JPS59110548A - Finishing device - Google Patents

Abstract

PURPOSE:To completely and easily preform the deburring of the processed surface of a work and processing for the rough parts of the processed surface by turning a cushion roller obtained by arranging abrasive grains on the peripheral surface of each soft material with a faster peripheral speed than that of a workpiece conveying speed and allowing them to make contact with each other. CONSTITUTION:In a finishing device for the removal of secondary burrs produced on the processed surface among burrs yielded upon press-working an electromagnetic iron plate used as an iron core for an electric instrument and the processing for a rough part of the processed surface of the workpiece, when a punched piece 11 approaches the positions of cushion rollers 14a, 14b, abrasive grains 22 on the peripheral surface of the cushion material 21 make contact with the processed surface 12 of the peripheral edge of the punched piece 11. And, since the peripheral speeds of the cushion rollers 14a, 14b are set faster than the conveying speed of the punched piece 11, so that the grinding of the processed surface 12 is performed by the abrasive grains 22, thus enabling the removal of the secondary burrs and processing of the rough part to be carried out perfectly and easily.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to a finishing device to prevent the occurrence of damage caused when processing electromagnetic steel sheet metal, which is used as the core of electrical equipment such as the stator core of rotating electric machines. The present invention relates to a finishing device suitable for removing secondary burrs generated on a machined surface and processing roughened parts of the machined surface.

[Technical background of the invention]

In general, when a magnetized steel plate, which has been used for a long time as the core of electric equipment such as the stator core of a rotating electric machine, is processed into plains, burrs 2 are formed on the processed surface 2 of the punched plate 1, as shown in Figs. 1 and 2. This is a problem that cannot be avoided with the current plain processing technology.

By the way, when a punched board 1 with such burrs 3 is used to stack an iron core into a product, the burrs 3 break during operation, resulting in II+.
If 2 falls, it will cause narrow passages and loosen the iron core, which will have a big impact on the space. Therefore, it is necessary to completely remove the burr 3 of the blank 1.

Conventionally, the method for removing this burr 3 is as shown in Figs. 3 and 4. A billy roller 5 for compaction is installed opposite to 4, and a billy roller 5 is placed between these rollers.
A method has been proposed in which the blank 1 is completely passed through and the paris 3 is removed without being subjected to rolling pressure.

[Good points about background technology]

However, with this method, as shown in FIG. 5, the burr 3 may remain as a secondary burr 6 on the machined surface 2 of the punched board 1, and the rough part 7 of the machined surface 2 may be processed. There are drawbacks.

Therefore, in some cases, after stacking the blanks 1, the removal of the secondary burrs 6 and the processing of the rough parts 7 are done manually using a base file or a wire brush, but this method can remove them. There is a limit to the range, and it is not easy to produce, and the disadvantage is that the yield rate and finish quality are limited.

[Purpose of the invention]

The present invention has been developed in consideration of the current situation, and it is possible to completely and easily remove burrs from the machined surface of a processed product obtained by various processes such as plain processing, and process rough parts of the machined surface. Providing a finishing v#L that is possible? purpose.

[Summary of the invention]

The present invention uses cushion rollers, which are constructed by arranging a large number of soft materials radially around the outer periphery of a rotating shaft, and abrasive grains are placed on the curved surface of each soft material, and this roller is used to convey processed products. The main feature is that the rotating contact is carried out at a circumferential speed higher than the machine speed to perform deburring of the workpiece and machining of rough parts on the workpiece surface.

[Embodiments of the invention]

The present invention will be explained below with reference to all the drawings.

@Figure 6 shows an example of the finishing device according to the present invention.
In the figure, 1] indicates a punched board, and this punched board 11 is conveyed at a fast speed by pinch rollers L8a and TGO, which are paired vertically and rotate in mutually opposite directions, and are indicated in the conveying direction. It has become so.

Moreover, between the two adjacent pairs of pinch rollers 18a and 18b, as shown in FIG. 6 and FIG. The rollers 14t) are arranged respectively, and both rollers 14a form a pair.

15a, 14tl, 15t) rotate in opposite directions, and both cushion rollers 14a, 14b also rotate in the opposite direction, and both cushion rollers 14a
, 14. The 1st output of D is also set higher than the 1st general feed speed of the above-mentioned punching 1].

Both the cushion rollers 14a, 14+)Fi, as shown in FIG. 9, the outer surface of each cushion material 2j excluding the tip surface, that is, the surface 2] aK is the grain 22 for grinding.
is closely observed by Seishinso-ji Temple. 11ζ Said rotation @2
0 and the proximal end of each cushion material 2, a spring 23 is interposed between the spring 23 and the base end of each cushion material 2, as shown in FIG. Cutting board 1
] When it comes into contact with the rotating shaft 20, the VC escapes in the pole direction and is designed to prevent the parts of the punched plate 11 other than the machined surface 12 from being perturbed.

Next, the effect will be explained.

The punched board 11 is subjected to the conventional deburring process shown in FIGS. 3 and 4, which will be described later in the Blaine process. Therefore, the machined surface 12 of the punched sheet 1] has secondary cracks and rough areas produced by the same method as the punched sheet 1 shown in FIG.

When such a punched plate 11 is loaded with a specified load 1 to the rolling pressure rollers 15a and 15b and passed between the rolling pressure rollers 15a and 15o and the cushion rollers 14a and 14b, the result shown in Figures 6 and 7 is obtained. Booyo V (cutting board 11 is cushion roller 1
4a and 14b.

That is, the punched board 11 is connected to the cushion rollers 14a, 140.
When it leans to the left at position 1, as shown in FIG. 8, the grain 22 on the side facing the cushioning material 20 is in contact with the machining gap 12 of the circumferential line of the punched plate 11. Since the peripheral speed of the cushion rollers 14a and 14b is set faster than the conveyance speed of the punched board 11,
4+)f grinding of the machined surface 12 is performed using the abrasive grains 22 to remove secondary burrs and process rough areas.

When the punched board 11 is further drawn in, the pressure is applied to the punched board 11 by the rolling pressure rollers 15a and 15b, so the cushion opening 2] in contact with the punched board Oi1] is affected by that pressure. The rotating shaft 201 resists the biasing force of the spring 23.
Pushed down to N+1. This foreshadowing is shown in FIGS. 6 and 7. 1-The blanking board 11 is the cushion roller 14a.

141) Kl'& ingrown garlic. By the way, at this time, since the llJ abrasive grains 22 are not arranged at the tip l of the cushion material 2, the parts other than the machining groove 12 of the punched board 11 are not ground by ω.

Then, the punched plate 1] is ground by the cushion rollers 14a, 14b0) ore grains 22 to remove the secondary flakes and bright parts of the processed product 12 to the original metal.

In addition, 4 center h - In the example, we will explain the case where it is applied to the finishing of pressed products, and 1ζ is also applicable to the finishing of pressed products. It is possible to remove not only the processing of foreign matter adhering to the surface of the processed product at the same time. Finishing can also be done on the same line.

[Efficacy of invention]

As explained above, 4. The invention uses cushion rollers in which a large number of soft materials are arranged radially around the outer periphery of a rotary shaft, and abrasive grains are placed on each surface of each soft material. Since the rotational contact is made at a faster circumferential speed, finishing operations such as removing secondary flakes and machining rough areas, which were conventionally performed manually, can be carried out efficiently and efficiently. This dismay,'y1
In fact, if the porcelain plane plate used as the iron core of the equipment is applied to the Brenes sword U craft, short circuit, iron core oxidation, and the conventional 4 to 5 series of Koikaji of Zhanwa - Cui The ability to effectively prevent malfunctions and greatly improve product reliability is the key.

[Brief explanation of the drawing]

Figure 1 shows the punched plate used for the stator core, 'rA.
Figure 2 is an explanatory diagram showing the state of deburring that occurs during processing of the punched board, Figure 3 is an explanatory diagram showing the conventional deburring method, Figure 4 is an M-N shade diagram in Figure 3, Fig. 5 is an explanatory diagram showing the shape of the machined surface of the punched plate by the conventional method, Fig. 6 is an overall diagram showing a failed embodiment of the present invention, and Fig. 7 is the Figure 8 is an enlarged view showing details of the Vc cushion roller of the present invention. 1]...Blanking, 12...Processing surface, 14a, 141)
... Cushion roller, 15a, 151) ... Compaction roller, 20 ... Rotating shaft, 21 ... Cushion material,
21a...Surface, 22...Abrasive grain, 23...Nupling 7 Applicant's agent Kiyoshi Inomata Figure 6

Claims (1)

[Scope of Claims] 1) A large number of soft materials are arranged radially around the outer cylinder of the rotating shaft, and abrasive grains are arranged on the back and surface of each soft material to form the entire cushion roller, and the cushion roller is Transport speed of processed products
) A finishing device that is characterized by deburring workpieces and machining rough areas on machined surfaces through rotating contact at high circumferential speeds. 2) A nubring is interposed between the base end of each soft material and the rotating shaft, allowing the soft material to escape in the radial direction toward the rotating shaft side without contact with the processed product. A finishing device according to claim 1.