JPS6062468A - Polishing device - Google Patents

Abstract

PURPOSE:To make polishing operation for a projecting part in a metal mold or the like ever so easy as well as to aim at improvements in operation efficiency, by pressing a polishing body, having elasticity and holding abrasives on its outer surface, forcibly to a work after being turned round its axis. CONSTITUTION:Both ends of a rotary shaft 2 are rotatably pivotted on each of bearing parts 1a and 1b of a handle 1, while a polishing body 10 to rotate solidly with the shaft 2 is locked to a central part of the shaft 2. And the body 10 consists of a shell body 11 at the inner side, a polishing member 12 at the outer side and air 13 being hermetically sealed in an inside empty space, and the polishing member 12 is stuck with a granular something by means of a bonding agent. In addition, a bevel gear 3 is locked to one end of the shaft 2 and usually engages another bevel gear 5 locked to the end part of a rotary shaft 4 of a motor M. Next, the motor M is rotated, and in a state that the rorary shaft 2 and the polishing body 10 are solidly rotated as one body, an operator grips and end part 1c of the handle 1, and reciprocates it in a longitudinal direction while pressing a projecting part of a metal mold W to be machined whereby the mold W is easily polishable into a uniformly smooth surface.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a sharpening tool used for molding tools, etc.

[Prior art]

For J5 press molds for press-forming copper plates, such as automobile bodies, it is necessary to smooth the protrusions of the mold that come into contact with the steel plate. If the protrusion cap is insufficiently polished, there will be friction between the protrusion of the mold and the copper plate to be press-formed, causing problems such as the steel plate being torn during press-forming.

For this reason, conventionally, abrasive paper or abrasive Y11 was used to make the product.11 people pressed the DIIg paper etc. with the palm of their hands, fingertips, etc. (11(
The abrasive paper was replaced with the mausoleum paper one by one, and the final polishing was done until each surface was flat and almost mirror-like.

Conventional abrasive tools such as abrasive paper and abrasive tools (σ1 polishing tools are made by pressing with the palm of a stone, fingertips, etc., and the pressing force C is tiled)
LSI polishes a large area at once! 'l# could not be done, the worker got tired and the work efficiency decreased, and the force acting on the abrasive paper was not one punch, so it was difficult to raise it evenly to the surface.
It was a difficult task that required a lot of skill. - [Object of the Invention] The present invention overcomes the above-mentioned problems, and provides a method for improving work efficiency.
j] Offering magai is ``1 point.''

[Structure of the invention]

The R111 polishing tool of the present invention has improved elasticity and is polished (
A polishing object in which Δ is held, and the polishing object is 11'+
l + Rotation 1 tql + I to rotate around the line.

[Detailed explanation of the invention] The abrasive object of the present invention has elasticity, and the outer surface has a A commercially available abrasive paper may be adhered to the outer surface of the shell. A J space may be formed inside the abrasive object, or an elastic material such as a sponge may be placed in place of the space. If a space is formed, the space must be filled with a constant fluid or a fluid with a variable D, since the ω11 polishing material needs to have elasticity as a whole. Air is preferable as the fluid.If the cough fluid is the same or constant, the pressure in the space will be constant, but for example, if the valve and drainage pipe are
Adjust the fluid claw as the 4i15 configuration connected to (]0i
If the construction is such that the pressure in the space can be adjusted freely, it can be immediately adapted to the shape and size of the convex portion (or concave portion) of the mold that is the workpiece.

In the natural state of the ω11 polished product (the shape does not matter).

Preferably, it has a cylindrical shape that is easy to rotate.
It may also be shaped like a raghy ball.

The rotary shaft machine 4bS has a rotary shaft (j) for rotating the polishing object 1i11, and the rotary shaft is rotated by a power source of pneumatic pressure (i). The number of rotations can be variable or constant force type. The rotation axis is
Although it is easier to rotate the 01 polishing object by penetrating the axis of the polishing object, it is also possible to do so without passing through the separate VJ.

Also, is that the case? III@Tool, the operator should hold the handle (
[Working method and method (mechanization, automation)
[Effects of the Invention] The polishing tool according to the present invention presses the polishing object against the surface of the workpiece while rotating the polishing object around the axis of the rotating shaft. Since it avoids moving while moving, it is more efficient in machining compared to a method that simply moves by pressing instead of rotating.

Can you improve work efficiency? 1″ goes.

[Implementation row 1] Examples will be explained below.

Embodiment 1 FIG. 1 shows an embodiment of the present invention, in which both ends of a rotating shaft 2 are rotatably supported by bearings 1a and 1b of a handle 1 via bearings (not shown). A polishing object 10 is fixed to the center of the rotating shaft 2 so as to be able to rotate together with the shaft 2.

The (σIIg object 10 is made up of an inner shell 11, an outer polishing member 12, etc., and air 13 sealed in the inner space.The fill I part 12 is made by gluing granular objects with adhesive. It consists of:

In addition, an F wheel 3 is fixed to one end of the rotating shaft 2, and a bevel gear 5 fixed to the end of the rotating shaft 4 of the motor M is constantly meshed with this bevel gear 3. The motor M is fixed to the handle 1.

Here, the rotation 11'll+2, both bevel gears 3 and 5, the motor M, and the rotation shaft 4 of the motor M constitute a ``rotation shaft''.

In such a 4711 configuration, when using the ILl'l polishing tool, avoid rotating the motor M;
2 and the abrasive object 10 are rotated together, the operator holds the handle 1 at 62. : While holding part 1C (Fig. 2) and pressing it against the protrusion of the machining die W, polish by reciprocating the part 1C in the direction perpendicular to the plane of the paper.

Example 2 FIG. 3 shows the second embodiment 1:+lIi example of the present invention=)6(
, are given the same reference numerals as in the first embodiment.

This embodiment differs from the previous embodiment in that the rtll claw object 20
, the m of the air 23 inside the polishing object 20 can be changed, and the motor M is fixed to the identification member and the rotational force is applied using a flexible wire \7/'1'''. As I said, I got to point t-6.

A fish in which the polishing object 20 is composed of an inner shell 21 and an outer fill polishing member 22 is similar to the previous embodiment, but an air passage is formed in the center of the rotating shaft 2. , an air stock 1 [1] is formed in the bearing portion 1a.The chamber 1dl is connected to a pressure air source (not shown) by an L hose 6. The support portion tel of the rotating shaft 2, such as the portion 1a, must be kept airtight.

Applicable? iJ [The explanation for using the polishing tool is almost the same as in the previous example; therefore, the details are omitted. In this example, the air pressure inside the polishing object 20 can be freely changed. Therefore, the optimum pressure can be obtained by changing the air pressure according to the size of the protrusion of the mold, etc., and efficient polishing work can be carried out.

Embodiment 3 FIG. 4 shows a third embodiment of the present invention, in which the axis island of the handle 1△ coincides with the axis of the rotating shaft 2, and the angle (88 ] A fan 2A is attached to one end of the rotating shaft 2, and when compressed air is sent into the handle 1Δ, the fans 2A and O.
The rotating shaft 2 is configured to rotate by Φλ. Furthermore, since the grinding object 3o is fixed to the other end of the rotating shaft 1112 via a key 31, when the rotating shaft 2 rotates, the grinding object 3o also rotates together. The rtll polishing object 30 is circular (1-shaped, for example, a granular material such as carborundum).
It is made of foamed urethane rubber with e-materials dispersed on its surface.

When using the grinding tool, the operator holds the handle 1A, rotates the rotating shaft 2, and moves the rotating outer circumferential surface 30a of the grinding object 3o in a direction perpendicular to the plane of the paper while pressing it against the protrusion of the mold. As a result, the polishing work is 21τ.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the first embodiment of the present invention, FIG. 2 is a front view of the state of use shown in FIG. 1, and FIG. The front view, one side view, and FIG. 4 show the IOi surface [;4] according to the third embodiment of the present invention. 1.1A...Handle 2...Rotary shaft 10, 20. 30...・Stone II II!V!l
Of course fho\hel... Mold special B'

Claims (1)

[Claims] (1) The bullet 11- is on the right side, and an abrasive material is held on at least the outer surface (from the IT polishing object and the rotation tll111 for rotating the polishing object around the axis). (2) The polishing object has a ball-shaped shell made of an elastic material with a sealed space inside, and an omega g held on the outer peripheral surface of the shell.
ε1 With the fluid held in the closed space of the shell, i:l
Scope of QJJ Permissive Requirements The polishing tool according to item 1. (3) The ilf claw portion 4Δ(J) is composed of an adhesive layer injected onto the surface of the shell body and a granular abrasive Ig fixed to the adhesive layer. ω1 polishing tool according to Claim 2. (/I) Elasticity) The lA material is rubber.
Polishing tools listed in section. (5) The second claim in which the shell is shaped like a tennis ball
Polishing tools listed in section. (6) The shell is rugby ball-shaped '41I iiT
The ω1 polishing tool according to claim 2. (7) One abrasive object is ball-shaped, has granular abrasive cloth applied to at least its surface, and is composed of a leg-shaped body made of elastic material No. 31. of (1
)] polishing tools. (8) The surface has surface waves of 114 and 411 including granular abrasive particles.
1. The I+11 polishing tool according to claim 7. (c) The polishing tool according to claim 8, wherein the surface coating layer is made of a separate elastic material. (10) 2 l-shaped tjl for each block made of elastic material
! The polishing tool according to claim 7, which contains f'i 4.71. (11) The rII polishing tool according to claim 7, wherein the ball shape is a tennis ball shape. (12) The term "ball-shaped" means "rugby ball". (13) The elastic material is rubber or soft plastic (T11 (polishing tool) as claimed in claim 7). The ω1 polishing tool according to claim 7, which is made of plastic. (15) ω1 polishing tool according to claim 1, which is cylindrical. ) Rotating shaft machine 4'r't it, the rotating shaft of which passes through the polishing object and is integrally fixed to the polishing object, and is rotated by a power source (see claim 1, which is blind) N1 polishing tool.