Welding positioning device for structural support

Abstract

The present invention belongs to the field of welding technology, and in particular relates to a welding positioning device for a structural support, comprising a table and a plurality of movable bases arranged on the table, wherein both ends of the table are provided with slide grooves, wherein the movable bases are slidably engaged in the slide grooves, a turntable is rotatably mounted on the movable base, a support rod is slidably arranged on the turntable, one end of the support rod is fixedly connected to a support plate, and the support plate is provided with two arc-shaped clamping blocks connected to the upper and lower parts through an elastic mechanism, and the arc-shaped clamping blocks are used to clamp the structural support. According to the position where welding is required, the structural support is placed at an angle convenient for welding, and a corresponding number of movable bases are used according to the angle of the structural support. Then, at least three movable bases are used to confine the structural support to any plane, and 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.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a welding positioning device for a structural support. Background Art

[0002] The vehicle frame is a framework structure that spans the front and rear axles of a vehicle and serves as the vehicle's foundation. It typically consists of two longitudinal beams and several transverse beams, supporting the wheels via the suspension, front axle, and rear axle. The frame must possess sufficient strength and rigidity to withstand the vehicle's loads and the impacts from the wheels. Its function is to support and connect the vehicle's various assemblies, ensuring they maintain relative position and withstand various internal and external loads. Welding is often used during production and maintenance of the frame.

[0003] An existing patent (publication number CN213318564U) discloses a welding positioning device for a structural support. The device comprises a base with at least two positioning slots for receiving a workpiece base. The slots are arranged along the length of the base. This device enables precise positioning of the structural support, improving welding efficiency.

[0004] The shapes of automobile structural brackets vary, which makes the welding position more biased. The conventional welding positioning device has a fixed position. When welding, the structural bracket needs to be fixed with the welding positioning device, which increases the difficulty of welding and is more inconvenient. Summary of the Invention

[0005] Based on the background technology, there is a problem that: the shapes of automobile structural brackets are different, which makes the welding position relatively biased. The conventional welding positioning device is fixed in position. When welding, the structural bracket needs to be fixed with the welding positioning device, which increases the difficulty of welding and is a relatively inconvenient technical problem. The present invention proposes a welding positioning device for the structural bracket.

[0006] The present invention proposes a welding positioning device for a structural support, comprising a table and a plurality of movable bases arranged on the table, wherein both ends of the table are provided with slide grooves, the movable bases are slidably engaged in the slide grooves, a turntable is rotatably mounted on the movable base, a support rod is slidably arranged on the turntable, one end of the support rod is fixedly connected to a support plate, and the support plate is provided with two arc-shaped clamping blocks connected to the upper and lower parts by an elastic mechanism, and the arc-shaped clamping blocks are used to clamp the structural support;

[0007] The turntable is provided with a pushing mechanism, which includes two gear shafts, the support rod is meshed and arranged between the two gear shafts, and one of the gear shafts is rotated by a pushing motor;

[0008] The movable base is provided with a rotating mechanism, which includes an internal gear. A gear block is fixedly connected to the bottom of the turntable, which meshes with the inner wall of the internal gear. The rotating mechanism is used to drive the turntable to rotate.

[0009] Preferably, the elastic mechanism includes a first rotating rod and a second rotating rod 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, and a second spring is connected between the first rotating rod and the arc-shaped clamping block.

[0010] Preferably, a groove is provided on the back side of the arc-shaped clamping block, the first rotating rod is rotatably installed in the groove, a protrusion 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 protrusion, the first rotating rod and the support plate are both rotatably installed with connecting shafts, the two ends of the first spring are fixedly connected with sleeve blocks, the two sleeve blocks are respectively rotatably installed on the two connecting shafts, and a first spring is respectively installed on both sides of the first rotating rod.

[0011] Preferably, teeth are provided on both sides of the support rod, the gear shaft is engaged with the teeth, the pushing motor is fixedly mounted on the turntable, the driving end of the turntable is fixedly connected to the first cam, the upper end of one of the gear shafts is fixedly connected to the second cam, and a linkage shaft is connected between the second cam and the first cam.

[0012] Preferably, one end of the linkage shaft is rotatably connected to the end of the connecting shaft away from the driving end of the push motor, and the other end of the linkage shaft is rotatably connected to the end of the second cam shaft away from the gear shaft. The lower end of the support plate slides on the surface of the table, and the length of the second cam shaft is the same as that of the first cam shaft.

[0013] Preferably, the lower part of one end of the turntable is rotatably mounted on the movable base via a rotating shaft, and the gear block is fixedly connected to a lower position of the other end of the turntable.

[0014] Preferably, the rotating mechanism also includes a driven gear and a driving gear. The driven gear is rotatably mounted on a movable base, and the movable base is meshed with the inner wall of the internal gear. The driving gear is meshed with the driven gear. A rotating motor is provided in the movable base, and the driving end of the rotating motor is fixedly connected to the driving gear.

[0015] Preferably, an arc shaft is fixedly mounted on the movable base, and the internal gear is rotatably mounted in the arc shaft.

[0016] Preferably, the lower end of the movable base is slidably installed in a slide groove, a slot 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 slots, and nuts are threadedly installed at both ends of the threaded shafts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. According to the welding position required, the structural support is placed at an angle that is convenient for welding. The arc-shaped blocks are offset against the edges 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. This positioning device can be adjusted to an angle that is convenient for welding.

[0019] 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

[0020] Figure 1 This is a schematic structural diagram of a welding positioning device for a structural support proposed by the present invention;

[0021] Figure 2 This is a partial side structural diagram of a welding positioning device for a structural support proposed by the present invention;

[0022] Figure 3 This is a partial bottom view structural diagram of a welding positioning device for a structural support proposed by the present invention;

[0023] Figure 4 This is a partial front structural diagram of a welding positioning device for a structural support proposed by the present invention;

[0024] Figure 5 It is a structural diagram of the support plate, arc-shaped clamping block, and elastic mechanism;

[0025] Figure 6 It is a structural diagram of the rotating mechanism and the pushing mechanism;

[0026] Figure 7 This is a schematic diagram of the partial planar structure of a welding positioning device for a structural support proposed by the present invention;

[0027] Figure 8 This is a schematic diagram of a partial top plan structure of a welding positioning device for a structural support proposed by the present invention.

[0028] In the figure: 1 table, 2 slide, 3 movable base, 4 support rod, 5 support plate, 6 arc-shaped 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 protrusion, 19 linkage shaft, 20 second protruding shaft, 21 driven gear, 22 driving gear, 23 gear block, 24 pushing motor, 25 first protruding shaft, 26 rotating shaft, 27 tooth groove, 28 slot, 29 threaded shaft, 30 nut. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figures 1-8 A welding positioning device for a structural support comprises a table top 1 and a plurality of movable bases 3 arranged on the table top 1. 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 clamping blocks 6 arranged up and down by an elastic mechanism. The arc-shaped clamping blocks 6 are used to clamp the structural support.

[0031] A pushing mechanism is provided on the turntable 8, and the pushing mechanism includes two gear shafts 10, and the support rod 4 is meshed and arranged between the two gear shafts 10, and one of the gear shafts 10 is rotated by the pushing motor 24;

[0032] The movable base 3 is provided with a rotating mechanism, which includes an internal gear 9. A gear block 23 is fixedly connected to the bottom of the turntable 8. The gear block 23 meshes with the inner wall of the internal gear 9. The rotating mechanism is used to drive the turntable 8 to rotate.

[0033] The elastic mechanism includes a first rotating rod 11 and a second rotating rod 12 that are rotatably connected together. The end of the second rotating rod 12 away from the first rotating rod 11 is rotatably connected to the support plate 5. The 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. When the multiple arc-shaped clamping blocks 6 are used to position and clamp the structural support, the first spring 13 and the second spring 14 are both elastic. Under the action of the elasticity, the arc-shaped clamping blocks 6 can be abutted against the side of the support. The multiple arc-shaped clamping blocks 6 cooperate with each other to effectively fix the support and then perform welding operations.

[0034] 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. The two ends of the second spring 14 are fixedly connected to the inner wall of the groove 17 and the protrusion 18, respectively. A connecting shaft 15 is rotatably mounted on the first rotating rod 11 and the support plate 5. The two ends of the first spring 13 are fixedly connected to a sleeve block 16. The two sleeve blocks 16 are rotatably mounted on the two connecting shafts 15, and a first spring 13 is mounted 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 via the protrusion 18. The first spring 13 is connected between the first rotating rod 11 and the support plate 5 via 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.

[0035] The support rod 4 is provided with tooth grooves 27 on both sides, and the gear shaft 10 is engaged 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 the first cam 25, and the upper end of one of the gear shafts 10 is fixedly connected to the second cam 20. A linkage shaft 19 is connected between the second cam 20 and the first cam 25. The push motor 24 can drive the first cam 25 to rotate through the driving end. As the first cam 25 rotates, the second cam 20 can be pulled through the linkage shaft 19. Under the pulling action of the linkage shaft 19, the second cam 20 will rotate, and then the second cam 20 drives the gear shaft 10 to rotate. As the gear shaft 10 rotates, the support rod 4 can be pushed to move, thereby changing the position of the support plate 5 and the arc-shaped block 6, and the arc-shaped block 6 can be moved close to the structural support.

[0036] 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 push motor 24, and the other end of the linkage shaft 19 is rotatably connected to the end of the second cam 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 cam shaft 20 is the same as the length of the first cam shaft 25. The two ends of the second cam shaft 20 are respectively connected to the linkage shaft 19 and the gear shaft 10, and the two ends of the first cam shaft 25 are respectively connected to the linkage shaft 19 and the push motor 24. Therefore, when the first cam shaft 25 deflects, the second cam shaft 20 can be pulled to deflect through the linkage shaft 19, and then the rotation of the driving end of the push motor 24 is transmitted to the gear shaft 10, causing the gear shaft 10 to rotate.

[0037] The turntable 8 is pivotally mounted on the movable base 3 via a rotating shaft 26 at one end, and the gear block 23 is fixedly connected to the other end of the turntable 8 at a position below the other end. The turntable 8 is pivotally mounted on the movable base 3 via the rotating shaft 26. The gear block 23 is positioned on the side of the turntable 8 away from the center of rotation. When the internal gear 9 rotates, the relative position of the gear block 23 is changed, thereby changing the orientation angle of the turntable 8.

[0038] The rotation mechanism also includes a driven gear 21 and a driving gear 22. The driven gear 21 is rotatably mounted on the mobile base 3, and the mobile 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 within the mobile 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, and the driving gear 22 meshes with the driven gear 21 to drive it to rotate. The rotation of the driven gear 21 drives the internal gear 9 to rotate, and then as the internal gear 9 rotates, the position of the gear block 23 is changed, thereby achieving the rotation effect of the turntable 8.

[0039] An arc-shaped shaft 7 is also fixedly mounted on the movable base 3 , and an internal gear 9 is rotatably mounted inside the arc-shaped shaft 7 , and the arc-shaped shaft 7 limits the position of the internal gear 9 .

[0040] The lower end of the mobile base 3 is slidably mounted within the chute 2. A slot 28 is formed on the inner wall of the chute 2. A plurality of threaded shafts 29 are inserted into the lower end of the mobile 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. The nuts 30 tighten the threaded shafts 29, thereby securing the position of the mobile base 3 on the chute 2. The position of the mobile base 3 is adjusted according to the shape of the structural support to facilitate its clamping and securing.

[0041] When positioning the structural support, the structural support is placed at an angle that is convenient for welding according to the position where welding is required. A corresponding number of movable bases 3 are used according to the angle of the structural support. Each arc-shaped block 6 is abutted against the edge of the structural support to achieve the function of limiting its position. Three points can determine a plane, so at least three movable bases 3 are 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 that is convenient for welding.

[0042] Each support plate 5 is connected to two arc-shaped blocks 6 through an elastic mechanism. The arc-shaped blocks 6 are in contact with 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 fit tightly with the surface of the steel pipe. The two arc-shaped blocks 6 are simultaneously attached to the same section of steel pipe, which is more stable and effective when supporting. The elastic force of the first spring 13 can be used to open 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 and the arc-shaped blocks 6 on both sides and the support plate 5 are all movably connected. The movable connection ensures that when clamping and positioning are performed, it can effectively adapt to different angle environments and better fit the unconventional structural shape of the structural support.

[0043] The support plate 5 is moved close to the structural support through the pushing mechanism, and the pushing motor 24 drives the first cam 25 to rotate through the driving end. The rotation of the first cam 25 drives the linkage shaft 19 to deflect. When the linkage shaft 19 moves, it pulls the second cam 20, so that the second cam 20 pulls one of the gear shafts 10 to rotate. As the gear shaft 10 rotates, the meshing tooth groove 27 can be pushed, so that the tooth groove 27 moves forward or backward, and the overall position of the support plate 5 is adjusted.

[0044] 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 is engaged with the driven gear 21. The driving gear 22 drives the driven gear 21 to rotate. The driven gear 21 is engaged with the inner wall of the internal gear 9. The internal gear 9 rotates with the rotation of the driven gear 21. When the internal gear 9 rotates on the arc shaft 7, it will drive the gear 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 arranged thereon, and finally realize the effect of changing the orientation of the support plate 5.

[0045] This device can arbitrarily increase or decrease the number of mobile bases 3 used according to positioning needs. The mobile base 3 is slidably installed in the slide groove 2. The threaded shaft 29 passes through the slot 28 and the lower end of the mobile base 3, and is fastened with a nut 30. Multiple mobile bases 3 can be fixedly installed in the slide groove 2, and the installation position can be adjusted.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection 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 a slide groove (2), the movable base (3) is slidably engaged in the slide groove (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 clamping blocks (6) arranged up and down by an elastic mechanism, and the arc-shaped clamping blocks (6) are used to clamp 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 meshed and 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) is meshed with the inner wall of the internal gear (9), and the rotating mechanism is used to drive the turntable (8) to rotate; The elastic mechanism comprises a first rotating rod (11) and a second rotating rod (12) which are rotatably connected together, an end of the second rotating rod (12) away from the first rotating rod (11) is rotatably connected to the support plate (5), an 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); 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), and the two ends of the second spring (14) are fixedly connected to the inner wall of the groove (17) and the protrusion (18), respectively. A connecting shaft (15) is rotatably mounted on the first rotating rod (11) and the support plate (5), and both ends of the first spring (13) are fixedly connected to a sleeve block (16), and the two sleeve blocks (16) are rotatably mounted on the two connecting shafts (15), respectively. A first spring (13) is installed on both sides of the first rotating rod (11); Tooth grooves (27) are provided on both sides of the support rod (4), the gear shaft (10) is meshed with the tooth grooves (27), the pushing motor (24) is fixedly mounted on the turntable (8), the driving end of the pushing motor (24) 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).

2. The welding positioning device for a structural support according to claim 1, characterized in that: One end of the linkage shaft (19) is rotatably connected to an end of the first convex shaft (25) 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).

3. The welding positioning device for 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 position below the other end of the turntable (8).

4. The welding positioning device for a structural support according to claim 3, 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 mobile base (3); the driving gear (22) is meshed with the driven gear (21); a rotating motor is provided in the mobile base (3); a driving end of the rotating motor is fixedly connected to the driving gear (22).

5. The welding positioning device for a structural support according to claim 4, characterized in that: An arc-shaped shaft (7) is also fixedly mounted on the movable base (3), and the internal gear (9) is rotatably mounted inside the arc-shaped shaft (7).

6. The welding positioning device for 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), and 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), and 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).

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