Relay composite contact and processing die thereof

Abstract

The application provides a relay composite contact and a processing die thereof, and relates to the technical field of relay contacts, which comprises a main flat plate, an externally connected square plate, a second riveting hole, a column contact, a deformation plate, a square contact plate, an upper die assembly, a lower die assembly and a feeding assembly.

Description

Technical Field

[0001] This invention relates to the field of relay contact technology, and more specifically to a relay composite contact and its processing mold. Background Technology

[0002] As a core component in the field of electrical control, the reliability of relay switching, the stability of conductivity, and the service life directly depend on the structural design and machining precision of the contacts. The contacts, as the key components in a relay for realizing circuit connection and disconnection, must maintain excellent conductivity, contact stability, and fatigue resistance under high-frequency switching and high-load conditions.

[0003] Traditional contact components often use a single contact or a simple flat plate structure, which has the problems of small contact area and high contact resistance. During high-frequency switching, contact oxidation and ablation are prone to occur, resulting in poor contact.

[0004] Although some contact components have been equipped with multi-contact structures, the large gaps between the components affect the stability of the contact. At the same time, the current multi-contact components require the copper raw material to be stamped on the copper strip during the die stamping production process. Then the copper raw material is transferred to multiple riveting equipment to rivet each contact point in sequence. The operation process is cumbersome and the processing efficiency is low. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a relay composite contact and its processing mold, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A relay composite contact includes a main plate with a tapered end; first riveting holes are symmetrically formed on the surface of the main plate; and heat dissipation holes are formed inside the main plate.

[0008] An outer square piece is flush with the end of the main plate; a second riveting hole is provided at the end of the outer square piece.

[0009] The column contact is riveted into the second rivet hole;

[0010] The deformable plate includes a main vertical plate, connecting vertical plates, inclined plates, and split vertical plates; the other end of the main plate is provided with vertically symmetrical split vertical plates, the bottom end of each set of vertical plates is connected to a set of inclined plates, the top end of each set of inclined plates is connected to a set of connecting vertical plates, the top ends of the two sets of connecting vertical plates are connected to the main vertical plate, and the main vertical plate and the split vertical plates are arranged in parallel; the main vertical plate has symmetrically opened assembly holes inside;

[0011] The square contact plate covers the surface of the main plate. The top view of the square contact plate is convex. The bottom surface of the square contact plate is symmetrically provided with rivet posts, which are riveted into the first rivet hole. One end surface of the square contact plate is symmetrically provided with a mating notch. There is a protrusion between the two sets of notches. The connecting vertical plate passes through the mating notch vertically, and the protrusion is inserted between the two sets of connecting vertical plates.

[0012] The machining molds for relay composite contact pieces include:

[0013] The upper mold assembly includes a middle mold plate, an upper mold plate is installed at a distance from the top of the middle mold plate, the upper mold plate and the middle mold plate are connected by a first spring rod, the upper mold plate and the middle mold plate are in the processing gap, and a stamping block, a first cutting plate, an upper bending component, a square contact piece feeding component and a second cutting plate are arranged sequentially along the feeding direction in the processing gap;

[0014] The lower mold assembly includes a lower template. Inside the lower template, along the conveying direction, there are sequentially arranged a column contact riveting component, a first lower bending component, a square contact riveting component, and a second lower bending component. The inner output end of the lower template is provided with a stepped first clearance groove. The outer end of the first clearance groove is an open structure. The first lower bending component, the square contact riveting component, and the second lower bending component are all located in the first clearance groove.

[0015] The feeding assembly, installed at the input end of the lower die assembly, is used to transport the copper strip.

[0016] The stamping block is used to stamp out semi-finished parts from the copper strip; one end of the semi-finished part is a main flat plate and an outer square plate, and the other end is a flat plate; both the outer square plate and the flat plate are connected to the copper strip.

[0017] The contact riveting component mates to install the column contact inside the outer square piece; the first cutting plate is used to separate the flat piece from the copper strip; the upper bending component is used to bend the flat piece downward to obtain the first bent piece; the first lower bending component is used to bend the first bent piece upward to obtain the second bent piece; the square contact piece feeding component and the square contact piece riveting component mate to install the square contact piece on the main plate; the second lower bending component is used to bend the second bent piece upward to obtain the deformable piece; the second cutting plate is used to separate the outer square piece from the copper strip to obtain the contact element;

[0018] The material collection box is installed at the output end of the lower mold assembly to collect the machined contact parts.

[0019] Furthermore, the copper strip has push holes equidistantly opened at both edges of its surface. The feeding assembly includes a feeding conveyor wheel, which is symmetrically arranged at the input end of the lower template. Pushing columns are symmetrically arranged on the outer wall of the feeding conveyor wheel, and the pushing columns are inserted into the push holes.

[0020] Furthermore, the column contact riveting component includes a feeding vibratory plate, a lower top block, and an upper pressure column. The lower template has a first feeding notch, and the output end of the feeding vibratory plate has a first feeding guide rail that extends into the first feeding notch. The column contact is positioned in an inverted T-shape within the first feeding guide rail. The output end of the first feeding guide rail has a top block, and a groove is formed at the position opposite to the first feeding guide rail on the top block. The bottom surface of the top block has a slider that slides vertically within the first feeding notch. The bottom side of the block is connected to the first vertical toothed plate, and the side of the vertical toothed plate is meshed with the central gear. The outer side of the central gear is meshed with the second vertical toothed plate. The bottom end of the second vertical toothed plate is provided with a second spring rod. The outer wall of the middle template is provided with a pressure block, which is located directly above the second vertical toothed plate. The bottom surface of the upper template is provided with a first extrusion column, and the bottom end of the first extrusion column slides through the middle template. The top material block is used to insert the column contact from bottom to top into the first riveting hole of the main plate. The first extrusion column is the extended part of the lower pressure column contact.

[0021] Furthermore, the upper bending component includes a first positioning frame, inside which a flipping column is rotatably mounted. A right-angle groove is provided at the bottom of the flipping column. A first folding plate is provided on one side of the bottom of the right-angle groove, and an abutment plate is provided on the bottom of the other side of the right-angle groove. The abutment plate is horizontally placed at the bottom of the flipping column, and a third spring rod is provided on the top surface of the abutment plate. The third spring rod is located on the bottom surface of the upper template. A straightening vertical plate is provided on the output side of the first positioning frame, and the straightening vertical plate is vertically located on the bottom surface of the upper template. When the upper template is pressed down, the abutment plate abuts against the flipping column and rotates, so that the first folding plate rotates and extends into the first clearance groove and abuts against the flat piece. The abutment plate and the straightening vertical plate are bent to form an L-shaped first bent piece.

[0022] Furthermore, the first lower bending component includes a second folding plate, an abutting inclined block, and a partition plate. The second folding plate is rotatably placed within a second positioning frame, and a first driven gear is installed at the rotatable connection. The second positioning frame is located within a first clearance groove. The bottom of each set of first driven gears is meshed with an elastic transverse toothed plate. A receiving groove is provided inside the lower template, and the receiving groove is located opposite to the heat dissipation holes below. Two sets of elastic transverse toothed plates are horizontally slidably placed within the lower template. A mating inclined block is installed inside the receiving groove, and the inner ends of the two sets of elastic transverse toothed plates are connected to the mating inclined block. The bottom surface of the upper template is provided with an abutting inclined block and a partition plate, and the partition plate is spaced apart and located outside the abutting inclined block. The second folding plate is used to bend the horizontal part of the first bent piece upward into an inclined state, and the partition plate is used to press down and position the vertical part of the first bent piece.

[0023] Furthermore, the square contact piece feeding component includes a second feeding guide rail, which is used to linearly feed the square contact piece; a second feeding notch is provided at the position opposite to the upper template and the second feeding guide rail, the second feeding guide rail extends into the second feeding notch, and the inner end of the second feeding notch is connected to the inner clamping hole.

[0024] The output end of the second feeding guide rail is equipped with a pushing component, which includes a vertical bracket. Horizontally arranged baffles are symmetrically arranged on the inner side of the middle of the vertical bracket. Push plates are rotatably connected to both ends of the vertical bracket, and torsion springs are installed at the rotatable connection points. Positioning plates are provided on the outer sides of both ends of the vertical bracket. The positioning plates stop the push plates from the rear. The positioning plates extend outward from the top of the push plates. A drive rod is provided on the outer side of the middle of the vertical bracket. When the vertical bracket moves outward, the push plates are squeezed and rotated to retract by the bottom surface of the square contact pieces. When the vertical bracket moves inward, the push plates push out a set of square contact pieces.

[0025] The inner clamping hole is equipped with clamping components, including elastic clamping plates and elastic pressure plates. The elastic clamping plates are symmetrically arranged in the inner clamping hole. The two sets of elastic clamping plates are used to clamp the ejected square contact piece. The elastic pressure plate is located on the bottom surface of the upper template and is used to press down the square contact piece.

[0026] Furthermore, the square contact piece riveting component includes a first abutting vertical rod, a first elastic longitudinal rod, and a pressing block. The first abutting vertical rod is vertically disposed on the bottom surface of the upper template and passes through the middle template. The first elastic longitudinal rod is slidably placed in the first clearance groove. A first inclined block is provided at the bottom end of the first abutting vertical rod. A second inclined block is vertically disposed at the outer end of the first elastic longitudinal rod and a third inclined block is vertically disposed at the inner end. The pressing block is T-shaped and slidably disposed in the lower template. The bottom of the pressing block is inclined. The third inclined block is fitted against the bottom of the pressing block. A second pressing column is vertically and symmetrically disposed on the surface of the pressing block. The second pressing column passes through the lower template and is positioned at the bottom of the insert column.

[0027] Furthermore, the second lower bending component includes a second abutting vertical rod, a second elastic longitudinal rod, a third folding plate, and a second positioning frame. The top of the second positioning frame is rotatably connected to the third folding plate, and a second driven gear is installed at the rotatable connection. The bottom of the second driven gear is meshed with a contact tooth plate. The outer end of the contact tooth plate is connected to the second elastic longitudinal rod. The outer end of the second elastic longitudinal rod abuts against the bottom end of the second abutting vertical rod. An inner stop block is provided on the inner side of the second positioning block to support the inclined plate. The third folding plate is used to bend the end of the second bending plate into the main vertical plate and the connecting vertical plate.

[0028] Furthermore, the surface of the lower template is provided with a second clearance groove for the clearance post contact point, the surface of the lower template is provided with a third clearance groove for the clearance post, and the output end of the middle template is provided with a corner notch for the clearance deformation piece.

[0029] This invention provides a relay composite contact and its processing mold. Compared with the prior art, it has the following advantages:

[0030] 1. The cylindrical contacts and square contacts form a dual contact structure. The cylindrical contacts ensure the core conductive path, while the square contacts increase the contact area and reduce contact resistance.

[0031] 2. The interlocking fit between the protrusion and the connecting vertical plate prevents relative displacement of the contact parts during operation, ensuring precise switching action and improving contact stability; the through fit between the mating notch and the connecting vertical plate enables precise positioning of the deformable piece and the square contact piece, ensuring the overall structure is regular.

[0032] 3. The feeding assembly automatically conveys the copper strip. The square contact feeding component, square contact riveting component, and column contact riveting component realize the automatic feeding and assembly of square contacts and column contacts, respectively, without manual intervention, reducing labor intensity. At the same time, the feeding and riveting process of square contacts and column contacts is integrated into the copper strip stamping die, eliminating the need for repeated riveting. The assembly of square contacts and column contacts can be completed during the copper strip stamping process, which greatly improves the processing efficiency of contact parts. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the contact body structure of the present invention is shown;

[0035] Figure 2 This diagram shows a schematic view of the split structure of the contact body of the present invention.

[0036] Figure 3 This diagram shows a schematic representation of the split structure of the contact body of the present invention from another perspective.

[0037] Figure 4 A schematic diagram of the overall structure of the processing mold of the present invention is shown;

[0038] Figure 5 A schematic diagram of the connection structure between the template and the copper strip of the present invention is shown;

[0039] Figure 6 It shows Figure 5 A magnified structural diagram at point A;

[0040] Figure 7 A schematic diagram of the copper strip structure of the present invention is shown;

[0041] Figure 8 A schematic diagram of the template structure of the present invention is shown;

[0042] Figure 9 A schematic diagram of the column contact riveting component of the present invention is shown;

[0043] Figure 10A schematic diagram of the first lower bending component of the present invention is shown;

[0044] Figure 11 A schematic diagram of the riveting component for the contact piece of the present invention is shown;

[0045] Figure 12 A schematic diagram of the second lower bending component structure of the present invention is shown;

[0046] Figure 13 It shows Figure 8 A magnified structural diagram at point B;

[0047] Figure 14 The diagram shows the upper and middle template structures of the present invention;

[0048] Figure 15 A schematic diagram of the bending component structure of the present invention is shown;

[0049] Figure 16 A schematic diagram of the structure of the contact plate feeding component of the present invention is shown;

[0050] As shown in the figure:

[0051] 100. Contact body; 110. Main plate; 111. First riveting hole; 112. Heat dissipation hole; 120. External square plate; 121. Second riveting hole; 130. Column contact; 140. Deformation plate; 141. Main vertical plate; 142. Connecting vertical plate; 143. Dividing oblique plate; 144. Dividing vertical plate; 150. Square contact plate; 151. Riveting post; 152. Butt joint notch; 153. Protrusion.

[0052] 200. Mold body; 210. Upper template; 211. First spring rod; 212. Stamping block; 213. First cutting plate; 214. Second cutting plate; 220. Middle template; 221. Corner notch; 240. Lower template; 241. First clearance groove; 242. Second clearance groove; 243. Third clearance groove; 250. Feeding assembly; 251. Feeding conveyor wheel; 252. Pushing column; 230. Collection box.

[0053] 300. Column contact riveting component; 310. Feeding vibratory feeder; 320. First feeding guide rail; 321. First feeding notch; 330. Top material block; 331. Slot; 340. Slider; 341. First vertical toothed plate; 350. Central gear; 360. Second vertical toothed plate; 361. Second spring rod; 370. Pressure block; 380. First extrusion column.

[0054] 400. Upper bending component; 410. First positioning frame; 420. Flipping column; 421. Right-angle groove; 430. First folding plate; 440. Contact plate; 441. Third spring rod; 450. Correcting vertical plate.

[0055] 500. First lower bending component; 510. Second positioning frame; 520. Second folding plate; 521. First driven gear; 530. Elastic transverse toothed plate; 540. Mating wedge block; 541. Receiving groove; 550. Abutting wedge block; 560. Partition plate.

[0056] 600. Square contact plate feeding component; 610. Second feeding guide rail; 611. Second feeding notch; 612. Inner clamping hole; 620. Pushing component; 621. Vertical bracket; 622. Stop bar; 623. Push plate; 624. Positioning plate; 625. Drive rod; 630. Clamping component; 631. Elastic clamping plate; 632. Elastic pressure plate.

[0057] 700. Square contact piece riveting component; 710. First abutting vertical rod; 711. First inclined block; 720. First elastic longitudinal rod; 721. Second inclined block; 722. Third inclined block; 730. Extrusion block; 731. Second extrusion column.

[0058] 800. Second lower bending component; 810. Second abutting vertical rod; 820. Third positioning frame; 830. Third folding plate; 831. Second driven gear; 840. Contact toothed plate; 850. Second elastic longitudinal rod; 860. Inner stop block.

[0059] 900, copper strip; 910, push hole; 920, semi-finished part; 930, flat piece; 940, first bent piece; 950, second bent piece. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Example 1

[0062] Combination Figures 1-3As shown, the present invention provides a relay composite contact, comprising: a main plate 110, one end of which has a tapered constriction structure; first riveting holes 111 symmetrically opened on the surface of the main plate 110; heat dissipation holes 112 opened inside the main plate 110; an outer square plate 120, which is flush with the constriction end of the main plate 110; a second riveting hole 121 opened at the end of the outer square plate 120; a column contact 130, which is riveted into the second riveting hole 121; a deformable piece 140, which includes a main vertical piece 141, a connecting vertical piece 142, a split inclined piece 143, and a split vertical piece 144; the other end of the main plate 110 is vertically symmetrically provided with split vertical pieces 144, and the bottom end of each set of split vertical pieces 144 is connected to a set of inclined split inclined pieces 144. 43. Each set of inclined plates 143 is connected to a set of connecting vertical plates 142 at its top. The tops of the two sets of connecting vertical plates 142 are connected to the main vertical plate 141. The main vertical plate 141 is arranged parallel to the sub-vertical plates 144. The main vertical plate 141 has symmetrically opened assembly holes inside. A square contact plate 150 covers the surface of the main plate 110. The top view of the square contact plate 150 is convex. The bottom surface of the square contact plate 150 is symmetrically provided with rivet posts 151, which are riveted into the first rivet hole 111. One end surface of the square contact plate 150 is symmetrically provided with a mating notch 152. There is a protrusion 153 between the two sets of mating notches 152. The connecting vertical plate 142 vertically penetrates the mating notch 152, and the protrusion 153 is inserted between the two sets of connecting vertical plates 142.

[0063] In the above scheme:

[0064] The column contact 130 and the square contact 150 form a double contact structure. The column contact 130 ensures the core conductive path, while the square contact 150 increases the contact area and reduces the contact resistance.

[0065] The engagement of the protrusion 153 and the connecting vertical piece 142 prevents relative displacement of the contact parts during operation, ensuring precise switching action and improving contact stability; the through engagement of the mating notch 152 and the connecting vertical piece 142 enables precise positioning of the deformable piece 140 and the square contact piece 150, ensuring the overall structure is regular.

[0066] The heat dissipation holes 112 inside the main plate 110 can quickly dissipate the heat generated during contact, avoid local overheating that could lead to metal oxidation or elastic failure, and extend the service life of the contact components.

[0067] The square contact piece 150 is riveted and fixed to the first riveting hole 111 by the rivet post 151, and the post contact 130 is riveted to the second riveting hole 121. The multiple riveting structure ensures that the components are firmly connected and there is no risk of loosening.

[0068] The inclined plate 143 of the deformation plate 140 is designed to be inclined. Together with the main vertical plate 141 and the rigid support of the connecting vertical plate 142, it forms an elastic deformation structure. It can be quickly reset during the switching process to avoid contact sticking. The parallel layout of the inclined vertical plate 144 and the main vertical plate 141 ensures uniform force during deformation and improves fatigue resistance.

[0069] Example 2

[0070] like Figures 4-16 As shown, the processing mold for the relay composite contact piece includes: a mold body 200, which includes an upper mold assembly and a lower mold assembly; the upper mold assembly includes a middle mold plate 220, with an upper mold plate 210 installed at a distance from the top of the middle mold plate 220, and the upper mold plate 210 and the middle mold plate 220 connected by a first spring rod 211, with a processing gap between the upper mold plate 210 and the middle mold plate 220, and within the processing gap, along the feeding direction, a stamping block 212, a first cutting plate 213, an upper bending component 400, a square contact piece feeding component 600, and a second cutting plate 214 are arranged sequentially; the lower mold assembly... It includes a lower template 240, inside which, along the conveying direction, are sequentially arranged a column contact riveting component 300, a first lower bending component 500, a square contact riveting component 700, and a second lower bending component 800; the internal output end of the lower template 240 is provided with a stepped first clearance groove 241, the outer end of which is open, and the first lower bending component 500, the square contact riveting component 700, and the second lower bending component 800 are all disposed in the first clearance groove 241; and a feeding assembly 250, which is installed at the input end of the lower template assembly and is used to convey copper strip. 900; Stamping block 212 is used to stamp out a semi-finished part 920 from the copper strip 900; one end of the semi-finished part 920 is a main flat plate 110 and an outer square plate 120, and the other end is a flat plate 930; both the outer square plate 120 and the flat plate 930 are connected to the copper strip 900; the post contact riveting component 300 cooperates to install the post contact 130 into the outer square plate 120; the first cutting plate 213 is used to separate the flat plate 930 from the copper strip 900; the upper bending component 400 is used to bend the flat plate 930 downward to obtain the first bent plate 940; the first lower bending component 500 is used to bend the first bent plate 940 upward. 0, to obtain the second bent piece 950; the square contact piece feeding component 600 and the square contact piece riveting component 700 cooperate to install the square contact piece 150 on the main plate 110; the second lower bending component 800 is used to bend the second bent piece 950 upward to obtain the deformed piece 140; the second cutting plate 214 is used to separate the outer square piece 120 from the copper strip 900 to obtain the contact body 100; the collecting box 230 is installed at the output end of the lower mold assembly to collect the processed contact body 100; the winding roller is installed at the output end of the collecting box 230 to wind up the copper strip 900 that has removed the contact body 100.

[0071] In the above scheme:

[0072] The upper and lower die assemblies are sequentially equipped with functional components such as stamping, riveting, bending, and cutting along the feeding direction, realizing fully automated processing from copper strip 900 raw material to finished contact body 100, without the need for intermediate transfer, which greatly improves production efficiency;

[0073] Each processing component is arranged in an orderly manner along the feeding direction, with the copper strip 900 as a unified positioning reference to avoid reference deviations in step-by-step processing;

[0074] The feeding assembly 250 automatically conveys the copper strip 900. The square contact feeding component 600, the square contact riveting component 700, and the column contact riveting component 300 respectively realize the automatic feeding and assembly of the square contact 150 and the column contact 130 without manual intervention, reducing labor intensity. At the same time, the feeding and riveting process of the square contact 150 and the column contact 130 is integrated into the stamping die of the copper strip 900, eliminating the need for repeated riveting. The assembly of the square contact 150 and the column contact 130 can be completed during the stamping process of the copper strip 900, which greatly improves the processing efficiency of the contact body 100.

[0075] In this embodiment, the copper strip 900 has push holes 910 equidistantly opened at both edges of its surface. The feeding assembly 250 includes a feeding conveyor wheel 251, which is symmetrically arranged at the input end of the lower template 240. The outer wall of the feeding conveyor wheel 251 is symmetrically provided with push posts 252, which are inserted into the push holes 910.

[0076] In the above scheme:

[0077] The push column 252 of the feeding conveyor wheel 251 is inserted into the push hole 910 on the edge of the copper strip 900 to form an interlocking feeding structure, which avoids slippage or deviation during feeding, ensures that the copper strip 900 is accurately conveyed along the set direction, and ensures the synchronization of each processing step.

[0078] The push holes 910 are evenly spaced, and the cooperation between the push column 252 and the push holes 910 ensures that the feeding step distance is uniform and consistent, which ensures the accurate processing position of processes such as stamping, riveting, and bending, reduces product size deviation, and improves the consistency of mass production.

[0079] In this embodiment, the column contact riveting component 300 includes a feeding vibratory plate 310, a top material block 330, and a first extrusion column 380. The lower template 240 has a first feeding notch 321. The output end of the feeding vibratory plate 310 is provided with a first feeding guide rail 320, which extends into the first feeding notch 321. The column contact 130 is placed in an inverted T shape within the first feeding guide rail 320. The output end of the first feeding guide rail 320 is provided with a top material block 330. A groove 331 is provided at the position opposite to the first feeding guide rail 320 on the top material block 330. A slider 340 is provided on the bottom surface of the top material block 330. The slider 340 slides vertically within the first feeding notch 321. The bottom side of the slider 340 is connected to a first vertical toothed plate 341. One side of the first vertical toothed plate 341 is meshed with a central gear 350, and the outer side of the central gear 350 is meshed with a second vertical toothed plate. The bottom end of the second vertical toothed plate 360 ​​is provided with a second spring rod 361. The outer wall of the middle template 220 is provided with a pressure block 370, which is located directly above the second vertical toothed plate 360. The bottom surface of the upper template 210 is provided with a first extrusion column 380, the bottom end of which slides through the middle template 220. The top material block 330 is used to insert the column contact 130 from bottom to top into the second riveting hole 121 of the outer square piece 120. The first extrusion column 380 is used with the extended part of the lower pressure column contact 130.

[0080] In the above scheme: the feeding vibratory plate 310 realizes the orderly output of the column contact 130, the first feeding guide rail 320 provides directional conveying, and the groove 331 of the top material block 330 accurately receives the column contact 130, avoiding jamming or misalignment during the feeding process and ensuring the continuous operation of the riveting process; the top material block 330 pushes the column contact 130 upward through the gear transmission structure, so that the column contact 130 is accurately inserted into the second riveting hole 121, ensuring that the column contact 130 and the outer square piece 120 are coaxially set, avoiding riveting tilt; the middle template 220 presses down the positioning copper strip 900 to further fix the workpiece position and improve the riveting accuracy; the first extrusion column 380 presses down the extended part of the column contact 130, so that the column contact 130 undergoes plastic deformation and fits tightly with the second riveting hole 121, making the riveting firm and without loosening.

[0081] In this embodiment, the upper bending component 400 includes a first positioning frame 410, inside which a flipping column 420 is rotatably mounted. A right-angle groove 421 is formed at the bottom of the flipping column 420. A first folding plate 430 is provided on one side of the bottom of the right-angle groove 421, and an abutment plate 440 is provided on the bottom of the other side of the right-angle groove 421. The abutment plate 440 is horizontally placed at the bottom of the flipping column 420, and a third spring rod 441 is provided on the top surface of the abutment plate 440, which is located on the bottom surface of the upper template 210. A straightening vertical plate 450 is provided on the output side of the first positioning frame 410, and is vertically positioned on the bottom surface of the upper template 210. When the upper template 210 is pressed down, the abutment plate 440 abuts against the flipping column 420 and rotates, causing the first folding plate 430 to rotate and extend into the first clearance groove 241 and abut against the flat piece 930. The abutment plate 440 and the straightening vertical plate 450 are bent to form an L-shape. The first bend of the type is 940.

[0082] In the above scheme: when the upper template 210 is pressed down, the contact plate 440 drives the flipping column 420 to rotate. The first bending plate 430 first pre-bends the flat piece 930 into an approximate L-shape, and then the straightening vertical plate 450 precisely corrects it to a 90° right angle. The step-by-step bending reduces the springback of the workpiece and ensures that the angle of the first bent piece 940 is accurate. The first positioning frame 410 provides stable support for the flipping column 420, and the right angle groove 421 constrains the movement trajectory of the first bending plate 430, ensuring that the bending action is accurate and controllable and improving the bending consistency.

[0083] In this embodiment, the first lower bending component 500 includes a second bending plate 520, an abutting inclined block 550, and a partition plate 560. The second bending plate 520 is rotatably positioned within the second positioning frame 510, and a first driven gear 521 is installed at the rotatable connection. The second positioning frame 510 is located within the first clearance groove 241. The bottom of each set of first driven gears 521 is meshed with an elastic transverse toothed plate 530. A receiving groove 541 is provided inside the lower template 240, and the receiving groove 541 is located opposite to the heat dissipation hole 112 below. Two sets of elastic horizontal toothed plates 530 are horizontally slidably placed in the lower template 240. The receiving groove 541 is equipped with a matching inclined block 540. The inner ends of the two sets of elastic horizontal toothed plates 530 are connected to the matching inclined block 540. The bottom surface of the upper template 210 is provided with an abutting inclined block 550 and a partition 560. The partition 560 is spaced apart on the outside of the abutting inclined block 550. The second folding plate 520 is used to bend the horizontal part of the first bent piece 940 upward into an inclined state. The partition 560 is used to press down and position the vertical part of the first bent piece 940.

[0084] In the above scheme: the anti-clamping block 550 drives the elastic horizontal toothed plate 530 in conjunction with the clamping block 540, thereby driving the second folding plate 520 to rotate, so as to achieve precise bending of the horizontal part of the first bent piece 940 with consistent tilt angle, ensuring that the structure of the divided inclined piece 143 of the deformable piece 140 is regular and adaptable to subsequent assembly requirements; the partition plate 560 is inserted into the vertical part of the first bent piece 940 to form a rigid support, avoiding deformation of the vertical part during secondary bending, ensuring that the vertical section of the first bent piece 940 remains regular, and ensuring the overall structural stability.

[0085] In this embodiment, the square contact piece feeding component 600 includes a second feeding guide rail 610, which is used to linearly feed the square contact piece 150. A second feeding notch 611 is provided at the position opposite to the upper template 210 and the second feeding guide rail 610. The second feeding guide rail 610 extends into the second feeding notch 611, and the inner end of the second feeding notch 611 is connected to an inner clamping hole 612. A pushing component 620 is provided at the output end of the second feeding guide rail 610. The pushing component 620 includes a vertical bracket 621. Horizontally arranged baffles 622 are symmetrically arranged on the inner side of the middle portion of the vertical bracket 621. Push plates 623 are rotatably connected to both ends of the vertical bracket 621, and torsion springs are installed at the rotatable connection points. Positioning devices are provided on the outer sides of both ends of the vertical bracket 621. Plate 624, positioning plate 624 pushes plate 623 from the rear side stop, the top of the push plate 623 extends outward from the positioning plate 624, and the middle outer side of the vertical bracket 621 is provided with a drive rod 625; when the vertical bracket 621 moves outward, the push plate 623 is squeezed and rotated by the bottom surface of the square contact piece 150 and retracts; when the vertical bracket 621 moves inward, the push plate 623 pushes out a set of square contact pieces 150; a clamping component 630 is installed inside the inner clamping hole 612, the clamping component 630 includes an elastic clamping plate 631 and an elastic pressure plate 632, the elastic clamping plates 631 are symmetrically arranged in the inner clamping hole 612, the two sets of elastic clamping plates 631 are used to clamp the pushed square contact pieces 150, the elastic pressure plate 632 is provided on the bottom surface of the upper template 210, the elastic pressure plate 632 is used to press down the square contact pieces 150.

[0086] In the above scheme: the push plate 623 of the pushing component 620 is reset by a torsion spring, pushing out only one set of square contact pieces 150 at a time to avoid multiple pieces sticking together; the outward and inward movement of the vertical bracket 621 works together to achieve orderly separation and conveying of the square contact pieces 150, eliminating the problem of material jamming during feeding; the elastic clamping plate 631 symmetrically clamps the square contact pieces 150 to ensure that the square contact pieces 150 have a regular posture; the inner clamping hole 612 is precisely aligned with the first riveting hole 111 of the main plate 110, so that the rivet 151 of the square contact piece 150 can be smoothly inserted into the first riveting hole 111, improving the riveting accuracy; the elastic pressure plate 632 assists in pressing down the square contact pieces 150 to avoid displacement during riveting.

[0087] In this embodiment, the square contact piece riveting component 700 includes a first abutting vertical rod 710, a first elastic longitudinal rod 720, and a pressing block 730. The first abutting vertical rod 710 is vertically disposed on the bottom surface of the upper template 210 and passes through the middle template 220. The first elastic longitudinal rod 720 is slidably placed in the first clearance groove 241. The bottom end of the first abutting vertical rod 710 is provided with a first inclined block 711. The outer end of the first elastic longitudinal rod 720 is vertically provided with a second inclined block 721, and the inner end is vertically provided with a third inclined block 722. The pressing block 730 is T-shaped and slidably placed in the lower template 240. The bottom of the pressing block 730 is inclined. The third inclined block 722 is fitted against the bottom of the pressing block 730. The surface of the pressing block 730 is vertically and symmetrically provided with second pressing columns 731. The second pressing columns 731 pass through the lower template 240 and are positioned at the bottom of the rivet column 151.

[0088] In the above scheme: the first contacting vertical rod 710 drives the first elastic vertical rod 720 through the inclined block transmission, which in turn drives the extrusion block 730 and the second extrusion column 731 to rise synchronously, applying uniform pressure to the extended part of the rivet column 151, so that the rivet column 151 is plastically deformed and tightly fits with the first riveting hole 111, and the connection is firm and without looseness; the square contact piece 150 is positioned by the elastic clamp 631 to ensure that the rivet column 151 and the first riveting hole 111 are accurately aligned, so that the square contact piece 150 and the main plate 110 are tightly fitted, reducing the contact gap and improving the conductivity; the elastic effect of the first elastic vertical rod 720 can buffer the riveting pressure and avoid excessive pressure causing the rivet column 151 to break or the main plate 110 to deform; the synchronous linkage of the transmission structure ensures that the riveting action is smooth and controllable, and improves the product qualification rate.

[0089] In this embodiment, the second lower bending component 800 includes a second abutting vertical rod 810, a second elastic vertical rod 850, a third folding plate 830, and a third positioning frame 820. The top of the third positioning frame 820 is rotatably connected to the third folding plate 830, and a second driven gear 831 is installed at the rotatable connection. The bottom of the second driven gear 831 is meshed with a contact toothed plate 840. The outer end of the contact toothed plate 840 is connected to the second elastic vertical rod 850. The outer end of the second elastic vertical rod 850 abuts against the bottom end of the second abutting vertical rod 810. An inner stop block 860 is provided on the inner side of the third positioning frame 820. The inner stop block 860 is used to support the inclined plate 143. The third folding plate 830 is used to bend the end of the second bent plate 950 to form the main vertical plate 141 and the connecting vertical plate 142.

[0090] In the above scheme: the second abutting vertical rod 810 drives the second elastic vertical rod 850 and the contact tooth plate 840, which in turn drives the third folding plate 830 to precisely bend the second bent piece 950, forming a regular main vertical piece 141 and connecting vertical piece 142. This ensures that the connecting vertical piece 142 can smoothly pass through the docking notch 152 of the square contact piece 150. The protrusion 153 is precisely embedded between the two sets of connecting vertical pieces 142, with a tight fit and no gaps. The inner stop block 860 supports the inclined piece 143, preventing the inclined piece 143 from undergoing unexpected deformation during bending. This ensures the tilt angle and elastic performance of the deformable piece 140, ensuring that the contact can quickly reset when it is switched on or off, thus improving the reliability of use. After bending, the deformable piece 140 and the square contact piece 150 form an interlocking structure with no relative displacement space, which enhances the overall rigidity of the contact body 100, resists the vibration and impact caused by high-frequency switching, and extends the service life.

[0091] In this embodiment, the surface of the lower template 240 is provided with a second clearance groove 242 for clearance post contact 130, the surface of the lower template 240 is provided with a third clearance groove 243 for clearance post 151, the output end of the middle template 220 is provided with a corner notch 221 for clearance deformation piece 140, and the bottom surface of the output end of the middle template 220 is provided with a fourth clearance groove for clearance square contact piece 150.

[0092] The working principle and usage process of this invention are as follows: The processing of the contact body 100 is as follows: S1, Copper strip input: Two sets of feeding conveyor wheels 251 rotate, driving two sets of pushing columns 252 to rotate. The pushing columns 252 are inserted into the pushing holes 910 of the copper strip 900, realizing automatic feeding of the copper strip 900; S2, Semi-finished part processing: The upper template 210 and the middle template 220 move downward synchronously. After the middle template 220 presses down to position the copper strip 900, The upper template 210 drives the stamping block 212 to move downwards. The stamping block 212 punches out a semi-finished part 920 on the copper strip 900. The semi-finished part 920 is an integral planar structure. One end of the semi-finished part 920 is a formed main flat plate 110 and an outer square plate 120, and the other end of the semi-finished part 920 is a flat plate 930. S3, Column contact riveting: The semi-finished part 920 is conveyed forward, and the feeding vibratory plate 310 outputs column contacts 130 one by one. The column contacts 130 are in the shape of an inverted T. The mold is placed inside the first feeding guide rail 320; the foremost column contact 130 moves into the slot 331 of the top material block 330; the upper mold plate 210 and the middle mold plate 220 move downwards synchronously, the pressure block 370 first presses down the second vertical toothed plate 360, the second vertical toothed plate 360 ​​presses down the second spring rod 361, the second vertical toothed plate 360 ​​drives the first vertical toothed plate 341 to move upwards through the central rotating gear 350, the first vertical toothed plate 341 drives the slider 340 and the top material block 330 to move upwards. This causes the column contact 130 to be inserted from bottom to top into the second riveting hole 121 of the outer square piece 120. Then, the middle template 220 presses down on the positioning copper strip 900, and the upper template 210 drives the first extrusion column 380 to move downwards. The first extrusion column 380 deforms the extended portion of the column contact 130, causing the column contact 130 to be riveted into the second riveting hole 121. S4, First Cut: The semi-finished part 920 with the riveted column contact 130 is conveyed forward, and the upper template 210 and the middle template... S220 moves downwards, and the first cutting plate 213 cuts the connection between the flat sheet 930 and the copper strip 900, separating the flat sheet 930 from the copper strip 900. Only one end of the flat sheet 930 is connected to the main plate 110, while the other parts are in a free state, preparing for subsequent stamping deformation; S5, First bending: The semi-finished part 920 continues to be conveyed, and the upper template 210 and the middle template 220 move downwards. After the middle template 220 presses down to position the copper strip 900, the upper template 210 continues to move downwards. When the template 220 moves, the counter-support plate 440 is supported by the third spring rod 441 and retracts. The counter-support plate 440 pushes the right-angle groove 421 of the flipping column 420, causing the flipping column 420 to rotate. The flipping column 420 rotates around the first positioning frame 410. When the flipping column 420 rotates, it drives the first folding plate 430 in the right-angle groove 421 to rotate. The first folding plate 430 rotates downward and extends into the first clearance groove 241 and compresses the flat piece 930 into an approximately L-shape.S6. Secondary Bending: The semi-finished part 920 continues to be conveyed. The straightening vertical plate 450 is inserted into the first clearance groove 241. The straightening vertical plate 450 abuts against the approximately L-shaped flat piece 930, forming a 90° right angle, resulting in the first bent piece 940. S7. Tertiary Bending: The semi-finished part 920 continues to be conveyed. The middle template 220 presses down the positioning copper strip 900. The upper template 210 descends and drives the contacting inclined block 550 and the partition plate 560 to descend. The contacting inclined block 550 passes through the heat dissipation hole 112 and abuts against the cooperating inclined block 540, causing the cooperating inclined block 540 to move. The cooperating inclined block 540 drives the two sets of elastic horizontal toothed plates 530 to move. The two sets of elastic horizontal toothed plates 530 mesh and drive the first driven gear 521 to rotate. The first driven gear 521 drives the second folding plate 520 to rotate around the second positioning frame 510. The second folding plate 520 abuts against the horizontal part of the first bent piece 940, causing the first bent piece 940 to be bent. The horizontal portion of 40 is bent into an inclined portion to obtain the second bent piece 950; during the bending process, the partition plate 560 is inserted into the vertical portion of the first bent piece 940 to prevent deformation of the vertical portion; S8, square contact piece riveting: the second feeding guide rail 610 conveys the square contact piece 150 to the top of the pushing component 620; the drive rod 625 retracts and drives the vertical bracket 621 to move outward. During the outward movement, the push plate 623 is resisted by the square contact piece 150 and rotates inward. The push plate 623 rotates downward and retracts, compressing the torsion spring. When the push plate 623 moves outward to the protrusion 153 of the square contact piece 150, the torsion spring drives the push plate 623 to return to the vertical position; the drive rod 625 extends and drives the vertical bracket 621. The vertical bracket 621 moves inward, driving two sets of push plates 623 to push out a set of square contact pieces 150. The positioning plate 624 stops the push plate 623 from the rear. The square contact pieces 150 are pushed away from the second feeding guide rail 610 and then squeezed between two sets of elastic clamping plates 631. The two sets of elastic clamping plates 631 hold and position the square contact pieces 150 and are located at the bottom of the elastic pressure plate 632. The semi-finished part 920 continues to be conveyed forward. The middle template 220 and the upper template 210 move downward. When the middle template 220 is in contact with the copper strip 900, the rivet 151 of the square contact pieces 150 is inserted into the first riveting hole 111. Then the upper template 210 moves downward, driving the first abutting vertical rod 710 to move downward. The first inclined block 711 of the first abutting vertical rod 710 abuts against the second inclined block 721 of the first elastic vertical rod 720. The first elastic vertical rod 720 moves horizontally, and the third inclined block 722 pushes against the pressing block 730. The pressing block 730 moves upward and drives the two sets of second pressing columns 731 to move upward. The second pressing columns 731 press the extended part of the rivet column 151 to deform. The square contact piece 150 is fixed to the main plate 110 through the rivet column 151. When the first abutting vertical rod 710 moves upward, the first elastic vertical rod 720 moves outward to reset, and the pressing block 730 descends to reset. S9, four-fold bending: the semi-finished part 920 continues to be conveyed forward, and the inner stop block 860 supports the inclined part of the second bending piece 950.The second contacting vertical rod 810 abuts against the second elastic vertical rod 850. The second elastic vertical rod 850 drives the contact toothed plate 840 to translate. The contact toothed plate 840 drives the second driven gear 831 to rotate, which in turn drives the third folding plate 830 to rotate. The third folding plate 830 rotates and abuts against the top of the inclined portion of the second bent piece 950. Due to the abutment from the tail end of the square contact piece 150, under the combined action of the third folding plate 830 and the square contact piece 150, the end of the inclined portion bends into a vertical shape. In the first stage, the second bent piece 950 is processed into a deformable piece 140, and the connecting vertical piece 142 of the deformable piece 140 is embedded in the butt joint notch 152; S10, secondary cutting: the second cutting plate 214 descends and cuts off the connecting part of the outer square piece 120; the contact body 100 is separated from the copper strip 900; S11, material collection: the copper strip 900 continues to output, the contact body 100 falls into the collection box 230, and the copper strip 900 with the contact body 100 removed is wound onto the winding roller.

[0093] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A relay composite contact, characterized in that, include: The main plate has a tapered end; the surface of the main plate has symmetrical first riveting holes; the interior of the main plate has heat dissipation holes. An outer square piece is flush with the end of the main plate; a second riveting hole is provided at the end of the outer square piece. The column contact is riveted into the second rivet hole; The deformable plate includes a main vertical plate, connecting vertical plates, inclined plates, and split vertical plates; the other end of the main plate is provided with vertically symmetrical split vertical plates, the bottom end of each set of vertical plates is connected to a set of inclined plates, the top end of each set of inclined plates is connected to a set of connecting vertical plates, the top ends of the two sets of connecting vertical plates are connected to the main vertical plate, and the main vertical plate and the split vertical plates are arranged in parallel; the main vertical plate has symmetrically opened assembly holes inside; The square contact plate covers the surface of the main plate. The top view of the square contact plate is convex. The bottom surface of the square contact plate is symmetrically provided with rivet posts, which are riveted into the first rivet hole. One end surface of the square contact plate is symmetrically provided with a mating notch. There is a protrusion between the two sets of notches. The connecting vertical plate passes through the mating notch vertically, and the protrusion is inserted between the two sets of connecting vertical plates.

2. The processing mold for the relay composite contact piece according to claim 1, characterized in that, include: The upper mold assembly includes a middle mold plate, an upper mold plate is installed at a distance from the top of the middle mold plate, the upper mold plate and the middle mold plate are connected by a first spring rod, the upper mold plate and the middle mold plate are in the processing gap, and a stamping block, a first cutting plate, an upper bending component, a square contact piece feeding component and a second cutting plate are arranged sequentially along the feeding direction in the processing gap; The lower mold assembly includes a lower template. Inside the lower template, along the conveying direction, there are sequentially arranged a column contact riveting component, a first lower bending component, a square contact riveting component, and a second lower bending component. The inner output end of the lower template is provided with a stepped first clearance groove. The outer end of the first clearance groove is an open structure. The first lower bending component, the square contact riveting component, and the second lower bending component are all located in the first clearance groove. The feeding assembly, installed at the input end of the lower die assembly, is used to transport the copper strip. The stamping block is used to stamp out semi-finished parts from the copper strip; one end of the semi-finished part is a main flat plate and an outer square plate, and the other end is a flat plate; both the outer square plate and the flat plate are connected to the copper strip. The contact riveting component mates to install the column contact inside the outer square piece; the first cutting plate is used to separate the flat piece from the copper strip; the upper bending component is used to bend the flat piece downward to obtain the first bent piece; the first lower bending component is used to bend the first bent piece upward to obtain the second bent piece; the square contact piece feeding component and the square contact piece riveting component mate to install the square contact piece on the main plate; the second lower bending component is used to bend the second bent piece upward to obtain the deformable piece; The second cutting plate is used to separate the outer square piece from the copper strip to obtain the contact piece; The material collection box is installed at the output end of the lower mold assembly to collect the machined contact parts.

3. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The copper strip has push holes equidistantly opened at both edges of its surface. The feeding assembly includes a feeding conveyor wheel, which is symmetrically arranged at the input end of the lower template. Pushing columns are symmetrically arranged on the outer wall of the feeding conveyor wheel, and the pushing columns are inserted into the push holes.

4. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The column contact riveting component includes a feeding vibratory plate, a lower top block, and an upper pressure column. The lower template has a first feeding notch, and the output end of the feeding vibratory plate has a first feeding guide rail that extends into the first feeding notch. The column contact is in an inverted T-shape and placed inside the first feeding guide rail. The output end of the first feeding guide rail has a top block, and a groove is provided at the position opposite to the first feeding guide rail. The bottom surface of the top block has a slider that slides vertically within the first feeding notch. The bottom side of the slider is connected to a first vertical toothed plate, and one side of the vertical toothed plate is meshed with a central gear. The outer side of the central gear is meshed with a second vertical toothed plate, and the bottom end of the second vertical toothed plate has a second spring rod. The outer wall of the middle template has a pressure block located directly above the second vertical toothed plate. The bottom surface of the upper template has a first extrusion column, and the bottom end of the first extrusion column slides through the middle template. The top block is used to insert the column contact from bottom to top into the first riveting hole of the main plate. The first extrusion column is the extended portion of the lower pressure column contact.

5. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The upper bending component includes a first positioning frame, inside which a flipping column is rotatably mounted. A right-angle groove is provided at the bottom of the flipping column. A first folding plate is provided on one side of the bottom of the right-angle groove, and an abutment plate is provided on the bottom of the other side of the right-angle groove. The abutment plate is horizontally placed at the bottom of the flipping column, and a third spring rod is provided on the top surface of the abutment plate. The third spring rod is located on the bottom surface of the upper template. A straightening vertical plate is provided on the output side of the first positioning frame and is vertically located on the bottom surface of the upper template. When the upper template is pressed down, the abutment plate abuts against the flipping column and rotates, so that the first folding plate rotates and extends into the first clearance groove and abuts against the flat piece. The abutment plate and the straightening vertical plate are bent to form an L-shaped first bent piece.

6. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The first downward bending component includes a second folding plate, an abutting wedge, and a partition. The second folding plate is rotatably placed within a second positioning frame, and a first driven gear is installed at the rotatable connection. The second positioning frame is located within a first clearance groove. The bottom of each set of first driven gears is meshed with an elastic horizontal toothed plate. A receiving groove is provided inside the lower template, and the receiving groove is located opposite to the heat dissipation holes below. Two sets of elastic horizontal toothed plates are horizontally slidably placed within the lower template. A mating wedge is installed inside the receiving groove, and the inner ends of the two sets of elastic horizontal toothed plates are connected to the mating wedge. The bottom surface of the upper template is provided with an abutting wedge and a partition, and the partition is spaced apart and located outside the abutting wedge. The second folding plate is used to bend the horizontal part of the first bent piece upward into an inclined state, and the partition is used to press down and position the vertical part of the first bent piece.

7. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The square contact piece feeding component includes a second feeding guide rail, which is used to linearly feed the square contact piece; a second feeding notch is provided at the position opposite to the upper template and the second feeding guide rail, the second feeding guide rail extends into the second feeding notch, and the inner end of the second feeding notch is connected to the inner clamping hole. The output end of the second feeding guide rail is equipped with a pushing component, which includes a vertical bracket. The vertical bracket has horizontally arranged baffles symmetrically arranged on the inner side of the middle part. Push plates are rotatably connected to both ends of the vertical bracket, and torsion springs are installed at the rotatable connection. Positioning plates are provided on the outer sides of both ends of the vertical bracket. The positioning plates stop the push plates from the rear side. The top of the push plates extends outward from the positioning plates. A drive rod is provided on the outer side of the middle part of the vertical bracket. When the vertical bracket moves outward, the push plates are squeezed by the bottom surface of the square contact piece and rotated to retract. When the vertical bracket moves inward, the push plate pushes out a set of square contact pieces; The inner clamping hole is equipped with clamping components, including elastic clamping plates and elastic pressure plates. The elastic clamping plates are symmetrically arranged in the inner clamping hole. The two sets of elastic clamping plates are used to clamp the ejected square contact piece. The elastic pressure plate is located on the bottom surface of the upper template and is used to press down the square contact piece.

8. The processing mold for the relay composite contact piece according to claim 7, characterized in that: The square contact piece riveting component includes a first abutting vertical rod, a first elastic longitudinal rod, and a pressing block. The first abutting vertical rod is vertically disposed on the bottom surface of the upper template and passes through the middle template. The first elastic longitudinal rod is slidably placed in the first clearance groove. A first inclined block is provided at the bottom end of the first abutting vertical rod. A second inclined block is vertically disposed at the outer end of the first elastic longitudinal rod and a third inclined block is vertically disposed at the inner end. The pressing block is T-shaped and slidably disposed in the lower template. The bottom of the pressing block is inclined. The third inclined block is fitted against the bottom of the pressing block. A second pressing column is vertically and symmetrically disposed on the surface of the pressing block. The second pressing column passes through the lower template and is positioned at the bottom of the insert column.

9. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The second downward bending component includes a second abutting vertical rod, a second elastic longitudinal rod, a third folding plate, and a second positioning frame. The top of the second positioning frame is rotatably connected to the third folding plate, and a second driven gear is installed at the rotatable connection. The bottom of the second driven gear is meshed with a contact tooth plate. The outer end of the contact tooth plate is connected to the second elastic longitudinal rod. The outer end of the second elastic longitudinal rod abuts against the bottom end of the second abutting vertical rod. An inner stop block is provided on the inner side of the second positioning block to support the inclined plate. The third folding plate is used to bend the end of the second bending plate into the main vertical plate and the connecting vertical plate.

10. The processing mold for the relay composite contact piece according to claim 2, characterized in that: The surface of the lower template is provided with a second clearance groove for the clearance post contact point, and the surface of the lower template is provided with a third clearance groove for the clearance rivet post. The output end of the middle template is provided with a corner notch for the clearance deformation piece.

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