WO2004048884A1 - タッチセンサ - Google Patents
タッチセンサ Download PDFInfo
- Publication number
- WO2004048884A1 WO2004048884A1 PCT/JP2003/014530 JP0314530W WO2004048884A1 WO 2004048884 A1 WO2004048884 A1 WO 2004048884A1 JP 0314530 W JP0314530 W JP 0314530W WO 2004048884 A1 WO2004048884 A1 WO 2004048884A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- pipe
- hall
- panel
- sensor according
- Prior art date
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 12
- 238000000465 moulding Methods 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001474791 Proboscis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
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- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 102220082839 rs149700042 Human genes 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
Definitions
- a cutting position of a cutting edge of a cutting tool (a tool, a drill, etc.) in an automatic machine tool controlled by a computer such as a machining center jig pole is determined.
- the present invention relates to the construction of a mechanism that enables sensing of extremely small displacement (micron or submicron).
- the evening sensor is used as a monitoring instrument that constantly maintains the tip of the blade at a predetermined height from the work table surface of the machine tool as a reference position, and is generally rotatably supported by a hinge.
- a mechanical action that switches the electrical contact from ON to OFF by a snap action such as a toggle mechanism.
- the reference position of the cutting edge is detected by a signal output that directly cuts off the light beam by the cutting edge, and the fluctuation due to the wear of the cutting edge is corrected.
- the contact load that activates the touch sensor by mechanical means is subject to the resistance due to the counteraction caused by moving the actuator lever and snapping the contact, and the urging force is large enough to overcome it. For example, 100 to 300 g ⁇ is required. Therefore, it is not possible to obtain a stable and reproducible reference position without accurate contact pressure.
- the drill when processing a drill with a diameter of 0.1 mm or less and a diameter of 0.1 mm using a diamond drill, the drill itself buckles and bends when the Yutzuchi sensor is operated with the above contact load. Since the position setting becomes unstable and reproducibility is impaired, an extremely light contact pressure evening sensor is required.
- an object of the present invention is to provide a contact force as an operating force of 0.5 gf or less, a reproducibility sensitivity or accuracy of the order of ⁇ 0.5 z, and to be detachable from a work table surface of an automatic machine tool.
- an evening sensor includes a first connecting member 18 integrally formed with a pedestal 22, and one end with respect to both ends of the first connecting member 18.
- a plate panel 16 fixed to each other and arranged in parallel with each other, a second connecting member 19 for connecting the other end sides of the plate panel 16 to each other, and a magnetic pole on the leaf spring 16 side
- a magnet 25 installed in one of the following forms; a pipe 30 attached to each panel panel 16 in parallel with a magnetic pole direction of the magnet 25; and a magnet near the boundary between the magnetic poles of the magnet 25.
- each of the panel panels 16 is a rigid part having rigidity on the base end side and a flexible part having elasticity on both ends. It is characterized by having.
- an elastic body 38 for canceling the influence of gravity acting on the second connecting member 19 is provided.
- one end side is fixed to the first connecting member 18, and the detecting means 26 or the magnet 25 is provided at the other end side, and the supporting member is inclined from the one end side to the other end side.
- the magnet 25 or the detecting means 26 is provided on the second connecting member 19. Installed.
- holes are provided in the portions 16 and 19 that are displaced due to an external force applied to the pipe 30.
- a hard anvil 34 receiving the external force is provided at one end of the pipe 30.
- a notification member 14 is provided for notifying whether or not a signal is output from the detection means 26.
- knock holes 22 e were provided in at least two places on the bottom surface of the pedestal 22.
- the pipe 30 is provided with a regulating member 35 for regulating the displacement of the pipe 30 main body, or the other end of the pipe 30 is provided so as to regulate the displacement of the pipe 30 main body. .
- the evening sensor according to the present invention detects the minute displacement of 0.1 mm or less of the small magnet which is displaced integrally with the parallel displacement of the anvil due to the light load of 0.5 gf or less by the Hall IC and detects the electric circuit. Open / close control.
- the parallel displacement is basically based on a cantilever mechanism of a parallel link having a double structure of the same shape of the panel panel as a constituent element, and each of the panel panels has a rectangular planar shape.
- the hollow frame is made of a polyimide thin plate with the female arms extending in the longitudinal direction from the four corners in the longitudinal direction in parallel with the same length.
- An aluminum alloy thin plate having ribs protruding along an inner peripheral edge defining a shape space was bonded to the skeleton, and the skeleton portion was made a rigid body.
- the plate panel connecting member on the fixed end side of the cantilever mechanism is fixed to a support block erected at the center of the pedestal through a hollow portion of the plate panel.
- the panel panel connecting member on the free end side in the cantilever mechanism is formed into a U-shaped cross section by bending an aluminum alloy thin plate, and is further lightweight-drilled by perforation.
- a small-diameter pipe material perpendicular to the plate panel is penetrated and joined as a pipe, and the small magnet is fixed to a predetermined position near the center of the free end side connection member, while being fixed to the fixed end side connection member.
- the Hall IC was arranged at the free end of the support member extended in such a manner as to face the small magnet.
- the support member prevents elastic deformation inclined from the fixed position toward the pedestal with the adjustment rod screwed on the support block, and forcibly displaces the Hall IC to a position facing the small magnet.
- the fine adjustment in the axial direction was made possible by the screw action of the adjusting rod. Further, a signal lamp was fixed to the support member.
- a molded housing surrounding the whole of the cantilever mechanism is provided, and a fitting step peripheral wall in which an inner surface of a bottom opening of the molded housing is closely fitted is formed on an upper surface of the pedestal.
- a flanged boss facing the washer, and a bush for abutting and positioning on the free end of the parallel link are fixedly provided inside.
- the anvil and the washer are fixedly attached to a large-diameter pipe fitted to the outer diameter of the small-diameter pipe as the pipe, and the anvil is fitted and removed from the pipe, and the washer is located below the pipe with the washer.
- the displacement was regulated.
- an elastic body is stretched between the fixed end side and the free end side of the parallel link to act on the free end side structure. The inertial movement was suppressed by biasing in the direction to offset the effect of the gravitational force.
- the The pedestal was provided with an extended portion projecting from the peripheral wall of the fitting step portion to the outside of the eight housing, and a knock hole was formed in at least an appropriate place on the bottom surface.
- the parallel link mechanism of the cantilever of the parallel plate panel made of a thin polyimide plate translates the anvil in contact with the cutting edge in parallel.
- the movable part of the parallel plate spring is made lighter with a thin aluminum alloy plate and a small-diameter tube, so that the contact height is practically 0.3 gf or less and almost no load is applied to the proboscis. Can be set.
- the initial position setting of the cutting edge can be updated by detecting the displacement with a reproducibility of ⁇ 0.5 or less.
- the parallel leaf spring has a hollow frame and a support block at the fixed end of the cantilever penetrated into this space, the entire sunset sensor can be compactly assembled.
- the weight of the movable portion of the parallel leaf spring is supported by the cantilevered wire, and is brought into contact with the bush fixed in the housing, so that the configuration is compact and the movable portion of the parallel plate panel is stably held. can do.
- the Hall IC support member normally holds the position displaced by the adjustment rod with the adjustment rod, the relative position between the Hall IC and the magnet is adjusted to the position that shows the optimum sensitivity by operating the screw part of the adjustment rod. Can be adjusted.
- the umbil is made white from the pipe, it can be easily replaced if it is worn or deformed.
- Such a push sensor can always be installed at a predetermined position on the work table by a knock hole formed in the pedestal, and can be easily connected to the extended portion protruding outside the housing by engaging a suitable clamp with a port. Can be fixed.
- the washer fixed integrally with the anvil abuts the flanged boss fixed to the top of the housing to limit the range of movement of the anvil.Also, the operation of the Hall IC can be visually recognized with a signal light. Exceeding the panel's elastic limit The degree of deformation can be prevented. Moreover, the magnet of the movable part and the hall of the sensing part
- FIGS. 1A and 1B show an embodiment of an evening sensor according to the present invention, wherein FIG. 1A is a side view, and FIG. 1B is a cross-sectional view taken along line BB of FIG.
- FIGS. 2A and 2B are illustrations of a panel panel constituting a parallel link in the evening sensor according to the present invention.
- FIG. 2A is a plan view
- FIG. 2B is a cross-sectional view taken along the line BB of FIG. It is an enlarged view of the part circled with the symbol C of (b).
- Fig. 3 is a bottom view taken along the line III-III in Fig. 1 (a).
- FIG. 4 is a perspective view of the housing shown in FIG.
- FIG. 5 is an operation explanatory view showing the evening sensor according to the present invention with the housing and the signal light removed.
- FIG. 6A and 6B are explanatory views of a cantilever mechanism using two parallel leaf springs in the evening sensor according to the present invention.
- FIG. 6A is a partial view of the embodiment
- FIG. 6B is a schematic view.
- FIG. 7 is a side view enlarging and illustrating the relationship between the hall IC and the magnet in the evening sensor according to the present invention.
- FIGS. 1A and 1B show an embodiment of the evening sensor 10 according to the present invention, wherein FIG. 1A is a cross-sectional view of a side surface, and FIG. 1B is a cross-sectional view taken along line BB of FIG.
- Fig. 2 is a plan view showing one of two identical parallel-panel panels 16 having the same shape and dimensions and being mirror-symmetrically opposed to each other.
- (B) is a BB line of (a).
- (C) is an enlarged view of the part circled with the symbol C in (b).
- FIG. 3 is a bottom view taken along the line III-III in FIG. 1 (a).
- Sa FIG. 4 is a perspective view of FIG.
- FIG. 5 is an operation explanatory diagram showing the evening sensor 10 of FIG. 1 with the housing 12 and the signal light 14 removed.
- the cantilever mechanism 15, which is the main member of the evening sensor 10 is a kind of parallel link mechanism (see FIG. 6 (b)) composed of two identically shaped panel panels 16, 16.
- the panel panel 16 has a rectangular hollow frame body 16a and a flexible arm 16b, which is a flexible part, extending in parallel from the four corners in the longitudinal direction from each of the four corners.
- the member is formed of a thin polyimide plate (plate thickness about 75 im).
- the aluminum alloy thin plate 17 which is a rigid part, is molded into the same hollow frame plane shape as the frame 16a, and ribs 17a cut and raised along the inner peripheral edge are projected and provided. It is aligned and bonded to each leaf spring frame 16a (see Figs. 2 (b) and 2 (c)).
- the frame 16a of each panel panel 16 becomes a rigid structure, and only each elastic arm 16b functions as a movable portion.
- the two identical panel panels 16, 16 configured in this manner are vertically and horizontally separated by an appropriate distance in parallel, and mirror-symmetrically opposed to each other to connect a rigid body perpendicular to each panel panel 16.
- Members 18 and 19 are joined at both ends.
- the vertical displacement at the free ends of the parallel plate panels 16, 16 is performed by the bending of the four unilateral arms 16b extending from the frame 16a.
- the parallel link mechanism consisting of four rigid rods a, b, c, and d shown schematically in Fig. 6 (b) is equivalent to Fig. 6 (a)
- the joint k in Fig. 6 (b) is In Fig. 6 (a), it corresponds to the female arm 16b circled by a two-dot chain line.
- the fixed end side connecting member 18 of the parallel plate panel 16 in the cantilever mechanism 15 is made of an iron-based material in consideration of approximating the expansion coefficient of the processing machine to be mounted and used. A molded block is desirable, but the weight may be reduced by using an aluminum alloy or a synthetic resin according to the purpose of use.
- the fixed end side connecting member 18 is provided with mounting surfaces on the upper surface 18b and the lower surface 18c on both sides of the center pedestal 18a to fix the ends of the female arm 16b of the parallel plate panel 16 by screw connection.
- the two columns 18 d and 18 d extend.
- the two pillars 18d, 18d have a sufficiently long extension above the seating surface 18e of the central pedestal 18a, and the seating surface 18e is a hall IC support member to be described later.
- the mounting seat is 20 (see Fig. 1 (b)).
- the iron-based molded support block 24 is fixed to the mounting base 22 a protruding from the upper surface of the iron-based molded base 22 formed by the same reason as above by screwing from the lower surface (see FIGS. 1 and 3). ).
- the support block 24 after the upright portion 24a from the mounting seat 22a penetrates the hollow rectangular space formed in the parallel plate panel 16 located on the lower side,
- the horizontal beam 24b extends in parallel with the mounting seat 22a at an intermediate position that is separated from both the upper and lower parallel plate panels 16 and 16.
- the cross beam 24 b is inserted into a noble hole 18 f formed in the center pedestal 18 a of the fixed end side connection member 18, and the column 18 d serving as a fixing surface of the parallel leaf spring 16 is inserted.
- the upper and lower surfaces 18b and 18c are fixed in parallel with the mounting seat 22a.
- the free end of the cantilever mechanism 15 is elastically deformed and supported at a position where the elastic force of the elastic arm 16 b of the upper and lower two parallel plate panels 16 is balanced by the action of gravity m. (See Figure 6 (a)).
- the free end side connecting member 19 of the parallel plate panel 16 in the cantilever mechanism 15 is bent outwardly on the upper and lower sides of the aluminum alloy thin plate to reduce the weight. It is processed and joined to the free ends of the elastic arms 16 b of each of the upper and lower parallel plate panels 16. That is, the free end side connecting member 19 provides rigidity by forming a U-shaped cross-section structure having two parallel upper and lower surfaces 19a and 19b, and is suitable for light weight siding. Holes 19c and 19d having different shapes are formed in the vertical surface 19e.
- a pocket 19f that matches the outer shape of the small-sized rare-earth magnet 25 formed in a rectangular parallelepiped with the upper surface side as the S pole, and bend the lower side at a right angle.
- Glue magnet 25 to 19g of raised seat surface The surface 25a having SN poles at the top and bottom faces the sensing surface 26a of the Hall IC 26 fixed to the free end of the Hall IC support member 20 installed inside the pocket 19f.
- the free end side of the parallel leaf spring 16 has a knock hole 16 c formed in the free end terminal portion of each free end 16 b and the upper surface 19 a of the free end side connecting member 19. Positioning is performed with the knock holes 19 h drilled at both ends of the lower surface 19 b, respectively, and the upper end 19 a of the free end side connecting member 19 at the free end terminal of the upper and lower free end elastic arms 16 b. And the lower surface 19b are bonded. As a result, the free ends of the upper and lower two parallel plate panels 16 are connected by the connecting member 19 to form the movable portion 28 of the cantilever mechanism 15.
- the movable part 28 is made to pass through the central part of the upper surface 19 a and the lower surface 19 b of the free end side connecting member 19, and the pipe 3 perpendicular to the mounting seat 22 a of the molding base 22 is made. 0 is glued.
- a stainless steel thin tube is suitable as the pipe 30.
- the inside of the tube is hollow to reduce the weight of the connecting member 19 side.
- the upper end of the pipe 30 has a length protruding from a housing 12 described later, and is related to the setting of the reference height H from the work table surface F.
- the upper surface of the pipe 30 is formed of pure aluminum to provide a flat contact surface 32 that directly contacts a cutting edge (not shown) to be measured and determines a reference height, and the surface is formed of sapphire,
- An anvil 34 made of high-hardness material such as ruby and diamond is detachably mounted. That is, the anvil 34 is formed by bonding a stainless steel thin tube sleeve 34 a having a large diameter that slidably fits the outer diameter of the stainless steel thin tube forming the pipe 30 together with a washer 35 that functions as a stop.
- the lower end of the pipe 30 may be set as a stopper at a distance from the upper surface of the molding pedestal 22 to limit the downward movement range of the movable part 28.
- the Hall IC support member 20 has an elastic portion 20a to which the terminal portion is fixed to the seating surface 18e of the center 18a of the fixed end side connecting member, and a longitudinal direction.
- Rigid part 20 b formed by bending both lines downward and forming the structure
- An adhesive seat 20c for a hole IC 26 formed by bending the end downward is provided.
- the elastic portion 20a is forcibly deformed, and the rigid portion 20b is tilted downward at a slight angle (for example, 40) in advance as shown by a two-dot chain line in the figure, and the central pedestal 18b is inclined. It is fixed to the seat surface 18 e of a.
- the rigid portion 20b of the slightly inclined hall IC support member 20 is supported by the upper end 36a of the adjustment rod 36 screwed into an appropriate position on the upper surface of the support block 24a.
- the optimal operation position of the Hall IC 26 can be finely adjusted by the vertical movement of the adjustment IC 36 in the axial direction by the screw action.
- the support block 24 is fixed to the base 22.
- the head 36b that operates the axial movement of the adjustment door 36 is hidden by the base 22 from outside.
- the inoperable state of the hole IC 26 is prevented from being intentionally changed.
- a signal light 14 using a light-emitting diode is fixed to the Hall IC support member 20 so that the Hall IC 26 is sensitive to a preset threshold magnetic potential.
- the operating signal generated by the lamp is visible even when the signal lights 14 are lit.
- the connecting members 19, the magnets 25, the pipes 30, the amp pills 34, and the connecting members 19 in the parallel plate panel 16 are provided.
- the base wire 38 is fixed to the hole IC support member 20 with the base end 38 a bent at the free end 38 b, and just below the upper surface 19 a of the connecting member 19 on the extension of the positive wire 38.
- An upward biasing force t (arrow) is applied through the two through holes 19 i, 19 i drilled correspondingly.
- the urging force t is slightly larger than the weight m, and the upper surface 19 a of the connecting member 19 is lightly pressed against the lower surface 40 a of the bush 40 fixed to the inner surface of the housing 12.
- the parallel plate panel 16 is held almost horizontally and stably, and the position of the magnet 25 in the height direction is fixed. Can be specified.
- the molded housing 12 surrounding the entire cantilever mechanism 15 will be described.
- the molded housing 12 has a large-diameter opening 42 through which the position of the transparent cover window 41 and the pipe 30 can be adjusted so that the signal lamp 14 can be visually recognized.
- a flanged boss 43 facing the washer 35 attached to the anvil 34 is adhered to the outside of the large-diameter opening 42, and the lower part of the anvil 34 is brought into contact with the washer 35 and the boss 43a.
- Limit the range of movement A bush 40 is fixed inside the large-diameter opening 42, and a pipe 30 is loosely fitted therein.
- the movable part 28, that is, the upper limit of the moving range of the magnet 25 is regulated to form the anvil 34. Set the reference position.
- a wire outlet 45 with a rubber cap 44 is provided on a side wall 12 b of the molded housing 12 facing the fixed end side connecting member 18 of the cantilever mechanism 15. Further, the outer peripheral surface 12 c of the side wall surrounding the molded housing 12 is flush with the outer peripheral edge 22 b of the molded pedestal 22. A fitting step peripheral wall 22 c is formed inside the outer peripheral edge 22 b of the molding base 22, and a fitting inner surface 12 d formed at the bottom opening of the molding housing 12 fits tightly.
- the lower surface 2 2 d of the molding pedestal 22 has a counterbore hole for sinking the head of the port 24 c connecting the molding support block 24 and a knock hole 22 e for positioning. Is established. Further, an extension 22 f extending from the fitting step peripheral wall 22 c to the outside of the side wall outer peripheral surface 12 c of the molded housing is formed at a part of the outer peripheral edge 22 b of the pedestal 22. Then, it engages with a clamp 46 as shown in FIG. 1 (b) and FIG. 4, passes through a port 47 through a port hole 46a formed in the upper surface, and is screwed into the worktable surface F. Screw it into the engraved screw hole 48, and fix the evening sensor 10 to the worktable surface F.
- a sunset sensor 10 is installed instead of the block gauge that sets the reference height of the drill bit. Because of this, it can always be installed in the same position Dowel pin 49 is planted at the installation position on work table F so that screw hole 48 is threaded.
- the fastener 46 is engaged with the extended portion 2 2 f of the molding pedestal 22 extending outward from the side wall outer peripheral surface 12 of the molding housing 12, and the port 47 is attached. It is inserted into the port hole 46a drilled on the upper surface of the clamp and screwed into the screw hole 48 on the worktable F. Tighten the port 47 and press the extended portion 22 f of the pedestal 22 against the worktable F with the clamp 46 to fix the evening sensor 10 in place.
- the reference height H of the upper surface of the anvil 34 from the work table F is automatically set.
- a drill (not shown) is moved from the drilling position to a position just above the center axis of the anvil 34 of the touch sensor 10.
- the drill is gradually lowered to bring the tip of the drill into contact with the contact surface (reference surface) 32 of the anvil 34, and push the pipe 30 downward.
- the weight of the movable part 28 of the cantilever mechanism 15 is almost in equilibrium with the combined biasing force of the parallel plate panel 16 and the compensating elastic wire 38, and the tip of the drill moves the movable part 28 through the anvil 34. Since the load to be displaced downward can be less than 0.5 gf, the concern that the drill will buckle is eliminated.
- the surface 25 a provided with the SN pole of the magnet 25 fixed to the free end side connecting member 19 constituting the movable portion 28 on the upper and lower sides is It faces the Hall IC sensing surface 26a at a close position in the region of the magnetic field M.
- the magnetic field formed by the magnet 25 has a magnetic potential of 0 at a plane VO perpendicular to the axis of the magnet 25 at the same distance from the magnetic poles S and N, and the magnetic force gradually increases toward the magnetic poles.
- the Hall IC 26 sets the threshold value that responds to the magnetic force to, for example, 20 gauss (S20G) on the S pole side, and the magnet 25 descends together with the connecting member 19 integrated with the pipe 30.
- the Hall IC 26 transmits a closing signal to a connected electric circuit (not shown).
- the computer of the machine tool updates the initial setting of the reference position.
- the signal light 14 of the light-emitting diode also receives this signal, lights up and blinks Z, and notifies that the cutting edge has reached the reference position. By this operation, the wear of the cutting edge can be constantly monitored and compensated, and the reproducibility of the drilling depth can be suppressed to ⁇ 0.5 or less. Since the electric circuit is publicly known, the description is omitted.
- the evening sensor according to the present invention has been described with reference to the drawings.
- the present invention is not limited to the illustrated embodiment. It is expected that various changes in details and modifications such as reconfiguration of parts can be made without departing from the scope of the present invention.
- a drip-proof function can be added by closely covering the space between the washer 35 provided integrally with the anvil 34 and the flanged boss 43 with a thin soft rubber bellows.
- the conductive wire 38 that offsets the weight m of the movable part 28 can be replaced with a tension coil panel, a compression coil panel,) wire or piano wire, and those materials are also beryllium copper or phosphor bronze.
- the panel panel 16 is inclined and installed so as to be higher from the connecting member 18 toward the connecting member 19 side, and the panel panel 16 and the connecting member 19 etc.
- the panel panel 16 may be made horizontal by the action of its own weight.
- a magnetically sensitive semiconductor such as a magnetoresistive sensor may be used instead of the Hall IC 26, or a polyester resin may be used instead of polyimide for the elastic arm 16c.
- a flexible material such as a lumped metal can also be used.
- the aluminum alloy plate 17 may be made of, for example, stainless steel as a material, and may not have a plate shape.
- the installation positions of the magnet 25 and the Hall IC 26 may be interchanged. In this case, it is preferable that the closing signal from the Hall IC 26 be a radio signal because the weight of the connecting member 19 can be reduced.
- a speaker or the like is provided to turn on the signal lamp 14 in response to the closing signal, or to output a sound indicating that the closing signal has been received from the speaker in place of turning on or off.
- another notification means may be used to notify that the closing signal has been received.
- the present invention can be used for confirming a cutting position where a cutting edge of a cutting tool (a tool, a drill, etc.) in an automatic machine tool controlled by a computer such as a machining center or a jig polar is advanced.
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003284400A AU2003284400A1 (en) | 2002-11-28 | 2003-11-14 | Touch sensor |
US10/510,612 US7243439B2 (en) | 2002-11-28 | 2003-11-14 | Touch sensor |
EP03775822A EP1491851A4 (en) | 2002-11-28 | 2003-11-14 | TOUCH |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002345112A JP3795008B2 (ja) | 2002-11-28 | 2002-11-28 | タッチセンサ |
JP2002-345112 | 2002-11-28 |
Publications (1)
Publication Number | Publication Date |
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WO2004048884A1 true WO2004048884A1 (ja) | 2004-06-10 |
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PCT/JP2003/014530 WO2004048884A1 (ja) | 2002-11-28 | 2003-11-14 | タッチセンサ |
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US (1) | US7243439B2 (ja) |
EP (1) | EP1491851A4 (ja) |
JP (1) | JP3795008B2 (ja) |
CN (1) | CN100498203C (ja) |
AU (1) | AU2003284400A1 (ja) |
WO (1) | WO2004048884A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006062061A (ja) * | 2004-08-30 | 2006-03-09 | Daishowa Seiki Co Ltd | 工具位置検出装置 |
DE102006024680B4 (de) * | 2006-05-26 | 2016-04-28 | Leopold Kostal Gmbh & Co. Kg | Positionsmeßvorrichtung |
ATE524667T1 (de) * | 2007-02-23 | 2011-09-15 | Schaeffler Technologies Gmbh | Nehmerzylinder mit wegmesseinrichtung |
US20090095075A1 (en) * | 2007-10-12 | 2009-04-16 | Yevgeniy Vinshtok | Sensor housing |
JP5658883B2 (ja) * | 2010-01-29 | 2015-01-28 | 株式会社ブリヂストン | 非空気入りタイヤ |
JP5403524B2 (ja) * | 2010-12-08 | 2014-01-29 | レーザーテック株式会社 | 電池用電極材の厚さ測定装置、及び厚さ測定方法 |
CN104090309B (zh) * | 2014-07-09 | 2016-08-31 | 苏州博众精工科技有限公司 | 一种漏件检测机构 |
CN104154837B (zh) * | 2014-09-04 | 2017-08-18 | 中国工程物理研究院机械制造工艺研究所 | 一种基于标准心轴的四极杆组件装配装置 |
US9528824B2 (en) * | 2015-03-31 | 2016-12-27 | Mitutoyo Corporation | Tactile probing system |
CN105751005A (zh) * | 2015-10-20 | 2016-07-13 | 邓海程 | 数控机床对刀仪 |
CN109061530B (zh) * | 2018-06-13 | 2023-10-03 | 杭州永磁集团有限公司 | 磁体永久磁化检测装置及其测量控制方法 |
CN110244364B (zh) * | 2019-05-23 | 2024-06-21 | 深圳市爱康生物科技股份有限公司 | 一种样本载架检测装置 |
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- 2002-11-28 JP JP2002345112A patent/JP3795008B2/ja not_active Expired - Fee Related
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2003
- 2003-11-14 WO PCT/JP2003/014530 patent/WO2004048884A1/ja active Application Filing
- 2003-11-14 US US10/510,612 patent/US7243439B2/en not_active Expired - Lifetime
- 2003-11-14 EP EP03775822A patent/EP1491851A4/en not_active Withdrawn
- 2003-11-14 AU AU2003284400A patent/AU2003284400A1/en not_active Abandoned
- 2003-11-14 CN CNB2003801004334A patent/CN100498203C/zh not_active Expired - Fee Related
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US2384519A (en) * | 1943-04-26 | 1945-09-11 | Sheffield Corp | Gauging device |
JPS5298551A (en) * | 1976-02-12 | 1977-08-18 | Maag Zahnraeder & Maschinen Ag | Probing device for length measurement |
JPS6240755Y2 (ja) * | 1982-05-24 | 1987-10-19 | ||
JPS60119402A (ja) * | 1983-11-30 | 1985-06-26 | Fujitsu Ltd | 触覚装置 |
JPH0682238A (ja) * | 1992-08-31 | 1994-03-22 | Toshiba Corp | 三次元測定プロ−ブ |
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Also Published As
Publication number | Publication date |
---|---|
US20050231195A1 (en) | 2005-10-20 |
CN100498203C (zh) | 2009-06-10 |
AU2003284400A1 (en) | 2004-06-18 |
JP2004174678A (ja) | 2004-06-24 |
EP1491851A4 (en) | 2007-05-09 |
JP3795008B2 (ja) | 2006-07-12 |
EP1491851A1 (en) | 2004-12-29 |
CN1692267A (zh) | 2005-11-02 |
US7243439B2 (en) | 2007-07-17 |
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