JPH0691509A - Grinding machine - Google Patents

Abstract

PURPOSE:To facilitate work, increase varying angle accuracy, and facilitate numerical controllableness by arranging a combination of multiple disk angle bases with specified inclination surfaces cylindrically between a base and a head and rotating them independently. CONSTITUTION:Multiple angle bases 5a to 5c are stacked cylindrically on a base 3 and a head 7 is installed on the uppermost of it to form a grinding machine. A lower angle base 5a is passed onto a shaft 15 studded on the base 3 through the center hole 17 of the base 5a, and supported rotatably with its horizontal surface 19 faced downward. An inclined surface 21 with a specified inclination angle of alpha deg. is formed on the upper surface of the lower angle base 5a, and an inclined surface 35 with the same inclination angle as the inclined surface 21 is stacked on it to form a middle angle base 5b cylindrically. Similarly, an upper angle base 5c with horizontal upper surface is stacked on it through inclined surfaces 37 and 55. The angle bases 5a to 5c are rotated by drive members 25 independently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinder, and more particularly to a grinder that simplifies a turning and turning mechanism of a grindstone.

[0002]

2. Description of the Related Art As a conventional grinding machine, for example, an optical profile grinding machine shown in FIGS. 3 and 4 is generally adopted. That is, in the grinder 101 shown in FIGS. 3 and 4, the head 107 rides on the base 103 via the turning sliding surface 105, and is generally referred to as a front relief shown in FIG. 3 as a bending mechanism. In order to obtain the angle change of θ _1, the grinding wheel shaft 111 is changed at the circular arc sliding surface 109. Further, an arc sliding surface 113 is formed on the head 107 in order to obtain a variation angle of θ ₂ which is generally called a lateral clearance shown in FIG.

[0003]

By the way, in the above-mentioned conventional grinding machine, since the arcuate sliding surface is adopted as the angle changing mechanism, it is difficult to machine and a skill is required for the lapping work. Therefore, there is a problem that the cost becomes high and the high accuracy cannot be expected.

In order to solve the above problems, an object of the present invention is to make a sliding surface as a flat surface as a bending mechanism to facilitate machining and reduce cost, and to improve the bending accuracy and facilitate NC. The purpose is to provide a grinder.

[0005]

In order to achieve the above object, the present invention provides a plurality of disc-shaped angle bases having a predetermined inclined surface between a base of a grinding machine and a head in a cylindrical shape. In combination, a driving member for individually rotating the angle base was provided to form a grinding machine.

[0006]

By employing the grinding machine of the present invention, a plurality of angle bases having an inclined surface are provided between the base and the head, and when the angle bases are individually rotated by the drive members, the heads can be swung, The head can be changed. The amount of angle change is a combination of the front clearance and the side clearance.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings. Since the structure of the grinder is already known, detailed illustration and description thereof will be omitted.

Referring to FIG. 1, the grinding machine 1 includes a plurality of (three in this embodiment) angle bases 5a on a base 3.
5b and 5c are stacked, and the head 7 is mounted on the uppermost part. It should be noted that the head 7 includes an elevator 9 and the elevator 9
A grindstone shaft 13 having a grindstone 11 mounted on the is provided.

The angle bases 5a, 5b and 5c will be described in more detail.

Referring to FIG. 2, a hole 17 provided at the center of a disk-shaped lower angle base 5a is inserted into a shaft 15 planted on the base 3 so as to be rotatable.
A horizontal surface 19 is formed on the lower surface of the lower angle base 5a, and an inclined surface 21 is formed on the upper surface thereof, as shown in FIG. Further, a tooth portion 23 is engraved on the outer periphery of the lower angle base 5a, and the tooth portion 23 has a driving member 2 provided on the base 3.
As 5, the pinion 29 mounted on the output shaft of the first drive motor 27 is meshed.

Above the lower angle base 5a,
A disk-shaped intermediate angle base 5b is attached. That is, the shaft 31 protruding orthogonally to the inclined surface 21 which is the upper surface of the lower angle base 5a is rotatable by inserting the hole 33 provided in the intermediate angle base 5b. An inclined surface 35 is formed on the lower surface of the intermediate angle base 5b so as to be in sliding contact with the inclined surface 21 formed on the upper surface of the lower angle base 5a, and the upper surface of the intermediate angle base 5b is shown in FIG. As described above, an inclined surface 37 having a predetermined right downward angle α ° is formed, and the shaft 3 provided on the upper angle base 5c described later is formed.
There is a hole 41 to be inserted in 9.

Further, a tooth portion 43 is engraved on the outer periphery in the vicinity of the lower portion of the intermediate angle base 5b, and the tooth portion 43 has a driving member 25 provided on the lower angle base 5a, for example, a second driving motor 45. A pinion 47 mounted on the output shaft is meshed. Also, the intermediate angle base 5
A tooth portion 49 is also engraved on the outer periphery in the vicinity of the upper portion of b, and a pinion 53 mounted on the output shaft of the third drive motor 51, for example, as the driving member 25 provided on the upper angle base 5c described later is formed on the tooth portion 49. Are meshed.

Above the intermediate angle base 5b,
A disc-shaped upper angle base 5c is mounted, and the shaft 39 projecting perpendicularly to the inclined surface 37 which is the upper surface of the intermediate angle base 5b is planted. Then, on the lower surface of the upper angle base 5c, the inclined surface 5 that slidably contacts the inclined surface 37 formed on the intermediate angle base 5b.
5, a horizontal surface 57 is formed on the upper surface of the upper angle base 5c so as to be in sliding contact with the lower surface of the head 7, and a shaft 59 projecting from the lower surface of the head 7 is planted at the center of the horizontal surface 57. Is provided with a hole 61.

Further, a tooth portion 63 is engraved on the outer periphery near the upper portion of the upper angle base 5c, and the tooth portion 63 serves as a driving member 25 provided on the head 7, for example, an output shaft of a fourth driving motor 65. The attached pinion 67 is meshed.

With the above structure, the position of the base 3 is basically fixed and does not move, so that the first drive motor 27 provided on the base 3 is fixed. The lower angle base 5 a is rotated by the first drive motor 27. At this time, the second drive motor 45 is fixed.

The intermediate angle base 5b is rotated by the second drive motor 45. The upper angle base 5c is rotated by the third drive motor 51. That is,
Performs relative movement with the intermediate angle base 5b. The head 7 is rotated by the fourth drive motor 65. That is, it is a relative motion with the upper angle base 5c.

With the above-mentioned structure, the operation is such that when only the first drive motor 27 is operated, the head 7 makes a turning motion, and the second drive motor 45 and the third drive motor 51 are operated in synchronization. Then, only the intermediate angle base 5b relatively rotates, and the head 7 is bent. The amount of angle change at this time is a combination of the front clearance and the side clearance.

Since the rotary sliding surface is a combination of flat surfaces without using the conventional circular arc-shaped sliding surface, the processing cost of the sliding surface is greatly reduced and the rotation,
It is possible to improve the accuracy of the angle change. Further, it is possible to easily change the angle changing mechanism to NC.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, in the present embodiment, the first to fourth drive motors 27, 45, 51, and 65 are composed of four drive motors, but the rotary movable portion is reduced to form the base 3 and the lower angle base 5a. Integrated into one
It is also possible to make a simple operation.

[0020]

As can be understood from the above description of the embodiments, according to the present invention, since it has the structure as described in the claims, the disk-shaped angle base having the inclined surface is provided. A plurality of sheets are combined and each is rotated by a driving member to change the angle. For this reason, it is possible to facilitate the machining of the sliding surface, greatly reduce the machining cost, improve the accuracy of turning, the angle change, and facilitate the NC of the angle change function.

[Brief description of drawings]

FIG. 1 is a side view of a grinder showing an embodiment of the present invention.

FIG. 2 is an enlarged explanatory view of a II arrow portion in FIG.

FIG. 3 is a side view illustrating a conventional grinding machine.

FIG. 4 is a front explanatory view seen from the right side in FIG.

[Explanation of symbols]

 1 Grinder 3 Base 5a, 5b, 5c Angle base 7 Head 21, 35, 37, 55 Slope 25 Drive member

Claims (1)

[Claims] 1. A drive member is provided between a base of a grinding machine and a head, wherein a plurality of disc-shaped angle bases each having a predetermined inclined surface are combined in a cylindrical shape, and the angle bases are individually rotated. A grinding machine characterized by: