A vertical coaxial welding tool for three-proof devices for special vehicles

Abstract

The present invention provides a vertical coaxial welding tooling for a three-proof device of a special vehicle, which includes an air intake positioning plate, a base positioning plate, a fastening positioning plate, connecting transverse ribs, three columns, guide sleeves and fastening screws. The structures of various parts of this coaxial welding tooling are simple, convenient for installation, easy to implement, with strong versatility and operability. Through the mutual combination and welding of the connecting transverse ribs, the three columns and the fastening positioning plate, the height between the air intake positioning plate and the base positioning plate and the coaxiality of the circular holes on the inner sides of the two positioning plates can be ensured; through the welding of the mounting holes on the fastening positioning plate and the guide sleeves on its back, the accurate positioning and installation of the fastening screws can be ensured, and the welding position accuracy of the mounting fixture for the booster fan bracket of the three-proof device on the partition plate or the upper vertical deck can be ensured, ultimately ensuring the installation accuracy of the vertical installation of the three-proof device.

Description

Technical Field

[0001] The invention belongs to the technical field of welding jigs, and particularly relates to a vertical coaxial welding jig for a three-proof device of a special vehicle. Background Art

[0002] During the vertical installation process of the three-proof device of a special vehicle, due to welding errors in the installation and fixing attachments of the supercharger fan on the upper vertical deck assembly or the vertical partition assembly, it is impossible to ensure the welding and assembly accuracy, resulting in poor coaxiality of the intake flange assembly, rubber joint, supercharger fan, and filter absorber during vertical installation, making the installation difficult. Therefore, it is necessary to rework the position of the installation and fixing attachment of the supercharger fan, which seriously affects the welding quality and aesthetics of the vehicle and reduces the vehicle assembly progress. Therefore, it is necessary to design a vertical coaxial welding jig for the three-proof device of a special vehicle. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] The invention provides a vertical coaxial welding jig for a three-proof device of a special vehicle to solve the technical problem of how to improve the vertical installation accuracy of the three-proof device.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the invention provides a vertical coaxial welding jig for a three-proof device of a special vehicle. The coaxial welding jig includes an intake positioning plate, a base positioning plate, a fastening positioning plate, connecting cross ribs, a first column, a second column, a third column, a guide sleeve, and a fastening screw; wherein,

[0007] The first column, the second column, and the third column have the same structure, except that the lengths of the three columns are different, with the first column being the longest and the third column being the shortest;

[0008] The intake positioning plate is disc-shaped, with a circular weight-reducing hole in the middle. A plurality of mounting holes are evenly machined around the weight-reducing hole, and the positions of the mounting holes are coaxial and coincident with the mounting holes on the top deck flange; straight-edge portions are provided at both ends of the intake positioning plate; the intake positioning plate is placed horizontally and is perpendicularly welded and fixed to the top side edges of the vertically placed first column and third column through the straight-edge portions at both ends;

[0009] The base positioning plate is a flat plate structure, with a circular weight-reducing hole inside the plate body. A plurality of mounting holes are evenly machined around the weight-reducing hole, and the positions of the mounting holes are coaxial with the mounting holes on the base on the bottom deck; the base positioning plate is placed horizontally and is perpendicularly welded and fixed to the bottom side edge of the first column near the circular weight-reducing hole; the upper surface of the base positioning plate near the partition or the upper vertical deck is perpendicularly welded and fixed to the bottom end surface of the vertically placed second column;

[0010] Both of the two connecting transverse ribs with the same length are horizontally placed and separated by a certain distance. The inner end faces of the two connecting transverse ribs are perpendicularly welded and fixed to the side wall of the first upright post; the upper surface of the connecting transverse rib located above is welded and fixed to the bottom end face of the third upright post near the middle position thereof, and the lower surface of the connecting transverse rib located below is perpendicularly welded and fixed to the top end face of the second upright post near the outer end thereof;

[0011] The fastening and positioning plate is of a flat plate structure. A plurality of mounting holes for fixing the connecting disc bracket of the supercharger fan and a plurality of mounting holes for fixing the support bracket of the supercharger fan are respectively machined on the plate body; the fastening and positioning plate is vertically placed, and its upper and lower end faces are respectively perpendicularly welded and fixed to the side edges of the outer end faces of the two connecting transverse ribs;

[0012] A plurality of guide sleeves respectively penetrate from the back of the plurality of mounting holes of the fastening and positioning plate and are perpendicularly welded and fixed to the fastening and positioning plate;

[0013] A plurality of fastening screws penetrate from the inner side of the guide sleeves, and the straightness of the fastening screws is maintained by the guide sleeves; the threaded ends of the fastening screws are connected to the fixed seats on the partition plate or the upper vertical deck, and are used for accurately welding the fixed seats on the partition plate or the upper vertical deck.

[0014] Further, the coaxial welding tooling is made of Q235 steel.

[0015] Further, both ends of the base positioning plate are provided with straight edge portions, and the two sides of the straight edge near the circular weight-reducing hole are arc-shaped.

[0016] Further, the first upright post, the second upright post and the third upright post are all square channel steels with a certain thickness and length.

[0017] Further, the connecting transverse rib is a square channel steel with a certain thickness and length.

[0018] Further, the guide sleeve is a cylinder with a through hole having a certain thickness and length.

[0019] Further, the fastening screw is a bolt rod with a threaded portion having a certain length and a smooth shaft portion having a certain length.

[0020] (III) Beneficial effects

[0021] The present invention proposes a vertical coaxial welding tool for a three-defense device for special vehicles, including an air intake positioning plate, a base positioning plate, a fastening positioning plate, connecting transverse ribs, three columns, a guide sleeve and a fastening screw. The various parts of the coaxial welding tool have simple structures, are easy to install, easy to implement, and have strong versatility and operability. Through the mutual combination welding of connecting transverse ribs, three columns, and the fastening positioning plate, the height between the air intake positioning plate and the base positioning plate, as well as the coaxiality of the inner circular holes of the two positioning plates can be ensured; through the welding of the mounting hole on the fastening positioning plate and the guide sleeve on its back, the accurate positioning and installation of the fastening screw can be ensured, and the welding position accuracy of the three-defense device booster fan bracket installation and fixing attachment on the partition or upper vertical deck can be ensured, and finally the accuracy of the vertical installation of the three-defense device can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the coaxial welding tool structure of an embodiment of the present invention;

[0023] Figure 2 An exploded view of a coaxial welding tooling according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the column structure in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the air intake positioning plate in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the base positioning plate in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of connecting transverse reinforcements in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the fastening positioning plate in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the guide sleeve structure in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the fastening screw in an embodiment of the present invention;

[0031] Figure 10 Schematic diagram of the working principle of the coaxial welding tooling according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0033] This embodiment provides a vertical coaxial welding tool for three-defense devices for special vehicles, and its structure is as follows:Figure 1 and 2 As shown in 2 , it mainly includes an intake positioning plate 1, a base positioning plate 2, a fastening positioning plate 3, connecting transverse ribs 5, a first upright post 9, a second upright post 8, a third upright post 4, a guide sleeve 6, and a fastening screw rod 7, all made of ordinary Q235 steel.

[0034] The first upright post 9, the second upright post 8, and the third upright post 4 are all square channel steels with a certain thickness and length, and their structures are as shown in Figure 3 . Figure 3 The difference is that the lengths of the three upright posts are different. Among them, the first upright post 9 is the longest and the third upright post 4 is the shortest.

[0035] The intake positioning plate 1 is in a disc shape, and its structure is as shown in Figure 4 . Figure 4 There is a circular weight-reducing hole in the middle, and 6 mounting holes are evenly machined around the weight-reducing hole. The positions of the 6 mounting holes are coaxial and coincide with the mounting holes on the top deck flange. Straight-edge parts are provided at both ends of the intake positioning plate 1. The intake positioning plate 1 is placed horizontally and is perpendicularly welded and fixed to the top side edges of the vertically placed first upright post 9 and the third upright post 4 respectively through the straight edges at both ends.

[0036] The base positioning plate 2 is in a flat plate structure, and its structure is as shown in Figure 5 . Figure 5 There is a circular weight-reducing hole inside the plate body, and 4 mounting holes are evenly machined around the weight-reducing hole. The positions of the 4 mounting holes are coaxial with the mounting holes on the base located on the bottom deck. Straight-edge parts are provided at both ends of the base positioning plate 2, and the straight edges on both sides of the straight edge close to the circular weight-reducing hole are arc-shaped. The base positioning plate 2 is placed horizontally, and the straight edge close to the circular weight-reducing hole is perpendicularly welded and fixed to the bottom side edge of the first upright post 9. The upper surface of the base positioning plate 2 close to the partition or the upper vertical deck is perpendicularly welded and fixed to the bottom end surface of the vertically placed second upright post 8.

[0037] The connecting transverse rib 5 is a square channel steel with a certain thickness and length, and its structure is as shown in Figure 6 . Figure 6 Two connecting transverse ribs 5 with the same length are both placed horizontally and are separated by a certain distance. The inner end surfaces of the two connecting transverse ribs 5 are both perpendicularly welded and fixed to the side wall of the first upright post 9. The upper surface of the upper connecting transverse rib 5 close to the middle position is welded and fixed to the bottom end surface of the third upright post 4, and the lower surface of the lower connecting transverse rib 5 close to the outer end is perpendicularly welded and fixed to the top end surface of the second upright post 8.

[0038] The fastening positioning plate 3 is in a flat plate structure, and its structure is as shown in Figure 7 . Figure 7 4 mounting holes for fixing the connection disc bracket of the supercharger fan and 4 mounting holes for fixing the supercharger fan bracket are respectively machined on the plate body. The fastening positioning plate 3 is placed vertically, and its upper and lower end surfaces are respectively perpendicularly welded and fixed to the outer end side edges of the two connecting transverse ribs 5.

[0039] The guide sleeve 6 is a cylinder with a through hole of a certain thickness and length, and its structure is as follows: Figure 8 A plurality of guide sleeves 6 are respectively inserted through the back side of the eight mounting holes of the fastening positioning plate 3 and are fixed to the fastening positioning plate 3 by vertical welding.

[0040] The fastening screw rod 7 is a special bolt rod with a certain length of thread and a certain length of optical axis, and its structure is as follows: Figure 9 As shown. A plurality of fastening screws 7 are inserted from the inner side of the guide sleeve 6, and the guide sleeve 6 is used to maintain the straightness of the fastening screws 7. The threaded ends of the fastening screws 7 are connected to the fixing attachments on the bulkhead or the upper vertical deck, and the fixing attachments can be accurately welded to the bulkhead or the upper vertical deck.

[0041] The working principle of the vertical coaxial welding tooling for three-defense devices for special vehicles of the present invention is as follows: Figure 10 When welding the fixed attachments on the bulkhead or the upper vertical deck, first fix the air intake positioning plate and the base positioning plate on the welding fixture with bolts and washers, then connect the fixed attachments of the booster fan mounting bracket to the corresponding fastening screws, adjust the length of the fastening screws, until the bottom surface of the fixed attachment fits the bulkhead or the upper vertical deck, and then weld the fixed attachments of the booster fan mounting bracket on the bulkhead or the upper vertical deck, so as to ensure the welding accuracy of the fixed attachments and the final accuracy of the overall mechanical installation of the three-defense device.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vertical coaxial welding tooling for the three-proof device of special vehicles, characterized in that, The coaxial welding tooling is made of Q235 steel and includes an air inlet positioning plate, a base positioning plate, a fastening positioning plate, connecting cross ribs, a first column, a second column, a third column, a guide sleeve, and a fastening screw; among them, The first column, the second column, and the third column have the same structure, except that the lengths of the three columns are different, with the first column being the longest and the third column being the shortest; The air inlet positioning plate is disc-shaped, with a circular weight-reducing hole in the middle. A plurality of mounting holes are evenly machined around the weight-reducing hole, and the positions of the mounting holes are coaxial and coincident with the mounting holes on the top deck flange. Straight-edge portions are provided at both ends of the air inlet positioning plate. The air inlet positioning plate is placed horizontally and is perpendicularly welded and fixed to the top side edges of the vertically placed first column and third column respectively through the straight edges at both ends; The base positioning plate is a flat plate structure, with a circular weight-reducing hole inside the plate body. A plurality of mounting holes are evenly machined around the weight-reducing hole, and the positions of the mounting holes are coaxial with the mounting holes on the base located on the bottom deck. The base positioning plate is placed horizontally and is perpendicularly welded and fixed to the bottom side edge of the first column near the circular weight-reducing hole. The upper surface of the base positioning plate near the partition or the upper vertical deck is perpendicularly welded and fixed to the bottom end surface of the vertically placed second column. Straight-edge portions are provided at both ends of the base positioning plate, and the straight edges on both sides near the circular weight-reducing hole are arc-shaped; Both of the two connecting cross ribs with the same length are placed horizontally and are separated by a certain distance. The inner end surfaces of the two connecting cross ribs are perpendicularly welded and fixed to the side wall of the first column. The upper connecting cross rib is welded and fixed to the bottom end surface of the third column near the middle position on its upper surface, and the lower connecting cross rib is perpendicularly welded and fixed to the top end surface of the second column near the outer end on its lower surface; The fastening positioning plate is a flat plate structure, and a plurality of mounting holes for fixing the connecting plate bracket of the supercharger fan and a plurality of mounting holes for fixing the supercharger fan bracket are machined on the plate body respectively. The fastening positioning plate is placed vertically, and its upper and lower end surfaces are perpendicularly welded and fixed to the outer end side edges of the two connecting cross ribs respectively; A plurality of guide sleeves are respectively inserted into the back of the plurality of mounting holes of the fastening positioning plate and are perpendicularly welded and fixed to the fastening positioning plate; A plurality of fastening screws are inserted into the inner side of the guide sleeves, and the straightness of the fastening screws is maintained by the guide sleeves. The threaded end of the fastening screw is connected to the fixed seat on the partition or the upper vertical deck for accurately welding the fixed seat on the partition or the upper vertical deck.

2. The coaxial welding tooling according to claim 1, characterized in that, The first column, the second column, and the third column are all square channel steels with a certain thickness and length.

3. The coaxial welding tooling according to claim 1, characterized in that The connecting cross rib is a square channel steel with a certain thickness and length.

4. The coaxial welding tooling according to claim 1, wherein The guide sleeve is a cylinder with a through hole having a certain thickness and length.

5. The coaxial welding tooling according to claim 1, characterized in that, The fastening screw is a bolt rod with a threaded portion of a certain length and a smooth shaft of a certain length.

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