Welding positioning device for front axle assembly of special vehicle

Abstract

The utility model relates to the field of vehicle machining, and discloses a special vehicle front axle assembly welding positioning device which comprises a machining table, one side of the machining table is fixedly connected with a stop lever, and the machining table is provided with a pressing rod located above the stop lever and a hydraulic cylinder driving the pressing rod to ascend and descend. The two ends of the machining table are slidably connected with symmetrically-arranged positioning columns, and inner holes are formed in the positioning columns. The front axle assembly has the advantages that the front axle body and the cylindrical components at the two ends of the front axle body are limited and positioned, welding of the cylindrical components at the two ends of the front axle assembly body is facilitated, and welding quality and welding efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle processing, and particularly relates to a welding positioning device for a front axle assembly of a special vehicle. Background Technique

[0002] Special vehicles refer to vehicles that exceed the design vehicle gauge in terms of external dimensions, weight, etc. and are for special purposes. They are specially made or modified, equipped with fixed devices and equipment, and their main function is not for carrying people or goods. The front axle assembly of a special vehicle is welded by several components. The weight and volume of the main body of the front axle assembly are relatively large. Therefore, when welding other components to the main body, corresponding devices are needed to assist in positioning and fixing. Content of the Utility Model

[0003] The purpose of the utility model is to provide a welding positioning device for a front axle assembly of a special vehicle, which has the effect of facilitating the welding of cylindrical components at both ends of the front axle assembly main body.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a welding positioning device for a front axle assembly of a special vehicle, including a processing table, a stop bar is fixedly connected to one side of the processing table, a pressing bar located above the stop bar and a hydraulic cylinder for driving the pressing bar to lift are installed on the processing table, and symmetrically arranged positioning columns are slidably connected to both ends of the processing table, and inner holes are provided in the positioning columns.

[0005] By adopting the above technical solutions, the front axle main body is placed on the processing table, and both ends of the front axle main body are located on the positioning columns on both sides. The stop bar prevents the front axle main body from tipping backward. The cylindrical components to be welded to both ends of the front axle main body are placed into the inner holes of the positioning columns. The hydraulic cylinder drives the pressing bar to press down to fix the front axle main body on the processing table, and then the welding work of the cylindrical components at both ends is carried out. This device can facilitate the positioning of the front axle main body and the cylindrical components when welding the cylindrical components at both ends of the front axle main body, and is beneficial to improving the welding work efficiency.

[0006] The further setting of the utility model is: the stop bars are multiple and located on the same horizontal line.

[0007] By adopting the above technical solutions, multiple stop bars jointly prevent the front axle main body from tipping backward and improve the positioning stability.

[0008] The further setting of the utility model is: the pressing bars are multiple and located on the same horizontal line.

[0009] By adopting the above technical solutions, multiple pressing bars jointly fix the front axle main body on the processing table and improve the welding work stability.

[0010] The further setting of the utility model is: a positioning plate opposite to the stop bar is slidably connected to the processing table.

[0011] By adopting the above technical solution, the shift lever and the positioning plate jointly restrict and fix the front and rear sides of the front axle main body, making the front axle main body in a vertical state during the welding operation, which is beneficial for the pressure lever to fix the front axle main body on the processing table and improve the quality of the welding operation.

[0012] A further setting of the present utility model is that: the processing table is provided with an adjustment cavity, an adjustment screw perpendicular to the positioning plate is rotatably connected in the adjustment cavity, the adjustment screw is threadedly connected with a sliding plate sliding in the adjustment cavity, and the

[0013] positioning plate is fixed to the sliding plate.

[0014] By adopting the above technical solution, rotating the adjustment screw causes the sliding plate to drive the positioning plate to move horizontally relative to the processing table, changing the distance between the positioning plate and the shift lever according to the size of the front axle main body, so that the shift lever and the positioning plate can jointly restrict and fix the front and rear sides of the front axle main body, improving the flexibility of the positioning device.

[0015] A further setting of the present utility model is that: the sliding plate is provided with a first sliding groove, a guide rod is fixed in the adjustment cavity, and both sides of the sliding plate are inserted and slid on the guide rod.

[0016] By adopting the above technical solution, when the adjustment screw drives the positioning plate to move horizontally relative to the processing table, the first sliding groove and the guide rod jointly limit and position the positioning plate.

[0017] A further setting of the present utility model is that: the upper end of the positioning plate is provided with a chamfer.

[0018] By adopting the above technical solution, it is convenient to place the front axle main body between the positioning plate and the shift lever.

[0019] A further setting of the present utility model is that: the processing table is rotatably connected with a horizontal screw perpendicular to the adjustment screw, both ends of the horizontal screw are provided with opposite threads, the bottoms of the two positioning columns are fixed with moving blocks sliding on the processing table, and the two moving blocks are respectively threadedly connected to both ends of the horizontal screw.

[0020] By adopting the above technical solution, rotating the horizontal screw, the horizontal screw rotates to drive the two positioning columns to move relatively closer or farther away through the moving blocks, so as to adjust the distance between the two positioning columns according to the size of the front axle main body, improving the flexibility of the positioning device.

[0021] A further setting of the present utility model is that: the processing table is provided with a second sliding groove for the moving block to slide.

[0022] By adopting the above technical solution, the horizontal screw rotates to drive the moving block to slide relative to the second sliding groove, thereby driving the two positioning columns to move relatively closer or farther away.

[0023] A further setting of the utility model is that: rotating handles are fixed at the ends of the adjusting screw rod and the horizontal screw rod.

[0024] By adopting the above technical solution, it is convenient to rotate the adjusting screw rod and the horizontal screw rod by rotating the rotating handle.

[0025] The beneficial effects of the utility model are as follows:

[0026] 1. Place the front axle main body on the processing table, with both ends of the front axle main body located on the two side positioning columns. The stop rod prevents the front axle main body from tipping backward. Cylindrical components to be welded to both ends of the front axle main body are placed into the inner holes of the positioning columns. The hydraulic cylinder drives the pressing rod to press down to fix the front axle main body on the processing table, and then welding work is carried out on the cylindrical components at both ends. This device can facilitate the positioning of the front axle main body and the cylindrical components during the welding of the cylindrical components at both ends of the front axle main body, which is beneficial to improving the welding work efficiency.

[0027] 2. Rotate the adjusting screw rod to drive the sliding plate to drive the positioning plate to move horizontally relative to the processing table, and change the distance between the positioning plate and the stop rod according to the size of the front axle main body, so that the stop rod and the positioning plate can jointly restrict and fix the front and back sides of the front axle main body, improving the flexibility of the positioning device.

[0028] 3. Rotating the horizontal screw rod drives the two side positioning columns to move closer to or away from each other through the moving block, so as to adjust the distance between the two positioning columns according to the size of the front axle main body, improving the applicability of the positioning device. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only 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.

[0030] Figure 1 It is a structural schematic diagram of the present utility model.

[0031] Figure 2 It is a schematic diagram of the internal structure of the adjusting cavity in the present utility model.

[0032] Figure 3 It is a side view structural schematic diagram of the present utility model.

[0033] In the figure, 1. Processing table; 2. Stop rod; 3. Pressing rod; 4. Positioning column; 5. Positioning plate; 6. Adjusting cavity; 7. Adjusting screw rod; 8. Sliding plate; 9. First chute; 10. Guide rod; 11. Horizontal screw rod; 12. Moving block; 13. Second chute; 14. Rotating handle. Detailed Embodiment

[0034] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0035] Embodiment 1, a welding positioning device for the front axle assembly of a special vehicle, as Figures 1-3 shown, including a processing table 1, a stop bar 2 is fixedly connected to one side of the processing table 1, a pressing bar 3 located above the stop bar 2 and a hydraulic cylinder for driving the pressing bar 3 to lift are installed on the processing table 1, and symmetrically arranged positioning columns 4 are slidably connected to both ends of the processing table 1, and an inner hole is provided in the positioning column 4.

[0036] Further, the stop bar 2 is provided with a plurality of them located on the same horizontal line.

[0037] Further, the pressing bar 3 is provided with a plurality of them located on the same horizontal line.

[0038] Further, a positioning plate 5 opposite to the stop bar 2 is slidably connected to the processing table 1.

[0039] Further, the processing table 1 is provided with an adjusting cavity 6, an adjusting screw rod 7 perpendicular to the positioning plate 5 is rotatably connected in the adjusting cavity 6, the adjusting screw rod 7 is threadedly connected with a sliding plate 8 slidable in the adjusting cavity 6, and the positioning plate 5 is fixed to the sliding plate 8.

[0040] Further, a first chute 9 is provided on the sliding plate 8, a guide rod 10 is fixed in the adjusting cavity 6, and both sides of the sliding plate 8 are inserted and slid on the guide rod 10.

[0041] Further, the upper end of the positioning plate 5 is provided with a chamfer.

[0042] Further, a horizontal screw rod 11 perpendicular to the adjusting screw rod 7 is rotatably connected to the processing table 1, both ends of the horizontal screw rod 11 are provided with opposite threads, and moving blocks 12 slidable on the processing table 1 are fixed to the bottoms of the two positioning columns 4, and the two moving blocks 12 are respectively threadedly connected to both ends of the horizontal screw rod 11.

[0043] Further, a second chute 13 for the moving block 12 to slide is provided on the processing table 1.

[0044] Further, rotating handles 14 are fixed to the ends of both the adjusting screw rod 7 and the horizontal screw rod 11.

[0045] Working principle of the utility model: Rotate the horizontal screw rod 11. When the horizontal screw rod 11 rotates, it drives the two positioning columns 4 on both sides to approach or move away from each other through the moving block 12, so as to adjust the distance between the two positioning columns 4 according to the size of the front axle body. Place the front axle body on the processing table 1, with both ends of the front axle body located on the two positioning columns 4 on both sides. The stop rod 2 prevents the front axle body from tipping backward. Place the cylindrical components to be welded to both ends of the front axle body into the inner holes of the positioning columns 4. Rotate the adjusting screw rod 7 to make the sliding plate 8 drive the positioning plate 5 to move horizontally relative to the processing table 1, and change the distance between the positioning plate 5 and the stop rod 2 according to the size of the front axle body, so that the stop rod 2 and the positioning plate 5 can jointly restrict and fix the front and rear sides of the front axle body. The hydraulic cylinder drives the pressure rod 3 to press down to fix the front axle body on the processing table 1, and then weld the cylindrical components at both ends.

[0046] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A welding positioning device for a front axle assembly of a special vehicle, comprising a processing table (1), characterized in that: A stop rod (2) is fixedly connected to one side of the processing table (1), and a pressure rod (3) located above the stop rod (2) and a hydraulic cylinder for driving the pressure rod (3) to rise and fall are installed on the processing table (1). Two ends of the processing table (1) are slidably connected to symmetrically arranged positioning columns (4), and an inner hole is provided in the positioning column (4).

2. The welding positioning device for the front axle assembly of a special vehicle according to claim 1, characterized in that: The blocking rods (2) are arranged in a plurality and are located on the same horizontal line.

3. The welding positioning device for the front axle assembly of a special vehicle according to claim 1, characterized in that: The pressure rods (3) are arranged in a plurality and are located on the same horizontal line.

4. The welding positioning device for the front axle assembly of a special vehicle according to claim 1, characterized in that: A positioning plate (5) opposite to the blocking rod (2) is slidably connected to the processing table (1).

5. The welding positioning device for the front axle assembly of a special vehicle according to claim 4, characterized in that: The processing table (1) is provided with an adjusting inner cavity (6), in which an adjusting screw (7) perpendicular to the positioning plate (5) is rotatably connected, and the adjusting screw (7) is threadedly connected to a sliding plate (8) that slides in the adjusting inner cavity (6), and the positioning plate (5) is fixed to the sliding plate (8).

6. The welding positioning device for the front axle assembly of a special vehicle according to claim 5, characterized in that: The sliding plate (8) is provided with a first sliding groove (9), a guide rod (10) is fixed in the adjusting inner cavity (6), and two sides of the sliding plate (8) are inserted and slidably connected to the guide rod (10).

7. The welding positioning device for the front axle assembly of a special vehicle according to claim 4, characterized in that: The upper end of the positioning plate (5) is provided with a chamfer.

8. The welding positioning device for the front axle assembly of a special vehicle according to claim 5, characterized in that: The processing table (1) is rotatably connected to a horizontal screw (11) perpendicular to the adjusting screw (7), and opposite threads are arranged at both ends of the horizontal screw (11). Moving blocks (12) that slide on the processing table (1) are fixed at the bottom of the positioning columns (4) on both sides, and the two moving blocks (12) are respectively threadedly connected to the two ends of the horizontal screw (11).

9. The welding positioning device for the front axle assembly of a special vehicle according to claim 8, characterized in that: The processing table (1) is provided with a second sliding groove (13) for the moving block (12) to slide.

10. The welding positioning device for the front axle assembly of a special vehicle according to claim 8, characterized in that: Rotating handles (14) are fixed to the ends of the adjusting screw rod (7) and the horizontal screw rod (11).

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