JPH0627321Y2 - Polishing tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a polishing tool that is mounted on a self-profiling polishing machine or the like to perform multifaceted polishing.

(Prior Art) For example, in a conventionally known self-copying surface polishing machine, since the grindstone makes a copying motion according to the unevenness of the surface of the object to be polished, the surface can be continuously polished without breaking the original shape with a constant pressure, There was no problem in polishing a surface to be polished of an abrasive having a side wall surface that is linear with respect to the sliding direction, that is, a corner where two surfaces intersect is linear.

(Problems to be solved by the invention) However, it is complicated to have a curved side wall surface curved in the left-right and up-down directions and a curved flat surface curved in the left-right direction and the up-down direction that intersects along the curved side-wall surface. When polishing the corners of an object to be polished and the surface in the vicinity thereof, it is necessary to give the grindstone a complex multi-directional motion such as vertical and horizontal movement and rotation corresponding to the change in the shape of the surface to be polished. However, it has been a very inconvenient and inefficient work because there has been no suitable polishing tool in the past.

(Means for Solving Problems) The present invention has been made to solve the above problems, and is configured as follows.

The polishing tool of the present invention will be described in detail below with reference to the embodiments shown in the drawings. First, 2 is inserted into a bearing 3 provided with a bearing 5 on its inner surface, and bearings 4, 6 and 7 are provided in the center of the lid case 1. The vertically supported tip (lower) end is the main shaft that has become the eccentric shaft 2a. Spring holes 3a are provided on both left and right sides passing through the center of the bearing 3. The slider 8 is slidably mounted in the left-right direction by interposing a cross roller guide 9 and a coil spring 10 between the bearing main body 3 and the front and rear inner side surfaces 8a and the left and right inner side surfaces 8b. The left and right coil springs 10 have spring holes 3a and left and right inner side surfaces 8 respectively.
It is interposed between b and. Reference numeral 11 denotes a holding body provided with a cross roller guide 13 on the lower surface of the slider 8 and with the eccentric shaft 2a engaged with an engaging groove 12 on the upper surface so as to be slidable forward and backward by the rotation of the main shaft 2. . At the lower part of the holding body 11, there is formed a support plate portion having an upper surface arc guide surface 11a and opposing left and right arc grooves 14 respectively, and a whetstone holder having a whetstone 16 at the tip thereof. The upper part 15 is engaged and pivotally attached to the left and right circular arc grooves 14 so as to be swingable in the front-rear direction by a pin 17.

The embodiment of FIGS. 1 to 4 has been described above. However, in the embodiment of FIGS. 5 and 6, the left and right coils interposed between the bearing body 3 and the left and right inner side surfaces 8b in the above embodiment. One of the springs 10 is omitted to form the coil spring 10 on one side, and the grindstone holder 15 is freely swingable in the front-rear direction and the left-right direction.

That is, the holding body 11 includes the arc guide surface 18a and the arc groove 1
An intermediate holding body 18 having 9 is pivotally attached by a pin 17 so as to be capable of swinging in an arc in the front-rear direction, and a grindstone holder 15 is pivotally attached to the intermediate holding body 18 by a pin 20 so as to be swingable in the left-right direction. In the case of the one side coil spring 10, for example, when the right side coil spring 10 is omitted in FIG.
A stopper is provided on the right side instead of the coil spring 10,
The elastic recovery (extension) of the left coil spring 10 causes the slider 8 to move.
Moves slightly to the left to stop the stopper.

(Operation) Now, the lid case 1 is fixed to a polishing head of a self-copying surface machine, the main shaft 2 is rotated by a hydraulic motor, etc., and an object to be polished having a curved surface to be curved intersecting a curved side wall surface is ground with a grindstone 16. When doing, the grindstone 16 moves as follows. (B) Circular movement of the whetstone 16 corresponding to the vertical shape change of the surface to be polished. (B) When the eccentric shaft 2a of the main shaft 2 rotates, the grindstone 16 integrated with the holder 11 through the cross roller guide 13 horizontally swings (slides) in the front-rear direction. (C) The slider 8 slides corresponding to the shape of the object to be polished, and the grindstone 16 and the holding body 11 slide laterally in the lateral direction. (D) Rotation of the main body including the grindstone 16 by the bearing 5 that the grindstone 16 follows in response to a change in the lateral shape of the surface to be polished.

In addition, the fixed cap nut 2 screwed onto the outer periphery of the lid case 1
In the teaching 1, the slider 8 on the main body side is fixed by screwing it downward during teaching.

(Effect of the Invention) The polishing tool of the present invention is configured as described above, and swings the grindstone 16 in response to the change in the vertical shape of the surface to be polished, and the spindle 2
Horizontal vibration of the grindstone 16 due to rotation of the grinding wheel, horizontal and lateral slide of the grindstone corresponding to lateral and lateral shape changes of the surface to be polished, and grindstone 16 corresponding to lateral and lateral shape changes of the grindstone
Since each of them is rotated, the same as above with the curved side wall surface curved in the left and right direction and the up and down direction as above, the curved surface to be polished is complicated. There is an excellent effect that a suitable polishing process can be stably performed by applying pressure such as lateral pressure.

Further, since the grindstone 16 responds to the change of the shape of the surface to be polished in multiple directions, it is possible to perform complicated polishing efficiently and easily, and to perform a teaching operation easily.

[Brief description of drawings]

The drawings show an embodiment of the polishing tool of the present invention. Fig. 1 is a vertical sectional front view, Fig. 2 is a vertical sectional side view, and Fig. 3 is a bottom view.
FIG. 4 is a transverse plan view, FIG. 5 is a side view of another embodiment, and FIG. 6 is a front view of the whetstone holding portion. 1 ... Lid case, 2 ... Main shaft, 2a ... Eccentric shaft, 3 ... Bearing body, 3a ... Spring hole, 4, 5, 6, 7 ... Bearing, 8 ... Slider, 8a ... Front / rear inner side surface, 8b ... Left / right inner side surface, 9 ... Cross roller guide, 10 ... Coil spring, 11 ... Holding body, 1
1a ... Arc guide surface, 12 ... Engagement groove, 13 ... Cross roller guide, 14 ... Arc groove, 15 ... Grindstone holder, 16 ... Grindstone, 17 ... Pin, 18 ... Intermediate holder, 18a ... Arc guide surface, 19 ... Arc groove, 20 ... Pin, 21 ... Fixed cap nut,

Claims (1)

[Scope of utility model registration request] 1. A main body 2 of an eccentric shaft 2a, the tip of which is inserted vertically through a bearing main body 3 provided with a bearing 5 on the inner surface and is vertically supported in the center of the lid case 1, and the bearing main body 3 and the front and rear inside. Side 8a
And a slider 8 provided with a cross roller guide 9 and a coil spring 10 interposed between the slider 8 and at least one of the left and right inner side surfaces 8b so as to be slidable in the left and right direction, and the slider 8
A holding body 11 provided with a cross roller guide 13 on its lower surface and having the eccentric shaft 2a fitted in the engaging groove 12 so as to be slidable forward and backward by the rotation of the main shaft 2, and an arc at least in the front-rear direction on the holding body 11. A polishing tool comprising a whetstone holder 15 having a whetstone 16 at a tip pivotably pivoted.