JP2002048885A - Table for fixing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table for fixing easily fixing a measuring material to a measuring device and fixing a workpiece to a machine tool as a machining tool. SOLUTION: The table for fixing in this invention consists of a base stage 2 attaching to a measuring device, an inclined table 6 constituting a sine bar together with the base stage 2 by lifting one end on the other end as a fulcrum, and a rotating plate 7 supported to the inclined table 6 rotatably on the axis. The inclined table 6 has fulcrum parts 19 and 20 to be fulcrum on both sides of one end and a seat 18 touching a block gage 17 in the middle of the other end. On both sides of the one end of the base stage 2, hooking rods 4 and 5 hooking with the fulcrum parts 19 and 20 stand on both sides of one end of the base stage 2 and a connection spring 3 is bridged between the base stage 2 and the inclined table 6 so that the inner sides of the fulcrum parts 19 and 20 always press the hooking rods 4 and 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing table for fixing an object to be measured on a measuring device or for fixing a work as a machining tool to a machine tool.

[0002]

2. Description of the Related Art Various measuring devices are usually provided with fixing tools corresponding to the measuring devices. For example, in a grinding device, when measuring the surface or contour of a machined workpiece with a laser beam or the like and machining another workpiece with the same dimensions as the first workpiece with a grinding tool, a measuring device In addition, a fixing table for fixing the first workpiece is required. In addition, tools for measuring the physical properties of an article or measuring the material of the article also require tools for fixing the article to be measured to the measuring device.

[0003] When a workpiece is fixed to a machine tool for performing electric discharge machining, a rotary table is conventionally used. This conventional rotary table is provided with a reduction gear mechanism and a worm reduction mechanism in a rigid housing, and the rotational force of the motor is reduced in multiple stages by the reduction gear mechanism and the worm reduction mechanism to apply a rotational torque to the rotary table. .

[0004]

However, since the fixing tool provided in the measuring apparatus has been mainly focused on fixing, an angle is accurately set or rotated in the measurement. Such things were not taken into account. In the table of the measuring device used in the grinding of the above-mentioned grinding device, if it is fixed at a certain angle, its state needs to be fixed again in order to change its state, and moreover, it has to be three-dimensional with an accurate inclination angle. Could not be measured.

Further, the conventional rotary table has a complicated structure due to the provision of a reduction gear mechanism and a worm reduction mechanism, and has a large volume, which is not suitable for easily processing a workpiece. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and enables a three-dimensional measurement by rotating a fixed object while tilting the object at a predetermined accurate angle. It is another object of the present invention to provide a fixing table that can easily fix a workpiece as a machining tool to a machine tool and has a simple structure.

[0007]

A fixing table according to the present invention comprises a base mounted on a measuring device, a machine tool, or the like, and a sine bar formed by the base with the other end standing with one end as a fulcrum. The tilt table is constituted by a tilt table and a rotary plate rotatably supported on the tilt table. The tilt table has a fulcrum portion which serves as an upright fulcrum at one end and is mounted on a block gauge at the other end. A locking lot that engages with the fulcrum portion is provided upright on one end side of the base, and a connection spring is provided on the base such that the inside of the fulcrum portion always presses against the locking rod. It spans between inclined tables.

[0008] According to the above configuration, if the block gauge is interposed between the base and the tilt table, the tilt table can be tilted at an accurate angle, and the measurement can be performed while the workpiece is tilted. Furthermore, by rotating the rotating plate, the object to be measured can be rotated in an inclined state, and the object to be measured can be measured three-dimensionally.

When the fixing table of the present invention is used as a machining tool of a machine tool for fixing a work, the work can be easily fixed with a very simple structure, and the fixing angle can be reduced. Easy to change

[0010]

Next, embodiments of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is a plan view of a fixing table according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. FIG. 4 is a cross-sectional view of FIG.
It is a B sectional view.

The fixing table 1 is a measuring fixed table for fixing an object to be measured to a measuring device, and is made of a metal (for example, iron) and has a rectangular base having a predetermined thickness. A tilting table 6 is superimposed on the base 2 at a desired angle by a connecting spring 3 and locking lots 4 and 5, and a rotating plate 7 is rotatably supported on the upper surface of the tilting table 6. .

The base 2 is a rectangular thick plate, and the inclined table is provided on both sides of one end of the base 2 (the left side in FIG. 1 is one end and the right side is the other end). Column-shaped locking rods 4 and 5 for locking the lock 6 stand upright. The lower portions of the locking rods 4 and 5 are fitted and fixed in circular holes formed on both sides of one end of the base 2, and the upper portions protrude upward from the surface of the base.

A notch 8 on the side of the base 2 through which the connecting spring 3 passes is formed in the center of the base 2 in the longitudinal direction. The notch 8 on the base 2 side is a notch of a semicircular long hole at both ends in plan view as shown by a dashed line 9 in the central longitudinal direction of FIG. The base 2 is formed so as to penetrate from the front side to the bottom side.

The inclined table 6 also has a notch 10 on the inclined table side. As shown by a solid line 11 in the central longitudinal direction of FIG.
It has the same shape as the notch 8 on the side of the base 2, overlaps the notch 8 on the side of the base about half in plan view, and the connecting spring 3 straddles the base 2 and the inclined table 6. It is formed so that it can be installed diagonally.

At the other end of the notch 8 on the base 2 side, a locking recess 13 for fitting a pin 12 for locking the other end of the connecting spring 3 to the base 2 is formed. As shown in FIG. 3, the locking recess 13 has an oval shape, is formed in the width direction of the base 2, and opens to the bottom of the base 2.

At one end of the notch 10 of the tilt table 6, a locking recess 15 for fitting a pin 14 for locking one end of the connecting spring 3 to the tilt table 6 is formed. The locking recess 15 is opened on the upper surface side of the inclined table 6, has the same shape as the locking recess 13, and is on the same line in the longitudinal direction of the base 2 in plan view in FIG. As shown in FIGS. 2 and 4, the locking recess 15 of the tilt table 6 is in the upper position in the vertical direction.

The connecting spring 3 is connected to the base 2 as described above.
And inclined table 6 are arranged in notches 8 and 10, and both ends are locked by locking pins 12 and 14. The tilt table 6 is urged obliquely downward by the connection spring 3 and is in contact with the base 2. However, the two locking rods 4 and 5 prevent the tilt table 6 from sliding in the urging direction. Has been stopped. The base 2 and the tilt table 6 are not separated by the connecting spring 3 and the locking rods 4 and 5, and the tilt table 6 can be tilted at a predetermined tilt angle.

Reference numeral 16 denotes a screw hole for fixing the base 2 to a measuring device (not shown), which is formed through the base 2. The tilt table 6 has substantially the same width and thickness as the base 2 and a slightly shorter length. As shown in FIG. 5, the block gauge 17 allows the tilt table 6 and the base 2 to function as a sine bar, and the tilt table 6 can be tilted at an accurate angle.

On the lower surface of the central portion on the other end side in the longitudinal direction of the tilt table 6, a seating portion 1 mounted on the upper surface of the block gauge 17 is provided.
8 is formed to protrude downward, and fulcrum portions 19 on both sides on one end side;
A projection 20 is formed. The point P1 where the seating portion 18 contacts the block gauge 17, the fulcrum portions 19 and 20, and the base 2
S1 and R2 are provided on the inside of the seating portion 18 and the outside of the fulcrums 19 and 20 so that the distance L between the contact point P2 and the contact point P2 is always constant.

Inside the fulcrum portions 19 and 20, the seating portion 1 is provided.
8, a radius R3 smaller than the radius R1, R2 attached to the fulcrum portions 19, 20 is provided, so that the tilt table 6 does not tilt in the left-right direction in the side view of FIG. The other end of the table 6 does not tilt in the vertical direction. Thus, the parallelism is always maintained even when the tilt table 6 is tilted at a predetermined angle.

The locking rods 4, 5 are fitted into concave portions 21, 22 formed on both sides of one end side of the inclined table 6 with a certain degree of freedom, and the urging force of the connecting spring 3 causes the inside of the fulcrum portions 19, 20. Are configured to be pressed against each other. Even if the other end side of the tilt table 6 is tilted upward by this pressing force and the biasing force of the connecting spring 3 obliquely downward, the base 2 and the tilt table 6 are not disjointed without any hinge connection. You can play the role of a bar.

The bearing 2 is located near the other end of the tilt table 6.
The rotary plate 7 is rotatably mounted on the bearing 23. That is, as shown in FIG. 4, a shaft hole is formed near the other end of the tilt table 6, and a shaft 25 having a flange 24 in this shaft hole is connected to the dry bearing 2.
6 so as to be rotatable.

A positioning pin 28 is press-fitted into a central through hole 27 of the shaft 25, and a protruding portion of the pin 28 is inserted and positioned in a center hole 29 of the rotating plate 7, and the rotating plate 7 is fixed from below by a fixing screw 30. It is fixed to the shaft 25.

The rotary plate 7 is configured to rotate intermittently like a ratchet mechanism. That is, a plurality of locking holes 31 are formed in a circle around the center hole 29 of the rotating plate 7 at equal intervals around the center hole 29, and the loading holes 32 of the inclined table 6 are formed.
The ball 33 fitted into the ball 33 is urged toward the rotating plate 7 by a spring 34 so that the upper portion of the ball 33 is locked in the locking hole 31 and rotates intermittently. 3
Reference numeral 5 denotes a set screw for stopping the rear end of the spring 34.

Next, the operation of the above configuration will be described. FIG. 4 shows a state where the rotating plate 7 is horizontal. When the tilt table 6 and the rotary plate 7 are tilted to a predetermined angle from this state, a block gauge 17 having a predetermined height is inserted between the seat 18 and the base 2.

The inclination angle of the inclination table 6 with respect to the base 2 is represented by the equation sin α = H / L. As shown in FIG. 5, L is the horizontal distance between the point P1 of the seating portion 18 and the point P2 of the fulcrum portions 19 and 20, and this distance L is always constant even when the tilt table 6 is tilted. , R1 and R2 are attached to the inside of the seat portion 18 and the outside of the fulcrum portions 19 and 20, respectively. H is the height of the block gauge.

FIG. 5 shows that the tilt table 6 is
The case where it is inclined by 5 ° is shown. Even if it tilts in this manner, the tilting table 6 is urged to the lower right by the connecting spring 3, and the radius R 3 inside the fulcrums 19, 20 is locked to the locking rods 4, 5. Since the fulcrum portions 19 and 20 and the locking lots 4 and 5 are provided at two locations on the left and right sides, the parallelism of the tilt table 6 is maintained. Moreover, the fulcrum 1
Since R2 is also attached inside 9 and 20,
The parallelism of the tilt table 6 is maintained, and the distance L between the points P1 and P2 is always constant.

FIG. 6 shows that the tilt table 6 and the rotary plate 7 are 45
The figure shows the case where it is inclined. Even if the rotating plate 7 is inclined by 45 °, the function of the sign bar can be sufficiently performed. Also in this case, the horizontal distance L between the points P1 and P2 is kept constant, and the parallelism of the tilt table 6 is maintained even when the tilt table 6 is tilted at 45 °.

Next, the use state of the fixing table will be described. As shown in FIGS. 7 and 8, the fixing table 1 needs to have a fixing table 40 attached to the rotating plate 7. In this embodiment, a rectangular side plate 41 is placed on both ends of the rotating plate 7, and the screws 4 are mounted from below the rotating plate 7.
Fix with 2. A ring-shaped table 43 is placed on the side plate 41, and two places are fixed with decorative screws 44.

The table 43 is provided with four stopper rods 45. The stopper rod 45 is inserted into an insertion hole penetrating inward from the outside of the table 43, and the rear end thereof is fixed by a decorative screw 46. Note that the tip of the stopper rod 45 may be simply a thin projection, or the projection 47 may be retracted by a spring 48.

When using the fixing table 40 having the above-described structure, the object to be measured (not shown) is fixed between the four stopper rods 45. If the decorative screw 46 is loosened depending on the size of the measured object, the stopper rod 45
Can be slid to change its fixed position to accommodate objects of various sizes.

When the fixed base 40 is rotated, the rotary plate 7 may be rotated as described above, and when the fixed base 40 is inclined, the block gauge 17 is moved to the base 2 as described above.
And the tilt table 6.

FIGS. 9 and 10 show an example in which the fixing base 50 is modified. Although the fixing table 40 of the above embodiment fixes the ring-shaped table 43 on the side plate 41, in the case of this embodiment, a square table 51 is fixed on the side plate 52. The table 51 of the fixing base 50 is formed in a quadrangular shape by fixing the ends of four bars 53 with screws 54.

Four stopper rods 55 are inserted through insertion holes formed horizontally inward from the outside of the two opposing bars 54 and inward, and the rear ends thereof are fixed by decorative screws 56. The tip of the stopper rod 55 is also simply a thin projection, and the projection 57 is
There are those who leave by 8.

In the above-described embodiment, the fixed bases 40 and 50 as shown in FIGS. 7 to 10 are attached to the rotary plate 7. However, the present invention does not necessarily require such fixed bases. It may be attached to the rotating plate 7. (Second Embodiment) FIG. 11 is a plan view of a fixing table according to a second embodiment of the present invention, and FIG.
13 is a bottom view, FIG. 14 is an explanatory diagram showing an operating state, and FIG. 15 is a use state diagram. The second embodiment is a fixing table for fixing a workpiece as a machining tool to a machine tool. The basic configuration of the second embodiment is the same as that of the first embodiment. Therefore, in the following description, the same members as those of the first embodiment will be denoted by the same reference numerals. Detailed description is omitted.

As shown in FIG. 13, the base 2 is a thick T-shaped metal plate, the head 2A is wider than the bar 2B, the total length of the base 2 is longer than the inclined table 6, and the base 2 Is protruded from the other end of the inclined table 6. Rod part 2B
The screw hole 16 formed at the other end of the screwdriver can fit a screw without being disturbed by the inclined table 6 in a plan view.

On both sides of the head 2A of the base 2 near the center on one end side, cylindrical locking rods 4 and 5 for locking the tilt table 6 are erected and protrude upward from the surface of the base 2. I have. Further, screw holes 16 for fixing the base 2 to the machine tool are formed on both sides of the other end of the head 2A of the base 2.

A notch 8 on the side of the base 2 for passing the connecting spring 3 is formed near one end in the longitudinal center of the base 2. As shown in FIG. 13, the notch 8 on the side of the base 2 has a semicircular long hole at both ends, and is formed so as to penetrate from the front side to the bottom side of the base 2 as shown in FIG. The other end has a step 6 for screwing the hook screw 60.
1 is formed.

The inclined table 6 is a rectangular thick metal plate body, and is formed with a rectangular groove 62 having an open end at the center longitudinal direction at one end, and a cutout at the base side in plan view. The main part overlaps with the part 8 so that the connecting spring 3 can be installed diagonally across the base 2 and the inclined table 6. A hook screw 63 for locking the connection spring 3 is screwed into one end of the groove 62 of the inclined table 6, and the connection spring 3 is stretched between the hook screw 63 and the hook screw 60.

Supporting portions 19 and 20 are formed on both sides of one end of the tilt table 6 in the longitudinal direction, and a seating portion 18 mounted on the upper surface of the block gauge 17 is formed on the lower surface at the center of the other end. Have been.

Inside the seating portion 18 and outside the fulcrum portions 19 and 20 are provided R1 and R2 for sign bars, and inside the fulcrum portions 19 and 20, the seating portion 18 and the fulcrum portion 19 are provided.
A round R3 smaller than the rounds R1 and R2 of FIG. The function of these rounds is the same as that of the first embodiment, and a detailed description will be omitted.

The inclined table 6 has considerably large concave portions 21 and 22 formed on both sides on one end side.
Are fitted inside one ends of the recesses 21 and 22, and the inner wall surfaces of the recesses 21 and 22 on one end side are pressed against the locking rods 4 and 5 by the urging force of the connection spring 3. Even if the other end side of the tilt table 6 is tilted upward by this pressing force and the biasing force of the connecting spring 3 obliquely downward, the base 2 and the tilt table 6 are not disjointed without any hinge connection. You can play the role of a bar. In addition, since the screw holes 16 can be seen from the concave portions 21 and 22 in a plan view, screws can be fitted without being disturbed by the inclined table 6.

The bearing 23 provided near the other end of the tilt table 6 is basically the same as that of the first embodiment, and as shown in FIG. A shaft hole having a flange 24 is formed in the shaft hole with a dry bearing 26.
The rotation plate 7 is rotatably fitted to the bearing 23 via the bearing 23. Note that the positioning pin 28 and the fixing screw 30 perform the same operation as in the first embodiment.

Unlike the first embodiment, the rotary plate 7 has a small disk overlapping a large diameter disk and a screw hole 64 for fixing the chuck 68 or the like near the outer peripheral edge.
Are formed at equal intervals. However, this rotating plate 7
This is basically the same as in the first embodiment, and the rotating plate 7 rotates intermittently around the center hole 29.

A lock 65 is attached to one end of the tilt table 6 adjacent to the rotating plate 7. This lock 65
Is provided for fixing the rotating plate 7 so that the rotating plate 7 does not rotate and rattle when machining the workpiece by the machine tool. The lock 65 has a leg 66 projecting downward at one end of the rectangle, and is entirely separated from the surface of the rotating plate 7, and the other end having a step overlaps the outer peripheral edge of the rotating plate 7. I have. This lock 65
A through hole is formed in the center of the rotary member, and an adjusting screw 67 is inserted into the through hole and screwed to the rotating plate 7 to adjust the tightening force of the rotating plate 7.

FIG. 14 shows a state where the inclination table 6 is inclined at a predetermined angle by inserting a block gauge 17 of a predetermined height between the seating portion 18 and the base 2. Base 2
As described in the first embodiment, the inclination angle of the inclination table 6 with respect to is changed depending on the size of the block gauge 17 to be inserted.

The connecting spring 3 is connected to the tilt table 6.
To the lower right to lock the tilt table 6 with the locking rods 4, 5.
And the inside of the seating portion 18 and the fulcrum portions 19, 2
The roles of the rounds R1, R2, and R3 attached to the outside of 0 are also the same as those described in the first embodiment, and thus the details are omitted.

When the fixing table of this embodiment is used, a screw is fitted into the screw hole 16, the fixing table 1 is firmly screwed to the machine tool, and the chuck 68 is screwed to the rotating plate 7. Fixed by. After the work 69 is fixed to the chuck 68, the adjusting screw 67 of the lock 65 is loosened to rotate the rotating plate 7 to correct it to a predetermined angle, and then the adjusting screw 67 is tightened to fix the rotating plate 7.

FIG. 15 shows a state in which the chuck 68 is mounted on the rotary plate 7 and the tilt table 6 is tilted to a predetermined angle by the block gauge 17. In this state, the workpiece is subjected to electrical discharge machining or grinding.

Although the fixing table is used for the measuring device in the first embodiment, the table of the first embodiment may be used for the machine tool. In that case, it is preferable to attach the lock 65 of the second embodiment to the tilt table adjacent to the rotating plate.

In the second embodiment, the present invention is used for fixing a workpiece as a machining tool of a machine tool. However, it may be used for a measuring device as in the first embodiment. Needless to say.

[0052]

As described above, the fixing table according to the present invention can be rotated by the above-mentioned structure while the object to be measured is fixed, and can be inclined at a predetermined accurate angle to perform three-dimensional measurement. Make it possible. Further, when the work is applied as a fixing table for fixing the work to the machine tool, the work can be easily fixed with an extremely simple structure.

[Brief description of the drawings]

FIG. 1 is a plan view of a fixing table according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a plan view in which a part of a fixing table according to the first embodiment of the present invention is omitted.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a cross-sectional view of the fixing table according to the first embodiment of the present invention in use.

FIG. 6 is a cross-sectional view of the use state of the fixing table according to the first embodiment of the present invention.

FIG. 7 is a plan view in which a fixing base is attached to a fixing table.

FIG. 8 is a front view in which a fixing base is attached to a fixing table.

FIG. 9 is a plan view in which another fixing base is attached to a fixing table.

FIG. 10 is a front view in which another fixing base is attached to a fixing table.

FIG. 11 is a plan view of a fixing table according to a second embodiment of the present invention.

FIG. 12 is a sectional view taken along line CC of FIG. 11;

FIG. 13 is a bottom view of the fixing table according to the second embodiment of the present invention.

FIG. 14 shows an operation state of a fixing table according to the second embodiment of the present invention.

FIG. 15 is a diagram illustrating the use state of the fixing table according to the second embodiment of this invention.

[Description of Signs] 1 Fixing table 2 Base 3 Connecting spring 4 Locking lot 5 Locking lot 6 Inclined table 7 Rotating plate 17 Block gauge 18 Seating part 19 Support point part 20 Support point part 40 Fixation table 43 Table 45 Stopper rod 50 Fixed table 51 Table 55 Stopper rod 65 Lock R1 R2 R2 R3 R

Claims (3)

[Claims] 1. A base attached to a measuring device, a machine tool, or the like, a tilt table having one end serving as a fulcrum and the other end standing up to form a sine bar with the base, and an axis rotatably mounted on the tilt table. The inclined table has a fulcrum portion on one end side, which serves as a fulcrum, and a seating portion mounted on a block gauge on the other end side, and one end side of a base. A locking lot that engages with the fulcrum portion is erected, and a connecting spring is bridged between the base and the inclined table so that the inside of the fulcrum portion always presses against the locking rod. Fixed table. 2. The fixing table according to claim 1, wherein a radius for a sign bar is provided outside the fulcrum portion, and a radius for abutting on the locking rod is provided inside the fulcrum portion. 3. The fixing table according to claim 1, wherein a lock for fixing the rotating plate adjacent to the rotating plate is attached to the inclined table.