JPH0414284B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to improvements in mounting methods and jigs for unit scale devices, and in particular to various unit scales such as optical and magnetic types used in machine tools, measuring devices, etc. The present invention relates to an improvement for simplifying the mounting and positioning method of a device.

[Conventional technology]

FIG. 6 shows an example of a conventional unit scale device. In the figure, 11 is the unit scale body, 12 is the detection head, 13R, 13L are the foot plates, 14 is the scale channel, 15, 1
6 is an alignment mark (reference point) for installation adjustment,
17 is a mounting surface for a machine tool or the like. Remove the unit scale body 1 from the machine tool, perform maintenance, and attach the foot plate 3R to the mounting surface 8 again.
3L, it is necessary to adjust the sliding surface of the machine tool so that it has the standard parallelism with respect to the back and top surfaces of the two alignment marks 15 and 16.

[Problem that the invention seeks to solve]

However, traditionally this adjustment was done using an electric micrometer,
Alternatively, this was done using a pick tester, etc., but this work required the necessary skills and was time consuming, and moreover, the alignment was hidden in a part of the machine tool to which it was installed. In such cases, the above work becomes extremely difficult.
Therefore, it is not easy for general users to carry out this installation work by themselves, and even if a service center or agency does the installation, the problem is that the workability is poor.

In addition, unit scale manufacturers also need to perform alignment work at two locations to achieve specified parallelism with the axis of the scale, and this work requires considerable skill and time, so it is important to reduce costs. was also a problem.

[Means for solving problems]

In order to solve the problems of the prior art, the present invention provides a unit scale device in which mounting reference portions are provided at both ends of the unit scale body and a scale is fixed to the mounting reference portions. When installing the scale to the receiving bracket, prepare a scale mounting jig that has mounting reference parts on both ends equivalent to the above-mentioned mounting reference parts, has a mounting reference surface, and is the same length as the scale body. The mounting reference part of the jig is received by the receiving metal fitting on the mounting surface to position the receiving metal fitting, and the receiving metal fitting is mounted on the mounting surface, and then the jig is removed;
The above-mentioned unit scale main body is attached to a receiving metal fitting.

[Effect]

The mounting reference part of the unit scale device is, for example, in the form of a sphere, and the foot base as a receiving metal fitting is provided with holes and grooves corresponding to the sphere.
A foot cover is attached to the foot base while receiving the sphere, and the unit scale body is attached.

During this installation, a scale installation jig is used to position the foot base on a predetermined installation surface such as a sliding surface of the machine tool. This jig has mounting reference parts equivalent to the mounting reference parts of the unit scale main body, for example, spheres at both ends, and is provided with mounting reference surfaces and has the same length as the unit scale main body. Since the foot base is positioned by receiving the sphere of the jig on the mounting surface, it can be easily mounted in that position. After that, remove the jig from the foot base and attach the unit scale body to the foot base.

〔effect〕

According to the present invention, the following effects can be obtained by using the above-described unit scale device and scale mounting jig.

(1) Since the installation work of the unit scale device can be simplified, the workability when installing by general users themselves is improved, and the serviceability of installation work by agencies and service centers is also improved.

(2) Since there is no need for a reference surface or alignment mark on the external shape of the scale device to align it parallel to the machine mounting surface, redundant work in manufacturing the scale device can be eliminated and the number of parts etc. can be reduced. It is possible to reduce costs from

(3) When positioning the foot base on a specified mounting surface of a machine, etc., the reference surface of the scale mounting jig can be used over a wide range, so any part of the surface can be parallel to the mounting surface, making the work much easier. .

〔Example〕

The present invention will be further explained below with reference to embodiments shown in the drawings. In FIGS. 1 to 4, 1 is a unit scale body, 2 is a scale channel,
3L and 3R are brackets, 4L and 4R are spheres as mounting reference parts, and 5 and 6 are receiving metal fittings for mounting and fixing the unit scale main body 1 corresponding to the mounting reference parts, for example, foot bases 5L and 5.
It consists of R and foot covers 6L and 6R. The bracket and the sphere are integrally formed, and the brackets 3L and 3R are fixed to both ends of the scale channel 2 so that the centers of the spheres 4L and 4R are on the central axis of the scale channel 2.

Foot bases 5L and 5R each have receiving holes 5L ₁ ,
A receiving groove _5R1 is formed, and the spheres 4L, 4R
The unit scale main body 1 is installed by fitting the foot covers 6L, 6R to the foot bases 5L, 5R with screws 7, 8 after fitting them into these receiving holes and grooves.

The foot bases 5L and 5R are installed in advance on a predetermined mounting surface 9 of a machine tool, measuring device, etc. via the mounting holes 10L and 10R, but in order to use this as a reference reference, the back of the foot base should be aligned with the same center as the sphere. It has an arc-shaped mounting reference surface R, and is mounted so that this surface abuts against the abutment surface A. Therefore, even if the foot base slightly rotates in the horizontal direction with respect to the mounting surface 9 about the sphere, it is structured to function as a reference surface.

To replace the unit scale body 1, all you need to do is remove the foot cover from the foot base, take out the unit scale body 1, attach other items to the foot base, and screw the foot cover again, and there is no need for alignment adjustment as in the past. be. In addition, the above-mentioned mounting reference part is not only spherical, but also
They may be of any combination of shapes, such as a cylinder, a cone, or a sphere on one side and a cylinder on the other. In particular, a sphere is advantageous in manufacturing because it is easy to center.

Further, the scale may be of any type, such as an optical type or a magnetic type.

Now, in the present invention, for example, a scale mounting jig 20 as shown in FIG. 5 is used for the work of mounting the above-mentioned unit scale device. This jig 20 has the same length as the unit scale main body 1, and has mounting reference portions 21 equivalent to the mounting reference portions at both ends, such as spheres 21L and 21R, and mounting reference surfaces 22 on the top and back surfaces. It is becoming. The mounting reference surface 22 has a length equal to the length of the scale, and is parallel to the axis of the unit scale body 1.

When installing the unit scale device, first, in order to position the foot bases 5L, 5R, the balls 21L, 21R of the jig 20 are received by the foot bases 5L, 5R, and the foot covers 6L, 6R are attached and fixed. Then, position the mounting reference surface 22 of the jig 20 relative to the machine by abutting it against the sliding surface or abutting surface of a machine tool, measuring device, etc., or by adjusting the parallelism using an electric micrometer or the like. Then, install the foot base mounting holes 10L, 10.
After processing R, attach the foot bases 5L and 5R to the specified mounting surface of the machine. After that, remove the jig 20 from the foot base, fit the mounting reference parts 4L, 4R of the unit scale body 1 into the foot bases 5L, 5R instead, and attach the foot cover 6.
Install with L and 6R.

In this case, as the scale mounting jig 20, one for each unit scale length is prepared, or one whose length is adjustable is used. Also, the mounting reference parts at both ends of the jig need only be aligned with those of the scale body.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an example of a unit scale device used in the present invention, FIG. 2 is a sectional front view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a top view thereof.
FIG. 5 is a schematic diagram showing an example of the scale mounting method according to the present invention, and FIG. 6 is a schematic diagram showing a conventional unit scale mounting method. 1... Unit scale body, 2... Scale channel, 3L, 3R... Bracket, 4L,
4R...Mounting reference part, 5, 6...Bracket fitting, 20
...Scale installation jig.

Claims (1)

[Scope of Claims] 1. When installing a unit scale device in which mounting reference parts are provided at both ends of the unit scale body and a scale is fixed to the mounting reference parts, to a receiving bracket in correspondence with the mounting reference parts, Prepare a scale mounting jig that has mounting reference parts on both ends that are equivalent to the above mounting reference parts, is provided with a mounting reference surface, and has the same length as the scale body, and the jig is mounted on the specified mounting surface. The unit scale body is positioned by receiving the mounting reference part of the scale body with the receiving metal fitting, and then the receiving metal fitting is positioned and attached to the mounting surface, and then the jig is removed and the unit scale body is attached to the receiving metal fitting. How to install unit scale equipment. 2.It has mounting reference parts on both ends that are equivalent to the mounting reference parts at both ends of the unit scale device, has a mounting reference surface, and is configured so that it can be set to the same length or the same length as the unit scale device. A mounting jig for a unit scale device, characterized by: