JPS5930663A - Adjusting device of inclining quantity of wheel head for surface grinder - Google Patents

Abstract

PURPOSE:To enable to adjust accurately an angle of inclination of a grinding wheel, by a method wherein a first shaft meeting at right angles with an axis of the grinding wheel is supported by a bed and a wheel head is supported rotatably through a second shaft which meets further at right angles and connects with the first shaft. CONSTITUTION:To incline an axis O-O of a grinding wheel, inclinations 41a-41b are adjusted by turning a wheel head 20 around a second shaft 19 connected with a first shaft 12 through joint operation of movement of a ball 31 by a bolt 27 and turning of a bolt 35. Then, to incline the axis O-O of the grinding wheel in a direction meeting at right angles with this turning direction R, a separate inclination of the axis O-O is adjusted by turning the wheel head 20 around the first shaft 12 to a bracket 23 protruded more than a base 10 by making turnings of bolts 21 and 22 operate jointly. Thus, even in case of adjustment of an angle position by slackening these bolts which are an angle position adjusting system, an inclination angle of the grinding wheel can be adjusted accurately without causing slippage of the wheel head owing to its empty weight.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for adjusting the amount of inclination of a grinding wheel head in a gamma surface grinding machine using grinding wheels, and in particular to a device for adjusting the inclination of a grinding wheel head in a gamma surface grinding machine using grinding wheels. The present invention relates to a grinding wheel head inclination amount mwJ device suitable for a double-head surface grinder.

As shown in Fig. 1, which is a schematic side view, a vertical double-head surface grinder generally has two parts r above and below the vertical surface of the bed l, which serves as the equipment frame.
Attach head 2.2' to With the supporting structure, the grinding wheel 3 can be tilted slightly in consideration of the cutting depth and cutting speed of the grinding wheel 3.3'.In the conventional product, the grinding wheel 3 has a roughly semicircular shape attached to the bed 1. Since the head 2 is tilted using the cross-sectional support member 5 as a fulcrum, loosen the lock bolt (not shown) and tilt the head 2.
When the head 2 is placed in a state where it can be tilted, the head 2 shifts downward due to its own weight, and the head 2 after one knot of the inclined layer 1i11' is fixed at the position shifted downward. Therefore, if the tip of the whetstone 3 is precisely adjusted to iF, it cannot be melted, resulting in a problem of low cutting accuracy.

In order to solve the problems described above, the present invention uses two orthogonal axes to attach the head in a state where the tilt of the hoe can be adjusted. That's right.

In FIG. 2, which is a vertical sectional view, a hole 11 in a vertical plate-like portion (the illustrated portion) of a bed 10, which is an apparatus frame, is rotatably fitted into a first shaft 12 via a bearing 13. There is. The shaft 12 extends toward the vertical grindstone shaft center O-0, and a slotted screw 15 is screwed into a male screw portion provided at the end farthest from the center O-0. 16 is a washer. A bracket 17 is provided at the end of the shaft 12 on the center 0-0 side, and a second shaft 19 is fitted into the hole of the bracket 17. Axis 19 is aligned with axis 12 and center 0-. It is a horizontal member extending at right angles to 0, and as shown in FIG. 3, which is a 11l-ITI cross-sectional view of FIG. is fitted into a hole in the lower end of the head 20.

Near the upper end of the right side of the head 20 in FIG. 3, two adjustment bolts 21 and 22 parallel to the shaft 19 are installed from the outside (right side in FIG. 3). One of the holes 21 is screwed into the screw hole of the head 20, and its partially spherical tip surface is in contact with the bottom 23. The bracket 23 is a member provided on the neck 10 (Fig. 2), and is inserted into the internal cavity of the head 20, and has a screw hole 25 into which the male threaded portion of the other bolt 22 is screwed. . The part of the bolt 22 near the head (part 14 on the right side of Fig. 3) is equipped with a screw, and this non-threaded part is rotatably fitted into the hole 26 of the head 2o. It is a long hole extending in an arc shape with the shaft 19 as the center, and the -U head 20 can be rotated about the shaft 19 with the bolt 22 screwed into the hole 25 as will be described later.

At the upper end of the head 20 at the bottom of the bracket 17, another assist stop (L') 2.7 is attached. As shown in FIG. 2, the bolt 27 is parallel to the shaft 12, and the head 29
? j. It is located in an upwardly opening recess 30 at the upper end of the head 20, and is screwed into the screw hole 28 of the head 20 from the recess 30 side. A hard ball 31 at the tip of the bolt 27 is rotatably held, and the ball A/31 is attached to the bed sheet 1.
It is seated on a vertical surface 33 of a plate 32 embedded in the 0. 31 plates are hardened and finished to be harder than other measurements. Also, surface 33 is perpendicular to the center of axis 12.

Reference numeral 35 denotes an adjustment bolt that connects the upper part of the head 20 and the bed 1O, and it should be installed parallel to the axis 12 from the bed 1O side, and inserted into the hole 36 of the bed 1O, as well as the screw hole 3711 of the head 20. : Screwed together. The bolt insertion hole 36 is a long hole extending in an arc shape with the shaft 12 as the center, and the bolt insertion hole 36 is a long hole that extends in an arc shape with the shaft 12 as the center.
It has become.

Further, a swivel washer 40 is interposed between the head 39 of the bolt 35 and the bed 10, so that even when the head 20 is rotated about the shaft 19, the annular shape of the head 39 is removed via the washer 40. The end surface (the left end surface in FIG. 2) is pressed against the bed 10 with uniform force over the entire surface.

As shown in FIG. 3, bolts 35 are provided on both left and right sides of the head 20.

A similar swivel washer 24 is also interposed between the head of the bolt 22 and the head 200. Bolt 35th place (
The length of U can be changed in various ways, and for example, bolts 35 can be attached to the upper ends of the bed 10 and the head 20 using a bracket or the like.

As shown in Fig. 2, it is a member that vertically supports the sleeve 38 holding the head 20 &i grinding wheel shaft fl.Although not shown in the figure, it has a built-in sleeve elevating mechanism consisting of a worm pinion, worm gear, etc. 38 is raised and lowered to adjust the lower position (incision stitch) of the grindstone 41. 1. The stone 41 is disc-shaped and is fitted onto the lower end of the whetstone shaft.

Another grindstone (not shown) is provided below the grindstone 41.

The lower grinding wheel is attached to the upper end of a vertical grinding wheel shaft (not shown), and as a general rule, it is not tilted, although it may have the same tilting mechanism as the upper grinding wheel shaft.The amount of inclination of the grinding wheel 41 can be adjusted. Explain the work. K is for tilting the grindstone 41 as shown in the two-point chain # and 41H in FIG.

Turn the bolt 27 fully to move the ball 31 toward the screw hole 28, and at the same time turn the bolt 35 to draw the head 20 toward the bed 10 until the ball 31 touches the plate surface 33. As a result, the grinding head lO rotates in the direction of the arrow f around the shaft 19, and the grinding wheel 41 rotates by 2
It is inclined as shown by the dotted chain line 4111. The whetstone 41 is connected to the two-dot chain line 4
K to tilt in the opposite direction as in 1b is bolt 27.35
Just turn it in the opposite direction.

Rotate the whetstone 41 in the direction perpendicular to the direction indicated by the arrow ((To tilt it, use the pole shown in Figure 3 as in the above case).Turn the grinding wheel 21°22 to move the head 20 in the direction indicated by the arrow as shown in Fig. 2. All you have to do is rotate it in the viewing direction.

As explained above, according to the present invention, the first shaft 12 which is orthogonal to the grinding wheel axis center O-O is supported by the bed IOK serving as the device frame, and the first shaft which is orthogonal to the first axis 12 and the grinding wheel axis center O-0 is supported. 2-axis 19'i bracket) 17 through the 1st NI1
2, and the head 20 supporting the grinding wheel shaft is connected to the second shaft 19.
The head 20 is connected to both shafts 12.1 by the bed lO.
Since the angular displacement 1 cliff adjustment mechanism (bolts 21, 22, 27, 35, etc.) is provided to adjust the angular position of the head 20 around both axes 12 and 19, the bolt 21, 22, 27, 35, etc., the head 20 will not be moved by the force, and the inclination angle of the grindstone 41 can be adjusted accurately.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of the conventional example, and Fig. 2 is a vertical view of the embodiment.
, '...1 side view, and FIG. 3 is a sectional view taken along line Ill-III in FIG. 2. lO...Bed, 12...First axis, 17
...Bracket, 19...Second axis, 20...Head, 21.22.27.35...Bolt (angular position adjustment ￥16 mechanism), 41...Whetstone, 0-0...・Wheelstone axis center・Samurai license applicant: Daisho Seisoi Co., Ltd.

Claims (1)

[Claims] A bed serving as the device frame supports a first shaft perpendicular to the center of the grinding wheel shaft, and a second shaft perpendicular to the center of the first shaft and the center of the grinding wheel shaft.
The shaft is connected to the first shaft via a bracket, the head supporting the grindstone shaft is connected to the second shaft, and the head is supported by a bed so as to be rotatable around both axes, and the head supporting the grindstone shaft is supported rotatably around both axes with respect to the bed. 1. A grindstone head inclination/collapse adjustment device for a surface grinder, characterized in that it is provided with an angular position adjustment mechanism for adjusting the angular position of the five points.