JPH02255223A - Press type deburring machine - Google Patents

Abstract

PURPOSE:To cut burrs at the same time as to straighten strain and bond of a work by providing a dedicated deburring broach blade operating in synchronization with the layer relative monitor of deburring dies to press-in dies to blank a work into a die. CONSTITUTION:The work is set on a deburring lower die 19, a main pressurizing cylinder 10 is lowered and halts temporarily as the work is held lightly by a press-down upper die 14. Burrs on the side are cut by side broache cutting edge 17 through the advance of a side cylinder 12, then, the broaches, etc., return to the initial positions. The lower cylinder 11 is elevated, the broach blades 8, 9 pass through the broach guide groove of the lower die 19 for burring and project upward, cut the burrs at the weir part and the shadow part of the projecting part of the work, then, return to the initial positions. The main pressurizing cylinder 10 is lowered again, the work is pressed down by the press-down upper die 14 and blanked by the cutting blades on the outer peripheral edge part of the lower die 19, the corner burrs are cut, then, the cutting blades return to the initial positions. The work is discharged outward through a shoot 21.

Description

[Detailed Description of the Invention] [Object of the Invention] [Field of Industrial Application] The present invention relates to a press-type deburring machine that can be used over a wide range of applications regardless of the material, shape, size, etc. of the workpiece. .

[Conventional technology]

BACKGROUND OF THE INVENTION Conventionally, deburring machines have been used in a wide variety of fields, using, for example, a hydraulic press to perform press burr cutting in response to the movement of a ram from above or below.

[Problem to be solved by the invention]

However, the above-mentioned conventional press type deburring machine had the following problems.

(1) Since the head requires a large amount of cutting, - - cutting is difficult, and cutting is required to be done in multiple steps or in multiple stages.

■ The mold in this area is severely worn and the mold life is short.

■ Defects occur and the quality deteriorates.

■ The relevant part must be removed using a grinder in advance, which causes problems such as dust, white wax disease, danger, and fatigue.

(2) Because it is difficult to cut the part of the reverse taper and the shape of the protrusion, it is impossible to cut in - times, so cutting is done in two or three times by changing the orientation of the workpiece using a separate machine. There are many problems, such as a large number of processes, a large number of machines and cutting jigs, a large space, low productivity, and the need for skill.

(2) When the relevant portion is removed using a grinder after pressing or before pressing, the same problem as (1) in item (1) above occurs.

Therefore, the present invention solves these problems, and at the same time corrects the distortion and bending of the workpiece, it is possible to cut burrs, and it is possible to cut burrs on complex-shaped objects (e.g., three-dimensional shapes) and heavy objects, thereby improving quality. The technical challenge is to improve productivity and productivity.

[Structure of the invention]

(Means for solving the problem) The technical means taken to solve the above problem is to synchronize the relative movement between the burr cutting mold and the pushing die for punching the workpiece into the mold. A special broach blade for deburring is included.

(Function) According to this, the thick base of the workpiece, the reverse taper part, and the bulge of the protrusion that cannot be cut with a full-throwing die can be cut with a special broach blade, and the remaining burrs can be cut relatively easily. It is possible to cut the parts using a burr-cutting mold, and the cutting can be done almost simultaneously, which makes it possible to achieve the above-mentioned problem.

(Example) Hereinafter, an example embodying the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view showing the main parts of a press-type deburring machine.
11.12. Its main pressurizing (upper) cylinder 1
0 and the lower cylinder 11 are fixedly arranged on the vertical axis of the main body of the hydraulic press machine, and the side cylinder 12 is fixedly arranged on the right side surface.

Each of the three cylinders 10, 11, and 12 can be pressurized and stopped at any position by a separate control device.

A lowering ram disk 13 fixed to the main pressurizing (upper) cylinder 10 is attached with a push-down upper die 14 shown in the second figure, and a rising ram disk 15 is fixed to the lower cylinder 11.
, the cutting broach blade 8 of the head 29 and the burr 3 of the swelling part are shown.
A cutting broach blade 9 is attached to the side cylinder 12, and a side detail cutting broach blade 17 is attached to a plate 16 fixed to the side cylinder 12.

An intermediate surface plate 18 placed on the hydraulic press main body is disposed between the upper cylinder 10 and the lower cylinder 11, and a lower mold 19 for cutting burrs shown in the third figure is fixedly installed on the surface plate.

Incidentally, the intermediate surface plate 18 may be omitted and the burr cutting lower die 19 may be directly attached and fixed to an appropriate location such as the leg of a hydraulic press.

The intermediate surface plate 18 includes a central cavity 20 for taking out a workpiece, and the cavity communicates with the outside via a chute 21.

The press-down upper die 14 has a thickness cut 23 inside so that it can press a necessary part of the work 22 along the outer shape of the upper part of the work 22 shown in FIG. A hollow portion 24 is formed in the mold 19 by punching out along the planar contour shape of the workpiece 22, and the outer peripheral edge thereof constitutes a cutting blade 25, and the cutting broach blade 8 of the head 29 is formed in the mold 19.
Broach guide grooves 26 and 27 are formed through which the broach blade 9 for cutting the burr 3 of the bulge passes.

In the above structure, First, the workpiece 22 is set on the lower mold 19 for cutting burrs.

The main pressurizing (upper) cylinder 10 descends, and the upper die 14 presses down to prevent the workpiece 22 from being lifted up by cutting from below the cutting broach blade 8 of the head 29 and the broach blade 9 for cutting the burr 3 of the bulge. Also, broach blade 17 for side detail cutting
When cutting from the right side, stop briefly to prevent it from moving to the left.

Next, as the side cylinder 12 moves forward, the side broach blade 17 cuts off the burr 28 on the side surface, and then it retreats and returns to its original position.

Subsequently, the lower cylinder 11 rises, and the broach blade 8 for cutting the head 29 and the broach blade 9 for cutting the burr 3 of the bulge pass through the broach guide grooves 26 and 27 of the lower die 19 for burr cutting. After protruding upward and cutting off the head 29 of the workpiece 22 and the burr 31 on the swelling part of the protrusion 30, it descends and returns to its original position.

Subsequently, the main pressurizing (upper) cylinder 10, which has been stopped for a while and is on standby, descends again, and the workpiece 22 is pushed down by the push-down upper mold 14, and the outer peripheral edge cutting blade 25 of the lower mold 19 for burr cutting is used to cut the workpiece. After punching out 22 and cutting off the burr 32 at the cut-off part, it rises and returns to its original position.

The workpiece 22 includes a lower mold 19 for cutting burrs and an intermediate surface plate 18.
The rain passes through the rain cavities 24 and 20, falls through the chute 21, and is discharged to the outside.

The order of operation of the side broach blade 17 during the above process, the broach blade 8 for cutting the head 29, and the broach blade 9 for cutting the burr 3 of the swelling part may be reversed, and With the broach blade 8.9 protruding, the main pressurizing (upper) cylinder 10 further lowers and punches, and the upper and lower cylinders 10 and 11 rise and fall almost simultaneously to return to their original positions, which improves efficiency. Changes can be made for improvement.

(Effects of the invention) As is clear from the above explanation, even if the head of the workpiece has a large amount of cutting, since the cutting is done with a special broach blade, there is no uneven wear and tear on the die, and the life of the die is extended. Since the cutting is not done by force, there is no occurrence of defects caused by the cutting, and the head can be removed with a grinder in advance, and all the problems that have arisen due to this will be resolved.

In addition, even if the workpiece has a reverse taper part or a bulge on a protrusion, it can be deburred with a special broach blade, so it can be done manually without the need for multiple steps, a large number of machines, or cutting tools. There are no problems associated with this, and productivity can be significantly improved without requiring special skill.

In addition, it is possible to remove distortion and correct bends in the workpiece by adjusting the workpiece attachment and the position of the special broach, and it is also effective for partial cutting of three-dimensional complex-shaped objects and heavy objects. This makes it possible to significantly improve quality and productivity depending on how the present invention is applied on-site.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing the main parts of an embodiment embodying the present invention, Fig. 2 is a partially enlarged perspective view of the push-down upper mold in Fig. 1, and Fig. 3 is the same as Fig. 1. Fig. 4 is an enlarged perspective view of the lower mold for cutting burrs inside, and Fig. 4 is an enlarged perspective view of the workpiece. 8.9.17-Broach blade, 14--Pushing die, 19--Burr cutting mold, 22--Workpiece, 28.29.31--Burr.

Claims (1)

[Claims] In a deburring machine that removes burrs from a workpiece by a relative movement between a burr cutting die 19 and a push die 14 for punching a workpiece 22 inside the die, the deburring machine operates in synchronization with the relative movement. A press-type deburring machine characterized by being equipped with special broach blades 8, 9, and 17.