Auxiliary device for welding and assembling plate girder

Abstract

The utility model relates to the field of welding machining auxiliary devices, and provides a plate girder welding assembly auxiliary device. The plate girder welding and assembling auxiliary device comprises a base used for assembling a first plate girder; the first abutting assembly is arranged on the base and used for abutting against the first side of the second plate beam placed on the first plate beam; and the second abutting assembly is arranged on the base and is opposite to the first abutting assembly, and the second abutting assembly can move towards or away from the first abutting assembly and is used for abutting against the second side, opposite to the first side, of the second plate beam. Compared with an existing operation method, manual scribing is not needed, the two plate girders only need to be placed at the designated positions respectively during assembly, assembly can be completed, and the dimensional accuracy and efficiency of assembly are guaranteed. And in addition, positioned welding is not needed before welding, so that the operation time of positioned welding and polishing cleaning is saved.

Description

Technical Field

[0001] The utility model relates to the field of welding processing auxiliary devices, and provides an auxiliary device for plate girder welding and assembly. Background Technique

[0002] In the current field of rail vehicles, for example, for intelligent multiple units, there are usually problems such as cumbersome assembly of the driver's cab plate girders and bending deformation after welding. This is because there are a large number of skeleton plate girders in the driver's cab, and scribing needs to be carried out in advance during assembly. In addition, tack welding needs to be carried out in advance during welding. Since the plate girder is a thin aluminum alloy plate with a thickness of 4 mm, bending deformation will occur after welding, so repair treatment is required.

[0003] Specifically, there is a fillet weld between two plate girders. The maximum number of weld segments on each plate girder is 8, and a single vehicle has a total of 40 plate girders. The current operation method is usually as follows: Before the plate girders are assembled and welded, operators need to manually draw lines on the plate girders for positioning to avoid skew during assembly. The two plate girders need to be tack welded before welding, and then the tack welds are ground and then the overall welding is carried out. There are many repetitive operations in the operation method. Due to the thin thickness of the plate girders, the plate girders are bent and deformed after welding, and a large amount of repair work is required. Content of the Utility Model

[0004] An embodiment of the utility model provides an auxiliary device for plate girder welding and assembly, which is used to solve the defect of complex and cumbersome operation methods in related technologies, and achieve the effects of simplifying procedures, improving accuracy and efficiency.

[0005] The utility model provides an auxiliary device for plate girder welding and assembly, including: a base, on which a first plate girder is used for assembly; a first pressing component, which is arranged on the base and is used to press the first side of a second plate girder placed on the first plate girder; a second pressing component, which is arranged on the base and is opposite to the first pressing component, and the second pressing component can move towards or away from the first pressing component and is used to press the second side of the second plate girder opposite to the first side.

[0006] According to the auxiliary device for plate girder welding and assembly provided by the utility model, an assembly groove for assembling the first plate girder is formed on the base; wherein, the assembly groove extends along the length direction of the base, and along the width direction of the base, the first pressing component and the second pressing component are arranged on both sides of the assembly groove.

[0007] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the first pressing assembly includes: a positioning pressing block, the positioning pressing block is arranged on the base and a part of the positioning pressing block is suspended above the assembly groove; a first side pressing structure, the first side pressing structure is arranged on the base and a part of the first side pressing structure is suspended above the assembly groove; wherein, the positioning pressing block and the first side pressing structure are used for pressing the first side of the second plate girder.

[0008] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the plane where the bottom surface of the positioning pressing block is located is coplanar with the plane where the top of the assembly groove is located, so that the positioning pressing block can be used for pressing the top surface of the first plate girder.

[0009] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the first side pressing structure includes: a pair of support members, the pair of support members are arranged on the base, and along the length direction of the base, the positioning pressing block is located between the pair of support members; a first pressing plate strip, the first pressing plate strip is connected with the pair of support members and extends along the length direction of the base, and the first pressing plate strip is suspended above the assembly groove.

[0010] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the second pressing assembly includes: a slide rail, the slide rail is arranged on the base and extends along the width direction of the base; a second side pressing structure, the second side pressing structure is slidably installed on the slide rail, so that the second side pressing structure can move towards or away from the first pressing assembly.

[0011] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the number of the slide rails is set to be a pair, and the pair of slide rails are arranged at intervals along the length direction of the base.

[0012] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the second side pressing structure includes: a pair of supports, the pair of supports are slidably installed on the pair of slide rails; a second pressing plate strip, the second pressing plate strip is connected with the pair of supports and extends along the length direction of the base, and is used for pressing the second side of the second plate girder.

[0013] According to the auxiliary device for plate girder welding and assembly provided by the present utility model, the second side pressing structure further includes: a positioning locking member, the positioning locking member is arranged on at least one of the supports and is used for locking the support at a set position on the slide rail.

[0014] According to the auxiliary device for welding and assembling of plate girders provided by the present utility model, a pressing protrusion is formed on the second pressing plate strip; wherein, the pressing protrusion protrudes from the second pressing plate strip towards the top surface of the base, so that the pressing protrusion can be used to press the top surface of the first plate girder.

[0015] In the auxiliary device for welding and assembling of plate girders provided by the present utility model, when welding the first and second plate girders, first, the first plate girder is assembled on the base to keep stable, then the first pressing assembly is pressed on the first side of the second plate girder, and next, the second pressing assembly is adjusted to press on the second side of the second plate girder. At this time, the first and second plate girders have been firmly held in place for welding operation. Compared with the previous operation method, the present utility model does not require manual marking. During assembly, only the two plate girders need to be placed in the designated positions respectively to complete the assembly, ensuring the dimensional accuracy and efficiency of the assembly. In addition, no tack welding is required before welding, saving the operation time of tack welding and grinding and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is one of the three-dimensional views of the auxiliary device for welding and assembling of plate girders provided by the present utility model.

[0018] Figure 2 is the second three-dimensional view of the auxiliary device for welding and assembling of plate girders provided by the present utility model.

[0019] REFERENCE SIGNS:

[0020] 100: Auxiliary device for welding and assembling of plate girders; 102: Base; 104: First pressing assembly; 106: Second pressing assembly; 108: Assembly groove; 110: Positioning pressing block; 112: First side pressing structure; 114: Support member; 116: First pressing plate strip; 118: Slide rail; 120: Second side pressing structure; 122: Support; 124: Second pressing plate strip; 126: Positioning locking member; 128: Pressing protrusion; 200: First plate girder; 202: Second plate girder; L: Length direction; W: Width direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will further describe in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides an auxiliary device 100 for welding and assembling a plate girder. Generally speaking, the auxiliary device 100 for welding and assembling a plate girder includes a base 102, a first pressing component 104, and a second pressing component 106.

[0023] Specifically, during the use of the auxiliary device 100 for welding and assembling a plate girder, a first plate girder 200 to be welded can be assembled on the base 102. The first pressing component 104 can be arranged on the base 102 and is used to press the first side of a second plate girder 202 resting on the first plate girder 200 during use. Correspondingly, the second pressing component 106 can also be arranged on the base 102, and the second pressing component 106 can be arranged opposite to the first pressing component 104. Different from the first pressing component 104, the second pressing component 106 can be an adjustment component and is configured as a structure that can be adjusted and moved, that is, the second pressing component 106 can move towards or away from the first pressing component 104. When in use, the second pressing component 106 can be adjusted to move towards the first pressing component 104, and then press on the second side of the second plate girder 202 opposite to the first side, so that the first plate girder 200 and the second plate girder 202 can be kept in place for welding; after the operation is completed, the second pressing component 106 can be adjusted again to move away from the first pressing component 104, thereby removing the welded first plate girder 200 and second plate girder 202.

[0024] According to the above description, in the auxiliary device 100 for welding and assembling a plate girder provided by the present utility model, when welding the first and second plate girders, first, the first plate girder 200 is assembled on the base 102 to be stable, then the first pressing component 104 is pressed on the first side of the second plate girder 202, and then the second pressing component 106 is adjusted to press on the second side of the second plate girder 202. At this time, the first and second plate girders have been firmly held in place for welding operations. Compared with the previous operation methods, the present utility model does not require manual scribing. During assembly, only the two plate girders need to be placed in the specified positions respectively to complete the assembly, ensuring the dimensional accuracy and efficiency of the assembly. In addition, there is no need for tack welding before welding, saving the operation time for tack welding and grinding and cleaning.

[0025] Continue to refer to Figure 1 and Figure 2, in an embodiment of the present utility model, in order to achieve the effect of preventing deformation during the welding process, an assembly groove 108 for assembling the first plate beam 200 may be formed on the base 102. Specifically, the assembly groove 108 may extend along the length direction L of the base 102, and along the width direction W of the base 102, the first pressing assembly 104 and the second pressing assembly 106 may be arranged on both sides of the assembly groove 108, as Figure 1 and Figure 2 shown. During actual application, in order to prevent the plate beam from deforming after welding, the assembly groove 108 of the base 102 can be used to control the deformation of the first plate beam 200 in the width direction W, thereby realizing the operation without adjustment and repair.

[0026] In an embodiment of the present utility model, for the first pressing assembly 104, the first pressing assembly 104 may include a positioning pressing block 110 and a first side pressing structure 112. Specifically, the positioning pressing block 110 may be arranged on the base 102 and a part of the positioning pressing block 110 may be suspended above the assembly groove 108, as Figure 2 shown. Further, for the first side pressing structure 112, the first side pressing structure 112 may also be arranged on the base 102 and a part of the first side pressing structure 112 may also be suspended above the assembly groove 108. During actual application, as Figure 2 shown, the positioning pressing block 110 and the first side pressing structure 112 may be used to press the first side of the second plate beam 202. In one embodiment, the plane where the bottom surface of the positioning pressing block 110 is located may be coplanar with the plane where the top of the assembly groove 108 is located, so that the positioning pressing block 110 can be used to press the top surface of the first plate beam 200. In other words, during actual use, an operator can, for example, insert the first plate beam 200 into the assembly groove 108 along the length direction L of the base 102 or snap it into the assembly groove 108 along the width direction W. At this time, the bottom surface of the positioning pressing block 110 can abut against the top surface of the first plate beam 200, thereby realizing the limit and anti-deformation of the first plate beam 200. At this time, the parts of the positioning pressing block 110 and the first side pressing structure 112 that are suspended above the assembly groove 108 can be used to abut against the first side of the second plate beam 202, thereby effectively stabilizing the second plate beam 202, as Figure 2 shown.

[0027] In an alternative embodiment, the first side pressing structure 112 may include a pair of support members 114 and a first pressing plate strip 116. Specifically, the pair of support members 114 may be arranged on the base 102, and along the length direction L of the base 102, the positioning pressing block 110 may be located between the pair of support members 114, as Figure 2As shown. Further, the first pressing strip 116 can be connected to a pair of support members 114 and extend along the length direction L of the base 102. During specific applications, the first pressing strip 116 can be suspended above the assembly groove 108 for abutting against the first side of the second plate beam 202.

[0028] Return to Figure 1 , in the embodiment of the present utility model, for the second pressing assembly 106, it can include a slide rail 118 and a second side pressing structure 120. Specifically, the slide rail 118 can be arranged on the base 102 and extend along the width direction W of the base 102. The second side pressing structure 120 can be slidably mounted on the slide rail 118, so that the second side pressing structure 120 can move towards or away from the first pressing assembly 104. That is to say, during actual operation, the distance between the second side pressing structure 120 and the first side pressing structure 112 can be adjusted by adjusting the position of the second side pressing structure 120 on the slide rail 118. For example, when the distance between the second side pressing structure 120 and the first side pressing structure 112 is adjusted to be reduced to clamp the second plate beam 202, both the second plate beam 202 and the first plate beam 200 are kept in place, and corresponding welding operations and the like can be performed. When beam assembly is required or the welded beam is to be removed, the distance between the second side pressing structure 120 and the first side pressing structure 112 can be increased to perform related operations.

[0029] It should be noted here that the number of the above-mentioned slide rails 118 can be set according to actual situations. For example, in the Figure 1 shown embodiment, a pair of slide rails 118 can be arranged on the base 102, and this pair of slide rails 118 can be arranged at intervals along the length direction L of the base 102. Of course, in other alternative embodiments, other numbers of slide rails 118 can also be set to meet the needs of different scenarios, which can be determined according to actual situations, and the present utility model is not limited thereto.

[0030] As Figure 1 shown, taking the setting of a pair of slide rails 118 as an example, in this embodiment, the above-mentioned second side pressing structure 120 can include a pair of supports 122 and a second pressing strip 124. Specifically, a pair of supports 122 can be slidably mounted on a pair of slide rails 118 one by one, and the second pressing strip 124 can be connected to the pair of supports 122 and extend along the length direction L of the base 102. During actual applications, the second pressing strip 124 can be used to press against the second side of the second plate beam 202. That is to say, in the specific embodiment of the present utility model, during actual operation, the first pressing strip 116 and the second pressing strip 124 can be used to jointly press against the first side and the second side of the second plate beam 202 to firmly hold the second plate beam 202.

[0031] In an alternative embodiment, the second side pressing structure 120 may further include a positioning and locking member 126, which may be disposed on at least one support 122 and is used to lock the support 122 at a set position on the slide rail 118 during actual application.

[0032] Specifically, the number of the positioning and locking members 126 can be designed according to actual situations. For example, in one embodiment, a pair of slide rails 118 and a pair of supports 122 may be provided and only one positioning and locking member 126 may be provided; or as Figure 1 shown, a pair of slide rails 118 and a pair of supports 122 may be provided and a pair of positioning and locking members 126 may be correspondingly provided, that is, one support 122 is provided on each slide rail 118, and one positioning and locking member 126 is provided on each support 122, thereby forming a structure as Figure 1 shown. In other words, it is only necessary to satisfy that the positioning and locking member 126 can lock the support 122 on the slide rail 118.

[0033] Furthermore, for the function of the positioning and locking member 126, in one embodiment, it may be designed in the form of a locking screw as Figure 1 shown. During actual application, an operator may first adjust a pair of supports 122 of the second side pressing structure 120 to a suitable position on the slide rail 118, that is, it can enable the first pressing plate strip 116 and the second pressing plate strip 124 to jointly press the first side and the second side of the second plate beam 202 so as to stably hold the position of the second plate beam 202. Then, the operator can tighten the positioning and locking member 126, so that the support 122 can be stably held on the slide rail 118. After the welding operation is completed, the operator can loosen the positioning and locking member 126, so that the support 122 can slide smoothly on the slide rail 118 again, thereby removing the welded plate beam. Of course, it should be understood that the positioning and locking member 126 in the form of a locking screw is only one alternative embodiment of the present invention, and other suitable forms capable of locking the support 122 can be applied to the present invention without any limitation to the present invention.

[0034] In another alternative embodiment, in order to assist in stabilizing the first plate beam 200, a pressing protrusion 128 may be formed on the second pressing plate strip 124. Specifically, as Figure 1 shown, the pressing protrusion 128 may protrude from the second pressing plate strip 124 toward the top surface of the base 102, so that the pressing protrusion 128 can be used to press the top surface of the first plate beam 200, thereby assisting in stabilizing the first plate beam 200 and preventing deformation during welding.

[0035] During actual operation, the operator first places the first plate beam 200 into the assembly groove 108 of the base 102 to achieve deformation control of the first plate beam 200 in the width direction W of the base 102. Then, the second plate beam 202 is placed in position to be closely attached to the positioning pressing block 110 and the first pressing strip 116. Next, the support 122 is pushed along the slide rail 118 to make the second pressing strip 124 closely attached to the second plate beam 202, and at the same time, the positioning locking member 126 is tightened to achieve the rapid installation of the first plate beam 200 and the second plate beam 202 and the control of the post-welding deformation.

[0036] In summary, in the plate beam welding and assembly auxiliary device 100 provided by the embodiment of the present invention, compared with the previous operation method, the present invention does not require manual scribing. During assembly, only two plate beams need to be placed in the designated positions respectively to complete the assembly, ensuring the dimensional accuracy and efficiency of the assembly. And before welding, there is no need for positioning welding again, saving the operation time of positioning welding and grinding and cleaning. In addition, in order to prevent the post-welding deformation of the plate beam, an anti-deformation amount of 2.5 mm is preset on the first pressing assembly 104 and the second pressing assembly 106 respectively. The assembly groove 108 of the base 102 controls the deformation of the first plate beam 200 in the width direction W. Through this multi-dimensional deformation control method, the overall post-welding deformation amount of the plate beam is less than 1 mm, realizing the operation without adjustment and repair. The device of the present invention is easy to use, has a simple and fast structure, and can improve the operation efficiency by more than 80%.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary device (100) for welding and assembling a plate girder, characterized in that, Comprising: A base (102) for assembling a first plate beam (200) thereon; A first pressing assembly (104) disposed on the base (102) and for pressing a first side of a second plate beam (202) resting on the first plate beam (200); A second pressing assembly (106) disposed on the base (102) and opposite to the first pressing assembly (104), the second pressing assembly (106) being capable of moving towards or away from the first pressing assembly (104) and for pressing a second side of the second plate beam (202) opposite to the first side.

2. The auxiliary device for welding and assembling of plate girders according to claim 1, characterized in that, An assembly groove (108) for assembling the first plate beam (200) is formed on the base (102); Wherein, the assembly groove (108) extends along the length direction (L) of the base (102), and along the width direction (W) of the base (102), the first pressing assembly (104) and the second pressing assembly (106) are disposed on both sides of the assembly groove (108).

3. The auxiliary device for plate girder welding and assembly according to claim 2, wherein, The first pressing assembly (104) includes: A positioning pressing block (110) disposed on the base (102) and a part of the positioning pressing block (110) is suspended above the assembly groove (108); A first side pressing structure (112) disposed on the base (102) and a part of the first side pressing structure (112) is suspended above the assembly groove (108); Wherein, the positioning pressing block (110) and the first side pressing structure (112) are for pressing the first side of the second plate beam (202).

4. The auxiliary device for plate girder welding and assembly according to claim 3, characterized in that, The plane of the bottom surface of the positioning pressing block (110) is coplanar with the plane of the top of the assembly groove (108) so that the positioning pressing block (110) can be used to press the top surface of the first plate beam (200).

5. The auxiliary device for welding and assembling of plate girders according to claim 3, wherein, The first side pressing structure (112) includes: A pair of support members (114) disposed on the base (102), and along the length direction (L) of the base (102), the positioning pressing block (110) is located between the pair of support members (114); A first pressing plate strip (116) connected to the pair of support members (114) and extending along the length direction (L) of the base (102), the first pressing plate strip (116) being suspended above the assembly groove (108).

6. The auxiliary device for plate girder welding and assembly according to any one of claims 1 to 5, characterized in that, The second pressing assembly (106) includes: A slide rail (118) disposed on the base (102) and extending along the width direction (W) of the base (102); A second side pressing structure (120) slidably mounted on the slide rail (118) so that the second side pressing structure (120) can move towards or away from the first pressing assembly (104).

7. The auxiliary device for plate girder welding and assembly according to claim 6, characterized in that The number of the slide rails (118) is set to be a pair, and the pair of slide rails (118) are arranged at intervals along the length direction (L) of the base (102).

8. The auxiliary device for plate girder welding and assembly according to claim 7, characterized in that The second side pressing structure (120) includes: A pair of supports (122), and the pair of supports (122) are slidably mounted on the pair of slide rails (118); A second pressing strip (124), the second pressing strip (124) is connected to the pair of supports (122) and extends along the length direction (L) of the base (102), and is used for pressing the second side of the second beam (202).

9. The auxiliary device for welding and assembling of plate girders according to claim 8, wherein, The second side pressing structure (120) further includes: A positioning and locking member (126), the positioning and locking member (126) is arranged on at least one of the supports (122) and is used for locking the support (122) at a set position on the slide rail (118).

10. The auxiliary device for welding and assembling of plate girders according to claim 8, characterized in that, A pressing protrusion (128) is formed on the second pressing strip (124); Wherein, the pressing protrusion (128) protrudes from the second pressing strip (124) towards the top surface of the base (102), so that the pressing protrusion (128) can be used for pressing the top surface of the first beam (200).

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