JP2003245801A - End part machining machine and method for bar shaped member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an end part machining machine and method that can machine a bar shaped member with any length and moreover with securing necessary rigidity. <P>SOLUTION: The end part machining machine for the bar shaped member comprises a transfer table 20 that has a free rotating chuck 26 and a head stock 10 that has a fitting hole for inserting the bar shaped member A into a spindle 12. The back end of the member A is clamped by the chuck 26 of the transfer table 20. The transfer table 20 is advanced and the top of the member A is passed through a hole of the head stock 10 making a proper quantity projected from the head stock 10 and then clamped to the head stock 10. When machining is completed, the member A is released from the head stock 10 and retreated by the transfer table 20. The member A is released from the chuck 26 of the transfer table 20 when the member A is completely pulled out of the head stock 10. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end processing machine and an end processing method for a rod-shaped member.

[0002]

2. Description of the Related Art As a conventional bar-shaped member end processing machine,
There is one shown in FIG. In this end processing machine, one end (rear end) of the rod-shaped member A is held by the chuck 1a of the headstock 1 and the other end (tip) is supported by the center 2a of the tailstock 2 and the intermediate part is shaken. Supported by the stopper 3 and the tool rest 4
The tip is processed by the blade 4a.

[0003]

However, in such an end processing machine for rod-shaped members, the headstock 1 is fixed,
Since the amount of movement of the tailstock 2 is small, the length of the rod-shaped member A is substantially limited to the length between the headstock 1 and the tailstock 2, and a rod-shaped member of any length, for example, a length There is a problem that a considerably long rod-shaped member or a short rod-shaped member must be provided with another end processing machine corresponding to the length thereof. Further, when the length of the rod-shaped member A becomes long, the distance between the headstock 1 and the tailstock 2 becomes large, and the rigidity of the rod-shaped member A decreases, so that there is a problem that the processing accuracy decreases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an end machine and an end machining method for a rod-shaped member which can machine a shaft of any length and can secure necessary rigidity.

[0005]

In order to achieve the above-mentioned object, an end portion processing machine for a rod-shaped member according to claim 1 of the present invention is provided with a chuck rotatably arranged, and the rod-shaped member is provided by the chuck. A headstock having a carrier for clamping one end of the rod-shaped member in the axial direction and a hole for inserting the rod-shaped member in the spindle, and a chuck for clamping the rod-shaped member inserted in the hole And a tailstock that rotatably clamps the other end of the rod-shaped member are arranged in this order, and a tool rest that processes the other end of the rod-shaped member with a tool is provided between the tailstock and the headstock. It is characterized by being placed in.

In the end processing machine having the above-mentioned structure, the rear end of the rod-shaped member is clamped by the chuck of the carrier, and the carrier is advanced so that the tip of the rod-shaped member passes through the hole of the headstock and is appropriately moved from the headstock. The chuck of the headstock is grasped in a state of protruding a certain amount, and the rod-shaped member is rotated in that state to process the end portion of the rod-shaped member by the tool of the tool rest. The rod-shaped member can be released from the chuck, the rod-shaped member can be retracted by the carrier, and the rod-shaped member can be released from the chuck of the carrier while the rod-shaped member escapes from the headstock. That is, even a rod-shaped member having a long length is penetrated through the headstock and the processed portion of the rod-shaped member is clamped by the headstock and the tailstock, so that the rod-shaped member having a long length can be processed. Since the machined part is supported at a short distance between the headstock and the tailstock, the rigidity of the machined part is secured.

According to a second aspect of the present invention, there is provided an edge processing machine for a rod-shaped member.
A work receiver that supports a rod-shaped member is vertically movably installed between the carrier and the headstock, and the rod-shaped member is positioned in the transfer area with the work receiver positioned above the carrier. It is characterized in that it is provided with a work supporting device for lowering the work receiver along with the movement and retracting it from the transfer area of the rod-shaped member.

In the end processing machine having the above-mentioned structure, when the rod-shaped member is transferred by the carrier, the workpiece receiver guides the tip of the rod-shaped member into the hole of the headstock. At this time, since the work receiver interferes with the carrier, the work receiver is retracted from the moving area of the carrier and then the rod-shaped member is guided to the hole of the headstock. Further, the shape of the surface of the work receiver for receiving the rod-shaped member is such that the rod-shaped member can be positioned stably, and the rod-shaped member can be easily handed over to the work-receiver and the rod-shaped member can be easily taken out from the work receiver. , V-shape is preferable. A cylinder is preferable as the actuator for moving the work receiver up and down, but a motor and a link or a chain may be used.

According to a third aspect of the present invention, there is provided an end portion processing machine for a rod-shaped member according to the second aspect.
A plurality of the work receivers are arranged along the transfer area of the rod-shaped member, switches are respectively arranged corresponding to the work receivers, dogs are arranged on the carrier table, and the respective switches are arranged by the dogs. It is characterized in that the respective work receivers are moved up and down by sequentially operating.

In the end processing machine having the above construction, since a plurality of work receivers are arranged, the rod-shaped member can be stably supported, and the work receivers which interfere with the transfer base as the transfer base moves in order. Since it is retracted, it is possible to accommodate rod-shaped members having different lengths, and these rod-shaped members can be reliably guided to the holes of the headstock. The switch may be a contact type switch such as a limit switch, or may be a non-contact type switch such as a photo sensor.

According to a fourth aspect of the present invention, there is provided a bar-shaped member end processing machine according to any one of the first to third aspects, wherein the chuck of the carrier is a cylinder. A cone that advances and retracts in the axial direction, and a plurality of claws that oscillate in the radial direction around the cone, and the base end portions of these claws are brought into contact with the peripheral surface of the cone by the urging force of a spring, The tip of the claw is swung inward in the radial direction by protruding the cone, and the claw holds the rod-shaped member.

In the end processing machine having the above-mentioned structure, the chuck is composed of the cone operated by the cylinder and the plurality of claws operated by the cone, so that the structure is simple and the core of the rod-shaped member is used. It can be taken out reliably.

According to a fifth aspect of the present invention, there is provided an end processing machine for a rod-shaped member, wherein in the end processing machine according to any one of the first to fourth aspects, the hole of the headstock is the carrier table. It is characterized in that it is large enough to accommodate the chuck.

In the end processing machine having the above-mentioned structure, when the rod-shaped member is short, the chuck of the carrier can be brought into the hole of the main shaft while holding the rod-shaped member. It can be carried out.

According to a sixth aspect of the present invention, there is provided an end processing machine for a rod-shaped member according to any one of the first to fifth aspects, wherein the headstock and the tailstock are provided. During this period, a steady rest is arranged at at least one of the positions on the side of the carriage of the headstock.

In the edge processing machine having the above structure, the bar-shaped member can be processed by the steady rest without shaking.

According to a seventh aspect of the present invention, there is provided an end portion processing machine for a rod-shaped member according to any one of the first to sixth aspects, wherein the tip end of the rod-shaped member being transferred is It is characterized by including a positioning sensor for detecting and stopping the movement of the carrier table based on the detection signal, thereby positioning the protruding position of the rod-shaped member.

In the edge processing machine having the above structure, the tip of the rod-shaped member is detected by the sensor, and based on the signal,
For example, the amount of movement of the carriage from that signal is measured, and the position of the tip of the rod-shaped member protruding from the headstock is set accordingly. The amount of movement of the carrier is measured by, for example, the amount of rotation of a motor for moving the carrier.

According to an eighth aspect of the present invention, there is provided an end processing machine for a rod-shaped member, wherein the end processing machine according to any one of the first to seventh aspects is installed on a side of a moving area of the transfer table and is used for transfer. The present invention is characterized in that the bucket is provided with a rod-shaped member supply device that receives the rod-shaped member from the inshoot and delivers the rod-shaped member to the work receiver.

In the end processing machine having the above construction, the rod-shaped member can be automatically supplied, and since the apparatus is installed on the side of the moving area of the carrier, it can be made compact. The shape of the surface of the transfer bucket that receives the rod-shaped member is V so that the rod-shaped member can be positioned stably, and the rod-shaped member can be easily handed over to the work receiver and easily removed from the work receiver. The letter shape is preferred. The bucket may be moved by a cylinder,
It may be performed by other means combining a motor and a chain or the like.

According to a ninth aspect of the present invention, there is provided a rod member end machining method, wherein the rod member end machining machine is used, and the rear end of the rod member is chucked by the chuck of the carrier. Clamp, move the carriage forward, and hold the rod-shaped member by the chuck of the headstock with the tip of the rod-shaped member passing through the hole of the headstock and protruding an appropriate amount from the headstock. The member is rotated and processed by the tool of the tool post, and when the processing is completed, the rod-shaped member is released from the chuck of the headstock, and the rod-shaped member is retracted by the carrier table, and the rod-shaped member is moved by the headstock. It is characterized in that the rod-shaped member is released from the chuck of the transfer table in a state where the rod-shaped member escapes from.

According to the above-described end processing method, even a long rod-shaped member is penetrated through the headstock and the processed portion of the rod-shaped member is supported by the headstock and the tailstock, so that the rod-shaped member having a long length is processed. Also, since the processed portion of the rod-shaped member is supported by a short length, the rigidity of the processed portion is ensured. Further, according to the above-described end processing method, the rod-shaped member can be set at the optimum processing position regardless of the length of the rod-shaped member.

According to a tenth aspect of the present invention, there is provided a method for processing an end portion of a rod-shaped member according to the second or third aspect of the present invention, wherein the work piece is machined at the retracted position of the carrier. It is characterized in that the receiver faces the moving area of the rod-shaped member and is retracted downward as the carriage moves to avoid interference with the carriage.

According to the above-described end processing method, the rod-shaped member is reliably supported and guided to the hole of the headstock.

Further, in the method for processing an end portion of a rod-shaped member according to an eleventh aspect of the present invention, the end portion processing machine for the rod-shaped member according to the seventh aspect is used, and the tip end of the rod-shaped member transferred by the carrier. Is detected by the sensor, the movement of the carrier is stopped based on the detection signal, and the processing end position of the rod-shaped member is positioned.

According to the above-mentioned end processing method, the tip of the rod-shaped member is detected by the sensor, and based on the signal,
For example, since the position of the tip of the rod-shaped member protruding from the headstock is determined by measuring the amount of movement of the carrier from the signal reception, the positioning accuracy of the rod-shaped member is high and the machining accuracy can be improved. it can. The amount of movement of the carrier can be measured, for example, by the amount of rotation of a motor for moving the carrier.

According to a twelfth aspect of the present invention, there is provided a bar-shaped end machining method, wherein the bar-shaped end machining machine is used, and the transport bucket receives the bar-shaped member from the inshoot. The transfer bucket delivers the rod-shaped member to the work receiving member, the processed bucket-shaped member is delivered by the transfer bucket, and the delivery bucket discharges the rod-shaped member to the outshoot.

According to the above-mentioned end processing method, since the rod-shaped member can be automatically supplied and discharged, the work can be carried out quickly and easily.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a bar member end processing machine and an end processing method according to the present invention will be described in detail below with reference to the accompanying drawings with reference to FIGS. 1 to 3. .

FIG. 1 is a schematic view of an end processing machine showing an embodiment of an end processing method for a rod-shaped member according to the present invention, and FIG. 2 is shown in FIG.
FIG. 3 is a schematic cross-sectional view of the main part of the carrier in FIG. 3, and FIG.

As shown in FIG. 1, the shaft end processing machine of this embodiment has a headstock 10, a carrier 20, a rod-shaped member support device 40, a rod-shaped member supply device 50, a tailstock 60, and a tool rest 70 on a base. And so on.

The headstock 10 includes a housing 11 and a main shaft 12
Is rotatably supported, a chuck 13 is arranged at the tip of the main shaft, and a steady rest 18 is provided at the rear end. The main shaft 12 is rotated by a motor 14 via a belt 15. In the carrier 20, a holder 22 is fixed to a housing 21a provided upright on a slider 21, and a bracket 23 is rotatably held by the holder.

As shown in FIG. 2, the bracket 23 has a cylinder 23a formed therein, and a piston 24 is housed in the cylinder 23a. A spring 25 is provided on a piston rod 24a protruding rearward of the piston 24, and the spring 24 biases the piston 24 rearward. The pressure chamber 23b defined by the piston 24 is supplied with oil liquid via a joint 26 installed at the rear end of the holder 22, and the pressure causes the piston 24 to move forward against the urging force of the spring 25. . When the pressure of the oil liquid is released, the piston 24 is returned to its original position by the urging force of the spring 25.

A chuck 27 is arranged at the tip of the carrier 20. The chuck 27 includes three claws 28 that are swingably disposed on the tip of the holder 23, and a cone 29 that expands and contracts the tips of the claws. The cone 29 is installed at the tip of the piston 24 and has a groove 29a on the peripheral surface. The base end of the claw 28 is fitted in the groove 29a, and the base end thereof is biased by the spring 30 toward the groove 29a of the cone 29. When the piston 24 is inactive,
The tip of each pawl 28 is located outward, and when the piston 24 is actuated, it is moved inward to grip the workpiece. Further, a servo motor 31 is mounted on the slider 21,
The carriage 20 moves by the servo motor.

The rod-shaped member supporting device 40 is installed at a plurality of places (four places in FIG. 1) below the transfer region of the rod-shaped member A along the transfer region, and is constituted by a work receiver 42 which is vertically moved by a cylinder 41. Has been done. As shown in FIG. 3, the limit switch 4 is provided near each cylinder 41.
3 are installed. A dog 44 is arranged on the slider 21 of the carrier 20, and each limit switch 43 is operated by the dog.

The rod-shaped member supply device 50 is installed on the side of the rod-shaped member support device 40, and can be moved up and down by the cylinder 51 above the work receiver 42, and the cylinder 52.
Is installed so as to be able to move forward and backward with respect to the transfer area of the rod-shaped member A, and is installed along the transfer area at the side of the transfer bucket 53 for delivering the rod-shaped member A to the work receiver 42 and the transfer area of the rod-shaped member A. The in-shoot 54 and the out-shoot 55 are included.

In the bar-shaped member supply device 50, the delivery bucket 53 receives the bar-shaped member A supplied from the inshoot 54 at the position shown in FIG. Delivery bucket 5
When the rod-shaped member A is supplied to 3, the cylinder 51 is operated and the delivery bucket 53 is lowered. The delivery bucket 53 is lowered below the work receiver 42 waiting at the upper position, but is delivered to the work receiver 42 midway. Thereafter, the delivery bucket 53 is laterally retracted from the transfer area of the rod-shaped member A by the cylinder 52, further moved upward by the cylinder 51, and then returned to the original position by the cylinder 52.

The rod-shaped member A transferred to the work receiver 42
As will be described later, the rear end is held by the chuck 26 of the transfer table 20 and transferred to the headstock 10. When the carrier 20 moves, the dog 44 moves the limit switch 43.
Is operated, the cylinder 41 is operated and the work receiver 42 is lowered. Therefore, when the carrier 20 approaches, the work receiver 42 located immediately before is retracted from the moving area of the carrier 20. The other work receivers 42 remain in the upper position and support the rod-shaped member A until the transfer table 20 approaches.

When the rod-shaped member A reaches the processing position, all the work receivers 42 are lowered. Those work receiving 42
When the processing of the rod-shaped member A is completed and the rod-shaped member A returns to the original position again, the rods are sequentially raised by the cylinder 41 to support the rod-shaped member A again. Then, when the chuck 26 of the carrier 20 releases the rod-shaped member A and the carrier 20 returns to the initial position, the work receiver 42 is further lowered, and the rod-shaped member A falls on the out chute 55 in conjunction therewith. Is discharged to the outside of the machine by the outshoot. After that, the work receiver 42 is raised and returned to its original position until a new rod-shaped member A is supplied.

The bar-shaped member processing machine is provided with a steady rest 80 between the headstock 10 and the tailstock 60 to prevent the bar-shaped member A from swinging. Further, a sensor 90 for confirming the set position of the rod-shaped member A is installed in the vicinity of the headstock 10 between the headstock 10 and the carriage 20.

In the shaft end processing machine having the above-mentioned structure, shaft processing is performed by the following procedure. That is, the rod-shaped member A is
The rod-shaped member supply device 50 supplies the work from the inshoot 54 to the work receiver 42 of the rod-shaped member support device 40.
Then, the carrier 20 moves forward, and the chuck 26 of the carrier is moved.
The end portion of the rod-shaped member A is clamped by. The rod-shaped member A is advanced by the carrier, and its tip end is the headstock 1.
It penetrates through the hole 16 of 0 and is projected from the headstock 10 by the required length to be machined. The rod-shaped member A is clamped at that position by the chuck 13 of the headstock 10. The length of the rod-shaped member A protruding from the front surface of the chuck 13 is measured by detecting the tip of the rod-shaped member A with the sensor 90 and measuring the amount of movement of the rod-shaped member A thereafter. Then, the tailstock 60 is advanced to move the center 61 of the tailstock A to the rod-shaped member A.
The end face of the rod-shaped member A is supported.
Then, the rod-shaped member A is clamped by the steady rests 18 and 80.

Next, the spindle 12 of the spindle stock 10 is rotated to rotate the rod-shaped member A, and the end of the rod-shaped member A is processed by the blade 71 of the tool rest 70. When the processing is completed, the rod-shaped member A is released from the chuck 13 and the steady rests 18, 80 of the headstock 10. After that, the carrier 20 is moved toward the initial position, and the rod-shaped member A is moved along with it.
2 escapes from the headstock 10. Next, when the rod-shaped member A reaches the rod-shaped member support device 40, the work receiver 42 rises to support the rod-shaped member A. After that, the end of the rod-shaped member A is released from the chuck 26 of the carrier 20, and the carrier 20 having released the rod-shaped member A is further moved to return to the original position.

The end processing machine for a rod-shaped member shown in the above embodiment discloses one example of the present invention, and the present invention is not limited to the above embodiment.

[0044]

As described above, in the machine for processing an end portion of a rod-shaped member according to claim 1 of the present invention, the rear end of the rod-shaped member is clamped by the chuck of the transfer table, and the transfer table is advanced to form the rod-shaped member. The tip of the member passes through the hole of the headstock and is grasped by the chuck of the headstock while protruding from the headstock by an appropriate amount, and in that state, the rod-shaped member is rotated and the end of the rod-shaped member is rotated by the tool of the tool rest. And releasing the rod-shaped member from the chuck of the headstock upon completion of processing, retracting the rod-shaped member by the carrier table, and removing the rod-shaped member from the headstock from the chuck of the carrier table. Can be released. Therefore, since the processed portion of the rod-shaped member is supported by the headstock and the tailstock by penetrating the headstock, it is possible to process even a rod-shaped member having a long length, and the processed portion of the rod-shaped member is supported by a short length. Therefore, the rigidity of the processed portion can be secured.

According to a second aspect of the present invention, there is provided a rod-shaped member end working machine, wherein when the rod-shaped member is guided by the work holder into the hole of the headstock when the rod-shaped member is transferred by the carrier. Interferes with the carrier, so the work receiver is retracted from the moving area of the carrier. Therefore, the rod-shaped member can be reliably guided to the hole of the headstock.

In the machine for processing an end portion of a rod-shaped member according to claim 3 of the present invention, since a plurality of work receivers are arranged,
It is possible to deal with rod-shaped members having different lengths, and it is possible to reliably guide the rod-shaped members to the holes of the headstock.

In the rod-shaped member end processing machine according to claim 4 of the present invention, since the chuck is composed of a cone operated by a cylinder and a plurality of claws operated by the cone, the structure is It is simple and the rod-shaped member can be surely centered.

In the rod-shaped member end processing machine according to the fifth aspect of the present invention, when the rod-shaped member is short, the chuck of the carrier can be brought into the hole of the spindle while holding the rod-shaped member. It is also possible to process extremely short rod-shaped members.

According to the sixth aspect of the present invention, the rod-shaped member end working machine supports the rod-shaped member without swinging by the steady rest, so that highly accurate processing can be performed.

In the rod-shaped member end processing machine according to the seventh aspect of the present invention, the tip of the rod-shaped member is detected by the sensor, the amount of movement of the carrier is measured based on the signal, and the end is ejected from the headstock. Since the position of the tip of the rod-shaped member is set, the rod-shaped member can be positioned with high accuracy, and the processing accuracy can be improved.

In the machine for processing an end portion of a rod-shaped member according to the eighth aspect of the present invention, since the rod-shaped member can be automatically supplied, the processing operation can be performed quickly and easily.

According to the method for processing an end portion of a rod-shaped member according to the present invention, even a rod-shaped member having a long length is passed through the headstock and the processed portion of the rod-shaped member is supported by the headstock and the tailstock. Let Therefore, it is possible to process a rod-shaped member having a long length, and since the processed portion of the rod-shaped member is supported by a short length, the rigidity of the processed portion is ensured, and the rod-shaped member is irrespective of the length of the rod-shaped member. It can be set at the optimum processing position.

According to the method of processing the end portion of the rod-shaped member according to the tenth aspect of the present invention, the rod-shaped member is reliably guided to the hole of the headstock.

According to the method for processing an end portion of a rod-shaped member according to claim 11 of the present invention, the tip of the rod-shaped member is detected by the sensor, and the position of the tip of the rod-shaped member projected from the headstock is detected based on the signal. Therefore, the positioning accuracy of the rod-shaped member is high, and the processing accuracy can be improved.

According to the method for processing an end portion of a rod-shaped member according to a twelfth aspect of the present invention, since the rod-shaped member can be automatically supplied and discharged, the processing operation can be performed quickly and easily. .

[Brief description of drawings]

FIG. 1 is a schematic view showing an entire end processing machine for rod-shaped members according to the present invention.

FIG. 2 shows a main part of the carrier in FIG. 1, and FIG.
Is a sectional view in the axial direction, and FIG. 2B is a sectional view perpendicular to the axial direction.

3 is a schematic view showing a rod-shaped member support device and a rod-shaped member supply device in FIG. 1, FIG. 3 (a) is a front view,
FIG. 3B is a side view.

FIG. 4 is a schematic view showing a conventional end processing machine for a rod-shaped member.

[Explanation of symbols]

10 Headstock 12 spindles 13 chuck 18 steady rest 20 carrier 21 Slider 23 Bracket 24 pistons 25 springs 27 chuck 28 nails 29 cones 30 spring 40 Rod-shaped member support device 41 cylinders 42 Work receiving 43 Limit switch 44 dog 50 Rod-shaped member supply device 51,52 cylinders 53 transport buckets 54 In Shoot 55 Outshoot 60 tailstock 61 Center 70 Turret 71 cutlery 80 steady rest 90 sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B23Q 1/76 B23Q 1/24 R (72) Inventor Mitsuo Machida 5 Showanuma, Shobu-cho, Minamisaitama-gun, Saitama Prefecture Nissei Urawauchi F-term (reference) 3C032 BB03 HH12 3C045 CA05 DA04 FA03 FC38 3C048 BB15

Claims (12)

[Claims] 1. A chuck provided rotatably,
The chuck has one end of the rod-shaped member clamped and has a carrier table for transporting the rod-shaped member in its axial direction, and a hole into which the rod-shaped member is fitted on the main shaft, and the rod-shaped member fitted into the hole is clamped. A headstock equipped with a chuck and a tailstock for rotatably clamping the other end of the rod-shaped member are arranged in this order, and a tool rest for processing the other end of the rod-shaped member with a tool is An end processing machine for rod-shaped members, which is arranged between a tailstock and the headstock. 2. A work receiver for supporting the rod-shaped member,
It is installed between the carrier and the spindle so as to be vertically movable, and the rod-shaped member is positioned in the transfer area with the work receiver positioned above, and the work receiver is moved along with the movement of the carrier. 2. The machine for processing an end part of a rod-shaped member according to claim 1, further comprising a work support device that descends so as to retract the workpiece from the transfer area of the rod-shaped member. 3. A plurality of the work receivers are arranged along a transfer area of the rod-shaped member, switches are arranged corresponding to the work receivers, and a dog is arranged on the carrier table. 3. The machine for processing an end portion of a rod-shaped member according to claim 2, wherein each of the workpiece receivers is moved up and down by sequentially operating the switches with a dog. 4. The chuck of the carrier has a cone that moves forward and backward in the axial direction by a cylinder, and a plurality of pawls that oscillate in the radial direction around the cone, and the base end of the pawl is a spring. Is made to contact the peripheral surface of the cone by the urging force of the cone, and the tip of the claw is swung inward in the radial direction by protruding the cone, and the rod-shaped member is gripped by the claw. Claim 1 to
The end part processing machine of the rod-shaped member as described in any one of 3 above. 5. The rod-shaped member according to claim 1, wherein the hole of the headstock is large enough to accommodate the chuck of the transport table. Edge processing machine. 6. A steady rest is provided between the headstock and the tailstock at least at a position on a side of the carriage of the headstock.
5. An end processing machine for bar-shaped members according to any one of 5 above. 7. A positioning sensor is provided which detects the tip of the rod-shaped member to be transferred, stops the movement of the carrier based on the detection signal, and thereby positions the protruding position of the rod-shaped member. The end processing machine for a rod-shaped member according to any one of claims 1 to 6, characterized in that. 8. The apparatus is installed on a side of a moving area of the carrier,
8. A rod-shaped member supply device that receives the rod-shaped member from an inshoot by a transport bucket and delivers the rod-shaped member to the work receiver.
The end part processing machine for the rod-shaped member according to. 9. The rod-shaped member end processing machine according to claim 1, wherein the rear end of the rod-shaped member is clamped by a chuck of a transfer table, and the transfer table is advanced so that the tip of the bar-shaped member is the main shaft. The rod-shaped member is gripped by the chuck of the headstock while passing through the hole of the base and appropriately protruded from the headstock, and the rod-shaped member is rotated in that state to be processed by the tool of the tool rest. When the machining is completed, the rod-shaped member is released from the chuck of the headstock, the rod-shaped member is retracted by the carrier, and the chuck of the carrier is released from the headstock. A method for processing an end portion of a rod-shaped member, comprising: releasing the rod-shaped member from the end. 10. Using the end processing machine for a rod-shaped member according to claim 2 or 3, the work receiver is exposed to the moving area of the rod-shaped member at the retracted position of the conveyance table, A method for processing an end portion of a rod-shaped member, which is retracted downward along with movement to avoid interference with the carrier. 11. The rod-shaped member end processing machine according to claim 7 is used, and the tip of the rod-shaped member transferred by the carrier is detected by the sensor. A method for processing an end portion of a rod-shaped member, comprising: stopping the movement of a carrier to position a processing end position of the rod-shaped member. 12. The rod-shaped member end processing machine according to claim 8, wherein the transport bucket receives the rod-shaped member from the inshoot, and the transport bucket delivers the rod-shaped member to the workpiece receiver. A method for processing an end portion of a rod-shaped member, characterized in that the rod-shaped member after processing is taken by the transport bucket, and the rod-shaped member is discharged to the outshoot by the transport bucket.