JPS6034420Y2 - Deburring device - Google Patents

Description

[Detailed description of the invention] This invention relates to a deburring device for press-molded products, resin-molded products, etc.

Conventionally, for example, in press-formed automobile bumpers, etc., burrs occur when punching the outer periphery, and these are removed using a sander.
The crispness is removed manually using a puff or other method.

However, the above-mentioned deburring work requires time and skill, has poor workability, and in particular, there are variations in the deburring accuracy, and
The generation of dust poses eye hazards and health problems for workers due to inhalation, and the work is performed outside the press molding line, resulting in poor work efficiency.

There is also a deburring device used in the rolling process as a device for deburring the peripheral edge of a workpiece. A simple strip-shaped workpiece will suffice, but if it is a more complex and large automobile part, a complicated and large-sized clamping device to support the workpiece or a moving device to transport the workpiece is required. There was a problem in that the equipment required was large and expensive.

This invention was devised in view of the above-mentioned drawbacks.Hereinafter, an example of the structure of this invention shown in the drawings will be explained.
It is as follows.

1 and 2, 1 is a lower die, 2 is an upper die, 3 is a pad, 4 is a deburring roller, 5 is a movable holder, 6 is a pressure control member such as a spring, 7 is a drive cam, and 8 is a Amplified passive cam, 9 indicates a workpiece.

The lower mold 1 is fixed to a machine base and is configured to support the work 9 in a fixed position with the deburring portion of the work 9 exposed.

The upper mold 2 is driven up and down by a crank or the like, and is used to deburr the workpiece 9 as described later.

For example, the pad 3 is suspended from the upper die 2 so as to be movable up and down (
(not shown), during the operation of the upper mold 2 approaching the lower mold 1, that is, during the deburring operation, the workpiece 9 is fixed in a state in which the deburring part is exposed in cooperation with the lower mold 1. be.

A presser roller 3a of the pad 3 is attached to the movable holder 5 to ensure that the workpiece 9 is fixed during deburring.

The deburring roller 4 rolls on the deburring portion of the workpiece 9 to crush deburrs and burrs, has a V-shaped groove in the center, and is made of a hard material.

The movable holder 5 is movably supported by a guide 10 in a direction along the deburring portion of the workpiece 9 with respect to the upper die 2, and is pressed to return to the starting end of the movement range by a spring 11. .

A plurality of deburring rollers 4 are attached to the movable holder 5 at appropriate intervals, and the support leg rods 12 of each are slidably inserted into and supported by the guide holes 13 of the movable holder 5.

Since the pressing force of the roller 4 increases as the upper mold 2 (movable holder 5) approaches the bottom dead center, it is backed up by the pressing force control member 6 so that a substantially angular pressing force can be obtained.

Although the drawing shows a case in which a spring is used as the pressurizing force control member 6, the pressurizing force may be controlled to be substantially constant by fluid pressure means.

The drive cam 7 is fixed to the upper mold 2, and correspondingly, the amplifying passive cam 8 is movably mounted on the lower mold 1.

This amplifying passive cam 8 is an inclined cam surface 7a of the drive cam 7.
and an inclined cam p8b corresponding to the inclined cam surface 5a of the movable holder 5.
4 allows it to be pressed and returned to the movement starting end via the connecting rod 15.

In addition, 16.17.1B and 19.20 are sliders made of oil-free wear-resistant members attached to their respective sliding surfaces.
This ensures smooth sliding motion and prevents wear.

Normally, the upper mold 2 is returned upward, and therefore,
A workpiece 9 can be supplied to the lower mold 1.

In this state, the amplifying passive cam 8 is connected to the spring 14.
It is located at the starting end of movement, that is, at the left end in FIG.

When the workpiece 9 is supplied to the lower die 1, the upper die 2 is lowered and the pad 3 cooperates with the lower die 1 to fix the workpiece 9 in the state shown in FIG.

At this time, the movable holder 5 is located at the left end in FIG. 2 due to the spring 11, and as it descends together with the upper mold 2, its inclined cam surface 5a abuts against the inclined cam surface 8b of the passive amplification cam 8. It is moved to the right in FIG.

This amount of movement is amplified by the drive cam 7 moving the amplifying passive cam 8 to the right in FIG. 2 relative to the lower mold 1.

By the movement of the movable holder 5, the deburring rollers 4 are simultaneously moved by the same amount along the deburring portion of the workpiece 9, thereby deburring the workpiece 9.

That is, the deburring roller 4 removes the workpiece 9 as the upper mold 2 descends.
The workpiece 9 is brought into contact with the deburring part of the workpiece 9 in the state shown in FIG.

In order to uniformly deburr the workpiece 9 by shifting the deburring roller 4, the above-mentioned pressing force control member 6 is added. The pressure is approximately angular.

The arrangement pitch of the deburring rollers 4 is made slightly smaller than the amount of displacement of the deburring rollers 4 by the cam described above, thereby deburring the workpiece 9 uniformly and without interruption over the entire length.

That is, each deburring roller 4 deburrs the workpiece 9 in its own share, and because the arrangement pitch is smaller than the amount of transfer, the deburring rollers 4 overlap slightly with each other and deburr perfectly over the entire length of the workpiece 9. This is what we do.

Thus, when the deburring is completed, the upper mold 2 is raised and returned, the movable holder 5 and the amplifying passive cam 8 are automatically returned to their original positions, that is, the movement start end, and the knockout member (not shown) incorporated in the lower mold 1 is removed. The workpiece 9 becomes the lower die 1.
It is pushed up from the top and then discharged to a side discharge conveyor or the like by a kicker (not shown).

Subsequently, the next workpiece 9 is supplied to the lower die 1, and the above-described operations are repeated to remove the burrs.

It is clear that the device of the present invention can use a normal press machine such as a crank press, can be incorporated into a bottom line, and can improve work efficiency.
Further, generation of dust as in conventional sanders and puffs can be prevented, and the working environment can be improved.

As explained above, this idea consists of a fixed lower mold that supports the workpiece in a fixed position with the deburring part exposed, an upper mold that faces the lower mold and can be approached and separated from the lower mold, and a A movable holder is attached to the bottom surface of the workpiece so that it can be moved horizontally along the deburring part of the workpiece, a pad is suspended from the upper die so that it can be moved vertically, and a movable holder that is attached to the bottom surface of the movable holder is movable along the deburring part of the workpiece. A plurality of deburring rollers that can be raised and lowered at intervals slightly shorter than the horizontal movement stroke of the holder;
The pressure control member interposed between the movable holder and each deburring roller, the drive cam attached to the upper mold, and the movable holder and drive cam allow the lower mold to slide in the same direction as the movable holder. It consists of an attached amplifying passive cam, and when the upper die moves downward, the pad fixes the workpiece to the lower die, and then the deburring roller is pressed against the deburring part of the workpiece, and then the drive cam moves the workpiece through the amplifying passive cam. The movable holder is moved by the movable holder, and the deburring roller attached to the movable holder is rolled along the deburring part of the workpiece to remove deburring. The workpiece can be securely fixed by the pad and the lower die, and the deburring roller can be reliably rolled over the entire length of the deburring portion of the workpiece to remove deburring.

In addition, the entire device has become smaller and the deburring device has been configured using a press machine, so it can automatically remove deburrs from press-formed products and can be integrated into the molding line, significantly increasing production efficiency. can be improved,
Moreover, it has the advantage of improving deburring accuracy and improving the working environment.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of a main part of the device of the present invention, and FIG. 2 is a schematic longitudinal sectional side view of the entire device. 1...Lower mold, 2...Upper mold, 3...
...Pad, 4...Deburring roller, 5...
...Movable holder, 6...Pressure force control member 7
...Drive cam, Death...Amplified passive cam, 9...Work.

Claims (1)

[Scope of utility model registration request] A lower mold that supports the workpiece in a fixed position with the deburring part exposed upward, an upper mold that faces the lower mold and can be approached and separated from the lower mold, and a mold that supports the deburring part of the workpiece on the underside of the lower mold. A movable holder is attached so that it can be moved horizontally along the line, a pad is suspended and supported by the upper die so that it can move up and down, and the lower surface of the movable holder is attached so that it can be moved horizontally along the deburring part of the workpiece. A plurality of deburring rollers that can be raised and lowered at short intervals, a pressure control member interposed between a movable holder and each deburring roller, a drive cam attached to the upper mold, a movable holder and a drive. It consists of an amplifying passive cam attached to the cam so that it can slide in the same direction as the movable holder, and when the upper die moves downward, the workpiece is fixed to the lower die with a pad, and then the deburring roller is moved to remove the deburring part of the workpiece. After pressing the workpiece, the movable holder is moved by a drive cam via an amplified passive cam, and a deburring roller attached to the movable holder is rolled along the deburring part of the workpiece to remove deburring. A deburring device featuring: