JPH0748348Y2 - Inverting table for assembly work of automobile body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a reversing table for parts assembly work of an automobile body for reversing the car body when assembling parts under the floor of the body. Regarding

(Prior Art) In general, examples of parts to be assembled to the underfloor portion of an automobile body include a fuel tank, an exhaust pipe, a silencer, an exhaust gas purifying device, and a suspension. When assembling these parts to the underfloor portion of the vehicle body, it has been conventionally done, for example, in Japanese Patent Laid-Open No.
As can be seen in Japanese Patent No. 3967, there is known one in which one side portion of a vehicle body holding frame that holds the vehicle body is used as a fulcrum to raise the other side portion. As a result, the vehicle body held by the vehicle body holding frame is tilted together with the vehicle body holding frame so that the underfloor portion stands upright, and the parts are assembled from the side facing the underfloor portion. The work of assembling the parts can be easily performed without working in an unreasonable posture in which the mounted vehicle body goes upward from below the floor.

However, since one side portion of the vehicle body holding frame that holds the vehicle body is used as a fulcrum to raise the other side portion, the device becomes complicated and large. Therefore, there is an inconvenience that the worker cannot secure a sufficient space for working.

Further, in particular, when assembling a suspension or the like, it is desirable to turn over the vehicle body, turn the underfloor portion upward, and perform the assembling work from above. However, in a device that raises the vehicle body holding frame that holds the vehicle body by raising one side portion of the vehicle body holding frame, it is difficult to turn the vehicle body and turn the underfloor portion upward.

Therefore, a pair of support columns are provided on both ends of the vehicle body in the longitudinal direction, and the vehicle body is supported from the front and rear sides by a pair of rotatable clamps provided on the same axis so as to face the support columns,
It is conceivable to turn over the body by turning the clamp. As a result, the device can be simplified, a working space can be sufficiently secured, and further, it becomes possible to turn over the vehicle body and turn the underfloor portion upward.

However, since the vehicle body is supported only by the clamp, and further the vehicle body is inverted by rotating the clamp, a considerable torque is applied to the vehicle body. As a result, the vehicle body may be adversely affected by deformation due to twisting and the molding accuracy of the vehicle body may be deteriorated.

(Problems to be Solved by the Invention) By solving such inconvenience, the present invention is capable of reversing the vehicle body without impairing the molding accuracy of the vehicle body, and further, is a part of an automobile body capable of freely setting the reversing angle. The purpose is to easily provide a structure for a reversing table for assembly work.

(Means for Solving the Problem) In order to solve such inconvenience, the present invention provides a reversing stand which holds an automobile body in a reversible manner and reverses the vehicle body when assembling parts to the underfloor portion of the vehicle body. A pair of stanchions provided at both ends in the longitudinal direction of the automobile body, bearings provided on each of the stanchions on the same axis, and a pair of rotating shafts rotatably supported by both bearings. A vehicle body holding frame which is provided at both ends and is provided so as to extend between both columns, and which holds a vehicle body, and when the vehicle body is placed on the vehicle body holding frame, a side sill below the vehicle body from inside A vehicle body receiving portion that locks and fixes the vehicle body to the vehicle body holding frame, and engages and disengages with openings formed in the front and rear ends of the vehicle body holding frame and formed in the front beam and the rear beam of the vehicle body, respectively. Locking means to lock freely A worm wheel provided on at least one of the two rotary shafts, and a rotary drive unit including a worm that meshes with the worm wheel.

(Operation) According to the present invention, the vehicle body is first placed on the vehicle body holding frame by the above means. Then, the vehicle body is fixed by the vehicle body receiving portion and the locking means provided on the vehicle body holding frame and held by the vehicle body holding frame. That is, the vehicle body receiving portion restricts the lateral movement of the vehicle body during rotation by locking the side sill of the vehicle body, and the locking by the vehicle body receiving portion is from the inside of the side sill during rotation. The state of being fixed to the vehicle body holding frame is maintained without causing the vehicle body to be distorted due to the influence of the load. Further, the locking means locks the opening formed in the front beam provided at the front end of the vehicle body and the opening formed in the rear beam provided at the rear end of the vehicle body, whereby The movement in the front-rear direction and the up-down direction is restricted, and the movement is surely held on the vehicle body holding frame.

A pair of rotating shafts extending on the same axis line at the front and rear ends of the vehicle body holding frame are supported by the bearings of the both columns, and the whole body is rotatable.

Next, the worm is rotated by the rotation driving means, and the worm wheel meshed with the worm is rotated. The worm wheel rotates the vehicle body holding frame via the rotation shaft. As a result, the vehicle body holding frame is rotated by the rotational torque transmitted from the worm wheel to the rotating shaft, and the vehicle body held by the vehicle body holding frame is inverted.

The meshing of the worm and the worm wheel makes it possible to arbitrarily determine the stop position of the rotation of the vehicle body holding frame.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings.

1 is a plan view showing the apparatus of the present embodiment, FIG. 2 is a side view of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a rear end of FIG. It is a side view.

Reference numeral 1 denotes a front strut provided on the front end side in the longitudinal direction of the vehicle body a, 2 denotes a rear strut provided at the rear end side of the vehicle body a facing the front strut 1, and 3 denotes a front portion. 1 shows a vehicle body holding frame that holds a vehicle body a provided between a rear column 1 and a rear column 2.

As shown in FIGS. 1 and 2, the front support column 1 is vertically fixed to a pedestal 4, and a front bearing 5 is provided at the upper end of the front support column 1.

Similar to the front strut 1, the rear strut 2 is vertically fixed to a pedestal 6, and a rear bearing 7 located on the same axis as the front bearing 5 is provided at an upper end of the rear strut 2. Has been.

As shown in FIGS. 1 and 2, the vehicle body holding frame 3 is provided with a vehicle body mounting portion 8 on which the vehicle body a is mounted. The vehicle body mounting portion 8 includes the vehicle body mounting portion 8 shown in FIGS. When the vehicle body a is placed as shown in FIG. 3, the vehicle body a serves as vehicle body fixing means.
A vehicle body receiving portion 9 is provided for locking the lower side sill b from the inside to fix the vehicle body a while suppressing the lateral movement of the vehicle body a. The vehicle body receiving portion 9 is formed of urethane resin or the like into a shape corresponding to the side sill b of the vehicle body a.
As a result, the vehicle body receiving portion 9 has a cushioning effect and can be placed on the vehicle body placing portion 8 without damaging the vehicle body a.

In addition, the front beam c and the rear beam d are attached to the vehicle body a in which parts are assembled to the underfloor portion by the present embodiment.
An opening e is formed in each. In addition to the vehicle body receiving portion 9, the vehicle body holding frame 3 serves as a vehicle body fixing means.
A locking means 10 is provided at a position corresponding to the opening e so as to be releasably locked in the opening e. The locking means 10 is
It is provided with a cylinder 11 and a locking pin 12 which can be projected by the cylinder 11. When the vehicle body a is placed on the vehicle body placing portion 8, the locking pin 12 projects toward the vehicle body a and is inserted into the opening e to fix the vehicle body a to the vehicle body holding frame 3. In this way, the vehicle body a is not only restrained from moving in the front-rear direction but also restraining from moving in the up-down and left-right directions by the vehicle body fixing means including the locking means 10 and the vehicle body receiving portion 9. Thus, it is securely fixed to the vehicle body holding frame 3 integrally. Therefore, the vehicle body a held by the vehicle body holding frame 3 is, as described later,
There is no deformation due to twisting during rotation, and the molding accuracy of the vehicle body a is not impaired.

Further, a front rotary shaft 13 and a rear rotary shaft 14 located on the same axis are provided at the front and rear ends of the vehicle body holding frame 3. The front rotary shaft 13 and the rear rotary shaft 14 are rotatably supported by the front bearing 5 and the rear bearing 7.

At the rear end of the rear rotary shaft 14, a rotary drive means 15 for driving the rear rotary shaft 14 to rotate the entire body holding frame 3 is connected. The rotation driving means 15
As shown in FIG. 4, the motor 17 provided on the mount 16 of the rear support 2, the worm 19 provided at the tip of the rotary shaft 18 of the motor 17, and the worm 19 mesh with each other. A worm wheel 20 to which the rotation of the motor 17 is transmitted. The rotation shaft of the worm wheel 20 is coaxial with the rear rotation shaft 14. In this way, the rotation driving means 15 of the present embodiment rotates the vehicle body holding frame 3 via the worm wheel 20 that meshes with the worm 19.

Although not shown, the present embodiment device having the above configuration is used in an automobile manufacturing line or the like. As an example, the vehicle body a that has undergone the painting process is conveyed by a hanger (not shown), and the vehicle body a is placed on the vehicle body mounting portion 8 of the vehicle body holding frame 3 as shown in FIGS. 1 and 2. The side sill b of the vehicle body a is locked by the provided vehicle body receiving portion 9 and placed on the vehicle body placing portion 8.

Then, the locking pin 12 of the locking means 10 is attached to the cylinder 11
And is inserted into the openings e formed in the front beam c and the rear beam d of the vehicle body a.

Next, the motor 17 of the rotation driving means 15 is rotated. As a result, the vehicle body holding frame 3 rotates, and the vehicle body a held by the vehicle body holding frame 3 rotates. And
A fuel tank, an exhaust pipe (not shown),
The vehicle body a is inverted and stopped up to a position where various parts such as a silencer, an exhaust gas purifier, and a suspension can be easily attached. As described above, the vehicle body a is reversed by the rotation of the vehicle body holding frame 3, so that the driving force at the time of rotation does not directly affect the vehicle body a. Also,
Since the rotation driving means 15 is constituted by the engagement between the worm 19 and the worm wheel 20, the rotation of the vehicle body holding frame 3 can be stopped only by stopping the rotation of the motor 17 at an arbitrary position. . This allows
The vehicle body a held by the vehicle body holding frame 3 can be inverted to a state in which it is easy to work.

(Effects of the Invention) As is apparent from the above, according to the present invention, the vehicle body is rotated to invert it, so that the structure of the device is simplified and a sufficient working space can be secured. Further, the reversal of the vehicle body is performed through the rotation of the vehicle body holding frame, and the vehicle body is locked from the inside of the side sill by the vehicle body receiving portion to prevent distortion due to the influence of the load during rotation. In this state, the movement in the left-right direction is restricted, and the front beam and the rear beam are locked by the locking means to restrict the movement in the front-rear direction and the vertical direction. It is possible to prevent distortion of the locking position of the vehicle body receiving portion and the locking means due to the load of the vehicle body at this time, deformation of the vehicle body due to twisting of the entire vehicle body, and the like.

Further, since the vehicle body holding frame is rotated through the meshing of the worm and the worm wheel and the stop position can be arbitrarily determined, the vehicle body holding frame is inverted to the optimum position for assembling parts to the underfloor portion of the vehicle body. Can be made.

Therefore, according to the present invention, it is possible to reverse the vehicle body without impairing the molding accuracy of the vehicle body, and further, the reversing table for assembling the parts of the automobile body, which can freely set the reversing angle,
The structure can be easily provided.

[Brief description of drawings]

1 is a plan view showing the apparatus of the present embodiment, FIG. 2 is a side view of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a rear end of FIG. It is a side view. 1 ... front strut 2 ... rear strut 3 ... vehicle body holding frame 5 ... front bearing 7 ... rear bearing 9 ... vehicle body receiving portion 10 ... locking means 13 ... front rotary shaft 14 ... Rear rotary shaft 15 …… Rotation drive means 19 …… Warm 20 …… Warm wheel a …… Vehicle body b …… Side sill c …… Front beam d …… Rear beam e …… Opening

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-132396 (JP, A) JP-A-63-77644 (JP, A) Jikken-63-22023 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. An inversion stand for holding an automobile body in a reversible manner and reversing the vehicle body when assembling parts to the underfloor portion of the vehicle body, which are provided at both ends in the longitudinal direction of the automobile body. A pair of stanchions, a bearing provided on each of the stanchions on the same axis, and a pair of rotating shafts rotatably supported by both bearings are provided at both ends and are provided so as to extend between both struts. A vehicle body holding frame on which the vehicle body is placed and held, and when the vehicle body is placed on the vehicle body holding frame, the vehicle body is fixed to the vehicle body holding frame by locking the vehicle body holding frame from the inside to a side sill below the vehicle body A vehicle body receiving portion, locking means that is provided on the front end side and the rear end side of the vehicle body holding frame, and that is releasably engaged with openings formed in the front beam and the rear beam of the vehicle body; The wheel provided on at least one of the Muhoiru and, reversing stand for automotive body parts assembling work, characterized in that a rotary drive means comprising a worm meshing with the worm wheel.