Wiring and welding assembly line for automobile heating pad
By designing the automobile heating pad wiring welding assembly line, the pre-positioning station, welding station, detection station and heat shrink tube installation station are used, combined with the conveying device and the conveying fixture, the positioning accuracy and placement stability caused by the parallel setting of the conductors is solved. Problem, efficient automated processing and welding are achieved.
Patent Information
- Application Number
- CN202411599962.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-02-18
AI Technical Summary
In the production of existing automotive heating pads, the parallel arrangement of wires leads to low positioning accuracy and placement stability of the centrifugal rotating disc, resulting in unsuccessful sockets and affecting production efficiency.
A kind of automobile heating pad wiring welding assembly line is designed, including pre-positioning stations, welding stations, detection stations and heat shrinkage tube installation stations. The automatic positioning and processing of the conductors are achieved through the conveying device and the conveying fixture, which improves the heat shrinkage. Butt accuracy between casing and wire ends.
Through automated terminal installation and heat shrink sleeve installation and processing, the positioning accuracy and butt accuracy of the conductors are improved, and production efficiency and welding accuracy are enhanced.
Smart Images
Figure CN119458887A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile product manufacturing, and in particular to an automobile heating pad wiring and welding assembly line. Background Art
[0002] A car heating pad is a seat cushion that heats the car seat so that people do not feel cold when driving.
[0003] The car heating pad uses electric energy for heating, so the heating pad includes a flexible heating body and a wire that are fixedly connected to each other. There are two wires, and the ends of the two wires are close to each other and arranged in parallel. Each end of the wire is provided with a terminal, and the terminal will be welded and fixed to the end of the wire; after fixation, an insulating protective cover is put on the end of the wire, and the protective cover is tightly wrapped around the end of the wire through heat shrinkage treatment.
[0004] At present, in order to improve the production efficiency of heating pads, a device for automatically sleeve heat shrink tubes is usually used. The automatic sleeve heat shrink tube sleeve device mainly includes a centrifugal rotating disk and a moving mechanism. The centrifugal rotating disk transmits the heat shrink tubes one by one, and the moving structure controls the wire to move toward the discharge end of the centrifugal rotating disk, and finally the wire end is inserted into the heat shrink tube. Since there are two wires parallel to each other, the positioning accuracy and placement stability of the heat shrink tube in place at the end of the centrifugal rotating disk are low, and sleeve failures often occur, affecting production efficiency. Summary of the invention
[0005] In order to improve the above problems, the present application provides a wiring welding production line for an automobile heating pad.
[0006] The present application provides a wiring welding production line for automobile heating pads, which adopts the following technical solutions: A wiring and welding assembly line for automobile heating pads, comprising a frame, wherein the frame is directionally provided with a plurality of stations, including a pre-positioning station, a welding station, a detection station and a heat shrink tube installation station, wherein the frame is provided with a conveying device, wherein the conveying device is used to directionally convey the heating pad along each station, wherein the pre-positioning station is used to position two wires of the heating pad relative to each other, wherein the welding station is used to weld and fix the terminal to the end of the wire, wherein the detection station is used to detect the conductivity of the end of the wire, wherein the heat shrink tube installation station is used to install and fix the heat shrink tube to the end of the wire; wherein a feeding mechanism, a targeting fixture and a docking mechanism are provided at the heat shrink tube installation station of the frame, wherein the feeding mechanism is used to convey the heat shrink tube to the docking mechanism, wherein the docking mechanism is used to move the heat shrink tube toward the targeting fixture and dock the heat shrink tube with the end of the wire, wherein the targeting fixture is used to fix the wire when the wire and the heat shrink tube are docked.
[0007] By adopting the above technical solution, the wires pass through each workstation in turn for automated terminal installation and heat shrink tubing installation processing. When installing the heat shrink tubing, the wires are "fixed" on the frame by a targeting fixture, and it remains stationary with high position accuracy. The docking mechanism carries the feeding mechanism to supply the heat shrink tubing close to the wire. The docking mechanism has a positioning effect on each heat shrink tubing, thereby improving the docking accuracy of the heat shrink tubing and the wire end.
[0008] Preferably, the conveying device includes an electric slide and a conveying fixture, the electric slide is arranged on a frame, the length direction of the electric slide is the arrangement direction of the multiple workstations, the conveying fixture includes a base seat, a lower clamping block and an upper clamping block, the base seat and the slider of the electric slide are fixedly connected, and a clamping drive assembly is arranged on the base seat, and the clamping drive assembly is used to control the upper clamping block and the lower clamping block to move closer to or away from each other, and the upper clamping block and the lower clamping block respectively abut against the opposite sides of the wire.
[0009] By adopting the above technical solution, the conveying fixture clamps the wire and passes it through each processing station for corresponding processing. The initial posture of the wire on the conveying fixture is consistent with that of each station, and there is no need to manually straighten the wire multiple times, thereby improving processing efficiency and positioning accuracy.
[0010] Preferably, the clamping drive assembly includes a driving cylinder, which is fixedly connected to the base seat, and the lower clamping block is fixedly connected to the piston rod of the driving cylinder. Two synchronization rods are provided on the base seat, one end of the synchronization rod is hinged to the base seat, and the other end is hinged to the upper clamping block. The two synchronization rods are equal in length and their length directions are parallel to each other. A clamp control rod is hinged to the lower clamping block, and the clamp control rod is hinged to one of the synchronization rods at the same time. The axial directions of the hinge axis on the clamp control rod and the hinge axis on the synchronization rod are parallel to each other. A plurality of clamp grooves are provided on the lower clamping block, and the clamp grooves are for the wires to pass through.
[0011] By adopting the above technical solution, the upper clamping block forms a parallelogram mechanism based on the base block through two synchronous rods. The upper clamping block swings relative to the base seat through the parallelogram mechanism, and its own posture remains unchanged during the swing.
[0012] Preferably, a terminal positioning assembly, a placement threshold and a gate are provided at the pre-positioning station on the frame, and the terminal positioning assembly includes a depth alignment block and a terminal clamp, and one end of the wire with a terminal is vertically abutted against the depth alignment block, and the terminal clamp is arranged on the depth alignment block and is used to clamp the end of the wire.
[0013] Preferably, the frame is also provided with a placing threshold and a gate plate, the placing threshold and the frame are fixedly connected and are located on the side of the depth alignment block facing the conductor, the gate plate and the frame slide relatively, and the sliding direction is close to or away from the placing threshold, and two positioning notches are provided on the side of the gate plate facing the placing threshold, and a single positioning notch is provided for a conductor to pass through; the depth alignment block and the frame are slidably connected, and the sliding direction is perpendicular to the length direction of the conductor, and the clamping point of the conveying clamp on the conductor is located between the placing threshold and the end clamp.
[0014] By adopting the above technical solution, the end positioning component, the gate plate and the placement threshold cooperate with each other to position each wire at two points. The clamping position of the conveying fixture on the wire is between the two points where the wire is positioned, so the conveying fixture has a higher positioning accuracy for the wire.
[0015] Preferably, a feeding mechanism and a docking mechanism are provided at the heat shrink tube installation station on the frame, the feeding mechanism includes a feeding roller, a cutting knife and a transfer assembly, the feeding roller is rotatably connected to the frame, a raw material reel is rotatably provided on the frame, the heat shrink tube raw material is wound around the raw material reel, the feeding roller and the heat shrink tube raw material are in rolling contact, the cutting knife is located on the side of the feeding roller away from the raw material reel and is slidably connected to the frame, the sliding direction of the cutting knife is perpendicular to the length direction of the heat shrink tube raw material, the transfer assembly is located on the side of the cutting knife away from the feeding roller, the transfer assembly is used to transport the heat shrink tube cut off by the cutting knife to the docking mechanism, and the docking mechanism is used to move the heat shrink tube toward the wire.
[0016] By adopting the above technical solution, the feed roller cuts the heat shrink tube raw material with the cutting knife to produce the heat shrink tube, and the transfer component then transports the heat shrink tube to the docking mechanism to wait for assembly.
[0017] Preferably, the docking mechanism includes a propulsion seat, which is slidably connected to the frame, the sliding direction of the propulsion seat is consistent with the length direction of the wire, a temporary pin is fixedly connected to the propulsion seat, the length direction of the temporary pin is consistent with the sliding direction of the propulsion seat, the heat shrink sleeve is hung on the temporary pin, there are two temporary pins, and a single temporary pin is coaxially aligned with a wire.
[0018] Preferably, the docking mechanism further comprises a pusher body, which is slidably disposed on the pusher seat, the sliding direction of the pusher body is consistent with the sliding direction of the pusher seat, and the pusher body abuts against one end of the heat shrinkable sleeve away from the targeting clamp.
[0019] By adopting the above technical solution, a temporary pin rod is used for temporarily hanging the heat shrinkable sleeve, so that the heat shrinkable sleeve and the push seat can remain relatively stable, the pusher body moves closer to the wire relative to the push seat, the heat capacity sleeve moves due to the thrust, and is removed from the temporary pin rod and put on the end of the wire.
[0020] Preferably, a heat shrink gun and a heat shrink clamp cylinder are provided at the heat shrink tube installation station of the rack, the heat shrink gun is used to spray a hot air flow toward the heat shrink tubing at the end of the wire, the heat shrink clamp cylinder is slidably connected to the rack, the heat shrink clamp cylinder is used to move the wire from the targeting fixture to the heat shrink gun, and the clamping jaws of the heat shrink clamp cylinder are wrapped with high-temperature tape.
[0021] By adopting the above technical solution, when the clamping jaws of the heat shrink clamping jaw cylinder clamp the wire, the high-temperature tape and the wire are in direct contact, thereby reducing the probability of adhesion between the wire and the clamping jaw in a high-temperature environment.
[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of the feeding mechanism, the targeting fixture and the docking mechanism, the wire is "fixed" on the frame through the targeting fixture, which remains stationary and has a high position accuracy. The docking mechanism carries the heat shrinkable tube supplied by the feeding mechanism close to the wire. The docking mechanism has a positioning effect on each heat shrinkable tube, thereby improving the docking accuracy of the heat shrinkable tube and the wire end; 2. Through the setting of the pre-positioning station and the transfer fixture, the operator first adjusts the wire end with the terminal at the pre-positioning station to make it in the posture to be welded, and then the transfer fixture transfers the two wires to the welding station for welding, the inspection station for conductivity testing, and the heat shrink tube installation station for heat shrink tube installation while keeping the posture unchanged, thereby improving the automation degree of welding positioning and welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the wiring and welding assembly line for the automobile heating pad in the embodiment of the present application.
[0024] Figure 2 It is a structural schematic diagram used to embody the pre-positioning mechanism in the embodiment of the present application.
[0025] Figure 3 It is a schematic diagram of the structure used to reflect the conveying clamp clamping the wire in the embodiment of the present application.
[0026] Figure 4 It is a schematic diagram of the structure used to reflect the case where the pre-positioning mechanism does not clamp the wire in the embodiment of the present application.
[0027] Figure 5 yes Figure 1 A partial enlarged view of part A in the middle.
[0028] Figure 6 It is a structural schematic diagram used to reflect the heat shrink tube installation station in the embodiment of the present application.
[0029] Figure 7 It is a structural schematic diagram used to reflect the docking mechanism in the embodiment of the present application.
[0030] Description of the accompanying drawings: 1. frame; 11. terminal crimping station; 111. terminal crimping machine; 12. pre-positioning station; 13. welding station; 131. welding gun; 132. welding fixture; 14. detection station; 141. metal clamp; 15. heat shrink tube installation station; 151. raw material reel; 152. heat shrink air gun; 16. conveying device; 161. electric slide; 17. heat shrink clamp cylinder; 171. high temperature tape; 2. conveying fixture; 21. base; 22. upper clamp; 23. lower clamp; 231. extension plate; 232. fixture slot; 24. clamping drive assembly; 241. drive cylinder; 242. synchronization rod; 243. fixture control rod; 3. pre-positioning mechanism; 31 , placing threshold; 32, gate; 33, opening piece; 331, positioning notch; 34, end fixture; 341, cylinder body; 342, clamping rod; 3421, clamping groove; 35, end positioning assembly; 351, depth alignment block; 352, alignment groove; 4, targeting fixture; 41, fixed threshold; 42, lifting plate; 421, correction groove; 5, feeding mechanism; 51, feeding roller; 52, cutting knife; 53, transfer assembly; 531, transfer cylinder; 532, transfer groove; 6, docking mechanism; 61, pushing seat; 62, temporary pin rod; 63, pushing body; 7, heating pad; 71, wire; 72, heat shrink tubing; 721, heat shrink tubing raw material; 73, thermal resistance copper wire; 74, terminal. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-7 This application is described in further detail.
[0032] The present application embodiment discloses a wiring welding assembly line for an automobile heating pad, such as Figure 1 and 2 As shown, it includes a frame 1, on which a terminal crimping station 11, a pre-positioning station 12, a welding station 13, a detection station 14 and a heat shrink tube installation station 15 are sequentially arranged along a direction. A conveying device 16 is provided on the frame 1, and the conveying device 16 is used to directionally transport the heating pad 7 along each station in the above sequence. The number of wires 71 on a single heating pad 7 is two, and the two wires 71 are arranged in parallel. The terminal crimping station 11 is used to install the terminal 74 on the end of the wire 71, the pre-positioning station 12 is used to position the two wires 71 of the heating pad 7 relative to each other, the welding station 13 is used to weld and fix the terminal 74 to the end of the wire 71, the detection station 14 is used to detect the conductivity of the end of the wire 71, and the heat shrink tube installation station 15 is used to install and fix the heat shrink tube 72 on the end of the wire 71.
[0033] like Figure 1 and2 As shown, a terminal crimping machine 111 is fixedly installed at the terminal crimping station 11 on the frame 1. The operator needs to manually place the end of the wire 71 on the terminal crimping machine 111, and then the terminal crimping machine 111 is started to press the terminal 74 onto the end of the wire 71, so that the terminal 74 and the wire 71 and the thermal resistance copper wire 73 are mutually clamped. The thermal resistance copper wire 73 is coated with a protective layer, so at this time, the thermal resistance copper wire 73 and the wire 71 are not mutually conductive.
[0034] like Figure 1 and 2 As shown, a pre-positioning mechanism 3 is provided at the pre-positioning station 12 on the frame 1, and the pre-positioning mechanism 3 includes an end positioning component 35, a placement threshold 31 and a gate plate 32. The end positioning component 35 includes a depth alignment block 351 and an end clamp 34. The placement threshold 31 is fixedly connected to the frame 1, and the gate plate 32 is located above the placement threshold 31 and is slidably arranged on the frame 1, and the sliding direction is vertical up and down. The depth alignment block 351 is located on the side of the placement threshold 31 away from the operator, and the operator manually passes the wire 71 through the gap between the placement threshold 31 and the gate plate 32 and approaches the depth alignment block 351.
[0035] like Figure 2 As shown, the depth alignment block 351 has two alignment slots 352 on the side facing the placement threshold 31, and a contact sensor (not shown in the figure) is provided on the depth alignment block 351 and in the alignment slot 352, and the contact sensor is electrically connected to the control system of the end fixture 34; the end fixture 34 is installed on the side of the depth alignment block 351 facing the wire 71, and the end fixture 34 is a clamping claw cylinder, which includes a cylinder body 341 and two clamping rods 342, the cylinder body 341 is fixedly connected to the depth alignment block 351, and the two clamping rods 342 are both slidably connected to the cylinder body 341 The sliding directions are relative or opposite and both are vertical, the length directions of the two clamping rods 342 are both horizontal, the alignment groove 352 is located between the two clamping rods 342, and the clamping rod 342 is provided with a clamping groove 3421 which matches the end of the wire 71. The arrangement direction of the two wires 71 when they are close to the depth alignment block 351 is horizontal. When the terminals 74 at the ends of the two wires 71 are in contact with the contact sensors at the same time, the clamping claw cylinder is started, and the two clamping rods 342 move toward each other and clamp the ends of the two wires 71 through the clamping groove 3421.
[0036] like Figure 2As shown, four opening pieces 33 are fixedly connected to the side of the gate plate 32 facing the placement threshold 31, and a positioning notch 331 is formed between two adjacent opening pieces 33. When the wire 71 is placed on the placement threshold 31, the gate plate 32 moves downward, and a single positioning notch 331 can horizontally position a wire 71. The wire 71 then abuts against the placement threshold 31, the gate plate 32 and the inner wall of the positioning notch 331 at the same time, and the relative positions of the two wires 71 are determined.
[0037] like Figure 2 As shown, the depth alignment block 351 is slidably connected to the frame 1, and the sliding direction is horizontal and consistent with the insertion direction of the wire 71, that is, the depth alignment block 351 can move close to or away from the placement threshold 31, and the frame 1 is provided with a driving source (not shown in the figure) for controlling the movement of the depth alignment block 351. After the end of the wire 71 is clamped by the end clamp 34, the depth alignment block 351 moves away from the placement threshold 31, so that a gap is formed between the end of the wire 71 and the placement threshold 31, and then the gate 32 moves down, and the two wires 71 are respectively inserted into the corresponding positioning notches 331; at this time, the two wires 71 between the end clamp 34 and the gate 32 have a high degree of certainty in position and posture, and this part of the wire 71 is the force application point to be clamped by the transfer clamp 2.
[0038] like Figure 1 and 3 As shown, the conveying device 16 includes an electric slide 161 and a conveying clamp 2. The electric slide 161 is fixedly connected to the frame 1. The conveying clamp 2 is arranged on the slider of the electric slide 161, and the sliding range of the slider is from the pre-positioning station 12 to the heat shrink tube installation station 15; the conveying clamp 2 is arranged on the slider of the electric slide 161, and the conveying clamp 2 is used to clamp and fix the two wires 71 of the heating pad 7 during the sliding process of the slider.
[0039] like Figure 3 and 4 As shown, the conveying fixture 2 includes a base 21, a lower clamping block 23, an upper clamping block 22 and a clamping drive assembly 24. The base 21 is fixedly connected to the slider of the electric slide 161. The lower clamping block 23 and the upper clamping block 22 are respectively movable relative to the base 21. The clamping drive assembly 24 is used to control the upper clamping block 22 and the lower clamping block 23 to move closer to or away from each other. The clamping drive assembly 24 includes a driving cylinder 241, which is fixedly connected to the base 21. The telescopic direction of its piston rod is the vertical direction. The lower clamping block 23 is fixedly connected to the piston rod of the driving cylinder 241, that is, the movable mode of the lower clamping block 23 is sliding up and down.
[0040] like Figure 3 and 4As shown, two synchronization rods 242 are provided on the top of the base 21, one end of the synchronization rod 242 is hinged to the base 21, and the other end is hinged to the upper clamping block 22. The lengths of the two synchronization rods 242 are equal and the length directions are parallel to each other. Thus, the upper clamping block 22 forms a parallelogram mechanism based on the base block through the two synchronization rods 242. The upper clamping block 22 is in the shape of a long rod and the length direction is always kept horizontal. A clamp control rod 243 is hinged to the lower clamping block 23, and the clamp control rod 243 is hinged to one of the synchronization rods 242 at the same time. The axial directions of the hinge axis on the clamp control rod 243 and the hinge axis on the synchronization rod 242 are parallel to each other, and the axial directions are both horizontal and perpendicular to the length direction of the upper clamping block 22. When the piston rod of the driving cylinder 241 is extended and retracted, the lower clamping block 23 applies torque to the synchronization rod 242 through the clamp control rod 243 to make it rotate, and the upper clamping block 22 swings relative to the base 21. When the piston rod of the driving cylinder 241 extends upward, the lower clamping block 23 and the upper clamping block 22 approach each other, and the two wires 71 are located therebetween.
[0041] like Figure 3 and 4 As shown, the lower clamp block 23 has two integrally formed extension plates 231 on one side facing the upper clamp block 22, the plate surface of the extension plate 231 is perpendicular to the hinge axis of the synchronization rod 242, and a plurality of clamp grooves 232 are provided on the extension plate 231. When the upper clamp block 22 and the lower clamp block 23 clamp and abut the wire 71 up and down, the clamp groove 232 allows the wire 71 to pass through, thereby determining the relative positions of the two wires 71; when the upper clamp block 22 moves close to the lower clamp block 23, it enters the space between the two extension plates 231, that is, the lower edge of the upper clamp block 22 is located within the depth range of the clamp groove 232, and the wire 71 is not easy to escape from the clamp groove 232.
[0042] like Figure 1 and 5 As shown, after the conveying fixture 2 clamps the wire 71, the end fixture 34 and the gate 32 are opened at the same time, and the conveying fixture 2 carries the wire 71 to move to the welding station 13, and the placement direction of the two wires 71 is consistent with the moving direction of the conveying fixture 2. A welding fixture 132 and a welding gun 131 are provided at the welding station 13 of the frame 1. The welding fixture 132 works in a pneumatic manner. When the conveying fixture 2 carries the wire 71 and moves to the welding fixture 132, the welding fixture 132 further clamps the end of the wire 71. After the welding fixture 132 clamps the end of the wire 71, the welding gun 131 is aligned with the end of the wire 71 for welding, and the protective layer outside the thermal resistance copper wire 73 is melted, and the wire 71 and the terminal 74 and the thermal resistance copper wire 73 are fixed and conductive.
[0043] like Figure 5As shown, after welding is completed, the welding fixture 132 releases the wire 71, and the conveying fixture 2 continues to carry the wire 71 to move. A resistance detector is provided at the detection station 14 of the rack 1, and the resistance detector includes a metal clamp 141, and the metal clamp 141 is slidably connected to the rack 1. When the conveying fixture 2 carries the wire 71 to the detection station 14, the metal clamp 141 clamps the end of the wire 71, and detects its resistance value by the volt-ampere method, so as to determine the circuit conduction of the wire 71 and the terminal 74 and the thermal resistance copper wire 73. If the conduction fails, the conveying fixture 2 will release the wire 71, and the operation will remove the defective product from the production line.
[0044] like Figure 1 and 6 As shown, for the qualified wire 71, the conveying fixture 2 continues to carry it to the heat shrink tube installation station 15. The frame 1 is provided with a feeding mechanism 5, a targeting fixture 4, a docking mechanism 6 and a heat shrink air gun 152 at the heat shrink tube installation station 15. The targeting fixture 4 is used to fix two parallel wires 71; the feeding mechanism 5 is used to make a hot melt sleeve of a determined size and transport the heat-capable sleeve to the docking mechanism 6, and the docking mechanism 6 is used to cover the heat-capable sleeve on the end of the wire 71. The heat shrink air gun 152 transports hot air to the heat shrink sleeve 72.
[0045] like Figure 6 As shown, the targeting fixture 4 includes a fixed threshold 41 and a lifting plate 42, the fixed threshold 41 is fixedly connected to the frame 1, the lifting plate 42 is located above the fixed threshold 41 and is slidably connected to the frame 1, and the sliding direction is the vertical direction; the lifting plate 42 is fixedly connected to a side of the fixed threshold 41 with a plurality of iron sheets, and a correction groove 421 is formed between adjacent iron sheets, and the number of the correction grooves 421 is consistent with the number of the wires 71 and the two correspond to each other. Two wires 71 are placed on the fixed threshold 41, the lifting plate 42 moves downward, the correction groove 421 and the wires 71 are matched and docked, and the wires 71 are simultaneously abutted against the lifting plate 42 and the fixed threshold 41, and the wires 71 are thus "fixed" on the frame 1. When the wires 71 are fixed by the targeting fixture 4, the upper clamping block 22 and the lower clamping block 23 of the conveying fixture 2 move away from each other, the upper clamping block 22 rotates to a position lower than the wires 71, and then the slider of the electric slide 161 moves in the opposite direction, so that the conveying fixture 2 returns to the pre-positioning station 12.
[0046] like Figure 6As shown, the feeding mechanism 5 includes a feeding roller 51, a material cutting knife 52 and a transfer assembly 53. Two raw material reels 151 are rotatably arranged on the frame 1. The heat shrink tube raw material 721 is wound around the raw material reel 151. The heat shrink tube raw material 721 can be unwound by rotating the raw material reel 151; the feeding roller 51 is rotatably connected to the frame 1, and a motor (not shown in the figure) is arranged on the frame 1 for driving the feeding roller 51 to rotate. The feeding roller 51 and the heat shrink tube raw material 721 are in rolling contact with each other, and the heat shrink tube raw material 721 is driven to move by friction force and removed from the raw material reel 151. The cutting knife 52 is located on the side of the feeding roller 51 away from the raw material reel 151 and is slidably connected to the frame 1. The sliding direction of the cutting knife 52 is perpendicular to the length direction of the heat shrink tube raw material 721. In this embodiment, the length direction and the moving direction of the heat shrink tube raw material 721 discharged by the cutting knife 52 are consistent, both in the horizontal direction, and the moving direction of the cutting knife 52 is the vertical direction. The transfer component 53 is located on the side of the cutting knife 52 away from the feeding roller 51. The cutting knife 52 can cut off two heat shrink tubes in a single movement. The transfer component 53 is used to receive two heat shrink tubes 72 and transport them to the docking mechanism 6.
[0047] like Figure 6 As shown, the transfer component 53 includes a transfer cylinder 531, which is slidably connected to the frame 1. A driving source for controlling the sliding of the transfer cylinder 531 is provided on the frame 1. The sliding direction of the transfer cylinder 531 is horizontal and perpendicular to the length direction of the heat shrinkable sleeve 72; the transfer cylinder 531 is a clamping cylinder, and the clamping jaws of the clamping cylinder move vertically toward or away from each other. Two transfer grooves 532 are provided on the two clamping jaws. When the two clamping jaws abut against each other, the groove wall of the transfer groove 532 abuts against the heat shrinkable sleeve 72 to be cut off, thereby clamping the heat shrinkable sleeve 72. Then the transfer cylinder 531 can carry the two heat shrinkable sleeves 72 to move toward the docking mechanism 6.
[0048] like Figure 6 and 7As shown, the docking mechanism 6 includes a propulsion seat 61 and a pusher body 63. The propulsion seat 61 is slidably connected to the frame 1. The sliding direction of the propulsion seat 61, the length direction of the heat shrink tube 72 on the clamping claw cylinder, and the length direction of the wire 71 on the targeting fixture 4 are all parallel. The frame 1 is provided with an electric screw for driving the propulsion seat 61 to move; two temporary pins 62 are fixedly connected to the propulsion seat 61, and the length direction of the temporary pins 62 is consistent with the sliding direction of the propulsion seat 61. A single temporary pin 62 is coaxially aligned with a wire 71 on the targeting fixture 4. The pusher body 63 is slidably arranged on the propulsion seat 61, and the sliding direction of the pusher body 63 is consistent with the sliding direction of the propulsion seat 61. The propulsion seat 61 is provided with an electric screw for driving the pusher body 63 to slide. When the transfer cylinder 531 carries the heat shrink sleeve 72 to the docking mechanism 6, the heat shrink sleeve 72 thereon is located between the targeting fixture 4 and the push seat 61, and a single heat shrink sleeve 72 is coaxially aligned with a temporary pin 62. At this time, the push seat 61 moves, so that each heat shrink sleeve 72 is passed through by the corresponding temporary pin 62, the clamping claw of the clamping claw cylinder opens, and the two heat shrink sleeves 72 remain on the temporary pin 62, and the pusher body 63 and the heat shrink sleeve 72 are abutted against one end away from the targeting fixture 4; then the push seat 61 continues to move closer to the targeting fixture 4, when the heat shrink sleeve 72 contacts the end of the wire 71, the push seat 61 stops, and at the same time, the pusher body 63 moves closer to the targeting fixture 4, and the heat capacity sleeve moves under the force of the thrust, and then it is removed from the temporary pin 62 and sleeved on the end of the wire 71, thereby realizing the docking sleeve of the heat shrink sleeve 72 and the end of the wire 71.
[0049] like Figure 6 As shown, a heat shrink clamp cylinder 17 is also provided at the heat shrink tube installation station 15 of the frame 1. The heat shrink clamp cylinder 17 is slidably connected to the frame 1. After the conveying fixture 2 leaves the heat shrink tube installation station 15, the heat shrink clamp cylinder 17 moves to the targeting fixture 4 to clamp and fix the two wires 71; when the installation action of the heat shrink sleeve 72 is completed, the lifting plate 42 moves up, the targeting fixture 4 is opened, and the heat shrink clamp cylinder 17 carries the wire 71 to the heat shrink air gun 152. The gun head of the heat shrink air gun 152 is fixed with a wind hood, and the end of the wire 71 is located below the wind hood. The heat shrink air gun 152 sprays a hot air flow to the heat shrink sleeve 72 at the end of the wire 71 to shrink the heat shrink sleeve 72, thereby forming a tight wrap around the end of the wire 71. The clamping jaws of the heat shrink clamping jaw cylinder 17 are wrapped with high temperature tape 171. When the heat shrinking clamping jaw cylinder 17 clamps the wire 71, the high temperature tape 171 is in direct contact with the wire 71, which reduces the probability of adhesion between the wire 71 and the clamping jaws in a high temperature environment. Since there is no positioning requirement for the wire 71 during the process of outputting hot air flow, the clamping jaws of the heat shrinking clamping jaw cylinder 17 are not provided with a groove structure.
[0050] The implementation principle of the wiring welding assembly line of a car heating pad 7 in the embodiment of the present application is: The terminal 74 is manually clamped on the end of the wire 71, and the wire 71 and the thermal resistance copper wire 73 are relatively fixed. The next step is to pre-position the end of the wire 71, and enable the conveying fixture 2 to clamp the two wires 71 that have completed the relative positioning, which is still completed by manual operation. After the conveying fixture 2 fixes the wire 71, the conveying fixture 2 carries the wire 71 to perform welding, testing, and heat shrink tube installation processing steps in sequence. Finally, the wire 71 is handed over to the heat shrink clamp cylinder 17 at the heat shrink tube installation station 15, and the heat shrink clamp cylinder carries the wire 71 to perform heat shrinkage treatment on the heat shrink tube 72. After the processing is completed, the wiring processing of the heating pad 7 is completed.
[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A wiring welding production line for automobile heating pads, comprising a frame (1), characterized in that: The frame (1) is provided with a plurality of workstations in a directional manner, including a pre-positioning workstation (12), a welding workstation (13), a detection workstation (14) and a heat shrink tube installation workstation (15); the frame (1) is provided with a conveying device (16), the conveying device (16) is used to directional-transmit the heating pad (7) along each workstation; the pre-positioning workstation (12) is used to mutually position two wires (71) of the heating pad (7); the welding workstation (13) is used to weld and fix the terminal (74) to the end of the wire (71); the detection workstation (14) is used to detect the conductivity of the end of the wire (71); and the heat shrink tube installation workstation (15) is used to install and fix the heat shrink tube (72) to the end of the wire (71); A feeding mechanism (5), a targeting fixture (4) and a docking mechanism (6) are provided at the heat shrink tube installation station (15) of the frame (1); the feeding mechanism (5) is used to transport the heat shrink tube (72) to the docking mechanism (6); the docking mechanism (6) is used to move the heat shrink tube (72) toward the targeting fixture (4) and dock the heat shrink tube (72) with the end of the wire (71); and the targeting fixture (4) is used to fix the wire (71) when the wire (71) and the heat shrink tube (72) are docked.
2. The wiring welding line of the automobile heating pad (7) according to claim 1 is characterized in that: The conveying device (16) comprises an electric slide (161) and a conveying fixture (2), wherein the electric slide (161) is arranged on a frame (1), and the length direction of the electric slide (161) is the arrangement direction of the plurality of workstations, and the conveying fixture (2) comprises a base seat (21), a lower clamping block (23) and an upper clamping block (22), wherein the base seat (21) and the slider of the electric slide (161) are fixedly connected, and a clamping drive assembly (24) is arranged on the base seat (21), and the clamping drive assembly (24) is used to control the upper clamping block (22) and the lower clamping block (23) to move closer to or away from each other, and the upper clamping block (22) and the lower clamping block (23) respectively abut against opposite sides of the wire (71).
3. The wiring welding line of the automobile heating pad (7) according to claim 2 is characterized in that: The clamping drive assembly (24) comprises a driving cylinder (241), wherein the driving cylinder (241) is fixedly connected to the base (21), the lower clamping block (23) is fixedly connected to the piston rod of the driving cylinder (241), the base (21) is provided with two synchronization rods (242), one end of the synchronization rod (242) is hinged to the base (21), and the other end is hinged to the upper clamping block (22), the two synchronization rods (242) are equal in length and their length directions are parallel to each other, a clamp control rod (243) is hinged to the lower clamping block (23), and the clamp control rod (243) is hinged to one of the synchronization rods (242), the axes of the hinge axis on the clamp control rod (243) and the hinge axis on the synchronization rod (242) are parallel to each other, and a plurality of clamp grooves (232) are provided on the lower clamping block (23), and the clamp grooves (232) are for the wires (71) to pass through.
4. The wiring welding line for automobile heating pad (7) according to claim 2 is characterized in that: The pre-positioning station (12) on the frame (1) is provided with an end positioning assembly (35), a placement threshold (31) and a gate plate (32); the end positioning assembly (35) comprises a depth alignment block (351) and an end clamp (34); one end of the wire (71) with a terminal (74) is vertically abutted against the depth alignment block (351); the end clamp (34) is arranged on the depth alignment block (351) and is used to clamp the end of the wire (71).
5. The wiring welding line of the automobile heating pad (7) according to claim 4 is characterized in that: The frame (1) is also provided with a placement threshold (31) and a gate plate (32); the placement threshold (31) and the frame (1) are fixedly connected and are located on the side of the depth alignment block (351) facing the wire (71); the gate plate (32) and the frame (1) slide relative to each other, and the sliding direction is close to or away from the placement threshold (31); two positioning notches (331) are provided on the side of the gate plate (32) facing the placement threshold (31); a single positioning notch (331) is provided for one wire (71) to pass through; the depth alignment block (351) and the frame (1) are slidably connected, and the sliding direction is perpendicular to the length direction of the wire (71); the clamping point of the conveying clamp (2) for the wire (71) is located between the placement threshold (31) and the end clamp (34).
6. A wiring and welding production line for automobile heating pads (7) according to any one of claims 2 to 5, characterized in that: A feeding mechanism (5) and a docking mechanism (6) are provided at the heat shrink tube installation station (15) on the frame (1). The feeding mechanism (5) comprises a feeding roller (51), a material cutting knife (52) and a transfer assembly (53). The feeding roller (51) is rotatably connected to the frame (1). A raw material reel (151) is rotatably provided on the frame (1). Heat shrink tube raw material (721) is wound around the raw material reel (151). The feeding roller (51) and the heat shrink tube raw material (721) are in rolling contact with each other. The material cutting knife (52) is rotatably provided on the frame (1). 52) is located on the side of the feeding roller (51) away from the raw material reel (151) and is slidably connected to the frame (1), the sliding direction of the cutting knife (52) is perpendicular to the length direction of the heat shrink tube raw material (721), the transfer component (53) is located on the side of the cutting knife (52) away from the feeding roller (51), the transfer component (53) is used to transport the heat shrink tube (72) cut by the cutting knife (52) to the docking mechanism (6), and the docking mechanism (6) is used to move the heat shrink tube (72) toward the wire (71).
7. The wiring welding line of the automobile heating pad (7) according to claim 6 is characterized in that: The docking mechanism (6) comprises a propulsion seat (61), the propulsion seat (61) is slidably connected to the frame (1), the sliding direction of the propulsion seat (61) is consistent with the length direction of the wire (71), a temporary pin rod (62) is fixedly connected to the propulsion seat (61), the length direction of the temporary pin rod (62) is consistent with the sliding direction of the propulsion seat (61), the heat shrink sleeve (72) is hung on the temporary pin rod (62), there are two temporary pin rods (62), and a single temporary pin rod (62) is coaxially aligned with a wire (71).
8. The wiring welding line of the automobile heating pad (7) according to claim 7 is characterized in that: The docking mechanism (6) further comprises a pusher body (63), which is slidably disposed on the pusher seat (61), the sliding direction of the pusher body (63) being consistent with the sliding direction of the pusher seat (61), and the pusher body (63) abuts against one end of the heat shrinkable sleeve (72) which is away from the targeting fixture (4).
9. The wiring welding line of the automobile heating pad (7) according to claim 7 is characterized in that: A heat shrink gun (152) and a heat shrink clamping claw cylinder (17) are provided at the heat shrink tube installation station (15) of the frame (1). The heat shrink gun (152) is used to spray a hot air flow toward the heat shrink tube (72) at the end of the wire (71). The heat shrink clamping claw cylinder (17) and the frame (1) are slidably connected. The heat shrink clamping claw cylinder (17) is used to move the wire (71) from the targeting fixture (4) to the heat shrink gun (152). The clamping claw of the heat shrink clamping claw cylinder (17) is wrapped with a high-temperature adhesive tape (171).