JP5988066B1 - Transmitter built-in fastener and annular blade holding device using the transmitter built-in fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To incorporate a tip of a sensor such as temperature, pressure, vibration, etc. on a cutting edge of a rotating tool or an outer peripheral edge of a grinding wheel in order to accurately detect a processing point temperature of a processing tool (a cutting blade or a grinding wheel). Further, the present invention relates to an improvement of a fastener with a built-in transmitter that can directly detect the temperature, pressure, vibration, and the like of the outer peripheral surface of a grinding wheel and a workpiece processing point. In a tool holding device 100 in which an insertion portion 1 is detachably attached to a connecting hole S1 of a spindle S, and an annular blade 10 and 20 are detachably attached to a tip attachment portion 3 by a fastener 21, the annular blade is provided. An A / D converter 50, a transmitter 60, and a battery that incorporate detection means TS for temperature, pressure, vibration, and the like toward the outer peripheral edge in the central hole portion of the, and digitize the signal from the detection means in the fastener. B is separated and incorporated, and information is propagated from the transmitter to the external control unit 70 wirelessly. [Selection] Figure 1

Description

  The present invention relates to a transmitter built-in fastener and a holding device (tool holder or arbor) of an annular blade such as a grinding wheel or a cutting blade using the same, and in particular, processing of an annular blade (a cutting blade or a grinding wheel). In order to accurately detect the temperature of the point, the tip of the sensor such as temperature, pressure, vibration, etc. is built in the cutting edge of the rotary tool and the outer peripheral edge of the grinding wheel, and the temperature and pressure of the outer periphery of the cutting edge and the grinding wheel and the workpiece processing point The present invention relates to a transmitter built-in fastener that can directly detect vibration and the like.

  In recent years, for example, there has been an increase in demand for low fuel consumption in order to cope with an increase in international logistics by aircraft and to improve the environment of the earth, and lightening of jet engines and improvement in fuel consumption have been attempted. As specific measures, two jet engines are made smaller and smaller, and further, turbine blades are made thinner. In particular, high-precision grinding technology is essential for reducing the thickness of turbine blades. There is provided a technology for performing processing while jetting cooling water onto the surface of this conventional cutting tool or grinding wheel to perform water cooling of the surface, removal of chips and dust, and detection of the processing point and the surrounding temperature conditions.

  In addition, when cutting or grinding a metal material, to prevent material deterioration due to abnormal increase in processing temperature, and when polishing a substrate with a material layer with a different friction coefficient, the polishing temperature change is detected. In order to automatically stop polishing when the polishing temperature reaches a predetermined temperature, the cutting is provided with detection means for detecting temperature, pressure, vibration, etc., for detecting the temperature rise of the workpiece, cutting tool or grinding wheel Equipment, grinding machines, etc. are provided.

  The specific technique is a polishing end point detection method and a polishing apparatus capable of detecting the polishing end point with high accuracy, and detects a change in polishing temperature when polishing a substrate having a material layer having a different friction coefficient. The polishing is automatically stopped when the polishing temperature reaches a predetermined temperature. Specifically, the polishing member includes a rotating support having a polishing unit disposed on a surface thereof, and a rotating member holding member rotating and holding unit that rotates and holds the polishing member placed on the polishing unit. Detection means such as a polishing temperature is provided at least in part or in the vicinity thereof, and control means is provided to stop polishing when the polishing temperature detected by the detection means such as the polishing temperature reaches a predetermined temperature. And the detection means, such as said grinding | polishing temperature, pressure, a vibration, shall be a thermocouple or an infrared temperature detector (for example, refer patent document 1).

  Further, there is a machine tool state detection device that accurately detects axial displacement due to the thermal effect of a rotating tool such as a grindstone to improve machining accuracy. The configuration is provided with a non-contact displacement sensor for detecting the displacement of the outer diameter of the grindstone shaft in the vicinity of the outer diameter surface of the grindstone shaft attached to the tip of the spindle shaft of the grinding machine. The calculation means calculates the elongation in the axial direction of the grindstone shaft from the detection signal of the displacement sensor. The material of the grindstone shaft is a material having a larger heat transfer coefficient than that of the spindle (see, for example, Patent Document 2).

  Furthermore, in the grinding apparatus while appropriately measuring the workpiece temperature, the one end of each thermocouple wire constituting the thermocouple is spaced apart and brought into contact with the surface of the workpiece W being ground, thereby reducing the workpiece temperature. Means for detecting the temperature to be measured are provided. Judgment means is provided for judging whether or not the grinding wheel needs to be dressed by judging whether or not the workpiece temperature measured by the detection means such as the temperature is a first allowable temperature with respect to the workpiece temperature during normal grinding. (For example, refer to Patent Document 3).

  Furthermore, the object to be polished W and the polishing pad are relatively moved while the slurry is supplied from the supply nozzle in a state where the object to be polished held on the upper surface plate and the polishing pad mounted on the lower surface plate are contacted and pressurized. Is a system that monitors the state of polishing performed by sliding in a moving manner, and calculates the uniformity of the temperature of the polishing pad based on the detection output of multiple temperature sensors arranged at different positions in the radial direction of the polishing pad Then, the uniformity of polishing is monitored from the correlation between the uniformity of temperature and the uniformity of polishing (see, for example, Patent Document 4).

  Further, the transmitter built-in tool holder or arbor is a tool holder in which the insertion portion can be attached to and detached from the connecting hole of the main shaft, and an annular blade or a grinding wheel is detachably attached to the tip attachment portion. Temperature, pressure, vibration, and other detection means are built in from the center hole of the grinding wheel toward the outer periphery, and the temperature, pressure, and vibration are inserted into the annular cutting tool inner or flange part that is inserted into the center hole of the grinding wheel. An A / D converter, a transmitter, and a battery for digitizing a signal from a detection means such as the above are built in, or an A / D converter, a transmitter, and a battery for digitizing in a tool holder, Information is propagated wirelessly from the transmitter to the external control unit (see, for example, Patent Document 5).

  JP-A-8-78369   Japanese Patent Laid-Open No. 10-118925   JP-A-6-246632   JP 2008-93742 A   Utility Model Registration No. 3170029

  The polishing apparatus disclosed in Japanese Patent Application Laid-Open No. 8-78369 rotates with the detection means such as the polishing temperature as a back surface of a member to be polished (polishing substrate) to be polished in contact with a polishing cloth affixed to a rotating surface plate. Because the substrate holder is equipped with a thermocouple, the surface temperature of the member to be polished (polishing substrate) to be polished in contact with the polishing cloth cannot be detected directly, and the member to be polished (polishing substrate) with poor thermal conductivity is accurate. In a thermocouple provided in a substrate holder having a heat capacity much larger than that of the member to be polished (polishing substrate), the substrate holder is heated from the member to be polished (polishing substrate). The problem of impossible accurate temperature detection on the surface side of the member to be polished (polishing substrate) is not solved because the conduction energy is absorbed vigorously.

  Further, the machine tool detecting device of Japanese Patent Laid-Open No. 10-118925 discloses a displacement of the outer diameter of the grindstone shaft in the vicinity of the outer diameter surface of the grindstone shaft attached to the tip of the spindle shaft of the grinding machine. A non-contact displacement sensor for detection is provided. The calculation means calculates the axial elongation of the grinding wheel shaft from the detection signal of the displacement sensor, and cannot detect the outer peripheral temperature of the grinding wheel. In a grinding apparatus that appropriately measures the workpiece temperature disclosed in JP-A-6-246632, one end of each thermocouple wire constituting the thermocouple is separated and brought into contact with the surface of the workpiece W being ground. Thus, the workpiece temperature is measured, and the cutting edge of the cutting tool and the outer peripheral temperature of the grinding wheel cannot be directly detected. JP-A-2008-93742 discloses a system for monitoring the state of polishing from a supply nozzle in a state where an object to be polished held on an upper surface plate and a polishing pad mounted on the lower surface plate are contact-pressurized. While supplying the slurry, the object to be polished and the polishing pad are slid relative to each other, and the temperature sensor is mounted on the lower surface plate on the back surface side of the polishing pad. This is a method for detecting the surface temperature of a polished object, and the surface temperature of the object to be polished is detected through a polishing pad with poor thermal conductivity, and accurate temperature detection cannot be expected.

  Furthermore, the sensor built-in tool holder of Utility Model Registration No. 3170029 digitizes the signal from the detecting means such as temperature, pressure, vibration, etc. in the annular cutting tool inner part or the flange part inserted into the central hole part in the grinding wheel. A / D converter, transmitter, and battery to be built in, or A / D converter, transmitter, and battery to be digitized separately in the tool holder, and externally controlled from the transmitter by radio Information is transmitted to the department. For this reason, not only the cost of the annular blade or grinding wheel is increased, but also battery charging is indispensable for long-time use, and charging work is performed by removing the annular blade or grinding wheel from the tool holder. Furthermore, in the case where the A / D converter, transmitter and battery are separated and incorporated in the tool holder, the cost increase factor of the annular blade or grinding wheel is reduced, but the tool holder is increased in cost. There is a problem that complicates the charging operation of the battery in the holder.

The present invention has been made in view of the problems in the above-mentioned known documents, and in particular, to minimize the cost increase factor of the annular cutting tool or the grinding wheel and to eliminate the cost increase factor of the tool holder or the arbor. The A / D converter, the transmitter, and the battery were separately installed in the fastener that fastens the annular cutting tool or the grinding wheel to the tip mounting portion of the tool holder. We have developed a holding device for annular blades using this separately installed transmitter built-in fastener.
Thus, in the tool holder or arbor for holding the annular cutting tool or grinding wheel, with minimized cost increase factor of the annular cutting tool or grinding wheel, cost factors of the tool holder or arbor also is eliminated, further tool holder or arbor And a built-in transmitter that has succeeded in dramatically improving the high-precision operability of cutting and grinding by simplifying battery charging with a battery housed in a fastener that governs the attachment and detachment of an annular blade or grinding wheel Provided is a holding device for an annular blade by a transmitter built-in fastener.

The holding device for an annular blade with a transmitter built-in fastener according to claim 1 that achieves the above object , wherein the insertion portion can be attached to and detached from the coupling hole of the main shaft, and the annular blade is attached to the tip attachment portion of the insertion portion. In the annular blade holding device in which detecting means such as temperature, pressure, vibration and the like are built in the central hole portion of the annular blade toward the outer peripheral edge, the annular blade is provided in the fastener. An A / D converter, a transmitter, and a battery that receive and digitize signals of temperature, pressure, and vibration from a detection means installed in a flange portion that is inserted into the center hole portion of the center hole portion, and the fastener at the tip end The detecting means and the A / D converter are connected to the attachment portion when fastened, and information is propagated from the transmitter to the external control portion wirelessly.

The holding device for the annular blade by the transmitter built-in fastener according to claim 2 is the holding device for the annular blade by the transmitter built-in fastener according to claim 1, wherein both sides of fastening of the annular blade and the fastener in the cap shape are performed. The surface is provided with an annular blade side connection terminal serving as an output end of the detecting means provided in the annular blade and a cap side connection terminal serving as an input end of an A / D converter provided in the cap of the fastener. The annular cutting tool is connected to the tip mounting portion with a fastener at the time of fastening.

Holding device of the annular cutting tool according to claim 3 oscillator built fastener described, the holding device of the annular cutting tool by oscillator built fastener according to claim 1, wherein said fastener, the front end attachment portion of the insertion portion It consists of a hooked bolt that fastens the bolt to the nut hole, and an A / D converter, a transmitter, and a battery are built in the hook of the hooked bolt, and the annular blade and the hook of the hooked bolt are fastened. On both side surfaces, there are a grindstone side connection terminal serving as an output end of the detecting means provided in the annular cutting tool and a cap side connection terminal serving as an input end of the A / D converter provided in the cage of the flanged bolt. It is provided that an annular cutting tool is connected to the tip mounting portion with a bolt at the time of fastening.

The annular blade holding device by the transmitter built-in fastener according to claim 4 is the annular blade holding device by the transmitter built-in fastener according to claim 1, wherein the fastener is provided at a tip attachment portion of the insertion portion. It comprises a nut body that fastens a female screw to a male screw, and an A / D converter, a transmitter, and a battery are built in the nut body, and the annular ring is provided on both sides of the annular blade and the nut body. A grindstone side connection terminal serving as an output end of the detecting means provided in the cutting tool and a cap side connection terminal serving as an input end of the A / D converter provided in the nut body are provided, and the tip mounting portion is annularly formed by the nut body. It is characterized in that the blade is connected when fastening.

The holding device for the annular blade by the fastener with built- in transmitter according to claim 5 is the holding device for the annular blade with the fastener with built-in transmitter according to claim 1, wherein the fastener is attached to the tip mounting portion of the insertion portion. The inner hole of the collar body to be inserted into the flange portion of the annular blade is fitted and a male screw is screwed and fastened to the female screw of the tip mounting portion, and the A / D converter, transmitter and battery are placed in the collar body. Built-in, on both sides of the fastening between the annular blade and the collar body, a grindstone side connection terminal serving as an output end of a detecting means provided in the annular blade and an input of an A / D converter provided in the collar body A cap-side connection terminal serving as an end is provided, and an annular blade is connected to the tip mounting portion when fastened.

The annular blade holding device by the transmitter built-in fastener according to claim 6 is the annular blade holding device by the transmitter built-in fastener according to any one of claims 1 to 5 , wherein the annular blade is a disk. It is characterized in that cutting pieces for cutting are arranged on the outer periphery.

The annular blade holding device by the transmitter built-in fastener according to claim 7 is the annular blade holding device by the transmitter built-in fastener according to any one of claims 1 to 5 , wherein the annular blade is a disk. It is characterized in that it is a shaped grinding wheel.

The holding device for an annular blade by a fastener with a built-in transmitter according to claim 8 is the holding device for an annular blade with a fastener with a built-in transmitter according to claim 7, wherein the disc-shaped grinding wheel has a granular density on the center side. It is characterized by lowering and increasing the granular density on the outer peripheral side.

The annular blade holding device by the transmitter built-in fastener according to claim 9 is the annular blade holding device by the transmitter built-in fastener according to any one of claims 1 to 5 , wherein the temperature, pressure, vibration The detecting means is a temperature sensing element composed of a thermocouple, an infrared temperature element, a radiation temperature element, a thermistor, a thermal element, an optical fiber and the like.

According to the holding device (including the arbor) of the annular blade with the transmitter built-in fastener according to claims 1 to 7 and 9 of the present invention, the temperature, pressure, vibration, etc. from the center hole portion of the annular blade toward the outer peripheral edge. Since the A / D converter that digitizes the signal from the detection means, the transmitter, and the battery are incorporated in the fastener that incorporates the detection means and attaches the annular cutting tool to the tip of the tool holder, the machining point of the workpiece And the temperature, pressure, vibration and temperature, pressure, and minute vibration information of the annular cutting edge in contact with this are rapidly transmitted from the transmitter in the fastener to the external control unit instantaneously and accurately. Temperature control, tool life and high quality machining of workpieces.

  Furthermore, since the A / D converter, transmitter, and battery that digitize the signal from the detection means are built in the cap, bolt, nut, collar, flange, etc., which are the fasteners built in the transmitter, In the holding device (tool holder or arbor) of the annular cutting tool with a built-in fastener, the cost increase factor of the cutter or grinding wheel that becomes the circular cutting tool can be minimized, and the cost increase factor of the tool holder or arbor can be eliminated Furthermore, it is possible to simplify the charging operation of a battery housed in a cap, bolt, nut, collar, or the like, which is a fastener, and dramatically improve the high-precision operability of cutting and grinding.

In addition, since the disk-shaped grinding wheel according to claim 8 has a lower granular density on the center side and a higher granular density on the outer peripheral side, the radiation that penetrates into the grindstone and releases coolant liquid radially to the outer peripheral surface. Efficiency is enhanced, temperature rise of the workpiece machining point and abrasive grains in contact with the workpiece can be suppressed, and tool life and high quality machining of the workpiece can be realized.

  1 is a cross-sectional view of a transmitter built-in fastener and peripheral devices according to a first embodiment of the present invention.   The 2nd Embodiment of this invention is shown and it is sectional drawing of a fastener built-in fastener and peripheral equipment.   It is sectional drawing of the holding | maintenance apparatus of the annular blade which showed 3rd Embodiment of this invention and employ | adopted the fastener with a built-in transmitter.   It is sectional drawing of the holding | maintenance apparatus of each transmitter built-in fastener and an annular blade. It is a perspective view of each transmitter built-in fastener, an annular blade side connection terminal, and a fastener side connection terminal.

  Hereinafter, embodiments of the present invention will be described sequentially with reference to FIGS. 1 to 5.

  The first and second embodiments of the present invention will be described with reference to block diagrams of fasteners with a built-in transmitter and peripheral devices shown in FIGS. The outline of this is that various detection signals e from the detection means TS such as temperature, pressure, vibration, etc. are received in the fasteners 200 such as bolts 12A, nuts 12B, caps 12C, collars 12D, flanges, etc. A / D converter 50, transmitter 60 for transmitting to external receiver 71, and battery B are incorporated. Accordingly, the information E of the various detection signals e is relayed and transmitted to various control device members 72 serving as the external receiver 71. Further, if necessary, as shown in FIG. 2, a transmitter built-in fastener in which a calculation unit CPU for calculating information E of various detection signals e and detection means TS are added in the transmitter built-in fastener 300. It may be 300.

  Since the transmitter built-in fastener 200 is composed of an IC chip in which the A / D converter 50, the transmitter 60, and the battery B are integrated into one chip, a small bolt 12A, nut 12B, cap 12C, collar 12D, flange The fastener 200 can be compactly accommodated in the fastener 200 and the like, and heat resistance, earthquake resistance, waterproofness, and disturbance noise countermeasures are enhanced. Furthermore, according to the transmitter built-in fastener 300, since a calculation unit CPU for calculating information E of various detection signals e and detection means TS for temperature, pressure, vibration and the like are added, the detection function and the computer function are exhibited, and the external Only one appropriate control can be directly performed on various control device members 72 serving as the receiver 71.

  Note that the detection means TS and the external receiver (various control device members) 71 are not restricted in use. For example, as shown in FIG. 2, the detection means TS includes detection means TS including a temperature sensor, a pressure sensor, a vibration sensor, and the like from the center hole portions 10A and 20A of the annular blades 10 and 20 toward the outer peripheral edge. A device provided with a detecting means TS comprising a pneumatic sensor or a thermocouple temperature sensor in the tire 4, a thing provided with a detecting means TS comprising a thermocouple temperature sensor in the boiler tank 5, and other various devices and units 6 Becomes the object. The external receiver (various control device members) 71 also appropriately controls the annular blades 10 and 20, the tire 4, the boiler tank 5, the devices / units 6 of various devices, and the like. That is, the detection means TS and the external receiver (various control device members) 71 are not limited by their use, the type or shape of the article, and any device or device that can be fitted with the transmitter built-in fasteners 200 and 300. Adaptable to units.

  According to the transmitter built-in fasteners 200 and 300, an A / D converter that receives various detection signals from the detection means and digitizes them in the fasteners such as bolts, nuts, caps, collars, flanges, etc. and external reception The transmitter and battery that transmit to the instrument are built in, and the above various detection signals are relayed to other control members, so that the transmitter built-in fastener for tires, grindstones, cutters, various devices, all other parts and articles If it is installed, it will function as a relay device that receives various normal and abnormal detection signals transmitted from all parts and transmits them to an external receiver using an A / D converter that digitizes the various detection signals. . Furthermore, if detection means TS and a calculation unit are added in the fastener, detection of various detection signals and calculation processing of the detection signals are transmitted to the external receiver, so that it has detection and information processing capabilities and is accurate to the external receiver. Information transmission, simplification of external receiver, and cost reduction effect.

  In the third embodiment of the present invention, FIG. 3 shows a cross section of a holding device (tool holder or arbor) 100 for the annular blades 10 and 20 using the fastener 200 with a built-in transmitter. A holding device (tool holder or arbor) 100 for the annular blades 10 and 20 enables the insertion portion 1 to be attached to and detached from the connection hole S1 of the main shaft S, and an annular blade (for cutting) to the tip attachment portion 3 connected to the middle abdomen 2. A blade piece C) 10 and an annular blade (grinding grindstone) 20 are detachably attached. The attachment means is such that the flange portions 11 and 21 fitted in the center hole portions 10A and 20A of the annular blades 10 and 20 are fitted to the tip attachment portion 3, and the male screw 12N of the fastener 12 is replaced with the female screw of the tip attachment portion 3. Screw on 3A and fix. Detection means TS including a thermocouple temperature sensor, a pressure sensor, a vibration sensor, and the like is built in from the center hole portions 10A and 20A of the annular blades 10 and 20 toward the outer peripheral edge. The detection means (thermocouple SS, thermistor, thermal element, temperature sensor, optical fiber, etc.) is used in the flanges 11 and 21 that are inserted into the inner diameters of the center holes 10A and 20A of the annular blades 10 and 20. ) Annular blade side connection terminals P1 and P2 that are output ends of the detection signal e from the TS are provided.

  As shown in FIGS. 4 and 5, there are various embodiments of the fastener 12 for fitting and tightening the annular blades 10 and 20 to the tip mounting portion 3. First, it replaces with the bolt 12A with a hook, and in another Example, the A / D converter 50 which digitizes the detection signal e, the transmitter 60, and the battery B are incorporated in this inside. Cap side connection terminals P3 and P4 that serve as input ends for introducing the detection signal e to the A / D converter 50 provided therein are provided on the side surface of the flanged bolt 12A. When terminals 10 and 20 are fastened, both terminals P1, P2 and P3, P4 are connected. The relational structure between the terminals P1, P2 and P3, P4 will be described with reference to FIG. The annular blade side connection terminals P1 and P2 of the annular blades 10 and 20 have different radii r1 and r2 from the center O on the side surfaces of the flange portions 11 and 21 and correspond to outer diameter positions of the radii r1 and r2. A ring-shaped (with slip ring function) cap-side connection terminals P3 and P4 are provided at the outer diameter position of the attached bolt 12A. Thus, when the hooked bolt 12 is screwed into the female screw 3A of the tip mounting portion 3, both terminals P1, P3, P2, and P4 are reliably connected regardless of the rotational position of the hooked bolt 12A. Of course, the terminals P1, P2, P3, and P4 may be pin terminals.

  Thus, the detection signal e is processed by the information E and transmitted to the external control unit 70 wirelessly from the transmitter 60 in the flange bolt 12A. Then, the information E is sent from the external control unit 70 to the NC control device 80, and the rotational speed of the spindle S, the cutting / feeding speed of the workpiece W with respect to the surface to be ground / machined surface, etc. are adaptively controlled. Yes.

  The temperature, pressure, vibration, etc. detecting means TS is inserted into the small hole h opened in the outer diameter direction from the central hole portions 10A, 20A of the annular blades 10, 20, and the thermocouple etc. serving as the joint tip. The sensor SS is built in on the outer peripheral surface. As a result, the temperature, pressure, vibration, etc. of the outer peripheral surfaces of the annular cutting tools 10 and 20 and the processing point of the workpiece can be directly sensed, and this information E is output to the A / D converter 50. And with the wear of the blade piece C and the outer peripheral surface of the grindstone, the thermocouple sensor SS is worn, and the blade piece C and the outer peripheral surface of the grindstone can always be kept flush. The annular cutting tool 10 has cutting blades C arranged on the outer periphery of a disk. Although not shown in the drawing, the disk-shaped grinding wheel 20 has a lower granular density on the center side and a higher granular density on the outer peripheral side, and penetrates the grindstone to discharge the coolant liquid radially to the outer peripheral surface. Consideration is given to increase the radiation efficiency, suppress the temperature rise of the workpiece machining point and the annular cutting edge in contact with it, and realize tool life and high quality machining of the workpiece.

  Subsequently, each embodiment of the fastener 12 will be sequentially described. First, in FIG. 4B, the fastener 12 is a nut 12B. As described above, the annular blades 10 and 20 are fitted into the tip mounting portion 3 and tightened in the nut 12B. The A / D converter 50, the transmitter 60, and the battery B to be digitized are incorporated. The tip mounting portion 3 is a bolt 3B, and when the annular blades 10 and 20 are fastened with a nut 12B, the terminals P1 and P3, P2 and P4 are connected in the same reverse relationship with the brazed bolt 12A. Since there is, explanation is omitted. Details are illustrated in FIG.

  FIG. 4 (c) shows the fastener 12 as a cap 12C. As described above, the annular blades 10 and 20 are attached to the tip attachment portion 3 and fastened to the fastener 12 for fastening. Used. The cap 12C includes an A / D converter 50, a transmitter 60, and a battery B that digitize the detection signal e. When the cap 12C is fitted to the fastener 12 fastened to the tip mounting portion 3 by appropriate known means (for example, swivel engagement with a pin and an L-shaped slit), both terminals P1 and P3, P2 and P4 are connected. Is done. Since this connection configuration is the same as that of the flanged bolt 12A, description thereof is omitted. Details are illustrated in FIG.

FIG. 4 (d) shows the fastener 12 as a collar body 12D (of course, a flange having an equivalent structure). As described above, the fastener 12 is shown in FIG. ), The terminals P1 and P2 are inverted toward the tip mounting portion 3, and the collar body 12D is fitted into the flange portions 11 and 21 from the tip mounting portion 3 side. Are fitted into the tip mounting portion 3 of the insertion portion, and the terminals P1 and P3, P2 and P4 are combined and fixed together. Note that the terminals P3 and P4 of the color body are provided on the small diameter side of the color body as shown by dotted lines. Then, the male screw 12N is screwed and fastened to the female screw 3A of the tip mounting portion 3, and the annular blades 10 and 20 are fixed to the tip mounting portion 3. The collar body incorporates an A / D converter 50, a transmitter 60, and a battery B, and is provided in the annular blade on both side surfaces of the annular blades 10, 20 and the collar body 12D. Since the grindstone side connection terminals P1, P2 serving as the output ends of the detection means ST and the cap side connection terminals P3, P4 serving as the input ends of the A / D converter provided in the collar body are provided. An annular cutting tool is connected to the mounting portion at the time of fastening.
The connection configuration of both terminals P1 and P3, P2 and P4 is the same as that of the nut body 12B. Since the color body 12D includes the A / D converter 50, the transmitter 60, and the battery B that digitize the detection signal e into information E, the external control unit 70 is wirelessly connected to the transmitter. Propagate information E to

  The tool holding device 100 using the transmitter built-in fastener according to the third embodiment is configured as described above and operates as follows. The detection means TS for temperature, pressure, vibration and the like is built in from the center hole portion of the annular blades 10 and 20 toward the outer peripheral edge, and the temperature, in the flange portions 11 and 21 inserted into the center hole portion of the annular blades, A detection signal e from the detection means TS such as pressure and vibration is output to the annular cutting tool side connection terminals P1 and P2 serving as the output ends. Here, the fastener 12 is information received by the A / D converter 50 that digitizes the detection signals e from the connection terminals P3 and P4 such as the flanged bolt 12A or nut 12B or cap 12C or collar body 12D or flange. E, and the information E is propagated from the transmitter 60 to the external control unit 70 wirelessly.

  As a result, the tip of the sensor is built in the outer peripheral edge of the annular cutting tools 10 and 20, and the temperature, pressure, vibration, etc. of the cutting edge C, the outer peripheral surface of the grinding wheel and the workpiece W can be directly detected. The processing point and the temperature, pressure, vibration and the like of the annular cutting edge in contact with the processing point and fine movements such as temperature, pressure and vibration are detected quickly. Then, the information E is instantaneously transmitted from the transmitter 60 to the external control unit 70 wirelessly, and accurate temperature control of the processing point is executed. That is, the information E is sent from the external control unit 70 to the NC control device 80, and the rotational speed of the spindle S, the cutting / feeding speed of the workpiece W with respect to the ground / cut surface, and the like are adaptively controlled. As a result, tool life and high quality machining of the workpiece are realized.

  In the tool holding device 100 using the transmitter built-in fastener according to the third embodiment, in particular, the fastener 12 that can be fastened and separated from the annular blades 10 and 20 is provided with a brazed bolt 12A or a nut 12B or a cap 12C. Is a collar body 12D or flange, into which internal processing signals of the workpieces in the annular cutting tools 10 and 20 and detection signals e such as temperature, pressure, vibration, etc. of the annular cutting edge in contact therewith are input. Since the information E is transmitted from the transmitter 60 to the external control unit 70 wirelessly from the transmitter 60, the information E is sent from the external control unit 70 to the NC control unit 80, and the spindle The tool life and high quality machining of the workpiece can be realized by adaptively controlling the rotation speed of S and the cutting / feeding speed of the workpiece W on the surface to be ground / machined surface.

  Furthermore, since the A / D converter that digitizes the signal from the detection means, the transmitter, and the battery are built in the cap, bolt, nut, collar, flange, and the like as the fastener, a tool holder with a built-in sensor In addition, in the arbor, the cost increase factor of the cutter and the grinding wheel serving as the annular cutting tool is minimized, and the improvement of the tool holder or the arbor and the special specification are unnecessary. In addition, the battery can be easily recharged and maintained easily, such as caps, bolts, nuts, collars, flanges, and other fasteners. As a result, high-precision operability for cutting and grinding can be dramatically improved. .

  Although the present invention has been described with respect to the tool holder in the cutter and grinding wheel with a built-in transmitter, an arbor to which the tool is attached can also be grasped as this object. Furthermore, although the working tool and the disk-shaped grinding wheel provided with the blade piece on the outer periphery of the disk serving as the annular cutting tool have been described in the embodiment, it can be applied to various machining tools. is there. Furthermore, the fastener 12 is not limited to the design change example such as the brazed bolt 12A, the nut 12B, the cap 12C, the collar body 12D, the flange or the like, and various forms are possible, and both connection terminals P1 and P3 are possible. , P2 and P4 can be changed in design. Further, the cutting fluid or the grinding fluid may be ejected from the small holes h opened in the annular blades 10 and 20 by a center through method or the like.

DESCRIPTION OF SYMBOLS 1 Insertion part 2 Middle abdominal part 3 Tip attachment part 3A Female screw 3B Male screw 4 Tire 5 Boiler tank 6 Various apparatus apparatus / unit 10 Annular blade 20 Grinding wheel 10A, 20A Center hole part 12 Fastening tool (clamping bolt)
12A Bolt 12B Nut 12C Cap 12D Color body (Flange)
12N Male thread 11 Flange 50 A / D converter 60 Transmitter 70 External controller 71 External receiver 72 Various control device members 80 NC controller 100 Holding device with built-in transmitter (tool holder)
200, 300 Transmitter built-in fastener B Battery C Blade piece CPU Calculation unit e, E Signal / information M Spindle motor N Connector S Spindle SS Thermocouple sensor TS Detection means (temperature sensor) for temperature, pressure, vibration, etc.
W Work

Claims (9)

An insertion part can be attached to and detached from the connecting hole of the main shaft, and an annular blade is detachably attached to the tip attachment part of the insertion part by a fastener, and the temperature and pressure toward the outer peripheral edge of the center hole of the annular blade In the annular blade holding device incorporating the vibration detecting means, the temperature, pressure and vibration signals from the detecting means installed in the flange portion to be inserted into the central hole portion of the annular blade are provided in the fastener. The A / D converter, the transmitter, and the battery that are digitized in response to this are built-in, and the detection means and the A / D converter are connected when the fastener is fastened to the tip mounting portion. An apparatus for holding an annular blade by a transmitter built-in fastener , wherein information is propagated to a control unit . An annular blade side connection terminal serving as an output end of a detection means provided in the annular blade and an A / D provided in the cap of the fastener on both sides of the fastening of the annular blade and the cap-shaped fastener. The holding | maintenance of the annular blade by the fastener with a built-in transmitter according to claim 1, wherein a cap-side connection terminal serving as an input end of the converter is provided, and the annular blade is connected to the tip mounting portion with a fastener. apparatus. The fastener includes a hooked bolt that fastens a bolt to the nut hole of the tip mounting portion of the insertion portion, and an A / D converter, a transmitter, and a battery are incorporated in the hook of the hooked bolt. On both side surfaces of the annular blade and the flange of the flanged bolt, the A / W provided in the flange of the grindstone side connection terminal serving as the output end of the detecting means provided in the annular blade and the flanged bolt 2. An annular cutting tool using a transmitter built-in fastener according to claim 1, wherein a cap-side connection terminal serving as an input end of the D converter is provided, and the annular cutting tool is connected to the tip mounting portion with a bolt with a flange. Holding device. The fastener includes a nut body that fastens a female screw to a male screw of a tip attachment portion of the insertion portion, and an A / D converter, a transmitter, and a battery are built in the nut body, and the annular blade tool On both side surfaces of the nut and the nut body, a grindstone side connection terminal serving as an output end of a detecting means provided in the annular blade and a cap side connection serving as an input end of an A / D converter provided in the nut body 2. The holding device for an annular blade by a transmitter built-in fastener according to claim 1, wherein a terminal is provided, and the annular blade is connected to the tip mounting portion by a nut body at the time of fastening . The fastener is configured to fit the inner hole of the collar body to be inserted into the flange portion of the annular blade tool into the tip mounting portion of the insertion portion, and screw and fasten the male screw to the female screw of the tip mounting portion. An A / D converter, a transmitter, and a battery are incorporated in the collar body, and a grindstone-side connection terminal serving as an output end of detection means provided in the annular blade is provided on both side surfaces of the annular blade and the collar body. And a cap-side connecting terminal serving as an input end of an A / D converter provided in the collar body, and an annular blade is connected to the tip mounting portion when fastened. An annular blade holding device by a fastener. 6. The holding device for an annular blade by the transmitter built-in fastener according to any one of claims 1 to 5, wherein the annular blade is formed by arranging cutting pieces for cutting on an outer periphery of a disk. . The said annular blade is a disk-shaped grinding wheel, The holding | maintenance apparatus of the annular blade by the transmitter built-in fastener as described in any one of Claims 1-5 characterized by the above-mentioned . 8. The holding device for an annular blade by the transmitter built-in fastener according to claim 7, wherein the disc-shaped grinding wheel has a lower granular density on the center side and a higher granular density on the outer peripheral side . The temperature, pressure, or vibration detecting means is a temperature sensing element comprising a thermocouple, an infrared temperature element, a radiation temperature element, a thermistor, a thermal element, and an optical fiber. The holding | maintenance apparatus of the annular cutting tool by the transmitter built-in fastener of description .

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