JPS605949Y2 - Forged product deburring finishing equipment - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The disclosed technology belongs to a technology that enables the outer and inner edges of a forged product to be reliably separated and finished in a single process using a device with a simple structure. .

Therefore, this invention consists of a set mold having a mounting surface on which a forged product can be set, and a burr punch which is provided opposite the set mold to enable the punching of burrs. The present invention relates to a finishing device for removing burrs from forged products, and in particular, it relates to a finishing device for removing burrs from forged products, and in particular, the burr punch described above is an outer burr punch and an inner burr punch is inserted into the outer burr punch. Be able to respond to both at the same time,
In addition, a support having a supporting part for the lower surface of the forged product and a receiving part of the punched inner part in the cavity formed inside the above-mentioned placement surface is provided by supporting the plate with an elastic machine. This invention relates to a forging product burr removal finishing device which is capable of punching out both the outer burr and inner burr.

<Prior art> In general, there is considerable allowance for processing equipment, not just forging machines, but the accuracy of the finishing equipment that follows it is strictly regulated, and it occupies an important position in ultimately determining the accuracy of the product.

Therefore, in a forged product deburring device for a forging machine, it is important to deburr the product in a manner that does not cause distortion in the product since it will affect the finishing process as described above.

As is well known, in forged products, burrs such as an outer burr and an inner burr are formed during forging, and the conventional method for removing the outer burr, inner burr, etc. has been to remove the outer burr and inner burr in separate processes. When a forged product is used and removed in a single process, the forged product is placed on the mounting surface 3 of the set die 2 of the forged product deburring finishing device 1 and is waiting to be finished, as shown in Fig. 1. 4, an outer burr punch 5 is provided at the top in the drawing, and an inner burr is inserted into the support member 7 of the forged product 4, which is provided in the inner cavity 6 of the mounting surface 3. There is a method of simultaneously removing both the outer burr 9 and the inner burr 10 of the forged product 4 in a single process using the punch 8.

<Problem that the invention attempts to solve> However, in the method of removing by a separate process,
There is a drawback that the productivity decreases due to the increase in the number of steps, and the method of providing the inner burr punch 8 in the inner cavity 6 of the mounting surface 3 of the set mold 2 shown in FIG. As the punched inner burr 10 passes upward in the drawing of the forged product 4, the punched inner burr 10 remains on the forged product 4, and as a result, the punched inner burr 10 is manually removed separately. There was a problem in that it was difficult to perform the work efficiently as it had to be removed.

In addition, when the punch 8 for the inner burr 10 is attached to the upper die and the inner burr 10 and the outer burr 9 are removed in a single process, the outer burr 9 is removed before the inner burr 10. When the forged product is pulled out, the forged product is no longer fixedly supported, causing problems such as the inner burr 10 not being punched out or the forged product being deformed.

The purpose of this invention is to solve the problems of the forged product deburring finishing device based on the above-mentioned conventional technology as a technical problem, to reliably shape the forged product in a single process, and to suppress product distortion. It is an object of the present invention to provide an excellent forged product deburring finishing device which facilitates the post-processing of punched inner deburrs and is useful for deburring applications in the manufacturing industry.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is summarized in the scope of the above-mentioned utility model registration claims, is a processed and shaped forged product set in a set mold in order to solve the above-mentioned problems. If an impact is applied using an inner burr punch and an outer burr punch inserted with the inner burr punch, the inner burr will be struck first due to the tensile force of the outer burr and the drag from the receiving plate supported by the bullet. It is punched out and falls into the saucer, and then the outer edge is also punched out, making it possible to reliably shape the forged product in a single process, and furthermore, the technology enables easy post-processing of the punched inner edge. The measures were taken.

<Embodiment - Configuration> Next, one embodiment of this invention will be described as follows based on the drawings from FIG. 2 onwards.

Incidentally, parts having the same aspect will be explained using the same reference numerals.

In Figs. 2 and 3, numeral 1 is a forged product deburring finishing device that embodies the gist of this invention.

2 is a set mold of the forged product deburring finishing device 1;
It is installed on a predetermined base (not shown).

A cavity 6 having a set size is formed at a predetermined position in the set mold 2, and the opening of the cavity 6 serves as a mounting surface 3 for the outer burr 9 of the forged product 4.

The forged product 4 processed and shaped in the previous stage is placed and locked on the mounting surface 3 via the outer burr 9, and the lower surface 11 of the forged product 4 is placed inside the cavity 6. The support is supported in contact with the upper edge surface 13 of the plate 12.

The receiver has a hole 14 formed inside the upper edge surface 13 of the tray 12, and a recess 16 (not shown) is formed in the lower surface 15 of the tray 12. The receiver supports the plate 12 by fitting urethane rubber 17 as a bullet fixed on a predetermined base.

The lower body portion 18 of the tray 12 is locked and fixed by a locking portion 20 formed on the inner surface 19 forming the cavity 6 of the set mold 2.

An outer burr punch 21 connected to a drive mechanism (not shown) is provided above the set mold 2, and an inner burr punch 22 is inserted into the outer burr punch 19. .

The outer burr punch 21 and the inner burr punch 22
are the upper end surfaces 23 of the forged product 4 when they are lowered.
, and is provided at a predetermined position so as to come into contact with the inner burr 10 formed inside the forged product 4.

<Embodiment - Effect> In the above configuration, a forged product 4, such as a steering knuckle, a ring gear, etc., which has been forged and processed into a predetermined shape on the mounting surface 3 of the set mold 2 and is waiting for finishing, is externally burred. The lower surface 11 of the forged product 4 is previously supported by the urethane rubber 17 in the cavity 6 of the set mold 2 via the holder 9, and fixed by being locked to the locking portion 20 of the set mold 2. The holder is fixed in contact with the upper edge surface 13 of the plate 12.

Next, the outer burr punch 21 and the inner burr punch 22 are applied to the forged product 4 set as described above.
When a predetermined impact force is applied by
The forged product 4 is supported by the drag force of 7, and therefore, the inner burr 10 of the forged product 4 struck by the inner burr punch 22 is first struck by the inner burr punch 22, as shown in FIG. , the inner plate 10' is punched out and the above receiver is plate 1
The receiver 2 falls into the hole 14 and is stopped.

Further, the outer burr punch 21 descends and hits the upper end surface 23 of the forged product 4, and when an impact force is applied against the resistance of the silicone rubber 17, the outer burr 9 of the forged product 4 is removed. Since the forged product 4 is in contact with the placement surface 23, it is sheared and punched out, and the shaping of the forged product 4 is completed.

At this time, when the inner burr punch 22 and the outer burr punch 21 punch out the inner burr 10' and the outer burr 9, distortion occurs in the inner burr 10' and the outer burr 9, so that the forged product 4 is No deformation or the like occurs, and the accuracy of the finishing process can be maintained accurately.

The inner shell 10' that has been punched out and fallen into the hole 14 of the tray 12 can be easily removed by using air or the like as appropriate.

<Other Embodiments> It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments, and various embodiments may be employed, such as changing the urethane rubber used as the bullet to an appropriate material such as a compression spring. can be adopted.

<Effects of the invention> According to this invention, basically, the inner burr punch of the forged product shaping device is incorporated into the outer burr punch, and the set die supporting the forged product is mounted. By supporting the forged product in the inner cavity of the mounting surface and providing a tray to support the inner shell supported by the bullet, the outer shell and inner shell can be reliably removed from the forged product in a single process. In addition to being able to shape the product in the previous stage, it also has the excellent effect of performing a highly accurate deburring finish without causing any distortion to the product as a finishing process for the product that has been formed in the previous stage.

Further, since the inner part punched from the forged product falls and is reliably separated from the forged product, there is also the advantage that there is no need for post-processing by hand or the like.

Further, since shaping can be performed in a single step, the workability is good, and there is also the advantage that automation can be easily performed.

Furthermore, since the structure is simple and there is little chance of damage, there is also the advantage that initial costs and running costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an explanatory sectional view of the prior art, and FIGS. 2-3 are explanatory views of one embodiment of this invention. FIG. 2 is an explanatory view of the stage before punching the inner burr, and FIG. 3 is an explanatory diagram of the stage after punching the inner burr. 9...Outer burr, 10.10'...Inner burr, 4...Forged product, 3...Placement surface,
2...Set mold, 21.22...Burr punch, 1...Forged product deburring finishing device, 21...Outer burr punch , 22...
...Inner burr punch, 6...Cavity, 11...
...Bottom surface, 17...Bunch.

Claims (1)

[Scope of utility model registration request] A forged product burr removal finishing device having a set mold having a mounting surface for the outer burr of a forged product having an outer burr and an inner burr, and a burr punch facing the set mold,
The above-mentioned burr punching punch has an outer burr punching punch and an inner burr punching punch inserted into the outer burr punching punch, and supports the lower surface of the forged product in the inner cavity of the above-mentioned mounting surface. A device for removing burrs from forged products, characterized in that a receiver for receiving burrs in punching of forged products is provided with a plate supported by a bullet machine.