A positioning mechanism for sheet metal parts and a welding station

Abstract

The utility model discloses a positioning mechanism and welding workstation for sheet metal part, it includes positioning frame, first positioning subassembly and second positioning subassembly, and positioning frame is provided with the positioning table for bearing and positioning sheet metal part, and the sheet metal part includes first sheet metal body and two second sheet metal bodies, and two second sheet metal bodies are located first sheet metal body's both sides, and the end of two second sheet metal bodies extends the positioning area towards the side away from first sheet metal body, first positioning subassembly includes two first positioning units, and first positioning unit is used for carrying out positioning to first sheet metal body in horizontal direction, and second positioning subassembly includes two second positioning units, and second positioning unit is used for carrying out positioning to the positioning area of second sheet metal body in vertical direction. The above-mentioned positioning mechanism is through the cooperation of positioning table, first positioning subassembly and second positioning subassembly, and on the basis of realizing the accurate positioning to sheet metal part, greatly reduces the occupied space of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sheet metal welding positioning technology, and in particular relates to a positioning mechanism 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, it is often necessary to position irregular sheet metal parts. For irregular sheet metal parts, specific positioning devices are mostly used to position the sheet metal parts from various directions. Therefore, due to the special structure of sheet metal parts, the existing positioning devices occupy a lot of space, resulting in a large overall space occupied by the welding workstation. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning mechanism and welding workstation for sheet metal parts, so as to solve the problem that conventional positioning devices in the prior art occupy a large space.

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

[0006] In a first aspect, a positioning mechanism for sheet metal parts is provided, comprising a base, a positioning frame, a first positioning component, and a second positioning component, wherein:

[0007] The positioning frame is vertically mounted on the base. A positioning platform is provided on the top of the positioning frame. The positioning platform is configured to support and position the sheet metal part. A positioning pin is provided on the top of the positioning platform. The positioning pin is provided corresponding to the positioning hole on the bottom of the sheet metal part. When the sheet metal part is placed on the positioning platform, the end of the positioning pin passes through the positioning hole of the sheet metal part. The sheet metal part includes a first sheet metal body and two second sheet metal bodies. The two second sheet metal bodies are located on both sides of the first sheet metal body. The ends of the two second sheet metal bodies extend to the side away from the first sheet metal body and have a positioning area.

[0008] The first positioning component includes two first positioning units, which are configured to position the first sheet metal body in the horizontal direction. The second positioning component includes two second positioning units, each of which corresponds to a positioning area of ​​the second sheet metal body, and each of which is configured to position the corresponding positioning area of ​​the second sheet metal body in the vertical direction.

[0009] Furthermore, each of the first positioning units includes a first positioning seat, a first driving member, and a first positioning member. Two first positioning members are disposed on both sides of the first sheet metal body along the horizontal direction, which can be close to or far from each other. The first positioning seat is vertically mounted on the top of the base. The fixed end of the first driving member is mounted on the top of the first positioning seat. The driving end of the first driving member is connected to the first positioning member. The two first driving members are configured to drive the corresponding first positioning members to move closer to or further away from each other.

[0010] The two first driving members drive the corresponding first positioning members to move closer to each other until the two first positioning members abut against the two sides of the first sheet metal body in the horizontal direction, thereby positioning the first sheet metal body in the horizontal direction.

[0011] Furthermore, one of the first positioning members has at least one guide pin at its end, the guide pin being provided with a guide hole on the first sheet metal body, and the guide pin passing through the guide hole when the first positioning member abuts against the first sheet metal body.

[0012] Furthermore, each of the second positioning units includes a second positioning seat, a second driving member, a second positioning element, and a pressure-bearing frame, wherein:

[0013] The second positioning seat is vertically mounted on the base, the bottom of the pressure-bearing frame is detachably mounted on the top of the second positioning seat, the second positioning member is vertically and flexibly positioned directly above the top of the pressure-bearing frame, the pressure-bearing frame is configured to support the positioning area, the fixed end of the second driving member is mounted on the second positioning seat, the driving end of the second driving member is connected to the second positioning member, and the second driving member is configured to drive the second positioning member to move closer to or away from the pressure-bearing frame;

[0014] The second driving member drives the second positioning member to approach and abut against the upper surface of the positioning area, thereby cooperating with the pressure frame to position the positioning area.

[0015] Furthermore, the second positioning member is detachably provided with a limiting part, which is configured to limit the lifting stroke of the second positioning member.

[0016] Furthermore, the limiting part includes a limiting frame and a sensor. The first end of the limiting frame is detachably mounted on the second positioning member by a disassembly screw. The sensor is mounted on the second end of the limiting frame, with the detection end of the sensor facing downwards.

[0017] Furthermore, the two first positioning seats are set at different heights.

[0018] Secondly, a welding workstation is provided, the welding workstation including a welding robot and the aforementioned positioning mechanism 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.

[0019] Compared with the prior art, the advantages of the positioning mechanism for sheet metal parts are as follows:

[0020] 1) Through the cooperation of the positioning table, the first positioning component and the second positioning component, the positioning table is provided with a positioning pin. The positioning table cooperates with the positioning pin to support and position the bottom of the sheet metal part. The two first positioning units position the first sheet metal body in the horizontal direction, and the second positioning unit positions the corresponding positioning area of ​​the second sheet metal body in the vertical direction. On the basis of achieving accurate positioning of the sheet metal part, the space occupied by the equipment is greatly reduced.

[0021] 2) By setting two first driving components and first positioning components, the two first driving components drive the corresponding first positioning components to approach each other until the two first positioning components abut against the two sides of the first sheet metal body in the horizontal direction, and position the first sheet metal body in the horizontal direction. The positioning method of positioning on both sides of the first sheet metal body has good positioning effect and occupies little space.

[0022] 3) By setting a guide pin at the end of the first positioning component, when the first positioning component abuts against the first sheet metal body, the guide pin passes through the guide hole, thereby achieving precise guidance for the movement of the first positioning component and further improving the positioning accuracy. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a positioning mechanism for sheet metal parts provided in an embodiment of this utility model;

[0025] Figure 2 This is another three-dimensional structural schematic diagram of the positioning mechanism for sheet metal parts provided in this embodiment of the utility model;

[0026] Figure 3 This is a side view schematic diagram of a positioning mechanism for sheet metal parts provided in an embodiment of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the sheet metal part provided in this embodiment of the utility model. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] 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.

[0030] Firstly, a positioning mechanism for sheet metal parts is provided; please refer to [link to relevant documentation]. Figures 1 to 4As shown, in this embodiment, a positioning mechanism for sheet metal parts includes a base 10, a positioning frame 20, a first positioning component 30, and a second positioning component 40. The positioning frame 20 is vertically mounted on the base 10. A positioning platform 21 is provided on the top of the positioning frame 20. The positioning platform 21 is configured to support and position the sheet metal part 11. A positioning pin 22 is provided on the top of the positioning platform 21. The positioning pin 22 corresponds to the positioning hole 12 at the bottom of the sheet metal part 11. When the sheet metal part 11 is placed on the positioning platform 21, the end of the positioning pin 22 passes through the positioning hole 12 of the sheet metal part 11. The sheet metal part 11 includes a first sheet metal body 13 and two second sheet metal bodies 14. 4. Two second sheet metal bodies 14 are located on both sides of the first sheet metal body 13. The ends of the two second sheet metal bodies 14 extend into positioning areas 15 towards the side away from the first sheet metal body 13. The first positioning component 30 includes two first positioning units 31, which are configured to position the first sheet metal body 13 in the horizontal direction. The second positioning component 40 includes two second positioning units 41, each of which corresponds to a positioning area 15 of a second sheet metal body 14. Each second positioning unit 41 is configured to position the corresponding positioning area 15 of the second sheet metal body 14 in the vertical direction.

[0031] As can be seen, through the cooperation of the positioning platform 21, the first positioning component 30 and the second positioning component 40, the positioning platform 21 is provided with a positioning pin 22. The positioning platform 21 cooperates with the positioning pin 22 to support and position the bottom of the sheet metal part 11. The two first positioning units 31 position the first sheet metal body 13 in the horizontal direction, and the second positioning unit 41 positions the corresponding positioning area 15 of the second sheet metal body 14 in the vertical direction. On the basis of achieving accurate positioning of the sheet metal part 11, the space occupied by the equipment is greatly reduced.

[0032] In one implementation, each first positioning unit 31 includes a first positioning seat 310, a first driving member 311, and a first positioning member 312. The two first positioning members 312 are disposed on both sides of the first sheet metal body 13 along the horizontal direction, which can be close to or far from each other. The first positioning seat 310 is vertically mounted on the top of the base 10. The fixed end of the first driving member 311 is mounted on the top of the first positioning seat 310. The driving end of the first driving member 311 is connected to the first positioning member 312. The two first driving members 311 are configured to drive the corresponding first positioning member 312 to move closer to or further away from each other. The two first driving members 311 drive the corresponding first positioning member 312 to move closer to each other until the two first positioning members 312 respectively abut against both sides of the first sheet metal body 13 along the horizontal direction, thereby positioning the first sheet metal body 13 in the horizontal direction.

[0033] As can be seen, by setting two first driving components 311 and first positioning components 312, the two first driving components 311 drive the corresponding first positioning components 312 to move closer to each other until the two first positioning components 312 respectively abut against the two sides of the first sheet metal body 13 in the horizontal direction, and position the first sheet metal body 13 in the horizontal direction. The positioning method of positioning on both sides of the first sheet metal body 13 has a good positioning effect and occupies little space.

[0034] In one embodiment, at least one guide pin 313 is provided at the end of one of the first positioning members 312. The guide pin 313 is provided corresponding to the guide hole 16 on the first sheet metal body 13. When the first positioning member 312 abuts against the first sheet metal body 13, the guide pin 313 passes through the guide hole 16.

[0035] As can be seen, by setting a guide pin 313 at the end of the first positioning member 312, when the first positioning member 312 abuts against the first sheet metal body 13, the guide pin 313 passes through the guide hole 16, thereby achieving precise guidance for the movement of the first positioning member 312 and further improving the positioning accuracy.

[0036] In one embodiment, each second positioning unit 41 includes a second positioning seat 410, a second driving member 411, a second positioning member 412, and a pressure-bearing frame 413, wherein: the second positioning seat 410 is vertically mounted on the base 10, the bottom of the pressure-bearing frame 413 is detachably mounted on the top of the second positioning seat 410, the second positioning member 412 is vertically and flexibly positioned directly above the top of the pressure-bearing frame 413, the pressure-bearing frame 413 is configured to support the positioning area 15, the fixed end of the second driving member 411 is mounted on the second positioning seat 410, the driving end of the second driving member 411 is connected to the second positioning member 412, the second driving member 411 is configured to drive the second positioning member 412 to approach or move away from the pressure-bearing frame 413; the second driving member 411 drives the second positioning member 412 to approach and abut against the upper surface of the positioning area 15, thereby cooperating with the pressure-bearing frame 413 to position the positioning area 15.

[0037] Specifically, the two second positioning seats 410 have support parts extending towards one side of the sheet metal part 11, and the support parts are positioning frames 20.

[0038] Specifically, the first drive unit 311 and the second drive unit 411 can be an electric cylinder, a pneumatic cylinder, or other linear modules with similar functions.

[0039] In one embodiment, a limiting part 50 is detachably provided on the second positioning member 412, and the limiting part 50 is configured to limit the lifting stroke of the second positioning member 412.

[0040] In one embodiment, the limiting part 50 includes a limiting frame 51 and a sensor 52. The first end of the limiting frame 51 is detachably mounted on the second positioning member 412 by a disassembly screw, and the sensor 52 is mounted on the second end of the limiting frame 51 with the detection end of the sensor 52 facing downward.

[0041] In one implementation, the two first positioning seats 310 are set at different heights.

[0042] Secondly, based on the above-mentioned positioning mechanism for sheet metal parts, a welding workstation is provided. The welding workstation includes a welding robot and a positioning mechanism 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 11.

[0043] During positioning, the aforementioned positioning mechanism for sheet metal parts operates as follows: First, a person or a robot places the sheet metal part 11 on the positioning platform 21 on top of the positioning frame 20. During placement, the end of the positioning pin 22 on the positioning platform 21 passes into the positioning hole 12 at the bottom of the sheet metal part 11. Then, two first driving members 311 drive the corresponding first positioning members 312 to move closer to each other until the two first positioning members 312 abut against the two sides of the first sheet metal body 13 in the horizontal direction. One of the first positioning members 312 has a guide pin 313 at its end, which passes through the corresponding guide hole 16 on the first sheet metal body 13 to position the first sheet metal body 13 in the horizontal direction. Next, the pressure frame 413 supports the positioning area 15 of the second sheet metal body 14. The second driving member 411 drives the second positioning member 412 to move closer to and abut against the upper surface of the positioning area 15, cooperating with the pressure frame 413 to position the positioning area 15. Finally, a welding robot welds the positioned sheet metal part 11.

[0044] 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 positioning mechanism for sheet metal parts, characterized in that, The positioning mechanism for sheet metal parts includes a base, a positioning frame, a first positioning component, and a second positioning component, wherein: The positioning frame is vertically mounted on the base. A positioning platform is provided on the top of the positioning frame. The positioning platform is configured to support and position the sheet metal part. A positioning pin is provided on the top of the positioning platform. The positioning pin is provided corresponding to the positioning hole on the bottom of the sheet metal part. When the sheet metal part is placed on the positioning platform, the end of the positioning pin passes through the positioning hole of the sheet metal part. The sheet metal part includes a first sheet metal body and two second sheet metal bodies. The two second sheet metal bodies are located on both sides of the first sheet metal body. The ends of the two second sheet metal bodies extend to the side away from the first sheet metal body and have a positioning area. The first positioning component includes two first positioning units, which are configured to position the first sheet metal body in the horizontal direction. The second positioning component includes two second positioning units, each of which corresponds to a positioning area of ​​the second sheet metal body, and each of which is configured to position the corresponding positioning area of ​​the second sheet metal body in the vertical direction.

2. The positioning mechanism for sheet metal parts according to claim 1, characterized in that, Each of the first positioning units includes a first positioning seat, a first driving member, and a first positioning member. Two first positioning members are arranged on both sides of the first sheet metal body along the horizontal direction, which can be close to or far from each other. The first positioning seat is vertically installed on the top of the base. The fixed end of the first driving member is installed on the top of the first positioning seat. The driving end of the first driving member is connected to the first positioning member. Two first driving members are configured to drive the corresponding first positioning members to move closer to or further away from each other. The two first driving members drive the corresponding first positioning members to move closer to each other until the two first positioning members abut against the two sides of the first sheet metal body in the horizontal direction, thereby positioning the first sheet metal body in the horizontal direction.

3. The positioning mechanism for sheet metal parts according to claim 2, characterized in that, One of the first positioning members has at least one guide pin at its end, the guide pin being provided with a guide hole on the first sheet metal body, and the guide pin passing through the guide hole when the first positioning member abuts against the first sheet metal body.

4. The positioning mechanism for sheet metal parts according to claim 1, characterized in that, Each of the second positioning units includes a second positioning seat, a second driving member, a second positioning element, and a pressure-bearing frame, wherein: The second positioning seat is vertically mounted on the base, the bottom of the pressure-bearing frame is detachably mounted on the top of the second positioning seat, the second positioning member is vertically and flexibly positioned directly above the top of the pressure-bearing frame, the pressure-bearing frame is configured to support the positioning area, the fixed end of the second driving member is mounted on the second positioning seat, the driving end of the second driving member is connected to the second positioning member, and the second driving member is configured to drive the second positioning member to move closer to or away from the pressure-bearing frame; The second driving member drives the second positioning member to approach and abut against the upper surface of the positioning area, thereby cooperating with the pressure frame to position the positioning area.

5. The positioning mechanism for sheet metal parts according to claim 4, characterized in that, The second positioning member is detachably provided with a limiting part, which is configured to limit the lifting stroke of the second positioning member.

6. The positioning mechanism for sheet metal parts according to claim 5, characterized in that, The limiting part includes a limiting frame and a sensor. The first end of the limiting frame is detachably mounted on the second positioning member by means of a disassembly screw. The sensor is mounted on the second end of the limiting frame, with the detection end of the sensor facing downwards.

7. The positioning mechanism for sheet metal parts according to claim 2, characterized in that, The two first positioning seats are set at different heights.

8. A welding workstation, characterized in that, The welding workstation includes a welding robot and a positioning mechanism for sheet metal parts as described in any one of claims 1 to 7, 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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