A combined positioning tool and welding station for sheet metal parts

Abstract

The utility model discloses a combined positioning tool and welding workstation for sheet metal parts, and the positioning device comprises a first positioning unit, a second positioning unit, a first side driving part, a first side pressing part, a second side driving part and a second side pressing part, two first positioning units are used for positioning the first diagonal of the sheet metal part, two second positioning units are used for positioning the second diagonal of the sheet metal part, the first side driving part is used for driving the first side pressing part to abut against the upper end face of the first side, and the first side positioning frame is used for positioning the first side of the sheet metal part, the second side driving part is used for driving the second side pressing part to abut against one side of the second side, and the second side positioning frame is used for positioning the second side of the sheet metal part. The positioning device is used for positioning the first side and the second side of the sheet metal part on the basis of positioning the four corners of the sheet metal part, thereby greatly improving the stability of positioning and ensuring the welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sheet metal welding and positioning technology, and in particular relates to a combined positioning fixture and welding workstation for 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 an important component of the automobile body, the welding quality of automotive sheet metal parts directly affects the overall strength, safety, and appearance of the vehicle. In large-scale automobile production, welding workstations are usually set up. These workstations can quickly and accurately position the tooling of sheet metal parts and perform welding on the positioned sheet metal parts, thereby improving welding efficiency and quality and meeting the high-efficiency production needs of the automotive manufacturing industry.

[0003] In the process of welding automotive sheet metal parts, the positioning of large sheet metal frames is involved. For large sheet metal parts, a specific positioning device is usually required. Existing positioning devices only position the four corners of the sheet metal parts, which causes the sheet metal parts to wobble during the actual welding process. Therefore, the positioning of existing positioning devices is unstable and affects the welding effect. Utility Model Content

[0004] The purpose of this invention is to provide a combined positioning fixture and welding workstation for sheet metal parts, so as to solve the problem of poor positioning stability of conventional positioning devices in the prior art.

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

[0006] In a first aspect, a combined positioning fixture for sheet metal parts is provided, comprising a base and a first positioning part, a second positioning part, at least one set of first side positioning components, and at least one set of second side positioning components disposed on the base, wherein:

[0007] The first positioning part includes two first positioning units, which are located at the first diagonal of the sheet metal part and are configured to position the first diagonal of the sheet metal part. The second positioning part includes two second positioning units, which are located at the second diagonal of the sheet metal part and are configured to position the second diagonal of the sheet metal part.

[0008] The first side positioning assembly includes a first side positioning frame, a first side driving member, and a first side pressing member. The first side positioning frame is vertically mounted on the base. The top of the first side positioning frame is configured to support and position the first side edge of the sheet metal part along its length. The first side pressing member is vertically and flexibly positioned directly above the first side edge. The fixed end of the first side driving member is mounted on the first side positioning frame, and the driving end of the first side driving member is connected to the first side pressing member. The first side driving member is at least configured to drive the first side pressing member to descend to abut against the upper surface of the first side edge, thereby cooperating with the first side positioning frame to position the first side edge of the sheet metal part.

[0009] The second side positioning assembly includes a second side positioning frame, a second side driving member, and a second side pressing member. The second side positioning frame is vertically mounted on the base. The top of the second side positioning frame is configured to support and position the second side edge of the sheet metal part along its length. The second side pressing member is reciprocally disposed on one side of the second side edge in a horizontal direction. The fixed end of the second side driving member is mounted on the second side positioning frame, and the driving end of the second side driving member is connected to the second side pressing member. The second side driving member is at least configured to drive the second side pressing member to approach and abut against one side edge of the second side edge, thereby cooperating with the second side positioning frame to position the second side edge of the sheet metal part.

[0010] Furthermore, both the first side positioning component and the second side positioning component are provided in two sets.

[0011] Furthermore, each of the first positioning units includes a first support frame, a first positioning drive, and a first positioning element. The first support frame is vertically mounted on the base, and the top of each first support frame supports a first diagonal. The first positioning element is vertically and flexibly mounted on the first support frame. The fixed end of the first positioning drive is mounted on the top of the first support frame, and the driving end of the first positioning drive is connected to the first positioning element. The first positioning drive is configured to drive the first positioning element to a high position or a low position. Each first positioning drive drives the corresponding first positioning element to a low position, so that the first positioning element presses down and abuts against the first diagonal of the sheet metal part, thereby cooperating with the corresponding first support frame to position the first diagonal of the sheet metal part.

[0012] Furthermore, each of the second positioning units includes a second support frame, a second positioning drive, and a second positioning member. The second support frame is vertically mounted on the base, and the top of each second support frame supports a second diagonal. The second positioning member is vertically and flexibly mounted on the second support frame. The fixed end of the second positioning drive is mounted on the top of the second support frame, and the driving end of the second positioning drive is connected to the second positioning member. The second positioning drive is configured to drive the second positioning member to a high position or a low position. Each second positioning drive drives the corresponding second positioning member to a low position, so that the second positioning member presses down and abuts against the second diagonal of the sheet metal part, thereby cooperating with the corresponding second support frame to position the second diagonal of the sheet metal part.

[0013] Furthermore, the first side pressing component is provided with a first positioning pin, which is set vertically downwards. The sheet metal part is provided with a first positioning hole, and the first positioning pin is set corresponding to the first positioning hole. When the first side pressing component abuts against the upper end face of the first side, the first positioning pin passes through the first positioning hole.

[0014] Furthermore, the second side pressing component is provided with a second positioning pin, which is horizontally disposed on one side of the sheet metal component. A second positioning hole is provided on one side of the sheet metal component, and the second positioning pin is disposed corresponding to the second positioning hole. When the second side pressing component abuts against the side of the first side, the second positioning pin passes through the second positioning hole.

[0015] Furthermore, each of the two first positioning components is provided with a third positioning pin, which is set vertically downwards. The sheet metal part is provided with a third positioning hole, and the third positioning pin is set corresponding to the third positioning hole. When the first positioning component abuts against the upper end face of the first diagonal, the third positioning pin passes through the third positioning hole.

[0016] Furthermore, each of the two second positioning members is provided with a detection element, with the detection end of the detection element facing downwards. The detection element is configured to detect whether a nut is pre-installed on the sheet metal part when the second positioning member abuts against the upper end face of the second diagonal.

[0017] Secondly, a welding workstation is provided, the welding workstation including a welding robot and the above-mentioned combined positioning fixture for sheet metal parts, the welding robot being disposed on one side of the base, the welding robot being configured to perform welding on the positioned sheet metal parts.

[0018] Compared with the prior art, the advantages of the combined positioning fixture and welding workstation for sheet metal parts are as follows:

[0019] 1) Through the cooperation of the first positioning part, the second positioning part, the first side positioning component and the second side positioning component, the first positioning unit positions the first diagonal of the sheet metal part, the second positioning unit positions the second diagonal of the sheet metal part, the first side positioning component positions the first side of the sheet metal part, and the second side positioning component positions the second side of the sheet metal part. Based on the positioning of the four corners of the sheet metal part, the first side and the second side of the sheet metal part are positioned, which greatly improves the stability of the positioning and ensures the subsequent welding quality.

[0020] 2) By setting two sets of first-side positioning components and two sets of second-side positioning components, the positioning stability of sheet metal parts is further improved;

[0021] 3) By setting up a detection component, the detection component can detect whether a nut is pre-installed on the sheet metal part when the second positioning component abuts against the upper end face of the second diagonal, which simplifies the welding process and improves the efficiency of subsequent welding. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the combined positioning fixture for sheet metal parts provided in this embodiment of the utility model;

[0024] Figure 2 This is a top view schematic diagram of a combined positioning fixture for sheet metal parts provided in an embodiment of this utility model;

[0025] Figure 3 This is another three-dimensional structural schematic diagram of the combined positioning fixture for sheet metal parts provided in this embodiment of the utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the sheet metal part provided in this embodiment of the utility model. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] 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.

[0029] Firstly, a modular positioning fixture for sheet metal parts is provided; please refer to [reference needed]. Figures 1 to 4As shown, in this embodiment, a combined positioning fixture for sheet metal parts includes a base 10 and a first positioning part 20, a second positioning part 30, at least one set of first side positioning components 40, and at least one set of second side positioning components 50 disposed on the base 10. The first positioning part 20 includes two first positioning units located at a first diagonal 61 of the sheet metal part 60, configured to position the first diagonal 61 of the sheet metal part 60. The second positioning part 30 includes two second positioning units. The second positioning unit is located at the second diagonal 62 of the sheet metal part 60. The two second positioning units are configured to position the second diagonal 62 of the sheet metal part 60. The first side positioning assembly 40 includes a first side positioning frame 41, a first side driving member 42, and a first side pressing member 43. The first side positioning frame 41 is vertically mounted on the base 10. The top of the first side positioning frame 41 is configured to support and position the first side 63 of the sheet metal part 60 along its length. The first side pressing member 43 is vertically and flexibly positioned directly above the first side 63. The first side driving member... The fixed end of the first side drive member 42 is mounted on the first side positioning frame 41. The drive end of the first side drive member 42 is connected to the first side pressing member 43. The first side drive member 42 is configured to drive the first side pressing member 43 to descend and abut against the upper end surface of the first side edge 63, thereby cooperating with the first side positioning frame 41 to position the first side edge 63 of the sheet metal part 60. The second side positioning assembly 50 includes a second side positioning frame 51, a second side drive member 52, and a second side pressing member 53. The second side positioning frame 51 is vertically mounted on the base 10. The top of the second side positioning frame 51... The part is configured to support and position the second side 64 of the sheet metal part 60 along its length. The second side pressing member 53 is reciprocally disposed on one side of the second side 64 in the horizontal direction. The fixed end of the second side driving member 52 is mounted on the second side positioning frame 51. The driving end of the second side driving member 52 is connected to the second side pressing member 53. The second side driving member 52 is at least configured to drive the second side pressing member 53 to approach and abut against one side of the second side 64, thereby cooperating with the second side positioning frame 51 to position the second side 64 of the sheet metal part 60.

[0030] It should be noted that the sheet metal part 60 of this application is large in volume. The sheet metal part 60 includes a base plate 65 and a flange 66. The flange 66 is set on the periphery of the base plate 65 and turns outward. The base plate 65 has positioning holes and nuts are pre-installed on the surface of the base plate 65.

[0031] Specifically, both the first side drive unit 42 and the second side drive unit 52 can be electric cylinders, pneumatic cylinders, or other linear modules with similar functions.

[0032] As can be seen, through the cooperation of the first positioning part 20, the second positioning part 30, the first side positioning component 40, and the second side positioning component 50, the first positioning unit positions the first diagonal 61 of the sheet metal part 60, the second positioning unit positions the second diagonal 62 of the sheet metal part 60, the first side positioning component 40 positions the first side 63 of the sheet metal part 60, and the second side positioning component 50 positions the second side 64 of the sheet metal part 60. Based on the positioning of the four corners of the sheet metal part 60, the first side 63 and the second side 64 of the sheet metal part 60 are positioned, which greatly improves the stability of the positioning and ensures the subsequent welding quality.

[0033] In one implementation, both the first side positioning component 40 and the second side positioning component 50 are provided in two sets.

[0034] It can be seen that by setting two sets of first-side positioning components 40 and two sets of second-side positioning components 50, the positioning stability of the sheet metal part 60 is further improved.

[0035] In one implementation, each first positioning unit includes a first support frame 21, a first positioning drive 22, and a first positioning member 23. The first support frame 21 is vertically mounted on the base 10. The top of each first support frame 21 supports a first diagonal 61. The first positioning member 23 is vertically mounted on the first support frame 21. The fixed end of the first positioning drive 22 is mounted on the top of the first support frame 21. The driving end of the first positioning drive 22 is connected to the first positioning member 23. The first positioning drive 22 is configured to drive the first positioning member 23 to a high position or a low position. Each first positioning drive 22 drives the corresponding first positioning member 23 to a low position, so that the first positioning member 23 presses down and abuts against the first diagonal 61 of the sheet metal part 60, thereby cooperating with the corresponding first support frame 21 to position the first diagonal 61 of the sheet metal part 60.

[0036] In one embodiment, each second positioning unit includes a second support frame 31, a second positioning drive 32, and a second positioning member 33. The second support frame 31 is vertically mounted on the base 10. The top of each second support frame 31 supports a second diagonal 62. The second positioning member 33 is vertically mounted on the second support frame 31. The fixed end of the second positioning drive 32 is mounted on the top of the second support frame 31. The driving end of the second positioning drive 32 is connected to the second positioning member 33. The second positioning drive 32 is configured to drive the second positioning member 33 to a high position or a low position. Each second positioning drive 32 drives the corresponding second positioning member 33 to a low position, so that the second positioning member 33 is pressed down and abuts against the second diagonal 62 of the sheet metal part 60, thereby cooperating with the corresponding second support frame 31 to position the second diagonal 62 of the sheet metal part 60.

[0037] Specifically, both the first positioning drive component 22 and the second positioning drive component 32 can be electric cylinders, pneumatic cylinders, or other linear modules with similar functions.

[0038] In one embodiment, a first positioning pin 44 is provided on the first side pressing member 43, the first positioning pin 44 is set vertically downward, and a first positioning hole 67 is opened on the sheet metal part 60. The first positioning pin 44 is set corresponding to the first positioning hole 67. When the first side pressing member 43 abuts against the upper end surface of the first side 63, the first positioning pin 44 passes into the first positioning hole 67.

[0039] In one embodiment, a second positioning pin 54 is provided on the second side pressing member 53. The second positioning pin 54 is horizontally disposed on one side of the sheet metal part 60. A second positioning hole 68 is provided on one side of the sheet metal part 60. The second positioning pin 54 is disposed corresponding to the second positioning hole 68. When the second side pressing member 53 abuts against the side of the first side 63, the second positioning pin 54 passes into the second positioning hole 68.

[0040] In one implementation, each of the two first positioning members 23 is provided with a third positioning pin 24, which is set vertically downward. The sheet metal part 60 is provided with a third positioning hole 69, and the third positioning pin 24 is set corresponding to the third positioning hole 69. When the first positioning member 23 abuts against the upper end face of the first diagonal 61, the third positioning pin 24 passes into the third positioning hole 69.

[0041] In one implementation, each of the two second positioning members 33 is provided with a detection member 34, with the detection end of the detection member 34 facing downward. The detection member 34 is configured to detect whether a nut is pre-installed on the sheet metal part 60 when the second positioning member 33 abuts against the upper end face of the second diagonal 62.

[0042] As can be seen, by setting up the detection component 34, the detection component 34 can detect whether a nut is pre-installed on the sheet metal part 60 when the second positioning component 33 abuts against the upper end face of the second diagonal 62, which simplifies the welding process and improves the efficiency of subsequent welding.

[0043] Secondly, based on the above-mentioned combined positioning fixture for sheet metal parts, a welding workstation is provided. The welding workstation includes a welding robot and the above-mentioned combined positioning fixture for sheet metal parts. The welding robot is disposed on one side of the base 10 and is configured to perform welding on the positioned sheet metal parts 60.

[0044] When the above-mentioned combined positioning fixture for sheet metal parts is in operation: First, a person or a robot places the sheet metal part 60 on the base 10; second, each first positioning drive 22 drives the corresponding first positioning member 23 to the lowest position, so that the first positioning member 23 presses down and abuts against the first diagonal 61 of the sheet metal part 60, and cooperates with the corresponding first support frame 21 to position the first diagonal 61 of the sheet metal part 60; each second positioning drive 32 drives the corresponding second positioning member 33 to the lowest position, so that the second positioning member 33 presses down and abuts against the second diagonal 62 of the sheet metal part 60. The first side drive 42 drives the first side pressing 43 to descend and abut against the upper surface of the first side 63, thereby cooperating with the first side positioning frame 41 to position the first side 63 of the sheet metal part 60. The second side drive 52 drives the second side pressing 53 to approach and abut against one side of the second side 64, thereby cooperating with the second side positioning frame 51 to position the second side 64 of the sheet metal part 60. Finally, the welding robot welds the positioned sheet metal part 60.

[0045] 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 modular positioning fixture for sheet metal parts, characterized in that, The combined positioning fixture for sheet metal parts includes a base and a first positioning part, a second positioning part, at least one set of first side positioning components, and at least one set of second side positioning components disposed on the base, wherein: The first positioning part includes two first positioning units, which are located at the first diagonal of the sheet metal part and are configured to position the first diagonal of the sheet metal part. The second positioning part includes two second positioning units, which are located at the second diagonal of the sheet metal part and are configured to position the second diagonal of the sheet metal part. The first side positioning assembly includes a first side positioning frame, a first side driving member, and a first side pressing member. The first side positioning frame is vertically mounted on the base. The top of the first side positioning frame is configured to support and position the first side edge of the sheet metal part along its length. The first side pressing member is vertically and flexibly positioned directly above the first side edge. The fixed end of the first side driving member is mounted on the first side positioning frame, and the driving end of the first side driving member is connected to the first side pressing member. The first side driving member is at least configured to drive the first side pressing member to descend to abut against the upper surface of the first side edge, thereby cooperating with the first side positioning frame to position the first side edge of the sheet metal part. The second side positioning assembly includes a second side positioning frame, a second side driving member, and a second side pressing member. The second side positioning frame is vertically mounted on the base. The top of the second side positioning frame is configured to support and position the second side edge of the sheet metal part along its length. The second side pressing member is reciprocally disposed on one side of the second side edge in a horizontal direction. The fixed end of the second side driving member is mounted on the second side positioning frame, and the driving end of the second side driving member is connected to the second side pressing member. The second side driving member is at least configured to drive the second side pressing member to approach and abut against one side edge of the second side edge, thereby cooperating with the second side positioning frame to position the second side edge of the sheet metal part.

2. The modular positioning fixture for sheet metal parts of claim 1, wherein, Both the first side positioning component and the second side positioning component are provided in two sets.

3. The modular positioning fixture for sheet metal parts of claim 1, wherein, Each of the first positioning units includes a first support frame, a first positioning drive, and a first positioning element. The first support frame is vertically mounted on the base. The top of each first support frame supports a first diagonal. The first positioning element is vertically mounted on the first support frame. The fixed end of the first positioning drive is mounted on the top of the first support frame. The driving end of the first positioning drive is connected to the first positioning element. The first positioning drive is configured to drive the first positioning element to a high position or a low position. Each first positioning drive drives the corresponding first positioning element to a low position, so that the first positioning element presses down and abuts against the first diagonal of the sheet metal part, thereby cooperating with the corresponding first support frame to position the first diagonal of the sheet metal part.

4. The modular positioning fixture for sheet metal parts of claim 1, wherein, Each second positioning unit includes a second support frame, a second positioning drive, and a second positioning element. The second support frame is vertically mounted on the base. The top of each second support frame supports a second diagonal. The second positioning element is vertically and flexibly mounted on the second support frame. The fixed end of the second positioning drive is mounted on the top of the second support frame, and the driving end of the second positioning drive is connected to the second positioning element. The second positioning drive is configured to drive the second positioning element to a high or low position. Each second positioning drive drives the corresponding second positioning element to a low position, so that the second positioning element presses down and abuts against the second diagonal of the sheet metal part, thereby cooperating with the corresponding second support frame to position the second diagonal of the sheet metal part.

5. The modular positioning fixture for sheet metal parts of claim 1, wherein, The first side pressing component is provided with a first positioning pin, which is set vertically downward. The sheet metal part is provided with a first positioning hole, and the first positioning pin is set corresponding to the first positioning hole. When the first side pressing component abuts against the upper end surface of the first side, the first positioning pin passes through the first positioning hole.

6. The modular positioning fixture for sheet metal parts of claim 1, wherein, The second side pressing component is provided with a second positioning pin, which is horizontally disposed on one side of the sheet metal component. A second positioning hole is provided on one side of the sheet metal component, and the second positioning pin is disposed corresponding to the second positioning hole. When the second side pressing component abuts against the side of the first side, the second positioning pin passes through the second positioning hole.

7. The modular positioning fixture for sheet metal parts of claim 3, wherein, Each of the two first positioning members is provided with a third positioning pin, which is set vertically downward. The sheet metal part is provided with a third positioning hole, and the third positioning pin is set corresponding to the third positioning hole. When the first positioning member abuts against the upper end face of the first diagonal, the third positioning pin passes through the third positioning hole.

8. The modular positioning fixture for sheet metal parts of claim 4, wherein, Both of the second positioning members are provided with detection elements, with the detection end of the detection element facing downwards. The detection element is configured to detect whether a nut is pre-installed on the sheet metal part when the second positioning member abuts against the upper end face of the second diagonal.

9. A welding station characterized by, The welding workstation includes a welding robot and a combined positioning fixture for sheet metal parts as described in any one of claims 1 to 8, wherein the welding robot is disposed on one side of the base and is configured to perform welding on the positioned sheet metal parts.

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