Wire harness welding equipment

Abstract

The embodiment of the utility model discloses wire harness welding equipment which comprises an electrode copper bar assembly, a liftable upper electrode assembly and a welding positioning mechanism. The welding positioning mechanism is further provided with a lower electrode assembly. The electrode copper bar assembly supplies power to the liftable upper electrode assembly and the lower electrode assembly; the welding positioning mechanism is provided with two positioning terminals capable of moving relatively, the lifting upper electrode assembly and the lifting lower electrode assembly are each provided with a molybdenum electrode which is detachably connected, and the molybdenum electrodes and the positioning terminals jointly form a positioning welding notch. The upper electrode and the lower electrode are detachably connected with the fixing plate through the molybdenum electrode, and the molybdenum electrode has the advantages of being high in melting point, high in hardness and resistant to adhesion, is suitable for large-current resistance welding and is convenient and fast to replace. According to the positioning assembly, the left positioning assembly and the right positioning assembly which are symmetrically arranged are adopted for welding a welding piece, a large air cylinder is replaced by a small air cylinder, reliable positioning and clamping of a large-size workpiece can be guaranteed, and the action is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a welding device with replaceable electrodes. Background Art

[0002] In the field of resistance welding equipment, when welding rope-shaped welding parts formed by multiple strands of cables, such as copper ropes, not only a positioning mechanism is required to clamp and fix the welding position during the welding process, but also welding electrodes are required to weld and clamp them. Since the welding electrodes also need to take into account the clamping and fixing functions of the welding positions, the electrodes are easily worn out and need to be replaced from time to time during long-term work. Resistance welding electrodes generally adopt an integrated electrode terminal structure, which is not convenient to replace, easily causing long equipment downtime and affecting production efficiency. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a wire harness welding device to solve the technical problem of the inconvenience of replacing the existing integrated large electrode.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The embodiment of the utility model provides a wire harness welding device, which includes an electrode copper bar assembly, a liftable upper electrode assembly and a welding positioning mechanism;

[0006] The welding positioning mechanism is also provided with a lower electrode assembly;

[0007] The electrode copper busbar assembly supplies power to the liftable upper electrode assembly and the lower electrode assembly; the liftable upper electrode assembly and the lower electrode assembly are aligned with each other in the vertical direction, the welding positioning mechanism is provided with two relatively movable positioning terminals, the liftable upper electrode assembly and the lower electrode assembly are both provided with detachably connected molybdenum electrodes, and the molybdenum electrodes and the positioning terminals together form a positioning welding notch.

[0008] Wherein, the liftable upper electrode assembly comprises:

[0009] A fixing module, a driving module connected to the fixing module, a connecting module connected to a driving end of the driving module, and an upper electrode module connected to the connecting module;

[0010] The driving end of the driving module is passed through the fixing module, and the connecting module has a guide rod, which is also passed through the fixing module. The connecting module is also electrically connected to the electrode copper busbar assembly. The driving module drives the connecting module and simultaneously drives the upper electrode module to rise and fall in the vertical direction guided by the fixing module, so as to approach or move away from the lower electrode assembly.

[0011] Among them, the connecting module includes: a connecting plate, a connecting rod and the guide rod vertically connected to the top of the connecting plate, and an adjustment plate connected to the bottom of the connecting plate; at least one group of T-slots are also arranged on the connecting plate, and T-shaped pieces are arranged in the T-slots. The T-shaped pieces are connected to the adjusting plate by screws, so that the relative position between the adjusting plate and the connecting plate can be adjusted by adjusting the screws.

[0012] Wherein, the upper electrode module includes: a docking plate, a fixed plate connected to the bottom of the docking plate and the molybdenum electrode detachably connected to the fixed plate; wherein, the docking plate is provided with a plurality of waist-shaped holes, and the docking plate is adjustably connected to the adjustment plate by screws passing through the waist-shaped holes; the fixed plate is provided with a connecting groove, and the side opening of the connecting groove is provided with a pressure plate, and the molybdenum electrode is fixedly connected to the connecting groove by the pressure plate.

[0013] Wherein, the welding positioning assembly comprises: a supporting base, a welding electrode assembly, the welding electrode assembly is connected to the supporting base; a left positioning assembly, the left positioning assembly is connected to the supporting base and is on one side of the welding electrode assembly; and

[0014] a right positioning assembly, the right positioning assembly being connected to the support base and being located at the other side of the welding electrode assembly relative to the left positioning assembly;

[0015] Among them, the left positioning assembly has the same structure as the right positioning assembly and is symmetrically arranged with the welding electrode assembly. When the weld is positioned for welding, the left positioning assembly and the right positioning assembly move laterally to approach the electrode end of the welding electrode assembly to clamp and position the weld.

[0016] Among them, the left positioning assembly includes: a support plate, a driving device connected to the support plate, a first guide unit, a second guide unit and a movable positioning unit; the first guide unit, the second guide unit and the movable positioning unit are linearly distributed in the direction of the welding electrode assembly in sequence, the driving device has a wedge, the wedge has a plane and an inclined surface, the inclined surface is arranged on the side of the wedge opposite to the plane, wherein the plane abuts against the first guide unit, the inclined surface abuts against the second guide unit, and the movable positioning unit is connected to the second guide unit; the driving device drives the wedge to telescopically move, so that the inclined surface drives the second guide unit abutting against it to move toward the direction of the welding electrode assembly, so as to synchronously drive the movable positioning unit to clamp or release the welding part.

[0017] Wherein, the first guide unit and the second guide unit are each provided with a roller, and the inclined surface and the plane are respectively connected to the wheel surface of the roller.

[0018] Wherein, when the wedge-shaped member is controlled by the driving device to telescopically move, the plane always remains perpendicular to the moving direction of the mobile positioning unit.

[0019] The first guide unit and the second guide unit have the same structure, and both include: a connecting member, a rotating shaft connected to the connecting member, and a roller rotatably connected to the rotating shaft, and the connecting member is connected to the support plate.

[0020] Among them, the mobile positioning unit includes: a guide unit and a positioning unit, the guide unit has a guide structure, the positioning unit is penetrated by the guide structure, and the end of the guide unit is connected to the second guide unit, the guide unit is also provided with at least one connecting hole, an elastic member is inserted into the connecting hole, one end of the elastic member abuts against the second guide unit, so as to provide buffering between the second guide unit and the mobile positioning unit, the positioning unit includes: a telescopic member, a connecting seat connected to the end of the telescopic member, a positioning terminal fixed on the connecting seat, the guide structure is a guide hole, and the telescopic member is penetrated by the guide hole.

[0021] The wire harness welding equipment of the utility model uses molybdenum electrodes to detachably connect the upper electrode and the lower electrode to the fixed plate. The molybdenum electrodes have the characteristics of high melting point, high hardness and anti-adhesion, which are not only suitable for high-current resistance welding, but also convenient and quick to replace. Its positioning mechanism uses the left positioning component and the right positioning component with the same structure and symmetrical arrangement to position the welded parts, so that the small cylinder can replace the large cylinder, and can ensure the reliable positioning and clamping of large-sized workpieces. Its processing and maintenance costs are lower, and the telescopic positioning action is more stable and reliable.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of the wire harness welding equipment from different perspectives according to an embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the liftable upper electrode assembly of the wire harness welding equipment according to an embodiment of the utility model.

[0025] Figure 4 This is a schematic diagram of the exploded structure of the liftable upper electrode assembly of the wire harness welding equipment according to an embodiment of the utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the fixing module of the wire harness welding equipment according to an embodiment of the present utility model.

[0027] Figure 6 This is a partial structural schematic diagram of a connection module of a wire harness welding device according to an embodiment of the present utility model.

[0028] Figure 7 It is a partial structural schematic diagram of the upper electrode module of the wire harness welding equipment according to an embodiment of the utility model.

[0029] Figure 8 for Figure 1 Schematic diagram of the enlarged structure of local A in the middle.

[0030] Fig. 9 and Fig.10 It is a schematic diagram of the overall structure of the welding positioning mechanism of the wire harness welding equipment according to the embodiment of the utility model from different perspectives.

[0031] Fig.11 It is a partial structural schematic diagram of the left positioning component of the welding positioning mechanism of the wire harness welding equipment according to an embodiment of the utility model.

[0032] Fig.12 It is a partial structural schematic diagram of the second positioning unit and the guide unit of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to the embodiment of the utility model.

[0033] Fig.13 It is a partial structural schematic diagram of the first guide unit of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to an embodiment of the utility model.

[0034] Fig.14 It is a partially exploded schematic diagram of the first guide unit of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to an embodiment of the utility model.

[0035] Fig.15 It is a partially exploded schematic diagram of the driving device of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to the embodiment of the utility model.

[0036] Fig.16 This is an exploded view of the connection seat portion of the left positioning component of the welding positioning mechanism of the wire harness welding equipment according to an embodiment of the utility model.

[0037] Fig.17 It is an exploded view of the guide unit of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to the embodiment of the utility model.

[0038] Fig.18 This is a schematic diagram of assembling other internal components of the left positioning assembly of the welding positioning mechanism of the wire harness welding equipment according to an embodiment of the utility model. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] See also Figures 1 to 18 , this embodiment provides a wire harness welding device 100, which includes an electrode copper bar assembly 1, a liftable upper electrode assembly 2 and a welding positioning mechanism 3;

[0047] The welding positioning mechanism 3 is also provided with a lower electrode assembly 32;

[0048] The electrode copper busbar assembly 1 supplies power to the liftable upper electrode assembly 2 and the lower electrode assembly 32; the liftable upper electrode assembly 2 and the lower electrode assembly 32 are aligned with each other in the vertical direction, and the welding positioning mechanism 3 is provided with two relatively movable positioning terminals 3363, and the liftable upper electrode assembly 2 and the lower electrode assembly 32 are both provided with detachably connected molybdenum electrodes 243 (321), and the molybdenum electrode 243 (321) and the positioning terminals 3363 together form a rectangular positioning welding notch 110.

[0049] The end surfaces of the positioning terminal 3363 and the molybdenum electrode 243 (321) in contact with the welded part are both planes, so they together enclose a rectangular positioning welding notch 110. In another embodiment, the end surfaces of the positioning terminal 3363 and the molybdenum electrode 243 (321) can also be other shapes, which are determined according to the required shape of the welding position of the welded part, so the rectangular positioning welding notch 110 can also be other shapes such as a column.

[0050] Please refer again Figure 2The electrode copper bar assembly 1 includes: a wiring module 11, a positive copper bar 12 and a negative copper bar 13 electrically connected to the wiring module 11, and the wiring module 11 is externally connected to a power source for inputting a large current to the positive copper bar 12 and the negative copper bar 13 to complete resistance welding. In this embodiment, the positive copper bar 12 is electrically connected to the liftable upper electrode assembly 2, and the negative copper bar 13 is electrically connected to the lower electrode assembly 32.

[0051] Please refer again Figures 3 to 7 , the liftable electrode assembly 2 comprises:

[0052] A fixing module 22, a driving module 21 connected to the fixing module 22, a connecting module 23 connected to a driving end of the driving module 21, and an upper electrode module 24 connected to the connecting module 23;

[0053] The driving end of the driving module 21 is inserted into the fixing module 22, and the connecting module 23 has a guide rod 233, which is also inserted into the fixing module 22. The connecting module 23 is also electrically connected to the positive copper bar 12 of the electrode copper bar assembly 1. The driving module 21 drives the connecting module 23, and synchronously drives the upper electrode module 24 to move up and down in the vertical direction with the fixing module 22 as the guide, so that the upper electrode module 24 is close to or away from the lower electrode assembly 32. The fixing module 22 is connected and fixed by the equipment bracket part, and the driving module 21 is fixedly connected to the top of the fixing module 22.

[0054] In this embodiment, the driving device 21 is a cylinder driving unit such as a pneumatic cylinder or an electric cylinder. In other embodiments, the driving device 21 may also be a servo unit such as a motor, and the transmission structure between the driving device 21 and the connecting module 23 is a screw module transmission.

[0055] The connection module 23 includes: a connection plate 231, a connection rod 232 and a guide rod 233 vertically connected to the top of the connection plate 231, and an adjustment plate 234 connected to the bottom of the connection plate 231; at least one group of T-slots 2311 are also provided on the connection plate 231, and T-shaped pieces 235 are provided in the T-slots 2311. The T-shaped pieces 235 are connected to the adjustment plate 234 by screws, so that the relative position between the adjustment plate 234 and the connection plate 231 can be adjusted by adjusting the screws to change the height of the bottom surface of the adjustment plate 234, and correspondingly adjust the vertical angle of the molybdenum electrode 243 of the upper electrode module 24. The positive copper bar 12 is fixedly connected to the side of the connection plate 231.

[0056] The fixing module 22 is provided with a guide hole 222 for passing the guide rod 233, and a connection hole 221 for passing the connection rod 232, and the guide hole 222 and the connection hole 221 are both arranged in the vertical direction and parallel to each other. The fixing module 22 is fixedly supported on the frame, used to connect the driving module 21, and limit and guide the lifting action of the connection module 23.

[0057] like Figure 7 As shown, the upper electrode module 24 includes: a docking plate 241, a fixing plate 242 connected to the bottom of the docking plate 241, and the molybdenum electrode 243 detachably connected to the fixing plate 242; wherein, the docking plate 241 is provided with a plurality of waist-shaped holes 2411, and the docking plate 241 is adjustably connected to the adjustment plate 234 by screws penetrating the waist-shaped holes 2411, and the bottom surface of the adjustment plate 234 and the top surface of the docking plate 241 are both planes, and when the two are adjusted to the appropriate position, the screws are passed through the waist-shaped holes 2411 to fix and lock the two, and the front and rear or left and right positions of the adjustable molybdenum electrode 243 on the horizontal plane are adjusted by adjusting the connecting plate 241. The fixing plate 242 is provided with a connecting groove, and the side opening of the connecting groove is provided with a pressing plate 244, and the molybdenum electrode 243 is fixedly connected to the connecting groove by the pressing plate 244. This facilitates the rapid replacement of the molybdenum electrode 243, minimizes the equipment downtime, and minimizes the impact on the equipment production efficiency.

[0058] The liftable upper electrode assembly 2 also includes a position detection assembly 25, which is used to detect the height position of the controlled lifting of the molybdenum electrode 243, thereby feeding back a control signal to the controller. The controller is an industrial computer or a PLC, which is used to control the overall operation process of the welding equipment according to preset logic.

[0059] See also Figures 9 to 18 , the above-mentioned welding positioning mechanism 3 comprises:

[0060] A support base 31, a lower electrode assembly 32, the lower electrode assembly 32 is connected to the support base 31; a left positioning assembly 33, the left positioning assembly 33 is connected to the support base 31 and is located on one side of the lower electrode assembly 32; and a right positioning assembly 34, the right positioning assembly 34 is connected to the support base 31 and is located on the other side of the lower electrode assembly 32 relative to the left positioning assembly 33;

[0061] Among them, the left positioning assembly 33 and the right positioning assembly 34 have the same structure and are symmetrically arranged with the lower electrode assembly 32. When the weld is positioned for welding, the left positioning assembly 33 and the right positioning assembly 34 move laterally to approach the electrode end of the lower electrode assembly 32 to clamp and position the weld.

[0062] Please refer again Figures 11 to 18 The left positioning assembly 33 and the right positioning assembly 34 have the same structure. Taking the left positioning assembly 33 as an example, it includes: a support plate 331, a driving device 333 connected to the support plate 331, a first guide unit 332, a second guide unit 334 and a movable positioning unit; the first guide unit 332, the second guide unit 334 and the movable positioning unit are linearly distributed in sequence toward the lower electrode assembly 32, the driving device 333 has a wedge 3332, and the wedge 3332 has a plane 33322 and an inclined surface 33321, and the inclined surface 33321 is arranged on the side of the wedge 3332 opposite to the plane 33322. The plane 33322 abuts against the first guide unit 332, the inclined surface 33321 abuts against the second guide unit 334, and the movable positioning unit is connected to the second guide unit 334; the driving device 333 drives the wedge 3332 to move telescopically, so that the inclined surface 33321 drives the second guide unit 334 abutting against it to move toward the lower electrode assembly 32, so as to synchronously drive the movable positioning unit to clamp or release the welding piece. The lower electrode assembly 32 includes the above-mentioned molybdenum electrode 321.

[0063] like Fig.11 As shown, the first guide unit 332 abuts against the plane 33322 of the wedge 3332, and the driving device 333 drives the wedge 3332 to move in a straight line. Therefore, the first guide unit 332 is used to abut against and limit the plane 33322 of the wedge 3332, so that the wedge 3332 can only move parallel to the telescopic direction of the driving device 333. The second guide unit 334 abuts against the inclined surface 33322 of the wedge 3332, and when the wedge 3332 moves, the second guide unit 334 is driven to move perpendicular to the moving direction of the driving device 333, thereby driving the mobile positioning unit to clamp and position the weldment. Since the left positioning assembly 33 adopts the combined transmission structure of the first guide unit 332, the second guide unit 334, the mobile positioning unit and the driving device 333, the driving device 333 does not need to use a large-sized cylinder, and its operation is more stable and reliable, the service life is longer, and the processing and maintenance costs are lower.

[0064] In one embodiment, each of the first guide unit 332 and the second guide unit 334 is provided with a roller 3343, and the inclined surface 33321 and the plane 33322 are respectively connected to the wheel surface of the roller 3343. The inclined surface 33321 and the plane 33322 with which the roller 3343 provided on the first guide unit 332 and the second guide unit 334 slides can reduce friction resistance, making the operation smoother and less abrasive.

[0065] When the wedge-shaped member 3332 is controlled by the driving device 333 to telescopically move, the plane 33322 always remains perpendicular to the moving direction of the mobile positioning unit. Under this angle setting, the resistance is minimal and the transmission distance is maximal.

[0066] In this embodiment, the first guide unit 332 and the second guide unit 334 have the same structure. Taking the second guide unit 334 as an example, it includes: a connecting member 3341, a rotating shaft 3342 connected to the connecting member 3341, and a roller 3343 rotatably connected to the rotating shaft 3342. The connecting member 3341 is connected to the support plate 331.

[0067] The connecting member 3341 is a C-shaped member, with an opening 33411 on one side, the rotating shaft 3342 is longitudinally connected to the opening, and the roller 3343 is passed through the rotating shaft 3342, so its rolling surface is in the vertical direction. The connecting member 3341 is connected to the top surface of the support plate 331 by screws.

[0068] In order to reduce the friction between the roller 3343 and the rotating shaft 3342 , at least one bearing 3344 is sleeved between the roller 3343 and the rotating shaft 3342 .

[0069] The mobile positioning unit includes: a guide unit 335 and a positioning unit 336. The guide unit 335 has a guide structure. The positioning unit 336 is inserted into the guide structure, and the end of the guide unit 335 is connected to the second guide unit 334. When the second guide unit 334 is moved by force, it drives the positioning unit 336 to move back and forth along the guide structure of the guide unit 335.

[0070] The guide unit 335 includes: a guide seat 3351 and a sealing plate 3352. The guide seat 3351 is provided with a guide groove 33511. The sealing plate 3352 is connected to the opening of the guide groove 33511 to form a guide structure with front and rear openings.

[0071] Among them, at least one connecting hole 33512 is also provided on the guide seat 3351 of the guide unit 335, and an elastic member 338 is inserted into the connecting hole 33512. One end of the elastic member 338 abuts against the second guide unit 334, so as to provide buffering between the second guide unit 334 and the movable positioning unit and drive the positioning unit 336 to reset after releasing the welding part.

[0072] like Fig.16As shown, the positioning unit 336 includes: a telescopic member 3364, a connection seat 3361 connected to the end of the telescopic member 3364, a positioning terminal 3363 fixed on the connection seat 3361, and the guide structure is a guide hole, and the telescopic member 3364 is inserted into the guide hole. Specifically, a connection groove is provided on the connection seat 3361, and the rear end portion of the positioning terminal 3363 is plugged into the connection groove and is pressed and locked by a locking plate 3362 connected to the top of the connection groove.

[0073] like Fig.15 As shown, the driving device 333 includes a driving cylinder 3331 , which is connected to the support plate 331 through a mounting plate 3333 , and a wedge 3332 is connected to the telescopic end of the driving cylinder 3331 .

[0074] Please refer again Fig.18 The support base is also provided with an adjusting member 337, and the adjusting member 337 includes: a connecting arm 3371 and an elastic member 3372 passing through the connecting arm 3371, one end of the elastic member 3372 abuts against the connecting seat 3361, and when the telescopic member 3364 is extended, its front end is supported by the adjusting member 337.

[0075] The welding positioning mechanism of this embodiment positions the weldment by means of a left positioning assembly and a right positioning assembly that are identical in structure and symmetrically arranged. The positioning assembly uses a small cylinder to drive a wedge, and the wedge drives the mobile positioning unit to move closer to or away from the welding electrode, thereby realizing the replacement of the large cylinder with the small cylinder and ensuring reliable positioning and clamping of large-sized workpieces. The processing and maintenance costs are lower, and the telescopic positioning action is more stable and reliable.

[0076] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A wire harness welding device, characterized in that: include: Electrode copper bar assembly, liftable upper electrode assembly and welding positioning mechanism; The welding positioning mechanism is also provided with a lower electrode assembly; The electrode copper bar assembly comprises: a wiring module, a positive copper bar and a negative copper bar electrically connected to the wiring module; The electrode copper busbar assembly supplies power to the liftable upper electrode assembly and the lower electrode assembly; the liftable upper electrode assembly and the lower electrode assembly are aligned with each other in the vertical direction, the welding positioning mechanism is provided with two relatively movable positioning terminals, the liftable upper electrode assembly and the lower electrode assembly are both provided with detachably connected molybdenum electrodes, and the molybdenum electrodes and the positioning terminals together form a positioning welding notch.

2. The wire harness welding equipment according to claim 1, characterized in that: The liftable upper electrode assembly comprises: A fixing module, a driving module connected to the fixing module, a connecting module connected to a driving end of the driving module, and an upper electrode module connected to the connecting module; The driving end of the driving module is passed through the fixing module, and the connecting module has a guide rod, which is also passed through the fixing module. The connecting module is also electrically connected to the electrode copper busbar assembly. The driving module drives the connecting module, and simultaneously drives the upper electrode module to rise and fall in the vertical direction guided by the fixing module, so as to approach or move away from the lower electrode assembly.

3. The wire harness welding equipment according to claim 2, characterized in that: The connecting module includes: a connecting plate, a connecting rod and the guide rod vertically connected to the top of the connecting plate, and an adjusting plate connected to the bottom of the connecting plate; at least one group of T-slots is also arranged on the connecting plate, and T-shaped pieces are arranged in the T-slots. The T-shaped pieces are connected to the adjusting plate by screws, so that the relative position between the adjusting plate and the connecting plate can be adjusted by adjusting the screws.

4. The wire harness welding equipment according to claim 3, characterized in that: The upper electrode module includes: a docking plate, a fixing plate connected to the bottom of the docking plate, and the molybdenum electrode detachably connected to the fixing plate; wherein, the docking plate is provided with a plurality of waist-shaped holes, and the docking plate is adjustably connected to the adjustment plate by screws passing through the waist-shaped holes; a connecting groove is provided on the fixing plate, and a pressure plate is provided at the side opening of the connecting groove, and the molybdenum electrode is fixedly connected to the connecting groove by the pressure plate.

5. The wire harness welding equipment according to any one of claims 2 to 4, characterized in that: The welding positioning mechanism comprises: a supporting base, a welding electrode assembly, the welding electrode assembly is connected to the supporting base; a left positioning assembly, the left positioning assembly is connected to the supporting base and is on one side of the welding electrode assembly; as well as a right positioning assembly, the right positioning assembly being connected to the support base and being located at the other side of the welding electrode assembly relative to the left positioning assembly; Among them, the left positioning assembly has the same structure as the right positioning assembly and is symmetrically arranged with the welding electrode assembly. When the weld is positioned for welding, the left positioning assembly and the right positioning assembly move laterally to approach the electrode end of the welding electrode assembly to clamp and position the weld.

6. The wire harness welding equipment according to claim 5, characterized in that: The left positioning assembly includes: a support plate, a driving device connected to the support plate, a first guide unit, a second guide unit and a movable positioning unit; the first guide unit, the second guide unit and the movable positioning unit are linearly distributed in sequence toward the welding electrode assembly, the driving device has a wedge, the wedge has a plane and an inclined surface, the inclined surface is arranged on the side of the wedge opposite to the plane, wherein the plane abuts against the first guide unit, the inclined surface abuts against the second guide unit, and the movable positioning unit is connected to the second guide unit; the driving device drives the wedge to telescopically move, so that the inclined surface drives the second guide unit abutting therewith to move toward the direction of the welding electrode assembly, so as to synchronously drive the movable positioning unit to clamp or release the welding part.

7. The wire harness welding equipment according to claim 6, characterized in that: The first guide unit and the second guide unit are each provided with a roller, and the inclined surface and the plane are respectively connected to the wheel surface of the roller.

8. The wire harness welding equipment according to claim 7, characterized in that: When the wedge-shaped member is controlled by the driving device to telescopically move, the plane always remains perpendicular to the moving direction of the mobile positioning unit.

9. The wire harness welding equipment according to claim 8, characterized in that: The first guide unit and the second guide unit have the same structure, and both include: a connecting member, a rotating shaft connected to the connecting member, and a roller rotatably connected to the rotating shaft, and the connecting member is connected to the support plate.

10. The wire harness welding device according to claim 9, characterized in that: The mobile positioning unit includes: a guide unit and a positioning unit, the guide unit has a guide structure, the positioning unit is inserted into the guide structure, and the end of the guide unit is connected to the second guide unit, the guide unit is also provided with at least one connecting hole, an elastic member is inserted into the connecting hole, one end of the elastic member abuts against the second guide unit, so as to provide a buffer between the second guide unit and the mobile positioning unit, the positioning unit includes: a telescopic member, a connecting seat connected to the end of the telescopic member, and a positioning terminal fixed on the connecting seat, the guide structure is a guide hole, and the telescopic member is inserted into the guide hole.

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