Workpiece turnover device for welding

Abstract

The utility model relates to the technical field of welding, in particular to a workpiece turnover device for welding, which comprises a base, an arc-shaped sliding groove is fixedly arranged at the top of the base, a semicircular gear ring is slidably arranged in the arc-shaped sliding groove through a sliding device, and the semicircular gear ring is in clearance fit with the arc-shaped sliding groove. A clamping device is fixedly arranged in the semicircular gear ring, and a driving device for driving the semicircular gear ring to rotate is arranged on the portion, outside the arc-shaped sliding groove, of the base. A travelling crane is not used for turning over the workpiece, potential safety hazards are eradicated, the safety production coefficient is greatly improved, the safety of an operator is guaranteed, the labor intensity of the operator is reduced, meanwhile, collision generated when the workpiece is turned over is reduced, welding deformation is prevented and controlled, and the appearance quality of the workpiece is improved. And great help is provided for enterprises to realize modernized and automatic production.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, and particularly relates to a workpiece turning device for welding. Background Art

[0002] Welding technology is a thermal processing method most widely used in modern industry. The essence of the welding process is an extremely complex metallurgical process. Due to the influence of many factors such as material, temperature, and environment, the residual stress and deformation after welding become factors seriously affecting the quality of welded workpieces. Especially when welding long box-shaped workpieces, the influence is more prominent. Therefore, in actual work, welding operators have adopted a method combining multi-layer and multi-pass welding and symmetric welding through repeated practice, and achieved relatively satisfactory results. However, corresponding problems also arise. This welding process method requires the workpiece to be turned multiple times to be effectively realized. The prior art usually uses a traveling crane to turn the workpiece. It has certain impacts on the appearance quality of the workpiece and the service life of the traveling crane. Especially, there are huge potential safety hazards for the operators turning the workpiece, which is also extremely unfavorable for the enterprise to achieve modernization and automated production. Therefore, there is an urgent need for a workpiece turning device for welding. Content of the Utility Model

[0003] The purpose of the utility model is to provide a workpiece turning device for welding.

[0004] A workpiece turning device for welding includes a base. A circular arc chute is fixedly arranged at the top of the base. A semi-circular gear ring is slidably arranged in the circular arc chute through a sliding device. The semi-circular gear ring and the circular arc chute are in clearance fit. A clamping device is fixedly arranged inside the semi-circular gear ring. A driving device for driving the semi-circular gear ring to rotate is arranged on the base outside the circular arc chute.

[0005] Further, the sliding device includes an arc-shaped slideway. Arc-shaped slideways are arranged on the front and rear sides of the semi-circular gear ring. A plurality of sliding shafts are rotatably arranged on the front and rear inner sides of the circular arc chute. The sliding block is slidably arranged in the arc-shaped slideway.

[0006] Further, the clamping device includes a semi-circular mounting ring. The semi-circular mounting ring is fixedly arranged inside the semi-circular gear ring. Three clamping cylinders are evenly arranged inside the semi-circular mounting ring.

[0007] Further, the driving device includes a driving motor. The driving motor is fixedly arranged on the base outside the circular arc chute. A driving gear is fixedly arranged at the output end of the driving motor. An opening groove is arranged on the side wall of the circular arc chute. The driving gear penetrates through the opening groove and is meshed with the semi-circular gear ring.

[0008] Further, a connecting support is fixedly arranged between the base and the circular arc chute.

[0009] In summary, the utility model has the following beneficial effects:

[0010] The utility model does not use a traveling crane to flip the workpiece, eliminating potential safety hazards, greatly improving the safety production coefficient, ensuring the safety of the operator, reducing the labor intensity of the operator, and at the same time reducing the collision during workpiece flipping, preventing the generation of welding deformation, improving the appearance quality of the workpiece, and providing great help for the enterprise to achieve modern and automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0012] Figure 1 is a perspective view of a workpiece flipping device for welding of the present utility model;

[0013] Figure 2 is a side view of a workpiece flipping device for welding of the present utility model;

[0014] Figure 3 is a schematic structural view of the present utility model in use state.

[0015] In the figure: 1 base, 2 arc-shaped chute, 3 semi-circular gear ring, 4 arc-shaped slideway, 5 sliding shaft, 6 driving device, 61 driving motor, 62 driving gear, 63 opening groove, 7 clamping device, 71 semi-circular mounting ring, 72 clamping cylinder, 8 connecting support, 9 long box-shaped workpiece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] The following further describes the present utility model with reference to the attached Figure 1-2 :

[0018] A workpiece flipping device for welding includes a base 1. An arc-shaped chute 2 is fixedly arranged on the top of the base 1. A connecting support 8 is fixedly arranged between the base 1 and the arc-shaped chute 2. A semi-circular gear ring 3 is slidably arranged in the arc-shaped chute 2 through a sliding device. The semi-circular gear ring 3 is in clearance fit with the arc-shaped chute 2. A clamping device 7 is fixedly arranged inside the semi-circular gear ring 3. A driving device 6 for driving the semi-circular gear ring 3 to rotate is arranged on the base 1 outside the arc-shaped chute 2.

[0019] In this embodiment, the connecting support 8 can make the fixed connection between the base 1 and the arc-shaped chute 2 more firm. The clamping device 7 is used to clamp and fix the long box-shaped workpiece 9, and the driving device 6 is used to drive the semi-circular gear ring 3 to drive the clamping device 7 to slide and rotate along the arc-shaped chute 2 in cooperation with the sliding device, so as to turn over the long box-shaped workpiece 9. Without using a hoist to turn over the workpiece, potential safety hazards are eliminated, the safety of the operator is ensured, at the same time, the collision during the turning of the workpiece is reduced, the appearance quality of the workpiece is improved, which provides great help for the enterprise to realize modern and automated production.

[0020] The sliding device includes an arc-shaped slideway 4. Arc-shaped slideways 4 are provided on the front and rear sides of the semi-circular gear ring 3, and a plurality of sliding shafts 5 are rotatably arranged on the front and rear inner sides of the arc-shaped chute 2. The sliding shafts 5 are slidably arranged in the arc-shaped slideways 4.

[0021] In this embodiment, when the driving device 6 drives the semi-circular gear ring 3 to rotate, the semi-circular gear ring 3 slides along the arc-shaped chute 2 through the cooperation of two arc-shaped slideways 4 and a plurality of sliding shafts 5. The arc-shaped slideways 4 and the sliding shafts 5 are used to determine the running track of the semi-circular gear ring 3 and prevent the semi-circular gear ring 3 from disengaging from the arc-shaped chute 2.

[0022] The clamping device 7 includes a semi-circular mounting ring 71. The semi-circular mounting ring 71 is fixedly arranged inside the semi-circular gear ring 3, and three clamping cylinders 72 are evenly arranged inside the semi-circular mounting ring 71.

[0023] In this embodiment, the long box-shaped workpiece 9 is placed inside the semi-circular mounting ring 71, and the output ends of the three clamping cylinders 72 extend. The three clamping cylinders 72 cooperate with each other to clamp the three sides of the long box-shaped workpiece 9. Preferably, the clamping cylinder 72 is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0024] The driving device 6 includes a driving motor 61. The driving motor 61 is fixedly arranged on the base 1 outside the arc-shaped chute 2. The output end of the driving motor 61 is fixedly provided with a driving gear 62. An opening groove 63 is provided on the side wall of the arc-shaped chute 2. The driving gear 62 passes through the opening groove 63 and is meshed with the semi-circular gear ring 3.

[0025] In this embodiment, the output end of the driving motor 61 drives the driving gear 62 to rotate. The driving gear 62 passes through the opening groove 63 to drive the semi-circular gear ring 3 to slide along the arc-shaped chute 2 through the cooperation of two arc-shaped slideways 4 and a plurality of sliding shafts 5. The semi-circular gear ring 3 drives the clamping device 7 to slide and rotate along the arc-shaped chute 2 to turn over the long box-shaped workpiece 9. Preferably, the output end of the driving motor 61 is connected to the driving gear 62 through a gearbox.

[0026] As Figure 3As shown, multiple of the present utility models need to cooperate together to clamp the long box workpiece 9 and turn it over. Preferably, two of the present utility models are used to cooperate together to clamp the long box workpiece 9 and turn it over. The specific operation steps are as follows:

[0027] First step, place the two present utility models according to the actual length dimension of the long box workpiece 9, ensure the levelness and coaxiality of the two present utility models, and make the opening of the semi-circular mounting ring 71 face upward;

[0028] Second step, adjust the clamping cylinders 72 of the two present utility models in place according to the actual width and height of the long box workpiece 9 to ensure that the long box workpiece 9 can enter between the three clamping cylinders 72;

[0029] Third step, hoist and place the long box workpiece 9 into the two semi-circular mounting rings 71, adjust the clamping cylinders 72 to firmly clamp the long box workpiece 9 in the two present utility models, and ensure that the levelness and coaxiality are consistent;

[0030] Fourth step, according to the actual length of the long box workpiece 9, place one or more support jack pads between the two present utility models to support the long box workpiece 9 to ensure that the long box workpiece 9 will not sag and deform due to heat during the welding process;

[0031] Fifth step, perform the first root pass welding. After welding the first root pass weld, immediately lower the support jack pads, and simultaneously start the two drive motors 61, which drive the semi-circular gear ring 3 through the drive gears 62 to slide along the arc-shaped chute 2 in cooperation with the two arc-shaped slides 4 and multiple sliding shafts 5, drive the long box workpiece to turn over, expose the weld positions symmetrical to the first weld, turn off the drive motors 61, raise the support jack pads, and perform the second root pass welding;

[0032] Sixth step, after the second root pass weld is welded, the third root pass weld on the same plane can be welded;

[0033] Seventh step, after the third root pass welding is completed, immediately lower the support jack pads, simultaneously start the two drive motors 61, the two present utility models are reversely turned over to a suitable position, raise the support jack pads, and weld the welds symmetrical to the third weld;

[0034] Eighth step, after cleaning the welds, weld by combining the multi-layer and multi-pass welding method with the sectional method. After each weld is completed, repeat the above turning process for symmetrical welding. If a long weld is welded at one time, after immediately turning over the workpiece, it is necessary to weld in the opposite starting direction of the weld on the weld at the symmetrical position.

[0035] In summary, the present utility model is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications on the premise of not departing from the spirit and scope of the present utility model. The protection scope of the present utility model shall be subject to the claims of the present utility model.

[0036] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0037] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

Claims

1. A workpiece turning device for welding, characterized in that, It includes a base (1), on the top of the base (1), an arc-shaped chute (2) is fixedly arranged, a semi-circular gear ring (3) is slidably arranged in the arc-shaped chute (2) through a sliding device, the semi-circular gear ring (3) and the arc-shaped chute (2) are in clearance fit, a clamping device (7) is fixedly arranged inside the semi-circular gear ring (3), and a driving device (6) for driving the semi-circular gear ring (3) to rotate is arranged on the base (1) outside the arc-shaped chute (2).

2. The workpiece turning device for welding according to claim 1, characterized in that, The sliding device includes an arc-shaped slideway (4), arc-shaped slideways (4) are arranged on the front and rear sides of the semi-circular gear ring (3), a plurality of sliding shafts (5) are rotatably arranged on the front and rear inner sides of the arc-shaped chute (2), and the sliding shafts (5) are slidably arranged in the arc-shaped slideways (4).

3. The workpiece turning device for welding according to claim 2, characterized in that, The clamping device (7) includes a semi-circular mounting ring (71), the semi-circular mounting ring (71) is fixedly arranged inside the semi-circular gear ring (3), and three clamping cylinders (72) are evenly arranged inside the semi-circular mounting ring (71).

4. A workpiece turning device for welding according to claim 1, characterized in that, The driving device (6) includes a driving motor (61), the driving motor (61) is fixedly arranged on the base (1) outside the arc-shaped chute (2), a driving gear (62) is fixedly arranged at the output end of the driving motor (61), an opening slot (63) is arranged on the side wall of the arc-shaped chute (2), and the driving gear (62) penetrates through the opening slot (63) and is meshed and connected with the semi-circular gear ring (3).

5. A workpiece turning device for welding according to claim 1, characterized in that, A connecting support (8) is fixedly arranged on the base (1) and the arc-shaped chute (2).

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