Locating tool for front suspension of barha racing car

Abstract

The utility model relates to the field of automobile structures, in particular to a positioning tool for a front suspension of a barha racing car. A positioning screw rod; a locking bolt; a ball head; welding a sleeve; a ball head adjusting bolt; a first fixing seat; a second fixed seat; an upper swing arm; a lower swing arm; the left lower swing arm is welded with a sleeve positioning block; a left upper swing arm ball head positioning block; a pipe is welded on the upper swing arm; the upper swing arm is welded with a pipe; the lower swing arm is welded with a pipe; the lower swing arm is welded with a pipe; the right lower swing arm is welded with a sleeve positioning block; the right side upper swing arm ball head positioning block and the base can be located on the ground or fixed to a welding platform; a first fixing seat and a second fixing seat are respectively mounted at the left and right ends of the base; and a ball head positioning block and a welding sleeve positioning block are mounted at the lower end of the upper surface of the base. According to the utility model, the displacement generated by thermal deformation in the welding process is reduced; errors caused by manual adjustment and measurement are reduced, the mounting process is simplified, and the mounting precision of the suspension is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile structure, concretely relates to a Baja racing car front suspension positioning tool. BACKGROUND

[0002] With the vigorous development of college engineering competition projects, the Baja (Baja SAE) off-road racing project gradually becomes an important practical platform for cultivating students' engineering ability, helping to improve engineering design and practical ability. The design of the suspension system is crucial to the controllability, stability and safety, especially in off-road driving, which needs to bear complex load.

[0003] Now the suspension positioning method depends on manual measurement and adjustment, which is easy to produce error and time-consuming and laborious, and it is difficult to guarantee the precision. The tool on the market is mostly for large vehicles, which is not suitable for the miniaturization demand of Baja racing car. Therefore, the utility model not only improves the suspension installation precision and reduces the error, but also simplifies the installation process. SUMMARY

[0004] To solve the above technical problems, the main purpose of the utility model is to provide a Baja racing car front suspension positioning tool which is reasonable in structure and convenient to install.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme to solve it.

[0006] A Baja racing car front suspension positioning tool, comprising a base, a positioning screw, a locking bolt, a ball head, a welded sleeve, a ball head adjusting bolt, a first fixed seat, a second fixed seat, an upper swing arm, a lower swing arm, a welded sleeve positioning block, a ball head positioning block, an upper swing arm left welding pipe, an upper swing arm right welding pipe, a lower swing arm left welding pipe and a lower swing arm right welding pipe; the base can be placed on the ground or fixed on the welding platform; the first fixed seat and the second fixed seat are respectively installed at the left and right ends of the base, and the ball head positioning block, the welded sleeve and the welded sleeve positioning block are installed at the lower end of the upper surface.

[0007] Further, the material of the base is 40Cr, the size is 500*536*40 (unit: millimeter); the material of the positioning screw is 40Cr, the length is 500 millimeters, the diameter is 8 millimeters, and the pitch is 1.25 millimeters; the locking bolt is a common coarse thread bolt, the material is 40Cr, and the nominal diameter is 8 millimeters; the length of the ball head screw is 48.05 millimeters, and the installation hole diameter is 10 millimeters; the material of the ball head bolt is 40Cr, and the nominal diameter is 8 millimeters.

[0008] Further, hexagonal locking bolts are installed at the inner and outer points of the swing arm welding pipe, which reduces the displacement amount caused by thermal deformation during welding.

[0009] Further, the upper swing arm is positioned by the first fixing seat, the second fixing seat, the ball head positioning block and the locking bolt, the pipe material is 4130 structural steel, the outer diameter size and thickness are 25.4*1.6 (unit: millimeter), and the included angle of the two pipes is 43.33 degrees; the lower swing arm is positioned by the first fixing seat, the second fixing seat, the welding sleeve positioning block and the locking bolt, the pipe material is 4130 structural steel, the outer diameter size and thickness are 25.4*1.6 (unit: millimeter), and the included angle of the two pipes is 53.13 degrees.

[0010] Further, the front suspension upper swing arm inner point is fixed on the tool through a ball head, the ball head screw rod and the pipe are connected through threads, the ball head adjusting bolt (6) is an adjusting structure of the screw rod length, and the front suspension lower swing arm inner side is fixed on the tool through a welding sleeve, and the center hole diameter of the welding sleeve (5) is 27 mm.

[0011] Further, the front suspension upper swing arm and the lower swing arm are different in length due to the installation positions on the left and right sides of the racing car, so the upper swing arm and the lower swing arm can be divided into the left side and the right side, and the positions of the welding sleeve positioning block and the ball head positioning block are different.

[0012] Further, the left side lower swing arm welding sleeve positioning block and the right side lower swing arm welding sleeve positioning block are both installed on the welding tool, and the distance between the circular centers of the two welding sleeve positioning blocks is 50.76 mm, and the vertical distance is 10.76 mm.

[0013] Further, the left side upper swing arm ball head positioning block and the right side upper swing arm ball head positioning block are both installed on the welding tool, and the distance between the circular centers of the two ball head positioning blocks is 203.62 mm, and the vertical distance is 173.62 mm.

[0014] The beneficial effects of the utility model are shown in that:

[0015] 1. The front suspension swing arm is fixed on the tool through the positioning block, the locking bolt, the screw rod, the ball head and the welding sleeve, the freedom of the pipe is limited, and the displacement amount generated due to thermal deformation in the welding process is reduced.

[0016] 2. The front suspension upper swing arm and the lower swing arm are fixed through three points, the included angle of the two pipes, the distance between the left and right welding pipes and the distance between the swing arm inner point and the left and right welding pipes are determined, the error generated due to manual adjustment and measurement is reduced, the installation process is simplified, and the suspension installation precision is improved. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the following will briefly introduce the drawings needed for the embodiment or the prior art description.

[0018] Figure 1The isometric axis view of the front suspension positioning tool of the baha racing car

[0019] Figure 2 The front view of the front suspension positioning tool of the baha racing car

[0020] Figure 3 The back view of the front suspension positioning tool of the baha racing car

[0021] Figure 4 The top view of the front suspension positioning tool of the baha racing car

[0022] Figure 5 The side view of the front suspension positioning tool of the baha racing car

[0023] In the above figure:

[0024] 1 base; 2 positioning screw; 3 locking bolt; 4 ball head; 5 welding sleeve; 6 ball head adjusting bolt; 7 first fixed seat; 8 second fixed seat; 9 upper swing arm; 10 lower swing arm; 11 left lower swing arm welding sleeve positioning block; 12 left upper swing arm ball head positioning block; 13 upper swing arm left welding pipe; 14 upper swing arm right welding pipe; 15 lower swing arm left welding pipe; 16 lower swing arm right welding pipe; 17 right lower swing arm welding sleeve positioning block; 18 right upper swing arm ball head positioning block. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings

[0026] Reference Figure 1 , Figure 2 , Figure 3 And Figure 4 , a front suspension positioning tool of a baha racing car, comprising a base 1, a positioning screw 2, a locking bolt 3, a ball head 4, a welding sleeve 5, a ball head adjusting bolt 6, a first fixed seat 7, a second fixed seat 8, an upper swing arm 9, a lower swing arm 10, a left lower swing arm welding sleeve positioning block 11, a left upper swing arm ball head positioning block 12, an upper swing arm left welding pipe 13, an upper swing arm right welding pipe 14, a lower swing arm left welding pipe 15, a lower swing arm right welding pipe 16, a right lower swing arm welding sleeve positioning block 17, and a right upper swing arm ball head positioning block 18

[0027] Further, the size of the base is 500*536*40 (unit: millimeter), the front suspension upper swing arm is positioned through the first fixed seat, the second fixed seat, the ball head positioning block and the locking bolt; and the lower swing arm is positioned through the first fixed seat, the second fixed seat, the welding sleeve positioning block and the locking bolt.

[0028] Further, the hexagonal locking bolts are installed on the inner and outer points of the swing arm to reduce the displacement caused by thermal deformation during welding.

[0029] Further, the inner point of the front suspension swing arm is fixed on the tool through the ball head and ball head positioning block, and the installation length of the ball head and the pipe fitting can be adjusted through the ball head adjusting bolt.

[0030] Further, the front suspension swing arm and the lower swing arm are divided into left and right sides due to the different installation positions of the upper and lower swing arms on the left and right sides of the racing car.

[0031] Further, the ball head positioning block of the front suspension swing arm is divided into left and right sides, and the welding sleeve positioning of the lower swing arm is divided into left and right sides. The distance between the centers of the two ball head positioning blocks is 203.62 mm, and the vertical distance is 173.62 mm. The distance between the centers of the two welding positioning blocks is 50.76 mm, and the vertical distance is 10.76 mm.

Claims

1. A Baja vehicle front suspension alignment fixture, characterized by It includes: Base (1), positioning screw (2), locking bolt (3), ball head (4), welding sleeve (5), ball head adjusting bolt (6), first fixed seat (7), second fixed seat (8), upper swing arm (9), lower swing arm (10), left lower swing arm welding sleeve positioning block (11), left upper swing arm ball head positioning block (12), upper swing arm left welding pipe (13), upper swing arm right welding pipe (14), lower swing arm left welding pipe (15), lower swing arm right welding pipe (16), right lower swing arm welding sleeve positioning block (17), right upper swing arm ball head positioning block (18); the base can be placed on the ground or fixed on the welding platform; the first fixed seat and the second fixed seat are respectively installed at the left and right ends of the base; the ball head positioning block and the welding sleeve positioning block are installed on the lower end of the upper surface of the base, the front suspension upper swing arm left welding pipe (13) is fixed through the first fixed seat (7), the positioning screw (2) and the locking bolt (3), the front suspension upper swing arm right welding pipe (14) is fixed through the second fixed seat (8), the positioning screw (2) and the locking bolt (3), the front suspension lower swing arm left welding pipe (15) is fixed through the first fixed seat (7), the positioning screw (2) and the locking bolt (3), and the front suspension lower swing arm right welding pipe (16) is fixed through the second fixed seat (8), the positioning screw (2) and the locking bolt (3).

2. The Baja vehicle front suspension positioning fixture of claim 1, wherein: The base (1) is made of 40Cr, with a size of 500x536x40mm; the positioning screw (2) is made of 40Cr, with a length of 500mm, a diameter of 8mm and a pitch of 1.25mm; the locking bolt (3) is a coarse thread bolt structure made of 40Cr, with a nominal diameter of 8mm; the ball head (4) has a ball head screw length of 48.05mm and an installation hole diameter of 16mm; the ball head adjusting bolt (6) is made of 40Cr, with a nominal diameter of 8mm.

3. The Baja vehicle front suspension positioning fixture of claim 1, wherein, The front suspension upper swing arm inner point is fixed on the tool through the ball head, the ball head screw and the pipe are connected through threads, the ball head adjusting bolt (6) is an adjusting structure of the screw length, and the front suspension lower swing arm inner side is fixed on the tool through the welding sleeve, and the center hole diameter of the welding sleeve (5) is 27mm.

Images