Cold riveting device

Abstract

The utility model relates to the field of new energy automobiles, in particular to a cold riveting device which comprises a machine table, a supporting frame arranged on the machine table, a lower die assembly arranged on the machine table, a driving mechanism arranged on the supporting frame and an upper die assembly connected with the driving mechanism. The upper die assembly comprises an upper die body connected with the driving mechanism, a first adapter and a second adapter, wherein the first adapter and the second adapter are connected with the upper die body, and a first flow channel, a second flow channel and a first communication channel are arranged in the upper die body. According to the utility model, the upper die assembly and the lower die assembly are arranged, the upper die body of the upper die assembly and the lower die body of the lower die assembly are both provided with the flow channels capable of introducing circulating cooling liquid, and when the upper die body and the lower die body tightly press the new energy automobile wire, the insulating layer of the wire is flattened and is rapidly cooled at the same time; therefore, the insulation layer, the mica tape and the conductor are connected more tightly, the insulation layer is prevented from wrinkling, the product quality is ensured, the yield is improved, frequent reworking is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a cold riveting device. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new vehicle power devices), integrate advanced technologies in vehicle power control and drive, and form vehicles with advanced technical principles, new technologies, and new structures. Common new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. In new energy vehicles with electric drive, electric energy is required, which is provided by the range extender or battery, so wires are required to transmit electric energy. Considering the spatial layout design inside the car, flat wires will be used. In order to adapt to the internal space of new energy vehicles and to reasonably wire them, the wires need to be bent into specific shapes according to the specific use position during the production process to adapt to different layout designs. The conductor of the wire is coated with an insulating layer on the outside. According to different design requirements, some wires need to be wrapped with a mica layer before being covered with an insulating layer. During the bending process, the insulating layer is prone to wrinkling at the bend due to the presence of a mica tape layer between the conductor and the insulating layer. At this time, the wire needs to be heated to soften the insulating layer and flatten the insulating layer. After flattening, the wire needs to be cooled. The traditional method is to use natural cooling or air cooling. However, in this way, after cooling, the insulating layer of the winding is prone to return to a wrinkled state, and frequent rework is required for reprocessing. The operation is cumbersome and inefficient, which invisibly increases production costs. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a cold riveting device, which can maintain pressure and cool the wires of new energy vehicles to avoid wrinkling of the insulation layer of the wires.

[0004] The utility model is implemented by the following scheme:

[0005] A cold riveting device includes a machine, a support frame arranged on the machine, a lower mold assembly arranged on the machine, a driving mechanism arranged on the support frame, and an upper mold assembly connected to the driving mechanism, wherein the position of the upper mold assembly corresponds to the position of the lower mold assembly, and the driving mechanism drives the upper mold assembly to move toward the lower mold assembly; the upper mold assembly includes an upper mold body connected to the driving mechanism, and a first adapter and a second adapter connected to the upper mold body, a first flow channel, a second flow channel, and a first connecting channel for connecting the first flow channel and the second flow channel are arranged inside the upper mold body, the first adapter is connected to the first flow channel, and the second adapter is connected to the second flow channel.

[0006] Furthermore, the lower mold assembly includes a lower mold base arranged on the machine platform, a lower mold body arranged on the lower mold base, a third adapter and a fourth adapter connected to the lower mold body, a third flow channel, a fourth flow channel, and a second connecting channel for connecting the third flow channel and the fourth flow channel are arranged inside the lower mold body, the third adapter is connected to the third flow channel, and the fourth adapter is connected to the fourth flow channel.

[0007] Furthermore, the lower mold body is provided with a concave portion matching the shape of the wire, and the bottom shape of the upper mold body matches the concave portion.

[0008] Furthermore, a first stopper is provided on the side of the upper mold body, and a second stopper matching the first stopper is provided on the lower mold body.

[0009] Furthermore, a first inclined surface is provided on a side of the first stopper facing the second stopper, and a second inclined surface matching the first inclined surface is provided on a side of the second stopper facing the first stopper.

[0010] Furthermore, the driving mechanism includes a vertical driving member arranged on the supporting frame, and a lifting plate connected to the vertical driving member.

[0011] Furthermore, a guide assembly is also provided on the platform, and the guide assembly includes a plurality of guide rods vertically provided on the platform, and the lifting plate is connected to the guide rods via guide sleeves.

[0012] Furthermore, the guide rod is sleeved with a ball sleeve matching the guide sleeve.

[0013] Furthermore, a positioning piece is provided on the top edge of the lower mold body.

[0014] Furthermore, the machine is provided with an operation panel and function buttons.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is provided with an upper mold assembly and a lower mold assembly, and the upper mold body of the upper mold assembly and the lower mold body of the lower mold assembly are both provided with flow channels for passing circulating coolant. When the upper mold body and the lower mold body press the new energy vehicle wire, the insulation layer of the wire is flattened and quickly cooled down, thereby ensuring that the insulation layer, the mica tape and the conductor are connected more closely, avoiding wrinkling of the insulation layer, ensuring product quality, improving the yield rate, and avoiding frequent rework, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The utility model provides a schematic structural diagram of a cold riveting device.

[0018] Figure 2 This is a schematic diagram of the utility model from another angle.

[0019] Figure 3 It is a schematic diagram of the upper mold assembly and the lower mold assembly of the utility model.

[0020] Figure 4 It is a schematic diagram of the first stopper and the second stopper of the utility model.

[0021] Included in the picture are:

[0022] Machine 1, support frame 11, operation panel 12, function button 13, lower mold assembly 2, lower mold base 21, lower mold body 22, third adapter 23, fourth adapter 24, third flow channel 25, fourth flow channel 26, second connecting channel 27, lower recess 28, second stopper 29, second inclined surface 291, drive mechanism 3, vertical drive member 31, lifting plate 32, upper mold assembly 4, upper mold body 41, first adapter 42, second adapter 43, first flow channel 44, second flow channel 45, first connecting channel 46, first stopper 47, first inclined surface 471, guide assembly 5, guide rod 51, guide sleeve 52, ball sleeve 53, positioning member 6. DETAILED DESCRIPTION

[0023] In order to facilitate those skilled in the art to understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and drawings. Example 1

[0024] Reference Figures 1 to 4 The utility model provides a cold riveting device, comprising a machine 1, a support frame 11 arranged on the machine 1, a lower die assembly 2 arranged on the machine 1, a driving mechanism 3 arranged on the support frame 11, and an upper die assembly 4 connected to the driving mechanism 3, wherein the position of the upper die assembly 4 corresponds to the position of the lower die assembly 2, and the driving mechanism 3 drives the upper die assembly 4 to move toward the lower die assembly 2. During operation, the wires of the new energy vehicle are placed on the lower die assembly 2, and the driving mechanism 3 drives the upper die assembly 4 to move downward to press the wires.

[0025] The upper mold assembly 4 includes an upper mold body 41 connected to the driving mechanism 3, and a first adapter 42 and a second adapter 43 connected to the upper mold body 41. The upper mold body 41 is provided with a first flow channel 44, a second flow channel 45, and a first connecting channel 46 for connecting the first flow channel 44 and the second flow channel 45. The first adapter 42 is connected to the first flow channel 44, and the second adapter 43 is connected to the second flow channel 45. In this embodiment, the first connecting channel is generally V-shaped, and the first flow channel 44 and the second flow channel 45 are each provided with a, defining Figure 1 The lower left side is the front side, the first flow channel 44 and the second flow channel 45 are both arranged along the front-to-back direction, the first adapter 42 and the second adapter 43 are connected to the rear side of the upper mold body 41, and the first connecting channel 46 is arranged near the front side. For the convenience of processing, the first flow channel 44 and the second flow channel 45 are in the form of penetrating the front and rear end surfaces of the upper mold body 41, so it is necessary to install a sealing plate on the front side of the upper mold body 41 to form a closed loop inside. In specific implementation, the first adapter 42 and the second adapter 43 need to be connected to a circulating heat dissipation device pre-installed with coolant, the first adapter 42 is used for liquid inlet, and the second adapter 43 is used for liquid return (or vice versa), the coolant takes away heat after passing through the upper mold body 41, so that the upper mold body 41 is cooled down, and then the coolant returns to the circulating heat dissipation device to dissipate heat and is then transported to the upper mold body 41 to ensure that the upper mold body 41 is in a low temperature state.

[0026] The lower mold assembly 2 includes a lower mold base 21 disposed on the machine 1, a lower mold body 22 disposed on the lower mold base 21, a third adapter 23 and a fourth adapter 24 connected to the lower mold body 22, a third flow channel 25, a fourth flow channel 26, and a second connecting channel 27 for connecting the third flow channel 25 and the fourth flow channel 26 are disposed inside the lower mold body 22, the third adapter 23 is connected to the third flow channel 25, and the fourth adapter 24 is connected to the fourth flow channel 26. In this embodiment, the second connecting channel is generally V-shaped, and the third flow channel 25 and the fourth flow channel 26 are each provided with one, and the third flow channel 25 and the fourth flow channel 26 are both disposed in the front-to-back direction, and the third adapter 23 and the fourth adapter 24 are connected to the rear side of the upper mold body 41. For ease of processing, the first flow channel 44 and the second flow channel 45 are in the form of penetrating the front and rear end surfaces of the upper mold body 41, so it is necessary to install a sealing plate on the front side of the upper mold body 41 to form a closed circuit inside. During specific implementation, the third adapter 23 and the fourth adapter 24 need to be connected to a circulating heat dissipation device pre-installed with coolant. The coolant takes away the heat after passing through the lower mold body 22, thereby cooling the lower mold body 22. After that, the coolant returns to the circulating heat dissipation device to dissipate heat and is then transported to the lower mold body 22 to ensure that the lower mold body 22 is in a low temperature state.

[0027] The lower mold body 22 is provided with a lower concave portion 28 matching the shape of the wire, and the bottom shape of the upper mold body 41 matches the lower concave portion 28. In this embodiment, the cross-section of the lower concave portion 28 is generally an acute triangle, which can cope with the cold riveting operation of the wire bent at this angle. In specific implementation, the upper mold body 41 and the lower mold body 22 can be replaced according to the specific specifications of the wire to be processed.

[0028] The side of the upper mold body 41 is provided with a first stopper 47, and the lower mold body 22 is provided with a second stopper 29 matching the first stopper 47. The cooperation between the first stopper 47 and the second stopper 29 can clamp the wire when the upper mold body 41 is pressed down. The positions of the first stopper 47 and the second stopper 29 can be adaptively set according to the specific specifications of the wire to be processed.

[0029] The first stopper 47 is provided with a first inclined surface 471 on one side facing the second stopper 29, and the second stopper 29 is provided with a second inclined surface 291 matching the first inclined surface 471 on one side facing the first stopper 47. The first inclined surface 471 and the second inclined surface 291 can match the shape of the wire and sandwich the wire in the middle. In specific implementation, the specific shapes of the first stopper 47 and the second stopper 29 can be adaptively set according to the specific specifications of the wire to be processed.

[0030] The driving mechanism 3 includes a vertical driving member 31 disposed on the support frame 11, and a lifting plate 32 connected to the vertical driving member 31. In this embodiment, the vertical driving member 31 is a cylinder.

[0031] The platform 1 is also provided with a guide assembly 5 , which includes a plurality of guide rods 51 vertically provided on the platform 1 , and the lifting plate 32 is connected to the guide rods 51 via guide sleeves 52 .

[0032] The guide rod 51 is sleeved with a ball sleeve 53 that matches the guide sleeve 52. The ball sleeve 53 can reduce the contact surface with the guide sleeve 52, making the entire moving process more stable and rapid.

[0033] The top edge of the lower mold body 22 is provided with a positioning member 6. The positioning member 6 can be used to position the wire to ensure that the wire is placed in a predetermined position.

[0034] The machine 1 is provided with an operation panel 12 and a function button 13. The operation panel 12 can set various parameters during riveting, and the function button 13 includes a power button, a start button or a stop button.

[0035] In specific use, firstly, the matching upper mold body 41 and lower mold body 22 are selected according to the specifications of the wire to be processed. The wire to be cold-riveted is placed in the inner concave part of the lower mold body 22, and the driving mechanism 3 drives the upper mold assembly 4 to press down. The upper mold body 41 and the lower mold body 22 cooperate to press the wire tightly, and the wire is quickly cooled down, so that the insulation layer of the wire is kept in close contact with the mica tape layer to achieve cooling. After the wire is fully cooled, the insulation layer becomes flat, avoiding the situation that the insulation layer is wrinkled. Example 2

[0036] This embodiment provides a cold riveting device, including a machine 1, a support frame 11 arranged on the machine 1, a lower die assembly 2 arranged on the machine 1, a driving mechanism 3 arranged on the support frame 11, and an upper die assembly 4 connected to the driving mechanism 3, wherein the position of the upper die assembly 4 corresponds to the position of the lower die assembly 2, and the driving mechanism 3 drives the upper die assembly 4 to move toward the lower die assembly 2. During operation, the wires of the new energy vehicle are placed on the lower die assembly 2, and the driving mechanism 3 drives the upper die assembly 4 to move downward to press the wires.

[0037] The upper mold assembly 4 includes an upper mold body 41 connected to the driving mechanism 3, and a first adapter 42 and a second adapter 43 connected to the upper mold body 41. The upper mold body 41 is provided with a first flow channel 44, a second flow channel 45, and a first connecting channel 46 for connecting the first flow channel 44 and the second flow channel 45. The first adapter 42 is connected to the first flow channel 44, and the second adapter 43 is connected to the second flow channel 45. In this embodiment, the number and position of the first flow channel 44 and the second flow channel 45 are adaptively set according to actual cooling requirements. The first flow channel 44 and the second flow channel 45 can be straight channels, or flow channels of other shapes such as S-shaped channels. During specific implementation, the first adapter 42 and the second adapter 43 need to be connected to a circulating heat dissipation device pre-installed with coolant. The first adapter 42 is used for liquid inlet, and the second adapter 43 is used for liquid return (or vice versa). The coolant passes through the upper mold body 41 and takes away heat to cool the upper mold body 41. After that, the coolant returns to the circulating heat dissipation device to dissipate heat and is then transported to the upper mold body 41 to ensure that the upper mold body 41 is in a low temperature state.

[0038] The lower mold assembly 2 includes a lower mold base 21 disposed on the machine 1, a lower mold body 22 disposed on the lower mold base 21, a third adapter 23 and a fourth adapter 24 connected to the lower mold body 22, a third flow channel 25, a fourth flow channel 26, and a second connecting channel 27 for connecting the third flow channel 25 and the fourth flow channel 26 are disposed inside the lower mold body 22, the third adapter 23 is connected to the third flow channel 25, and the fourth adapter 24 is connected to the fourth flow channel 26. In this embodiment, the number and position of the third flow channel 25 and the fourth flow channel 26 are adaptively set according to actual cooling requirements, and the first flow channel 44 and the second flow channel 45 can be straight channels, or flow channels of other shapes such as S-shaped can be used. During specific implementation, the third adapter 23 and the fourth adapter 24 need to be connected to a circulating heat dissipation device pre-installed with coolant. The coolant takes away the heat after passing through the lower mold body 22, thereby cooling the lower mold body 22. After that, the coolant returns to the circulating heat dissipation device to dissipate heat and is then transported to the lower mold body 22 to ensure that the lower mold body 22 is in a low temperature state.

[0039] The lower mold body 22 is provided with a lower concave portion 28 matching the shape of the wire, and the bottom shape of the upper mold body 41 matches the lower concave portion 28. In specific implementation, the upper mold body 41 and the lower mold body 22 can be replaced according to the specific specifications of the wire to be processed.

[0040] The side of the upper mold body 41 is provided with a first stopper 47, and the lower mold body 22 is provided with a second stopper 29 matching the first stopper 47. The cooperation between the first stopper 47 and the second stopper 29 can clamp the wire when the upper mold body 41 is pressed down. The positions of the first stopper 47 and the second stopper 29 can be adaptively set according to the specific specifications of the wire to be processed.

[0041] The first stopper 47 is provided with a first inclined surface 471 on one side facing the second stopper 29, and the second stopper 29 is provided with a second inclined surface 291 matching the first inclined surface 471 on one side facing the first stopper 47. The first inclined surface 471 and the second inclined surface 291 can match the shape of the wire and sandwich the wire in the middle. In specific implementation, the specific shapes of the first stopper 47 and the second stopper 29 can be adaptively set according to the specific specifications of the wire to be processed.

[0042] The driving mechanism 3 includes a vertical driving member 31 disposed on the support frame 11, and a lifting plate 32 connected to the vertical driving member 31. In this embodiment, the vertical driving member 31 is a cylinder.

[0043] The platform 1 is also provided with a guide assembly 5 , which includes a plurality of guide rods 51 vertically provided on the platform 1 , and the lifting plate 32 is connected to the guide rods 51 via guide sleeves 52 .

[0044] The guide rod 51 is sleeved with a ball sleeve 53 that matches the guide sleeve 52. The ball sleeve 53 can reduce the contact surface with the guide sleeve 52, making the entire moving process more stable and rapid.

[0045] The top edge of the lower mold body 22 is provided with a positioning member 6. The positioning member 6 can be used to position the wire to ensure that the wire is placed in a predetermined position.

[0046] The machine 1 is provided with an operation panel 12 and a function button 13. The operation panel 12 can set various parameters during riveting, and the function button 13 includes a power button, a start button or a stop button.

[0047] In specific use, firstly, the matching upper mold body 41 and lower mold body 22 are selected according to the specifications of the wire to be processed. The wire to be cold-riveted is placed in the inner concave part of the lower mold body 22, and the driving mechanism 3 drives the upper mold assembly 4 to press down. The upper mold body 41 and the lower mold body 22 cooperate to press the wire tightly, and the wire is quickly cooled down, so that the insulation layer of the wire is kept in close contact with the mica tape layer to achieve cooling. After the wire is fully cooled, the insulation layer becomes flat, avoiding the situation that the insulation layer is wrinkled.

[0048] The utility model is provided with an upper mold assembly 4 and a lower mold assembly 2. The upper mold body 41 of the upper mold assembly 4 and the lower mold body 22 of the lower mold assembly 2 are both provided with flow channels for passing circulating coolant. When the upper mold body 41 and the lower mold body 22 press the new energy vehicle wire, the insulation layer of the wire is flattened and quickly cooled down, thereby ensuring a tighter connection between the insulation layer, the mica tape and the conductor, avoiding wrinkling of the insulation layer, ensuring product quality, improving the yield rate, and avoiding frequent rework, thereby improving production efficiency.

[0049] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In addition, the terms "first", "second", etc. 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" or "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.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the scope of the appended claims.

Claims

1. A cold riveting device, characterized in that: It includes a machine platform, a support frame arranged on the machine platform, a lower mold assembly arranged on the machine platform, a driving mechanism arranged on the support frame, and an upper mold assembly connected to the driving mechanism, the position of the upper mold assembly corresponds to the position of the lower mold assembly, and the driving mechanism drives the upper mold assembly to move toward the lower mold assembly; the upper mold assembly includes an upper mold body connected to the driving mechanism, and a first adapter and a second adapter connected to the upper mold body, a first flow channel, a second flow channel, and a first connecting channel for connecting the first flow channel and the second flow channel are arranged inside the upper mold body, the first adapter is connected to the first flow channel, and the second adapter is connected to the second flow channel.

2. The cold riveting device according to claim 1, characterized in that: The lower mold assembly includes a lower mold base arranged on the machine platform, a lower mold body arranged on the lower mold base, a third adapter and a fourth adapter connected to the lower mold body, a third flow channel, a fourth flow channel, and a second connecting channel for connecting the third flow channel and the fourth flow channel are arranged inside the lower mold body, the third adapter is connected to the third flow channel, and the fourth adapter is connected to the fourth flow channel.

3. The cold riveting device according to claim 2, characterized in that: The lower mold body is provided with a concave portion matching the shape of the wire, and the bottom shape of the upper mold body matches the concave portion.

4. The cold riveting device according to claim 2, characterized in that: A first stopper is disposed on the side of the upper mold body, and a second stopper matching the first stopper is disposed on the lower mold body.

5. The cold riveting device according to claim 4, characterized in that: A first inclined surface is arranged on a side of the first stopper facing the second stopper, and a second inclined surface matching the first inclined surface is arranged on a side of the second stopper facing the first stopper.

6. The cold riveting device according to claim 1, characterized in that: The driving mechanism comprises a vertical driving member arranged on the supporting frame, and a lifting plate connected to the vertical driving member.

7. The cold riveting device according to claim 6, characterized in that: The platform is also provided with a guide assembly, which includes a plurality of guide rods vertically arranged on the platform, and the lifting plate is connected to the guide rods via guide sleeves.

8. The cold riveting device according to claim 7, characterized in that: The guide rod is sleeved with a ball sleeve matching the guide sleeve.

9. The cold riveting device according to claim 2, characterized in that: A positioning piece is arranged on the top edge of the lower mold body.

10. The cold riveting device according to claim 1, characterized in that: The machine is provided with an operation panel and function buttons.

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