KR200220905Y1 - Machining system for telescopic pipe - Google Patents

Abstract

Disclosed is a system for processing telescopic pipes for use in vacuum cleaners. The telescopic pipe processing system includes: a kicker for loading a plurality of material pipes and separating a plurality of the material pipes and supplying them in the longitudinal direction; A plurality of cutting devices for cutting the respective material pipes drawn from the kicker to a set length; A plurality of primary chamfering devices for chamfering both ends of each pipe cut by the plurality of cutting devices; A plurality of shaft expansion apparatuses respectively configured for shaft pipe processing and expansion pipe processing for both ends of the respective pipes processed by the plurality of primary chamfering devices; A plurality of secondary chamfering devices for chamfering the expansion ends of the respective pipes which are expanded with the shaft pipes in the plurality of shaft expansion pipes; A transfer unit for moving a plurality of pipes in which unit processing is completed in each device to a next device of each device; And a controller for controlling each of the devices. Such a system allows each processing process of telescopic pipes to be automated to improve productivity, and to process telescopic pipes of high quality and uniform quality.

Description

Machining system for telescopic pipe

The present invention relates to a telescopic pipe processing system, and more particularly to a telescopic pipe processing system capable of automatically processing a telescopic pipe used in the vacuum cleaner.

Telescopic pipe is a component of a vacuum cleaner, and is used to connect a suction port for suctioning dirt and dust and a main body of the vacuum cleaner to generate suction force. The telescopic pipe has a flexible construction to adjust its length as needed.

Referring to the conventional processing system for producing a telescopic pipe having such a function as follows.

The conventional processing system has a dedicated machine for performing the processing corresponding to each process, and is configured to allow the worker to carry and carry the pipes between the processes. A chamfering dedicated shelf for chamfering both ends of the used pipe, an expansion pipe for expanding one end of the pipe, and an axis pipe for pipe fitting the other end of the pipe are separately provided.

The operator picks up one material pipe from the material pipe loading part in which a plurality of material pipes are loaded and loads it on the cutting lathe. Adjust the loaded material pipe to protrude to the required length and cut the material pipe using the cutting bite.

The worker carries the cut pipe to fix one end of the pipe to the chuck of the chamfering lathe. Rotate the lathe to chamfer with the chamfering tool and unload the pipe. Then, the chamfering side is fixed to the chuck again and the chamfering process is performed on the opposite side of the pipe.

After the chamfering work, the worker carries the chamfered pipe back to the tube and loads it into the tube to process the tube. After the shaft processing is completed, it moves to the expander to expand the other side.

When the expansion is completed, the worker carries the shaft pipe and the pipe with completed pipe to the chamfering shelf to fix the shaft pipe part to the chuck of the lathe so as to process the expanded end. After completing the chamfering operation of the expansion end with the chamfering tool and storing it in the finished goods loading box, the processing of the telescopic pipe is completed.

By the way, when the worker processes by hand using the machine of each process in this way, there is a problem that the productivity is low, the quality of the processed product is nonuniform.

The present invention was devised to improve the above problems, and the telescopic pipe processing system which can process the telescopic pipe with high productivity, high quality and uniform quality by automating each processing and conveying process of the telescopic pipe. The purpose is to provide.

1 is a plan view showing a telescopic pipe processing system according to a first embodiment of the present invention,

FIG. 2 is a view seen from A-A of FIG. 1;

3 is a view seen from B-B of FIG.

4 is a view seen from C-C of FIG.

FIG. 5 is a view seen from D-D of FIG. 1;

6 is a view seen from E-E of FIG.

7 is a partial cross-sectional view briefly showing the axial expansion pipe processing state in a telescopic pipe processing system according to a first embodiment of the present invention,

Figure 8 is a perspective view showing a telescopic pipe is completed by the telescopic pipe processing system according to a first embodiment of the present invention,

9 is a plan view showing a telescopic pipe processing system according to a second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

One; Pipe 1 '; Pipe

100; Kicker 110; Stocker

120; Pipe loading unit 130; Pipe feeder

140; Dustproof device 200; Cutting device

210; Spindle unit 230; Holding unit

240; Cutter unit 260; Stopper Unit

300; Primary chamfering device 310; First fixing means

330; First chamfering unit 340; 2nd chamfering unit

350; First transfer unit 360; 2nd transfer unit

400; Axial expansion device 410; Second fixing means

430; A conduit unit 450; Expansion unit

500; Secondary chamfering device 510; Third fixing means

530; Third chamfering unit 550; 3rd transfer unit

600; Transfer unit 610; Pipe storage

620; Transfer unit 630; Lift

700; Unloading unit 800; controller

Telescopic pipe processing system according to a first embodiment of the present invention to achieve the above object, a kicker for loading a plurality of material pipes, separating the plurality of the material pipes to be supplied in the longitudinal direction; A plurality of cutting devices for cutting the respective material pipes drawn from the kicker to a set length; A plurality of primary chamfering devices for chamfering both ends of each pipe cut by the plurality of cutting devices; A plurality of shaft expansion apparatuses respectively configured for shaft pipe processing and expansion pipe processing for both ends of the respective pipes processed by the plurality of primary chamfering devices; A plurality of secondary chamfering devices for chamfering the expansion ends of the respective pipes which are expanded with the shaft pipes in the plurality of shaft expansion pipes; A transfer unit for moving a plurality of pipes in which unit processing is completed in each device to a next device of each device; And a controller for controlling each of the devices.

Here, the axial expansion device, the second fixing means for holding and fixing the central portion of the pipe; A shaft pipe die installed at one end of the pipe to be aligned with the center of the pipe and movable in the longitudinal direction of the pipe; An expansion pipe die installed to be movable in a position opposite to the shaft pipe die; And two hydraulic cylinders for moving the shaft tube die and the expansion tube die in the longitudinal direction, respectively.

In addition, the kicker, the stocker is loaded with the material pipe; A pipe loading unit separating and loading the plurality of material pipes from the stocker; A pipe conveying part for introducing the plurality of raw material pipes loaded by the pipe loading part into the cutting device; It includes; dustproof device for supporting the rotation of the material pipe.

Wherein the pipe loading unit, a plurality of pipe separation unit consisting of the inclined bracket and the loading cylinder; And a guide bracket for guiding a plurality of raw material pipes separated and raised by the pipe separation unit to a pipe transfer part corresponding to the pipe transfer part.

Telescopic pipe processing system according to a second embodiment of the present invention, a kicker for loading a plurality of material pipes, separating the loaded material pipes one by one to supply in the longitudinal direction; A cutting device for cutting the material pipe drawn from the kicker to a predetermined length; Primary chamfering device for chamfering both ends of the pipe cut in the cutting device; An axial expansion device configured to simultaneously perform shaft pipe processing and expansion pipe processing on both ends of the pipe processed by the primary chamfering device; A secondary chamfering device for chamfering the expansion end of the pipe which is expanded with the shaft pipe in the shaft expansion pipe device; A transfer unit for moving the pipes in which the unit processing is completed in each device to a next device of each device; And a controller for controlling each of the devices.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a telescopic pipe processing system according to the present invention.

1 to 7 is a view showing a telescopic pipe processing system according to a first embodiment of the present invention.

Referring to the drawings, the telescopic pipe processing system according to the first embodiment processes two pipes at the same time, the kicker 100, the cutting device 200, the primary chamfering device 300, the shaft expansion device 400, The secondary chamfering device 500, the transfer unit 600 and the controller 800.

The kicker 100 is a device which separates a plurality of material pipes 1 that are loaded into the cutting device 200, and includes a stocker 110 for loading a plurality of material pipes 1 and a stocker 110. A pipe loading part 120 which separates the material pipe 1 from the pipe 1 and loads it onto the lower dustproof roll unit 147 of the dustproof device 140, and the material pipe 1 loaded on the lower dustproof roll unit 147. ), The pipe conveying unit 130 for introducing the hollow spindle 217 of the cutting device 200, and the vibration isolator supporting the rotation of the material pipe 1 when the cutting device 200 rotates the material pipe (1) It consists of 140.

Stocker 110 is a stop formed on the end of the mounting plate 111 and the inclined plate 112 and the inclined plate 112 extending in front of the mounting table 111 for loading a plurality of material pipe (1) in the transverse direction It consists of a stage (113).

The dustproof device 140 is installed in front of the stocker 110. The dustproof device 140 includes a plurality of lower dustproof roll units 147 assembled on the frame and the upper portion of the frame, and a plurality of lower dustproof roll units 147 installed to correspond to the lower dustproof roll unit 147. The upper dustproof roll unit 145 is included.

The lower dustproof roll unit 147 is provided with two rolls at a constant angle so as to support the outer circumference of the material pipe 1. In this embodiment, two sets of two rolls are provided so as to support the two material pipes 1, respectively. The number of the lower dustproof roll units 147 is determined by the quantity of the material pipe 1 which can be rotated smoothly according to the length of the material pipe 1, and preferably four are provided.

The upper antivibration roll unit 145 is composed of a pneumatic cylinder 145a and two guide bushes 145b to allow the lower antivibration roll unit 147 to move up and down. On the rod of the pneumatic cylinder 145a, two roll sets 145c corresponding to two roll sets of the lower dustproof roll unit 147 are assembled to support two pipes.

The pipe rod 120 is installed between the stocker 110 and the vibration isolator 140. The pipe loading unit 120 separates two pipes of the material pipe 1 loaded on the stocker 110 and lifts the pipe separation unit 121 and two pipes into roll sets of the lower dustproof roll unit 147, respectively. It consists of a guide bracket 122 to guide.

Pipe separation unit 121 is composed of the inclined bracket (121a) and the pneumatic cylinder (121b) and is installed in a quantity capable of sufficiently lifting the material pipe (1). The inclined bracket 121a has a notch portion having an inclination at an angle at which one surface is vertical and the other surface is smoothly rolled by the material pipe 1. The sensor 125 is attached to the inclined portion of the inclined bracket 121a to determine whether the material pipe 1 is loaded.

The pipe feeder 130 is installed just before the inlet 219 of the cutting device 200, and consists of a driving roll unit 131, a lower roll unit 135, and a plurality of support roll units 137. The drive roll unit 131 again includes a motor (not shown), four rolls 131d, and elevating means, and the four rolls 131d are configured to rotate by the motor, the belt, and the belt pulley 131c. The lifting means consists of a pneumatic cylinder 131a and four guide bushes 131b.

The lower roll unit 135 is installed so as to correspond to the four rolls 131d of the driving roll unit below the driving roll unit 131 by moving the material pipe 1 along the driving roll unit 131 in the longitudinal direction. do. The lower roll unit 135 includes four lower rolls 135a, elevating means, and a base 135b, and the elevating means includes a pneumatic cylinder 135c and four guide bushes 135d.

The support roll unit 137 is installed at the rear side of each lower dustproof roll unit 147 of the above-described dustproof device 140, and has a ball shape that matches the shape of the material pipe 1 so that the material pipe 1 is smoothly transferred. It consists of the formed roll 137a and the pneumatic cylinder 137b which turns this ball roll 137a at a predetermined angle.

The cutting device 200 is a device for cutting the material pipe 1 to a predetermined length, and includes a spindle unit 210, a holding unit 230, a cutter unit 240, and a stopper unit 260. .

The spindle unit 210 rotates the material pipe 1 and includes a motor 211, hollow spindles 217, and a hydraulic chuck 215. The motor 211 is a power source for rotating the hollow spins 217 by the belt power transmission 213, the hydraulic chuck 215 is mounted on the hollow spins 217 and passed through the hollow spins 217 The pipe 1 is gripped so that the material pipe 1 rotates. The hydraulic chuck 215 automatically bites the material pipe 1 in response to the material pipe 1 drawing-in completion signal by the automatic chuck.

The holding unit 230 supports the pipe 1 ′ cut from the material pipe 1, and includes a holder 231 having a pair of fingers and a pneumatic hand 235 for opening and closing the holder 231. The holder 231 has a structure that can be opened and closed and has a circular shape in a closed state to support the cut pipe 1 'stably, and a roller 233 is assembled at both ends of a pair of fingers to cut the material. It can support the rotational movement of the pipe (1).

The cutter unit 240 is a device for cutting the material pipe 1 to a predetermined cutting length, and the work cutter 241 and the work cutter 241 having the same structure as the cutting bite of the lathe by sliding up and down the material pipe ( It is composed of a cutter lifting unit 243 giving a cutting depth to cut 1). The cutter lifting unit 243 is vertically conveyed by the hydraulic cylinder, and determines the conveying length by the sensor.

The stopper unit 260 is a device that prevents the introduction of the material pipe 1 any more when the pipe 1 is transferred to the cutting device 200 when the pipe pipe 130 is moved to a predetermined length. And a pneumatic cylinder 263. As the pneumatic cylinder 263 moves forward and backward, the stopper 261 is configured to move forward and backward in the direction of the hydraulic chuck 215 with respect to the fixed bracket. Preferably, the unit moving means 265 is provided to move the stopper unit 260 in the forward and backward directions of the stopper 261 so as to cut the material pipe into various kinds of lengths.

The primary chamfering device 300 is a device for chamfering, that is, chamfering at both ends of the pipe 1 ′ cut to a predetermined length in the cutting device 200, and fixing two pipes 1 ′. The first fixing means 310 and the left and right chamfering unit (330,340) for chamfering both ends of the pipe (1 ') and the transfer unit (350,360) for transferring the chamfering unit.

The first fixing means 310 includes a pair of lower fixing blocks 313 and upper clamps 311 installed to support both ends of the pipe 1 ′.

The lower fixing block 313 is installed at each of the left and right sides of the pipe 1 'at a height at which both ends of the pipe 1' are coincident with the chamfering tools 333 and 343 of the chamfering units 330 and 340, respectively. The upper side of the fixed block 313 is machined arc-shaped grooves to fit the pipe shape so as to stably support the pipe (1 ').

The upper clamp 311 consists of a pneumatic cylinder 311a, a guide bush 311b, and an upper fixing block 311c, and is installed at an upper side of the position corresponding to the lower fixing block 313 described above. Fix it. As the rod of the pneumatic cylinder 311a moves forward and backward, the upper fixing block 311c moves up and down with respect to the lower fixing block 313, and the raising and lowering is guided by the guide bush 311b.

The chamfering unit is a device for chamfering by rotating the chamfering tools (333, 343), the first and second chamfering units (330, 340) on the left and right of the pipe (1 '). Each chamfering unit 330, 340 includes a chamfering tool 333, 343, tool spindles 332, 342 for mounting the chamfering tool, and motors 331, 341 for rotating the tool spindles.

The transfer units 350 and 360 transfer the first and second chamfering units 330 and 340 with respect to the pipe 1 'to set a cutting depth, and correspond to the respective chamfering units 330 and 340, respectively. There are two transfer units 350 and 360. Each transfer unit 350, 360 is composed of a hydraulic cylinder 361 and a rail.

The shaft expansion device 400 includes a plurality of second fixing means 410, the shaft pipe unit 430, and the expansion pipe unit 450.

Since the second fixing means 410 fixes the pipe 1 ′ at the time of axial expansion, the second fixing means 410 has the same configuration as the first fixing means 310 of the primary chamfering apparatus 300 described above. Omit.

The shaft tube unit 430 is an apparatus for making the outer diameter of one end of the pipe 1 'smaller than the diameter of the raw material pipe 1, and includes a shaft tube die 431 and a hydraulic cylinder 433.

Expansion unit 450 is a device for making the outer diameter of the other end of the pipe (1 ') larger than the diameter of the raw material pipe (1), it is composed of expansion tube 451 and the hydraulic cylinder (453).

The shaft unit 430 and the expansion unit 450 are installed to form the same axis as the pipe 1 'on both sides of the pipe 1' fixed to the lower fixing block 413 of the second fixing unit 410. As the hydraulic cylinders 433 and 453 are advanced, the shaft pipe die 431 and the expansion pipe die 451 can simultaneously perform shaft pipe processing and expansion pipe processing on both ends of the pipe 1 '.

Secondary chamfering device 500 is a device for chamfering the expansion end of the pipe (1 ') of the axial expansion pipe processing, a plurality of third fixing means 510, the third chamfering unit 530 It includes a third transfer unit 550. A stopper means for aligning the position of the expansion end is further added thereto.

The third fixing means 510 has the same configuration as the first fixing means 310 described above, and the third chamfering unit 530 has the same configuration as the first and second chamfering units 330 and 340. The third transfer unit 550 has the same configuration as that of the first and second transfer units 350 and 360, and thus a detailed description thereof will be omitted. The stopper means is composed of a fixed stopper 563 installed on the shaft end of the pipe 1 'and a chamfering stopper 562 assembled on the expansion end. The chamfering stopper 562 advances back and forth by the pneumatic cylinder 561.

The transfer unit 600 is a device which transfers the pipe 1 'between each device mentioned above. That is, the pipe 1 ′ in which the cutting is completed in the cutting device 200 is a primary chamfering device 300, and the pipe 1 ′ in which the chamfering processing is completed in the primary chamfering device 300 is an axis expansion pipe device ( 400, the pipe 1 ′ whose both ends are axially piped and expanded in the axial expansion device 400 is the secondary chamfering device 500, and the chamfering is completed in the secondary chamfering device 500. Is transferred to the unloading unit 700. In order to transport the pipe 1 'between the devices, the distance between the devices must be the same.

The transfer unit 600 includes a pipe storage unit 610, a transfer unit 620, and a lifting unit 630. The pipe storage part 610 grips the pipe 1 'to be transported, and a plurality of fixing blocks 615 are attached to positions corresponding to each device on the transport plate 611. In order to fix the pipe 1 ', at least two fixing blocks are required per pipe, and therefore, when machining two pipes simultaneously in each apparatus, at least four fixing blocks are required. Therefore, in the case of this embodiment, since two pipes are processed simultaneously by four devices, the set of four fixed blocks 615 on the transfer plate 611 is one set, and this set of fixed blocks is equal to the distance between the devices. It is arranged in four rows at intervals.

The conveying unit 620 reciprocates the pipe housing 610 at a predetermined pitch, such as a motor (not shown) as a driving source, a ball screw 621 for converting the rotational motion of the motor into a linear motion, and a linear motion. It consists of a linear guide 623 to guide. When the motor rotates, the ball screw 621 rotates, and the ball nut screwed with the ball screw 621 is a straight motion. Accordingly, the conveying plate 611 of the pipe storage portion coupled to the ball nut is guided and moved by the linear guide 623 (see Fig. 4).

The elevating unit 630 is an apparatus for elevating the pipe storage unit 610 up and down. An elevating cam for converting a horizontal straight movement of the hydraulic cylinder 633 as a driving source and the hydraulic cylinder 633 into an elevating movement up and down ( 635 and a plurality of guide bushes 631 for guiding the lifting movement. Since the hydraulic cylinder 633 is installed in the horizontal direction and the rod is fixed to one end of the lifting cam 635 supported by the hinge, the other end of the lifting cam 635 is moved when the hydraulic cylinder 633 performs a straight reciprocating motion. You will be turning at a certain angle. The other end of the elevating cam 635 is installed so that the base of the conveying unit 620 is brought into contact with the cloud so that the conveying unit 620 can be elevated up and down by the pivoting movement of the elevating cam 635. In addition, the guide bush 631 is installed on both lower ends of the transfer unit 620 is installed to guide the lifting movement of the transfer unit 620.

The unloading unit 700 is a pipe stacking box containing a guide bar 701 for unloading the pipe 1 'placed in the fixed block 615 of the transfer unit 600 and the unloaded pipe 1'. It is made up of 703.

Unexplained 710 and 720 are hydraulic generators for generating hydraulic pressure used in the respective hydraulic cylinders.

Each device described above is connected to the controller 800 so as to perform the processing of each process sequentially under the control of the controller 800.

Here, in order to maximize the production efficiency of the telescopic pipe processing system, an idle unit may be inserted between the first chamfering device 300 and the shaft expansion device 400. It is typically inserted to maintain process balance because the cutting and primary chamfering of pipes require less processing time than axial expansion. The idle unit is generally composed of a pipe storage unit and a pipe loading unit for loading the pipe into the fixed block of the shaft expansion device.

Hereinafter, the operation of the telescopic pipe processing system having the configuration as described above will be described.

The worker manually loads a plurality of material pipes 1 on the stocker 110 of the kicker 100 and arranges a certain amount of the material pipes 1 on the inclined plate 112 of the stocker. Then, the rod of the pneumatic cylinder 121b of the pipe separation unit 121 is advanced to raise the inclined bracket 121a. Two material pipes 1 are caught on the top of the inclined bracket 121a, separated from the inclined plate 112 of the stocker, and then lifted. Then, when the rod of the pneumatic cylinder 121b is reversed, the two material pipes 1 are guide brackets ( 122 is guided onto each of the lower dustproof roll unit 147 and rolled down.

When the two material pipes 1 are respectively loaded on the lower dustproof roll unit 147, the lower roll unit 135 of the pipe conveying unit 140 is raised, and the pneumatic cylinders 137b of the plurality of support roll units 137 are provided. The rod of 119 advances and the ball roll 137a is positioned to the pipe feed position. At this time, the driving roll unit 131 located above the lower roll unit 135 is lowered to press the material pipe 1 against the roll 135a of the lower roll unit 135. Since the driving roll unit 131 starts the lowering movement and simultaneously rotates the driving roll 131d, the material pipe 1 is hollow hollow 217 of the cutting device 200 by the frictional force of the driving roll 131d. Will be drawn into.

The driving roll 131d of the pipe transfer unit 130 descends to draw in the material pipe 1 and the stopper 261 of the stopper unit 260 of the cutting device 200 advances. When the material pipe 1 enters the stopper 261, the sensor installed on the side of the stopper 261 outputs a signal to operate the hydraulic chuck 215 of the spindle unit 210 to chuck the material pipe 1. When the material pipe 1 is chucked, the motor of the driving roll unit 131 is stopped and at the same time the driving roll unit 131 is raised, the lower roll unit 135 starts to descend, and the plurality of supporting roll units 137 The rod of the pneumatic cylinder 137b of () is reversed to return to the original position. At the same time, the holding unit 230 of the cutting device 200 and the vibration isolator 140 of the kicker 100 are operated to support the rotation of the material pipe 1. The holder 231 of the holding unit 230 is in the holding position by closing the finger of the holder 231 by the pneumatic hand 235, the upper dustproof roll unit 145 of the vibration isolator 140 is a pneumatic cylinder (145a) When the rod is advanced, the anti-vibration roll 145c attached to the front end of the rod is lowered by the guide of the guide bush 145b to support the rotation of the material pipe 1.

When the vibration isolator 140 and the holding unit 230 supports the material pipe 1, the spindle motor 211 starts to rotate, the material pipe 1 is rotated. At this time, the stopper 261 of the stopper unit 260 reverses and returns to its original position, and the cutter units 240 on both sides start to descend at a constant speed.

When the cutter unit 240 descends a predetermined distance, the material pipe 1 is cut to a predetermined length. The cutter unit 240 returns to its original position by rising in the opposite direction when the lowering is completed. The cutter unit 240 moves in the opposite direction and stops the hollow spindles 217 and the hydraulic chuck 215 releases the chucking state. When the chucking is released, the pneumatic hand 235 of the holder unit 230 is operated to release the cut pipe 1 'supported by the finger of the holder 231 being opened. At this time, since the transfer unit 600 is located under the cutting device 200 in an elevated state, the cut pipe 1 (hereinafter referred to as “pipe”) is positioned at the fixed block 615 of the pipe storage part 610. Done. When the holder 231 unclamps the pipe 1 ′, the driving roll unit 131 of the pipe conveying unit 130 is driven again to draw the material pipe 1 into the hollow spindles 217 of the cutting device 200. Will do the work.

When the pipe 1 ′ is placed on the fixed block 615 of the pipe storage unit 610, the motor of the transfer unit 620 of the transfer unit 600 is operated, and the ball screw 621 is rotated by the motor so that the pipe is rotated. The accommodating part 610 is advanced and the pipe 1 ′ is transferred to the primary chamfering device 300. When the forwarding of the transfer unit 600 is completed, the transfer plate 611 is lowered by the hydraulic cylinder 633 of the lifting unit 630 of the transfer unit 600. When the transfer plate 611 is lowered, the two pipes 1 ′ placed on the fixed block 615 of the transfer plate 611 are respectively disposed on the pair of lower fixing blocks 313 of the first fixing means 310. Will be placed. When the pipe 1 'is placed on each lower fixing block 313, the upper fixing block 311c is lowered by the pneumatic cylinder 311a of the upper clamp 311 of the first fixing means 310 so that the two pipes are lowered. (1 ') will be clamped at the same time. When the clamping is completed, the chamfering tools 333 and 343 of the first and second chamfering units 330 and 340 on the left and right sides of the primary chamfering device 300 start to rotate, and the first and second chamfering tools are rotated. The second transfer units 350 and 360 are advanced to both ends of the pipe 1 ′. Since the conveying units 350 and 360 are conveyed at a constant pressure by the hydraulic cylinders 351 and 361, the conveying units 350 and 360 can give a constant cutting depth to both ends of the pipe 1 '. When the first and second transfer units 350 and 360 move forward after the predetermined distance, the chamfering processing at both ends of the pipe 1 'is completed.

When the chamfering process is completed in the primary chamfering device 300, the upper clamp 311 of the first fixing means 310 is raised while the transfer unit 600 is also raised at the same time. The upper clamp 311 rises as the rod of the pneumatic cylinder 311a moves backward, and the transfer unit 600 rises by the hydraulic cylinder 633 and the lifting cam 635 of the lifting unit 630. When the transfer unit 600 ascends, the pipe 1 'of the chamfering process is inserted into the fixing block 615 of the pipe storage part 610 to the upper side of the lower fixing block 313 of the first fixing means 310. Will be lifted. Since the transfer unit 620 is driven while the transfer unit 600 is raised to transfer the feed plate 611 of the pipe storage unit 610 by one pitch, the primary chamfered pipe 1 ′ is the axis expansion pipe 200. Are conveyed up to). In this state, when the hydraulic cylinder 633 of the lifting unit 630 of the transfer unit 600 operates to lower the transfer unit 600, the pipe 1 ′ is the lower fixing block 413 of the second fixing means 410. It is seated on). The transfer unit 600 automatically moves backward by one pitch when the lowering is completed.

When the pipe 1 'is placed on the lower fixing block 413 of the second fixing means 410, the upper clamp 411 of the second fixing means 410 is lowered to fix the pipe 1', and this clamp By the completion signal, the shaft pipe unit 430 and the shaft pipe die 431 and the expansion pipe 451 of the expansion pipe unit 450 provided at both ends of the pipe 1 'are advanced. Since the shaft tube die 431 and the expansion tube 451 are advanced by the hydraulic cylinders 433 and 453, the shaft tube die 431 and the expansion tube die 451 can exert sufficient force to deform the end shape of the pipe 1 '. The tube and expansion dies 431 and 451 move backward when they move forward by the set distance.

When the reverse is completed, the upper clamp 411 of the second fixing means 410 ascends and the transfer unit 600 starts to rise, and the fixed block 1 'of the pipe storage portion of the pipe storage unit of the transfer unit is completed. 615 is inserted. When the ascending of the transfer unit 600 is completed, the transfer unit 620 is driven to move the transfer plate 611 back one pitch. When the pipe 1 'is brought to the position of the secondary chamfering device 500 by the advancement of the transfer plate 611, the pneumatic cylinder 561 of the chamfering stopper 562 operates to fix the pipe 1'. Push 556 to align the machining position of the pipe 1 '. After the alignment is completed, the conveying plate 611 is lowered by the hydraulic cylinder 633 of the lifting unit 630 of the transfer unit 600, so that the pipe 1 'is lower fixing block 513 of the third fixing means 510. It is enshrined above. At this time, the upper clamp 511 of the third fixing means 510 is simultaneously lowered to fix the pipe 1 ′. When the fixing of the pipe 1 ′ is completed, the third chamfering unit 530 advances toward the expansion end of the pipe 1 ′ by the third transfer unit 550. Since the third chamfering unit 530 rotates the chamfering tool 531 at the same time as the advance, the chamfering processing of the expansion portion is also completed at the same time when the transfer is completed by the set distance. When the secondary chamfering is completed, the upper clamp 511 of the third fixing means 510 is raised, and at the same time, the transfer unit 600 is raised to transfer the finished pipe 1 'to the fixed block of the transfer plate 611. 615 is inserted.

When the ascending of the transfer unit 600 is completed, the pipe transfer unit 610 of the transfer unit is driven so that the transfer plate 611 is transferred one pitch, and then descends again. When the transfer unit 600 descends, the pipe 1 ′ inserted into the fixed block 615 of the transfer plate falls to the pipe loading box 703 by the guide bar 701 of the unloading part 700.

In the above, the operation relationship in which the two pipes are processed independently in each device has been described, but in practice, the operation described above occurs in each device at the same time. Therefore, each time the transfer unit 600 advances and descends, two processed pipes 1 'are loaded into the pipe stacking box 703 of the unloading part 700. The operation of each device is controlled by the controller 800 and sensors (not shown) attached to each device.

The second embodiment of the telescopic pipe processing system according to the present invention configures the system so that one raw material pipe is drawn at a time and only one pipe is processed in each apparatus. 9 is a plan view showing a telescopic pipe processing system according to a second embodiment. Applicable when the production of pipes is not high.

The telescopic pipe processing system according to the second embodiment includes the kicker 100 ', the cutting device 200', the primary chamfering device 300 ', the shaft expansion device 400', and the secondary chamfering device 500 '. And a transfer unit 600 ', an unloading portion 700 and a controller 800', the configuration is the same as in the first embodiment. The only difference is that the component units of each unit are capable of processing one pipe. Therefore, the description of the configuration and operation of each device is omitted.

As described above, according to the telescopic pipe processing system and processing method according to the present invention, each processing process of the telescopic pipe is automated to improve productivity, and to produce a telescopic pipe which can process a high quality and uniform quality telescopic pipe. It is possible to provide a system and a processing method.

Claims (5)

A kicker for loading a plurality of material pipes and separating a plurality of the material pipes and supplying them in the longitudinal direction; A plurality of cutting devices for cutting the respective material pipes drawn from the kicker to a set length; A plurality of primary chamfering devices for chamfering both ends of each pipe cut by the plurality of cutting devices; A plurality of shaft expansion apparatuses respectively configured for shaft pipe processing and expansion pipe processing for both ends of the respective pipes processed by the plurality of primary chamfering devices; A plurality of secondary chamfering devices for chamfering the expansion ends of the respective pipes which are expanded with the shaft pipes in the plurality of shaft expansion pipes; A transfer unit for moving a plurality of pipes in which unit processing is completed in each device to a next device of each device; Telescopic pipe processing system comprising a; controller for controlling each device. According to claim 1, The axis expansion device, Second fixing means for holding and fixing a central portion of the pipe; A shaft pipe die installed at one end of the pipe to be aligned with the center of the pipe and movable in the longitudinal direction of the pipe; An expansion pipe die installed to be movable in a position opposite to the shaft pipe die; And And two hydraulic cylinders for moving the shaft pipe die and the expansion pipe die in the longitudinal direction, respectively. The method of claim 1, wherein the kicker, A stocker on which the material pipe is loaded; A pipe loading unit separating and loading the plurality of material pipes from the stocker; A pipe conveying part for introducing the plurality of raw material pipes loaded by the pipe loading part into the cutting device; Telescopic pipe processing system comprising a; dustproof device for supporting the rotation of the material pipe. The method of claim 3, wherein the pipe loading unit, A plurality of pipe separation units comprising an inclined bracket and a loading cylinder; And a guide bracket for guiding a plurality of material pipes separated and raised by the pipe separation unit to a pipe transfer part corresponding to the pipe transfer part. 2. A kicker for loading a plurality of material pipes and separating the loaded material pipes one by one and feeding them in the longitudinal direction; A cutting device for cutting the material pipe drawn from the kicker to a predetermined length; Primary chamfering device for chamfering both ends of the pipe cut in the cutting device; An axial expansion device configured to simultaneously perform shaft pipe processing and expansion pipe processing on both ends of the pipe processed by the primary chamfering device; A secondary chamfering device for chamfering the expansion end of the pipe which is expanded with the shaft pipe in the shaft expansion pipe device; A transfer unit for moving the pipes in which the unit processing is completed in each device to a next device of each device; Telescopic pipe processing system comprising a; controller for controlling each device.