Wire harness terminal welding fixture and welding equipment

Abstract

The present invention discloses a wire harness terminal welding fixture and a welding device, which relate to the technical field of wire harness terminal processing. Among them, the wire harness terminal welding fixture includes: a base, and two sets of jaw structures arranged on the base. A processing position is provided between the two sets of jaw structures, and the processing position is used for placing the wire harness and the terminal; the jaw structure includes a first linear driving member, a first transmission assembly, a second linear driving member, a second transmission assembly, and a first jaw. The first linear driving member and the second linear driving member are arranged in a stacked manner, and the first linear driving member and the second linear driving member in the two sets of jaw structures are arranged on the same side and distributed along the X-axis direction. The technical solution provided by the present invention can solve the problem that the existing welding device has an insufficiently compact structure.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness terminal processing, and particularly relates to a wire harness terminal welding fixture and a welding device. 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, thereby connecting the materials together.

[0003] For the connection of existing wire harnesses and terminals, there is a method of welding through an ultrasonic welding device. During the welding process, the wire harness and the terminal are clamped together by a fixture. The fixture includes multiple cylinder drives and a first jaw. The multiple cylinders can drive the first jaw to move. Among them, the multiple cylinders are distributed on the side and bottom of the fixture. This distribution method makes the structure of the fixture relatively large, and thus there is a problem that the existing wire harness terminal welding device is not compact enough in structure. Summary of the Invention

[0004] The main object of the present invention is to propose a wire harness terminal welding device, aiming to solve the problem that the existing welding device is not compact enough in structure.

[0005] To achieve the above object, the wire harness terminal welding device proposed by the present invention includes:

[0006] A base, and two sets of jaw structures provided on the base. There is a processing position between the two sets of jaw structures, and the processing position is used for placing the wire harness and the terminal;

[0007] The jaw structure includes a first linear drive, a first transmission assembly, a second linear drive, a second transmission assembly, and a first jaw. The second linear drive and the second transmission assembly are installed on the first transmission assembly, and the first jaw is installed on the second transmission assembly. The first linear drive can drive the first transmission assembly so that the second linear drive, the second transmission assembly, and the first jaw move along the X-axis direction. The second linear drive can drive the second transmission assembly so that the first jaw moves along the Z-axis direction;

[0008] The first linear drive and the second linear drive are arranged in a stacked manner, and the first linear drives and the second linear drives in the two sets of jaw structures are arranged on the same side and distributed along the X-axis direction.

[0009] In an 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 drive can drive the first transmission part to move along the Y-axis direction. When the first transmission part moves along the Y-axis direction, it can drive the first driven part to move along the Z-axis direction through the second transmission part;

[0010] The second linear driving member and the second transmission assembly are mounted on the first driven part.

[0011] In one embodiment, the first transmission part is configured as a rod-shaped structure, and a first guide rail is provided on the first transmission part. The first guide rail is inclined in the Z-axis direction.

[0012] The second transmission part is slidably arranged on the first guide rail. When the second transmission part moves along the first guide rail, the second transmission part can drive the first driven part to move in the Z-axis direction.

[0013] The second transmission part can rotate relative to one of the first driven part or the first guide rail.

[0014] In one embodiment, the base is provided with a guide rod. The guide rod extends in the Z-axis direction. The guide rod is inserted into the first driven part, and a first groove for reducing friction is formed on the outer side of the guide rod.

[0015] 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.

[0016] The second transmission part penetrates through the first guide rail, and both ends of the second transmission part are connected to the first driven part.

[0017] 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 in the Y-axis direction. When the third transmission part moves in the Y-axis direction, it can drive the second driven part to move in the X-axis direction through the fourth transmission part.

[0018] The third transmission part and the second driven part are both mounted on the first driven part and can move relative to the first driven part. The first jaw is mounted on the second driven part.

[0019] In one embodiment, the third transmission part is configured as a rod-shaped structure, and a second guide rail is formed on the third transmission part.

[0020] The third transmission part is slidably arranged on the second guide rail. The second guide rail includes an arc section and a straight section extending in the Y-axis direction. When the third transmission part moves along the arc section, it can drive the second driven part to move in the X-axis direction.

[0021] In one embodiment, the second transmission assembly further includes a fixed seat detachably connected to the first driven part. The second linear drive 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;

[0022] And / or, the second guide rail is configured as a hole-like structure, and the fourth transmission part is configured as a round shaft structure;

[0023] And / or, a second groove for reducing friction is formed on the outer side of the second driven part;

[0024] And / or, the second transmission assembly further includes an elastic telescopic member and a force measuring member. The elastic telescopic member and the force measuring member are installed on the fixed seat. The elastic telescopic member can push against the second driven part so that the second driven part has a tendency to move towards the processing position.

[0025] In one embodiment, the wire harness terminal welding fixture further includes a terminal limiting seat detachably installed on the base for placing terminals;

[0026] The wire harness terminal welding fixture further includes a positioning assembly installed on the second transmission assembly for positioning the wire harness.

[0027] In one embodiment, the wire harness terminal welding fixture further includes a wire harness clamping assembly installed on the base for clamping the wire harness.

[0028] The present invention also provides a welding device, including a wire harness terminal welding fixture and a welding head capable of moving up and down. The welding head is arranged above the wire harness terminal welding fixture, and the wire harness terminal welding fixture is the wire harness terminal welding fixture as described in any one of the above.

[0029] The technical solution of the present invention is to arrange the first linear drive member and the second linear drive member in a stacked manner. Such an arrangement enables the jaw structure to utilize the space in the vertical direction. Moreover, the first linear drive member and the second linear drive member in the two groups of jaw structures are arranged on the same side and distributed along the X-axis direction. Further, the two first linear drive members and the two second linear drive members can be arranged on the same side in a 2×2 manner. Specifically, the 2×2 stacked arrangement can maximize the utilization of the space in the vertical direction without significantly increasing the width or length of the wire harness terminal welding fixture. Since all cylinders (the first linear drive member, the second linear drive member) are concentrated on the same side, this arrangement can also reduce the length of the connecting pipes and connecting wires, further improving the overall compactness, which is more compact than the structure in the prior art where two cylinders are provided on one side and two cylinders are provided at the bottom, thereby solving the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 It is a schematic structural diagram of an embodiment of a wire harness terminal welding fixture provided by the present invention;

[0032] Figure 2 It is Figure 1 A schematic structural diagram of another perspective of the wire harness terminal welding fixture;

[0033] Figure 3 It is a schematic structural diagram of an embodiment of a mounting seat, a terminal limiting seat, and a driving cylinder member in the wire harness terminal welding fixture provided by the present invention;

[0034] Figure 4 It is Figure 1 A schematic structural diagram of the jaw structure in

[0035] Figure 5 It is Figure 4 An exploded schematic diagram of the jaw structure in

[0036] Figure 6 It is Figure 5 A schematic structural diagram of the first transmission part, the second transmission part, the first guide rail, and the adapter in

[0037] Figure 7 It is Figure 6 A schematic structural diagram of the third transmission part and the second guide rail in

[0038] Figure 8 is Figure 1 a structural schematic diagram of the positioning component in

[0039] Explanation of the reference numerals in the attached drawings:

[0040] 100, base; 110, processing position; 120, guide rod; 130, first groove; 140, mounting seat; 150, driving cylinder part;

[0041] 200, jaw structure; 210, first linear driving part; 220, first transmission component; 221, first transmission part; 222, second transmission part; 223, first driven part; 223a, installation space; 223b, first cavity wall; 223c, limiting block; 224, first guide rail; 230, second linear driving part; 240, second transmission component; 241, third transmission part; 242, fourth transmission part; 243, second driven part; 245, second guide rail; 245a, arc section; 245b, straight section; 246, fixed seat; 247, first guide groove; 248, second guide groove; 249, second groove; 241a, elastic telescopic part; 241b, force measuring part; 250, first jaw; 260, adapter;

[0042] 300, terminal limiting seat; 310, placement groove;

[0043] 400, wire harness clamping component; 410, first connecting seat; 420, second connecting seat; 430, parallel cylinder; 440, second jaw;

[0044] 500, positioning component; 510, pressing plate; 520, first connecting rod; 530, second connecting rod; 540, mounting bracket.

[0045] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0047] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] Ultrasonic welding is a welding technique that uses high-frequency mechanical vibration energy to generate heat between the contact surfaces of materials, thereby joining the materials together.

[0050] In the existing connection of wire harnesses and terminals, there is a method of welding through an ultrasonic welding device. During the welding process, the wire harness and the terminal are clamped together by a fixture. The fixture includes multiple cylinder drives and a first jaw. The multiple cylinders can drive the first jaw to move. Among them, the multiple cylinders are distributed on the side and bottom of the fixture. This distribution method makes the structure of the fixture relatively large, and thus there is a problem that the existing wire harness terminal welding device is not compact enough.

[0051] The present invention provides a wire harness terminal welding fixture.

[0052] Please refer to Figure 1 、 Figure 2 , in an embodiment of the present invention, the wire harness terminal welding fixture includes:

[0053] A base 100, and two sets of jaw structures 200 provided on the base 100. There is a processing position 110 between the two sets of jaw structures 200. 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 sets of jaw structures 200 can position the terminal and limit the relative two 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 restricted by the terminal, the relative two sides of the wire harness connection end are limited by the two jaw structures 200, and 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.

[0054] Further, the jaw structure 200 may adopt the following structure. The jaw 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 jaw 250. The second linear drive member 230 and the second transmission assembly 240 are installed on the first transmission assembly 220, and the first jaw 250 is installed on the second transmission assembly 240. The first linear drive member 210 can drive the first transmission assembly 220 so that the second linear drive member 230, the second transmission assembly 240, and the first jaw 250 move in the X-axis direction. The second linear drive member 230 can drive the second transmission assembly 240 so that the first jaw 250 moves in 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 jaw 250 moves in the Z-axis direction, the first jaw 250 can press or release the terminal. When the first jaw 250 moves in the X-axis direction, at this time, the first jaw 250 can limit one side of the connection end of the wire harness. Specifically, the first jaws 250 in the two sets of jaw structures 200 can move synchronously. At this time, the two first jaws 250 can rise and fall synchronously and approach or move away from each other. Further, in some embodiments, both the first linear drive member 210 and the second linear drive member 230 are configured as cylinder structures. In some embodiments, the first linear drive member 210 and the second linear drive member 230 can also be configured as hydraulic cylinder structures. When the first linear drive member 210 and the second linear drive member 230 are configured as cylinder structures, at this time, the first linear drive member 210 and the second linear drive member 230 have a relatively fast response speed compared to the hydraulic cylinder.

[0055] Further, the first linear drive member 210 and the second linear drive member 230 are arranged in a stacked manner. Such an arrangement can enable the jaw structure 200 to utilize the space in the vertical direction, and the first linear drive member 210 and the second linear drive member 230 in the two sets of jaw structures 200 are arranged on the same side and distributed along the X-axis direction. Further, the two first linear drive members 210 and the two second linear drive members 230 can be arranged on the same side in a 2*2 manner. Specifically, the 2*2 stacked arrangement can maximize the utilization of the space in the vertical direction without significantly increasing the width or length of the wire harness terminal welding fixture. Since all the cylinders (the first linear drive member 210, the second linear drive member 230) are concentrated on the same side, this arrangement can also reduce the length of the connecting pipes and connecting wires, further improving the overall compactness, which is more compact than the structure in the prior art where there are two cylinders on one side and two cylinders at the bottom, thereby solving the technical problems existing in the prior art. In addition, because all the cylinders are in a relatively close position, the maintenance and repair work can also be simplified during maintenance and repair.

[0056] In one embodiment, with reference to Figure 1 , 4 , Figure 5 , in order to enable the first linear drive member 210 and the second linear drive member 230 to be concentrated on the same side, the first transmission assembly 220 may adopt the following structure. The first transmission assembly 220 includes a first transmission portion 221, a second transmission portion 222, and a first driven portion 223. The first transmission portion 221 is connected to the first driven portion 223 through the second transmission portion 222. The first linear drive member 210 can drive the first transmission portion 221 to move along the Y-axis direction. When the first transmission portion 221 moves along the Y-axis direction, it can drive the first driven portion 223 to move along the Z-axis direction through the second transmission portion 222. That is to say, the second transmission portion 222 can change part of the force transmitted by the first transmission portion 221 along the Y-axis direction into the force transmitted along the Z-axis direction, and thus act on the first driven portion 223 to make the first driven portion 223 move along the Z-axis direction. The second linear drive member 230 and the second transmission assembly 240 are installed on the first driven portion 223. Further, when the first driven portion 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 portion 223, at this time, the second linear drive member 230 and the second transmission assembly 240 can also move along the Z-axis direction following the first driven portion 223.

[0057] In one embodiment, with reference to Figure 5 , Figure 6 , the first transmission portion 221 is configured as a rod-shaped structure. Further, in this embodiment, the rod-shaped structure is configured as a rectangular rod-shaped structure. That is to say, 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 portion 221. The first guide rail 224 is inclined in the Z-axis direction. Further, in this embodiment, the first guide rail 224 is configured as a hole-shaped structure. In some embodiments, the guide rail can be configured as a protruding long strip structure or a concave long strip structure.

[0058] Further, with reference to Figure 6, the 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 in the Z-axis direction; further, when the first guide rail 224 is configured as a hole-shaped structure and the second transmission part 222 is configured as a round shaft structure; the second transmission part 222 penetrates 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, at this time, the second transmission part 222 has better integrity. The second transmission part 222 can better achieve synchronous transmission during the transmission process, and the second transmission part 222 can also have a better service life. Compared with the segmented second transmission part 222, at the same time, the second transmission part 222 with a round shaft structure is more convenient to assemble with the hole-shaped first guide rail 224. Just insert the second transmission part 222 into the first guide rail 224. Further, in order to facilitate the assembly of the second transmission part 222 with the first guide rail 224 and the first driven part 223, a mounting space 223a is recessed on the outer side of the first driven part 223. A first cavity wall 223b is provided in the mounting space 223a. One end of the first cavity wall 223b is connected to the second transmission part 222, and can limit one side of the first transmission part 221 with a rectangular rod-shaped structure. A T-shaped limiting block 223c is detachably connected in the mounting space 223a. Further, the limiting block 223c is connected to the first driven part 223 by means of screw locking. That is to say, the limiting block 223c is fixed to the first driven part 223. At this time, the limiting block 223c is connected to the other end of the second transmission part 222, and can position the other side of the first transmission part 221 with a rectangular rod-shaped structure. In this way, under the action of the limiting block 223c and the mounting 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 at the same time reduce the contact area between the first transmission part 221 and the first driven part 223 during the movement. On the other hand, it can also make the structure of the first transmission assembly 220 more compact, and further make the structure of the wire harness terminal welding fixture more compact.

[0059] 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 to say, when the first transmission part 221 moves along the Y-axis direction, the contact surface with the limiting block 223c is smaller, so the generated frictional force is also smaller, making the first driven part 223 move more stably along the Z-axis direction, and thus making the first jaw 250 move more stably along the Z-axis direction. That is to say, while ensuring that the structure of the wire harness terminal welding fixture is more compact, the wire harness terminal welding fixture can also be more stable during use.

[0060] In one embodiment, further, in order to make the first driven part 223 move more smoothly along the Z-axis direction, referring to Figure 5 , the base 100 is provided with a guide rod 120, the guide rod 120 extends along the Z-axis direction, and the guide rod 120 is inserted into the first driven part 223. The guide rod 120 can be configured as a rectangular rod-shaped structure, and under the action of the rectangular rod-shaped structure, the first driven part 223 can be limited in the circumferential direction. It can be understood that the first driven part 223 is provided with a hole-shaped structure or a cavity structure with a rectangular structure corresponding to the guide rod 120. Further, the guide rod 120, the limiting block 223c, and the second transmission part 222 are arranged along the X-axis direction. In this way, the forces exerted by the first driven part 223 on the second transmission part 222 and the guide rod 120 can be distributed in one direction, making the first driven part 223 move more stably along the Z-axis direction, and thus making the first jaw 250 move more stably along the Z-axis direction.

[0061] In one embodiment, referring to Figure 1 、 Figure 4 、 Figure 5, the second transmission component 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 driving member 230 can drive the third transmission part 241 to move in the Y-axis direction. When the third transmission part 241 moves in the Y-axis direction, it can drive the second driven part 243 to move in the X-axis direction through the fourth transmission part 242. That is to say, through the fourth transmission part 242, part of the force driven by the third transmission part 241 in the Y-axis direction can be converted into a force transmitted in the X-axis direction and act on the second driven part 243, so that the second driven part 243 moves in 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. When the first driven part 223 moves in the Z-axis direction, it can drive the third transmission part 241 and the second driven part 243 to move in the Z-axis direction. Further, the third transmission part 241 can move relative to the first driven part 223 in the Y-axis direction, and the second driven part 243 can move relative to the first driven part 223 in the X-axis direction. The first jaw 250 is installed on the second driven part 243. In this way, under the action of the fourth transmission part 242, the second linear driving member 230 and the first linear driving member 210 can be arranged on the same side, and the structure of the wire harness terminal welding fixture can be made more compact.

[0062] In one embodiment, refer to Figure 5 , further, the third transmission part 241 is configured as a rod-shaped structure. Further, in this embodiment, the rod-shaped structure is configured as a rectangular rod-shaped structure. That is to say, 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 this embodiment, the first guide rail 224 is configured as a hole-shaped structure. In some embodiments, the guide rail can be configured as a protruding long strip structure or a recessed long strip structure. The third transmission part 241 is slidably arranged in the second guide rail 245. The second guide rail 245 includes an arc section 245a and a straight section 245b extending in 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 jaw 250 limits one side of the wire harness connection end at the preset position, at this time, the fourth transmission part 242 is located in the straight segment 245b. Thus, when the welding head presses down on the wire harness connection end, at this time, both sides of the wire harness connection end will give resistance to the first jaw 250, so that the two first jaws 250 are subjected to a force along the X-axis direction. The direction of this resistance is away from the processing position 110. At this time, this resistance is transmitted to the second driven part 243 through the first jaw 250, and then transmitted to the fourth transmission part 242 through the second driven part 243, and finally acts on the third transmission part 241 by the fourth transmission part 242. Since the fourth transmission part 242 is located in the straight segment 245b at this time, that is to say, this resistance along the X-axis direction acts vertically on the Y-axis, and at this time, this resistance will not generate a component force along the Y-axis direction, or a relatively small component force along the Y-axis direction is generated due to the assembly accuracy of the third transmission part 241. When the resistance does not generate or generates a relatively small component force along the Y-axis direction, at this time, the third transmission part 241 can be positioned and fixed, thereby positioning the fourth transmission part 242 and the second driven part 243, and further realizing the positioning of the first jaw 250, avoiding the situation that the wire harness connection end is scattered due to the loosening of the first jaw 250 during welding, so as to ensure the welding quality. That is to say, by adopting the above-mentioned structure of the second transmission assembly 240, while making the structure of the wire harness terminal welding fixture more compact, the welding quality of the wire harness connection end can also be ensured.

[0063] In one embodiment, referring to Figure 5 、 Figure 7 , the second guide rail 245 is configured as a hole-like structure, and the fourth transmission part 242 is configured as a round shaft structure. When the fourth transmission part 242 is inserted into the second guide rail 245, it can make the fourth transmission part 242 and the second guide rail 245 partially overlap in the vertical space, and further make the structure more compact.

[0064] In one embodiment, referring to Figure 4 、 Figure 5, the second transmission assembly 240 further includes a fixed seat 246 which is detachably connected to the first driven part 223. The second linear drive 230 is mounted 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 setting the fixed seat 246 can avoid the relatively high height of the first driven part 223. If the height of the first driven part 223 is relatively high, when the second drive is mounted on the first driven part 223, it will cause a relatively large torque on the first driven part 223 itself, which may cause the first driven part 223 to tilt. Further, the fixed seat 246 is connected to the first driven part 223 by means of screw attachment. At the same time, the second linear drive 230, the third transmission part 241, the second driven part 243, and the fourth transmission part 242 are all mounted on the fixed seat 246, so that the second transmission assembly 240 forms a module, which is convenient for disassembly, assembly 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. Thus, when the limit position of the first jaw 250 needs to be adjusted when welding different wire harnesses, the third transmission part 241 can be replaced, and the positions of the straight section 245b and the arc section 245a on the third transmission part 241 can be changed. At the same time, the fixed seat 246 is fixedly arranged on the first driven part 223 by means of screw attachment, and the bottom of the fixed seat 246 is provided with a first guide groove 247 for installing the third transmission part 241. At this time, it is relatively convenient to replace the third transmission part 241.

[0065] Further, in some embodiments, a second groove 249 for reducing friction is opened on the outer side of the second driven part 243.

[0066] Further, in some embodiments, when the plurality of second guide rails 245 only have an arc structure, a plurality of positioning grooves (not shown) are formed on the outer side of the third transmission part 241. 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 needs to stop moving to a specified position (the position for limiting the wire harness connection end), at this time, 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 at this time, the positioning pin is inserted into the positioning groove, so as to limit the third transmission part 241, and prevent the third transmission part 241 from moving along the Y-axis direction during the welding process of the wire harness and the terminal, resulting in the first clamping jaw 250 moving 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 be adapted to the wire harness welding work of different structures. Further, 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 causes the electric telescopic rod to work, so as to insert the positioning pin into the positioning groove. After the welding is completed, through the unlocking switch, the electric telescopic rod pulls the positioning pin out of the positioning groove, and then the third transmission part 241 moves along the Y-axis direction, so as to drive the second driven part 243 to move along the X-axis direction.

[0067] Further, in some embodiments, referring to Figure 5 FIG.

[0068] Further, in some embodiments, referring to Figure 5 、 Figure 6 FIG.

[0069] In one embodiment, referring to Figure 3, the wire harness terminal welding fixture further includes a terminal limiting seat 300, which is detachably installed on the base 100. The terminal limiting seat 300 is used for placing terminals. Further, a mounting seat 140 is fixedly provided on the base 100, and a processing position 110 is arranged on the mounting seat 140. The two jaw structures 200 are distributed on opposite sides of the mounting seat 140. Among them, the terminal limiting seat 300 is fixedly arranged on the mounting seat 140 by means of screw attachment. It should be noted that a placement groove 310 for placing terminals is provided on the terminal limiting seat 300, and only part of the structure of the terminal is located in the placement groove 310. Further, different terminal limiting seats 300 can be replaced according to different terminals.

[0070] Further, in some embodiments, referring to Figure 3 , a driving cylinder member 150 is provided on the mounting seat 140, and the terminal limiting seat 300 is installed on the movable end of the driving cylinder member 150. The driving cylinder member 150 can drive the terminal limiting seat 300 to move in the Z-axis direction. Further, the terminal limiting seat 300 is installed on the movable end of the driving cylinder member 150 by means of screw attachment. In this way, when the terminal limiting seat 300 needs to be replaced, the driving cylinder member 150 jacks up the terminal limiting seat 300 to make it away from the processing position 110. At this time, when the user replaces the terminal limiting seat 300, more operating space can be obtained, which is convenient for replacement operation.

[0071] The wire harness terminal welding fixture further includes a positioning component 500 (see Figure 1 , Figure 2 ), and the positioning component 500 is installed on the second transmission component 240. Further, the positioning component 500 is installed on the fixed seat 246. The positioning component 500 is used for positioning the wire harness. Among them, the positioning component 500 is mainly to enable the wire harness connection end to be placed in a more appropriate area on the terminal. That is to say, when the wire harness is placed, the wire harness connection end can be positioned by the positioning component 500. Further, referring to Figure 8, the 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 fixedly provided on 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 fixed seat 246 by means of screw attachment. Further, 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 fixed seat 246, at this time, while the fixed seat 246 moves along the Z-axis direction, it can also drive the positioning assembly 500 to move, thereby driving the pressing plate 510 to move. When the pressing plate 510 moves downward, the pressing plate 510 can abut against the terminal. At this time, when the wire harness is placed, the wire harness connection end abuts against the pressing plate 510. Thus, the pressing plate 510 serves the purpose of positioning the wire harness connection end, making the wire harness connection end placed at a suitable position on the terminal. This structure is mainly to facilitate improving the placement accuracy of the wire harness during manual placement operations. That is to say, the wire harness terminal welding fixture in this embodiment can be used semi-automatically. Someone places the wire harness and the terminal in the wire harness terminal welding fixture, which can reduce costs and also improve the accuracy during the welding of the wire harness and the terminal.

[0072] In one embodiment, the wire harness terminal welding fixture further includes a wire harness clamping assembly 400. Refer to Figure 1 , the wire harness clamping assembly 400 is installed on the base 100. The wire harness clamping assembly 400 is used to clamp the wire harness. Further, the wire harness clamping assembly 400 includes a first connecting seat 410, a second connecting seat 420, and a parallel cylinder 430. Among them, the first connecting seat 410 is fixedly provided on the mounting seat 140 by means of screw attachment. The second connecting seat 420 is fixedly provided on the first connecting seat 410 by means of screw attachment and can move relative to the first connecting seat 410 along the Y-axis direction. The parallel cylinder 430 is fixedly provided on the second connecting seat 420. Two second jaws 440 are provided on the parallel cylinder 430. The two second jaws 440 can clamp the wire harness. Further, according to wire harnesses with different structures, the distance between the parallel cylinder 430 and the processing position 110 can be adjusted by adjusting the position of the second connecting seat 420. That is to say, when the wire harness structure is large, at this time, the parallel cylinder 430 can be far away from the processing position 110. When the wire harness structure is small, at this time, the parallel cylinder 430 can be close to the processing position 110.

[0073] The present invention further provides a welding device, which includes a wiring harness terminal welding fixture and a welding head capable of moving up and down. The specific structure of the wiring harness terminal welding fixture refers to the above-mentioned embodiments. Since this theme adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here. Among them, the welding head is arranged above the wiring harness terminal welding fixture.

[0074] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is 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 the two first linear drive members and the two second linear drive members in the two groups of the clamping jaw structures are arranged on the same side and distributed along the X-axis direction; 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 mounted on the first driven part; 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 mounted on the first driven part and can move relative to the first driven part, and the first clamp is mounted on the second driven part; The fourth transmission part is configured as a rod-shaped structure, and the third transmission part is provided with a second guide rail; The fourth transmission part is slidably arranged 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 fourth transmission part moves along the arc segment, it can drive the second driven part to move along the X-axis direction. When the first clamp limits one side of the wiring harness connection end at a preset position, the fourth transmission part is located in the straight segment.

2. The wiring harness terminal welding fixture according to claim 1, 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.

3. The wiring harness terminal welding fixture according to claim 2, 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.

4. The wiring harness terminal welding fixture according to claim 1, 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.

5. The wiring harness terminal welding fixture according to any one of claims 1 to 4, 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 welding fixture further comprises a positioning assembly, which is mounted on the second transmission assembly and is used for positioning the wiring harness.

6. The wiring harness terminal welding fixture according to claim 5, characterized in that: The wire harness terminal welding fixture also includes a wire harness clamping assembly, which is installed on a base and is used to clamp the wire harness.

7. 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 6.

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