Round shell riveting equipment for cylindrical battery of new energy automobile

Abstract

The utility model discloses round shell riveting equipment for a cylindrical battery of a new energy automobile, which is characterized in that a lower template is arranged on a bedplate of a press and is provided with a positioning column for supporting a product, an upper template is arranged at the output end of the press, the lower end of the upper template is detachably provided with a pressure head, and a sliding table in a tool changing mechanism is arranged on the bedplate of the press through a guide rail pair; a lifting module is arranged on the sliding table, a carrying table is arranged at the output end of the lifting module, a rotating table is arranged on the carrying table, a plurality of positioning seats are arranged on the rotating table, pressing heads are arranged in the positioning seats, and the rotating table is driven to enable the empty positioning seats located on the rotating table to bear the pressing heads on the upper die plate; and the pressure head in the other positioning seat is in butt joint with the upper template through driving. Through the cooperation of the translation module, the lifting module and the rotating table, stamping of different requirements can be completed after the multiple pressing heads of different structures are replaced on the upper die plate, automatic machining of multi-step stamping of products is achieved, and the machining efficiency of the products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of round shell processing devices for cylindrical batteries, and in particular to round shell riveting equipment for cylindrical batteries of new energy vehicles. Background Art

[0002] During the riveting process of cylindrical lithium battery shell products for new energy vehicles, the ends need to be processed into specific structures as needed. However, when the process is immature and not finalized, the dimensional repeatability of the riveted products is poor, and it is difficult to ensure the consistency of the product process. In other words, it is difficult to meet the molding requirements through a one-step molding method, so it can be achieved through a multi-step molding process.

[0003] In the prior art, such as a new energy vehicle battery shell riveting device with application number 202320095959.2, it is disclosed that by installing the upper template on the pneumatic clamp in the center of the riveting turntable, the pneumatic clamp is extended and retracted to drive the upper template to descend and pressurize the workpiece substrate to apply elastic pre-pressure to perform riveting operations. However, if it is necessary to implement the above-mentioned multi-step riveting process, it does not disclose how to conveniently and efficiently replace the pressure head for secondary or multiple riveting, and it is impossible to achieve automated processing to improve processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a round shell riveting equipment for cylindrical batteries of new energy vehicles. Through the cooperation of a translation module, a lifting module and a rotating table, a plurality of pressure heads with different structures can be replaced on an upper template. Different pressure heads are replaced in turn to complete stamping with different requirements, thereby realizing the automated processing of multi-step stamping of products and improving the processing efficiency of products.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a round shell riveting device for cylindrical batteries of new energy vehicles, including a press machine, and also including:

[0006] The lower template is arranged on the platen of the press and has a positioning column on the upper end for supporting the product.

[0007] The upper template is arranged at the output end of the press, and the lower end is provided with a detachable pressing head aligned with the positioning column.

[0008] The tool changing mechanism includes a guide rail pair, a slide, a carrier and a rotating table. The slide is arranged on the table plate of the press through the guide rail pair and is connected to the translation module arranged on the press. The slide is provided with a lifting module. The output end of the lifting module is provided with a carrier. The rotating table is arranged on the carrier and has a plurality of positioning seats axially symmetrically arranged thereon. A pressure head is arranged in the positioning seat. The rotating table is driven so that the empty positioning seat thereon receives the pressure head on the upper template, and is driven to dock the pressure head in another positioning seat with the upper template.

[0009] As a further optimization, the pressing head includes an upper pressing plate, a lower pressing plate and a punch. The upper pressing plate is arranged on the upper template and is connected to the punch. The lower pressing plate is provided with a punching hole. The lower pressing plate is arranged at the lower end of the upper pressing plate through a plurality of elastic guides, and the punch extends into the punching hole.

[0010] As a further optimization, the plurality of press heads are provided with punches of different structures, so as to complete different stamping requirements in sequence.

[0011] As a further optimization, a mounting hole is provided on the upper pressure plate, and a positioning groove is provided on the inner wall of the mounting hole. The upper template includes a mounting plate, a sleeve, a push pin and a positioning ball. The mounting plate is arranged at the output end of the press, and the sleeve is arranged on the mounting plate. The sleeve is provided with a middle cavity, and at least one limiting through hole connected to the middle cavity is provided on the lower side wall. The middle cavity is connected to the trachea interface arranged on the mounting plate. The push pin is arranged in the middle cavity. After air is supplied or exhausted through the trachea interface, the positioning ball is moved in the middle cavity to disengage from the positioning groove, or the pushing-out limiting through hole of the positioning ball part is embedded in the positioning groove. The positioning ball is driven to move by inflation and exhaust to complete the separation and installation from the pressure head. The disassembly and assembly method is simple and reliable, and it is easy to cooperate with the tool changing mechanism to realize automation.

[0012] As a further optimization, the push column includes a wide column and a thin column arranged at the lower end of the wide column, the side wall of the thin column is provided with a receiving groove, the middle cavity includes an upper cavity and a lower cavity that are connected, the wide column is embedded in the upper cavity, and the thin column is at least partially embedded in the lower cavity, and the limiting through hole is aligned with the receiving groove so that the positioning ball does not protrude from the outer wall of the sleeve.

[0013] As a further optimization, the number of the positioning balls and the limiting through holes are both three, and the accommodating groove is an annular groove connected end to end. By embedding a plurality of axially symmetrical positioning balls into the positioning groove, stable positioning of the pressure head can be achieved.

[0014] As a further optimization, a sealing ring is provided inside the sleeve and / or between the sleeve and the push pin to ensure air tightness during inflation or deflating.

[0015] As a further optimization, a positioning pin is provided on the rotating platform next to the positioning seat, and a positioning hole is provided on the pressure head. The positioning hole is sleeved on the positioning pin, which can ensure the stability of the pressure head on the positioning seat.

[0016] As a further optimization, it also includes a guide assembly, which includes a guide cylinder arranged on the slide table and a guide column arranged on the carrier table. The guide cylinder is sleeved on the guide column to ensure the accuracy of the vertical movement of the pressure head driven by the rotating table.

[0017] As a further optimization, a cleaning mechanism is also included, which is arranged on the press and is located at least below one positioning seat, so as to ensure the cleanliness of the pressing head after the punching action.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. Through the cooperation of the translation module, the lifting module and the rotating table, multiple pressure heads with different structures can be replaced on the upper template. Different pressure heads can be replaced in turn to complete the stamping with different requirements, realizing the automated processing of multi-step stamping of products and improving the processing efficiency of products;

[0020] 2. The upper template drives the positioning ball to move by inflation and degassing to complete the detachment and installation of the pressure head. The disassembly and installation methods are simple, which facilitates automated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model.

[0022] Figure 2 It is a structural diagram of the tool changing mechanism of the present utility model.

[0023] Figure 3 This is a structural diagram of the tool changing mechanism of the utility model from another side perspective.

[0024] Figure 4 It is a cross-sectional view of the pressure head of the utility model.

[0025] Figure 5 It is a structural diagram of the upper template of the utility model.

[0026] Figure 6 This is a cross-sectional view of the pressure head of the utility model installed on the upper template.

[0027] Figure 7 It is a structural diagram of the push column of the utility model. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figures 1 to 3As shown, a round shell riveting device for cylindrical batteries of new energy vehicles includes a press 1, a lower template 2, an upper template 4 and a tool changing mechanism 6. The press 1 has a C-frame structure and is a 10T servo press. The lower template 2 is arranged on the table of the press 1, and a positioning column 3 for supporting the product is arranged at the upper end. The upper template 4 is arranged at the output end of the press 1, and a pressure head 5 aligned with the positioning column 3 is detachably arranged at the lower end. The tool changing mechanism 6 includes a guide pair 61, a slide 62, a carrier 65 and a rotating table 66. The slide 62 is arranged on the press through the guide pair 61. The rotary table 66 is arranged on the table of the press machine 1, and is connected to the translation module 63 arranged on the press machine 1. The translation module 63 can choose a translation cylinder. The slide table 62 is provided with a lifting module 64. The lifting module can choose a linear electric cylinder. A carrier 65 is provided at its output end. A rotating table 66 is arranged on the carrier 65, and four positioning seats 660 are axially symmetrically arranged thereon. A pressure head 5 is arranged in the positioning seat 660. The rotating table 66 is driven to make the empty positioning seat thereon receive the pressure head on the upper template 4, and is driven to make the pressure head in another positioning seat dock with the upper template 4.

[0030] In the present invention, the product (round shell for cylindrical battery of new energy vehicle) is placed on the positioning column 3, and the upper template 4 is driven by the output end of the press machine 1 to drive the pressure head 5 to complete a stamping of the product. After the upper template 4 is reset, the translation module 63 drives the slide 62 to move to the side close to the positioning column 3, and the rotating table 66 is moved so that the empty positioning seat 660 located thereon is aligned with the pressure head 5 on the upper template 4, and the lifting module 64 drives the carrier 65 to drive the rotating table 66 to move up, so that the pressure head on the upper template 4 extends into the empty positioning seat and detaches from the upper template 4, and the lifting module 64 drives the carrier 66 again. After the rotary table 66 is driven to descend to a certain height, the rotary table 66 places another different pressing head below the upper template 4 and above the positioning column 3 after the action, and then the lifting module 64 drives the other pressing head to dock with the upper template 4 and be installed on the upper template 4, so a positioning seat 660 is newly vacant on the rotary table 66. After the installation of the other pressing head is completed, the various components of the tool changing mechanism 6 are reset, and the press machine 1 uses the other pressing head to complete the second stamping of the product that has been stamped once. By repeating the above steps, four different pressing heads can be used to complete four stampings of the product until it is formed.

[0031] The utility model uses multiple positioning seats on the tool changing mechanism to carry multiple pressure heads with different structures. Through the functions of the translation module, the lifting module and the rotating table, different pressure heads can be replaced in sequence to complete stamping with different requirements, thereby realizing the automated processing of multi-step stamping of products and improving the processing efficiency of products.

[0032] like Figure 4As shown, the pressing head 5 includes an upper pressing plate 51, a lower pressing plate 52 and a punch 54. The upper pressing plate 51 is arranged on the upper template 4, and the punch 54 is fixedly connected to the lower end. The lower pressing plate 52 is provided with a punch hole 520. The lower pressing plate 52 is arranged at the lower end of the upper pressing plate 51 through a plurality of elastic guides 53 (for example, a spring + guide rod configuration), and the punch 54 extends into the punch hole 520. When the pressing head 5 performs a stamping action, the lower pressing plate 52 first abuts against the upper end of the product to maintain stability, and then the upper pressing plate 51 drives the punch 54 to move downward and protrude downward from the punch hole 520 to stamp the product, so as to achieve the stability and accuracy of the punch 54 stamping. In addition, different pressing heads 5 have punches 54 with different structures to meet the stamping requirements of different processes.

[0033] Combination Figures 5 to 7 As shown, for the upper pressing plate 51 to be installed on the upper template 4, a mounting hole 500 can be provided on the upper pressing plate 51, and a positioning groove 510 is formed on the inner wall of the mounting hole 500. The upper template 4 includes a mounting plate 41, a sleeve 42, a push column 44 and a positioning ball 45. The mounting plate 41 is arranged at the output end of the press 1, and the sleeve 42 is arranged on the mounting plate 41. The sleeve 42 is provided with a middle cavity 42a, and the bearing pair on the side wall of the lower part is provided with three limiting through holes 420 connected with the middle cavity 42a. The middle cavity 42a is connected with the air pipe interface 43 arranged on the mounting plate 41, and the push column 44 is arranged in the middle cavity 42a, and its At least the upper end surface forms a seal with the middle cavity 42a, and the push rod 44 moves downward after air is supplied through the trachea interface 33, and allows the positioning ball 45 to be positioned in the middle cavity 42a to disengage from the positioning groove 510 on the upper pressure plate 51, or moves upward after air is evacuated through the trachea interface 33, and pushes part of the positioning ball 45 out of the limiting through hole 420 and then embeds it into the positioning groove 510 on the upper pressure plate 51. In this way, the upper template 4 can be separated from or fixed to the upper pressure plate 51 by the positioning ball 45 disengaging from the positioning groove 510, or extending into the positioning groove 510, that is, the upper template 4 and the pressure head 5 can be quickly disassembled and installed through the ventilation condition of the trachea interface 33 and the external air source.

[0034] Furthermore, the push post 44 includes a wide post 441 and a thin post 442 arranged at the lower end of the wide post 441. The side wall of the thin post 442 is formed with a receiving groove 440 connected end to end. Matching this, the middle cavity 42a includes an upper cavity 421 and a lower cavity 422 connected to each other, and the limiting through hole 420 is connected to the lower cavity 422. The wide post 441 is embedded in the upper cavity 421, and the thin post 442 is at least partially embedded in the lower cavity 422. After the push post 44 is moved, the receiving groove 440 on the thin post 442 is aligned with the upper cavity 421. After the positioning hole 420 is aligned, the positioning ball 45 is allowed to partially embed in the receiving groove 440 without protruding from the outer wall of the sleeve 42, so that the positioning ball 45 can be separated from the positioning groove 510, so that the upper pressing plate 51 is separated from the upper template 4; on the contrary, when the push column 44 is moved so that the receiving groove 440 on the thin column 442 is misaligned with the positioning hole 420, at least part of the positioning ball 45 is pushed out of the limiting hole 420 through the side wall of the thin column 442 and enters the positioning groove 510 to complete the installation of the upper pressing plate 51 on the upper template 4. Of course, a corresponding limiting member can also be provided on the lower side wall of the wide column 441, so as to prevent the thin column 442 from extending too much out of the lower cavity 422 after abutting against the bottom wall of the upper cavity 421.

[0035] In addition, sealing rings can be respectively provided on the sleeve 42 and the push column 44 to maintain the sealing performance of the trachea interface 33 when it is in effect. For example, an annular groove 4411 can be provided on the side wall of the wide column 441 to accommodate the sealing ring 46 so as to form a seal between the wide column 441 and the inner wall of the sleeve 42.

[0036] Combination Figure 3 and Figure 4 As shown, a positioning pin 661 is provided on the rotating table 66 next to the positioning seat 660, and a positioning hole 511 is provided on the pressing head 5 (upper pressing plate 51). The positioning hole 511 is sleeved on the positioning pin 661 to ensure the accuracy of placing the pressing head 5 on the positioning seat 660 and the stability during the movement.

[0037] like Figure 2 As shown, the tool changing mechanism 6 also includes a guide assembly, which includes a guide cylinder 671 arranged on the slide 62, and a guide column 672 arranged at the lower end of the carrier 65. The guide cylinder 671 is sleeved on the guide column 672 to ensure the accuracy of the vertical movement of the ram 5 so as to dock with the upper template 4; in addition, it can also be raised and lowered on the upper template 4 or the output end of the press 1 after being connected to the press body through a vertical guide rail to ensure the vertical movement accuracy of the ram 5 when it acts on the product.

[0038] like Figure 3 As shown, the tool changing mechanism 6 also includes a cleaning mechanism 68, which is arranged on the press 1 and is located at least below one positioning seat 660, and can be used to clean the pressing head 5 to ensure the movement accuracy when it is used next time.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A round shell riveting equipment for cylindrical batteries of new energy vehicles, including a press, characterized in that: Also includes: The lower template is arranged on the platen of the press and has a positioning column on the upper end for supporting the product. The upper template is arranged at the output end of the press, and the lower end is provided with a detachable pressing head aligned with the positioning column. The tool changing mechanism includes a guide rail pair, a slide, a carrier and a rotating table. The slide is arranged on the table plate of the press through the guide rail pair and is connected to the translation module arranged on the press. The slide is provided with a lifting module. The output end of the lifting module is provided with a carrier. The rotating table is arranged on the carrier and has a plurality of positioning seats axially symmetrically arranged thereon. A pressure head is arranged in the positioning seat. The rotating table is driven so that the empty positioning seat thereon receives the pressure head on the upper template, and is driven to dock the pressure head in another positioning seat with the upper template.

2. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 1 is characterized in that: The pressing head includes an upper pressing plate, a lower pressing plate and a punch. The upper pressing plate is arranged on the upper template and is connected to the punch. The lower pressing plate is provided with a punching hole. The lower pressing plate is arranged at the lower end of the upper pressing plate through a plurality of elastic guides, and the punch extends into the punching hole.

3. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 2 is characterized in that: The plurality of pressing heads include punches with different structures.

4. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 2 or 3, characterized in that: The upper pressure plate is provided with a mounting hole, and the inner wall of the mounting hole is provided with a positioning groove. The upper template includes a mounting plate, a sleeve, a push pin and a positioning ball. The mounting plate is arranged at the output end of the press, and the sleeve is arranged on the mounting plate. The sleeve is provided with a middle cavity, and at least one limiting through hole connected with the middle cavity is provided on the side wall of the lower part. The middle cavity is connected with the air pipe interface arranged on the mounting plate. The push pin is arranged in the middle cavity. After supplying or exhausting air through the air pipe interface, the push pin makes the positioning ball move out of the positioning groove in the middle cavity, or embeds the positioning ball part into the positioning groove through the pushing-out limiting through hole.

5. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 4 is characterized in that: The push column includes a wide column and a thin column arranged at the lower end of the wide column. The side wall of the thin column is provided with a receiving groove. The middle cavity includes an upper cavity and a lower cavity that are connected. The wide column is embedded in the upper cavity, and the thin column is at least partially embedded in the lower cavity. The positioning ball is aligned with the limiting through hole through the receiving groove so that the positioning ball does not protrude from the outer wall of the sleeve.

6. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 5 is characterized in that: The number of the positioning balls and the limiting through holes are both three, and the accommodating grooves are annular grooves connected end to end.

7. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 4 is characterized in that: A sealing ring is arranged inside the sleeve and / or between the sleeve and the push pin.

8. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 1 is characterized in that: A positioning pin is provided on the rotating platform beside the positioning seat, and a positioning hole is provided on the pressure head. The positioning hole is sleeved on the positioning pin.

9. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 1 is characterized in that: It also includes a guide assembly, which includes a guide cylinder arranged on the slide and a guide column arranged on the carrier, and the guide cylinder is sleeved on the guide column.

10. The round shell riveting equipment for cylindrical batteries of new energy vehicles according to claim 1, characterized in that: The invention also comprises a cleaning mechanism which is arranged on the press and is located at least below one positioning seat.

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