Weldment clamp device for friction stir welding

Abstract

The utility model relates to the technical field of welding fixture devices, and discloses a weldment fixture device for friction stir welding, which comprises a welding table, the top of the welding table is provided with a moving groove, the inner cavity of the welding table is movably sleeved with a support rod, the outer wall of the support rod is fixedly provided with a fixing plate, and the fixing plate is provided with a clamping groove. A base is fixedly assembled at the bottom of the supporting rod, and the outer wall of the supporting rod is movably sleeved with a fixing spring. According to the weldment clamp device for friction stir welding, through a supporting rod arranged at the top of the welding table and a moving groove formed in the top of the welding table, when the fixing position of the supporting rod needs to be adjusted, a clamping plate is pulled downwards, a threaded cylinder is rotated, and a threaded rod is driven to move under the action of the threaded cylinder; and therefore, the supporting rods on the two sides move inwards, the positions of the supporting rods can be adjusted, and the bottom of the clamping base can better correspond to the position of a welding plate.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixture devices, in particular to a weldment fixture device used for friction stir welding. Background Art

[0002] Friction stir welding is a method that uses the heat generated by the mutual movement of the end faces of the workpieces to make the ends reach a thermoplastic state, and then quickly forges them to complete the welding. Friction stir welding can easily connect the same or dissimilar materials. The welding workpieces must be rigidly fixed, so a welding clamping fixture is required.

[0003] When using a traditional welding clamping and fixing device, the screw is often rotated, and under the drive of the screw, the clamping plate is used to fix the welding. When in use, the screw needs to be rotated multiple times to make the clamping plate fit on the top of the welding plate and fix the welding plate. However, the traditional fixing structure is often directly fixed on the top of the welding table and cannot be adjusted. When welding and fixing some welding plates of different widths, the clamping plate will not fit well on the top of the welding plate, resulting in unstable fixation. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a weldment clamp device for friction stir welding, which has the advantages of convenient fixation and adjustable fixing position, and solves the problems raised by the above background technology.

[0005] The utility model provides the following technical solutions: a weldment clamp device for friction stir welding, comprising a welding table, a movable groove is provided on the top of the welding table, a support rod is movably sleeved on the inner cavity of the welding table, a fixed plate is fixedly assembled on the outer wall of the support rod, a base is fixedly assembled on the bottom of the support rod, a fixing spring is movably sleeved on the outer wall of the support rod, a clamping plate is movably sleeved on the outer wall of the support rod, a threaded rod is fixedly assembled on the outer wall of the base, a threaded cylinder is threadedly connected to the outer wall of the threaded rod, a support plate is movably sleeved on the outer wall of the support rod, and a lock is movably sleeved on the inner cavity of the support plate. The fixed rod, the outer wall of the locking rod is fixedly assembled with a limiting ring, the outer wall of the locking rod is movably sleeved with a locking spring, the outer wall of the locking rod is fixedly assembled with a pull rod, the top of the support plate is fixedly assembled with an auxiliary rod, the outer wall of the auxiliary rod is movably sleeved with a movable seat, the outer wall of the movable seat is rotatably connected to the auxiliary plate, the outer wall of the auxiliary rod is threadedly connected with an adjusting nut, the outer wall of the auxiliary rod is movably sleeved with a driving spring, the outer wall of the auxiliary plate is rotatably connected to a clamping seat, a welding plate is installed on the top of the welding table, the outer wall of the support plate is provided with a movable groove, and the outer wall of the support rod is provided with a locking hole.

[0006] As a preferred technical solution of the present invention: the top and bottom of the fixing spring are in contact with the top of the base and the bottom of the clamping plate respectively, and the fixing spring is made of high carbon steel.

[0007] As an optimal technical solution of the present invention: both ends of the outer wall of the locking spring are in contact with the outer wall of the limiting ring and the inner wall of the support plate respectively, and the outer wall diameter of the locking rod is equal to the inner wall diameter of the movable groove.

[0008] As a preferred technical solution of the present invention: one end of the auxiliary plate away from the movable seat is rotatably connected to the outer wall of the clamping seat, and the width of the outer wall of the auxiliary plate is equal to the distance between the inner wall of the movable groove.

[0009] As an optimal technical solution of the present invention: both ends of the outer wall of the driving spring are in contact with the outer walls of the movable seat and the adjusting nut respectively, and the outer wall diameter of the fixing plate is larger than the distance between the inner walls of the movable groove.

[0010] As a preferred technical solution of the present invention: there are four auxiliary plates, and two auxiliary plates form a group, and the two groups of auxiliary plates are respectively installed on the outer walls of the movable base on both sides.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The weldment clamp device for friction stir welding has a support rod set on the top of the welding table and a movable groove opened on the top of the welding table. When the fixed position of the support rod needs to be adjusted, the clamping plate is pulled downward and the threaded cylinder is rotated. The threaded rod is driven to move under the action of the threaded cylinder, so that the support rods on both sides move inward, and the position of the support rod can be adjusted so that the bottom of the clamping seat better corresponds to the position of the welding plate.

[0013] 2. The weldment clamp device for friction stir welding can adjust the position of the support plate by pulling the pull rod and the locking rod through the locking hole opened on the outer wall of the support rod. After adjusting the height of the support plate, the position of the adjusting nut is adjusted so that the adjusting nut can compress the driving spring, and then the auxiliary plate can apply pressure to the clamping seat, thereby ensuring that the clamping seat is stably installed on the top of the welding plate, fixing the welding plate, and applying different downward pressures according to the thickness of the welding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the structure of the welding table of the utility model;

[0017] Figure 4 This is a schematic diagram of the support plate structure of the utility model;

[0018] Figure 5 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Welding table; 2. Moving groove; 3. Support rod; 4. Fixed plate; 5. Base; 6. Fixed spring; 7. Clamping plate; 8. Threaded rod; 9. Threaded cylinder; 10. Support plate; 11. Locking rod; 12. Limiting ring; 13. Locking spring; 14. Pull rod; 15. Auxiliary rod; 16. Moving seat; 17. Driving spring; 18. Adjusting nut; 19. Auxiliary plate; 20. Clamping seat; 21. Movable groove; 22. Welding plate; 23. Locking hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 5 A welding fixture device for friction stir welding includes a welding table 1, a movable groove 2 is opened on the top of the welding table 1, a support rod 3 is movably sleeved in the inner cavity of the welding table 1, a fixing plate 4 is fixedly assembled on the outer wall of the support rod 3, a base 5 is fixedly assembled on the bottom of the support rod 3, a fixing spring 6 is movably sleeved on the outer wall of the support rod 3, a clamping plate 7 is movably sleeved on the outer wall of the support rod 3, a threaded rod 8 is fixedly assembled on the outer wall of the base 5, a threaded cylinder 9 is threadedly connected to the outer wall of the threaded rod 8, a support plate 10 is movably sleeved on the outer wall of the support rod 3, a locking rod 11 is movably sleeved on the inner cavity of the support plate 10, and the outer wall of the locking rod 11 is fixedly assembled There is a limiting ring 12, the outer wall of the locking rod 11 is movably sleeved with a locking spring 13, the outer wall of the locking rod 11 is fixedly equipped with a pull rod 14, the top of the support plate 10 is fixedly equipped with an auxiliary rod 15, the outer wall of the auxiliary rod 15 is movably sleeved with a movable seat 16, the outer wall of the movable seat 16 is rotatably connected to the auxiliary plate 19, the outer wall of the auxiliary rod 15 is threadedly connected with an adjusting nut 18, the outer wall of the auxiliary rod 15 is movably sleeved with a driving spring 17, the outer wall of the auxiliary plate 19 is rotatably connected to the clamping seat 20, a welding plate 22 is installed on the top of the welding table 1, the outer wall of the support plate 10 is provided with a movable groove 21, and the outer wall of the support rod 3 is provided with a locking hole 23.

[0022] In the above structure, by providing a support rod 3 in the inner cavity of the welding table 1 and a base 5 on the bottom of the support rod 3, the fixing spring 6 can be restricted under the action of the base 5, so that the top and bottom of the fixing spring 6 respectively contact the top of the base 5 and the bottom of the clamping plate 7. At this time, the support rod 3 can be fixed under the action of the fixing spring 6, ensuring that the support rod 3 can be stably installed in the inner cavity of the welding table 1.

[0023] In a preferred embodiment, the top and bottom of the fixing spring 6 are in contact with the top of the base 5 and the bottom of the clamping plate 7 respectively, and the fixing spring 6 is made of high carbon steel.

[0024] In the above structure, a fixing spring 6 is provided on the outer wall of the support rod 3. When the fixing spring 6 is installed on the outer wall of the support rod 3, it is in a compressed state, so that the support rod 3 is fixed under the action of the fixing spring 6. When the position of the support rod 3 needs to be adjusted, the clamping plate 7 is pulled downward so that the clamping plate 7 compresses the fixing spring 6. At this time, the clamping plate 7 can be detached from the bottom of the welding table 1, and then the threaded cylinder 9 is rotated to pull the threaded rods 8 on both sides under the action of the threaded cylinder 9, thereby realizing the position adjustment of the support rod 3.

[0025] In a preferred embodiment, both ends of the outer wall of the locking spring 13 contact the outer wall of the limiting ring 12 and the inner wall of the support plate 10 respectively, and the outer wall diameter of the locking rod 11 is equal to the inner wall diameter of the movable groove 21 .

[0026] In the above structure, a locking spring 13 is arranged on the outer wall of the locking rod 11. When the locking spring 13 is installed on the outer wall of the locking rod 11, it is in a compressed state. At this time, the locking rod 11 can be driven under the action of the locking spring 13, so that the outer wall of the locking rod 11 is inserted into the inner cavity of the movable groove 21, thereby fixing the support plate 10.

[0027] In a preferred embodiment, one end of the auxiliary plate 19 away from the movable seat 16 is rotatably connected to the outer wall of the clamping seat 20 , and the width of the outer wall of the auxiliary plate 19 is equal to the distance between the inner wall of the movable groove 21 .

[0028] In the above structure, by means of the auxiliary plate 19 provided on the outer wall of the movable seat 16 and the driving spring 17 provided on the outer wall of the auxiliary rod 15, the movable seats 16 on both sides can be driven under the action of the driving spring 17, so that the movable seat 16 pushes the auxiliary plate 19 on its outer wall to move, so that under the action of the auxiliary plates 19 on both sides, the outer wall of the clamping seat 20 is attached to the top of the welding plate 22, thereby fixing the welding plate 22.

[0029] In a preferred embodiment, both ends of the outer wall of the driving spring 17 are in contact with the outer walls of the movable seat 16 and the adjusting nut 18 respectively, and the outer wall diameter of the fixing plate 4 is larger than the distance between the inner walls of the movable groove 2 .

[0030] In the above structure, the driving spring 17 is arranged on the outer wall of the auxiliary rod 15, and under the action of the driving spring 17, the movable seats 16 on both sides will move inward, thereby changing the angle between the outer walls of the auxiliary plates 19 on both sides, and then the auxiliary plates 19 on both sides drive the outer walls of the clamping seat 20, and the welding plate 22 is fixed under the action of the clamping seat 20.

[0031] In a preferred embodiment, there are four auxiliary plates 19 , and two auxiliary plates 19 form a group. The two groups of auxiliary plates 19 are respectively installed on the outer walls of the movable base 16 on both sides.

[0032] In the above structure, by installing the auxiliary plate 19 on the outer wall of the movable seat 16, the auxiliary plate 19 can be pulled during the movement of the movable seat 16, so that the distance between the outer walls of the auxiliary plates 19 on both sides changes, and then the clamping seat 20 can be pressed to the top of the welding plate 22 by the auxiliary plate 19, thereby fixing the welding plates 22 on both sides respectively.

[0033] Working principle: When the above-mentioned equipment is in use, the welding plate 22 is placed on the top of the welding table 1. When welding is required, the welding plate 22 needs to be fixed. The position of the support rod 3 is adjusted according to the width of the welding plate 22, so that the outer wall of the clamping seat 20 can be aligned with the top of the welding plate 22. When the position of the support rod 3 is adjusted, the clamping plate 7 is pulled downward to compress the fixing spring 6 downward, so that the clamping plate 7 is separated from the bottom of the welding table 1, and then the threaded cylinder 9 is rotated to pull the threaded rods 8 on both sides. The supporting rod 3 is moved on the top of the welding table 1. After the adjustment is completed, the clamping plate 7 is released. At this time, the supporting rod 3 can be fixed. The fixing pressure applied to the clamping seat 20 is adjusted according to the thickness of the welding plate 22. By rotating the adjusting nut 18, the adjusting nut 18 compresses the driving spring 17, thereby adjusting the position of the moving seat 16, so that the moving seat 16 moves along the outer wall of the auxiliary rod 15, thereby applying greater pressure on the clamping seat 20, better fixing the welding plate 22, and preventing the welding plate 22 from moving on the top of the welding table 1.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weldment fixture device for friction stir welding, comprising a welding table (1), characterized in that: The top of the welding table (1) is provided with a movable groove (2), the inner cavity of the welding table (1) is movably sleeved with a support rod (3), the outer wall of the support rod (3) is fixedly equipped with a fixed plate (4), the bottom of the support rod (3) is fixedly equipped with a base (5), the outer wall of the support rod (3) is movably sleeved with a fixing spring (6), the outer wall of the support rod (3) is movably sleeved with a clamping plate (7), the outer wall of the base (5) is fixedly equipped with a threaded rod (8), the outer wall of the threaded rod (8) is threadedly connected with a threaded cylinder (9), the outer wall of the support rod (3) is movably sleeved with a support plate (10), the inner cavity of the support plate (10) is movably sleeved with a locking rod (11), the outer wall of the locking rod (11) is fixedly equipped with a limiting ring (12), the locking rod ( The outer wall of the described support plate (10) is fixedly mounted with an auxiliary rod (15), the outer wall of the described auxiliary rod (15) is movably mounted with a movable seat (16), the outer wall of the described movable seat (16) is rotatably connected to an auxiliary plate (19), the outer wall of the described auxiliary rod (15) is threadedly connected with an adjusting nut (18), the outer wall of the described auxiliary rod (15) is movably mounted with a driving spring (17), the outer wall of the described auxiliary plate (19) is rotatably connected to a clamping seat (20), a welding plate (22) is installed on the top of the described welding table (1), a movable groove (21) is provided on the outer wall of the described support plate (10), and a locking hole (23) is provided on the outer wall of the described support rod (3).

2. A weldment fixture device for friction stir welding according to claim 1, characterized in that: The top and bottom of the fixing spring (6) are in contact with the top of the base (5) and the bottom of the clamping plate (7) respectively, and the fixing spring (6) is made of high carbon steel.

3. A weldment fixture device for friction stir welding according to claim 2, characterized in that: The two ends of the outer wall of the locking spring (13) are in contact with the outer wall of the limiting ring (12) and the inner wall of the support plate (10), respectively. The outer wall diameter of the locking rod (11) is equal to the inner wall diameter of the movable groove (21).

4. The weldment fixture device for friction stir welding according to claim 1, characterized in that: One end of the auxiliary plate (19) away from the movable seat (16) is rotatably connected to the outer wall of the clamping seat (20), and the width of the outer wall of the auxiliary plate (19) is equal to the distance between the inner wall of the movable groove (21).

5. The weldment fixture device for friction stir welding according to claim 4, characterized in that: The two ends of the outer wall of the driving spring (17) are in contact with the outer walls of the movable seat (16) and the adjusting nut (18), respectively. The outer wall diameter of the fixing plate (4) is larger than the distance between the inner walls of the movable groove (2).

6. The weldment fixture device for friction stir welding according to claim 1, characterized in that: There are four auxiliary plates (19), and two auxiliary plates (19) form a group. The two groups of auxiliary plates (19) are respectively installed on the outer walls of the movable seats (16) on both sides.

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