WO2020090779A1 - チャックの爪の連結機構 - Google Patents
チャックの爪の連結機構 Download PDFInfo
- Publication number
- WO2020090779A1 WO2020090779A1 PCT/JP2019/042267 JP2019042267W WO2020090779A1 WO 2020090779 A1 WO2020090779 A1 WO 2020090779A1 JP 2019042267 W JP2019042267 W JP 2019042267W WO 2020090779 A1 WO2020090779 A1 WO 2020090779A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lock
- chuck
- actuating
- releasing
- hole
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/1627—Details of the jaws
- B23B31/16279—Fixation on the master jaw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16233—Jaws movement actuated by oblique surfaces of a coaxial control rod
- B23B31/16237—Details of the jaws
- B23B31/16245—Fixation on the master jaw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/39—Jaw changers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/19—Radially reciprocating jaws
- Y10T279/1986—Jaws
- Y10T279/1993—Jaws with means to facilitate jaw removal
Definitions
- the present invention relates to a chuck jaw connection mechanism for connecting a jaw to a master jaw provided on a chuck body.
- Patent Document 1 the mechanism shown in Patent Document 1 is known as a coupling mechanism for the above-mentioned chuck jaws.
- a master jaw to be inserted into the second guide groove of the body is inserted, and the locking means is arranged in this master jaw.
- the locking means includes a meshing member and a connecting piece, and the meshing member is formed with a rack that meshes with the rack of the jaw.
- the operating element for operating the locking means is housed in a cylindrical hole opened on the outer peripheral surface of the body. The operating element is configured to be movable and rotatable from outside the body using a handle. As a result, the rack of the meshing member of the lock means is engaged with the rack of the jaw inserted into the first guide groove, and the jaw is locked to the master jaw via the meshing member.
- an object of the present invention is to provide a chuck claw connection mechanism capable of quickly connecting a claw to a master jaw.
- the present invention is A chuck jaw connecting mechanism for connecting a jaw to a master jaw provided on a chuck body, A connecting member provided in the master jaw, which is movable between a connecting position for connecting to the claw and a separated position separated from the claw, A first elastic member for urging the connecting member toward the connecting position; An operating portion that moves the connecting member to the separated position; I will provide a.
- the connecting member has an engaging groove portion
- the actuating portion is an actuating member provided in the engaging groove portion so as to be able to move forward and backward, and an engaging position for advancing and engaging with the engaging groove portion of the connecting member, and a backward movement from the engaging position.
- An actuating member movable between an engagement releasing position for releasing engagement with the engaging groove portion, The connecting member may be located at the separated position when the actuating member is located at the engagement position.
- the operating portion is a lock releasing member movable between a first releasing member position in which the operating member is located at the engagement position and a second releasing member position in which the operating member is located at the engagement releasing position. And a second elastic member for urging the lock release member toward the second release member position. You may do it.
- the unlocking member moves the actuating member via a first transmission mechanism
- the first transmission mechanism is a first inclined groove portion provided on one of the actuating member and the unlocking member and a first inclined convex portion provided on the other, and extends along the first inclined groove portion. And a first inclined convex portion that engages with the first inclined groove portion, You may do it.
- An acute angle among angles formed by the extending direction of the first inclined groove portion and the first inclined convex portion and the moving direction of the lock releasing member is less than 45 °, You may do it.
- the chuck body is provided with a lock release hole into which the lock release member is movably inserted,
- the lock release hole is opened on the front surface of the chuck body, You may do it.
- a first seal member is mounted between the lock releasing member and the lock releasing hole at a front portion of the lock releasing hole, You may do it.
- the actuating portion further includes a lock member that is movable between a lock position that locks the actuating member located at the engagement position and a lock release position that unlocks the actuating member. You may do it.
- the lock holding member moves the lock member via a second transmission mechanism
- the second transmission mechanism is a second inclined groove portion provided on one of the lock member and the lock holding member and a second inclined convex portion provided on the other, and extends along the second inclined groove portion. And a second inclined convex portion that engages with the second inclined groove portion, You may do it.
- the chuck body is provided with a lock holding hole into which the lock holding member is movably inserted,
- the lock holding hole is opened on the front surface of the chuck body. You may do it.
- a second seal member is mounted between the lock holding member and the lock holding hole at a front portion of the lock holding hole, You may do it.
- the nail can be quickly connected to the master jaw.
- FIG. 2 is a view taken along line II of FIG. 1, showing a cross section of the chuck body.
- FIG. 3 is a view in III of FIG. 1, showing a state where the connecting member of the connecting mechanism is separated from the claw. It is a perspective view of the connection mechanism of FIG. It is the figure which expanded a part of V view of FIG. It is a figure which shows the state which the connection member of the connection mechanism of FIG. 3 was connected with the nail. It is a perspective view of the connection mechanism of FIG. It is the figure which expanded a part of VIII view of FIG. It is a figure which shows the state which clamped the workpiece.
- the chuck is a chuck that is fixed to the spindle of a machine tool such as an NC lathe.
- the chuck body 2 of the chuck 1 shown in FIGS. 1 and 2 includes a front body 3 and a rear body 4 that closes the rear end surface of the front body 3 with a mounting bolt (not shown).
- An inner space S is formed inside the front body 3 and the rear body 4 of the chuck body 2.
- the front body 3 is provided with a plurality (for example, three) of mounting grooves 5 exemplified as mounting positions.
- the mounting grooves 5 are arranged at equal intervals in the circumferential direction.
- Master jaws 6 are arranged on the front body 3 so as to correspond to the respective mounting grooves 5. As shown in FIG.
- a drive member 7 that meshes with each master jaw 6 is arranged on the chuck axis CL of the chuck body 2, and the master jaw 6 is moved in the radial direction along the mounting groove 5 by the movement of the drive member 7. It is designed to move.
- a plurality of (for example, three) connecting mechanisms 12 to be described later are arranged in the chuck body 2 so as to correspond to the mounting grooves 5.
- the connecting mechanism 12 connects the claw 8 inserted into the mounting groove 5 to the master jaw 6.
- the claw 8 includes a base jaw 9 inserted into the mounting groove 5, and a top jaw 11 fixed to the front surface of the base jaw 9 with a bolt 10.
- the cross-sectional shape of the base jaw 9 is similar to that of the mounting groove 5.
- the right side in FIG. 2 is referred to as the front side
- the left side is referred to as the rear side, which will be described below.
- the coupling mechanism 12 of the chuck jaws is a mechanism for coupling the jaws 8 to the master jaw 6 provided on the chuck body 2 described above.
- the connecting mechanism 12 includes a connecting member 14 provided in the master jaw 6, a spring member 13 (first elastic member) that biases the connecting member 14 forward, and an operating portion. 15 and.
- the connecting member 14 is movable between a connecting position A for connecting to the claw 8 and a spaced position B separated from the claw 8.
- the spring member 13 biases the connecting member 14 toward the connecting position A.
- the operating portion 15 is configured to move the connecting member 14 to the separated position B.
- connection mechanism 12 will be described more specifically.
- the coupling member 14 is biased toward the rack-shaped coupling surface 8a of the claw 8 inserted into the mounting groove 5 by the spring member 13 exemplified as the first elastic member.
- the connecting member 14 is configured to move to a connecting position A (see FIG. 6) for connecting to the connecting surface 8a of the claw 8 and a spaced position B (see FIG. 3) apart from the connecting surface 8a of the claw 8. ..
- the connecting member 14 is movable in the direction along the chuck axis line CL.
- the master jaw 6 is provided with a stepped connecting hole 16 that opens toward the mounting groove 5.
- the connecting member 14 is movably inserted and mounted in the connecting hole 16. As shown in FIG. 2, the contact plate 40 is arranged in the connection hole 16, and the spring member 13 described above is interposed and sandwiched between the contact plate 40 and the connection member 14. The connecting member 14 is biased toward the mounting groove 5 by the spring member 13.
- a positioning groove 17 is formed on the outer peripheral surface of the connecting member 14 as shown in FIG.
- a pin member 18 is provided on the master jaw 6 so that the tip of the master jaw 6 projects into the connecting hole 16. The pin member 18 is engaged with the positioning groove 17 so that the connecting member 14 does not separate from the master jaw 6.
- a rack-shaped connecting portion 14a that can be connected to the connecting surface 8a of the claw 8 is formed at the tip (front end) of the connecting member 14.
- the master jaw 6 is provided with a shaft member 19 which is movable by the movement of the connecting member 14.
- the tip end of the shaft member 19 is more than the outer surface (upper surface) of the master jaw 6 as shown in FIG.
- the shaft member 19 moves so as to be located below.
- the tip of the shaft member 19 is flush with the outer surface (upper surface) of the master jaw 6. The member 19 moves.
- an engaging groove portion 20 having an inclined surface 20a is formed on the outer peripheral surface of the connecting member 14.
- the actuating portion 15 has an actuating member 25 provided in the above-described engaging groove portion 20 so as to be able to move forward and backward.
- the actuating member 25 retracts from the engaging position D (see FIG. 3) in which the engaging member 20 advances into and engages with the engaging groove 20 of the connecting member 14, and retracts from the engaging position D to release the engagement with the engaging groove 20. It is movable between the disengagement position C (see FIG. 6).
- the connecting member 14 is located at the separated position B (see FIG. 3).
- the actuating member 25 is disposed on the side of the connecting member 14, and is movable in a direction orthogonal to the moving direction of the connecting member 14 and in the horizontal direction.
- the operating portion 15 further includes a lock releasing member 22 and a spring member 23 (second elastic member) that biases the lock releasing member 22 forward.
- the lock releasing member 22 has a first releasing member position (see FIG. 3) that positions the operating member 25 at the engagement position D and a second releasing member position (see FIG. 6) that positions the operating member 25 at the engagement releasing position C. ) And can be moved between.
- the spring member 23 biases the lock release member 22 toward the second release member position.
- the lock releasing member 22 is arranged below the actuating member 25 and is movable in the direction along the moving direction of the connecting member 14.
- the front body 3 is provided with a lock release hole 21 having a stepped portion 21a.
- the lock release hole 21 extends along the chuck axis CL and opens on the front surface of the front body 3.
- a lock release member 22 is movably inserted and mounted in the lock release hole 21.
- the lock release hole 21 includes the stepped portion 21a described above, a large diameter hole 21b formed in front of the stepped portion 21a, and a small diameter hole 21c formed in the rear of the stepped portion 21a. There is.
- a spring member 23 exemplified as a second elastic member is interposed between the large diameter hole 21b of the lock releasing hole 21 and the large diameter portion 22a of the lock releasing member 22. By the spring member 23, the lock release member 22 is biased forward (toward the second release member position).
- An operating hole 24 is connected to the lock release hole 21.
- the operation hole 24 extends in a direction perpendicular to the lock release hole 21.
- One of the operation holes 24 is opened to the above-mentioned connecting hole 16, and the other is opened to the outer peripheral surface of the front body 3.
- An actuating member 25 is movably inserted and mounted in the actuating hole 24.
- the lock release member 22 moves the actuating member 25 via the first transmission mechanism 41.
- the first transmission mechanism 41 includes a first inclined groove portion 27 provided on one of the actuating member 25 and the unlocking member 22, and a first inclined convex portion 26 provided on the other.
- the inclined surface of the first inclined convex portion 26 extends along the first inclined groove portion 27, and the first inclined convex portion 26 is engaged with the first inclined groove portion 27.
- the first inclined convex portion 26 is provided in the small diameter portion 22b formed behind the large diameter portion 22a of the lock releasing member 22.
- the small diameter portion 22b has a flat upper portion and is formed so as to project upward from the flat surface.
- the first inclined groove portion 27 is provided below the operating member 25. In this way, the movement of the lock releasing member 22 causes the operating member 25 to move.
- an angle ⁇ that is an acute angle among the angles formed by the direction in which the first inclined groove portion 27 and the first inclined convex portion 26 extend and the moving direction of the lock release member 22 (the direction along the chuck axis CL). May be less than 45 °.
- a first seal member 28 is mounted between the large diameter portion 22a of the lock release member 22 and the large diameter hole 21b of the lock release hole 21. This seals between the large diameter portion 22a of the lock release member 22 and the large diameter hole 21b of the lock release hole 21.
- a positioning groove 38 is formed on the outer surface of the operating member 25 as shown in FIG.
- the front body 3 is provided with a pin member 39 so that its tip projects into the operation hole 24.
- the pin member 39 is engaged with the positioning groove 38 so that the operating member 25 does not separate from the operating hole 24.
- the pin member 39 comes into contact with the surface 38a of the positioning groove 38 on the coupling member 14 side.
- the actuating portion 15 further includes a lock member 33, a lock holding member 30, and a spring member 31 (third elastic member) that biases the lock holding member 30.
- the lock member 33 is movable between a lock position that locks the movement of the actuating member 25 located at the engagement position D and a lock release position that unlocks the actuating member 25.
- the lock member 33 is a direction orthogonal to the moving direction of the actuating member 25 and is vertically movable.
- the lock holding member 30 is located between a first holding member position (see FIG. 3) that positions the lock member 33 in the lock position and a second holding member position (see FIG. 6) that positions the lock member 33 in the unlock position. It is possible to move with.
- the spring member 31 biases the lock holding member 30 toward the second holding member position.
- the lock holding member 30 is movable in a direction along the moving direction of the lock releasing member 22, and is movable in a direction orthogonal to the moving direction of the lock member 33.
- the front body 3 is provided with a lock holding hole 29 having a stepped portion 29a.
- the lock holding hole 29 extends along the chuck axis CL and opens on the front surface of the front body 3.
- the lock holding hole 29 is provided in parallel with the lock release hole 21, and the lock holding member 30 is movably inserted and mounted in the lock holding hole 29.
- the lock holding hole 29 includes the stepped portion 29a described above, a large diameter hole 29b formed in front of the stepped portion 29a, and a small diameter hole 29c formed in the rear of the stepped portion 29a. There is.
- a spring member 31 exemplified as a third elastic member is interposed between the stepped portion 29a of the lock holding hole 29 and the large diameter portion 30a of the lock holding member 30.
- the spring member 31 biases the lock holding member 30 forward (toward the second holding member position).
- the communication hole 32 extends in the vertical direction.
- a lock member 33 is movably inserted and attached to the communication hole 32.
- the lock holding member 30 moves the lock member 33 via the second transmission mechanism 42.
- the second transmission mechanism 42 includes a second inclined groove portion 34 provided in one of the lock member 33 and the lock holding member 30, and a second inclined convex portion 37 provided in the other. , Is included.
- the inclined surface of the second inclined convex portion 37 extends along the second inclined groove portion 34, and the second inclined convex portion 37 is engaged with the second inclined groove portion 34.
- the second inclined convex portion 37 is provided on the small diameter portion 30b formed behind the large diameter portion 30a of the lock holding member 30.
- the small-diameter portion 30b is formed such that the portion on the lock member 33 side is flat and projects from the flat surface to the lock member 33 side.
- the second inclined groove portion 34 is provided in a portion of the lock member 33 on the lock holding member 30 side. In this way, the second inclined convex portion 37 of the lock holding member 30 is engaged with the second inclined groove portion 34, and the lock member 33 is moved by the movement of the lock holding member 30.
- a lock portion 35 which is notched in a flat shape and engageable with the tip end of the lock member 33 is formed.
- the tip of the lock member 33 abuts and engages with the lock portion 35.
- a second seal member 36 is mounted on the front portion of the lock holding hole 29 between the large diameter portion 30a of the lock holding member 30 and the large diameter hole 29b of the lock holding hole 29. This seals between the large diameter portion 30a of the lock holding member 30 and the large diameter hole 29b of the lock holding hole 29.
- the chuck 1 provided with the above-described coupling mechanism 12 is fixed to a spindle 50 of a machine tool such as an NC lathe and clamps a work W conveyed by a loader 51 exemplified as a conveying device.
- the clamped work W is processed by moving a tool rest (not shown) provided with a plurality of cutting tools in the front, rear, left and right directions.
- the claws 8 of the chuck 1 corresponding to the diameter of the work W are replaced.
- the pressing member 52 installed on the loader 51 is pressed against the front end surface of the lock releasing member 22 from the front of the chuck body 2. Then, while being inserted into the lock release hole 21, the lock release member 22 is moved to the rear of the chuck body 2 against the spring force to be positioned at the first release member position shown in FIG.
- the pressing member 52 is attached to the loader 51 in this embodiment, it may be attached to a turret or a mill shaft used for machining the work W.
- the tip of the shaft member 19 is located below the outer surface of the master jaw 6. Further, the lock member 33 moves toward the lock portion 35 of the actuating member 25 and is positioned at the lock position, and the tip of the lock member 33 abuts and engages with the lock portion 35 (see FIG. 5). Since the lock holding member 30 is biased toward the front of the chuck body 2 by the spring member 31, the movement of the lock member 33 is locked by the lock holding member 30 and the spring member 31, and the actuating member is locked by the lock member 33. 25 movements are locked. In this way, when the movement of the actuating member 25 is locked, the movements of the unlocking member 22 and the connecting member 14 are also locked.
- the pressing member 52 is pulled out from the lock release hole 21 and separated from the chuck body 2. Move it to the desired position.
- the pawl 8 is taken out from the mounting groove 5 of the chuck body 2 manually or by an automatic pawl exchanging device, and then the pawl 8 matching the diameter of the workpiece W to be machined is inserted into the mounting groove 5.
- the pressing member 52 (see FIG. 9) is pressed against the front end surface of the lock holding member 30 from the front of the chuck body 2 as shown in FIG. Then, while being inserted into the lock holding hole 29, the lock holding member 30 is moved toward the rear of the chuck body 2 against the spring force to be positioned at the first holding member position shown in FIG.
- the lock holding member 30 moves to the first holding member position
- the force received by the lock holding member 30 from the pressing member 52 is transmitted to the lock member 33 via the second transmission mechanism 42, and the lock member 33 operates. It moves in the direction away from the member 25.
- the lock member 33 is positioned at the lock release position, and the movement lock of the operating member 25 is released.
- the lock release member 22 is urged forward of the chuck body 2 by the spring member 23 and moves to the second release member position (see FIG. 3).
- the force received by the unlocking member 22 from the spring member 23 is transmitted to the operating member 25 via the first transmission mechanism 41.
- the operating member 25 moves to the engagement release position C separated from the connecting member 14, and the engagement between the connecting member 14 and the operating member 25 is released. Then, the tip of the lock member 33 located at the unlocked position abuts a portion of the actuating member 25 other than the lock portion 35 (a portion closer to the connecting member 14 than the lock portion 35) (see FIGS. 6 to 8) ).
- the connecting member 14 Since the connecting member 14 is biased toward the mounting groove 5 by the spring member 13, it moves to the connecting position A where it is connected to the connecting surface 8a of the claw 8. Therefore, the claw 8 is connected to the master jaw 6 via the connecting member 14.
- the position of the tip of the shaft member 19 is confirmed visually or by a sensor, and it is determined whether or not the claw 8 and the master jaw 6 are connected via the connecting member 14.
- the pressing member 52 is pulled out from the lock holding hole 29 and moved to a position away from the chuck body 2.
- the other claws 8 of the mounting groove 5 are also replaced in the same manner as above. After all the claws 8 have been exchanged, the work W is clamped on the chuck 1 and processed.
- the connecting member 14 is provided so as to be movable between the connecting position A where it is connected to the connecting surface 8a of the claw 8 and the spaced position B which is separated from the connecting surface 8a of the claw 8.
- the connecting member 14 can be moved to any position by the operating portion 15 that is operated from the front. This makes it unnecessary to provide a large space on the outer peripheral side of the chuck 1.
- the work of connecting the claw 8 arranged in the mounting groove 5 of the chuck body 2 to the master jaw 6 can be quickly performed. Further, since the operating portion 15 can be operated from the front of the chuck body 2, it is not necessary to provide a large space for such work on the outer peripheral side of the chuck. Further, since the loader 51 is used to operate the operating unit 15, the handle can be made unnecessary, and the space for storing the handle can be made unnecessary.
- a connecting member 14 is urged by the spring member 13 toward the connecting surface 8a of the claw 8 arranged in the mounting groove 5, and the connecting member 14 is connected to the connecting surface 8a of the claw 8.
- a connecting mechanism 12 having a connecting position A for moving and a moving part 15 for moving the claw 8 to a separated position B away from the connecting surface 8a is arranged, and a connecting member 14 is provided on the master jaw 6.
- the operating portion 15 includes a lock releasing member 22 that is urged toward the front of the chuck body 2 by a spring member 23, and an operating member 25 that is activated by the movement of the lock releasing member 22.
- a lock member 33 that engages with the rear end portion of the actuating member 25 is arranged, and the lock member 33 engages with the lock holding member 30 that is biased toward the front of the chuck body 2 by the spring member 31.
- the lock member 33 can be engaged with the rear end of the operating member 25.
- the pressing member 52 can be separated from the chuck body 2. Therefore, the space in front of the chuck body 2 can be effectively used, and the replacement work of the claw 8 can be easily performed.
- the actuating member 25 can be moved via the inclined convex portion 26 including the inclined surface provided on the lock releasing member 22.
- the connecting member 14 provided in the master jaw 6 is biased toward the connecting position A where it is connected to the claw 8 by the spring member 13, and the connecting member 14 is operated by the operating portion 15.
- the connecting member 14 can be moved to the separated position B away from the claw 8.
- the operating member 15 allows the connecting member 14 to be easily moved to the connecting position A and the separating position B. Therefore, the claw 8 arranged in the mounting groove 5 of the chuck body 2 can be quickly connected to the master jaw 6.
- the actuating portion 15 is movable between the engagement position D that engages with the engagement groove portion 20 of the coupling member 14 and the engagement release position C that releases the engagement.
- the connecting member 14 can be located at the separated position B.
- the connecting member 14 can be positioned at the separated position B.
- the coupling member 14 can be positioned at the coupling position A. Therefore, the connecting member 14 can be easily moved to the connecting position A and the separating position B, and the claw 8 can be quickly connected to the master jaw 6.
- the actuating portion 15 has the first releasing member position where the operating member 25 is located at the engagement position D and the second releasing member position where the operating member 25 is located at the engagement releasing position.
- the lock release member 22 is movable between the lock release member 22 and the lock release member 22 is biased by the spring member 23 toward the second release member position.
- the lock release member 22 moves the actuation member 25 via the first transmission mechanism 41, and the first transmission mechanism 41 is provided on one of the actuation member 25 and the lock release member 22. It also has a first inclined groove portion 27 and a first inclined convex portion 26 provided on the other side. As a result, the actuating member 25 can be easily moved by the force received by the unlocking member 22.
- the lock releasing hole 21 into which the lock releasing member 22 is movably inserted is opened in the chuck body 2 on the front surface of the chuck body 2.
- the lock releasing member 22 can be operated from the front of the chuck body 2. Therefore, it is not necessary to provide a space for operating the operating portion 15 on the outer peripheral side of the chuck 1.
- the first seal member 28 is mounted between the lock release member 22 and the lock release hole 21 at the front part of the lock release hole 21. This can prevent chips and cutting fluid from entering the gap between the lock release member 22 and the lock release hole 21. Therefore, it is possible to prevent the movement of the unlocking member 22 from being hindered.
- the actuating portion 15 is movable between the lock position that locks the actuating member 25 located at the engagement position D and the lock release position that unlocks the actuating member 25. It further has a lock member 33. As a result, the movement of the operating member 25 located at the engagement position D can be locked, and the operating member 25 can be maintained at the engagement position D by positioning the locking member 33 at the locking position. The connecting member 14 can be maintained at the separated position B.
- the actuating portion 15 is provided between the first holding member position where the lock member 33 is located at the lock position and the second holding member position where the lock member 33 is located at the lock release position. It has a movable lock holding member 30, and the lock holding member 30 is biased by a spring member 31 toward the second holding member position. Accordingly, by positioning the lock holding member 30 at the first holding member position, the lock member 33 can be positioned at the lock position, and the movement of the actuating member 25 can be locked. On the other hand, by positioning the lock holding member 30 at the second holding member position, the lock member 33 can be positioned at the lock release position, and the actuating member 25 can be moved.
- the lock holding member 30 moves the lock member 33 via the second transmission mechanism 42, and the second transmission mechanism 42 is provided on one of the lock member 33 and the lock holding member 30.
- the second inclined groove portion 34 and the second inclined convex portion 37 provided on the other side. This allows the lock member 33 to be easily moved by the force received by the lock holding member 30.
- the lock holding hole 29 into which the lock holding member 30 is movably inserted is opened in the chuck body 2 on the front surface of the chuck body 2.
- the lock holding member 30 can be operated from the front of the chuck body 2. Therefore, it is not necessary to provide a space for operating the operating portion 15 on the outer peripheral side of the chuck 1.
- the second seal member 36 is mounted between the lock holding member 30 and the lock holding hole 29 in the front part of the lock holding hole 29. This can prevent chips and cutting fluid from entering the gap between the lock holding member 30 and the lock holding hole 29. Therefore, it is possible to prevent the movement of the lock holding member 30 from being hindered.
Abstract
Description
チャック本体に設けられたマスタージョーに爪を連結させるチャックの爪の連結機構であって、
前記マスタージョー内に設けられた連結部材であって、前記爪に連結させる連結位置と、前記爪から離れた離間位置との間で移動可能な連結部材と、
前記連結部材を前記連結位置に向けて付勢する第1弾性部材と、
前記連結部材を前記離間位置に移動させる作動部と、を備えた、チャックの爪の連結機構、
を提供する。
前記連結部材は、係合溝部を有し、
前記作動部は、前記係合溝部に進退可能に設けられた作動部材であって、前記連結部材の前記係合溝部に進出して係合する係合位置と、前記係合位置から後退して前記係合溝部との係合を解除する係合解除位置との間で移動可能な作動部材を有し、
前記作動部材が係合位置に位置している場合、前記連結部材は前記離間位置に位置する、ようにしてもよい。
前記作動部は、前記作動部材を前記係合位置に位置させる第1解除部材位置と、前記作動部材を前記係合解除位置に位置させる第2解除部材位置との間で移動可能なロック解除部材と、前記ロック解除部材を前記第2解除部材位置に向けて付勢する第2弾性部材と、を有している、
ようにしてもよい。
前記ロック解除部材は、第1伝達機構を介して前記作動部材を移動させ、
前記第1伝達機構は、前記作動部材および前記ロック解除部材の一方に設けられた第1傾斜溝部と、他方に設けられた第1傾斜凸部であって、前記第1傾斜溝部に沿って延びるとともに前記第1傾斜溝部に係合する第1傾斜凸部と、を有している、
ようにしてもよい。
前記第1傾斜溝部および前記第1傾斜凸部が延びる方向と、前記ロック解除部材の移動方向とがなす角度のうち鋭角となる角度は、45°未満である、
ようにしてもよい。
前記チャック本体に、前記ロック解除部材が移動可能に挿入されたロック解除孔が設けられ、
前記ロック解除孔は、前記チャック本体の前面に開口している、
ようにしてもよい。
前記ロック解除孔の前部において、前記ロック解除部材と前記ロック解除孔との間に第1シール部材が装着されている、
ようにしてもよい。
前記作動部は、前記係合位置に位置する前記作動部材をロックするロック位置と、前記作動部材のロックを解除するロック解除位置との間で移動可能なロック部材を更に有している、
ようにしてもよい。
前記作動部は、前記ロック部材を前記ロック位置に位置させる第1保持部材位置と、前記ロック部材を前記ロック解除位置に位置させる第2保持部材位置との間で移動可能なロック保持部材と、前記ロック保持部材を前記第2保持部材位置に向けて付勢する第3弾性部材と、を更に有している、
ようにしてもよい。
前記ロック保持部材は、第2伝達機構を介して前記ロック部材を移動させ、
前記第2伝達機構は、前記ロック部材および前記ロック保持部材の一方に設けられた第2傾斜溝部と、他方に設けられた第2傾斜凸部であって、前記第2傾斜溝部に沿って延びるとともに前記第2傾斜溝部に係合する第2傾斜凸部と、を有している、
ようにしてもよい。
前記チャック本体に、前記ロック保持部材が移動可能に挿入されたロック保持孔が設けられ、
前記ロック保持孔は、前記チャック本体の前面に開口している、
ようにしてもよい。
前記ロック保持孔の前部において、前記ロック保持部材と前記ロック保持孔との間に第2シール部材が装着されている、
ようにしてもよい。
Claims (12)
- チャック本体に設けられたマスタージョーに爪を連結させるチャックの爪の連結機構であって、
前記マスタージョー内に設けられた連結部材であって、前記爪に連結させる連結位置と、前記爪から離れた離間位置との間で移動可能な連結部材と、
前記連結部材を前記連結位置に向けて付勢する第1弾性部材と、
前記連結部材を前記離間位置に移動させる作動部と、を備えた、チャックの爪の連結機構。 - 前記連結部材は、係合溝部を有し、
前記作動部は、前記係合溝部に進退可能に設けられた作動部材であって、前記連結部材の前記係合溝部に進出して係合する係合位置と、前記係合位置から後退して前記係合溝部との係合を解除する係合解除位置との間で移動可能な作動部材を有し、
前記作動部材が係合位置に位置している場合、前記連結部材は前記離間位置に位置する、請求項1に記載のチャックの爪の連結機構。 - 前記作動部は、前記作動部材を前記係合位置に位置させる第1解除部材位置と、前記作動部材を前記係合解除位置に位置させる第2解除部材位置との間で移動可能なロック解除部材と、前記ロック解除部材を前記第2解除部材位置に向けて付勢する第2弾性部材と、を有している、請求項2に記載のチャックの爪の連結機構。
- 前記ロック解除部材は、第1伝達機構を介して前記作動部材を移動させ、
前記第1伝達機構は、前記作動部材および前記ロック解除部材の一方に設けられた第1傾斜溝部と、他方に設けられた第1傾斜凸部であって、前記第1傾斜溝部に沿って延びるとともに前記第1傾斜溝部に係合する第1傾斜凸部と、を有している、請求項3に記載のチャックの爪の連結機構。 - 前記第1傾斜溝部および前記第1傾斜凸部が延びる方向と、前記ロック解除部材の移動方向とがなす角度のうち鋭角となる角度は、45°未満である、請求項4に記載のチャックの爪の連結機構。
- 前記チャック本体に、前記ロック解除部材が移動可能に挿入されたロック解除孔が設けられ、
前記ロック解除孔は、前記チャック本体の前面に開口している、請求項3~5のいずれか一項に記載のチャックの爪の連結機構。 - 前記ロック解除孔の前部において、前記ロック解除部材と前記ロック解除孔との間に第1シール部材が装着されている、請求項6に記載のチャックの爪の連結機構。
- 前記作動部は、前記係合位置に位置する前記作動部材をロックするロック位置と、前記作動部材のロックを解除するロック解除位置との間で移動可能なロック部材を更に有している、請求項2~7のいずれか一項に記載のチャックの爪の連結機構。
- 前記作動部は、前記ロック部材を前記ロック位置に位置させる第1保持部材位置と、前記ロック部材を前記ロック解除位置に位置させる第2保持部材位置との間で移動可能なロック保持部材と、前記ロック保持部材を前記第2保持部材位置に向けて付勢する第3弾性部材と、を更に有している、請求項8に記載のチャックの爪の連結機構。
- 前記ロック保持部材は、第2伝達機構を介して前記ロック部材を移動させ、
前記第2伝達機構は、前記ロック部材および前記ロック保持部材の一方に設けられた第2傾斜溝部と、他方に設けられた第2傾斜凸部であって、前記第2傾斜溝部に沿って延びるとともに前記第2傾斜溝部に係合する第2傾斜凸部と、を有している、請求項9に記載のチャックの爪の連結機構。 - 前記チャック本体に、前記ロック保持部材が移動可能に挿入されたロック保持孔が設けられ、
前記ロック保持孔は、前記チャック本体の前面に開口している、請求項9または10に記載のチャックの爪の連結機構。 - 前記ロック保持孔の前部において、前記ロック保持部材と前記ロック保持孔との間に第2シール部材が装着されている、請求項11に記載のチャックの爪の連結機構。
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JP2020553916A JP7068670B2 (ja) | 2018-10-31 | 2019-10-29 | チャックの爪の連結機構 |
CN201980071900.6A CN112996620A (zh) | 2018-10-31 | 2019-10-29 | 卡盘的爪的连结机构 |
EP19878331.8A EP3875192A4 (en) | 2018-10-31 | 2019-10-29 | CHUCK CLAW COUPLING MECHANISM |
KR1020217011564A KR102529469B1 (ko) | 2018-10-31 | 2019-10-29 | 척의 발톱의 연결 기구 |
US17/290,668 US11478861B2 (en) | 2018-10-31 | 2019-10-29 | Chuck-claw coupling mechanism |
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EP (1) | EP3875192A4 (ja) |
JP (1) | JP7068670B2 (ja) |
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CN (1) | CN112996620A (ja) |
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CN112971461A (zh) * | 2021-02-20 | 2021-06-18 | 江西金虎保险设备集团有限公司 | 一种博物馆展示用旋转观赏文物柜 |
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US11794301B2 (en) * | 2018-08-10 | 2023-10-24 | Howa Machinery, Ltd. | Chuck grip accuracy checking method, chuck claw exchanging method, and chuck grip accuracy checking device |
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- 2019-10-29 KR KR1020217011564A patent/KR102529469B1/ko active IP Right Grant
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KR102529469B1 (ko) | 2023-05-04 |
JP7068670B2 (ja) | 2022-05-17 |
TW202023774A (zh) | 2020-07-01 |
US11478861B2 (en) | 2022-10-25 |
JPWO2020090779A1 (ja) | 2021-09-02 |
EP3875192A4 (en) | 2022-08-03 |
TWI715273B (zh) | 2021-01-01 |
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US20210379676A1 (en) | 2021-12-09 |
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