JP2758075B2 - Round surface processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a round surface processing machine for forming a round surface on a circumferential edge of a round bar-shaped work (for example, a press die or a die tool). It is.

[Prior art] Conventionally, in order to form a round surface on the circumferential edge of the end surface of a round bar-shaped work, it is formed by processing with a lathe or a tool grinder, and finishing it while measuring with a round gauge or a projector. .

[Problem to be Solved by the Invention] In the above-described conventional technique, after a work is formed by a machine, the process of once removing the work from the machine and measuring it with a measuring machine must be repeated several times to finish. It was also inefficient, inaccurate, and required skill.

The present invention has been made to solve such a problem.

[Means for Solving the Problems] The first invention is to form a round surface R on a circumferential edge r of an end surface of a round bar-shaped work W, and a chuck table 8 for gripping and rotating the work W. A tool post 16 having a turning fulcrum A for turning the tool 18 left and right, and a lens barrel 22 for viewing the work W through a screen 23. The lens barrel 22 is provided with a base point B on the screen 23 as a tool post. The base point B on the screen 23 of the lens barrel 22 and the turning fulcrum A of the tool rest 16 correspond to the radius center point C of the workpiece W. A round surface processing machine characterized in that a lens barrel 22 and a tool rest 16 are integrally slidably provided to move to a position.

The second invention is to form a round surface R on the end surface circumferential ridge r of the round bar-shaped work W, and has a chuck base 8 for gripping and rotating the work W, and a turning fulcrum A. The tool rest 16 includes a tool rest 16 for turning the tool 18 left and right, and a lens barrel 22 for viewing the work W through a screen 23. The lens barrel 22 is located at a position corresponding to a base point B on the screen 23 as a turning fulcrum A of the tool rest 16. The chuck base 8 is provided in conformity with (Z), and a position (Z) corresponding to the radius center point C of the work W corresponding to the base point B on the screen 23 of the lens barrel 22 and the turning fulcrum A of the tool rest 16. A round surface processing machine characterized by being provided slidably so as to be moved to a surface.

[Operation] The first embodiment of the present invention slides the tool rest 16 and the lens barrel 22 closer to the chuck table 8, and looks at the lens barrel 22 to move the base point B on the screen 23 to the end surface circumferential ridge r of the workpiece W. Move to a desired radius center point C. At the same time, the turning fulcrum A of the tool rest 16 is also located at the radius center point C of the work W. Here, by turning the tool rest 16, a desired radius surface R is formed on the end surface circumferential ridge r of the work W by machining.

Operation of the Second Invention The chuck base 8 is slid close to the tool post 16 and the lens barrel 22,
The desired radius center point C of the end surface circumferential ridge r of the work W is moved to the base point B on the screen 23 while looking into the lens barrel 22. At the same time, the radius center point C of the workpiece W is also located at the turning fulcrum A of the tool rest 16. Here, by turning the tool rest 16, a desired radius surface R is formed on the end surface circumferential ridge r of the work W by machining.

Example An example of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a base on which sliding grooves 2 and 3 are formed on the upper surface, and sliding tables 4 and 5 are fitted in the sliding grooves slidably in the Y direction.
The slide tables 4 and 5 have sliding grooves 6 and 7 formed on the upper surface thereof, and a chuck table 8 and a swivel table 9 are fitted in the slide grooves 6 and 7 so as to be slidable in the X direction. 10 ・ 11 are slides 4 ・ 5 and 12 ・ 13
Is a handle for sliding the chuck table 8 and the swivel table 9 respectively, and has a micrometer so that precise positioning can be performed.

The chuck table 8 has a round bar-shaped work W
And a rotating device (not shown) such as a motor is provided inside.

The revolving table 9 has a support shaft 15 erected on the upper surface thereof, and the revolving table 9 is mounted on the tool rest 16 so as to be revolvably fitted thereto. That is, the tool rest 16 is provided with the turning operation plate 17 attached to the lower portion thereof,
15 as a turning fulcrum A with the axis of the support shaft 15
It is configured to turn 18 left and right. A vertical center line passing through the turning fulcrum A is defined as a reference line Z. Also, this turret
16 has a sliding groove 19 formed on its upper surface,
20 is slidably fitted. The blade holder 20 is a blade
18 (a cutting tool in this embodiment) is held so that the cutting edge slides in the direction of coming and going with respect to the reference line Z. Reference numeral 21 denotes a sliding handle provided with a micrometer so that precise charging can be performed.

The tool rest 16 is configured to face the chuck stand 8 so that the tool 18 faces the workpiece W.

Reference numeral 22 denotes a lens barrel in which an objective lens and an eyepiece (not shown) are provided, and the enlarged work W can be seen through a transparent screen 23 provided adjacent to the eyepiece. Screen 23 has a graduated cross base line on its surface.
24 is displayed, and the intersection point is set as a base point B. This lens barrel 22
Is an appropriate position of the turntable 9 (outside the turn trajectory of the turning operation plate 17) with the base point B on the screen 23 corresponding to the position corresponding to the turning fulcrum A of the tool rest 16, ie, the position on the reference line Z. Is erected with a stand 25 interposed therebetween. Therefore, the lens barrel 22 and the tool rest 16 always move (slide) integrally, and the base point B on the screen 23 corresponds to the turning fulcrum A of the tool rest 16. The positional relationship with W can be confirmed.

In this embodiment, both the chuck table 8 and the tool post 16 are configured to be slidable in the X direction and the Y direction. However, one of the two tables 8 and 16 is slid in the X direction and the Y direction. Moveable,
The other may be fixed. Alternatively, one may be slidable only in the X direction and the other may be slidable only in the Y direction.
These configurations are also included in claims 1 and 2.

 Next, the operation of the embodiment will be described.

First, the work W is gripped by the chuck 14 and rotated.
Initially, the blade 18 is kept slightly away from the workpiece W by the handle 21.

Next, while looking into the lens barrel 22, hold the tool post 16 with the handle 11.
13 to approach the chuck base 8. (Alternatively, the chuck base 8 is brought close to the tool post 16 by the handles 10 and 12. Alternatively, both are brought close to each other. Hereinafter, the case where the tool post 16 is moved will be described for convenience.) Cross base line 24 of workpiece W
(Refer to FIG. 3). Here, the micrometer of the handles 11 and 13 is set to zero.
After that, the tool rest 16 is accurately moved by the micrometer by the radius of the desired radius R to be formed on the circumferential edge r of the end face of the work W (in the X and Y directions). That is, it moves to the desired radius center point C of the base point B on the screen 23. The position of the radius center point C is the turning fulcrum A of the tool rest 16.
It is also the position.

Here, the tool rest 16 is turned by the turning operation plate 17 (90
Then, the cutter 18 is slightly approached to the workpiece W by the handle 21 and cut. Eventually, the processing ends when the cutting edge of the blade 18 comes into contact with the end surface or the peripheral surface of the work W. In this way, an accurate round surface R of the end surface circumferential ridge r of the work W is formed by processing. FIG. 4 shows an example of a round surface processed and formed in a eccentric shape, and FIG. 5 shows an example of a round surface processed and formed in an eccentric shape.

[Effects of the Invention] Since the present invention has the configuration as described above, the turning fulcrum A of the tool rest 16 can be simply and accurately positioned at the radius center point C of the work W through the screen 23 of the lens barrel 22. it can. As a result, naturally, there is an excellent effect that a desired radius surface R can be easily and accurately formed on the end surface circumferential ridge r of the work W efficiently.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a plan view, FIGS. 3 to 5 are plan views in a state where a lens barrel is viewed, and FIG. It is a top view of an important section showing an example. Description of Drawing Symbols 8: chuck base, 16: tool post, 18: tool, 22 ...
Barrel, 23 ... Screen, A ... Turning fulcrum of tool post, B
... Reference point on screen, C... Center point of work radius, R... Round surface of work, r...

Claims (2)

(57) [Claims] 1. A round bar-shaped workpiece W is formed by forming a round surface R on a circumferential edge r of an end face thereof. The tool has a chuck table 8 for gripping and rotating the workpiece W and a turning fulcrum A. 18
, And a lens barrel 22 that looks into the workpiece W through a screen 23. The lens barrel 22 has a base point B on the screen 23 at a position (Z ), And a base point B on the screen 23 of the lens barrel 22 and a turning fulcrum A of the tool rest 16 are set on the workpiece W.
In order to move to the position corresponding to the radius center point C of the lens barrel 22,
And a tool rest 16 provided integrally and slidably. 2. A round bar-shaped work W is formed with a round surface R on an end surface circumferential ridge r. A chuck base 8 for gripping and rotating the work W, and a cutting tool having a turning fulcrum A. 18
, And a lens barrel 22 that looks into the workpiece W through a screen 23. The lens barrel 22 has a base point B on the screen 23 at a position (Z ) And the chuck table 8
Moves the center point C of the workpiece W to the screen 23 of the lens barrel 22.
A round surface processing machine characterized by being slidably provided so as to move to a position (Z) corresponding to the upper base point B and the turning fulcrum A of the tool rest 16.