JPS5830102B2 - Automotive body assembly line equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for an automobile body assembly line.

In the assembly line production of automobile bodies, it has until now been common practice to transport the bodies along the assembly line on the floor, when work is carried out on all sides of the body except the underside. Was that.

When working below the body, the body was either carried over a pit on the floor of the workshop, or the body was carried suspended on a conveyor.

Assembly work was done from the bottom up.

This "under-up" assembly operation is extremely laborious in terms of mechanical engineering, and it is therefore desirable to limit such assembly operations as much as possible.

An object of the invention is to be able to eliminate the need for floor pits;
It is an object of the present invention to provide a device that can essentially completely eliminate "under-up" assembly operations on floor-based assembly lines.

This object is achieved by the present invention, which comprises: a stand frame that moves on a flat floor; a fixing frame supported by the stand frame; and means for fixing the lower side of the automobile body to the fixing frame;
a tilting means connected to the platform and the fixing frame so that the fixing frame is aligned with the platform and tilted between a horizontal position and a vertical position, the tilting means intersecting the direction of movement of the platform; at least two trolleys movable horizontally on the platform frame by a horizontal drive from one end of the transverse beam to the opposite end of the platform frame; The joint arm is swingably connected to one end of the joint arm at a position between the same end side and the opposite end side, and the other end of the joint arm is swingably connected to the platform frame at the opposite end side, and When the trolley moves on the platform from the one end side to the opposite end, the fixing frame is tilted from the horizontal position to the vertical position, and the fixing frame is tilted from the horizontal position to the vertical position. This is achieved by supporting.

The invention will be explained in more detail below with reference to an example shown in the accompanying drawings.

The apparatus shown in FIGS. 1 and 2 consists of a platform, generally indicated by the reference numeral 10, placed on an assembly line and advanced by chains (not shown). It has two transverse beams 12 adapted to do so.

The beams 12 are interconnected by two transverse beams 14, as shown in FIG.
4 is formed of a U-beam as shown in its end position.

An assembly platform 16 extends along one of the longitudinal sides between the U-beams.

As will be described later, the platform 10 has a frame 18 that can be tilted, and the body can be fixed to this frame as shown in FIG.

The frame 18 has a pair of longitudinal beams 20 interconnected by two transverse frame beams 22 placed directly above the transverse beams 14 of the platform frame.

The frame beam 22 has a Y-shaped support device 24 on which the rear actuation for the wheel suspension of the body (see FIG. 3) and its front frame beam are supported.

Furthermore, both frame beams 22 have a fixing device 26 at one of their outer ends.

As shown in FIG. 3, the locking device 26 is adapted to engage a common jack mounting portion of the body by means of a U-shaped arc 28.

The actual fixation is obtained by tightening the shroud screw 30, whereby the outwardly spring-loaded pin 32 is simultaneously drawn into the component 34 of the fixation device 26.

When the body is not fixed, the pins 32 engage in corresponding holes 36 (FIGS. 1 and 2) in the platform frame 10, thereby preventing the frame 18 from tilting.

A fork 38 welded to the arc 28 is attached to the beam 2
The transverse beam 22 is tightened to laterally fix the arcuate section 28 relative to the cross section 2.

As best seen in FIG. 4, the fixing frame 18
The frame beam 22 of is journaled on the trolley 40 at the end opposite to the end at which the fixing device 26 is located;
This trolley can move along a transverse beam 14 with a platform <10.

The trolley 40 is supported by two sets of wheels, each having three wheels 42, 44, 45, with each set of wheels 42 so as to prevent upward, downward and outward movement of each trolley.
rolls against the horizontal upper side of the beam 14, and the wheels 44
rolls against the horizontal underside of the beam 14, and wheels 46 roll against the vertical inside of the beam 14.

The l-rollies 40 are interconnected by longitudinal beams 48 to prevent them from moving inwardly.

The beam 48 and the nut element 5 constituted as a unit.
0 and located in the center of the beam.

The nut element 50 engages a serrated screw 52 which extends transversely to the platform 10 and is rotatably journalled.

One end 54 of the screw 52 has a hexagonal cross section for engagement with an external motor.

Such motors can be placed along the assembly line in the station where the bodies are tilted.

As the screw 52 is rotated, the beam 48 and with it the trolley 40 are moved transversely to the platform.

In order to achieve the tilting of the fixing frame 18 between the positions shown in FIGS. A pair of jointed arms 5 approximately in the middle of them
6, and the opposite end is the assembly plan]
- connected to the end of the transverse beam 14 facing the form 16;

Although originally only a key would be needed to rotate the screw 52, it would be desirable to use a motor to obtain rapid realignment of the fixation frame.

The heater may be of any type, electric, pneumatic or hydraulic.

Similarly, the motor can be placed movable or stationary on the assembly line.

If a movable motor is used, a pair of perforations 58 in the flange 60 located on the front side of the screw can be used to act as a locking device to prevent the motor casing from rotating instead of the motor shaft. A corresponding pin on the motor is inserted into the borehole so as to do so.

The use of a movable motor has the advantage that the tilting can be performed while the body is continuously advanced on the assembly line.

The embodiments of the present invention are summarized as follows.

1. A stand frame designed to move forward along an assembly line, a fixing frame for fixing the lower side of the automobile body, a fixing device provided on the fixing frame and fixed to the fixing frame of the automobile body, and the stand frame. and a tilting device located between the fixed frame and the fixed frame to enable the fixed frame to be tilted between a horizontal position and a vertical position with respect to the stand frame.

2. The fixing frame has at least two transverse frame beams that cross the assembly line, and the tilting device includes a trolley that can be moved by a drive along the transverse beams in the platform frame, and the tilting device includes a trolley that can be moved along the transverse beams in the platform frame by a drive device, The trolleys are arranged corresponding to the beams, and each trolley supports one end of each transverse frame beam of the fixed frame, and further supports a joint arm that connects one end of the transverse beam of the platform frame to the transverse frame beam of the fixing frame. However, as the trolley moves along the transverse beam of the platform, the stationary frame tilts between horizontal and vertical positions.

3. The drive device includes a transverse screw rotatably arranged on the platform and has a nut element rigidly connected to both trolleys so as to move the trolleys when the screw rotates.

4 The screw is designed to be driveably connected to an external motor.

5 The transverse beams of the platform are formed by U-shaped beams in the shape of their end positions, each beam having a trolley with at least three wheels, one wheel of which is located on the horizontal upper side of the beam. one wheel runs along the horizontal underside of the beam and one wheel runs along the vertical inside of said beam.

5. The device according to item 4, wherein the external motor is movable, characterized in that the device includes a device provided with a torque absorbing connection between the platform frame and the engagement device connected to the motor.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the device according to the invention, with the fixing frame in a horizontal position. FIG. 2 shows the device of FIG. 1 with the fixation frame in a vertical position. FIG. 3 is an enlarged perspective view of a portion of the fixing frame. FIG. 4 is a partially sectional perspective view showing the mechanism for tilting the fixing frame in enlarged size; In the figure, 10... Pa/stand frame, 12... Horizontal beam, 14... Transverse beam, 16...
・Assembly work plant form, 18...Fixing frame, 20...Longitudinal beam, 22...
・Transverse frame beam, 24... Y soft support device, 26... Fixing device, 28... U-shaped arcuate part (fork), 30... Shroud screw,
32...pin, 36...corresponding hole,
38...Archive section, 40...Trolley
42, 44, 46...wheel, 48...
Vertical beam, 50... Nando element, 52...
...Screw, 56...Joint arm,
58...Drilling hole, 60...Flange.

Claims (1)

[Claims] 1. A stand frame that moves on a flat floor, a fixing frame supported by the stand frame, means for fixing the lower side of the automobile body to the fixing frame, and a fixing frame connected to the stand frame and the fixing frame. a tilting means configured to tilt between a horizontal position and a vertical position with respect to the platform frame, and the tilting means horizontally moves from one end side of the transverse beam of the platform frame intersecting the platform movement direction to the opposite end side. It includes at least two trolleys that are movable horizontally on the platform frame by a drive device, and the fixing frame is located between the trolleys at one end of the platform and between the same end and the opposite end thereof. The joint arm is swingably connected to one end of the joint arm, and the other end of the joint arm is swingably connected to the platform frame on the opposite end side, so that the trolley moves over the platform frame from the one end side to the opposite end side. An apparatus for an assembly line for an automobile body, characterized in that when the fixing frame is moved from a horizontal position to a vertical position, the automobile body is supported by the fixing frame positioned on the stand frame at the same position.