JPS5815653A - Surface grinder - Google Patents

Abstract

PURPOSE:To improve the surface grinding work efficiency by forming wheels with a magnet and installing a grinding disk on a dolly and pressing always the grinding disk onto the steel plate flat surface part by a urging means, in the case of a movable plane grinding equipment applicable to flat surfaces of a block of hull etc. CONSTITUTION:A guide wheel 14 and a traveling wheel 15 which are made of magnets are revolved on the bottom plate flat surface part 13 of the material to be worked, and a dolly 11 is shifted. A movable frame 18 is installed shiftably through the compression spring 20 inserted into the screw body 19 mounted on the dolly 11, and the angle sanding machine 22 installed in the movable frame 18 is installed through a plurality of holding members 23, then a pressure is always applied onto the bottom plate flat surface part 13a with a proper force. Shifting of the dolly 11 is performed by rotating the traveling wheel 15 by an air motor 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polishing device used for pre-painting treatment and surface preparation of a flat surface of a steel plate, such as a ship's block (for example, by a power tool construction method).

Conventionally, for example, a boat (block (1)
When performing pre-painting treatment and surface preparation of the flat part (!ayJL) of the bottom plate (2) (!ayJL) and the flat part (side part) of the longitudinal (3) (all), multiple workers manually use angle sanders. However, according to the above method, the work requires multiple workers and the work is done manually, resulting in wasted labor. In addition, each of the above-mentioned tasks required bending over or half-stuck, which caused back pain for workers.Furthermore, since workers used tools directly, they inhaled dust, which was a safety and health issue. There was a problem.

The present invention provides a polishing device that can solve the above problems, and one embodiment thereof will be described below with reference to FIGS. 2 and 3.

(b) is the flat part (to) of the bottom plate (to) of the ship's block (2)
18m), which is equipped with a pair of left and right guide wheels (b) at its lower part, and a traveling device (b) which has a running wheel (2) at the bottom in the center of the other end.
is installed. Note that the running wheels (2) are driven by an air motor. Further, the guide wheels (B) and the running wheels (To) are made of magnets, so that, for example, the trolley (B) can run not only on horizontal surfaces (but also on vertical surfaces). 411F on the top of the trolley (2)
A movable frame that is inserted into the screw body (to) that is extended at the center and biased from above by a compression spring (an example of biasing means) downward, that is, toward the bottom plate plane lB (18 m) side, On the movable frame (to), a plurality of angle sanders (eight in this embodiment) each having a polishing disk (2) for polishing the flat bottom plate portion (18a) are installed alternately and in parallel through holding members. installed. Therefore, the polishing disk (2) of each of these angle sanders (to) is always pressed against the flat surface portion (lambd) of the bottom plate (lam) by the compression spring with an appropriate force.

The shaft is a nut that is screwed onto the upper part of the screw body (2) to hold the compression spring (E) and to adjust its biasing (pressing) force. In addition, the driving source of each of the angle sanders (2) and the traveling device (2) is air,
Therefore, each operating valve (not shown) is attached to the truck (b), and the operating valve is connected to an air supply source via a flexible hose (not shown).

Therefore, after placing the polishing device on the bottom plate flat part (18 m) and opening the operation valve, the cart (b) and each angle sander (2) will operate and automatically
Jm) is polished.

In the above-mentioned embodiments, the horizontal surface of the bottom plate of the ship's block was explained as an example of the flat surface of the steel plate, but it is also possible to polish the side surface, that is, the vertical surface of the longitudinal, for example.

As described above, according to the flat surface polishing apparatus of the present invention, simply by placing the cart on the flat surface of a steel plate and operating, for example, an air operation valve, the flat surface of the steel plate can be automatically polished, thereby improving work efficiency. It is possible to double the amount of work that can be done, and it also relieves the worker of painful work. At the same time, it eliminates the dust inhalation by the worker, which is a disadvantage of the power tool construction method, and has great effects in terms of safety and health.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a block of a ship, FIG. 2 is a plan view of an embodiment of the present invention, and FIG. 8 is a view taken from the 1=1 arrow in FIG. (b) ... Trolley, (2) - - Boat block, (to)
−・Bottom plate, (illm) ・−Bottom plate flat part, (b) −・
Guide wheel, ni) - Running wheel, 輔 -・Travelling device, (to) -
・Movable frame, ■-screw body, so...compression spring (biasing means)
, (2)...Abrasive disc, (2)...Angle sander agent Yoshihiro MorimotoFigure 2Figure 3

Claims (1)

[Claims] ! A movable frame, which is always urged toward the steel plate flat part by a biasing means, is placed on a cart which has a plurality of guide wheels and is movable on the steel plate flat part by a traveling device. A flat surface polishing device, characterized in that an angle sander with a risk of polishing is attached to polish the flat surface of the steel plate, and the traveling wheels of the traveling device and the guide wheels are configured with magnets.