A movable contact buckle for isolating switch and production method thereof

Abstract

The present invention discloses a moving contact buckle for an isolating switch and a production method thereof. The moving contact buckle for the isolating switch is formed by laminating and stacking a first contact piece and a second contact piece. Both ends of the first contact piece and the second contact piece are formed with a bending section, and a contact gap adapted to a static contact piece is formed between the two bending sections. Both sides of the bending section are formed with a guiding arc surface, and the middle part of the second contact piece is formed with four bending parts. When the four bending parts are in a bent state, the first contact piece and the second contact piece are fixedly stacked.

Description

Technical Field

[0001] The present invention relates to the technical field of isolating switches, and more particularly to a moving contact buckle for an isolating switch and a production method thereof. Background Art

[0002] An isolating switch is a switching device that is mainly used to isolate power, perform switching operations, and connect and disconnect low-current circuits. It does not have an arc extinguishing function. The static contact and the moving contact are important components of the isolating switch. The quality of the static contact and the moving contact directly affects the conductive performance of the isolating switch.

[0003] Isolating switches typically use two sets of metal sheets to assemble a moving contact, which utilizes its own elasticity to fit in contact with the stationary contact. The two sets of metal sheets are assembled and spliced ​​together through processes such as stamping and bending. However, the existing processing technology and process for the moving contact clips requires 5-10 or even more people to complete the work, resulting in redundant personnel and low output, affecting product production efficiency. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a moving contact buckle for an isolating switch and a production method thereof, so as to solve the above technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a movable contact buckle for an isolating switch and a production method thereof, wherein the movable contact buckle for the isolating switch is formed by laminating and stacking a first contact piece and a second contact piece, wherein both ends of the first contact piece and the second contact piece are formed with a bent section, a contact gap adapted to a static contact is formed between the two bent sections, and guide arc surfaces are formed on both sides of the bent section. Four bent portions are formed in the middle of the second contact piece, and the four bent portions are in a bent state to achieve fixed stacking of the first contact piece and the second contact piece;

[0006] The steps of the production method for producing the movable contact buckle of the isolating switch are as follows:

[0007] S1. Material selection: Select high elastic steel plate as blank; S2. Stamping: Feed the blank into the punch press, and obtain the first contact piece and the second contact piece through punching; S3. First material division: Feed the first contact piece and the second contact piece into the first material division unit, and the first material division unit divides each first contact piece or second contact piece into pieces, and the first contact piece or the second contact piece after segmentation is clamped and shifted to the next processing station through the first switching mechanism; S4. Bending and forming: The first material division unit feeds the first contact piece or the second contact piece to the bending and forming assembly, and the first forming unit and the second forming unit respectively complete the bending and forming of the bending section and the guide arc surface; S5. Second material division: The second switching mechanism divides the first contact piece or the second contact piece processed by the first forming unit into pieces A contact piece or a second contact piece is clamped and replaced to the second molding unit, and the first contact piece or the second contact piece processed by the second molding unit is clamped and replaced to the detection mechanism, the detection mechanism detects the first contact piece or the second contact piece and clamps and replaces it to the second material distribution unit through the third replacement mechanism; S6, classification and stacking: the third replacement mechanism replaces the first contact piece or the second contact piece to the second material distribution unit according to the detection signal of the detection mechanism and performs classification and stacking at the same time; S7, stacking and fixing: the classified and stacked first contact piece and the second contact piece are clamped and sent to the stacking mechanism in turn through the alternating feeding mechanism, and the stacking mechanism fixes the stacked first contact piece and the second contact piece to obtain a moving contact buckle for the isolating switch.

[0008] The present invention is further configured as follows: the first material distribution unit includes a first substrate and a first fixed seat is fixedly installed on the first substrate, a feeding port is opened at the center of the first fixed seat, and the first fixed seat is provided with a supporting plate at the feeding port, and two supporting cylinders are correspondingly provided on the left and right sides of the feeding port, and the supporting cylinders are driven and connected to two supporting members, and the upper surface of the first fixed seat is located at the corresponding position of the feeding port, and a plurality of limit rods are distributed, and a stacking interval for stacking the first contact piece or the second contact piece is formed between each limit rod, and the top surface of the first fixed seat is located on the left and right sides of the feeding port, and two clamping cylinders are correspondingly provided, and the clamping cylinders are driven and connected to the clamping plate; the upper surface of the first substrate is located below the first fixed seat and two slide rails are correspondingly provided, and a slide is commonly provided on the two slide rails and a material receiving seat is provided on the slide, and two lifting cylinders are installed on the lower surface of the first substrate at the corresponding position of the feeding port, and the output shafts of the two lifting cylinders pass through the first substrate and are connected to the top column.

[0009] The present invention is further configured as follows: the first molding unit includes a first stand, an electric push rod is installed on the top surface of the first stand, the output shaft of the electric push rod passes through the first stand and is connected to a drive plate, an upper molding die is connected below the drive plate, a lower molding die is provided on the top surface of the first substrate at a position corresponding to the upper molding die, and the second molding unit has the same working principle as the first molding unit.

[0010] The present invention is further configured as follows: the top surface of the first substrate is located on the left and right sides of the lower forming mold, and two deceleration units are correspondingly provided; the left and right sides of the upper forming mold are correspondingly provided with two contact blocks cooperating with the deceleration units; the deceleration unit includes a base, a hydraulic cylinder, a movable plug and a driving rod; the movable plug includes a columnar portion and a plug head portion; the columnar portion extends through and extends outside the hydraulic cylinder and is slidably matched with the through hole; the plug head portion is slidably provided in the hydraulic cylinder and separates the hydraulic cylinder into two liquid cavities containing oil; a plurality of first liquid holes are distributed on the plug head portion, and the two liquid cavities are connected through each first liquid hole; each first liquid hole is arranged circumferentially with the movable plug as the axis; and an assembly recess is provided on the lower surface of the plug head portion at the position corresponding to each row of first liquid holes. A positioning slide is built into the assembly recess. The positioning slide has a strip-shaped structure and slide grooves are symmetrically arranged on both sides. A baffle is provided on the lower surface of the positioning slide and the baffle is slidably matched with the positioning slide through the slide groove. The positioning slide is provided with a second liquid hole at the corresponding position of each first liquid hole, and the baffle is provided with a third liquid hole that matches the first liquid hole and the second liquid hole; the columnar portion is formed with a through hole and the driving rod is slidably arranged in the through hole, the upper end of the driving rod extends through the outside of the through hole and is connected to a contact plate, the lower end of the driving rod is rotatably connected to a hinged arm at the corresponding position of each baffle, and the other end of each hinged arm is hingedly matched with the corresponding baffle; a first spring is sleeved between the base and the contact plate, and a second spring is sleeved between the contact plate and the columnar portion.

[0011] The present invention is further configured as follows: the detection mechanism includes a second stand and a detection unit installed on the second stand, the detection unit is used to identify the first contact piece or the second contact piece on the detection platform, a detection platform is provided on the upper surface of the first substrate at a position corresponding to the detection unit, two lifting cylinders are provided on the upper surface of the first substrate on the left and right sides of the detection platform, the output shafts of the two lifting cylinders are connected to a lifting plate, a telescopic cylinder is provided on the top surface of the lifting plate, the output shaft of the telescopic cylinder is connected to a rotating cylinder, and the output shaft of the rotating cylinder is connected to a flip clamp.

[0012] The present invention is further configured as follows: the second material dividing unit is located on the second substrate, the second material dividing unit has the same working principle as the first material dividing unit and has two material discharge ports, and the second substrate is provided with slide rails, slide seats and material receiving seats at the two material discharge ports.

[0013] The present invention is further configured as follows: the stacking mechanism includes a conveyor belt arranged on the second substrate, the conveyor belt transports from right to left, a plurality of stacking seats are arranged at equal intervals on the conveyor belt, and a first fixing unit and a second fixing unit are arranged in sequence from right to left at corresponding positions of the conveyor belt on the second substrate.

[0014] The present invention is further configured as follows: the first fixing unit includes a first support frame, on which a first electric cylinder is installed, the output shaft of the first electric cylinder passes through the first support frame and is connected to a stamping die, and the stamping die has four first punches for performing a first bending on the bending portion; the second fixing unit includes a second support frame, on which a second electric cylinder is installed, the output shaft of the second electric cylinder passes through the second support frame and is connected to a limiting die, and two supporting base plates are correspondingly installed on the inner side of the second support frame on both sides of the conveyor belt, and two third electric cylinders are installed on each supporting base plate, and the four third electric cylinders are distributed in a rectangular shape and are all connected to second punches for performing a secondary bending on the bending portion.

[0015] The present invention is further configured as follows: the alternating feeding mechanism includes two supporting frames, on which a transverse mold base is installed, a lifting mold base is slidingly arranged on the left side of the transverse mold base, the left end of the lifting mold base is connected to a driving base, and the driving base is connected to a mechanical clamp for alternately grabbing the first contact piece and the second contact piece.

[0016] In summary, the present invention has the following beneficial effects: the bending sections at both ends of the first contact piece or the second contact piece and the corresponding bending sections of the other contact piece form a contact gap adapted to the static contact. When the switch device is switched to the power-on state, the static contact enters the contact gap, and the elastic force of the two bending sections clamps the static contact to improve the connection stability between the dynamic contact and the static contact. The two guiding arc surfaces enable the static contact to enter the contact gap more stably, avoiding the jamming of the two due to contact error and affecting the normal power supply of the switch device; the automatic assembly and splicing of the dynamic contact buckle is realized through material selection, stamping, first material separation, bending and forming, second material separation, stacking and assembly and fixation, effectively improving the production efficiency and production quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the movable contact buckle of the present invention;

[0019] Figure 2 This is a flowchart of the method for producing a movable contact buckle according to the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable contact buckle production equipment of the present invention;

[0021] Figure 4This is a schematic structural diagram of the first material distribution unit of the present invention;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A in the middle;

[0023] Figure 6 Schematic diagram of the structure of the first molding unit, the second molding unit and the detection unit of the present invention;

[0024] Figure 7 It is a schematic cross-sectional view of the structure of the buffer unit of the present invention;

[0025] Figure 8 This is a schematic structural diagram of the movable plug of the present invention;

[0026] Figure 9 Schematic diagram of the structure of the first transposition mechanism of the present invention;

[0027] Figure 10 Schematic diagram of the structure of the second transposition mechanism of the present invention;

[0028] Figure 11 Schematic diagram of the structure of the third transposition mechanism of the present invention;

[0029] Figure 12 Schematic diagram of the structure of the first fixed unit of the present invention;

[0030] Figure 13 Schematic diagram of the structure of the second fixed unit of the present invention;

[0031] Figure 14 Schematic diagram of the stacking of the first contact sheet and the second contact sheet of the present invention.

[0032] Figure numerals: 1. first contact piece; 100. second contact piece; 101. bending section; 102. contact gap; 103. guide arc surface; 104. bending portion; 105. first material distribution unit; 106. first shifting mechanism; 107. first molding unit; 108. second molding unit; 109. second shifting mechanism; 110. detection mechanism; 112. third shifting mechanism; 113. second material distribution unit; 114. alternating feeding mechanism; 115. stacking mechanism; 2. first substrate; 200. first fixing seat; 201. discharge port; 202. supporting plate; 203. supporting cylinder; 204. supporting member; 205. limiting rod ; 206, clamping cylinder; 207, clamping plate; 208, slide rail; 209, slide seat; 210, receiving seat; 211, lifting cylinder; 212, top column; 3, first stand; 300, electric push rod; 301, drive plate; 302, upper forming die; 303, lower forming die; 304, retarding unit; 305, contact block; 306, base; 307, hydraulic cylinder; 308, moving plug; 309, driving rod; 310, columnar portion; 311, plug head; 312, first liquid hole; 313, assembly recess; 314, positioning slide; 315, slide; 316, baffle; 317, second liquid hole; 318, third liquid hole; 3 19. Through hole; 320. Contact plate; 321. Articulated arm; 322. First spring; 323. Second spring; 324. Second stand; 325. Detection unit; 326. Detection table; 327. Lifting cylinder; 328. Lifting plate; 329. Telescopic cylinder; 330. Rotating cylinder; 331. Flipping jaw; 4. Conveyor belt; 400. Stacking seat; 401. First mounting unit; 402. Second mounting unit; 403. First support frame; 404. First electric cylinder; 405. Punching die; 406. First punch; 407. Second support frame; 408. Second electric cylinder; 409. Positioning die; 410. Support base; 411. The third electric cylinder; 412. The second punch; 413. The horizontal plate; 5. The supporting frame; 500. The horizontal moving die base; 501. The lifting die base; 502. The driving seat; 503. The mechanical gripper; 6. The first frame; 600. The first horizontal moving guide rail; 601. The first power cylinder; 602. The first mechanical gripper; 603. The second frame; 604. The second horizontal moving guide rail; 605. The horizontal moving substrate; 606. The second power cylinder; 607. The second mechanical gripper; 608. The linear guide rail; 609. The third frame; 610. The third horizontal moving guide rail; 611. The horizontal moving frame; 612. The micro cylinder; 613. The third mechanical gripper; 7. The second substrate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-14 As shown, an embodiment of the present invention provides a movable contact buckle for an isolating switch and a production method thereof. The movable contact buckle for the isolating switch is formed by laminating and stacking a first contact piece 1 and a second contact piece 100. Both ends of the first contact piece 1 and the second contact piece 100 are formed with a bent section 101. A contact gap 102 adapted to the static contact is formed between the two bent sections 101. Guide arc surfaces 103 are formed on both sides of the bent section 101. Four bent portions 104 are formed in the middle of the second contact piece 100. The four bent portions 104 are bent to achieve fixed stacking of the first contact piece 1 and the second contact piece 100.

[0035] The steps of the production method of the movable contact buckle of the disconnector are as follows: S1, material selection: selecting a high elastic steel plate as the blank; S2, stamping: feeding the blank into a punch press, and punching the blank into a first contact piece 1 and a second contact piece 100; S3, first material division: feeding the first contact piece 1 and the second contact piece 100 into the first material division unit 105, and the first material division unit 105 divides each first contact piece 1 or the second contact piece 100 into pieces, and the first contact piece 1 or the second contact piece 100 after segmentation is clamped and shifted to the next processing station by the first switching mechanism 106; S4, bending and forming: the first material division unit 105 feeds the first contact piece 1 or the second contact piece 100 to the bending and forming assembly, and the first forming unit 107 and the second forming unit 108 respectively complete the bending and forming of the bending section 101 and the guide arc surface 103; S5, second material division: the second switching mechanism 109 divides the first forming unit 10 7. The first contact piece 1 or the second contact piece 100 processed is clamped and replaced to the second molding unit 108, and the first contact piece 1 or the second contact piece 100 processed by the second molding unit 108 is clamped and replaced to the detection mechanism 110. The detection mechanism 110 detects the first contact piece 1 or the second contact piece 100 and clamps and replaces it to the second material distribution unit 113 through the third replacement mechanism 112; S6. Classification and stacking: the third replacement mechanism 112 replaces the first contact piece 1 or the second contact piece 100 to the second material distribution unit 113 through the detection signal of the detection mechanism 110 and performs classification and stacking at the same time; S7. Stacking and fixing: the classified and stacked first contact piece 1 and the second contact piece 100 are clamped and sent to the stacking mechanism 115 in sequence through the alternating feeding mechanism 114. The stacking mechanism 115 fixes the stacked first contact piece 1 and the second contact piece 100 to obtain a moving contact buckle for the isolating switch.

[0036] During use, the bent sections 101 at both ends of the first contact piece 1 or the second contact piece 100 form a contact gap 102 with the corresponding bent section 101 of the other contact piece, which is adapted to the static contact. When the switch device is switched to the power-on state, the static contact enters the contact gap 102. The elastic force of the two bent sections 101 clamps the static contact to improve the connection stability between the dynamic contact and the static contact. The two guiding arc surfaces 103 allow the static contact to enter the contact gap 102 more stably, avoiding the two from getting stuck due to contact error and affecting the normal power supply of the switch device.

[0037] The automatic assembly and splicing of the moving contact buckles are achieved through material selection, stamping, first material separation, bending and forming, second material separation, stacking and assembly and fixation, effectively improving the production efficiency and production quality of the workpiece.

[0038] The first material distribution unit 105 includes a first substrate 2 and a first fixed base 200 is fixedly mounted on the first substrate 2, a material discharge port 201 is opened at the center of the first fixed base 200, a supporting plate 202 is provided on the first fixed base 200 at the material discharge port 201, two supporting cylinders 203 are provided on the left and right sides of the material discharge port 201, and the supporting cylinders 203 are driven and connected to two supporting members 204, a plurality of limiting rods 205 are distributed on the upper surface of the first fixed base 200 at the corresponding positions of the material discharge port 201, and a stacking interval for stacking the first contact sheet 1 or the second contact sheet 100 is formed between the limiting rods 205, and two clamping cylinders 206 are provided on the top surface of the first fixed base 200 at the left and right sides of the material discharge port 201, and the clamping cylinders 206 are driven and connected to the clamping plate 207;

[0039] The upper surface of the first substrate 2 is located below the first fixed seat 200 and is correspondingly provided with two slide rails 208. A slide seat 209 is commonly provided on the two slide rails 208 and a material receiving seat 210 is provided on the slide seat 209. The lower surface of the first substrate 2 is located corresponding to the discharge port 201 and is installed with two lifting cylinders 211. The output shafts of the two lifting cylinders 211 pass through the first substrate 2 and are connected to the top column 212.

[0040] During production, the staff feeds the first contact piece 1 and the second contact piece 100 obtained by the punching machine into the first dividing unit 105. Specifically, the first contact piece 1 or the second contact piece 100 is fed alternately and in equal amounts to ensure the subsequent processing needs. In the initial state, each first contact piece 1 and the second contact piece 100 are vertically stacked in the stacking interval. The first dividing unit 105 divides the first contact piece 1 or the second contact piece 100 into pieces, and the first transposition mechanism 106 clamps the divided first contact piece 1 or the second contact piece 100 and transposes it to the next processing station.

[0041] The specific operation of the sheet separation is that in the initial state, each first contact sheet 1 and the second contact sheet 100 are vertically stacked in the stacking interval, and the supporting plate 202 provides bottom support for the entire stack of contact sheets. The pivot of the supporting plate 202 is connected to an external power source to control its rotation. The two lifting cylinders 211 drive the top column 212 to lift the entire stack of contact sheets upward by one end distance until the bottom contact sheet is lifted to a preset height that matches the support member 204. The two supporting cylinders 203 drive the two supporting members 204 to move toward each other to the preset position. The supporting plate 202 rotates around the pivot so that it will not hinder the falling of the first contact sheet 1 or the second contact sheet 100. The lifting cylinder 21 1 drives the top column 212 to reset, and the entire stack of contact sheets falls onto the two supporting members 204. The supporting members 204 provide support for the entire stack of contact sheets. At this time, the two clamping cylinders 206 drive the two clamping plates 207 to move toward each other, clamping the lower part of the entire stack of contact sheets (except the lowest contact sheet). The slide 209 drives the receiving seat 210 to slide to the corresponding position of the discharge port 201 through the cooperation with the slide rail 208. At this time, the two supporting cylinders 203 drive the two supporting members 204 to reset. The lowest contact sheet falls onto the receiving seat 210 under the action of gravity. Then the slide 209 drives the receiving seat 210 with the built-in contact sheet to slide to the preset position coordinated with the first shifting mechanism 106;

[0042] The first transposition mechanism 106 includes a first frame 6, a first transverse guide rail 600, a first power cylinder 601 and a first mechanical clamp 602. The first transverse guide rail 600 is installed on the first frame 6, the first power cylinder 601 is installed on the first transverse slide rail 208, and the first mechanical clamp 602 is connected to the first power cylinder 601 through a connecting plate. After the receiving seat 210 receives the contact piece, the slide 209 drives the receiving seat 210 to slide to the first transposition mechanism. At the cooperation point of structure 106, the first power cylinder 601 drives the first mechanical clamp 602 to descend and clamp the contact piece (the receiving seat 210 is formed with a accommodating recess adapted to the first contact piece 1 or the second contact piece 100, and the accommodating recess is preset with an extension groove for the first mechanical clamp 602 to extend into, so that the first mechanical clamp 602 can stably grasp the workpiece), and then the contact piece is clamped and moved to the first molding unit 107 through the transverse slide rail 208 for the next processing step.

[0043] The first molding unit 107 includes a first stand 3, and an electric push rod 300 is installed on the top surface of the first stand 3. The output shaft of the electric push rod 300 passes through the first stand 3 and is connected to a drive plate 301. An upper molding die 302 is connected below the drive plate 301. A lower molding die 303 is provided on the top surface of the first substrate 2 at a position corresponding to the upper molding die 302. The second molding unit 108 has the same working principle as the first molding unit 107.

[0044] When in use, the first transposition mechanism 106 transposes the contact piece to be processed to the first molding unit 107 and places it on the lower molding die 303 of the first molding unit 107. At this time, the electric push rod 300 drives the upper molding die 302 to move close to the lower molding die 303 to complete the molding of the bending section 101. The second transposition mechanism 109 clamps the first contact piece 1 or the second contact piece 100 processed by the first molding unit 107 and transposes it to the second molding unit 108, and clamps the first contact piece 1 or the second contact piece 100 processed by the second molding unit 108 and transposes it to the detection machine. Structure 110, the detection unit 325 detects the first contact piece 1 or the second contact piece 100 and clamps and transposes it to the second material distribution unit 113 through the third transposition mechanism 112; the second molding unit 108 has the same working principle as the first molding unit 107, and is used to stamp the guide arc surface 103 of the first contact piece 1 or the second contact piece 100. The distinguishing feature is that the upper molding die 302 and the lower molding die 303 are different from the first molding unit 107, and the upper molding die 302 and the lower molding die 303 are detachably connected to the equipment by fasteners, which is convenient for daily maintenance and replacement;

[0045] The second shifting mechanism 109 includes a second frame 603, a second transverse guide rail 604, a transverse substrate 605, a second power cylinder 606 and a second mechanical clamp 607. The first transverse guide rail 600 is installed on the first frame 6, and the transverse substrate 605 is in sliding cooperation with the transverse slide rail 208. There are two first power cylinders 601 and they are respectively installed at both ends of the transverse substrate 605. The output shafts of the two first power cylinders 601 are connected to the second mechanical clamp 607 through a connecting plate. The working principle of the second shifting mechanism 109 is the same as that of the first shifting mechanism 106, and no further details will be given here.

[0046] The top surface of the first substrate 2 is located on the left and right sides of the lower molding die 303, and two retarding units 304 are correspondingly provided. The left and right sides of the upper molding die 302 are correspondingly provided with two contact blocks 305 cooperating with the retarding units 304. The retarding unit 304 includes a base 306, a hydraulic cylinder 307, a movable plug 308 and a driving rod 309. The movable plug 308 includes a columnar portion 310 and a plug head 311. The columnar portion 310 extends through the outside of the hydraulic cylinder 307 and is slidably matched with the through hole. The plug head 311 is slidably provided in the hydraulic cylinder 307 and separates the hydraulic cylinder 307 to form two liquid chambers for containing oil. The plug head 311 is distributed with a plurality of first liquid holes 312, and the two liquid chambers are connected through each of the first liquid holes 312.

[0047] Each first liquid hole 312 is arranged circumferentially with the movable plug 308 as the axis. The lower surface of the plug head 311 is provided with an assembly recess 313 at the position corresponding to each row of first liquid holes 312. The assembly recess 313 has a positioning slide 314 built in. The positioning slide 314 has a strip-shaped structure and is symmetrically provided with slide grooves 315 on both sides. A baffle 316 is provided on the lower surface of the positioning slide 314, and the baffle 316 is slidably matched with the positioning slide 314 through the slide groove 315. The positioning slide 314 is provided with a second liquid hole 317 at the position corresponding to each first liquid hole 312. The baffle 316 is provided with a third liquid hole 318 that cooperates with each first liquid hole 312 and the second liquid hole 317.

[0048] The columnar portion 310 is formed with a through hole 319 and the driving rod 309 is slidably set in the through hole 319. The upper end of the driving rod 309 extends through the through hole 319 and is connected to the contact plate 320. The lower end of the driving rod 309 is located at the corresponding position of each baffle 316 and is rotatably connected to a hinged arm 321. The other end of each hinged arm 321 is hingedly matched with the corresponding baffle 316; a first spring 322 is sleeved between the base 306 and the contact plate 320, and a second spring 323 is sleeved between the contact plate 320 and the columnar portion 310.

[0049] During use, when the first forming or second forming unit 108 is working, the electric push rod 300 drives the upper forming die 302 to move closer to the lower forming die 303 to complete the stamping forming of the bending section 101 or the guide arc surface 103. During the stamping forming process, before the upper forming die 302 contacts the workpiece on the lower forming die 303, the contact blocks 305 on both sides thereof pre-contact with the deceleration units 304 on both sides of the lower forming die 303. The deceleration units 304 make the vertical displacement of the upper forming die 302 more stable. When the upper forming die 302 is working, it is a slow vertical displacement. Therefore, the bending section 101 and the guide arc surface 103 are formed into slow deformation, which is conducive to stress release during the forming process and the material is not easy to crack during the forming process.

[0050] The specific working principle of the deceleration unit 304 is as follows: before the upper forming die 302 contacts the workpiece, the contact blocks 305 on both sides thereof pre-contact the deceleration units 304 on both sides of the lower forming die 303, that is, pre-contact the contact plates 320. The contact plates 320 move downward under the action of force, overcoming the force of the first spring 322. While the contact plates 320 are pressed downward, the second spring 323 and the columnar portion 310 drive the plug head 311 to move within the hydraulic cylinder 307.

[0051] Since the punching drive source adopts the electric push rod 300 (the prior art also adopts the cylinder), since the electric push rod 300 and the cylinder drive the upper forming die 302 to move through the power shaft during operation, the drive of the power shaft will generate a large drifting force, which will cause the movement of the upper forming die 302 to be unstable, and thus cause the contact plate 320 to be unstable; when the contact plate 320 is unstable, the driving rod 309 adaptively moves downward in the through hole 319, and the movement of the driving rod 309 drives each baffle 316 to slide synchronously along the positioning slide 314 and away from the axis of the through hole 319 through the hinged arm 321. The sliding of the baffle 316 causes the overlapping area of ​​each third liquid hole 318 and the first liquid hole 312 and the second liquid hole 317 to decrease, that is, the effective flow inner diameter of the fluid channel formed by the third liquid hole 318, the first liquid hole 312 and the second liquid hole 317 is reduced, thereby reducing the moving speed of the plug head 311, ensuring that the upper forming die 302 is stably displaced at a preset speed; Similarly, when the contact plate 320 is under stable force, the movement of the contact plate 320 will not cause the drive rod 309 to move in the through hole 319. Therefore, the effective flow inner diameter of the fluid channel composed of the third liquid hole 318, the first liquid hole 312 and the second liquid hole 317 is the largest, and the plug head 311 is stably displaced at a preset speed; through the cooperation between the deceleration unit 304 and the contact block 305 and the adaptive displacement of the drive rod 309, the upper forming die 302 always maintains a stable radial displacement when in contact with and in contact with the workpiece to be processed, thereby ensuring that a stable slow deformation force is applied to the workpiece, which is beneficial to the stress release during the forming process, and the material is not easy to crack during the deformation process, thereby ensuring the production and processing quality of the workpiece; the buffer unit of the present invention is more stable than the prior art using springs or conventional hydraulic buffer cylinders. The buffer unit can provide more stable displacement buffering for the upper forming die 302, and can adapt according to the displacement of the upper forming die 302.

[0052] The detection mechanism 110 includes a second stand 324 and a detection unit 325 installed on the second stand 324, the detection unit 325 is used to identify the first contact piece 1 or the second contact piece 100 on the detection platform 326, and a detection platform 326 is provided on the upper surface of the first substrate 2 corresponding to the detection unit 325. Two lifting cylinders 327 are provided on the upper surface of the first substrate 2 on the left and right sides of the detection platform 326, and the output shafts of the two lifting cylinders 327 are connected to the lifting plate 328. The top surface of the lifting plate 328 is provided with a telescopic cylinder 329, the output shaft of the telescopic cylinder 329 is connected to the rotating cylinder 330, and the output shaft of the rotating cylinder 330 is connected to the flip clamp 331; the second material dividing unit 113 is located on the second substrate 7, and the second material dividing unit 113 has the same working principle as the first material dividing unit 105 and has two discharge ports 201. The second substrate 7 is provided with slide rails 208, slide seats 209 and material receiving seats 210 at the two discharge ports 201.

[0053] When in use, the second switching mechanism 109 clamps and switches the first contact piece 1 or the second contact piece 100 processed by the second molding unit 108 to the detection table 326, and the detection unit 325 (visual detection equipment) detects the first contact piece 1 or the second contact piece 100 on the detection table 326 and sends a detection signal to the external control system. The third switching mechanism 112 is electrically connected to the external control system. The second material dividing unit 113 has the same working principle as the first material dividing unit 105 and has two material discharge ports 201. The two material discharge ports 201 are correspondingly provided with two stacking intervals. The two stacking intervals are respectively used to classify and stack the first contact piece 1 and the second contact piece 100. The second substrate 7 is provided with slide rails 208, slide seats 209 and material receiving seats 210 at the two material discharge ports 201. When the detection unit 325 detects that there is the first contact piece 1 on the detection table 326, the switching mechanism directly switches the first contact piece 1 to the second contact piece 100. After the second contact piece 100 is turned over by the rotary cylinder 330, the lifting cylinder 327, the lifting plate 328 and the rotary cylinder 330 are reset in sequence.

[0054] The third shifting mechanism 112 includes two linear guide rails 608, a third frame 609 slidingly set on the two linear guide rails 608, a third transverse guide rail 610 set on the third frame 609, a transverse frame 611 cooperating with the third transverse guide rail 610, a micro cylinder 612 installed on the transverse frame 611, and a third mechanical clamp 613 driven and connected to the micro cylinder 612.

[0055] The stacking mechanism 115 includes a conveyor belt 4 provided on the second base plate 7. The conveyor belt 4 transports from right to left. A number of stacking seats 400 are provided on the conveyor belt 4 at equal intervals. A first fixing unit 401 and a second fixing unit 402 are provided on the second base plate 7 at positions corresponding to the conveyor belt 4 from right to left. The first fixing unit 401 includes a first support frame 403. A first electric cylinder 404 is installed on the first support frame 403. The output shaft of the first electric cylinder 404 passes through the first support frame 403 and is connected to a punching die 405. The punching die 405 has four first punches 406 for performing the first bending of the bending portion 104. The second fixing unit 402 includes a second support frame 407. A second electric cylinder 408 is installed on the second support frame 407. The output shaft of the second electric cylinder 408 passes through the second support frame 407 and is connected to the limiting die head 409. Two supporting base plates 410 are installed on the inner side of the second support frame 407 on both sides of the conveyor belt 4. Two third electric cylinders 411 are installed on each supporting base plate 410. The four third electric cylinders 411 are distributed in a rectangular shape and are all connected to a second punch 412 for performing a secondary bending on the bending portion 104; the alternating feeding mechanism 114 includes two support frames 5, and the two support frames 5 are equipped with a transverse die base 500. The transverse die base 500 is slidingly provided with a lifting die base 501 on the left side. The left end of the lifting die base 501 is connected to a drive base 502, and the drive base 502 is connected to a mechanical clamp 503 for alternately grabbing the first contact piece 1 and the second contact piece 100.

[0056] When in use, the two material discharge ports 201 on the second substrate 7 are respectively provided with slide rails 208, slide seats 209 and material receiving seats 210. The second material dividing unit 113 has the same structural principle as the first material dividing unit 105. When working, the two material receiving seats 210 slide to the bottom of the two material receiving ports respectively to receive a first contact piece 1 and a second contact piece 100, and then the two slide seats 209 move to the corresponding position of the alternating feeding mechanism 114. At this time, the mechanical clamping hands 503 of the alternating feeding mechanism 114 alternately clamp the first contact piece 1 and the second contact piece 100 to the stacking seat 400 on the conveyor belt 4. Before the next stacking seat 400 reaches the preset position, the two material receiving seats 210 repeat the above action and receive the first contact piece 1 and the second contact piece 100 again to ensure the smoothness of the next alternating feeding;

[0057] The conveyor belt 4 is transmitted from right to left to drive each stacking seat 400 to pass through the first fixing unit 401 and the second fixing unit 402 in sequence. When passing through the first fixing unit 401, the first electric cylinder 404 drives the punching die 405 to move downward, and the punching die 405 cooperates with the stacking seat 400 through each first punch 406 to perform the first bending portion 104 bending; when passing through the first fixing unit 401, the second electric cylinder 408 drives the limiting die 409 to perform auxiliary limiting on the docking seat 210, and then the four third electric cylinders 411 synchronously drive the second punch 412 to cooperate with the stacking seat 400 to perform the second bending portion 104 bending, completing the stacking and fixing of the first contact piece 1 and the second contact piece 100, and obtaining the moving contact buckle; the inner sides of the first support frame 403 and the second support frame 407 are both provided with a horizontal plate 413, and the horizontal plate 413 is used to provide bottom support for the stacking;

[0058] See the instructions attached Figure 14 , the stacking seat 400 is located at the corresponding positions of the four first punches 406 and the second punches 412, and four matching channels are formed thereon. When the first contact piece 1 and the second contact piece 100 are in the stacked state, the four bent portions 104 of the second contact piece 100 are respectively located in the four matching channels. When the stacking seat reaches the corresponding position of the first fixing unit 401, the four first punches 406 press down to bend the bent portion 104 for the first time, and the inner side of the bent portion 104 after bending is in contact with the first contact piece 1. When the stacking seat reaches the second fixing unit 402, the four second punches 412 extend into the matching channels to bend the bent portion 104 for the second time, completing the stacking and fixing of the first contact piece 1 and the second contact piece 100; wherein, the limiting die 409 is used to limit the stacking seat 400 to prevent the limiting die 409 from being displaced when the second punch 412 performs the secondary bending on the bent section;

[0059] The second substrate 7 is provided with a discharge port 201. After the stacking seat 400 completes the stacking and fixing of the first contact piece 1 and the second contact piece 100, the conveyor belt 4 drives the stacking seat 400 to continue moving. When the stacking seat 400 reaches the corresponding position of the discharge port 201, the movable contact buckle falls into the preset receiving box below the discharge port 201 due to gravity and is collected.

[0060] The present invention concentrates multiple processes on one device, and only requires one staff member to alternately feed the first contact piece 1 and the second contact piece 100 obtained by punching into the first material distribution unit 105. The staff member only needs to pay attention to the device at any time when the device is working, thereby ensuring product qualification rate and production efficiency and reducing labor costs.

[0061] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0062] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0063] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for producing a movable contact buckle for an isolating switch, wherein the movable contact buckle for the isolating switch is formed by laminating and stacking a first contact piece (1) and a second contact piece (100), and is characterized in that: Both ends of the first contact piece (1) and the second contact piece (100) are formed with a bending section (101), a contact gap (102) adapted to the static contact piece is formed between the two bending sections (101), both sides of the bending section (101) are formed with a guide arc surface (103), and the middle part of the second contact piece (100) is formed with four bending parts (104), and the four bending parts (104) realize the fixed stacking of the first contact piece (1) and the second contact piece (100) in the bent state; The steps of the production method for producing the movable contact buckle of the isolating switch are as follows: S1. Material selection: Select high elastic steel plate as blank; S2, stamping: feeding the blank into a punch press, and punching the blank to obtain a first contact piece (1) and a second contact piece (100); S3, first material separation: the first contact piece (1) and the second contact piece (100) are fed into the first material separation unit (105), the first material separation unit (105) separates each first contact piece (1) or second contact piece (100) into pieces, and the separated first contact piece (1) or second contact piece (100) is clamped and shifted to the next processing station by the first shifting mechanism (106); S4, bending and forming: the first material distribution unit (105) sends the first contact piece (1) or the second contact piece (100) to the bending and forming assembly, and the first forming unit (107) and the second forming unit (108) respectively complete the bending and forming of the bending section (101) and the guide arc surface (103); S5, second material distribution: the second transposition mechanism (109) clamps and transposes the first contact piece (1) or the second contact piece (100) processed by the first molding unit (107) to the second molding unit (108), and clamps and transposes the first contact piece (1) or the second contact piece (100) processed by the second molding unit (108) to the detection mechanism (110). The detection mechanism (110) detects the first contact piece (1) or the second contact piece (100) and clamps and transposes the first contact piece (1) or the second contact piece (100) to the second material distribution unit (113) through the third transposition mechanism (112); S6, classified stacking: the third transposition mechanism (112) transposes the first contact piece (1) or the second contact piece (100) to the second material distribution unit (113) through the detection signal of the detection mechanism (110) and performs classified stacking at the same time; S7, stacking and fixing: the first contact piece (1) and the second contact piece (100) after being classified and stacked are sequentially clamped and sent to the stacking mechanism (115) by the alternating feeding mechanism (114). The stacking mechanism (115) fixes the stacked first contact piece (1) and the second contact piece (100) to obtain a moving contact buckle for the isolating switch.

2. The method for producing a movable contact buckle for an isolating switch according to claim 1, characterized in that: The first material distribution unit (105) includes a first substrate (2) and a first fixed seat (200) is fixed on the first substrate (2), a material discharge port (201) is opened at the center of the first fixed seat (200), a supporting plate (202) is provided on the first fixed seat (200) at the material discharge port (201), two supporting cylinders (203) are provided on the left and right sides of the material discharge port (201), and the supporting cylinders (203) are driven and connected to two supporting members (204), a plurality of limiting rods (205) are distributed on the upper surface of the first fixed seat (200) at the corresponding positions of the material discharge port (201), and a stacking interval for stacking the first contact piece (1) or the second contact piece (100) is formed between each of the limiting rods (205), and two clamping cylinders (206) are provided on the top surface of the first fixed seat (200) at the left and right sides of the material discharge port (201), and the clamping cylinders (206) are driven and connected to a clamping plate (207); The upper surface of the first substrate (2) is located below the first fixed seat (200) and is provided with two slide rails (208) correspondingly, the two slide rails (208) are provided with a slide seat (209) and the slide seat (209) is provided with a material receiving seat (210), and the lower surface of the first substrate (2) is provided with two lifting cylinders (211) corresponding to the discharge port (201), and the output shafts of the two lifting cylinders (211) pass through the first substrate (2) and are connected to a lifting column (212).

3. The method for producing a movable contact buckle for an isolating switch according to claim 2, characterized in that: The first molding unit (107) includes a first stand (3), an electric push rod (300) is installed on the top surface of the first stand (3), an output shaft of the electric push rod (300) passes through the first stand (3) and is connected to a drive plate (301), an upper molding die (302) is connected below the drive plate (301), a lower molding die (303) is provided on the top surface of the first substrate (2) at a position corresponding to the upper molding die (302), and the second molding unit (108) has the same working principle as the first molding unit (107).

4. The method for producing a movable contact buckle for an isolating switch according to claim 3, characterized in that: The top surface of the first substrate (2) is located on the left and right sides of the lower molding die (303), and two deceleration units (304) are correspondingly provided. The left and right sides of the upper molding die (302) are correspondingly provided with two contact blocks (305) that cooperate with the deceleration unit (304). The deceleration unit (304) includes a base (306), a hydraulic cylinder (307), a movable plug (308) and a driving rod (309). The movable plug (308) includes a columnar portion (310) and a plug head portion (311). The columnar portion (310) extends through the outside of the hydraulic cylinder (307) and is slidably matched with the through hole. The plug head portion (311) is slidably provided in the hydraulic cylinder (307) and separates the hydraulic cylinder (307) to form two liquid cavities containing oil. The plug head portion (311) is distributed with a plurality of first liquid holes (312), and the two liquid cavities are connected through each first liquid hole (312). Each of the first liquid holes (312) is arranged circumferentially with the movable plug (308) as the axis, and an assembly recess (313) is provided on the lower surface of the plug head (311) at a position corresponding to each row of the first liquid holes (312), and a positioning slide (314) is built into the assembly recess (313). The positioning slide (314) is in a strip-shaped structure and has slide grooves (315) symmetrically provided on both sides. A baffle (316) is provided on the lower surface of the positioning slide (314), and the baffle (316) is in sliding engagement with the positioning slide (314) through the slide groove (315), and a second liquid hole (317) is provided on the positioning slide (314) at a position corresponding to each of the first liquid holes (312), and the baffle (316) is provided with a third liquid hole (318) that cooperates with each of the first liquid holes (312) and the second liquid hole (317); The columnar portion (310) is formed with a through hole (319) and the driving rod (309) is slidably arranged in the through hole (319). The upper end of the driving rod (309) extends through the through hole (319) and is connected to the contact plate (320). The lower end of the driving rod (309) is located at the corresponding position of each baffle (316) and is rotatably connected to a hinged arm (321). The other end of each hinged arm (321) is hingedly matched with the corresponding baffle (316). A first spring (322) is sleeved between the base (306) and the contact plate (320), and a second spring (323) is sleeved between the contact plate (320) and the columnar portion (310).

5. The method for producing a movable contact buckle for an isolating switch according to claim 2, characterized in that: The detection mechanism (110) includes a second stand (324) and a detection unit (325) mounted on the second stand (324), wherein the detection unit (325) is used to identify the first contact piece (1) or the second contact piece (100) on the detection platform (326), and a detection platform (326) is provided on the upper surface of the first substrate (2) at a position corresponding to the detection unit (325), and two lifting cylinders (327) are provided on the upper surface of the first substrate (2) at the left and right sides of the detection platform (326), and the output shafts of the two lifting cylinders (327) are connected to a lifting plate (328), and a telescopic cylinder (329) is provided on the top surface of the lifting plate (328), and the output shaft of the telescopic cylinder (329) is connected to a rotating cylinder (330), and the output shaft of the rotating cylinder (330) is connected to a flip clamp (331).

6. The method for producing a movable contact buckle for an isolating switch according to claim 5, characterized in that: The second material distributing unit (113) is located on the second substrate (7). The second material distributing unit (113) has the same working principle as the first material distributing unit (105) and has two material discharge ports (201). The second substrate (7) is provided with a slide rail (208), a slide seat (209) and a material receiving seat (210) at the two material discharge ports (201).

7. The method for producing a movable contact buckle for an isolating switch according to claim 1, characterized in that: The stacking mechanism (115) includes a conveyor belt (4) arranged on the second base plate (7), the conveyor belt (4) transports from right to left, a plurality of stacking seats (400) are arranged at equal intervals on the conveyor belt (4), and a first fixing unit (401) and a second fixing unit (402) are arranged on the second base plate (7) in sequence from right to left at positions corresponding to the conveyor belt (4).

8. The method for producing a movable contact buckle for an isolating switch according to claim 7, characterized in that: The first fixing unit (401) comprises a first support frame (403), a first electric cylinder (404) is mounted on the first support frame (403), an output shaft of the first electric cylinder (404) passes through the first support frame (403) and is connected to a punching die (405), the punching die (405) having four first punches (406) for performing a first bend on the bending portion (104); The second fixing unit (402) includes a second support frame (407), a second electric cylinder (408) is installed on the second support frame (407), an output shaft of the second electric cylinder (408) passes through the second support frame (407) and is connected to a limiting die head (409), two supporting base plates (410) are installed on the inner side of the second support frame (407) on both sides of the conveyor belt (4), and two third electric cylinders (411) are installed on each of the supporting base plates (410), and the four third electric cylinders (411) are distributed in a rectangular shape and are all connected to a second punch (412) for performing a secondary bending on the bending portion (104).

9. The method for producing a movable contact buckle for an isolating switch according to claim 7, characterized in that: The alternating feeding mechanism (114) comprises two supporting frames (5), a transverse mold base (500) is mounted on the two supporting frames (5), a lifting mold base (501) is slidingly provided on the left side of the transverse mold base (500), a driving base (502) is connected to the left end of the lifting mold base (501), and the driving base (502) is connected to a mechanical gripper (503) for alternately grasping the first contact piece (1) and the second contact piece (100).

10. A movable contact buckle for an isolating switch, manufactured by the method for producing a movable contact buckle according to claim 1, wherein the movable contact buckle for an isolating switch is formed by laminating and stacking a first contact piece (1) and a second contact piece (100), and is characterized in that: Both ends of the first contact piece (1) and the second contact piece (100) are formed with a bending section (101), a contact gap (102) adapted to the static contact piece is formed between the two bending sections (101), both sides of the bending section (101) are formed with a guide arc surface (103), and the middle part of the second contact piece (100) is formed with four bending parts (104), and the four bending parts (104) realize the fixed stacking of the first contact piece (1) and the second contact piece (100) in the bent state.

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