JP2006218547A - Manufacturing method for ring-shaped member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a ring-shaped member capable of efficiently grinding a member in a short time with enhancing the durability of a film-like grinding member, or a manufacturing device of the ring-shaped member. <P>SOLUTION: The manufacturing method for a ring-shaped member has the steps of holding a grinding mirror film 21 on the outer peripheral face of a roller 22 and pressing the grinding mirror film 21 against the ring-shaped member W to grind the member, and the central axis of the nearly hand-drum shaped roller 22 is disposed with a predetermined inclination of θ1 with respect to the plane formed by one end face of the ring-shaped member W and also with a predetermined inclination of θ2 with respect to a closed curve in the tangential direction formed by the ring-shaped member W. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ring-shaped member grinding step in a method for manufacturing a ring-shaped member.

  As the prior art 1, there is a conventional polishing method by barrel polishing as a general polishing method. Here, barrel polishing refers to an object to be polished by putting the object to be polished and an abrasive in a container called a barrel and causing relative friction between the object to be polished and the abrasive by rotating the barrel. This is a polishing method for performing surface processing such as deburring, surface polishing, and R attachment. Conventionally, a polishing method using barrel polishing has also been used in surface processing of ring-shaped members.

As prior art 2, there is an invention described in Patent Document 1 as follows. The invention described in Patent Document 1 relates to a curved surface finishing apparatus. FIG. 6 shows an external view of the entire apparatus, and FIG. 7 shows a part of the apparatus. The curved surface finishing apparatus 101 operates as follows. First, the workpiece W is rotated. Then, the airbag 103 is inflated and the polishing film SP is pressed against the curved surface WC of the workpiece W. Thereafter, the polishing film SP together with the holder 102 swings about 1 to 2 mm with respect to the curved surface. While this swinging is being performed, the polishing film SP is continuously supplied by the polishing cloth supply mechanism 110, and the rotating workpiece W is always subjected to finishing processing on the unused portion of the polishing film SP. Yes.
JP 2003-89047 (paragraphs 0046-0053, FIGS. 1 and 2)

  However, when the polishing method by barrel polishing described in the prior art 1 is used for the surface processing of the ring-shaped member, the ring-shaped members are fitted or overlapped during the polishing operation. When taking out the members, it is necessary to take them out while sorting them, which is very laborious. Moreover, in order to realize uniform polishing so as not to cause polishing unevenness, it takes a lot of time to complete the surface processing of the ring-shaped member by barrel polishing.

  In the curved surface finishing apparatus 101 described in the related art 2, the workpiece surface of the workpiece W to be ground is a curved surface WC formed in advance with a single radius of curvature. Then, in order to flexibly follow the shape of the curved surface WC, the processing accuracy of the surface on the curved surface WC is merely adjusted while inflating the airbag 103 and pressing the polishing film SP. Therefore, the shape of the grinding surface of the polishing film SP when the airbag 103 is inflated and pressed against the curved surface WC is not particularly defined. Therefore, it is considered that the method cannot be applied as a technique for finishing the end face of the ring-shaped member having the edges formed at substantially right angles into an R-shaped curved surface by grinding.

Then, this invention aims at the following.
(1) It aims at providing the manufacturing method or manufacturing apparatus which can increase the contact area of a film-form grinding member and a ring-shaped member, and can grind efficiently.
(2) It aims at providing the manufacturing method or manufacturing apparatus which can grind in a short time by grinding the inner peripheral side and outer peripheral side of a ring-shaped member simultaneously.
(3) It aims at providing the manufacturing method or manufacturing apparatus which prevents the cutting | disconnection of a film-form grinding member and the durability of a film-form grinding member improves.

In order to achieve the above object, the present invention has the following features.
(1) The present invention provides a ring-shaped member manufacturing method including a step of holding a film-shaped grinding member on an outer peripheral surface of a roller and pressing the film-shaped grinding member against the ring-shaped member to perform grinding. The central axis of the roller has a predetermined first angle with respect to a plane formed by one end surface of the ring-shaped member, and a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. It has the process of grinding by arrange | positioning.

(2) The present invention is characterized in that in the method for manufacturing a ring-shaped member described in (1), there is a step of grinding the inner peripheral side and the outer peripheral side of the ring-shaped member at the same time.

(3) The present invention is characterized in that, in the method for producing a ring-shaped member described in (1) or (2), the roller is made of an elastic body.

(4) The present invention provides a ring-shaped member manufacturing apparatus in which a film-shaped grinding member is held on the outer peripheral surface of a roller and the film-shaped grinding member is pressed against the ring-shaped member to perform grinding. The central axis is disposed with a predetermined first angle with respect to a plane formed by one end surface of the ring-shaped member and with a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. It is characterized by that.

(5) The present invention is characterized in that in the ring-shaped member manufacturing apparatus described in (4), rollers are arranged on the inner peripheral side and the outer peripheral side of the ring-shaped member.

(6) According to the present invention, in the ring-shaped member manufacturing apparatus described in (4) or (5), the roller is made of an elastic body.

The present invention having such features can obtain the following operations and effects.
(1) The present invention provides a ring-shaped member manufacturing method including a step of holding a film-shaped grinding member on an outer peripheral surface of a roller and pressing the film-shaped grinding member against the ring-shaped member to perform grinding. The central axis of the roller has a predetermined first angle with respect to a plane formed by one end surface of the ring-shaped member, and a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. Since there is a step of grinding by disposing, the R shape can be formed on the end surface of the ring-shaped member by the arc shape of the side surface of the substantially drum-shaped roller, and the contact between the film-shaped grinding member and the ring-shaped member Since the area is increased and the grinding area per unit time is increased, an effect of efficient grinding can be obtained.

(2) Since this invention has the process of grinding the inner peripheral side and outer peripheral side of a ring-shaped member simultaneously in the manufacturing method of the ring-shaped member described in (1), grinding a ring-shaped member in a short time. An effect that can be completed is obtained.

(3) According to the present invention, in the method for manufacturing a ring-shaped member described in (1) or (2), since the roller is made of an elastic body, a part of the reaction force from the ring-shaped member is absorbed by the roller. Since the film-like grinding member is not applied to the film-like grinding member, the film-like grinding member can be prevented from being cut and its durability can be improved.

(4) The present invention provides a ring-shaped member manufacturing apparatus in which a film-shaped grinding member is held on the outer peripheral surface of a roller and the film-shaped grinding member is pressed against the ring-shaped member to perform grinding. The central axis is arranged with a predetermined first angle with respect to a plane formed by one end face of the ring-shaped member and with a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. Therefore, an R shape can be formed on the end surface of the ring-shaped member due to the arc shape of the side surface of the substantially drum-shaped roller, and the contact area between the film-shaped grinding member and the ring-shaped member increases, resulting in a grinding area per unit time. Since it becomes large, the effect that it can grind efficiently is acquired.

(5) According to the present invention, in the ring-shaped member manufacturing apparatus described in (4), since the rollers are arranged on the inner peripheral side and the outer peripheral side of the ring-shaped member, grinding of the ring-shaped member is completed in a short time. The effect that can be obtained.

(6) According to the present invention, in the ring-shaped member manufacturing apparatus described in (4) or (5), since the roller is made of an elastic body, a part of the reaction force from the ring-shaped member is absorbed by the roller. Since the film-like grinding member is not applied to the film-like grinding member, the film-like grinding member can be prevented from being cut and its durability can be improved.

Examples of the present invention will be described below.
FIG. 1 is an external view of an entire manufacturing apparatus that realizes the method for manufacturing a ring-shaped member of the present invention. As shown in FIG. 1, the ring-shaped member manufacturing apparatus 1 of the present invention is roughly divided into a ring-shaped member grinding mechanism 11 and a transport mechanism 12.
FIG. 2 is an enlarged view of the ring-shaped member grinding mechanism 11 in FIG. As shown in FIG. 2, the ring member grinding mechanism 11 includes a grinding mirror film 21, a roller 22, a grinding mirror film roll 23, a grinding mirror film winding motor 24, and a grinding mirror film tension adjusting brake 25. The head vertical drive servomotor 26, the film pressing force control load cell 27, the head horizontal drive servomotor 28, the ball screw 29, and the like. The grinding mirror film 21 is obtained by adhering an abrasive to a film-like member. As the film-like member, for example, a polyester film or the like is used. The grinding mirror film 21 is bundled as a grinding mirror film roll 23 and is gradually held by rotating the roller 22 and the grinding mirror film winding motor 24 while being held on the outer periphery of the roller 22. It will be sent out. At this time, the grinding mirror film 21 is pressed against the ring-shaped member W by a predetermined force by the grinding mirror film tension adjusting brake 25. This predetermined force is managed by a head vertical drive servomotor 26, a film pressing force control load cell 27, a head horizontal drive servomotor 28, a ball screw 29, and the like.

  Here, the roller 22 which is a feature of the present invention will be described. The purpose of the present invention is to perform grinding to form an end surface of the ring-shaped member W into an R shape. Therefore, in order to form the end surface of the ring-shaped member W in an R shape while the grinding mirror film 21 is in contact with the end surface while corresponding to the circular shape of the ring-shaped member W, the side surface of the roller 22 is formed in an arc shape. As an approximately drum shape. The arc-shaped radial dimension on the side surface of the roller 22 is determined by factors such as the radial dimension of the ring-shaped member W and the R-shaped R dimension of the end surface of the ring-shaped member W to be obtained by grinding. Therefore, an example of the diameter of the arc shape on the side surface of the roller 22 determined in this way is shown. When the diameter of the ring-shaped member W is φ100 mm and the R-shaped R dimension at the end face of the ring-shaped member W to be obtained by grinding is 0.2 mm, the arc-shaped diameter on the side surface of the roller 22 is φ800 mm. An example of other dimensions of the roller 22 is also shown. When the width of the grinding mirror film 21 is 40 mm, the width of the roller 22 in the axial direction is 50 mm. Further, the diameter of the end face of the roller 22 is set to φ20 mm.

  The roller 22 is made of an elastic body such as rubber. Thus, by using the roller 22 as an elastic body such as rubber, a part of the reaction force from the ring-shaped member W can be absorbed by the roller 22. Therefore, an excessive force is not applied to the grinding mirror film 21. Therefore, cutting of the grinding mirror film 21 during grinding can be prevented, and its life can be improved. If the hardness of the rubber is too low, the force required for grinding the ring-shaped member W may not be obtained. On the other hand, if the hardness of the rubber is too high, the reaction force from the ring-shaped member W may be reduced. May not absorb. Therefore, in this embodiment, for example, rubber having a hardness in the range of about A70 / S to A80 / S in JIS K 6253 of JIS standard is used.

  On the other hand, as shown in FIG. 1, the ring-shaped member transport mechanism 12 includes a hand 32 integral with an arm 31, a chuck portion 33, a chuck portion 34, and the like. Three hands 32 are configured (32a, 32b, 32c), and two chucks are configured in each chuck portion (33a, 33b, 34a, 34b).

The manufacturing apparatus of the present invention having the above configuration operates as follows.
First, the operation of the ring-shaped member grinding mechanism 11 which is a feature of the present invention will be described. As an enlarged view of the portion that performs the grinding operation of the ring-shaped member grinding mechanism 11, FIG. 3 shows a perspective view and FIG. 4 shows a top view. FIG. 5 is an enlarged view of the periphery of the contact portion T between the ring-shaped member W and the grinding mirror film 21.
First, the ring-shaped member W that is an object to be ground is rotated. Then, the grinding mirror film 21 is pressed against the edge portion of the rotating ring-shaped member W end face with a predetermined force via the roller 22. Then, as shown in FIG. 5, the arc-shaped portion on the side surface of the substantially drum-shaped roller 22 presses against the edge portion of the end surface of the ring-shaped member W. The roller 22 is rotating, and new surfaces of the grinding mirror film 21 are fed out in order.

  Here, the ring-shaped member W is formed in a circumferential shape. Then, the end surface of the ring-shaped member W must be ground into an R shape over the entire circumference. Therefore, when the ring-shaped member W and the roller 22 are ground while being relatively rotated, it is necessary to bring the roller 22 into contact with the end surface of the ring-shaped member W in a curved shape as indicated by T in FIG. Therefore, the roller 22 has a substantially drum shape, and the central axis of the roller 22 has a predetermined angle θ1 with respect to the plane formed by the end surface of the ring-shaped member W, and a predetermined angle with respect to the tangential direction of the ring-shaped member W. An angle θ2 is provided.

  And in order to implement | achieve the curve like the contact part T shown in FIG. 5, the predetermined angles (theta) 1 and (theta) 2 specifically, the ring-shaped member which it is going to obtain by the radial dimension of the ring-shaped member W, and grinding. It is defined by the R dimension at the end face of W and the arc-shaped diameter dimension at the side face of the roller 22. Therefore, in this embodiment, as described above, the diameter of the ring-shaped member W is φ100 mm, the R-size of the end surface of the ring-shaped member W to be obtained by grinding is 0.2 mm, and the arc-shaped diameter of the side surface of the roller 22 is obtained. When the dimension is 800 mm, the angles θ1 and θ2 are 15 °.

  When the predetermined angles θ1 and θ2 are thus provided, as shown in FIG. 5, when the arc-shaped portion on the side surface of the substantially drum-shaped roller 22 presses against the edge portion of the end surface of the ring-shaped member W. Compared with the case where the central axis of the roller 22 is simply made perpendicular to the tangential direction of the circle formed by the ring-shaped member W, the area of the contact portion T can be increased.

  If the area of the contact portion T can be increased in this way, the grinding area per unit time can be increased, and the grinding process can be completed in a short time. In Example 1, the time for completing the grinding process can be 5 seconds. In the case of the barrel polishing method mentioned as the background art, since the time for completing the grinding process is about 50 minutes, the grinding time can be reduced to about 1/600.

  In addition, if the area of the contact portion T can be increased in this way, the surface state can be uniformly adjusted over a wider ground surface. Therefore, when the roller 22 is pressed against the edge portion of the end surface of the ring-shaped member W with a predetermined pressing force, the stress applied to the edge portion is reduced and the grinding amount per round is reduced, but the number of times of grinding is repeated. As a result, unevenness of the grinding surface can be eliminated and the grinding state is improved. Therefore, by continuously moving the contact portion T in the circumferential direction of the ring-shaped member W, the R-shaped grinding state on the end surface of the ring-shaped member W is continuously performed in the entire circumferential direction of the ring-shaped member W. A smoother finish without unevenness.

  In particular, in Example 1, since the ring-shaped member W can be rotated a total of eight times within 5 seconds until the grinding process is completed, the grinding mirror film 21 is uniformly distributed in the circumferential direction of the ring-shaped member W. Grinding by is perfect. Therefore, the edge portion of the end surface of the ring-shaped member W can be ground without unevenness in the circumferential direction of the ring-shaped member W.

Next, the operation of the entire ring-shaped member manufacturing apparatus 1 including the ring-shaped member transport mechanism 12 will be described with reference to FIG.
In grinding the ring-shaped member W, first, the ring-shaped member W is gripped by the hand 32a. Then, after moving the arm 31, the hand 32a is lowered to the position of the chuck 33a, and the ring-shaped member W is held by the chuck 33a. After that, the chuck portion 33 rotates around the drive shaft to exchange the positions of the chuck 33a and the chuck 33b. Then, the first end face side of the ring-shaped member W held by the chuck 33 a is ground by the grinding mechanism 11. During this grinding operation, the chuck 33b holds the ring-shaped member W to be ground next by the same action as described above. When the grinding of the ring-shaped member W held by the chuck 33a is completed, the chuck portion 33 rotates around the drive shaft, and the positions of the chuck 33a and the chuck 33b are replaced again to return to the original positions. Thereafter, the ring-shaped member W is gripped by the hand 32b. Then, this time, the hand 32b rotates about the drive shaft, and the vertical direction of the ring-shaped member W is switched. Then, after moving the arm 31, the hand 32b is lowered to the position of the chuck 34a, and the ring-shaped member W is held by the chuck 34a. Thereafter, the chuck portion 34 rotates about the drive shaft, and the positions of the chuck 34a and the chuck 34b are switched. Then, the grinding of the second end face side of the ring-shaped member W held by the chuck 34a by the grinding mechanism 11 is performed. When the grinding of the ring-shaped member W held by the chuck 34a is completed, the chuck portion 34 rotates around the drive shaft, and the positions of the chuck 34a and the chuck 34b are replaced again to return to the original positions. Thereafter, the ring-shaped member W is grasped by the hand 32c, and the ring-shaped member W that has been ground is taken out. Thereby, the grinding process of the ring-shaped member W is completed. Thus, the both end surfaces of the ring-shaped member W can be ground by a series of grinding operations by the ring-shaped member manufacturing apparatus 1.

According to the embodiment as described above, the following effects can be obtained.
(1) In the manufacturing method of a ring-shaped member, the present invention includes a step in which the grinding mirror film 21 is held on the outer peripheral surface of the roller 22 and the grinding mirror film 21 is pressed against the ring-shaped member W for grinding. The central axis of the substantially drum-shaped roller 22 has a predetermined angle θ1 with respect to the plane formed by one end surface of the ring-shaped member W, and the predetermined axis with respect to the tangential direction of the closed curve formed by the ring-shaped member W Since there is a step of grinding by arranging with an angle θ2, the R shape can be formed on the end surface of the ring-shaped member W by the circular arc shape of the side surface of the substantially drum-shaped roller 22, and the grinding mirror Since the area of the contact portion T between the film 21 and the ring-shaped member W is increased and the grinding area per unit time is increased, an effect of efficient grinding can be obtained.

(2) Since this invention has the process of grinding the inner peripheral side and outer peripheral side of the ring-shaped member W simultaneously in the manufacturing method of the ring-shaped member described in (1), The effect that grinding can be completed is acquired.

(3) According to the present invention, in the method for manufacturing a ring-shaped member described in (1) or (2), since the roller 22 is made of an elastic body, a part of the reaction force from the ring-shaped member W is a roller. Since it is absorbed by 22 and does not hit the mirror film 21 for grinding, the grinding mirror film 21 can be prevented from being cut and its durability can be improved.

(4) The present invention provides a ring-shaped member manufacturing apparatus in which a grinding mirror film 21 is held on the outer peripheral surface of a roller 22 and grinding is performed by pressing the grinding mirror film 21 against the ring-shaped member W. The central axis of the roller 22 having a shape has a predetermined angle θ1 with respect to a plane formed by one end surface of the ring-shaped member W, and a predetermined angle θ2 with respect to the tangential direction of the closed curve formed by the ring-shaped member W. Since it is disposed, an R shape can be formed on the end surface of the ring-shaped member W by the circular arc shape of the side surface of the substantially drum-shaped roller 22, and the contact portion T between the grinding mirror film 21 and the ring-shaped member W can be formed. This increases the area and increases the grinding area per unit time, so that the effect of efficient grinding can be obtained.

(5) According to the present invention, in the ring-shaped member manufacturing apparatus described in (4), since the rollers 22 are arranged on the inner peripheral side and the outer peripheral side of the ring-shaped member W, the ring-shaped member W can be ground in a short time. An effect that can be completed is obtained.

(6) According to the present invention, in the ring-shaped member manufacturing apparatus described in (4) or (5), since the roller 22 is made of an elastic body, a part of the reaction force from the ring-shaped member W is a roller. Since it is absorbed by 22 and does not hit the mirror film 21 for grinding, the grinding mirror film 21 can be prevented from being cut and its durability can be improved.

In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning.

The present invention having the above-described features is a technique that can be applied to the manufacture of a CVT belt for automobiles.
Here, the necessity of the grinding work in the production of the CVT belt will be described. First, the CVT belt is manufactured by rolling an iron ring-shaped member. The ring-shaped member before rolling is taken out by cutting a long iron pipe with a roll cutter. Since the cutting by the roll cutter is performed by applying a shearing force, burrs are generated at the cut portion of the extracted ring-shaped member. Therefore, it is necessary to remove this burr by grinding. Further, the CVT belt can be attached to the element, and it is necessary to form R shapes at both ends of the CVT belt so as not to damage the element. Accordingly, it is necessary to form R shapes on both end faces by grinding from the stage of the ring-shaped member before rolling.
Therefore, the above-described necessity can be satisfied by applying the grinding process, which is a feature of the present invention, to this ring-shaped member.

It is an external view of the whole manufacturing apparatus which implement | achieves the manufacturing method of the ring-shaped member of this invention. It is an enlarged view of the grinding mechanism of the ring-shaped member in FIG. It is an enlarged view (perspective view) of the part which performs grinding operation in the grinding mechanism of a ring-shaped member. It is an enlarged view (top view) of the part which performs grinding operation in the grinding mechanism of a ring-shaped member. It is an enlarged view of the periphery of the contact part of a ring-shaped member and a mirror film for grinding. It is an external view of the whole curved surface finishing processing apparatus of patent document 1. FIG. It is a figure which shows a part of curved surface finishing processing apparatus of patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ring-shaped member manufacturing apparatus 11 Grinding mechanism 12 Conveying mechanism 21 Grinding mirror film 22 Roller 23 Grinding mirror film roll 24 Grinding mirror film take-up motor 25 Grinding mirror film tension adjusting brake 26 Head vertical drive servo Motor 27 Load cell for controlling film pressing force 28 Servo motor for head horizontal drive 29 Ball screw 31 Arm 32 Hand 33 Chuck part 34 Chuck part

Claims (6)

In the manufacturing method of the ring-shaped member having the step of holding the film-shaped grinding member on the outer peripheral surface of the roller and performing grinding by pressing the film-shaped grinding member against the ring-shaped member,
The central axis of the substantially drum-shaped roller has a predetermined first angle with respect to a plane formed by one end surface of the ring-shaped member, and a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. A method for manufacturing a ring-shaped member, comprising a step of grinding by disposing them at an angle. In the manufacturing method of the ring-shaped member according to claim 1,
The manufacturing method of the ring-shaped member characterized by having the process of grinding the inner peripheral side and outer peripheral side of a ring-shaped member simultaneously. In the manufacturing method of the ring-shaped member according to claim 1 or 2,
The method for manufacturing a ring-shaped member, wherein the roller is made of an elastic body. In the ring-shaped member manufacturing apparatus in which the film-shaped grinding member is held on the outer peripheral surface of the roller, and the film-shaped grinding member is pressed against the ring-shaped member for grinding.
The central axis of the substantially drum-shaped roller has a predetermined first angle with respect to a plane formed by one end surface of the ring-shaped member, and a predetermined second angle with respect to the tangential direction of the closed curve formed by the ring-shaped member. An apparatus for manufacturing a ring-shaped member, which is arranged with an angle. In the manufacturing apparatus of the ring-shaped member according to claim 4,
An apparatus for manufacturing a ring-shaped member, wherein the rollers are arranged on an inner peripheral side and an outer peripheral side of the ring-shaped member. In the manufacturing apparatus of the ring-shaped member according to claim 4 or 5,
The apparatus for manufacturing a ring-shaped member, wherein the roller is made of an elastic body.

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