JP3408794B2 - Fixing table - Google Patents

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 a measuring object to a measuring device or a machine tool as a machining tool.

[0002]

2. Description of the Related Art Various measuring devices are usually equipped with a fixing tool corresponding to the measuring device. For example, in a grinding machine, when measuring the surface or contour of a machined work piece with a laser beam or the like and processing another work piece with the same size as the first work piece with a grinding tool, a measuring device A fixing table is required to fix the first workpiece. In addition, for measuring physical properties of an article or measuring a material of the article, a tool for fixing the measurement object to the measuring device is required.

A rotary table is conventionally used to fix a workpiece to a machine tool for electric discharge machining. 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 give a rotation torque to the rotation table. .

[0004]

However, since the fixing tool conventionally provided in the measuring device is focused on fixing, the angle can be accurately set or rotated in the measurement. Things like that were not taken into account. In the table of the measuring device used for grinding of the above-mentioned grinding device, if it is fixed at a certain angle, it must be fixed again in order to change the state, let alone three-dimensional with an accurate inclination angle. I couldn't measure it.

Further, the conventional rotary table has a complicated structure because it is provided with a reduction gear mechanism and a worm reduction mechanism, and the volume thereof is large, which is not suitable for easily machining a workpiece. .

The present invention has been made in order to solve the above-mentioned problems, and enables three-dimensional measurement by allowing a measurement object to rotate while being fixed and tilting it at a predetermined accurate angle. At the same time, it is an object of the present invention to provide a fixing table that can easily fix a workpiece to a machine tool as a machining tool and has a simple structure.

[0007]

In the fixing table of the present invention, a sine bar is constituted by a base mounted on a measuring device, a machine tool, etc. and the other end standing upright with one end as a fulcrum. The tilt table is composed of a tilt table and a rotary plate rotatably supported on the tilt table. The tilt table has fulcrums on both left and right sides at one end, which serve as fulcrums for standing up, and the other end has a block gauge top. to the have the seat for mounting, and erected locking rod de engaging said fulcrum portion on the left and right sides of the base end side, the inner side of the fulcrum portion is pressed against and constantly the locking rod A connecting spring is bridged between the base and the tilt table.

With the above structure, 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 object to be measured can be measured in a tilted state. Further, by rotating the rotary plate, the measurement object can be rotated in an inclined state, and the measurement object can be measured three-dimensionally.

Further, when the fixing table of the present invention is used as a machining tool for a machine tool for fixing a workpiece, the workpiece can be fixed easily and the fixing angle can be increased while the construction is extremely simple. Can be changed easily

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 the line AA of FIG. 1, and FIG. Figures and 4 show B- in Figure 1.
It is a B line sectional view.

This fixing table 1 is measured by a measuring device.
A measuring fixed table for fixing an object, which is a metal
Made of steel (for example, iron) and has a predetermined thickness
On top of the shaped base 2, the connecting spring 3 and the locking lock areDo
The tilt table 6 can be tilted at a desired angle depending on 4 and 5.
On the upper surface of the tilt table 6
7 is rotatably supported.

The base 2 is a thick rectangular plate, and the tilt table is provided on both sides of one end of the base 2 (the left side in FIG. 1 is the one side and the right side is the other side). Cylindrical locking rods 4 and 5 for locking 6 are erected. The locking rods 4 and 5 are fixed by fitting the lower parts into circular holes formed on both sides of the base 2 on one end side, and the upper parts projecting upward from the surface of the base.

A notch 8 on the side of the base 2 is formed in the center of the base 2 in the longitudinal direction for passing the connecting spring 3. The notch 8 on the side of the base 2 is a notch of an elongated hole having semicircular shapes at both ends in a plan view, as shown by a dashed line 9 in the central longitudinal direction of FIG. 3, and as shown in FIG. The base 2 is formed so as to penetrate from the front surface side to the bottom surface side.

The tilt table 6 is also formed with a notch 10 on the tilt table side. As shown by the solid line 11 in the central longitudinal direction of FIG.
It has the same shape as the notch 8 on the base 2 side, and overlaps with the notch 8 on the base side by about half in plan view, and the connecting spring 3 straddles the base 2 and the tilt 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 bored in the width direction of the base 2, and is open to the bottom side of the base 2.

At one end of the cutout portion 10 of the tilting table 6, a locking recess 15 for fitting a pin 14 for locking one end of the connecting spring 3 to the tilting table 6 is also formed. The locking recess 15 is open on the upper surface side of the tilt 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 the plan view of FIG. As shown in FIGS. 2 and 4, the locking concave portion 15 of the tilt table 6 is located at a higher position in the vertical direction.

The connecting spring 3 is provided on the base 2 as described above.
Is arranged in the notches 8 and 10 of the tilt table 6 and both ends thereof are locked by locking pins 12 and 14. The tilt table 6 is biased obliquely downward by the connecting spring 3 and abuts on the base 2, but the two locking rods 4 and 5 prevent the tilt table 6 from sliding in the bias direction. Is stopped by. 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 is 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 the length is slightly short. As shown in FIG. 5, the tilt gauge 6 and the base 2 function as a sine bar by the block gauge 17, 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 mounted.
8 is formed so as to project downward, and fulcrum portions 19 are provided on both sides of one end side.
20 is formed to project. The point P1 where the seat 18 and the block gauge 17 contact each other, the fulcrums 19 and 20, and the base 2
Rs R1 and R2 for sign bars are attached to the inside of the seat 18 and the outside of the fulcrums 19 and 20 so that the distance L between the contact point P2 and the point P2 is always constant.

The seating portion 1 is provided inside the fulcrums 19 and 20.
8 and the fulcrums 19, 20 are provided with a radius R3 smaller than the radiuses R1, R2, so that the tilt table 6 does not tilt in the lateral direction in the side view of FIG. 2 and tilts in the plan view of FIG. The other end of the table 6 does not tilt vertically. Thus, the parallelism is always maintained even if the tilt table 6 is tilted at a predetermined angle.

The locking rods 4 and 5 are fitted in the recesses 21 and 22 formed on both sides of the one end side of the tilt table 6 with a certain degree of freedom, and are biased by the connecting spring 3 to the inside of the fulcrums 19 and 20. Are configured to be pressed against each other. Even if the other end of the tilting table 6 tilts upward due to the pressure contact force and the biasing force of the connecting spring 3 in the diagonally downward direction, the base 2 and the tilting table 6 do not come apart without any hinge connection. You can fulfill the role of a bar.

The bearing 2 is provided near the other end of the tilt table 6.
3, the rotary plate 7 is rotatably attached to the bearing 23. That is, as shown in FIG. 4, a shaft hole is formed so as to penetrate toward the other end of the tilting table 6, and a shaft 25 having a flange 24 in this shaft hole is used as the dry bearing 2.
It is rotatably fitted in via 6.

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

The rotary plate 7 is constructed 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 rotary plate 7 at equal intervals, and the loading holes 32 of the tilt table 6 are provided.
The ball 33 fitted in is urged toward the rotary plate 7 side by the spring 34, and the upper portion of the ball 33 is locked in the locking hole 31 to rotate intermittently. Three
Reference numeral 5 is 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 in which the rotary plate 7 is horizontal. When the tilt table 6 and the rotary plate 7 are tilted at 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 tilt angle of the tilt table 6 with respect to the base 2 is represented by the expression sin α = H / L. As shown in FIG. 5, L is a horizontal distance between a point P1 of the seat 18 and a point P2 of the fulcrums 19 and 20, and the distance L is always constant even if the tilt table 6 tilts. Further, R1 and R2 are attached to the inside of the seat 18 and the outside of the fulcrums 19 and 20, respectively. H is the height of the block gauge.

In FIG. 5, the tilting table 6 is arranged with respect to the base 2.
The figure shows the case of tilting by 5 °. Even when tilted in this way, the connecting spring 3 biases the tilting table 6 to the lower right, and the radius R3 inside the fulcrums 19 and 20 is locked to the locking rods 4 and 5. Since the fulcrum portion 19, 20 and Kakaritomero <br/> head 4 and 5 are provided at two locations on the left and right sides, the parallelism of the tilting table 6 is maintained. Moreover, the fulcrum part 1
Since the R 3 is attached to the inside of 9, 20 as well,
The parallelism of the tilt table 6 is maintained, and the distance L between the points P1 and P2 is always constant.

In FIG. 6, the tilt table 6 and the rotary plate 7 are 45.
° Shows the case of tilting. Even if the rotary plate 7 is tilted by 45 °, it can sufficiently function as a sine bar. 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 if the tilt table 6 is tilted at 45 °.

Next, the usage state of the fixing table will be described. In the fixing table 1, as shown in FIGS. 7 and 8, it is necessary to attach the fixing table 40 to the rotary plate 7. In this embodiment, the rectangular side plates 41 are placed on both ends of the rotary plate 7 and the screws 4 are inserted from below the rotary plate 7.
Fix by 2. A ring-shaped table 43 is placed on the side plate 41 and fixed at two positions 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 from the outside of the table 43 to the inside, and the rear end thereof is fixed by a decorative screw 46. The tip of the stopper rod 45 may be a thin protrusion, or the protrusion 47 may be retracted by the spring 48.

When the fixing table 40 having the above-mentioned structure is used, an object to be measured (not shown) is sandwiched between the four stopper rods 45 to fix the object. Depending on the size of the object to be measured, if the decorative screw 46 is loosened, 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 mounted on the base 2 as described above.
And the tilt table 6 may be interposed.

9 and 10 show examples in which the fixed base 50 is modified. In the fixing base 40 of the above-mentioned embodiment, the ring-shaped table 43 is fixed on the side plate 41, but in the case of the present embodiment, the rectangular table 51 is fixed on the side plate 52. The table 51 of the fixing table 50 is formed by fixing the ends of four bars 53 with screws 54 to form a quadrangle.

Four stopper rods 55 are inserted through insertion holes horizontally formed from the outside to the inside of the two bars 54 facing each other, and the rear ends thereof are fixed by decorative screws 56. The tip of the stopper rod 55 is also a thin protrusion, and the protrusion 57 has a spring 5
Some will leave depending on 8.

In the above embodiment, the fixed bases 40 and 50 as shown in FIGS. 7 to 10 are attached to the rotary plate 7, but the fixed base is not necessarily required in the present invention, and a known vise is used. It may be attached to the rotary 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. 12 is CC of FIG.
A line sectional view, FIG. 13 is a bottom view, FIG. 14 is an explanatory view 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 on a machine tool. Since the second embodiment and the first embodiment have the same basic configuration, the same reference numerals are used for the same members as in the first embodiment in the following description. And detailed description thereof will be omitted.

As shown in FIG. 13, the base 2 is a thick T-shaped metal plate, the head 2A is wider than the rod-shaped portion 2B, and the total length of the base 2 is longer than that of the tilt table 6. The other end of the tilt table 6 projects from the other end of the tilt table 6. Rod-shaped part 2B
The screw hole 16 formed at the other end of the can be fitted with a screw without being obstructed by the tilt table 6 in a plan view.

Cylindrical locking rods 4 and 5 for locking the tilt table 6 are erected on both sides of the head 2A of the base 2 near the center of one end, and project upward from the surface of the base 2. There is. 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 longitudinal center of the base 2. As shown in FIG. 13, the notch 8 on the base 2 side is a semicircular long hole at both ends, and is formed so as to penetrate from the front surface side to the bottom surface side of the base 2 as shown in FIG. And a step portion 6 for screwing the hook screw 60 to the other end portion.
1 is formed.

The tilting table 6 is a rectangular thick metal plate having a rectangular groove portion 62 with one end open at the center longitudinal direction of the one end, and the notch on the base side in plan view. The portion 8 and the main portion are overlapped with each other, and the connecting spring 3 is constructed so as to be installed obliquely across the base 2 and the tilt table 6. A hook screw 63 for locking the connecting spring 3 is screwed into one end of the groove portion 62 of the tilt table 6, and the connecting spring 3 is stretched between the hook screw 63 and the hook screw 60.

The fulcrum portions 19 and 20 are formed on both sides of one end of the tilt table 6 in the longitudinal direction, and the seating portion 18 mounted on the upper surface of the block gauge 17 is formed on the lower surface of the central portion of the other end. Has been done.

The radiuses R1 and R2 for the sign bar are provided inside the seat 18 and outside the fulcrums 19 and 20, and inside the fulcrums 19 and 20, the seat 18 and the fulcrum 19 are provided.
R20 smaller than R1 and R2 attached to 20 is attached. Since the functions of these ares are the same as those in the first embodiment, detailed description thereof will be omitted.

The tilting table 6 is formed with considerably large recesses 21 and 22 on both sides of the one end, and the locking rods 4 and 5 are formed.
Is fitted inside one end of the recesses 21, 22 and the inner wall surfaces of the recesses 21, 22 on one end side are pressed against the locking rods 4, 5 by the urging force of the connecting spring 3. Even if the other end of the tilting table 6 tilts upward due to the pressure contact force and the biasing force of the connecting spring 3 in the diagonally downward direction, the base 2 and the tilting table 6 do not come apart without any hinge connection. You can fulfill the role of a bar. Since the screw holes 16 can be seen from the recesses 21 and 22 in a plan view, the screws can be fitted into the tilt table 6 without being disturbed.

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. 12, there is a step near the other end of the tilt table 6. A shaft hole 25 having a flange 24 is formed in the dry bearing 26.
The rotary plate 7 is rotatably fitted in the bearing 23 and is rotatably attached to the bearing 23. The positioning pin 28 and the fixing screw 30 also have 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 screw holes 64 for fixing the chuck 68 and the like near the outer peripheral edge.
Are formed at regular intervals. However, this rotating plate 7
This is basically the same as the first embodiment, and the rotary 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 rotary plate 7. This lock 65
Is provided for fixing the rotary plate 7 so that the rotary plate 7 does not rotate and rattling when a workpiece is processed by a machine tool. In this lock 65, a leg piece 66 projecting downward is formed on one end side of the rectangle so that the whole is separated from the surface of the rotary plate 7, and the other end having a step overlaps with the outer peripheral edge portion of the rotary plate 7. There is. This lock 65
Has a through hole formed in the center thereof, and the adjusting screw 67 is inserted into the through hole and screwed into the rotary plate 7, whereby the tightening force of the rotary plate 7 can be adjusted.

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

Further, the connecting spring 3 has the tilt table 6
Urging the tilt table 6 toward the lower right
Points that are locked to the inside of the seat 18 and the fulcrums 19, 2
The roles of the radiuses R1, R2, and R3 attached to the outside of 0 are also as described in the first embodiment, and therefore the details are omitted.

When using the fixing table of this embodiment, a screw is fitted into the screw hole 16 to firmly screw the fixing table 1 to the machine tool, and the chuck 68 is screwed to the rotary plate 7. Fixed by. After fixing the workpiece 69 to the chuck 68, loosening the adjusting screw 67 of the lock 65 to rotate the rotary plate 7 to correct it to a predetermined angle, and then tightening the adjusting screw 67 to fix the rotary 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 at a predetermined angle by the block gauge 17. In this state, the workpiece is subjected to electric 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 rotary plate.

Further, in the above second embodiment, it is used as a machining tool for a machine tool for fixing a workpiece, but it may be used for a measuring device as in the first embodiment. Needless to say.

[0052]

As described above, according to the fixing table of the present invention, the object to be measured can be rotated while being fixed, and the table can be tilted at a predetermined accurate angle for three-dimensional measurement. It is possible. Further, if it is applied as a fixing table for fixing the work piece to the machine tool, the work piece can be fixed easily with an extremely simple structure.

[Brief description of drawings]

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

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

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

FIG. 4 is a sectional view taken along line BB in FIG.

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 a 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 the fixing table.

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

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

12 is a cross-sectional view taken along the line CC of FIG.

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

FIG. 14 is an operating state of the fixing table according to the second embodiment of this invention.

FIG. 15 is a usage state diagram of the fixing table according to the second embodiment of the present invention.

[Explanation of symbols]

1 fixing table 2 base plate 3 connecting spring 4 locking rod de 5 locking rod de 6 tilting table 7 rotating plate 17 gauge blocks 18 seat portion 19 fulcrum portion 20 fulcrum portion 40 fixing stand 43 Table 45 stopper rod 50 fixed table 51 Table 55 Stopper rod 65 Lock R1 are R R are R3 are

Claims (3)

(57) [Claims] 1. A pedestal to be attached to a measuring device, a machine tool, etc., a tilting table that forms a sine bar with the other end standing upright with one end as a fulcrum, and a rotatably rotatable shaft on this tilting table. The tilt table has a fulcrum part which is a fulcrum for standing upright on both left and right sides on one end side , and a seating part mounted on the block gauge on the other end side. Kakaritomero <br/> head that engages the fulcrum portion on the left and right sides of one end upright of the base connecting the spring to the inside of the fulcrum portion is pressed against and constantly the locking rod A fixed table characterized by being bridged between inclined tables. 2. The fixing table according to claim 1, wherein a radius for the sign bar is provided on the outside of the fulcrum part, and a radius for contacting the locking rod is provided on the inside of the fulcrum part. 3. The fixing table according to claim 1, wherein a lock for fixing the rotary plate adjacent to the rotary plate is attached to the tilt table.