WO2005049255A1

WO2005049255A1 - Machining device

Info

Publication number: WO2005049255A1
Application number: PCT/JP2004/017365
Authority: WO
Inventors: Kazumasa Ohnishi
Original assignee: Kazumasa Ohnishi
Priority date: 2003-11-20
Filing date: 2004-11-22
Publication date: 2005-06-02
Also published as: JPWO2005049255A1

Abstract

A machining device has a base on which a workpiece is placed, a supporting column stood on the base, a supporting member liftably installed on the supporting column, a hollow motor supported, by the supporting member, above a region where the workpiece is placed, a hollow spindle connected to the motor and extending downward, a chuck fixed to the lower end of the spindle, a tool having a column-like shank and supported by and fixed to the chuck at the side face of the shank, a supersonic vibration-applying member provided, in a contacting manner through a lubrication layer, on the shank of the tool, and a load-applying member for pressing the supersonic vibration-applying member to the top surface of the shank of the tool. The construction of the machining device is simple, and capable of performing machining by applying, with a simple method, supersonic vibration to various kinds of tools.

Description

Specification

Machining equipment

Technical field

The present invention relates to a machining device provided with a tool such as a drill.

Background art

[0002] Conventionally, when performing machining with a tool such as a drill, tap, reamer, end mill, or gantry having a columnar handle, a chuck that supports and fixes the tool on the side surface of the handle. And a motor for rotating the chuck. Then, various types of machining are performed by rotating the tool supported and fixed on the chuck of the machining apparatus and bringing the tool into contact with the object to be machined.

[0003] On the other hand, it is known that applying ultrasonic vibration to a tool improves the efficiency and accuracy of machining.

[0004] Japanese Patent Application Laid-Open No. 2000-254801 discloses an ultrasonic vibrator arranged in a hollow sleeve formed in a spindle that is rotationally driven by a drive motor, connected to the ultrasonic vibrator coaxially and There is disclosed a spindle structure constituted by two supporting horns restrained and fixed to the inner peripheral wall of the hollow sleeve, and a holder horn connected to the bottom of the supporting horn and having a tip attached to a tip (tool). RU

When the spindle is rotated, the two support horns fixed to and fixed to the inner peripheral wall of the hollow sleeve of the spindle rotate, so that the tool fixed to the holder horn connected to the bottom of the support horn, and the support horn The ultrasonic vibrator connected to the top of the is rotated. The ultrasonic vibrator applies ultrasonic vibration to the processing chip via two support horns and a holder horn. A power supply unit is connected to the ultrasonic vibrator via an annular power supply brush (slip ring) to apply electric energy for generating ultrasonic vibration to the ultrasonic vibrator rotating with the tool. RU

[0006] In the spindle structure described in this publication, compressive deformation and tensile deformation are caused in the two support horns in the order of the arrangement direction to each other by ultrasonic vibration load on the two support horns up to the ultrasonic vibrator force processing tip. The vibration that is excited is excited so that the spindle It is said that the escape of the ultrasonic vibration energy to the side can be suppressed, the ultrasonic vibration can be efficiently transmitted to the processing chip side, and the holder horn can be prevented from oscillating in the radial direction. It is said that by using this spindle structure, the machining efficiency of the workpiece (workpiece) by the machining chip is improved, and the alignment of the machining chip with the workpiece can be maintained to maintain high-precision machining! / Puru.

[0007] Furthermore, the same publication discloses that in order to excite a predetermined vibration to the support horn, the vibration frequency of the ultrasonic vibrator, the natural vibration of the ultrasonic vibrator, the support horn, the holder horn, and the entire horn are all It is stated that the shape and mass of each member should be optimized so that the number and the natural frequency of the vibration system including the spindle as a mass point are appropriate.

Patent Document 1: JP 2000-254801A

Disclosure of the invention

Problems to be solved by the invention

[0008] By using the spindle structure described in the above-mentioned publication, it is possible to machine the carothe object with a high degree of accuracy. However, when using a different type or size of processing tip (tool) from the design, as described above, the vibration frequency of the ultrasonic vibrator, the ultrasonic frequency, It is necessary to optimize the shape and mass of each member so that the natural frequency of the vibrator, the support horn, the holder horn, and the processing chip as a whole becomes appropriate. In addition, since a slip ring is used to impart electric energy to the ultrasonic vibrator that rotates together with the tool, the configuration of the spindle is complicated. Further, many slip rings cannot transmit electric energy normally when the rotation shaft on which the slip ring is attached is rotated at a rotation speed exceeding approximately 5000 rotations Z minutes. For this reason, when using a spindle structure having a slip ring, it is difficult to rotate the tool at high speed.

An object of the present invention is to provide a machining apparatus which has a simple apparatus configuration and can perform machining by applying ultrasonic vibration to various tools by a simple method.

Means for solving the problem

[0010] The present invention provides a base on which an object to be processed is arranged, a support standing upright on the support, and a vertical support. A support member attached so as to be able to move, a hollow motor supported by the support member above a region where the workpiece is arranged, a rotatable hollow spindle connected to the motor and extending downward, and fixed to a lower end portion of the spindle. A chuck, a tool provided with a columnar handle, and supported and fixed to the chuck on a side surface of the handle; an ultrasonic vibration applying member disposed in contact with a top surface of the handle of the tool via a lubricating layer; And a load applying member for pressing the ultrasonic vibration applying member against the top surface of the handle of the tool.

Hereinafter, the machining device of the present invention having such a configuration is referred to as a machining device of the first configuration. Preferred embodiments of the machining device having the first configuration are as follows.

(1) The ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator, which is disposed in contact with the top surface of the handle of the tool, and the bolted Langevin type ultrasonic vibrator at the lower end, And a rod-shaped support member extending along the axis of the hollow spindle to above the hollow motor.

(2) an ultrasonic vibration applying member, a lower end surface of which is arranged in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending to above the hollow motor along the axis of the hollow spindle; and And a bolted Langevin type ultrasonic transducer fixed to the top.

(3) an ultrasonic vibration applying member, a lower end surface of which is in contact with the top surface of the handle portion of the tool, and a rod-shaped metal member extending above the hollow motor along the axis of the hollow spindle; And a piezoelectric vibrator fixed to the side surface.

(4) The lubricating layer is a solid lubricating layer made of a solid.

(5) The solid lubricating layer is fixed to the tool or the ultrasonic vibration applying member.

(6) The solid lubricating layer contains graphite or fluorine resin.

[0012] The present invention also provides a base, a stage on which an object to be processed is placed, which is installed on the base so as to be able to ascend and descend, a supporter erected on the supporter, a support member attached to the supporter, A hollow motor supported above the stage by a support member, a rotatable hollow spindle connected to the motor and extending downward, a chuck fixed to the lower end of the spindle, and a column-shaped handle are provided. A tool supported and fixed to the chuck on the side surface, an ultrasonic vibration applying member placed in contact with the top surface of the handle portion of the tool via a lubricating layer, and an ultrasonic vibration applying member attached to the top surface of the tool handle portion. The load applying member force that presses against is there.

Hereinafter, the machining apparatus of the present invention having such a configuration is referred to as a machining apparatus of the second configuration. Preferred embodiments of the ultrasonic vibration applying member and the lubricating layer of the machining apparatus having the second configuration are the same as those of the machining apparatus having the first configuration.

[0014] The present invention also provides a base on which the object to be processed is disposed, a support standing upright on the base, a support member attached to the support so as to be able to move up and down, and A vertically extending hollow spindle rotatably supported on the upper side, fixed to a supporting member, a motor having a drive shaft engaged with the hollow spindle via rotation transmitting means, and fixed to a lower end of the spindle. A tool provided with a chuck, a column-shaped handle, and supported and fixed to the chuck on the side surface of the handle, an ultrasonic vibration applying member disposed in contact with a top surface of the handle of the tool via a lubricating layer, In addition, there is a machining device that applies a force to apply a vibration applying member to the top surface of a handle portion of a tool.

Hereinafter, the machining device of the present invention having such a configuration is referred to as a machining device of a third configuration. Preferred embodiments of the machining apparatus having the third configuration are as follows.

(1) The ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator, which is disposed in contact with the top surface of the handle of the tool, and the bolted Langevin type ultrasonic vibrator at the lower end, A rod-shaped support member extending above the upper end of the spindle along the axis of the hollow spindle.

(2) an ultrasonic vibration applying member, a lower end surface of which is in contact with the top surface of the handle of the tool, and a bar-shaped metal member extending above the spindle upper end along the axis of the hollow spindle; and a bar-shaped metal member. And a bolted Langevin type ultrasonic vibrator fixed to the top of the.

(3) an ultrasonic vibration applying member, a lower end surface of which is in contact with the top surface of the handle portion of the tool, and a rod-shaped metal member extending above the spindle upper end along the axis of the hollow spindle; and And a piezoelectric vibrator fixed to the side surface.

(4) The lubricating layer is a solid lubricating layer made of a solid.

(6) The solid lubricating layer contains graphite or fluorine resin. [0016] The present invention also provides a base, a stage on which an object to be processed is placed, which is installed on the base so as to be able to ascend and descend, a support standing upright on the support, a support member attached to the support, A vertically extending hollow spindle rotatably supported above the region where the workpiece is arranged by the support member, fixed to a vertically extending hollow spindle, and a drive shaft is engaged with the above hollow spindle via rotation transmission means. A motor, a chuck fixed to the lower end of the spindle, and a column-shaped handle, a tool supported and fixed to the chuck on the side surface of the handle, and a top surface of the handle of the tool contacted through a lubricating layer. The ultrasonic vibration applying member arranged and a machining device having a load applying member force for pressing the ultrasonic vibration applying member against the top surface of the handle of the tool are used.

Hereinafter, the machining device of the present invention having such a configuration is referred to as a machining device having a fourth configuration. The preferred modes of the ultrasonic vibration applying member and the lubricating layer of the machining apparatus having the fourth configuration are the same as those of the machining apparatus having the third configuration.

The invention's effect

[0018] In the machining apparatus of the present invention, the ultrasonic vibration generated by the ultrasonic vibration applying member, which is placed in contact with the rotating tool in a stationary state on the top surface of the handle via the lubricating layer, Is given. For this reason, it is possible to directly connect an AC power supply to the ultrasonic vibrator included in the ultrasonic vibration applying member and apply electric energy without using a slip ring. Further, in the machining apparatus of the present invention, two supports fixed and fixed to the inner peripheral wall of the hollow sleeve of the spindle for rotating the tool and the ultrasonic vibrator as in the spindle structure described in the above-mentioned publication. There is no need to use a horn, nor is it necessary to excite the two supporting horns with special vibrations that cause the compressive and tensile deformations to occur in the order of arrangement. As described above, the machining apparatus of the present invention has a simple configuration, and can perform machining by applying ultrasonic vibration to various kinds of tools by a simple method. Further, the mechanical device of the present invention can rotate the tool at high speed because no slip ring is used.

BEST MODE FOR CARRYING OUT THE INVENTION

[0019] The machining apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a partially cutaway front view showing an example of a first configuration of a machining apparatus of the present invention. [0020] The mechanical casing device 10 shown in Fig. 1 includes a base 12 on which a processing object 11 is arranged, a support 13 erected on the base 12, and a support member mounted on the support 13 so as to be able to move up and down. 14, a hollow motor 15 supported above the area where the workpiece 11 is placed by the support member 14, a rotatable hollow spindle 16 connected to the motor 15 and extending downward, and a chuck fixed to the lower end of the spindle 16 17, a tool 18 provided with a column-shaped handle 18a, and a tool 18 supported and fixed to a chuck 17 on the side surface of the handle 18a, and is arranged in contact with a top surface of a handle 18a of the tool 18 via a solid lubricating layer 19. An ultrasonic vibration applying member 20 and a load applying member 21 for pressing the ultrasonic vibration applying member 20 against the top surface of the handle 18a of the tool 18 are provided. For example, a drill is used as the tool 18 included in the machining apparatus 10 of FIG.

The support 13 of the mechanical device 10 shown in FIG. 1 is connected to a motor 28 installed on the base 12 so as to be rotatable, and a screw is formed on an outer peripheral surface thereof. The top of the support 13 is rotatably supported by a bearing 30 provided on an upper part of an auxiliary support 31 erected on the base 12. In addition, a nut 29 is fitted into a portion of the column 13 where the screw is formed. The support member 14 that supports the hollow motor 15 is attached to the column 13 via a nut 29. By operating the motor 28 to rotate the column 13, the support member 14 fixed to the nut 29 can be raised or lowered along the length direction of the column 13.

A hollow spindle 16 is connected to a hollow motor 15 supported above a region where the workpiece 11 is arranged by a support member 14. By operating the hollow motor 15 to rotate the hollow spindle 16, the tool 18 supported and fixed on the chuck 17 provided at the lower end of the spindle 16 rotates. When the support member 14 is lowered as described above, the tool 18 contacts the workpiece 11 while rotating, and the workpiece 11 is machined, for example, when a drill is used as the tool 18. Is drilled.

Examples of the tool 18 include a drill having a columnar handle, a tap, a reamer, an end mill, a gantry, and a tool for ultrasonic blasting. When mechanical calorie is performed using these tools, a slurry containing abrasive grains can be supplied between the workpiece and the tool. By supplying the abrasive slurry between the workpiece and the tool, the efficiency of machining can be increased. Examples of the abrasive grains contained in the abrasive slurry include: Examples include silicon carbide particles, chromium oxide particles, iron oxide particles, silicon carbide particles, boron nitride particles, and diamond particles. Examples of the abrasive slurry solvent include water and oil.

An ultrasonic vibration applying member 20 is disposed in contact with a top surface of a handle 18 a of a tool 18 of the mechanical machine 10 of FIG. 1 via a solid lubricating layer 19. The ultrasonic vibration applying member 20 of the machining apparatus 10 shown in FIG. 1 includes a bolted Langevin type ultrasonic vibrator 22 and a bolted Langevin type ultrasonic vibration placed in contact with the top surface of the handle 18a of the tool 18 described above. And a rod-shaped support member 23 that supports the child 22 at the lower end and extends above the hollow motor 15 along the axis of the hollow spindle 16. The rod-shaped support member 23 is vertically movable by a linear guide 27 fixed to the support member 14.

[0025] A bolted Langevin type ultrasonic transducer (hereinafter, also referred to as a Langevin type transducer) 22 is composed of a laminated body of a hollow cylindrical bottom support member 24 and piezoelectric vibrators 25a, 25b, It is formed by fastening together with metal members 26a and 26b arranged on each side by bolts (not shown) and fixed to the bottom plate 24.

[0026] Each of the piezoelectric vibrators 25a and 25b includes, for example, a plate-shaped piezoelectric body formed of a lead zirconate titanate-based piezoelectric ceramic material and electrode layers provided on the upper and lower surfaces thereof, respectively. It is configured. As the electrode layer, for example, a thin film (or thin plate) formed of a glass such as silver or phosphor bronze is used.

[0027] Each of the piezoelectric bodies included in the piezoelectric vibrators 25a and 25b is polarized, for example, in its thickness direction. In this case, it is preferable to arrange the piezoelectric vibrators 25a and 25b so that the polarization directions of the piezoelectric bodies are opposite to each other.

[0028] The metal members 26a and 26b are formed from a metal material such as titanium or stainless steel.

[0029] Then, by applying electric energy (for example, AC voltage) to each of the piezoelectric vibrators 25a and 25b through the respective electrode layers, the bolted Langevin type ultrasonic vibrator 22 becomes an ultrasonic wave. Generates vibration.

[0030] The ultrasonic vibration applying member used in the machining apparatus of the present invention is not limited to a configuration using a bolted Langevin-type ultrasonic vibrator, but includes a known ultrasonic vibrator. It can also be configured. Examples of the ultrasonic vibrator include an electrostrictive vibrator and a magnetostrictive vibrator. Examples of the electrostrictive vibrator include a piezoelectric vibrator and the above-mentioned bolted Langevin type ultrasonic vibrator. Examples of the magnetostrictive vibrator include a metal magnetostrictive vibrator and a ferrite vibrator. As the ultrasonic vibrator, it is preferable to use an electrostrictive vibrator because of its simple configuration.

[0031] The ultrasonic vibration applying member 20 of the machining apparatus 10 of the present invention has a bolted Langevin type ultrasonic vibrator 22 and a rod-shaped support member 23 in which one of the hollow spindle 16 and the chuck 17 is rotationally driven. The ultrasonic vibration generated by the Langevin type vibrator 22 can be applied to the tool 18 in a stationary state without being fixed. For this reason, the Langevin-type vibrator 22 of the ultrasonic vibration applying member 20 can directly connect an AC power supply to apply electric energy without using a slip ring. Further, in the machining apparatus of the present invention, two spindles are fixed and fixed to the inner peripheral wall of the hollow sleeve of the spindle in order to rotate the tool and the ultrasonic vibrator as in the spindle structure disclosed in JP-A-2000-254801. There is no need to use a support horn, nor is it necessary to excite the two support horns with special vibrations that cause compressive and tensile deformations to occur in the order of arrangement. As described above, the machining apparatus of the present invention has a simple configuration, and can perform machining by applying ultrasonic vibration to various tools by a simple method. Further, the machining apparatus of the present invention is capable of rotating a tool at a high speed because it is not necessary to use a slip ring.

Next, the solid lubricating layer 19 of the mechanical device 10 of FIG. 1 will be described. The solid lubricating layer 19 has a function of reducing the friction coefficient between the rotating tool 18 and the ultrasonic vibration applying member 20 arranged in contact with the top surface of the handle 18a. The solid lubricating layer 19 is a layer formed of a solid lubricant described below, or a layer formed of a solid material containing a solid lubricant. Since the solid lubricant is a known material, it will be briefly described below. Solid lubricants are broadly divided into the following four groups of solid lubricants.

[0033] The solid lubricant belonging to the first group is a material having a layered crystal structure. Examples thereof include graphite, sulfides such as molybdenum disulfide and molybdenum disulfide and tungsten, fluorides such as carbon sulfide, and nitrides such as boron nitride. The solid lubrication layer For example, it is obtained by forming these solid lubricants into a layer.

[0034] Solid lubricants belonging to the second group are resin materials used as sliding members. Examples include fluorine resin, polyamide resin, and polyethylene resin.

[0035] The solid lubricant belonging to the third group is called a self-lubricating composite material. For example, a metal material and the solid lubricant belonging to the first group described above (for example, graphite disulfide) Molybdenum) and a solid lubricant belonging to the first group and a solid lubricant belonging to the second group. There are various methods of compounding.Examples include a method of impregnating graphite with a metal material, a method of impregnating a solid lubricant belonging to the first group with a resin material which is a solid lubricant belonging to the second group. A method of adding a powder of a lubricant (for example, a powder of molybdenum disulfide) is included.

[0036] The solid lubricant belonging to the fourth group is a thin metal film such as lead, tin, gold or silver. Usually, the thickness of the metal thin film used as the solid lubricant is set in the range of 1 to 10 / zm. As an example of a method of forming a metal thin film, an ion plating method and a snotter method can be given.

As described above, in the machining apparatus of the present invention, the lubrication layer disposed between the ultrasonic vibration applying member and the tool is preferably a solid lubrication layer. As the lubricating layer, instead of the solid lubricating layer described above, there is a semi-solid lubricating layer in which a semi-solid lubricant such as grease is also formed, or a liquid lubricating layer in which a liquid lubricant such as oil is also formed. A lubricating layer formed by adding a powder of the solid lubricant belonging to the first group to these lubricants can also be used. Further, the above-mentioned semi-solid lubricating layer or liquid lubricating layer may be provided between the solid lubricating layer and the tool or the ultrasonic vibration applying member. When a solid lubricating layer is used as the lubricating layer as in the machining apparatus 10 shown in FIG. 1, it is possible to prevent oil and the like from dropping and adhering to the workpiece and contaminating the workpiece.

The solid lubricating layer 19 is preferably fixed to the tool 18 or the ultrasonic vibration applying member 20. The solid lubricating layer 19 and the tool 18 are joined to each other by, for example, epoxy resin. [0039] Solid lubricant layer 19 of the machine mosquito卩E device 10 of FIG. 1, 5 mass graphite powder 0. 5 m average particle size comprising a spindle oil ^_0/0, and fluorine榭脂(eg, poly It is made of epoxy resin to which 5% by mass of powder of tetrafluoroethylene is added. The solid lubricating layer is also preferably formed from a self-lubricating composite material (SC Carbon NC-071, manufactured by Nippon Carbon Co., Ltd.) in which graphite is impregnated with an antimony alloy.

Further, as shown in FIG. 1, in order to sufficiently contact the ultrasonic vibration applying member 20 with the top surface of the handle 18 a of the tool 18, the ultrasonic vibration applying member 20 is placed on the rod-shaped support member 23 of the ultrasonic vibration applying member 20. Is a weight as a load applying member 21. When the bolted Langevin type ultrasonic vibrator 22 and the rod-shaped support member 23 of the ultrasonic vibration applying member 20 have sufficiently large masses, the ultrasonic vibration applying member 20 can be used as a load applying member.

FIG. 2 is a partially cutaway front view showing another example of the first configuration of the machining apparatus of the present invention, and FIG. 3 is an ultrasonic vibration provided in the machining apparatus 40 of FIG. FIG. 9 is an exploded perspective view showing the configuration of a hollow spindle 46 into which a rod-shaped metal member 53 of an applying member 50 is inserted and a check 47 to which a tool 48 is supported and fixed. For example, a drill is used as the tool 48 of the mechanical device 40 of FIG.

The configuration of the machining apparatus 40 shown in FIG. 2 is such that the ultrasonic vibration imparting member 50 is arranged such that the lower end surface thereof is in contact with the top surface of the handle 48 a of the tool 48, and the hollow motor 15 extends along the axis of the hollow spindle 46. 1 is the same as the mechanical calorie device 10 of FIG. 1 except that it comprises a rod-shaped metal member 53 extending to the upper part of the bar and a bolted Langevin type ultrasonic transducer 52 fixed to the top of the rod-shaped metal member 53. It is.

The rod-shaped metal member 53 is formed of a metal material such as titanium or stainless steel.

Further, as shown in FIG. 3, the hollow spindle 46 and the chuck 47 are mutually moved by pushing an inverted truncated cone-shaped portion formed below the spindle 46 into a hole formed above the chuck 47. Is temporarily fixed by the frictional force. Such a configuration of the spindle and the chuck is a known configuration employed in a known drilling machine and the like. With such a configuration, it is possible to use various chucks suitable for the diameter of the tool.

The ultrasonic vibration imparting member 50 of the machining apparatus 40 shown in FIG. The ultrasonic vibration generated by the ultrasonic vibrator 52 is applied to the tool 48 via the rod-shaped metal member 53 and the solid lubricant layer 19. When the bar-shaped metal member 53 is used, the Langevin vibrator 52 can be arranged outside the hollow spindle 46, so that the diameter of the spindle 46 can be reduced, and the size of the machining apparatus can be easily reduced. is there. Further, since the bolted Langevin type ultrasonic vibrator 52 can be easily replaced, it is easy to change the frequency of the ultrasonic vibration applied to the tool during machining.

FIG. 4 is a view showing another example of the configuration of the ultrasonic vibration applying member used in the machining apparatus of the present invention and the state of contact with the tool. The ultrasonic vibration applying member 60 shown in FIG. 4 includes a rod-shaped metal member 63 having a lower end surface in contact with the top surface of a handle 68a of a tool 68 and extending above the upper end of the hollow spindle along the axis of the hollow spindle, and a rod-shaped metal member 63. A total of four piezoelectric vibrators 62 are fixed along the circumferential direction of the side surface of the member 63. The vicinity of the lower end of the rod-shaped metal member 63 is formed in a disk shape in order to ensure a good contact state with the solid lubricating layer 69.

Further, the solid lubrication layer 69 shown in FIG. 4 is set in a columnar shape in which a concave portion having a diameter corresponding to the diameter of the handle portion 68a of the tool 68 is formed on the lower surface. The solid lubrication layer 69 and the tool 68 are inserted into the recess on the lower surface of the solid lubrication layer 69 by applying an adhesive (eg, epoxy resin) to the top surface of the handle 68a, and then applying the adhesive. They are joined together by curing. As described above, when the solid lubricating layer 69 having a diameter larger than the diameter of the handle 68a of the tool 68 is used, the contact area between the solid lubricating layer 69 and the rod-shaped metal member 63 increases, and the solid lubricating layer 69 is generated by the piezoelectric vibrator 62. Ultrasonic vibration is easily transmitted to the tool 68.

FIG. 5 is a partially cutaway front view showing still another example of the first configuration of the machining apparatus of the present invention. The configuration of the machining device 70 in FIG. 5 is such that the ultrasonic vibration applying member 20 is a load applying member 71 that presses against the top surface of the handle 18a of the tool 18 as a linear support member fixed to the rod-shaped support member 23 and the support member 14. It is the same as the mechanical casing device 10 of FIG. 1 except that a total of four coil panels for connecting the guide 27 are used. Thus, an elastic body such as a coil panel can be used as the load applying member.

FIG. 6 is a partially cutaway front view showing an example of the second configuration of the machining apparatus of the present invention. The machining device 80 shown in Fig. 6 is a base 12 and a caro A stage 81 on which the object 11 is placed, a column 83 erected on the base 12, a support member 14 attached to the column 83, a hollow motor 15 supported above the stage 81 by the support member 14, A rotatable hollow spindle 16 connected to the motor 15 and extending downward, a chuck 17 fixed to the lower end of the spindle 16, and a columnar shank 18a are supported and fixed to the chuck 17 on the side of the shank 18a. The ultrasonic vibration imparting member 20 and the ultrasonic vibration imparting member 20, which are disposed in contact with the top surface of the tool 18, the handle 18 a of the tool 18 via the solid lubricating layer 19, and the top of the handle 18 a of the tool 18. It is composed of a load applying member 21 pressed against the surface.

[0050] The mechanical caulking device 80 of Fig. 6 is different from the mechanical caulking device 10 of Fig. 1 in that the tool is lowered and brought into contact with the karoe object to mechanically caulk the workpiece. The object 11 is machined by moving the stage 81 up and bringing the object 11 placed on the stage 81 into contact with the tool 18. As the stage 81, for example, a three-dimensional positioning stage can be used. In addition, as the stage, for example, a plate material that is attached to the column so as to be able to move up and down in the same manner as the support member 14 of the mechanical force maker 10 in FIG. 1 is used.

FIG. 7 is a partially cutaway front view showing an example of the third configuration of the machining apparatus of the present invention. The machine casing 90 shown in FIG. 7 includes a base 12 on which a workpiece 11 is arranged, a support 13 erected on the base 12, a support member 14 attached to the support 13 so as to be able to move up and down, and a support. A vertically extending hollow spindle 46 rotatably supported above the arrangement area of the workpiece 11 by the member 14 and fixed to the supporting member 14, and the drive shaft 95 a is driven via the hollow spindle 46 and the rotation transmitting means 96. It has a motor 95 engaged, a chuck 47 fixed to the lower end of the spindle 46, and a column-shaped handle 48a, and a tool 48 and a tool 48 supported and fixed to the chuck 47 on the side surface of the handle 48a. The ultrasonic vibration applying member 50, which is disposed in contact with the top surface of the handle portion 48a of the tool 48 via the solid lubricating layer 19, and the load applying member 21 that presses the ultrasonic vibration applying member 50 against the top surface of the handle portion 48a of the tool 48. It is composed.

The hollow spindle 46 of the mechanical device 90 of FIG. 7 is rotatable by a bearing 100 fixed to the lower surface of the support member 14. The hollow spindle 46 and the drive shaft 95a of the motor 95 fixed to the support member 14 are engaged via rotation transmission means 96. . A belt is used as the rotation transmitting means 96 of the mechanical device 90 in FIG. Examples of the rotation transmitting means include a gear and the like in addition to the belt. The configuration of the machine 90 shown in FIG. 7 is the same as that of the machining apparatus 40 shown in FIG. 2 except that the rotary spindle 46 is rotationally driven by a motor 95 engaged via a rotation transmitting means 96. The same is true.

A configuration in which the mechanical processing device 90 of FIG. 7 is raised and the stage on which the object to be processed is placed is lifted in the same manner as in the case of the mechanical processing device 80 of FIG. 6 (fourth configuration) ).

Brief Description of Drawings

FIG. 1 is a partially cutaway front view showing an example of a first configuration of a machining apparatus of the present invention.

FIG. 2 is a partially cutaway front view showing another example of the first configuration of the machining apparatus of the present invention.

FIG. 3 is an exploded perspective view showing a configuration of a hollow spindle into which a rod-shaped metal member included in the ultrasonic vibration applying member of the machining apparatus of FIG. 2 is inserted, and a chuck to which a tool is supported and fixed.

FIG. 4 is a view showing another configuration example of the ultrasonic vibration applying member used in the machining apparatus of the present invention and a state of contact with the tool.

FIG. 5 is a partially cutaway front view showing still another example of the first configuration of the machining apparatus of the present invention.

FIG. 6 is a partially cutaway front view showing an example of a second configuration of the machining apparatus of the present invention.

FIG. 7 is a partially cutaway front view showing an example of a third configuration of the machining apparatus of the present invention. Explanation of symbols

[0055] 10 Machine processing equipment

11 Workpiece

12 bases

13 props

14 Support members

15 Hollow motor

16 Hollow Spin Donore Chuck

tool

a Tool handle

Solid lubrication layer

Ultrasonic vibration applying member

Load applying member

Bolt-fastened Langevin type ultrasonic transducer Bar-shaped support member

Bottom plate of hollow cylindrical support member a, 25b Piezoelectric vibrator

a, 26b metal parts

Linear guide

motor

Nut

Bearing

Auxiliary strut

Machining equipment

Hollow Spindle

Chuck

tool

a Tool handle

Ultrasonic vibration applying member

Bolt-fastened Langevin type ultrasonic transducer Rod-shaped metal member

Ultrasonic vibration applying member

Piezoelectric vibrator

Rod-shaped metal member

tool a Tool handle Solid lubrication layer Machining device Load applying member Machining device Stage support

Machining equipment Motor a Motor's drive shaft Rotation transmission means 0 Bearing

Claims

The scope of the claims

[1] A base on which an object to be processed is placed, a support standing upright on the base, a support member attached to the support so as to be able to move up and down, and a support member provided above the area where the work is arranged. It has a supported hollow motor, a rotatable hollow spindle connected to the motor and extending downward, a chuck fixed to the lower end of the spindle, and a column-shaped handle. A tool supported and fixed to the tool, an ultrasonic vibration applying member disposed in contact with the top surface of the handle portion of the tool via a lubricating layer, and a load for pressing the ultrasonic vibration applying member against the top surface of the handle portion of the tool. A mechanical processing device that is a powerful member.

[2] An ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator, which is arranged in contact with the top surface of the handle of the tool, and the bolted Langevin type ultrasonic vibrator at the lower end. The machining apparatus according to claim 1, wherein the rod-shaped support member extends to a position above the hollow motor along the axis of the hollow spindle.

[3] An ultrasonic vibration applying member, a lower end surface of which is disposed in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending up to the hollow motor along the axis of the hollow spindle; The machining apparatus according to claim 1, comprising a bolted Langevin type ultrasonic vibrator fixed to the fin.

[4] An ultrasonic vibration applying member, a lower end surface of which is arranged in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending to above the hollow motor along the axis of the hollow spindle; 2. The machining apparatus according to claim 1, comprising a piezoelectric vibrator fixed to the piezoelectric vibrator.

[5] The machining apparatus according to claim 1, wherein the lubricating layer is a solid lubricating layer having a solid strength.

6. The machining apparatus according to claim 5, wherein the solid lubrication layer is fixed to a tool or an ultrasonic vibration applying member.

[7] A base, a stage on which an object to be processed is placed, which is installed on the base so as to be able to ascend and descend, a support standing upright on the support, a support member attached to the support, and the support A hollow motor supported above the stage by members, a rotatable hollow spindle connected to the motor and extending downward, a chuck fixed to the lower end of the spindle, and a columnar handle, and a side surface of the handle A tool supported and fixed to the chuck, an ultrasonic vibration applying member disposed in contact with a top surface of a handle of the tool via a lubricating layer, and the ultrasonic vibration applying section A mechanical processing device that applies force to the material to press the material against the top surface of the tool handle.

[8] An ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator, which is disposed in contact with the top surface of the handle of the tool, and supports the bolted Langevin type ultrasonic vibrator at the lower end. The machining apparatus according to claim 7, wherein the rod-shaped support member extends along the axis of the hollow spindle to above the hollow motor.

[9] An ultrasonic vibration applying member, a lower end surface of which is in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending above the hollow motor along the axis of the hollow spindle; and a top portion of the rod-shaped metal member. 8. The machining device according to claim 7, comprising a bolt-fastened Langevin type ultrasonic transducer fixed to the bolt.

[10] An ultrasonic vibration applying member, a lower end surface of which is in contact with the top surface of the handle of the tool, and a rod-shaped metal member extending above the hollow motor along the axis of the hollow spindle, and a side surface of the rod-shaped metal member. 8. The machining apparatus according to claim 7, comprising a piezoelectric vibrator fixed to the piezoelectric vibrator.

[11] The machining device according to claim 7, wherein the lubricating layer is a solid lubricating layer having a solid strength.

12. The machining apparatus according to claim 11, wherein the solid lubrication layer is fixed to a tool or an ultrasonic vibration applying member.

[13] A base on which the object to be processed is arranged, a support standing upright on the base, a support member attached to the support so as to be able to move up and down, and a support member provided above the area where the work is arranged. A vertically extending hollow spindle rotatably supported, a motor fixed to the support member, and a drive shaft engaged with the hollow spindle via rotation transmitting means, fixed to the lower end of the spindle A tool provided with a chuck and a column-shaped handle portion, supported and fixed to the chuck on a side surface of the handle portion, an ultrasonic vibration applying member disposed in contact with a top surface of the handle portion of the tool via a lubricating layer, And a machining device comprising a load applying member for pressing the ultrasonic vibration applying member against the top surface of the handle of the tool.

[14] An ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator placed in contact with the top surface of the handle of the tool, and supports the bolted Langevin type ultrasonic vibrator at the lower end. 14. The machining apparatus according to claim 13, further comprising a rod-shaped support member extending above the upper end of the hollow spindle along the axis of the hollow spindle.

[15] The ultrasonic vibration applying member is arranged so that the lower end surface thereof is in contact with the top surface of the handle portion of the tool, and is hollow. 14. The machining apparatus according to claim 13, comprising a rod-shaped metal member extending above the upper end of the spindle along the axis of the spindle, and a bolt-fastened Langevin-type ultrasonic transducer fixed to the top of the rod-shaped metal member. .

[16] An ultrasonic vibration applying member, a lower end surface of which is in contact with a top surface of a handle portion of the tool, and a bar-shaped metal member extending above the upper end of the hollow spindle along the axis of the hollow spindle; 14. The machining apparatus according to claim 13, comprising a piezoelectric vibrator fixed to a side surface of the member.

[17] A base, a stage on which an object to be processed is placed, which is installed on the base so as to be able to ascend and descend, a support standing upright on the support, a support member attached to the support, and the support A vertically extending hollow spindle rotatably supported above a region where the object is arranged by a member, fixed to the support member, and a drive shaft is engaged with the hollow spindle via rotation transmitting means; A motor, a chuck fixed to the lower end of the spindle, a tool having a columnar handle, and a tool supported and fixed to the chuck on the side surface of the handle, and a lubricating layer on the top surface of the handle of the tool. And an ultrasonic vibration applying member, which is disposed in contact with the tool through the intermediary of the tool, and a load applying member which presses the ultrasonic vibration applying member against the top surface of the handle of the tool.

[18] An ultrasonic vibration applying member supports the bolted Langevin type ultrasonic vibrator placed in contact with the top surface of the handle of the tool and the bolted Langevin type ultrasonic vibrator at the lower end. 18. The machining apparatus according to claim 17, further comprising a rod-shaped support member extending above the upper end of the hollow spindle along the axis of the hollow spindle.

[19] An ultrasonic vibration applying member, a lower end surface of which is disposed in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending above the upper end of the hollow spindle along the axis of the hollow spindle; 18. The machining apparatus according to claim 17, comprising a bolted Langevin type ultrasonic transducer fixed to a top of the member.

[20] An ultrasonic vibration applying member, a lower end surface of which is in contact with a top surface of a handle portion of the tool, and a rod-shaped metal member extending above the upper end of the hollow spindle along the axis of the hollow spindle; 18. The machining apparatus according to claim 17, comprising a piezoelectric vibrator fixed to a side surface of the member.