Wire harness terminal welding clamp and welding equipment

Abstract

The invention discloses a wire harness terminal welding clamp and welding equipment, and relates to the technical field of wire harness terminal machining, the wire harness terminal welding clamp comprises a base and two sets of clamping jaw structures arranged on the base, a machining station is arranged between the two sets of clamping jaw structures, and the machining station is used for placing a wire harness and a terminal; each clamping jaw structure comprises a first linear driving part, a first transmission assembly, a second linear driving part, a second transmission assembly and a first clamping jaw, the first linear driving parts and the second linear driving parts are arranged in a stacked mode, and the first linear driving parts and the second linear driving parts in the two clamping jaw structures are arranged on the same side. The X-axis is distributed along the X-axis direction. According to the technical scheme, the problem that an existing welding device is not compact enough in structure can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness terminal processing, in particular to a wire harness terminal welding fixture and welding equipment. Background Art

[0002] Ultrasonic welding is a welding technology that uses high-frequency mechanical vibration energy to generate heat between the contact surfaces of materials to join materials together.

[0003] The existing connection between the wire harness and the terminal is welded by an ultrasonic welding device. During the welding process, the wire harness and the terminal are clamped together by a clamp. The clamp includes multiple cylinder drives and a first clamp. The multiple cylinders can drive the first clamp to move, and the multiple cylinders are distributed on the side and bottom of the clamp. This distribution method makes the structure of the clamp larger, which leads to the problem that the existing wire harness terminal welding device has a structure that is not compact enough. Summary of the invention

[0004] The main purpose of the present invention is to provide a wiring harness terminal welding device, aiming to solve the problem that the existing welding device has a structure that is not compact enough.

[0005] To achieve the above object, the wiring harness terminal welding device proposed by the present invention comprises: A base, two groups of clamping jaw structures arranged on the base, a processing position is arranged between the two groups of the clamping jaw structures, and the processing position is used for placing the wiring harness and the terminal; The clamping jaw structure comprises a first linear driving member, a first transmission assembly, a second linear driving member, a second transmission assembly and a first clamping jaw, wherein the second linear driving member and the second transmission assembly are mounted on the first transmission assembly, and the first clamping jaw is mounted on the second transmission assembly, and the first linear driving member can drive the first transmission assembly to move the second linear driving member, the second transmission assembly and the first clamping jaw along the X-axis direction, and the second linear driving member can drive the second transmission assembly to move the first clamping jaw along the Z-axis direction; The first linear drive member and the second linear drive member are stacked and arranged, and the first linear drive member and the second linear drive member in the two groups of the clamping jaw structures are arranged on the same side and distributed along the X-axis direction.

[0006] In one embodiment, the first transmission assembly includes a first transmission part, a second transmission part and a first driven part, the first transmission part is connected to the first driven part through the second transmission part, the first linear driving member can drive the first transmission part to move along the Y-axis direction, and when the first transmission part moves along the Y-axis direction, the first driven part can be driven to move along the Z-axis direction through the second transmission part; The second linear driving member and the second transmission assembly are installed on the first driven part.

[0007] In one embodiment, the first transmission part is configured as a rod-shaped structure, a first guide rail is provided on the first transmission part, and the first guide rail is inclined toward the Z-axis direction; The second transmission part is slidably disposed on the first guide rail, and when the second transmission part moves along the first guide rail, the second transmission part can drive the first driven part to move along the Z-axis direction; The second transmission part is rotatable relative to one of the first driven part or the first guide rail.

[0008] In one embodiment, the base is provided with a guide rod, the guide rod is extended along the Z-axis direction, the guide rod is plugged into the first driven part, and a first groove for reducing friction is provided on the outer side of the guide rod; And / or, the first guide rail is configured as a hole-shaped structure, and the second transmission part is configured as a round shaft structure; The second transmission part passes through the first guide rail, and both ends of the second transmission part are connected to the first driven part.

[0009] In one embodiment, the second transmission assembly includes a third transmission part, a fourth transmission part, and a second driven part, the third transmission part is connected to the second driven part through the fourth transmission part, the second linear driving member can drive the third transmission part to move along the Y-axis direction, and when the third transmission part moves along the Y-axis direction, the second driven part can be driven to move along the X-axis direction through the fourth transmission part; The third transmission part and the second driven part are both installed on the first driven part and can move relative to the first driven part, and the first clamping claw is installed on the second driven part.

[0010] In one embodiment, the third transmission part is configured as a rod-shaped structure, and a second guide rail is provided on the third transmission part; The third transmission part is slidably disposed on the second guide rail, and the second guide rail includes an arc segment and a straight segment extending along the Y-axis direction. When the third transmission part moves along the arc segment, it can drive the second driven part to move along the X-axis direction.

[0011] In one embodiment, the second transmission assembly further comprises a fixed seat, the fixed seat is detachably connected to the first driven part, the second linear driving member is mounted on the fixed seat, the fixed seat is provided with a first guide groove arranged along the Y-axis direction and a second guide groove arranged along the X-axis direction, the third transmission part is slidably arranged in the first guide groove, and the second driven part is slidably arranged in the second guide groove; And / or, the second guide rail is configured as a hole-shaped structure, and the fourth transmission part is configured as a round shaft structure; And / or, a second groove for reducing friction is provided on the outer side of the second driven part; And / or, the second transmission assembly further comprises an elastic telescopic member and a force measuring member, wherein the elastic telescopic member and the force measuring member are mounted on the fixed seat, and the elastic telescopic member can push the second driven part so that the second driven part has a tendency to move toward the processing position.

[0012] In one embodiment, the wiring harness terminal welding fixture further comprises a terminal limiting seat, the terminal limiting seat is detachably mounted on the base, and the terminal limiting seat is used for placing the terminal; The wiring harness terminal fixture further comprises a positioning assembly, which is mounted on the second transmission assembly and is used for positioning the wiring harness.

[0013] In one embodiment, the wire harness terminal fixture further comprises a wire harness clamping assembly, wherein the wire harness clamping assembly is mounted on a base and is used to clamp a wire harness.

[0014] The present invention also provides a welding device, comprising a wiring harness terminal welding fixture and a welding head capable of moving up and down, wherein the welding head is arranged above the wiring harness terminal welding fixture, and the wiring harness terminal welding fixture is any of the above-mentioned wiring harness terminal welding fixtures.

[0015] The technical solution of the present invention adopts the first linear drive member and the second linear drive member to be stacked and arranged. Such arrangement enables the clamping structure to utilize the space in the vertical direction, and the first linear drive member and the second linear drive member in the two groups of the clamping structures are arranged on the same side and distributed along the X-axis direction. Furthermore, the two first linear drives and the two second linear drives can be arranged on the same side in a 2*2 manner. Specifically, the 2*2 stacked arrangement can maximize the utilization of the vertical space without significantly increasing the width or length of the wiring harness terminal welding fixture. Since all cylinders (first linear drive member, second linear drive member) are concentrated on the same side, this arrangement can also reduce the length of connecting pipes and connecting lines, further improving the overall compactness. Compared with the structure in the prior art in which two cylinders are provided on one side and two cylinders are provided on the bottom, it is more compact, thereby solving the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an embodiment of a wiring harness terminal welding fixture provided by the present invention; Figure 2 for Figure 1 A structural schematic diagram of the wiring harness terminal welding fixture from another perspective; Figure 3 A schematic structural diagram of an embodiment of a mounting seat, a terminal limiting seat, and a driving cylinder member in a wiring harness terminal welding fixture provided by the present invention; Figure 4 for Figure 1 Structural schematic diagram of the middle clamping jaw structure; Figure 5 for Figure 4 Explosion diagram of the middle jaw structure; Figure 6 for Figure 5 A schematic diagram of the structure of the first transmission part, the second transmission part, the first guide rail, and the adapter; Figure 7 for Figure 6 A schematic diagram of the structure of the third transmission part and the second guide rail; Figure 8 for Figure 1 Schematic diagram of the structure of the positioning component.

[0018] Description of Figure Numbers: 100, base; 110, processing position; 120, guide rod; 130, first groove; 140, mounting seat; 150, driving cylinder; 200, clamping jaw structure; 210, first linear driving member; 220, first transmission assembly; 221, first transmission part; 222, second transmission part; 223, first driven part; 223a, installation space; 223b, first cavity wall; 223c, limit block; 224, first guide rail; 230, second linear driving member; 240, second transmission assembly; 241, third transmission part; 242, fourth transmission part; 243, second driven part; 245, second guide rail; 245a, arc segment; 245b, straight segment; 246, fixed seat; 247, first guide groove; 248, second guide groove; 249, second groove; 241a, elastic telescopic member; 241b, force measuring member; 250, first clamping jaw; 260, adapter; 300, terminal limit seat; 310, placement slot; 400, wire harness clamping assembly; 410, first connecting seat; 420, second connecting seat; 430, parallel cylinder; 440, second clamping claw; 500, positioning assembly; 510, pressing plate; 520, first connecting rod; 530, second connecting rod; 540, mounting frame.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Ultrasonic welding is a welding technology that uses high-frequency mechanical vibration energy to generate heat between the contact surfaces of materials to join materials together.

[0024] The existing connection between the wire harness and the terminal is welded by an ultrasonic welding device. During the welding process, the wire harness and the terminal are clamped together by a clamp. The clamp includes multiple cylinder drives and a first clamp. The multiple cylinders can drive the first clamp to move, and the multiple cylinders are distributed on the side and bottom of the clamp. This distribution method makes the structure of the clamp larger, which leads to the problem that the existing wire harness terminal welding device has a structure that is not compact enough.

[0025] The invention provides a wiring harness terminal welding fixture.

[0026] See also Figure 1 , Figure 2 In one embodiment of the present invention, the wiring harness terminal welding fixture comprises: A base 100 and two groups of clamp structures 200 arranged on the base 100, a processing position 110 is provided between the two groups of clamp structures 200, and the processing position 110 is used for placing the wire harness and the terminal. After the wire harness and the terminal are placed on the processing position 110, the two groups of clamp structures 200 can position the terminal and limit the opposite sides of the wire harness connection end. It should be noted that the wire harness connection end is placed above the terminal. At this time, the ultrasonic welding head in the welding device moves downward and abuts against the wire harness connection end. At this time, the bottom of the wire harness connection end is limited by the terminal, and the opposite sides of the wire harness connection end are limited by the two clamp structures 200. The top of the wire harness connection end is pushed by the ultrasonic welding head. At this time, the ultrasonic welding head welds the wire harness connection end and the terminal together.

[0027] Furthermore, the clamping structure 200 can adopt the following structure, wherein the clamping structure 200 includes a first linear drive member 210, a first transmission assembly 220, a second linear drive member 230, a second transmission assembly 240 and a first clamping jaw 250, wherein the second linear drive member 230 and the second transmission assembly 240 are installed on the first transmission assembly 220, and the first clamping jaw 250 is installed on the second transmission assembly 240, and the first linear drive member 210 can drive the first transmission assembly 220 to move the second linear drive member 230, the second transmission assembly 240 and the first clamping jaw 250 along the X-axis direction, and the second linear drive member 230 can drive the second transmission assembly 240 to move the first clamping jaw 250 along the Z-axis direction. It should be noted that the X-axis, Y-axis and Z-axis described in this application are perpendicular to each other in space. Further, when the first clamp 250 moves along the Z-axis direction, the first clamp 250 can clamp or release the terminal, and when the first clamp 250 moves along the X-axis direction, the first clamp 250 can limit one side of the connection end of the wiring harness. Specifically, the first clamps 250 in the two groups of clamp structures 200 can move synchronously, and the two first clamps 250 can rise and fall synchronously and move closer to or away from each other. Further, in some embodiments, the first linear drive 210 and the second linear drive 230 are both configured as cylinder structures. In some embodiments, the first linear drive 210 and the second linear drive 230 can also be configured as hydraulic cylinder structures, wherein when the first linear drive 210 and the second linear drive 230 are configured as cylinder structures, the first linear drive 210 and the second linear drive 230 have a faster response speed than the hydraulic cylinder.

[0028] Further, the first linear drive member 210 and the second linear drive member 230 are stacked and arranged, and such arrangement enables the clamping structure 200 to utilize the vertical space, and the first linear drive member 210 and the second linear drive member 230 in the two groups of the clamping structure 200 are arranged on the same side and distributed along the X-axis direction. Further, the two first linear drives 210 and the two second linear drives 230 can be arranged on the same side in a 2*2 manner. Specifically, the 2*2 stacking arrangement can maximize the use of the vertical space without significantly increasing the width or length of the wiring harness terminal welding fixture. Since all cylinders (the first linear drive member 210 and the second linear drive member 230) are concentrated on the same side, this arrangement can also reduce the length of the connecting pipe and the connecting line, further improving the overall compactness, which is more compact than the structure in the prior art in which two cylinders are arranged on one side and two cylinders are arranged on the bottom, thereby solving the technical problems existing in the prior art. In addition, because all cylinders are in a relatively close position, maintenance and overhaul can also be simplified during maintenance and overhaul.

[0029] In one embodiment, reference Figure 1 , 4 , Figure 5 In order to enable the first linear driving member 210 and the second linear driving member 230 to be concentrated on the same side, the first transmission assembly 220 can adopt the following structure, wherein the first transmission assembly 220 includes a first transmission part 221, a second transmission part 222 and a first driven part 223, wherein the first transmission part 221 is connected to the first driven part 223 via the second transmission part 222, and the first linear driving member 210 can drive the first transmission part 221 to move along the Y-axis direction, and when the first transmission part 221 moves along the Y-axis direction, the first driven part 223 can be driven to move along the Z-axis direction via the second transmission part 222, that is, The second transmission part 222 can change part of the force transmitted by the first transmission part 221 along the Y-axis direction to be transmitted along the Z-axis direction, thereby acting on the first driven part 223, so that the first driven part 223 moves along the Z-axis direction; the second linear drive member 230 and the second transmission assembly 240 are installed on the first driven part 223. Further, when the first driven part 223 moves along the Z-axis direction, since the second linear drive member 230 and the second transmission assembly 240 are both installed on the first driven part 223, the second linear drive member 230 and the second transmission assembly 240 can also follow the first driven part 223 to move along the Z-axis direction.

[0030] In one embodiment, reference Figure 5 , Figure 6 , the first transmission part 221 is configured as a rod-shaped structure. Further, in the present embodiment, the rod-shaped structure is configured as a rectangular rod-shaped structure, that is, the end face of the rod-shaped structure is rectangular. In some embodiments, the rod-shaped structure can be configured as a circular rod-shaped structure. A first guide rail 224 is provided on the first transmission part 221, and the first guide rail 224 is inclined toward the Z-axis direction. Further, in the present embodiment, the first guide rail 224 is configured as a hole-shaped structure. In some embodiments, the guide rail can be configured as a raised long strip structure, or a recessed long strip structure.

[0031] Further, refer to Figure 6The second transmission part 222 is slidably arranged on the first guide rail 224. When the second transmission part 222 moves along the first guide rail 224, the second transmission part 222 can drive the first driven part 223 to move along the Z-axis direction; further, when the first guide rail 224 is configured as a hole-shaped structure, the second transmission part 222 is configured as a round shaft structure; the second transmission part 222 passes through the first guide rail 224, and both ends of the second transmission part 222 are connected to the first driven part 223. Further, the second transmission part 222 can rotate relative to one of the first driven part 223 or the first guide rail 224. It should be noted that when the second transmission part 222 is configured as a round shaft structure and both ends are connected to the first driven part 223, the second transmission part 222 has good integrity at this time, and the second transmission part 222 can better realize synchronous transmission during the transmission process, and the second transmission part 222 can also have a good service life. Compared with the segmented second transmission part 222, the second transmission part 222 with a round shaft structure is more convenient to assemble with the first guide rail 224 with a hole-shaped structure. It only needs to insert the second transmission part 222 into the first guide rail 224. Furthermore, in order to facilitate the assembly of the second transmission part 222 with the first guide rail 224 and the first driven part 223, the outer side of the first driven part 223 is recessed to form an installation space 223a, and the installation space 223a is provided with a first cavity wall 223b, wherein the first cavity wall 223b is connected to one end of the second transmission part 222, and can One side of the first transmission part 221 of the rectangular rod-shaped structure is limited, and a limit block 223c of a T-shaped structure is detachably connected in the installation space 223a. Further, the limit block 223c is connected to the first driven part 223 by screw locking, that is, the limit block 223c is fixed to the first driven part 223. At this time, the limit block 223c is connected to the other end of the second transmission part 222, and the other side of the first transmission part 221 of the rectangular rod-shaped structure can be positioned. In this way, under the action of the limit block 223c and the installation space 223a, on the one hand, it can facilitate the assembly of the first guide rail 224, the second transmission part 222, and the first driven part 223, and it can also reduce the contact area between the first transmission part 221 and the first driven part 223 when it is active. On the other hand, it can also make the structure of the first transmission assembly 220 more compact, thereby making the structure of the wiring harness terminal welding fixture more compact.

[0032] It should be noted that the limiting surface formed by the limiting block 223c of the T-shaped structure is smaller than the limiting surface formed by the first cavity wall 223b, that is, when the first transmission part 221 moves along the Y-axis direction, the contact surface with the limiting block 223c is smaller, so that the friction force generated is also smaller, so that the first driven part 223 can be more stable when moving along the Z-axis direction, and the first clamping jaw 250 can be more stable when moving along the Z-axis direction. That is to say, while ensuring that the structure of the wiring harness terminal welding fixture is more compact, it can also make the wiring harness terminal welding fixture more stable when in use.

[0033] In one embodiment, further, in order to make the first driven part 223 move more smoothly along the Z-axis direction, refer to Figure 5 The base 100 is provided with a guide rod 120, which is extended along the Z-axis direction and plugged into the first driven part 223. The guide rod 120 can be configured as a rectangular rod-shaped structure, under the action of the rectangular rod-shaped structure, the first driven part 223 can be limited in a circumferential direction. It can be understood that the first driven part 223 is provided with a rectangular hole structure or a cavity structure corresponding to the guide rod 120. Further, the guide rod 120, the limit block 223c, and the second transmission part 222 are arranged along the X-axis direction. In this way, the force of the first driven part 223 on the second transmission part 222 and the guide rod 120 can be distributed in one direction, which makes the first driven part 223 more stable when moving along the Z-axis direction, thereby making the first clamping jaw 250 more stable when moving along the Z-axis direction.

[0034] In one embodiment, reference Figure 1 , Figure 4 , Figure 5The second transmission assembly 240 includes a third transmission part 241, a fourth transmission part 242, and a second driven part 243. The third transmission part 241 is connected to the second driven part 243 through the fourth transmission part 242. The second linear drive member 230 can drive the third transmission part 241 to move along the Y-axis direction. When the third transmission part 241 moves along the Y-axis direction, the second driven part 243 can be driven to move along the X-axis direction through the fourth transmission part 242. That is to say, the force of the third transmission part 241 driven along the Y-axis direction can be partially converted into the X-axis direction through the fourth transmission part 242, so as to act on the second driven part 243, so that the second driven part 243 moves along the X-axis direction. further, the third transmission part 241 and the second driven part 243 are both installed on the first driven part 223, and when the first driven part 223 moves along the Z-axis direction, it can drive the third transmission part 241 and the second driven part 243 to move along the Z-axis direction. Further, the third transmission part 241 can move along the Y-axis direction relative to the first driven part 223, and the second driven part 243 can move along the X-axis direction relative to the first driven part 223. The first clamp 250 is installed on the second driven part 243. In this way, under the action of the fourth transmission part 242, the second linear drive member 230 and the first linear drive member 210 can be arranged on the same side, which can make the structure of the wiring harness terminal welding fixture more compact.

[0035] In one embodiment, reference Figure 5 Further, the third transmission part 241 is configured as a rod-shaped structure. Further, in the present embodiment, the rod-shaped structure is configured as a rectangular rod-shaped structure, that is, the end face of the rod-shaped structure is rectangular. In some embodiments, the rod-shaped structure can be configured as a circular rod-shaped structure. A second guide rail 245 is provided on the third transmission part 241. Further, in the present embodiment, the first guide rail 224 is configured as a hole-shaped structure. In some embodiments, the guide rail can be configured as a raised strip-shaped structure or a recessed strip-shaped structure. The third transmission part 241 is slidably disposed on the second guide rail 245. The second guide rail 245 includes an arc segment 245a and a straight segment 245b extending along the Y-axis direction (see Figure 7), when the third transmission part 241 moves along the arc segment 245a, it can drive the second driven part 243 to move along the X-axis direction. It should be noted that when the first clamp 250 limits one side of the wiring harness connection end at the preset position, the fourth transmission part 242 is located in the straight line segment 245b. In this way, when the welding head presses down the wiring harness connection end, the two sides of the wiring harness connection end will give the first clamp 250 a resistance force, so that the two first clamps 250 are subjected to a force along the X-axis direction, and the direction of the resistance force is away from the processing position 110. At this time, the resistance force is transmitted to the second driven part 243 through the first clamp 250, and then transmitted to the fourth transmission part 242 through the second driven part 243, and finally the fourth transmission part 242 acts on the third transmission part 241. Since the fourth transmission part 242 is located in the straight line segment 245b at this time, 5b, that is to say, the resistance force along the X-axis direction acts vertically on the Y-axis. At this time, the resistance force will not generate a component force along the Y-axis direction, or will generate a relatively small component force in the Y-axis direction due to the assembly accuracy of the third transmission part 241. When the resistance force does not generate or generates a relatively small component force along the Y-axis direction, the third transmission part 241 can be positioned immobile, thereby positioning the fourth transmission part 242 and the second driven part 243, and then positioning the first clamp 250, avoiding the wiring harness connection end from being dispersed due to the loosening of the first clamp 250 during welding, thereby ensuring the welding quality. That is to say, by adopting the above-mentioned second transmission assembly 240 structure, the welding quality of the wiring harness connection end can be ensured while making the wiring harness terminal welding fixture structure more compact.

[0036] In one embodiment, reference Figure 5 , Figure 7 The second guide rail 245 is configured as a hole-shaped structure, and the fourth transmission part 242 is configured as a circular shaft structure. When the fourth transmission part 242 is inserted into the second guide rail 245, the fourth transmission part 242 and the second guide rail 245 can overlap partially in the vertical space, further making the structure more compact.

[0037] In one embodiment, reference Figure 4 , Figure 5The second transmission assembly 240 also includes a fixed seat 246, and the fixed seat 246 is detachably connected to the first driven part 223. The second linear drive member 230 is installed on the fixed seat 246. The fixed seat 246 is provided with a first guide groove 247 arranged along the Y-axis direction and a second guide groove 248 arranged along the X-axis direction. The third transmission part 241 is slidably arranged in the first guide groove 247, and the second driven part 243 is slidably arranged in the second guide groove 248. It should be noted that the provision of the fixed seat 246 can avoid the first driven part 223 from being too high in height direction. If the first driven part 223 is too high in height direction, the second drive member is installed on the first driven part 223 at this time, which will cause the first driven part 223 itself to be subjected to a large torque, which may cause the first driven part 223 to tilt. Further, the fixed seat 246 is connected to the first driven part 223 by screw locking, and the second linear drive member 230, the third transmission part 241, the second driven part 243, and the fourth transmission part 242 are all installed on the fixed seat 246, so that the second transmission assembly 240 forms a module, which is convenient for disassembly and maintenance. Further, the first guide groove 247 is opened at the bottom of the fixed seat 246, and the second guide groove 248 is opened at the top of the fixed seat 246. In this way, when the limit position of the first clamping jaw 250 needs to be adjusted according to different wiring harness welding, the third transmission part 241 can be replaced by replacing the position of the straight section 245b and the arc section 245a on the third transmission part 241. At the same time, the fixed seat 246 is fixed to the first driven part 223 by screw locking, and the bottom of the fixed seat 246 is provided with a first guide groove 247 for the installation of the third transmission part 241, which can be more convenient when replacing the third transmission part 241.

[0038] Furthermore, in some embodiments, a second groove 249 for reducing friction is formed on the outer side of the second driven portion 243 .

[0039] Further, in some embodiments, when the second guide rail 245 has only an arc-shaped structure, a plurality of positioning grooves (not shown) are provided on the outer side of the third transmission part 241, and the plurality of positioning grooves are distributed along the Y-axis direction. A positioning pin (not shown) and an electric telescopic rod (not shown) are embedded in the inner wall of the first guide groove 247. When the first clamping jaw 250 moves to a specified position (a position for limiting the wiring harness connection end) and needs to stop, the positioning pin corresponds to one of the plurality of positioning grooves. At this time, the electric telescopic rod drives the positioning pin to extend, and the positioning pin is inserted into the positioning groove, thereby limiting the third transmission part 241, and preventing the wiring harness and the terminal from being moved during the welding process of the third transmission part 241. Part 241 moves along the Y-axis direction, causing the first clamping jaw 250 to move along the X-axis direction. In this way, through the cooperation of the positioning pin and the positioning groove, the third transmission part 241 can adapt to the wiring harness welding work of different structures. Furthermore, in this embodiment, a linkage switch and an unlocking switch are also provided. When the first clamping jaw 250 moves to the specified position, the linkage switch is triggered, and the linkage switch enables the electric telescopic rod to work, thereby inserting the positioning pin into the positioning groove. When the welding is completed, the unlocking switch is used to make the electric telescopic rod pull the positioning pin out of the positioning groove, and then the third transmission part 241 moves along the Y-axis direction, thereby driving the second driven part 243 to move along the X-axis direction.

[0040] Further, in some embodiments, reference Figure 5 The second transmission assembly 240 also includes an elastic telescopic member 241a and a force measuring member 241b, which are installed on the fixed seat 246. The elastic telescopic member 241a can push the second driven part 243 so that the second driven part 243 has a tendency to move toward the processing position 110. The elastic telescopic member 241a is configured as a spring, and the force measuring member 241b is configured as a pressure force measuring device. When the second driven part 243 has a tendency to move toward the processing position 110, the first clamp 250 also has a tendency to move toward the processing position 110. Furthermore, during the welding process of the wiring harness connection end and the terminal, the resistance force generated by the influence of the welding head on the wiring harness connection end acts on the first clamp 250, and the first clamp 250 can act on the force measuring member 241b. The force measuring member 241b is subjected to the resistance of the first clamp 250 and thus feeds back a numerical value.

[0041] Further, in some embodiments, reference Figure 5 , Figure 6 The first linear driving member 210 is connected to the first transmission part 221 through an adapter 260 , and the second linear driving member 230 is connected to the third transmission part 241 through another adapter 260 .

[0042] In one embodiment, reference Figure 3The wiring harness terminal welding fixture also includes a terminal limit seat 300, which is detachably mounted on the base 100, and is used for placing the terminal. Furthermore, a mounting seat 140 is fixedly provided on the base 100, and a processing position 110 is provided on the mounting seat 140. Two clamping claw structures 200 are distributed on opposite sides of the mounting seat 140, wherein the terminal limit seat 300 is fixedly provided on the mounting seat 140 by screw locking. It should be noted that a placement groove 310 for placing the terminal is provided on the terminal limit seat 300, wherein only a part of the structure of the terminal is located in the placement groove 310. Furthermore, different terminal limit seats 300 can be replaced according to different terminals.

[0043] Further, in some embodiments, reference Figure 3 The mounting seat 140 is provided with a driving cylinder 150, and the terminal limit seat 300 is mounted on the movable end of the driving cylinder 150. The driving cylinder 150 can drive the terminal limit seat 300 to move along the Z-axis direction. Furthermore, the terminal limit seat 300 is mounted on the movable end of the driving cylinder 150 by screw locking. In this way, when the terminal limit seat 300 needs to be replaced, the terminal limit seat 300 is lifted up by the driving cylinder 150 to keep it away from the processing position 110. At this time, when the user replaces the terminal limit seat 300, more operating space can be obtained, which is convenient for replacement operation.

[0044] The wiring harness terminal fixture further includes a positioning assembly 500 (see Figure 1 , Figure 2 ), the positioning assembly 500 is installed on the second transmission assembly 240, further, the positioning assembly 500 is installed on the fixing seat 246, the positioning assembly 500 is used to position the wire harness, wherein the positioning assembly 500 is mainly to enable the wire harness connection end to be placed in a more suitable area on the terminal, that is, when the wire harness is placed, the wire harness connection end can be positioned by the positioning assembly 500, further, reference Figure 8The positioning assembly 500 includes a pressing plate 510, a first connecting rod 520, a second connecting rod 530, and a mounting bracket 540. The pressing plate 510 is fixed to the first connecting rod 520. The first end of the first connecting rod 520 is hinged to the first end of the second connecting rod 530. The second end of the second connecting rod 530 and the second end of the second connecting rod 530 are respectively hinged to the mounting bracket 540. The mounting bracket 540 is connected to the fixing seat 246 by screw locking. Furthermore, the second end of the first connecting rod 520 and the second end of the second connecting rod 530 are distributed along the X-axis direction, and the second end of the first connecting rod 520 is arranged close to the pressing plate 510. It should be noted that when the positioning assembly 500 is installed on the fixing seat 246, the fixing seat 2 While moving along the Z-axis direction, 46 can also drive the positioning assembly 500 to move, thereby driving the pressure plate 510 to move. When the pressure plate 510 moves downward, the pressure plate 510 can be against the terminal. At this time, when the wire harness is placed, the wire harness connection end is against the pressure plate 510, so that the pressure plate 510 serves the purpose of positioning the wire harness connection end, so that the wire harness connection end is placed in a suitable position on the terminal. This structure is mainly to facilitate manual placement operations to improve the placement accuracy of the wire harness. That is to say, the wire harness terminal welding fixture in this embodiment can be used semi-automatically, and the wire harness and terminal are placed in the wire harness terminal welding fixture manually, thereby reducing costs and improving the accuracy of the wire harness and terminal during welding.

[0045] In one embodiment, the wiring harness terminal fixture further includes a wiring harness clamping assembly 400, Figure 1 The harness clamping assembly 400 is mounted on the base 100, and the harness clamping assembly 400 is used to clamp the harness. Further, the harness clamping assembly 400 includes a first connecting seat 410, a second connecting seat 420, and a parallel cylinder 430, wherein the first connecting seat 410 is fixed to the mounting seat 140 by screw locking, the second connecting seat 420 is fixed to the first connecting seat 410 by screw locking, and can move relative to the first connecting seat 410 along the Y-axis direction, and the parallel cylinder 430 Fixedly mounted on the second connecting seat 420, the parallel cylinder 430 is provided with two second clamps 440, which can clamp the wiring harness. Furthermore, according to the wiring harness of different structures, the position of the second connecting seat 420 can be adjusted to adjust the distance between the parallel cylinder 430 and the processing position 110. That is to say, when the wiring harness structure is larger, the parallel cylinder 430 can be away from the processing position 110, and when the wiring harness structure is smaller, the parallel cylinder 430 can be close to the processing position 110.

[0046] The present invention also provides a welding device, which includes a wiring harness terminal welding fixture and a welding head that can move up and down. The specific structure of the wiring harness terminal welding fixture refers to the above embodiment. Since the present subject 2 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Wherein, the welding head is arranged above the wiring harness terminal welding fixture.

[0047] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wiring harness terminal welding fixture, characterized in that: include: A base, two groups of clamping jaw structures arranged on the base, a processing position is arranged between the two groups of the clamping jaw structures, and the processing position is used for placing the wiring harness and the terminal; The clamping jaw structure comprises a first linear driving member, a first transmission assembly, a second linear driving member, a second transmission assembly and a first clamping jaw, wherein the second linear driving member and the second transmission assembly are mounted on the first transmission assembly, and the first clamping jaw is mounted on the second transmission assembly, and the first linear driving member can drive the first transmission assembly to move the second linear driving member, the second transmission assembly and the first clamping jaw along the X-axis direction, and the second linear driving member can drive the second transmission assembly to move the first clamping jaw along the Z-axis direction; The first linear drive member and the second linear drive member are stacked and arranged, and the first linear drive member and the second linear drive member in the two groups of the clamping jaw structures are arranged on the same side and distributed along the X-axis direction.

2. The wiring harness terminal welding fixture according to claim 1, characterized in that: The first transmission assembly includes a first transmission part, a second transmission part and a first driven part, the first transmission part is connected to the first driven part through the second transmission part, the first linear driving member can drive the first transmission part to move along the Y-axis direction, and when the first transmission part moves along the Y-axis direction, the first driven part can be driven to move along the Z-axis direction through the second transmission part; The second linear driving member and the second transmission assembly are installed on the first driven part.

3. The wiring harness terminal welding fixture according to claim 2, characterized in that: The first transmission part is configured as a rod-shaped structure, and a first guide rail is provided on the first transmission part, and the first guide rail is inclined toward the Z-axis direction; The second transmission part is slidably disposed on the first guide rail, and when the second transmission part moves along the first guide rail, the second transmission part can drive the first driven part to move along the Z-axis direction; The second transmission part is rotatable relative to one of the first driven part or the first guide rail.

4. The wiring harness terminal welding fixture according to claim 3, characterized in that: The base is provided with a guide rod, the guide rod is extended along the Z-axis direction, the guide rod is plugged into the first driven part, and a first groove for reducing friction is provided on the outer side of the guide rod; And / or, the first guide rail is configured as a hole-shaped structure, and the second transmission part is configured as a round shaft structure; The second transmission part passes through the first guide rail, and both ends of the second transmission part are connected to the first driven part.

5. The wiring harness terminal welding fixture according to claim 2, characterized in that: The second transmission assembly includes a third transmission part, a fourth transmission part, and a second driven part, wherein the third transmission part is connected to the second driven part through the fourth transmission part, and the second linear driving member can drive the third transmission part to move along the Y-axis direction, and when the third transmission part moves along the Y-axis direction, the second driven part can be driven to move along the X-axis direction through the fourth transmission part; The third transmission part and the second driven part are both installed on the first driven part and can move relative to the first driven part, and the first clamping claw is installed on the second driven part.

6. The wiring harness terminal welding fixture according to claim 5, characterized in that: The third transmission part is configured as a rod-shaped structure, and a second guide rail is provided on the third transmission part; The third transmission part is slidably disposed on the second guide rail, and the second guide rail includes an arc segment and a straight segment extending along the Y-axis direction. When the third transmission part moves along the arc segment, it can drive the second driven part to move along the X-axis direction.

7. The wiring harness terminal welding fixture according to claim 6, characterized in that: The second transmission assembly further includes a fixed seat, the fixed seat is detachably connected to the first driven part, the second linear driving member is installed on the fixed seat, the fixed seat is provided with a first guide groove arranged along the Y-axis direction and a second guide groove arranged along the X-axis direction, the third transmission part is slidably arranged in the first guide groove, and the second driven part is slidably arranged in the second guide groove; And / or, the second guide rail is configured as a hole-shaped structure, and the fourth transmission part is configured as a round shaft structure; And / or, a second groove for reducing friction is provided on the outer side of the second driven part; And / or, the second transmission assembly further comprises an elastic telescopic member and a force measuring member, wherein the elastic telescopic member and the force measuring member are mounted on the fixed seat, and the elastic telescopic member can push the second driven part so that the second driven part has a tendency to move toward the processing position.

8. The wiring harness terminal welding fixture according to any one of claims 1 to 7, characterized in that: The wiring harness terminal welding fixture further comprises a terminal limiting seat, which is detachably mounted on the base and is used for placing the terminal; The wiring harness terminal fixture further comprises a positioning assembly, which is mounted on the second transmission assembly and is used for positioning the wiring harness.

9. The wiring harness terminal welding fixture according to claim 7, characterized in that: The wire harness terminal clamp also includes a wire harness clamping assembly, which is mounted on a base and is used to clamp a wire harness.

10. A welding device, characterized in that: It comprises a wiring harness terminal welding fixture and a welding head which can move up and down, wherein the welding head is arranged above the wiring harness terminal welding fixture, and the wiring harness terminal welding fixture is the wiring harness terminal welding fixture as claimed in any one of claims 1 to 9.

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