A multi-functional and efficient welding workstation for automobile sheet metal parts

Abstract

This utility model discloses a multi-functional and efficient welding workstation for automotive sheet metal parts, comprising a welding robot, a first carrier, a first fixing component, a second carrier, a second fixing component, a third carrier, a third fixing component, and a transfer mechanism. The first carrier is used to position a first sheet metal part; the first fixing component is used to press and fix the first sheet metal part; the second carrier is used to position a second sheet metal part and the welded first sheet metal part; the second fixing component is used to press and fix the first and second sheet metal parts together; the third carrier is used to position a third sheet metal part and an assembly; the third fixing component is used to fix the positioned third sheet metal part and the assembly; and the transfer mechanism is used to transport the positioned sheet metal parts toward the next carrier. The welding robot sequentially welds the sheet metal parts on each carrier. This welding workstation can complete the welding of three types of sheet metal parts without manual intervention, greatly improving welding efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sheet metal welding positioning technology, and in particular relates to a multi-functional and efficient welding workstation for automotive sheet metal parts. Background Technology

[0002] With the continuous development of the automotive industry, the requirements for automobile production efficiency and quality are increasing. As a crucial component of the automobile body, the welding quality of sheet metal parts directly affects the overall strength, safety, and appearance of the vehicle. In large-scale automobile production, a tooling system capable of quickly and accurately positioning sheet metal parts is needed to improve welding efficiency and quality, meeting the high-efficiency production demands of the automotive manufacturing industry.

[0003] In the process of welding automotive sheet metal parts, it is often necessary to weld different types of sheet metal parts. Typically, when welding different types of sheet metal parts, it is necessary to manually position the same type of sheet metal parts on the welding table multiple times for welding. After the welding is completed, the sheet metal parts that have been initially welded are then manually positioned again for welding with other types of sheet metal parts. Obviously, the existing welding method requires too much human intervention, which is obviously inefficient and cannot meet the requirements of fast-paced production. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional and efficient welding workstation for automotive sheet metal parts, so as to solve the problem of low welding efficiency caused by conventional manual positioning in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A multi-functional and high-efficiency welding workstation for automotive sheet metal parts includes a base and a welding robot mounted on the base, at least one set of first positioning mechanisms, at least one set of second positioning mechanisms, at least one set of third positioning mechanisms, and a transfer mechanism, wherein:

[0007] The first positioning mechanism includes a first bearing member and a first fixing component. The first bearing member is configured to bear and position at least one first sheet metal part. The first fixing component is located on one side of the first bearing member and is configured to press and fix the positioned first sheet metal part.

[0008] The second positioning mechanism includes a second bearing member and a second fixing component. The second bearing member is configured to bear and position the second sheet metal part and the welded first sheet metal part. The second fixing component is located on one side of the second bearing member and is configured to press and fix the positioned first sheet metal part and the second sheet metal part.

[0009] The third positioning mechanism includes a third bearing member and a third fixing component. The third bearing member is configured to bear and position the third sheet metal part and the welded assembly of the first sheet metal part and the second sheet metal part. The third fixing component is disposed on one side of the third bearing member and is configured to press and fix the positioned third sheet metal part and the assembly.

[0010] The welding robot is configured to sequentially weld the first sheet metal part on the first carrier, the first sheet metal part and the second sheet metal part on the second carrier, and the third sheet metal part and the assembly on the third carrier;

[0011] The transfer mechanism is configured to transfer the welded first sheet metal part on the first carrier to the second carrier, and the transfer mechanism is also configured to transfer the welded assembly located on the second carrier to the third carrier.

[0012] Furthermore, both the first positioning mechanism and the third positioning mechanism are provided in two sets.

[0013] Furthermore, the first support member includes a first support platform and a first positioning pin. The first support platform is vertically mounted on the base. The first positioning pin is mounted on the first support platform and extends out of the support surface of the first support platform. The first positioning pin is adapted to the first positioning hole at the bottom of the first sheet metal part. The first support platform is configured to support the first sheet metal part. When the first sheet metal part is placed on the first support platform, the first positioning pin is inserted into the first positioning hole.

[0014] Furthermore, the first fixing component includes a first fixing frame, a first pressing drive, and a first pressing member. The first fixing frame is vertically mounted on the base. The first pressing member is rotatably mounted on the first fixing frame. The fixing end of the first pressing drive is mounted on the top of the first fixing frame, and the driving end of the first pressing drive is connected to the first pressing member. The first pressing drive is configured to drive the first pressing member to rotate to a vertical or horizontal state. The first pressing drive drives the first pressing member to rotate to a horizontal state so that the first pressing member abuts against the end face of the first sheet metal part, thereby cooperating with the first support platform to press and fix the positioned first sheet metal part.

[0015] Furthermore, the second support member includes a second support platform and a second positioning pin. The second support platform is vertically mounted on the base, and the second positioning pin is mounted on the second support platform and extends out of the support surface of the second support platform. The second positioning pin is adapted to the second positioning hole at the bottom of the second sheet metal part. The second support platform is configured to support the second sheet metal part and the first sheet metal part after welding. When the second sheet metal part is placed on the second support platform, the second positioning pin is inserted into the second positioning hole.

[0016] Furthermore, the second fixing component includes a second fixing frame, a second pressing drive, and a second pressing member. The second fixing frame is vertically mounted on the base. The second pressing member is rotatably mounted on the second fixing frame. The fixing end of the second pressing drive is mounted on the top of the second fixing frame, and the driving end of the second pressing drive is connected to the second pressing member. The second pressing drive is configured to drive the second pressing member to rotate to a vertical or horizontal state. When the second pressing drive drives the second pressing member to rotate to a horizontal state, the second pressing member abuts against the end face of the second sheet metal part, thereby cooperating with the second support platform to press and fix the positioned second sheet metal part and the welded first sheet metal part.

[0017] Furthermore, the third support member includes a third support platform and a third positioning pin. The third support platform is vertically mounted on the base, and the third positioning pin is mounted on the third support platform and extends out of the support surface of the third support platform. The third positioning pin is adapted to the third positioning hole at the bottom of the third sheet metal part. The third support platform is configured to support the third sheet metal part and the assembly. When the third sheet metal part is placed on the third support platform, the third positioning pin is inserted into the third positioning hole.

[0018] Furthermore, the third fixing component includes a third fixing frame, a third pressing drive, and a third pressing member. The third fixing frame is vertically mounted on the base platform. The third pressing member is rotatably mounted on the third fixing frame. The fixing end of the third pressing drive is mounted on the top of the third fixing frame, and the driving end of the third pressing drive is connected to the third pressing member. The third pressing drive is configured to drive the third pressing member to rotate to a vertical or horizontal state. When the third pressing drive drives the third pressing member to rotate to a horizontal state, the third pressing member abuts against the end face of the third sheet metal part, thereby cooperating with the first support platform to press and fix the positioned third sheet metal part and the assembly.

[0019] Furthermore, the first positioning mechanism also includes a first detection element, which is mounted on the first bearing member and the detection surface of the first detection element faces the first sheet metal part. The first detection element is configured to detect whether a nut is pre-installed on the first sheet metal part.

[0020] The third positioning mechanism further includes a second detection element, which is mounted on the third bearing member and has its detection surface facing the third sheet metal part. The second detection element is configured to detect whether a nut is pre-installed on the third sheet metal part.

[0021] Furthermore, the third fixing component is provided with a third detection element, which is installed at the end of the third pressing component. The detection end of the third detection element is set towards the third sheet metal part, and the third detection element is configured to detect whether there are pre-installed bolts on the third sheet metal part.

[0022] Compared with existing technologies, the advantages of the aforementioned multi-functional and high-efficiency welding workstation for automotive sheet metal parts are as follows:

[0023] 1) With the cooperation of the first positioning mechanism, the second positioning mechanism, the third positioning mechanism, the welding robot and the transfer mechanism, the first fixing component presses and fixes the first sheet metal part after positioning, the second fixing component presses and fixes the first sheet metal part and the second sheet metal part after positioning, and the third fixing component presses and fixes the third sheet metal part and the assembly after positioning. The welding robot sequentially welds the first sheet metal part on the first carrier, the first sheet metal part and the second sheet metal part on the second carrier, and the third sheet metal part and the assembly on the third carrier. The transfer mechanism first transfers the welded first sheet metal part on the first carrier to the second carrier, and then transfers the welded assembly on the second carrier to the third carrier. The welding of the three types of sheet metal parts can be completed without manual intervention, which greatly improves the welding efficiency.

[0024] 2) By setting up two sets of first positioning mechanisms and three positioning mechanisms respectively, the simultaneous welding of two sets of first sheet metal parts and two sets of third sheet metal parts is realized, which further improves the welding efficiency;

[0025] 3) By setting up the first and second inspection pieces, the detection of whether nuts are pre-installed on sheet metal parts is realized without the need for additional inspection mechanisms, which simplifies the welding process and improves the efficiency of subsequent welding. Attached Figure Description

[0026] To more clearly illustrate and understand the technical solutions in the embodiments of this utility model, the accompanying drawings used in the background technology and embodiment description of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the multi-functional and high-efficiency welding workstation for automotive sheet metal parts provided in this embodiment of the utility model;

[0028] Figure 2 This is a top view schematic diagram of the multi-functional and high-efficiency welding workstation for automotive sheet metal parts provided in this embodiment of the utility model;

[0029] Figure 3 This is a three-dimensional structural schematic diagram of the first positioning mechanism provided in this embodiment of the utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the second positioning mechanism provided in this embodiment of the utility model;

[0031] Figure 5 This is a three-dimensional structural schematic diagram of the third positioning mechanism provided in this embodiment of the utility model;

[0032] Figure 6 This is a three-dimensional structural diagram of the first sheet metal part, the second sheet metal part, and the third sheet metal part after welding, provided in an embodiment of this utility model. Detailed Implementation

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] To facilitate understanding of this utility model, a more complete description of it will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1 to 6As shown, in this embodiment, a multi-functional and efficient welding workstation for automotive sheet metal parts includes a base 10 and a welding robot 20 mounted on the base 10, at least one set of first positioning mechanisms 30, at least one set of second positioning mechanisms 40, at least one set of third positioning mechanisms 50, and a transfer mechanism 60. The first positioning mechanism 30 includes a first bearing member 31 and a first fixing component 32. The first bearing member 31 is configured to bear and position at least one first sheet metal part 11. The first fixing component 32 is located on one side of the first bearing member 31 and is configured to press and fix the positioned first sheet metal part 11. The second positioning mechanism 40 includes a second bearing member 41 and a second fixing component 42. The second bearing member 41 is configured to bear and position a second sheet metal part 12 and the welded first sheet metal part 11. The second fixing component 42 is located on one side of the second bearing member 41 and is configured to press and fix the positioned first sheet metal part 11. The third positioning mechanism 50 includes a third bearing member 51 and a third fixing component 52. The third bearing member 51 is configured to bear and position the third sheet metal part 13 and the welded assembly of the first sheet metal part 11 and the second sheet metal part 12. The third fixing component 52 is disposed on one side of the third bearing member 51 and is configured to press and fix the positioned third sheet metal part 13 and the assembly. The welding robot 20 is configured to sequentially weld the first sheet metal part 11 on the first bearing member 31, the first sheet metal part 11 and the second sheet metal part 12 on the second bearing member 41, and the third sheet metal part 13 and the assembly on the third bearing member 51. The transfer mechanism 60 is configured to transfer the welded first sheet metal part 11 on the first bearing member 31 to the second bearing member 41. The transfer mechanism 60 is also configured to transfer the welded assembly located on the second bearing member 41 to the third bearing member 51.

[0036] As can be seen, with the cooperation of the first positioning mechanism 30, the second positioning mechanism 40, the third positioning mechanism 50, the welding robot 20, and the transfer mechanism 60, the first fixing component 32 presses and fixes the first sheet metal part 11 after positioning, the second fixing component 42 presses and fixes the first sheet metal part 11 and the second sheet metal part 12 after positioning, and the third fixing component 52 presses and fixes the third sheet metal part 13 and the assembly after positioning. The welding robot 20 sequentially welds the first sheet metal part 11 on the first carrier 31, the first sheet metal part 11 and the second sheet metal part 12 on the second carrier 41, and the third sheet metal part 13 and the assembly on the third carrier 51. The transfer mechanism 60 first transfers the welded first sheet metal part 11 on the first carrier 31 to the second carrier 41, and then transfers the welded assembly located on the second carrier 41 to the third carrier 51. Welding of the three types of sheet metal parts can be completed without manual intervention, which greatly improves welding efficiency.

[0037] In one implementation, both the first positioning mechanism 30 and the third positioning mechanism 50 are provided in two sets.

[0038] It can be seen that by setting two sets of first positioning mechanisms 30 and third positioning mechanisms 50 respectively, the simultaneous welding of two sets of first sheet metal parts 11 and two sets of third sheet metal parts 13 is realized, further improving the welding efficiency.

[0039] In one embodiment, the first support member 31 includes a first support platform 310 and a first positioning pin 311. The first support platform 310 is vertically mounted on the base 10. The first positioning pin 311 is mounted on the first support platform 310 and extends out of the support surface of the first support platform 310. The first positioning pin 311 is adapted to the first positioning hole at the bottom of the first sheet metal part 11. The first support platform 310 is configured to support the first sheet metal part 11. When the first sheet metal part 11 is placed on the first support platform 310, the first positioning pin 311 is inserted into the first positioning hole.

[0040] In one embodiment, the first fixing component 32 includes a first fixing frame 320, a first pressing drive 321, and a first pressing component 322. The first fixing frame 320 is vertically mounted on the base 10. The first pressing component 322 is rotatably mounted on the first fixing frame 320. The fixing end of the first pressing drive 321 is mounted on the top of the first fixing frame 320, and the driving end of the first pressing drive 321 is connected to the first pressing component 322. The first pressing drive 321 is configured to drive the first pressing component 322 to rotate to a vertical or horizontal state. When the first pressing drive 321 drives the first pressing component 322 to rotate to a horizontal state, the first pressing component 322 abuts against the end face of the first sheet metal part 11, thereby cooperating with the first support platform 310 to press and fix the positioned first sheet metal part 11.

[0041] In one embodiment, the second support member 41 includes a second support platform 410 and a second positioning pin 411. The second support platform 410 is vertically mounted on the base 10. The second positioning pin 411 is mounted on the second support platform 410 and extends out of the support surface of the second support platform 410. The second positioning pin 411 is adapted to the second positioning hole at the bottom of the second sheet metal part 12. The second support platform 410 is configured to support the second sheet metal part 12 and the welded first sheet metal part 11. When the second sheet metal part 12 is placed on the second support platform 410, the second positioning pin 411 is inserted into the second positioning hole.

[0042] In one embodiment, the second fixing component 42 includes a second fixing frame 420, a second pressing drive 421, and a second pressing component 422. The second fixing frame 420 is vertically mounted on the base 10. The second pressing component 422 is rotatably mounted on the second fixing frame 420. The fixing end of the second pressing drive 421 is mounted on the top of the second fixing frame 420, and the driving end of the second pressing drive 421 is connected to the second pressing component 422. The second pressing drive 421 is configured to drive the second pressing component 422 to rotate to a vertical or horizontal state. When the second pressing drive 421 drives the second pressing component 422 to rotate to a horizontal state, the second pressing component 422 abuts against the end face of the second sheet metal part 12, thereby cooperating with the second support platform 410 to press and fix the positioned second sheet metal part 12 and the welded first sheet metal part 11.

[0043] In one embodiment, the third support member 51 includes a third support platform 510 and a third positioning pin 511. The third support platform 510 is vertically mounted on the base 10. The third positioning pin 511 is mounted on the third support platform 510 and extends out of the support surface of the third support platform 510. The third positioning pin 511 is adapted to the third positioning hole at the bottom of the third sheet metal part 13. The third support platform 510 is configured to support the third sheet metal part 13 and the assembly. When the third sheet metal part 13 is placed on the third support platform 510, the third positioning pin 511 is inserted into the third positioning hole.

[0044] In one embodiment, the third fixing component 52 includes a third fixing frame 520, a third pressing drive 521, and a third pressing component 522. The third fixing frame 520 is vertically mounted on the base 10. The third pressing component 522 is rotatably mounted on the third fixing frame 520. The fixing end of the third pressing drive 521 is mounted on the top of the third fixing frame 520, and the driving end of the third pressing drive 521 is connected to the third pressing component 522. The third pressing drive 521 is configured to drive the third pressing component 522 to rotate to a vertical or horizontal state. When the third pressing drive 521 drives the third pressing component 522 to rotate to a horizontal state, the third pressing component 522 abuts against the end face of the third sheet metal part 13, thereby cooperating with the first support platform 310 to press and fix the positioned third sheet metal part 13 and the assembly.

[0045] In one embodiment, the first positioning mechanism 30 further includes a first detection element 33, which is mounted on the first support member 31 and has its detection surface facing the first sheet metal part 11. The first detection element 33 is configured to detect whether a nut 14 is pre-installed on the first sheet metal part 11. The third positioning mechanism 50 further includes a second detection element 53, which is mounted on the third support member 51 and has its detection surface facing the third sheet metal part 13. The second detection element 53 is configured to detect whether a nut 14 is pre-installed on the third sheet metal part 13.

[0046] As can be seen, by setting the first detection component 33 and the second detection component 53, the detection of whether the nut 14 is pre-installed on the sheet metal part can be realized without the need to add an additional detection mechanism, which simplifies the welding process and improves the efficiency of subsequent welding.

[0047] In one embodiment, a third detection element 54 is provided on the third fixing component 52. The third detection element 54 is installed at the end of the third pressing component 522. The detection end of the third detection element 54 is set towards the third sheet metal part 13. The third detection element 54 is configured to detect whether the bolts 15 are pre-installed on the third sheet metal part 13.

[0048] The above-mentioned multi-functional and high-efficiency welding workstation for automotive sheet metal parts performs the following steps during welding:

[0049] S1, the first person or robot places two sheet metal parts on the first support member 31 respectively, each first support member 31 supports and positions one first sheet metal part 11, and the first fixing component 32 presses and fixes the positioned first sheet metal part 11.

[0050] S2, welding robot 20 performs welding on the first sheet metal part 11 on the first carrier 31;

[0051] S3, after welding is completed, the transfer mechanism 60 transfers the welded first sheet metal part 11 on each first carrier 31 to the second carrier 41. The first carrier 31 carries and positions a first sheet metal part 11, and the second fixing component 42 presses and fixes the positioned first sheet metal part 11 and the second sheet metal part 12.

[0052] S4, welding robot 20 performs welding on the first sheet metal part 11 and the second sheet metal part 12 on the second carrier 41, and the welded first sheet metal part 11 and the second sheet metal part 12 are combined as a whole.

[0053] S5, the transfer mechanism 60 transfers the welded assembly located on the second carrier 41 to the third carrier 51. The third carrier 51 carries and positions the third sheet metal part 13 and the assembly. The third fixing component 52 presses and fixes the positioned third sheet metal part 13 and the assembly.

[0054] S6, welding robot 20 performs welding on the third sheet metal part 13 and the assembly on the third carrier 51.

[0055] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above examples. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional and high-efficiency welding workstation for automotive sheet metal parts, characterized in that, The multi-functional and high-efficiency welding workstation for automotive sheet metal parts includes a base and a welding robot mounted on the base, at least one first positioning mechanism, at least one second positioning mechanism, at least one third positioning mechanism, and a transfer mechanism, wherein: The first positioning mechanism includes a first bearing member and a first fixing component. The first bearing member is configured to bear and position at least one first sheet metal part. The first fixing component is located on one side of the first bearing member and is configured to press and fix the positioned first sheet metal part. The second positioning mechanism includes a second bearing member and a second fixing component. The second bearing member is configured to bear and position the second sheet metal part and the welded first sheet metal part. The second fixing component is located on one side of the second bearing member and is configured to press and fix the positioned first sheet metal part and the second sheet metal part. The third positioning mechanism includes a third bearing member and a third fixing component. The third bearing member is configured to bear and position the third sheet metal part and the welded assembly of the first sheet metal part and the second sheet metal part. The third fixing component is disposed on one side of the third bearing member and is configured to press and fix the positioned third sheet metal part and the assembly. The welding robot is configured to sequentially weld the first sheet metal part on the first carrier, the first sheet metal part and the second sheet metal part on the second carrier, and the third sheet metal part and the assembly on the third carrier; The transfer mechanism is configured to transfer the welded first sheet metal part on the first carrier to the second carrier, and the transfer mechanism is also configured to transfer the welded assembly located on the second carrier to the third carrier.

2. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 1, characterized in that, Both the first positioning mechanism and the third positioning mechanism are provided in two sets.

3. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 1, characterized in that, The first support member includes a first support platform and a first positioning pin. The first support platform is vertically mounted on the base. The first positioning pin is mounted on the first support platform and extends out of the support surface of the first support platform. The first positioning pin is adapted to the first positioning hole at the bottom of the first sheet metal part. The first support platform is configured to support the first sheet metal part. When the first sheet metal part is placed on the first support platform, the first positioning pin is inserted into the first positioning hole.

4. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 3, characterized in that, The first fixing component includes a first fixing frame, a first pressing drive, and a first pressing member. The first fixing frame is vertically mounted on the base. The first pressing member is rotatably mounted on the first fixing frame. The fixing end of the first pressing drive is mounted on the top of the first fixing frame, and the driving end of the first pressing drive is connected to the first pressing member. The first pressing drive is configured to drive the first pressing member to rotate to a vertical or horizontal state. When the first pressing drive drives the first pressing member to rotate to a horizontal state, the first pressing member abuts against the end face of the first sheet metal part, thereby cooperating with the first support platform to press and fix the positioned first sheet metal part.

5. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 1, characterized in that, The second support member includes a second support platform and a second positioning pin. The second support platform is vertically mounted on the base. The second positioning pin is mounted on the second support platform and extends out of the support surface of the second support platform. The second positioning pin is adapted to the second positioning hole at the bottom of the second sheet metal part. The second support platform is configured to support the second sheet metal part and the first sheet metal part after welding. When the second sheet metal part is placed on the second support platform, the second positioning pin is inserted into the second positioning hole.

6. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 5, characterized in that, The second fixing component includes a second fixing frame, a second pressing drive, and a second pressing member. The second fixing frame is vertically mounted on the base. The second pressing member is rotatably mounted on the second fixing frame. The fixing end of the second pressing drive is mounted on the top of the second fixing frame, and the driving end of the second pressing drive is connected to the second pressing member. The second pressing drive is configured to drive the second pressing member to rotate to a vertical or horizontal state. When the second pressing drive drives the second pressing member to rotate to a horizontal state, the second pressing member abuts against the end face of the second sheet metal part, thereby cooperating with the second support platform to press and fix the positioned second sheet metal part and the welded first sheet metal part.

7. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 3, characterized in that, The third support member includes a third support platform and a third positioning pin. The third support platform is vertically mounted on the base. The third positioning pin is mounted on the third support platform and extends out of the support surface of the third support platform. The third positioning pin is adapted to the third positioning hole at the bottom of the third sheet metal part. The third support platform is configured to support the third sheet metal part and the assembly. When the third sheet metal part is placed on the third support platform, the third positioning pin is inserted into the third positioning hole.

8. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 7, characterized in that, The third fixing assembly includes a third fixing frame, a third pressing drive, and a third pressing member. The third fixing frame is vertically mounted on the base. The third pressing member is rotatably mounted on the third fixing frame. The fixing end of the third pressing drive is mounted on the top of the third fixing frame, and the driving end of the third pressing drive is connected to the third pressing member. The third pressing drive is configured to drive the third pressing member to rotate to a vertical or horizontal state. When the third pressing drive drives the third pressing member to rotate to a horizontal state, the third pressing member abuts against the end face of the third sheet metal part, thereby cooperating with the first support platform to press and fix the positioned third sheet metal part and the assembly.

9. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 1, characterized in that, The first positioning mechanism further includes a first detection element, which is mounted on the first carrier and the detection surface of the first detection element faces the first sheet metal part. The first detection element is configured to detect whether a nut is pre-installed on the first sheet metal part. The third positioning mechanism further includes a second detection element, which is mounted on the third bearing member and has its detection surface facing the third sheet metal part. The second detection element is configured to detect whether a nut is pre-installed on the third sheet metal part.

10. The multi-functional and high-efficiency welding workstation for automotive sheet metal parts according to claim 8, characterized in that, The third fixing component is provided with a third detection element, which is installed at the end of the third pressing component. The detection end of the third detection element is set towards the third sheet metal part. The third detection element is configured to detect whether there are pre-installed bolts on the third sheet metal part.

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