A hot riveting jig upper die of a telescopic hot riveting head and a hot riveting jig

Abstract

A hot riveting jig upper die of a telescopic hot riveting head, comprising a heating plate and a hot riveting assembly connected to the heating plate; the hot riveting assembly comprises a heat-conducting connecting plate, a heat-conducting mounting plate and a plurality of elastic riveting assembly groups; the heat-conducting connecting plate is connected to the heating plate; the heat-conducting mounting plate is provided with a plurality of mounting holes penetrating through the top surface and the bottom surface of the heat-conducting mounting plate, and the bottom of the mounting hole extends inwardly along the radial direction to a limiting portion; each mounting hole is provided with an elastic riveting assembly group; the elastic riveting assembly group comprises a hot riveting head and an elastic piece, the hot riveting head is slidingly installed in the mounting hole, the bottom of the hot riveting head extends downwardly out of the mounting hole, the top of the outer side wall of the hot riveting head is provided with an ear portion, the ear portion is limitedly matched with the limiting portion, and the two ends of the elastic piece are respectively abutted against the heat-conducting connecting plate and the hot riveting head. The utility model also provides a hot riveting jig using the above-mentioned upper die. Compared with the prior art, the hot riveting of the hot riveting upper die can be self-adaptively telescopic to realize hot riveting of different products.

Description

Technical Field

[0001] This utility model belongs to the technical field of upper mold for hot riveting fixtures, specifically relating to an upper mold for a hot riveting fixture with a retractable hot riveting head, and a hot riveting fixture using the upper mold for hot riveting fixtures. Background Technology

[0002] The integrated busbar (Cell Contact System, CCS) is a core component in new energy batteries, achieving functions such as electrical connection, signal acquisition, structural support, and safety protection through highly integrated design. An integrated busbar typically includes a bracket, acquisition components (such as FPCs), and aluminum busbars. The bracket is equipped with heat-fitting posts, which secure the acquisition components and aluminum busbars to the bracket.

[0003] As provided in the authorization announcement number CN216941861U, the hot riveting mold and the hot riveting equipment include a heating plate and several riveting heads on the heating plate. The distribution of the hot riveting heads corresponds to the hot riveting posts on the integrated busbar that needs to be hot riveted, so that all the hot riveting posts on the integrated busbar can be hot riveted at one time, thereby improving production efficiency.

[0004] Currently, hot riveting posts are generally integrally formed on the heating plate. Since the height of the hot riveting posts varies among different integrated busbar models, the length of the hot riveting posts in the hot riveting assembly also needs to be configured to adapt to the desired length. This requires the development of corresponding hot riveting assemblies for each integrated busbar model, increasing production costs. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a retractable hot riveting head upper mold for a hot riveting fixture.

[0006] To achieve the above objectives, this utility model discloses a retractable hot riveting head hot riveting fixture upper mold, including a heating plate and a hot riveting assembly connected to the heating plate;

[0007] The hot riveting assembly includes a heat-conducting connecting plate, a heat-conducting mounting plate, and multiple sets of elastic riveting assemblies;

[0008] The heat-conducting connecting plate is connected to the heating plate;

[0009] The heat-conducting mounting plate is provided with multiple mounting holes, which penetrate the top and bottom surfaces of the heat-conducting mounting plate, and the bottom of the mounting holes extends inward along the radial direction to form a limiting portion;

[0010] Each of the mounting holes is fitted with a set of the resilient riveting components;

[0011] The elastic riveting assembly includes a hot riveting head and an elastic element. The hot riveting head is slidably installed in the mounting hole, and the bottom of the hot riveting head extends downward out of the mounting hole. The top of the outer side wall of the hot riveting head is provided with an ear, which is limited and cooperates with the limiting part. The two ends of the elastic element abut against the heat-conducting connecting plate and the hot riveting head respectively.

[0012] Furthermore, the hot riveting head has a clearance fit with the inner wall of the mounting hole.

[0013] Furthermore, the hot riveting head and the ear have equal cross-sectional structures, the cross-sectional shape of the inner wall of the limiting part is adapted to the cross-sectional shape of the hot riveting head, and the cross-sectional shape of the inner wall of the mounting hole is adapted to the cross-sectional shape of the ear.

[0014] Furthermore, the distance between the hot riveting head and the inner wall of the mounting hole is 0.08mm to 0.12mm.

[0015] Furthermore, the heat-conducting connecting plate is provided with a first through hole, and the heat-conducting mounting plate is provided with a threaded hole opposite to the first through hole. The bolt passes through the first through hole and is threaded to the threaded hole to fasten the heat-conducting connecting plate and the heat-conducting mounting plate.

[0016] Furthermore, the heat-conducting mounting plate is provided with a second through hole, and the heat-conducting connecting plate is provided with a third through hole, with the second through hole and the third through hole being arranged opposite to each other.

[0017] Furthermore, the first through hole and / or the second through hole are countersunk through holes.

[0018] Furthermore, the heat-conducting connecting plate is provided with multiple blind holes, which are arranged one-to-one with multiple mounting holes, and one end of the elastic element is located in the corresponding blind hole.

[0019] Furthermore, the top surface of the heat-conducting mounting plate is provided with a slot, and the bottom of the heating plate has a protrusion, which is embedded in the slot.

[0020] This utility model also provides a hot riveting fixture using the above-mentioned hot riveting fixture upper mold.

[0021] A hot riveting fixture includes a bottom mold and an upper mold, wherein the upper mold is the upper mold of the hot riveting fixture with a retractable hot riveting head as described in any of the preceding claims.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] The heat generated by the heating plate of the upper mold of the hot riveting fixture is transferred to the hot riveting head through the heat-conducting connecting plate and the heat-conducting mounting plate, heating the hot riveting head and ensuring the hot riveting effect. The hot riveting head is slidably installed in the mounting hole and is held in place by the elastic element. On the one hand, the elastic force released by the elastic element can ensure the downward pressure during hot riveting and ensure the hot riveting effect. On the other hand, when riveting hot riveting posts with the same distribution but different heights, all the hot riveting heads of the hot riveting assembly can adaptively extend and retract according to the height of the corresponding hot riveting post to perform hot riveting, so as to realize the hot riveting of different products, improve the versatility of the hot riveting assembly, eliminate the need to develop hot riveting assemblies for each product, and reduce costs.

[0024] Each set of elastic riveting components is relatively independent. If damage occurs, only the corresponding elastic riveting component needs to be replaced, reducing maintenance costs. The heat of the hot riveting head is transferred through the heat-conducting connecting plate and the heat-conducting mounting plate. There is no separate heating module on the hot riveting head. The hot riveting head is relatively independent from the heat-conducting connecting plate and the heat-conducting mounting plate, which facilitates maintenance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the hot riveting assembly in the upper mold of the hot riveting fixture for the retractable hot riveting head, as shown in the embodiment.

[0026] Figure 2 for Figure 1 A three-dimensional structural diagram of the hot riveting assembly from another perspective;

[0027] Figure 3 for Figure 1 A three-dimensional structural diagram of the heat-conducting mounting plate;

[0028] Figure 4 for Figure 1 A cross-sectional view of the upper mold of the hot riveting fixture;

[0029] Figure 5 This is a top view of the hot riveting fixture (the upper mold only includes the hot riveting assembly) in the embodiment;

[0030] Figure 6 for Figure 5 Front sectional view of the hot riveting fixture;

[0031] Heat-conducting connecting plate 100; first through hole 110; third through hole 120; blind hole 130; slot 140;

[0032] Thermally conductive mounting plate 200; mounting hole 210; limiting part 211; threaded hole 220; second through hole 230;

[0033] Elastic riveting assembly 300; hot riveting head 310; ear 311; elastic element 320;

[0034] Bottom mold 400; positioning pins;

[0035] Integrated busbar 500. Detailed Implementation

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] A retractable hot riveting head hot riveting fixture upper mold, see [link / reference]. Figures 1-4 It includes a heating plate (not shown in the figure) and a hot riveting assembly connected to the heating plate. The heating plate generates heat and transfers it to the hot riveting assembly, thereby heating the hot riveting assembly and ensuring the temperature during hot riveting.

[0038] In this embodiment, the thermal riveting assembly includes a thermally conductive connecting plate 100, a thermally conductive mounting plate 200, and multiple sets of elastic riveting assemblies 300. The thermally conductive connecting plate 100 is connected to the bottom of the heating plate. The thermally conductive mounting plate 200 has multiple mounting holes 210, which penetrate the top and bottom surfaces of the thermally conductive mounting plate 200. A limiting portion 211 extends radially inward from the bottom of each mounting hole 210. Each mounting hole 210 houses a set of elastic riveting assemblies 300. Specifically, each elastic riveting assembly 300 includes a thermal riveting head 310 and an elastic element 320. The thermal riveting head 310 is slidably mounted within the mounting hole 210, and its bottom extends downward beyond the mounting hole 210 to achieve riveting. An ear 311 is provided on the top of the outer side wall of the thermal riveting head 310, and the bottom surface of the ear 311 engages with the top surface of the limiting portion 211 for limiting. The elastic element 320 is preferably a spring, with its two ends abutting against the heat-conducting connecting plate 100 and the hot riveting head 310, respectively.

[0039] By sliding the hot riveting head 310 into the mounting hole 210 and pressing it against the elastic element 320, on the one hand, the elastic force released by the elastic element 320 can ensure the downward pressure during hot riveting, ensuring the hot riveting effect. On the other hand, when riveting hot riveting posts of the same distribution but different heights, all the hot riveting heads 310 of the hot riveting assembly can adaptively extend and retract according to the height of the corresponding hot riveting post to perform hot riveting, thereby realizing hot riveting of different products, improving the versatility of the hot riveting assembly, eliminating the need to develop hot riveting assemblies for each product, and reducing costs. Each set of elastic riveting components 300 is relatively independent. If damage occurs, only the corresponding elastic riveting component 300 needs to be replaced, reducing maintenance costs. The heat of the hot riveting head 310 is transferred through the heat-conducting connecting plate 100 and the heat-conducting mounting plate 200. The hot riveting head 310 does not have a separate heating module. The hot riveting head 310 is relatively independent from the heat-conducting connecting plate 100 and the heat-conducting mounting plate 200, which facilitates maintenance.

[0040] In this embodiment, the hot riveting head 310 is fitted with the inner wall of the mounting hole 210 with a clearance. This facilitates the installation of the hot riveting head 310 into the mounting hole 210, avoids jamming during the installation process, and ensures that heat can be transferred to the hot riveting head 310, thus maintaining the temperature of the hot riveting head 310 during riveting.

[0041] Preferably, the distance between the hot riveting head 310 and the inner wall of the mounting hole 210 is 0.08mm to 0.12mm, and more preferably, the distance between them is 0.1mm.

[0042] In this embodiment, the hot riveting head 310 and the ear portion 311 have equal cross-sectional structures, such as cylindrical shapes. The cross-sectional shape of the inner wall of the limiting portion 211 is adapted to the cross-sectional shape of the column, and the cross-sectional shape of the inner wall of the mounting hole 210 is adapted to the cross-sectional shape of the ear portion 311, i.e., a cylindrical cavity. Through the clearance fit between the outer wall of the hot riveting head 310 and the inner wall of the mounting cavity, as well as the clearance fit between the outer wall of the ear portion 311 and the inner wall of the limiting portion 211, the hot riveting column is stably assembled, thereby improving the assembly accuracy and stability of the hot riveting column during the extension and retraction process.

[0043] In this embodiment, the heat-conducting connecting plate 100 is provided with a first through hole 110, and the heat-conducting mounting plate 200 is provided with a threaded hole 220 opposite to the first through hole 110. Bolts pass through the first through hole 110 and are threaded to the threaded hole 220 to fasten the heat-conducting connecting plate 100 and the heat-conducting mounting plate 200. The heat-conducting connecting plate 100 and the heat-conducting mounting plate 200 are assembled by bolt connection, which has a simple structure and is easy to assemble.

[0044] The heat-conducting mounting plate 200 is provided with a second through hole 230, and the heat-conducting connecting plate 100 is provided with a third through hole 120. The second through hole 230 and the third through hole 120 are arranged opposite to each other. By providing the second through hole 230 and the third through hole 120, the two heat-conducting plates can be connected and fixed to the heating plate, for example, by means of bolt connection.

[0045] The first through hole 110 and the second through hole 230 are countersunk through holes, which can prevent the bolt heads from being exposed and causing interference problems. The countersunk head of the second through hole 230 is at its bottom, that is, from below the heat-conducting mounting plate 200, the two heat-conducting plates are assembled onto the heating plate, which facilitates assembly.

[0046] Since the mounting hole 210 needs to have a certain depth to ensure that the elastic element 320 can be installed, if the entire elastic element 320 is installed on the heat-conducting mounting plate 200, the heat-conducting mounting plate 200 would need to be configured with a certain thickness, which would increase the thickness and weight of the entire thermal riveting assembly. Since both heat-conducting plates in this embodiment have countersunk holes and both heat-conducting plates have a certain thickness, in this embodiment, the heat-conducting connecting plate 100 is provided with multiple blind holes 130, each corresponding to a mounting hole 210. One end of the elastic element 320 is located within the corresponding blind hole 130. By providing blind holes 130 on the heat-conducting connecting plate 100 to install the elastic element 320, the thickness of the heat-conducting mounting plate 200 does not need to be too large, reducing the thickness of the heat-conducting mounting plate 200, making the structure more compact, reducing the weight of the heat-conducting mounting plate 200, and facilitating assembly.

[0047] In this embodiment, the top surface of the heat-conducting mounting plate 200 is provided with a slot 140, and the bottom protrusion of the heating plate (not shown in the figure) is embedded in the slot 140. The cooperation between the slot 140 and the protrusion can not only improve the assembly stability and reliability of the two, but also increase the contact area between the two and accelerate the heating effect.

[0048] This embodiment also provides a hot riveting fixture using the above-described hot riveting fixture upper mold, see [link to documentation]. Figures 5-6 The hot riveting fixture includes a bottom mold 400 and an upper mold. The bottom mold 400 is used to place the integrated busbar 500, and the bottom mold 400 is provided with a positioning post into which a hollow hot riveting post is inserted. The length of the positioning post is less than the length of the hot riveting post. The upper mold is the upper mold of the hot riveting fixture of the retractable hot riveting head 310 mentioned above.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A retractable hot riveting head upper mold for a hot riveting fixture, comprising a heating plate and a hot riveting assembly connected to the heating plate, characterized in that: The hot riveting assembly includes a heat-conducting connecting plate, a heat-conducting mounting plate, and multiple sets of elastic riveting assemblies; The heat-conducting connecting plate is connected to the heating plate; The heat-conducting mounting plate is provided with multiple mounting holes, which penetrate the top and bottom surfaces of the heat-conducting mounting plate, and the bottom of the mounting holes extends inward along the radial direction to form a limiting portion; Each of the mounting holes is fitted with a set of the resilient riveting components; The elastic riveting assembly includes a hot riveting head and an elastic element. The hot riveting head is slidably installed in the mounting hole, and the bottom of the hot riveting head extends downward out of the mounting hole. The top of the outer side wall of the hot riveting head is provided with an ear, which is limited and cooperates with the limiting part. The two ends of the elastic element abut against the heat-conducting connecting plate and the hot riveting head respectively.

2. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 1, characterized in that: The hot riveting head is clearance-fitted with the inner wall of the mounting hole.

3. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 2, characterized in that: The hot riveting head and the ear have equal cross-sectional structures. The cross-sectional shape of the inner wall of the limiting part is adapted to the cross-sectional shape of the hot riveting head, and the cross-sectional shape of the inner wall of the mounting hole is adapted to the cross-sectional shape of the ear.

4. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 2, characterized in that: The distance between the hot riveting head and the inner wall of the mounting hole is 0.08mm to 0.12mm.

5. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 1, characterized in that: The heat-conducting connecting plate is provided with a first through hole, and the heat-conducting mounting plate is provided with a threaded hole opposite to the first through hole. The bolt passes through the first through hole and is threaded to the threaded hole to fasten the heat-conducting connecting plate and the heat-conducting mounting plate.

6. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 1, characterized in that: The heat-conducting mounting plate is provided with a second through hole, and the heat-conducting connecting plate is provided with a third through hole, with the second through hole and the third through hole being arranged opposite to each other.

7. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 5 or 6, characterized in that: The first through hole and / or the second through hole are countersunk through holes.

8. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 1, characterized in that: The heat-conducting connecting plate is provided with multiple blind holes, and the multiple blind holes are arranged one-to-one with multiple mounting holes. One end of the elastic element is located in the corresponding blind hole.

9. The upper mold of the hot riveting fixture with a retractable hot riveting head according to claim 1, characterized in that: The top surface of the heat-conducting mounting plate is provided with a slot, and the bottom of the heating plate has a protrusion that is embedded in the slot.

10. A hot riveting fixture, comprising a bottom mold and an upper mold, characterized in that: The upper mold is the upper mold of the hot riveting fixture for the retractable hot riveting head as described in any one of claims 1-9.

Images