JPH071251Y2 - Work locator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a work locator for a grinding machine capable of cylindrical grinding and simultaneous grinding of a cylindrical portion and a shoulder portion following the cylindrical portion.

Conventional technology Since the work locator is conventionally provided on the bed or table, it has poor versatility because it interferes with the work rest, automatic sizing device, etc. when changing the setup for each workpiece, and it is also difficult to retract the filler. The mechanism became large and expensive. In order to deal with this problem, a work locator is provided on the grindstone stand, for example, in Japanese Utility Model Publication Nos. 51-18552 and 61-7.
There is No. 8564.

Problems to be solved by the invention All of the above cannot be applied to a grinding machine that is dedicated to cylindrical grinding and can simultaneously grind a cylindrical portion and a shoulder portion, which is a stepped portion, and is used for cylindrical grinding in one machine. The problem is that we can not meet the demand for flexibility that makes it possible to quickly produce what is needed for high-mix low-volume grinding by using the same machine for simultaneous grinding of the cylindrical part and shoulder part, which is the step, for the next workpiece. Had.

The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to provide a grinding head mount type work locator for cylindrical grinding and simultaneous grinding of a cylindrical part and a shoulder part which is a step part. It is intended to provide a work locator which can be easily dealt with when switching to.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a grinding wheel base provided on a grinding wheel lower base so as to be rotatable around a vertical axis, and cylindrical grinding by exchanging the grinding wheel and a cylindrical portion with one grinding wheel. In a grinding machine capable of simultaneously grinding a shoulder portion, which is a step portion following a cylindrical portion, a locator base is provided so as to be horizontally rotatable on a grindstone base,
The locator base is provided with a turning shaft which is turned by a driving means at a predetermined angle so as to be parallel to the grindstone shaft during cylindrical grinding, and a feeler member for outputting a touch signal to the turning shaft is provided in a direction perpendicular to the shaft center for cylindrical grinding. And a stopper member of the locator base for positioning the feeler member at the workpiece locating position when grinding the cylindrical portion and the shoulder portion, respectively, and selectively turning the locator base in accordance with the grinding. Is.

Action During cylindrical grinding, the feeler of the work locator should be perpendicular to the grindstone axis and the workpiece.When simultaneously grinding the cylindrical part and the shoulder part, which is the step, tilt the grindstone base at a specified angle and loosen the locator base. The tool is fixed in the state where the feeler is orthogonal to the workpiece by turning the wheel axis in the opposite direction at the same angle as the wheel head turning.

Embodiments The present invention will be described below with reference to FIGS. 1 and 2. A grindstone mount 1 is mounted on a grinder mount lower base (not shown) of a known angle head and angle slide grinder so as to be rotatable by a predetermined angle. A grindstone shaft 2 is rotatably supported on the grindstone base 1, and the grindstone 3 at the tip is replaced with a flat grindstone during cylindrical grinding, and an angle grindstone during simultaneous grinding of a cylindrical portion and a shoulder portion which is a step.

On the upper surface of the grindstone base 1, a locator base 5 is supported so as to be horizontally rotatable around the rotary pin 4, and the rotary pin 4 is also supported.
It is fixed by a plurality of T-bolts fitted into two T-grooves 6 having a circular arc formed by engraving the center of. The locator table 5 has a rotating shaft 7 parallel to the axis of the grindstone shaft 2 during cylindrical grinding.
, One end of which is connected to the rotary shaft of the rotary actuator 8 fixed to the locator base 5 by a joint,
A swing rod 9 is fixed to the other end in a direction perpendicular to the turning axis.
At the tip of the oscillating rod 9, there is provided a detector 11 for contacting with a step or a flange in the longitudinal direction of the workpiece, and a detector 11 for outputting a signal at the time of contact. Further, a stopper 12 for positioning the locator base 5 when the grindstone base 1 is at the cylindrical grinding position and a stopper 12 for positioning the locator base 5 at the simultaneous grinding position of the cylindrical portion and the shoulder portion which is the step portion.
13 is provided on the grindstone 1 and includes a swing rod 9 and a feeler 10.
Is adjusted so that it is perpendicular to the axis of the workpiece at the measuring position.

The state of FIG. 1 shows the position of the work locator during cylindrical grinding. The locator base 5 is in contact with the stopper 12 and the feeler 10 is in position to contact the workpiece. After the work is supported by the center of the headstock and tailstock (not shown), and the grindstone is stopped at the forward measurement position, the table (not shown) is moved in the axial direction of the work to step or flange the work. Touch the filler. Upon contact, a signal is output from the detector 11 to stop the table and position the work piece. The rotary actuator 8 is operated to rotate the swinging member 9 and the feeler 10 upward through the swivel shaft 7 and retract. Cylindrical grinding is performed by cutting the wheel head 1 forward. Next, in order to move the table to grind the flange end face or the end face of another workpiece that has been exchanged, the grindstone 3 is replaced with an angle grindstone, and the grindstone base 1 is pivoted and positioned at a predetermined angle in a clockwise direction to form a cylindrical portion. And the shoulder portion, which is a step, is at the same grinding position. Also, loosen the nut of the T bolt on the wheel head with a wrench, and manually rotate the locator table 5 counterclockwise about the turning pin 4 at the same angle as the wheel head, and use the stopper.
Fix the locator base 5 by abutting on 13 and tightening the T bolt. The rotary actuator is driven to rotate the filler so that it is perpendicular to the workpiece and the measurement position is reached. Similarly, the workpiece is axially positioned, the filler is retracted, and the cylindrical portion and the shoulder portion, which is a stepped portion, are simultaneously ground.

The work locator position can be automatically changed by tightening and loosening the T-bolt, performing a clamping operation in place of this, and turning the locator base 5 by operating a hydraulic cylinder device or the like.

Effects Since the present invention is configured as described above, the present invention has the following effects.

It is possible to easily deal with the grinding switching of the grinding machine capable of performing the cylindrical grinding and the grinding of the cylindrical portion and the shoulder portion which is the step portion, and the setup time can be shortened. It also makes touring on the table easier.

[Brief description of drawings]

FIG. 1 is a view showing a position in the case of cylindrical grinding of the device of the present invention,
FIG. 2 is a state diagram at the time of simultaneous grinding of a cylindrical portion and a shoulder portion which is a step portion. 1 …… Whetstone base, 3 …… Whetstone 4 …… Swivel pin, 5 …… Locator base 8 …… Rotary actuator 9 …… Swing rod, 10 …… Feeler 11 …… Detector

Claims (1)

[Scope of utility model registration request] 1. A grindstone base is provided on a grindstone lower base so as to be rotatable about a vertical axis, and by exchanging the grindstone, cylindrical grinding and simultaneous grinding of a cylindrical part and a shoulder part which is a step part following the cylindrical part by one grindstone. In a grinding machine capable of performing the above, a locator base is provided so as to be horizontally rotatable on the grindstone base, and a rotary shaft for rotating the locator base by a drive means at a predetermined angle is provided so as to be parallel to the grindstone shaft during cylindrical grinding. A feeler member that outputs a touch signal is provided in a direction perpendicular to the axis, and the stopper member of the locator table that positions the feeler member at a workpiece locating position during cylindrical grinding and grinding of the cylindrical portion and the shoulder portion is provided. A work locator which is provided on a grindstone stand and selectively turns the locator stand according to grinding.