JPH0229466B2 - TOREESANOSEIDOCHOSEIJIGUTOSONOJIGUOSHOSHITACHOSEIHOHO - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tracer accuracy adjustment jig and an adjustment method using the jig, and more specifically, an adjustment jig having a step equal to a reference displacement amount, Apply a standard displacement amount to the tracer head using the adjustment jig,
This invention relates to an adjustment method for easily and reliably adjusting the accuracy of a tracer of a copying machine tool.

[Prior Art] Conventionally, gain adjustment of a tracer of a copying machine tool is performed by using a micrometer to give a reference displacement amount to each of the X, Y, and Z axes. To explain this using drawings, in Fig. 6,
A micrometer 62 is fixed in contact with the tip of the tracer head 60 in the same direction as the X-axis direction of the machine tool, and the scale a of the micrometer is read. Next, as shown in FIG. 7, the scale of the micrometer 62 is (a+εa).
A reference displacement amount εa in the X-axis direction is applied to the tracer head 60, and adjustment is made so that a reference output voltage Va is output from the output terminal of the tracer as shown by the solid line in FIG. tracer head 6
The gain adjustment in the Y-axis direction of the machine tool No. 0 is the same; the micrometer 62 is applied to the tip of the tracer 60 from the Y-axis direction and fixed, and after reading the scale a, the micrometer 62 is moved until the scale becomes a + εa. Then, the reference displacement amount εa of the machine tool in the Y-axis direction is applied to the tracer head 60 and adjusted so that the reference output voltage Va is output from the output terminal of the tracer. Gain adjustment of the tracer in the Z-axis direction was performed as shown in FIGS. 8 and 9. In Fig. 8, the tracer head 6 is viewed from the Z-axis direction of the machine tool.
0, fix the micrometer 62 and read the scale a, and as shown in FIG.
Apply the reference displacement amount εa to the tracer in the Z-axis direction of the machine tool until the scale of No. 2 reads a + εa, and then set the reference output voltage as in the case of the X-axis and Y-axis described above.
Adjust so that Va is output from the output terminal of the tracer.

[Problems to be Solved by the Invention] By the way, the conventional method for adjusting the accuracy of a tracer of a copying machine tool has the following problems. Firstly, since the micrometer is operated on a machine tool equipped with a tracer, there is a problem in that the working posture is poor and the work is difficult to perform.

Second, the reading of the micrometer scale is
There were also problems in that adjustment work was difficult to do because it changed from arbitrary point to arbitrary point, and it was easy to misread the micrometer.

Third, the position of the micrometer must be fixed each time each axis is adjusted, which causes problems in that setup is difficult and adjustment takes time.

The present invention was made in order to solve the above-mentioned problems in the accuracy adjustment method of a tracer of a copying machine tool. It is an object of the present invention to provide a tracer precision adjustment jig that can easily and reliably perform tracer gain adjustment by giving a certain amount of tracer gain, and an adjustment method using the jig.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has the following configuration.

A first aspect of the present invention is a fixed base having a guide plate extending along at least one of an X-axis and a Y-axis that are orthogonal to each other on a table surface of a machine tool, and having an upper surface parallel to the table and fixed to the table. a horizontal portion rotatably attached to the top surface of the fixed base, and a horizontal portion erected on the horizontal portion;
A vertical portion having a protrusion on the side surface that serves as a reference representing both the X-axis and Y-axis directions of the table surface, and the rotation of the horizontal portion is stopped at a position where the protrusion of the vertical portion is along the X-axis or Y-axis. a rotation stop member,
an X-axis/Y-axis reference displacement amount setting guide having a plurality of planes parallel to the table with steps equal to the reference displacement amount in the Z-axis direction perpendicular to the table; A Z-axis reference displacement setting plate that is movably attached along the top surface, and a plurality of cylindrical surfaces that are attached to the tracer head of the machine tool and have steps equal to the reference displacement amount in both the X-axis and Y-axis directions. The gist of the present invention is a tracer accuracy adjustment jig, which is characterized by comprising a cylinder having the following features.

Further, the second invention has a guide plate that extends along at least one of the X-axis and the Y-axis that are perpendicular to each other on the table surface of the machine tool, has an upper surface that is parallel to the table, and is fixed to the table. a fixed base; a horizontal portion rotatably attached to the upper surface of the fixed base; and erected on the horizontal portion;
A vertical portion having a protrusion on the side surface that serves as a reference representing both the X-axis and Y-axis directions of the table surface, and the rotation of the horizontal portion is stopped at a position where the protrusion of the vertical portion is along the X-axis or Y-axis. a rotation stop member, an X-axis/Y-axis reference displacement amount setting guide having: a Z-axis reference displacement setting plate which is movably attached to the top surface of the fixed base; and a step which is attached to the tracer head of the machine tool and which is equal to the reference displacement amount in both the X-axis and Y-axis directions. The following steps (a) to (d) are performed using a tracer precision adjustment jig comprising a cylinder having multiple cylindrical surfaces and The gist of this invention is a method for adjusting the accuracy of a tracer, which is characterized by performing the following steps in an arbitrary order.

(a) Position the fixing base on the machine tool using the guide plate so that the X-axis or Y-axis direction of the machine tool is parallel to the X-axis or Y-axis direction of the precision adjustment jig for the tracer. At the same time, the cylinder is attached to the tracer head of the machine tool.

(b) By rotating the horizontal part of the X-axis/Y-axis reference displacement setting guide on the top surface of the fixed base, the protrusion of the vertical part is positioned in the X-axis direction of the machine tool via the rotation stopper. Then, operate the machine tool to bring the protrusion of the vertical portion into contact with a predetermined outer peripheral surface of the cylinder, operate the machine tool in the X-axis direction to adjust the output voltage of the tracer to zero, and then, The tracer is moved in the Z-axis direction, the protrusion is brought into contact with the other outer peripheral surface of the cylinder to give a reference displacement amount to the tracer, and the gain of the tracer is adjusted so that the output voltage of the tracer becomes the reference output voltage. .

(c) By rotating the horizontal part of the X-axis/Y-axis reference displacement amount setting guide on the top surface of the fixed base, the protrusion of the vertical part is positioned in the Y-axis direction of the machine tool via the rotation stopper. Then, operate the machine tool to bring the protrusion of the vertical portion into contact with a predetermined outer peripheral surface of the cylinder, operate the machine tool in the Y-axis direction to adjust the output voltage of the tracer to zero, and then, The tracer is moved in the Z-axis direction, the protrusion is brought into contact with the other outer peripheral surface of the cylinder to give a reference displacement amount to the tracer, and the gain of the tracer is adjusted so that the output voltage of the tracer becomes the reference output voltage. .

(d) Operate the machine tool in the Z-axis direction, bring the tip of the cylinder into contact with a predetermined plane of the Z-axis reference displacement setting plate, and operate the machine tool in the Z-axis direction to adjust the output voltage of the tracer to zero. death,
Next, the Z-axis reference displacement setting plate is moved along the top surface of the fixed base, and the tip of the cylinder is brought into contact with the other plane of the Z-axis reference displacement setting plate to apply a reference displacement amount to the tracer. Adjust the gain of the tracer so that the output voltage becomes the reference output voltage.

[Effect] Next, the operation of the present invention will be explained.

The tracer precision adjustment jig of the present invention can be positioned on the table of a machine tool in either the X-axis direction or the Y-axis direction of the machine tool by means of a guide plate provided on a fixed base. When the rotation of the horizontal portion of the X-axis/Y-axis reference displacement setting guide is stopped by the rotation stop member, the protrusion of the vertical portion aligns with the X-axis or Y-axis. It is possible to position the machine tool in the X-axis and Y-axis directions, each cylindrical surface of the cylinder has a step equal to the reference displacement amount in both the X-axis and Y-axis directions, and each plane of the Z-axis reference displacement setting plate Since the level difference is equal to the reference displacement amount in the Z-axis direction,
It works to give reference displacement amounts in the axial direction and Z-axis direction.

On the other hand, in the adjustment method using the jig of the present invention, the protrusion of the X-axis/Y-axis reference displacement amount setting guide is brought into contact with a predetermined outer peripheral surface of the cylinder attached to the tracer to adjust to the zero point, and then the cylinder is adjusted to the zero point. By moving the tracer in the Z-axis direction, a reference displacement amount in the X-axis direction or Y-axis direction is given to the tracer. Therefore, if the tracer output is adjusted to the reference output voltage, the tracer's It works to enable directional gain adjustment. In addition, the adjustment method using the jig of the present invention is to bring the tip of the cylinder attached to the tracer into contact with a predetermined plane of the Z-axis reference displacement setting plate and adjust it at the zero point.
By moving the Z-axis reference displacement setting plate along the top surface of the fixed base, a reference displacement amount in the Z-axis direction is given to the tracer, so if the output of the tracer is adjusted to the reference output voltage, the Z-axis of the tracer can be adjusted. It works to enable directional gain adjustment. As described above, each component of the present invention functions to solve the technical problem of the present invention.

[Example] Examples of the present invention will be described below based on the drawings.
FIG. 1 is a front view of an embodiment of the tracer precision adjustment jig of the present invention, and FIG. 2 is a side view thereof. In Figure 1, tracer accuracy adjustment jig 8
The guide 10 is cut out integrally into a substantially L-shape, and a through hole 16 for attachment is bored in the center of the horizontal portion 12. A rotating shaft 18 that fits into the through hole 16 is inserted into the through hole 16, and the lower end 18a of the rotating shaft 18 is connected to the through hole 16.
It is fixed to the base plate 20 via. The head 18b of the rotating shaft 18 is thicker than the through hole 16, and is configured to press down on the horizontal portion 12 of the guide 10 to prevent the guide 10 from coming off the rotating shaft 18. A spring storage hole 22 is perpendicularly formed inside the vertical portion 14 upward from the bottom surface 14a, and a compression spring 24 and a steel ball 26 are housed in the hole 22. Concave spherical surfaces 28 for positioning are machined on the surface of the base plate 20 at intervals of 90 degrees in the X-axis and Y-axis directions, and the steel that has been moved by the rotation of the guide 10 is placed on these concave spherical surfaces 28. The ball 26 is inserted and the guide 10 is stopped at that position. When the guide 1 stops, the tip side surface 14b of the vertical portion 14 of the guide 10 is positioned in the X-axis direction or the Y-axis direction, and the protrusion 30 provided on the tip side surface 14b is positioned parallel to the X-axis or Y-axis. become.

On the other hand, as shown in FIG. 2, the plate 32 is an elongated plate having two planes 34a and 34b with a step A equal to the reference displacement amount in the Z-axis direction, and an inclined plane between the upper plane 34b and the lower plane 34a. The surface 34c is fitted into a slide guide groove 36 provided on the surface of the base plate 20, as shown in FIG. A slide guide hole 38 is provided on the back surface of the base plate directly below the slide guide groove 36, and a long hole 40 is provided between the slide guide groove 36 and the slide guide hole 38. A tightening bolt 42 is inserted through the elongated hole 40 from the side of the slide guide hole 38 on the back surface and screwed to the back surface of the plate 32. The base plate 20 is fixed to the magnetic base 44 with bolts. A guide plate 48 for positioning to the machine tool table 46 is attached to the side surface of the magnet base 44. As shown in FIG. 2, the lower end of this guide plate 48 hangs down from the side surface of the magnet base 44 so as to come into contact with the side surface of the T-groove 50 of the table. Reference numeral 52 denotes a magnet-based switch, and when turned on, the adjustment jig 8 is magnetically fixed to the machine tool table 46.

As shown in FIG. 1, the cylinder 54 is machined to have two diameters: a lower cylindrical surface 56a and an upper cylindrical surface with a radius larger by the reference displacement amount in the X-axis and Y-axis directions. 56b. There is an inclined surface 56c between the lower cylindrical surface 56a and the lower cylindrical surface 56b, so that the cylinder 5
A step B equal to the reference displacement amount is generated between the lower cylindrical surface 56a and the upper cylindrical surface 56b of 4. A spherical protrusion 58 is provided at the tip of the cylinder 54. This cylinder 54 is fitted into the tracer head 60 and screwed at two locations on the side.

A method for adjusting tracer accuracy using the tracer accuracy adjustment jig 8 of this embodiment will be explained as follows. First, adjustment in the X-axis direction will be explained.

(a) As shown in Figure 2, the guide plate 48 is brought into contact with the side surface of the T-groove 50 of the table, the tracer precision adjustment jig 8 is positioned parallel to the X-axis or Y-axis of the machine, and the magnetic base is 44, the switch 52 is turned on and the tracer accuracy adjustment jig 8 is moved to the table 46.
Fixed to.

(b) Fit the cylinder 54 to the tracer head 60 and screw it in place.

(c) The guide 10 is rotated around the rotation axis 18 by a steel ball 26 built in the vertical portion 14 of the guide 10.
The concave spherical surface 28 for positioning provided on the surface of the base plate 20 allows the protrusion 30 provided on the tip side surface 14b of the vertical portion 14 of the guide 10 to be
position in the X-axis direction.

(d) As shown in FIG. 10, the lower cylindrical surface 56a of the cylinder 54 is brought into contact with the protrusion 30 using the mechanical operation of the machine tool, and the machine origin is moved in the X-axis direction, as shown in FIG. , so that the tracer output voltage Vo′ becomes the reference output voltage Vo.
Perform point adjustment. As shown in the figure, the zero point adjustment of the tracer is performed by adjusting the output voltage Vo' generated in the tracer-free state to the reference output voltage Vo.
Give the displacement (εo' → εo) and adjust the zero point of the tracer.

(e) Next, as shown in FIG. 11, the tracer head 60 to which the cylinder 54 is attached is lowered along the guide 10 in the Z-axis direction to bring the guide 10 into contact with the upper cylindrical surface 56b of the cylinder 54. As a result, the tracer head 60 has a lower cylindrical surface 5.
The reference displacement amount εa can be given by the step B between the upper cylindrical surface 6a and the upper cylindrical surface 56b. At that time, adjust the tracer output voltage to Va using the potentiometer. As shown in Figure 3, the output voltage from a tracer with a built-in differential transformer changes phase by 180° with respect to the excitation phase with the midpoint as the border, and the output voltage V is proportional to the displacement ε. The gain is adjusted so that when the reference displacement amount εa is applied to the tracer head 60, the output voltage from the tracer becomes Va. That is, the principle of tracer gain adjustment is as shown in FIG. 5, in which a reference displacement amount is given and the potentiometer is adjusted so that the tracer output voltage Vb at that time becomes the reference output voltage Va.

Next, adjustment in the Y-axis direction will be explained.

(f) Rotate the guide 10 by 90 degrees to position the protrusion 30 on the Y axis.

(g) In the same way as shown in Figure 10, the lower cylindrical surface 56a of the cylinder is brought into contact with the protrusion 30 using the mechanical action of the machine tool, and the mechanical action in the Y-axis direction is used to apply displacement and output the tracer. Adjust the O point of the voltage.

(h) As shown in FIG. 11, apply a reference displacement amount to the tracer and adjust the gain of the tracer in the same manner as in (e).

Next, adjustment in the Z-axis direction will be explained.

(i) As shown in FIG. 12, the spherical protrusion 58 at the tip of the cylinder 54 is brought into contact with the lower plane 34a of the plate 32 using the mechanical operation of the machine tool, and the Z
Displacement is applied using mechanical motion in the axial direction, and O point adjustment is performed so that the tracer output voltage Vo' becomes the reference output voltage Vo as shown in FIG.

(j) Next, as shown in FIG. 13, move the plate 32 in parallel in the X-axis direction or Y-axis direction by hand. Then, the spherical protrusion 58 comes into contact with the upper flat surface 34b from the lower flat surface 64a via the inclined surface 34c. Therefore, the tracer head 60 has a height difference A between the upper plane 34b and the lower plane 34a.
Since it is displaced by .epsilon., a reference displacement amount εa can be given. Thereafter, adjust the tracer output voltage to the reference output voltage Va using a potentiometer.

As explained above, the tracer precision adjustment jig of this embodiment has a concave spherical surface 26 provided on a base plate with a steel ball 26 biased by a compression coil spring 24.
8 and stops the horizontal portion 12 of the guide 10, the protrusion 30 provided on the tip side surface 14b of the vertical portion 14 is positioned in the X-axis direction of the machine tool. Positioning is extremely easy and can be done reliably.

Further, since the protrusion 30 is arranged to be in contact with the cylinder 54, the O point can be adjusted accurately.

Further, since the stepped portions of the cylinder 54 and the plate 32 are all sloped surfaces 34c and 56c, the reference displacement amount can be smoothly applied to the tracer head 60.

Note that in this embodiment, a method of adjusting the accuracy of the tracer in the order of the X-axis, Y-axis, and Z-axis was shown, but
This order is not necessarily limited to this, but Y
The axis may be adjusted before the X axis, or the
There is no problem in adjusting the Z-axis before adjusting the Y-axis.

Also, when adjusting the Z axis, the plate 32
Although the table was moved by hand, the effects of the present invention can also be obtained by moving the table by a table feeding operation of a machine tool.

Furthermore, the cylinder 54 and the plate 32 are
Although a two-stage structure with one step each is used, a multi-stage structure with a plurality of steps may be used depending on the required accuracy of the machine tool.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way, and it goes without saying that it can be implemented in various forms without departing from the gist of the present invention.

[Effects of the Invention] As explained above, the present invention includes an X-axis/Y-axis reference displacement amount setting guide, a cylinder having a step equal to the X-axis and Y-axis reference displacement amount, and a step equal to the Z-axis reference displacement amount. By using a tracer accuracy adjustment jig consisting of a Z-axis reference displacement setting plate and using the mechanical movement of the machine tool, the reference displacement amount can be easily and quickly and reliably given to the tracer, making it easy and reliable. This has the excellent effect of allowing highly accurate adjustment of the tracer gain.

In addition, the tracer precision adjustment jig of the present invention is small and lightweight, making it easy to carry.Moreover, it can be easily set on the table of a machine tool in the X- and Y-axis directions using a fixed base equipped with a guide plate. Since the tracer can be fixed to the position, it is easy to set up the tracer adjustment, and there is an advantage that no skill is required for the work.

Furthermore, since the accuracy adjustment of the tracer uses a tracer accuracy adjustment jig and mechanical operation, the working posture during preparation work is good and the number of work steps is reduced.

Furthermore, in one setup, the rotation axis can be used to
Since O-point adjustment and gain adjustment can be performed in all directions of the Y-axis and Z-axis, there is also the advantage that work efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the tracer accuracy adjustment jig of the present invention, FIG. 2 is a side view thereof, and FIG.
The figure is an explanatory diagram showing the relationship between the amount of displacement given to the tracer and the output voltage of the tracer, Figure 4 is an explanatory diagram to explain the principle of adjusting the O point of the tracer, and Figure 5 is an explanatory diagram explaining the principle of adjusting the gain of the tracer. Figure 6 is an explanatory diagram for
Explanatory diagram explaining the adjustment method in the axial and Y-axis directions, No. 7
The figure is an explanatory diagram showing how to adjust the gain in the X-axis and Y-axis directions using a conventional micrometer. Figure 8 is an explanatory diagram showing how to adjust the gain in the Z-axis direction using a conventional micrometer. An explanatory diagram showing a gain adjustment method in the Z-axis direction using a conventional micrometer, and FIG. 10 explains a method for adjusting the O point in the X-axis and Y-axis directions using a tracer precision adjustment jig according to an embodiment of the present invention. The explanatory diagram, Figure 11, also shows the X-axis and Y-axis.
FIG. 12 is an explanatory diagram for explaining gain adjustment in the axial direction, FIG. 12 is an explanatory diagram for explaining the O point adjustment in the Z-axis direction, and FIG. 13 is an explanatory diagram for explaining the gain adjustment in the Z-axis direction. 8... Tracer accuracy adjustment jig, 10... Guide, 18... Rotating shaft, 20... Base plate,
32...Plate, 34a...Lower plane, 34b
... Upper plane, 44 ... Magnetic base, 46
...Machine tool table, 54...Cylinder, 56
a...Lower cylindrical surface, 56b...Upper cylindrical surface, 60
...Tracer head.

Claims (1)

[Claims] 1. Xs that are orthogonal to each other on the table surface of a machine tool
a fixed base having a guide plate extending in the axial direction of at least one of the axis and the Y-axis, having an upper surface parallel to the table and fixed to the table; an attached horizontal part, and an erected one on the horizontal part,
A vertical portion having a protrusion on the side surface that serves as a reference representing both the X-axis and Y-axis directions of the table surface, and the rotation of the horizontal portion is stopped at a position where the protrusion of the vertical portion is along the X-axis or Y-axis. a rotation stop member,
an X-axis/Y-axis reference displacement amount setting guide having a plurality of planes parallel to the table with steps equal to the reference displacement amount in the Z-axis direction perpendicular to the table; A Z-axis reference displacement setting plate that is movably attached along the top surface, and a plurality of cylindrical surfaces that are attached to the tracer head of the machine tool and have steps equal to the reference displacement amount in both the X-axis and Y-axis directions. A precision adjustment jig for a tracer, comprising: a cylinder having a cylinder; 2. The tracer accuracy adjustment jig as set forth in claim 1, wherein the fixing base is constituted by a magnetic base and is magnetically fixed to the table. 3 Xs perpendicular to each other on the table surface of the machine tool
a fixed base having a guide plate extending in the axial direction of at least one of the axis and the Y-axis, having an upper surface parallel to the table and fixed to the table; an attached horizontal part, and an erected one on the horizontal part,
A vertical portion having a protrusion on the side surface that serves as a reference representing both the X-axis and Y-axis directions of the table surface, and the rotation of the horizontal portion is stopped at a position where the protrusion of the vertical portion is along the X-axis or Y-axis. a rotation stop member,
an X-axis/Y-axis reference displacement amount setting guide having a plurality of planes parallel to the table with steps equal to the reference displacement amount in the Z-axis direction perpendicular to the table; A Z-axis reference displacement setting plate that is movably attached along the top surface, and a plurality of cylindrical surfaces that are attached to the tracer head of the machine tool and have steps equal to the reference displacement amount in both the X-axis and Y-axis directions. It consists of each of the following steps (a) to (d) using a cylinder with a tracer and a tracer accuracy adjustment jig comprising: First, perform step (a), then perform the other steps in any order. A tracer accuracy adjustment method characterized by: (a) Position the fixing base using the guide plate so that the X-axis or Y-axis direction of the machine tool is parallel to the X-axis or Y-axis direction of the precision adjustment jig for the tracer, and place the fixed base on the machine tool. It is fixed to the top surface of the table and the cylinder is attached to the tracer head of the machine tool. (b) By rotating the horizontal part of the X-axis/Y-axis reference displacement setting guide on the top surface of the fixed base, the protrusion of the vertical part is positioned in the X-axis direction of the machine tool via the rotation stopper. Then, operate the machine tool to bring the protrusion of the vertical portion into contact with a predetermined outer peripheral surface of the cylinder, operate the machine tool in the X-axis direction to adjust the output voltage of the tracer to zero, and then, The tracer is moved in the Z-axis direction, the protrusion is brought into contact with the other outer circumferential surface of the cylinder to apply a reference displacement to the tracer, and the gain of the tracer is adjusted so that the output voltage of the tracer becomes the reference output voltage. (c) By rotating the horizontal part of the X-axis/Y-axis reference displacement amount setting guide on the top surface of the fixed base, the protrusion of the vertical part is positioned in the Y-axis direction of the machine tool via the rotation stopper. Then, operate the machine tool to bring the protrusion of the vertical portion into contact with a predetermined outer peripheral surface of the cylinder, operate the machine tool in the Y-axis direction to adjust the output voltage of the tracer to zero, and then, The tracer is moved in the Z-axis direction, the protrusion is brought into contact with the other outer circumferential surface of the cylinder to apply a reference displacement to the tracer, and the gain of the tracer is adjusted so that the output voltage of the tracer becomes the reference output voltage. (d) Operate the machine tool in the Z-axis direction, bring the tip of the cylinder into contact with a predetermined plane of the Z-axis reference displacement setting plate, and operate the machine tool in the Z-axis direction to adjust the output voltage of the tracer to zero. death,
Next, the Z-axis reference displacement setting plate is moved along the upper surface of the fixed base, and the tip of the cylinder is brought into contact with the other plane of the Z-axis reference displacement setting plate to apply a reference displacement amount to the tracer. Adjust the gain of the tracer so that the output voltage becomes the reference output voltage.