Aluminum spot welding positioning tool

Abstract

The utility model discloses an aluminum spot welding positioning tool which comprises a positioning frame and a bottom plate, the bottom end of the positioning frame is provided with the bottom plate, the top end of the bottom plate on one side of the positioning frame is provided with a transverse moving frame, the top end of the transverse moving frame is provided with a moving seat in a sliding mode, and a supporting frame is installed in the positioning frame. A universal driving shaft is movably installed in the supporting frame, the universal driving shaft extends to the outer portion of the supporting frame, and a supporting plate is installed on the outer wall of the positioning frame. According to the positioning tool, the positioning tool can be conveniently adjusted to adapt to workpieces with different lengths, the workpieces can be conveniently and rapidly clamped and fixed through the positioning tool, and the working efficiency is improved; and in addition, the workpiece can be conveniently rotated, adjusted and positioned, the welding range of the workpiece is widened, and the workpiece clamping, positioning and welding efficiency of the positioning tool is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to an aluminum spot welding positioning tooling. Background Technology

[0002] Welding technology plays an important role in the modern machining field. By bringing the workpieces into close contact and connecting the current, the contact area of ​​the workpieces melts under the action of resistance heat. In spot welding, pressure is first applied to bring the workpieces into close contact, and then the current is connected. The contact area of ​​the workpieces melts under the action of resistance heat, and after cooling, a weld spot is formed. It is particularly suitable for welding automobile bodies and carriages, as well as aircraft fuselages.

[0003] As disclosed in the authorization announcement number CN104972256B, a spot welding positioning fixture includes a positioning table. The upper surface of the positioning table is provided with a cross-shaped positioning groove. The depth of the positioning groove is greater than the sum of the thicknesses of the two plates to be welded. The bottom of the positioning groove is provided with a first positioning hole for the welding head of the spot welding machine located below the positioning table to pass through. The fixture also includes a cross-shaped positioning block that can be fitted with the positioning groove. The positioning block is provided with a second positioning hole with the center line of the intersection of the positioning block as the axis. The second positioning hole is used to position the welding head of the spot welding machine located above the positioning table.

[0004] Although it achieves efficient preparation of test samples required for cross tensile tests of multiple weld points, it can effectively control the test sample preparation error and ensure the consistency of the test samples, thereby ensuring the validity of the cross tensile test data and laying the foundation for accurately studying the weld point failure mechanism and predicting weld point failure during the collision process.

[0005] However, this does not solve the problem that existing positioning fixtures are generally not convenient to adjust to workpieces of different lengths, are not convenient to clamp and fix the workpiece, and are not convenient to rotate and adjust the positioning of the workpiece, which greatly affects the welding range of the workpiece and the efficiency of the positioning fixture in clamping, positioning and welding the workpiece. Utility Model Content

[0006] The purpose of this utility model is to provide an aluminum spot welding positioning fixture to solve the problems mentioned in the background art, such as the inconvenience of adjusting the positioning fixture to adapt to workpieces of different lengths, the inconvenience of clamping and fixing the workpiece, and the inconvenience of rotating and adjusting the positioning of the workpiece, which affect the welding range of the workpiece and the efficiency of the positioning fixture in clamping, positioning and welding the workpiece.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an aluminum spot welding positioning fixture, comprising a positioning frame and a base plate. The base plate is installed at the bottom end of the positioning frame, and a transverse moving frame is installed at the top of the base plate on one side of the positioning frame. A moving seat is slidably installed at the top of the transverse moving frame. A support frame is installed inside the positioning frame, and a linkage shaft is movably installed inside the support frame, extending to the outside of the support frame. A support plate is installed on the outer wall of the positioning frame. A first motor is installed at the top of the base plate on one side of the transverse moving frame. A threaded rod is installed at the output end of the first motor, extending into the interior of the transverse moving frame. A threaded sleeve is fitted on the surface of the threaded rod below the moving seat, and the threaded sleeve is connected to the moving seat.

[0008] Preferably, a movable shaft is movably mounted inside the movable seat, and the movable shaft extends to the outside of the movable seat. A disc is mounted on one adjacent end of both the movable shaft and the linkage shaft.

[0009] Preferably, a connecting seat is installed at one end of each disc, and clamping arms are symmetrically slidably installed on the outer wall of each connecting seat.

[0010] Preferably, an aluminum spot welding machine is mounted on the top of the positioning frame, and a welding gun is mounted on the bottom of the aluminum spot welding machine.

[0011] Preferably, a stepper motor is installed at the center of each of the discs, and a power shaft is installed at the output end of each stepper motor, with the power shaft extending to the outside of the connecting seat.

[0012] Preferably, each of the connecting seats has a sliding groove on the outer wall near the clamping arm, and each of the clamping arms has a limiting block installed on the outer wall near the sliding groove, with the limiting block slidably connected to the sliding groove.

[0013] Preferably, a transmission arm is installed at the end of the power shaft away from the stepper motor, and a rocker arm is symmetrically and movably installed on the outer wall of the transmission arm, and the rocker arm is movably connected to the clamping arm.

[0014] Preferably, a support base is installed at the top of the support plate, a servo motor is provided on the outer side of the support base, a worm gear is installed at the output end of the servo motor and the worm gear extends into the interior of the support base, and a worm wheel is fitted on the surface of the linkage shaft and meshes with the worm gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the positioning fixture not only realizes the convenient adjustment of the positioning fixture to adapt to workpieces of different lengths, and facilitates the convenient clamping and fixing of the workpiece, but also facilitates the convenient rotation adjustment and positioning of the workpiece, increases the welding range of the workpiece, and improves the efficiency of the positioning fixture in clamping, positioning and welding the workpiece.

[0016] (1) The first motor drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, the threaded sleeve drives the moving seat to move, and the moving seat drives the disc on one side to move, so as to adjust the distance between the two sets of discs. The disc drives the power shaft, stepper motor, connecting seat and clamping arm to move. According to the length of the workpiece being processed, it moves to the appropriate position, so that the positioning fixture can adapt to workpieces of different lengths. This realizes the convenient adjustment of the positioning fixture to adapt to workpieces of different lengths, and facilitates the quick adjustment and fixing of workpieces of different lengths.

[0017] (2) The stepper motor drives the power shaft to rotate, the power shaft drives the transmission arm to rotate, the transmission arm drives the rocker arms on both sides to move, the rocker arms drive the clamping arms to move, and the two sets of clamping arms move closer to each other to clamp and fix the workpiece. When the clamping arms move, the clamping arms drive the limit block to slide inside the sliding groove for limit support, which facilitates the positioning fixture to quickly clamp and fix the workpiece, realizes the convenient clamping and fixing of the workpiece by the positioning fixture, and improves the convenience of the positioning fixture to fix the workpiece.

[0018] (3) The servo motor drives the worm gear to rotate inside the support base. The worm gear drives the worm wheel to rotate, and the worm wheel drives the linkage shaft to rotate. Under the support of the support frame, the linkage shaft drives the disc, stepper motor, connecting seat, clamping arm and clamped workpiece to rotate on one side. The moving seat provides movable support to the disc on the other side through the movable shaft, so as to facilitate the circumferential rotation adjustment of the workpiece position and facilitate the positioning and welding operation of the workpiece. Under the support of the positioning frame, the aluminum spot welding machine welds the workpiece through the welding gun, realizing the convenient rotation adjustment and positioning of the workpiece by the positioning fixture, increasing the welding range of the workpiece, and improving the efficiency of the positioning fixture in clamping, positioning and welding the workpiece. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 3 This is a three-dimensional schematic diagram of the support base of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the clamping arm of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the movable seat of this utility model;

[0024] Figure 6 This is a three-dimensional schematic diagram of the limiting block of this utility model.

[0025] In the diagram: 1. Positioning frame; 2. Base plate; 3. Moving seat; 4. Support frame; 5. Support plate; 6. Welding torch; 7. Aluminum spot welding machine; 8. Lateral moving frame; 9. First motor; 10. Threaded sleeve; 11. Threaded rod; 12. Disc; 13. Power shaft; 14. Stepper motor; 15. Connecting seat; 16. Clamping arm; 17. Rocker arm; 18. Transmission arm; 19. Sliding groove; 20. Servo motor; 21. Worm gear; 22. Worm wheel; 23. Linkage shaft; 24. Support seat; 25. Movable shaft; 26. Limit block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figure 1-6 This utility model provides an embodiment of an aluminum spot welding positioning fixture, comprising a positioning frame 1 and a base plate 2. The base plate 2 is mounted on the bottom end of the positioning frame 1. A transverse moving frame 8 is mounted on the top of the base plate 2 on one side of the positioning frame 1. A moving seat 3 is slidably mounted on the top of the transverse moving frame 8. A support frame 4 is mounted inside the positioning frame 1. A linkage shaft 23 is movably mounted inside the support frame 4 and extends to the outside of the support frame 4. A support plate 5 is mounted on the outer wall of the positioning frame 1. A first motor 9 is mounted on the top of the base plate 2 on one side of the transverse moving frame 8. A [missing information - likely a device or component] is mounted on the output end of the first motor 9. A threaded rod 11 extends into the interior of the transverse moving frame 8. A threaded sleeve 10 is fitted on the surface of the threaded rod 11 below the moving seat 3, and the threaded sleeve 10 is connected to the moving seat 3. A movable shaft 25 is movably installed inside the moving seat 3, and the movable shaft 25 extends to the outside of the moving seat 3. A disc 12 is installed at one end of the movable shaft 25 and the linkage shaft 23, and a connecting seat 15 is installed at one end of the disc 12. Clamping arms 16 are symmetrically slidably installed on the outer wall of the connecting seat 15. An aluminum spot welding machine 7 is installed at the top of the positioning frame 1, and a welding gun 6 is installed at the bottom of the aluminum spot welding machine 7.

[0028] Supported by the base plate 2, the first motor 9 is activated. The first motor 9 drives the threaded rod 11 to rotate. With the threaded connection between the threaded rod 11 and the threaded sleeve 10, the threaded rod 11 drives the threaded sleeve 10 to move. The threaded sleeve 10 drives the moving seat 3 to move. The moving seat 3 drives the disc 12 on one side to move, thereby adjusting the distance between the two discs 12. The disc 12 drives the power shaft 13, the stepper motor 14, the connecting seat 15, and the clamping arm 16 to move. According to the length of the workpiece, it moves to a suitable position, making it convenient for the positioning fixture to adapt to workpieces of different lengths. This realizes the convenient adjustment of the positioning fixture to adapt to workpieces of different lengths, and facilitates the quick adjustment and fixation of workpieces of different lengths.

[0029] Each disk 12 has a stepper motor 14 installed at its center. Each stepper motor 14 has a power shaft 13 installed at its output end. The power shaft 13 extends to the outside of the connecting seat 15. Each connecting seat 15 has a sliding groove 19 on its outer wall near the clamping arm 16. Each clamping arm 16 has a limit block 26 installed on its outer wall near the sliding groove 19. The limit block 26 is slidably connected to the sliding groove 19. Each power shaft 13 has a transmission arm 18 installed at its end away from the stepper motor 14. Each transmission arm 18 has a rocker arm 17 symmetrically and movably installed on its outer wall. The rocker arm 17 is movably connected to the clamping arm 16.

[0030] The workpiece is placed between the clamping arms 16 on both sides. The stepper motor 14 is turned on. With the support of the disc 12, the stepper motor 14 drives the power shaft 13 to rotate. The power shaft 13 drives the transmission arm 18 to rotate. The transmission arm 18 drives the rocker arms 17 on both sides to move. The rocker arms 17 drive the clamping arms 16 to move. The two sets of clamping arms 16 move closer to each other to clamp and fix the workpiece. When the clamping arms 16 move, the clamping arms 16 drive the limiting block 26 to slide inside the sliding groove 19 for limiting support. This facilitates the quick clamping and fixing of the workpiece by the positioning fixture, realizes the convenient clamping and fixing of the workpiece by the positioning fixture, and improves the convenience of fixing the workpiece by the positioning fixture.

[0031] A support base 24 is installed on the top of the support plate 5. A servo motor 20 is provided on the outer side of the support base 24. A worm gear 21 is installed at the output end of the servo motor 20 and extends into the interior of the support base 24. A worm wheel 22 is fitted on the surface of the linkage shaft 23 and meshes with the worm gear 21.

[0032] When the servo motor 20 is turned on, it rotates under the support of the support plate 5. The servo motor 20 drives the worm gear 21 to rotate inside the support base 24. Under the meshing of the worm gear 21 and the worm wheel 22, the worm gear 21 drives the worm wheel 22 to rotate, and the worm wheel 22 drives the linkage shaft 23 to rotate. Under the support of the support frame 4, the linkage shaft 23 drives the disc 12, stepper motor 14, connecting seat 15, clamping arm 16, and clamped workpiece on one side to rotate. The moving seat 3 provides movable support to the disc 12 on the other side through the movable shaft 25, so as to facilitate the circumferential rotation adjustment of the workpiece position and facilitate the positioning and welding operation of the workpiece. Under the support of the positioning frame 1, the aluminum spot welding machine 7 welds the workpiece through the welding gun 6, realizing the convenient rotation adjustment and positioning of the workpiece by the positioning fixture, increasing the welding range of the workpiece, and improving the efficiency of the positioning fixture in clamping, positioning, and welding the workpiece.

[0033] In this embodiment, during use: the first motor 9 drives the threaded rod 11 to rotate, the threaded rod 11 drives the threaded sleeve 10 to move, the threaded sleeve 10 drives the movable seat 3 to move, and the movable seat 3 drives the disc 12 on one side to move, thereby adjusting the distance between the two sets of discs 12. The disc 12 drives the power shaft 13, stepper motor 14, connecting seat 15, and clamping arm 16 to move, moving to a suitable position according to the length of the workpiece, making it convenient for the positioning fixture to adapt to workpieces of different lengths. The workpiece is placed between the clamping arms 16 on both sides. The stepper motor 14 drives the power shaft 13 to rotate, the power shaft 13 drives the transmission arm 18 to rotate, the transmission arm 18 drives the rocker arms 17 on both sides to move, and the rocker arms 17 drive the clamping arms 16 to move. The clamping arms 16 move close together to clamp and fix the workpiece. When the clamping arms 16 move, they drive the limiting block 26 to slide inside the sliding groove 19 for limiting support, which facilitates the quick clamping and fixing of the workpiece by the positioning fixture. The servo motor 20 drives the worm gear 21 to rotate inside the support base 24. The worm gear 21 drives the worm wheel 22 to rotate, and the worm wheel 22 drives the linkage shaft 23 to rotate. Under the support of the support frame 4, the linkage shaft 23 drives the disc 12, stepper motor 14, connecting seat 15, clamping arms 16 and the clamped workpiece on one side to rotate. The moving seat 3 provides movable support to the disc 12 on the other side through the movable shaft 25, so as to facilitate the circumferential rotation adjustment of the workpiece position and complete the use of the positioning fixture.

Claims

1. An aluminum spot welding positioning fixture, characterized in that: The device includes a positioning frame (1) and a base plate (2). The base plate (2) is installed at the bottom of the positioning frame (1). A transverse moving frame (8) is installed at the top of the base plate (2) on one side of the positioning frame (1). A moving seat (3) is slidably installed at the top of the transverse moving frame (8). A support frame (4) is installed inside the positioning frame (1). A linkage shaft (23) is movably installed inside the support frame (4) and extends to the outside of the support frame (4). A support plate (5) is installed on the outer wall of the positioning frame (1). A first motor (9) is installed at the top of the base plate (2) on one side of the transverse moving frame (8). A threaded rod (11) is installed at the output end of the first motor (9) and extends to the inside of the transverse moving frame (8). A threaded sleeve (10) is fitted on the surface of the threaded rod (11) below the moving seat (3) and is connected to the moving seat (3).

2. The aluminum spot welding positioning fixture according to claim 1, characterized in that: The movable base (3) is movably mounted with a movable shaft (25) inside, and the movable shaft (25) extends to the outside of the movable base (3). A disc (12) is mounted on one of the adjacent ends of the movable shaft (25) and the linkage shaft (23).

3. The aluminum spot welding positioning fixture according to claim 2, characterized in that: Each of the discs (12) is equipped with a connecting seat (15) at one end, and each of the connecting seats (15) is symmetrically and slidably equipped with a clamping arm (16) on its outer wall.

4. The aluminum spot welding positioning fixture according to claim 1, characterized in that: An aluminum spot welding machine (7) is installed at the top of the positioning frame (1), and a welding gun (6) is installed at the bottom of the aluminum spot welding machine (7).

5. The aluminum spot welding positioning fixture according to claim 2, characterized in that: Each of the disks (12) is equipped with a stepper motor (14) at its center. Each of the stepper motors (14) has a power shaft (13) at its output end, and the power shaft (13) extends to the outside of the connecting seat (15).

6. The aluminum spot welding positioning fixture according to claim 5, characterized in that: Each of the connecting seats (15) has a sliding groove (19) on the outer wall near the clamping arm (16), and each of the clamping arms (16) has a limiting block (26) on the outer wall near the sliding groove (19), and the limiting block (26) is slidably connected to the sliding groove (19).

7. The aluminum spot welding positioning fixture according to claim 5, characterized in that: The power shaft (13) is equipped with a transmission arm (18) at the end away from the stepper motor (14). A rocker arm (17) is symmetrically and movably mounted on the outer wall of the transmission arm (18), and the rocker arm (17) is movably connected to the clamping arm (16).

8. The aluminum spot welding positioning fixture according to claim 1, characterized in that: A support base (24) is installed on the top of the support plate (5). A servo motor (20) is provided on the outer side of the support base (24). A worm gear (21) is installed at the output end of the servo motor (20), and the worm gear (21) extends into the interior of the support base (24). A worm wheel (22) is fitted on the surface of the linkage shaft (23), and the worm wheel (22) meshes with the worm gear (21).

Images