JP2016060029A - Bite tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an operator to easily grasp a used portion of a cutting blade.SOLUTION: A bite tool (46) machines a top face (61) of a workpiece (W) by rotating around a rotary shaft of machining means (40). A cutting blade (52) at the tip side of the bite tool is formed in a circular shape in a direction orthogonal to a rotation direction. An attachment angle of the bite tool with respect to a bite attachment part (45) of the machining means can be adjusted along the circular shape of the cutting blade. A surface (57) of the cutting blade is colored with a paint (55).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a bite tool used when turning the surface of a workpiece by a creep feed method.

  2. Description of the Related Art Conventionally, there is known a turning device that turns an upper surface of a workpiece using a cutting tool having an arcuate cutting edge (see Patent Document 1). In the processing apparatus described in Patent Document 1, a cutting tool mounting portion is attached to a part of the outer peripheral portion of a spindle mount that rotates around a vertical axis, and a cutting tool such as a carbide tool is fixed to the mount via the cutting tool mounting portion. Has been. Then, the tool held on the chuck table is turned by rotating the tool bit around the vertical axis of the spindle while feeding the chuck table (holding means) holding the workpiece at a low speed. Is turned by.

  Further, there has been proposed a method of effectively using the cutting blade by changing the attachment angle of the cutting tool and changing the position where the cutting blade hits the workpiece (for example, see Patent Document 2). At the attachment position of the bite tool described in Patent Document 2, there are three engaged parts that are engaged with the base end side of the bite tool so that the attachment angle of the bite tool with respect to the bite attachment part can be changed in three stages. Is formed. By changing the engagement position of the base end side of the bite tool between the three engaged parts, when one place of the arcuate cutting blade is worn, the workpiece is turned at the remaining place. It is possible.

JP 2006-245493 A JP 2009-012105 A

  However, in the turning device described in Patent Document 2, it is possible to effectively use the cutting edge of the cutting tool by changing the mounting angle of the cutting tool. It is difficult to grasp. For this reason, in order not to forget the wear part of the cutting blade, the mounting angle of the cutting tool used in the turning must be recorded in a management ledger or the like, which is a complicated operation for the operator.

  This invention is made | formed in view of this point, and it aims at providing the bite tool which can make an operator grasp | ascertain the used part of a cutting blade easily.

  The bite tool according to the present invention is a bite tool that is mounted on a turning means in a processing apparatus that includes at least a holding means for holding a workpiece and a turning means for turning the workpiece held on the holding means. A tool base that is attached to the tool mounting part of the turning means so that the angle can be adjusted, and an arcuate cutting blade that is formed at the tip of the tool base and that turns the workpiece. The surface of the cutting blade is colored with a paint.

  According to this configuration, since the surface of the arcuate cutting blade is colored with the paint, the paint is peeled off from the surface of the cutting blade when the workpiece is turned by the cutting blade. Therefore, it is possible for the operator to easily grasp the used part of the cutting blade used for turning, and troublesome work such as recording the mounting angle corresponding to the used part of the cutting blade in the management ledger. Can be omitted. Moreover, the unused part of the cutting blade which is not used for turning can be grasped from the part where the paint is not peeled off on the surface of the cutting blade. Therefore, the cutting blade can be effectively utilized to the maximum extent by adjusting the attachment angle of the cutting tool so that the workpiece is turned at an unused portion of the cutting blade.

  According to the present invention, by coloring the surface of the cutting blade with the paint, the operator can easily grasp the used part of the cutting blade based on the position where the paint is peeled off.

It is a perspective view of the turning apparatus which concerns on this Embodiment. It is a perspective view which shows the turning process by the turning apparatus which concerns on this Embodiment. It is explanatory drawing of angle adjustment of the bite tool which concerns on this Embodiment. It is explanatory drawing of the turning operation | movement which concerns on this Embodiment.

  Hereinafter, a turning apparatus according to the present embodiment will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a turning apparatus according to the present embodiment. FIG. 2 is a perspective view showing turning by the turning device according to the present embodiment. Note that the turning device according to the present embodiment is not limited to the device configuration dedicated to the turning device as shown in FIG. 1, and may be incorporated into a fully automatic type processing device in which a series of processing is performed fully automatically. Good.

  As shown in FIG. 1, the turning apparatus 1 creep feeds the upper surface of the workpiece W with a single tool tool 46 while feeding the holding means 20 holding the workpiece W in the X-axis direction at a low speed. It is configured to turn with a method. The workpiece W may be configured to be turned by the cutting tool 46, and may be a semiconductor substrate such as silicon, gallium arsenide, or silicon carbide, or a substrate formed of a tough material such as resin or metal.

  A rectangular opening extending in the X-axis direction is formed on the upper surface of the base 10 of the turning apparatus 1, and this opening is covered with a movable plate 11 that can move together with the holding means 20 and a bellows-shaped waterproof cover 12. ing. Below the waterproof cover 12, ball screw type advance / retreat means (not shown) for moving the holding means 20 in the X-axis direction is provided. On the surface of the holding means 20, a holding surface 21 for sucking and holding the workpiece W is formed by a porous porous material. The holding surface 21 is connected to a suction source (not shown) through a flow path in the holding means 20, and the workpiece W is sucked and held by the negative pressure generated on the holding surface 21.

  The column 15 on the base 10 is provided with a feeding means 30 that moves the turning means 40 toward and away from the holding means 20 in the Z-axis direction. The feeding means 30 has a pair of guide rails 31 arranged in the column 15 and parallel to the Z-axis direction, and a motor-driven Z-axis table 32 slidably installed on the pair of guide rails 31. Nut portions (not shown) are formed on the back side of the Z-axis table 32, and a ball screw 33 is screwed to these nut portions. The turning means 40 is moved along the guide rail 31 in the Z-axis direction when the ball screw 33 is rotationally driven by the drive motor 34 connected to one end of the ball screw 33.

  The turning means 40 is attached to the front surface of the Z-axis table 32 via a housing 41, and is configured by providing a mount 43 at the lower end of a cylindrical rotating spindle. The rotary spindle 42 is provided with a flange 44, and the turning means 40 is supported on the housing 41 via the flange 44. A cutting tool mounting portion 45 is provided on a part of the outer peripheral side of the lower surface of the mount 43, and a cutting tool 46 is mounted on the cutting tool mounting portion 45. The cutting tool 46 is a carbide cutting tool, a diamond cutting tool or the like, and an arcuate cutting blade 52 for turning the upper surface of the workpiece W is formed at the tip of a long cutting tool base 51 (see FIG. 2). ).

  In this case, as shown in FIG. 2, the cutting tool 46 is placed on the cutting tool mounting portion 45 so that the arcuate surface 57 of the cutting blade 52 is oriented in the normal direction with respect to the rotation direction (turning direction) of the rotary spindle 42. It is attached to. Thereby, the edge 53 which becomes the cutting edge of the cutting blade 52 is directed in the rotation direction of the rotary spindle 42, and the upper surface 61 of the workpiece W can be scraped off by the edge 53 of the cutting blade 52. The bite base 51 is attached so that the angle can be adjusted around the screw 54 by tightening or loosening the screw 54 with respect to the bite attaching portion 45.

  In the turning device 1 configured as described above (see FIG. 1), the turning means 40 is brought close to the holding means 20 while the cutting tool 46 is swung around the Z axis by the rotating spindle 42. Then, the edge 53 of the cutting blade 52 of the bite tool 46 is brought into rotational contact with the upper surface 61 of the workpiece W while cooling the cutting blade 52 by supplying machining water or air toward the workpiece W. The tool W and the work W are slid relative to each other, and the work W is turned. With the workpiece W being turned by the cutting tool 46, the holding means 20 is moved horizontally in the X-axis direction at a low speed, so that the workpiece W is turned by the creep feed method by the cutting tool 46.

  By the way, when the edge 53 of the cutting blade 52 of the cutting tool 46 is worn, the turning angle of the cutting blade 52 is recovered by adjusting the mounting angle of the cutting tool 46 and avoiding the worn portion of the edge 53. can do. However, if the attachment angle of the cutting tool 46 with respect to the cutting tool attaching portion 45 is forgotten, it may be attached at the same attachment angle as before. In this case, since the worn part of the edge 53 is used again, the workpiece W is not properly turned. In order to prevent this, it is conceivable to manage the mounting angle of the cutting tool 46, but this is troublesome for the operator.

  Therefore, in the cutting tool 46 according to the present embodiment, the surface 57 of the cutting blade 52 is colored with a paint 55 (see FIG. 3). This makes it possible for the operator to easily recognize that the part where the paint 55 has been peeled off from the cutting blade 52 has already been used for turning the workpiece W, and it is troublesome to manage the attachment angle of the cutting tool 46 and the like. There is no work. Further, the operator can recognize that the part where the paint 55 is not peeled off in the cutting blade 52 is an unused part. Since the operator can recognize an unused portion of the cutting blade 52 based on the presence or absence of the paint 55, the cutting blade 52 can be used effectively to the maximum.

  The angle adjustment of the bite tool will be described with reference to FIG. FIG. 3 is an explanatory diagram of the angle adjustment of the cutting tool according to the present embodiment. 3A shows a state in which the bite tool is vertically applied to the workpiece, and FIG. 3B shows how the paint is peeled off at this time. FIG. 3C shows a state in which the bite tool is applied obliquely to the workpiece, and FIG. 3D shows how the paint is peeled off at this time.

  As shown in FIG. 3A, a bite tool 46 is vertically attached to the bite attaching portion 45 of the turning means 40. In this case, with the bite base 51 of the bite tool 46 temporarily fixed to the bite attachment unit 45, the bite tool 46 is angle-adjusted using a dedicated jig, and then the bite attachment unit 45 is tightened by tightening the screws 54. The byte base 51 is fixed to the base. As a result, the center position of the arcuate cutting blade 52 of the cutting tool 46 is directed directly below the upper surface 61 of the workpiece W. Note that the dedicated jig is not particularly limited as long as the angle of the tool tool 46 can be adjusted. For example, a jig described in JP2013-031893A is used.

  A coating 55 is applied to the arcuate surface 57 of the cutting blade 52, and the entire surface of the cutting blade 52 is colored in a uniform color when the cutting tool 46 is not used. The coating material 55 may be any material that can color the surface of the cutting blade 52. For example, lacquer, enamel, acrylic coating, emulsion coating, or the like is used, but it adversely affects the workpiece W after turning. Those which do not give the Further, the cutting tool 46 is attached to the cutting tool mounting portion 45 so that the arcuate surface 57 of the cutting blade 52 is directed in a direction perpendicular to the turning direction and the edge 53 of the cutting blade 52 is turned in the turning direction. Yes.

  Then, the cutting blade 52 is brought close to the upper surface 61 of the workpiece W, and the tool W is turned around the Z axis of the rotary spindle 42 while the workpiece W is processed and fed in the X axis direction by the holding means 20. . Thereby, the upper surface 61 of the workpiece W is scraped off by the edge 53 of the cutting blade 52 turning around the Z axis. At this time, since one portion of the arcuate surface 57 of the cutting blade 52 is brought into sliding contact with the upper surface 61 of the workpiece W, the surface 57 of the cutting blade 52 is worn and the paint 55 is partially peeled off from the surface 57. ing. Only the paint 55 at the contact point between the surface 57 of the cutting blade 52 and the upper surface 61 of the workpiece W is peeled off, and the paint 55 is not peeled off from other than the contact point.

  As shown in FIG. 3B, the paint 55 is peeled off linearly along the direction (Y direction) perpendicular to the arc near the center of the arc (X direction) from the arc-shaped surface 57 of the cutting blade 52 after turning. ing. It is possible to make the operator easily recognize a used portion (attachment angle) on the surface 57 of the cutting blade 52 based on how the paint 55 is peeled off. In the example shown in FIG. 3B, since the paint 55 near the center of the arc of the arcuate surface 57 of the cutting blade 52 is peeled off, the turning tool 46 is already turned at an attachment angle at which the bite tool 46 is perpendicular to the bite attachment part 45. Can be recognized by the operator.

  Further, the surface 57 of the cutting blade 52 has the paint 55 peeled off only near the center of the arc, and the paint 55 has not been peeled off on both sides thereof. The part where the paint 55 is not peeled off is an unused part at the time of turning, and the operator can recognize the unused part with high accuracy by the presence or absence of the paint 55. That is, since the actually used part (wear part) becomes clear from the degree of peeling of the paint 55 on the surface 57 of the cutting blade 52, the attachment angle of the cutting tool 46 can be adjusted more finely. Therefore, the cutting tool 52 according to the present embodiment can utilize the cutting blade 52 to the maximum extent as compared with a cutting tool that can be adjusted only to a specified mounting angle.

  Next, as shown in FIG. 3C, the cutting tool 46 is tilted and attached to the cutting tool mounting portion 45 of the turning means 40. In this case, in a state where the bite base 51 of the bite tool 46 is temporarily fixed to the bite attachment part 45, it is avoided that the used portion of the surface 57 of the cutting blade 52 contacts the upper surface 61 of the workpiece W. In addition, the attachment angle of the bite tool 46 is adjusted using a dedicated jig. The tool base 51 is fixed to the tool mounting part 45 by tightening the screws 54. Thereby, the unused part in the surface 57 of the cutting blade 52 of the cutting tool 46 is directed directly below the upper surface 61 of the workpiece W.

  As shown in FIG. 3D, when the upper surface 61 (see FIG. 3C) of the workpiece W is scraped by the edge 53 of the cutting blade 52 in the same manner as described above, the surface 57 of the cutting blade 52 and the upper surface 61 of the workpiece W are removed. The paint 55 is partly peeled off by sliding contact with. From the arcuate surface 57 of the cutting blade 52 after the turning, the paint 55 is peeled off linearly along the Y-axis direction so as to be adjacent to the previously used portion. In the example shown in FIG. 3D, the paint 55 is peeled off from the vicinity of the center of the arc of the arc-shaped surface 57 of the cutting blade 52 to the left slightly, and the corresponding portion is a used portion (turned mounting angle). Can be easily recognized by the operator.

  When the cutting blade 52 is worn at the mounting angle of the cutting tool 46, the mounting angle of the cutting tool 46 is further adjusted by directing the unused portion of the cutting blade 52 directly below so as to avoid the worn portion. The tool tool 46 can continue to be used. In this case, as described above, the actual used location is recognized by the operator from the degree of peeling of the paint 55 on the surface 57 of the cutting blade 52, and the attachment angle of the cutting tool 46 is finely adjusted. Even if the attachment angle of the cutting tool 46 is changed, the cutting blade 52 has an arc shape, so that the contact surface between the cutting blade 52 and the workpiece W does not change, and the sharpness of the cutting blade 52 is reduced. There is no.

  With reference to FIG. 4, the turning operation using the turning means according to the present embodiment will be briefly described. FIG. 4 is an explanatory diagram of the turning operation according to the present embodiment. 4A shows a schematic top view of the turning operation, and FIG. 4B shows a schematic side view of the turning operation. The turning operation shown in FIG. 4 is merely an example, and can be changed as appropriate.

  As shown in FIG. 4A, the workpiece W is held at the center of the holding means 20, and the cutting tool 46 is lowered to a predetermined cutting depth while turning at a high speed around the rotation axis of the rotary spindle 42. Then, the holding means 20 is moved horizontally relative to the cutting tool 46, and creep feed type turning is started from the one end 62 side to the other end 63 side of the workpiece W by the cutting tool 46. In the creep feed type turning, the upper surface 61 of the workpiece W is cut into an arc shape by the cutting edge 52 (see FIG. 4B) of the cutting tool 46 while the workpiece W is fed in the X-axis direction.

  At this time, as shown in FIG. 4B, the arcuate surface 57 of the cutting blade 52 is brought into sliding contact with the upper surface 61 of the workpiece W, and turning is continued while the coating material 55 is peeled off from the surface 57 due to wear of the cutting blade 52. Is done. When the workpiece W is repeatedly turned and the cutting blade 52 becomes unusable due to wear, the operator confirms that the coating 55 on the surface 57 of the cutting blade 52 has been peeled off, and the coating of the cutting blade 52 as described above. The attachment angle of the cutting tool 46 is changed so that the portion where 55 remains is in contact with the upper surface 61 of the workpiece W. Thereby, the part where the cutting blade 52 is not worn hits the upper surface 61 of the workpiece W, and the turning ability of the cutting blade 52 is recovered.

  As described above, in the cutting tool 46 according to the present embodiment, the surface 57 of the arcuate cutting blade 52 is colored with the paint 55, so that the cutting blade 52 is turned when the workpiece W is turned by the cutting blade 52. The paint 55 is peeled off from the surface 57. Therefore, it is possible for the operator to easily grasp the used portion of the cutting blade 52 used for turning, and the installation angle corresponding to the used portion of the cutting blade 52 is recorded in the management ledger. Work can be omitted. Further, the unused portion of the cutting blade 52 that is not used for turning can be grasped from the portion where the paint 55 is not peeled off on the surface 57 of the cutting blade 52. Therefore, by adjusting the attachment angle of the cutting tool 46 so that the workpiece W is turned at an unused portion of the cutting blade 52, the cutting blade 52 can be effectively used to the maximum extent.

  In addition, this invention is not limited to the said embodiment, It can change and implement variously. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, the holding unit 20 is configured to suck and hold the workpiece W with a porous porous material, but is not limited to this configuration. The holding unit 20 may be configured in any manner as long as the workpiece W can be held.

  In the above-described embodiment, the turning means 40 is configured to turn the upper surface 61 of the workpiece W with the single cutting tool 46, but is not limited to this configuration. The turning means 40 may be configured to turn the upper surface 61 of the workpiece W with a plurality of tool tools 46.

  Further, in the above-described embodiment, the turning means 40 is configured to perform turning by the creep feed method on the upper surface 61 of the workpiece W, but is not limited to this configuration. The turning means 40 may be configured to perform turning on the upper surface 61 of the workpiece W by an infeed method.

  In the embodiment described above, the tool tool 46 is attached to the tool attachment part 45 so that the angle can be adjusted by screwing. However, the present invention is not limited to this configuration. The cutting tool 46 may be configured in any way as long as it is attached to the cutting tool mounting portion 45 so that the angle can be adjusted.

  In the above-described embodiment, the entire surface 57 of the cutting blade 52 of the cutting tool 46 is colored with the paint 55. However, the present invention is not limited to this configuration. The cutting blade 52 only needs to be colored with the paint 55 so that the used portion of the arc-shaped surface 57 can be specified, and if the cutting blade 52 is colored with the paint 55 in an arc shape along at least the arc-shaped surface 57. Good.

  As described above, the present invention has an effect that the operator can easily grasp the used part of the cutting blade, and particularly when the surface of the workpiece is turned by the creep feed method. This is useful for tool tools used in

DESCRIPTION OF SYMBOLS 1 Turning apparatus 20 Holding means 40 Turning means 45 Tool mounting part 46 Tool tool 51 Tool base 52 Cutting blade 55 Paint 57 Surface of cutting blade W Workpiece

Claims (1)

A tool that is mounted on the turning means in a processing apparatus comprising at least a holding means for holding a workpiece and a turning means for turning the workpiece held on the holding means,
A tool base attached to the tool attachment part of the turning means so that the angle can be adjusted, and an arcuate cutting blade formed at the tip of the tool base for turning the workpiece,
A cutting tool in which the surface of the cutting blade is colored with a paint.

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