JPS6042036Y2 - posture adjustment device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an attitude adjustment device that adjusts the attitude of a workpiece by tilting or rotationally indexing the workpiece.

As this type of attitude adjustment device, for example, as shown in FIG.
Some have a rotary support 18 that is rotatably indexed about a second axis L2 that is perpendicular to the second axis L2.

This device adjusts the inclination angle of the grinding surfaces W1 to W4 of the workpiece W with respect to the grinding wheel G by rotating the turning table 13, and also rotates one of the plurality of grinding surfaces W1 to W4 to the grinding wheel by rotationally indexing the rotation support 18. The posture of the workpiece W can be easily changed, such as by making it correspond to G.

However, in the apparatus with the above configuration, the swivel base 13
On the top, the drive motor for rotationally indexing the rotation support 18 is the first drive motor for functional or structural reasons of the drive system.
Since it is mounted at a position offset from the axis L1, the weight of this drive motor causes a weight imbalance about the first axis in the swivel table 13, which affects the inclination angle of the workpiece W, and the grinding surface W1~ There was a risk that W4 could not be ground with high accuracy.

The present invention was developed to solve these problems, and its purpose is to mount the drive motor that rotates the swivel base at a position that balances the weight of the drive motor that rotates the rotation support. The purpose is to correct the weight imbalance of the table and set the tilt angle of the swivel table with high precision.

Embodiments of the present invention will be described below based on the drawings.

In FIGS. 2 and 3, reference numeral 10 denotes a support stand, and brackets 11, 12 are mounted on this support stand 10 at predetermined intervals.

Reference numeral 13 denotes a swivel base. A pivot shaft 14 is integrally attached to one end of the swivel base 13, and a pivot shaft 15 is rotatably supported at the other end.

These pivots 14,15 respectively correspond to said bracket 11.
It is rotatably or integrally attached to the swivel base 12 and enables the swivel base 13 to rotate around a first axis L1 extending in the horizontal direction.

On the swivel base 13, a rotation support 18 is arranged along the first axis L1.
A holding block 20 having a rectangular holding hole 21 is fixed to the upper end of the rotation support 18 .

This holding block 20 includes a reference sheet 21a that supports the lower surface of the workpiece W, a pressing piece 22 that presses the workpiece W against one side of the holding hole 21, and a clamper 23 that clamps the workpiece W to the reference sheet 21a. is attached to position and clamp the workpiece W in a predetermined position.

As shown in FIG. 4, the swivel base 13 has first and second horizontal lines extending parallel to the first axis L1 at the same height and equidistantly spaced on both sides of the first axis L1. On one horizontal line, a rotary indexing drive motor 25 connected to the drive system of the rotation support is fixed, and on the other horizontal line, a swivel base adjustment drive motor 25 connected to the drive system of the swivel base 18 is fixed. The drive motor 26 is fixed so that the rotational moment due to the weight of both drive motors 25, 26 about the first axis L1 is offset.

The drive motor 26 is connected to the pivot shaft 15 via a first drive train 27 , namely a drive gear 29 , an intermediate gear 30 , 31 and a gear 32 which are connected on the output shaft 28 of the drive motor 25 .

Further, the drive motor 25 is connected to the rotation support 18 via a worm shaft 35 and a worm wheel 36 connected to a second drive system 33, that is, an output shaft 34 of the drive motor 25.
is connected to.

The worm shaft 35 has a rotating shaft 38 connected to a transmission gear 44.4.
5, 46, and 47, and a worm gear 4 that meshes with the worm wheel 36 is mounted on this rotating shaft 38.
1 is supported so as to be movable in the axial direction.

Optical power is applied to the worm gear 41 in the axial direction by a spring 42 to eliminate backlash between the worm shaft 35 and the worm wheel 36.

When the drive motor 26 is operated in the above configuration, the swivel table 13 is tilted about the first axis L1, and the inclination angle of the grinding surfaces W1 to W4 of the workpiece W with respect to the grindstone G is adjusted.

Further, by the operation of the drive motor 25, the rotary support 18 is rotationally indexed about the second axis L2, and the grinding surfaces W1 to W4 of the workpiece W supported on the rotary support 18 are rotated.
correspond to the grindstone G in sequence.

As described above, in the present invention, the rotation is performed on one of the first and second horizontal lines extending parallel to the first axis at the same height position and equidistantly spaced on both sides of the first axis. A rotation indexing drive motor connected to a drive system of the support is fixed to a swivel base, and a swing adjustment drive motor connected to the drive system of the swivel base is fixed to the swivel base on the other horizontal line. Therefore, it is possible to prevent weight imbalance of the swivel base, and there are advantages that the inclination angle of the swivel base can be set with high precision.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of the posture adjustment device, FIG. 2 is a vertical sectional view of the posture adjustment device showing an embodiment of the present invention, and FIG.
The figure is a plan view taken in the direction of the arrow ``■'' in FIG. 2, and FIG. 4 is a side view taken in the direction shown in the arrow ``■'' in FIG. 10...Support stand, 13...Swivel stand, 1
8... Rotation support, 25... Drive motor for rotation indexing, 26... Drive motor for turning adjustment, Ll... First axis, L2... ...Second axis.

Claims (1)

[Scope of utility model registration request] a support base, and a first support base extending horizontally on the support base;
In the attitude adjustment device, the attitude adjustment device has a swivel base supported rotatably about an axis, and a rotation support supported rotatably about a second axis perpendicular to the first axis on the swivel base. The swivel base has a drive system for the rotary support on one of first and second horizontal lines extending parallel to the first axis at the same height and equidistantly spaced on both sides of the first axis. An attitude adjustment device characterized in that a rotation indexing drive motor connected to the rotation index drive motor is fixed, and a swing adjustment drive motor connected to the drive system of the swivel base is fixed on the other horizontal line.