A continuous welding device for the production of connecting wires

Abstract

The present invention relates to the technical field of welding, and discloses a continuous welding device for the production of connecting wires, which includes a connector loading station, a first welding station, a rotating station, a second welding station, and a set of wire moving grippers arranged in sequence; each station is provided with a connector gripper mechanism arranged on a circulating moving mechanism; the set of wire moving grippers includes three pairs of wire replacement grippers, which move back and forth along the moving direction of the connector gripper mechanism; a pair of wire fixing grippers is arranged near the first welding station, a wire fixing gripper is arranged near the rotating station, a pair of wire loading grippers is arranged at the connector loading station, welding components are arranged above the welding stations, and a wire moving welding gripper is also arranged on one side of the second welding station, and a connector gripper rotating mechanism is arranged on one side of the rotating station. Compared with the prior art, the present invention can be used for the automatic welding operation of connecting wires, and weld two wires and a connector in sequence.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting wire welding, and particularly relates to a continuous welding device for producing connecting wires. Background Art

[0002] During the production of connecting wires, it is necessary to weld the connector and two wires respectively. After welding, the welded part is heat-shrunk and dried through a heat-shrinkable tube until the heat-shrinkable tube is dried to the welded part.

[0003] During the welding process of the connector and two wires, the traditional production method is to perform soldering manually. In this process, most of the operations are manual. The operator contacts one of the wires with the connector, performs soldering through a soldering iron head, then rotates the connector to make the un-welded joint located above, and then welds the other wire to the connector. The traditional working method has extremely low working efficiency.

[0004] In summary, it is extremely important to design an automated device that can automatically weld the connector and two wires, which can greatly improve the working efficiency of the entire production of connecting wires. Summary of the Invention

[0005] Object of the Invention: Aiming at the problems existing in the prior art, the present invention provides a continuous welding device for producing connecting wires, which can be used for the welding operation of automated connecting wires, and weld two wires and a connector in sequence.

[0006] Technical Solution: The present invention provides a continuous welding device for producing connecting wires, including a connector loading station, a first welding station, a rotation station, a second welding station, and a set of wire moving grippers arranged in sequence; the connector loading station, the first welding station, the rotation station, and the second welding station are all provided with connector gripper mechanisms, and the connector gripper mechanisms are arranged on a circulating moving mechanism, and the circulating moving mechanism drives the connector gripper mechanisms to circulate through the connector loading station, the first welding station, the rotation station, and the second welding station;

[0007] A set of wire moving grippers includes three pairs of wire changing grippers, and all three pairs of wire changing grippers are arranged on a wire changing gripper driving mechanism. The wire changing gripper driving mechanism drives the three pairs of wire changing grippers to move back and forth along the moving direction of the connector gripper mechanism. The three pairs of wire changing grippers move from being directly opposite to the first welding station, the rotation station, and the second welding station in sequence to being directly opposite to the connector loading station, the first welding station, and the rotation station in sequence. After the three pairs of wire changing grippers grip the wires, they return to being directly opposite to the first welding station, the rotation station, and the second welding station in sequence;

[0008] A pair of wire fixing jaws are arranged near the first welding station for clamping a pair of wires to be welded. A wire fixing jaw is arranged near the rotating station for clamping the wire that has not been welded yet. A pair of wire loading jaws are arranged at the connector loading station. The pair of wire loading jaws are connected to a wire loading jaw driving mechanism, and the wire loading jaw driving mechanism drives the pair of wire loading jaws to clamp a pair of wires and move them close to the connector loading station.

[0009] Welding components are arranged above both the first welding station and the second welding station. A wire moving welding jaw is also arranged on one side of the second welding station. The wire moving welding jaw is connected to a wire moving welding jaw driving mechanism, which is used to clamp the wire that has not been welded yet and move it close to the position of the connector jaw mechanism at the second welding station. A connector jaw rotating mechanism is arranged on one side of the rotating station to control the jaws of the connector jaw mechanism to rotate 180 degrees.

[0010] Further, the circular moving mechanism includes a circular chain, which is arranged in a circular shape up and down and is connected to the chain driving mechanism. A pair of straight tracks are arranged on both upper sides of the circular chain in the horizontal direction. A number of the connector jaw mechanisms are fixedly arranged on the circular chain at intervals through sliding components, and the sliding components are slidably connected to the pair of straight tracks.

[0011] The sliding component includes a fixed table. A number of rollers are arranged at the positions where the fixed table contacts the side walls of the straight tracks, and a number of rollers are also arranged at the positions where the fixed table contacts the straight tracks in the horizontal direction. The fixed table is slidably connected to the pair of straight tracks through a number of rollers.

[0012] Further, a positioning mechanism is arranged below the circular chain at the first welding station and the second welding station. The positioning mechanism includes a positioning cylinder, a positioning chuck, and a pair of limit posts arranged on the positioning chuck. A first limit groove is arranged on the lower surface of the fixed table corresponding to the limit posts. A concave groove matching the shape of the front end of the positioning cylinder's telescopic rod is formed by inward depression on the lower surface of the positioning chuck, and the telescopic rod of the positioning cylinder is located in the concave groove.

[0013] Further, a connecting plate is arranged outside the positioning chuck. The telescopic rod of the positioning cylinder passes through the connecting plate. A limit disk is vertically arranged on the outer wall of the connecting plate, and a second limit groove is arranged on the limit disk, which is directly opposite to the connector jaw mechanism. A pair of connecting columns are also arranged on the connecting plate, and the connecting columns are connected to the lower surfaces of the connecting plate and the positioning chuck.

[0014] Further, one of the pair of wire fixing jaws located at the first welding station is close to the connector jaw mechanism of the first welding station, and a cylinder for driving it to move upward and forward is also connected to this wire fixing jaw. The cylinder drives the wire fixing jaw and the wire thereon to approach the connector of the connector jaw mechanism.

[0015] Further, the wire loading jaw driving mechanism includes a first electric slide rail, and a loading jaw cylinder is fixed on the first electric slide rail through a loading connecting plate. The loading jaw cylinder is horizontally arranged, and a pair of wire loading jaws are vertically connected to its telescopic end.

[0016] Further, the wire changing jaw driving mechanism includes a second electric slide rail, and three pairs of wire changing jaws are sequentially fixed on the second electric slide rail through a changing connecting plate.

[0017] Further, the connector jaw mechanism includes a base, a jaw seat, and jaws. The base is fixed on the fixing table, a jaw seat is rotatably connected to the base, one end of the jaw seat is detachably connected with jaws. The jaws include a left jaw piece and a right jaw piece. The inner sides of the left jaw piece and the right jaw piece facing each other match the outer shape of the connector when it is vertically arranged, and the distance between the left jaw piece and the right jaw piece is the same as the outer diameter size of the connector when it is vertical.

[0018] A ball screw is connected through one of the left jaw piece and the right jaw piece, and the balls on the ball screw face the other jaw piece, and the distance between the balls and the other jaw piece is slightly smaller than the thickness size of the connector. A nut is connected to the ball screw.

[0019] Further, the connector jaw rotating mechanism is arranged on one side of the rotating station. It includes a rotating plate, the rotating plate is connected to a rotating cylinder, a connecting rod extends from the end of the jaw seat away from the jaws, and it is rotatably connected to the base through a bearing. A second groove recessed inward is formed in the middle at the end of the connecting rod, and the rotating plate is inserted into the second groove.

[0020] Further, the welding assembly includes a welding head, a solder wire is connected to the welding head, and a solder head driving mechanism is also arranged on the welding head to drive the solder head to move downward to be directly opposite to the connector of the connector jaw mechanism.

[0021] Beneficial effects:

[0022] 1. For the continuous welding device designed by the present invention, first, the connector is loaded onto the connector jaw mechanism at the connector loading station. Meanwhile, the wire loading jaws grab two wires to be welded from another position (gripper), move them to the connector loading station using the wire loading jaws, and approach the connector loading station. Then, the wire transfer jaw driving mechanism drives three pairs of wire transfer jaws to move from being aligned with the first welding station, rotation station, and second welding station in sequence to being aligned with the connector loading station, first welding station, and rotation station in sequence. One of the three pairs of wire transfer jaws moves to the connector loading station, grabs the two wires clamped by the wire loading jaws at the connector loading station, and releases the wire loading jaws at the connector loading station. The wire transfer jaw driving mechanism drives the three pairs of wire transfer jaws to return to being aligned with the first welding station, rotation station, and second welding station in sequence. At this time, the two wires grabbed from the connector loading station are located at the first welding station. A pair of wire fixing jaws at the first welding station grabs the two wires on the wire transfer jaws. One of the jaws of the pair of wire fixing jaws close to the first welding station moves upward close to the first welding station, and the welding component is started to perform the welding operation of one joint between the wire and the connector. At this time, the other wire fixing jaw holds the other wire still. After welding is completed, the wire transfer jaw driving mechanism drives the three pairs of wire transfer jaws to continue to grab wires at the previous station and move to this station to continue welding.

[0023] The two wires at the first welding station are moved to the rotation station by the wire transfer jaws. There is only one wire fixing jaw at the rotation station, which only clamps the wire that has not been welded. The wire that has been welded is fixed to the connector. After the wire transfer jaws at the rotation station are released, the connector jaw rotation mechanism rotates the connector jaw mechanism by 180 degrees. The rotation station operation is completed.

[0024] The wire transfer jaws grab the wire at the rotation station, and the wire fixing jaw at the rotation station releases the wire. The wire transfer jaws drive the wire and the connector jaw mechanism at the current station to move to the second welding station together. The wire moving welding jaws at the second welding station grab the unwelded wire and move it towards the joint above the connector on the connector jaw mechanism located at the second welding station, and the welding component is started for welding. After welding is completed, the welding operation of the entire connecting wire is completed.

[0025] Through different transfer operations, the grabbing and moving of wires between different stations are realized, and the wire grabbing and moving and the connector jaw mechanism move simultaneously to achieve unified operation. In addition, the rotation station is used to realize the angle rotation of the connector, which is convenient for the welding operation of the other wire.

[0026] 2. The present invention arranges the jaw mechanism on a circulating chain, and uses the circulating chain to achieve the periodic and cyclic work of gripping and moving the connector. In order to facilitate the stability of the jaw mechanism, a track is also arranged around the chain, allowing the jaw mechanism to move on the track, making the jaw mechanism more stable. The track is not designed at both ends of the circulating chain to facilitate the turning and circulation of the jaw mechanism. During the sliding process on the straight track, the fixed table slides by using rollers, reducing the friction with the straight track.

[0027] 3. The present invention sets a positioning mechanism below the chain. When the jaw mechanism moves to the working position and needs to stop operating under the action of the circulating chain, the positioning cylinder of the positioning mechanism drives the limiting column to insert into the limiting groove below the fixed table for positioning, fixing the fixed table, which is convenient for subsequent operations such as welding and heat shrinkage drying. A connecting plate is also arranged around the positioning chuck through a connecting column. The up and down telescoping of the positioning cylinder drives the positioning chuck and the connecting plate to move up and down, realizing positioning and at the same time realizing the movement of the limiting disc towards the jaw mechanism. When the jaw mechanism moves to the welding station, it is positioned by the positioning mechanism, and at the same time the limiting disc moves upward close to the jaws of the jaw mechanism, so that the connector clamped on the jaws is located in the second groove of the limiting disc, which is convenient for the alignment and welding of the subsequent welding head.

[0028] 4. The designed jaw structure of the present invention can be used for gripping the connector. Through the feeding mechanism of the connector, the connector can be clamped between the left jaw and the right jaw of the jaw structure. Then, the subsequent welding operation is realized by using this jaw mechanism, replacing the work of manually taking the connector, improving the work efficiency, and laying a certain foundation for the automation of the production of connecting wires. A ball screw is arranged between the left and right jaws. When the feeding mechanism clamps the connector onto the jaw structure, the gripper of the feeding mechanism presses downward to make the connector located between the left and right jaws. In this way, the connector is relatively arranged between the left and right jaws and is not easy to fall off. During the subsequent welding process, the jaw mechanism needs to rotate 180 degrees. After rotating 180 degrees, the ball screw can prevent the connector from falling off between the left and right jaws. A limiting plate is also arranged below between the left and right jaws. After the feeding structure finishes feeding, the connector will not fall off from below due to the limiting plate, playing a limiting role.

[0029] 5. The present invention realizes the back-and-forth movement of the wire-changing jaw and the wire-feeding jaw through an electric slide rail, achieving the replacement of gripping wires between different workstations. Using the electric slide rail is convenient for control, and on the basis of the electric slide rail, a cylinder is further arranged for lateral or longitudinal driving, with flexible directions.

[0030] 6. The present invention fixes the solder wire at the position of the welding head, thus realizing tinning during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1Schematic diagram of the overall structure of the present invention;

[0032] Figure 2 Schematic diagram of the wire-changing gripper and wire-loading gripper structures of the present invention;

[0033] Figure 3 Schematic diagram of the wire fixing gripper structures at the first welding station and the rotating station of the present invention;

[0034] Figure 4 Schematic diagram of the welding assembly of the present invention;

[0035] Figure 5 Enlarged schematic diagram of the welding assembly of the present invention;

[0036] Figure 6 Schematic diagram of the wire moving and welding gripper of the present invention;

[0037] Figure 7 Schematic diagram of the circulating moving mechanism of the present invention;

[0038] Figure 8 Enlarged schematic diagram of the welding stations (first and second) of the present invention;

[0039] Figure 9 Schematic diagram of the positioning mechanism of the present invention;

[0040] Figure 10 Schematic diagram of the connector gripper mechanism of the present invention;

[0041] Figure 11 Schematic diagram showing the connector gripper rotating mechanism and the connector gripper mechanism of the present invention;

[0042] Figure 12 Enlarged schematic diagram of the connector gripper mechanism of the present invention;

[0043] Figure 13 Schematic diagram of the connector of the present invention, in which the various components of the connector and their width, thickness, and height directions are marked.

[0044] Among them, 1 - Connector feeding station, 2 - First welding station, 3 - Rotating station, 4 - Second welding station, 5 - Connector jaw mechanism, 501 - Base, 502 - Jaw seat, 503 - Jaw, 504 - Left clip, 505 - Right clip, 506 - Ball screw, 507 - Nut, 508 - Limiting plate, 509 - First groove, 6 - Wire moving jaw, 601 - Wire handover jaw, 602 - Second electric slide rail, 603 - Handover connecting plate, 7 - Wire fixing jaw, 8 - Wire feeding jaw, 801 - First electric slide rail, 802 - Feeding jaw cylinder, 803 - Feeding connecting plate, 9 - Welding assembly, 901 - Welding head, 902 - Solder wire, 903 - Arc groove guide rail, 904 - Fixing piece, 905 - Fourth electric slide rail, 906 - Fifth electric slide rail, 10 - Wire moving welding jaw, 1001 - Third electric slide rail, 1002 - Welding jaw driving cylinder 1, 1003 - Welding jaw driving cylinder 2, 11 - Connector jaw rotating mechanism, 1101 - Rotating plate, 1102 - Rotating cylinder, 1103 - Second groove, 1104 - Connecting rod, 12 - Circular moving mechanism, 1201 - Circular chain, 1202 - Straight track, 1203 - Fixed table, 1204 - Roller, 1205 - Positioning cylinder, 1206 - Positioning chuck, 1207 - Limiting post, 1208 - First limiting groove, 1209 - Concave groove, 1210 - Connecting plate, 1211 - Limiting disc, 1212 - Second limiting groove, 1213 - Connecting column, 13 - Connector, 1301 - Connector end, 1302 - Connector tail, 1303 - Connector head. Detailed implementation manner

[0045] The present invention will be introduced in detail below with reference to the accompanying drawings.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0047] The present invention discloses a continuous welding device for the production of connecting wires. Refer to the attached Figure 1, including a connector loading station 1, a first welding station 2, a rotating station 3, a second welding station 4, and a set of wire moving jaws 6 arranged in sequence; the connector loading station 1, the first welding station 2, the rotating station 3, and the second welding station 4 are all provided with connector jaw mechanisms 5, and the connector jaw mechanisms 5 are arranged on a circulating moving mechanism 12, and the circulating moving mechanism 12 drives the connector jaw mechanisms 5 to circulate through the connector loading station 1, the first welding station 2, the rotating station 3, and the second welding station 4.

[0048] For the circulating moving mechanism 12 and the connector jaw mechanism 5, the structure is shown in the appendix Figures 7 to 11 , the circulating moving mechanism 12 includes a circulating chain 1201, the circulating chain 1201 is arranged in a circular shape up and down, and it is connected to a chain driving mechanism. The chain driving mechanism includes gears located at both ends of the circulating chain 1201, and the gears are meshed with the circulating chain 1201. A driving motor is connected to one of the gears to drive the circulating movement of the circulating chain 1201 by the driving motor. A pair of straight tracks 1202 are also arranged on both sides above the horizontal direction of the circulating chain 1201. A number of connector jaw mechanisms 5 are fixedly arranged on the circulating chain 1201 at intervals through sliding components, and the sliding components are slidably connected to the pair of straight tracks 1202;

[0049] The sliding component includes a fixed platform 1203. A number of rollers 1204 are arranged at the positions where the fixed platform 1203 contacts the side walls of the straight tracks 1202, and a number of rollers 1204 are also arranged at the positions where the fixed platform 1203 contacts the straight tracks 1202 in the horizontal direction. The fixed platform 1203 is slidably connected to the pair of straight tracks 1202 through a number of rollers 1204.

[0050] Positioning mechanisms are also arranged below the circulating chain 1201 at the first welding station 2 and the second welding station 4. The positioning mechanisms include a positioning cylinder 1205, a positioning chuck 1206, and a pair of limit posts 1207 arranged on the positioning chuck 1206. A first limit groove 1208 is arranged on the lower surface of the fixed platform 1203 corresponding to the limit posts 1207. A concave groove 1209 matching the shape of the front end of the telescopic rod of the positioning cylinder 1205 is formed by inward depression on the lower surface of the positioning chuck 1206, and the telescopic rod of the positioning cylinder 1205 is located in the concave groove 1209.

[0051] A connecting plate 1210 is also provided on the outer side of the positioning chuck 1206. The telescopic rod of the positioning cylinder 1205 passes through the connecting plate 1210. A limiting disk 1211 is vertically provided on the outer wall of the connecting plate 1210. A second limiting groove 1212 is provided on the limiting disk 1211, and the second limiting groove 1212 faces the connector jaw mechanism 5. A pair of connecting columns 1213 are also provided on the connecting plate 1210, and the connecting columns 1213 are connected to the lower surfaces of the connecting plate 1210 and the positioning chuck 1206. When the connector jaw mechanism 5 moves to the first welding station 2 and the second welding station 4 on the circulating chain 1201, the positioning mechanism is activated, and the positioning cylinder 1205 pushes upward, driving the positioning chuck 1206 to move upward until the limiting column 1207 is inserted into the first limiting groove 1208 below the fixed table 1203 to play a positioning role. During the upward movement of the positioning chuck 1206, the connecting column 1213 drives the connecting plate 1210 to move upward, and at this time, the limiting disk 1211 is driven to move vertically upward until the second limiting groove 1212 of the limiting disk 1211 faces the position of the joint 1303 of the connector 13 clamped by the connector jaw mechanism 5. The welding head 901 moves downward and just moves onto the joint 1303 of the connector 13 in the second limiting groove 1212 for welding.

[0052] For the connector jaw mechanism 5, see Appendix Figure 10 to Appendix Figure 12 , which mainly includes a base 501, a jaw seat 502, and jaws 503. The base 501 is fixed on the fixed table 1203. A jaw seat 502 is rotatably connected to the base 501. One end of the jaw seat 502 is detachably connected to the jaws 503. The jaws 503 include a left jaw piece 504 and a right jaw piece 505. The inner sides of the left jaw piece 504 and the right jaw piece 505 facing each other match the outer shape of the connector 13 when it is vertically arranged, and the distance between the left jaw piece 504 and the right jaw piece 505 is the same as the thickness dimension of the connector 13. A ball screw 506 is connected through one of the jaw pieces of the left jaw piece 504 and the right jaw piece 505. The balls on the ball screw 506 face the other jaw piece, and the distance between the balls and the other jaw piece is slightly smaller than the thickness dimension of the connector 13. A nut 507 is connected to the ball screw 506. In this way, when the connector 13 is loaded, when the connector 13 is placed between the two jaw pieces by using a tool, the connector 13 can be clamped between the two jaw pieces, and due to the ball screw 506, it will not fall off easily.

[0053] A limit plate 508 is further provided on the jaw 503. The limit plate 508 is disposed on the lower surface between the left jaw piece 504 and the right jaw piece 505, and the length of the limit plate 508 is set to be less than the lengths of the left jaw piece 504 and the right jaw piece 505, that is, the length of the limit plate 508 is less than or equal to the height of the connector 13 excluding the joint 1303. In this way, after passing through the rotation station 3, the connector 13 is rotated 180 degrees, and the connecting plate 508 will not block the joint 1303 of the connector 13, and the joint 1303 remains exposed outside.

[0054] The left jaw piece 504 and the right jaw piece 505 are both provided with a first groove 509 from top to bottom. When using a tool to place the connector 13 between the two jaw pieces, the first groove 509 left is convenient for the insertion of the tool. For example, when using a connector loading gripper to load, the connector loading gripper can be directly inserted into the first groove 509. The connector loading gripper is opened in the first groove 509 to release the connector 13, and then the connector loading gripper leaves between the left jaw piece 504 and the right jaw piece 505. There will be no feeding error.

[0055] The connector jaw rotation mechanism 11 is disposed on one side of the base 501. It includes a rotating plate 1101, and the rotating plate 1101 is connected to a rotating cylinder 1102. One end of the jaw seat 502 far from the jaw 503 extends with a connecting rod 1104, which is rotatably connected to the base 501 through a bearing. The end of the connecting rod 1104 is provided with a second groove 1103 recessed inward from the middle, and the rotating plate 1101 is inserted into the second groove 1103. The rotating cylinder 1102 drives the rotating plate 1101 to rotate the jaw seat 502, and the jaw seat 502 drives the jaw 503 to rotate 180 degrees. For the connector jaw rotation mechanism 11, it can be realized to approach or depart from the end of the connecting rod 1104 through an electric slide rail or a cylinder, so as not to affect the movement of the entire connector jaw mechanism 5 on the circulating movement mechanism 12.

[0056] When the connector jaw mechanism 5 moves to the welding station (the first and the second), after the positioning mechanism is started, the second limit groove 1212 of the limit disk 1211 is directly opposite to the joint position of the upper connector of the connector jaw mechanism 5.

[0057] A set of wire moving jaws 6 includes three pairs of wire exchanging jaws 601. The three pairs of wire exchanging jaws 601 are all arranged on the wire exchanging jaw driving mechanism. The wire exchanging jaw driving mechanism includes a second electric slide rail 602. The second electric slide rail 602 is fixedly provided with three pairs of wire exchanging jaws 601 in sequence through an exchanging connecting plate 603. The wire exchanging jaw driving mechanism drives the three pairs of wire exchanging jaws 601 to move back and forth along the moving direction of the connector jaw mechanism 5. The three pairs of wire exchanging jaws 601 move from facing the first welding station 2, the rotating station 3, and the second welding station 4 in sequence to facing the connector loading station 1, the first welding station 2, and the rotating station 3 in sequence. After the three pairs of wire exchanging jaws 601 pick up the wires, they return to facing the first welding station 2, the rotating station 3, and the second welding station 4 in sequence. If the three pairs of wire exchanging jaws 601 are A, B, and C respectively, and the initial positions of A, B, and C face the first welding station 2, the rotating station 3, and the second welding station 4 respectively. Driven by the wire exchanging jaw driving mechanism, A, B, and C face the connector loading station 1, the first welding station 2, and the rotating station 3 respectively, that is, A moves from facing the first welding station 2 to facing the connector loading station 1. After picking up two wires, driven by the wire exchanging jaw driving mechanism, it moves to face the first welding station 2. B and C are the same by analogy.

[0058] A pair of wire fixing jaws 7 are arranged near the first welding station 2. See the appendix Figure 3 ., and the wire fixing jaws 7 face the connector jaw mechanism 5 at the first welding station 2. One of the wire fixing jaws 7 is immovable, and the other wire fixing jaw 7 is movable. The pair of wire fixing jaws 7 pick up two wires (assumed to be a black wire and a red wire, the black wire is welded first, and the red wire is welded later). The left wire fixing jaw 7 picks up the black wire, and the right wire fixing jaw 7 picks up the red wire. The left wire fixing jaw 7 faces the position of the jaw 503 of the connector jaw mechanism 5. And a mechanism for driving the wire fixing jaw 7 to move upward and forward is arranged on the left wire fixing jaw 7. See the appendix Figure 3 ., in this embodiment, it is driven by a cylinder. The wire fixing jaw 7 is connected to the telescopic end of the upward cylinder. The upward cylinder is arranged on the forward cylinder. The forward cylinder and the upward cylinder drive the wire fixing jaw 7 to move forward and upward, and move the black wire towards the joint 1303 of the connector 13 picked up by the connector jaw mechanism 5 until it is close to the joint. The other wire fixing jaw 7 is a fixed jaw, and it only needs to hold the red wire.

[0059] A welding assembly 9 is provided above the first welding station 2 and the second welding station 4. The welding assembly 9 includes a welding head 901. A power source is connected to the welding head 901 to heat the welding head 901 using the power source. A solder wire 902 is also connected to the welding head 901. A solder head driving mechanism is further provided on the welding head 901 to drive the solder head to move downward to be directly opposite the joint 1303 of the connector 13 of the connector gripper mechanism 5. The solder head driving mechanism is a vertically arranged electric slide rail (the fourth electric slide rail 905), and the fourth electric slide rail 905 drives the welding head 901 fixed on the platform to move up and down. Additionally, the platform can be arranged on a transverse electric slide rail (the fifth electric slide rail 906) to further achieve the forward and backward movement of the welding head 901.

[0060] To facilitate the adjustment of the welding angle, the entire welding head 901 is arranged on a welding head angle adjustment mechanism. The welding head angle adjustment mechanism includes an arc-shaped groove guide rail 903. The welding head 901 is slidably connected to the arc-shaped groove guide rail 903 through a fixing member 904 and is fastened by screws. See the appendix Figure 5 。

[0061] A wire fixing gripper 7 is provided on the rotation station 3 for gripping the un-welded red wire. The wire fixing gripper 7 is located on one side of the rotation station 3. For the two wires reaching the rotation station 3, the black wire has been welded to the connector 13, and the red wire is still gripped by the wire fixing gripper 7. A connector gripper rotation mechanism 11 is provided on one side of the rotation station 3. The connector gripper rotation mechanism 11 is used to rotate the connector gripper mechanism 5 by 180 degrees and rotate the welded connector 13 by 180 degrees, so that the un-welded connector joint 1303 is rotated to the upper side, facilitating the secondary welding at the second welding station 4.

[0062] A pair of wire feeding grippers 8 is provided at the connector feeding station 1. The pair of wire feeding grippers 8 is connected to a wire feeding gripper driving mechanism. The wire feeding gripper driving mechanism drives the pair of wire feeding grippers 8 to grip a pair of wires (black and red) and move them closer to the connector feeding station 1. See the appendix Figure 2, the wire loading gripper driving mechanism includes a first electric slide rail 801. A loading gripper cylinder 802 is fixed on the first electric slide rail 801 through a loading connecting plate 803. The loading gripper cylinder 802 is horizontally arranged, and its telescopic end is connected with a pair of wire loading grippers 8. The electric slide rail 801 drives the loading connecting plate 803 to move left and right. The pair of wire loading grippers 8 pick up two wires from the wire raw material position on one side and then move towards the connector loading station 1 under the action of the first electric slide rail 801. After moving to the position of the connector loading station 1, under the action of the loading gripper cylinder 802, it approaches the connector loading station 1, further approaching the connector loading station 1 to make room for the wire replacement gripper 601, facilitating the wire replacement gripper 601 to move to the connector loading station 1 to grab the loaded wires.

[0063] On one side of the second welding station 4, there is also a wire moving welding gripper 10. The wire moving welding gripper 10 is connected with a wire moving welding gripper driving mechanism, which is used to pick up the un-welded red wire and move it close to the connector gripper mechanism 5 at the second welding station 4. See the appendix Figure 6 , the wire moving welding gripper 10 can move up and down, left and right, and back and forth. The wire moving welding gripper driving mechanism on it includes a third electric slide rail 1001, a welding gripper driving cylinder one 1002, and a welding gripper driving cylinder two 1003. The welding gripper driving cylinder one 1002 is arranged on the third electric slide rail 1001, and the welding gripper driving cylinder two 1003 is arranged at the telescopic end of the welding gripper driving cylinder one 1002. The wire moving welding gripper 10 is arranged at the telescopic end of the welding gripper driving cylinder two 1003. The third electric slide rail 1001 is horizontally arranged, which drives the welding gripper driving cylinder one 1002 to move horizontally left and right. The gripper driving cylinder one 1002 is perpendicular to the third electric slide rail 1001, and its telescopic movement drives the welding gripper driving cylinder two 1003 to move back and forth. The welding gripper driving cylinder two 1003 is vertically arranged, and its telescopic end is downward, driving the wire moving welding gripper 10 to move up and down. When the wire replacement gripper 601 picks up the wire and moves to the second welding station 4, the wire moving welding gripper 10 picks up the red wire on the wire replacement gripper 601. After successfully picking up the red wire, it releases the wire replacement gripper 601, and adjusts the wire moving welding gripper 10 up and down, left and right, and back and forth through the wire moving welding gripper driving mechanism until it contacts the joint 1303 on the connector 13, and then starts the welding assembly 9 for welding.

[0064] The grippers such as the above-mentioned wire replacement gripper 601, wire fixing gripper 7, wire loading gripper 8, and wire moving welding gripper 10 are all driven by gripper cylinders to pick up and release the grippers.

[0065] Working principle:

[0066] First, load the connector 13 onto the connector gripper mechanism 5 at the connector loading station 1. At the same time, use the wire loading gripper 8 to grab two wires to be welded from another position (gripper), move them to the connector loading station 1 using the wire loading gripper 8, and approach the connector loading station 1. Then, use the wire transfer gripper drive mechanism to drive the three pairs of wire transfer grippers 601 to move from being aligned with the first welding station 2, rotation station 3, and second welding station 4 in sequence to being aligned with the connector loading station 1, first welding station 2, and rotation station 3 in sequence. One of the three pairs of wire transfer grippers 601 moves to the connector loading station 1, grabs the two wires clamped by the wire loading gripper 8 at the connector loading station 1, and releases the wire loading gripper 8 at the connector loading station 1. The wire transfer gripper drive mechanism drives the three pairs of wire transfer grippers 601 to return to being aligned with the first welding station 2, rotation station 3, and second welding station 4 in sequence. At this time, the two wires clamped from the connector loading station 1 are located at the first welding station 2. A pair of wire fixing grippers 7 at the first welding station 2 clamp the two wires on the wire transfer gripper 601. One of the wire fixing grippers 7 near the first welding station 2 moves upward and forward towards the first welding station 2, and the welding assembly 9 is started to perform the welding operation of one joint 1303 between the wire and the connector 13. At this time, the other wire fixing gripper 7 holds the other wire still. After welding is completed, the wire transfer gripper drive mechanism drives the three pairs of wire transfer grippers to grab wires at the previous station and move to that station to continue welding.

[0067] The two wires at the first welding station 2 are moved to the rotation station 3 under the grasping of the wire transfer gripper 601. There is only one wire fixing gripper 7 at the rotation station 3, which only clamps the wire that has not been welded (red wire). The wire that has been welded is fixed on the connector 13. After the wire transfer gripper 601 at the rotation station 3 is released, the connector gripper rotation mechanism rotates the connector gripper mechanism 5 by 180 degrees, and the work at the rotation station 3 is completed.

[0068] The wire transfer gripper 601 grabs the wire at the rotation station 3 (at this time, only one red wire needs to be clamped, and the black wire moves with the connector gripper mechanism 5). The wire fixing gripper 7 at the rotation station 3 releases the wire. The wire transfer gripper 601 drives the wire and the connector gripper mechanism 5 at the current station to move to the second welding station 4 together. The wire moving welding gripper 10 at the second welding station 4 grabs the un-welded red wire and moves it towards the joint 1303 on the connector 13 on the connector gripper mechanism 5 at the second welding station 4, and starts the welding assembly 9 for welding. After welding is completed, the welding operation of the entire connecting wire is completed.

[0069] The connector jaw mechanism 5 continues to move driven by the cyclic movement mechanism 11 until it cyclically moves to the connector loading station 1 to continue the loading and welding operation.

[0070] Through different handover operations, the grasping and movement of the wire between different stations are realized, and the grasping and movement of the wire and the connector jaw mechanism move simultaneously to achieve unified operation; in addition, the rotation station is used to realize the angular rotation of the connector 13 to facilitate the welding operation of another wire.

[0071] The above embodiments are only for explaining the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A continuous welding device for the production of connecting wires, characterized in that, it includes a connector feeding station (1), a first welding station (2), a rotating station (3), a second welding station (4), and a set of wire moving jaws (6) arranged in sequence; connector jaw mechanisms (5) are provided at the connector feeding station (1), the first welding station (2), the rotating station (3), and the second welding station (4), and the connector jaw mechanisms (5) are arranged on a circulating moving mechanism (12), and the circulating moving mechanism (12) drives the connector jaw mechanisms (5) to circulate through the connector feeding station (1), the first welding station (2), the rotating station (3), and the second welding station (4); A set of wire moving jaws (6) includes three pairs of wire changing jaws (601), and the three pairs of wire changing jaws (601) are all arranged on a wire changing jaw driving mechanism. The wire changing jaw driving mechanism drives the three pairs of wire changing jaws (601) to move back and forth along the moving direction of the connector jaw mechanism (5). The three pairs of wire changing jaws (601) move from being directly opposite the first welding station (2), the rotating station (3), and the second welding station (4) in sequence to being directly opposite the connector feeding station (1), the first welding station (2), and the rotating station (3) in sequence. After the three pairs of wire changing jaws (601) clamp the wires, they return to being directly opposite the first welding station (2), the rotating station (3), and the second welding station (4) in sequence; A pair of wire fixing jaws (7) are arranged near the first welding station (2) for clamping a pair of wires to be welded. A wire fixing jaw (7) is arranged near the rotating station (3) for clamping the wire that has not been welded yet. A pair of wire feeding jaws (8) are arranged at the connector feeding station (1). The pair of wire feeding jaws (8) are connected to a wire feeding jaw driving mechanism, and the wire feeding jaw driving mechanism drives the pair of wire feeding jaws (8) to clamp a pair of wires and move them close to the connector feeding station (1); Welding assemblies (9) are arranged above the first welding station (2) and the second welding station (4), and a wire moving welding jaw (10) is also arranged on one side of the second welding station (4). The wire moving welding jaw (10) is connected to a wire moving welding jaw driving mechanism and is used for clamping the wire that has not been welded yet and moving it close to the position of the connector jaw mechanism (5) at the second welding station (4); A connector jaw rotating mechanism (11) is arranged on one side of the rotating station (3) to control the jaws (503) of the connector jaw mechanism (5) to rotate 180 degrees.

2. The continuous welding device for the production of connecting wires according to claim 1, characterized in that, The cyclic moving mechanism (12) includes a cyclic chain (1201). The cyclic chain (1201) is arranged in a ring shape up and down, and is connected to a chain driving mechanism. A pair of straight tracks (1202) are further arranged on both upper sides of the cyclic chain (1201) in the horizontal direction. A number of the connector jaw mechanisms (5) are fixedly arranged on the cyclic chain (1201) at intervals through sliding components, and the sliding components are slidably connected to the pair of straight tracks (1202). The sliding component includes a fixed platform (1203). A number of rollers (1204) are arranged at positions where the fixed platform (1203) contacts the side walls of the straight tracks (1202), and a number of rollers (1204) are also arranged at positions where the fixed platform (1203) contacts the straight tracks (1202) in the horizontal direction. The fixed platform (1203) is slidably connected to the pair of straight tracks (1202) through the number of rollers (1204).

3. The continuous welding device for producing connecting wires according to claim 2, characterized in that, A positioning mechanism is further arranged below the cyclic chain (1201) at the first welding station (2) and the second welding station (4). The positioning mechanism includes a positioning cylinder (1205), a positioning chuck (1206), and a pair of limit posts (1207) arranged on the positioning chuck (1206). A first limit groove (1208) is arranged on the lower surface of the fixed platform (1203) at a position corresponding to the limit posts (1207). A concave groove (1209) matching the shape of the front end of the telescopic rod of the positioning cylinder (1205) is formed by inward depression on the lower surface of the positioning chuck (1206), and the telescopic rod of the positioning cylinder (1205) is located in the concave groove (1209).

4. The continuous welding device for producing connecting wires according to claim 3, characterized in that, A connecting plate (1210) is further arranged outside the positioning chuck (1206). The telescopic rod of the positioning cylinder (1205) passes through the connecting plate (1210). A limit disc (1211) is vertically arranged on the outer wall of the connecting plate (1210). A second limit groove (1212) is arranged on the limit disc (1211), and the second limit groove (1212) faces the connector jaw mechanism (5). A pair of connecting columns (1213) are further arranged on the connecting plate (1210), and the connecting columns (1213) are connected to the lower surfaces of the connecting plate (1210) and the positioning chuck (1206).

5. The continuous welding device for producing connecting wires according to claim 1, characterized in that, For a pair of the wire fixing jaws (7) at the first welding station (2), one of the wire fixing jaws (7) is close to the connector jaw mechanism (5) at the first welding station (2), and a cylinder for driving it to move upward and forward is connected to the wire fixing jaw (7). The cylinder drives the wire fixing jaw (7) and the wire thereon to approach the connector (13) of the connector jaw mechanism (5).

6. The continuous welding device for the production of connecting wires according to claim 1, characterized in that, the wire loading jaw driving mechanism includes a first electric slide rail (801), on which a loading jaw cylinder (802) is fixed through a loading connecting plate (803). The loading jaw cylinder (802) is horizontally arranged, and a pair of wire loading jaws (8) are vertically connected to its telescopic end.

7. The continuous welding device for the production of connecting wires according to claim 1, characterized in that, the wire changing hand jaw driving mechanism includes a second electric slide rail (602), and three pairs of wire changing hand jaws (601) are sequentially fixed on the second electric slide rail (602) through a changing connecting plate (603).

8. The continuous welding device for the production of connecting wires according to claim 2, characterized in that, the connector jaw mechanism (5) includes a base (501), a jaw seat (502), and jaws (503). The base (501) is fixed on the fixed table (1203). A jaw seat (502) is rotatably connected to the base (501). One end of the jaw seat (502) is detachably connected with jaws (503). The jaws (503) include a left jaw piece (504) and a right jaw piece (505). The inner sides of the left jaw piece (504) and the right jaw piece (505) facing each other match the outer shape of the connector (13) when it is vertically arranged, and the distance between the left jaw piece (504) and the right jaw piece (505) is the same as the outer diameter size of the connector (13) when it is vertical; a ball screw (506) is connected through one of the left jaw piece (504) and the right jaw piece (505). The balls on the ball screw (506) face the other jaw piece, and the distance between the balls and the other jaw piece is slightly smaller than the thickness size of the connector (13). A nut (507) is connected to the ball screw (506).

9. The continuous welding device for the production of connecting wires according to claim 8, characterized in that, the connector jaw rotating mechanism (11) is arranged on one side of the rotating station (3). It includes a rotating plate (1101). The rotating plate (1101) is connected to a rotating cylinder (1102). One end of the jaw seat (502) far from the jaws (503) extends with a connecting rod (1104), which is rotatably connected to the base (501) through a bearing. The end of the connecting rod (1104) is provided with a second groove (1103) recessed inward from the middle, and the rotating plate is inserted into the second groove (1103).

10. The continuous welding device for the production of connecting wires according to any one of claims 1 to 9, characterized in that, the welding assembly (9) includes a welding head (901). A solder wire (902) is connected to the welding head (901). A solder head driving mechanism is further arranged on the welding head (901) to drive the solder head to move downward to be directly opposite to the connector (13) of the connector jaw mechanism (5).

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