A positioning tool for batch welding

Abstract

The present application relates to the technical field of machining auxiliary devices, specifically a positioning fixture for batch welding, which includes a mounting plate for connecting to a turning machine, a fixed shaft fixedly connected to one side of the mounting plate, two cantilevers rotatably connected to the fixed shaft, the main axes of the two cantilevers are parallel, and the distance between the two cantilevers is adjustable; a positioning block is installed on the cantilever, and the ends of the two positioning blocks away from the cantilever are respectively installed with a first locking member and a second locking member, and when the first locking member and the second locking member are locked, the positional relationship between the two cantilevers is fixed. The embodiment of the present application is arranged by the coordination of the cantilever, the positioning block and the clamping mechanism, so that when the operator closes the two cantilevers, several groups of workpieces are aligned at the same time, and the operator does not need to adjust them one by one, which reduces the workload and working time of the operator in dealing with batch welding and improves work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of machining auxiliary devices, and in particular to a positioning tool for batch welding. Background Art

[0002] When welding a right-angle bend, the positions of the two workpieces to be welded need to be aligned to ensure that the shape and angle of the right-angle bend after welding meet the requirements. In the prior art, the alignment of the right-angle bend is generally manual alignment of a single right-angle bend, which is inefficient and not suitable for batch welding. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present application provides a positioning tool for batch welding. The embodiment of the present application uses the coordinated arrangement of a cantilever, a positioning block and a clamping mechanism. When the operator closes the two cantilevers, several groups of workpieces are aligned at the same time, and the operator does not need to adjust them one by one, thereby reducing the operator's workload and working time when dealing with batch welding and improving work efficiency.

[0004] The above application objectives of this application are achieved through the following technical solutions:

[0005] A positioning tool for batch welding, comprising a mounting plate connected to a turning machine, a fixed shaft fixedly connected to one side of the mounting plate, two cantilevers rotatably connected to the fixed shaft, the main axes of the two cantilevers are parallel, and the distance between the two cantilevers is adjustable;

[0006] A positioning block is installed on the cantilever, and a first locking piece and a second locking piece are installed at one end of the two positioning blocks away from the cantilever respectively. When the first locking piece and the second locking piece complete locking, the positional relationship between the two cantilevers is fixed;

[0007] The cantilever is also equipped with several clamping mechanisms for clamping the workpiece. The several clamping mechanisms are linearly distributed on the cantilever. When the clamping mechanism clamps the workpiece, the center axis of the workpiece is collinear with the virtual center axis on the inner side of the clamping mechanism, and the virtual center axis on the inner side of the clamping mechanism is parallel to the center axis of the positioning block on the cantilever where it is located.

[0008] Optionally, the clamping mechanism includes a base installed on the cantilever, the base is fixedly connected to a fixed block and movably connected to a movable block, and the distance between the movable block and the fixed block is adjustable.

[0009] Optionally, a slide groove is provided on the base, and a slider is fixedly connected to the movable block. In the assembled state, the slider on the movable block extends into the slide groove, and a tension spring is provided between the slider and the inner wall of the slide groove to make the movable block move toward the fixed block.

[0010] Optionally, both the first locking member and the second locking member are magnetic bodies, and the side of the first locking member and the second locking member away from the positioning block where they are located is a contact surface. When the contact surfaces of the first locking member and the second locking member are attracted and pressed against each other, the first locking member and the second locking member complete the locking.

[0011] Optionally, a sleeve is provided at one end of the cantilever, the sleeve is rotatably connected to the outside of the fixed shaft, and a friction ring is fixedly connected to the inside of the sleeve.

[0012] Optionally, positioning grooves are provided on the outer sides, and positioning pins are hinged on the mounting plate. When the positioning pins move into the positioning grooves on the outer sides of the two sleeves, the angles of the two cantilevers and the mounting plate are fixed.

[0013] In summary, this application has the following beneficial technical effects:

[0014] In the embodiment of the present application, through the coordinated arrangement of the cantilever, the positioning block and the clamping mechanism, when the operator closes the two cantilevers, several groups of workpieces are aligned at the same time, and the operator does not need to adjust them one by one, thereby reducing the operator's workload and working time when dealing with batch welding and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the opening of two cantilevers in one embodiment of the present application;

[0016] Figure 2 It is a schematic diagram of closing two cantilevers in one embodiment of the present application;

[0017] Figure 3 It is a schematic diagram of the assembly of a workpiece according to an embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of two groups of workpieces in position in one embodiment of the present application;

[0019] Figure 5 is a schematic diagram of a clamping mechanism according to an embodiment of the present application;

[0020] Figure 6 is a schematic diagram of a positioning groove in one embodiment of the present application;

[0021] Figure 7 This is a schematic diagram of two sleeve locking according to an embodiment of the present application.

[0022] Reference numerals: 10, mounting plate; 11, fixing shaft; 12, positioning pin;

[0023] 20. cantilever; 21. sleeve; 22. friction ring; 23. positioning groove;

[0024] 30. Positioning block; 31. First locking piece; 32. Second locking piece;

[0025] 40. Clamping mechanism; 41. Base; 42. Fixed block; 43. Movable block; 44. Slide groove; 45. Slider; 46. Tension spring. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings.

[0027] The embodiment of the present application provides a positioning tool for batch welding, which is used for batch fixing of workpieces during batch right-angle elbow welding and batch positioning of workpieces during merging. Figure 1-Figure 4 , including a mounting plate 10 for connecting to the turning machine, and two cantilevers 20;

[0028] A fixed shaft 11 is fixedly connected to one side of the mounting plate 10, and a side of the mounting plate 10 away from the fixed shaft 11 is used to be connected to the turning machine. The cantilever 20 includes a cantilever 20 main shaft and a cantilever 20 connecting handle. The cantilever 20 main shaft and the cantilever 20 connecting handle are fixedly connected. The cantilever 20 connecting handles of the two cantilevers 20 are rotatably connected to the fixed shaft 11. The straight-line distance between the two cantilever 20 main shafts is adjustable, and the angle between the cantilever 20 connecting handles of the two cantilevers 20 is adjustable. When the angle between the cantilever 20 connecting handles of the two cantilevers 20 is adjusted, the cantilever 20 main shaft axes of the two cantilevers 20 always remain parallel, and the projections of the cantilever 20 main shaft axes of the two cantilevers 20 on a certain plane do not intersect.

[0029] A positioning block 30 is installed on the main axis of the cantilever 20, and a first locking piece 31 and a second locking piece 32 are installed on the ends of the two positioning blocks 30 away from the cantilever 20, respectively. When the first locking piece 31 and the second locking piece 32 are locked, the positional relationship between the two cantilevers 20 is fixed, that is, the distance between the main axes of the two cantilevers 20 is fixed, and the angle between the cantilever 20 connecting handles of the two cantilevers 20 is fixed;

[0030] A plurality of clamping mechanisms 40 for clamping workpieces are also installed on the main axis of the cantilever 20 of the cantilever 20. The plurality of clamping mechanisms 40 are linearly distributed on the main axis of the cantilever 20. The middle part of the clamping mechanism 40 has a space for clamping the workpiece. When the clamping mechanism 40 clamps the workpiece, the center axis of the workpiece is collinear with the virtual center axis on the inner side of the clamping mechanism 40. The virtual center axis on the inner side of the clamping mechanism 40 is also the center axis of the space in the middle of the clamping mechanism 40 for clamping the workpiece. The virtual center axis on the inner side of the clamping mechanism 40 is parallel to the center axis of the positioning block 30 on the cantilever 20 where it is located.

[0031] The following is a further introduction based on specific usage scenarios.

[0032] When in use, the operator first installs the side of the mounting plate 10 away from the fixed axis 11 on the turning machine, and then the operator installs the workpieces to be welded on each clamping mechanism 40 of the two cantilevers 20 respectively. Each clamping mechanism 40 is installed with a component unit of a right-angle bend pipe. Several clamping mechanisms 40 on the main axis of one cantilever 20 correspond to the clamping mechanisms 40 on the main axis of another cantilever 20 respectively. If the clamping mechanism 40 on the main axis of one cantilever 20 and the corresponding clamping mechanism 40 on the main axis of another cantilever 20 are called a group of clamping mechanisms 40, after the operator completes the fixation of all the workpieces to be installed, several groups of neatly linearly arranged right-angle bend pipe component units are formed on the two cantilevers 20. It should be noted here that the length of the workpiece inserted into the clamping mechanism 40 can be changed according to the size and shape requirements of the finished right-angle bend pipe. When fixing the workpiece, the protruding distance of the workpiece on the clamping mechanism 40 should be determined.

[0033] After the operator completes the fixation of the workpiece, the operator reduces the angle between the cantilever 20 connecting handles of the two cantilevers 20, so that the two cantilevers 20 tend to close together until the first locking piece 31 and the second locking piece 32 are locked. When the first locking piece 31 and the second locking piece 32 are in the locked state, the axes of the two workpieces in the same group of workpieces are perpendicular to each other. Since the extension distance of the workpiece on the clamping mechanism 40 has been determined, the inclined surfaces of the ends of the two workpieces in the same group of workpieces that are close to each other are aligned, and the workpieces of other groups will also be aligned, thereby realizing the positioning of the preparatory welding position of the unit workpiece that constitutes the right-angle bend pipe. The welding machine can weld several groups of workpieces separately or simultaneously.

[0034] In the above operation process, it can be found that when the operator closes the two cantilevers 20, several groups of workpieces are aligned at the same time, and the operator does not need to adjust them one by one, which reduces the operator's workload and working time when dealing with batch welding and improves work efficiency.

[0035] The clamping mechanism 40 is used to clamp the workpiece to be welded. In a possible implementation of the embodiment of the present application, refer to Figure 5The clamping mechanism 40 may include a base 41 installed on the cantilever 20, the base 41 is fixedly connected with a fixed block 42 and movably connected with a movable block 43, the distance between the movable block 43 and the fixed block 42 is adjustable, and the movable block 43 and the fixed block 42 are close to each other on one side to form a semi-open clamping space, and the clamping space can be used to place the workpiece. When the workpiece is placed in the clamping mechanism 40, the two sides and the bottom of the workpiece are respectively in contact with the movable block 43, the fixed block 42 and the base 41. Furthermore, a slide groove 44 is provided on the base 41, and a slider 45 is fixedly connected to the movable block 43. In the assembled state, the slider 45 on the movable block 43 extends into the slide groove 44, and a tension spring 46 is arranged between the slider 45 and the inner wall of the slide groove 44, so that the movable block 43 moves toward the fixed block 42. Under the action of the tension of the tension spring 46, the movable block 43 cooperates with the fixed block 42 to clamp the workpiece, which is easy to operate and improves the overall work efficiency of the workpiece positioning work.

[0036] The mutual cooperation and locking of the first locking piece 31 and the second locking piece 32 can lock the positional relationship between the two cantilevers 20. In a possible implementation method of the embodiment of the present application, the first locking piece 31 and the second locking piece 32 are both magnetic bodies, and the side of the first locking piece 31 and the second locking piece 32 away from the positioning block 30 where they are located is a contact surface. The first locking piece 31 and the second locking piece 32 have a tendency to attract each other. When the contact surfaces of the first locking piece 31 and the second locking piece 32 are attracted and pressed against each other, the first locking piece 31 and the second locking piece 32 complete the locking, which is easy to operate and improves the overall work efficiency of the workpiece positioning work.

[0037] The connecting handle of the cantilever 20 is rotatably connected to the fixed shaft 11, 6 and Figure 7 In a possible implementation of the embodiment of the present application, the connecting handle of the cantilever 20 is fixedly connected to a sleeve 21 at one end away from the main shaft of the cantilever 20, and the sleeve 21 is rotatably connected to the outer side of the fixed shaft 11. A friction ring 22 is fixedly connected to the inner side of the sleeve 21. The sleeve 21 is interference fit with the fixed shaft 11 through the friction ring 22, so that the cantilever 20 can be adjusted and fixed at any time. Furthermore, positioning grooves 23 are opened on the outer side, and a positioning pin 12 is hinged on the mounting plate 10. When the positioning pin 12 moves to the positioning grooves 23 on the outer sides of the two sleeves 21, the angles of the two cantilevers 20 and the mounting plate 10 are fixed, which is easy to operate and improves the overall work efficiency of the workpiece positioning work.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A positioning tool for batch welding, characterized in that: It comprises a mounting plate (10) for connecting to the turning machine, a fixed shaft (11) being fixedly connected to one side of the mounting plate (10), two cantilevers (20) being rotatably connected to the fixed shaft (11), the main axes of the two cantilevers (20) being parallel, and the distance between the two cantilevers (20) being adjustable; A positioning block (30) is mounted on the cantilever (20); a first locking piece (31) and a second locking piece (32) are mounted respectively on one end of the two positioning blocks (30) away from the cantilever (20); when the first locking piece (31) and the second locking piece (32) are locked, the positional relationship between the two cantilevers (20) is fixed; A plurality of clamping mechanisms (40) for clamping a workpiece are also mounted on the cantilever (20). The plurality of clamping mechanisms (40) are linearly distributed on the cantilever (20). When the clamping mechanisms (40) clamp a workpiece, the center axis of the workpiece is collinear with a virtual center axis on the inner side of the clamping mechanisms (40). The virtual center axis on the inner side of the clamping mechanisms (40) is parallel to the center axis of the positioning block (30) on the cantilever (20) where the clamping mechanisms (40) are located.

2. A positioning tool for batch welding according to claim 1, characterized in that: The clamping mechanism (40) comprises a base (41) mounted on the cantilever (20), a fixed block (42) being fixedly connected to the base (41) and a movable block (43) being movably connected to the base (41), and a distance between the movable block (43) and the fixed block (42) being adjustable.

3. A positioning tool for batch welding according to claim 2, characterized in that: A slide groove (44) is provided on the base (41), and a slider (45) is fixedly connected to the movable block (43). In an assembled state, the slider (45) on the movable block (43) extends into the slide groove (44), and a tension spring (46) is provided between the slider (45) and the inner wall of the slide groove (44), so that the movable block (43) moves toward the fixed block (42).

4. A positioning tool for batch welding according to claim 1, characterized in that: The first locking piece (31) and the second locking piece (32) are both magnetic bodies; the sides of the first locking piece (31) and the second locking piece (32) away from the positioning block (30) on which they are located are contact surfaces; when the contact surfaces of the first locking piece (31) and the second locking piece (32) are attracted to each other and tightly attached, the first locking piece (31) and the second locking piece (32) are locked.

5. A positioning tool for batch welding according to claim 1, characterized in that: A sleeve (21) is provided at one end of the cantilever (20). The sleeve (21) is rotatably connected to the outside of the fixed shaft (11), and a friction ring (22) is fixedly connected to the inside of the sleeve (21).

6. A positioning tool for batch welding according to claim 5, characterized in that: Positioning grooves (23) are provided on the outer sides, and a positioning pin (12) is hinged on the mounting plate (10). When the positioning pin (12) moves into the positioning grooves (23) on the outer sides of the two sleeves (21), the angles of the two cantilevers (20) and the mounting plate (10) are fixed.

Images