KR0138543B1 - Supporting apparatus of vehicle assembly line - Google Patents

Abstract

The present invention relates to a triaxial position adjustable support device adapted to support a vehicle body in an assembly line of the vehicle body.

The three-axis position adjustable support device of the present invention includes a cylinder 3 as a support fixed to the mount 2, a vertical frame 6 mounted on the cylinder rod 13, and a horizontal frame 7 mounted on a line. An X-axis movable in the X-axis direction by a cylinder 21 on a stopper unit 8 provided on the base plate 20 fixed to the top of the vertical frame 6 to restrict upward movement of the vertical frame 6. Fixed position on Y-axis table 18 and Y-axis table 18 which are movable in the Y-axis direction by cylinder 27 on base plate 29 fixed to table 17, X-axis table 17 It consists of a pin clamp unit 40. The cylinders 3, 21 and 27 are pneumatic cylinders.

The three-axis position adjustable support device according to the present invention has the advantages of reducing the production cost, weight reduction of the device, and excellent applicability to various models compared to the prior art.

Description

3-axis adjustable position support

1 is a schematic front view partially showing a configuration of a triaxial position adjustable support device of the present invention,

2 is a strategic right side view for explaining the coupling configuration and operation of the X-axis, Y-axis table of the upper portion of the first support device,

3 is a schematic plan view of the X- and Y-axis tables in the FIG. 1 support device.

* Description of the symbols for the main parts of the drawings *

1: support device 2: mount

3,12,20,27,36: Cylinder 6: Vertical frame

7: horizontal frame 9: guide

10,25,30: Rail 14,34,35,37: Stopper

15: shock absorber 11, 16, 22, 23: bracket

17: X axis table 18: Y axis table

22: cylinder rod 20, 29: base plate

38: proximity switch 39: location pin clamp

40: location pin clamp unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a three-axis position adjustable support device, and more particularly, to a three-axis position adjustable support device that can be applied to various vehicle assembly lines in a vehicle assembly line.

In general, the body assembly line is carried out in a state in which the body is placed in a position suitable for the body assembly work, including the welding work by the welding gun, for this purpose, 4, 6 or 8 support devices are provided, for example, Assembly is performed with support from the bottom of the underbody.

In particular, assembling several types of vehicles in the same assembly line is preferable for the efficiency of the installation, but there is a problem in that the position of the support device is changed accordingly because the specifications of the vehicle body are different for each vehicle type.

In order to solve this problem, conventionally, a plurality of servo motors are used to change the position to a suitable working position in the three axis directions, that is, the X axis in the horizontal direction, the Y axis in the vertical direction, and the Z axis in the vertical height. Servo motors were used, but since these servomotors are expensive and very heavy, the support device also has a high manufacturing cost and has a disadvantage in that weight and volume are large.

The object of the present invention is to solve the shortcomings of the conventional support device, to enable the assembly of several vehicles as a single equipment, the production cost is low, the weight is light, and the three-axis position adjustable support capable of precise positioning To provide a device.

The three-axis position adjustable support device according to the present invention includes a horizontal frame mounted on a mount of the ground, a cylinder as a support fixed vertically to the mount, a cylinder rod of the cylinder, and a bracket at the free end of the cylinder rod of the cylinder. Coupled to the vertical frame movable in the Z-axis direction (vertical) in accordance with the operation of the cylinder rod, mounted on a position facing the vertical frame on the horizontal frame to guide the shangdong of the vertical frame and A stopper unit that prevents upward movement of the vertical frame at a height appropriate to the upper frame, and slidably mounted in the X-axis direction on a base plate fixed through a bracket on the upper end of the vertical frame to a cylinder installed on the base plate. X-axis table moving in the X-axis direction by A Y-axis table slidably mounted on the sub-plate in the Y-axis direction and moved in the Y-axis direction by a cylinder installed on the base plate, and fixed to an upper portion of the Y-axis table to support the vehicle body with a location pin clamp. And a location pin clamp unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view partially showing the configuration of the support device 1 according to the present invention in a dotted line. The support device 1 is supported by a cylinder 3 rigidly fixed to the mount 2 of the ground, and a vertical rod 6 is coupled to the end of the cylinder rod 4 by a bracket 5 so that the cylinder rod As (4) moves forward and backward vertically from the cylinder 3, the vertical frame 6 can move forward and backward vertically upward.

The horizontal frame 7 is also firmly fixed to the mount 2 of the ground to form a body assembly line, and the horizontal frame 7 is provided with a stopper unit 8 at a position facing the vertical frame 6. It is. At the lower end of the stopper unit 8, two guides 9 are provided on both sides, and only one side guide is shown in the drawing. On one side of the vertical frame 6, the rail 10 is coupled to the guide 9 to guide the vertical movement of the vertical frame 6 according to the vertical reciprocating motion of the cylinder rod 4.

At the top of the stopper unit 8, a bracket 11 is provided and at least two stoppers 14 are mounted on the cylinder 12 so that the cylinder rod 13 is downwardly disposed at the end of the cylinder rod 13. Three are shown for use with the three models.

The length in which the three stoppers 14 are extended downward is set in advance to maintain an optimum height according to the vehicle model to be assembled. The number of stoppers 14 can also be increased or decreased depending on the number of models to be assembled on the same line.

The stoppers 14 are movable in the horizontal direction by the horizontal forward and backward operation of the cylinder rod 13 by the cylinder 12, the shock absorber 15 is mounted upward on the lower side of the vertical frame (6). Therefore, when the vertical frame 6 moves vertically upward, the shock absorber 15 comes into contact with one of the stoppers 14 pre-positioned among the stoppers 14, thereby limiting the movement upward of the vertical frame 6. . The shock absorber 15 mitigates the impact when the upward movement of the vertical frame 6 by the stopper 14 is prevented, thereby preventing an excessive impact on the vertical frame 6.

The bracket 16 is fixed to the upper end of the vertical frame 6, the X-axis table 17 is mounted on the bracket 16 in turn, and the Y-axis table 18 is mounted thereon, respectively, in the X-axis and Y-axis directions. It is made to be movable.

FIG. 2 shows only the X-axis and Y-axis tables 17, 18 of FIG. 1 in an enlarged view from the right side to explain the coupling configuration and operation of the X-axis and Y-axis direction tables 17, 18. FIG.

1 and 2, the X-axis table 17 is movably installed on the base plate 20 fixed to the bracket 16 fixed to the upper end of the vertical frame 6, the base plate 20 is equipped with a cylinder 21 and at the end of the cylinder rod 22 (shown in the form of a dashed circle in the figure), a bracket 23 extending integrally from the X-axis table 17 is coupled to the cylinder. The rod 22 and the X-axis table 17 operate integrally.

The X-axis table 17 has a support block 24 integrally formed at both axes, and the support block 24 is slidably mounted to the rail 25 on the base plate 20. In addition, the Y-axis table 18 is fixed to the upper end of the base plate 29 mounted on the X-axis table 17.

The two tubes 26, designated 26, are connected to the cylinder 21 for supply and discharge of compressed air. The Y-axis table 18 which is moved in the X-axis direction by the bracket 23 when the cylinder rod 22 moves forward and backward in the X-axis direction and is fixed to the X-axis table 17 by the base plate 29. Will also move together.

The Y-axis table 18 is also identical to the structure of the X-axis table 17 and is rotated 90 ° only in the arrangement, and is mounted to the X-axis table 17 through the base plate 29, and its moving structure is also the same. It is a principle.

That is, the cylinders 27 indicated by the dotted lines supply or discharge compressed air through the two tubes 28, and the rails 30 on the base plate 29 integrally fixed to the X-axis table 17. Two are provided on both sides and the support block 31 slides thereon, and the support block 31 is integrally coupled with the Y-axis table 18 and attached to the bracket 33 connected to the rod end of the cylinder 27. As a result, the Y-axis table 18 moves forward and backward integrally with the cylinder rod.

3 is a schematic plan view of the X- and Y-axis tables 17, 18 of FIG.

The X-axis direction movement of the base plate 29 for the Y-axis table 18 coupled to the X-axis table 17 is limited by the stopper 34 shown in FIG. 3, before and after the Y-axis table 18. The moving movement is limited by the stopper 35 respectively. In addition to this, if necessary, the stopper 37 may be further connected to the rod of the cylinder 36, which is indicated by a dotted line, according to the assembly vehicle model.

The control of the cylinder rods when the X and Y axis tables 17 and 18 are moved is controlled by the proximity switches 38 shown in FIGS. 2 and 3, respectively. The operation is detected and performed by supplying or discharging the compressed air to the cylinders 21 and 27.

The Y pin table 18 is fixed with a location pin clamp unit 40 in which a location pin clamp 39 is inserted into a location hole provided in a predetermined portion of the vehicle body to be assembled to support the vehicle body.

The cylinders 3, 12, 21, 27, and 36 used in the present invention are preferably pneumatic cylinders in terms of cost and light weight of the device.

According to the present invention, the adjustment in the Z-axis direction raises the vertical frame 6 by the cylinder 3, at which time select the stopper 14 of the height set according to the assembly model to increase the vertical movement of the vertical frame 6 It is performed on a limited basis.

The adjustment of the X-axis and Y-axis directions is performed by the cylinder 21 by the bracket 23 in the operation of the cylinder 21 controlled by the proximity switch 38 in the X-axis table 17 fixed to the upper end of the vertical frame 6. The X-axis table 17 connected to the (22) slides, thereby moving the base plate 29 having the Y-axis table 18 mounted thereon in the X-axis direction, thereby causing the Y to be moved by the proximity switch 38. The X axis direction position of the axis table 18 is detected to control the cylinder 27 for moving the Y axis table 18 so that the location pin clamp 39 mounted thereon is moved to the X, Y and Z axes. It is precisely adjusted.

Claims (2)

A support apparatus mounted on an assembly line of a vehicle body and capable of positioning the vehicle body in three axial directions, A horizontal frame (7) installed on the mount (2) of the ground, A cylinder 3 as a support fixed perpendicular to the mount 2 and a cylinder rod 4 of the cylinder 3, A vertical frame 6 coupled to the free end of the cylinder rod 4 of the cylinder 3 by a bracket 5 and movable in the Z-axis direction (vertical) according to the operation of the cylinder rod 4; It is mounted on the horizontal frame (7) facing the vertical frame (6) to guide the shanghai movement of the vertical frame (6) and the upward movement of the vertical frame (6) at a height suitable for each vehicle model Stopper unit 8 for restraining restriction, X-axis by a cylinder 21 mounted on the base plate 20 is slidably mounted in the X-axis direction on the base plate 20 fixed to the upper end of the vertical frame (6) through the bracket 16 X-axis table 17 moving in the direction, Y-axis that is slidably mounted in the Y-axis direction on the base plate 29 fixed to the upper end of the X-axis table 17 and moved in the Y-axis direction by the cylinder 27 installed on the base plate 29. Table 18, And a location pin clamp unit (40) fixed to the top of the Y axis table (18) to support the vehicle body with its location pin clamp (39). The method of claim 1, The stopper unit 8 includes at least two stoppers 14 in which the downward length thereof is set differently to suit the position at which the vertical frame 6 is to be lifted so as to limit the amount of lift of the vertical frame 6 corresponding to the vehicle to be assembled. And the stopper 14 corresponding to the corresponding vehicle type among the stoppers 14 to horizontally move the stoppers 14 to the position where the vertical frame 6 is blocked. And a cylinder (12) provided at an end and fixed to one side of the stopper unit (8).