Workpiece welding and positioning operation platform

Abstract

The utility model relates to the technical field of welding operation platforms, in particular to a workpiece welding positioning operation platform. Plates of workpieces are accurately positioned one by one through the positioning assembly on the operation platform, the positioning frame is arranged on the second supporting plate in a split mode, the Y-direction positioning protrusion is arranged on the positioning plate, and when it is found that errors exist in the position of the transverse plate in the horizontal direction, the sizes of the positioning frame and the positioning protrusion can be flexibly adjusted; the position precision of the transverse plate on the vertical plate is guaranteed, the positioning frame in split design can be flexibly detached and replaced, the second supporting plate does not need to be wholly replaced, and the use cost of the operation platform and the manufacturing cost of the frame body are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding processing operation platforms, in particular to a workpiece welding positioning operation platform. Background Art

[0002] With the development of science and technology, people have put forward higher and higher requirements for the processing accuracy of mechanical products. Welding is a common processing method in the field of mechanical processing. Usually, medium and large workpieces are difficult to process and shape in one go, and they are often pre-assembled in blocks and then welded into a whole. During the welding process, the operator first assembles the workpiece sheet and then welds each connection surface.

[0003] The corresponding workpieces for this application are Figure 1 The figure includes: a bottom plate 2, a pair of vertical plates 3, and a horizontal plate 4. The vertical plates 3 are vertically overlapped on the bottom plate 2, and the horizontal plates 4 are overlapped on the pair of vertical plates 3. Since the horizontal plate 4 is mounted above the bottom plate 2 and is at the end of each plate during positioning, the cumulative positioning error is the largest. When the operator positions the horizontal plate 4 in the horizontal direction, it is necessary to first set up a vertical frame, and set a positioning structure adapted to the edge of the horizontal plate 4 on the frame. Traditional positioning parts use an integrated plate, which is integrally fitted with the edge of the horizontal plate 4 to ensure the accuracy of the positioning of the horizontal plate 4. However, this structure will lead to high manufacturing costs for the frame, and it is difficult to flexibly adjust errors. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a workpiece welding positioning operation platform to solve the technical problems that the positioning frame has high manufacturing cost and errors are difficult to flexibly adjust.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A workpiece welding positioning operation platform, used for overlapping and positioning the sheet materials to be welded, characterized in that: it comprises a frame, the frame is provided with a mounting plate, the sheet materials comprise: a bottom plate, a pair of vertical plates, and a horizontal plate, the vertical plates are vertically overlapped on the bottom plate, and the horizontal plates are overlapped on the pair of vertical plates; the frame is provided with a first positioning component and a second positioning component in the Y and X directions respectively, the first positioning components are arranged in pairs, the first positioning components comprise: a pair of positioning vertical plates, the positioning vertical plates are affixed with the vertical plates in the Y direction, the positioning vertical plates are provided with a first X-direction positioning convex and a Y-direction positioning convex, the first X-direction The positioning protrusion is attached to the vertical plate in the X direction, and the Y direction positioning protrusion is arranged on the upper end of the positioning vertical plate, and the Y direction positioning protrusion is attached to the edge of the horizontal plate in the Y direction; the second positioning assembly includes: a pair of support plates, the pair of support plates are respectively a first support plate and a second support plate, and the support plates are provided with a second X direction positioning protrusion, and the second X direction positioning protrusion is attached to the edge of the horizontal plate in the X direction, and the second X direction positioning protrusion includes a first convex portion and a second convex portion, the first convex portion is extended on the first support plate, a positioning frame is fixed on one side of the second support plate, and the second convex portion is arranged on the positioning frame.

[0007] Based on the above structure, a workpiece welding positioning operation platform of the present application is provided, wherein the bottom plate is placed on the upper end of the mounting plate, and then a pair of vertical plates are respectively placed upright on the upper end of the bottom plate, and the vertical plates are respectively fitted with the corresponding positioning vertical plates, the positioning vertical plates are used for positioning the vertical plates in the Y direction, and then the vertical plates are adjusted along the X direction so that their ends respectively bear against the corresponding first X-direction positioning protrusions, the first X-direction positioning protrusions are used for positioning the vertical plates in the X direction, and after completing the positioning of the vertical plates, the contact surface between the bottom plate and the vertical plates is welded and fixed; then the cross plate is horizontally placed on the vertical plates, and the position of the cross plate is adjusted so that its edges respectively fit with the Y-direction positioning protrusions, the first protrusions, and the second protrusions, and the positioning of the cross plate in the Y and X directions is completed, and then the contact surface between the cross plate and the vertical plate is welded and fixed to complete the production of the workpiece. The simple structure of the Y-direction positioning protrusions, the first protrusions, and the second protrusions can reduce the manufacturing cost of the positioning platform. By setting a positioning frame on the second support plate and setting a second protrusion on the positioning frame, when it is found that there is an error in the horizontal position of the cross plate, the size of the positioning frame can be adjusted to improve the positioning accuracy of the second protrusion and the cross plate, so as to ensure the position accuracy of the cross plate on the vertical plate, so as to achieve flexible adjustment of the positioning structure.

[0008] Furthermore, in a workpiece welding positioning operation platform in the present application, a positioning protrusion is provided on the mounting plate, and the position of the positioning protrusion corresponds to the positioning hole on the workpiece bottom plate. As a preferred solution of the present application, the positioning protrusion in a workpiece welding positioning operation platform in the present application is used to accurately position the bottom plate to prevent the bottom plate from shifting during the welding process.

[0009] Furthermore, in the present application, a workpiece welding positioning operation platform is provided, wherein a rotating seat is hinged on the frame, and the first positioning component is fixed on the rotating seat; it also includes a first linear drive device, wherein the fixed end of the first linear drive device is hinged on the frame, and the movable end of the first linear drive device is hinged to the rotating seat, and the first linear drive device is used to drive the rotating seat to rotate on the frame, so as to drive the corresponding first positioning component to switch from a closed state to an open state; when the first positioning component is in an open state, the welded workpiece can be moved out from the open side, and when the first positioning component is in a closed state, it is used to position the corresponding sheet material. As a preferred embodiment of the present application, the first positioning component in a workpiece welding positioning operation platform of the present application drives the rotating seat to rotate around a first rotating shaft provided on the frame through the extension and retraction of the first linear drive device, thereby making the first positioning component on the rotating seat away from the frame, so as to facilitate the workpiece to be moved out from the Y direction.

[0010] Furthermore, a workpiece welding positioning operating platform in the present application also includes a second linear drive device, the fixed end of the second linear drive device is hinged to the frame, and the movable end of the second linear drive device is hinged to the second positioning component; the second positioning component is rotatably connected to the frame, and the second linear drive device is used to drive the second positioning component to rotate on the frame to drive the second positioning component to switch from a closed state to an open state; when the second positioning component is in an open state, the welded workpiece can be moved out from the open side, and when the second positioning component is in a closed state, it is used to position the corresponding sheet material. As a preferred embodiment of the present application, the second positioning component in a workpiece welding positioning operating platform of the present application drives the second positioning component to rotate around a second rotating shaft set on the frame through the extension and retraction of the second linear drive device, so that the second positioning component is away from the frame, which facilitates the workpiece to be moved out from the X direction.

[0011] Furthermore, in a workpiece welding positioning operation platform in the present application, the liftable rolling assembly includes a lifting frame and a lifting drive device, the lifting frame is inserted through the mounting plate, the liftable rolling assembly is embedded with balls, the lifting drive device is fixed under the mounting plate, and the movable end of the lifting drive device is connected to the bottom of the lifting frame. As a preferred embodiment of the present application, the liftable rolling assembly in a workpiece welding positioning operation platform in the present application is used for when the workpiece welding process is completed, the lifting drive device drives the lifting frame to rise and receive the workpiece, so that the bottom of the bottom plate is higher than the positioning protrusion, at this time, the operator can push the workpiece to move out along the balls.

[0012] Further, in the present application, a workpiece welding positioning operation platform, the positioning frame includes a horizontal fixing plate, the horizontal fixing plate is arranged outside the second support plate, the horizontal fixing plate is fixedly connected to the second support plate, the horizontal fixing plate is provided with a positioning support plate on the side away from the second support plate, the positioning support plate is fixedly connected to the horizontal fixing plate, a vertical fixing plate is arranged between the positioning support plate and the second support plate, the two sides of the vertical fixing plate are respectively fixedly connected to the positioning support plate and the second support plate, and the second convex portion is extended on the positioning support plate. As a preferred solution of the present application, the positioning frame in the workpiece welding positioning operation platform of the present application is used to flexibly adjust the horizontal position of the horizontal plate, improve the positioning accuracy of the second convex portion and the horizontal plate, and ensure the accurate connection position of the horizontal plate and the vertical plate. The positioning frame and the second support plate adopt a split design structure, so that when there is an error in the horizontal position of the horizontal plate, the operator can immediately disassemble the positioning frame and flexibly adjust the size of the positioning frame to eliminate the error in the horizontal direction of the horizontal plate without replacing the second support plate as a whole, thereby reducing the use cost of the operating platform and the manufacturing cost of the frame.

[0013] Furthermore, in a workpiece welding positioning operation platform in the present application, the Y-direction positioning protrusion is fixed on the side of the positioning vertical plate away from the vertical plate. As a preferred solution of the present application, the Y-direction positioning protrusion in a workpiece welding positioning operation platform in the present application, together with the first X-direction positioning protrusion, flexibly adjusts the horizontal position of the horizontal plate. When it is found that there is an error in the horizontal position of the horizontal plate, the operator can flexibly adjust the size of the Y-direction positioning protrusion according to the needs to eliminate the error in the horizontal direction of the horizontal plate, without replacing the positioning vertical plate as a whole, thereby reducing the use cost of the operation platform and the manufacturing cost of the frame.

[0014] Furthermore, in a workpiece welding positioning operating platform in the present application, a hand push frame is fixedly provided on the same side of the frame and the second positioning component that is movably arranged, the hand push frame includes a cross bar, and casters are provided at the bottom of the frame, and the casters are used to move the operating platform. As a preferred embodiment of the present application, the hand push frame in a workpiece welding positioning operating platform in the present application works together with the casters to move the operating platform, and the operator can shift the operating platform according to the needs of the operation.

[0015] Furthermore, in a workpiece welding positioning operation platform in the present application, a storage cavity is provided on the inner side of the cross bar corresponding to the hand push frame, and the storage cavity is used to accommodate the second positioning component when it is rotated to an open state. As a preferred solution of the present application, the storage cavity in a workpiece welding positioning operation platform in the present application is always on the inner side of the cross bar during the rotation process, so as to prevent the operator from mistakenly entering the activity space of the second positioning component when the second positioning component rotates, thereby causing harm to the operator.

[0016] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0017] The utility model provides a workpiece welding positioning operation platform, by separately arranging a positioning frame on the second supporting plate, and arranging a Y-direction positioning convex on the positioning plate, when it is found that there is an error in the horizontal position of the horizontal plate, the sizes of the positioning frame and the positioning convex can be flexibly adjusted to ensure the position accuracy of the horizontal plate on the vertical plate, and the positioning frame with a split design can be flexibly disassembled and replaced without replacing the second supporting plate as a whole, thereby reducing the use cost of the operation platform and the manufacturing cost of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a three-dimensional structure of a formed workpiece corresponding to a workpiece welding positioning operation platform in an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of a three-dimensional structure of a workpiece welding positioning operation platform in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of a workpiece welding positioning operation platform after a workpiece is placed in an embodiment of the present application;

[0021] Figure 4 An exploded view of a workpiece welding positioning operation platform in an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of a workpiece welding positioning operation platform in an embodiment of the present application, viewed from above;

[0023] Figure 6 This is a schematic diagram of the structure of the first positioning component corresponding to the active side in the embodiment of the present application;

[0024] Figure 7 This is a schematic diagram of the structure of the second positioning component corresponding to the active side in the embodiment of the present application;

[0025] Figure 8 This is a schematic diagram of the structure of a liftable rolling component of a workpiece welding positioning operation platform in an embodiment of the present application;

[0026] In the figure: 1-frame; 11-mounting plate; 111-positioning convex part; 13-liftable rolling assembly; 131-lifting frame; 132-ball; 133-lifting drive device; 14-hand push frame; 140-storage cavity; 141-cross bar; 142-side bar; 15-castor; 2-bottom plate; 3-vertical plate; 4-cross plate; 6-first positioning assembly; 61-positioning vertical plate; 62-first X-direction positioning convex; 63-Y-direction positioning convex; 7-second positioning assembly; 70-second X-direction positioning convex; 701-first convex part; 702-second convex part; 71-support plate; 711-first support plate; 712-second support plate; 72-positioning frame; 721-horizontal fixing plate; 722-vertical fixing plate; 723-positioning support plate; 8-rotating seat; 9-first linear drive device; 10-second linear drive device. DETAILED DESCRIPTION Example

[0027] like Figure 2 , 3 As shown, a workpiece welding positioning operation platform is used for overlapping and positioning the sheet materials to be welded, characterized in that: it includes a frame 1, the frame 1 is provided with a mounting plate 11, the sheet materials include: a bottom plate 2, a pair of vertical plates 3, and a horizontal plate 4, the vertical plate 3 is vertically overlapped on the bottom plate 2, and the horizontal plate 4 is overlapped on the pair of vertical plates 3; the frame 1 is provided with a first positioning component 6 and a second positioning component 7 in the Y and X directions respectively, the first positioning component 6 is arranged in pairs, and the first positioning component 6 includes: a pair of positioning vertical plates 61, the positioning vertical plates 61 are affixed with the vertical plates 3 in the Y direction, the positioning vertical plates 61 are provided with a first X-direction positioning protrusion 62 and a Y-direction positioning protrusion 63, the first X-direction positioning protrusion 62 is affixed in the X direction The second positioning assembly 7 comprises: a pair of support plates 71, wherein the pair of support plates 71 are respectively a first support plate 711 and a second support plate 712, and a second X-direction positioning protrusion 70 is arranged on the support plate 71, and the second X-direction positioning protrusion 70 is in contact with the edge of the horizontal plate 4 in the X direction. The second X-direction positioning protrusion 70 comprises a first convex portion 701 and a second convex portion 702, and the first convex portion 701 is extended on the first support plate 711, and a positioning frame 72 is fixed on one side of the second support plate 712, and the second convex portion 702 is arranged on the positioning frame 72.

[0028] like Figure 1 As shown, in this embodiment, the workpiece plate includes a bottom plate 2, a pair of vertical plates 3, and a pair of horizontal plates 4.

[0029] In this embodiment, a positioning protrusion 111 is provided on the mounting plate 11 , and the position of the positioning protrusion 111 corresponds to the positioning hole on the workpiece bottom plate 2 .

[0030] In this embodiment, four positioning protrusions 111 are provided on the mounting plate 11 .

[0031] like Figure 5 , 6 As shown, in this embodiment, a rotating seat 8 is hinged on the frame 1, and the first positioning component 6 is fixed on the rotating seat 8; it also includes a first linear drive device 9, a fixed end of the first linear drive device 9 is hinged to the frame 1, and a movable end of the first linear drive device 9 is hinged to the rotating seat 8. The first linear drive device 9 is used to drive the rotating seat 8 to rotate on the frame 1 to drive the corresponding first positioning component 6 to switch from a closed state to an open state; when the first positioning component 6 is in an open state, the welded workpiece can be moved out from the open side, and when the first positioning component 6 is in a closed state, it is used to position the corresponding sheet material.

[0032] In this embodiment, the first linear drive device 9 is a cylinder. When the first positioning assembly 6 on the rotating seat 8 is in a closed state, the movable end stroke of the first linear drive device 9 reaches a preset maximum stroke, otherwise, it is in an open state.

[0033] As shown in Figures 5 and 7, in this embodiment, a second linear drive device 10 is further included. The fixed end of the second linear drive device 10 is hinged to the frame 1, and the movable end of the second linear drive device 10 is hinged to the second positioning assembly 7; the second positioning assembly 7 is rotatably connected to the frame 1, and the second linear drive device 10 is used to drive the second positioning assembly 7 to rotate on the frame 1, so as to drive the second positioning assembly 7 to switch from a closed state to an open state; when the second positioning assembly 7 is in an open state, the welded workpiece can be moved out from the open side, and when the second positioning assembly 7 is in a closed state, it is used to position the corresponding sheet material.

[0034] In this embodiment, the second linear drive device 10 adopts a cylinder, and the second positioning components 7 are arranged in pairs for welding processing positioning of a pair of transverse plates 4, wherein one second positioning component 7 is fixed on the mounting plate 11, and the other second positioning component 7 is rotatably connected to the frame 1.

[0035] like Figure 8 As shown, in this embodiment, it also includes a liftable rolling component 13, and the liftable rolling component 13 includes a lifting frame 131 and a lifting drive device 133. The lifting frame 131 is penetrated on the mounting plate 11, and the liftable rolling component 13 is embedded with a ball 132. The lifting drive device 133 is fixed under the mounting plate 11, and the movable end of the lifting drive device 133 is connected to the bottom of the lifting frame 131.

[0036] In this embodiment, the lifting drive device 133 uses four pneumatic cylinders and two lifting frames 131 , and each lifting frame 131 is provided with three balls 132 .

[0037] In this embodiment, the positioning frame 72 includes a horizontal fixing plate 721, which is arranged on the outer side of the second support plate 712. The horizontal fixing plate 721 is fixedly connected to the second support plate 712. The horizontal fixing plate 721 is provided with a positioning support plate 723 on the side away from the second support plate 712. The positioning support plate 723 is fixedly connected to the horizontal fixing plate 721. A vertical fixing plate 722 is provided between the positioning support plate 723 and the second support plate 712. The two sides of the vertical fixing plate 722 are respectively fixedly connected to the positioning support plate 723 and the second support plate 712, and the second protrusion 702 is extended on the positioning support plate 723.

[0038] In this embodiment, the horizontal fixing plate 721 is horizontally arranged on the outside of the second support plate 712, the bottom of the positioning support plate 723 is fixedly connected to the end of the horizontal fixing plate 721 away from the second support plate 712, and the vertical fixing plate 722 is vertically arranged between the positioning support plate 723 and the second support plate 712.

[0039] In this embodiment, the Y-direction positioning protrusion 63 is fixed on the side of the positioning vertical plate 61 away from the vertical plate 3 .

[0040] In this embodiment, the Y-direction positioning protrusion 63 is vertically arranged outside the positioning vertical plate 61, and a right triangle fixing block is also arranged on the side of the Y-direction positioning protrusion 63. The two right-angled edges of the right triangle fixing block are respectively fixedly connected to the Y-direction positioning protrusion 63 and the positioning vertical plate 61, and the right triangle fixing block is used to ensure the stability of the Y-direction positioning protrusion 63. Specifically, the Y-direction positioning protrusion 63 is arranged on the fixed first positioning assembly 6. The Y-direction positioning protrusion 63 is arranged in pairs at both ends of the positioning vertical plate 61, and is used to respectively position a pair of horizontal plates 4.

[0041] In this embodiment, a trolley frame 14 is fixedly provided on the same side of the frame 1 and the movable second positioning assembly 7. The trolley frame 14 includes a cross bar 141. Casters 15 are provided at the bottom of the frame 1, and the casters 15 are used to move the operating platform.

[0042] In this embodiment, the roller is a universal caster with a brake.

[0043] In this embodiment, a storage cavity 140 is provided on the inner side of the hand push frame 14 corresponding to the cross bar 141 , and the storage cavity 140 is used to accommodate the second positioning assembly 7 when it rotates to the open state.

[0044] In this embodiment, the hand push frame 14 includes a pair of side rods 142 fixed on the frame 1, the pair of side rods 142 are arranged at intervals, the cross bar 141 is fixed to the ends of the pair of side rods 142, and the cross bar 141 and the pair of side rods 142 form a storage cavity 140 on the frame 1.

[0045] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanation here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A workpiece welding positioning operation platform, used for overlapping and positioning the sheets to be welded, characterized in that: The machine frame (1) comprises a mounting plate (11), the plate material comprises a bottom plate (2), a pair of vertical plates (3), and a horizontal plate (4), the vertical plates (3) are vertically overlapped on the bottom plate (2), and the horizontal plate (4) is overlapped on the pair of vertical plates (3); The frame (1) is provided with a first positioning assembly (6) and a second positioning assembly (7) in the Y and X directions respectively. The first positioning assembly (6) is arranged in pairs. The first positioning assembly (6) comprises: a pair of positioning vertical plates (61). The positioning vertical plates (61) are in contact with the vertical plates (3) in the Y direction. The positioning vertical plates (61) are provided with a first X-direction positioning protrusion (62) and a Y-direction positioning protrusion (63). The first X-direction positioning protrusion (62) is in contact with the vertical plates (3) in the X direction. The Y-direction positioning protrusion (63) is arranged at the upper end of the positioning vertical plates (61). The Y-direction positioning protrusion (63) is in contact with the edge of the horizontal plate (4) in the Y direction. The second positioning assembly (7) comprises: a pair of support plates (71), the pair of support plates (71) being respectively a first support plate (711) and a second support plate (712); a second X-direction positioning protrusion (70) is provided on the support plate (71); the second X-direction positioning protrusion (70) is in contact with an edge of the transverse plate (4) in the X-direction; the second X-direction positioning protrusion (70) comprises a first protrusion (701) and a second protrusion (702); the first protrusion (701) is extendedly arranged on the first support plate (711); a positioning frame (72) is fixed to one side of the second support plate (712); and the second protrusion (702) is arranged on the positioning frame (72).

2. A workpiece welding positioning operation platform according to claim 1, characterized in that: The mounting plate (11) is provided with a positioning protrusion (111), and the position of the positioning protrusion (111) corresponds to the positioning hole on the workpiece bottom plate (2).

3. A workpiece welding positioning operation platform according to claim 1, characterized in that: The frame (1) is hinged with a rotating seat (8), and the first positioning component (6) is fixed on the rotating seat (8); it also includes a first linear drive device (9), the fixed end of the first linear drive device (9) is hinged to the frame (1), and the movable end of the first linear drive device (9) is hinged to the rotating seat (8), and the first linear drive device (9) is used to drive the rotating seat (8) to rotate on the frame (1), so as to drive the corresponding first positioning component (6) to switch from a closed state to an open state; when the first positioning component (6) is in the open state, the welded workpiece can be moved out from the open side, and when the first positioning component (6) is in the closed state, it is used to position the corresponding sheet material.

4. A workpiece welding positioning operation platform according to claim 1, characterized in that: The invention also comprises a second linear drive device (10), wherein a fixed end of the second linear drive device (10) is hinged to the frame (1), and a movable end of the second linear drive device (10) is hinged to the second positioning assembly (7); the second positioning assembly (7) is rotatably connected to the frame (1), and the second linear drive device (10) is used to drive the second positioning assembly (7) to rotate on the frame (1), so as to drive the second positioning assembly (7) to switch from a closed state to an open state; when the second positioning assembly (7) is in the open state, a welded workpiece can be moved out from the open side; when the second positioning assembly (7) is in the closed state, it is used to position the corresponding sheet material.

5. A workpiece welding positioning operation platform according to claim 2, characterized in that: The invention also comprises a liftable rolling assembly (13), wherein the liftable rolling assembly (13) comprises a lifting frame (131) and a lifting drive device (133), wherein the lifting frame (131) is inserted into the mounting plate (11), a ball (132) is embedded in the liftable rolling assembly (13), and the lifting drive device (133) is fixed below the mounting plate (11), and a movable end of the lifting drive device (133) is connected to the bottom of the lifting frame (131).

6. A workpiece welding positioning operation platform according to claim 1, characterized in that: The positioning frame (72) comprises a horizontal fixing plate (721), the horizontal fixing plate (721) is arranged on the outside of the second support plate (712), the horizontal fixing plate (721) is fixedly connected to the second support plate (712), a positioning support plate (723) is provided on the side of the horizontal fixing plate (721) away from the second support plate (712), the positioning support plate (723) is fixedly connected to the horizontal fixing plate (721), a vertical fixing plate (722) is provided between the positioning support plate (723) and the second support plate (712), two sides of the vertical fixing plate (722) are respectively fixedly connected to the positioning support plate (723) and the second support plate (712), and the second protrusion (702) is extended and arranged on the positioning support plate (723).

7. A workpiece welding positioning operation platform according to claim 1, characterized in that: The Y-direction positioning protrusion (63) is fixed on the side of the positioning vertical plate (61) away from the vertical plate (3).

8. The workpiece welding positioning operation platform according to claim 1, characterized in that: A hand push frame (14) is fixedly provided on the same side of the frame (1) and the movably arranged second positioning assembly (7), the hand push frame (14) comprising a cross bar (141), and casters (15) are provided at the bottom of the frame (1), the casters (15) being used for moving the operating platform.

9. A workpiece welding positioning operation platform according to claim 8, characterized in that: A storage cavity (140) is provided on the inner side of the push frame (14) corresponding to the cross bar (141), and the storage cavity (140) is used to accommodate the second positioning assembly (7) when it is rotated to an open state.

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