A positioning device for welding workpieces

Abstract

This utility model relates to a positioning device for welding workpieces, comprising: a base plate with a central channel; a connecting base plate positioning mechanism disposed at the channel; the connecting base plate positioning mechanism including clamping members that can be relatively close to or far away from each other; the clamping members being configured to clamp the connecting base plate of a connecting plate; a set of connecting side plate positioning mechanisms disposed on both sides of the base plate, with the connecting side plate positioning mechanisms positioned close to the wide side of the base plate; the connecting side plate positioning mechanism including a gripper drive source and a gripper connected to the gripper drive source; the gripper drive source being positioned close to or far away from the connecting side plate; and a set of track body positioning mechanisms disposed on one side of the long side of the base plate; the track body positioning mechanism including a push drive source, a fourth movable plate rotatably connected to the push drive source, and a second clamping block fixed to the fourth movable plate on the side away from the push drive source; the second clamping block being configured to abut against the second web plate of the track body. This utility model ensures that the performance of the positioning device meets the requirements.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and in particular to a positioning device for welding workpieces. Background Technology

[0002] like Figure 1 As shown, the existing track 10 includes a set of track bodies 11, a set of supports 13, and multiple connecting plates 12 disposed between the track bodies 11 and the supports. The track body 11 includes an integrally formed first flange plate 111, a first web plate 112, a second flange plate 113, a second web plate 114, and a third flange plate 115. The first flange plate 111, the second flange plate 113, and the third flange plate 115 are arranged in parallel. The first web plate 112 is vertically disposed between the first flange plate 111 and the second flange plate 113, and the second web plate 114 is vertically disposed between the second flange plate 113 and the third flange plate 115. The connecting plate 12 includes an integrally formed first connecting side plate 112, a connecting bottom plate 122, and a second connecting side plate 123. The first connecting side plate 112 and the second connecting side plate 123 are located on both sides of the connecting bottom plate 122, and the connection points between the first connecting side plate 112 and the second connecting side plate 123 and the connecting bottom plate 122 are all bent transition portions. The first connecting side plate 112 and the second connecting side plate 123 respectively abut against the second web plate 114 of a set of track bodies 11. The support body 13 includes a first load-bearing plate 131, a second load-bearing plate 132, and a third load-bearing plate 133. The first load-bearing plate 131 and the third load-bearing plate 133 are arranged at an angle to the second load-bearing plate 132 on both sides of the second load-bearing plate 132. The first load-bearing plate 131 is attached to the first connecting side plate 112 or the second connecting side plate 123, the second load-bearing plate 132 is attached to the bent transition portion, and the third load-bearing plate 133 is attached to the connecting bottom plate 122.

[0003] After the track body 11, multiple connecting plates 12 and support body 13 are spliced ​​together, welding is required at the connection points between the track body 11 and the connecting plates 12, namely the contact parts of the first connecting side plate 112 and the second web plate 114, and the contact parts of the second connecting side plate 123 and the second web plate 114, as well as at the connection points between the connecting plates 12 and the support body 13, namely the contact parts of the first load-bearing plate 131 and the first connecting side plate 112, the contact parts of the first load-bearing plate 131 and the second connecting side plate 123, and the contact parts of the third load-bearing plate 133 and the connecting bottom plate 122.

[0004] for Figure 1 The track system shown encounters the following problems when using existing, commonly used positioning devices for positioning: 1. Parallelism: The tracks must remain parallel; otherwise, the stability and lifespan of the moving parts may be affected. Existing positioning devices cannot guarantee the parallelism of the tracks.

[0005] II. Fixing Stability: The track needs to be firmly fixed to the supporting structure to withstand the weight and movement of the moving parts. Existing positioning devices cannot provide sufficient fixing force, causing the track to loosen during the welding process.

[0006] 3. Vibration and Shock: The rail may be subjected to vibration or shock during the welding process. The positioning device needs to be able to withstand these forces, otherwise it may cause the rail to shift or be damaged.

[0007] IV. Adjustability: In some cases, it is necessary to adjust the position or angle of the positioning device according to the structure of the track. The positioning device needs to have sufficient adjustability to adapt to these changes. Utility Model Content

[0008] In view of the shortcomings of the prior art, this utility model discloses a positioning device for welding workpieces.

[0009] The technical solution adopted in this utility model is as follows: A positioning device for welding workpieces, comprising: The substrate has a channel in the middle; A connecting base plate positioning mechanism is provided at the channel; the connecting base plate positioning mechanism includes at least one set of clamping members that can be relatively close to or far away from each other; the clamping members are configured to clamp the connecting base plate of the connecting plate; A set of connecting side plate positioning mechanisms are disposed on both sides of the substrate and the connecting side plate positioning mechanisms are disposed close to the wide edge of the substrate; the connecting side plate positioning mechanism includes a gripper driving source and a gripper connected to the working end of the gripper driving source; the gripper driving source is configured to be close to or far from the first connecting side plate or the second connecting side plate. A set of track body positioning mechanisms is disposed on one side of the long side of the base plate; the track body positioning mechanism includes a push drive source, a fourth movable plate rotatably connected to the push drive source, and a second clamping block fixed to the fourth movable plate on the side away from the push drive source; the second clamping block is configured to abut against the second web plate of the track body.

[0010] In one embodiment of the present invention, the connecting base plate positioning mechanism includes a first horizontal drive source arranged along the positive direction of the first horizontal direction, a first movable plate connected to the working end of the first horizontal drive source, a second horizontal drive source arranged along the negative direction of the first horizontal direction, a second movable plate connected to the working end of the second horizontal drive source, a first positioning seat disposed on the first movable plate, and a third positioning seat disposed on the second movable plate; the first positioning seat and the third positioning seat are a set of clamping members that can be relatively close to or far apart.

[0011] In one embodiment of the present invention, the connecting base plate positioning mechanism further includes a first mounting plate slidably connected to the first movable plate and the second movable plate, and a lifting drive source connected to the first mounting plate.

[0012] In one embodiment of the present invention, the connecting base plate positioning mechanism further includes a second positioning seat disposed on the first movable plate and a fourth positioning seat disposed on the second movable plate; the second positioning seat and the fourth positioning seat are a set of clamping members that can be relatively close to or far apart.

[0013] In one embodiment of the present invention, the connecting side plate positioning mechanism further includes a third horizontal drive source disposed along the second horizontal direction and a steering plate connected to the working end of the third horizontal drive source; the gripper drive source is fixed to the steering plate; the working end of the third horizontal drive source faces the positive direction of the second horizontal direction, and the working end of the gripper drive source faces the negative direction of the second horizontal direction.

[0014] In one embodiment of the present invention, the connecting side plate positioning mechanism further includes a third movable plate fixedly connected to the steering plate and arranged along the second horizontal direction, a mounting block disposed on the third movable plate, and a first clamping block fixed to the mounting block; the first clamping block faces the first connecting side plate or the second connecting side plate.

[0015] In one embodiment of the present invention, the track body positioning mechanism further includes a support for mounting the push drive source; the push drive source is fixed on the support at a preset angle.

[0016] In one embodiment of the present invention, the track body positioning mechanism further includes a second mounting plate fixed to the support and a first corner cylinder fixed to the side of the second mounting plate away from the support; the first corner cylinder is configured to rotate and press the second flange plate of the track body.

[0017] In one embodiment of this utility model, a support frame positioning mechanism is further provided on the other side of the long side of the substrate and close to the connecting base plate positioning mechanism; the support frame positioning mechanism includes a second corner cylinder fixed to the substrate, a third clamping block provided on one side of the working end of the second corner cylinder, and a fourth clamping block provided close to the second corner cylinder; the second corner cylinder is configured to rotate and press the third load-bearing plate of the support body; the third clamping block is configured to abut against the third load-bearing plate; and the fourth clamping block is configured to support the third load-bearing plate.

[0018] In one embodiment of the present invention, the support frame positioning mechanism further includes a second support block and a third support block fixed to the substrate; the second support block is configured to abut against the third load-bearing plate; and the third support block is configured to support the third load-bearing plate.

[0019] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The positioning device for welding workpieces described in this utility model has the advantage of being able to simultaneously position the track body, connecting plate and support body at multiple stations, thereby improving welding accuracy and efficiency. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the existing track structure.

[0022] Figure 2 This is an exploded view of the existing orbit.

[0023] Figure 3 This is a schematic diagram of the positioning device in this utility model.

[0024] Figure 4 This is a structural schematic diagram of the connecting base plate positioning mechanism in this utility model.

[0025] Figure 5 This is a structural schematic diagram of the side plate positioning mechanism in this utility model.

[0026] Figure 6 This is a schematic diagram of the track main body positioning mechanism in this utility model.

[0027] Figure 7 This is a first-view structural schematic diagram of the track main body positioning mechanism (support not shown) in this utility model.

[0028] Figure 8 This is a second-view structural schematic diagram of the track main body positioning mechanism (support not shown) in this utility model.

[0029] Figure 9 This is a positioning diagram of the positioning device in this utility model.

[0030] Explanation of reference numerals in the instruction manual: 10. Track; 11. Track body; 111. First flange plate; 112. First web plate; 113. Second flange plate; 114. Second web plate; 115. Third flange plate; 12. Connecting plate; 121. First connecting side plate; 122. Connecting bottom plate; 123. Second connecting side plate; 13. Support body; 131. First load-bearing plate; 132. Second load-bearing plate; 133. Third load-bearing plate; 20. Connecting base plate positioning mechanism; 201. First horizontal drive source; 202. First movable plate; 203. Second horizontal drive source; 204. Second movable plate; 205. First positioning seat; 206. Second positioning seat; 207. Third positioning seat; 208. Fourth positioning seat; 209. First mounting plate; 210. Guide module; 211. Lifting drive source; 30. Connecting side plate positioning mechanism; 301. Third horizontal drive source; 302. Steering plate; 303. Gripper drive source; 304. Gripper; 305. First clamping block; 306. Mounting block; 307. Third movable plate; 308. First support block; 40. Track main body positioning mechanism; 401. Support; 402. Push drive source; 403. Connector; 404. Fourth movable plate; 405. Second clamping block; 4051. Body; 4052. First clamping part; 4053. Second clamping part; 406. Second mounting plate; 407. First angle cylinder; 50. Support frame positioning mechanism; 501. Second corner cylinder; 502. Third clamping block; 503. Fourth clamping block; 504. Second support block; 505. Third support block; 60. Substrate. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0032] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0033] In existing technologies, track welding processes often face problems such as parallelism deviation, insufficient stability, weak resistance to vibration and impact, and poor adjustment flexibility. Traditional positioning devices use a single-direction clamping structure, which cannot provide multi-directional constraints on the track body, connecting plates, and supports, leading to easy displacement of components during welding. Especially when dealing with track systems with bent transition sections and multi-web structures, existing devices struggle to simultaneously control the horizontal positioning of the connecting base plate, the vertical clamping of the connecting side plates, and the angular compression of the track body, resulting in substandard geometric accuracy of the welded track.

[0034] To address the aforementioned issues, researchers discovered the need for a three-dimensional positioning system. By decomposing the spatial positioning requirements of the track components, they designed independent yet collaborative clamping mechanisms for the connecting base plate, connecting side plates, and the track body. First, a bidirectional adjustable base plate clamping mechanism was installed in the center of the base plate to eliminate horizontal displacement of the connecting plate. Second, vertical gripper mechanisms were configured on both sides of the base plate to control the verticality during side plate welding. Finally, a counter-pressure mechanism with a rotating structure was installed on the long side to compensate for assembly errors in the track body. The spatial layout of each mechanism needs to form mutually orthogonal constraint directions to ensure that the components maintain the preset spatial relationship during welding.

[0035] Therefore, refer to Figure 3 and Figure 9 This embodiment provides a positioning device for welding workpieces, including a base plate 60 with a channel in the middle, a connecting base plate positioning mechanism 20 disposed in the channel, connecting side plate positioning mechanisms 30 disposed on both sides of the base plate 60 and close to the wide side of the base plate 60, a set of track body positioning mechanisms 40 disposed on one side of the long side of the base plate 60, and a support frame positioning mechanism 50 disposed on the other side of the long side of the base plate 60 and close to the connecting base plate positioning mechanism 20.

[0036] The base plate 60 refers to the foundation platform supporting each positioning mechanism. It can be formed by welding steel plate, and its channel design provides installation space for connecting the base plate positioning mechanism 20. In this embodiment, to describe the relationship between the various parts and components, a local coordinate system is established. The length direction of the base plate 60 is the X-axis direction, the width direction of the base plate 60 is the Y-axis direction, and the height direction of the base plate 60 is the Z-axis direction. Then, the X-axis direction is the first horizontal direction, the Y-axis direction is the second horizontal direction, and the Z-axis direction is the third horizontal direction.

[0037] Specifically, the substrate 60 serves as a positioning reference surface. The connecting base plate is bidirectionally clamped by the built-in connecting base plate positioning mechanism 20, eliminating horizontal displacement. A set of connecting side plate positioning mechanisms 30, under the action of the gripper drive source 303, clamps the connecting side plate (i.e., the first connecting side plate 121 or the second connecting side plate 123) along the direction perpendicular to the substrate 60, controlling the verticality of the welding area. The push drive source 402 on the long side drives the fourth movable plate 404 to rotate, causing the second clamping block 405 to press against the second web plate 114 of the track body 11 at an inclined angle. This track body positioning mechanism 40 can adapt to the assembly angle deviation of the second web plate 114. The horizontal, vertical, and inclined constraint directions formed by each mechanism are orthogonal to each other, establishing a three-dimensional positioning system during the welding process.

[0038] Compared with existing technologies, traditional devices use unidirectional fixing clamps, which cannot simultaneously control the spatial position of multiple components. This utility model integrates a multi-directional positioning mechanism on a base plate to achieve the coordinated effect of horizontal clamping of the connecting base plate 122, vertical clamping of the connecting side plate, and angular pressing of the track body 11.

[0039] Combination Figure 4 The connecting base plate positioning mechanism 20 includes at least one set of clamping members that can move relatively close to or away from each other. The clamping members are configured to clamp the connecting base plate 122 of the connecting plate 12. Specifically, the connecting base plate positioning mechanism 20 includes a first horizontal drive source 201 arranged along the positive direction of the first horizontal direction, a first movable plate 202 connected to the working end of the first horizontal drive source 201, a second horizontal drive source 203 arranged along the negative direction of the first horizontal direction, a second movable plate 204 connected to the working end of the second horizontal drive source 203, a first positioning seat 205 disposed on the first movable plate 202, and a third positioning seat 207 disposed on the second movable plate 204. The first positioning seat 205 and the third positioning seat 207 are a set of clamping members that can move relatively close to or away from each other.

[0040] The first horizontal drive source 201 and the second horizontal drive source 203 drive the first movable plate 202 and the second movable plate 204 to move in opposite directions, forming a symmetrical clamping action. When the first horizontal drive source 201 and the second horizontal drive source 203 are activated simultaneously, the first positioning seat 205 and the third positioning seat 207 move towards each other at the same speed, so that both sides of the connecting base plate 122 are simultaneously subjected to clamping force. The bidirectional drive mode eliminates the risk of workpiece displacement caused by unilateral drive. The two movable plates, namely the first movable plate 202 and the second movable plate 204, can move independently to adjust the clamping distance to accommodate connecting base plates 122 of different sizes. The first positioning seat 205 and the third positioning seat 207 are symmetrically arranged to form a balanced contact pressure distribution during clamping, avoiding workpiece tilting due to uneven force.

[0041] Furthermore, the connecting base plate positioning mechanism 20 also includes a first mounting plate 209 slidably connected to the first movable plate 202 and the second movable plate 204, and a lifting drive source 211 connected to the first mounting plate 209. Specifically, the first movable plate 202 and the second movable plate 204 are slidably connected to the first mounting plate 209 through the guide module 210. When moving towards or away from each other under the action of the horizontal drive source, they can maintain a stable movement trajectory along the surface of the first mounting plate 209. The working end of the lifting drive source 211 is directly connected to the bottom of the first mounting plate 209. When the lifting drive source 211 is started, it drives the first mounting plate 209 to move vertically. This structure allows the horizontal clamping action and vertical lifting adjustment of the clamping component to be independently controlled. During the clamping process, the clamping height can be adjusted in real time according to the difference in workpiece thickness, while eliminating the assembly gap caused by unevenness of the workpiece bottom surface. The guide module 210 includes a guide rail set along the first horizontal direction and a slider that slides along the guide rail. The slider and the movable plate are fixedly connected.

[0042] Furthermore, the connecting base plate positioning mechanism 20 also includes a second positioning seat 206 disposed on the first movable plate 202 and a fourth positioning seat 208 disposed on the second movable plate 204. The second positioning seat 206 and the fourth positioning seat 208 are a set of clamping members that can be relatively close to or far apart. By adding the second positioning seat 206 and the fourth positioning seat 208 to form a double clamping structure, the clamping contact area is increased to more than twice that of the prior art. At the same time, the symmetrically distributed clamping points disperse stress and avoid the risk of local deformation.

[0043] Combination Figure 5 The connecting side plate positioning mechanism 30 includes a gripper drive source 303, a gripper 304 connected to the working end of the gripper drive source 303, a third horizontal drive source 301 arranged along the second horizontal direction, and a steering plate 302 connected to the working end of the third horizontal drive source 301; the gripper drive source 303 is fixed to the steering plate 302. The gripper drive source 303 is configured to be able to approach or move away from the first connecting side plate 121 or the second connecting side plate 123. The working end of the third horizontal drive source 301 faces the positive direction of the second horizontal direction, and the working end of the gripper drive source 303 faces the negative direction of the second horizontal direction.

[0044] When the third horizontal drive source 301 pushes the steering plate 302 in the positive direction of the second horizontal direction, the gripper drive source 303 moves synchronously with the steering plate 302. Simultaneously, the action end of the gripper drive source 303 drives the gripper 304 to close in the negative direction of the second horizontal direction. This bidirectional drive mode allows the gripper 304 to apply a reverse clamping force synchronously during horizontal movement. When there is a welding angle deviation in the connecting side plate, the displacement of the third horizontal drive source 301 can compensate for the horizontal position offset of the gripper 304, while the reverse action of the gripper drive source 303 maintains the clamping force in the vertical direction. When welding thermal deformation causes displacement of the connecting side plate, the third horizontal drive source 301 can adjust the position of the steering plate 302 in real time, and the gripper drive source 303 eliminates the gap by applying a reverse force, achieving dynamic clamping.

[0045] Furthermore, the connecting side plate positioning mechanism 30 also includes a third movable plate 307 fixedly connected to the steering plate 302 and arranged along the second horizontal direction, a mounting block 306 disposed on the third movable plate 307, and a first clamping block 305 fixed to the mounting block 306. The first clamping block 305 faces the first connecting side plate 121 or the second connecting side plate 123.

[0046] The third movable plate 307 is rigidly connected to the steering plate 302 to form an integral structure. When the gripper drive source 303 drives the gripper 304 to close, the third movable plate 307 generates synchronous displacement along the second horizontal direction. The mounting block 306 is fixed to the preset position of the third movable plate 307 by bolts, so that the working surface of the first clamping block 305 always faces the clamping area of ​​the first connecting side plate 121 or the second connecting side plate 123 (hereinafter referred to as the connecting side plate). When the gripper drive source 303 drives the gripper 304 to clamp the connecting side plate, the first clamping block 305 applies a constraint force perpendicular to the second horizontal direction to the connecting side plate through the planar contact surface, forming a static positioning support. The dynamic clamping force of the gripper 304 and the static support force of the first clamping block 305 work together to form a dynamic and static combined clamping system. During welding vibration, the rigid structure of the third movable plate 307 absorbs the lateral vibration energy and prevents the gripper drive source 303 from shifting position due to vibration.

[0047] Furthermore, the connecting side plate positioning mechanism 30 also includes a first support block 308 fixed to the base plate 60. The first support block 308 is configured to adhere to and abut against the first load-bearing plate 131 of the support body 13.

[0048] Combination Figures 6 to 8The track body positioning mechanism 40 includes a drive source 402, a fourth movable plate 404 rotatably connected to the drive source 402 via a connector 403, and a second clamping block 405 fixed to the side of the fourth movable plate 404 away from the drive source 402. The second clamping block 405 is configured to abut against the second web plate 114 of the track body 11. The second clamping block 405 includes a body 4051 and a first clamping part 4052 and a second clamping part 4053 located at both ends of the body 4051.

[0049] Furthermore, the track main positioning mechanism 40 also includes a support 401 for mounting the drive source 402. The drive source 402 is fixed to the support 401 at a preset angle.

[0050] Specifically, the support 401 is rigidly connected to the long side of the base plate 60, and the drive source 402 is mounted on the support 401 at a preset angle. When the drive source 402 is activated, its actuating end drives the fourth movable plate 404 and the second clamping block 405 to move towards the track body 11. The preset angle ensures that the clamping direction of the second clamping block 405 forms a perpendicular or near-perpendicular contact with the surface of the second web plate 114. This angle-matched force application method allows the output force of the drive source 402 to be converted into an effective clamping force, avoiding force loss due to angle deviation. At the same time, the rigid structure of the support 401 can suppress the displacement of the drive source under vibration or impact, ensuring the continuous and stable transmission of the clamping force.

[0051] Furthermore, the track body positioning mechanism 40 also includes a second mounting plate 406 fixed to the support 401 and a first angle cylinder 407 fixed to the side of the second mounting plate 406 away from the support 401. The first angle cylinder 407 is configured to rotate and press against the second flange plate 113 of the track body 11.

[0052] When the drive source 402 drives the second clamping block 405 to press against the second web plate 114 via the fourth movable plate 404, the first angle cylinder 407 starts to rotate under the support of the second mounting plate 406. The pressure block at the end of the rotating arm of the first angle cylinder 407 rotates a preset angle and then presses down vertically, so that the second flange plate 113 is constrained between the pressure block and the connecting side plate. The adjustable rotation angle of the first angle cylinder 407 allows the clamping stroke to be adapted to second flange plates 113 of different thicknesses.

[0053] Combination Figure 5The support frame positioning mechanism 50 includes a second corner cylinder 501 fixed to the base plate 60, a third clamping block 502 disposed on one side of the working end of the second corner cylinder 501, and a fourth clamping block 503 disposed near the second corner cylinder 501. The second corner cylinder 501 is configured to rotate and press against the third load-bearing plate 133 of the support body 13. The third clamping block 502 is configured to abut against the third load-bearing plate 133. The fourth clamping block 503 is configured to support the third load-bearing plate 133.

[0054] When the support 13 is placed in the positioning position, the second angle cylinder 501 drives the rotating arm to press down, causing the clamping block at the end of the rotating arm of the second angle cylinder 501 to vertically press against the surface of the third load-bearing plate 133. Simultaneously, the third clamping block 502 presses against the edge of the third load-bearing plate 133, forming a horizontal constraint. The fourth clamping block 503 absorbs welding vibration energy, preventing displacement of the third load-bearing plate 133. During the welding operation, the synergistic effect of rotational clamping and multi-point clamping can counteract welding stresses in different directions.

[0055] Furthermore, the support frame positioning mechanism 50 also includes a second support block 504 and a third support block 505 fixed to the base plate 60. The second support block 504 is configured to abut against the third load-bearing plate 133. The third support block 505 is configured to support the third load-bearing plate 133.

[0056] After the horizontal bearing surface of the third support block 505 contacts the bottom surface of the third load-bearing plate 133, a stable supporting plane is formed, preventing the workpiece from sinking and deforming due to its own weight or welding stress. The second support block 504 and the third support block 505 are arranged orthogonally in space, and the clamping direction of the second support block 504 is perpendicular to the supporting direction of the third support block 505. Together, they form a two-way constraint in both the lateral and longitudinal directions. The rotational clamping force of the second corner cylinder 501 is applied to the top of the third load-bearing plate 133, forming a spatial force system in balance with the lateral limiting force of the second support block 504 and the vertical supporting force of the third support block 505.

[0057] In this embodiment, the first horizontal drive source 201, the second horizontal drive source 203, the third horizontal drive source 301 and the push drive source 402 can all be commercially available cylinders, and the cylinder models can be selected and adjusted by those skilled in the art as needed.

[0058] It should be noted that those skilled in the art can design multiple positioning devices for welding workpieces according to the length of the track 10 to be welded, thereby positioning different parts of the track 10.

[0059] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A positioning device for welding workpieces, characterized in that, include: The substrate (60) has a channel in the middle; A connecting base plate positioning mechanism (20) is provided at the channel; the connecting base plate positioning mechanism (20) includes at least one set of clamping members that can be relatively close to or far away from each other; the clamping members are configured to clamp the connecting base plate (122) of the connecting plate (12). A set of connecting side plate positioning mechanisms (30) are disposed on both sides of the substrate (60) and the connecting side plate positioning mechanisms (30) are disposed close to the wide edge of the substrate (60); the connecting side plate positioning mechanism (30) includes a gripper driving source (303) and a gripper (304) connected to the working end of the gripper driving source (303); the gripper driving source (303) is configured to be close to or away from the first connecting side plate (121) or the second connecting side plate (123); A set of track body positioning mechanisms (40) is provided on one side of the long side of the base plate (60); the track body positioning mechanism (40) includes a push drive source (402), a fourth movable plate (404) rotatably connected to the push drive source (402), and a second clamping block (405) fixed to the side of the fourth movable plate (404) away from the push drive source (402); the second clamping block (405) is configured to abut against the second web plate (114) of the track body (11).

2. The positioning device for welding workpieces according to claim 1, characterized in that, The connecting base plate positioning mechanism (20) includes a first horizontal drive source (201) arranged along the positive direction of the first horizontal direction, a first movable plate (202) connected to the working end of the first horizontal drive source (201), a second horizontal drive source (203) arranged along the negative direction of the first horizontal direction, a second movable plate (204) connected to the working end of the second horizontal drive source (203), a first positioning seat (205) provided on the first movable plate (202), and a third positioning seat (207) provided on the second movable plate (204); the first positioning seat (205) and the third positioning seat (207) are a set of clamping members that can be relatively close to or far away from each other.

3. The positioning device for welding workpieces according to claim 2, characterized in that, The connecting base plate positioning mechanism (20) further includes a first mounting plate (209) that is slidably connected to the first movable plate (202) and the second movable plate (204), and a lifting drive source (211) connected to the first mounting plate (209).

4. The positioning device for welding workpieces according to claim 2, characterized in that, The connecting base plate positioning mechanism (20) further includes a second positioning seat (206) disposed on the first movable plate (202) and a fourth positioning seat (208) disposed on the second movable plate (204); the second positioning seat (206) and the fourth positioning seat (208) are a set of clamping members that can be relatively close to or far apart.

5. The positioning device for welding workpieces according to claim 1, characterized in that, The connecting side plate positioning mechanism (30) further includes a third horizontal drive source (301) arranged along the second horizontal direction and a steering plate (302) connected to the working end of the third horizontal drive source (301); the gripper drive source (303) is fixed to the steering plate (302); the working end of the third horizontal drive source (301) faces the positive direction of the second horizontal direction, and the working end of the gripper drive source (303) faces the negative direction of the second horizontal direction.

6. The positioning device for welding workpieces according to claim 5, characterized in that, The connecting side plate positioning mechanism (30) further includes a third movable plate (307) fixedly connected to the steering plate (302) and arranged along the second horizontal direction, a mounting block (306) disposed on the third movable plate (307), and a first clamping block (305) fixed to the mounting block (306); the first clamping block (305) faces the first connecting side plate (121) or the second connecting side plate (123).

7. The positioning device for welding workpieces according to claim 1, characterized in that, The track body positioning mechanism (40) also includes a support (401) for mounting the push drive source (402); the push drive source (402) is fixed on the support (401) at a preset angle.

8. The positioning device for welding workpieces according to claim 7, characterized in that, The track body positioning mechanism (40) further includes a second mounting plate (406) fixed to the support (401) and a first corner cylinder (407) fixed to the side of the second mounting plate (406) away from the support (401); the first corner cylinder (407) is configured to rotate and press the second flange plate (113) of the track body (11).

9. The positioning device for welding workpieces according to claim 1, characterized in that, It also includes a support frame positioning mechanism (50) located on the other side of the long side of the substrate (60) and close to the connecting base plate positioning mechanism (20); the support frame positioning mechanism (50) includes a second corner cylinder (501) fixed to the substrate (60), a third clamping block (502) located on one side of the working end of the second corner cylinder (501) and a fourth clamping block (503) located close to the second corner cylinder (501); the second corner cylinder (501) is configured to rotate and press the third load-bearing plate (133) of the support body (13); the third clamping block (502) is configured to press against the third load-bearing plate (133); the fourth clamping block (503) is configured to support the third load-bearing plate (133).

10. The positioning device for welding workpieces according to claim 9, characterized in that, The support frame positioning mechanism (50) further includes a second support block (504) and a third support block (505) fixed to the base plate (60); the second support block (504) is configured to abut against the third load-bearing plate (133); the third support block (505) is configured to support the third load-bearing plate (133).

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