Buckling assembly welding tool

Abstract

The utility model relates to a buckling assembly welding tool, which is characterized in that a back shore bracket comprises a top beam and supporting upright posts on the two sides of the top beam, and further comprises back shore mechanisms arranged on the top beam and the supporting upright posts on the two sides, and the back shore bracket is arranged in a lower U-shaped metal plate box body; the upper U-shaped metal plate box body is supported by the top supporting mechanism mounted on the top beam and is adjusted to a proper height; the two to-be-welded box bodies are positioned through the jacking mechanisms installed on the stand columns on the two sides, and the welding seam of the upper box body and the lower box body is leveled; the buckling assembly welding tool comprises an upper frame and a lower frame which are arranged in the length direction of the packaging box, the upper frame and the lower frame are provided with restraining faces corresponding to the outer contours of the upper U-shaped metal plate box body and the lower U-shaped metal plate box body, a tensioning structure is further arranged between the upper frame and the lower frame, and the lower U-shaped metal plate box body is arranged in the lower frame. And finally, the upper frame is inversely buckled on the upper box body, and constraint force from outside to inside is provided for the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of support welding spare, especially relates to a buckling assembly welding tool. BACKGROUND

[0002] A large sheet metal packaging box with a certain length, the two ends of the length direction of the box are opened, and the upper and lower two U-shaped sheet metal box bodies are buckled and welded together; because the welding seam length is long when the upper and lower two U-shaped sheet metal box bodies are buckled and welded, the welding stress is large, and the sheet metal wallboard is prone to large wave deformation and torsional deformation under the action of the welding stress, which affects the overall strength of the box body and makes it difficult to ensure the geometric size of the box body after welding; the deformation caused by welding needs to be corrected by a machine or a firework for a long time to level the box body wallboard, which is high in time cost and low in overall welding efficiency of the packaging box. SUMMARY

[0003] The utility model aims at providing a buckling assembly welding tool to solve the problems of low welding quality and low welding efficiency of the prior art large sheet metal packaging box.

[0004] To achieve the above-mentioned purpose, the utility model also provides a buckling assembly welding tool, which comprises a plurality of top support supports arranged in the same direction, the top support support comprises a top beam and support columns arranged on both sides of the top beam, a first top support mechanism is adjustably installed on the top beam in the up-down direction, a second top support mechanism is adjustably installed on the two support columns in the left-right direction, and the top support support has a support surface in contact with the lower wall surface of the inner side of the lower U-shaped sheet metal box body; the first top support mechanism has a top support plane for providing support for the upper U-shaped sheet metal box body buckled on the first top support support; the second top support mechanism is further provided with a pressing plane for pressing and flattening the butt joint of the upper and lower U-shaped sheet metal box bodies; the buckling assembly welding tool further comprises upper and lower frames with a certain length; the lower frame has a constraint surface in contact with the outer side wall surface of the lower U-shaped sheet metal box body and a supporting surface supporting the bottom surface of the U-shaped sheet metal box body, and the upper frame has a constraint surface in contact with the outer side wall surface of the upper U-shaped sheet metal box body; the upper and lower frames are further provided with a tensioning structure, and there is a gap between the upper and lower frames at the position corresponding to the welding seam after tensioning.

[0005] Further, the first top support mechanism comprises a guide push-pull rod penetrating the top beam and a top support plate installed on the top of the guide push-pull rod, and the upper surface of the top support plate constitutes the above-mentioned top support plane.

[0006] Further, the guide push-pull rod is a screw rod, the top beam is fixed with a top adjusting nut matched with the guide push-pull rod on both sides, and the top support plate is rotationally matched with the top of the screw rod.

[0007] Further, the guide push-pull rod has two, which are respectively penetrated into the two ends of the cross beam close to the support columns and are symmetrically arranged on both sides of the top support plate.

[0008] Furthermore, a top support plate support is provided at the bottom of the top support plate corresponding to the position of the guide push rod, and the top support plate support is provided with a light hole for the guide push rod to be inserted.

[0009] Furthermore, the second support mechanism includes a second guide push-pull rod mounted on the support column and a top block installed on the outer end of the second guide push-pull rod facing the support bracket. The top block has a plane flush with the side wall of the U-shaped sheet metal box, which constitutes the aforementioned pressure-bearing plane.

[0010] Furthermore, the second guide push-pull rod is a screw rod, and the left and right sides of the support column are fixed with side adjusting nuts that cooperate with the second guide push-pull rod, and the top block is rotatably engaged with the top of the screw rod.

[0011] Furthermore, a top block bracket is provided on the support column to support the top block, and the surface of the top block bracket that supports the top block is a horizontal plane.

[0012] Furthermore, bottom beams are provided at the bottom of the two supporting columns. The two ends of the bottom beams are connected to the bottom of the two supporting columns respectively. The lower surface of the bottom beams is in contact with the inner bottom surface of the lower U-shaped sheet metal box to form the aforementioned support surface.

[0013] Furthermore, both ends of the upper and lower frames are provided with connecting plates extending along the direction of the packaging box body. The connecting plates at both ends of the upper and lower frames are symmetrically provided with mounting through holes, and tensioning screws are inserted into the symmetrical mounting through holes. The tensioning screws constitute the aforementioned tensioning structure.

[0014] Beneficial effects:

[0015] This utility model innovatively provides a snap-fit ​​welding fixture, including a set of upper and lower frames that snap together and are adapted to the overall length of the packaging box, and multiple top support brackets arranged along the length of the packaging box on the lower U-shaped sheet metal box. The lower frame has a constraint surface that fits against the outer contour of the lower U-shaped sheet metal box, and the upper frame has a constraint surface that fits against the outer contour of the upper U-shaped sheet metal box. A tensioning structure is also provided between the upper and lower frames to press the upper frame downward. The top support brackets include a top beam and support columns on both sides of the top beam, with the bottom of the support columns directly contacting the bottom side of the lower U-shaped sheet metal box. A first top support mechanism is movably installed on the top beam along the vertical guide, and a second top support mechanism is movably installed on the two columns along the horizontal guide. The upper U-shaped sheet metal box is supported by the top support plane at the upper end of the first top support mechanism, and the buttressing plane of the second top support mechanism presses and levels the joint between the upper and lower U-shaped sheet metal boxes. The three top supports are located at different positions. The support mechanism positions the upper and lower U-shaped sheet metal boxes. When using the snap-fit ​​welding fixture provided by this utility model, the lower U-shaped sheet metal box is first placed inside the lower frame. Then, multiple top support brackets are arranged along the length of the U-shaped sheet metal box on the lower U-shaped sheet metal box. At this time, the upper U-shaped sheet metal box is inverted onto the top support brackets. The top support brackets position the upper and lower U-shaped sheet metal boxes. The first top support mechanism is adjusted to adjust the upper U-shaped sheet metal box to a suitable height. The second top support mechanism on the two supporting columns is used to level the weld seam between the two U-shaped sheet metal boxes. After positioning the two U-shaped sheet metal boxes, the upper bracket is inverted and placed on the upper U-shaped sheet metal box. The upper and lower frames are then tightened and aligned by the tensioning structure. The top support bracket provides support from the inside out to the two U-shaped sheet metal boxes to be welded, while the upper and lower frames provide support from the outside in to fix the two U-shaped sheet metal boxes to be welded. After the above preparations are completed, the welding operation can begin. The snap-fit ​​welding fixture provided by this utility model has the function of positioning the two U-shaped sheet metal boxes and aligning and fixing them after positioning. It solves the problem of poor positioning accuracy when welding large sheet metal packaging boxes in the prior art, as well as the problems of box deformation, difficulty in ensuring the geometric dimensions of the packaging box, and low welding efficiency caused by the inability to fix the box parts to be welded. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall assembly structure of the fastening welding fixture;

[0017] Figure 2 This is a side view of the overall assembly structure of the fastening welding fixture;

[0018] Figure 3 A structural diagram showing the structure after the lower U-shaped sheet metal box is installed on the lower frame;

[0019] Figure 4This is a structural diagram showing how the top support bracket is placed on the lower U-shaped sheet metal box.

[0020] Figure 5 This is a structural diagram illustrating the use of a top support bracket to position the upper and lower U-shaped sheet metal boxes.

[0021] Figure 6 This is a structural diagram showing the installation of a frame on the upper part of two positioned U-shaped sheet metal boxes for overall fixation.

[0022] In the diagram: 1. Top beam; 2. Support column; 3. First top support mechanism; 31. Guide push-pull rod; 32. Top support plate; 33. Top support plate support; 34. Top adjusting nut; 4. Second top support mechanism; 41. Second guide push-pull rod; 42. Top block; 43. Top block bracket; 44. Side adjusting nut; 5. Upper U-shaped sheet metal box; 6. Lower U-shaped sheet metal box; 7. Bottom beam; 8. Upper frame; 9. Lower frame; 10. Tensioning structure; 11. Tensioning screw; 12. Fastening nut. Detailed Implementation

[0023] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0024] The principle and concept of this utility model is to design a snap-fit ​​welding fixture to assist in the welding of large sheet metal packaging boxes. This snap-fit ​​welding fixture includes multiple top support brackets, each including a top beam and supporting columns on both sides of the top beam. A top support mechanism is provided on the top beam, which can be adjusted and fixed in the vertical direction to support the upper U-shaped sheet metal box body that is inverted on the top support brackets, and can also adjust the height of the upper U-shaped sheet metal box body. The supporting columns are equipped with left-right top support mechanisms, which, after the height of the upper U-shaped sheet metal box body is adjusted to a suitable position, push the side wall of the upper U-shaped sheet metal box body to align with and fix it to the side wall of the lower U-shaped sheet metal box body, ensuring weld quality and ensuring that the geometric dimensions of the finished box body meet the requirements after welding. The snap-fit ​​welding fixture also includes upper and lower frames of a certain length, each frame having a corresponding support mechanism. The outer walls of the upper and lower U-shaped sheet metal boxes are fitted together, and a tensioning structure is also provided between the upper and lower frames. After the lower U-shaped sheet metal box is placed inside the lower frame, multiple top support brackets are arranged inside the lower U-shaped sheet metal box along the extension direction of the packaging box. Then, the upper U-shaped sheet metal box is inverted and placed on the top support brackets. The height of the upper U-shaped sheet metal box and the alignment of the side walls of the upper and lower U-shaped sheet metal boxes are adjusted by the top support mechanism on the top support brackets. Finally, the upper frame is inverted and placed on top of the upper U-shaped sheet metal box, and the tensioning structure is used to tighten the upper and lower frames to fix the U-shaped sheet metal box from the outside to the inside. The top support brackets fix the U-shaped sheet metal box from the inside to the outside, ensuring that the sheet metal parts will not deform due to welding stress during the welding process. This solves the problems of difficult welding quality and low welding efficiency in the welding process of large sheet metal packaging boxes in the prior art.

[0025] Based on the above principles and concepts, this utility model provides a snap-fit ​​welding fixture and its various embodiments for further explanation.

[0026] In a basic embodiment, such as Figures 1-6In the provided embodiment, the top support bracket includes a top beam 1 and support columns 2 connected to both sides of the top beam 1. The bottom of the support columns 2 has a support surface that contacts the lower wall of the lower U-shaped sheet metal box 6. A first top support mechanism 3 is adjustablely installed on the top beam 1 in the vertical direction, and a second top support mechanism 4 is adjustablely installed on the support columns 2 in the horizontal direction. The first top support mechanism 3 has a top support plane that fits against the inner bottom wall of the upper U-shaped sheet metal box 5, and the extension length of the first top support mechanism 3 is adjusted to control the... The upper U-shaped sheet metal box 5 has a height, and the second top support mechanism 4 has a pressing plane facing the upper and lower U-shaped sheet metal boxes. The pressing plane pushes the side walls of the upper and lower U-shaped sheet metal boxes to be flush. The top support mechanism set on the top support bracket realizes the positioning of the upper U-shaped sheet metal box 5, ensuring weld alignment and improving welding quality; the fastening welding fixture also includes upper and lower frames with a certain length. The lower frame 9 has a constraint surface that fits against the outer side wall of the lower U-shaped sheet metal box 6, and the upper frame 8 has The upper U-shaped sheet metal box 5 has a constraint surface that fits against the outer wall of the upper frame. A tensioning structure 10 is also provided between the upper and lower frames. After the tensioning structure 10 tensions the upper and lower frames, a gap is left at the corresponding position of the upper and lower frames and the welding seam to facilitate welding operations. When using the snap-fit ​​welding fixture provided by this utility model, the lower frame 9 is set with its opening facing upwards, the lower U-shaped sheet metal box 6 is placed inside the lower frame 9, and multiple top support brackets are arranged along the length of the packaging box inside the lower U-shaped sheet metal box 6. Then, the upper U-shaped sheet metal box 6 is inverted onto the top support bracket. After adjusting the upper U-shaped sheet metal box 6 to a suitable height and leveling the side wall weld seams of the upper and lower U-shaped sheet metal boxes, the upper frame 8 is fastened onto the upper U-shaped sheet metal box 5. The upper and lower frames are tightened by the tensioning structure 10 to fix the upper and lower U-shaped sheet metal boxes from the outside to the inside. The upper and lower frames set in this way can provide fixed support for the box to be welded during welding, preventing the box wall panels from deforming due to welding stress during the welding process.

[0027] Based on the above embodiments, in one embodiment, the first support mechanism 3 includes two guide push-pull rods disposed on both sides of the top beam. The ends of the guide push-pull rods directly contact the inner bottom wall of the upper U-shaped sheet metal box 5. The height of the upper U-shaped sheet metal box 5 is controlled by controlling the extension and retraction length of the guide push-pull rods. In a more preferred embodiment, such as... Figures 1-6 In the provided embodiment, the first support mechanism 3 includes a guide push-pull rod 31 mounted on the top beam 1 and a support plate 32 installed on the top of the guide push-pull rod 31. The upper surface of the support plate 32 serves as the support plane to drive the upper U-shaped sheet metal box 5 to move up and down. The upper surface of the support plate 32 serves as the support plane, which increases the contact area between the first support mechanism 3 and the upper U-shaped sheet metal box 5, making the entire propulsion process more stable and reducing the pressure between the upper U-shaped sheet metal box 5 and the support plate 32.

[0028] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, the guide push-pull rod 31 is a screw, and top adjusting nuts 34 that cooperate with the screw are fixedly installed on both the upper and lower sides of the top beam 1. The extension and positioning of the guide push-pull rod 31 are controlled by the screw rotation, and the structure is simple and reliable. In another embodiment, a small hydraulic cylinder can be set at the upper end of the top beam 1 as the first supporting mechanism. The height of the upper U-shaped sheet metal box 5 can be controlled by controlling the extension and retraction of the hydraulic rod. Using a hydraulic cylinder as the supporting mechanism can provide a larger and more stable propulsive force.

[0029] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, there are two guide push-pull rods 31, which are respectively set on both sides of the top beam 1, and the two guide push-pull rods 31 are symmetrically set at both ends of the bottom of the top support plate 32. By controlling the height of the two guide push-pull rods 31 at the same time, the lifting and lowering of the upper U-shaped sheet metal box 5 can be controlled. In this way, the guide push-pull rods 31 symmetrically set on both sides of the top support plate 32 can drive the top support plate 32 to move more stably. In another embodiment, there is one guide push-pull rod and it is set in the middle position of the top beam 1 and the top support plate 32 to achieve smooth advancement of the top support plate 32.

[0030] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, a top support plate bracket 33 is also installed at the bottom of the top support plate 32 corresponding to the guide push rod 31. The top support plate bracket 33 is provided with a light hole, and the guide push rod 31 is inserted into the light hole and drives the top support plate 32 to move up and down by rotating it in and out. In another embodiment, the bottom of the top support plate 32 is not provided with a top support plate bracket 33, and a ball head structure is provided at the top of the guide push rod 31. The top support plate 32 is driven to move up and down by the guide push rod 31 with the ball head structure.

[0031] Based on the above embodiments, in one embodiment, the second support mechanism 4 includes two second guide push-pull rods 41, which respectively abut against the upper and lower U-shaped sheet metal boxes and control the positioning of the side walls of the two sheet metal boxes; in a more preferred embodiment, such as Figures 1-6In the provided embodiment, the second supporting mechanism 4 includes a second guide push-pull rod 41 mounted on the support column 2 and a top block 42 installed on the second guide push-pull rod 41 facing one end of the upper and lower U-shaped sheet metal box. The top block 42 has a pressing plane that abuts against the inner side wall of the upper and lower U-shaped sheet metal box. By controlling the pushing distance of the top block 42, the alignment degree of the side walls of the upper and lower U-shaped sheet metal box is controlled. In this way, the side walls of the upper and lower U-shaped sheet metal box are pushed and leveled by the stop block, which increases the contact area between the second supporting mechanism 4 and the sheet metal box wall panel, improves the stability of the leveling work, and reduces the pressure to better protect the surface structure of the box side wall.

[0032] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, the second guide push-pull rod 41 is a screw rod that passes through the support column 2. Side adjusting nuts 44 that cooperate with the screw rod are fixedly installed on both the left and right sides of the support column 2. The extension and positioning of the second guide push-pull rod 41 are controlled by the threaded engagement, and the structure is simple and reliable. In another embodiment, a hydraulic cylinder can be installed on the side of the support column 2 facing the U-shaped sheet metal box. The hydraulic rod can be used to push and position the side walls of the upper and lower U-shaped sheet metal box. The hydraulic rod can provide greater propulsion force.

[0033] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, a top block bracket 43 for supporting the top block 42 is also installed on the support column 2. The surface of the top block bracket 43 supporting the top block 42 is horizontal. The top block bracket 43 provides support and movement guidance for the top block 42, so that the top block 42 can move along the horizontal plane. This avoids the sinking of the movement trajectory of the top block 42 due to the gravity of the top block 42 and the second guide push rod 41, and improves the stability of the movement of the top block 42.

[0034] Based on the above embodiments, in one embodiment, such as Figures 1-6 In the provided embodiment, a bottom beam 7 is welded to the bottom of the support columns 2 on both sides. The lower surface of the bottom beam 7 is a horizontal plane. The lower surface of the bottom beam 7 is used as the support surface, which increases the contact area between the top support bracket and the lower U-shaped sheet metal box 6, reduces the pressure, and protects the surface structure of the lower U-shaped sheet metal box 6.

[0035] Based on the above embodiments, in one embodiment, such as Figures 1-6In the provided embodiment, connecting plates extending along the length of the packaging box are provided at both ends of the upper and lower frames. Mounting through holes are symmetrically provided on the corresponding upper and lower connecting plates. A tensioning screw 11 is installed in the mounting through hole. The two ends of the tensioning screw 11 pass through the lower surface of the connecting plate of the lower frame and the upper surface of the connecting plate of the upper frame. A fastening nut 12 is provided at both ends of the tensioning screw 11. By tightening the fastening nuts 12 at both ends of the screw 11 in opposite directions, the upper and lower frames are aligned and tightened, thereby fixing the upper and lower U-shaped sheet metal boxes.

[0036] When using the snap-fit ​​welding fixture provided by this utility model, the lower frame 9 is set with its opening facing upwards, and the lower U-shaped sheet metal box 6 is placed inside the lower frame 9. Multiple top support brackets are arranged along the length of the packaging box inside the lower U-shaped sheet metal box 6. Then, the upper U-shaped sheet metal box 6 is inverted and placed on the top support brackets. The upper U-shaped sheet metal box 6 is adjusted to a suitable height by rotating the guide push-pull rod 31. The side wall weld seams of the upper and lower U-shaped sheet metal boxes are leveled and the positions of the upper and lower U-shaped sheet metal boxes are fixed by rotating the second guide push-pull rod 41. Then, the upper frame 8 is snapped onto the upper U-shaped sheet metal box 5. The upper and lower frames are tightened by the tension screw 11 and the fastening nut to fix the upper and lower U-shaped sheet metal boxes from the outside to the inside.

[0037] In the snap-fit ​​welding fixture provided by this utility model, the top support bracket can adjust and position the upper and lower U-shaped sheet metal boxes; and can provide fixed support from the inside to the outside for the upper and lower U-shaped sheet metal boxes to be welded during welding. The upper and lower frames can provide fixed support from the outside to the inside for the boxes to be welded during welding. While ensuring the alignment of the weld seams, it can effectively prevent the deformation of the box wall panels due to welding stress during the welding process, improve the welding quality, and solve the problems of poor positioning accuracy when welding large sheet metal packaging boxes in the prior art, as well as the problems of box deformation caused by the inability to fix the box parts to be welded, difficulty in ensuring the geometric dimensions of the packaging box, and low welding efficiency.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A clamping assembly welding fixture, characterized in that, The first top support mechanism has a top support plane for providing support to the upper U-shaped metal box body buckled on the first top support bracket; the second top support mechanism is further provided with a pressing plane for pressing the butt joint of the upper and lower U-shaped metal box bodies; the buckling assembly welding tool further comprises upper and lower frames with a certain length; the lower frame has a constraint surface in contact with the outer side wall surface of the lower U-shaped metal box body and a supporting surface supporting the bottom surface of the U-shaped metal box body, and the upper frame has a constraint surface in contact with the outer side wall surface of the upper U-shaped metal box body; the upper and lower frames are further provided with a tensioning structure, and after being tensioned, there is a gap at the position corresponding to the welding seam.

2. The clamping assembly of claim 1, wherein: The first top support mechanism comprises a guide push-pull rod sleeved on the top beam and a top support plate installed at the top of the guide push-pull rod, and the upper surface of the top support plate constitutes the above-mentioned top support plane.

3. The clamping assembly of claim 2, wherein: The guide push-pull rod is a screw rod, and the top and bottom sides of the top beam are fixed with top adjusting nuts matched with the guide push-pull rod, and the top support plate is rotationally matched with the top of the screw rod.

4. The clamping assembly of claim 2, wherein: The guide push-pull rod has two rods, which are respectively sleeved on the two ends of the cross beam close to the support columns and are symmetrically arranged on the two sides of the top support plate.

5. The clamping assembly of claim 3, wherein: The bottom of the top support plate is provided with a top support plate support corresponding to the position of the guide push-pull rod, and the top support plate support is provided with a light hole for inserting the guide push-pull rod.

6. The assembly of claim 1-5, wherein, The second top support mechanism comprises a second guide push-pull rod sleeved on the support column and a top block installed at the end of the second guide push-pull rod facing the outside of the top support bracket, and the top block has a plane flush with the side wall surface of the U-shaped metal box body, which constitutes the above-mentioned pressing plane.

7. The clamping assembly of claim 6, wherein: The second guide push-pull rod is a screw rod, and the left and right sides of the support column are fixed with side adjusting nuts matched with the second guide push-pull rod, and the top block is rotationally matched with the top of the screw rod.

8. The clamping assembly of claim 7, wherein: The support column is provided with a top block support for supporting the top block, and the surface of the top block support for supporting the top block is a horizontal surface.

9. The assembly of claim 1-5, wherein, The bottom of the two side support columns is further provided with a bottom beam, and the two ends of the bottom beam are respectively connected to the bottom of the two side support columns, and the lower surface of the bottom beam is in contact with the inner bottom surface of the lower U-shaped metal box body, thereby constituting the above-mentioned support surface.

10. The assembly of claim 1-5, wherein, The two ends of the upper and lower frames are provided with connecting plates extending in the extension direction of the packaging box body, and the connecting plates at the two ends of the upper and lower frames are symmetrically provided with mounting through holes, and the tensioning screw rods are sleeved in the symmetrically mounted through holes, thereby constituting the above-mentioned tensioning structure.

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