clamping blocks 4243 to clamp the upturned portions 43 of the N resistor sheets 40, which is stable and reliable. It can be understood that by adjusting the angle of the hinge base 423 relative to the intermediate member 422, the two clamping blocks 4243 are adapted to clamp the upturned portions 43 with different upturned angles; by adjusting the position of the intermediate member 422 relative to the clamping base 421 in the third direction, the position where the two clamping blocks 4243 clamp the upturned portions 43 is adjusted to prevent the clamping blocks 4243 from interfering with the welding of the welding mechanism 430.

[0166] Exemplarily, the third direction can be set as the vertical direction.

[0167] Exemplarily, the first clamping driving member 4241 can be set as a telescopic driving member, such as a linear cylinder.

[0168] Exemplarily, the second clamping driving member 4242 can be set as a finger cylinder.

[0169] In a feasible implementation manner, the clamping base 421 is provided with a first long hole 4211, and the second locking member can be set as a screwed member. The second locking member passes through the first long hole 4211 and is threadedly connected to the intermediate member 422. Exemplarily, two first long holes 4211 are arranged side by side on the clamping base 421, and each first long hole 4211 corresponds to at least one second locking member.

[0170] In a feasible implementation, the hinge seat 423 is provided with a fan ring hole 4231, and the third locking member can be set as a screw member, and the third locking member passes through the fan ring hole 4231 and is threadedly connected to the middle member 422. Exemplarily, each fan ring hole 4231 corresponds to at least one third locking member, for example, two.

[0171] In a feasible embodiment, the second clamping drive member 4242 can also be used to limit the raised portions 43 of N resistor sheets 40, that is, the second clamping drive member 4242 drives the two clamping blocks 4243 to move and have three relative positions. The two clamping blocks 4243 maintain a larger spacing at the first relative position to accommodate the raised portions 43 of the N resistor sheets 40 to be located between the two clamping blocks 4243; the two clamping blocks 4243 maintain a smaller spacing at the second relative position to constrain the raised portions 43 of the N resistor sheets 40 and reduce the looseness of the raised portions 43 of the N resistor sheets 40, which is beneficial for the positioning mechanism 410 to align the ends of the raised portions 43; the two clamping blocks 4243 clamp the raised portions 43 of the N resistor sheets 40 at the third relative position. It can be understood that when the two clamping blocks 4243 are in the second relative position, the first positioning drive member 413 is controlled to drive the positioning member 411 to move to the alignment position. When the two clamping blocks 4243 are converted to the third relative position, the positioning member 411 is abutted against the raised portions 43 of the N resistor sheets 40 to achieve the end alignment of the raised portions 43 of the N resistor sheets 40.

[0172] In this embodiment, refer to Figure 1 , Figure 12 and Figure 13 As shown, the assembly equipment of the thermal element assembly also includes a workbench 610, the first welding device 200, the shaping device 300, the second welding device 400 and the pressing device 500 are all arranged on the workbench 610, and the positioning mechanism 410 and the clamping mechanism 420 are adjustable relative to the workbench 610 along the fourth direction. Among them, the position of the positioning mechanism 410 along the fourth direction is adjustable to adjust the contact height between the positioning part 4112 and the warping part 43 to adapt to warping parts 43 of different lengths; the position of the clamping mechanism 420 along the fourth direction is adjustable to ensure that the two clamping blocks 4243 center and clamp the resistor 40, and will not cause the warping part 43 to bend, so as to ensure the alignment accuracy of the warping part 43 and effectively ensure the welding quality.

[0173] Exemplarily, the fourth direction may be set to the second horizontal direction.

[0174] Exemplarily, the positioning mechanism 410 further includes a third support member 416, on which a second positioning driving member 414 is disposed. The third support member 416 is provided with a second elongated hole (not shown), and the first screw member penetrates the second elongated hole and is threadedly connected to the workbench 610, so as to achieve adjustable position of the positioning mechanism 410 along the fourth direction.

[0175] Exemplarily, a third long slot (not shown) is provided on the clamping seat 421. By means of passing a second screw member through the third long slot and threadedly connecting it to the workbench 610, the position of the clamping mechanism 420 in the fourth direction can be adjusted.

[0176] In this embodiment, referring to Figure 2 and Figure 14 As shown, the welding mechanism 430 includes a welding bracket 431, a welding seat 432, a fourth locking member 433, and a welding assembly. Among them, the welding seat 432 is rotatably connected to the welding bracket 431, and the rotation axis of the welding seat 432 is parallel to the first direction; the fourth locking member 433 is provided on the welding seat 432, and the fourth locking member 433 is used to fix the welding seat 432 to the welding bracket 431; the welding assembly includes a first welding driving member 4341, a second welding driving member 4342 connected to the first welding driving member 4341, and two electrode clamping blocks 4343 connected to the second welding driving member 4342. The first welding driving member 4341 is provided on the welding seat 432. The first welding driving member 4341 is used to drive the two electrode clamping blocks 4343 to move linearly, and the extension line of the movement track of the electrode clamping blocks 4343 is perpendicular to and intersects the rotation axis of the welding seat 432. The second welding driving member 4342 is used to drive the two electrode clamping blocks 4343 to clamp and weld the upturned portions 43 of N resistor sheets 40. Among them, the extension line of the movement track line of the electrode clamping blocks 4343 can be Figure 14 the dotted line in. Among them, the welding bracket 431 can be provided on the workbench 610. Exemplarily, when the welding mechanism 430 operates, first, control the first welding driving member 4341 to drive the two electrode clamping blocks 4343 to move linearly, so that the upturned portions 43 of N resistor sheets 40 are located between the two electrodes, and then, control the second welding driving member 4342 to drive the two electrode clamping blocks 4343 to clamp and weld the upturned portions 43 of N resistor sheets 40. In this embodiment, the welding seat 432 rotates relative to the welding bracket 431 to adjust the angle of the welding assembly, so that the welding assembly is suitable for welding upturned portions 43 with different upturned angles. After the welding assembly is adjusted to the appropriate angle, since the extension line of the movement track of the electrode clamping blocks 4343 is perpendicular to and intersects the rotation axis of the welding seat 432, the two electrode clamping blocks 4343 are suitable for clamping and welding the upturned portions 43 corresponding to the upturned angles.

[0177] Exemplarily, the first welding driving member 4341 includes but is not limited to a linear motor or a lead screw and slide table module driven by a motor.

[0178] In this embodiment, the specific structure of the welding assembly is not limited as long as it can achieve the welding of the warped portion 43. In a feasible implementation manner, the second welding driving member 4342 is provided as a telescopic driving member, such as a linear cylinder. Specifically, the welding assembly further includes a welding support base (not shown), on which two welding sliders (not shown) are slidably provided. The two welding sliders correspond to the two electrode clamping blocks 4343 one by one, and corresponding electrode sliders are provided on the welding sliders. Among them, the cylinder block of the second welding driving member 4342 is connected to one of the two welding sliders, the telescopic rod of the second welding driving member 4342 is connected to a positioning rod (not shown), the positioning rod is connected to a welding elastic structure (not shown), and the stepped surface on the positioning rod and the welding elastic structure clamp the other of the two welding sliders to provide buffering for the two electrode clamping blocks 4343 to clamp the warped portion 43; and a limiting structure (not shown) is provided on the welding support base to ensure that the two electrode clamping blocks 4343 clamp the warped portion 43 at the same position.

[0179] In a feasible implementation manner, the welding mechanism 430 further includes a guide wheel 435. An arc-shaped chute 4311 is provided on the welding bracket 431, and the guide wheel 435 is arranged in the arc-shaped chute 4311 to realize the adjustable angle of the welding assembly; and the fourth locking member 433 passes through the welding seat 432 and the guide wheel 435 and can abut against the bottom of the arc-shaped chute 4311. The fourth locking member 433 is threadedly connected to the welding seat 432, realizing the fixation between the welding seat 432 and the welding bracket 431, which is stable and reliable and convenient for assembly.

[0180] In a feasible implementation manner, an arc-shaped slide rail 436 is further provided on the welding bracket 431, and a slider slidably connected to the arc-shaped slide rail 436 is provided on the welding seat 432 to ensure the stable and reliable connection between the welding bracket 431 and the welding seat 432.

[0181] Exemplarily, the conveying device 620 has a fixed structure connected to the workbench 610, and the welding bracket 431 can be arranged on the fixed structure of the conveying device 620, that is, the welding bracket 431 does not move with the conveying device 620.

[0182] In this embodiment, referring to Figure 1 and Figure 15As shown, the assembling device of the heating element assembly further includes a pressing device 700 disposed between the shaping device 300 and the second welding device 400. The pressing device 700 is used to wrap the second mica sheet 10 around the bimetal piece 20, the third mica sheet 30, the first sections 41 of the N resistor sheets 40, the first mica sheet 50, and the folded portions 44 of the N resistor sheets 40, which can improve the wrapping quality of the second mica sheet 10 after the snap 60 is pressed onto the second mica sheet 10 by the pressing device 500 and improve the finished product yield of the heating element assembly. It can be understood that, to prevent the snap 60 from contacting the bimetal piece 20 and the resistor sheets 40, before the second mica sheet 10 wraps around the bimetal piece 20, the third mica sheet 30, the first sections 41 of the N resistor sheets 40, the first mica sheet 50, and the folded portions 44 of the N resistor sheets 40, the length direction of the second mica sheet 10 is perpendicular to the length direction of the bimetal piece 20, and both ends of the second mica sheet 10 protrude from the bimetal piece 20.

[0183] In this embodiment, referring to Figure 15 and Figure 16 As shown, the pressing device 700 includes an upper pressing assembly, a lower pressing assembly, a first pushing and dialing assembly, a second pushing and dialing assembly, and a shaping assembly. Among them, the upper pressing assembly and the lower pressing assembly are arranged opposite to each other in the vertical direction; the first pushing and dialing assembly and the second pushing and dialing assembly are arranged opposite to each other in the horizontal direction. For example, the first pushing and dialing assembly and the second pushing and dialing assembly are arranged opposite to each other in the first horizontal direction.

[0184] In this embodiment, when the pressing device 700 operates, first, control the upper pressing assembly to press the bimetal piece 20, the third mica sheet 30, the resistor sheet 40, and the first mica sheet 50 onto the carrier 100 in the vertical direction, and control the lower pressing assembly to press the second mica sheet 10 onto the bimetal piece 20 in the vertical direction and bend the two ends of the second mica sheet 10 upward. Then, control the first pushing and dialing assembly to push and dial the first end of the second mica sheet 10 in the first horizontal direction, and the second pushing and dialing assembly to push and dial the second end of the second mica sheet 10 in the first horizontal direction; finally, control the shaping assembly to press the two ends of the second mica sheet 10 onto the folded portions 44 of the resistor sheet 40 in the vertical direction, so as to realize the wrapping of the second mica sheet 10 around the bimetal piece 20, the third mica sheet 30, the first sections 41 of the N resistor sheets 40, the first mica sheet 50, and the folded portions 44 of the N resistor sheets 40.

[0185] Specifically, the upper pressing assembly includes a first pressing driving member 721 and a first pressing member 722 connected to the first pressing driving member 721. The first pressing driving member 721 is used to drive the first pressing member 722 to move up and down. Exemplarily, the first pressing member 722 has two pressing rods 7221. One of the two pressing rods 7221 is used to squeeze the end of the first section 41 of the resistor sheet 40, and the other is used to squeeze the second end of the bimetal piece 20.

[0186] Exemplarily, the first pressing driving member 721 may be configured as a telescopic driving member, such as a linear cylinder.

[0187] Specifically, the lower clamping assembly includes a second clamping driving member 731, a clamping guide member 732 connected to the second clamping driving member 731, a second clamping member 733 slidably connected to the clamping guide member 732, and a clamping elastic member 734 arranged between the clamping guide member 732 and the second clamping member 733. The clamping guide member 732 has two clamping plate portions 7321, and the second clamping member 733 is located between the two clamping plate portions 7321. The second clamping driving member 731 is used to drive the clamping guide member 732 and the second clamping member 733 to move up and down, and the upward movement of the second clamping member 733 can press the second mica sheet 10 onto the bimetallic member 20 under the action of the clamping elastic member 734, and the upward movement of the clamping guide member 732 can cause the two clamping plate portions 7321 to push the two ends of the second mica sheet 10 to bend upward.

[0188] Exemplarily, the compression elastic member 734 may be configured as a spring.

[0189] Exemplarily, the second pressing driving member 731 may be configured as a telescopic driving member, such as a linear cylinder.

[0190] Specifically, the first push-pull assembly includes a third pressing driving member 741, a fourth pressing driving member 742 and a first pushing member 743 connected in sequence, the third pressing driving member 741 drives the first pushing member 743 to move up and down, and the fourth pressing driving member 742 is used to drive the first pushing member 743 to move along the first horizontal direction. The first pushing member 743 moves upward to give way to the pressing member 121; the first pushing member 743 moves downward to make the fourth pressing driving member 742 suitable for pushing the first end of the second mica sheet 10 along the first horizontal direction. Exemplarily, the first pushing member 743 has a first pushing plate 7431, and the first pushing member 743 pushes the first end of the second mica sheet 10 through the first pushing plate 7431. It can be understood that a pressing driving member 630 is also provided at the station where the pressing device 700 is located to control the operation of the pressing member 121 giving way to the pressing device 700.

[0191] Exemplarily, the third pressing drive member 741 may be configured as a telescopic drive member, such as a linear cylinder.

[0192] Exemplarily, the fourth clamping drive member 742 may be configured as a telescopic drive member, such as a linear cylinder.

[0193] Specifically, the second push-pull assembly includes a fifth pressing driving member 751 and a second pushing member 752 connected to the fifth pressing driving member 751, and the fifth pressing driving member 751 is used to drive the fifth pressing driving member 751 to move along the first horizontal direction to push the second end of the second mica sheet 10. Exemplarily, the second pushing member 752 has a second pushing plate 7521, and the second pushing member 752 pushes the second end of the second mica sheet 10 through the second pushing plate 7521.

[0194] Exemplarily, the fifth clamping drive member 751 may be configured as a telescopic drive member, such as a linear cylinder.

[0195] Specifically, the shaping assembly includes a sixth pressing driving member 761 and a third pressing member 762 connected to the sixth pressing driving member 761, and the sixth pressing driving member 761 is used to drive the third pressing member 762 to move up and down. Exemplarily, taking the thermal element assembly having two second mica sheets 10 as an example, the third pressing member 762 has a first pressing portion 7621, a second pressing portion 7622 and a third pressing portion 7623 arranged side by side, the first pressing portion 7621 can press the two ends of one of the two second mica sheets 10 on the folding portion 44 of the resistor sheet 40 along the vertical direction, the second pressing portion 7622 can press the two ends of the other of the two second mica sheets 10 on the folding portion 44 of the resistor sheet 40 along the vertical direction, and the third pressing portion 7623 can press on the area of the folding portion 44 of the resistor sheet 40 close to the tilting portion 43.

[0196] Exemplarily, the sixth clamping drive member 761 may be configured as a telescopic drive member, such as a linear cylinder.

[0197] Exemplarily, the sixth clamping drive member 761 is disposed on the first clamping member 722, and the first clamping drive member 721 is also used to drive the sixth clamping drive member 761 to move up and down, thereby driving the third clamping member 762 to move up and down, shortening the operating stroke of the third clamping member 762, and having a compact structure.

[0198] Exemplarily, the clamping device 700 further includes a first clamping bracket 710 , the first clamping driver 721 and the third clamping driver 741 may be disposed on the first clamping bracket 710 , and the first clamping bracket 710 may be disposed on a fixed structure of the conveying device 620 .

[0199] Exemplarily, the clamping device 700 further includes a second clamping bracket, the second clamping driver 731 and the fifth clamping driver 751 may be disposed on the second clamping bracket (not shown), and the second clamping bracket may be disposed on the workbench 610 .

[0200] In this embodiment, the specific operation process of the pressing device 700 is as follows. First, control the first pressing driving member 721 to drive the first pressing member 722 to move downward, control the second pressing driving member 731 to drive the pressing guiding member 732 and the second pressing member 733 to move upward, and control the pressing driving member 630 to drive the pressing member 121 to make way, so that both ends of the second mica sheet 10 are bent upward. Secondly, control the third pressing driving member 741 to drive the first pushing and dialing member 743 to move downward, control the fourth pressing driving member 742 to drive the first pushing and dialing member 743 to move in the first horizontal direction, and control the fifth pressing driving member 751 to drive the fifth pressing driving member 751 to move in the first horizontal direction, so that both ends of the second mica sheet 10 are bent toward each other. Then, reset the third pressing driving member 741, the fourth pressing driving member 742 and the fifth pressing driving member 751, and control the sixth pressing driving member 761 to drive the third pressing member 762 to move downward, so that the second mica sheet 10 is wrapped around the bimetal member 20, the third mica sheet 30, the first section 41 of the N resistor sheets 40, the first mica sheet 50 and the folded portion 44 of the N resistor sheets 40. Finally, after sequentially resetting the sixth pressing driving member 761 and the pressing driving member 630, reset the first pressing driving member 721 and the second pressing driving member 731.

[0201] In this embodiment, referring to Figure 1 , Figure 17 and Figure 18 as shown, the pressing device 500 includes a first pressing assembly, a pressing feeding assembly and a pressing material separating assembly 530. Among them, the pressing feeding assembly is used to transfer the buckle 60 to the pressing material separating assembly 530, the pressing material separating assembly 530 is used to press the buckle 60 against the second mica sheet 10, and the first pressing assembly is used to press and connect the buckle 60 to the second mica sheet 10.

[0202] Exemplarily, the first pressing assembly can be arranged on the fixed structure of the conveying device 620.

[0203] Exemplarily, both the pressing feeding assembly and the pressing material separating assembly 530 can be arranged on the workbench 610.

[0204] Specifically, the first pressing assembly includes a first pressing driving member 511, a pressing seat 512, a pressing dialing rod 513 and a second pressing driving member 514. The pressing seat 512 is arranged on the first pressing driving member 511. Two pressing dialing rods 513 are hinged on the pressing seat 512, and the second pressing driving member 514 is arranged on the pressing seat 512. The second pressing driving member 514 is used to drive the two pressing dialing rods 513 to rotate and push and dial the corresponding ends of the buckle 60, so that the buckle 60 is pressed and connected to the second mica sheet 10.

[0205] Exemplarily, the first pressing driving member 511 can be set as a telescopic driving member, such as a linear cylinder.

[0206] Exemplarily, a pressing roller (not shown) is connected to the first end of the pressing lever 513, and the second pressing driving member 514 is configured as a telescopic driving member, such as a linear cylinder; a pushing block (not shown) is connected to the telescopic rod of the second pressing driving member 514. The pushing block can be a conical block, a trapezoidal block, a triangular block, etc. The second pressing driving member 514 pushes the pressing roller through the pushing block, so that the second ends of the two pressing levers 513 approach each other and push the first ends of the pressing levers 513.

[0207] Exemplarily, a pressing elastic member 564 can be provided between the two pressing levers 513, and the pressing elastic member 564 makes the second ends of the two pressing levers 513 tend to move away from each other. Among them, the pressing elastic member 564 can be configured as a spring.

[0208] In a feasible implementation manner, two pressing rods 5121 are arranged at intervals on the pressing seat 512. One of the two pressing rods 5121 is used to squeeze the end of the first section 41 of the resistor sheet 40, and the other is used to squeeze the second end of the bimetallic member 20, so as to prevent the impact of the buckle 60 on the second mica sheet 10 from affecting the components to be assembled in the first placement groove 111.

[0209] Specifically, the pressing and feeding assembly includes a pressing and feeding seat 521, a first linear vibrating feeder 522, a first pressing and feeding rod 523, a first pressing and feeding driving member 524, a second pressing and feeding rod (not shown), and a second pressing and feeding driving member 525. Among them, the pressing and feeding seat 521 has a feeding channel and a feeding hole 5211 communicating with the feeding channel. The first pressing and feeding rod 523 slidably penetrates through the feeding channel, and a first material groove is provided on the first pressing and feeding rod 523; both the first pressing and feeding driving member 524 and the second pressing and feeding driving member 525 are arranged on the pressing and feeding seat 521, and the first pressing and feeding driving member 524 is connected to the first pressing and feeding rod 523, and the second pressing and feeding driving member 525 is connected to the second pressing and feeding rod. In this embodiment, the first pressing and feeding driving member 524 is used to drive the first pressing and feeding rod 523 to slide. When the first pressing and feeding rod 523 slides to the first position, the feeding hole 5211 and the first material groove are aligned, and the buckle 60 on the first linear vibrating feeder 522 can be transferred to the first material groove through the feeding hole 5211; when the first pressing and feeding rod 523 slides to the second position, the second pressing and feeding driving member 525 can drive the second pressing and feeding rod to push the buckle 60 in the first material groove onto the pressing and dividing assembly 530.

[0210] Exemplarily, the first pressing and feeding driving member 524 can be configured as a telescopic driving member, such as a linear cylinder.

[0211] Exemplarily, the second pressing and feeding driving member 525 can be configured as a telescopic driving member, such as a linear cylinder.

[0212] Specifically, the press-fitting and material separating assembly 530 includes a first press-fitting and material separating driving member 535 and a press-fitting and material separating seat 531 connected to the first press-fitting and material separating driving member 535. The first press-fitting and material separating driving member 535 is used to drive the press-fitting and material separating seat 531 to press the buckle 60 onto the second mica sheet 10. Among them, the second press-fitting feeding rod can push the buckle 60 onto the press-fitting and material separating seat 531.

[0213] Exemplarily, the first press-fitting and material separating driving member 535 can be set as a telescopic driving member, such as a linear cylinder.

[0214] Exemplarily, taking the thermal element assembly having two second mica sheets 10 and two buckles 60 as an example, the press-fitting and material separating seat 531 has a first press-fitting feeding member 532. The press-fitting and material separating assembly 530 further includes a second press-fitting and material separating driving member 534 and a second press-fitting feeding member 533 connected to the second press-fitting and material separating driving member 534. The second press-fitting and material separating driving member 534 is used to drive the second press-fitting feeding member 533 to abut against or separate from the first press-fitting feeding member 532. In this embodiment, two buckles 60 can be stored in the first material trough. When the first press-fitting feeding member 532 abuts against the second press-fitting feeding member 533, the second press-fitting feeding rod can push one of the two buckles 60 onto the first press-fitting feeding member 532 and the other onto the second press-fitting feeding member 533. The second press-fitting and material separating driving member 534 drives the second press-fitting feeding member 533 to separate from the first press-fitting feeding member 532 to separate the two buckles 60, so that the press-fitting and material separating seat 531 can press the buckle 60 onto the corresponding second mica sheet 10.

[0215] Exemplarily, the second press-fitting and material separating driving member 534 can be set as a telescopic driving member, such as a linear cylinder.

[0216] In this embodiment, referring to Figure 1 and Figure 19 As shown, the first press-fitting assembly, the press-fitting feeding assembly and the press-fitting and material separating assembly 530 form a first press-fitting mechanism 501. The press-fitting device 500 further includes a second press-fitting mechanism 502, and the second press-fitting mechanism 502 is used to stamp the buckle 60 so that the buckle 60 is firmly and reliably pressed onto the second mica sheet 10.

[0217] Specifically, the second pressing mechanism 502 includes a pressing bracket 540, a second pressing assembly and a third pressing assembly provided on the pressing bracket 540. The second pressing assembly includes a third pressing driving member 551 and a first pressing block 552 connected to the third pressing driving member 551. The third pressing assembly includes a fourth pressing driving member 563 and a second pressing block 561 connected to the fourth pressing driving member 563. In this embodiment, the fourth pressing driving member 563 is used to drive the second pressing block 561 to support the buckle 60, and the third pressing driving member 551 is used to drive the first pressing block 552 to press the buckle 60 supported by the second pressing block 561, which is stable and reliable.

[0218] Exemplarily, the third pressing driving member 551 can be set as a telescopic driving member, such as a linear cylinder.

[0219] Exemplarily, the fourth pressing driving member 563 can be set as a telescopic driving member, such as a linear cylinder.

[0220] Exemplarily, the third pressing assembly further includes a pressing transmission member 562 and a pressing elastic member 564. The fourth pressing driving member 563, the pressing transmission member 562 and the second pressing block 561 are connected in sequence. The first end of the pressing elastic member 564 is connected to the pressing bracket 540, and the second end of the pressing elastic member 564 is connected to the second pressing block 561. Both the pressing transmission member 562 and the second pressing block 561 are slidably connected to the pressing bracket 540. Among them, the connection manner between the pressing transmission member 562 and the second pressing block 561 is the same as the connection manner between the shaping transmission member 385 and the lower shaping block 384, and this embodiment will not elaborate too much.

[0221] Exemplarily, the pressing elastic member 564 can be set as a spring.

[0222] Exemplarily, the pressing bracket 540 can be provided on the workbench 610.

[0223] In this embodiment, refer to Figure 1 、 Figure 21 and Figure 22As shown in the figure, the assembling device for the heating element assembly further includes a resistor feeding device 800, which includes a first transplanting mechanism 810, a first tray support 820, a first feeding mechanism 830, a first cutting mechanism 840, an alignment mechanism 850, and a pre-welding mechanism 860 arranged in sequence. Among them, the first tray support 820 is used to place the resistor trays; the first feeding mechanism 830 is used to convey the resistor tape of the resistor tray to the alignment mechanism 850; the first cutting mechanism 840 is used to cut the resistor tape into resistor chips 40, and the cut resistor chips 40 fall onto the alignment mechanism 850; N resistor chips 40 can be stacked on the alignment mechanism 850, and the alignment mechanism 850 is used to align the N resistor chips 40; the pre-welding mechanism 860 is used to weld the first sections 41 of the N resistor chips 40 together; the first transplanting mechanism 810 is used to stack the N resistor chips 40 welded by the pre-welding mechanism 860 onto the third mica sheet 30. In this embodiment, when the resistor feeding device 800 operates, first, through the feeding of the first feeding mechanism 830 and the cutting of the first cutting mechanism 840, the N resistor chips 40 are stacked together; then, the N resistor chips 40 are aligned by the alignment mechanism 850, and the first sections 41 of the N resistor chips 40 are welded together by the pre-welding mechanism 860; finally, the N resistor chips 40 after welding are stacked onto the third mica sheet 30 by the first transplanting mechanism 810, effectively preventing the N resistor chips 40 from being scattered on the carrier 100, facilitating subsequent operations, and effectively ensuring the yield of the finished product.

[0224] It can be understood that to improve the operation efficiency, two resistor trays can be placed on the first tray support 820, that is, the resistor tapes on the two resistor trays can be fed and cut synchronously; the cut resistor chips 40 are stacked into two stacks, and the two stacks of resistor chips 40 can be aligned, welded, and transferred respectively.

[0225] Exemplarily, the pre-welding mechanism 860 has the same structure as the first welding device 200, and this embodiment will not be elaborated too much.

[0226] Specifically, a tray driving member 821 is provided on the first tray support 820. The tray driving member 821 is used to drive the resistor tray to rotate to cooperate with the first feeding mechanism 830 to convey the resistor tape, which is stable and reliable. Exemplarily, the tray driving member 821 can be set as a motor.

[0227] Specifically, the first feeding mechanism 830 includes a first feeding roller (not shown) and a second feeding roller (not shown) arranged opposite to each other. The first feeding roller is connected with a feeding motor (not shown), and the second feeding roller is connected with a feeding telescopic driving member (not shown). The feeding telescopic driving member is used to drive the second feeding roller to press the conveyed resistor tape against the first feeding roller. The feeding motor drives the first feeding roller to rotate to realize the conveyance of the resistor tape, which is stable and reliable.

[0228] Exemplarily, the feeding telescopic driving member can be set as a linear cylinder.

[0229] Specifically, the first cutting mechanism 840 includes a cutting bracket 841, a first cutting driving member 842, an eccentric shaft 843, a cutting connecting rod 844, a cutting sliding block 845, and a first cutting knife 846. Among them, the first cutting driving member 842 is fixed on the cutting bracket 841, the first cutting driving member 842 is connected to the eccentric shaft 843, the first end of the cutting connecting rod 844 is hinged to the eccentric shaft 843, the second end of the cutting connecting rod 844 is hinged to the cutting sliding block 845, and the cutting sliding block 845 is slidably arranged on the cutting bracket 841 and connected to the first cutting knife 846. In this embodiment, the first cutting driving member 842 drives the eccentric shaft 843 to rotate, so as to drive the cutting sliding block 845 to slide up and down through the cutting connecting rod 844, and further drive the first cutting knife 846 to cut the resistor tape, which is stable and reliable.

[0230] Exemplarily, the first cutting driving member 842 can be set as a motor.

[0231] Specifically, the alignment mechanism 850 includes an alignment table 851, a pushing driving member (not shown), a first pushing member 852, a first alignment driving member 853, an alignment stop member 854, a second alignment driving member 855, and a second pushing member 856. Among them, the alignment table 851 has a first alignment groove 8511, and the cut resistor sheets 40 fall into the first alignment groove 8511; the pushing driving member is arranged below the alignment table 851 and connected to the first pushing member 852, the first alignment driving member 853 is arranged above the alignment table 851 and connected to the alignment stop member 854, and the second alignment driving member 855 is arranged on the side of the alignment table 851 away from the first cutting mechanism 840 and connected to the second pushing member 856. In this embodiment, when the alignment mechanism 850 operates, first, control the pushing driving member to drive the first pushing member 852 to push against N stacked resistor sheets 40, so that the N resistor sheets 40 move along the extension direction of the first alignment groove 8511 to between the alignment stop member 854 and the second pushing member 856; then, control the first alignment driving member 853 to drive the alignment stop member 854 to move down, and control the second alignment driving member 855 to drive the second pushing member 856 to move towards the alignment stop member 854, so as to push the N resistor sheets 40 against the alignment stop member 854, realizing the alignment of both ends of the N resistor sheets 40.

[0232] Exemplarily, the pushing driving member can be set as a telescopic driving member, such as a linear cylinder.

[0233] Exemplarily, the first alignment driving member 853 can be set as a telescopic driving member, such as a linear cylinder.

[0234] Exemplarily, the second alignment driving member 855 can be set as a telescopic driving member, such as an electric push rod, to meet the alignment requirements of the resistor sheets 40 with different lengths and improve applicability.

[0235] Specifically, the resistor loading device 800 further includes a soldering station 870. The soldering station 870 has a second alignment groove 871 and a pre-soldering placement groove 872. A stop plate (not shown) is provided at one end of the second alignment groove 871. A third alignment driving member 881, a third pusher 882 connected to the third alignment driving member 881, a fourth alignment driving member 883, and a fourth pusher 884 connected to the fourth alignment driving member 883 are provided on the soldering station 870. Among them, the first transfer mechanism 810 is further configured to transfer the N resistor sheets 40 aligned in the first alignment groove 8511 into the second alignment groove 871. The third alignment driving member 881 is configured to drive the third pusher 882 to push against one end of the N resistor sheets 40 in the second alignment groove 871, so that the other ends of the N resistor sheets 40 abut against the stop plate, and further align the two ends of the N resistor sheets 40. The first transfer mechanism 810 is further configured to transfer the N resistor sheets 40 aligned in the second alignment groove 871 into the pre-soldering placement groove 872. The fourth alignment driving member 883 is configured to drive the fourth pusher 884 to push against one long side of the N resistor sheets 40 in the pre-soldering placement groove 872, so that the other long side of the N resistor sheets 40 abuts against the groove wall of the pre-soldering placement groove 872 to align the long sides of the N resistor sheets 40. It can be understood that the pre-soldering mechanism 860 is configured to weld the first segments 41 of the N resistor sheets 40 with aligned long sides in the pre-soldering placement groove 872 together. In this embodiment, compared with the one-time alignment of the two ends of the N resistor sheets 40, the alignment effect of the secondary alignment of the two ends of the N resistor sheets 40 is better.

[0236] Exemplarily, the third alignment driving member 881 can be set as a telescopic driving member, such as an electric push rod, to meet the alignment requirements of the resistor sheets 40 with different lengths and improve applicability.

[0237] Exemplarily, the fourth alignment driving member 883 can be set as a telescopic driving member, such as a linear cylinder.

[0238] In a feasible implementation, the first transplanting mechanism 810 includes a first transplanting claw, a second transplanting claw, and a third transplanting claw. The first transplanting claw is used to transfer N resistor sheets 40 aligned in the first alignment slot 8511 to the second alignment slot 871. The second transplanting claw is used to transfer N resistor sheets 40 aligned in the second alignment slot 871 to the pre-welding placement slot 872. The third transplanting claw is used to transfer N resistor sheets 40 welded in the pre-welding placement slot 872 to the carrier 100. In this embodiment, to enable the three transplanting claws to grasp and transfer N resistor sheets 40, the first transplanting mechanism 810 further includes a first transplanting driving member and a second transplanting driving member provided on the first transplanting driving member. The first transplanting claw, the second transplanting claw, and the third transplanting claw are arranged side by side on the second transplanting driving member. The first transplanting driving member is used to drive the first transplanting claw, the second transplanting claw, and the third transplanting claw to move horizontally, and the second transplanting driving member is used to drive the first transplanting claw, the second transplanting claw, and the third transplanting claw to move vertically. Exemplarily, taking the alignment table 851 having two first alignment slots 8511 as an example, a third transplanting driving member is further provided on the second transplanting driving member, and the first transplanting claw is arranged on the third transplanting driving member. The third transplanting driving member is used to drive the first transplanting claw to move horizontally, so that the first transplanting claw can selectively grasp N resistor sheets 40 in one of the first alignment slots 8511.

[0239] Exemplarily, the first transplanting claw, the second transplanting claw, and the third transplanting claw can all be set as jaw structures driven by finger cylinders.

[0240] Exemplarily, the first transplanting driving member can be set as a slide table module driven by a cylinder.

[0241] Exemplarily, the second transplanting driving member can be set as a slide table module driven by a cylinder.

[0242] Exemplarily, the third transplanting driving member can be set as a telescopic driving member, such as a linear cylinder.

[0243] In a feasible implementation, the resistor feeding device 800 further includes a pre-pressing driving member 891 and a pre-pressing member 892 connected to the pre-pressing driving member 891. A pressing driving member 630 is also provided at the station where the resistor feeding device 800 is located. In this embodiment, first, the pressing driving member 630 drives the pressing member 121 to make way; then, the first transplanting mechanism 810 is controlled to stack N resistor sheets 40 welded by the pre-welding mechanism 860 on the third mica sheet 30; finally, the pre-pressing driving member 891 is controlled to drive the pre-pressing member 892 to extrude the first section 41 of N resistor sheets 40, and then the pressing driving member 630 and the pre-pressing driving member 891 are controlled to reset in sequence to prevent the resistor sheets 40 from detaching from the first placement slot 111.

[0244] Exemplarily, the pre-pressing driving member 891 can be set as a telescopic driving member, such as a linear cylinder.

[0245] In a feasible implementation, as Figure 20 shown, a second placement groove 112 is further provided on the vehicle 100. The second placement groove 112 is used to place the first mica sheet 50. The assembling device of the heating element assembly further includes a material transferring device 940. The material transferring device 940 is used to stack the first mica sheets 50 in the second placement groove 112 onto the first section 41 of the resistance sheet 40. Among them, in order to prevent the pressing member 121 from interfering with the operation of the material transferring device 940, a pressing driving member 630 is also provided at the station where the material transferring device 940 is located.

[0246] Specifically, the material transferring device 940 includes a first material transferring driving member 941, a second material transferring driving member 942, and a material transferring suction cup 943 that are connected in sequence. The first material transferring driving member 941 is used to drive the material transferring suction cup 943 to move horizontally between the first placement groove 111 and the second placement groove 112. The second material transferring driving member 942 is used to drive the material transferring suction cup 943 to move vertically, so that the material transferring suction cup 943 is suitable for adsorbing or placing the first mica sheet 50.

[0247] Exemplarily, the first material transferring driving member 941 includes, but is not limited to, a linear motor or a lead screw slide table module driven by a motor.

[0248] Exemplarily, the second material transferring driving member 942 can be set as a telescopic driving member, such as a linear cylinder.

[0249] In this embodiment, referring to Figure 1 and Figure 23 shown, the assembling device of the heating element assembly further includes a first feeding device 910, a second feeding device 920, and a third feeding device 930 that are arranged in sequence. The first feeding device 910 is used to place the second mica sheet 10 on the vehicle 100. The second feeding device 920 is used to place the bimetal part 20 on the second mica sheet 10. The third feeding device 930 is used to place the third mica sheet 30 on the bimetal part 20 and place the first mica sheet 50 in the second placement groove 112.

[0250] In this embodiment, the first feeding device 910 includes a second material tray bracket 911, a second feeding mechanism, a second cutting mechanism, and a first feeding mechanism that are arranged in sequence. The second material tray bracket 911 is used to place the mica material tray. The second feeding mechanism is used to convey the mica tape on the mica material tray to the second cutting mechanism. The second cutting mechanism is used to cut the mica tape into the second mica sheet 10. The first feeding mechanism is used to transfer the cut second mica sheet 10 to the vehicle 100.

[0251] Exemplarily, a fixed pulley 9111 is provided below the second material tray bracket 911, and the mica tape extends around the fixed pulley 9111 to the second feeding mechanism.

[0252] Exemplarily, taking the heat element assembly having two second mica sheets 10 as an example, two mica trays can be placed on the second tray bracket 911, that is, the mica tapes on the two mica trays can complete feeding and cutting synchronously, and the first feeding mechanism can transfer the two second mica sheets 10 cut simultaneously to the carrier 100.

[0253] Specifically, the second feeding mechanism includes a feeding bracket 912, a first feeding driving member 9131 disposed on the feeding bracket 912, a second feeding driving member 9132 disposed on the first feeding driving member 9131, and a feeding pressing block 9133 disposed on the second feeding driving member 9132. The first feeding driving member 9131 is used to drive the feeding pressing block 9133 to move in the vertical direction, and the second feeding driving member 9132 is used to drive the feeding pressing block 9133 to move in the horizontal direction. In this embodiment, when the second feeding mechanism operates, first, control the first feeding driving member 9131 to drive the feeding pressing block 9133 to move downward to press the mica tape against the feeding bracket 912; then, control the second feeding mechanism to drive the feeding pressing block 9133 to move, and the feeding pressing block 9133 drives the mica tape to be transferred to the second cutting mechanism through friction, and accurate feeding can be achieved.

[0254] Exemplarily, the first feeding driving member 9131 can be set as a telescopic driving member, such as a linear cylinder.

[0255] Exemplarily, the second feeding driving member 9132 can be set as a telescopic driving member, such as a linear cylinder.

[0256] In a feasible implementation manner, a pressing driving member 9141 and a pressing member 9142 connected to the pressing driving member 9141 are disposed on the feeding bracket 912. After the second cutting mechanism cuts the mica tape into the second mica sheets 10, first, control the pressing driving member 9141 to drive the pressing member 9142 to press the mica tape against the feeding bracket 912; then, reset the first feeding driving member 9131 and the second feeding driving member 9132 in sequence to wait for the next feeding of the mica tape. It can be understood that when the feeding pressing block 9133 presses the mica tape against the feeding bracket 912, the pressing driving member 9141 can be reset.

[0257] Exemplarily, the pressing driving member 9141 can be set as a telescopic driving member, such as a linear cylinder.

[0258] Specifically, the second cutting mechanism includes a second cutting driving member 9151 and a second cutting knife 9152 connected to the second cutting driving member 9151. The second cutting driving member 9151 is used to drive the second cutting knife 9152 to move in the vertical direction to cut the mica tape.

[0259] Exemplarily, the second blanking driving member 9151 may be set as a telescopic driving member, such as a linear cylinder.

[0260] Specifically, the first loading mechanism includes a first loading driving member 9161, a second loading driving member 9162, and a first loading suction cup 9163 that are sequentially connected. The first loading driving member 9161 is configured to drive the first loading suction cup 9163 to move horizontally between the second cutting mechanism and the carrier 100, and the second loading driving member 9162 is configured to drive the first loading suction cup 9163 to move vertically, so that the first loading suction cup 9163 is adapted to adsorb or place the second mica sheet 10.

[0261] Exemplarily, the first loading driving member 9161 may be set as a telescopic driving member, such as a linear cylinder.

[0262] Exemplarily, the second loading driving member 9162 may be set as a telescopic driving member, such as a linear cylinder.

[0263] In a feasible implementation manner, a support driving member 640 and a cushion block 641 connected to the support driving member 640 are provided at the station where the first loading mechanism is located. The support driving member 640 is configured to drive the cushion block 641 to support the second mica sheet 10 on the carrier 100. Wherein, air holes may be provided on the cushion block 641, and the cushion block 641 can extract air through the air holes, so that the air holes can adsorb the second mica sheet 10 to prevent the second mica sheet 10 from shifting. In this embodiment, the support driving member 640 may be controlled to drive the cushion block 641 to move upward first, and then after controlling the first loading mechanism to transfer the second mica sheet 10 to the carrier 100, the air holes extract air to adsorb the second mica sheet 10. Exemplarily, a through hole 113 for the cushion block 641 to pass through is provided at the bottom of the first placement groove 111.

[0264] Exemplarily, the support driving member 640 may be set as a telescopic driving member, such as a linear cylinder.

[0265] In a feasible implementation manner, to prevent the pressing member 121 from interfering with the operation of the first loading mechanism, a pressing driving member 630 is also provided at the station where the first loading mechanism is located. It can be understood that after the pressing driving member 630 is reset so that the pressing member 121 presses tightly on the second mica sheet 10, the air holes are depressurized and the support driving member 640 is reset.

[0266] In this embodiment, referring to Figure 1 and Figure 24As shown, the second feeding device 920 includes a second linear vibrating feeder 921, a feeding table 922, a material blocking mechanism, and a second feeding mechanism. Among them, a second material groove (not shown) is provided on the feeding table 922. The second linear vibrating feeder 921 can transfer the bimetallic parts 20 into the second material groove. The material blocking mechanism is used to separate the bimetallic parts 20 in the second material groove from the bimetallic parts 20 on the second linear vibrating feeder 921. The second feeding mechanism is used to transfer the bimetallic parts 20 in the second material groove to the carrier 100. In this embodiment, separating the two bimetallic parts 20 can prevent the bimetallic parts 20 on the second linear vibrating feeder 921 from being carried away when the second feeding mechanism grabs the bimetallic parts 20 in the second material groove.

[0267] Specifically, the material blocking mechanism includes a material blocking driving part 923 provided on the feeding table 922 and a material blocking part 924 connected to the material blocking driving part 923. A notch 21 is provided at the second end of the bimetallic part 20. The material blocking driving part 923 is used to drive the material blocking part 924 to insert into the notch 21, thereby separating the two bimetallic parts 20, which is stable and reliable.

[0268] Exemplarily, the material blocking driving part 923 can be set as a telescopic driving part, such as a linear cylinder.

[0269] Specifically, the second feeding mechanism includes a third feeding driving part 925, a fourth feeding driving part 926, a steering driving structure 927, and a feeding gripper 928 connected in sequence. The third feeding driving part 925 is used to drive the feeding gripper 928 to move horizontally between the feeding table 922 and the carrier 100; the fourth feeding driving part 926 is used to drive the feeding gripper 928 to move vertically, and the steering driving structure 927 is used to drive the feeding gripper 928 to rotate. In this embodiment, when the second feeding mechanism operates, first, control the third feeding driving part 925 to drive the feeding gripper 928 to move to the feeding table 922. Then, control the fourth feeding driving part 926 to lower the feeding gripper 928. The feeding gripper 928 grabs the bimetallic part 20, and the fourth feeding driving part 926 drives the feeding gripper 928 to move upward; finally, control the third feeding driving part 925 to drive the feeding gripper 928 to move to the carrier 100. After the steering driving structure 927 drives the feeding gripper 928 to drive the bimetallic part 20 to rotate to an appropriate angle, control the fourth feeding driving part 926 to lower the feeding gripper 928, and the feeding gripper 928 places the bimetallic part 20 on the carrier 100.

[0270] Exemplarily, the third feeding driving part 925 can be set as a slide table module driven by a cylinder.

[0271] Exemplarily, the fourth feeding driving part 926 can be set as a slide table module driven by a cylinder.

[0272] Exemplarily, the steering drive structure 927 includes a steering drive member (not shown), a rack (not shown), a gear (not shown), and a rotating seat (not shown) connected in sequence. The steering drive member is disposed on the slide table of the fourth loading drive member 926, the rotating seat is rotatably connected to the slide table of the fourth loading drive member 926, and the loading gripper 928 is disposed on the rotating seat. In this embodiment, the steering drive member drives the rack to move, drives the gear to rotate through meshing transmission, and then drives the loading gripper 928 to rotate through the rotating seat, which is stable and reliable. Among them, the steering drive member can be set as a telescopic drive member, such as a linear cylinder.

[0273] In a feasible implementation manner, a pressing drive member 630, a supporting drive member 640, and a spacer 641 connected to the supporting drive member 640 are also provided at the station where the second loading mechanism is located. Before placing the bimetal part 20 on the carrier 100, first, control the supporting drive member 640 to drive the spacer 641 to move upward, and air is pumped through the air holes to adsorb the second mica sheet 10; then, control the pressing drive member 630 to drive the pressing member 121 to make way. After placing the bimetal part 20 on the carrier 100, first, control the pressing drive member 630 to reset so that the pressing member 121 presses tightly on the bimetal part 20; then, the air holes are depressurized and the supporting drive member 640 is reset.

[0274] In this embodiment, with reference to Figure 1 and Figure 25 As shown, the third loading device 930 includes a third feeding mechanism, a transition mechanism, and a third loading mechanism. Among them, a carrier 932 is provided on the third feeding mechanism, the third mica sheet 30 and the first mica sheet 50 can be placed on the carrier 932, and the third feeding mechanism is used to convey the carrier 932; the third loading mechanism is used to transfer the third mica sheet 30 and the first mica sheet 50 on the carrier 932 to the transition mechanism, and transfer the third mica sheet 30 and the first mica sheet 50 on the transition mechanism to the carrier 100; the transition mechanism is used to position the third mica sheet 30 and the first mica sheet 50. In this embodiment, the third mica sheet 30 and the first mica sheet 50 are positioned by the transition mechanism, so that the third loading mechanism can accurately stack the third mica sheet 30 on the bimetal part 20 and accurately place the first mica sheet 50 in the second placement groove 112.

[0275] Specifically, the third feeding mechanism includes a first conveyor belt 9311, a second conveyor belt 9312, and a transition table 9313. The first conveyor belt 9311 and the second conveyor belt 9312 are arranged side by side. The transition table 9313 is located at the same end of the first conveyor belt 9311 and the second conveyor belt 9312. The transition table 9313 has a first tabletop opposite to the first conveyor belt 9311 and a second tabletop opposite to the second conveyor belt 9312. Further, the third feeding mechanism further includes a first transfer driving member 9314, a first push plate 9315 connected to the first transfer driving member 9314, a second transfer driving member 9316, and a second push plate 9317 connected to the second transfer driving member. In this embodiment, the first conveyor belt 9311 can convey the carrier 932 to the first tabletop. The first transfer driving member 9314 is used to drive the first push plate 9315 to push the carrier 932 on the first tabletop to the second tabletop. The second transfer driving member 9316 is used to drive the second push plate 9317 to push the carrier 932 on the second tabletop to the second conveyor belt 9312. The second conveyor belt 9312 can convey the carrier 932 to an end far from the transition table 9313. To ensure that the third feeding mechanism stably and reliably grabs the third mica sheet 30 and the first mica sheet 50, a positioning plate (not shown) is provided on one side of the transition table 9313 away from the second push plate 9317. The second push plate 9317 can press the carrier 932 against the positioning plate, and the third feeding mechanism grabs the third mica sheet 30 and the first mica sheet 50 on the carrier 932 on the second tabletop.

[0276] Exemplarily, the first transfer driving member 9314 can be set as a telescopic driving member, such as a linear cylinder.

[0277] Exemplarily, the second transfer driving member 9316 can be set as a telescopic driving member, such as a linear cylinder.

[0278] Specifically, the transition mechanism includes an intermediate bracket 9331, a positioning driving member, and a positioning clamp block 9333. There are two clamping and positioning driving members 9332 provided on the intermediate bracket 9331, and two positioning clamp blocks 9333 are provided on the clamping and positioning driving members 9332. The positioning clamp blocks 9333 on one of the two clamping and positioning driving members 9332 are used to position the third mica sheet 30, and the positioning clamp blocks 9333 on the other are used to position the first mica sheet 50. Among them, the positioning clamp block 9333 is provided with a positioning groove. Taking the positioning of the third mica sheet 30 as an example, when the third mica sheet 30 is placed on the two positioning blocks, the first end of the third mica sheet 30 is located in the positioning groove of one of the two positioning clamp blocks 9333, and the second end of the third mica sheet 30 is located in the positioning groove of the other of the two positioning clamp blocks 9333. The clamping and positioning driving member 9332 drives the two positioning clamp blocks 9333 to approach each other, and then pushes the third mica sheet 30 to move towards the center between the two positioning clamp blocks 9333, realizing the positioning of the third mica sheet 30. Exemplarily, the shape of the positioning groove can be set as a trapezoid.

[0279] Exemplarily, the clamping and positioning driving member 9332 can be set as a finger cylinder.

[0280] Specifically, the third feeding mechanism includes a fifth feeding driving member 9341, a first feeding assembly and a second feeding assembly provided on the fifth feeding driving member 9341. The fifth feeding driving member 9341 is used to drive the first feeding assembly and the second feeding assembly to move in the horizontal direction. In this embodiment, when the first feeding assembly and the second feeding assembly move to the third position, the first feeding assembly can grasp the third mica sheet 30 and the first mica sheet 50 on the transition mechanism, and the second feeding assembly can grasp the third mica sheet 30 and the first mica sheet 50 on the carrier 932; when the first feeding assembly and the second feeding assembly move to the fourth position, the first feeding assembly can place the third mica sheet 30 and the first mica sheet 50 on the carrier 100, and the second feeding assembly can place the third mica sheet 30 and the first mica sheet 50 on the transition mechanism, with high operation efficiency.

[0281] Exemplarily, the fifth feeding driving member 9341 can be set as a slide module driven by a cylinder.

[0282] Specifically, the first feeding assembly includes a sixth feeding driving member 9342 and two second feeding suction cups 9344 provided on the sixth feeding driving member 9342. The sixth feeding driving member 9342 is used to drive the two second feeding suction cups 9344 to move in the vertical direction, so that one of the two second feeding suction cups 9344 is suitable for sucking or placing the third mica sheet 30, and the other is suitable for sucking or placing the first mica sheet 50.

[0283] Exemplarily, the sixth feeding driving member 9342 can be set as a telescopic driving member, such as a linear cylinder.

[0284] Exemplarily, the second loading component includes a seventh loading driving member 9343 and two third loading suction cups 9345 disposed on the seventh loading driving member 9343. The seventh loading driving member 9343 is configured to drive the two third loading suction cups 9345 to move in the vertical direction, so that one of the two third loading suction cups 9345 is adapted to suck or place the third mica sheet 30, and the other is adapted to suck or place the first mica sheet 50.

[0285] Exemplarily, the heights of the third mica sheet 30 and the first mica sheet 50 on the carrier 932 are not equal to the heights of the third mica sheet 30 and the first mica sheet 50 on the transition mechanism. Setting the seventh loading driving member 9343 as a linear motor or a lead screw slider module driven by a motor can meet the requirements for the second loading component to transfer the third mica sheet 30 and the first mica sheet 50. In a feasible implementation manner, two rows of load slots are provided on the carrier 932. One row of load slots is used to place the third mica sheet 30, and the other row of load slots is used to place the first mica sheet 50. The second loading component further includes an eighth loading driving member 9346 disposed on the seventh loading driving member 9343. Two third loading suction cups 9345 are provided on the eighth loading driving member 9346. The eighth loading driving member 9346 is configured to drive the two third loading suction cups 9345 to move in the horizontal direction to adjust the positions of the two third loading suction cups 9345, so that one of the two third loading suction cups 9345 can grasp any second mother sheet on the carrier 932, and the other can grasp any third mother sheet on the carrier 932, effectively improving the operation efficiency. The number of load slots in each row can be two, three or other numbers, which are not limited in this embodiment.

[0286] Exemplarily, when the number of load slots in each row is two, the eighth loading driving member 9346 can be set as a telescopic driving member, such as a linear cylinder.

[0287] Exemplarily, to prevent the pressing member 121 from interfering with the operation of the third loading mechanism, a pressing driving member 630 is also provided at the station where the third loading mechanism is located.

[0288] In this embodiment, referring to Figure 1 as shown, the assembling device for the heating element assembly further includes a blanking device 670, and the blanking device 670 is configured to transfer the assembled heating element assembly away from the carrier 100. The blanking device 670 is a prior art and is not the focus of protection of the present invention, and is not limited in this embodiment.

[0289] In a feasible implementation manner, the assembling device for the heating element assembly further includes a first detection device 650. The first detection device 650 is disposed at the station where the blanking device 670 is located. The first detection device 650 is configured to detect whether the assembled heating element assembly is qualified, so that the blanking device 670 can transfer the heating element assembly in a classified manner.

[0290] Exemplarily, the first detection device 650 can be set as a charge coupled device (CCD) detection module.

[0291] In a feasible embodiment, the assembly equipment of the thermal element assembly further includes a second detection device 660, which is disposed between the third feeding device 930 and the resistor feeding device 800. The second detection device 660 is used to detect whether the second mica sheet 10, the bimetallic member 20, the third mica sheet 30 and the first mica sheet 50 on the carrier 100 are missing or mis-installed. If there is no missing or mis-installation, the assembly equipment of the thermal element assembly can continue to complete the subsequent assembly of the thermal element assembly; if there is missing or mis-installation, the subsequent assembly process can be stopped, and the second mica sheet 10, the bimetallic member 20, the third mica sheet 30 and the first mica sheet 50 on the carrier 100 are removed.

[0292] Exemplarily, the second detection device 660 may be configured as a CCD detection module.

[0293] Of course, CCD detection modules may also be arranged at other workstations of the assembly equipment of the thermal element assembly, and this embodiment does not limit this.

[0294] Exemplarily, the specific operation steps of the assembly equipment of the thermal element assembly are:

[0295] S100, sequentially control the first loading device 910 to place the second mica sheet 10 in the first placement groove 111, the second loading device 920 to stack the bimetallic piece 20 on the second mica sheet 10, the third loading device 930 to place the third mica sheet 30 on the bimetallic piece 20 and place the first mica sheet 50 in the second placement groove 112, and the second detection device 660 to detect whether there is any missing or wrong installation on the carrier 100.

[0296] S200 , sequentially controlling the resistor loading device 800 to place N stacked resistor sheets 40 on the third mica sheet 30 , and the material moving device 940 to stack the first mica sheet 50 on the first section 41 of the resistor sheet 40 .

[0297] S300 , controlling the first welding device 200 to weld the first sections 41 of the N resistor sheets 40 and the bimetallic member 20 together.

[0298] S400 , controlling the shaping device 300 to bend the second sections 42 of the N resistor sheets 40 to form a folded portion 44 and a raised portion 43 , and clamping the first mica sheet 50 between the first sections 41 of the N resistor sheets 40 and the folded portion 44 .

[0299] S500, control the second welding device 400 to weld the upturned portions 43 of N resistor sheets 40 together.

[0300] S600, control the pressing device 700 to wind the second mica sheet 10 around the bimetal member 20, the third mica sheet 30, the first sections 41 of N resistor sheets 40, the first mica sheet 50, and the folded portions 44 of N resistor sheets 40.

[0301] S700, control the pressing device 500 to press the buckle 60 onto the second mica sheet 10.

[0302] S800, control the first detection device 650 to detect whether the assembled thermal element assembly is qualified, and control the blanking device 670 to transfer the assembled thermal element assembly away from the carrier 100.

[0303] For the specific implementation processes of the various devices in the above steps, reference can be made to the foregoing relevant descriptions, which will not be elaborated here.

[0304] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An assembly device for a heating element assembly, characterized in that, Comprising: A first welding device (200) for welding the first sections (41) of N resistor sheets (40) and a bimetallic member (20) together, where N ≥ 2; A shaping device (300) for bending the second sections (42) of the N resistor sheets (40) to form a folded portion (44) and a protruding portion (43), and clamping a first mica sheet (50) between the first sections (41) of the N resistor sheets (40) and the folded portion (44); A second welding device (400), the shaping device (300) being disposed between the first welding device (200) and the second welding device (400). The second welding device (400) includes a positioning mechanism (410), a clamping mechanism (420), and a welding mechanism (430). The clamping mechanism (420) is used to clamp the protruding portions (43) of the N resistor sheets (40), and the positioning mechanism (410) can abut against the ends of the protruding portions (43) of the N resistor sheets (40) clamped by the clamping mechanism (420). The welding mechanism (430) is used to weld the protruding portions (43) of the N resistor sheets (40) clamped by the clamping mechanism (420) together; A pressing device (500), the second welding device (400) being disposed between the shaping device (300) and the pressing device (500). The pressing device (500) is used to press a buckle (60) onto a second mica sheet (10), and wrap the second mica sheet (10) around the bimetallic member (20), a third mica sheet (30), the first sections (41) of the N resistor sheets (40), the first mica sheet (50), and the folded portions (44) of the N resistor sheets (40) stacked in sequence to form a thermal element assembly.

2. The assembling device of the heating element assembly according to claim 1, characterized in that The resistor sheet (40) is in a straight strip shape before being bent. The bimetallic member (20), the third mica sheet (30), the N resistor sheets (40), and the first mica sheet (50) are stacked in sequence, and the first mica sheet (50) is disposed on the first section (41) of the resistor sheet (40). The shaping device (300) includes: A pressing component (310), including a pressing member (311) and a first pressing driving member (312) connected to the pressing member (311). The pressing member (311) has a thin plate portion (3111), and the first pressing driving member (312) is used to drive the pressing member (311) to move in the vertical direction and press the thin plate portion (3111) onto the first mica sheet (50); A protruding component (320), including a protruding guiding member (321) and a bending driving member (322) connected to the protruding guiding member (321). The protruding guiding member (321) has a limiting inclined surface (3211), and the bending driving member (322) is used to drive the protruding guiding member (321) to press onto the first mica sheet (50) in the vertical direction; The rolling assembly (330) comprises a pressing wheel (331), a first rolling driving member (332) and a second rolling driving member (333) which are connected in sequence, wherein the first rolling driving member (332) is used to drive the pressing wheel (331) to move to the side of the resistor sheet (40) facing the third mica sheet (30), and the second rolling driving member (333) is used to drive the pressing wheel (331) to push the second sections (42) of N resistor sheets (40) to fold toward the first section (41), and bend the second sections (42) of the N resistor sheets (40) under the limit of the limit inclined surface (3211) to form the folded portion (44) and the warped portion (43).

3. The assembling device of the heating element assembly according to claim 1, characterized in that, The shaping device (300) further comprises a first shaping mechanism (301), wherein the first shaping mechanism (301) is used to bend the second sections (42) of the N resistor sheets (40) so that the resistor sheets (40) are in an angled shape.

4. The assembling device of the heating element assembly according to claim 3, characterized in that, The first shaping mechanism (301) comprises: A pressing assembly (340), comprising a pressing driving member (341) and a pressing member (342) connected to the pressing driving member (341), wherein the pressing driving member (341) is used to drive the pressing member (342) to press the second section (42) of the resistor (40) in a vertical direction; A first shaping component (350) comprises a first shaping driving member (351) and a first top block (352) connected to the first shaping driving member (351), wherein the first shaping driving member (351) is used to drive the first top block (352) to push the second section (42) of the resistor (40) away from a side of the pressing member (342); The second shaping component (360) comprises a second shaping driving member (361) and a second top block (362) connected to the second shaping driving member (361), wherein the second top block (362) is located between the pressing member (342) and the first top block (352), and the second shaping driving member (361) is used to drive the second top block (362) to push the second section (42) of the resistor (40) away from the side of the pressing member (342).

5. The assembling device of the heating element assembly according to claim 1, characterized in that, The positioning mechanism (410) comprises: A positioning member (411), comprising a shaft (4111) and a positioning portion (4112); A first support member (412), wherein the first support member (412) is provided with a positioning hole (4121) extending along a first direction, and the shaft (4111) is rotatably inserted into the positioning hole (4121); a first locking member, disposed on the first supporting member (412), the first locking member being used to fix the shaft (4111) in the positioning hole (4121); A first positioning driving member (413) connected to the first supporting member (412), the first positioning driving member (413) being used to drive the positioning member (411) to move along a second direction and to press the positioning portion (4112) against the end of the tilting portion (43); The second positioning driving member (414) is connected to the first positioning driving member (413). The second positioning driving member (414) is configured to drive the positioning member (411) to move in a first direction and shield the ends of the upturned portions (43) of N of the resistor sheets (40) by the positioning portion (4112) in a second direction.

6. The assembly device for the heating element assembly according to claim 1, characterized in that, The clamping mechanism (420) includes: A clamping seat (421); An intermediate member (422) is disposed on the clamping seat (421), and the position of the intermediate member (422) relative to the clamping seat (421) is adjustable in a third direction; A hinge seat (423) is hinged to the intermediate member (422), and the rotation axis of the hinge seat (423) is parallel to the first direction; A second locking member is connected to both the clamping seat (421) and the intermediate member (422), and the second locking member is configured to fix the intermediate member (422) to the clamping seat (421); A third locking member is connected to both the intermediate member (422) and the hinge seat (423), and the third locking member is configured to fix the hinge seat (423) to the intermediate member (422); A clamping assembly (424) includes a first clamping driving member (4241), a second clamping driving member (4242) connected to the first clamping driving member (4241), and two clamping blocks (4243) connected to the second clamping driving member (4242). The first clamping driving member (4241) is disposed on the hinge seat (423). The first clamping driving member (4241) is configured to drive the two clamping blocks (4243) to move in the first direction, and the second clamping driving member (4242) is configured to drive the two clamping blocks (4243) to clamp the upturned portions (43) of N of the resistor sheets (40).

7. The assembling device of the heating element assembly according to claim 1, characterized in that, The assembling device of the thermal element assembly further includes a workbench (610). The first welding device (200), the shaping device (300), the second welding device (400), and the pressing device (500) are all disposed on the workbench (610), and the positions of the positioning mechanism (410) and the clamping mechanism (420) relative to the workbench (610) are adjustable in a fourth direction.

8. The assembling device of the heating element assembly according to claim 1, characterized in that, The welding mechanism (430) includes: A welding bracket (431); A welding seat (432) is rotatably connected to the welding bracket (431), and the rotation axis of the welding seat (432) is parallel to the first direction; A fourth locking member (433) is disposed on the welding seat (432), and the fourth locking member (433) is configured to fix the welding seat (432) to the welding bracket (431); The welding assembly includes a first welding driving member (4341), a second welding driving member (4342) connected to the first welding driving member (4341), and two electrode clamping blocks (4343) connected to the second welding driving member (4342). The first welding driving member (4341) is disposed on the welding base (432). The first welding driving member (4341) is used to drive the two electrode clamping blocks (4343) to move linearly, and the extension line of the moving track of the electrode clamping blocks (4343) is perpendicular to and intersects with the rotation axis of the welding base (432). The second welding driving member (4342) is used to drive the two electrode clamping blocks (4343) to clamp and weld the upturned portions (43) of N resistor sheets (40).

9. The assembling device of the heating element assembly according to claim 8, characterized in that, The welding mechanism (430) further includes a guide wheel (435). An arc-shaped chute (4311) is provided on the welding bracket (431). The guide wheel (435) is disposed in the arc-shaped chute (4311), and the fourth locking member (433) passes through the welding base (432) and the guide wheel (435) and can abut against the bottom of the arc-shaped chute (4311). The fourth locking member (433) is threadedly connected to the welding base (432).

10. The assembling device of the heating element assembly according to claim 1, characterized in that, The length direction of the second mica sheet (10) is perpendicular to the length direction of the bimetal member (20), and both ends of the second mica sheet (10) protrude from the bimetal member (20). The assembling device for the thermal element assembly further includes a pressing device (700) disposed between the shaping device (300) and the second welding device (400). The pressing device (700) is used to wrap the second mica sheet (10) around the bimetal member (20), the third mica sheet (30), the first segments (41) of N resistor sheets (40), the first mica sheet (50), and the folded portions (44) of N resistor sheets (40).

11. The assembling device of the heating element assembly according to claim 1, characterized in that, The assembling device for the thermal element assembly further includes: A carrier (100), including a carrier table (110) and a pressing assembly (120). A first placement groove (111) is provided on the carrier table (110). The first placement groove (111) is used to place the second mica sheet (10), the bimetal member (20), the third mica sheet (30), the N resistor sheets (40), and the first mica sheet (50). The pressing assembly (120) includes a pressing member (121), a pressing link (122), and a pressing elastic member (123). The pressing member (121) is hinged to the carrier table (110). The pressing member (121) includes a pressing portion (1211). The first end of the pressing link (122) is connected to the pressing member (121). The pressing elastic member (123) is disposed between the carrier table (110) and the pressing member (121). The pressing elastic member (123) makes the pressing portion (1211) always have a tendency to rotate towards the first placement groove (111). A transfer device (620) is provided with the carrier stage (110) thereon. Along the transfer direction of the transfer device (620), the first welding device (200), the shaping device (300), the second welding device (400) and the pressing device (500) are arranged in sequence; Pressing driving members (630) are respectively provided at the work positions where the shaping device (300) and the pressing device (500) are located. The pressing driving members (630) are detachably connected to the second ends of the pressing link rods (122), and the pressing driving members (630) are used to drive the pressing link rods (122) to drive the pressing members (121) to rotate.

12. The assembling device of the heating element assembly according to claim 1, characterized in that, The assembling equipment for the heating element assembly further includes a resistor loading device (800), and the resistor loading device (800) includes a first transplanting mechanism (810) and a first tray support (820), a first feeding mechanism (830), a first cutting mechanism (840), an alignment mechanism (850), and a pre-welding mechanism (860) arranged in sequence; The first tray support (820) is used for placing the resistor trays; The first feeding mechanism (830) is used for conveying the resistor tape of the resistor tray to the alignment mechanism (850); The first cutting mechanism (840) is used for cutting the resistor tape into the resistor chips (40), and the cut resistor chips (40) fall onto the alignment mechanism (850); N resistor chips (40) can be stacked on the alignment mechanism (850), and the alignment mechanism (850) is used for aligning the N resistor chips (40); The pre-welding mechanism (860) is used for welding the first sections (41) of the N resistor chips (40) together; The first transplanting mechanism (810) is used for stacking the N resistor chips (40) welded by the pre-welding mechanism (860) onto the third mica sheet (30).

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