JP2002001451A - Punching die and tool for adjusting height - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a punching die and tool for adjusting height capable of facilitating adjustment of punch height. SOLUTION: By rotating a jig block 41 by inserting a height adjusting tool 71 through a hole 67 for tool insertion of a punch head 63, a punch driver 35 capable of rotating and descending together with the jig block 41 is rotated relative to the punch head 63 and a guide member 47 integrally arranged in the punch head 63. Further, based on action of screw portions 49 and 51 meshing each other arranged on an inner surface of the guide member 47 and an outer periphery of the punch driver 35, the punch driver 35 and a punch body 31 integrally fixed with the punch driver 35 are forced to descend relative to the punch head 63 to perform adjustment of punch height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch die for punching a work and a height adjusting tool for adjusting the height of the punch die.

[0002]

2. Description of the Related Art As shown in FIG. 8, a conventional punch die 101 is provided in a cylindrical punch guide 103 which is vertically movably supported by an upper die holder (not shown) in a punch press. A punch body 105 having a punch blade portion 105B at a lower end is provided to be vertically movable. A punch head 1 is provided at the upper end of a punch driver 107 which is vertically movable through the punch guide 103 in an upward direction.
09, an elastic member 111 such as a strong stripper spring is mounted between the punch head 109 and the punch guide 103, and the punch body 105 and the punch driver 107 are integrally connected by a connecting bolt 113. Have been.

The directionality between the punch body 105 and the punch driver 107 is held by a key 115 attached to the punch driver 107 by bolts. A stripper plate 117 is detachably attached to the lower end of the punch guide 103.

[0004]

In the conventional structure as described above, when the punch blade portion 105B is worn by use of the punch die 101, the connecting bolt 113 is loosened to remove the punch body 105, and the punch blade 105 is removed. Part 1
05B is polished again. Then, the amount of shortening of the punch body 105 due to the re-polishing is determined by the punch body 10.
5 is corrected by interposing a shim between the punch driver 107 and the punch driver 107.

That is, conventionally, height adjustment is performed by using a specific jig, vise, or the like to loosen the connecting bolt 13 and remove the punch body 105, and then interposing a shim as described above. Therefore, there is a problem that attaching and detaching of the punch body 105 and subsequent height adjustment are troublesome.

SUMMARY OF THE INVENTION An object of the present invention has been made in view of the above-mentioned problems of the prior art, and provides a punch die and a height adjusting tool which can easily adjust the punch height. Is to do.

[0007]

According to a first aspect of the present invention, there is provided a punch die mounted on a punch guide and supported in a vertically movable manner, and integrally with the punch body. A punch driver, which is provided with a punch driver, and a punch head that transmits a pressing force to the punch driver by pressing with a striker, wherein a punch head is provided between the punch head and the punch driver. A cylindrical guide member for transmitting the applied striking force to the punch driver is provided integrally with the punch head, and an inner surface of the guide member and an outer peripheral surface of the punch driver are formed with screw portions which are screwed together, A jig block for rotating the punch driver relative to the punch head and the guide member; The fact formed by providing a tool insertion hole in the punch head to rotate the lock, is characterized in.

Accordingly, a punch driver which can be rotated together with the jig block and lowered by inserting the height adjusting tool through the tool insertion hole of the punch head and rotating the jig block is provided. Is rotated relative to the guide member provided integrally with the inner surface of the guide member and the screw portion provided on the outer peripheral surface of the punch driver.
The punch height is adjusted by lowering the punch driver and the punch body integrated with the punch driver relative to the punch head.

According to a second aspect of the present invention, in the punching die according to the first aspect, the jig block includes:
A non-circular shape which has an overall cylindrical shape and has a flange portion at an upper end portion, and this flange portion is only allowed to rotate between the punch head and the guide member, and a height adjusting tool for rotating the jig block is fitted. Having a hole and having a non-circular portion at the lower end portion that fits into a non-circular concave portion provided on the upper end surface of the punch driver,
It is characterized by the following.

Therefore, the jig block has a cylindrical shape as a whole, and is provided with a flange provided at an upper end portion between the punch head and the guide member so as to be rotatable but not movable up and down. For this reason, when the jig block is rotated by fitting the height adjustment tool into the non-circular hole of the jig block and rotating the height adjustment tool, the cross section provided at the lower end portion of the jig block is removed. Since the non-circular non-circular portion is fitted into the non-circular recess provided in the punch driver, the punch driver rotates.

According to a third aspect of the present invention, there is provided the punch die according to the first or second aspect, wherein the jig block is provided on a head of a bolt for fastening the punch body and the punch driver. And a non-circular hole having the same shape and size as the non-circular hole provided.

Therefore, the height adjusting tool is fitted into a non-circular hole provided in the head of the bolt fastening the punch body and the punch driver, and the bolt is turned by turning the height adjusting tool.

According to a fourth aspect of the present invention, there is provided a height adjusting tool, a handle for an operator to grip and operate, a shaft provided orthogonally to the handle, and a non-circular cross-section fitted to a tip of the shaft. Having a mating portion, the fitting portion being smaller than the tool insertion hole provided in the punch head, and having the same shape and size as the non-circular hole provided in the jig block, It is characterized by the following.

Therefore, the shaft of the height adjusting tool is inserted from the tool insertion hole of the punch head, and the fitting portion having a non-circular cross section provided at the tip of the shaft is fitted into the non-circular hole of the jig block. Then, rotate the handle of the height adjustment tool to rotate the jig block.

A height adjusting tool according to a fifth aspect of the present invention is the height adjusting tool according to the fourth aspect, wherein the shaft is provided at a tip of the shaft when the shaft is inserted from a tool insertion hole of the punch head. A pin is detachably provided at a predetermined position of the shaft so that the shaft is stopped by abutting against the upper surface of the punch head when the fitting portion fitted to the non-circular hole of the jig block is fitted. It is a feature.

Therefore, when the height adjusting tool is inserted through the tool insertion hole of the punch head, the pin attached to the shaft of the height adjusting tool comes into contact with the upper surface of the punch head. The part just fits into the non-circular hole of the jig block.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 6 and 7 show the entire turret punch press 1. FIG. The turret punch press 1 has a gap G between the upper frame 5 and the lower frame 7 at the center of the frame 3. The gap G has an upper turret 9 rotatably supported by the upper frame 5 and a lower turret 11 rotatably supported by the lower frame 7.

The upper turret 9 has a plurality of punch dies P mounted thereon, and the lower turret 11 has a plurality of die dies D mounted thereon. Upper turret 9 and lower turret 11
Are rotated in synchronism, and a punch die P and a die die D for performing desired processing at the processing position R are determined.

In addition, a punch die P is provided above the processing position.
A ram 15 provided with a striker 13 for hitting the ram 15 is provided so as to be able to move up and down.
A drive device such as a crank mechanism (not shown) for raising and lowering the motor is provided.

On the other hand, on the right side of the lower turret 11 in FIG. 7 in the gap G, there is provided a working table 17 for supporting a work W to be machined, and a fixed table 17F in the center and left and right of the fixed table 17F. Both sides (Fig. 7
A movable table 17M that is movable in the Y-axis direction is provided at both the upper and lower sides (middle and upper sides). A carriage base 19 that connects the left and right movable tables 17M across the fixed table 17F is provided to be reciprocally movable in the Y-axis direction. The carriage base 19 can be moved and positioned in the Y-axis direction by a Y-axis motor 21.

The carriage base 19 is provided with a plurality of work clampers 23 for holding the work W,
A carriage 27 is provided which can be moved and positioned in the X-axis direction (the vertical direction in FIG. 7) by the X-axis motor 25.

With the above configuration, the upper turret 9 and the lower turret 11 are rotated, and the punch die P and the die D for performing desired processing are indexed to the processing position R. Next, the workpiece W is gripped by the workpiece clamper 23, the carriage 27 and the carriage base 19 are moved, and the workpiece W is positioned at the processing position R. Then, the ram 15 is lowered by the driving device, the punch die P is pressed by the striker 13, and the work W is punched by cooperation with the die die D.

1 to 4 show a punch die P according to the present invention. Referring to FIG. 1, in the punch die P, a punch body 31 is provided inside a punch guide 29.
Are vertically movable. A punch driver 35 is integrally mounted on the upper side of the punch body 31 with a bolt 33.

The key 3 is located near the upper end of the punch body 31.
7 is attached by bolts 39, and is vertically movable without rotating with respect to the punch guide 29. A jig block 41 is provided above the punch driver 35.
Is provided.

Referring to FIGS. 2A to 2C, the jig block 41 has a generally cylindrical shape, has a disk-shaped flange portion 41F at an upper end portion, and has a central portion in the vertical direction. It has a circular cross section 41C. Further, below the circular cross-section portion 41C, for example, a square portion 41S is provided as an example of a non-circular portion. Flange 41F
Is provided with a hexagonal hole 43 as an example of a non-circular hole, and a circular hole 45 is provided below the hexagonal hole 43.

Referring again to FIG. 1, the punch driver 3
A guide member 47 having a cylindrical shape is provided on the outside so as to cover the jig block 41 and the jig block 41. A screw portion 49 provided on the outer peripheral surface of the punch driver 35 and an inner surface of the guide member 47 are provided. Screw portion 51 is screwed and fixed in the vertical direction.

Since the flange 47F provided at the lower end of the guide member 47 is held down by the retainer 55 attached to the upper end of the punch guide 29 by the screw 53, the guide member 47 falls down. Never. Further, since the key 57 provided on the retainer 55 is engaged with the key groove 59 provided on the guide member 47, the guide member 47 can move downward without rotating with respect to the punch guide 29. Has become.

Referring also to FIG. 3, a punch head 63 is bolted to the upper end surface of the guide member 47.
The guide member 47 and the punch head 63 are moved downward with respect to the punch guide 29 by the repulsive force of the strip spring 65 provided between the retainer 55 and the punch head 63. Yes, but always biased upwards. In the center of the punch head 63, a tool insertion hole 67 for inserting a tool described later is provided.

The above-described jig block 41 is located below the punch head 63, and the flange portion 41F of the jig block 41 is rotatably sandwiched between the punch head 63 and the guide member 47, and is located above the punch head 63. Movement to is blocked. Then, the non-circular portion 4 at the lower end of the jig block 41
1S is fitted into, for example, a square hole 69 as an example of a non-circular recess having the same shape as the non-circular portion 41S provided on the head of the punch driver 35.

FIGS. 5A and 5B show a height adjusting tool 71 for adjusting the punch height by rotating the jig block 41 described above. The height adjusting tool 71 has a T-shape as a whole, has a handle 73 at the upper end, and a shaft 75 is provided downward from the handle 73. A hexagonal portion 77 having a hexagonal cross section as an example of a fitting portion that fits into the hexagonal hole 43 provided on the upper end surface of the jig block 41 is provided at the tip end (the lower end in the middle of FIG. 5A) of the shaft 75. Is provided.

The size of the hexagonal portion 77 is smaller than the tool insertion hole 67 provided in the punch head 63, and the punch driver 35 and the punch body 3
1 is fitted into a hexagonal hole 79 (see FIG. 1), which is a non-circular hole provided in the head 33H of the bolt 33 connecting the bolts 33. That is, the hexagon hole 43 of the jig block 41
It has the same shape and size as the hole. A hole 81 is provided at an intermediate position of the shaft 75 so that a pin 83 can be inserted. The height position of this hole 81 is
The pin 83 is determined to be in contact with the upper surface of the punch head 63 when the 7 is fitted into the hexagon hole 43 of the jig block 41.

Next, the operation of adjusting the punch height will be described. First, the pin 83 is inserted into the hole 81 provided in the shaft 75 of the height adjusting tool 71 described above. Then, the hexagonal portion 77 is inserted into the hole 6 for tool insertion of the punch head 63.
Insert from 7. Since the hexagonal portion 77 is smaller than the diameter of the tool insertion hole 67, it can be easily inserted.

Then, the hexagonal portion 77 is fitted into the hexagonal hole 43 of the jig block 41. At this time, the size of the hexagonal portion 77 is a size that fits exactly into the hexagonal hole 43. Further, since the pin 83 is mounted at the position of the shaft 75 corresponding to the height position where almost the whole of the hexagonal portion 77 just fits into the hexagonal hole 43, the pin 83 comes into contact with the punch head 63, so Part 77 is hexagonal hole 4
3 is prevented from passing.

When the jig block 41 is rotated with respect to the punch head 63 by rotating the height adjusting tool 71, the punch driver 35 rotates integrally with the jig block 41. At this time, the guide member 47 is
3, the punch driver 35 is rotated with respect to the guide member 47, and the punch driver 35 and the punch body 31 are lowered relative to the punch head 63 by the action of the screw portions 49 and 51. . Thus, the punch height is adjusted.

As described above, when the jig block 41 is rotated with respect to the punch head 63, it is necessary to fix the punch head 63 so as not to rotate.
The relative rotation of the guide member 47 and the guide member 47 is prevented by the bolt 61, and the guide member 47 is prevented from rotating relative to the punch guide 29 by the key 57. May be fixed so as not to rotate.

From the above results, the punch height can be easily adjusted only by inserting the dedicated height adjusting tool 71 from the tool insertion hole 67 of the punch head 63 and rotating the jig block 41. . Also, the punch die P
The punch height can be easily adjusted even in the state where is set on the upper turret 9. Further, since the hexagon hole 79 of the bolt 33 and the hexagon hole 43 of the jig block 41 have the same size and shape, the height adjustment and the rotation of the bolt 33 can be performed using the same height adjustment tool 71.

It should be noted that the present invention is not limited to the above-described embodiment of the present invention, but by making appropriate changes,
It can be implemented in other aspects. That is, in the above-described embodiment, the hexagon hole 79 of the bolt 33 and the hexagon hole 43 of the jig block 41 have the same size and the same shape, but the hexagon hole 43 of the jig block 41 is replaced with the hexagon hole of the bolt 33. The height may be made larger than 79 so that different height adjusting tools 71 are used. Further, instead of the hexagonal holes 43 and 79, the tip of the height adjustment tool 71 may be formed in the same non-circular shape as another non-circular shape.

[0039]

As described above, in the punch die according to the first aspect of the present invention, the jig block is rotated by rotating the jig block by inserting the height adjusting tool through the tool insertion hole of the punch head. The punch driver, which can rotate and descend together with the punch head, is relatively rotated with respect to the punch head and a guide member provided integrally with the punch head, and is provided on the inner surface of the guide member and the outer peripheral surface of the punch driver. By the action of the screw part that is screwed together,
Since the punch driver and the punch body integrally attached to the punch driver can be lowered relatively to the punch head, the adjustment of the punch height can be easily performed.

In the punching die according to the second aspect of the present invention, the jig block has an overall cylindrical shape, and the flange provided at the upper end is rotatable between the punch head and the guide member, but is vertically movable. It is provided in a state where it cannot be moved. Therefore, when the jig block is rotated by fitting the height adjustment tool into the non-circular hole of the jig block and rotating the height adjustment tool, the non-circular shape provided at the lower end of the jig block is obtained. Since the non-circular portion of the cross section is fitted into the non-circular concave portion provided in the punch driver, the punch driver rotates integrally, and the screw portion provided between the punch driver and the guide member is rotated. Since the punch driver is lowered with respect to the punch head by the action, the adjustment of the punch height can be easily performed.

In the punch die according to the third aspect of the present invention, the height adjusting tool is turned by fitting the height adjusting tool into a non-circular hole provided in the head of a bolt fastening the punch body and the punch driver. This allows the bolt to be turned with the same tool.

In the height adjusting tool according to the fourth aspect of the present invention, the shaft of the height adjusting tool is inserted from the tool insertion hole of the punch head, and the fitting portion provided at the tip of the shaft is fixed to the jig block. The jig block is rotated by turning the handle of the height adjustment tool into the non-circular hole, so that the height adjustment can be easily performed with the punch die set.

In the height adjusting tool according to the fifth aspect of the present invention, when the height adjusting tool is inserted through the tool insertion hole of the punch head, the pin attached to the shaft of the height adjusting tool contacts the upper surface of the punch head. Because it touches,
The fitting portion of the height adjusting tool can be just fitted into the non-circular hole of the jig block.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a punch die according to the present invention.

FIGS. 2A to 2C are a plan view, a cross-sectional view, and a bottom view showing a jig block.

FIG. 3 is a plan view seen from a direction III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIGS. 5A and 5B are a side view and a bottom view showing a dedicated tool for height adjustment.

FIG. 6 is a front view showing a turret punch press.

FIG. 7 is a sectional view taken along the line VII-VII in FIG.

FIG. 8 is a cross-sectional view showing a conventional punch die.

[Explanation of symbols]

 13 striker 29 punch guide 31 punch body 33 bolt 35 punch driver 41 jig block 41S square part (non-circular part) 41F flange part 43 hexagonal hole (non-circular hole) 47 guide member 49 screw part 51 screw part 63 punch head 67 tool Insertion hole 69 Square hole (recess) 71 Height adjustment tool 73 Handle 75 Shaft 77 Hexagonal part (fitting part) 79 Hexagonal hole (non-circular hole) 83 Pin P Punch die

Claims (5)

[Claims] 1. A punch body mounted on a punch guide and supported in a vertically movable manner, a punch driver integrally mounted on the punch body, and a punch for transmitting a pressing force to the punch driver by pressing with a striker. A punch die having a head, wherein a cylindrical guide member for transmitting a punching pressure applied to the punch head between the punch head and the punch driver to the punch driver is integrated with the punch head. A jig block for screwing the inner surface of the guide member and the outer peripheral surface of the punch driver with each other to rotate the punch driver relative to the punch head and the guide member. And a punch insertion hole is provided in the punch head for rotating the jig block. The punch mold to be used. 2. The jig block has a cylindrical shape as a whole and has a flange at an upper end, and the flange is allowed to rotate only between the punch head and the guide member. It has a non-circular hole into which the turning height adjustment tool fits, and a lower end portion having a non-circular portion that fits into a non-circular concave portion provided on the upper end surface of the punch driver. The punch die according to claim 1, wherein 3. A non-circular hole having the same shape and size as a non-circular hole provided in the jig block is provided on a head of a bolt for fastening the punch body and the punch driver. The punch die according to claim 1 or 2, wherein: 4. A handle for an operator to grip and operate, a shaft provided orthogonal to the handle, and a fitting portion having a non-circular cross section at the tip of the shaft. A height adjusting tool, wherein a portion is smaller than a tool insertion hole provided in a punch head and has the same shape and size as a non-circular hole provided in a jig block. 5. A punch when a fitting portion provided at a tip of the shaft fits into a non-circular hole of the jig block when the shaft is inserted from a tool insertion hole of the punch head. The height adjusting tool according to claim 4, wherein a pin is detachably provided at a predetermined position of the shaft so as to stop the shaft by contacting the upper surface of the head.