JPH0228497B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile repair device for replacing the front part of an automobile that has been severely crushed and correcting body distortion. A pair of supports was installed in this support groove, a connecting rod was passed through the opposing support, the body to be repaired was placed horizontally in the center of the surface plate, and a hole was drilled in the surface plate. Install the lowerer in the lowerer mounting groove and pull it.Meanwhile, drill two parallel support platform guide grooves on the surface plate, and place the replacement chassis on the support platform that moves along the guide grooves. Then, the machined dimensions of the body are checked by matching this replacement chassis against the body.

The device that restores a crushed car to its original shape by locally pulling it has multiple rotatable pulling mechanisms placed around a base. ), each part is measured, and slight tension corrections are repeated each time. The work efficiency is extremely low and the quality is poor. In recent years, with the spread of front-wheel drive vehicles, high dimensional accuracy has been required for the front chassis, and as the quality of workers has declined, the industry has been waiting for the emergence of repair equipment with higher precision and better workability. The present invention meets this need, and will be described in detail below based on the drawings.

Two parallel body support grooves 2, 2 are bored in the center of a surface plate 1 whose surface is uniformly horizontal and serves as a horizontal reference plane, and four supports 3 are installed in these support grooves 2.
The connecting rod 4 is passed through the opposing supports 3,3. The two body support grooves 2, 2 are symmetrical with respect to the center line A shown in FIG. 2 and have a predetermined distance, and as shown in FIG. ) is fitted, and this support 3 is securely installed via rods 5,5. A known lift 6 for lifting the body is arranged between the body support grooves 2, 2. Insert the lower part of the gripping tool 7 into the connecting rod 4 that is passed through the support tool 3,
The lower edge of the body is gripped with four grippers 7. The support 3 and the grip 7 are integrated via the connecting rod 4, and the body can be supported horizontally.

A large number of rower mounting grooves 8 parallel to each other are bored in the front part of the surface plate 1 symmetrically with respect to the center line A and kept at a predetermined distance. Drill support guide grooves 9, 9. Since the mounting groove 8 and the guide groove 9 have predetermined dimensions with respect to the center line A, they function as dimension lines on the surface plate 1. In addition to the parallel lower mounting groove 8, a lower mounting groove 10 is bored in the frontmost part of the surface plate 1. Note that there is a rectangular window at the end of each groove, and the stopper 11 is introduced into the groove through this window. A tensile roper 12 that locally pulls the body includes a horizontal member 13, a swinging member 14 that can swing freely, and a cylinder 1.
5 and a fitting member 16 that is fitted into the lower mounting grooves 8 and 10, and is set by fitting the fitting member 16 into a desired position of the mounting groove 10 as shown in FIG.

The support stand 18 that holds the replacement chassis 17 is the fourth
As shown in the figure, a pair of threaded shafts are arranged on a horizontal body 19 having a dovetail groove to adjust the height of the horizontal body 19 by arranging two pairs of grips 20, 20 which can be moved freely and fixed at any location. 21 and a rotary disk 22 screwed thereto are attached to the lower part of this horizontal body 19, and a roll 24 rotating on the surface plate 1 and a guide groove are attached to the lower part of a base frame 23 that holds this threaded shaft 21 vertically. A pair of sliding pieces 25 to be fitted into the holes 9 are attached symmetrically. A shaft 21 screwed into the base frame 23 rotates together with an integral rotary disk 22 and moves up and down accordingly to adjust the height of the horizontal body 19 thereon.

Next, to explain how to use this device, lift the damaged car body with the lift 6, fit the two pairs of supports 3 into the body support grooves 2, 2,
This is firmly installed on the surface plate 1 using the rod 5, and the connecting rod 4 is spanned between the opposing supports 3, and the lower part of the gripping tool 7 is fitted into this connecting rod 4 to integrate it with the supporting tool 3. Figure 3). The lift 6 is gradually lowered, the lower peripheral protrusion of the body is gripped by the gripper 7, and the body is held horizontally via the four supports 3 as shown in FIG. 4 supports 3 and gripping tools 7
Due to the interaction of the two connecting rods 4, the body is always maintained in a horizontal state directly above the center line A and parallel to the horizontal plane of the surface plate 1, and does not lose this state even when the lowerer 12 is pulled, which will be described later. do not have. If the body is twisted or deformed, you can clearly see the amount of deformation and use it as a guide for correction.
Toe-in, which is an important item for driving stability,
Misalignment of caster and camber is caused by horizontal surface plate 1
It can be easily understood by using the surface of as the reference surface. The surface of the surface plate 1 becomes the horizontal reference surface, and the body is held horizontally with respect to the surface plate 1 directly above the center line A. Therefore, if the gauge G is placed at a predetermined position on the surface plate 1, it will move vertically. Accurately measure dimensions. Conventional devices do not have such a horizontal reference plane, so it is necessary to set up a complicated laser-based measurement ruler unit for each vehicle model.Since the amount of distortion is measured using this ruler unit as a reference, it is difficult to judge the amount of deviation. It was inaccurate. In Fig. 6, the amount of deformation is actually measured by applying a gauge G to each part of the body, but the body is located directly above the center line A of the surface plate 1, and the surface of this surface plate 1 is uniformly horizontal. It is only meaningful if we maintain this. In FIG. 6, by measuring the distance from the center line A to the point where the gauge G is placed and subtracting the gauge value of the gauge G, the horizontal dimension of the body can be calculated. Furthermore, since the distances of the support guide groove 9 and the mounting groove 8 from the center line A are obvious, the installation point of the gauge G can be calculated based on these grooves. If there is a difference between the specifications of the automobile and the actual dimensions, the lowering 12 corrects them. FIG. 7 shows the front chassis being cut by melting, and the inserting member 16 of the lower 12
is fitted into the parallel mounting groove 8, a chain 26 with one end fixed to the body is stretched around the swinging member 14, and fluid at a predetermined pressure is fed into the cylinder 15 to locally pull the body. One end of the chain 26 is extended to the stopper 11 fitted into the mounting grooves 8, 10, etc.
You can also adjust the direction and strength of the pull. This stopper 11 can be fitted into all the grooves of the surface plate 1, and can be fitted into the body or lower 12.
It is also used for fixed reinforcement. The measurement with the gauge G and the tensioning operation with the lowerer 12 are repeated many times, and the tension in the front direction is also corrected by installing the lowering 12 in the orthogonal mounting groove 10 at the front as shown in Fig. 1. conduct. In other words, the lower body 12 can be pulled at any location in any direction by using the mounting grooves 10 and 8 drilled vertically and horizontally.

Next, the support stand 1 moves along the support stand guide groove 9
8, place the replacement chassis 17 and butt it against the body (Fig. 8). The horizontal body 19 holding the replacement chassis 17 with the grips 20, 20 is adjusted to a predetermined height by rotating the left and right rotating disks 22. In this way, the amount of deviation on the body side is recognized by matching the replacement chassis 17 held at a predetermined height horizontally with respect to the surface plate 1.
Minor corrections are iteratively performed using (FIG. 9). Parts such as fenders and bumpers are attached to the replacement chassis 17 of the support stand 18 in this space and docked as shown in FIG. The repaired body is lifted by a lift 6, the connecting rod 4 and support 3 are removed, and the body is carried out from the surface plate 1. FIG. 11 is a plan view showing the support 3 etc. installed on the surface plate 1 again, and the fitting member 1 of the lower 12 is shown in FIG.
6 is fitted into a mounting groove 10 in a right angle direction.

As described above, the present invention provides a surface plate 1 whose surface is uniformly horizontal, and a body support groove 2 and a number of lower mounting grooves 8 which are parallel and symmetrical to the center line A of this surface plate 1. These grooves are kept at a predetermined distance from the center line A so that they function as gauges, and a lift 6 is placed between the symmetrical body support grooves 2, and the pair of supports 3 is In order to hold the body directly above the center line A and horizontally to the surface of the surface plate 1 by installing it in each body support groove 2 and passing the connecting rod 4 through the opposing support 3, a horizontal reference plane is set. By simply placing the gauge G on the surface plate 1, the amount of strain in each part of the body can be accurately determined in three dimensions, the correction procedure can be properly adopted, and the dimensions of the body, which is always held in a horizontal state and in a constant position, can be accurately determined. It is possible to perform tensile correction using the Roser 12 while measuring the actual value, and the workability and quality are dramatically improved. In addition, since the mounting groove 8 and the guide groove 9 are parallel to the center line A and have a certain distance, they can be used as dimension lines on the horizontal surface plate 1, and accurate body dimension values can be obtained using the gauge G. can be calculated extremely easily. Furthermore, since the two parallel support guide grooves 9 are arranged symmetrically with respect to the center line A, the support stand 18 moving along the guide grooves 9 is always positioned directly above the center line A. The replacement chassis 17 placed on the horizontal body 19 of the support base 18 can be positioned horizontally to the surface plate 1 and directly above the center line A in the same way as the body. By combining them, it becomes possible to recognize the amount of deviation on the body side and repair it.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention, and Fig. 1 is an explanatory diagram when a body installed on a surface plate is being pulled by a roller, Fig. 2 is a plan view of the surface plate, and Fig. 3 is a perspective view when the connecting rod is hung through the opposing support, Figure 4 is a perspective view of the support base, Figure 5 is a longitudinal cross-sectional view taken along line B-B in Figure 4, and Figure 6 is the damaged one. Front view of a car installed on a surface plate,
Figure 7 is a front view of the body after the damaged front part has been melted down and repaired by locally pulling it with a roller, Figure 8 is a front view of the replacement chassis being placed on a support stand. Figure 9 is a side view of the support base on which the replacement chassis is mounted and when it is butted against and separated from the body, Figure 10 is a side view of the replacement chassis connected to the body, and Figure 11 is the support base and FIG. 3 is a plan view of the surface plate when the lower is installed. 1...Surface plate, 2...Body support groove, 3...Support tool, 4...Connection rod, 8...Lower mounting groove,
9...Support guide groove, 10...Lower mounting groove, 1
2...Roser, 18...Support stand.

Claims (1)

[Claims] 1. A surface plate whose surface is uniformly horizontal, and a body support groove and a number of lower mounting grooves that are parallel and symmetrical to the center line of the surface plate are bored in parallel, and
These grooves are kept at a predetermined distance from the center line so that they serve as gauges, a lift is placed between the symmetrical body support grooves, and a pair of supports is installed in each body support groove, facing each other. An automobile repair device characterized in that the body is held directly above the center line and horizontally with respect to the surface of the surface plate by hanging a connecting rod through a supporting tool. 2. A surface plate with a uniform surface that is horizontal and serves as a horizontal reference surface, and a lower mounting groove and support base guide groove that are parallel to the center line of this surface plate and each have a predetermined distance and also serve as a dimension line. body support means for holding the body directly above the center line and horizontally to the surface of the surface plate; and replacement chassis support means for holding the vehicle in place.