JPH068023A - Stock vice device of drilling machine - Google Patents

Abstract

PURPOSE:To provide a stock vice device of a drilling machine eliminating enumeration error of thickness of a web by preventing curved deformation of the web at the time of clamping a shape steel and relief of the bottom surface of a flange. CONSTITUTION:In a stock vice device of a drilling machine having a fixed vice 7 and a movable vice 13 to clamp a flange (f) of a shape steel W on a transfer part 15 from right and left and a web height position detection device 65 to measure thickness of a web (u) of the shape steel W, in the direction orthogonal with the web (u), a flange pressing mechanism to press the flange (f) to the side of the transfer part 15 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vise device for a punching machine used for drilling a shaped steel such as an H-shaped steel, a grooved steel, and an angle steel.

[0002]

2. Description of the Related Art Conventionally, it has been known that a punching machine is used to punch a shaped steel such as an H-shaped steel, a grooved steel, and an angled steel from both the left and right sides and the upper side. When drilling a shaped steel with this punching machine, the flange of the shaped steel is supported by, for example, a roller that is a transfer portion, and one side of the flange of the shaped steel is abutted against a fixed vise of the vise device, The movable vise of is abutted against the other side of the flange to clamp.

Then, in order to determine the standard of the drill control operation of the boring machine, the height position of the lower surface of the web of the shaped steel supported as described above is measured by the web height position detecting device, and the height of the web is measured. The thickness is calculated.

[0004]

However, when the shaped steel is clamped, the lower surface of the web is bent and deformed, for example, due to the clamping force of the movable vise and the fixed vise, and the web is bent. Due to the deformation, the lower surface of the flange may rise from the roller that is the transfer unit.

As a result, the height position of the lower surface of the shaped steel web is also erroneously detected, and a calculation error occurs in the web thickness.
In addition, the above-mentioned uplift of the lower surface of the flange is added, which causes a malfunction in the drill control operation of the drilling machine.

The object of the present invention was proposed in view of the above problems of the vise device of the conventional punching machine, and prevents curving deformation of the web when the shaped steel is clamped and lifting of the lower surface of the flange to prevent the web. To provide a vise device for a punching machine, which is devised so as to eliminate the occurrence of an error in the calculation of the thickness.

[0007]

In order to solve the above-mentioned problems, the present invention measures a thickness of a fixed vise and a movable vise for clamping a flange of a shaped steel on a transfer part from the left and right, and a web of the shaped steel. In a vise device for a punching machine having a web height position detecting device for carrying out, a flange pressing mechanism for pressing the flange toward the transfer portion is provided in a direction orthogonal to the web.

[0008]

When the flange pressing mechanism presses the flange in the direction perpendicular to the web and the clamp by the movable vise is released a little, the curved deformation of the web and the lifting of the lower surface of the flange are eliminated.

In this state, the thickness of the web is accurately measured by the web height position detecting device.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The punching machine 1 illustrated in the front view in FIG.
This is to perform a perforating process on a shaped steel (workpiece W) such as a channel steel and a chevron steel from both the left and right sides and the upper three sides. Perforator 1
Gate-shaped columns 5 are erected on both left and right sides of the box-shaped base 3. A fixed vise 7 is fixed on the right side of the base 3.

A guide rail 9 is extended from below the fixed vise 7 to the left of the column 5, a slide base 11 is guided by the guide rail 9, a movable vise 13 is provided on the slide base 11, and the slide base 11 is A slide base driving device (not shown) can be moved toward and away from the fixed vise 7. The fixed vise 7 and the movable vise 13 have a planar fixed vise portion 7a and a movable vise portion 13a that are in contact with the outer surfaces of the flanges f of the shaped steel W.
Are provided respectively.

Supporting the flanges f of the shaped steel W, the shaped steel W is supported.
The rollers 15 and 15 which are the transfer parts for transferring the above are rotatably supported by the fixed vise part 7a of the fixed vise 7 and the movable vise part 13a of the movable vise 13.

The fixed vise portion 7a is provided integrally with the fixed vise 7, but the movable vise portion 13a is fixed to the movable vise 1.
The movable vice 13 is formed so as to be able to move a little with respect to the movable vice 13 in parallel with the above-mentioned moving direction of 3.

That is, for example, a cylinder (not shown),
Alternatively, the movable vise portion 13a may be attached to the actuator of the linear movement mechanism using a screw as shown in FIG.
Are connected via.

With the above construction, when the movable vise 13 is moved toward the fixed vise 7 by the slide base drive device with respect to the shaped steel W having the flange f supported by the roller 15, the fixed vise portion 7a is fixed to the flange f. On the right side,
The movable vice portion 13a comes into contact with the left side surface of the flange f, and the shaped steel W is clamped.

In this embodiment, as shown in FIG. 1 by enlarging the main portion of FIG. 2, the downward direction is the direction orthogonal to the web u of the shaped steel W supported by the roller 15. Flange pressing mechanism 19 for moving and pressing the flange f
Are provided in the fixed vise portion 7a and the movable vise portion 13a, respectively.

The illustrated flange pressing mechanism 19 includes a flange retainer 21 that can abut against the upper end of the flange f, a guide seat 25 that guides a guide rod 23 formed integrally with the flange retainer 21 in the moving direction, and a flange retainer. 21 and a holding cylinder 29 having a piston rod 27 attached thereto. The guide seat 25 and the holding cylinder 2
9 is fixed to the fixed vise portion 7a on the fixed vise portion 7 side and to the movable vise portion 13a on the movable vise 13 side (in the illustrated example, a shaft support plate 31 that pivotally supports the roller 15 and a guide). The seat 25 is fixed to the fixed vise portion 7a and the movable vise portion 13a via the stay 33).

The flange retainer 21 is provided with a pawl 35 which can come into contact with the upper end of the flange f, and has a small friction when the pawl 35 moves with respect to the flange f while being in contact with the upper end of the flange f. As described above, the claw 35 is formed by, for example, a stroke bearing.

With the above structure, in the state of FIG. 5 in which the piston rod 27 of the pressing cylinder 29 is projected and the claw 35 is pressed against the flange f of the work W by pressing.
When the piston rod 27 is retracted, the guide rod 23 guided by the guide seat 25 and the flange retainer 21
Moves upward and the pawl 35 separates from the flange f as shown in FIG. The claw 35 is separated from the flange f (FIG. 4).
When the piston rod 27 is projected in this state, the pawl 35 comes into contact with and holds the flange f of the work W as shown in FIG.

As shown in FIG. 2, a vertical drill head 43 guided by a guide rail 41 is provided on the upper column 5a of the gate-shaped column 5 so as to be horizontally movable by a moving motor 45. The vertical spindle and the vertical drills 47, 47 equipped on the drill head 43 are driven by a drive motor 49.
And is moved up and down by a cylinder (not shown).

On the slide base 11, there are a left horizontal drill head 53 equipped with a left horizontal spindle 50 and a horizontal drill 51, and a right horizontal drill head 57 equipped with a right horizontal spindle 52 and a horizontal drill 55. Guide rails 59, 61
And a vertical movement motor (not shown) and vertical movement motors 62, 64 are configured to be movable in the front-back direction and the up-down direction of the paper surface of FIG. 2 is configured to be movable in the left-right direction.

The left horizontal spindle 50 is rotated by a motor 54 and fed by a cylinder 56, and the right horizontal spindle 52 is rotated by a motor 58 and fed by a cylinder 60.

A web height position detecting device 65 for measuring the thickness t of the web u of the work W is attached to the fixed vise portion 7a.
And the movable vice part 13a. As shown in FIGS. 1, 4, and 6, the illustrated web height position detecting device 65 bites a rack 71 having a probe 69 formed on a pinion (not shown) axially supported in the device body 67. Together,
The pinion is rotated by a motor (not shown) to project the rack 71, the amount of projection of the probe 69 from the apparatus body 67 is detected by the encoder 73, and the arithmetic processing unit 76 calculates the thickness t of the web u.

That is, the encoder 73 detects the position when the probe 69 contacts the lower surface of the web u,
The flange height H, flange width D, etc. are measured by another measuring device 75.
The thickness u of the web u is calculated from the flange height H, the flange width D, and the like obtained from the detection value obtained by (1) or standard data stored in advance in the storage unit 77. The detected value, the stored value, the intellectual calculation result, etc. are displayed on the display device 79.

Next, the operation of this embodiment having the above structure will be described. The work W supported by the rollers 15 and 15 for determining the standard of the drill control operation prior to the drilling work.
The height position of the lower surface of the web u is measured. Work W
Is on a transfer roller (not shown), and as shown in the front view of FIG.
Is close to the flange f on the left side of the work W, but is in a position where it is not clamped. The piston rod 27 of the holding cylinder 29 is retracted, and the flange holder 2
1 is moving upward, and the claw 35 is separated from the flange f.

Therefore, a cylinder (not shown), or
The rod 17 is operated by operating the actuator of the linear movement mechanism using a screw.
3 to the right in FIG. 3 to move the movable vise portion 13a to the right, and the left and right flanges f of the work W are clamped by the movable vise portion 13a and the fixed vise portion 7a as shown in FIG.

Next, the piston rod 27 of the pressing cylinder 29 on the movable vise portion 13a side and the fixed vise portion 7a side is projected to move the flange pressing members 21, 21 downward.
As shown in FIG. 5, the flanges f of the work W are fixed to the claws 35, 35.
Hold down with.

Then, a cylinder not shown, or
When the rod 17 is slightly moved to the left in FIG. 5 by slightly actuating the actuator of the linear movement mechanism using screws, the movable vise portion 13 is moved.
a is also moved slightly to the left, and the movable vise portion 13a is separated from the left flange f of the work W as shown in FIG.
It will not be clamped.

At the time of the clamping operation of FIG. 5, the lower surface of the web u is curved and deformed, for example, upward due to the clamping force, and further, the lower surface of the flange f is lifted from the roller 15 due to the curved deformation of the web u. Sometimes,
As shown in FIG. 1, the clamps are released while the flanges f, f of the work W are being pressed by the flange pressers 21, 21, so that the curved deformation of the web u and the lifting of the lower surface of the flange f from the roller 15 are performed. Will be eliminated.

Therefore, as shown in FIG. 6, the pinion in the apparatus main body 67 is rotated by a motor (not shown) to project the rack 71, and the encoder 73 determines the position when the probe 69 abuts on the lower surface of the web u. The thickness u of the web u is calculated from the value detected by another measuring device 75 or the flange height H and flange width D obtained from the standard data stored in advance in the storage unit 77. Based on the calculated thickness t of the web u,
The vertical reference position of the web u is determined and used as the reference for the drill control operation of the punch 1. The curving deformation of the web u and the lifting of the lower surface of the flange f from the roller 15 are eliminated, and the drill control operation is accurately performed.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate changes. For example, in the above embodiment, the holding cylinder 29 on the side of the movable vise 13 is attached to the movable vise portion 13a, but this holding cylinder 29 is attached to the column 5 or the slide base 11 instead of the movable vise portion 13a. May be. Further, when a cylinder or a linear movement mechanism using a screw is used to move the movable vise portion 13a with respect to the fixed vise portion 7a, (1) use the cylinder In this case, a pressure reducing circuit is provided in the cylinder, and this pressure reducing circuit is used. (2) With a linear movement mechanism using a screw, this is done by controlling the tightening torque of the screw. (3) The position of the piston rod of the cylinder or the operating position of the screw of the linear movement mechanism by the screw is detected and controlled by the encoder. Etc. can be implemented by various methods.

[0032]

As described above, according to the present invention, when the flange pressing mechanism presses the flange in the direction orthogonal to the web and the clamp by the movable vise is slightly released, the web is bent and deformed, and the lower surface of the flange is lowered. Is no longer raised.

In this state, the thickness of the web is accurately measured by the web height position detecting device, so that the drill control operation in the punching machine can be accurately performed.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an embodiment of a vise device for a punching machine according to the present invention.

2 is a front view of the punch of FIG. 1. FIG.

FIG. 3 is a front view showing a step in a clamping operation by the vise device of FIG.

4 is a front view showing the next step of FIG. 3 of the vise device. FIG.

5 is a front view showing the next step of FIG. 4 of the vise device. FIG.

6 is an explanatory diagram of web thickness measurement in FIG. 1. FIG.

[Explanation of symbols]

 7 Fixed Vise 13 Movable Vise 15 Roller (Transfer Section) 19 Flange Holding Mechanism 65 Web Height Position Detection Device f Flange u Web

Claims (1)

[Claims] 1. A perforation having a fixed vise for clamping a flange of a shaped steel on a transfer section from the left and right, a movable vise, and a web height position detecting device for measuring the thickness of the shaped steel web. A vise device for a punching machine, comprising a flange pressing mechanism for pressing the flange toward the transfer section in a direction orthogonal to the web.