TW201729936A - Workpiece machining method, polishing-machine brush, and tool holder - Google Patents

Abstract

The present invention addresses the problem of providing a machining method capable of efficiently performing deburring and polishing of a workpiece, and extending the life of a brush to be used in a machine tool that does not have power for directly rotating a tool and that can machine the workpiece by bringing the tool and the workpiece into contact with each other while moving the same relative to each other. The present invention relates to a machining method with which, in a machine tool that does not have power for rotating a tool, a brush-like grinding stone and a workpiece are moved relative to each other while bringing the brush-like grinding stone and the workpiece into contact with each other, thereby rotating the brush-like grinding stone and thus machining the workpiece.

Description

Method for processing workpiece and brush for grinding machine and tool holder using same

In the present invention, the brush-like grindstone is rotated while the force generated by the relative movement of the grindstone and the workpiece is used as a driving force to perform deburring, polishing, or the like of the workpiece. A method of processing a workpiece, a brush for a grinder using the same, and a tool holder.

One of the power transmission mechanisms in the working machine such as a lathe or a grinding machine is known as a cooker (for example, Patent Document 1). This is because the rotating object and the object to be rotated are connected and fixed by the cooker, and the driving force of the rotating object is transmitted to the object to be rotated.

The lathe is a work machine that performs cutting, grinding, and deburring by rotating a workpiece (hereinafter, referred to as a "workpiece") and abutting the tool. In lathe machining, the tool is fixed to the tool grip and does not rotate. Therefore, in order to prevent the tool from rotating the tool due to frictional heat melting, a rotary turning tool is known (for example, Patent Document 2). This is a technique in which the tool is rotated by transmitting the rotational driving force of the workpiece to the tool by the frictional resistance to dissipate the tool.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2009-274166

[Patent Document 2] Japanese Patent Laid-Open No. Hei 10-315010

In the lathe machining by the NC control, the workpiece is moved in a fixed position, and the position of the tool having the turning tool for cutting is moved in contact with the workpiece. The workpiece is cut into a prescribed shape. After the lathe processing, in the process of deburring, the tool for polishing with a deburring polishing tool can be NC controlled instead of the tool for cutting, and the polishing brush and the polishing tool can be rotated while rotating the workpiece. The workpiece is contacted and deburred. However, in the case of a work machine such as a lathe that does not have the power to rotate the tool, the brush is in contact with the workpiece to be rotated, and since the same portion of the brush is continuously in contact with the workpiece, it has deburring and grinding. The effect is not sufficient. Moreover, only a part of the brush is extremely worn, and the life of the brush is shortened.

The present invention has been made in view of the above problems. In other words, an object of the present invention is to provide a processing method for processing a workpiece that can be processed by moving a tool and a workpiece while moving relative to each other without causing the tool to directly rotate. Depilation The thorn and the grinding are carried out efficiently, and the service life of the brush can be extended.

The present invention relates to a processing method for processing a workpiece to a working machine that does not have a power for rotating the tool, and the brush-like grindstone and the workpiece are brought into contact with each other, and the brush-like grinding is performed. The relative movement of the stone and the workpiece causes the brush-like grindstone to rotate.

Further, the present invention is a portion which is a front end surface of the brush-like grindstone, a portion where the driving force is transmitted by contact with the workpiece, and a portion where the deburring action occurs by contact with the end edge portion of the workpiece, It is better to be different.

The present invention is further a relative motion and is preferably a movement of the workpiece.

The present invention is further a movement of the workpiece, and is preferably a rotary motion.

According to the present invention, the brush-like grindstone is brought into contact with the workpiece from the end surface of the workpiece perpendicularly intersecting the rotation axis of the workpiece, and the rub-like grind is rubbed in the same direction as the direction of rotation of the workpiece. Stone rotation is preferred.

According to the present invention, the brush-like grindstone is brought into contact with the workpiece from the end surface of the workpiece perpendicularly intersecting the rotation axis of the workpiece, and the brush-like grinding is performed in a direction opposite to the rotation direction of the workpiece. Stone rotation is preferred.

The invention further passes the front end face of the brush-like grindstone In the case where the straight line parallel to the direction of the force received by the workpiece by the brush-shaped grindstone is the axis of symmetry, the contact area with the workpiece in the grindstone is In a non-linear symmetry manner, it is preferred to contact the brush-like grindstone with the workpiece.

The present invention is further a movement of the workpiece, which is preferably a linear motion.

The invention is further relative motion, and is preferably a revolving motion of the brush-like grindstone.

The present invention is further a relative motion, and is preferably a linear motion of a brush-like grindstone.

The polishing brush for a polishing machine according to the present invention includes a brush-shaped grindstone having a holder for holding a linear coffin and the linear coffin, and a brush-like shape by supporting the rear end side of the holder The rotating grip portion that the grindstone holds in a rotatable state and the rotating grip portion are fixed to the fixing jig for the working machine.

The tool holder of the present invention includes a rotary grip portion that holds the tool in a rotatable state, and a fixing jig that fixes the rotary grip portion to the work machine, and the fixing jig includes a shaft position adjusting portion and is fixed In the fixed portion of the machine tool, the rotation gripping portion is coupled to the shaft position adjusting portion, and the shaft position adjusting portion is coupled to the fixed portion by the transmission coupling portion, and the shaft position adjusting portion is rotatable and movable by using the coupling portion as an axis. The shaft position adjusting portion adjusts the position of the rotating shaft of the tool that is in contact with the workpiece.

According to the processing method of the present invention, the force generated by the relative movement of the workpiece and the brush-like grindstone is used as the driving force to rotate the brush-like grindstone while processing the workpiece, and the rubbing-like grinding is performed. The contact point between the stone and the workpiece is not necessarily obtained, and the effect of deburring and grinding can be sufficiently obtained. Moreover, it is possible to prevent only a part of the brush from being extremely worn, which can extend the life of the brush.

1‧‧‧Brushing grindstone

2‧‧‧Wired coffin

3‧‧‧ bracket

4‧‧‧ inserted through hole

5‧‧‧ Support shaft

6‧‧‧The Ministry of Control

7‧‧‧Rotary grip

8‧‧‧Fixed tools

9‧‧‧Axis position adjustment unit

10‧‧‧Fixed Department

11‧‧‧Tool bracket

12‧‧‧ Grinding machine

13‧‧‧Shape rotating mechanism

14‧‧‧Axis

15‧‧‧Connecting Department

16‧‧‧Ball screw direct acting unit

17‧‧‧Servo motor

18‧‧‧Sliding block

20‧‧‧Processed objects

20a‧‧‧End face of workpiece

20b‧‧‧Side of the workpiece

21‧‧‧Tools Maintenance Department (Working Machinery)

22‧‧‧Processed objects

Fig. 1 is a perspective view of a grinding brush for a grinder according to an embodiment of the present invention.

[Fig. 2] (a) and (b) are side views of a polishing machine for a polishing machine according to an embodiment of the present invention and a polishing brush for a polishing machine as seen from the opening side of the holder.

[Fig. 3] A cross-sectional view showing a state in which Fig. 2(b) is cut by a line of X-X.

Fig. 4 is a perspective view of a grinding brush for a grinder according to an embodiment of the present invention.

[Fig. 5] A perspective view of a polishing machine according to an embodiment of the present invention when viewed from the back side.

[Fig. 6] A schematic view showing the force that the brush-like grindstone 1 receives from the workpiece 20.

[Fig. 7] A schematic view showing the amount of cut.

[Fig. 8] A schematic view showing a portion where the deburring action occurs in the brush-like grindstone 1, and a portion where the driving force is transmitted from the workpiece.

[Fig. 9] shows the rotation of the brush-like grindstone 1 toward the workpiece 20 A schematic diagram of the magnitude of the force of the rotation in the same direction and the distribution of the magnitude of the force rotating in the opposite direction to the direction of rotation of the workpiece 20.

[Fig. 10] A schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[Fig. 11] A schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[12] Fig. 12 is a schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[Fig. 13] A schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[Fig. 14] A schematic view showing an example of a method of processing a workpiece in the brush-like grindstone 1.

[Fig. 15] A schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[Fig. 16] A schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

[17] Fig. 17 is a schematic view showing an example of a method of processing a workpiece according to an embodiment of the present invention.

Hereinafter, the embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following examples as long as they do not contradict the gist of the present invention. In the following embodiments, the same elements are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

(grinding machine for grinding machine)

Fig. 1 is a perspective view showing an example of a polishing brush for a polishing machine according to an embodiment of the present invention. Fig. 2(a) is a side view showing an example of a polishing brush for a polishing machine according to an embodiment of the present invention, and shows an internal structure of the rotary grip portion. Fig. 2(b) is a view showing the polishing machine of the embodiment of the present invention as seen from the opening side of the holder. Fig. 3 is a cross-sectional view showing a state in which Fig. 2(b) is cut by a line of X-X. In the present embodiment, the polishing brush 12 for a grinder is composed of a brush-like grindstone 1, a rotary grip portion 7, and a fixed jig 8. The brush-like grindstone 1 is provided with a linear coffin 2, a bracket 3, and a grip portion 6. The fixed jig 8 includes a shaft position adjusting portion 9 and a fixed portion 10.

The brush-like grindstone 1 has a structure in which the proximal end side of the plurality of linear coffins 2 is held by the cylindrical holder 3. The linear coffin 2 is a material that can polish the workpiece, that is, a material having a hardness higher than that of the workpiece, and is not particularly limited, and can be appropriately selected depending on the object to be processed, the purpose of the processing, and the like. Specifically, for example, a collection yarn in which long fibers such as alumina long fibers, glass long fibers, strontium carbide long fibers, or boron long fibers are collected is impregnated with a resin, a urethane resin, an epoxy resin, or the like. A binder resin such as a phenol resin, a polyimide resin, or an unsaturated polyester resin is cured. In the case of polishing the iron-based metal and the non-ferrous metal, for example, in the case of polishing the iron-based metal or the non-ferrous metal, the long-fiber of alumina or the long-fiber of cerium carbide is preferable because it is excellent in polishing property to these metals. Further, the collection yarn may be formed using two or more types of long fibers.

The cylindrical holder 3 is open at one end in the axial direction. As shown in Fig. 3, in the end portion on the opposite side to the opening side of the holder 3, an insertion hole 4 for inserting the proximal end side of the linear coffin 2 is provided inside. The linear coffin 2 has its proximal end side inserted into the insertion hole 4, and is held by the holder 3 by being fixed by an adhesive.

In the inside of the bracket 3, a support shaft 5 is provided in such a manner that an end portion on the opposite side to the opening side extends along the rotation axis. As shown in Fig. 2(b), when the brush-like grindstone 1 of the present embodiment is viewed from the opening side of the holder 3, the plurality of linear coffins 2 are along the support 3, centering on the support shaft 5. The inner wall is circumferentially arranged at a certain interval. In the brush-like grindstone 1 of the present embodiment, by providing a certain space between the plurality of linear coffins 2, the cut powder can be efficiently discharged, and the heat radiation effect is also excellent. Therefore, deburring, grinding processing, and the like can be performed with high efficiency and high precision.

When the linear coffin 2 is in contact with the workpiece 20, the inner wall of the holder 3 and the support shaft 5 are used to make the wire coffin toward the inner wall side of the holder 3 and the side of the support shaft 5 side. The retraction of 2 is restricted, and the inner wall side of the bracket 3 and the side of the support shaft 5 in the linear coffin 2 are less likely to cause a difference in bending rigidity. As a result, the inner wall side and the side of the support shaft 5 of the stent 3 in the linear coffin 2 are less likely to be inferior in abrasion degree, and tend to improve the accuracy of deburring and polishing work.

A fitting groove is provided in a substantially central portion when the end portion on the opposite side to the opening side of the bracket 3 is viewed from the axial direction, and one end of the grip portion 6 is fitted into the fitting groove. A female thread groove is provided in an end portion of the grip portion 6 opposite to the fitting portion of the bracket 3. Rotating grip 7. By inserting the grip portion 6 into the shaft insertion hole provided in the rotation grip portion 7, the female thread groove of the grip portion 6 is screwed to the bolt, and the brush-shaped grindstone 1 is rotatable. Ground control. Further, in the present embodiment, the grip portion 6 and the holder 3 are detachably formed. However, for example, the grip portion 6 and the holder 3 may be integrally provided.

The rotating grip portion 7 is not particularly limited as long as the brush-like grindstone 1 can be rotatably held. In order to suppress abrasion and heat generation of the rotary grip portion 7, it is preferable to have a bearing. For example, a ball bearing, a roller bearing, a tapered roller bearing, or a needle bearing can be used. Ball bearings are preferred from the viewpoint of reducing the rolling resistance and being suitable for high-speed rotation. Further, in the present embodiment, the rotation grip portion 7 is a ball bearing. The bearing has a plurality of preferred ones for the shaft.

As described above, when the brush-shaped grindstone 1 is rotatably held by the rotary grip portion 7 and the brush-like grindstone 1 and the workpiece 20 are brought into contact with each other while moving relative to each other, it may occur in a brush shape. The force of the contact surface with the workpiece 20 in the grindstone 1 is used as a driving force to rotate the grindstone 1 . For example, when the brush-like grindstone 1 is in contact with the workpiece 20 that is moving by rotation or the like, the grindstone 1 can be rotated by using the kinetic energy of the workpiece as a driving force. Therefore, when the grinder 12 for a grinder of the present embodiment is used as a tool for a lathe or the like, the rubbing-like grindstone 1 is rotated while being in contact with the workpiece by the kinetic energy of the workpiece. The contact point with the workpiece in the brush-shaped grindstone 1 is not necessarily obtained, and the effect of deburring and polishing can be sufficiently obtained. Moreover, when the brush-like grindstone 1 is in contact with the rotating workpiece, slippage occurs at the contact point thereof. In the case where the brush-like grindstone is rotated, the rotation ratio of the brush-like grindstone and the workpiece is not 1:1, so that an excellent rubbing effect can be obtained.

In the rotary grip portion 7, two screw holes are provided at point-symmetric positions around the shaft insertion hole, and are coupled to the shaft position adjusting portion 9 by bolts. The shaft position adjusting portion 9 is coupled to the fixed portion 10, and can be rotated by the connecting portion as an axis. By moving the shaft position adjusting portion 9, the contact between the linear coffin 2 and the workpiece can be easily adjusted. By appropriately adjusting the contact position of the linear coffin 2 and the workpiece, the type of the linear coffin and the workpiece, the purpose of the processing, and the like, an excellent polishing effect can be obtained.

The fixed portion 10 is fixed by the tool holding portion 21 of the machine tool. In the present embodiment, the fixed portion 10 is formed into a substantially square shape, but is not particularly limited as long as it can be fixed by a tool holder of a working machine.

Fig. 4 is a perspective view of a polishing machine for a polishing machine according to another embodiment of the present invention which is different from the polishing brush for an embodiment of the present invention. Fig. 5 is a perspective view showing a state in which the polishing brush for the polishing machine shown in Fig. 4 is viewed from the back side. The polishing machine of the present embodiment does not have a shaft position adjusting portion for the grinding brush, and the rotating grip portion 7 is coupled to the fixed jig 8. The fixed jig 8 is provided with a fixed portion, and the fixed portion is fixed by a tool holding portion of the working machine. The adjustment of the contact portion between the linear coffin 2 and the workpiece is performed by adjusting the position at which the fixed jig 8 is fixed to the tool holding portion of the machine tool and moving the tool holding portion of the machine tool. borrow When the brush-shaped grindstone 1 is rotatably held by the rotary grip portion 7 and the brush-like grindstone 1 and the workpiece 20 are brought into contact with each other while moving relative to each other, it may occur in the grindstone 1 The force of the contact surface with the workpiece 20 is used as a driving force to rotate the brush-shaped grindstone 1. For example, when the brush-shaped grindstone 1 is in contact with a workpiece that is subjected to movement such as rotation, the brush-like grindstone 1 can be rotated by using the kinetic energy of the workpiece as a driving force.

(tool bracket)

The tool holder 11 of the embodiment of the present invention is a part of the polishing brush 12 for the polishing machine shown in Fig. 1, and includes a rotation holding portion 7 and a fixing by the shaft position adjusting portion 9 and the fixed portion 10. Tooling 8. The configuration, function, and the like of each part are as described in the above-mentioned items for the polishing machine.

Further, in the present embodiment, the tool holder 11 is held by the polishing brush, but when the cutting is performed, the tool for the turning tool can be gripped instead of the grinding brush.

(processing methods) (First Embodiment)

In the first embodiment of the processing method of the present invention, the working machine such as a lathe that does not have the power to rotate the tool is used as the polishing tool, and the workpiece 12 is processed while rotating the workpiece. The method of material processing. By brushing along the axis of rotation of the workpiece 20 The grindstone 1 is in contact with the end surface of the workpiece, and the grindstone 1 is rotated by the rotational force of the workpiece 20 to process the workpiece 20. When the brush-like grindstone 1 is brought into contact with the workpiece 20 while rotating, the contact point with the workpiece 20 in the grindstone 1 is not made constant, so that deburring can be sufficiently obtained. The effect of the grinding is prevented, and only a part of the brush-like grindstone 1 is prevented from being extremely worn, and the life of the brush-like grindstone 1 can be prolonged.

In order to rotate the brush-like grindstone to withstand the effect of deburring and polishing by the rotation of the workpiece 20, the amount of the cut and the number of revolutions of the workpiece are preferably adjusted so that the brush-like grindstone rotates. The number of rotations of the workpiece 20 is not particularly limited, but is preferably 50 rpm or more, and more preferably 1000 rpm or more.

In the sixth drawing, when the brush-like grindstone 1 is brought into contact with the end surface 20a of the workpiece perpendicularly intersecting the rotation axis of the workpiece 20, the brush-like grindstone 1 is received from the workpiece 20. Schematic diagram of force. The diameters of the workpiece 20 and the brush-shaped grindstone 1 are both 20 mm, and the length of the line connecting the respective rotating centers of the workpiece 20 and the brush-shaped grindstone 1 is 10 mm. Moreover, the overlap ratio is 100%. In the present specification, the overlap ratio refers to the length of the overlap between the workpiece and the brush-shaped grindstone on a straight line including the center of rotation of the workpiece and the center of rotation of the brush-shaped grindstone, and is processed. The value of the radius of the object divided.

In the sixth drawing, the workpiece 20 is rotated clockwise. At the point P1, the brush-shaped grindstone 1 receives the force F1 from the workpiece 20 in the tangential direction of the end surface of the workpiece 20. Decompose force F1 into a mill When the tangential direction and the normal direction of the outer circumference of the brush-shaped grindstone 1 are set, the force in the tangential direction can be set to the force Ft1, and the force in the normal direction can be set to the force Fn1. Similarly, in the P2 spot, the brush-like grindstone 1 receives the force F2 from the workpiece 20. When the force F2 is decomposed into the tangential direction and the normal direction of the brush-like grindstone 1, the force in the tangential direction can be set to the force Ft2, and the force in the normal direction can be set to the force Fn2. At the center of rotation of the workpiece 20, that is, at the point P0, the force that the brush-shaped grindstone 1 receives from the workpiece is zero.

For example, in the P2 spot, with respect to the brush-like grindstone 1, in the opposite direction to the force Ft2, the resistance Fr generated when the brush-shaped grindstone 1 sits on the workpiece 20 is actuated. When the brush-shaped grindstone 1 is in contact with the workpiece 20 that is rotated, the force Ft2 in the tangential direction that the brush-like grindstone 1 receives from the workpiece 20 exceeds the resistance Fr at the point P2, that is, Ft2 In the case of >Fr, the force is actuated by rotating the brush-shaped grindstone 1 at the P2 point. On the other hand, in the P2 point, the force Ft2 in the tangential direction that the brush-like grindstone 1 receives from the workpiece 20 is lower than the resistance Fr, that is, in the case of Ft2 < Fr, in the P2 point, The force of the grinding of the grindstone 1 does not work.

Here, in the P2 point, the relationship between the force F received by the brush-shaped grindstone 1 from the workpiece 20 and the resistance Fr generated when sitting on the workpiece is described in the workpiece 20 and the brush-shaped grindstone. All of the contact faces of 1 occur: the force F that the brush-like grindstone 1 receives from the workpiece 20 and the resistance Fr that occurs when sitting. The rotation of the brush-like grindstone 1 or the non-rotation is based on the tangential direction of the grindstone 1 from the workpiece 20 in the contact surface of the workpiece 20 and the grindstone 1 Force It is determined whether or not any of the sum ΣFt of Ft and the sum ΣFr of the resistance Fr generated at the contact surface of the workpiece 20 and the brush-like grindstone 1 becomes large. The sum ΣFt of the force Ft in the tangential direction is larger than the sum ΣFr of the resistance Fr. The brush-like grindstone 1 rotates, and the sum ΣFt of the force Ft in the tangential direction is more than the sum 阻力Fr of the resistance Fr. In the small case, the brush-like grindstone 1 does not rotate.

The resistance Fr generated when the brush-like grindstone 1 is seated on the workpiece 20 can be adjusted mainly by the amount of cutting of the grindstone 1 toward the workpiece 20. When the amount of cut increases, the resistance Fr also increases. In addition, in the present specification, the amount of cut-in refers to a state in which the first end surface of the brush-shaped grindstone is in contact with the workpiece, and the brush-like grindstone is further pressed toward the workpiece. The amount of movement of the leading end face of the brush-like grindstone. Fig. 7 is a schematic view showing a state in which the brush-like grindstone is further pressed toward the workpiece after the front end surface of the rubbing-shaped grindstone is brought into contact with the workpiece. In Fig. 7, the length D is equivalent to the amount of cut.

In the case where the edge portion of the workpiece 20 is deburred, the portion where the deburring action occurs in the brush-like grindstone 1 and the portion where the driving force is transmitted from the workpiece 20 are performed. It is different. Fig. 8 is a view showing a portion where the deburring action occurs in the brush-like grindstone 1 and a portion where the driving force is transmitted from the workpiece 20. In Fig. 8, the diameter of the workpiece 20 and the diameter of the brush-like grindstone 1 are the same. The arrow in the figure indicates the direction of rotation, the workpiece 20 is rotated clockwise, and the brush-shaped grindstone 1 is rotated counterclockwise. In Fig. 8, the portion where the deburring action occurs is the brush-like grindstone 1 sitting on the workpiece 20 At the point A, the portion where the driving force is transmitted from the workpiece 20 toward the brush-like grindstone 1 is the contact with the end surface 20a of the workpiece by the brush-like grindstone 1 at the point a, the b-site, and the c-site. Location.

In the ninth aspect, the magnitude of the force that rotates the brush-shaped grindstone 1 in the same direction as the direction of rotation of the workpiece 20 and the magnitude of the force that rotates in the opposite direction to the direction of rotation of the workpiece 20 are shown. Schematic diagram of the distribution. In Fig. 9, the diameter of the workpiece 20 and the diameter of the brush-like grindstone are the same, and the workpiece 20 is rotated clockwise. The dotted line curve 31 is an imaginary curve showing the distribution of the direction and magnitude of the force acting toward the brush-like grindstone 1.

When the curve 31 is operated at a position on the circumference where P1 and P2 of the brush-like grindstone 1 are connected, and the brush-like grindstone 1 is rotated in the A direction, a dotted line is drawn on the left side of the circumference. When the force of the brush-shaped grindstone 1 rotating in the B direction is actuated, the dotted line is drawn on the right side of the circumference. Further, the curve 31 is a curve in which the force to be rotated in the A direction or the force to be rotated in the B direction is larger, and the curve is drawn away from the circumference of the brush-shaped grindstone 1 in the horizontal direction.

In Fig. 9, the area of the field held by the circumference of the brush-shaped grindstone 1 and the curve 31 outside the circumference of the brush-like grindstone 1 is set to Ra, and the circumference of the grindstone 1 is The area of the area in which the curve 31 in the circumference of the brush-like grindstone 1 is held is set to Rb. When Ra>Rb, the brush-shaped grindstone 1 is rotated in the A direction, and Ra<Rb is the brush-like shape. The grindstone 1 is rotated in the B direction. When Ra = Rb, the brush-like grindstone 1 does not rotate. The brush-like grindstone 1 is directed toward the workpiece 20 When the rotation direction is rotated in the same direction, since the contact point between the brush-shaped grindstone 1 and the workpiece 20 is slid, the rotation of the workpiece 20 and the rotation of the grindstone 1 are not synchronized, and as a result, By fully obtaining the effect of brushing, the efficiency and precision of deburring and grinding operations can be improved. Further, the brush-shaped grindstone 1 is rotated in a direction opposite to the direction of rotation of the workpiece 20, and the friction between the workpiece 20 and the grindstone 1 can be increased, and deburring and grinding can be improved. s efficiency.

When the brush-shaped grindstone 1 is in contact with the workpiece 20 from the end surface 20a of the workpiece that intersects perpendicularly with the rotation axis of the workpiece 20, the grindstone 1 is rotated toward the workpiece 20. The rotation in the same direction or in the opposite direction to the rotation direction of the workpiece 20 differs depending on the size of the diameter of the workpiece 20 and the diameter of the brush-like grindstone 1, the overlap ratio, and the amount of cut. For example, the diameter of the workpiece 20 is the same as the diameter of the brush-shaped grindstone 1, and if the overlap ratio is less than 100%, the grindstone 1 is intended to rotate in the opposite direction to the direction of rotation of the workpiece 20. When the overlap ratio is 100%, the brush-like grindstone 1 does not rotate, and if the overlap ratio exceeds 100%, the grindstone 1 is intended to rotate in the same direction as the direction of rotation of the workpiece 20.

Fig. 10 is a view showing that the workpiece 20 and the grindstone 1 are made to have the same diameter, and the workpiece 20 is rotated clockwise, and the overlap ratio is set to 50%, which is perpendicular to the rotation axis of the workpiece 20. A schematic view of a state in which the end surface 20a of the workpiece to be processed is in contact with the workpiece 20 by the end surface 20a of the workpiece. Further, in Fig. 11, the workpiece 20 and the brush-shaped grindstone 1 are formed to have the same diameter, and the workpiece 20 is rotated clockwise to overlap. The rate is set to 58.58%, and a schematic view of a state in which the brush-shaped grindstone 1 is in contact with the workpiece 20 from the end surface 20a of the workpiece perpendicularly intersecting the rotation axis of the workpiece 20. In the case of the brush-like grindstone 1, the force to be rotated in the counterclockwise direction (the direction opposite to the direction of rotation of the workpiece 20) is actuated by the rotation of the workpiece 20. This force is greater than the sum of the resistances Fr generated when the brush-like grindstone 1 sits on the workpiece 20, and the grindstone 1 is rotated counterclockwise. The number of rotations of the brush-shaped grindstone 1 can be controlled by the number of rotations of the workpiece and the amount of cut.

Fig. 12 is a view showing that the workpiece 20 and the grindstone 1 are made the same diameter, and the workpiece 20 is rotated clockwise, and the overlap ratio is set to 150%, which is perpendicular to the rotation axis of the workpiece 20. A schematic view of a state in which the end surface 20a of the workpiece to be processed is in contact with the workpiece 20 by the end surface 20a of the workpiece. In this case, in the brush-like grindstone 1, the force to be rotated in the clockwise direction (the same direction as the rotation direction of the workpiece) is actuated by the rotation of the workpiece 20. This force is larger than the sum of the resistances Fr generated when the brush-like grindstone 1 sits on the workpiece 20, and the grindstone 1 is rotated clockwise. The number of rotations of the brush-like grindstone 1 can be controlled by the number of rotations of the workpiece 20 and the amount of cut.

(Second embodiment)

In the first embodiment, the method of processing the brush-shaped grindstone 1 from the direction of the rotation axis of the workpiece 20 in contact with the end surface 20a of the workpiece is described, but in the second embodiment In the example, the method of processing the brush-shaped grindstone 1 in contact with the side surface 20b of the workpiece is described. law. In the processing method of the second embodiment, the brush-like grindstone 1 is rotated by being in contact with the side surface 20b of the workpiece to be rotated by the ruby-shaped grindstone 1, and is present on the side surface 20b of the workpiece. The burrs and bumps are removed.

Fig. 13 is a schematic view showing a state in which the brush-like grindstone 1 is brought into contact with the side surface 20b of the workpiece, as seen from the side surface side. In the second embodiment, the shape of the workpiece 20 to be processed is not particularly limited. For example, as shown in Fig. 13, a cylindrical workpiece 20 can be used. The workpiece 20 is rotated about the rotation axis W. In Fig. 13, the front end surface of the brush-shaped grindstone 1 and the side surface 20b of the workpiece are not made parallel (that is, the front end surface of the grindstone 1 and the side surface 20b of the workpiece are made The front surface of the brush-like grindstone 1 is inclined to the side surface 20b of the workpiece, and only a part of the front end surface is in contact with the side surface 20b of the workpiece. In Fig. 13, the workpiece 20 is rotated in the direction toward the front side or in the direction of the rear side, by the left end portion of the front end surface of the brush-shaped grindstone 1, the direction toward the front side, or the rear side. The direction of the side gives the kinetic energy, and the brush-like grindstone 1 rotates. In this case, the side surface 20b may be widely polished by changing the position at which the side surface 20b of the workpiece 20 comes into contact with the brush-shaped grindstone 1.

On the other hand, Fig. 14 is a schematic view showing a state in which the brush-like grindstone 1 is brought into contact with the side surface 20b of the workpiece, as seen from the end surface side of the workpiece. In Fig. 14, the workpiece 20 is cylindrical and rotates about the rotation axis W. In Fig. 14, the front end surface of the brush-shaped grindstone 1 and the side surface 20b of the workpiece are made parallel (i.e., the brush The front end surface of the grindstone 1 and the joint surface of the side surface 20b of the workpiece are parallel, and the front end surface of the grindstone 1 and the end surface 20b of the workpiece and the end edge portion of the end surface 20a are brought into contact with each other, and The end portion of the front end surface of the brush-shaped grindstone 1 is not in contact with the workpiece 20, and only a part of the front end surface is in contact with the side surface 20b of the workpiece. In Fig. 14, the workpiece 20 is rotated clockwise, and the kinetic energy is given in the direction of the right side by the front end surface of the brush-shaped grindstone 1 which is in contact with the side surface 20b of the workpiece, and the grinding is performed. The brush-shaped grindstone 1 rotates. As shown in Fig. 14, the burr which is present in the edge portion of the side surface 20b of the workpiece is removed, and the portion where the deburring action occurs is where the brush-like grindstone 1 sits on the side surface 20b of the workpiece, from being processed. The portion where the object 20 is directed toward the brush-like grindstone 1 to transmit the driving force is a place where the brush-like grindstone 1 comes into contact with the side surface 20b of the workpiece.

When the workpiece 20 is in the shape of a column, the front end surface of the brush-shaped grindstone 1 and the side surface 20b of the workpiece are parallel (that is, the front end surface of the grindstone 1 and the side surface of the workpiece) When the rubbing-shaped grindstone 1 is in contact with the side surface 20b of the workpiece, and the entire front end surface of the rubbing grindstone 1 is in contact with the side surface 20b, the rubbing-like grinding is performed. Stone 1 does not rotate. In order to rotate the brush-like grindstone 1 as shown in Fig. 13 and Fig. 14, even if the front end surface of the grindstone 1 and the side surface 20b of the workpiece do not come into contact in parallel, or The front end surface of the brush-shaped grindstone 1 and the side surface 20b of the workpiece are in contact with each other, and only a part of the front end surface of the brush-shaped grindstone 1 is in contact with the side surface 20b of the workpiece. That is, in order to be processed by the object The movement of 20, and the condition that the brush-like grindstone 1 is rotated, is the center of rotation in the front end face of the brush-like grindstone 1, and the direction of the brush-like grindstone and the force received from the workpiece When the parallel straight line is defined as the axis of symmetry, the contact surface with the workpiece 20 in the brush-shaped grindstone 1 is non-linearly symmetrical with respect to the axis of symmetry.

(Third embodiment)

In the first embodiment and the second embodiment, the processing method in the case where the workpiece 20 is rotationally moved is described, but in the third embodiment, the workpiece 20 is fixed, and the brush-shaped grindstone 1 is revolved. The processing method of the situation of movement.

Figure 15 is a schematic view showing a third embodiment of the processing method of the present invention. In Fig. 15, the workpiece 20 is fixed. One end portion of the grinding rotating mechanism 13 and the shaft 14 is coupled so that the longitudinal direction of the shaft 14 can be rotated as a rotating shaft. The other end of the shaft 14 is connected to the fixed portion 10 of the grinder for grinding through the connecting portion 15. The other constitution of the brush for the grinder is as described above. In the third embodiment of the processing method of the present invention, the shaft 14 is rotated by the brush rotating mechanism 13, and the rotational force is transmitted from the shaft 14 toward the fixed portion 10, and the joint portion 15 is brushed as a revolving shaft. Grinding stone 1 revolution movement. By rotating the brush-like grindstone 1 in the revolving motion, the brush-like grindstone 1 and the edge portion of the workpiece 20 are brought into contact with each other, and the grindstone 1 is rotated along the grindstone 1 The workpiece 20 can be processed by rotating the shaft. Because the brush-like grindstone 1 is rotated while being in contact with the workpiece 20, the brush is rubbed. The contact point with the workpiece 20 in the grindstone 1 does not become constant, so that the effect of deburring and grinding can be sufficiently obtained, and the brush-like grindstone 1 is prevented from being extremely worn only, and the rubbing can be extended. The life of the grindstone 1.

The brushing mechanism 13 is not particularly limited as long as the shaft 14 can be rotated. For example, a known motor such as a brush attachment motor, a brushless motor, or a stepping motor can be used.

(Fourth embodiment)

In the fourth embodiment of the present invention, the workpiece 22 is processed by linearly moving the workpiece 22 while using the polishing brush 12 as a polishing tool.

Fig. 16 is a schematic view showing an example of a processing method of the fourth embodiment. Fig. 16 is a view showing a case where the brush-shaped grindstone 1 is in contact with the workpiece 22 that moves linearly, and Fig. 16(a) is a view seen from the direction of contacting the brush-like grindstone 1, Fig. 16 (b) is a view seen from a direction perpendicular to the direction. In the fourth embodiment, the shape of the workpiece 22 to be processed is not particularly limited. For example, as shown in Fig. 16, a workpiece 22 having a rectangular parallelepiped shape can be used. The workpiece 22 is linearly moved in the left direction. In Fig. 16 (a) and (b), the front end surface of the brush-shaped grindstone 1 and the upper surface of the workpiece 22 are made parallel (that is, the front end surface of the grindstone 1 is processed and processed. An end portion of the upper surface of the workpiece 22 that is parallel to the direction in which the workpiece 22 is linearly moved, and a brush-like grindstone 1 The first end face is contacted in such a manner that only a part of the front end face is in contact with the upper surface of the workpiece 22. In Fig. 16(b), the front end portion of the front end surface of the brush-like grindstone 1 is not in contact with the workpiece 22. In Fig. 15, the brush-like grindstone 1 is rotated by imparting kinetic energy to the left side in the contact portion with the workpiece 22 in the front end surface of the brush-like grindstone 1. Further, the workpiece 22 may be formed to move linearly in only one direction, and may be reciprocated left and right. The workpiece 22 is linearly moved by reciprocating the brush-like grindstone, thereby improving the deburring effect.

The method of contacting the workpiece 22 and the brush-like grindstone 1 is not particularly limited. However, from the viewpoint of improving the rotational force of the brush-like grindstone and improving the deburring effect, the tip end of the grindstone is passed. In the case of the center of rotation in the surface, and the straight line parallel to the direction of the force received by the workpiece 22 from the workpiece 22 as the axis of symmetry, the contact area with the workpiece in the brush-shaped grindstone is Line symmetry is preferred.

The brush-shaped grindstone 1 is gripped by the tool holder 11 provided with the rotating grip portion 7 and the fixing jig 8. The method of fixing the tool holder 11 to the work machine is not particularly limited, and for example, the tool holder 11 can be screwed to a work machine or the like.

The workpiece 22 is brought into contact with the workpiece 22 that linearly moves the brush-like grindstone 1, and the workpiece 22 is processed by rotating the grindstone 1 from the force received by the workpiece 22. Since the contact point with the workpiece 22 in the brush-like grindstone 1 does not become constant, the effect of deburring and grinding can be sufficiently obtained, and the brush-like grindstone 1 is prevented from being extremely ground only. The consumption can extend the life of the brush-like grinding stone 1.

In order to rotate the brush-like grindstone by the linear motion of the workpiece 22 to perform the deburring and polishing effect, the method of rotating the grindstone to adjust the cutting amount and the speed of the linear motion of the workpiece is better. . The speed of the linear motion in the workpiece 22 is not particularly limited, but is preferably 5 m/min or more, and more preferably 20 m/min or more.

In the processing method of the fourth embodiment, for example, when the workpiece 22 is conveyed, the brush-like grindstone 1 can be rotated and deburred by linear motion when the workpiece 22 is conveyed. In the case where the workpiece 22 is reciprocated by the ball screw linear motion unit including the drive source of the servo motor or the like, the brush-like grindstone 1 can be rotated by the linear motion of the workpiece 22 Deburring.

(Fifth Embodiment)

In the fourth embodiment, the processing method in the case where the workpiece 20 is linearly moved is described. However, in the fifth embodiment, the processing in which the workpiece 20 is fixed and the brush-shaped grindstone 1 is linearly moved is described. method.

Figure 17 is a schematic view showing a fifth embodiment of the processing method of the present invention. In the case of the workpiece 22 to be fixed, the brush-like grindstone 1 is in contact with each other while moving linearly. In Fig. 17, the ball screw linear motion unit 16 is provided with a servo motor 17 and a slide block 18. The brush-shaped grindstone 1 is rotatably held by a rotary grip portion (not shown), and the grip portion is rotated to be coupled to the slide block body 18. In Fig. 17, the front end face of the brush-shaped grindstone 1 and the workpiece are processed. The upper surface of 22 is parallel (that is, the front end surface of the brush-like grindstone 1 and the joint surface of the upper surface of the workpiece 22 are parallel), and the upper surface of the workpiece 22 is rubbed and polished. The end edge portion formed by the parallel side of the linear motion of the grindstone 1 and the front end surface of the grindstone 1 are in contact with each other, and only a part of the front end surface is in contact with the upper surface of the workpiece 22. In Fig. 17, the left end portion of the front end surface of the brush-like grindstone 1 is not in contact with the workpiece 22. In Fig. 17, by using the servo motor 16 as a drive source, the brush-like grindstone 1 is linearly moved in the direction of the arrow in the figure, and the workpiece in the front end face of the grindstone 1 is processed. At the contact portion of 22, the energy for rotating the brush-like grindstone 1 counterclockwise is given, and the brush-like grindstone 1 is rotated. Further, the brush-shaped grindstone 1 may be formed to have a linear motion in only one direction, and may be reciprocating. The brush-like grindstone 1 is linearly moved by reciprocating the end edge portion of the workpiece 22 to improve the deburring effect. Further, although not shown, the rotary grip portion may be coupled to the fixed jig and the fixed jig and the slide block 18 may be coupled to each other.

[Examples] (Example 1)

Using a workpiece having a diameter of 100 mm and a brush-shaped grindstone having a diameter of 100 mm, the end face and the brush of the workpiece are changed while changing the overlap ratio under the conditions of a cutting amount of 0.1 mm and a number of revolutions of the workpiece of 2000 rpm. Contact with the grindstone. The direction of rotation of the brush-like grindstone at each overlap rate was evaluated, and The grinding effect on the workpiece. The results are shown in Table 1. In Table 1, the W diameter is a diameter indicating a workpiece, and the B diameter is a diameter indicating a brush-like grindstone. Further, "○" indicates that the end surface of the workpiece and the edge portion thereof have deburring and polishing effects, and "NA" indicates that the rubbing-shaped grindstone does not act on the end surface of the workpiece and the end thereof. The edge portion has no deburring and grinding effect, and "X" indicates that the brush-like grindstone is not rotated.

(Examples 2 and 3)

In the same manner as in the first embodiment, the end surface of the workpiece and the brush-like grindstone were brought into contact with each other, except that the diameter of the workpiece and the diameter of the grindstone were changed as shown in Table 1. The rotation direction of the brush-shaped grindstone in each overlap ratio, and the deburring and polishing effect toward the workpiece are as shown in Table 1.

(Examples 4 and 5)

The end surface of the workpiece and the rubbing were performed in the same manner as in the first embodiment except that the diameter of the workpiece and the diameter of the grindstone were changed as shown in Table 2. Contact with the grindstone. The rotation direction of the brush-shaped grindstone in each overlap ratio and the evaluation of the polishing effect on the workpiece are shown in Table 2. Further, the highest overlap ratio in Example 4 is 120%, and the highest overlap ratio in Example 5 is 50%, both of which are viewed from above, and the brush-like grindstone as a whole is located in the inside of the workpiece. Case.

1‧‧‧Brushing grindstone

2‧‧‧Wired coffin

3‧‧‧ bracket

7‧‧‧Rotary grip

8‧‧‧Fixed tools

9‧‧‧Axis position adjustment unit

10‧‧‧Fixed Department

12‧‧‧ Grinding machine

20a‧‧‧End face of workpiece

20b‧‧‧Side of the workpiece

21‧‧‧Tools Maintenance Department (Working Machinery)

Claims (12)

A processing method is a processing method for processing a workpiece, which is characterized in that, for a working machine that does not have a power for rotating a tool, a brush-like grindstone and a workpiece are brought into contact with each other, and a brush-like shape is used. The grindstone and the relative movement of the workpiece rotate the brush-like grindstone. The processing method of the first aspect of the invention, wherein, in the front end surface of the brush-like grindstone, a portion where the driving force is transmitted by contact with the workpiece, and a portion of the edge portion of the workpiece The part that makes contact with the deburring action is different. The processing method of claim 1 or 2, wherein the relative movement is the movement of the workpiece. The processing method of claim 3, wherein the movement of the workpiece is a rotary motion. The processing method of claim 4, wherein the brush-like grindstone is brought into contact with the workpiece by an end surface of the workpiece perpendicularly intersecting the rotation axis of the workpiece, and is directed to the workpiece The direction of rotation is in the same direction to rotate the brush-like grindstone. The processing method of claim 4, wherein the brush-like grindstone is brought into contact with the workpiece by an end surface of the workpiece perpendicularly intersecting the rotation axis of the workpiece, and is directed to the workpiece The brush-like grindstone is rotated in the opposite direction of rotation. The processing method of claim 4, wherein the center of rotation in the front end face of the brush-like grindstone is passed, and When the brush-shaped grindstone is defined by a straight line parallel to the direction of the force received by the workpiece as the axis of symmetry, the contact surface with the workpiece in the brush-shaped grindstone is a non-linear symmetry to the axis of symmetry. The brush-like grindstone is brought into contact with the workpiece. The processing method of claim 3, wherein the movement of the workpiece is a linear motion. The processing method of claim 1 or 2, wherein the relative movement is a revolving motion of the brush-like grindstone. The processing method of claim 1 or 2, wherein the relative motion is a linear motion of the brush-like grindstone. A polishing brush for a grinder, comprising: a brush-shaped grindstone having a linear coffin and a support for holding the linear coffin; and a brush-like shape by supporting the rear end side of the bracket The rotating grip portion that the grindstone holds in a rotatable state and the rotating grip portion are fixed to the fixing jig for the working machine. A tool holder includes: a rotary grip portion for holding a tool in a rotatable state; and a fixing jig for fixing the rotary grip portion to the working machine, wherein the fixing jig includes: a shaft position adjusting portion, and a Fixed to the fixed portion of the working machine, the rotary grip portion is coupled to the shaft position adjusting portion, and the shaft position adjusting portion is The shaft position adjusting portion is coupled to the fixed portion via the connecting portion, and the shaft portion is rotated to move the connecting portion as a shaft. The shaft position adjusting portion adjusts the position of the rotating shaft of the tool that is in contact with the workpiece.