JP2001228276A - Manual pulse generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manual pulse generator capable of improving workableness, reducing the area of necessary floor and ensuring operation capability. SOLUTION: In a manual pulse generator 9 for outputting pulse signal according to the rotation angle by manually rotating a handle 11 around which graduations are given with equal intervals in the circumference, a support hole 15 extending axially is formed on the handle 11 and a containing recess part 16 extending perpendicularly to the axis is formed in succession on the support hole 11. A rod shape knob 12 is supported slidably between a using position A in which remaining part projects upward of the handle 11 when the knob 12 is partly inserted in the support hole 15 and a containing position B in which it is contained in the containing recess part 16 when it is withdrawn out of the hole 15 and laid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual pulse generator which outputs a pulse signal in accordance with a turning operation amount of a handle.

[0002]

2. Description of the Related Art For example, an NC machine tool for machining a work by numerical control may be equipped with a manual pulse generator for finely adjusting the feed amount of the machine and the relative position between the tool and the work. As shown in FIGS. 8 and 9, this manual pulse generator is operated by manually rotating a handle 50 having a scale of 100 equal to one rotation, and thereby performing an electric operation according to the rotation angle. It is configured to output a target pulse signal.

[0003] From the viewpoint of facilitating the operation of the handle, conventionally, a rod-shaped knob 51 is attached to the handle 50.
May be fixed by projecting it to the outside of the machine (for example, see Japanese Patent Application Laid-Open No. 10-113837).

[0004]

However, when the fixed type knob 51 is attached to the handle 50 as in the above-mentioned conventional device, there is a possibility that the knob may be caught on the knob 51 at the time of work and hinder the work. There is a problem that the required floor area is increased by the amount of protrusion a of 51.

Here, in order to avoid interference during work and increase in required floor area, it is conceivable to reduce the protrusion amount a of the knob 51 as much as possible. However, this makes it difficult for the fingers to be caught when operating the steering wheel, and the operability may be reduced.

The present invention has been made in view of the above-mentioned conventional situation, and provides a manual pulse generator capable of improving operability, reducing the required floor area, and ensuring operability. It is intended to be.

[0007]

According to the present invention, there is provided a manual pulse generator for outputting a pulse signal corresponding to a rotation angle by manually rotating a handle having a scale formed in a circumferential direction by a predetermined angle. When a handle is formed with a support hole extending in the axial direction and a storage recess extending in the direction perpendicular to the axis following the support hole, and the rod-shaped knob is inserted into the support hole and a part of the knob is raised. It is characterized in that it is swingably supported between a use position where the remaining portion protrudes outward from the handle and a storage position where it is stored in the storage recess when pulled out from the support hole and lowered.

According to a second aspect of the present invention, in the first aspect, a guide rail is formed in the support hole, and the knob is rolled on the guide rail to move the knob between the use position and the storage position. It is characterized in that wheels for guiding are provided.

A third aspect of the present invention is characterized in that, in the second aspect, a stopper portion is formed at an outer end portion of the guide rail to contact the wheel and regulate the knob to a retracted position.

[0010]

According to the manual pulse generator of the present invention, the rod-shaped knob is swung between the use position protruding outward from the handle and the storage position stored in the storage recess. Since it is supported as possible, it is possible to eliminate the protrusion outward from the handle by storing the knob in the storage recess. As a result, the workability can be improved by preventing the work from being caught, the required floor area can be reduced, and the space of the entire machine can be reduced.

Also, only when used, a part of the knob is inserted into the support hole and the remaining part is projected outward, so that the knob can be set to a length that is easy for a finger to catch.
The turning operation of the handle can be performed smoothly.

According to the second aspect of the present invention, since the guide rail is formed in the support hole, and the wheel is pivotally supported on the knob, the use and storage operation of the knob can be performed easily and easily. .

According to the third aspect of the present invention, the stopper is formed on the guide rail so as to contact the wheel and regulate the knob at the retracted position. Can be prevented from falling off.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 7 are views for explaining a manual pulse generator according to an embodiment of the present invention. FIG. 1 is a front view of an operation panel provided with the manual pulse generator. 2 and 3 are front and side views of the handle of the manual pulse generator, FIGS. 4 and 5 are cross-sectional side and front views showing the use and retracted state of the knob, and FIG. FIG. 7 is a perspective view of an NC lathe provided with a manual pulse generator.

In FIG. 7, reference numeral 1 denotes an NC lathe. The NC lathe 1 surrounds the entire outer peripheral portion of a machine body 2 with a cover 3 and has a working opening formed in a front cover 3a of the cover 3. It has a schematic structure in which a sliding door 4 that opens and closes is provided, and a display panel 5 and an operation panel 6 are provided on the right side of the front cover 3a. The cover 3 prevents the cutting chips and the coolant inside the machine from scattering outside the machine.

As shown in FIG. 1, various switches are arranged in a concentrated manner on the operation panel 6, and the in-board lighting switch 7a and the coolant switch 7 are arranged in order from the right end.
b, spindle switch 7c, panel operation selection switch 7d,
NC function switch 7e, chip conveyor switch 7f,
A fast forward override switch 7g, a feed override switch 7h, a mode selection switch 7i, a tool post switch 7j, a manual shaft feed switch 7k, a head changeover switch 71, a tailstock shaft switch 7m, a handle switch 7n, and an automatic operation switch 7o are provided. An emergency stop button 7p and a status display lamp 7q are provided at the upper right and left ends, respectively.

The handle switch 7n includes a select switch 8 for switching the amount of movement per pulse to three stages of × 1, × 10 and × 100, and a manual pulse generator 9
And The manual pulse generator 9 is, for example, a rotary optical type in which a rotary plate is disposed between a light source and a light receiving element, or a magnetic type using a magnetic sensor, and is mainly attached and fixed to the operation panel 6. A handle 11 is rotatably supported on a handle plate 10 on which a base scale 10a is formed.

The handle 11 has a schematic structure in which a flange-shaped ring portion 11b is integrally formed on an opening edge of a bottomed cylindrical handle body 11a, and a scale 11c for 100 equal parts is formed on the ring portion 11b. is there.

The pulse generator 9 generates an electric pulse signal corresponding to the rotation angle by manually rotating the handle 11 by a predetermined scale in a positive direction (clockwise) or a negative direction (counterclockwise). Output to a numerical controller (not shown). The numerical controller drives an actuator (not shown) in accordance with the amount of turning operation of the handle 11, thereby finely adjusting the feed amount of the machine body 2 and the relative position between the tool and the work. .

The handle 11 is provided with a columnar knob 12 which is a feature of the present embodiment and is swingably disposed between a use position A and a storage position B. Has become.

Outer bottom wall 11 of handle body 11a
A bottomed cylindrical support hole 15 extending in the axial direction is formed in d, and the support hole 15 is formed at a position deviated upward from the center of the handle. The knob 1 is provided in the support hole 15.
2 is inserted and raised to leave the remaining portion at the bottom wall 11d.
Project outward from At this time, the knob 12 is attached to the support hole 15.
The bottom, 15a, left and right side surfaces 15b, 15b, and guide rails 17 described later restrict movement in the inward, left, right, and up and down directions, thereby preventing rattling in the rotation direction.

The handle body 11a has a storage recess 16 extending in the direction perpendicular to the axis (diameter direction) following the support hole 15. The storage recess 16 is formed in a semicircular shape along the outer peripheral shape of the knob 12 when viewed in a cross section. The depth of the storage recess 16 is set so that when the knob 12 is stored, the outer end surface of the knob 12 and the outer end surface of the handle body 11a are flush.

A pair of upper and lower guide rails 17, 17 are formed in parallel on the left and right side surfaces 15b in the support hole 15 with a space therebetween, and a stopper 18 is provided at an outer end of the guide rails 17, 17. Is formed.

On the lower surface of the inner end of the knob 12, a bearing member 2 is provided.
The axle 21 is pinched and fixed by 0. As shown in FIG. 6, the bearing member 20 has a structure in which a slit 20a through which the axle 21 is inserted and a retaining lip 20b are formed at the opening edge of the slit 20a. An axle 21 is held between the bottom and the knob 12.

Wheels 22, 22 are provided at both ends of the axle 21.
Are mounted rotatably, each wheel 22 is inserted between the upper and lower guide rails 17, 17, the use position A where the knob 12 abuts the bottom surface 15 a of the support hole 15, and the wheel 22 is connected to the stopper portion 18. The knob 12 is guided between the storage position B and the contact position B.

Next, the operation and effect of this embodiment will be described.

In the manual pulse generator 9 of the present embodiment, the knob 12 is normally stored in the storage recess 16 and the knob 12 is raised and protruded outward when used. In this case, pressing the upper end 12a (see FIG. 3) of the knob 12 raises the knob 12 with the axle 21 as a fulcrum. In this state, the knob 12 is pushed into the support hole 15 until it contacts the bottom surface 15a. To rotate the handle 11. To retract, the knob 12 is pulled out until the wheel 22 comes into contact with the stopper portion 18, and in this state, the knob 12 is rotated downward around the axle 21 and stored in the storage recess 16.

As described above, according to this embodiment, the support hole 15 extending in the axial direction is formed in the handle 11, and the storage recess 1 extending in the diametric direction following the support hole 15 is formed.
6 is formed, and the cylindrical knob 12 is swung between a use position A in which the knob 12 is inserted into the support hole 15 and protrudes outward, and a storage position B in which the knob 12 is pulled out of the support hole 15 and stored in the storage recess 16. Since the knob 12 is movably supported, the knob 12 is stored in the storage recess 16 when the knob 12 is not used, so that the protrusion from the handle 11 can be eliminated. As a result, workability can be improved by avoiding interference during work, and the required floor space can be reduced, albeit slightly.
Space saving of the entire machine can be achieved.

The knob 12 is connected to the bottom wall 1 of the handle 11.
Since the operation panel 6 is stored so as to be flush with 1d, a flat feeling can be obtained in the design of the operation panel 6, and the appearance can be improved.

Further, since the knob 12 is inserted into the support hole 15 and raised when used only, the amount of protrusion of the knob 12 can be set to a length that is easy for a finger to catch. Specifically, the length of the knob 12 is reduced. The length of the handle body 11a can be increased to approximately the same length as the diameter of the handle body 11a, and the operation of the handle can be smoothly performed by securing the hook on the finger.

In this embodiment, a pair of upper and lower guide rails 17 are formed on the left and right side surfaces 15b of the support hole 15, and a stopper 18 is formed at the outer end of each guide rail 17.
The wheel 22 is mounted on the knob 12 via the bearing member 20 and the wheel 22 is supported between the upper and lower guide rails 17, so that the knob 12 can be used and stored easily and easily. And the knob 12 with a simple structure
Can be held in the storage position B, and the knob 12 can be prevented from falling off.

When the knob 12 is used, the knob 12 can be raised to the use state by pressing the upper end portion 12a of the knob 12, so that the operation for switching to the use state can be easily performed.

In the above embodiment, the NC machine tool has been described as an example. However, the application of the manual pulse generator of the present invention is not limited to this, and can be applied to, for example, a numerical control robot.

[Brief description of the drawings]

FIG. 1 is a front view of an operation panel provided with a manual pulse generator according to an embodiment of the present invention.

FIG. 2 is a front view of a handle of the manual pulse generator.

FIG. 3 is a side view of the handle.

FIG. 4 is a sectional side view showing a turning operation of a knob of the handle.

FIG. 5 is a sectional front view showing a use state of the knob.

FIG. 6 is a side view of a bearing member of the knob.

FIG. 7 is a perspective view of an NC lathe provided with the manual pulse generator.

FIG. 8 is a front view showing a conventional general handle.

FIG. 9 is a side view showing a conventional general handle.

[Explanation of symbols]

 Reference Signs List 9 manual pulse generator 11 handle 11c scale 12 knob 15 support hole 16 storage recess 17 guide rail 18 stopper 22 wheel A use position B storage position

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hitomi Imura 106 Kita-Koriyama-cho, Yamatokoriyama-shi, Nara Prefecture F-term in Mori Seiki Co., Ltd. 2F078 FA10 FB04 FB16 FB19 FB49 FD08 FF11 FF15 9A001 KK54

Claims (3)

[Claims] 1. A manual pulse generator for manually outputting a pulse signal corresponding to a rotation angle by manually rotating a handle provided with a scale in a circumferential direction at a predetermined angle. A hole and a storage recess extending in a direction perpendicular to the axis following the support hole are formed, and when the rod-shaped knob is partially inserted into the support hole and raised, the remaining portion projects outward from the handle. A manual pulse generator characterized in that the manual pulse generator is swingably supported between a use position to be used and a storage position stored in the storage recess when pulled out from the support hole and tilted. 2. A guide rail according to claim 1, wherein a guide rail is formed in said support hole, and a wheel is provided on said knob so as to contact said guide rail to guide said knob between a use position and a storage position. A manual pulse generator, which is provided. 3. The manual pulse generator according to claim 2, wherein a stopper portion is formed at an outer end portion of the guide rail to contact the wheel and regulate the knob to a retracted position.