Copper wire pressure welding forming mechanism

Abstract

The utility model provides a copper wire pressure welding forming mechanism, which relates to the technical field of new energy and low-voltage electric appliances and comprises a base, and a first pressure welding mechanism, a second pressure welding mechanism, an upper pressure welding mechanism and a lower pressure welding mechanism which are arranged on the base, the first pressure welding mechanism, the upper pressure welding mechanism, the second pressure welding mechanism and the lower pressure welding mechanism are arranged corresponding to the four orthogonal side faces of a cube correspondingly, and the pressure welding faces of the pressure welding mechanisms can sequentially abut against one another to define a square pressure welding space with the four faces closed. Through the synergistic effect of the first pressure welding mechanism, the second pressure welding mechanism, the upper pressure welding mechanism and the lower pressure welding mechanism, the pressure welding surfaces of the four pressure welding mechanisms can sequentially abut against one another to define a square pressure welding space with four closed surfaces, and balanced and stable vertical welding pressure is synchronously applied to a copper wire; therefore, the copper wire can form a flat square pressure welding surface, the R angle welding defect is effectively avoided, the conductive area is greatly improved, and the stability, the reliability and the conductive performance of subsequent connection are ensured.

Description

Technical Field

[0001] The utility model relates to the technical fields of new energy and low-voltage electrical appliances, in particular to a copper wire pressure welding forming mechanism. Background Art

[0002] In the new energy and low-voltage electrical appliance industries, copper wires are widely used. Since copper wires are usually composed of multiple fine copper wires stranded together, when a copper wire is connected to other components, it is likely to spread due to loose structure, which will affect the connection stability, reliability and electrical conductivity. Therefore, generally, a welding device is used to press-weld the copper wires to form a cube structure to improve the connection stability, reliability and electrical conductivity.

[0003] The applicant of the present invention has found that the prior art has at least the following technical problems:

[0004] The design of the current welding device has defects. As Figure 4 shown, most of them adopt the matching structure of the upper pole pressing block 25 and the lower pole groove 24. The copper wire 23 is placed in the lower pole groove 24, and the driving mechanism drives the upper pole pressing block 25 to move downward to complete the pressure welding of the copper wire 23. However, due to the sliding gap between the upper pole pressing block 25 and the lower pole groove 24, when the upper pole pressing block 24 presses down, the corners of the copper wire 23 are subjected to lateral extrusion rather than vertical pressure, resulting in R-angle welding defects 231 at the four corners of the copper wire 23, that is, defects such as rounded corners, unevenness or burrs, which reduce the effective conductive area and affect the connection stability, reliability and electrical conductivity.

[0005] In view of this, the present invention is specifically proposed. Content of the Utility Model

[0006] The purpose of the present invention is to provide a copper wire pressure welding forming mechanism to solve the technical problems existing in the prior art that the design of the current welding device has defects, there is a sliding gap between the upper electrode assembly and the lower electrode assembly groove, resulting in R-angle welding defects at the four corners of the copper wire after pressure welding, reducing the effective conductive area and affecting the connection stability, reliability and electrical conductivity. The preferred technical solutions provided by the present invention can produce many technical effects, which will be elaborated below.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A copper wire pressure welding forming mechanism provided by the present invention includes a base, and a first pressure welding mechanism, a second pressure welding mechanism, an upper pressure welding mechanism and a lower pressure welding mechanism arranged on the base; the first pressure welding mechanism, the upper pressure welding mechanism, the second pressure welding mechanism and the lower pressure welding mechanism are respectively arranged corresponding to four orthogonal side faces of a cube, and their pressure welding surfaces can sequentially abut and enclose to form a four-sided closed square pressure welding space.

[0009] Preferably, the down-pressure welding mechanism includes a lower electrode and a lower fixture. The lower electrode is connected to the base through the lower fixture and is used to place the copper wire to be pressure-welded.

[0010] Preferably, the up-pressure welding mechanism includes an upper electrode, an upper fixture, and an upper driving component. The upper driving component is connected to the upper electrode through the upper fixture to drive the upper electrode to move towards or away from the lower electrode.

[0011] Preferably, the first pressure-welding mechanism includes a first electrode, a first fixture, a first driving part, and a first guiding part. The first guiding part includes a first slide rail, a first slider slidably engaged with the first slide rail, and a first reset member disposed between the first slide rail and the first slider. The first electrode is connected to the first slider through the first fixture, and the driving end of the first driving part is connected to the first slider to drive the first electrode to move towards or away from the lower electrode.

[0012] Preferably, the second pressure-welding mechanism includes a second electrode, a second fixture, a second driving part, a second guiding part, and a floating part:

[0013] The second guiding part includes a second slide rail, a second slider slidably engaged with the second slide rail, and a second reset member disposed between the second slide rail and the second slider;

[0014] The floating part includes a floating slide rail, a floating slider slidably engaged with the floating slide rail, and a floating reset member disposed between the floating slide rail and the floating slider. The second electrode is connected to the floating slider through the second fixture, and the floating slide rail is connected to the second slider; the driving end of the second driving part is connected to the second slider to drive the second electrode to move towards or away from the lower electrode.

[0015] Preferably, the first driving part and the second driving part have the same structure, including a linear driving member, a trapezoidal push plate, a first cam member, and a second cam member. The first cam member is disposed on the base, the second cam member is connected to the first slider or the second slider, a moving channel is formed between the first cam member and the second cam member, and the linear driving member drives the trapezoidal push plate to reciprocate along the moving channel to drive the second cam member to drive the first slider or the second slider to move on the first slide rail or the second slide rail.

[0016] Preferably, the pressure-welding surfaces of the first electrode, the upper electrode, the second electrode, and the lower electrode can be sequentially abutted and enclosed to form a cubic pressure-welding space that is closed on four sides and open at both ends.

[0017] Preferably, a limiting mechanism is further included. The limiting mechanism includes a limiting plate and a limiting support. The limiting plate is adjustably arranged on the limiting support and is used to close an opening end of the pressure welding space.

[0018] The preferred technical solution of the present utility model can at least further produce the following technical effects:

[0019] The present utility model effectively avoids the technical problems existing in the design of current welding equipment, that is, there is a sliding gap between the upper electrode assembly and the lower electrode assembly groove, resulting in R - angle welding defects at the four corners of the copper wire after pressure welding, causing a reduction in the effective conductive area and affecting the stability, reliability, and conductive performance of the connection. The present utility model provides a copper - wire pressure - welding forming mechanism, which includes a base, and a first pressure - welding mechanism, a second pressure - welding mechanism, an upper pressure - welding mechanism, and a lower pressure - welding mechanism arranged on the base; the first pressure - welding mechanism, the upper pressure - welding mechanism, the second pressure - welding mechanism, and the lower pressure - welding mechanism are respectively arranged corresponding to the four orthogonal side faces of a cube, and their pressure - welding surfaces can sequentially abut and enclose to form a four - sided closed square pressure - welding space. Through the synergistic effect of the first pressure - welding mechanism, the second pressure - welding mechanism, the upper pressure - welding mechanism, and the lower pressure - welding mechanism, the pressure - welding surfaces of the four pressure - welding mechanisms can sequentially abut and enclose to form a four - sided closed square pressure - welding space, synchronously applying balanced and stable vertical welding pressure to the copper wire, so that the copper wire can form a flat square pressure - welding surface, effectively avoiding R - angle welding defects, greatly increasing the conductive area, and ensuring the stability, reliability, and conductive performance of subsequent connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a copper - wire pressure - welding forming mechanism provided by the present utility model;

[0022] Figure 2 is a schematic structural diagram of another perspective of a copper - wire pressure - welding forming mechanism provided by the present utility model;

[0023] Figure 3 is a schematic diagram of copper - wire pressure - welding forming of a copper - wire pressure - welding forming mechanism provided by the present utility model;

[0024] Figure 4 is a schematic diagram of copper - wire pressure - welding forming in the prior art.

[0025] In the figure:

[0026] 1. Base; 2. First electrode; 3. First fixture; 4. First slide rail; 5. First slider; 6. Linear drive member; 7. Trapezoidal push plate; 8. First cam member; 9. Second cam member; 10. Second electrode; 11. Second fixture; 12. Second slide rail; 13. Second slider; 14. Floating slide rail; 15. Floating slider; 16. Upper electrode; 17. Upper fixture; 18. Lower electrode; 19. Lower fixture; 20. Limit plate; 21. Limit support; 211. Chute; 22. Friction protrusion; 23. Copper wire; 231. R - corner welding defect; 24. Lower - pole groove; 25. Upper - pole pressing block. Detailed implementation mode

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0028] As Figures 1 - 3 shown, the present utility model provides a copper - wire 23 pressure - welding forming mechanism, which includes a base 1, and a first pressure - welding mechanism, a second pressure - welding mechanism, an upper pressure - welding mechanism and a lower pressure - welding mechanism arranged on the base 1; the first pressure - welding mechanism, the upper pressure - welding mechanism, the second pressure - welding mechanism and the lower pressure - welding mechanism are respectively arranged corresponding to four orthogonal side faces of a cube, and their pressure - welding surfaces can be sequentially abutted and enclosed to form a four - sided closed square pressure - welding space.

[0029] Through the synergistic effect of the first pressure - welding mechanism, the second pressure - welding mechanism, the upper pressure - welding mechanism and the lower pressure - welding mechanism, the pressure - welding surfaces of the four pressure - welding mechanisms can be sequentially abutted and enclosed to form a four - sided closed square pressure - welding space, synchronously applying balanced and stable vertical welding pressure to the copper wire 23, so that the copper wire 23 can form a flat square pressure - welding surface, effectively avoiding R - corner welding defects, greatly improving the conductive area, and ensuring the stability, reliability and conductive performance of subsequent connections.

[0030] As an optional implementation manner, the lower pressure - welding mechanism includes a lower electrode 18 and a lower fixture 19. The lower electrode 18 is connected to the base 1 through the lower fixture 19 and is used for placing the copper wire to be pressure - welded.

[0031] Furthermore, friction protrusions 22 are arranged on the clamping surface of the lower fixture 19 to increase the clamping stability and prevent the lower electrode 18 from sliding or shifting during the pressure - welding process.

[0032] As an optional implementation manner, the upper pressure welding mechanism includes an upper electrode 16, an upper fixture 17 and an upper driving component. The upper driving component is connected to the upper electrode 16 through the upper fixture 17 to drive the upper electrode 16 to move towards or away from the lower electrode 18.

[0033] Furthermore, friction protrusions 22 are provided on the clamping surface of the upper fixture 17 to increase the clamping stability and prevent the upper electrode 16 from sliding or shifting during the pressure welding process.

[0034] The upper driving component adopts a conventional power source such as a cylinder in the prior art, as long as it can drive the upper electrode 16 to perform a reciprocating linear motion.

[0035] As an optional implementation manner, the first pressure welding mechanism includes a first electrode 2, a first fixture 3, a first driving part and a first guiding part. The first guiding part includes a first slide rail 4, a first slider 5 slidably matched with the first slide rail 4, and a first reset member provided between the first slide rail 4 and the first slider 5. The first electrode 2 is connected to the first slider 5 through the first fixture 3, and the driving end of the first driving part is connected to the first slider 5 to drive the first electrode 2 to move towards or away from the lower electrode 18.

[0036] Furthermore, the first reset member includes a conventional reset structure such as a spring in the prior art, as long as it can drive the first slider 5 to drive the first electrode 2 to return to the initial position by the potential energy stored in it after each pressure welding operation and wait for the next welding operation.

[0037] Through the sliding fit of the first slide rail 4 and the first slider 5, the stability and accuracy of the movement process of the first electrode 2 are ensured.

[0038] The first driving part drives the first slider 5 to move along the first slide rail 4, driving the first electrode 2 to move towards the lower electrode 18 until it abuts against the lower electrode 18. At this time, the first reset member is in a compressed state.

[0039] As an optional implementation manner, the second pressure welding mechanism includes a second electrode 10, a second fixture 11, a second driving part, a second guiding part and a floating part: The second guiding part includes a second slide rail 12, a second slider 13 slidably matched with the second slide rail 12, and a second reset member provided between the second slide rail 12 and the second slider 13; The floating part includes a floating slide rail 14, a floating slider 15 slidably matched with the floating slide rail 14, and a floating reset member provided between the floating slide rail 14 and the floating slider 15. The second electrode 10 is connected to the floating slider 15 through the second fixture 11, and the floating slide rail 14 is connected to the second slider 13; The driving end of the second driving part is connected to the second slider 13 to drive the second electrode 10 to move towards or away from the lower electrode 18.

[0040] Further, the second reset member includes a conventional reset structure such as a spring in the prior art. As long as it can achieve that after each resistance welding operation is completed, the second reset member drives the second slider 13 to drive the second electrode 10 back to the initial position by the potential energy stored therein, waiting for the next welding operation.

[0041] Similarly, the floating reset member includes a conventional reset structure such as a spring in the prior art. As long as it can achieve that after the upper electrode 16 releases the acting force on the second electrode 10, the floating reset member drives the floating slider 15 to drive the second electrode 10 back to the initial position by the potential energy stored therein, waiting for the next welding operation.

[0042] Through the sliding fit of the second slide rail 12 and the second slider 13 as well as the floating slide rail 14 and the floating slider 15, the stability and accuracy of the moving process of the second electrode 10 are ensured.

[0043] The second driving part drives the second slider 13 to move along the second slide rail 12, driving the second electrode 10 to move towards the lower electrode 18 until it abuts against the lower electrode 18. At this time, the second reset member is in a compressed state.

[0044] Then, when the upper electrode 16 moves downward, it can apply a downward acting force on the second electrode 10, driving the floating slider 15 to move downward along the floating slide rail 14, so that the second electrode 10 performs a fine adjustment in position and more precisely abuts against the upper electrode 16 and the lower electrode 18 simultaneously. At this time, the floating reset member is in a compressed state.

[0045] As an optional implementation manner, the structures of the first driving part and the second driving part are the same, including a linear driving member 6, a trapezoidal push plate 7, a first cam member 8 and a second cam member 9. The first cam member 8 is arranged on the base 1, the second cam member 9 is connected to the first slider 5 or the second slider 13, a moving channel is formed between the first cam member 8 and the second cam member 9, and the linear driving member 6 drives the trapezoidal push plate 7 to reciprocate along the moving channel to drive the second cam member 9 to drive the first slider 5 or the second slider 13 to move on the first slide rail 4 or the second slide rail 12.

[0046] Further, the trapezoidal push plate 7 is of a right trapezoidal structure, and its hypotenuse is arranged close to the second cam member 9.

[0047] The linear driving member 6 adopts a conventional power source such as a cylinder in the prior art. As long as it can achieve driving the trapezoidal push plate 7 to perform a reciprocating linear motion.

[0048] Taking the first driving part as an example, the working principle is explained as follows:

[0049] When the linear driving member 6 is not started, the trapezoidal push plate 7 is at the starting end of the moving channel, and the second cam member 9 is not in contact with the trapezoidal push plate 7.

[0050] When the first electrode 2 needs to be moved, the linear drive 6 drives the trapezoidal push plate 7 to move along the moving channel towards the second cam member 9 until the inclined surface of the trapezoidal push plate 7 contacts the second cam member 9 and applies a thrust force, driving the second cam member 9 to drive the first electrode 2 to move downward along the first slide rail 4 towards the lower electrode 18 until it abuts against the lower electrode 18. At this time, the first reset member is in a compressed state.

[0051] After the welding operation is completed, the linear drive 6 drives the trapezoidal push plate 7 to reset, releasing the force on the second cam member 9. The first reset member drives the first slider 5 to drive the first electrode 2 back to the initial position by the potential energy stored in it, waiting for the next welding operation.

[0052] Since the structure of the second drive part is the same as that of the first drive part, the principle of the first drive part also applies to the second drive part. The operation process of the second electrode 10 will not be elaborated here.

[0053] As an alternative embodiment, the welding surfaces of the first electrode 2, the upper electrode 16, the second electrode 10, and the lower electrode 18 can be sequentially abutted and enclosed to form a cubic welding space that is closed on four sides and open at both ends. Moreover, the welding surfaces of the first electrode 2, the upper electrode 16, the second electrode 10, and the lower electrode 18 are all flat surfaces. Such a setting can synchronously apply balanced and stable vertical welding pressure to the copper wire 23, enabling the copper wire 23 to form a flat square welding surface, effectively avoiding R-angle welding defects, greatly increasing the conductive area, and ensuring the stability, reliability, and electrical conductivity of subsequent connections.

[0054] As an alternative embodiment, a limiting mechanism is further included. The limiting mechanism includes a limiting plate 20 and a limiting support 21. The limiting plate 20 is adjustably arranged on the limiting support 21 and is used to close one open end of the welding space.

[0055] Furthermore, a sliding groove 211 is provided on the limiting support 21, and the limiting plate 20 is slidably arranged in the sliding groove 211 and can approach or move away from the lower electrode 18 to close or open one open end of the welding space.

[0056] By closing the open end of the welding space with the limiting plate 20, a relatively closed welding working environment is formed.

[0057] It should be noted that the first drive part, the second drive part, and the upper drive assembly are respectively electrically connected to the control system. The specific circuit connection relationship is prior art and will not be elaborated here.

[0058] The working principle of the present utility model is as follows:

[0059] S1: Place the copper wire 23 to be pressure-welded on the welding surface of the lower electrode 18;

[0060] S2: The control system activates the first driving part to drive the first slider 5 to move along the first slide rail 4, driving the first electrode 2 to move towards the lower electrode 18;

[0061] S3: The control system activates the upper driving assembly to drive the upper electrode 16 to move downward. First, it contacts the second electrode 10 and continues to apply downward pressure, driving the second electrode 10 to be finely adjusted along the floating slide rail 14 under the pressure of the upper electrode 16;

[0062] S4: The control system activates the second driving part to drive the second slider 13 to move along the second slide rail 12, driving the second electrode 10 to move towards the lower electrode 18; At this time, the control system controls the welding surfaces of the first electrode 2, the second electrode 10, the upper electrode 16, and the lower electrode 18 to abut almost simultaneously, forming a square welding space enclosed on all four sides, and at the same time and uniformly applying a vertical welding pressure to the copper wire 23 to complete the welding operation;

[0063] S5: After the welding is completed, the upper driving assembly drives the upper electrode 16 to rise and reset. At the same time, the first reset part, the second reset part, and the floating reset part release the potential energy stored in them, respectively driving the first electrode 2 and the second electrode 10 back to their initial positions, waiting for the next welding operation.

[0064] It can be understood that the same or similar parts in the above embodiments can be referred to each other. For the content not detailed in some embodiments, reference can be made to the same or similar content in other embodiments.

[0065] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0066] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "an example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0068] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A copper wire pressure welding forming mechanism, characterized in that: It includes a base, and a first pressure welding mechanism, a second pressure welding mechanism, an upper pressure welding mechanism and a lower pressure welding mechanism arranged on the base; the first pressure welding mechanism, the upper pressure welding mechanism, the second pressure welding mechanism and the lower pressure welding mechanism are arranged respectively corresponding to the four orthogonal sides of the cube, and their pressure welding surfaces can be abutted and enclosed in sequence to form a square pressure welding space closed on four sides.

2. A copper wire pressure welding forming mechanism according to claim 1, characterized in that: The lower pressure welding mechanism comprises a lower electrode and a lower clamp, and the lower electrode is connected to the base through the lower clamp and is used for placing the copper wire to be pressure welded.

3. A copper wire pressure welding forming mechanism according to claim 2, characterized in that: The upper pressure welding mechanism comprises an upper electrode, an upper clamp and an upper driving assembly. The upper driving assembly is connected to the upper electrode through the upper clamp to drive the upper electrode to move toward or away from the lower electrode.

4. A copper wire pressure welding forming mechanism according to claim 3, characterized in that: The first pressure welding mechanism includes a first electrode, a first clamp, a first driving part and a first guide part, the first guide part includes a first slide rail, a first slider slidably matched with the first slide rail and a first reset member arranged between the first slide rail and the first slider, the first electrode is connected to the first slider through the first clamp, and the driving end of the first driving part is connected to the first slider to drive the first electrode to move toward or away from the lower electrode.

5. A copper wire pressure welding forming mechanism according to claim 4, characterized in that: The second pressure welding mechanism includes a second electrode, a second clamp, a second driving part, a second guide part and a floating part. The second guide part includes a second slide rail, a second slider slidably matched with the second slide rail, and a second reset member arranged between the second slide rail and the second slider; the floating part includes a floating slide rail, a floating slider slidably matched with the floating slide rail, and a floating reset member arranged between the floating slide rail and the floating slider. The second electrode is connected to the floating slider through the second clamp, and the floating slide rail is connected to the second slider; the driving end of the second driving part is connected to the second slider to drive the second electrode to move toward or away from the lower electrode.

6. A copper wire pressure welding forming mechanism according to claim 5, characterized in that: The first driving part and the second driving part have the same structure, including a linear driving member, a trapezoidal push plate, a first cam member and a second cam member, the first cam member is arranged on the base, the second cam member is connected to the first slider or the second slider, a moving channel is formed between the first cam member and the second cam member, and the linear driving member drives the trapezoidal push plate to reciprocate along the moving channel to drive the second cam member to drive the first slider or the second slider to move on the first slide rail or the second slide rail.

7. A copper wire pressure welding forming mechanism according to claim 6, characterized in that: The pressure welding surfaces of the first electrode, the upper electrode, the second electrode and the lower electrode can be abutted and enclosed in sequence to form a cubic pressure welding space which is closed on four sides and open at two ends.

8. A copper wire pressure welding forming mechanism according to claim 6, characterized in that: It also includes a limiting mechanism, which includes a limiting plate and a limiting support. The limiting plate is adjustably arranged on the limiting support to close an open end of the pressure welding space.

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