JP5385123B2 - Rotating machine - Google Patents

Description

  The present invention relates to a rotary processing apparatus that is positioned by a positioning jig fixed to an object, drives a rotary tool toward the object under a state of being positioned by the positioning jig, and processes the object.

  2. Description of the Related Art Conventionally, a hand-held rotary processing apparatus is used to process a hole for passing a bolt or the like through a predetermined portion of an object such as a steel plate. In order to improve the processing accuracy (product accuracy) of the object, the rotation processing device has a certain amount of weight, so that it is possible to accurately place the rotation processing device at a predetermined position of the object while reducing the burden on the operator. Is also an important factor. Therefore, a technique is known in which a positioning jig for positioning the rotating processing apparatus with respect to the object is fixed in advance to the object, and the rotating processing apparatus is accurately arranged on the object by the positioning jig. As a result, a rotary tool (such as a drill) of the rotary processing apparatus can be accurately faced to a predetermined position of the target object, and the product accuracy can be improved by eliminating the misalignment of the drilling processing position and the drilling processing angle. it can.

  As such a rotary processing apparatus, for example, a technique described in Patent Document 1 is known. In the punching device (rotary processing device) described in Patent Literature 1, a plurality of guide blocks having locking pins are fixed to a guide member (positioning jig) fixed to an object. The drilling device includes a drill adapter having a pair of guide plates. By fitting a guide block between the guide plates, the drilling device is guided by the guide member, and as a result, the drilling device is accurately arranged at a predetermined position of the object. be able to. Then, when the drill adapter is further inserted into the guide block, the locking pin is locked to the slide portion of the drill adapter and locked, thereby preventing the drill adapter from coming off from the guide block, and the object of the drilling device. Positioning with respect to is completed.

  After processing the drilling by rotating the rotary tool of the drilling device, the operator operates the lever of the drill adapter. Then, the slide part is pulled in conjunction with the operation of the lever, the locking of the locking pin is released, and the lock is released. As a result, the punching device can be separated from the object, and the punching device can be detached from the guide member.

JP 2004-114233 A

  However, according to the rotary machining apparatus described in Patent Document 1 described above, when removing the rotary machining apparatus from the guide member, the operator needs to operate the lever to release the lock. That is, in addition to the “operation for causing the rotary processing device to face the object” and the “operation for pulling the rotary processing device away from the target object”, the operator “the operation for releasing the locked state between the rotary processing device and the guide member” It was necessary to go through these three work steps.

  As described above, since the “unlocking operation” is required after finishing the processing, a burden is imposed on the operator and the work process becomes complicated. Therefore, it has been desired to develop a rotary processing apparatus that can further reduce the burden on the operator.

  An object of the present invention is to provide a rotary machining apparatus that can simplify a work process when machining an object and reduce a burden on an operator.

  The rotary processing apparatus of the present invention is positioned by a positioning jig fixed to an object, and a rotary tool is propelled toward the object under the state of being positioned by the positioning jig. A rotary machining device for machining, wherein the rotary tool is accommodated in a rotary tool accommodating member that accommodates the rotary tool in a freely rotatable and reciprocating manner, and a positioning hole provided in the positioning jig provided on the distal end side of the rotary tool accommodating member. A fitting portion to be fitted; a feed member that is accommodated in the rotary tool housing member in a non-rotating state and is movable together with the rotary tool; and one end side is fixed to the feed member, and the other end side is the rotary tool. An arm member extending outward in the radial direction and provided outside the rotary tool storage member, and swingably provided at the distal end side of the rotary tool storage member, and hooked on a hook portion provided in the positioning jig. A cam member having a hooking claw, and a cam member that is provided between the other end side of the arm member and the cam member to swing the cam member as the feed member moves forward and backward, and is close to the cam member It is characterized by comprising a rod in which a long hole allowing relative movement of the arm member between a position and a separation position is formed, and an elastic member for urging the arm member toward the separation position.

  In the rotary machining apparatus of the present invention, the connecting point of the cam member with the rod is a force point, the connecting point of the cam member with the rotating tool housing member is a fulcrum, and the contact point of the hooking claw with the hooking portion. The cam member is formed so that a distance between the force point and the fulcrum is longer than a distance between the fulcrum and the action point when the point is an action point.

  According to the rotary processing apparatus of the present invention, the fitting portion that fits into the positioning hole of the positioning jig is provided on the distal end side of the rotary tool housing member. The relative movement between the rotary processing apparatus and the object along the radial direction can be restricted. A cam member is swingably provided on the distal end side of the rotary tool housing member, and the cam member is swung through the arm member and the rod by the propulsion of the rotary tool and the feed member, and the hooking claw of the cam member is moved to the positioning jig. It can be hooked on the hook. Thereby, the relative movement of the rotary processing apparatus and the object along the axial direction of the rotary tool can be restricted (locked state). By retreating the rotary tool and the feed member, the cam member can be swung via the arm member and the rod, and the hooked state (locked state) of the hooking claw with respect to the hooking portion can be released. Thereby, the relative movement of the rotary processing apparatus and the target object along the axial direction of the rotary tool is allowed (unlocked state), and the rotary processing apparatus can be pulled away from the target object. Therefore, “locking operation” and “unlocking operation” can be performed as the rotary tool advances and retreats, thereby simplifying the work process when processing the object and reducing the burden on the operator. Can do. After unlocking the rotary processing apparatus, the arm member can be returned to the separated position with respect to the cam member by the elongated hole provided in the rod and the elastic member that biases the arm member, and the cam member can be returned to the unlocked state. it can.

  According to the rotary machining apparatus of the present invention, the connecting point of the cam member with the rod is a force point, the connecting point of the cam member with the rotating tool housing member is a fulcrum, and the contact point of the hooking claw with the hooking portion is the action point. Since the cam member is formed so that the distance between the force point and the fulcrum is longer than the distance between the fulcrum and the action point, the rotary tool housing member is processed by the rotary tool according to the principle of the lever acting on the cam member. Even if the reaction force acts, the locked state of the rotary machining apparatus can be maintained. In addition, since the locked state can be maintained, the elastic member can be reduced in size by reducing the elastic force of the elastic member.

It is a perspective view which shows the rotary processing apparatus which concerns on this invention. It is a fragmentary sectional view which follows the AA line of FIG. 1 explaining the structure and operation | movement (1st step) of a locking mechanism. It is a fragmentary sectional view which follows the AA line of FIG. 1 explaining the structure and operation | movement (2nd step) of a locking mechanism. It is a fragmentary sectional view which follows the AA line of FIG. 1 explaining the structure and operation | movement (3rd step) of a locking mechanism. It is a fragmentary sectional view which follows the AA line of FIG. 1 explaining the force which acts on a cam member. It is a fragmentary sectional view which follows the AA line of FIG. 1 explaining the structure and operation | movement (4th step) of a locking mechanism.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  1 is a perspective view showing a rotary machining apparatus according to the present invention, FIG. 2 is a partial sectional view taken along line AA in FIG. 1 for explaining the structure and operation (first stage) of the lock mechanism, and FIG. FIG. 4 is a partial sectional view taken along line AA in FIG. 1 for explaining the structure and operation (second stage) of the locking mechanism, and FIG. 4 is a sectional view taken on line A- in FIG. 1 for explaining the structure and operation (third stage) of the locking mechanism. FIG. 5 is a partial cross-sectional view taken along line A, FIG. 5 is a partial cross-sectional view taken along line AA in FIG. 1 for explaining the force acting on the cam member, and FIG. 6 shows the structure and operation (fourth stage) of the lock mechanism. The partial sectional views along the AA line of FIG.

  As shown in FIG. 1, the arc-shaped steel plate (object) 10 is a steel plate having a thickness of about 4 mm, and the arc-shaped steel plate 10 has a substantially L-shaped cross section at a position to be drilled at a thickness of about 3 mm. The L-shaped steel plate (object) 11 is fixed by welding or the like. A positioning jig 12 for positioning the rotary processing device 20 with respect to the arcuate steel plate 10 is fixed to the side of the arcuate steel plate 10 opposite to the L-shaped steel plate 11 side. The positioning jig 12 is temporarily fixed to the arcuate steel plate 10 by bolts or the like (not shown), and is removed after the arcuate steel plate 10 and the L-shaped steel plate 11 are processed by the rotary machining device 20. ing.

  As shown in FIGS. 2 to 6, the positioning jig 12 is integrally provided on the main body portion 12a fixed to the arcuate steel plate 10 and the rotary processing apparatus 20 side of the main body portion 12a, and the width dimension of the main body portion 12a. And a hooking portion 12b set to a larger width dimension. When the rotary processing device 20 is fixed to the positioning jig 12, the hooking claw 35 of the cam member 33 of the rotary processing device 20 is hooked on the hook portion 12 b.

  A plurality of positioning holes 12c having a circular cross section are formed at predetermined intervals in the positioning jig 12 along the longitudinal direction thereof. A sleeve 12d that guides the fitting of the fitting portion 24 of the rotary machining apparatus 20 is mounted in the positioning hole 12c. The sleeve 12d is formed of a resin material such as hard rubber so that the fitting portion 24 can be smoothly fitted into the positioning hole 12c.

  The rotary machining device 20 is a hand-held rotary machining device as shown in FIG. 1, and is an electric motor unit that rotationally drives a grip part 21 held by an operator and a drill 25 (see FIG. 2) as a rotary tool. 22 and a rotary tool accommodating member 23 that accommodates a drill 25 and a feed member 26 (see FIG. 2) therein. Here, the electric motor unit 22 rotationally drives the drill 25 by the rotational drive of the motor 22 a provided therein, and further directs the drill 25 and the feed member 26 toward the outside of the rotary tool housing member 23, that is, the arcuate steel plate 10. To move forward and backward.

  As shown in FIGS. 2 to 6, the rotary tool housing member 23 is formed of a hollow pipe material made of steel, and the base end side (upper side in the figure) is connected to the electric motor unit 22. A fitting portion 24 is integrally provided on the distal end side (lower side in the drawing) of the rotary tool housing member 23. The fitting portion 24 is adapted to be fitted into the positioning hole 12 c provided in the positioning jig 12 via the sleeve 12 d when the rotary processing apparatus 20 is fixed to the positioning jig 12. The fitting portion 24 is formed in a hollow shape, and a drill 25 can enter and exit through a predetermined gap inside thereof. The protrusion height (axial dimension) of the fitting portion 24 from the rotary tool housing member 23 is set to be substantially the same as the depth dimension (axial dimension) of the positioning hole 12 c of the positioning jig 12.

  Inside the rotary tool housing member 23, a drill 25 that is rotationally driven by a motor 22a of the electric motor section 22 is housed so as to be rotatable and reciprocated. Further, a feed member 26 is accommodated inside the rotary tool accommodating member 23 so as to be able to advance and retreat together with the drill 25 in a non-rotating state. The feed member 26 is formed in a substantially cylindrical shape so as to cover the periphery of the drill 25. The feed member 26 is driven back and forth by the motor 22a of the electric motor unit 22, and the drill 25 is driven back and forth in a rotating state.

  The rotary tool housing member 23 is provided with a lock mechanism 30 for fixing the rotary processing device 20 to the positioning jig 12. The lock mechanism 30 includes an arm member 31 extending in the radial direction of the rotary tool storage member 23, a rod 32 extending in the axial direction of the rotary tool storage member 23 outside the rotary tool storage member 23, and outside the rotary tool storage member 23. In addition, a cam member 33 that swings on the distal end side of the rotary tool housing member 23 and a coil spring 34 as an elastic member provided between the rod 32 and the arm member 31 are provided.

  One end side (right side in the figure) of the arm member 31 is fixed at a predetermined position along the axial direction of the feed member 26 so as to cover the periphery of the feed member 26. On the other hand, the other end side (left side in the figure) of the arm member 31 is extended outward in the radial direction of the rotary tool housing member 23 through a first slit 27 provided along the axial direction of the rotary tool housing member 23. The rotary tool storage member 23 is provided outside. The other end side of the arm member 31 has a substantially U-shaped cross section (not shown in detail), and a sliding pin 31 a is fixed to the other end side of the arm member 31. The sliding pin 31 a slides in the elongated hole 32 a provided in the rod 32 as the feed member 26 is propelled.

  The rod 32 is provided between the other end side of the arm member 31 and the cam member 33. An elongated hole 32 a is formed on one end side (upper side in the drawing) of the rod 32 so as to extend along the axial direction of the rod 32. A sliding pin 31 a provided on the other end side of the arm member 31 is slidably provided in the elongated hole 32 a, whereby one end side of the rod 32 is connected to the other end side of the arm member 31. The elongated hole 32 a allows the relative movement of the arm member 31 with respect to the rod 32 between a proximity position close to the cam member 33 and a separation position spaced apart from the cam member 33.

  A spring seat 32b having a diameter larger than the diameter of the rod 32 is integrally provided at a substantially central portion along the axial direction of the rod 32. The spring seat 32b is connected to the other end side (lower side in the figure) of the coil spring 34. I support it. One end side of the coil spring 34 is supported on the other end side of the arm member 31, and the coil spring 34 is attached by pressing the arm member 31 toward a separated position (position shown in FIGS. 2 and 3) separated from the cam member 33. It has come to force. The coil spring 34 is provided with a predetermined set load between the spring seat 32 b of the rod 32 and the other end side of the arm member 31, whereby the lock mechanism 30 including the coil spring 34 is driven when the rotary processing apparatus 20 is driven. Prevents rattling.

  The cam member 33 is formed in a substantially rectangular parallelepiped shape, and on the one side in the longitudinal direction (left side in the figure), the other end side (lower side in the figure) of the rod 32 is rotatable via the first fixing pin 33a. It is connected. A second fixing pin 33 b is provided on the other side in the longitudinal direction of the cam member 33 (right side in the drawing), and the cam member 33 is inserted into a second slit 28 provided on the distal end side of the rotary tool housing member 23. It is slidably connected via 33b. That is, the cam member 33 is driven to swing with respect to the rotary tool housing member 23 by the vertical movement of the rod 32 accompanying the forward and backward movement of the feed member 26.

  A hooking claw 35 is integrally provided on the other side in the longitudinal direction of the cam member 33, that is, on the second fixing pin 33b side and on the other side in the lateral direction (lower side in the figure). The hooking claws 35 are provided so as to protrude from the cam member 33 at a predetermined height, and the hooking claws 35 are hooked on the hooking portions 12b of the positioning jig 12 (see FIG. 4). A chamfered portion 35a is formed on the hook-like claw 35 on the side of the arcuate steel plate 10, and the chamfered portion 35a prevents the hooking claw 35 and the arc-shaped steel plate 10 from interfering when the cam member 33 is driven to swing. Is provided. Here, the protruding height of the hooking claws 35 is set to be approximately the same as the protruding height of the hooking portion 12b.

  Near the fitting portion 24 along the axial direction of the rotary tool housing member 23, a dust suction pipe 36 that communicates the inside and the outside of the rotary tool housing member 23 is provided. A vacuum device (not shown) is connected to one end side (external side) of the dust suction pipe 36, and the dust suction pipe 36 rotates the drill 25 to process the arcuate steel plate 10 (L-shaped steel plate 11). The shavings (not shown) generated in the are sucked. Thereby, it is possible to prevent the shavings from being scattered around the arcuate steel plate 10 and to improve the beautification of the working environment.

  Next, operation | movement of the rotary processing apparatus 20 formed as mentioned above is demonstrated in detail using drawing.

[First stage]
First, as indicated by a solid line arrow (1) in FIG. 2, an operator grips the grip portion 21 (see FIG. 1) of the rotary processing device 20, and the fitting portion 24 of the rotary processing device 20 is placed on the positioning jig 12. It faces the positioning hole 12c. At this time, the rotational drive of the motor 22a of the electric motor unit 22 is stopped.

[Second stage]
Next, the rotary processing device 20 is moved close to the arcuate steel plate 10, and the fitting portion 24 is fitted into the positioning hole 12c via the sleeve 12d. At this time, the rotary processing device 20 is pushed toward the arcuate steel plate 10 with a predetermined pressing force so that the fitting portion 24 completely enters the positioning hole 12c. Thereafter, the operator turns on a switch (not shown) of the rotary processing device 20 to rotate the motor 22a. Then, the drill 25 is rotationally driven in the direction shown by the solid line arrow (2) in FIG. 3, and the feed member 26 is propelled toward the arcuate steel plate 10 along with this. Further, the vacuum device is activated, and an air flow (negative pressure) as shown by a solid line arrow (3) in FIG.

[Stage 3]
With the rotary processing device 20 held vertically with respect to the arcuate steel plate 10, the drill 25 and the feed member 26 continue to propel toward the arcuate steel plate 10 as indicated by the solid line arrow (4) in FIG. 4. Then, as the feed member 26 is propelled, the arm member 31 of the lock mechanism 30 moves in the first slit 27 and approaches the arcuate steel plate 10. At this time, the sliding pin 31a does not slide in the long hole 32a by the pressing force of the coil spring 34. Therefore, the rod 32 also approaches the arcuate steel plate 10.

  Thereafter, as the rod 32 approaches the arcuate steel plate 10, solid arrows (5) and (6) in FIG. 4 centering on the central axis C1 of the first fixing pin 33a and the central axis C2 of the second fixing pin 33b. As shown, the cam member 33 swings. Then, as the cam member 33 swings, the hooking claws 35 are hooked on the hooking portion 12b of the positioning jig 12, and the locking operation of the rotary machining apparatus 20 to the positioning jig 12 by the lock mechanism 30 is completed.

  By continuously rotating the motor 22a, the drill 25 and the feed member 26 are further propelled toward the arcuate steel plate 10 with the rotary processing device 20 positioned on the positioning jig 12. At this time, the coil spring 34 is pressed and contracted by the propulsive force of the feed member 26, and the sliding pin 31a slides in the elongated hole 32a. Thereafter, the drill 25 reaches the arcuate steel plate 10 to form perforations in the arcuate steel plate 10 and the L-shaped steel plate 11.

  At the time of processing by the rotary processing device 20, as shown in FIG. 5, the feed force F from the feed member 26 and the processing reaction force F from the arcuate steel plate 10 are loaded on the drill 25. The processing reaction force F acts in a direction in which the rotary tool housing member 23 is separated from the arcuate steel plate 10, but the rotary processing device 20 is firmly locked in the vertical and horizontal directions by the lock mechanism 30 with respect to the positioning jig 12. It is in the state. Therefore, the rotary processing device 20 is not detached from the positioning jig 12 or rattled by the processing reaction force F.

  At the contact point FP between the hooking claw 35 of the cam member 33 and the hooking portion 12b of the positioning jig 12, the cam member 33 tries to rotate in the direction of the broken line arrow in the drawing during processing by the rotary processing device 20. Load F is applied. Here, a connecting point (first fixing pin 33a) between the cam member 33 and the rod 32 is used as a force point, and a connecting point (second fixing pin 33b) between the cam member 33 and the rotary tool housing member 23 is used as a fulcrum, and a contact point. Let FP be the point of action. The pressing force of the coil spring 34 is applied to the force point, and the shape of the cam member 33 is set so that the distance L1 between the force point and the fulcrum is longer than the distance L2 between the fulcrum and the action point. . Therefore, due to the principle of the lever acting on the cam member 33, the cam member 33 is not rotated by the load F acting on the contact point FP. Further, if the length dimension of the distance L3 between the fulcrum and the action point along the axial direction of the drill 25 is made shorter or the distance L1 between the force point and the fulcrum is made longer, the cam member 33 becomes more difficult to rotate due to the load F. .

[Fourth stage]
As the processing by the rotary processing device 20 proceeds, the sliding pin 31a further slides in the elongated hole 32a as shown by the solid line arrow (7) in FIG. 6, and the solid line arrow (8) in FIG. As shown, the drill 25 penetrates the arc-shaped steel plate 10 and the L-shaped steel plate 11, and a hole H is formed in the arc-shaped steel plate 10 and the L-shaped steel plate 11. At this time, the coil spring 34 is almost completely compressed. Note that, during machining by the rotary machining device 20, the vacuum device continues to operate, and the shavings of the arc-shaped steel plate 10 and the L-shaped steel plate 11 are discarded to an external disposal place (not shown) via the dust suction pipe 36. The

[Fifth stage]
When the processing of the arc-shaped steel plate 10 and the L-shaped steel plate 11 is completed and the rotary processing apparatus 20 is removed from the positioning jig 12, the motor 22a is controlled to bring the feed member 26 and the drill 25 to the positions shown in FIG. Retreat. Then, the lock mechanism 30 is unlocked by following the reverse of the propulsion operation of the feed member 26 and the drill 25 described above, and the lock mechanism 30 returns to the initial state shown in FIG. As a result, the rotary processing apparatus 20 can be detached from the positioning jig 12 and removed.

  As described in detail above, according to the rotary machining apparatus 20 according to the present embodiment, the fitting portion 24 that fits into the positioning hole 12c of the positioning jig 12 is provided on the distal end side of the rotary tool housing member 23. Therefore, the relative movement between the rotary processing device 20 and the arcuate steel plate 10 (L-shaped steel plate 11) along the radial direction of the drill 25 can be restricted by the fitting of the positioning hole 12c and the fitting portion 24.

  A cam member 33 is swingably provided on the distal end side of the rotary tool housing member 23, and the cam member 33 is swung via the arm member 31 and the rod 32 by the propulsion of the drill 25 and the feed member 26. The hooking claw 35 can be hooked on the hooking portion 12 b of the positioning jig 12. Thereby, the relative movement of the rotary machining apparatus 20 along the axial direction of the drill 25 and the arc-shaped steel plate 10 (L-shaped steel plate 11) can be restricted (locked state).

  By retreating the drill 25 and the feed member 26, the cam member 33 can be swung via the arm member 31 and the rod 32, and the hooked state (locked state) of the hooking claws 35 with respect to the hooking portion 12b can be released. As a result, relative movement between the rotary processing device 20 and the arcuate steel plate 10 (L-shaped steel plate 11) along the axial direction of the drill 25 is allowed (unlocked state), and the rotary processing device 20 is moved to the arcuate steel plate 10 (L It can be pulled away from the shaped steel plate 11).

  Accordingly, the “locking operation” and the “unlocking operation” can be performed in accordance with the advance and retreat of the drill 25 as the rotary tool, and thus the work process at the time of machining is simplified and the burden on the operator is reduced. be able to. After unlocking the rotary processing device 20, the arm member 31 is returned to the separated position with respect to the cam member 33 by the elongated hole 32 a provided in the rod 32 and the coil spring 34 provided between the rod 32 and the arm member 31. The cam member 33 can be returned to the unlocked state.

  Further, according to the rotary machining apparatus 20 according to the present embodiment, the first fixing pin 33a (center axis C1) is a force point, the second fixing pin 33b (center axis C2) is a fulcrum, and the contact point FP is an action point. The cam member 33 is formed so that the distance L1 between the force point and the fulcrum is longer than the distance L2 between the fulcrum and the action point. Therefore, due to the principle of the lever acting on the cam member 33, even when the machining reaction force F by the drill 25 acts on the rotary tool housing member 23, the locked state of the rotary machining apparatus 20 can be maintained. Further, since the locked state can be maintained, the elastic force of the coil spring 34 can be weakened and the coil spring 34 can be downsized.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, the rotary tool according to the present invention is the drill 25 for drilling an object. However, the present invention is not limited to this, for example, the drilling machined with a drill or the like can be enlarged. Also, it can be used in a processing apparatus having other rotary tools such as a reamer used for adjusting the shape.

  Moreover, in the said embodiment, although the example which applied the composite material which consists of the arc-shaped steel plate 10 and the L-shaped steel plate 11 was demonstrated as a target object which processes, this invention is not limited to this, Other shapes A composite material or a single layer material using any of the above materials may be applied.

10 Arc-shaped steel plate (object)
11 L-shaped steel plate (object)
DESCRIPTION OF SYMBOLS 12 Positioning jig 12b Hook part 12c Positioning hole 20 Rotary processing apparatus 23 Rotary tool accommodating member 24 Fitting part 25 Drill (rotary tool)
26 Feed member 31 Arm member 32 Rod 32a Elongated hole 33 Cam member 33a First fixing pin (power point)
33b Second fixing pin (fulcrum)
34 Coil spring (elastic member)
35 Claw claw FP Contact point (action point)

Claims (2)

A rotary processing apparatus that is positioned by a positioning jig fixed to an object and that drives the rotary tool toward the object under the state of being positioned by the positioning jig and processes the object. ,
A rotary tool storage member for storing the rotary tool so as to be rotatable and movable back and forth; and
A fitting portion that is provided on the distal end side of the rotary tool housing member and fits into a positioning hole provided in the positioning jig;
A feed member which is accommodated in the rotating tool accommodating member in a non-rotating state and reciprocally with the rotating tool;
One end side is fixed to the feed member, and the other end side extends radially outward of the rotary tool and is provided outside the rotary tool housing member,
A cam member having a hooking claw that is swingably provided on the tip side of the rotary tool housing member and is hooked on a hooking portion provided in the positioning jig;
The arm member is provided between the other end side of the arm member and the cam member, and swings and drives the cam member as the feed member moves forward and backward, and the arm is moved between a proximity position and a separation position with respect to the cam member. A rod formed with a slot that allows relative movement of the member;
A rotary processing apparatus comprising: an elastic member that biases the arm member toward the separated position.   2. The rotary machining apparatus according to claim 1, wherein a connection point between the cam member and the rod is a force point, a connection point between the cam member and the rotary tool housing member is a fulcrum, and the hook portion of the hook claw is connected to the hook portion. The rotary machining apparatus, wherein the cam member is formed such that a distance between the force point and the fulcrum is longer than a distance between the fulcrum and the action point when the contact point is an action point.

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