Welding positioning device of structural support

Abstract

The invention belongs to the technical field of welding, and particularly relates to a structural support welding positioning device which comprises a table top and a plurality of movable bases arranged on the table top, sliding grooves are formed in the two ends of the table top, the movable bases are clamped in the sliding grooves in a sliding mode, and a rotary table is rotationally installed on the movable bases. A supporting rod is arranged on the rotary table in a sliding mode, one end of the supporting rod is fixedly connected with a supporting plate, the supporting plate is connected with two arc-shaped clamping blocks in an up-down mode through an elastic mechanism, and the arc-shaped clamping blocks are used for clamping a structural support. According to the position needing to be welded, the structural support is placed at the angle position facilitating welding, the movable bases with the corresponding number are used according to the angle of the structural support, the structural support can be limited on any plane by using at least three movable bases, and the angle of the structural support can be adjusted at will; therefore, the welding requirement can be fully met, and the angle of the positioning device can be adjusted to be convenient for welding.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding, and particularly relates to a welding positioning device for a structural bracket. Background Art

[0002] The vehicle frame is a frame structure straddling the front and rear axles of an automobile and is the base of the automobile. Generally composed of two longitudinal beams and several cross beams, it is supported on the wheels via suspension devices, the front axle, and the rear axle. The vehicle frame must have sufficient strength and stiffness to withstand the load of the automobile and the impact transmitted from the wheels. The function of the vehicle frame is to support and connect the various assemblies of the automobile, keep the various assemblies in relatively correct positions, and bear various loads inside and outside the automobile. When the bracket is in production and maintenance, the welding process will be used.

[0003] The existing patent (publication number: CN213318564U) discloses a welding positioning device for a structural bracket, including: a base, at least two positioning grooves are provided on the base, and the positioning grooves are used for placing the workpiece bottom plate, and the positioning grooves are arranged along the length direction of the base. It can accurately position the structural bracket and improve the welding efficiency.

[0004] The shapes of automobile structural brackets are diverse, which makes the welding positions relatively off. The positions of conventional welding positioning devices are fixed. When welding, the structural bracket needs to be fixed in cooperation with the welding positioning device, which increases the difficulty of welding and is rather inconvenient. Summary of the Invention

[0005] Based on the technical problem existing in the background art: The shapes of automobile structural brackets are diverse, which makes the welding positions relatively off. The positions of conventional welding positioning devices are fixed. When welding, it is the structural bracket that needs to be fixed in cooperation with the welding positioning device, which increases the difficulty of welding and is rather inconvenient. The present invention proposes a welding positioning device for a structural bracket.

[0006] A welding positioning device for a structural bracket proposed by the present invention includes a tabletop and a plurality of moving bases arranged on the tabletop. Chutes are provided at both ends of the tabletop, and the moving bases are slidably clamped in the chutes. A turntable is rotatably installed on the moving base, a support rod is slidably arranged on the turntable, one end of the support rod is fixedly connected to a support plate, and two arc-shaped clamping blocks are vertically arranged on the support plate through an elastic mechanism. The arc-shaped clamping blocks are used for clamping the structural bracket; A pushing mechanism is arranged on the turntable. The pushing mechanism includes two gear shafts, and the support rod is meshed between the two gear shafts. One of the gear shafts is rotated by a pushing motor; A rotating mechanism is provided on the mobile base. The rotating mechanism includes an internal gear. A toothed block is fixedly connected to the bottom of the turntable. The toothed block meshes with the inner wall of the internal gear. The rotating mechanism is used to drive the turntable to rotate.

[0007] Preferably, the elastic mechanism includes a first rotating rod and a second rotating rod that are rotatably connected together. The end of the second rotating rod away from the first rotating rod is rotatably connected to the support plate. The end of the first rotating rod away from the second rotating rod is rotatably connected to the arc-shaped clamping block. A first spring is connected between the first rotating rod and the support plate. A second spring is connected between the first rotating rod and the arc-shaped clamping block.

[0008] Preferably, a groove is provided on the back of the arc-shaped clamping block. The first rotating rod is rotatably installed in the groove. A convex block is provided on the first rotating rod. The two ends of the second spring are respectively fixedly connected to the inner wall of the groove and the convex block. Connecting shafts are rotatably installed on both the first rotating rod and the support plate. Both ends of the first spring are fixedly connected with sleeve blocks. The two sleeve blocks are respectively rotatably installed on the two connecting shafts. One first spring is installed on each side of the first rotating rod.

[0009] Preferably, tooth grooves are provided on both sides of the support rod. The gear shaft meshes with the tooth grooves. The pushing motor is fixedly installed on the turntable. The driving end of the turntable is fixedly connected with a first convex shaft. The upper end of one of the gear shafts is fixedly connected with a second convex shaft. A linkage shaft is connected between the second convex shaft and the first convex shaft.

[0010] Preferably, one end of the linkage shaft is rotatably connected to the end of the connecting shaft away from the driving end of the pushing motor. The other end of the linkage shaft is rotatably connected to the end of the second convex shaft away from the gear shaft. The lower end of the support plate slides on the surface of the tabletop. The length of the second convex shaft is the same as the length of the first convex shaft.

[0011] Preferably, one end of the turntable is rotatably installed on the mobile base through a rotating shaft. The toothed block is fixedly connected to the position below the other end of the turntable.

[0012] Preferably, the rotating mechanism further includes a driven gear and a driving gear. The driven gear is rotatably installed on the mobile base and meshes with the inner wall of the internal gear. The driving gear meshes with the driven gear. A rotating motor is provided in the mobile base. The driving end of the rotating motor is fixedly connected with the driving gear.

[0013] Preferably, an arc-shaped shaft is further fixedly installed on the mobile base. The internal gear is rotatably installed in the arc-shaped shaft.

[0014] Preferably, the lower end of the movable base is slidably installed in a slide groove, a groove is provided on the inner wall of the slide groove, a plurality of threaded shafts are inserted into the lower end of the movable base, both ends of the threaded shafts pass through the grooves, and nuts are threadedly installed at both ends of the threaded shafts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. According to the welding position required, the structural support is placed at an angle convenient for welding. Each arc-shaped block is abutted against the edge of the structural support to limit its position. Three points can determine a plane, so at least three mobile bases can be used to limit the structural support to any plane. The angle of the structural support can be adjusted arbitrarily, so as to fully meet the needs of welding. The positioning device can be adjusted to an angle convenient for welding.

[0016] 2. This device can arbitrarily increase or decrease the number of mobile bases according to positioning needs. The mobile base is slidably installed in the slide groove. The threaded shaft passes through the slot and the lower end of the mobile base and is fastened with a nut. Multiple mobile bases can be fixedly installed in the slide groove, and the installation position can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a welding positioning device for a structural support proposed by the present invention; Figure 2 A partial side structural schematic diagram of a welding positioning device for a structural support proposed by the present invention; Figure 3 A partial bottom view structural schematic diagram of a welding positioning device for a structural support proposed by the present invention; Figure 4 A partial front structural schematic diagram of a welding positioning device for a structural support proposed by the present invention; Figure 5 It is a structural schematic diagram of a support plate, an arc-shaped clamping block, and an elastic mechanism; Figure 6 It is a structural schematic diagram of the rotating mechanism and the pushing mechanism; Figure 7 A schematic diagram of a partial planar structure of a welding positioning device for a structural support proposed by the present invention; Figure 8 This is a partial top plan structural schematic diagram of a welding positioning device for a structural support proposed by the present invention.

[0018] In the figure: 1 tabletop, 2 sliding groove, 3 moving base, 4 support rod, 5 support plate, 6 arc-shaped clamping block, 7 arc-shaped shaft, 8 turntable, 9 internal gear, 10 gear shaft, 11 first rotating rod, 12 second rotating rod, 13 first spring, 14 second spring, 15 connecting shaft, 16 sleeve block, 17 groove, 18 convex block, 19 linkage shaft, 20 second convex shaft, 21 driven gear, 22 driving gear, 23 tooth block, 24 pushing motor, 25 first convex shaft, 26 rotating shaft, 27 tooth groove, 28 slot, 29 threaded shaft, 30 nut. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1 - 8 , a welding positioning device for a structural bracket, including a tabletop 1 and a plurality of moving bases 3 arranged on the tabletop 1. Both ends of the tabletop 1 are provided with sliding grooves 2, and the moving bases 3 are slidably clamped in the sliding grooves 2. A turntable 8 is rotatably installed on the moving base 3, a support rod 4 is slidably arranged on the turntable 8, one end of the support rod 4 is fixedly connected with a support plate 5, and the support plate 5 is connected with two arc-shaped clamping blocks 6 up and down through an elastic mechanism. The arc-shaped clamping blocks 6 are used for clamping the structural bracket; A pushing mechanism is arranged on the turntable 8. The pushing mechanism includes two gear shafts 10, and the support rod 4 is meshed between the two gear shafts 10. One of the gear shafts 10 is rotated by a pushing motor 24; A rotating mechanism is arranged on the moving base 3. The rotating mechanism includes an internal gear 9. The bottom of the turntable 8 is fixedly connected with a tooth block 23, and the tooth block 23 is meshed with the inner wall of the internal gear 9. The rotating mechanism is used to drive the turntable 8 to rotate.

[0021] The elastic mechanism includes a first rotating rod 11 and a second rotating rod 12 that are rotatably connected together. One end of the second rotating rod 12 away from the first rotating rod 11 is rotatably connected with the support plate 5, and one end of the first rotating rod 11 away from the second rotating rod 12 is rotatably connected with the arc-shaped clamping block 6. A first spring 13 is connected between the first rotating rod 11 and the support plate 5, and a second spring 14 is connected between the first rotating rod 11 and the arc-shaped clamping block 6. When multiple arc-shaped clamping blocks 6 position and clamp the structural bracket, both the first spring 13 and the second spring 14 are elastic. Under the elastic action, the arc-shaped clamping block 6 can be abutted against the side of the bracket. Multiple arc-shaped clamping blocks 6 cooperate with each other to effectively fix the bracket, and then perform welding operations on it.

[0022] A groove 17 is provided on the back of the arc-shaped clamping block 6. The first rotating rod 11 is rotatably installed in the groove 17. A convex block 18 is provided on the first rotating rod 11. Both ends of the second spring 14 are fixedly connected to the inner wall of the groove 17 and the convex block 18 respectively. Connecting shafts 15 are rotatably installed on both the first rotating rod 11 and the support plate 5. Both ends of the first spring 13 are fixedly connected with sleeve blocks 16. The two sleeve blocks 16 are respectively rotatably installed on the two connecting shafts 15. One first spring 13 is installed on each side of the first rotating rod 11. The second spring 14 is connected between the first rotating rod 11 and the arc-shaped clamping block 6 through the convex block 18. The first spring 13 is connected between the first rotating rod 11 and the support plate 5 through the sleeve block 16 and the connecting shaft 15. The sleeve block 16 is sleeved on the connecting shaft 15. When the angle between the first rotating rod 11 and the second rotating rod 12 changes, the angle can be adaptively adjusted to facilitate clamping.

[0023] Tooth grooves 27 are provided on both sides of the support rod 4. The gear shaft 10 meshes with the tooth grooves 27. The pushing motor 24 is fixedly installed on the turntable 8. The driving end of the turntable 8 is fixedly connected with a first convex shaft 25. The upper end of one of the gear shafts 10 is fixedly connected with a second convex shaft 20. A linkage shaft 19 is connected between the second convex shaft 20 and the first convex shaft 25. The pushing motor 24 can drive the first convex shaft 25 to rotate through the driving end. As the first convex shaft 25 rotates, the second convex shaft 20 can be pulled through the linkage shaft 19. Under the pulling action of the linkage shaft 19, the second convex shaft 20 will rotate. Then the second convex shaft 20 drives the gear shaft 10 to rotate. As the gear shaft 10 rotates, the support rod 4 can be pushed to move, and then the positions of the support plate 5 and the arc-shaped clamping block 6 are changed, and the arc-shaped clamping block 6 can be moved closer to the structural support.

[0024] One end of the linkage shaft 19 is rotatably connected to the end of the connecting shaft 15 away from the driving end of the pushing motor 24, and the other end of the linkage shaft 19 is rotatably connected to the end of the second convex shaft 20 away from the gear shaft 10. The lower end of the support plate 5 slides on the surface of the tabletop 1. The length of the second convex shaft 20 is the same as that of the first convex shaft 25. Both ends of the second convex shaft 20 are respectively connected to the linkage shaft 19 and the gear shaft 10, and both ends of the first convex shaft 25 are respectively connected to the linkage shaft 19 and the pushing motor 24. Therefore, when the first convex shaft 25 deflects, the second convex shaft 20 can be pulled to deflect through the linkage shaft 19, and then the rotation of the driving end of the pushing motor 24 is transmitted to the gear shaft 10, causing the gear shaft 10 to rotate.

[0025] One end of the turntable 8 is rotatably installed on the moving base 3 through a rotating shaft 26. A tooth block 23 is fixedly connected to the lower part of the other end of the turntable 8. The turntable 8 is rotatably installed on the moving base 3 through the rotating shaft 26. The tooth block 23 is arranged on the side of the turntable 8 away from the rotation center. Then when the internal gear 9 rotates, the relative position of the tooth block 23 can be changed, and then the orientation angle of the turntable 8 can be changed.

[0026] The rotating mechanism further includes a driven gear 21 and a driving gear 22. The driven gear 21 is rotatably installed on the moving base 3, and the moving base 3 meshes with the inner wall of the internal gear 9. The driving gear 22 meshes with the driven gear 21. A rotating motor is arranged inside the moving base 3, and the driving end of the rotating motor is fixedly connected to the driving gear 22. The rotating motor drives the driving gear 22 to rotate through the driving end. The driving gear 22 meshes with the driven gear 21 to drive it to rotate. The rotation of the driven gear 21 will drive the internal gear 9 to rotate, and then the position of the tooth block 23 can be changed as the internal gear 9 rotates, realizing the rotation effect of the turntable 8.

[0027] An arc-shaped shaft 7 is also fixedly installed on the moving base 3. The internal gear 9 is rotatably installed inside the arc-shaped shaft 7, and the arc-shaped shaft 7 limits the position of the internal gear 9.

[0028] The lower end of the moving base 3 is slidably installed in the chute 2. A slot 28 is opened on the inner wall of the chute 2. A plurality of threaded shafts 29 are inserted into the lower end of the moving base 3. Both ends of the threaded shaft 29 pass through the slot 28, and nuts 30 are threadedly installed at both ends of the threaded shaft 29. The threaded shaft 29 is fastened by the nut 30, and then the position of the moving base 3 on the chute 2 can be fixed. Then, according to the shape of the structural support, the position of the moving base 3 is adjusted to facilitate its clamping and fixing.

[0029] When positioning the structural support, according to the position to be welded, the structural support is placed at an angle convenient for welding. According to the angle of the structural support, the corresponding number of moving bases 3 is used. The position of the structural support is limited by the abutment of each arc-shaped block 6 against the edge of the structural support. Three points can determine a plane, so at least three moving bases 3 can limit the structural support on any plane. The angle of the structural support can be adjusted arbitrarily, so as to fully meet the needs of welding. This positioning device can be adjusted to an angle convenient for welding.

[0030] Two arc-shaped blocks 6 are connected to each support plate 5 through an elastic mechanism. The arc-shaped blocks 6 are in contact with and abutted against the surface of the steel pipe of the structural support. The arc-shaped blocks 6 are rotatably connected to the first rotating rod 11. The elastic force of the second spring 14 makes it closely fit with the surface of the steel pipe. The two arc-shaped blocks 6 are simultaneously in contact with the same section of the steel pipe, so when supporting, it is more stable and effective. The elastic force of the first spring 13 can be used to expand the first rotating rod 11 and the second rotating rod 12, adaptively making the arc-shaped blocks 6 fit well with the surface of the steel pipe. The elastic mechanism is movably connected to the arc-shaped blocks 6 and the support plates 5 on both sides. The movable connection ensures that when clamping and positioning, it can effectively adapt to different angular environments and better fit the unconventional structural shape of the structural support.

[0031] The support plate 5 is moved closer to the structural support by a pushing mechanism. The pushing motor 24 drives the first convex shaft 25 to rotate through the driving end. The rotation of the first convex shaft 25 drives the linkage shaft 19 to deflect. When the linkage shaft 19 moves, it will pull the second convex shaft 20, thereby causing the second convex shaft 20 to drive one of the gear shafts 10 to rotate. As the gear shaft 10 rotates, the engaged tooth grooves 27 can be pushed, causing the tooth grooves 27 to move forward or backward to adjust the overall position of the support plate 5.

[0032] The orientation of the support rod 4 can be changed under the action of the rotating mechanism. The rotating motor drives the driving gear 22 to rotate through the driving end. The driving gear 22 meshes with the driven gear 21. The driving gear 22 drives the driven gear 21 to rotate. The driven gear 21 meshes with the inner wall of the internal gear 9. The internal gear 9 rotates as the driven gear 21 rotates. When the internal gear 9 rotates on the arc-shaped shaft 7, it will drive the tooth block 23 to move, thereby causing the turntable 8 to rotate. The rotation of the turntable 8 can change the orientation of the support rod 4 and the pushing mechanism provided thereon, and finally achieve the effect of changing the orientation of the support plate 5.

[0033] The number of moving bases 3 used in this device can be arbitrarily increased or decreased according to positioning needs. The moving bases 3 are slidably installed in the chute 2. The threaded shaft 29 passes through the slotted opening 28 and the lower end of the moving base 3, and is fastened with a nut 30. Multiple moving bases 3 can be fixedly installed in the chute 2, and the installation positions can be adjusted.

[0034] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A welding positioning device for a structural support, characterized in that: The invention comprises a table top (1) and a plurality of movable bases (3) arranged on the table top (1), wherein both ends of the table top (1) are provided with slide grooves (2), the movable bases (3) are slidably engaged in the slide grooves (2), a turntable (8) is rotatably mounted on the movable base (3), a support rod (4) is slidably arranged on the turntable (8), one end of the support rod (4) is fixedly connected to a support plate (5), the support plate (5) is connected to two arc-shaped blocks (6) arranged up and down by an elastic mechanism, and the arc-shaped blocks (6) are used to engage the structural support; The turntable (8) is provided with a pushing mechanism, the pushing mechanism comprising two gear shafts (10), the support rod (4) being meshedly arranged between the two gear shafts (10), one of the gear shafts (10) being rotated by a pushing motor (24); The movable base (3) is provided with a rotating mechanism, the rotating mechanism comprising an internal gear (9), a tooth block (23) is fixedly connected to the bottom of the turntable (8), the tooth block (23) meshes with the inner wall of the internal gear (9), and the rotating mechanism is used to drive the turntable (8) to rotate.

2. A welding positioning device for a structural support according to claim 1, characterized in that: The elastic mechanism comprises a first rotating rod (11) and a second rotating rod (12) which are rotatably connected together, one end of the second rotating rod (12) away from the first rotating rod (11) is rotatably connected to the support plate (5), one end of the first rotating rod (11) away from the second rotating rod (12) is rotatably connected to the arc-shaped clamping block (6), a first spring (13) is connected between the first rotating rod (11) and the support plate (5), and a second spring (14) is connected between the first rotating rod (11) and the arc-shaped clamping block (6).

3. A welding positioning device for a structural support according to claim 2, characterized in that: A groove (17) is provided on the back of the arc-shaped clamping block (6), the first rotating rod (11) is rotatably mounted in the groove (17), a protrusion (18) is provided on the first rotating rod (11), two ends of the second spring (14) are respectively fixedly connected to the inner wall of the groove (17) and the protrusion (18), the first rotating rod (11) and the support plate (5) are both rotatably mounted with a connecting shaft (15), both ends of the first spring (13) are fixedly connected with a sleeve block (16), the two sleeve blocks (16) are respectively rotatably mounted on the two connecting shafts (15), and a first spring (13) is respectively mounted on both sides of the first rotating rod (11).

4. A welding positioning device for a structural support according to claim 1, characterized in that: Tooth grooves (27) are provided on both sides of the support rod (4), the gear shaft (10) meshes with the tooth grooves (27), the push motor (24) is fixedly mounted on the turntable (8), the driving end of the turntable (8) is fixedly connected to a first cam shaft (25), the upper end of one of the gear shafts (10) is fixedly connected to a second cam shaft (20), and a linkage shaft (19) is connected between the second cam shaft (20) and the first cam shaft (25).

5. A welding positioning device for a structural support according to claim 4, characterized in that: One end of the linkage shaft (19) is rotatably connected to an end of the connection shaft (15) away from the driving end of the push motor (24), and the other end of the linkage shaft (19) is rotatably connected to an end of the second convex shaft (20) away from the gear shaft (10). The lower end of the support plate (5) slides on the surface of the table (1), and the length of the second convex shaft (20) is the same as that of the first convex shaft (25).

6. The welding positioning device of a structural support according to claim 1, characterized in that: The lower part of one end of the turntable (8) is rotatably mounted on the movable base (3) via a rotating shaft (26), and the gear block (23) is fixedly connected to a lower part of the other end of the turntable (8).

7. A welding positioning device for a structural support according to claim 6, characterized in that: The rotating mechanism further comprises a driven gear (21) and a driving gear (22); the driven gear (21) is rotatably mounted on the movable base (3), and the movable base (3) meshes with the inner wall of the internal gear (9); the driving gear (22) meshes with the driven gear (21); a rotating motor is provided in the movable base (3), and a driving end of the rotating motor is fixedly connected to the driving gear (22).

8. A welding positioning device for a structural support according to claim 7, characterized in that: The movable base (3) is also fixedly mounted with an arc-shaped shaft (7), and the internal gear (9) is rotatably mounted inside the arc-shaped shaft (7).

9. The welding positioning device of a structural support according to claim 1, characterized in that: The lower end of the movable base (3) is slidably mounted in the slide groove (2), a slot (28) is provided on the inner wall of the slide groove (2), a plurality of threaded shafts (29) are inserted into the lower end of the movable base (3), both ends of the threaded shafts (29) pass through the slots (28), and nuts (30) are threadedly mounted on both ends of the threaded shafts (29).

Images