JP2831088B2 - Grinding fluid nozzle linked to the wheel front cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a grinding fluid nozzle linked to a front cover of a grinding wheel in a grinding machine.

<Conventional Technology> A grinding machine is provided with a grinding fluid nozzle for supplying a grinding point to a grinding point of a workpiece processed by a grindstone. As shown in FIG. 3, the grinding wheel cover main body 3 that covers the upper part of the grinding wheel 1 that is rotated by the grinding wheel shaft 2 is attached to the grinding wheel front cover 4 that covers the upper front of the grinding wheel 1 by the support shaft 5. And an appropriate number of grinding fluid nozzles 11 according to the width of the grindstone 1 are attached to the grindstone front cover 4, and an actuator for adjusting the position of the grindstone front cover fixed on the grindstone cover body 3. The upper end of the grindstone front cover 4 is pivotally connected by a pivot 8 to an operating shaft 7 that moves forward and backward. In order to properly manage the gap between the grindstone 1 and the front cover 4 of the grindstone in accordance with the reduction in the diameter of the grindstone 1, the rotation of the front grindstone cover 4 is corrected by the operation of the actuator 6; And the grinding fluid nozzle 11 is moving integrally therewith.

<Problem to be Solved by the Invention> A grinding fluid nozzle 11 attached to the grinding wheel front cover 4
As shown in FIG. 3, when the whetstone 1 has the minimum diameter, the work b
When the direction of the grinding fluid nozzle 11 is adjusted so that the grinding fluid is applied to the grinding point, the grinding wheel 1 is deviated from the grinding point of the work a at the maximum diameter and is applied to the outer diameter surface of the work a. Since the supply of the liquid is not sufficiently obtained, inaccuracy due to grinding burn and inconvenience of scattering of the grinding liquid due to rotation of the grinding wheel 1 occur.

However, a manual adjustment mechanism is attached to the grinding fluid nozzle 11 so that the grinding fluid nozzle 11 can be manually adjusted so that the grinding fluid is appropriately applied to the grinding point as needed when the rotation of the front grinding wheel cover 4 is corrected. However, there is a problem that manual adjustment cannot be performed when entering the production line.

An object of the present invention is to control the position of the grinding fluid nozzle 11 in conjunction with the rotation correction of the front cover of the grindstone so that the grinding fluid always properly falls on the grinding point.

<Means for Solving the Problems> According to a feature of the present invention for achieving the above object, the upper end of the grinding fluid nozzle is pivotally connected to the operating shaft of the actuator, and the tip of the grinding fluid nozzle is always ground. The grindstone front cover and the grinding fluid nozzle are connected to each other via a cam mechanism so as to be directed to a point. A cam member having a cam groove provided on one of the grinding wheel front cover and the grinding fluid nozzle, wherein the cam mechanism has a tilt angle in a rotation direction of the grinding wheel front cover;
It comprises a front wheel cover and a cam follower provided on the other side of the grinding fluid nozzle and slidably guided in a cam groove of a cam member.

<Operation> With the above configuration, the grinding fluid nozzle pivotally mounted coaxially with the operating shaft when the grindstone front cover is rotated by the axial movement of the operating shaft of the actuator, and the grinding fluid front cover is supported by the cam follower as a fulcrum. While rotating in the same direction, the cam follower is guided along the inclined surface of the cam groove of the cam member fixed to the grinding wheel front cover, so that the attitude of the grinding fluid nozzle is controlled to always face the grinding point. I have.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. First
In FIG. 2 and FIG. 2, 1 is a grindstone, 2 is a grindstone shaft, 3 is a grindstone cover body that covers the upper side of the grindstone 1, and 4 is a grindstone 1
Is a whetstone front cover that covers the upper front of the whetstone, and is supported by the whetstone cover body 3 by a support shaft 5 so that the whetstone 1 can rotate in the radial direction. Reference numeral 6 denotes an actuator for adjusting the position of the front cover of the grindstone provided on the grindstone cover main body 3, and reference numeral 7 denotes an operation shaft thereof. The operating shaft 7 moves forward and backward in an axial direction orthogonal to the axis of the grinding wheel shaft 2.

The grindstone front cover 4 rotatably supported by the grindstone cover main body 3 by a support shaft 5 is pivotally connected to an elongated hole formed in the operation shaft 7 by a pin 8 via a connecting member 16.

A cam member 10 having a cam groove 9 having an inclination angle in the rotation direction of the grindstone front cover 4 is fixed to both sides of the grindstone front cover 4.

11 is a grinding fluid nozzle. The number of the grinding fluid nozzles 11 is fixed to the pipe 14 to which the grinding fluid supply hose 18 is connected, and an appropriate number (two in the embodiment) according to the width of the grinding wheel 1 is used.
Are provided in parallel.

The grinding fluid nozzle 11 has brackets 17 fixed on both sides of the pipe 14. A cam follower 13 fixed to the bracket 17 is slidably guided by the cam groove 9 of the cam member 10, so that a grinding wheel front cover is provided. 4 and more. Also,
A connecting member 15 protrudes upward from the pipe 14,
The connecting member 15 is pivotally attached to the operating shaft 7 of the actuator 6 by a pin 12 at a position forward of a pivoting point of the connecting member 16 of the front grinding wheel cover 4.

 Next, the operation of the above configuration will be described.

In FIG. 1, the grinding wheel front cover 4 and the grinding fluid nozzle 11
The solid line shows the state when the grindstone 1 has the minimum diameter, and the chain line shows the state when the grindstone 1 has the maximum diameter.

It is the maximum diameter when the whetstone 1 is replaced with a new one. Therefore, the grindstone front cover 4 is provided with the actuator 6 so as to maintain an appropriate gap with the grindstone 1 corresponding to the largest diameter grindstone 1.
The operating shaft 7 is positioned at the retreat end, and as shown by the chain line in FIG. At this time, the upper end of the grinding fluid nozzle 11 is pulled by the operating shaft 7, the cam follower 13 is used as a fulcrum, and the cam follower 13 contacts the lower end of the cam groove 9 of the cam member 10 to be controlled to a tilting posture. Grinding fluid nozzle 11
Is positioned so that the grinding fluid from the surface appropriately applies to the grinding point of the workpiece a by the whetstone 1 having the maximum diameter.

The diameter of the grindstone 1 is gradually reduced by work grinding,
The minimum diameter is obtained as shown by the solid line in the figure. Along with this, the grindstone front cover 4 is gradually corrected and rotated by the operation of the actuator 6 in order to properly maintain the gap with the grindstone 1. this is,
The forward movement of the operating shaft 7 causes the grindstone front cover 4 to rotate counterclockwise in FIG. 1 around the support shaft 5 as a fulcrum.

The grinding fluid nozzle 11 also follows the rotation of the grinding wheel front cover 4 with the cam follower 13 as a fulcrum, and the cam follower 13 slides up the slope of the cam groove 9 with an up-slope along with the advancing axial movement of the operating shaft 7 to perform grinding. The attitude of the liquid nozzle 11 is controlled so that the grinding liquid always falls on an appropriate grinding point. Therefore, as shown by the solid line in FIG.
Is reliably supplied to the grinding point of the work b at that time.

<Effect of the Invention> As described above, according to the present invention, the upper end of the grinding fluid nozzle is pivotally attached to the operating shaft of the actuator, and the grinding wheel front cover and the grinding fluid nozzle are continuously connected via the cam mechanism. The attitude of the grinding fluid nozzle is automatically controlled so that the grinding fluid is properly supplied from the maximum diameter to the minimum diameter of the grinding wheel to the grinding point in conjunction with the rotation of the grinding wheel front cover, stabilizing machining accuracy. This has the effect of preventing the grinding fluid from scattering.

[Brief description of the drawings]

FIG. 1 is a side view of the present invention, FIG.
FIG. 3 is a conventional side view. 1 ... grinding stone, 3 ... grinding stone cover body, 4 ... grinding stone front cover, 5 ... spindle, 6 ... actuator, 7 ... operating shaft, 8 ... pin, 9 ... cam groove, 10 ... Cam members, 11 ...
... grinding fluid nozzle, 12 ... pin, 13 ... cam follower.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Kensaburo Oishi 1-1-1, Asahi-cho, Kariya-shi, Aichi Prefecture Inside Toyota Koki Co., Ltd. (72) Inventor Shoichi Sano 1-1-1, Asahi-cho, Kariya-shi, Aichi Prefecture Inside Machine Co., Ltd. (72) Inventor Makoto Nonoyama 1-1-1 Asahi-cho, Kariya City, Aichi Prefecture Inside Toyota Machine Works Co., Ltd. (56) References JP-A-57-173446 (JP, A) JP-A-3-202274 ( JP, a) JitsuHiraku Akira 50-3187 (JP, U) JitsuHiraku Akira 55-142254 (JP, U) JitsuHiraku flat 3-96175 (JP, U) (58 ) investigated the field (Int.Cl. ^6, (DB name) B24B 55/02-55/05

Claims (2)

(57) [Claims] 1. A grindstone front cover which is rotatably supported in a radial direction of a grindstone on a grindstone cover main body which covers the upper side of a cylindrical grindstone and which covers an upper front of the grindstone. It has an operating shaft that moves forward and backward in the direction perpendicular to the direction,
An actuator for adjusting the position of the grinding wheel front cover in which the upper end of the grinding wheel front cover is pivotally mounted on the operating shaft, wherein the upper end of the grinding fluid nozzle is pivotally mounted on the operating shaft of the actuator, and A grinding fluid nozzle interlocking with the grinding wheel front cover, wherein the grinding wheel front cover and the grinding fluid nozzle are continuously connected via a cam mechanism so that the tip of the nozzle is always directed to the grinding point. 2. The grinding wheel nozzle according to claim 1, wherein the cam mechanism is provided on one of the grinding wheel front cover and the grinding fluid nozzle in a rotating direction of the grinding wheel front cover. A cam member having a cam groove having an inclined angle, and a cam follower provided on the other of the grinding wheel front cover and the grinding liquid nozzle and slidably guided in the cam groove of the cam member. Grinding fluid nozzle linked to the front cover of the grinding wheel.