JPH0740061U - Deburring device for work - Google Patents

Abstract

(57) [Summary] [Purpose] Easily remove burrs from the work (molded body) after the powder compacting process. [Structure] A brush member 30 for removing burrs on the upper surface of the work W is arranged above the entrance of a payout chute 28 which is inclined downward from the base 27 of the press molding apparatus 2, and the work W is slid down at a portion of the payout chute 28 where the work W slides down. A punching metal 33 for removing burrs on the lower surface was provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deburring device for deburring a work such as a powder-molded gear.

[0002]

[Prior art]

 As a method of manufacturing gears for vehicles, a method is known in which a compact formed by compaction is sintered into a product, and in this method, a molding device, A sintering furnace, quenching and tempering equipment, and various inspection equipment are arranged.

In such a gear manufacturing apparatus, burrs are generated in the molded body (workpiece) in the molding process, but since the work is soft, cracks easily occur and it is difficult to handle the work. No mechanism is provided to remove the burr on the product by shot blasting after sintering.

[0004]

[Problems to be solved by the device]

 If the work is deburred after sintering as in the conventional gear manufacturing device described above, work burrs may be missing in the work conveying path after the molding process until sintering, which may have an adverse effect. .

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a brush that contacts the upper surface of the work above the discharging suit that discharges the work from the forming device, and punching metal is used for the portion of the discharging chute that contacts the lower surface of the work. It consisted of a perforated plate such as.

[0006]

[Action]

 The burr on the upper surface of the work discharged from the molding machine is removed by a brush, and when the burr on the lower surface of the work slides down the ejection chute by its own weight, the burr on the lower surface of the work is removed by punching metal.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is an overall process diagram of a gear manufacturing apparatus incorporating a work deburring apparatus according to the present invention. The gear manufacturing apparatus is a raw material powder in which several elements are mixed with iron, which is the main component of the mixer 1. Is prepared, and the raw material powder is fed into the press molding device 2 in a fixed amount and molded into a gear shape at high pressure.

Next, after removing burrs on the surface of the molded body formed into a gear shape with the simple deburring device 3, the molded bodies are placed one by one on a ceramic tray and baked while being placed on the ceramic tray. After passing through the inside of the furnace 5, the sintering of the molded body is completed.

Then, the sintered body carried out from the sintering furnace 5 is transferred by the transfer device 7 to a transfer device 8 while changing its direction, and is transferred to the vicinity of the end of the transfer device 8 while being naturally air-cooled. After being separated from the ceramic tray by (1), the ceramic tray is inspected by the crack inspection device 9 for the presence of cracks, and then the normal ceramic tray is conveyed again to the vicinity of the inlet of the sintering furnace 5.

Next, a specific structure from the mixer 1 to the simple deburring device 3 according to the present invention will be described with reference to FIGS. 2 and 3. Here, FIG. 2 is a schematic configuration diagram from the mixer 1 to the simple deburring device 3, and FIG. 3 is a perspective view of a main part of the simple deburring device.

The mixer 1 feeds the raw material powder by a nozzle 21 onto the lower mold 22 of the press molding device 2 in a fixed amount, and the press molding device 2 lowers the upper mold 23 facing the lower mold 22 with the upper cylinder 24. After forming a gear shape with high pressure between the lower die 22 and the upper die 23, the lower cylinder 25 is operated to raise the lower die 22 to a predetermined position, and the work W, which is a gear-shaped formed body, is formed. The payout cylinder 26 sends it toward the simple deburring device 3.

The simple deburring device 3 is provided with a payout chute 28 that is inclined downward from a base 27 of the press molding device 2, and a blower chamber 29 is arranged continuously at the outlet of the payout chute 28.

A brush member 30 in which a brush 30a made of nylon, brass wire or the like is planted is arranged above the entrance of the dispensing chute 28. The brush member 30 is moved up and down by rotating the adjuster bolts 32 by screwing the adjuster bolts 32, 32 mounted on the support plates 31, 31 standing upright on both sides of the entrance of the payout chute 28. Hold on.

Further, the payout chute 28 is composed of a punching metal 33 on which a work slides down, and a bar receiver 34 (see FIG. 2) is attached below the punching metal 33 to receive a burr falling from the hole 33a. The blower chamber 29 is provided with an air blower 35 that is connected to a suction device and blows air onto the work W.

As a result, the work W discharged from the press-molding apparatus 2 is deburred on the upper surface of the work W by the upper brush member 30 when passing near the entrance of the discharge shoot 28. When sliding down the payout chute 28 by its own weight, the burrs on the lower surface of the work W are removed by the punching metal 33, and then air is blown in the blower chamber 29 to blow off the burrs remaining on the surface of the work W.

In the above embodiment, an example in which the present invention is applied to a gear manufacturing apparatus has been described, but it goes without saying that the work is not limited to the gear-shaped molded body. Further, although the punching metal is shown as the perforated plate, the hole may be formed in a slit shape.

[0017]

[Effect of device]

 As described above, in the deburring device for a work according to the present invention, the brush that comes into contact with the upper surface of the work is arranged above the discharging chute that discharges the work from the forming device. The contacting part is made of perforated plate such as punching metal, and the burr on the upper and lower surfaces of the work is removed immediately after the molding process, so that it is possible to remove the burr that easily falls in the subsequent transfer process, etc. It is possible to prevent adverse effects such as dropping.

[Submission date] April 6, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

In such a gear manufacturing apparatus, burrs are generated on the molded body (workpiece) in the molding process, but since the work is soft, cracks are likely to occur and it is difficult to handle the work. There is no mechanism to remove the burrs, and the burrs of the product are removed by shot blasting or brushing after sintering.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

[Problems to be solved by the device]

 When deburring a workpiece after sintering as in the conventional gear manufacturing apparatus described above, , In the sintering process The work burrWill sinter with the compact, and Problems such as difficulty in removing is there.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

[0017]

[Effect of device]

As described above, in the deburring device for a work according to the present invention, the brush that comes into contact with the upper surface of the work is arranged above the discharging chute that discharges the work from the forming device, and the lower surface of the work of the discharging chute is the portion in contact constituted by perforated plates, such as punching metal. Thus immediately after the forming step removes the workpiece upper and lower surfaces of the burr, the burr in the subsequent sintering process problems such sintering with moldings You can prevent it.

[Brief description of drawings]

FIG. 1 is an overall process diagram of a gear manufacturing apparatus incorporating a work deburring apparatus according to the present invention.

FIG. 2 is a schematic configuration diagram from a mixer to a deburring device according to the present invention.

FIG. 3 is a perspective view of an essential part of a deburring device according to the present invention.

[Explanation of symbols]

1 ... Mixer, 2 ... Press molding device, 3 ... Simple deburring device, 28 ... Dispensing chute, 30 ... Brush member, 3
3 ... Punching metal (perforated plate).

Claims (2)

[Scope of utility model registration request] 1. A deburring device for removing burrs from a work compacted by a molding device, wherein a brush, which is in contact with the upper surface of the work, is provided above a payout chute for paying out the work from the molding device. A deburring device for a work, wherein a portion of the payout chute that contacts the lower surface of the work is configured by a perforated plate such as punching metal. 2. The work deburring device according to claim 1, wherein the brush is arranged so that its vertical position can be adjusted.