Welding deformation correction tool

Abstract

The utility model relates to the technical field of welding deformation correction, and discloses a welding deformation correction tool which comprises a machine frame, a fixing unit, a clamping unit and a pressing unit, the fixing unit and the clamping unit are both connected to the machine frame, and the fixing unit and the clamping unit are used for fixing a workpiece to the machine frame and enabling one end of the workpiece to be suspended; the downward pressing unit is connected to the top of the rack and located at the suspended end of the workpiece. A lifting module matched with the downward pressing unit in position is arranged on the rack; the lifting module is positioned below the workpiece; the workpiece is fixed to the rack through the fixing unit and the clamping unit, one end of the workpiece is suspended, the part, deformed due to welding, of the workpiece is corrected to be horizontal through cooperation of the downward pressing unit and the lifting module, deformation correction of downward bending and deformation correction of upward bending can be achieved, universality is high, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of welding deformation correction, in particular to a welding deformation correction tool. Background Art

[0002] Welding distortion is the geometric change in the weld joint and surrounding base metal caused by uneven heat distribution and shrinkage during cooling during the welding process. Various air flotation welded parts always experience some deformation after welding. This deformation is generally divided into downward bending and upward bending. Due to the construction of medium and thin plates and the small machining allowance, the deformation must be strictly controlled, so deformation correction is necessary.

[0003] CN221185322U discloses an air-floating table welding fixture, comprising a frame and an air-floating table, the air-floating table comprising a base plate, a first plate body, and a connecting piece, the bottom of the base plate being provided with a plurality of spaced-apart notches, the frame being provided with a plurality of protrusions matching the notches, the protrusions being provided with a plurality of first support blocks for supporting the first plate body, both ends of the frame being provided with a first positioning unit for pressing the connecting piece against the welding portion, a second positioning unit for pressing the first plate body against the top of the base plate and the connecting piece, and a plurality of third positioning units for simultaneously pressing the first plate body and the base plate being provided on both sides of the first workbench.

[0004] The above technical solution can fix the workpiece while ensuring the workpiece flatness requirements during welding. It can also be superimposed on robot welding to improve welding accuracy and welding efficiency. Whether it is manual welding or machine welding, ensuring the flatness of the workpiece ensures the quality of the workpiece welding. However, after welding is completed, it is unavoidable that the workpiece will deform due to the uneven distribution of welding heat and shrinkage during the cooling process. Therefore, a tooling that can correct deformation after welding is needed. Utility Model Content

[0005] The purpose of this application is to solve the above-mentioned problems and provide a welding deformation correction tool. This correction tool adopts a fixing unit and a clamping unit to fix the workpiece on the frame, and makes one end of the workpiece suspended in the air. Through the cooperation of the pressing unit and the lifting module, the part of the workpiece deformed due to welding is corrected to the horizontal state, and it can meet the deformation correction of downward bending and upward bending. It has strong versatility and simple operation.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A welding deformation correction tool comprises a frame, a fixing unit, a clamping unit, and a pressing unit. The fixing unit and the clamping unit are both connected to the frame. The fixing unit and the clamping unit are used to fix a workpiece on the frame and leave one end of the workpiece suspended in the air.

[0008] The pressing unit is connected to the top of the frame and is located at the end where the workpiece is suspended; the frame is provided with a lifting module that matches the position of the pressing unit; the lifting module is located below the workpiece;

[0009] When the pressing unit moves downward to correct the workpiece, the lifting module can move downward according to the pressing amount of the pressing unit until the workpiece is horizontal;

[0010] When the lifting module moves upward to correct the workpiece, the lifting module can push the workpiece so that the top of the workpiece fits into the pressing unit.

[0011] Preferably, the frame is provided with a symmetrically arranged first guide rail, the pressing unit is slidably connected to the first guide rail, there are at least two lifting modules, and they are arranged along the length direction of the workpiece, and the pressing unit can be adjusted along the length direction of the first guide rail so that the pressing unit corresponds to the lifting modules at different positions up and down.

[0012] Preferably, the downward pressure unit includes a symmetrically arranged first rod body and a second rod body, a first plate body, a first adjusting rod, and a first pressure block. The first rod body and the second rod body are respectively slidably connected to the symmetrically arranged first guide rail. One end of the first plate body is hinged to the first rod body, and the other end of the first plate body is detachably connected to the second rod body. The first adjusting rod is connected to the first plate body, and the first pressure block is connected to the bottom of the first rod body. The first rod body is used to drive the first pressure block to rise and fall.

[0013] Preferably, the clamping unit includes a pressing module and a lifting mechanism. The frame is provided with symmetrically arranged second guide rails. The pressing module is slidably connected to the second guide rails. The lifting mechanism is connected to the frame and corresponds to the pressing module up and down.

[0014] Preferably, the downward pressure module includes a symmetrically arranged third rod and fourth rod, a second plate, a second adjusting rod, and a second pressure block. The third rod and the fourth rod are respectively slidably connected to the symmetrically arranged second guide rails. One end of the second plate is hinged to the third rod, and the other end of the second plate is detachably connected to the fourth rod; the second adjusting rod is connected to the second plate, the second pressure block is connected to the bottom of the second adjusting rod, and the second adjusting rod is used to drive the second pressure block to rise and fall.

[0015] Preferably, the fixing unit includes at least two vertical clamps, a support frame, and multiple support blocks. The vertical clamps are connected to the frame, the support frame is connected to the frame, the support blocks are connected to the support frame, and are located below the workpiece. The power output ends of the support blocks and the vertical clamps are arranged correspondingly up and down.

[0016] Preferably, the frame is further provided with a third guide rail and a fourth guide rail, the third guide rail is located on one side of the frame, the vertical clamp is slidably connected to the third guide rail, the fourth guide rail is located below the workpiece, and the support frame is slidably connected to the fourth guide rail.

[0017] Preferably, a plurality of limit blocks are provided on the frame, and the plurality of limit blocks are respectively arranged at one end and one side of the frame, and the limit blocks are used to limit one end and one side of the workpiece.

[0018] Preferably, it also includes at least two pointer observation units, which are located at both ends of the frame. The pointer observation unit includes a connecting frame slidably connected to the frame, a pointer hinged on the connecting frame, and a scale is provided on the connecting frame. One end of the pointer contacts the bottom of the workpiece.

[0019] Preferably, the lifting module includes a plurality of second supporting cylinders connected to the frame, and the second supporting cylinders are arranged along the width direction of the workpiece.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The utility model adopts a fixing unit and a clamping unit to fix the workpiece on the frame, and makes one end of the workpiece suspended in the air. Through the cooperation of the pressing unit and the lifting module, the part of the workpiece deformed due to welding is corrected to a horizontal state, and can meet the requirements of deformation correction of downward bending and deformation correction of upward bending. It has strong versatility and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the welding deformation correction tool of the present application;

[0023] Figure 2 It is a front view of the welding deformation correction tool of the present application with a workpiece;

[0024] Figure 3 yes Figure 1 Side view of

[0025] Figure 4 yes Figure 2 A top view of

[0026] Figure 5 yes Figure 4 AA cross-sectional view of the workpiece;

[0027] Figure 6 yes Figure 4 BB cross-sectional view of the workpiece;

[0028] Figure 7 yes Figure 4 CC cross-sectional view of the workpiece.

[0029] The reference numerals are as follows:

[0030] Frame 1; fixing unit 2; clamping unit 3; pressing unit 4; pointer observation unit 5; lifting module 11; first guide rail 12; third guide rail 14; fourth guide rail 15; limit block 16; vertical clamp 21; support frame 22; support block 23; pressing module 31; lifting mechanism 32; first rod 41; second rod 42; first plate 43; first adjusting rod 44; first pressure block 45; connecting frame 51; pointer 52; third rod 311; fourth rod 312; second plate 313; second adjusting rod 314; second pressure block 315; scale 511. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] Example 1

[0033] refer to Figures 1 to 7 A welding deformation correction tool includes a frame 1, a fixing unit 2, a clamping unit 3, and a pressing unit 4. The fixing unit 2 and the clamping unit 3 are both connected to the frame 1. The fixing unit 2 and the clamping unit 3 are used to fix a workpiece on the frame 1 and leave one end of the workpiece suspended in the air.

[0034] The pressing unit 4 is connected to the top of the frame 1 and is located at the end where the workpiece is suspended. The frame 1 is provided with a lifting module 11 that matches the position of the pressing unit 4. The lifting module 11 is located below the workpiece.

[0035] When the pressing unit 4 moves downward to correct the workpiece, the lifting module 11 can move downward according to the pressing amount of the pressing unit 4 until the workpiece is horizontal;

[0036] When the lifting module 11 moves upward to correct the workpiece, the lifting module 11 can push the workpiece so that the top of the workpiece fits into the pressing unit 4 .

[0037] Under this design, the operator places the workpiece on the frame 1 and fixes it through the fixing unit 2 and the clamping unit 3. Specifically, the fixing unit 2 fixes the middle of the workpiece, and the clamping unit 3 fixes one end of the workpiece, so that the end deformed by welding is in a suspended state; if the deformation is an upward bend, the operator adjusts the down-pressing unit 4 to press down the raised part of the workpiece. At this time, the lifting module 11 can move downward according to the downward pressure of the down-pressing unit 4 until the workpiece is horizontal; if the deformation is a downward bend, the operator first adjusts the down-pressing unit 4 to the preset position, and then moves upward through the lifting module 11 and pushes the bent part of the workpiece to make the top of the workpiece fit with the down-pressing unit 4, and correct the workpiece to a horizontal state.

[0038] In this way, both downward bending and upward bending deformation correction can be satisfied, with strong versatility and simple operation.

[0039] Preferably, the frame 1 is provided with a symmetrically arranged first guide rail 12, the pressing unit 4 is slidably connected to the first guide rail 12, there are at least two lifting modules 11, and they are arranged along the length direction of the workpiece, and the pressing unit 4 can be adjusted along the length direction of the first guide rail 12 so that the pressing unit 4 corresponds to the lifting modules 11 at different positions up and down.

[0040] Specifically, the pressing unit 4 adjusts its position through the first guide rail 12 so that the pressing unit 4 can be matched with different lifting modules 11 respectively. In a preferred embodiment, the pressing unit 4 is first matched with the lifting module 11 close to the middle of the workpiece to correct the workpiece once, and then the position is adjusted in the direction away from the middle and corrected again. In actual use, by setting at least two lifting modules 11, the accuracy of correction can be improved.

[0041] Furthermore, the pressing unit 4 includes a symmetrically arranged first rod body 41 and a second rod body 42, a first plate body 43, a first adjusting rod 44, and a first pressure block 45. The first rod body 41 and the second rod body 42 are respectively slidably connected to the symmetrically arranged first guide rail 12. One end of the first plate body 43 is hinged to the first rod body 41, and the other end of the first plate body 43 is detachably connected to the second rod body 42. The first adjusting rod 44 is connected to the first plate body 43, and the first pressure block 45 is connected to the bottom of the first rod body 41. The first rod body 41 is used to drive the first pressure block 45 to rise and fall.

[0042] In actual application, in order to facilitate the picking and placing of the workpiece, the operator first swings the first plate 43 to open the upper area between the first rod 41 and the second rod 42. Then, after the operator places the workpiece on the frame 1, the operator swings the first plate 43 to connect with the second rod 42, and then drives the first pressure block 45 to rise and fall through the first adjusting rod 44 according to the deformation of the workpiece. At the same time, it can also be adjusted to a preset position through the first adjusting rod 44, and then the workpiece is corrected upward through the lifting module 11.

[0043] In this embodiment, the clamping unit 3 includes a pressing module 31 and a lifting mechanism 32. The frame 1 is provided with symmetrically arranged second guide rails 13. The pressing module 31 is slidably connected to the second guide rails 13. The lifting mechanism 32 is connected to the frame 1 and corresponds to the pressing module 31 in a vertical manner. The clamping unit 3 clamps the workpiece by simultaneously acting on the pressing module 31 and the lifting mechanism 32. The operator can also adjust the position of the pressing module 31 using the second guide rails 13.

[0044] Furthermore, the downward pressing module 31 includes a symmetrically arranged third rod body 311 and fourth rod body 312, a second plate body 313, a second adjusting rod 314, and a second pressure block 315. The third rod body 311 and the fourth rod body 312 are respectively slidably connected to the symmetrically arranged second guide rail 13. One end of the second plate body 313 is hinged to the third rod body 311, and the other end of the second plate body 313 is detachably connected to the fourth rod body 312; the second adjusting rod 314 is connected to the second plate body 313, and the second pressure block 315 is connected to the bottom of the second adjusting rod 314. The second adjusting rod 314 is used to drive the second pressure block 315 to rise and fall.

[0045] Specifically, the working mode of the pressing module 31 and the pressing unit 4 is the same, so the working mode of the pressing module 31 is not described in detail in this embodiment.

[0046] Preferably, the fixing unit 2 includes at least two vertical clamps 21, a support frame 22, and multiple support blocks 23. The vertical clamps 21 are connected to the frame 1, the support frame 22 is connected to the frame 1, and the support blocks 23 are connected to the support frame 22 and are located below the workpiece. The power output ends of the support blocks 23 and the vertical clamps 21 are arranged correspondingly up and down.

[0047] Because the ends of the workpiece are most likely to deform during welding, when in use, after placing the workpiece on the frame 1, the vertical clamp 21 is driven to press the workpiece down on the support block 23 and fix the middle of the workpiece to ensure that the fixed area is horizontal.

[0048] Furthermore, the frame 1 is provided with a third guide rail 14 and a fourth guide rail 15. The third guide rail 14 is located on one side of the frame 1, and the vertical clamp 21 is slidably connected to the third guide rail 14. The fourth guide rail 15 is located below the workpiece, and the support frame 22 is slidably connected to the fourth guide rail 15.

[0049] The operator can also adjust the position of the vertical clamp 21 through the third guide rail 14, and adjust the vertical clamp 21 to a position more in the middle of the workpiece, where the deformation is minimal. After adjusting the position of the vertical clamp 21, the operator also needs to adjust the position of the support frame 22 so that the power output end of the vertical clamp 21 and the upper and lower support blocks 23 correspond to each other, so as to fix the workpiece in a clamping manner.

[0050] Preferably, the frame 1 is provided with a plurality of limit blocks 16 , which are respectively arranged at one end and one side of the frame 1 , and the limit blocks 16 are used to limit one end and one side of the workpiece.

[0051] In this embodiment, at least two pointer observation units 5 are also included. The pointer observation units 5 are located at both ends of the frame 1. The pointer observation units 5 include a connecting frame 51 slidably connected to the frame 1, and a pointer 52 hinged on the connecting frame 51. A scale 511 is provided on the connecting frame 51, and one end of the pointer 52 contacts the bottom of the workpiece.

[0052] In order to observe the state of the workpiece more intuitively, a pointer observation unit 5 is added. In a preferred embodiment, the pointer observation unit 5 is located at both ends of the workpiece. Specifically, according to the position of the pointer 52 at the reference position of the workpiece, the position of other parts is adjusted so that the pointer 52 at other positions is in the same state as the pointer 52 at the reference position.

[0053] Preferably, the lifting module 11 includes multiple second support cylinders connected to the frame 1 and arranged along the width of the workpiece. Specifically, these are spring-lift type support cylinders, with the piston rod initially raised. When a workpiece is placed on the piston rod, the workpiece's weight causes it to descend to a specific distance. At this point, air pressure is applied to the cylinder body, securing the piston rod.

[0054] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A welding deformation correction tool, characterized in that: The machine comprises a frame, a fixing unit, a clamping unit, and a pressing unit. The fixing unit and the clamping unit are both connected to the frame. The fixing unit and the clamping unit are used to fix a workpiece on the frame and to make one end of the workpiece hang in the air. The pressing unit is connected to the top of the frame and is located at the end of the workpiece that is suspended in the air; a lifting module is provided on the frame that matches the position of the pressing unit; the lifting module is located below the workpiece; When the pressing unit moves downward to correct the workpiece, the lifting module can move downward according to the pressing amount of the pressing unit until the workpiece is horizontal; When the lifting module moves upward to correct the workpiece, the lifting module can push the workpiece so that the top of the workpiece fits into the pressing unit.

2. A welding deformation correction tool according to claim 1, characterized in that: The frame is provided with a symmetrically arranged first guide rail, the pressing unit is slidably connected to the first guide rail, there are at least two lifting modules, and they are arranged along the length direction of the workpiece, and the pressing unit can be adjusted along the length direction of the first guide rail so that the pressing unit corresponds to the lifting modules at different positions up and down.

3. A welding deformation correction tool according to claim 2, characterized in that: The downward pressing unit includes a symmetrically arranged first rod body and a second rod body, a first plate body, a first adjusting rod, and a first pressure block. The first rod body and the second rod body are respectively slidably connected to the symmetrically arranged first guide rails. One end of the first plate body is hinged to the first rod body, and the other end of the first plate body is detachably connected to the second rod body. The first adjusting rod is connected to the first plate body, and the first pressure block is connected to the bottom of the first rod body. The first rod body is used to drive the first pressure block to rise and fall.

4. The welding deformation correction tool according to claim 1, characterized in that: The clamping unit includes a pressing module and a lifting mechanism. The frame is provided with symmetrically arranged second guide rails. The pressing module is slidably connected to the second guide rails. The lifting mechanism is connected to the frame and corresponds to the pressing module up and down.

5. The welding deformation correction tool according to claim 4, characterized in that: The downward pressure module includes a symmetrically arranged third rod and fourth rod, a second plate, a second adjusting rod, and a second pressure block. The third rod and fourth rod are respectively slidably connected to the symmetrically arranged second guide rails. One end of the second plate is hinged to the third rod, and the other end of the second plate is detachably connected to the fourth rod. The second adjusting rod is connected to the second plate, and the second pressure block is connected to the bottom of the second adjusting rod. The second adjusting rod is used to drive the second pressure block to rise and fall.

6. The welding deformation correction tool according to claim 1, characterized in that: The fixing unit includes at least two vertical clamps, a support frame, and multiple support blocks. The vertical clamps are connected to the frame, the support frame is connected to the frame, and the support blocks are connected to the support frame and are located below the workpiece. The support blocks and the power output ends of the vertical clamps are arranged correspondingly up and down.

7. The welding deformation correction tool according to claim 6, characterized in that: The frame is also provided with a third guide rail and a fourth guide rail, the third guide rail is located on one side of the frame, the vertical clamp is slidably connected to the third guide rail, the fourth guide rail is located below the workpiece, and the support frame is slidably connected to the fourth guide rail.

8. The welding deformation correction tool according to claim 1, characterized in that: The frame is provided with a plurality of limit blocks, which are respectively arranged at one end and one side of the frame, and the limit blocks are used to limit one end and one side of the workpiece.

9. The welding deformation correction tool according to claim 1, characterized in that: It also includes at least two pointer observation units, which are located at both ends of the frame. The pointer observation unit includes a connecting frame slidably connected to the frame, a pointer hinged on the connecting frame, and a scale is provided on the connecting frame. One end of the pointer contacts the bottom of the workpiece.

10. The welding deformation correction tool according to claim 1, characterized in that: The lifting module includes a plurality of second supporting cylinders connected to the frame, and the second supporting cylinders are arranged along the width direction of the workpiece.

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