Workpiece welding positioning device

Abstract

The utility model relates to the technical field of workpiece welding positioning, in particular to a workpiece welding positioning device. Comprising a base, a pair of positioning plates are arranged on the base at intervals, a workpiece to be welded comprises a bending frame and a connecting piece, the pair of positioning plates comprises a positioning fixed plate and a positioning movable plate, before welding, the bending frame is arranged between the positioning fixed plate and the positioning movable plate, a bottom plate is positioned on the base, a mounting frame is arranged on the side, away from the bending frame, of the positioning movable plate, and the mounting frame is mounted on the base; an adjustable abutting piece is arranged on the mounting frame and used for pushing the positioning movable plate in the interval direction of the pair of positioning plates, so that the pair of vertical plates are positioned on the inner sides of the pair of positioning plates. In the process that the positioning device positions the bent frame, the two ends of the connecting piece are installed in the corresponding installation holes respectively, after the bent frame is positioned, the connecting piece and the bent frame are welded together, and machining of needed workpieces is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece welding positioning, and particularly relates to a workpiece welding positioning device. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by means of heating, high temperature or high pressure. For workpieces with complex structures, usually each part is processed separately and then welded together. This processing method has low efficiency and the installation accuracy of each part cannot be guaranteed.

[0003] Currently, in the actual production process, the workpiece to be welded corresponding to this application is as Figure 1 shown, including: a bending frame 1 and a connecting piece 4. The bending frame 1 includes: a bottom plate 11 and a pair of vertical plates 12. The pair of vertical plates 12 are arranged at intervals on the bottom plate 11. The connecting piece 4 is arranged between the pair of vertical plates 12. The connecting piece 4 is used to connect the pair of vertical plates 12. A mounting hole 120 is provided on each of the pair of vertical plates 12. The two ends of the connecting piece 4 are respectively arranged in the corresponding mounting holes 120. The above-mentioned bending frame 1 is formed by overall stamping and then bending of a metal sheet. Since the connecting piece 4 cannot be installed during the stamping process, the connecting piece 4 needs to be positioned and welded on the bending frame 1 in subsequent processes. Due to the elasticity of metal products, it is difficult to shape the angle between the bottom plate 11 and the vertical plates 12 to a preset angle after the bending frame 1 is bent. This will cause the connecting piece 4 to be difficult to be positioned on the pair of vertical plates 12 during welding. Therefore, a welding positioning device is needed to facilitate the positioning and welding of the connecting piece 4. Summary of the Utility Model

[0004] To overcome the deficiencies of the above-mentioned prior art, the utility model provides a workpiece welding positioning device, which solves the technical problem that it is difficult to position a connecting piece on a pair of vertical plates during welding.

[0005] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0006] A workpiece welding positioning device is used for positioning a workpiece to be welded before welding, and includes: a base, on which a pair of positioning plates are arranged at intervals. The workpiece to be welded includes: a bending frame and a connecting piece. The bending frame includes: a bottom plate and a pair of vertical plates. The pair of vertical plates are arranged at intervals on the bottom plate. The connecting piece is arranged between the pair of vertical plates and is used to connect the pair of vertical plates. A mounting hole is provided on each of the pair of vertical plates, and both ends of the connecting piece are respectively arranged in the corresponding mounting holes. The pair of positioning plates include: a fixed positioning plate and a movable positioning plate. Before welding, the bending frame is arranged between the fixed positioning plate and the movable positioning plate, and the bottom plate is positioned on the base. An installation frame is provided on the side of the movable positioning plate away from the bending frame, and the installation frame is installed on the base. An adjustable abutting member is provided on the installation frame, and the adjustable abutting member is used to push the movable positioning plate in the direction of the interval between the pair of positioning plates, so that the pair of vertical plates are positioned inside the pair of positioning plates.

[0007] Based on the above structure, the principle of the workpiece welding positioning device is as follows: First, place the bent bending frame on the base and between the fixed positioning plate and the movable positioning plate. Then, adjust the adjustable abutting member to push the movable positioning plate. During the movement of the movable positioning plate towards the fixed positioning plate, place both ends of the connecting piece into the pair of mounting holes respectively to complete the installation of the connecting piece. When the fixed positioning plate and the movable positioning plate are respectively in contact with their corresponding positioning plates, the positioning of the bending frame is completed. Then, weld the connecting piece and the bending frame together.

[0008] Further, in the workpiece welding positioning device of the present application, a welding operation opening is provided on the pair of positioning plates, and the position of the welding operation opening corresponds to that of the mounting hole. As a preferred solution of the present application, for the welding operation opening in the workpiece welding positioning device of the present application, after the installation of the connecting piece is completed, the welding operator can, outside the positioning plate, through the welding operation opening, weld both ends of the connecting piece to the pair of vertical plates respectively. The external dimension of the welding operation opening is larger than that of the mounting hole.

[0009] Further, in the workpiece welding positioning device of the present application, the connecting piece includes: a first connecting piece, and the mounting hole includes: a first mounting hole. Both ends of the first connecting piece are respectively arranged in the corresponding first mounting holes. As a preferred solution of the present application, the pair of first mounting holes in the workpiece welding positioning device of the present application are used to install the first connecting piece and position the first connecting piece between the pair of vertical plates.

[0010] Furthermore, in a workpiece welding positioning device in the present application, the connecting member further includes a second connecting member, and the mounting hole further includes a second mounting hole. Convex portions are respectively provided at both ends of the second connecting member in an extended manner. The second mounting hole is used to accommodate the convex portions. A limiting surface is provided at the root of the convex portion, and the limiting surface is used for limiting between a pair of vertical plates. As a preferred solution of the present application, for the limiting surface in a workpiece welding positioning device in the present application, during the process of the positioning moving plate approaching the positioning fixed plate, the convex portions at both ends of the second connecting member are respectively placed in a pair of second mounting holes. After the positioning of the bending frame is completed, the limiting surface fits against the inner side surface of the corresponding vertical plate, and the positioning moving plate cannot move in the direction of approaching the positioning fixed plate, thus completing the limiting between a pair of vertical plates. The second connecting member is both a part to be installed and a limiting member between a pair of vertical plates.

[0011] Furthermore, in a workpiece welding positioning device in the present application, a set of adjusting holes are provided on the mounting frame, and the adjusting holes are used to enable the adjustable abutting member to abut against different positions of the positioning moving plate. As a preferred solution of the present application, the adjusting holes in a workpiece welding positioning device in the present application are used to set the adjustable abutting member, corresponding to different positions on the positioning moving plate, to achieve a slight adjustment of the positioning moving plate, so that the inner side surface of the positioning moving plate fits better with the vertical plate.

[0012] Furthermore, in a workpiece welding positioning device in the present application, it further includes: a positioning pressing block. A positioning post is provided on the base, and the positioning post is threadedly connected to the positioning pressing block. When positioning the bending frame, the positioning pressing block is placed above the bottom plate, and the positioning post axially connects the bottom plate and the positioning pressing block. As a preferred solution of the present application, the positioning pressing block in a workpiece welding positioning device in the present application, in cooperation with the positioning post, limits the bottom plate, preventing the bending frame from displacing during the positioning process of the bending frame; and, the positioning pressing block is also used for limiting between a pair of positioning plates, making the positioning moving plate unable to move in the direction of approaching the positioning fixed plate, preventing the positioning moving plate from excessively squeezing the bending frame and causing deformation of the bending frame.

[0013] Furthermore, in a workpiece welding positioning device in the present application, it further includes: a set of reinforcing frames. The reinforcing frame includes a pair of mutually perpendicular side edges, and the pair of side edges are respectively connected to the bottom of the base and the side surface of the positioning fixed plate away from the bending frame. As a preferred solution of the present application, the reinforcing frame in a workpiece welding positioning device in the present application is used to ensure the perpendicularity between the positioning fixed plate and the base, preventing deviation between the positioning fixed plate and the base and causing damage to the positioning device.

[0014] It can be seen from the above technical solutions that the present utility model has the following beneficial effects:

[0015] The present utility model provides a workpiece welding positioning device. During the positioning of the bending frame by the positioning device, both ends of the connecting piece are respectively installed in the corresponding installation holes. After the positioning of the bending frame is completed, the connecting piece is welded to the bending frame to complete the processing of the required workpiece. Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of a workpiece corresponding to a workpiece welding positioning device in an embodiment of the present application;

[0017] Figure 2 It is a three-dimensional structure diagram of a workpiece after being positioned by a workpiece welding positioning device in an embodiment of the present application;

[0018] Figure 3 It is a three-dimensional structure diagram of a second connecting piece in an embodiment of the present application.

[0019] In the figure: 1 - bending frame; 11 - bottom plate; 12 - vertical plate; 120 - installation hole; 1201 - first installation hole; 1202 - second installation hole; 2 - base; 21 - positioning post; 3 - positioning plate; 30 - welding operation opening; 31 - fixed positioning plate; 32 - movable positioning plate; 4 - connecting piece; 41 - first connecting piece; 42 - second connecting piece; 421 - convex part; 422 - limiting surface; 5 - installation frame; 50 - adjustment hole; 6 - adjustable abutting piece; 7 - positioning pressing block; 8 - reinforcing frame. Detailed Embodiment Embodiment

[0020] As Figure 2 shown, a workpiece welding positioning device for pre - welding positioning of a workpiece to be welded includes: a base 2, and a pair of positioning plates 3 are spaced on the base 2. The workpiece to be welded includes: a bending frame 1 and a connecting piece 4. The bending frame 1 includes: a bottom plate 11 and a pair of vertical plates 12. The pair of vertical plates 12 are spaced on the bottom plate 11. The connecting piece 4 is arranged between the pair of vertical plates 12. The connecting piece 4 is used to connect the pair of vertical plates 12. Installation holes 120 are provided on the pair of vertical plates 12, and both ends of the connecting piece 4 are respectively arranged in the corresponding installation holes 120. The pair of positioning plates 3 include: a fixed positioning plate 31 and a movable positioning plate 32. Before welding, the bending frame 1 is arranged between the fixed positioning plate 31 and the movable positioning plate 32, the bottom plate 11 is positioned on the base 2, an installation frame 5 is provided on the side of the movable positioning plate 32 away from the bending frame 1, the installation frame 5 is installed on the base 2, and an adjustable abutting piece 6 is provided on the installation frame 5. The adjustable abutting piece 6 is used to push the movable positioning plate 32 in the direction of the interval between the pair of positioning plates 3, so that the pair of vertical plates 12 are positioned inside the pair of positioning plates 3.

[0021] Based on the above structure, the principle of the workpiece welding positioning device is as follows: Place the bent bending frame 1 on the base 2 and between the positioning fixed plate 31 and the positioning movable plate 32. Then, adjust the adjustable abutting member 6 to push the positioning movable plate 32. During the movement of the positioning movable plate 32 towards the positioning fixed plate 31, place the two ends of the connecting member 4 into a pair of mounting holes 120 respectively to complete the installation of the connecting member 4. When the positioning fixed plate 31 and the positioning movable plate 32 are respectively in contact with their corresponding positioning plates 3, the positioning of the bending frame 1 is completed. After that, weld the connecting member 4 and the bending frame 1 together. The adjustable abutting member 6 is a screw, and the number of adjustable abutting members 6 is 4.

[0022] In this embodiment, a pair of welding operation openings 30 are provided on the positioning plates 3, and the positions of the welding operation openings 30 correspond to the mounting holes 120. After completing the installation of the connecting member 4 through the welding operation openings 30, the welding operator can, outside the positioning plates 3, weld the two ends of the connecting member 4 to a pair of vertical plates 12 respectively through the welding operation openings 30. The external dimension of the welding operation opening 30 is larger than the external dimension of the mounting hole 120.

[0023] In this embodiment, the connecting member 4 includes: a first connecting member 41, and the mounting hole 120 includes: a first mounting hole 1201. The two ends of the first connecting member 41 are respectively arranged in the corresponding first mounting holes 1201. The first mounting holes 1201 are used for installing the first connecting member 41 and positioning the first connecting member 41 between a pair of vertical plates 12. The cross-section of the first connecting member 41 is circular, and the two end parts on both sides of the first connecting member 41 are flush with the outer surfaces of the corresponding vertical plates 12.

[0024] As Figure 3 shown, in this embodiment, the connecting member 4 further includes a second connecting member 42, and the mounting hole 120 further includes a second mounting hole 1202. The two end parts on both sides of the second connecting member 42 are respectively extended with convex parts 421. The second mounting hole 1202 is used for accommodating the convex parts 421. A limiting surface 422 is provided at the root of the convex part 421, and the limiting surface 422 is used for limiting between a pair of vertical plates 12. During the process of the positioning movable plate 32 moving towards the positioning fixed plate 31, place the convex parts 421 at the two ends of the second connecting member 42 into a pair of second mounting holes 1202 respectively. After completing the positioning of the bending frame 1, the limiting surface 422 is in contact with the inner side surface of the corresponding vertical plate 12, and the positioning movable plate 32 cannot move towards the positioning fixed plate 31, thus completing the limiting between a pair of vertical plates 12. The second connecting member 42 is both a part to be installed and a limiting member between a pair of vertical plates 12. The two end parts on both sides of the second connecting member 42 are respectively extended with two convex parts 421. Correspondingly, four second mounting holes 1202 adapted to the convex parts 421 are provided.

[0025] In this embodiment, the mounting frame 5 is provided with a group of adjustment holes 50, and the adjustment holes 50 are used to allow the adjustable abutment member 6 to abut against different positions of the positioning movable plate 32. The adjustment holes 50 are used to set the adjustable abutment member 6, corresponding to different positions on the positioning movable plate 32, to achieve slight adjustment of the positioning movable plate 32, so that the inner side surface of the positioning movable plate 32 is better fitted with the vertical plate 12. The adjustment holes 50 are evenly arranged along the extension direction of the mounting frame 5.

[0026] In this embodiment, it also includes: a positioning block 7, a positioning column 21 is provided on the base 2, and the positioning column 21 is threadedly connected to the positioning block 7. When the bending frame 1 is positioned, the positioning block 7 is placed above the bottom plate 11, and the positioning column 21 axially connects the bottom plate 11 and the positioning block 7. The positioning block 7 works together with the positioning column 21 to limit the bottom plate 11 to prevent the bending frame 1 from being displaced during the positioning process of the bending frame 1; and the positioning block 7 is also used to limit the position between a pair of positioning plates 3, so that the positioning movable plate 32 cannot move in the direction close to the positioning fixed plate 31, preventing the positioning movable plate 32 from excessively squeezing the bending frame 1 and causing deformation of the bending frame 1. The positioning column 21 is detachably mounted on the base 2 with screws.

[0027] In this embodiment, it also includes: a group of reinforcing frames 8, the reinforcing frames 8 include a pair of mutually perpendicular sides, and the pair of sides are respectively connected to the bottom of the base 2 and the side of the positioning plate 31 away from the bending frame 1. The reinforcing frames 8 are used to ensure the verticality between the positioning plate 31 and the base 2, and prevent the positioning plate 31 from offsetting from the base 2, causing damage to the positioning device. The reinforcing frames 8 are L-shaped, and a group of reinforcing frames 8 includes three reinforcing frames 8.

[0028] 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 device, used for positioning a workpiece to be welded before welding, characterized in that: include: A base (2), wherein a pair of positioning plates (3) are arranged on the base (2) at intervals, the workpiece to be welded comprises: a bending frame (1), a connecting member (4), the bending frame (1) comprises: a bottom plate (11), a pair of vertical plates (12), the pair of vertical plates (12) are arranged on the bottom plate (11) at intervals, the connecting member (4) is arranged between the pair of vertical plates (12), the connecting member (4) is used to connect the pair of vertical plates (12), the pair of vertical plates (12) are provided with mounting holes (120), and the two ends of the connecting member (4) are respectively arranged in the corresponding mounting holes (120); The pair of positioning plates (3) comprises: a positioning fixed plate (31) and a positioning movable plate (32). Before welding, the bending frame (1) is arranged between the positioning fixed plate (31) and the positioning movable plate (32), the bottom plate (11) is positioned on the base (2), a mounting frame (5) is provided on the side of the positioning movable plate (32) away from the bending frame (1), the mounting frame (5) is mounted on the base (2), and an adjustable abutment member (6) is provided on the mounting frame (5), the adjustable abutment member (6) is used to push the positioning movable plate (32) in the spacing direction of the pair of positioning plates (3), so that the pair of vertical plates (12) are positioned on the inner side of the pair of positioning plates (3).

2. A workpiece welding positioning device according to claim 1, characterized in that: A pair of positioning plates (3) are provided with welding operation openings (30), and positions of the welding operation openings (30) correspond to the mounting holes (120).

3. A workpiece welding positioning device according to claim 1, characterized in that: The connecting member (4) comprises a first connecting member (41), and the mounting hole (120) comprises a first mounting hole (1201), and two ends of the first connecting member (41) are respectively arranged in corresponding first mounting holes (1201).

4. A workpiece welding positioning device according to claim 1, characterized in that: The connecting member (4) further comprises a second connecting member (42), and the mounting hole (120) further comprises a second mounting hole (1202). The second connecting member (42) is provided with protrusions (421) extending from both side ends thereof. The second mounting hole (1202) is used to accommodate the protrusions (421). A limiting surface (422) is provided at the root of the protrusion (421). The limiting surface (422) is used to limit the position between a pair of vertical plates (12).

5. A workpiece welding positioning device according to claim 1, characterized in that: The mounting frame (5) is provided with a group of adjustment holes (50), and the adjustment holes (50) are used to allow the adjustable abutment member (6) to abut against different positions of the positioning movable plate (32).

6. A workpiece welding positioning device according to claim 1, characterized in that: Also includes: A positioning pressing block (7), wherein a positioning column (21) is provided on the base (2), and the positioning column (21) is threadedly connected to the positioning pressing block (7); when the bending frame (1) is positioned, the positioning pressing block (7) is placed above the bottom plate (11), and the positioning column (21) axially connects the bottom plate (11) and the positioning pressing block (7).

7. A workpiece welding positioning device according to claim 1, characterized in that: Also includes: A group of reinforcing frames (8), the reinforcing frames (8) comprising a pair of mutually perpendicular side edges, the pair of side edges being respectively connected to the bottom of the base (2) and the side of the positioning plate (31) away from the bending frame (1).

Images