JP3469929B2 - Deburring method and punching die for punch press - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring method in a punch press press and a deburring die therefor, and more particularly to a die auto index mechanism mounted on a die supporting portion of the punch press. A deburring tool is provided on the bottom of the punch or the top of the die of the provided molds.
The present invention relates to a deburring method and a deburring die for a punch press that removes burrs generated during processing of a workpiece.

[0002]

2. Description of the Related Art Hitherto, as a punch, for example, a turret punch press, a structure disclosed in Japanese Patent Publication No. 38570/1989 has been provided. This conventional structure is equipped with an auto index mechanism, and is a turret punch press equipped with an upper turret equipped with a large number of upper molds and a plurality of lower molds facing the upper mold. The mold can be rotated. Then, the work inserted between the upper die and the lower die is punched.

Burrs are generated on the work after punching. Usually, after performing punching, an operator manually deburrs or deburrs a separately installed deburring machine. It is common to have

[0004]

By the way, among the deburring means for removing burrs generated on a work after punching by the above-mentioned conventional turret punch press, manual deburring requires man-hours and manpower. In addition, there is a problem that the dedicated deburring machine requires equipment cost and cannot improve productivity. In recent years, a punch press has been actively used for forming. However, if forming (particularly bending) is performed immediately after punching, burr remains on the formed part. Will end up. In the deburring process of this portion, there is a problem that the process is very difficult to perform when it is performed as a post process.

The object of the present invention is to perform punching, forming and deburring by one machine,
It is intended to provide a deburring method for a punch press and a deburring die thereof for realizing a burr-free processing of a forming processing portion, shortening all processing time, and rationalizing a processing flow.

[0006]

In order to achieve the above object, a method for deburring a punch press according to the present invention is a punch bottom surface provided in a die auto indexing mechanism mounted on a die supporting portion of the punch press, or Using a mold with a removable deburring tool on the upper surface of the die,
The mold is rotated while the work is pressed by the punch and the die to deburr the work.

Further, in the deburring method of the punch press, while rotating a die provided with a deburring tool on the bottom surface of the punch or the top surface of the die provided in the die auto indexing mechanism, the work is moved back and forth and left and right. It is desirable to deburr the workpiece by moving it one axis at a time.

Further, the deburring die of the present invention is characterized in that a deburring tool having a polishing member on the surface thereof is detachably provided on the bottom surface of the punch or the upper surface of the die.

Furthermore, in the deburring die of the present invention, it is desirable that the polishing member provided on the surface of the deburring tool is a buff sheet to which abrasive powder is adhered, or a brush tool in which a brush is implanted. It is a thing.

Furthermore, it is desirable that an adhesive tape or a surface fastener is provided on the adhesive surface of the deburring tool so that it can be detachably attached to the bottom surface of the punch or the upper surface of the die.

[0011]

By using the deburring method and the deburring die of the punch press of the present invention, after punching is performed by the punch press, the die auto indexing mechanism mounted on the die supporting portion is provided. A deburring tool is attached to the bottom surface of the punch or the top surface of the die, which is a die, and the die is rotated while the work is pressed by the punch and the die. Since the polishing member is attached to the deburring tool, the deburring can be surely removed.

Further, the burrs can be removed more completely by rotating the die and moving the work one axis at a time in the front-back and left-right directions.

Further, in the case where the forming process is performed after the punching process and the deburring process can be performed only after the forming process,
By depressing a brush tool as a deburring tool to the mold and performing the above-mentioned operation, deburring of the molding portion can be removed.

[0014]

Embodiments of the present invention will be described in detail below with reference to the drawings. Although the turret punch press is adopted as an embodiment for carrying out the present invention, the present invention is not limited to this model. Further, since the turret punch press has a known structure, detailed illustration and description will be given. Omit it.

Referring to FIG. 6, the turret punch press 1 includes side frames 5 and 7 which are erected on both sides of a base 3.
The upper frame 9 is supported by a gate frame.

On the lower surface of the upper frame 9, a disc-shaped upper turret 13 having a large number of punches 11 mounted thereon is rotatably mounted by an upper rotary shaft 15. On the upper surface of the base 3, a large number of dies 1 facing each punch die 11 are provided.
A lower turret 19 equipped with 7 is rotatably mounted by a lower rotary shaft 21. The upper turret 13 and the lower turret 19 are rotated in the same direction in synchronization with each other by a servomotor (not shown) mounted in the frame, so that the punches, dies 11, and 17 are attached to the lower surface of the upper frame 9 by hydraulic pressure, for example. It is indexed and positioned directly below the ram 23 mounted vertically movable by a cylinder.

Guide rails 25 extending in the left-right direction in FIG. 6 are provided on the front and rear surfaces near the upper surface of the base 3.
, And a movable table 27 is movably supported on each guide rail 25. Each movable table 27 is a fixed table 29 fixed on the base 3.
The movable tables 27 are integrally connected to each other by carriage bases 31 which are located on both front and rear sides and extend in the front-rear direction while straddling the fixed table 29. On the carriage base 31, a carriage 3 which is movable in the front-rear direction orthogonal to the moving direction of the movable table 27.
3 is attached to the carriage 33, and a plurality of clamp devices 35 capable of gripping one side edge of the plate-shaped work W are attached to the carriage 33.
Is mounted so that the position can be adjusted in the front-back direction.

7 and 8 are provided at appropriate positions (symmetrical positions in this embodiment) on the upper surface of the upper turret 13.
As shown in FIG. 3, upper rotatable mold holders 37a and 37b that are rotatable with respect to the upper turret 13 are rotatably mounted, and these upper rotatable holders 37a and 37b extend in the radial direction on the upper turret 13. Then, the first interlocking member 39 rotatably mounted is interlocked so as to rotate in interlocking manner. Further, lower rotary die holders 41a and 41b are rotatably attached to the lower turret 19 at positions where the lower turret 19 corresponds to the upper rotary die holders 37a and 37b. Mold holder 41a,
41b is interlockingly connected to the lower turret 19 so as to rotate interlockingly with the second interlocking member 43 which is rotatably attached and extends in the radial direction.

The first interlocking member 39 and the second interlocking member 43
The configurations of and are substantially similar to each other, and both ends of each of the configurations slightly project in the radial direction from the outer peripheral edges of the upper turret 13 and the lower turret 19. The end of the first interlocking member 39 is engageable with the end of the first transmission shaft 47 of the upper transmission device 45 mounted on the upper frame 9, and the end of the second interlocking member 43 is mounted on the base 3. Lower transmission 49
Is engageable with the end portion of the second transmission shaft 51. The upper and lower transmission devices 45 and 49 have substantially the same structure and are interlocked with a rotary drive device 53 such as a servo motor properly mounted on the frame.

Therefore, the end of the first interlocking member 39 is engaged with the end of the first transmission shaft 47, and the end of the second interlocking member 43 is engaged with the end of the second transmission shaft 51. At some point
By rotating the rotation driving device 53, the upper rotary mold holders 37a and 37b and the lower rotary mold holder 4 are rotated.
1a and 41b are simultaneously rotated in the same direction.
Therefore, the upper and lower rotary mold holders 37a, 37b; 41
The punch 11 and the die 17 supported by a and 41b are rotated with respect to the upper and lower turrets 13 and 19, so that the directionality of the die can be positioned in any direction with respect to the upper and lower turrets 13 and 19. It is a thing.

Further, by continuously rotating the rotary drive device 53, the upper rotary mold holders 37a, 37b and the lower rotary mold holders 41a, 41b are simultaneously rotated continuously in the same direction. Therefore, the punch 11 and the die 17 supported by the upper and lower rotary die holders 37a, 37b, 41a, 41b are continuously rotated in the same direction.

Next, the upper rotary mold holders 37a and 37b having the punch 11 will be described in more detail.
Note that the description is directed to the upper rotary mold holder 37a, and the upper rotary mold holder 37b side has exactly the same configuration, so the description thereof will be omitted. Further, the lower rotary mold holders 41a and 41b equipped with the die 17 are also connected to the upper rotary mold holder 37.
Since the structure is substantially the same as that of a and 37b, illustration and description thereof will be omitted.

Referring to FIG. 9, a cylindrical bush member 57 is formed in the upper turret 13 and fitted and fixed in a die holder hole 55. A plurality of bearings 59 are provided inside the bush member 57. A cylindrical rotation holder 61 is rotatably supported via the interposition. A worm gear 65 that meshes with the worms 63a and 63b, which is a member of the first interlocking member 39, is integrally fixed to the upper part of the rotary holder 61 by bolts or the like, and A positioning key 69 for directionally positioning the detachable and replaceable upper mold set 67 is integrally attached.

Therefore, the worms 63a, 63b
When is rotated in an appropriate direction, the rotation holder 61 is rotated with respect to the upper turret 13, and the upper mold set 67 attached to the rotation holder 61 is rotated. The upper mold set 67 is the lifter spring 7 in the general mold lifter device 71 mounted on the upper turret 13.
It is always urged upward by the action of 3.

Next, the deburring tool which is the main part of this embodiment will be described in detail.

Referring to FIG. 1, a deburring tool 75 is attached to the lower surface of the punch 11 to form a deburring die. More specifically, the deburring tool 75 is a buff sheet 81 in which, for example, gold steel sand or the like is adhered to the circular sheet 79 as the polishing member 77, and the back surface of the buff sheet 81 and the lower surface of the upper mold 11 are adhered to the adhesive tape 83A. Alternatively, the surface fastener 83B is detachable. The hook-and-loop fastener 83B is Velcro (registered trademark) or the like.

Further, as shown in FIG. 2, a deburring tool 75 in which a brush 87 is planted on a circular sheet 85.
By using the same adhesive means as in the first embodiment described above.
It is provided in 1. The brush 87 is a hard plastic thin wire, a steel thin wire, or the like.

With the above structure, when the punch 11 having the buff sheet 81 shown in FIG. 1 attached thereto is used, the punched work W is used as a flat work. When the deburring tool 75 including the brush 87 shown in FIG. 2 is used, it is used after the punching process to remove burrs from the molded work.

Further, the deburring die 7 shown in FIG.
5 is the deburring tool 75 described in FIG.
The deburring die 75 shown in FIG. 4 is formed by adhering the deburring tool 75 described in FIG. 2 to the upper surface of the die 17. Is. Since each deburring tool 75 is the same member as that described with reference to FIGS. 1 and 2, the same reference numerals are given and description thereof is omitted.

With the above-mentioned configuration, as to the operation, referring to FIG. 5 together, the punch 11 provided in the die auto-indexing mechanism mounted on the upper and lower turrets 13 and 19 of the turret punch press 1 and the die. The deburring tool 75 is attached to the facing surface of 17. Then, a normal punching process is performed (step S1).

Next, the punch 11 and the die 17 to which the deburring tool 75 is attached are selected and positioned immediately below the ram 23 (step S2).

Then, the ram 23 is lowered and the work W is depressed with the deburring tool 75 attached to the punch 11 and the die 17.
The worm 63 is driven by driving the rotary drive device 53, which is an automatic indexing mechanism, while pressing.
a and 63b rotate. Since the worm gear 65 meshing with the worms 63a and 63b is rotated to rotate the punch 11 and the die 17, burrs generated on the work surface are removed by the deburring tool 75 attached to the punch 11 and the die 17. .

At this time, in order to make the pattern after deburring uniform, the clamp device 35 holding the work W is moved back and forth,
Move one axis to the left and right. That is, at the same time X,
The Y axis is moved one axis at a time, and deburring is performed (step S3). After the deburring process is completed, the work W is formed (step S4).

Further, when the deburring process can be performed only after the molding process, the brush 87 is replaced with the deburring tool 75 in which the bristles are planted, and the work of step S2 described above is performed. It becomes possible (step S5).

Note that the series of movements described above is automatically performed even by deburring processing by making the NC apparatus software perform processing conditions such as workpiece dimensions and processing position by simply inputting them to the NC apparatus. It becomes possible.

Then, using the conventionally used auto index mechanism, the punch 11 and the die 17 to which the deburring tool 75 is attached by the ram 23 are rotated while being pressed, and the work W is moved forward and backward and left and right. By deburring by moving each axis, not only punching but also burrless machining of the molding part can be performed. Also, one machine can be used for both punching and deburring.
The processing time can be shortened and the processing flow can be rationalized.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0038]

As can be understood from the above description of the embodiments, according to the present invention, a conventional auto indexing mechanism is used to work with a punch and a die provided with a deburring tool by descending a ram. While pressing while rotating, the work is moved back and forth and left and right one axis at a time for deburring.

Thus, punching, forming and deburring can be carried out with one machine, and burr-free processing of the forming processing portion and reduction of all processing time can be achieved.
It is possible to rationalize the flow of processing.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of the present invention, in which a buff sheet type deburring tool is attached to a punch.

FIG. 2 is a perspective explanatory view showing a main part of the present invention, in which a brush is attached with a brush type deburring tool.

FIG. 3 is a perspective explanatory view showing a main part of the present invention, in which a buff sheet type deburring tool is attached to a die.

FIG. 4 is a perspective view showing a main part of the present invention, in which a brush-type deburring tool is attached to a die.

FIG. 5 is an explanatory view of the operation of the present invention.

FIG. 6 is a front explanatory view of a turret punch press of an embodiment for carrying out the present invention.

7 is an enlarged plan explanatory view taken along the line VII-VII in FIG.

FIG. 8 is a schematic enlarged side view as seen from the lower side in FIG.

9 is an enlarged cross-sectional explanatory view taken along the line IX-IX in FIG. 7.

[Explanation of symbols]

1 Turret punch press (punch press) 11 punches 13 Upper turret 17 die 19 Lower turret 75 Deburring tool 77 Abrasive member 81 buff sheet 83A adhesive tape 83B surface fastener 87 brushes

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-8062 (JP, A) JP-A-57-83399 (JP, A) JP-A-59-30433 (JP, A) JP-A-63- 80929 (JP, A) JP-A-5-84526 (JP, A) JP-A-6-126533 (JP, A) Actually opened 58-111122 (JP, U) Actually opened 4-129522 (JP, U) Actual Kaihei 6-24894 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B21D 28/00 B21D 28/16 B21D 28/34 B21D 28/36 B21D 37/04 B23P 13 / 02 B24D 7/18

Claims (6)

(57) [Claims] 1. A punch having a removable deburring tool on the bottom surface or the top surface of a die provided in a die automatic indexing mechanism mounted on a die supporting portion of a punch press is used to punch a workpiece. A deburring method in a punch press, characterized in that a mold is rotated while being pressed by a die and a die to deburr a work. 2. The work is deburred by rotating a mold provided with a deburring tool on the bottom surface of the punch or the upper surface of the die, which is provided in the mold auto indexing mechanism, and moving the work back and forth and left and right one by one. The method for deburring a punch press according to claim 1, wherein: 3. A deburring mold, wherein a deburring tool having a polishing member on its surface is detachably provided on the bottom surface of the punch or the upper surface of the die. 4. The deburring die according to claim 3, wherein the polishing member provided on the surface of the deburring tool is a buff sheet to which polishing powder is adhered. 5. The deburring die according to claim 3, wherein the polishing member provided on the surface of the deburring tool is a brush tool in which brushes are implanted. 6. The adhesive tape or hook-and-loop fastener is provided on the adhesive surface of the deburring tool, and the adhesive tape or hook-and-loop fastener is attachable to and detachable from the bottom surface of the punch or the upper surface of the die. Deburring mold.