JP5200421B2 - Film wrap processing method - Google Patents

Description

The present invention relates to a relatively incompressible abrasive-coated film, and a shoe having a pair of relatively rigid opposing concave surfaces that press the abrasive-coated surface of the film into contact with the workpiece surface of a shaft including a crankshaft. An assembly, a shoe holder for holding the shoe assembly, and a pair of outer film guides and inner film guides respectively supported by the shoe holders, the film being guided by one of the outer film guides to be processed It passes between one side of the workpiece surface and one of the opposing concave surfaces of the shoe assembly and is guided by the inner film guide and passes between the other side of the workpiece surface and the other concave surface of the shoe assembly. The present invention relates to a film wrap processing method adapted to be guided by the other of the direction film guides.

Patent Document 1 discloses a conventional pair of relatively rigid shoe assemblies having opposed concave surfaces, a shoe holder for holding the shoe assembly, a pair of outer film guides and inner portions supported by the shoe holder, respectively. Having a film guide, the film being guided by one of the outer film guides, passing between one side of the workpiece surface and one of the opposing concave surfaces of the shoe assembly, and guided by the inner film guide to the workpiece Disclosed is a film wrap device configured to pass between the other side of the surface and the other of the opposing concave surfaces of the shoe assembly and guided to the other of the outer film guides. Further, a conventional relatively incompressible abrasive-coated film, a shoe assembly having a concave surface for contacting and pressing the abrasive-coated surface of the film against the surface of a workpiece including a crankshaft, and the shoe assembly. in the film wrap device that having a shoe holder for holding, that cuts in the film is, for example, there is disclosed in Figure 10 of Patent Document 2, the film was placed in the incision, the pin of the crankshaft It is used together with flexible inserts on both sides of a relatively rigid shoe assembly to finish the side wall portion of the bearing, and is not applicable to workpieces having different processing widths. It cannot be applied to the film wrap apparatus having the structure.
JP 2004-243443 A Japanese Patent Publication No. 05-9225

However, in the film wrap apparatus disclosed in Patent Document 1, or in the film wrap apparatus disclosed in Patent Document 2 , with respect to changes in the processing width when the workpiece is changed, It was very difficult to replace the film guide, and it took time to replace it.

An object of the present invention is to provide a relatively incompressible abrasive-coated film and a pair of relatively rigid opposing concave surfaces that press the abrasive-coated surface of the film into contact with the workpiece surface of a shaft including a crankshaft. A shoe assembly that holds the shoe assembly, and a pair of outer film guides and inner film guides that are respectively supported by the shoe holders, and the film is guided to one of the outer film guides. It passes between one side of the workpiece surface and one of the opposing concave surfaces of the shoe assembly and is guided by the inner film guide and passes between the other side of the workpiece surface and the other concave surface of the shoe assembly. in the film lapping method is to be guided to the other of the outer side film guide, to changes in the working width when the workpiece is changed, the abrasive coating Huy The arm and the film guide can be processed without having to replace, it is to provide a film lapping method that does not take a long time without replacement.

Thus the present invention, the abrasive coating film, shoe assembly having a concave surface of the pair of pairs direction to press into contact with the workpiece surface of the shaft comprising a crankshaft abrasive coating surface of the film, said shoe assembly And a pair of outer film guides and inner film guides respectively supported by the shoe holders, the film being guided by one of the outer film guides and one side of the workpiece surface and the shoe Guided by one of the opposing concave surfaces of the assembly to the inner film guide and guided between the other side of the workpiece surface and the other opposing concave surface of the shoe assembly to the other of the outer film guides In a film wrapping apparatus configured to be used, an abrasive-coated film having a first processing width is used for a workpiece having a second processing width that is narrower than a workpiece having a first processing width. Kill manner, first and respectively fixed in the width direction of each edge of the abrasive coating film of the second cut without half straight and the width of a length corresponding to the difference between the working width of the first working width The guide widths of the pair of outer film guides and inner film guides are the same as the first processing width, and the width between the first and second processing widths. The outer periphery of two or more types of workpieces having different thicknesses is processed without changing the abrasive-coated film having the first processing width and the pair of outer film guides and inner film guides. Lapping method. By solving this problem, the problems of the conventional methods described above were solved.

With this configuration, in the present invention, the first and the first processing width of the abrasive-coated film can be used for the workpiece having the second processing width that is narrower than the workpiece having the first processing width. A straight line that is half the length corresponding to the difference between the two processing widths and has no width is provided at regular intervals in the width direction of each edge of the abrasive coating film having the first processing width. In addition, since the guide width of the pair of outer film guide and inner film guide is the same as the first processing width, the narrow second abrasive coating film having the first processing width is used. when machining a workpiece processing width, when the workpiece abrasive coated film width second processing width of the narrow first processing width are in contact, the switching Re eye each edge of the film Spread and escape to the contact area without damaging the workpiece of the second processing width Further, since the abrasive covering film having the wide first processing width is guided by the pair of outer film guide and inner film guide having the same guide width as the first processing width, the abrasive having the first processing width is provided. High-precision machining can be performed without shifting the coating film in the axial direction, and it is not necessary to replace the abrasive coating film and film guide in response to changes in the machining width when the workpiece is changed. The film wrap processing method which does not have time and does not take time is provided. Needless to say, a workpiece having one or a plurality of processing widths between the first and second processing widths can be similarly processed with the abrasive-coated film having the first processing width.

An example of the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1A is a front view of a main part of an abrasive-coated film having a first processing width in a film wrap processing method according to an embodiment of the present invention, and FIG. 1B is a diagram showing a film having a first processing width in FIG. Sectional drawing which shows the state of the to-be-processed object 20 and a film when processing the to-be-processed object 20 of the 1st process width L1 using, (c) is a shoe assembly along CC line of (b) Sectional drawing which shows the state of a shoe holder, a pair of outer film guides, an inner film guide, a workpiece 20 and a film, (d) is a width using the film of the first processing width L1 of (a). Sectional drawing which shows the state of a to-be-processed object and a film when processing the to-be-processed object 21 of the 2nd narrow processing width L2, (e) is a shoe assembly and shoes along the EE line of (d) Holder, pair of outer film guides, one inner film guide, workpiece 21 and film A cross sectional view illustrating a state of Lum respectively.

As shown in FIG. 1, the film lapping method according to the embodiment of the present invention includes a relatively incompressible abrasive-coated film 1 and an abrasive-coated surface 1a of the abrasive-coated film 1 covered with a shaft including a crankshaft. Shoe assembly 5, 4 having shoe pair 4, 4 shoe assembly 4, 4 and shoe having a pair of relatively rigid opposing concave surfaces 3a, 3b that are brought into contact with and pressed against surfaces 20a, 21a. A pair of outer film guides 6a and 6b supported by the holders 5 and 5 and one of the shoe holders 5 and 5 (the other or both of the shoe holders 5 and 5 or a film wrap device body not shown) a support which may be provided) inner film guide 6c, film 1 is guided to one 6a of the outer film guide the workpiece 2 0 surface 20a, 20b One side of the workpiece and one of the opposing concave surfaces 3a and 3b of the shoe assembly are guided by the inner film guide 6c and the other side of the workpieces 20 and 21 and the other sides of the surfaces 20a and 21a are opposed to the shoe assemblies 4 and 4. In the film lapping method that passes between the other concave surfaces 3a and 3b and is guided by the other film guide 6b, the abrasive-coated film 1 having the first processing width L1 is changed to the first processing width. Length corresponding to the difference (L1−L2) between the first and second machining widths L1 and L2 so that it can be used for the workpiece 21 having the second machining width L2 narrower than the workpiece 20 of L1. half (L1-L2) / 2 switching Re eye 7a, 7b of the first respective edges 8a of the film 1 of processing width L1, and respectively placed at regular intervals in 8b, and a pair of outer film guide 6a, 6b and one inner film guide 6c Id width L1 is one that is the same as the first processing width L1. Reference numerals 20b and 21b denote wall surfaces of the workpieces 20 and 21, respectively. The workpieces 20 and 21 are rotatably supported by a head stock and a tail stock (not shown), and the film 1 having the first processing width L1 has a new film only once after one film lapping. It is designed to be unwound.

With this configuration, the film wrap processing method according to the embodiment of the present invention converts the abrasive-coated film having the first processing width into the workpiece having the second processing width that is narrower than the workpiece having the first processing width. In order to be able to be used, a straight line having a half length corresponding to the difference between the first and second processing widths and having no width is formed in the width direction of each edge of the abrasive-coated film having the first processing width L1. Since the guide widths of the pair of outer film guides and inner film guides are the same as the first processing width, the abrasive material having a wide first processing width is provided. When a workpiece having a narrow second processing width is processed by the coating film, the film 1 is formed when the abrasive coating film having the first processing width comes into contact with the workpiece having the narrow second processing width. each edge 8a of the switching Re eye 7a of 8b, 7b is widened with respect to the contact portion By escaping, the workpiece having the second processing width is not damaged, and the abrasive coating film having the wide first processing width has a pair of outer film guides having the same guide width as the first processing width and one piece. Since the guide film is guided by the inner film guide, the abrasive-coated film with the first processing width can be processed with high accuracy without shifting in the axial direction, and the change in the processing width when the workpiece is changed On the other hand, it is not necessary to replace the abrasive coating film and the film guide, and there is provided a film lapping method that does not require replacement and takes time. Needless to say, a workpiece having one or a plurality of processing widths between the first and second processing widths can be similarly processed with the abrasive-coated film having the first processing width.

(A) is the principal part front view of the abrasive | polishing material coating film of the 1st process width of the film wrap processing method of embodiment of this invention, (b) uses the film of the 1st process width of (a). Sectional drawing which shows the state of the to-be-processed object 20 and a film when processing the to-be-processed object 20 of the 1st process width L1, and (c) is a shoe assembly and shoes along CC line of (b) Sectional drawing which shows the state of a holder, a pair of outward film guide, an inward film guide, the to-be-processed object 20, and a film, (d) is a width | variety using the film of the 1st process width L1 of (a). Sectional drawing which shows the state of the to-be-processed object and film when processing the to-be-processed object 21 of the 2nd process width L2, (e) is a shoe assembly along the EE line of (d), a shoe holder, A pair of outer film guides, one inner film guide, work piece 21 and film It shows a cross-sectional view showing a state, respectively.

1: Abrasive coating film, 1a: Abrasive coating surface of film, 3a, 3b: concave surface, 4: Shoe assembly 5: Shoe holder, 6a, 6b: Outer film guide, 6c: Inner film guide 7a, 7b : Cut , 8a, 8b: Edge of film, 20: Workpiece with first machining width L1 21: Workpiece with second machining width L2, 20a, 21a: Surface L1: First workpiece Machining width, L2: second machining width

Claims (1)

Abrasive coating film, shoe assembly having a concave surface of the pair of pairs direction to press into contact with the workpiece surface of the shaft comprising a crankshaft abrasive coating surface of the film, and the shoe holder for holding the shoe assembly A pair of outer film guides and inner film guides respectively supported by the shoe holder, the film being guided by one of the outer film guides and a concave surface facing one side of the workpiece surface and the shoe assembly Between the other side of the workpiece surface and the other of the opposing concave surfaces of the shoe assembly and guided to the other of the outer film guides. In the film wrapping apparatus, the first coated width abrasive-coated film can be used for a workpiece having a second machining width that is narrower than a workpiece having a first machining width. It has been placed in the respective predetermined intervals in the width direction of each edge of the abrasive coating film of the length of the half of the linear and zero width slit first working width corresponding to the difference between the second working width, The guide widths of the pair of outer film guides and inner film guides are the same as the first processing width, and two or more kinds of coverings having different widths between the first and second processing widths. A film wrap processing method, wherein an outer periphery of a workpiece is processed without exchanging the abrasive-coated film having the first processing width and the pair of outer film guides and inner film guides.

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