Positioning device for preventing welding deformation of workpiece

Abstract

The utility model provides a workpiece anti-welding deformation positioning device which comprises a three-dimensional platform, and two first positioning blocks, two second positioning blocks, two first telescopic air cylinders, an anti-deformation pressing plate, two positioning assemblies and two pressing assemblies are arranged on the three-dimensional platform. The reversible deformation pressing plate is arranged on the three-dimensional platform in a protruding mode and located between the two pressing assemblies. Aiming at the deformation trend that the two ends of a workpiece are bent in the welding process, the middle of the workpiece A is lifted through the anti-deformation pressing plate, the two ends of the workpiece A are pressed through the pressing assembly, the convex design with the high middle and the two low ends is formed, welding deformation is overcome, the distortion problem of the workpiece in the welding process can be effectively controlled, and welding quality is improved. The quality state of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a positioning device for preventing welding deformation of workpieces. Background Art

[0002] Welding positioning devices are widely used in current machining. They not only need to position various parts of the workpiece but also reduce the deformation of the workpiece during welding.

[0003] Currently, during the process of welding end plates to both ends of a long workpiece, there is a certain amount of deformation. This is mainly because during the welding process, the end faces and end surfaces of the long workpiece are stressed, causing the long workpiece to have a distorted deformation with both ends bent and the middle concave, as well as a twist deformation from head to tail. This leads to problems such as scrapping and subsequent shaping, which are not conducive to workpiece production in terms of timeliness and labor costs. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a positioning device for preventing welding deformation of workpieces, which is used to solve the problem that long workpieces are prone to deformation during welding in the prior art.

[0005] To achieve the above object and other related objects, the present utility model provides a positioning device for preventing welding deformation of workpieces, including a three-dimensional platform, and the three-dimensional platform is provided with:

[0006] A first positioning block and a second positioning block, which are respectively arranged along the length direction and width direction of workpiece A to position workpiece A.

[0007] First telescopic cylinders, which are arranged at intervals along the length direction of workpiece A and are located on the opposite side of the first positioning block. The first telescopic cylinders cooperate with the first positioning block to clamp workpiece A.

[0008] Two positioning components, which are respectively used to position workpiece B and workpiece C at both ends of workpiece A.

[0009] Two pressing components, which are respectively located at both ends of workpiece A and press workpiece A and workpiece B / workpiece C together in the vertical direction.

[0010] An anti-deformation pressing plate, which protrudes from the three-dimensional platform and is located between the two first telescopic cylinder pressing components.

[0011] In an embodiment of the present utility model, the positioning component includes a support seat, a lifting cylinder, and a second telescopic cylinder. The support seat is fixed on the three-dimensional platform. The lifting cylinder is installed on the support seat in the vertical direction. The second telescopic cylinder is connected to the output end of the lifting cylinder, and the second telescopic cylinder expands and contracts along the length direction of workpiece A.

[0012] In an embodiment of the present utility model, the workpiece B and the workpiece C are stepped, and a stepped portion adapted to the workpiece B / workpiece C is connected to the output end of the second telescopic cylinder.

[0013] In an embodiment of the present utility model, the anti-deformation pressing plate is in the shape of a thin plate.

[0014] In an embodiment of the present utility model, the first telescopic cylinder expands and contracts along the width direction of the workpiece A.

[0015] In an embodiment of the present utility model, the second positioning block is in an "L" shape.

[0016] In an embodiment of the present utility model, the workpiece A is in a long strip shape, and the cross-section of the workpiece A is in a "U" shape.

[0017] In an embodiment of the present utility model, a workpiece D is further included, and the workpiece D is arranged above the middle of the workpiece A.

[0018] In an embodiment of the present utility model, a plurality of positioning holes are uniformly arranged on the surface of the three-dimensional platform, and the first positioning block, the second positioning block, the first telescopic cylinder, the anti-deformation pressing plate, the positioning assembly and the pressing assembly are detachably installed on the three-dimensional platform through fixing pins.

[0019] As described above, a positioning device for preventing welding deformation of a workpiece according to the present utility model has the following beneficial effects:

[0020] 1. Aiming at the deformation tendency of the workpiece to bend at both ends during the welding process, in the present utility model, the middle part of the workpiece A is lifted by the anti-deformation pressing plate and the two ends of the workpiece A are pressed tightly by the pressing assembly, forming a convex design with a high middle and low ends, overcoming welding deformation, and effectively controlling the problem of twisting deformation of the workpiece during the welding process, improving the quality state of the workpiece.

[0021] 2. The positioning assembly of the present utility model can not only position the workpiece B / workpiece C at both ends of the workpiece A, but after the second telescopic cylinder extends, its output end can resist the workpiece B / workpiece C at the end, thereby overcoming the extrusion force on the end face of the workpiece A during the welding process, thereby reducing or offsetting the deformation. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a positioning device for preventing welding deformation of a workpiece disclosed in an embodiment of the present utility model.

[0023] Figure 2 It is a top view schematic diagram of a positioning device for preventing welding deformation of a workpiece disclosed in an embodiment of the present utility model.

[0024] Figure 3The structural schematic diagram of the positioning component disclosed in the embodiment of the present utility model.

[0025] Figure 4 The structural schematic diagram after installing a workpiece on a positioning device for preventing welding deformation of a workpiece disclosed in the embodiment of the present utility model.

[0026] Figure 5 The structural schematic diagram of the workpiece disclosed in the embodiment of the present utility model.

[0027] Element number description

[0028] 1. Three-dimensional platform; 11. Positioning hole; 2. First positioning block; 3. Second positioning block; 4. First telescopic cylinder; 5. Anti-deformation pressing plate; 6. Positioning component; 61. Support seat; 62. Lifting cylinder; 63. Second telescopic cylinder; 64. Step portion; 7. Pressing component; 8. Fixed pin; 100. Workpiece A; 110. Workpiece B; 120. Workpiece C; 130. Workpiece D. Specific implementation manner

[0029] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0030] Refer to the attached drawings of the specification Figure 5 , the workpieces to be welded include workpiece A 100, workpiece B 110, workpiece C 120 and workpiece D 130. Workpiece A is in a long strip shape, and the cross-section of workpiece A is in a "U" shape. Workpiece B and workpiece C are to be welded to both ends of workpiece A, and workpiece D is to be welded to the middle of workpiece A.

[0031] To overcome the problem that workpieces are prone to deformation during welding, please refer to Figures 1 to 4 , the present utility model provides a positioning device for preventing welding deformation of workpieces, including a three-dimensional platform 1. Two first positioning blocks 2, two second positioning blocks 3, two first telescopic cylinders 4, an anti-deformation pressing plate 5, two positioning components 6 and two pressing components 7 are arranged on the three-dimensional platform 1.

[0032] Among them, the first positioning block 2 and the first telescopic cylinder 4 are both arranged along the length direction of the workpiece A. The first positioning block 2 is located on one side of the workpiece A, and the first telescopic cylinder 4 is located on the other side of the workpiece A. The first telescopic cylinder 4 cooperates with the first positioning block 2 to clamp the workpiece A. The second positioning block 3 is arranged along the width direction of the workpiece A to position the workpiece A, so that the position of the workpiece A can be defined on the three-dimensional platform 1. The two positioning components 6 respectively position the workpiece B and the workpiece C, and the two pressing components 7 are respectively located at both ends of the workpiece A and press the workpiece A and the workpiece B / workpiece C together in the vertical direction. It should be noted that in the design of the present utility model, an anti-deformation pressing plate 5 is arranged on the three-dimensional platform 1, and the anti-deformation pressing plate 5 is located at the middle position between the two pressing components 7. Aiming at the deformation trend of the workpiece with both ends bent during the welding process, the present utility model raises the middle part of the workpiece A through the anti-deformation pressing plate 5 and presses both ends of the workpiece A through the pressing components 7 to form a convex design with a high middle and low ends, reducing welding deformation, effectively controlling the problem of torsional deformation of the workpiece during the welding process, and improving the quality state of the workpiece; in addition, when welding the workpiece D, the anti-deformation pressing plate 5 can also give a reaction force to reduce the compressive deformation of the workpiece A.

[0033] Specifically, the anti-deformation pressing plate 5 is in the shape of a thin plate.

[0034] Further, the first telescopic cylinder 4 expands and contracts along the width direction of the workpiece A, so as to cooperate with the first positioning block 2 to clamp the workpiece A.

[0035] Further, the second positioning block 3 is in an "L" shape, and the distance between the two "L"-shaped second positioning blocks 3 is the width of the workpiece A, so as to fix the position of the workpiece A.

[0036] Further, referring to the attached drawings of the specification Figure 3 , the positioning component 6 includes a support seat 61, a lifting cylinder 62 and a second telescopic cylinder 63. The support seat 61 is fixed on the three-dimensional platform 1. The lifting cylinder 62 is installed on the support seat 61 in the vertical direction. The second telescopic cylinder 63 is connected to the output end of the lifting cylinder 62, and the second telescopic cylinder 63 expands and contracts along the length direction of the workpiece A. Since the cross-section of the workpiece A is in a "U" shape, the lifting cylinder 62 can control the second telescopic cylinder 63 to descend into the cavity of the workpiece A. After the second telescopic cylinder 63 extends, its output end can abut against the workpiece B or the workpiece C at both ends, so as to overcome the extrusion force on the end face of the workpiece A during the welding process, thereby reducing or offsetting the deformation.

[0037] Further, the workpiece B and the workpiece C are in a stepped shape, and a stepped portion 64 that cooperates with the workpiece B / workpiece C is connected to the output end of the second telescopic cylinder 63.

[0038] Furthermore, a plurality of positioning holes 11 are uniformly arranged on the surface of the three-dimensional platform 1, and the first positioning block 2, the second positioning block 3, the first telescopic cylinder 4, the anti-deformation pressing plate 5, the positioning assembly 6, and the pressing assembly 7 are detachably mounted on the three-dimensional platform 1 through fixing pins 8.

[0039] Working principle: 1. First, place the workpiece A on the anti-deformation pressing plate, and position the workpiece A through the first positioning block and the second positioning block. Then, the first telescopic cylinder extends to clamp the workpiece A. 2. Adjust the positioning assembly in place, and then place the workpiece B and the workpiece C at both ends of the workpiece A respectively, and use the pressing assemblies at both ends to press the workpiece B and the workpiece A tightly, and press the workpiece C and the workpiece A tightly to form a radian with a high middle and low ends. 3. Place the workpiece D at the corresponding position on the workpiece A, and then perform welding.

[0040] In summary, aiming at the deformation tendency of the workpiece with both ends bent during the welding process, the middle part of the workpiece A is lifted by the anti-deformation pressing plate and the two ends of the workpiece A are tightly pressed by the pressing assembly in the present invention, forming a convex design with a high middle and low ends, overcoming the welding deformation, and effectively controlling the problem of the workpiece being distorted during the welding process, improving the quality state of the workpiece. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0041] Among them, the terms such as "upper", "lower", "left", "right", "front", "rear", "middle", and "one" cited in this specification are only for the convenience of clear narration, rather than used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.

[0042] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. All equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A positioning device for preventing workpiece reverse welding deformation, characterized in that, Comprising a three-dimensional platform, on which are provided: A first positioning block and a second positioning block, arranged along the length direction and width direction of workpiece A respectively for positioning workpiece A; First telescopic cylinders, arranged at intervals along the length direction of workpiece A and located on the opposite side of the first positioning block, the first telescopic cylinders cooperating with the first positioning block to clamp workpiece A; Two positioning components, respectively used for positioning workpiece B and workpiece C at both ends of workpiece A; Two pressing components, respectively located at both ends of workpiece A, pressing workpiece A and workpiece B / workpiece C together in the vertical direction; An anti-deformation pressing plate, protruding from the three-dimensional platform and located between the two first telescopic cylinders and pressing components.

2. The positioning device for anti-welding deformation of a workpiece according to claim 1, characterized in that The positioning component includes a support seat, a lifting cylinder and a second telescopic cylinder, the support seat is fixed on the three-dimensional platform, the lifting cylinder is installed on the support seat in the vertical direction, the second telescopic cylinder is connected to the output end of the lifting cylinder, and the second telescopic cylinder expands and contracts along the length direction of workpiece A.

3. The positioning device for preventing workpiece reverse welding deformation according to claim 2, characterized in that Workpiece B and workpiece C are stepped, and the output end of the second telescopic cylinder is connected with a stepped portion cooperating with workpiece B / workpiece C.

4. A positioning device for preventing workpiece reverse welding deformation according to claim 1, characterized in that, The anti-deformation pressing plate is in the shape of a thin plate.

5. The positioning device for preventing workpiece reverse welding deformation according to claim 1, characterized in that, The first telescopic cylinder expands and contracts along the width direction of workpiece A.

6. The positioning device for preventing welding deformation of a workpiece according to claim 1, characterized in that, The second positioning block is in an "L" shape.

7. A positioning device for preventing workpiece reverse welding deformation according to any one of claims 1 to 6, characterized in that, Workpiece A is strip-shaped, and the cross-section of workpiece A is in a "U" shape.

8. A positioning device for preventing workpiece reverse welding deformation according to claim 7, characterized in that, It further includes workpiece D, which is arranged above the middle of workpiece A.

9. A positioning device for preventing workpiece reverse welding deformation according to any one of claims 1 to 8, characterized in that, The surface of the three-dimensional platform is evenly provided with a plurality of positioning holes, and the first positioning block, the second positioning block, the first telescopic cylinders, the anti-deformation pressing plate, the positioning components and the pressing components are detachably installed on the three-dimensional platform through fixing pins.

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