JP2007185715A - Machining device, machining tool, and hand piece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machining device, a machining tool, and a hand piece for efficiently machining a workpiece with a simple structure. <P>SOLUTION: Instead of a conventional machining device for machining a workpiece, the machining device comprises a hand piece having a rod shape machining tool capable of machining the workpiece at its front portion, a vibrator which has a columnar shape and vibrates in the direction along the central axis of the columnar shape, and a connecting member for mechanically connecting the rear portion of the machining tool to the vibrator, wherein the axes of the front portion and the rear portion of the machining tool do not coincide with the central axis of the columnar shape portion. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a processing apparatus, a processing tool, and a hand piece for processing a workpiece. In particular, the present invention relates to a processing device, a processing tool, and a handpiece that are characterized by the structure of the processing tool, the structure of a connecting member that connects the processing tool to the handpiece, or the mounting posture of the processing tool.

Sometimes you want to machine a workpiece.
For example, when it is desired to polish the surface of the workpiece, a processing tool for spatula is used. The spatula working tool is a rod-shaped tool made of a super hard material and having a circular cross section with a sharp tip. The surface of the tool for spatula is rubbed against the surface of the workpiece. The surface of the workpiece is polished by friction,
For example, when it is desired to grind the surface of the workpiece, a grinding processing tool is used. A processing tool for grinding is made of a cemented carbide material and has a rod shape with a cutting edge at the tip. The cutting tool of the grinding tool is moved against the surface of the workpiece. The surface of the workpiece is ground.
For example, in order to strike the surface of the workpiece, a working tool for striking is held. The hitting processing tool is a rod-shaped tool made of a metal material and having a hitting portion at the tip.
For example, when a workpiece is to be polished, a polishing processing tool is used. The polishing processing tool is made of metal and has a rod shape with an abrasive fixed to the front.
A conventional processing tool is a rod-like one extending linearly.

A processing device is used to process a workpiece using a processing tool.
The processing apparatus includes a handpiece and a processing tool. Generally, a processing tool is called a tool.
The handpiece is composed of a vibrator and a connecting member. In general, the connecting member is referred to as a tool holder.
The vibrator has a columnar shape and vibrates in a direction along the central axis of the columnar shape.
For example, the vibrator is a Langevin type ultrasonic vibrator.
A Langevin type ultrasonic transducer has a disk-shaped piezoelectric element sandwiched between a front horn and a rear horn from both sides, and is tightened with a bolt that penetrates the front horn, piezoelectric element, and rear horn. Yes.
When a high frequency alternating voltage is applied to both sides of the piezoelectric element, the piezoelectric element expands and contracts at a high frequency along the central axis of the disk.

The connecting member is a member that mechanically connects the rear part of the processing tool to the front part of the vibrator.
For example, the connecting member is screwed into the end portion of the front portion of the front horn of the vibrator.
The connecting member is provided with a holding portion that holds the rear portion of the processing tool.
For example, the holding part is an insertion hole into which the rear part of the processing tool can be inserted. The set screw is screwed into the connecting member, and the tip is pressed against the side surface of the processing tool.
Further, for example, the processing tool is brazed to the connecting member at the holding portion.

In the conventional machining apparatus, the center axis of the vibrator and the axis of the machining tool are in good balance.
The center axis of the vibrator is a virtual axis that connects the centroids of the cross section perpendicular to the longitudinal direction of the cylindrical shape of the vibrator in the longitudinal direction.
The inventor is able to efficiently process a workpiece with less power by shifting the center axis of the vibrator and the axis of the processing tool or the connecting member or by decentering the center of gravity of the connecting member by an original experiment. I found. This is presumed to be because the front part of the machining tool is bent and vibrates irregularly by breaking the balance of the machining tool and the connecting member.

JP-A-8-90454

  The present invention has been devised on the basis of the above knowledge, and intends to provide a processing apparatus, a processing tool, and a handpiece for processing a workpiece efficiently with a simple structure.

  In order to achieve the above object, a processing apparatus for processing a workpiece according to the present invention includes a rod-shaped processing tool capable of processing a workpiece at a front portion, a columnar shape, and a central axis of the columnar shape. And a hand piece having a connecting member that mechanically connects a rear portion of the processing tool to the vibrator, and an axis from a front portion to a rear portion of the processing tool is the center. It was supposed not to overlap the shaft.

With the configuration of the present invention, the vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. A bar-shaped processing tool can process the workpiece at the front. A connecting member mechanically connects the rear part of the processing tool to the vibrator. The axial center from the front part to the rear part of the machining tool does not overlap the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a processing apparatus for processing a workpiece according to the present invention includes a rod-shaped processing tool capable of processing a workpiece at a front portion, a columnar shape, and a central axis of the columnar shape. And a hand piece having a connecting member that mechanically connects a rear portion of the processing tool to the vibrator, and an axis from a front portion to a rear portion of the processing tool is the center. It was assumed to be eccentric with respect to the shaft.

With the configuration of the present invention, the vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. A bar-shaped processing tool can process the workpiece at the front. A connecting member mechanically connects the rear part of the processing tool to the vibrator. An axis from the front part to the rear part of the machining tool is eccentric with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a processing apparatus for processing a workpiece according to the present invention includes a rod-shaped processing tool capable of processing a workpiece at a front portion, a columnar shape, and a central axis of the columnar shape. And a hand piece having a connecting member that mechanically connects a rear portion of the processing tool to the vibrator, and an axis from a front portion to a rear portion of the processing tool is the center. It is assumed that it is inclined with respect to the axis.

With the configuration of the present invention, the vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. A rod-shaped processing tool can shave a workpiece at the tip. A connecting member mechanically connects the rear end of the processing tool to the vibrator. The axial center from the front part to the rear part of the machining tool is inclined with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, the rear portion is mechanically connected to a vibrator having a columnar shape according to the present invention and vibrating in a direction along the central axis of the columnar shape, and the workpiece is rubbed and polished by the front portion. The machining tool was a rod-shaped tool whose front axis was inclined with respect to the rear axis.

With the configuration of the present invention, the vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. A machining tool for rubbing and polishing the workpiece at the front part is mechanically connected to the vibrator at the rear part. The front shaft center is a rod-shaped member inclined with respect to the rear shaft center.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. A coupling member that is mechanically coupled to the vibrator and is provided with a holding portion that holds the rear portion of the processing tool, and the axial center of the rear portion of the processing tool held by the holding portion is relative to the central axis It was eccentric.

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with a holding portion that mechanically couples to the vibrator and holds a rear portion of the processing tool. The axial center of the rear part of the processing tool held by the holding part is eccentric with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. A coupling member that is mechanically coupled to the vibrator and is provided with a holding portion that holds the rear portion of the processing tool, and the axial center of the rear portion of the processing tool held by the holding portion is relative to the central axis Inclined.

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with a holding portion that mechanically couples to the vibrator and holds a rear portion of the processing tool. The axial center of the rear part of the processing tool held by the holding part is inclined with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. A coupling member that is mechanically coupled to the vibrator and provided with an insertion hole for inserting a rear portion of the processing tool, and the axis of the insertion hole is eccentric with respect to the central axis .

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with an insertion hole for mechanically coupling to the vibrator and inserting a rear portion of the processing tool. The axis of the insertion hole is eccentric with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. And a connecting member that is mechanically coupled to the vibrator and provided with an insertion hole for inserting a rear portion of the processing tool, and the axis of the insertion hole is inclined with respect to the central axis. .

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with an insertion hole for mechanically coupling to the vibrator and inserting a rear portion of the processing tool. The axis of the insertion hole is inclined with respect to the central axis.
As a result, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. And a connecting member provided with a holding part that mechanically couples to the vibrator and holds the rear part of the processing tool, and the center of gravity of the connecting member is eccentric from the central axis.

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with a holding portion that mechanically couples to the vibrator and holds a rear portion of the processing tool. The center of gravity of the connecting member is eccentric from the central axis.
As a result, when the vibrator vibrates, the connecting member vibrates irregularly, and the workpiece can be processed efficiently.

  In order to achieve the above object, a handpiece for holding a rod-shaped processing tool capable of processing a workpiece according to the present invention at the tip is provided with a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape. A connecting member that is mechanically coupled to the vibrator and is provided with a holding portion that holds a rear portion of a processing tool, and is a region surrounded by a contour line of a cross section perpendicular to the central axis of the connecting member It is assumed that at least a part of the centroid is eccentric from the central axis.

With the configuration of the present invention described above, the rod-shaped processing tool can process the workpiece at the tip. A vibrator having a columnar shape vibrates in a direction along the central axis of the columnar shape. The connecting member is provided with a holding portion that mechanically couples to the vibrator and holds a rear portion of the processing tool. At least a part of the centroid of the region surrounded by the outline of the cross section perpendicular to the central axis of the connecting member is eccentric from the central axis.
As a result, when the vibrator vibrates, the connecting member vibrates irregularly, and the workpiece can be processed efficiently.

As described above, the processing device, the handpiece, and the processing tool according to the present invention have the following effects due to their configurations.
The rear part of the processing tool capable of processing the workpiece at the front part is mechanically connected to a vibrator that vibrates along a columnar central axis via a connecting member, and the axial center from the front part to the rear part of the processing tool. Does not overlap the central axis, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.
Further, the rear part of the processing tool capable of processing the workpiece at the front part is mechanically connected to a vibrator that vibrates along a columnar central axis via a connecting member, and the front part to the rear part of the processing tool are connected. Since the shaft center is eccentric with respect to the center axis, the center axis of the vibrator and the shaft center of the processing tool are shifted, and the workpiece can be processed efficiently.
Further, the rear part of the processing tool capable of processing the workpiece at the front part is mechanically connected to a vibrator that vibrates along a columnar central axis via a connecting member, and the front part to the rear part of the processing tool are connected. Since the axial center is inclined with respect to the central axis, the central axis of the vibrator and the axial center of the processing tool are shifted, and the workpiece can be processed efficiently.
In addition, it is mechanically coupled to a columnar vibrator that vibrates in a direction along the central axis, and a machining tool for rubbing and polishing a work piece at the front part has a front axis centered on the rear axis. As a result, the center axis of the vibrator deviates from the axis of the processing tool, so that the workpiece can be processed efficiently.
Further, the rear part of the machining tool capable of processing the workpiece at the front part is held by a holding part provided on a connecting member mechanically coupled to a columnar vibrator that vibrates along the central axis, and is held by the holding part. Since the axial center of the rear part of the processed tool is eccentric with respect to the central axis, the central axis of the vibrator is shifted from the axial center of the processing tool, and the workpiece can be processed efficiently.
Further, the rear part of the machining tool capable of processing the workpiece at the front part is held by a holding part provided on a connecting member mechanically coupled to a columnar vibrator that vibrates along the central axis, and is held by the holding part. Since the axial center of the rear part of the processed tool is inclined with respect to the central axis, the central axis of the vibrator and the axial center of the processing tool are shifted, and the workpiece can be processed efficiently.
Further, the rear portion of the processing tool capable of processing the workpiece at the front portion is inserted into an insertion port provided in a connecting member mechanically coupled to a columnar vibrator that vibrates along the central axis, and the shaft of the insertion hole Since the center is eccentric with respect to the center axis, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.
Further, the rear portion of the processing tool capable of processing the workpiece at the front portion is inserted into an insertion port provided in a connecting member mechanically coupled to a columnar vibrator that vibrates along the central axis, and the shaft of the insertion hole Since the center is inclined with respect to the center axis, the center axis of the vibrator and the axis of the processing tool are shifted, and the workpiece can be processed efficiently.
In addition, a processing tool that processes the workpiece at the front using a connecting member with an eccentric center of gravity is mechanically coupled to a columnar vibrator that vibrates in a direction along the central axis. The member vibrates irregularly, and the workpiece can be processed efficiently.
In addition, a machining tool for machining a workpiece at the front using a connecting member in which at least a part of the centroid of the region surrounded by the outline of the cross section perpendicular to the central axis is eccentric from the central axis is used. Since it is mechanically coupled to the columnar vibrator that vibrates in the direction along the axis, when the vibrator vibrates, the connecting member vibrates irregularly and the workpiece can be processed efficiently.
Therefore, it is possible to provide a processing apparatus, a processing tool, and a hand piece for processing a workpiece efficiently with a simple structure.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall view of a processing apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view of the connecting member according to the first embodiment of the present invention. FIG. 3 is a side sectional view of the processing apparatus according to the first embodiment of the present invention. FIG. 4 is a side sectional view of a processing apparatus according to the second embodiment of the present invention. FIG. 5 is a side sectional view of a processing apparatus according to the third embodiment of the present invention. FIG. 6 is a side sectional view of a processing apparatus according to the fourth embodiment of the present invention.

The processing apparatus 100 is an apparatus for processing a workpiece.
For example, the processing apparatus 100 polishes the surface of the workpiece. Further, the processing apparatus 100 polishes the surface of the workpiece. Moreover, the processing apparatus 100 grinds the surface of a workpiece. Moreover, the processing apparatus 100 strikes the surface of the workpiece.

  The processing apparatus 100 includes a processing tool 10, a hand piece 20, and an oscillator 30.

The processing tool 10 is a rod-shaped tool that can process a workpiece at the front part.
FIG. 15 shows a processing tool including the processing tool of the present invention.
When the processing apparatus 100 polishes the surface of the workpiece, the processing tools 10a and 10b are columnar tools whose tips are sunk. For example, the processing tool 10a is made of a super hard material. The processing tool 10b is made of tool steel. The circumference of the front part of the processing tools 10a and 10b rubs and polishes the surface of the workpiece.
When the processing apparatus 100 grinds a workpiece, the processing tools 10c and 10d are rod-shaped tools having a cutting edge at the tip. Cutting edges at the tips of the processing tools 10c and 10d cut the surface of the workpiece.
When the processing apparatus 100 polishes the surface of the workpiece, the processing tools 10e and 10f are rod-shaped tools with an abrasive fixed to the front. For example, the front portion of the processing tool has a spatula shape that is thinner than the width, and the diamond powder is fixed by electroforming or the like. Abrasives on the surfaces of the processing tools 10e and 10f polish the surface of the workpiece.
When the processing apparatus 100 hits the workpiece, the processing tools 10g and 10h are rod-shaped tools provided with hitting surfaces at the tips. The hitting surfaces at the tips of the processing tools 10g and 10h hit the surface of the workpiece.
In the following, unless specifically described, the structure of the processing apparatus 100 will be described by taking as an example a case where the surface of the workpiece is rubbed and polished.

The processing tool 10 has a columnar shape and a rear portion thereof is mechanically coupled to a front portion of a vibrator that vibrates in a direction along a central axis of the columnar shape, and the workpiece is processed at the front portion.
The front axis L2 may coincide with the rear axis L1. For example, the processing tools 10a, 10c, 10e, and 10g are straight rod-shaped tools.
The front axis L2 may be eccentric with respect to the rear axis L1.
The front axis L2 may be inclined with respect to the rear axis L1. For example, the processing tools 10b, 10d, 10f, and 10h are rod-shaped tools that are bent at one place from the front part.

The handpiece 20 is a device that holds a rod-shaped processing tool 10 that can process a workpiece at the tip. The handpiece 20 includes a vibrator 21, a connecting member 22, a case 23, a processing tool cover 24, and a cable 25.
The handpiece 20 may be held and operated. The handpiece may be fixed to the device for operation.

The vibrator 21 has a columnar shape and vibrates in a direction along the central axis of the columnar shape.
For example, the vibrator 21 includes a front horn 21a, a piezoelectric element 21b, a rear horn 21c, and a fastening bolt 21d.
For example, the two piezoelectric elements 21b are sandwiched between the front horn 21a and the rear horn 21c, are arranged in the longitudinal direction, and are tightened with a tightening bolt 21d. The piezoelectric element 21b has a disk shape. One surface and the other surface of the two piezoelectric elements 21b are electrically insulated from each other. When an alternating voltage is applied to one surface and the other surface of the piezoelectric element 21b, the piezoelectric element 21b expands and contracts by a slight dimension in the thickness direction according to the alternating frequency.
For example, when an alternating voltage having a frequency of 20 KHz is applied to the piezoelectric element 21b, the vibrator 21 vibrates in a mode that expands and contracts in the central axis direction at a frequency of 20 HKz. Such a vibrator is called a Langevin type ultrasonic vibrator.
FIG. 17 shows a vibration mode of a processing apparatus using a Langevin type ultrasonic transducer. The front end of the processing tool 10 and the rear end of the tightening bolt 21d form a vibration belly.

  The front horn 21a is a metal member in which a female screw is provided at one end and the other end is applied to one surface of the piezoelectric element 21b. One end portion is smaller than the other end portion, and has a cylindrical shape that smoothly connects one end portion and the other end portion.

The piezoelectric element 21b is an element that generates distortion according to a voltage when a voltage is applied. .
For example, the piezoelectric element 21b is a disk-shaped element made of piezoelectric ceramics.
Electrodes are provided on both surfaces of the piezoelectric element 21b. In general, a plurality of piezoelectric elements are arranged in series. When an alternating voltage is applied to the electrodes, the piezoelectric element 21b expands and contracts in the thickness direction and vibrates.

The rear horn 21c is a columnar member that hits one end against the other surface of the piezoelectric element 21b.
When the dimensions and weight of the front horn 21a, the piezoelectric element 21b, and the rear horn 21c are appropriately selected, the vibrator can be vibrated efficiently with little energy loss.

The fastening bolt 21d is a bolt that passes through the rear horn 21c and the piezoelectric element 21b and is screwed into the front horn 21a.
When the fastening bolt 21d is rotated and screwed, the piezoelectric element 21b can be clamped with a desired force.

  The connecting member 22 is a member that mechanically connects the rear portion of the processing tool 10 to the front portion of the vibrator 21.

Below, the connection member which concerns on the 1st Embodiment of this invention is demonstrated based on a figure.
FIG. 2 shows the connecting member 22 according to the first embodiment.
The connecting member 22 according to the first embodiment is a member that is mechanically coupled to the vibrator and holds the rear portion of the processing tool. The connecting member main body portion 22a, the holding portion 22b, the connecting screw portion 22c, and the bolt 22d. Composed.
The connecting member main body portion 22a is a columnar metal block, and a holding portion 22b that holds the preferred tool 10 is provided along the direction of the central axis of the column.
The holding part 22 b is a part that holds the rear part of the processing tool 10.
FIG. 2 shows an example of the holding unit 22b.
The holding portion 22b is a hole formed in the front portion of the connecting member main body portion 22a along the direction of the central axis, and the holding hole is cut to the rear from the front end portion of the connecting member main body portion 22a. It is comprised with the slit-shaped notch provided.
The coupling screw portion 22 c is a male screw for mechanically coupling the coupling member 22 to the vibrator 21. The coupling screw portion 22c protrudes rearward from the rear portion of the connecting member main body portion 22a. The coupling screw portion 22c is detachably screwed into the female screw of the front horn 21a.
The bolt 22d is a screw for fixing the rear part of the processing tool 10 inserted into the holding part 22b. The bolt 22d passes through one part of the connecting member main body part 22a separated by the notch part of the holding part 22b, and is screwed into the female screw part provided in the other part. When the bolt 22d is screwed in, the rear part of the processing tool 10 inserted into the holding part 22b is fixed to the holding part 22b.

The axial center L1 of the rear part of the processing tool 10 held by the connecting member 22 may coincide with the axial center L4 of the coupling screw part 22c.
Moreover, the axial center L1 of the rear part of the processing tool 10 held by the connecting member 22 may be eccentric with respect to the axial center L4 of the coupling screw part 22c. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is parallel to the axis L4 with a distance of about 1 mm.
Moreover, the shaft center L1 of the rear part of the processing tool 10 held by the connecting member 22 may be inclined with respect to the shaft center L4 of the coupling screw part 22c. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is inclined to about 7 to 8 degrees with respect to the axis L4, and the processing tool 10 is about 2 mm from the center of the tip of the connecting member main body 22a. Protruding from an eccentric position.

The case 23 is a member that covers and fixes the vibrator 21.
The case 23 supports a portion that becomes a vibration node when the vibrator 21 vibrates in a mode in which the vibrator 21 expands and contracts along the central axis L3.
The front end of the front horn 21 a of the vibrator 21 is exposed from the opening in front of the case 23.

The processing tool cover 24 is a member that covers the front portion of the vibrator 21 and the connecting member 22.
The processing tool cover 24 can be screwed into the front opening of the case 23.
The front end of the connecting member 22 is exposed from the opening in front of the processing tool cover 24.

The cable 25 is an electric wire that supplies a drive voltage from an oscillator 30 described later to the vibrator 21.
The drive voltage supplied by the cable 25 is supplied to both surfaces of the piezoelectric element 21b.
One end of the cable is fixed to the case 23, and a plug is provided at the other end of the cable. The plug can be connected to the oscillator 30.

The oscillator 30 is an electric device that generates a driving voltage to be supplied to the handpiece 20.
The oscillator 30 includes an oscillator main body 31, a connector 32, a power switch 33, an output adjustment knob 34, and a lamp 35.
The oscillator main body 31 incorporates an electric circuit that generates a voltage alternating at a high frequency. The electric circuit is adjusted so that the vibrator 21 can be vibrated efficiently.
In the connector 32, the plug of the cable 25 is detachably coupled, and is electrically energized at the time of mounting.
The power switch 33 is a switch that turns the oscillator 30 on and off.
The output adjustment knob 34 is a knob that can select the output of the drive voltage.
The lamp 35 is a display that indicates the state of the oscillator 30. For example, green light is emitted when the vibration of the vibrator 21 is normal, and red light is emitted when the vibration of the vibrator 21 is abnormal.

  Next, the structure of the various processing apparatuses 100 combining various variations of the connecting member according to the first embodiment and variations of the processing tool will be described with reference to the drawings.

FIG. 3 shows a processing apparatus according to the first embodiment of the present invention.
The axial center L1 of the rear part of the processing tool held by the holding part 22b of the connecting member 22 coincides with the central axis L3.
The front axis L2 of the processing tool 10 is inclined with respect to the rear axis L1. When the rear part of the processing tool 10 is held by the holding part 22b of the connecting member 22, the axis L1 of the rear part of the processing tool 10 coincides with the axis L4 of the coupling screw part 22c of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held by the holding portion 22b of the connecting member 22 coupled to the vibrator 21, the front axis L2 and the center axis L3 of the machining tool 10 do not coincide with each other.
That is, the front axis L2 of the processing tool 10 is inclined with respect to the central axis L3.

FIG. 4 shows a processing apparatus according to the second embodiment of the present invention.
The shaft center L1 of the rear part of the machining tool held by the holding part 22b of the connecting member 22 is eccentric with respect to the central axis L3.
The front axis L2 of the machining tool coincides with the rear axis L1. When the rear portion of the processing tool 10 is held by the holding portion 22b of the connecting member 22, the shaft center L1 of the rear portion of the processing tool 10 is eccentric with respect to the shaft center L4 of the coupling screw portion 22c of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held by the holding portion 22b of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front portion to the rear portion of the machining tool 10 do not overlap the central axis L3. . That is, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 are eccentric with respect to the central axis L3. That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are parallel to the central axis L3 with a predetermined interval.

FIG. 5 shows a processing apparatus according to the third embodiment of the present invention.
The rear shaft center L1 held by the holding portion 22b of the connecting member 22 is inclined with respect to the central axis L3.
The front axis L2 of the machining tool coincides with the rear axis L1. When the rear part of the processing tool 10 is held by the holding part 22b of the connecting member 22, the axis L1 of the rear part of the processing tool 10 is inclined with respect to the axis L4 of the coupling screw part 22c of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held by the holding portion 22b of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 intersect at one place. Does not overlap with the central axis L3. That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are inclined with respect to the central axis L3.

FIG. 6 shows a processing apparatus according to the fourth embodiment of the present invention.
The shaft center L1 of the rear part of the machining tool held by the holding part 22b of the connecting member 22 is eccentric with respect to the central axis L3.
The front axis L2 of the machining tool is inclined with respect to the rear axis L1. When the rear portion of the processing tool 10 is held by the holding portion 22b of the connecting member 22, the shaft center L1 of the rear portion of the processing tool 10 is eccentric with respect to the shaft center L4 of the coupling screw portion 22c of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held by the holding portion 22b of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front portion to the rear portion of the machining tool 10 do not overlap the central axis L3. . That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are partially eccentric to the central axis L3 and partially inclined with respect to the central axis L3.

Next, the structure of the connecting member 22 according to the second embodiment will be described with reference to the drawings.
FIG. 7 shows the connecting member 22 according to the second embodiment.
The connecting member connecting member 22 according to the second embodiment is a member that mechanically couples to the vibrator and holds the rear portion of the processing tool, and includes a connecting member main body portion 22e, an insertion hole 22f, a connecting screw portion 22g, and a push bolt. 22h.
The connecting member main body 22e is a columnar metal block, and an insertion hole 22f is provided along the central axis of the column.
The insertion hole 22f is a portion that holds the rear portion of the processing tool 10.
FIG. 7 shows an example of the insertion hole 22f.
22 f of insertion holes are comprised by the hole vacated in the front part of the connection member 22 along the longitudinal direction. The diameter of the hole matches the diameter of the rear part of the processing tool 10.
The coupling screw portion 22g is a male screw for mechanically coupling the coupling member 22 to the vibrator 21. The coupling screw portion 2g protrudes rearward from the rear portion of the connecting member main body portion 22e. The coupling screw portion 2g is detachably screwed into the female screw of the front horn 21a.
The push bolt 22h is a screw for fixing the rear part of the processing tool 10 inserted into the insertion hole 22f. The push bolt 22 h is screwed into a female screw portion provided in the connecting member 22. When the push bolt 22h is screwed in, the rear part of the processing tool 10 inserted into the insertion hole 22f is fixed.

The axial center L1 of the rear part of the processing tool 10 held by the connecting member 22 may coincide with the axial center L4 of the coupling screw part 22g.
Further, the shaft center L1 of the rear portion of the processing tool 10 held by the connecting member 22 may be eccentric with respect to the shaft center L4 of the coupling screw portion 22g. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is parallel to the axis L4 with a distance of about 1 mm.
Moreover, the shaft center L1 of the rear part of the processing tool 10 held by the connecting member 22 may be inclined with respect to the shaft center L4 of the coupling screw part 22g. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is inclined by about 7 to 8 degrees with respect to the axis L4, and the processing tool 10 is about 2 mm from the center of the tip of the connecting member main body 22e. Protruding from an eccentric position.

    Next, the structure of various processing apparatuses 100 in which various variations of the connecting member according to the second embodiment and variations of the processing tool are combined will be described with reference to the drawings.

  FIG. 8 is a side sectional view of a processing apparatus according to the fifth embodiment of the present invention. FIG. 9 is a side sectional view of a processing apparatus according to the sixth embodiment of the present invention. FIG. 10 is a side sectional view of a processing apparatus according to the seventh embodiment of the present invention. FIG. 11 is a side sectional view of a processing apparatus according to the eighth embodiment of the present invention.

FIG. 8 shows a processing apparatus according to the fifth embodiment of the present invention.
The axis L1 of the insertion hole 22f of the connecting member 22 coincides with the central axis L3.
The front axis L2 of the processing tool 10 is inclined with respect to the rear axis L1. The axis L1 of the insertion hole 22f of the connecting member 22 and the axis L4 of the coupling screw portion 22g of the connecting member 22 are coincident with each other. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held in the insertion hole 22f of the connecting member 22 coupled to the vibrator 21, the front axis L2 of the machining tool 10 does not coincide with the central axis.
That is, the front axis L2 of the processing tool 10 is inclined with respect to the central axis L3.

FIG. 9 shows a processing apparatus according to the sixth embodiment of the present invention.
The axis L1 of the insertion hole 22f is eccentric with respect to the center axis L3.
Therefore, the axial center of the rear part of the processing tool 10 inserted into the insertion hole 22f is eccentric with respect to the central axis L3.
The front axis L2 of the machining tool coincides with the rear axis L1. The axis of the insertion hole 22f of the connecting member 22 is eccentric with respect to the axis L4 of the coupling screw portion 22g of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held in the insertion hole 11f of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 do not overlap the central axis. That is, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 are eccentric with respect to the central axis. That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are parallel to the central axis L3 with a predetermined interval.

FIG. 10 shows a processing apparatus according to the seventh embodiment of the present invention.
The axis L1 of the insertion hole 22f is inclined with respect to the central axis.
Therefore, the axial center L1 of the rear part of the processing tool inserted into the insertion hole 22f of the connecting member 22 is inclined with respect to the central axis L3.
The front axis L2 of the machining tool coincides with the rear axis L1. The axis L1 of the insertion hole 22f is inclined with respect to the axis L4 of the coupling screw portion 22g of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held in the insertion hole 22f of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 do not overlap the central axis L3. . That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are inclined with respect to the central axis L3.

FIG. 11 shows a processing apparatus according to the eighth embodiment of the present invention.
The axis L1 of the insertion hole 22f of the connecting member 22 is eccentric with respect to the central axis L3.
The front axis L2 of the machining tool is inclined with respect to the rear axis L1. The axis L1 of the insertion hole 22f of the connecting member 22 is eccentric with respect to the axis L4 of the coupling screw portion 22g of the connecting member 22. The center axis L3 of the vibrator 21 and the axis L4 of the female screw of the front horn 21a coincide.
As a result, when the machining tool 10 is held in the insertion hole 22f of the connecting member 22 coupled to the vibrator 21, the axial centers L2 and L1 from the front part to the rear part of the machining tool 10 do not overlap the central axis. That is, the axial centers L2 and L1 from the front part to the rear part of the processing tool 10 are partly transformed into the central axis L3 and partly inclined with respect to the central axis L3.

Next, the structure of the connecting member 22 according to the third embodiment of the present invention will be described with reference to the drawings.
FIG. 12 shows a connecting member 22 according to the third embodiment. FIG. 13 is a side cross-sectional view of a processing apparatus according to the ninth embodiment of the present invention. FIG. 14 is a side sectional view of a processing apparatus according to the tenth embodiment of the present invention.
The connecting member 22 according to the third embodiment is a member that is mechanically coupled to the front portion of the vibrator and holds the rear portion of the processing tool, and includes a connecting member main body portion 22i, a holding portion 22j, a connecting screw portion 22k, and a bolt. 22l.
The center of gravity of the connecting member 22 is eccentric from the central axis L3.
The center of gravity of the connecting member 22 is substantially eccentric from the central axis L3.
Substantially means that the center of gravity of the connecting member is eccentric from the central axis L3 as a result of the connecting member having an asymmetrical profile with the central axis L3 as the target axis.
Further, “substantially” means the degree to which the vibration of the machining tool becomes irregular as a result of the center of gravity of the connecting member 22 being eccentric from the central axis L3. For example, the center of gravity of the connecting member 22 is decentered to the extent that it exceeds ½ of the width of the machining tool from the central axis L3.
For example, at least a part of the centroid of the region surrounded by the outline of the cross section orthogonal to the central axis L3 of the connecting member 22 may be eccentric from the central axis L3. As a result, the center of gravity of the connecting member 22 is eccentric from the central axis L3.
The connecting member main body 22i is a columnar metal block, and a holding portion 22j is provided along the longitudinal direction of the column. For example, the connecting member main body portion 22i is a metal block having a concave portion in which one of the four side surfaces of the columnar shape has been greatly removed. As a result, the center of gravity of the connecting member 22 is eccentric from the central axis L3. Further, at least a part of the centroid of the region surrounded by the outline of the cross section orthogonal to the central axis L3 of the connecting member 22 is eccentric from the central axis L3.
The holding portion 22j is a portion that holds the rear portion of the processing tool 10.
FIG. 12 shows an example of the holding unit 22j.
The holding part 22j is provided from the front end face of the connecting member main body part 22i to the rear by cutting the holding hole which is a hole opened along the longitudinal direction in the front part of the connecting member main body part 22i and the holding hole. It consists of slit-shaped notches.
The coupling screw portion 22k is a male screw for mechanically coupling the coupling member 22 to the vibrator 21. The coupling screw portion 22k protrudes rearward from the rear portion of the connecting member main body portion 22i and is screwed into the female screw of the front horn 21a.
The bolt 22l is a screw for fixing the rear portion of the processing tool 10 inserted into the holding portion 22j. The bolt 22l passes through one part of the connecting member main body part 22i separated by the notch part of the holding part 22j and is screwed into the female thread part provided in the other part. When the bolt 22l is screwed in, the rear part of the processing tool 10 inserted into the holding part 22j is fixed to the holding part 22j.

The axial center L1 of the rear part of the processing tool 10 held by the connecting member 22 may overlap the axial center L4 of the coupling screw part 22k.
FIG. 13 shows a machining apparatus using the connecting member 22 in which the rear axis L1 of the machining tool 10 overlaps the axis L4 of the coupling screw portion 22k.
Further, the shaft center L1 of the rear portion of the processing tool 10 held by the connecting member 22 may be eccentric with respect to the shaft center L4 of the coupling screw portion 22k. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is parallel to the axis L4 with a distance of about 1 mm.
FIG. 14 shows a machining apparatus using the connecting member 22 in which the rear axis L1 of the machining tool 10 is eccentric with respect to the axis L4 of the coupling screw portion 22k.
Further, the shaft center L1 of the rear portion of the processing tool 10 held by the connecting member 22 may be inclined with respect to the shaft center L4 of the coupling screw portion 22k. For example, when the processing tool 10 has a rod shape with a diameter of 2 mm, the axis L1 is inclined to about 7 to 8 degrees with respect to the axis L4, and the processing tool 10 is about 2 mm from the center of the tip of the connecting member main body 22i. Protruding from an eccentric position.

The operation of the machining tool according to the embodiment of the present invention will be described.
When a workpiece is machined using a machining apparatus according to an embodiment of the present invention, vibration is generated using a connecting member in which the axis of a conventional straight machining tool is aligned with the central axis and the center of gravity is aligned with the central axis. Processing can be performed more efficiently than when a processing tool fixed to the child is used.
For example, it is possible to process with the same efficiency with a small output.
Further, it can be processed with better efficiency at the same output. That is, equivalent processing can be performed in a short time.
For example, the following effects are exhibited.
Increase cutting (polishing) speed.
A large area can be processed (polished) at once.
It can be used for workpieces freely.
In addition, efficiency, workability, usability, etc. are improved.

For example, an operation when the connecting member according to the first embodiment is used will be described.
When the machining tool is mounted eccentrically or tilted, the front portion of the machining tool vibrates in a direction that is strongly proportional to the eccentric dimension and the tilting angle and perpendicular to the central axis, so that the machining efficiency is improved.
In addition, since the holding part can firmly fix the machining tool to decenter the machining tool axis, the vibration of the vibrator is directly transmitted to the machining tool, and the vibration direction of the vibrator and the front part of the machining tool vibrate. The direction matches well.
In addition, the tilt angle can be easily adjusted by cutting the slit obliquely to tilt the axis of the machining tool.
In particular, as compared with the connection member according to the second embodiment, the holding portion holds the processing tool firmly, so that the vibration characteristics of the processing tool are stable, the repetition characteristics are stable, and the long-term use is well endured.

For example, the operation when the connecting member according to the second embodiment is used will be described.
When the machining tool is mounted eccentrically or tilted, the front portion of the machining tool vibrates in a direction that is strongly proportional to the eccentric dimension and the tilting angle and perpendicular to the central axis, so that the machining efficiency is improved.

For example, the operation when the connecting member according to the third embodiment is used will be described.
Since one front part of the part divided by the slit of the holding part has a shape that is deeply cut, the vibration direction of the front part of the processing tool changes corresponding to the cutting depth.
For example, when the cutting depth is increased, the vibration direction of the front portion of the machining tool vibrates more strongly in the direction in which the central axes intersect.

For example, when machining is performed using the machining tools shown in 10b, 10d, 10f, and 10h in FIG. 15, the vibration direction of the front portion of the machining tool can be changed, and the machining efficiency is improved.
For example, when the machining is performed with the shape shown in 10a, 10c, 10e, and 10g of FIG. It has good vibration transmission characteristics, generates little heat even when output is increased, withstands long-term use, wears little, and has good durability.
For example, when a processing tool made of high-hardness steel such as high-speed steel or cemented carbide is used, vibration transmission characteristics are good and durability is several tens of times higher.

Further, when a workpiece is machined using the machining tool according to the embodiment of the present invention, the machining efficiency changes depending on the posture in which the machining tool is applied to the workpiece.
An example of this will be described with reference to the drawings.
FIG. 16 shows a state in which the workpiece is machined using the machining tool shown in FIG. 9 as viewed from the front.
The machining efficiency is best when machining is performed in the posture shown in FIG. Accordingly, when it is desired to perform deep and rapid machining, machining is performed in this posture.
When machining with the posture of (A), in addition to vibrations moving back and forth in the direction along the central axis, the front part of the machining tool vibrates in a direction slightly inclined with respect to the central axis. When viewed from the horizontal direction on the processing surface, the front part of the processing tool vibrates to draw a rhombus trajectory, and deepens the work piece with such strength that it can be processed with good cutting performance. That is, processing with the same strength can be performed with less output. In addition, with the same output, processing with better efficiency and good machinability can be performed.

When processing is performed in the posture shown in FIG. 16B, the processing efficiency is good next to the posture shown in FIG. Therefore, when it is desired to perform wide and fast machining, machining is performed in this posture.
When machining in the position of (B), the front part of the machining tool vibrates in the horizontal direction on the machining surface in addition to the vibrations moving back and forth in the direction along the central axis, and the front part is a rhombus when viewed from above. It vibrates by drawing the trajectory of and touches a large area so as to slide on the surface of the workpiece.
When processing a workpiece using a conventional processing device, the surface of the workpiece that vibrates back and forth in the direction along the central axis is applied to the surface of the workpiece, The vertical streak made at the front of the machining tool is noticeable. Compared with this, the front part of the processing tool has a wide contact surface and performs a smooth process with a smooth vibration of a flat shape in which traces of vertical stripes are relaxed.

When machining is performed in the posture of (C) in FIG. 16, the machining efficiency is good next to the posture of (B). Accordingly, when it is desired to perform weak and soft processing, the processing is performed in this posture.
When machining is performed in the posture of (C), the front part of the machining tool swings slightly obliquely in a direction away from the machining surface in addition to vibrations moving back and forth in the direction along the central axis. The front part of the machining tool vibrates in a rhombus-like locus, and strong vibrations such as flare escape in the direction away from the machining surface, so the workpiece can be machined by soft vibrations.

Accordingly, holding the band piece in the hand and processing while changing the posture of the processing tool and the workpiece, the posture is changed between the postures of (A), (B), (C) in FIG. By changing the vibration direction with respect to the processing surface of the workpiece, the workpiece can be processed as desired.
The same applies to the case of using a machining tool in which the front axis and the rear axis are inclined.

Further, when a workpiece is machined using the machining apparatus shown in FIGS. 13 and 14, the efficiency is higher than when a machining tool fixed to a vibrator using a connecting member whose center of gravity coincides with the central axis is used. It can be processed well.
For example, when a workpiece is machined using the machining tool shown in FIG. 13, the sensation is doubled compared to the case of using a machining tool fixed to a vibrator using a connecting member whose center of gravity coincides with the central axis. Efficiency increases to some extent. For example, when the vibrator is driven with an equivalent output, the working time is reduced by 50% or more.
Further, when the workpiece is processed using the processing apparatus shown in FIG. 14, the efficiency is further improved as compared with the case where the processing apparatus shown in FIG. 13 is used.

When a machining tool having a shape in which the front axis and the rear axis are inclined is coupled to the vibrator using a coupling member that matches the rear axis and the central axis of the machining tool, the above-described effect can be obtained. it can.
Further, the machining tool having a shape in which the front axis and the rear axis are inclined, the axis of the machining tool held in the holding part by the connecting member of the first embodiment is eccentric or inclined, When the machining tool held in the holding portion by the coupling member of the second embodiment is eccentric or inclined, or the coupling member of the third embodiment is used for coupling to the vibrator, the above action is achieved. You can play more strongly.
However, it is difficult for cemented carbide machining tools to have a shape in which the front axis and the rear axis are inclined, and the front axis and the rear axis are generally the same. I'm doing it. Therefore, a machining tool made of cemented carbide with the front axis and the rear axis coincided with each other, the axis of the machining tool held by the holding part by the connecting member of the first embodiment is eccentric or inclined. If the axis of the machining tool held in the holding portion by the connecting member of the second embodiment is eccentric or inclined, or if connected to the vibrator using the connecting member of the third embodiment, There is an effect.

In order to connect a processing tool made of a slightly soft material, such as steel, to the vibrator, when the connecting member according to the second embodiment is used, the tip of the push bolt 22h is connected to the processing tool. The side surface is difficult to insert and the processing tool is strongly connected to the vibrator.
To connect a processing tool made of a hard material, which is difficult to bend, such as a cemented carbide, to the vibrator, when the connecting member according to the first embodiment and the third embodiment is used, the holding portion Holds the rear part of the processing tool firmly, and the processing tool is strongly connected to the vibrator.

If the processing apparatus, the handpiece, and the processing tool for processing the workpiece according to the above-described embodiment are used, the following effects are exhibited.
The rear part of the machining tool 10 capable of machining the workpiece at the front part is mechanically coupled to the front end face of the vibrator 21 that vibrates along the columnar central axis via the coupling member 22. Since the axis does not overlap the center axis, the center axis L3 of the vibrator is displaced from the axis of the machining tool, and the workpiece can be machined with less power, and the workpiece can be machined in a short time.
In addition, the rear part of the processing tool 10 capable of processing the workpiece at the front part is mechanically connected to the front end face of the vibrator 21 that vibrates along the columnar central axis via the connecting member 22. Since the center axis of 10 is decentered with respect to the center axis, the center axis of the vibrator 21 and the axis of the machining tool 10 are displaced, so that the workpiece can be machined with less power, and the workpiece can be removed in a short time. Can be processed.
In addition, the rear part of the processing tool 10 capable of processing the workpiece at the front part is mechanically connected to the front end face of the vibrator 21 that vibrates along the columnar central axis via the connecting member 22. Since the center axis of 10 is inclined with respect to the center axis L3, the center axis of the vibrator 21 and the axis of the processing tool 10 are displaced, so that the workpiece can be processed with less power and the workpiece can be processed in a short time. Can be processed.

Also, a machining tool for machining the workpiece at the front is mechanically coupled to the front end face of the columnar vibrator that vibrates in the direction along the central axis, and the front axis is aligned with the rear axis. Since it is in the shape of a bar inclined with respect to the center axis L3 of the vibrator 21 and the axis of the machining tool, the workpiece can be machined with less power, and the workpiece can be machined in a short time.
In addition, a machining tool for rubbing and polishing the workpiece at the front part is mechanically coupled to the front end face of a columnar vibrator that vibrates in a direction along the central axis, and the front axis is the rear axis. Since it has a rod-like shape inclined with respect to the center, the center axis L3 of the vibrator 21 and the axis of the processing tool are displaced, so that the workpiece can be processed with less power and the workpiece can be processed in a short time. it can.

In addition, the rear part of the processing tool capable of processing the workpiece at the front part is held by a holding part provided on a connecting member mechanically coupled to the front end face of the columnar vibrator that vibrates along the central axis, Since the axial center of the rear part of the processing tool 10 held by the holding part is eccentric with respect to the central axis, the central axis of the vibrator and the axial center of the processing tool are shifted, and the workpiece can be processed with less power. In addition, the workpiece can be processed in a short time.
In addition, the rear part of the processing tool 10 capable of processing the workpiece at the front part is provided on a holding part provided on the connecting member 22 mechanically coupled to the front end face of the columnar vibrator 21 that vibrates along the central axis. Since the axial center of the rear part of the machining tool 10 held by the holding part is inclined with respect to the central axis, the central axis of the vibrator and the axial axis of the machining tool are shifted, and the workpiece can be moved with less power. The workpiece can be processed and the workpiece can be processed in a short time.
Further, the rear portion of the processing tool 10 capable of processing the workpiece at the front portion is inserted into an insertion port provided in the connecting member 22 mechanically coupled to the front end face of the columnar vibrator 21 that vibrates along the central axis. Since the axis of the insertion hole is eccentric with respect to the center axis L3, the center axis of the vibrator and the axis of the machining tool are displaced, and the workpiece can be machined with less power. It can be processed in a short time.
Further, the rear portion of the processing tool 10 capable of processing the workpiece at the front portion is inserted into an insertion port provided in the connecting member 22 mechanically coupled to the front end face of the columnar vibrator 21 that vibrates along the central axis. Since the axis of the insertion hole is inclined with respect to the center axis, the center axis L3 of the vibrator 21 and the axis of the processing tool 10 are displaced, and the workpiece can be processed with less power. It can process things in a short time.

Further, the columnar vibrator 21 that vibrates in the direction along the central axis of the processing tool 10 that processes the workpiece at the front using the connecting member 22 whose center of gravity is eccentric to such an extent that the processing tool vibrates irregularly. Since it is mechanically coupled to the front end face, when the vibrator 21 vibrates, the connecting member vibrates irregularly, so that the workpiece can be processed with a small amount of power, and the workpiece can be processed in a short time.
In addition, a machining tool 10 for machining a workpiece at the front part by using a connecting member 22 in which at least a part of the centroid of the region surrounded by the outline of the cross section orthogonal to the central axis is eccentric from the central axis L3 is provided. Since it is mechanically coupled to the front end face of the columnar vibrator 21 that vibrates in the direction along the central axis, when the vibrator 21 vibrates, the connecting member 22 vibrates irregularly and is processed with less power. The workpiece can be processed and the workpiece can be processed in a short time.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the invention.
Although the example in which the processing tool and the connecting member are separate parts has been described, the present invention is not limited thereto, and the processing tool and the connecting member may be integrated.
Although the example in which the connecting member and the vibrator are separate members has been described, the present invention is not limited to this, and the connecting member and the seismic intensity marrow may be integrated.
The connecting member whose center of gravity is eccentric from the central axis has been described in the example having the holding portion similar to the connecting portion of the first embodiment, but is not limited thereto, for example, the connecting member of the second embodiment It is good also as what has the same insertion hole.

1 is an overall view of a processing apparatus according to an embodiment of the present invention. It is a perspective view of the connection member concerning a 1st embodiment of the present invention. It is side surface sectional drawing of the processing apparatus which concerns on the 1st Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 2nd Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 3rd Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 4th Embodiment of this invention. It is a perspective view of the connection member concerning a 2nd embodiment of the present invention. It is side surface sectional drawing of the processing apparatus which concerns on the 5th Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 6th Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 7th Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 8th Embodiment of this invention. It is a perspective view of the connection member concerning a 3rd embodiment of the present invention. It is side surface sectional drawing of the processing apparatus which concerns on the 9th Embodiment of this invention. It is side surface sectional drawing of the processing apparatus which concerns on the 10th Embodiment of this invention. It is a side view of the processing tool which concerns on embodiment of this invention. It is an effect | action figure of the processing apparatus which concerns on embodiment of this invention. It is a vibration mode figure of the processing device concerning the embodiment of the present invention.

Explanation of symbols

L1 Axis center (at the rear of the machining tool) L2 Axis center at the front of the machining tool L3 Center axis of the vibrator L4 (Axis of the coupling thread of the connecting member) Axis 100 Processing device 10 Processing tool 20 Handpiece 21 vibrator 21a front horn 21b piezoelectric element 21c rear horn 21d tightening bolt 22 connecting member 22a connecting member main body 22b holding portion 22c coupling screw 22d bolt 22e coupling member 22f insertion hole 22g coupling screw 22h push bolt 22i coupling member main Part 22j holding part 22k coupling screw part 22l bolt 23 case 24 machining tool cover 25 cable 30 oscillator 31 oscillator body 32 connector 33 power switch 34 output adjustment knob 35 lamp

Claims (10)

A processing device for processing a workpiece,
A rod-shaped processing tool that can process the workpiece at the front,
A handpiece having a columnar shape and a vibrator that vibrates in a direction along a central axis of the columnar shape and a connecting member that mechanically connects a rear portion of the processing tool to the vibrator;
With
The axial center from the front part to the rear part of the processing tool does not overlap the central axis,
A processing apparatus characterized by that. A processing device for processing a workpiece,
A rod-shaped processing tool that can process the workpiece at the front,
A handpiece having a columnar shape and a vibrator that vibrates in a direction along a central axis of the columnar shape and a connecting member that mechanically connects a rear portion of the processing tool to the vibrator;
With
The axial center from the front part to the rear part of the processing tool is eccentric with respect to the central axis,
A processing apparatus characterized by that. A processing device for processing a workpiece,
A rod-shaped processing tool that can process the workpiece at the front,
A handpiece having a columnar shape and a vibrator that vibrates in a direction along a central axis of the columnar shape and a connecting member that mechanically connects a rear portion of the processing tool to the vibrator;
With
The axial center from the front part to the rear part of the processing tool is inclined with respect to the central axis,
A processing apparatus characterized by that. A machining tool for mechanically connecting a rear portion to a vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape, and rubbing and polishing a workpiece at the front portion,
The front axis is tilted with respect to the rear axis,
A processing tool characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape;
A connecting member that is mechanically coupled to the vibrator and is provided with a holding portion that holds a rear portion of the processing tool;
With
The axial center of the rear part of the processing tool held by the holding part is eccentric with respect to the central axis,
Handpiece characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape;
A connecting member that is mechanically coupled to the vibrator and is provided with a holding portion that holds a rear portion of the processing tool;
With
The axial center of the rear part of the processing tool held by the holding part is inclined with respect to the central axis,
Handpiece characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape;
A coupling member mechanically coupled to the vibrator and provided with an insertion hole for inserting a rear portion of the processing tool;
With
The axial center of the charging hole is eccentric with respect to the central axis,
Handpiece characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A vibrator having a columnar shape and vibrating in a direction along a central axis of the columnar shape, and a connecting member provided with an insertion hole for mechanically coupling to the vibrator and inserting a rear portion of the processing tool;
With
The axial center of the charging hole is inclined with respect to the central axis,
Handpiece characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A vibrator having a columnar shape and vibrating in a direction along the central axis of the columnar shape;
A connecting member that is mechanically coupled to the vibrator and is provided with a holding portion that holds a rear portion of the processing tool;
With
The center of gravity of the connecting member is eccentric from the central axis;
Handpiece characterized by that. A handpiece for holding a bar-shaped processing tool capable of processing a workpiece at the tip,
A connecting member provided with a vibrator having a columnar shape and vibrating in a direction along a central axis of the columnar shape, and a holding portion that mechanically couples to the vibrator and holds a rear portion of the processing tool;
With
At least a part of the centroid of the region surrounded by the outline of the cross section orthogonal to the central axis of the connecting member is eccentric from the central axis;
Handpiece characterized by that.

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