JP3983428B2 - Rotating device for anti-rust coating on differential flange surface - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece clamping device.
[0002]
[Prior art]
Rust prevention wax is applied to the differential flange surface that connects the differential gear and the propeller shaft in the assembly line of the automobile that is transported by the slat conveyor. The antirust wax is applied to the differential flange surface by rotating the differential flange with a spray gun of an application device. As shown in FIGS. 6 to 8, the conventional apparatus for rotating the differential flange has a traveling wheel 21 in a pit 20 provided on a floor where the slat conveyor 1 is laid, and moves synchronously with the traveling of the slat conveyor 1. A carriage 22 is provided, and a first elevator 23 and a second elevator 29 are arranged side by side in the traveling direction of the carriage 22 on the carriage 22, and the first elevator 23 moves up and down on the guide rod 25. The first elevating cylinder 24 is guided so as to be raised and lowered. Further, the second lifting platform 29 is also guided by the guide rod 31 so as to be lifted and lowered by the second lifting cylinder 30.
[0003]
On the first elevator 23, a rocker receiver 26 for supporting the rocker of the vehicle 2 and lifting the vehicle 2 is guided by a guide rail 27 and can be shifted in the vehicle width direction by a rocker receiving shift cylinder 28. On the second elevator 29, a rotation made of a belt 32 that rotates endlessly between a pair of pulleys 35 as shown in FIG. 8 in order to contact the rear wheel 4 of the vehicle 2 and drive the rear wheel 4 to rotate. The device is guided by a guide rail 33 and can be shifted in the vehicle width direction by a rotating device shift cylinder 34.
[0004]
As shown in FIG. 6, the above-mentioned conventional apparatus lifts the vehicle 2 conveyed by the slat conveyor 1 by the rocker receiver 26 of the first lifting / lowering base 23, and further attaches the belt 32 of the rotating device of the second lifting / lowering base 29 to the rear wheel. 4 rotates the rear wheel 4 to rotate the differential flange by rotating the propeller shaft, and the anti-rust wax is applied to the surface of the differential flange by the spray gun of the coating device. It is lowered onto the slat conveyor 1 and conveyed again to the next step.
[0005]
[Problems to be solved by the invention]
The above-mentioned conventional apparatus requires the operation of raising and lowering the vehicle 2 from the slat conveyor 1 in order to rotate the rear wheel and rotate the differential flange in the coating process by the vehicle conveyed by the slat conveyor 1, which is a large scale. Complex equipment is used, production and installation work is long, and expensive equipment costs are required.
[0006]
An object of the present invention is to provide a rotation device for rust flange surface anticorrosion coating in which a rear wheel is rotated to rotate a differential flange while the vehicle is being conveyed by a slat conveyor.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a fixed plate that is moved forward and backward by an actuator with respect to a slat conveyor that conveys a vehicle is arranged on the side of the slat conveyor, and the fixed plate that has advanced on the slat conveyor is placed over the fixed plate. The rear wheel is rotated by passing only the rear wheel, the differential flange is rotated by the rotation of the rear wheel, and the differential flange surface is rust-proofed by the spray gun of the coating device.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a slat conveyor that conveys a vehicle 2. The front wheel 3 and the rear wheel 4 of the vehicle 2 are placed on the slat conveyor 1, but the front wheel 3 is restrained by a front wheel stopper 5 and movement of the vehicle 2 in the front-rear direction is restricted.
[0009]
In the assembly line of the vehicle conveyed by the slat conveyor 1, the differential flange surface 14a to which the rust preventive wax is applied is a differential flange 14 that couples the differential gear 12 and the propeller shaft 13 as shown in FIGS. When wax is applied to the differential flange surface 14 a of the differential flange 14, the differential flange 14 is rotated and applied by the spray gun 15 of the coating device 6 as shown in FIG. 4.
[0010]
Therefore, in the present invention, as shown in FIG. 1, as a means for rotating the differential flange 14, the vehicle 2 is transported by the slat conveyor 1 to the application process part where the application device 6 is arranged in the assembly line of the vehicle by the slat conveyor 1. A rotating device 7 for rotating the rear wheel 4 by use is provided on the side of the slat conveyor 1.
[0011]
The rotating device 7 advances and retreats the fixed plate 8 in a direction orthogonal to the moving direction of the slat conveyor 1 in a plane, and guides and drives the guide 9 so as to be positioned on the slat conveyor 1 and outside the slat conveyor 1. A rod 11 that moves forward and backward by a cylinder 10 is coupled to the fixed plate 8.
[0012]
The operation of the present invention will be described with reference to FIG. As shown in FIG. 5A, when the vehicle 2 enters the application process part by the slat conveyor 1, the antirust wax is applied to the lower half of the differential flange surface 14 a of the differential flange 14 by the spray gun 15. At this time, the fixed plate 8 of the rotating device 7 is in a retracted position outside the slat conveyor 1.
[0013]
As shown in FIG. 5 (b), when the front wheel 3 passes through the part of the rotating device 7, the fixed plate 8 of the rotating device 7 is advanced onto the slat conveyor 1 by the drive cylinder 10. Then, the rear wheel 4 of the vehicle 2 being conveyed by the slat conveyor 1 rides on the fixed plate 8 and passes as shown in FIG. At this time, since the vehicle 2 is restricted from moving in the front-rear direction by the restraint of the front wheel 3 by the front wheel stopper 5 on the slat conveyor 1, the rear wheel 4 and the fixed plate 8 are in a relative movement relationship. 4 passes while rotating on the fixed plate 8.
[0014]
The propeller shaft 13 is rotated by the rotation of the rear wheel 4, and when the differential flange 14 is rotated halfway, the remaining lower half of the differential flange surface 14 a is coated with a rust preventive wax by the spray gun 15.
[0015]
After the rust preventive wax is applied to the entire surface of the differential flange surface 14a as described above, as shown in FIG. 8 is moved back to the original position outside the slat conveyor 1.
[0016]
In the drawing, the rotation device 7 is arranged on one side of the slat conveyor 1 and is an embodiment in which one side of the rear wheel 4 is rotated. It is also within the scope of the present invention that both left and right rear wheels are rotated on both sides.
[0017]
【The invention's effect】
As described above, according to the present invention, only the rear wheel is rotated using the transport movement of the vehicle by the slat conveyor by the fixed plate moving forward and backward on the slat conveyor, and the differential flange is rotated by the rotation of the tef flange based on the rotation of the rear wheel. Since the rust-proof wax is applied to the entire surface, the rust-proof wax is applied to the entire surface of the differential flange surface in the state of transporting the vehicle by the slat conveyor without raising or lowering the vehicle from the slat conveyor. This eliminates wasteful operations for raising and lowering the vehicle, and an efficient application work is obtained.
In addition, the structure is simple, the production and installation period is short, and it can be provided at low cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of the present invention. FIG. 2 is a perspective view of a differential flange. FIG. 3 is an exploded perspective view of a differential flange. FIG. 6 is a cross-sectional view showing a lift-up state of a conventional device. FIG. 7 is a cross-sectional view showing a rotation state of the conventional device. FIG. 8 is a view taken along an arrow A in FIG.
DESCRIPTION OF SYMBOLS 1 Slat conveyor 2 Vehicle 3 Front wheel 4 Rear wheel 5 Front wheel stopper 6 Coating device 7 Rotating device 8 Fixed plate 9 Guide 10 Drive cylinder 11 Rod 12 Differential gear 13 Propeller shaft 14 Differential flange 14a Differential flange surface 15 Spray gun

Claims (1)

A fixed plate that moves forward and backward by an actuator to the slat conveyor that conveys the vehicle is arranged on the side of the slat conveyor, and only the rear wheel passes over the fixed plate that has advanced on the slat conveyor to rotate the rear wheel. A rotating device for rust-proof coating of a diff flange surface, wherein the diff flange is rotated by rotating the rear wheel, and the diff flange surface is rust-proofed by a spray gun of a coating device.

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