KR102456741B1 - Manufacturing system of vehicle power transmission shaft - Google Patents

Abstract

The present invention relates to a manufacturing system for a power transmission shaft of a vehicle. The manufacturing system for a power transmission shaft of a vehicle includes an axle device (A) a ball groove forming device (C). The ball groove forming device (C) includes: a base frame (10"); a first fixing block (20") installed on the base frame (10"); a second fixing block (30") installed on the base frame (10") and arranged to be spaced from the first fixing block (20") in a row; a guide bar (40") connecting the first fixing block (20") and the second fixing block (30"); a moving block (50") installed by being penetrated by the guide bar (40"); a mandrel unit (60") installed in the moving block (50"), and communicating with the moving block (50"); a forward and backward moving member (70") moving the moving block (50") forward and backward; a tube support mold (100") installed in the second fixing block (30") and located to correspond to the mandrel unit (60"); a tube support (110") installed between the mandrel unit (60") and the tube support mold (100"); and a tube separating unit (150") installed between the tube support (110") and the first fixing block (20"). Therefore, the manufacturing system for a power transmission shaft of a vehicle has improved functionality and usability.

Description

Power transmission shaft manufacturing system for vehicles {MANUFACTURING SYSTEM OF VEHICLE POWER TRANSMISSION SHAFT}

The present invention relates to a system for manufacturing a power transmission shaft for a vehicle, and more particularly, to a system for manufacturing a power transmission shaft for a vehicle capable of efficiently manufacturing a power transmission shaft used in a vehicle.

In general, in a vehicle, power (engine output) generated from an engine is transmitted to a transmission, and the transmission transmits power to the front or rear wheels using a power transmission shaft.

For this power transmission shaft, a tube (pipe) is mainly used in consideration of strength resistance and lightness.

In particular, the power transmission shaft is manufactured through a shaft pipe operation and a ball groove forming operation, and the ball groove forming operation is made through plastic processing in which a certain external force is applied to a metal material.

A conventional vehicle power transmission shaft manufacturing system includes a reduction die for guiding an elongated hollow body to pass therethrough; a ram for pushing the elongated hollow body axially through the reduction die; an expansion mandrel disposed within the ram; It consists of a means for limiting the axial movement of the ram. And the ram and the extension mandrel are installed movably on the same axis.

Such a vehicle power transmission shaft manufacturing system is disclosed in Korean Patent Registration No. 10-1188576.

However, the power transmission shaft manufacturing system for a vehicle having the above configuration has a problem in that the manufacturing operation of the power transmission shaft is not performed automatically, so that workability is deteriorated and economic costs are high accordingly.

In addition, there is a disadvantage in that it is difficult and inconvenient to separate the hollow body from the expanded mandrel.

This ultimately results in lowering the functionality and usability of the vehicle power transmission shaft manufacturing system.

The present invention has been devised to solve the above problems, and an object to be solved in the present invention is to provide a power transmission shaft manufacturing system for a vehicle that can easily and efficiently implement the manufacturing operation of the power transmission shaft through a series of automatic processes. is to do

In order to solve the above problems, the power transmission shaft manufacturing system for a vehicle according to the present invention is provided with a shaft pipe device (A) and a ball groove forming device (C), and the ball groove forming device (C) includes a base frame (10 "); A first fixing block 20" installed on the base frame 10"; a second fixing block 30 installed on the base frame 10" and spaced apart from the first fixing block 20" in a line "); A guide bar 40" connected between the first and second fixed blocks 20", 30"; a moving block 50" installed through the guide bar 40"; installed in the moving block 50" , a mandrel unit (60") interlocked with the moving block (50"); a forward and backward member 70" for moving the moving block 50" forward and backward; Installed on the second fixing block 30", the tube support mold 100" corresponding to the mandrel unit 60"; provided between the mandrel unit 60" and the tube support mold 100" Tube holder (110"); Its technical feature is that it is configured to include a tube separation unit 150" installed between the tube holder 110" and the first fixing block 20".

Due to the structural characteristics of the power transmission shaft manufacturing system for a vehicle according to the present invention, the manufacturing operation of the power transmission shaft can be implemented simply and efficiently through a series of automatic processes.

In addition, productivity of the power transmission shaft can be improved, and production costs can be reduced.

Accordingly, the functionality and usability of the vehicle power transmission shaft manufacturing system can be further improved.

1 is a configuration diagram of a power transmission shaft manufacturing system for a vehicle according to the present invention;
2 is a configuration diagram showing a shaft pipe device of a power transmission shaft manufacturing system for a vehicle according to the present invention;
3 (a), (b) is a front view and a side view showing the installation state of the rotating body, the shaft tube mold and the restraining member of the shaft pipe device of the power transmission shaft manufacturing system for a vehicle according to the present invention;
4 (a), (b) is an operation state diagram of the restraining member of the shaft pipe device of the power transmission shaft manufacturing system for a vehicle according to the present invention;
Figure 5 (a), (b) is a side view and a plan view showing the tube holder of the shaft tube device of the power transmission shaft manufacturing system for a vehicle according to the present invention,
6 is a block diagram showing a tube processing apparatus of a power transmission shaft manufacturing system for a vehicle according to the present invention;
7 (a), (b) is a front view and a side view showing the installation state of the rotating body, the tube processing mold and the restraining member of the tube processing apparatus of the power transmission shaft manufacturing system for a vehicle according to the present invention;
8 (a), (b) is an operation state diagram of the restraining member of the tube processing apparatus of the vehicle power transmission shaft manufacturing system according to the present invention,
9 (a), (b) is a side view and a plan view showing the tube holder of the tube processing apparatus of the power transmission shaft manufacturing system for a vehicle according to the present invention,
10 is a front view showing a tube separation unit of the tube processing apparatus of the power transmission shaft manufacturing system for a vehicle according to the present invention;
11 (a) and (b) are a front view and a side view partially showing another embodiment of a shaft pipe device and a tube processing device of a power transmission shaft manufacturing system for a vehicle according to the present invention;
12 is a block diagram showing an apparatus for forming a ball groove of a power transmission shaft manufacturing system for a vehicle according to the present invention;
13 (a) and (b) are cross-sectional views showing the structure of the mandrel unit of the ball groove forming apparatus of the power transmission shaft manufacturing system for a vehicle according to the present invention;
14 is a front view showing the tube separation unit of the ball groove forming apparatus of the power transmission shaft manufacturing system for a vehicle according to the present invention.

Hereinafter, a system for manufacturing a power transmission shaft for a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the power transmission shaft manufacturing system for a vehicle according to the present invention is configured to include a shaft pipe device (A), a tube processing device (B), and a ball groove forming device (C).

Of course, between the shaft tube device (A) and the tube processing device (B), the tube processing device (B) and the ball groove forming device (C), a transport robot for automatically transporting the shaft tube/processed tube (T) may be provided. have.

The shaft pipe device (A) is for shafting one side of the tube (T), which is a raw material, to a certain standard.

As shown in Figs. 2 to 5, the axial tube device (A) includes a base frame (10); a first fixing block 20 installed on the base frame 10; a second fixing block 30 installed on the base frame 10; a guide bar 40 connected between the first and second fixing blocks 20 and 30; a moving block 50 installed through the guide bar 40; a tube gripper 60 installed on the moving block 50; a forward and backward member 70 connected to the moving block 50; a rotating body 80 installed on the second fixing block 30; a driving member 90 connected to the rotating body 80; Shaft tube mold 100 installed on the rotating body 80; a tube holder 110 provided between the tube gripper 60 and the shaft tube mold 100; Constraint member 120 provided in the lower part of the shaft tube mold 100; a spacer 130 connected to the rotating body 80; It is configured to include a push member 140 installed on the base frame (10).

The base frame 10 serves to stably support the first and second fixing blocks 20 and 30 and the push member 140 , and the base frame 10 has a metal table structure.

The first and second fixing blocks 20 and 30 have a rectangular shape. It is fixed on the base plate (10). The first and second fixing blocks 20 and 30 are preferably made of a metal material.

And the first and second fixing blocks 20 and 30 are spaced apart from each other in a line with a predetermined interval.

In addition, the second fixed block 30 is provided with a plurality of rotating rollers (R) in rolling contact with the circumferential surface of the rotating body (80) to more stably implement the rotational operation of the rotating body (80). In particular, it is preferable that the plurality of rotating rollers R are detachably coupled to the second fixing block 30 so that the position thereof can be appropriately adjusted according to the size of the rotating body 80 .

The guide bar 40 is for stably guiding the forward/backward operation of the moving block 50 .

These guide bars 40 are made of a metal material having excellent physical properties such as durability, and it is preferable that four are installed in the corners of the first and second fixing blocks 20 and 30 .

The moving block 50 is moved forward and backward along the guide bar 40 , and has a rectangular shape like the first and second fixed blocks 20 and 30 .

And a through hole through which the guide bar 40 passes is formed in the corner of the moving block 50 , and the guide bar 40 that can be generated according to the forward/backward operation of the moving block 50 is formed in the through hole. An anti-friction coating layer capable of preventing friction may be additionally formed.

The moving block 50 is preferably made of a metal material having excellent physical properties.

The tube gripper 60 is interlocked with the moving block 50 to firmly and stably hold the tube T, and a sensor (not shown) for detecting the tube T is provided on one side thereof. have.

The forward and backward member 70 is for moving the moving block 50 forward and backward, and a cylindrical actuator operated by pneumatic or hydraulic pressure is used. As the forward/backward member 70, other known types may be used within a range capable of stably moving the moving block 50 forward and backward.

The rotating body 80 is formed in the form of a circular plate, and is rotatably installed in the second fixing block 30 .

In addition, a sensor S for controlling the rotational operation of the rotating body 80 is provided on the upper portion of the rotating body 80 so that the shaft mold 100 can accurately stop at a position corresponding to the tube gripper 60 . That is, the sensor S is for accurately stopping the shaft tube mold 100 at a desired position when the rotating body 80 rotates.

Of course, the same number of sensors (S) as the shaft tube mold 100 is provided on the circumferential surface of the rotating body (80).

The rotating body 80 is preferably made of a metal material having excellent physical properties.

The driving member 90 serves to rotate the rotating body 80, and receives a signal from the sensor S provided on the rotating body 80 to rotate/stop the rotating body 80. control

On the other hand, as the driving member 90, various types of which can precisely control the rotation of the rotating body 80, such as a motor, can be selectively applied.

A plurality of shaft pipe molds 100 are installed along the circumference of the rotating body 80 with different inner diameters so that the shaft pipe work of the tube T can be continuously performed step by step, and the rotating body rotated by the driving member 90 . (80) is interlocked with the tube gripper (60) and selectively corresponding to the position. Accordingly, the inner diameter of the tube (T) and the axial tube mold 100 are accurately arranged in a straight line.

That is, the shaft tube mold 100 is moved by the rotation of the rotating body 80 to the position corresponding to the tube gripper 60 holding the tube (T).

And the shaft tube mold 100 is detachably coupled to the rotating body 80 to facilitate replacement and maintenance.

The tube holder 110 is for stably mounting the tube (T) during the axial pipe work of the tube (T).

This tube holder 110 includes a support plate portion 112; A pair of mounting portions 114 installed on the support plate portion 112, on which the tube (T) is mounted; a pair of sensing units 116 installed on the support plate 112 and provided with a sensor; It consists of an actuator part 118 installed under the support plate part 112 .

In the support plate part 112, spacing adjustment holes (not shown) are formed at regular intervals so that the installation interval of the mounting parts 114 can be adjusted according to the length of the tube T, and the mounting part 114 is the support plate part. It is selectively bolted to the gap adjustment hole (not shown) formed in the 112 .

The sensing unit 116 operates the forward/backward member 70 by sensing in real time whether or not the tube T is mounted on the mounting unit 114 . And the actuator unit 118 raises and lowers the support plate unit 112, and a cylindrical actuator is used.

The constraining member 120 serves to selectively constrain the shaft pipe mold 100 during the shaft pipe operation of the tube (T). That is, the constraining member 120 constrains the shaft mold 100 so that the rotating body 80 does not rotate due to a malfunction or the like during shaft pipe work of the tube T and stably maintains its position.

The constraining member 120 is installed in the second fixing block 30, the guide portion 122 located in the lower portion of the rotating body (80); Elevating restraint portion 124 which is installed so as to be lifted on the guide portion 122, selectively constraining the shaft tube mold 100; It consists of an actuator unit 126 for lifting and lowering the lifting restraint unit 124 .

The guide part 122 is made up of a pair and is spaced apart from each other at a predetermined interval and spaced apart from each other.

The lifting restraint portion 124 is installed between the guide portions 122 made of a pair, and when the rotating body 80 is fixed, it maintains an elevated state to constrain the shaft tube mold 100 and the rotating body 80 ) to release the restrained state of the shaft mold 100 by maintaining the lowered state during rotation. And the upper end of the lifting restraint portion 124 is formed with a semi-circular restraint groove 123 for restraining a portion of the outer peripheral surface of the shaft tube mold (90).

On the other hand, it is preferable that a cylindrical actuator is used as the actuator unit 126 .

The spacer 130 is installed on the second fixing block 30 , and serves to selectively spaced apart the rotating body 80 with respect to the second fixing block 30 . That is, when the rotating body 80 is rotated through the spacer 130, the rotating body 80 is spaced apart from the second fixed block 30, and when the rotation of the rotating body 80 is completed, the second fixed block The rotating body 80 is again in close contact with the 30 .

Friction with the second fixing block 30 that may be generated during the rotational operation of the rotating body 80 by the spacer 130 as described above can be easily and effectively prevented.

On the other hand, as the spacer 130, it is preferable to use a cylindrical actuator that is installed through the second fixed block (30).

The push member 140 is to assist the axial tube (T) to be withdrawn from the axial tube mold (100).

The push member 140 includes a support 141 installed on the base frame 10; a plurality of guide bars 142 connected between the support 141 and the second fixing block 30; a push block 143 through-coupled to the plurality of guide bars 142; a push bar 144 installed on the push block 143 and interlocked with the push block 143 to push the axial tube (T); It consists of an actuator 145 for moving the push block 143 forward and backward.

The operating state of the shaft tube device of the power transmission shaft manufacturing system for a vehicle described above will be described as follows.

First, when the tube (T) is mounted on the tube holder (110), the tube gripper (60) interlocked with the moving block (50) is moved forward by the operation of the forward and backward member (70) to firmly secure one end of the tube (T). catch it

At this time, the tube gripper 60 grips the tube T and the tube holder 110 is lowered at the same time.

Thereafter, the tube gripper 60 moves forward again toward the axial tube mold 100 to introduce the tube T into the axial tube mold 100, then moves backward again to withdraw the tube T from the axial tube mold 100 and firstly condensed

At this time, the shaft tube mold 100 maintains its outer circumferential surface constrained by the restraining member 120 , and the push member 140 pushes the tube T when withdrawing the tube T from the shaft tube mold 100 . give.

And when the first shaft pipe work of the tube (T) is completed, the constraint state of the shaft pipe mold 100 by the constraining member 120 is released, and then, the rotating body 80 is the second fixed block by the spacing member 130 In a state spaced apart with respect to (30), the rotating body 80 is rotated by the driving member 90 so that the shaft tube mold 100 having a different inner diameter is positioned to correspond to the tube (T). Thereafter, the rotating body 80 is in close contact with the second fixing block 30 by the spacer 130 , and the shaft tube mold 100 is again constrained by the restraining member 120 .

In this state, the secondary shaft pipe work is performed in the same way as the first shaft pipe work described above.

And when the secondary shaft pipe work is completed, the tube holder 110 is raised and the tube T is mounted, and the tube gripper 60 is operated backward after placing the tube T to return to the original position.

On the other hand, according to the shaft pipe range of the tube (T), it is of course possible to perform additional shaft pipe work in the same way as the secondary shaft pipe work.

The tube processing device (B) is disposed between the shaft pipe device (A) and the ball groove forming device (C), and serves to precisely process the tube (T) axially piped through the shaft pipe device (A) once again .

This tube processing apparatus (B), as shown in Figures 6 to 10, the base frame (10'); a first fixing block 20' installed on the base frame 10'; a second fixing block 30' installed on the base frame 10'; a guide bar 40' connected between the first and second fixing blocks 20' and 30'; a moving block 50' that is installed through the guide bar 40'; a mandrel unit 60' installed in the moving block 50'; a forward and backward member 70' connected to the moving block 50'; a rotating body 80' installed on the second fixing block 30'; a driving member (90') connected to the rotating body (80'); A disk-shaped tube processing mold (100') installed on the rotating body (80'); a tube holder 110' provided between the mandrel unit 60' and the tube processing mold 100'; Constraint member 120' provided in the lower portion of the tube processing mold (100'); a spacer member 130' connected to the rotating body 80'; a push member 140' installed on the base frame 10'; It is configured to include a tube separation unit 150' installed between the tube holder 110' and the first fixing block 20'.

The base frame 10' serves to stably support the first and second fixing blocks 20' and 30' and the push member 140', and the base frame 10' is a metal table. made of structure

The first and second fixing blocks 20' and 30' have a rectangular shape. It is fixed on the base plate 10'. The first and second fixing blocks 20' and 30' are preferably made of a metal material.

And the first and second fixing blocks (20', 30') are spaced apart from each other in a line with a predetermined interval.

In addition, the second fixed block 30' is provided with a plurality of rotary rollers (R') in rolling contact with the circumferential surface of the rotating body (80') in order to more stably implement the rotational operation of the rotating body (80'). have. In particular, the plurality of rotating rollers (R') are preferably detachably coupled to the second fixing block (30') so that their positions can be appropriately adjusted according to the size of the rotating body (80').

The guide bar 40' is for stably guiding the forward/backward operation of the moving block 50'.

These guide bars 40' are made of a metal material having excellent physical properties such as durability, and it is preferable that four are installed at the corners of the first and second fixing blocks 20' and 30'.

The moving block 50' is moved forward and backward along the guide bar 40', and has a rectangular shape like the first and second fixed blocks 20' and 30'.

And a through hole through which the guide bar 40' passes is formed in the corner of the moving block 50', and the guide bar ( 40'), an anti-friction coating layer that can prevent friction with the may be additionally formed.

The moving block 50' is preferably made of a metal material having excellent physical properties.

The mandrel unit 60' is interlocked with the moving block 50' and serves to process the axial tube T through the axial pipe device (A). That is, the mandrel unit 60 'is inserted into the tube (T) and inserted into the tube (T) in a state where the tube (T) is inserted into the tube processing mold (100') by being inserted into the tube (T). Repeat processing so that the length of the shaft pipe part and the flesh thickness of the unscrew pipe part become the required dimensions.

On the other hand, as the mandrel unit 60', various known types are selectively applicable.

The forward and backward member 70' is for moving the moving block 50' forward and backward, and a cylinder-type actuator operated by pneumatic or hydraulic pressure is used. As the forward/backward member 70', other known types may be used within a range capable of stably moving the moving block 50' forward and backward.

The rotating body 80' is made in the form of a circular plate, and is rotatably installed on the second fixing block 30'.

And on the upper portion of the rotating body 80', the sensor (S) for controlling the rotational operation of the rotating body 80' so that the tube processing mold 100' can be accurately stopped at a position corresponding to the mandrel unit 60'. ') is provided. That is, the sensor S' is for accurately stopping the tube processing mold 100' at a desired position when the rotating body 80' rotates.

Of course, the same number of sensors (S') as the tube processing mold 100' is provided on the circumferential surface of the rotating body 80'.

The rotating body 80' is preferably made of a metal material having excellent physical properties.

The driving member 90 ′ serves to rotate the rotating body 80 ′, and receives a signal from the sensor S′ provided on the upper portion of the rotating body 80 ′. Controls rotation/stop motion.

On the other hand, as the driving member 90', various types of which can precisely control the rotation of the rotating body 80', such as a motor, can be selectively applied.

A plurality of tube processing molds 100 ′ are installed along the circumference of the rotating body 80 ′ with different inner diameters so that the processing of the tube T can be continuously performed step by step and rotated by the driving member 90 ′. It is interlocked with the rotating body 80' to be selectively positioned corresponding to the mandrel unit 60', and a tube processing hole h2 into which the tube T is inserted and processed is formed in the center, respectively. Accordingly, the inner diameter of the tube (T) and the tube processing mold (100') is arranged in a straight line.

That is, the tube processing mold 100' is moved by the rotation of the rotating body 80' to correspond to the mandrel unit 60'.

And the tube processing mold 100' is detachably coupled to the rotating body 80' for easy replacement and maintenance.

The tube holder 110 ′ is for stably holding the tube T during processing of the tube T.

This tube holder 110' is a support plate portion (112'); A pair of mounting parts 114' installed on the support plate part 112', on which the tube (T) is mounted; a pair of sensing units 116' installed on the support plate 112' and provided with a sensor; It consists of an actuator part 118' installed under the support plate part 112'.

In the support plate part 112', spacing adjustment holes (not shown) are formed at regular intervals so that the installation interval of the mounting parts 114' can be adjusted according to the length of the tube T, and the mounting parts 114' are It is selectively bolted to the gap adjustment hole (not shown) formed in the support plate part 112'.

The sensing unit 116' operates the forward/backward member 70' by sensing in real time whether or not the tube T is mounted on the mounting unit 114'. And the actuator part 118' moves the support plate part 112' up and down, and a cylindrical actuator is used.

The restraining member 120' serves to selectively restrain the tube processing mold 100' during the processing of the tube (T). That is, the constraining member 120 ′ constrains the tube processing mold 100 ′ so that the rotation body 80 ′ does not rotate due to a malfunction or the like during processing of the tube T and stably maintains its position.

The constraining member 120' is installed on the second fixing block 30' and includes a guide portion 122' located at the lower portion of the rotating body 80'; Elevating restraint portion 124' which is installed to be elevating on the guide portion 122', and selectively constrains the tube processing mold 100'; It consists of an actuator part 126' for lifting and lowering the lifting restraint part 124'.

The guide part 122' is made of a pair and is spaced apart from each other at a predetermined interval.

The lifting restraint portion 124' is installed between a pair of guide portions 122', and when the rotating body 80' is fixed, it maintains an elevated state to restrain the tube processing mold 100'. In addition, during rotation of the rotating body 80', the lowered state is maintained to release the constrained state of the tube processing mold 100'. And at the upper end of the lifting restraint portion 124', a semi-circular restraint groove 123' for restraining a portion of the outer peripheral surface of the tube processing mold 100' is formed.

On the other hand, it is preferable that a cylindrical actuator is used as the actuator part 126'.

The spacing member 130' is installed on the second fixing block 30', and serves to selectively spaced apart the rotating body 80' with respect to the second fixing block 30'. That is, when the rotating body 80' is rotated through the spacing member 130', the rotating body 80' is spaced apart from the second fixed block 30', and the rotation of the rotating body 80' is completed. When the second fixing block (30'), the rotating body (80') is in close contact again.

Friction with the second fixing block 30' that may be generated during the rotational operation of the rotating body 80' by the above-described spacer 130' can be easily and effectively prevented.

On the other hand, as the spacer member 130', it is preferable to use a cylindrical actuator installed through the second fixing block 30'.

The push member 140 ′ is to assist the axial tube T to be withdrawn from the tube processing mold 100 ′.

The push member 140 ′ includes a support 141 ′ installed on the base frame 10 ′; A plurality of guide bars (142') connected between the support (141') and the second fixing block (30'); a push block 143' that is through-coupled to a plurality of guide bars 142'; It is installed on the push block (143'), the push block (143') and the push bar (144') to push the tube (T) in conjunction with the shaft; It consists of an actuator 145' for moving the push block 143' forward and backward.

The tube separation unit 150 ′ serves to separate the tube T from the mandrel unit 60 ′.

Such a tube separation unit (120') is a stopper (122'); An actuator 124' provided at the lower portion of the stopper 122', for lifting and lowering the stopper 122'; It consists of a pair of guides 126' provided on both sides of the stopper 122'.

A semi-circular groove-shaped tube stopper 121' is formed at the upper end of the stopper 122', and one end of the tube T is selectively supported. And a cylindrical actuator is used as the actuator 124', and the guide 126' serves to stably guide the lifting operation of the stopper 122'.

The operating state of the tube processing apparatus of the power transmission shaft manufacturing system for a vehicle described above will be described as follows.

First, when the tube T is mounted on the tube holder 110 ′, the mandrel unit 60 ′ interlocked with the moving block 50 ′ moves forward by the operation of the forward and backward member 70 ′. The mandrel unit 60' operated in this way is fitted to the tube T, and at the same time, the tube holder 110' is lowered. Thereafter, the mandrel unit 60 ′ is inserted into the tube T as well as the tube T is introduced into the tube processing mold 100 ′ to process the tube T first.

At this time, the tube processing mold 100 ′ maintains its outer circumferential surface constrained by the restraining member 120 ′, and the push member 140 ′ removes the tube T from the tube processing mold 100 ′. Push the tube (T).

And when the primary processing operation of the tube (T) is completed, the constraint state of the tube processing mold 100' by the restraining member 120' is released, and then, the rotating body 80' by the spacer 130' In a state spaced apart with respect to the second fixing block 30', the rotating body 80' is rotated by the driving member 90', so that the tube processing mold 100' having a different inner diameter is positioned corresponding to the tube (T). do. Thereafter, the rotating body 80 ′ is in close contact with the second fixing block 30 ′ by the spacer 130 ′ and the tube processing mold 100 ′ is again constrained by the constraining member 120 ′.

In this state, the secondary processing operation is performed in the same manner as the primary processing operation described above.

And when the secondary machining operation is completed, the mandrel unit 60' is operated backward to return to the original position.

At this time, the tube holder 110' and the tube separation unit so that the tube T fitted to the mandrel unit 60' can be separated from the mandrel unit 60' and mounted on the tube holder 110'. (120') is raised.

On the other hand, according to the processing range of the tube (T), it is of course possible to perform an additional processing operation in the same way as the secondary processing operation.

11 is a front view partially showing another embodiment of the shaft tube device and the tube processing device of the power transmission shaft manufacturing system for a vehicle according to the present invention.

As shown in the drawing, the slide base 160: a slide 170 coupled to the slide base 160; a plurality of molds 180 installed on the slide 170; It consists of an actuator 190 connected to the slide 170 .

The slide base 160 is made of a rectangular metal material, and the slide 170 is slidably coupled to the slide base 160 . And the mold 180 is arranged in a line at regular intervals on the slide 170 and interlocks with the sliding operation of the slide 170 , and the actuator 190 serves to slide the slide 170 .

And a stopper insertion groove 172 is formed in the slide 170 corresponding to the plurality of molds 180, and is selectively inserted into the stopper insertion groove 172 of the slide 170 at the upper portion of the slide 170. The flow of the slide 170 A stopper 200 is provided to prevent As the stopper 200, a cylinder-type actuator operated forward and backward is used.

On the other hand, the rotating body (80, 80'), the driving member (90, 90'), which are the components of the shaft tube device (A) and the tube processing device (B) of the power transmission shaft manufacturing system for a vehicle described through FIGS. 2 to 10 , A slide base 160, a slide 170, a mold 180, an actuator 190 instead of the shaft tube mold 100 / tube processing mold 100 ', the constraining member 120' and the spacer member 130' Other than that the stopper 200 is used, the technical configuration is the same, so a detailed description thereof will be omitted.

The ball groove forming apparatus (C) is for forming a plurality of ball grooves on the inner surface of the tube (T).

As shown in FIGS. 12 to 14, the ball groove forming apparatus C includes a base frame 10"; a first fixing block 20" installed on the base frame 10"; a base frame ( Installed on 10"), the second fixing block 30" and the first fixing block 20" and spaced apart in a line; A guide bar 40" connected between the first and second fixed blocks 20", 30"; a moving block 50" installed through the guide bar 40"; installed in the moving block 50" , a mandrel unit (60") interlocked with the moving block (50"); a forward and backward member 70" for moving the moving block 50" forward and backward; It is installed in the second fixing block 30", the cylindrical tube support mold 100" corresponding to the mandrel unit 60"; between the mandrel unit 60" and the tube support mold 100'" The tube holder 110" provided; the push member 140" installed on the base frame 10"; the tube separation unit 150 installed between the tube holder 110" and the first fixing block 20" ") is included.

The base frame 10" serves to stably support the first and second fixing blocks 20", 30" and the push member 140", and the base frame 10" is a metal table. made of structure

The first and second fixing blocks 20", 30" have a rectangular shape. It is fixed on the base plate 10". Such first and second fixing blocks 20", 30" are preferably made of a metal material.

And the first and second fixing blocks (20", 30") are spaced apart from each other in a line at a predetermined interval.

In addition, the second fixed block 30" is provided with a plurality of rotating rollers R" which are in rolling contact with the circumferential surface of the rotating body 80" in order to more stably implement the rotational operation of the rotating body 80". have. In particular, it is preferable that the plurality of rotating rollers (R") are detachably coupled to the second fixing block 30" so that their positions can be appropriately adjusted according to the size of the rotating body 80".

The guide bar 40" is for stably guiding the forward/backward motion of the moving block 50".

These guide bars 40" are made of a metal material having excellent physical properties such as durability, and it is preferable that four are installed at the corners of the first and second fixing blocks 20", 30".

The moving block 50" is moved forward and backward along the guide bar 40", and has a rectangular shape like the first and second fixed blocks 20" and 30".

And a through-hole through which the guide bar 40" passes is formed in the corner of the moving block 50", and the guide bar ( 40") and an anti-friction coating layer that can prevent friction may be additionally formed.

The moving block 50 ″ is preferably made of a metal material having excellent physical properties.

The mandrel unit 60" is interlocked with the moving block 50" to insert the tube T processed through the tube processing device B into the tube support mold 100", as well as the ball to the tube T. It serves to form a groove.

The mandrel unit 60" includes a fixed body 62" fixed to the moving block 50"; a fluid 64" movably installed on the fixed body 62"; a fixed body 62"; a buffer member 66 ″ interposed between the fluid bodies 64 ″ to elastically flow the fluid 64 ″ with respect to the fixed body 62 ″; It is coupled to the fluid 64" so as to correspond to the tube support mold 100", and consists of a mandrel 68" having a plurality of protrusions 67" long in the axial direction on the outer circumferential surface at regular intervals. .

As the buffer member 66 ″, a spring or the like capable of buffering may be selectively applied.

And the protrusion 67" of the mandrel 68" is for forming a ball groove in the tube (T).

The forward and backward member 70" is for moving the moving block 50" forward and backward, and a cylinder-type actuator operated by pneumatic or hydraulic pressure is used.

The tube support mold 100" is firmly fixed to the second fixing block 30" so that the ball groove forming operation of the tube T can be smoothly performed, and is positioned to correspond to the mandrel unit 60" in a straight line. , serves to stably support the outer peripheral surface of the tube (T) during the ball groove forming operation on the inner surface of the tube (T) through the mandrel unit (60"). The tube support mold 100 ″ is formed with a tube support hole h1 in the center of which the tube T is inserted and supported.

The tube holder 110 ″ is for stably holding the tube (T) during the ball groove forming operation of the tube (T).

This tube holder 110" is a support plate portion 112"; A pair of mounting units 114 ″ installed on the support plate unit 112 ″, on which the tube (T) is mounted; a pair of sensing units 116" installed on the support plate 112" and provided with a sensor; It consists of an actuator part 118" installed under the support plate part 112".

In the support plate part 112", spacing adjustment holes (not shown) are formed at regular intervals so that the installation interval of the mounting parts 114" can be adjusted according to the length of the tube T, and the mounting parts 114" are It is selectively bolted to the gap adjustment hole (not shown) formed in the support plate portion 112 ″.

The sensing unit 116 ″ operates the forward/backward member 70 ″ by sensing in real time whether or not the tube T is mounted on the mounting unit 114 ″.

The actuator part 118" moves the support plate part 112" up and down, and a cylindrical actuator is used.

The tube separation unit 150" serves to separate the tube T from the mandrel unit 60".

Such a tube separation unit (120 ") is a stopper (122"); An actuator 124" provided at the lower portion of the stopper 122", which lifts and lowers the stopper 122"; consists of a pair of guides 126" provided on both sides of the stopper 122".

A semi-circular groove-shaped tube stopper 121" is formed at the upper end of the stopper 122", and one end of the tube T is selectively supported. And a cylindrical actuator is used as the actuator 124", and the guide 126" serves to stably guide the lifting operation of the stopper 122".

The operating state of the ball groove forming device (C) of the power transmission shaft manufacturing system for a vehicle described above will be described as follows.

First, when the processed tube T is mounted on the tube holder 110", the mandrel unit 60" linked to the moving block 50" is moved forward by the operation of the forward/backward member 70". The mandrel unit 60 ″, which is operated forward in this way, is fitted and coupled to the tube T, and at the same time, the tube holder 110 ″ is lowered.

Thereafter, the mandrel unit 60" introduces the processed tube T into the tube support mold 100" and is inserted into the tube T to form a ball groove on the inner surface of the tube T. It operates backwards and returns to the original position.

At this time, the push member 140" pushes the tube T when withdrawing the tube T from the tube support mold 100", and the tube holder 110" and the tube separation unit 120" are the mandrel units. The tube (T) fitted to the (60″) is separated from the mandrel unit (60″) and raised to be mounted on the tube holder (110″).

10', 10": Base frame 20", 20": 1st fixed block
30'30", : second fixing block 40', 40": guide bar
50', 50" : Moving block 60', 60" : Mandrel unit
62" : fixed body 64" : fluid
66": buffer member 67": protrusion
68": mandrel 70', 70": forward/backward member
80': rotating body 90': driving member
100': Tube processing mold 100": Tube support mold
110', 110" : Tube holder 150', 150" : Tube separation unit
121": tube stopper 122": catcher
124: Actuator A: Shaft pipe device
B : Tube processing device C : Ball groove forming device

Claims (6)

A shaft pipe device (A) for accumulating the tube (T); In the power transmission shaft manufacturing system for a vehicle provided with a ball groove forming device (C) for forming a ball groove in the tube (T) axially piped through the shaft pipe device (A),
The ball groove forming device (C),
Base frame 10"; First fixing block 20" installed on the base frame 10"; Installed on the base frame 10", in line with the first fixing block 20" a second fixing block (30 ") spaced apart from each other; A guide bar 40" connected between the first and second fixed blocks 20" and 30"; a moving block 50" installed through the guide bar 40"; the moving block 50") is installed in the mandrel unit (60") interlocked with the moving block (50"); a forward and backward member 70" for moving the moving block 50" forward and backward; A cylindrical tube support provided in the second fixing block 30" and positioned to correspond to the mandrel unit 60" and having a tube support hole h1 in the center through which the tube T is inserted and supported. a mold 100"; a tube holder 110" provided between the mandrel unit 60" and the tube support mold 100", on which the tube T is mounted; It is installed between the tube holder 110" and the first fixing block 20", and includes a tube separation unit 150" for separating the tube T from the mandrel unit 60". A power transmission shaft manufacturing system for a vehicle, characterized in that it.
The method according to claim 1,
The mandrel unit 60",
a fixture 62" fixed to the moving block 50"; a fluid 64 ″ movably installed on the fixed body 62 ″; a buffer member (66") interposed between the fixed body 62" and the fluid 64" to elastically allow the fluid 64" to flow with respect to the fixed body 62"; Manufacturing a power transmission shaft for a vehicle, characterized in that it is coupled to the fluid 64" so as to correspond to the tube support mold 100", and is composed of a mandrel 68" having a plurality of protrusions 67" formed on the outer circumferential surface. system.
The method according to claim 1,
The tube separation unit 150 ",
A stopper 152" on which one end of the tube (T) is selectively supported by being caught; an actuator 154" that is provided under the stopper 152" and lifts and lowers the stopper 152". A vehicle power transmission shaft manufacturing system.
4. The method according to claim 3,
A power transmission shaft manufacturing system for a vehicle, characterized in that a tube stopper (151") having a semicircular groove shape is formed on the upper end of the stopper (152").
The method according to claim 1,
It is disposed between the shaft pipe device (A) and the ball groove forming device (C), characterized in that it further comprises a tube processing device (B) for processing the tube (T) axially piped through the shaft pipe device (A) A vehicle power transmission shaft manufacturing system.
6. The method of claim 5,
The tube processing device (B),
base frame (10'); a first fixing block 20' installed on the base frame 10'; a second fixing block (30') installed on the base frame (10') and spaced apart from the first fixing block (20') in a line; a guide bar (40') connected between the first and second fixing blocks (20', 30'); a moving block 50' that is installed through the guide bar 40'; a mandrel unit (60') installed on the moving block (50') and interlocked with the moving block (50'); a forward and backward member 70' for moving the moving block 50' forward and backward; a rotating body (80') installed on the second fixing block (30'); a driving member 90' for rotating the rotating body 80'; A plurality of different inner diameters are installed along the circumference of the rotating body 80' and are interlocked with the rotating body 80' to selectively correspond to the mandrel unit 60', and the tube ( T) the tube processing hole (h2) into which the insertion processing is formed, the disk-shaped tube processing mold (100'); a tube holder (110') provided between the mandrel unit (60') and the tube processing mold (100'), on which the tube (T) is mounted; It is installed between the tube holder 110' and the first fixing block 20', and includes a tube separation unit 150' for separating the tube T from the mandrel unit 60'. A power transmission shaft manufacturing system for a vehicle, characterized in that it.

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