KR20230083744A - Shaft warp correction device - Google Patents

Abstract

The present invention conveys means 100; spinal means 200; Warpage detection means 300; Warpage correction means 400; control unit 500; It relates to a shaft deflection corrector comprising a hole detecting means 600, which avoids the stress concentration applied to the hole of the shaft during the correction work, thereby significantly reducing the problem of damage to the shaft during the correction work The failure rate can be minimized.

Description

Shaft warp correction device {Shaft warp correction device}

The present invention relates to a shaft deflection corrector capable of easily correcting shaft deflection.

As is well known, a camshaft for an engine of a vehicle has a plurality of cams formed at different positions at predetermined intervals on a shaft, and the engine operates as valves of the engine open and close according to rotation of the camshaft.

A camshaft for an engine having the above function is manufactured from a casting having excellent hardness. First, the camshaft is first molded into a larger-than-life casting and then manufactured by secondary turning. There is a lot of margin and it is processed by machining the center of the camshaft, so there is no need to calibrate the center of the camshaft separately.

However, in the case of castings, there are excellent advantages in formability and unit cost, but productivity and precision are greatly reduced because larger castings are cast and then turned, and castings are heavy, so they cannot contribute to weight reduction of vehicles, and manufacturing costs are has the disadvantage of being high.

In order to solve the above disadvantages, recently, a camshaft has been manufactured by a method of separately manufacturing, assembling, and joining a shaft and a cam. Specifically, the cam is manufactured by powder sintering or forging, and the shaft is manufactured in a pipe shape. It is lightweight and secures rigidity through heat treatment. The cam and the shaft manufactured in this way are assembled and bonded to complete the production of the camshaft.

As described above, deformation (bending) of the camshaft occurs during the heat treatment of the shaft, and this deformation (bending) of the camshaft can be corrected through a shaft bending corrector.

9 is a view showing a general shaft, FIGS. 10 to 11 are views for explaining a process of straightening a shaft using a conventional shaft deflection corrector, and FIG. 12 is a view for explaining problems in shaft straightening, With reference to this, a conventional shaft deflection corrector and a correction process will be described.

In general, the shaft (S) is provided with a hole (H) into which a pin (not shown) for fixing a cam (not shown) is inserted, and such a shaft (S) is sequentially moved by the conveying means (100).

At this time, the shaft S supplied to the transfer means 100 is supplied in an aligned state by a supply unit (not shown) installed at one end (inlet) of the straightener body, and is supplied to the other end (outlet) of the straightener body by a conveyor ( (not shown) is installed to discharge the shaft (S) where no bending or cracking occurs.

As shown in FIG. 10, a pair of supports 280 capable of supporting both ends of the shaft S are installed based on the transport means 100 for transporting the shaft S, and a pair of A driving and rotation sensing device 290 for rotating the shaft S to the upper side of the support 280 is disposed to be movable.

Here, the driving and rotation sensing device 290 includes a driving roller 291 that faces the shaft S and rotates the shaft S, and a driven roller that faces the shaft S and rotates by the shaft S. 291', a roller lifting unit 292 that lifts the drive roller 291 and the driven roller 291', a drive motor 293 that rotates the drive roller 291, and the driven roller 291' It consists of an encoder 294 that senses the rotation of

The shaft (S) having the hole (H) seated on the support (280) is rotated by the driving and rotation detection device (230), and in the process of being rotated in this way, the bending detecting means (300) detects the bent of the shaft (S). Allow status to be verified.

The warpage detection means 300 is composed of a warpage detection unit and a warpage detection rod, and the warpage detection rod is installed so as to be supported by a spring to maintain a state in close contact with the outer circumferential surface of the rotating shaft S, and this warpage detection means Since 300 is a technology that is already widely known in the relevant field, a detailed description thereof will be omitted.

When the warpage of the shaft (S) is detected through the warpage detecting means (300), the warpage correction means (400) installed in the straightener body is operated to correct the warped part of the shaft (S).

As shown in FIG. 10, the warpage correcting means 400 is configured to be installed and moved upward, downward, left, and right on the upper side where the shaft S is disposed.

In this bending correction unit 400, a horizontal reciprocating unit 430 is installed in the longitudinal direction of the shaft S, and a third lifting unit ( 420) is installed, and a correction punch 410 for pressurizing and correcting the shaft S is installed in the third lifting unit 420.

On the other hand, the above-mentioned transfer means 100, drive and rotation detection device 290, warpage detection means 300, warpage correction means 400, etc. are individually controlled by the control unit 500 to move the shaft S is inserted and discharged, and the bending of the shaft (S) is detected and corrected.

A process of calibrating the shaft (S) using such a conventional straightener will be described as follows.

First, both ends of the shaft S introduced by the transfer means 100 are rotatably disposed on the support 280 .

When the shaft (S) is disposed in this way, the pair of driving and rotation sensing devices 230 are lowered under the control of the controller 500, driving rollers 291 and driven rollers 291' on the outer circumferential surfaces of both ends of the shaft (S). are rotatably butted with each other.

And the shaft (S) has a warp detecting means 300 is disposed to prepare to detect the warp of the shaft (S).

In the above-arranged state, the control unit 500 controls the operation of the drive motor 293, and the drive motor 293 rotates the drive roller 291 to rotate the shaft S in place based on the shaft center The driven roller 291' is rotated by the rotation of the shaft S, and the rotation of the driven roller 291' is detected by the encoder 294 and output to the control unit 500.

In addition, while the shaft (S) rotates, the bending detection means 300 detects the bending of the shaft (S) and outputs it to the controller 500, and the detected portion can be known through the encoder 294.

On the other hand, when the detection of the bending of the shaft (S) by the bending detecting means 300 is completed, the controller 500 rotates the shaft (S) based on the value measured by the bending detecting means 300 and the encoder 294 While doing so, the warpage correcting means 400 is operated and controlled.

The bending correction means 400 operated by the control unit 500 presses the shaft S as the correction punch 410 is lowered by the third lifting unit 420, and as a result, the shaft S undergoes plastic deformation. is corrected as

And when the calibration of the shaft (S) is completed, it is discharged to the outside through the transfer means (100).

The conventional straightener as described above had the following serious problems, which will be described in detail with reference to FIGS. 11 and 12.

As mentioned above, the shaft (S) is formed with a hole (H) for pin (or screw) coupling with the cam, the pressing direction (F) of the calibration punch 410 and the hole ( When the calibration work is performed in a state where H) is arranged on the same line, as shown in FIG. 12, a compressive stress is applied to the hole H disposed above the shaft S, and the shaft ( Tensile stress is applied to the hole H arranged on the lower side based on S).

In particular, due to the concentration of stress acting on the shaft (S), the shaft (S) is damaged or cracked, and even in a normal operating environment, the shaft with fine cracks is not detected as defective and is put into the engine and delivered to the customer. There was a serious problem that the shaft was damaged in the process of driving the car.

1. Republic of Korea Patent No. 10-2107980 2. Republic of Korea Patent No. 10-1821922 3. Korean Patent Publication No. 10-2010-0011071

The present invention has been made to solve the above problems, and avoids the concentration of stress applied to the hole of the shaft during the correction work, thereby significantly lowering the problem of damage or cracking of the shaft during the correction work, thereby minimizing the defect rate. Its purpose is to provide a shaft deflection corrector.

The present invention for achieving the above object,

Transfer means for transporting the shaft having a hole formed on its outer circumferential surface to a calibration position, and transporting and discharging the shaft when calibration is completed; a chuck means disposed at the calibration position to detect rotation of the shaft while fixing and rotating the shaft); deflection detecting means for detecting a bent portion of the shaft rotated against the shaft; a bending correction unit equipped with a correction punch disposed above the shaft to be movable up and down and left and right and correcting the bent portion of the shaft by pressing it in a straight line; Receives the rotation detection signal and detection signal of the shaft from the chuck unit and the bending detecting unit, respectively, compares them with the preset values, detects the pressing position, and controls the bending correction unit so that the bending of the shaft is corrected by the pressurization of the calibration punch In the shaft bending corrector composed of; control unit,

A hole detecting means for detecting a hole of the rotating shaft is further provided with reinforcement;

When the control unit compares the detection signal input from the hole detecting means with a preset value and determines that a hole in the shaft exists at the pressing position of the calibration punch and the axial direction of the hole is the same as the pressing direction of the calibration punch, the chuck means It is characterized in that the pressure correction of the shaft by the correction punch is performed in a state in which the shaft is rotated so that the pressing direction of the correction punch and the axial direction of the hole are misaligned with each other by controlling the operation.

The present invention has the advantage of minimizing the defect rate by significantly reducing the problem of damage to the shaft during the calibration work by avoiding the stress concentration applied to the hole of the shaft during the calibration work.

1 is a schematic view of a shaft deflection corrector according to the present invention viewed from the front;
Figure 2 is a left side view showing a part separately extracted from the shaft bending corrector according to the present invention.
3 to 5 are views for explaining the shaft calibration process of the shaft deflection corrector according to the present invention.
6 is a view showing another embodiment of the spinal unit in the shaft bending corrector according to the present invention.
7 is a view showing another embodiment of the spinal unit in the shaft bending corrector according to the present invention.
Figure 8 is a front view showing a defect removal means separately extracted from the shaft bending corrector according to the present invention.
9 is a view showing a general shaft;
10 to 11 are views for explaining a process of correcting a shaft using a conventional shaft deflection corrector.
12 is a view for explaining a problem of shaft calibration;

Hereinafter, it will be described in detail based on the accompanying drawings.

1 is a schematic view of the shaft bending corrector according to the present invention as seen from the front, Figure 2 is a left side view showing a part separately extracted from the shaft bending corrector according to the present invention, Figures 3 to 5 are shaft bending according to the present invention It is a drawing for explaining the shaft calibration process of the straightener.

1 to 5, the shaft bending corrector according to an embodiment includes a conveying means 100, a chuck means 200, a bending detection means 300, a bending correction means 400, a controller 500, and a hole. Consisting of the sensing means 600, according to this, the stress concentration applied to the hole H of the shaft S is avoided during the calibration work, thereby significantly reducing the problem of breakage of the shaft S during the calibration work, thereby minimizing the defect rate There are technical features that can be done.

The transfer means 100 is operated by the control unit 500 to transfer the shaft S having the hole H to the calibration position CP, and to transfer the calibrated shaft S to the next subsequent process. As a known device, such a transfer means 100 is already a well-known technology in the corresponding field (see Korean Patent Registration Nos. 10-2107980 and 10-1821922), so a detailed description thereof will be omitted.

The chuck means 200 is composed of a fixed support 210, an idling device 220, and a driving and rotation sensing device 230 to form a pair. It serves to detect the rotation of the shaft (S) while fixing and rotating S).

The fixed support 210 is installed with the shaft S being transported (X-axis direction), that is, the calibration position CP, interposed therebetween, and more specifically, facing each other with the transfer means 100 interposed therebetween. It is disposed in the Y-axis direction to receive the shaft (S) from the transfer means 100 and plays a role in supporting both ends of the shaft (S).

The idling device 220 is composed of a pair of idlers 221 and a first lifting unit 222, and in the present embodiment, the idling device 220 faces each other with a fixed support 210 interposed therebetween with respect to the transfer means 100. It is arranged to serve to elevate the shaft (S).

If necessary, the idling device 220 may be disposed between the fixed supports 210.

The pair of idlers 221 are disposed to face each other with respect to the fixed support 210 and rotatably butt against the outer circumferential surface of the end of the shaft S.

The first lifting unit 222 is a known hydraulic, pneumatic, or mechanical lift mechanism that lifts a pair of idlers 221 .

For example, both ends of the shaft S transferred to the correction position CP by the transfer means 100 are placed on the fixed support 210, and then the shaft S is rotated to detect the bending of the shaft S. If you want to do it, the idler 221 is raised by the first lifting unit 222, and in this process, both ends of the shaft (S) are separated from the support 20 and rise naturally on the idler 221 do. And when the shaft (S) is to be corrected, the idler 221 is lowered by the first lifting unit 222, and in this process, both ends of the shaft (S) are separated from the idler 221 and the fixed support 210 ) is naturally placed on the

The driving and rotation sensing device 230 is composed of a driving roller 231, a driven roller 231', a second lifting unit 232, a driving motor 233, and an encoder 234, and in the case of the present embodiment, a shaft It is disposed on the upper part of the idling device 220 located below both ends of (S) and presses the shaft (S) to fix and rotate it, while sensing the rotation of the shaft (S).

The driving roller 231 faces the outer circumferential surface of one end of the shaft S mounted on a pair of idlers 221 to press and fix the shaft S while rotating it.

The driven roller 231' is rotated by the shaft S while facing the outer circumferential surface of the other end of the shaft S mounted on the pair of idlers 221 to press and fix the shaft S.

The second elevating unit 232 is a known hydraulic, pneumatic, or mechanical lift mechanism that elevates the drive roller 231 and the driven roller 231' in a conventional manner (lift, rotation, etc.).

The drive motor 233 serves to rotate the drive roller 231 and is controlled by the control unit 500 .

The encoder 234 serves to sense the rotation of the driven roller 231' rotated by the shaft S and outputs it to the control unit 500. For reference, the control unit 500 receives input from the encoder 234. The rotation angle of the shaft (S) can be set through the detection signal.

The warpage detection means 300 is disposed between the fixed supports 210, and the shaft S is bent against the outer circumferential surface of the shaft S in the process of rotating the shaft S about its axis. It serves to detect the part and output it to the control unit 500.

This warpage detection means 300 is a known measuring sensor, and since it is already a widely known technology in the corresponding field (Korean Patent Registration No. 10-2107980, Korean Patent Registration No. 10-1821922), a detailed description thereof will be omitted. do.

For reference, the control unit 500 receives a rotation detection signal (rotation angle) of the shaft S from the encoder 234, and receives information about the bent portion of the shaft S from the bending detection means 300. .

Therefore, the control unit 500 calculates the bent portion of the shaft S based on the values input from the warpage detecting means 300 and the encoder 234, and through this, it is possible to specify the pressing position.

The warpage correction means 400 is a type of press equipment composed of a correction punch 410, a third lifting unit 420, and a horizontal reciprocating movement unit 430. In this embodiment, warpage detection means to be moved up and down and left and right It is disposed above the 300 and is operated by the control unit 500 to press and straighten the bent portion of the shaft S to correct it.

The correction punch 410 serves to straighten the shaft S by pressing the shaft S vertically.

The third lifting unit 420 is a hydraulic, pneumatic, or mechanical equipment that lifts the correction punch 410 .

The horizontal reciprocating movement unit 430 serves to move the third lifting unit 420 along the longitudinal direction of the shaft S.

If necessary, the third lift unit 420 and the horizontal reciprocating movement unit 430 may be manufactured as an integrated structure.

The hole detecting means 600 serves to detect the hole H of the shaft S and output it to the controller 500.

For example, the hole detecting means 600 may be a photographing device that outputs a photographed image (still image or video), or may be an ultrasonic sensor capable of identifying a hole H through sound waves. A variety of means can be applied.

In this embodiment, an easy-to-handle photographing device is applied, and the photographing device is disposed below the shaft S in a direction orthogonal to the shaft S to be photographed and output to the control unit 500.

On the other hand, the installation position of the photographing equipment of the present invention can be changed as needed.

The controller 500 is a normal controller, receives signals from the drive and rotation detection device 230, the warp detection means 300, and the hole detection means 600, and the transfer means 100, the idling device 220, It serves to individually control the operation of the driving and rotation sensing device 230 and the bending correction means 400, respectively.

For example, the control unit 500 receives a rotation detection signal (rotation angle) of the shaft S from the encoder 234, receives information about the bent portion of the shaft S from the bending detection means 300, By matching them with each other, the bent part of the shaft (S) and the pressing position are accurately detected, based on this, the shaft (S) is rotated, and then the shaft (S) is pressed through the bending correction means 400 to control the motion so that it is corrected. play a role

On the other hand, the controller 500 receives a detection signal (eg, a photographed image) from the hole detecting means 600 before correcting the shaft S through the warpage correcting means 400 as described above, and returns a preset value. Compared with each other, the hole (H) of the shaft (S) exists at the pressing position of the calibration punch 410, and the axial direction of the hole (H) is the same as the pressing direction of the calibration punch 410 (same or a certain range included) will be determined.

If, as shown in FIG. 5 (a), if the pressing direction of the correction punch 410 and the axial direction of the hole H of the shaft S are misaligned, the correction work using the correction punch 410 is performed. However, as shown in FIG. 5 (b), when it is determined that the axial direction of the hole H is disposed at the same position as the pressing direction of the calibration punch 410, the drive motor of the drive and rotation detection device 230 233 is operated to rotate the shaft S by an angle of θ based on the shaft center so that the pressing direction of the calibration punch 410 and the hole H of the shaft S are offset from each other, and then the calibration punch ( The control unit 500 controls the operation so that the shaft (S) is corrected by 410).

The reason for doing the above is to avoid the concentration of stress applied to the hole (H) of the shaft (S) during the calibration work, thereby significantly reducing the problem of breakage (crack) of the shaft (S) during the calibration work. To minimize the defect rate is in

On the other hand, the meaning that the axial direction of the hole H and the pressing direction of the calibration punch 410 are the same position does not mean that they are exactly matched, but also means that they include all approximate or similar ranges, and the range is It can be arbitrarily set according to working conditions.

6 relates to a view showing another embodiment of the spinal unit in the shaft bending corrector according to the present invention, which will be described with reference to this.

First, the chuck means 200 of this embodiment is composed of a support device 240, a rotational support 250, and a driving and rotation sensing device 260. Since it is generally the same as the rotation detection device 230, a description thereof will be omitted.

The support device 240 is a support 241 installed on the path along which the shaft S is transported, that is, at the correction position CP to support both ends of the shaft S, and a support lifting unit that lifts the support 241. (242).

The rotatable supports 250 are arranged to face each other with respect to the support 241 and are disposed to face each other, and rotatably butt against the end of the shaft S to support the shaft S.

For example, the shaft S transferred to the correcting position CP by the transfer means 100 is supported by the support 241 and rotates the shaft S to detect the bending of the shaft S. In this case, the support 241 is lowered by the support lifting unit 242, and in this process, both ends of the shaft S are rotatably placed on the rotary support 250.

In addition, when the shaft (S) is to be corrected, the support 241 is raised by the support lifting unit 242, and in this process, the shaft (S) resting on the rotary support 250 is placed on the support 241. rises as it rises

7 is a view showing another embodiment of the spinal unit in the shaft bending corrector according to the present invention, which will be described with reference to this.

First, in the chuck unit 200 of this embodiment, the transfer unit 100 supports the shaft S transferred to the correction position CP, and the structure and operation method of the driving and rotation sensing device 270 are advanced. It is different from the embodiment.

Then, the driving and rotation sensing device 270 will be described.

The driving and rotation sensing device 270 is composed of a driving spindle 271, a driven spindle 271', a moving block 272, a moving cylinder 273, a driving motor 274 and an encoder 275, In the case of the embodiment, it is installed facing each other with the transfer means 100 interposed therebetween, and serves to sense the rotation of the shaft S while fixing and rotating the shaft S transferred to the calibration position CP.

The drive spindle 271 and the driven spindle 271' are cone-shaped members, and in the present embodiment, they are disposed to face each other with the transport means 100 interposed therebetween, and both ends of the shaft S are pressed and fixed.

These drive spindles 271 and driven spindles 271' are rotatably installed on moving blocks 272 reciprocating in the longitudinal direction of the shaft S, respectively.

And the moving block 272 is reciprocated by the moving cylinder 273, whereby the drive spindle 271 and the driven spindle 271' come into close contact with both ends of the shaft S or both ends of the shaft S. distanced from

The drive spindle 271 is rotated by the drive motor 274 to rotate the shaft S, and the driven spindle 271' rotates together with the shaft S in a state of close contact with the shaft S. .

Meanwhile, the rotation of the driven spindle 271' is detected by the encoder 275 and output to the control unit 500.

Since the structure and operation as described above are already well-known technologies in the corresponding field (Republic of Korea Patent Registration No. 10-2107980, Republic of Korea Patent Registration No. 10-1821922), please refer to the corresponding publications for a detailed description thereof.

On the other hand, the shaft (S) is often damaged in the process of straightening the shaft (S), and it is not easy for the operator to recognize such damage due to ambient noise.

In particular, when the defective shaft is not detected and is put into the engine and delivered to the customer, a serious problem may occur in that the shaft is damaged during driving of the vehicle.

In this embodiment, please pay attention to the fact that the correction punch 410 is further reinforced with the acoustic emission sensor 700 to solve the above problem.

The acoustic emission sensors (700: Acoustic Emission Sensors) are installed in the calibration punch 410 to detect a crack generation sound when a crack occurs in the shaft S and output an acoustic signal to the control unit 500.

In addition, the controller 500 receives a sound signal from the sound emission sensor 700 and compares it with a preset value to determine whether or not the shaft S is cracked.

In this way, since damage to the shaft (S) can be detected and filtered out using the sound emission sensor 700 and the control unit 500, reliability of the product can be greatly improved.

On the other hand, as in the above embodiment, it is also possible to detect defects in the shaft (S) by using the crack sound generated when the shaft (S) is damaged, and in addition, the value detected by the warpage detection means (300) If it exceeds a preset value in , the control unit 500 may determine that the product is defective without undergoing correction work.

On the other hand, if the shaft (S) that has been judged as defective as described above occurs during the process, the operator may grab the shaft (S) and pull it out, but it is safe in that the hand may get caught in the mechanical equipment. have a problem with

Accordingly, in the case of the present embodiment, please pay attention to the fact that the above problem is solved by further reinforcing the defect removal means 800 that automatically discharges the defective shaft S when it is generated.

8 is a front view showing a defect removal means separately extracted from the shaft deflection corrector according to the present invention, which will be described with reference to this.

The defect removal means 800 is composed of a lifter 810 and a cradle 820. In the present embodiment, the shaft S is installed on the transfer means 100 and is controlled by the control unit 500 to be judged as defective. ) plays a role in automatically discharging.

The lifter 810 is composed of a lifting rod 811 and a rod lifting unit 812.

The elevating rods 811 are spaced apart from each other in a direction perpendicular to the direction in which the shaft S is transported, and serve to respectively support both ends of the defective shaft S'.

The rod elevating unit 812 is a known lift mechanism of a hydraulic, pneumatic, or mechanical type that elevates the elevating rod 811 .

The cradle 820 is composed of a shelf 821 and a hinge plate 822.

The shelf 821 is disposed obliquely above the conveying means 100 and serves to store the defective shaft S' that has been raised and lowered via the lifter 810.

The hinge plate 822 is rotatably installed at the front end of the shelf 821 and is folded while the defective shaft S' rises, and when the defective shaft S' descends, the defective shaft S' It unfolds naturally so that it can be placed on top of it.

For reference, a protrusion 821a is integrally formed on the shelf 821, and a hooking portion 822a extending toward the protrusion 821a and engaging the protrusion 821a is integrally formed on the hinge plate 822. .

For example, the hinge plate 822 is horizontally spread in a state in which the hooking portion 822a is caught on the protrusion 821a of the shelf 821, and the defective shaft S' passes through the unfolded hinge plate 822. In the process, the hinge plate 822 is naturally rotated and folded, and when the defective shaft S' passes completely, the hinge plate 822 is rotated and maintained in an unfolded state.

Conversely, when the defective shaft S' descends, the hinge plate 822 is not folded while passing through the hinge plate 822, so the defective shaft S' is placed on top of the hinge plate 822, The defective shaft S' placed in this way is naturally guided to the shelf 821 according to the inclination of the hinge plate 822.

The present invention is convenient in that it can be safely collected and disposed of through the defect removal means 800 without stopping operation when the defective shaft S' occurs as described above, and the operator can directly remove the defective shaft S'. Since there is no need to proceed with the removal work, there is an advantage that can greatly improve the safety problem.

Subsequently, in the present invention, the auxiliary support means 900 for supporting and supporting the middle of the shaft (S) in the above configuration is further provided with reinforcement.

The auxiliary support means 900 is composed of a support die 910 and a support die lifting unit 920, where the support die 910 serves to support the middle of the shaft S, and the support die lifts and lowers. The unit 920 serves to elevate the support die 910 .

Although the present invention has been described in detail only for the specific embodiments described, it is natural for those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention, and it is natural that such changes and modifications fall within the scope of the appended claims.

100: transfer means 110: cradle 120: transfer stand
200: spinal unit 210: fixed support 220: idling device
221: idler 222: first lifting unit
230,260,270: drive and rotation detection device 231: drive roller
231 ': driven roller 232: second lifting unit 233: drive motor
234: encoder 240: support device 241: support
242: support lifting unit 250: rotary support 271: drive spindle
271 ': driven spindle 272: moving block 273: moving cylinder
274: drive motor 275: encoder 300: warp detection means
400: bending correction means 410: correction punch 420: third lifting unit
430: horizontal reciprocating unit 500: control unit 600: hole detection means
700: sound emission sensor 800: defect removal means 810: lifter
811: lifting rod 812: rod lifting unit 820: holder
821: shelf 821a: protrusion 822: hinge plate
822a: hanging part 900: auxiliary support means 910: support die
920: support die lifting unit

Claims (4)

Transfer means (100) for transporting the shaft (S) having a hole (H) formed on its outer circumferential surface to the calibration position (CP), and transporting and discharging the shaft (S) when the calibration is completed; a chuck means (200) disposed at the correction position (CP) to sense rotation of the shaft (S) while fixing and rotating the shaft (S); Warpage detection means 300 for detecting a bent portion of the shaft S rotated against the shaft S; A bending correcting means 400 having a correcting punch 410 disposed above the shaft S to be movable up and down and left and right, and correcting the bent portion of the shaft S by pressing it in a straight line; The rotation detection signal and the detection signal of the shaft (S) are received from the chuck unit 200 and the bending detection unit 300, respectively, and the press position is detected by mutual comparison with the preset value, and the pressurization of the calibration punch 410 In the shaft deflection corrector composed of;
The hole detecting means 600 for detecting the hole H of the rotating shaft S is further provided with reinforcement;
The control unit 500 mutually compares the detection signal input from the hole detecting means 600 with a preset value so that the hole H of the shaft S exists at the pressing position of the calibration punch 410, and the hole H ) is determined to be the same as the pressing direction of the calibration punch S, the chuck means 200 is motion-controlled so that the pressing direction of the calibration punch 410 and the axial direction of the hole H are misaligned with each other. A shaft deflection corrector characterized in that: in a state in which S) is rotated, pressure correction of the shaft (S) by the correction punch 410 is performed.
According to claim 1,
The spinal means 200,
A fixed support 210 disposed at the calibration position CP to support both ends of the shaft S,
An idling device 220 composed of an idler 221 rotatably engaged with both ends of the shaft S and a first lifting unit 222 that lifts the shaft S via the idler 221,
A driving roller 231 facing the outer circumferential surface of one end of the shaft S to rotate the shaft S, and a driven roller 231 ′ rotated by the shaft S while facing the outer circumferential surface of the other end of the shaft S, A second lift unit 232 that lifts the drive roller 231 and the driven roller 231' so that the shaft S can be pressurized together with the idler 221, and a drive motor 233 that rotates the drive roller 231 ), composed of a driving and rotation sensing device 230 composed of an encoder 234 for sensing the rotation of the driven roller 231 '; shaft deflection corrector, characterized in that.
According to claim 1,
The spinal means 200,
A support device 240 composed of a first support 241 disposed at the correction position CP to support both ends of the shaft S and a support lifting unit 242 that lifts the first support 241,
A rotational support 250 rotatably facing while supporting both ends of the shaft S,
A drive roller 261 facing the outer circumferential surface of one end of the shaft S to rotate the shaft S, a driven roller 261 ′ rotated by the shaft S while facing the outer circumferential surface of the other end of the shaft S, A second lift unit 262 that lifts the drive roller 261 and the driven roller 261' to pressurize the shaft S together with the idler 221, and a drive motor 263 that rotates the drive roller 261 ), composed of a driving and rotation sensing device 260 composed of an encoder 264 for sensing the rotation of the driven roller 261'; characterized in that the shaft deflection corrector.
According to claim 1,
The spinal means 200,
A driving spindle 271 that rotates the shaft S by facing to press one end of the shaft S, a driven spindle 271 ′ rotated by the shaft S by facing to press the other end of the shaft S, A moving block 272 for reciprocating the driving spindle 271 and the driven spindle 271', a moving cylinder 273 for reciprocating the moving block 272, and a drive motor 274 for rotating the driving spindle 271 , Consisting of a driving and rotation sensing device 270 made of an encoder 275 for sensing rotation of the driven spindle 271 '; Shaft deflection corrector, characterized in that.

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