KR20140111220A - Apparatus for suporting bar-like workpieces and laser machining apparatus for machining bar-like workpieces using the same - Google Patents

Abstract

The present invention provides an apparatus for supporting a bar type member, and a laser processing machine for processing a bar type member using the same. The apparatus for supporting a bar type member is capable of increasing the bar type member processing efficiency by maintaining a central shaft line at the same height regardless of shape or size of a cross section of the bar type member, rotating the bar type member to be able to rotate around the central shaft line, linearly reciprocating in a longitudinal direction, and having a bar type member supporting device including a supporting block for supporting with respect to the bar type member having a cross section with various sizes or shapes; and obtaining the desired processing accuracy by maintaining the central shaft line of the bar type member and a clamping shaft line of a clamping means to match with each other while the bar type member is clamped.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bar-type member supporting apparatus and a laser processing apparatus for bar-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bar-like member supporting apparatus and a laser processing machine for processing a bar-type member using the same, and more particularly, To a bar-like member supporting apparatus for laser processing a bar-like member and a laser processing machine for bar-type member processing using the same.

The machine tool is provided with a supporting device for supporting the bar-shaped member to process the bar-shaped member having a predetermined length. Here, the bar-like member refers to a long object (a long workpiece) which is made of a material that is much longer than the cross-section and is substantially inflexible. The bar-shaped member may have a cross-section or a closed cross-section that is open in any direction, the shape of the cross-section being circular, elliptical, rectangular, square or the like.

Japanese Utility Model Laid-Open Publication No. 56-38742 (published on Apr. 11, 1981, hereinafter referred to as " Prior Art 1 ") discloses a supporting device for supporting a bar-

In the prior art 1, two workpiece supporting members are installed so as to be mutually rotatable in the form of scissors around a common coupling axis. In this case, a "V" -shaped workpiece insertion groove is formed between the two workpiece support members.

Prior Art 1 is configured such that the space size of the "V" -shaped workpiece insertion groove gradually increases or decreases according to the rotation angle of the two workpiece support members. Therefore, when it is desired to support a bar-like member having a large sectional size (in the case of a circular pipe, the outer diameter thereof), the space size of the "V" -shaped workpiece insertion groove is enlarged and the bar- It is necessary to reduce the space size of the "V" shaped workpiece insertion groove.

In the prior art 1, there is no problem in use when the cross-sectional dimension of the workpiece, that is, the bar-like member is large, but as the cross-sectional dimension is gradually reduced, the space size of the "V & A phenomenon of pinching the two workpiece supporting members, that is, a stiction phenomenon occurs. As a result, the bar-shaped member can not be rotated about its own central axis but can not move in the longitudinal direction of the bar-shaped member.

In order to solve this problem, in the prior art 1, the supporting surfaces of the work (bar-shaped member) formed on each of the two workpiece supporting members are constituted by two supporting surfaces having a certain angle. That is, a supporting surface is formed on the upper end of the two workpiece supporting members so that the bar-shaped member having a small sectional dimension can be rotated and moved.

On the other hand, a support device for supporting the above-described bar-like member is applied to a laser processing machine as an example of a machine tool.

Generally, a laser processing machine is a device for cutting and processing a laser beam emitted from a laser oscillator by irradiating a condensed laser beam toward a material through a nozzle provided on the processing head. For example, a laser processing machine for processing a flat plate member, . Although a laser processing machine in which a flat plate member processing is located is mainly used for cutting a flat plate, there is also provided a device capable of processing a bar type member such as a pipe (see Patent Reference 1: EP0548006A2, Reference 2: KR10-2011- 0116998A). On the other hand, Korean Patent Laid-Open No. 10-2010-0054781 (published on May 25, 2010, referenced patent 3) is available as a bar-type member exclusive laser processing machine.

In a typical bar-type member laser processing machine, as shown in Fig. 1, a bar-like member supporting device 80 is provided below the bar-like member 20 in order to prevent deflection of the bar-like member. That is, depending on the cross-sectional type of the bar-like member 20, a plurality of support blocks 81 and 82 of a "V" And installed vertically in the vertical direction of the working bed.

The supporting blocks 81 and 82 mentioned above are used as the cross-sectional type of the bar-like member 20, for example, a "V" shape in the case of a circular cross-section pipe, and a " The following problems are encountered.

That is, there is a disadvantage in that the support blocks 81 and 82, which are bar support members, are to be replaced each time according to the cross-sectional type of the bar-like member, and the processing efficiency of the bar- .

Therefore, in recent years, a technique has been developed which can support bar-shaped members of various cross sectional types without replacing the bar-like member supporting device.

For example, reference 3 discloses the use of a rotatable roller-like support member which extends along the outer periphery of the roller and has a groove section of an open cross-sectional shape, And the radial distance between the roller rotation shafts changes in the circumferential direction.

The bar-shaped member can be rotated about its central axis while maintaining its central axis at the same height regardless of the size or shape of the cross-section of the bar-like member, and at the same time, The present invention provides a bar-like member supporting apparatus which can move a bar-like member.

In addition, the present invention can improve the processing efficiency of the bar-shaped member by providing the bar-like member supporting device including the supporting block that supports the bar-shaped member having various cross-sectional sizes or shapes in an interchangeable manner, So that the clamping axis of the clamping means and the central axis of the bar-shaped member can always be kept in agreement with each other so that a desired machining accuracy can be obtained.

According to another aspect of the present invention, there is provided a bar-like member supporting apparatus comprising: a base support; A first movable support block having a first support surface for supporting the bar-like member, the first movable support block being installed on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar-like member; And a second support surface that supports the bar type member and is disposed so as to face the first support surface and is provided on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar type member The first movable support block and the second movable support block are installed so as to be linearly movable in a direction approaching each other or a direction away from each other.

According to another aspect of the present invention, there is provided a laser processing machine for processing a bar-type member, the laser processing machine including a bed having a predetermined length, and a sliding member moving and sliding on the bed so as to be movable in the longitudinal direction of the bar- And a clamping means for clamping the bar-shaped member, and a processing head for irradiating a bar-shaped member conveyed by the bar-like member moving device with a laser beam, Wherein the bar-like member is clamped to the clamping means so that the clamping axis of the clamping means and the central axis of the bar-like member are coaxial, characterized in that the laser- Characterized in that the bar-like member support device according to any one of the preceding claims has at least one It is characterized.

According to another aspect of the present invention, there is provided a bar-like member supporting apparatus comprising: a base support; A first movable support block having a first support surface for supporting the bar-like member, the first movable support block being installed on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar-like member; And a second support surface that supports the bar type member and is disposed so as to face the first support surface in a direction opposite to the longitudinal direction of the bar type member and in a direction of movement of the first movable support block A second movable support block installed on the base support so as to be linearly movable in a direction opposite to the first movable support block; And a second movable support block which is disposed to be spaced apart from the first movable support block and the second movable support block along the longitudinal direction of the bar type member and which supports the bar type member while contacting the bar type member while the bar type member is rotating And an auxiliary supporting block for supporting the auxiliary supporting block.

According to another aspect of the present invention, there is provided a laser processing machine for processing a bar-type member, the laser processing machine including a bed having a predetermined length, and a sliding member moving and sliding on the bed so as to be movable in the longitudinal direction of the bar- And a clamping means for clamping the bar-shaped member, and a processing head for irradiating a bar-shaped member conveyed by the bar-like member moving device with a laser beam, Wherein the bar-like member is clamped to the clamping means such that the clamping axis of the clamping means and the central axis of the bar-shaped member are coaxial, characterized in that the laser- Characterized in that the bar-like member support device according to any one of the preceding claims has at least one Characterized in that the value.

In the present invention, when a bar-like member having a changed cross-sectional size or shape is to be machined, the bar-shaped supporting device, which does not require replacement of the supporting block for supporting the bar-shaped member, have. For example, in order to convert the bar-shaped member having a rectangular cross-section to a working process of laser-processing the bar-shaped member having a cross-sectional shape in the working process of laser-processing the bar- However, the present invention does not need to be replaced at all, and further, the time required for the replacement operation can be allocated to the bar-like member cutting operation, thereby improving the production efficiency in the work shop.

Further, it is possible to maintain the clamping axis of the clamping means and the central axis of the bar-like member to be always aligned with each other in a state where the bar-like member is clamped, so that a desired machining accuracy can be obtained. That is, since the clamping axis of the clamping means and the central axis of the bar-shaped member can always be kept in a state in which the bar-like member is clamped, when the bar-shaped member has a small cross-sectional dimension or a long length, Can be minimized. Thus, the bar-shaped member is rotated about the central axis or the clamping axis with a constant gap with respect to the machining head, and thereby the laser machining can be performed more precisely.

In addition, the first and second movable support blocks can be easily replaced when the first and second movable support blocks are worn or damaged, and the efficiency of the machining operation can be increased.

The bar-shaped member can be rotated about its central axis while maintaining its central axis at the same height regardless of the size of the cross-section of the bar-shaped member, and linearly reciprocating .

Further, the present invention can minimize the deflection of the bar-shaped member during the laser machining even for a square pipe or a rectangular pipe as well as a circular shape among the cross-sectional shapes of the bar-like member.

In the present invention, the first support surface and the second support surface are each formed in a straight line shape without changing the inclination angle, but the first support surface and the second support surface A bar-shaped member having a cross-sectional size or a cross-sectional shape can be interchangeably supported.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing a configuration of a bar-like member supporting apparatus in a configuration of a laser processing machine for bar-type member processing; Fig.
2 is a perspective view of a laser machining apparatus for processing a bar type member according to the present invention.
Fig. 3 is a view showing a state in which the bar-like member supporting device is raised to the outside of the bed in the laser processing machine of Fig. 2; Fig.
Fig. 4 is a perspective view of the bar-type member moving device in the laser processing machine of Fig. 2 in a state of moving toward the processing device in the "B"
Fig. 5 is a view showing a state in which one of the bar-like member supporting devices in the laser processing machine of Fig. 4 is lowered to the inside of the bed; Fig.
6 is a perspective view of a bar support member support apparatus according to an embodiment of the present invention.
FIGS. 7 and 8 are perspective views for explaining a block driving means for operating the first movable support block and the second movable support block in the configuration of the bar-like member supporting apparatus of FIG. 6;
Figs. 9 to 11 are views showing the operating states of the first and second movable support blocks of the bar-like member supporting apparatus of Fig. 6 according to the size or shape of the cross-section of the bar-like member.
12 is a view for explaining a state in which intersections of the first support surface and the second support surface are located on a virtual vertical line;
13 and 14 are perspective views of a bar-like member supporting apparatus according to another embodiment of the present invention.
Fig. 15 is a view for explaining a block driving means of the bar-like member supporting apparatus of Fig. 13;
Fig. 16 is a diagram showing an operating state of the bar-like member supporting apparatus shown in Fig. 13 with respect to the bar-like member having a circular cross-sectional shape; Fig.
Fig. 17 is a view showing an operating state of the bar-like member supporting device of Fig. 13 with respect to a bar-like member having a square cross-sectional shape; Fig.
Fig. 18 is a diagram showing an operating state of the bar-like member supporting apparatus of Fig. 13 with respect to a bar-like member having a rectangular cross-sectional shape; Fig.
19 is a perspective view of a bar-like member supporting apparatus according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 and 4, the laser processing machine for processing a bar-type member according to the present invention includes a bed 100 having a predetermined length, a bar-like member moving device 60, a processing device 400, And a bar type member supporting device 500. The bar type member supporting device 500 includes:

The bed 100, the bar-like member moving device 60, the processing device 400 and the bar-like member guiding device 360 are configured for a bar-type member laser processing machine, Known technology.

The bar-like member moving device 60 is installed on the upper surface of the bed 100 and is installed to be slidable in the longitudinal direction A of the bed 100 by a driving source such as a motor, The bar-shaped member guiding device 360 is moved toward or away from the bar-shaped member guiding device 360.

Bar type member The moving device 60 is provided with clamping means (not shown) having a clamping axis CL2 for clamping the one end 200a of the bar- This clamping means is provided such that a plurality of jaws (JAW) arranged in a divided manner along the circumferential direction of any circle are operated in the radial direction. Here, the clamping axis CL2 means a line extending in the longitudinal direction of the bed 100 from the center point of any circle. The bar moving member moving device 60 also includes a rotating means (not shown) for rotating the clamped bar member 200 by rotating the jaws JAW of the clamping means in the forward and reverse directions.

The bar type member moving device 60 rotates the bar type member 200 in a clockwise / counterclockwise direction in a state where one end 200a of the bar type member 200 is clamped, In the longitudinal direction (A) of the member (200).

The processing device 400 irradiates the laser beam transmitted from the laser oscillator (not shown) to the bar-shaped member 200 for processing the bar-like member 200 conveyed by the bar-like member moving device 60 (Not shown).

Here, the processing device 400 is installed so as to face the bar-like member moving device 60.

The bar-like member guiding device 360 is provided on the upper surface of the bed 100 at a position facing the bar-like member moving device 60 and includes a bar-like member moving device 60 200 while supporting the other end 200b thereof.

Here, the bar-like member guiding device 360 is fixedly installed on the upper surface of the bed 100 and may be installed on the upper surface of the bed 100 so as to be movable toward the bar-like moving device 60 in the longitudinal direction thereof .

Here, the bar-shaped member 200 is subjected to a processing process, for example, a cutting process, by the processing head 450 of the processing device 400, and more specifically, passes through the bar- A part corresponding to the other end 200b of the protruded bar-like member 200 is subjected to laser processing by the processing head 450 of the processing device 400. [

In the laser processing machine for processing a bar-type member, at least one bar-like member supporting device (500) is provided on the bed (100).

According to the configuration of the bar-like member supporting apparatus 500 according to the present invention, it is not necessary to replace the bar-like member supporting apparatus 500 according to the shape or size of the cross-section of the bar- Can be prevented from being lowered.

That is, the bar-like supporting device including the supporting block is newly constructed so that it is not necessary to replace the supporting block for supporting the bar-like member 200 when the bar-like member 200 having the shape or size of the cross section is changed.

For example, in order to convert the bar-shaped member 200 having a rectangular cross-section to a working process for laser-processing the bar-shaped member 200 having a cross-sectional shape as a circular pipe, It is necessary to replace the supporting block constituting the bar-like member supporting device. However, the present invention does not need to replace the supporting block at all, and accordingly, the time spent in the conventional supporting block replacing operation can be allocated to the bar- There is an improvement in production efficiency in the factory.

According to the bar-like member supporting apparatus 500 of the present invention, the clamping axis CL2 of the clamping unit and the center axis CL1 of the bar-like member 200 are clamped in a state where the bar- So that the phenomenon of sagging toward the bed 100 can be minimized when the cross-sectional dimension of the bar-shaped member 200 is small or the length thereof is long. Thus, the bar-shaped member 200 is rotated clockwise or counterclockwise about the central axis CL1 or the clamping axis CL2 while maintaining a constant gap with respect to the processing head 450, The laser processing can be performed more precisely with respect to the child member 200. [

The bar-like member supporting apparatus 500 includes a base support 510, a first movable support block 520, and a second movable support block 530.

The base support 510 is formed in a substantially rectangular plate shape and is vertically erected from the inside to the outside of the bed 100 together with the first movable support block 520 and the second movable support block 530 Or vertically so as to be able to protrude and retract from the outside of the bed 100 to the inside. That is, through the entrance (101) formed in the bed (100).

A cylinder 110 is vertically installed in the bed 100 and an actuating rod 111 of the cylinder 110 is fixed to the upper end of one side of the base support 510.

The base support 510 is guided by guiding means such as an LM block (Linear Motion block) and an LM rail (Linear Motion rail) so as to be slidable in the vertical direction with respect to the mounting block 120 installed in the bed 100. [ (Not shown). That is, the base support 510 is installed to be slidable in a vertical direction with respect to the mounting block 120, and is elevated and lowered by a cylinder 110, which is a driving actuator, to move the entrance 101 formed in the bed 100 .

Herein, the base support 510 together with the first movable support block 520 and the second movable support block 530 is vertically and vertically movable from the inside to the outside of the bed 100 or from the outside to the inside of the bed 100, The reason why the base support 510 is installed is as follows.

First, the reason for operating the base support 510 to move outwardly from the inside of the bed 100 together with the first movable support block 520 and the second movable support block 530 is that the bar support member 510 So as to support the bar-shaped member 200 for laser processing. At this time, the cylinder 110 for lifting the base support 510 is controlled so that the forward stroke length of the operation rod 111 is maximized.

The reason for vertically lowering the base support 510 from the outside to the inside of the bed 100 is that the bar support member moving device 60 is moved in the longitudinal direction of the bed 100 in a state where the bar support member 200 is clamped Or in the process of moving toward the machining head 450 in the longitudinal direction of the bar-shaped member 200, it does not collide with the base support 510.

The first movable support block 520 is installed to be linearly movable with respect to the base support 510 in a direction intersecting the longitudinal direction of the bar-like member 200 at an angle (see FIG. 9).

The second movable support block 530 is linearly movable with respect to the base support 510 in a direction intersecting the longitudinal direction of the bar-like member 200 at an angle. The first movable support block 520 ) Are also installed so as to be movable linearly relative to each other.

A first support surface 521 and a first support surface 521 for receiving and supporting the bar-shaped member 200 are formed on the outer sides of the first and second movable support blocks 520 and 530, The second support surface 531 is disposed so as to face the opposite direction. The first support surface 621 and the second support surface 631 may be formed in a flat or curved shape and may be in line contact or point contact with the bar member 200 according to the shape.

The first support surface 521 and the second support surface 531 are preferably formed in a straight line so as to have a predetermined acute angle with respect to the base support surfaces 522 and 532 of the support block. That is, the first support surface 521 and the second support surface 531 are formed to be inclined linearly so as to be distant from each other toward the upper side and closer to each other toward the lower side.

The intersection angle alpha between the first support surface 521 and the second support surface 531 formed on the first movable support block 520 and the second movable support block 530 is always It is constant.

The inclination angle of the first support surface 521 with respect to the linear movement direction is β1, the inclination angle of the second support surface 531 with respect to the linear movement direction is β2, the first support surface 521 and the second support surface 531 ) Is defined as?, The intersecting angle? Is formed so as to satisfy the following expression.

α = 180 - β1 - β2

The inclination angle? 1 of the first support surface and the inclination angle? 2 of the second support surface may be different from each other, but they are preferably the same, The angle of inclination? 2 of the surface is preferably 45 degrees. At this time, the intersection angle? May be formed at 90 degrees.

The first movable support block 520 and the second movable support block 530 are linearly moved in a direction approaching each other or in a direction away from each other while being supported by the first support surface 521 and the second support surface 531 And supports the bar-shaped member 200.

The block driving means includes a drive shaft 551 having a predetermined length rotated by the drive motor 540 and a drive shaft 551 coupled to the lower side of the base supporter 510 so as to be rotatable forward and backward, And power transmission means 552 for making the first movable support block 520 and the second movable support block 530 move linearly synchronously with each other.

The power transmitting means 552 includes a first rack gear 553 provided below the first movable support block 520 and a first rack gear 553 meshed with the first rack gear 553, A second rack gear 555 provided at a lower portion of the second movable support block 530 and a second rack gear 555 which is gear-engaged with the second rack gear 555, A second pinion gear 556 for linearly moving the block 530, a first power transmission gear 557 coupled to a rotary shaft 554a on which the first pinion gear 554 is mounted, And a second power transmission gear 558 which is coupled to a rotation shaft 556a on which the first pinion gear 556 is mounted and is gear- And the rotary shaft 556a of the second pinion gear 556 and the drive shaft 551 are connected to each other so as to transmit power.

The drive shaft 551 is provided with a drive pulley 560 and a rotary shaft 554a of the first pinion gear 554 and a rotary shaft 556a of the second pinion gear 556 is provided with a driven pulley 561 And the drive pulley 560 and the driven pulley 561 are connected by a belt 562 or a chain for power transmission.

The first movable support block 520 is installed so as to be linearly movable with respect to the base support 510 via the first linear movement guide means 525.

The first linear movement guiding means 525 includes an LM rail 525a and a mounting bracket 525b slidably coupled to the LM rail 525a. The mounting bracket 525b is provided with an LM rail 525a A conventional LM block to be coupled is provided. Here, a first rack gear 553 provided at a lower portion of the first movable support block 520 is provided at a lower portion of the mounting bracket 525b. That is, since the first movable support block 520 is detachably attached to the mounting bracket 525b, the fact that the first rack gear 553 is installed in the lower portion of the mounting bracket 525b is, as a result, And is provided at the lower portion of the block 520.

The LM rail 525a is fixed to the other side of the base support 510, which is opposite to the side where the actuating rod 111 of the cylinder 110 is installed.

The second movable support block 530 is installed so as to be linearly movable with respect to the base support 510 via the second linear movement guide means 527.

The second linear movement guide means 527 comprises a mounting bracket 527b having an LM rail 527a and an LM block 527c slidably coupled to the LM rail 527a, And a second rack gear 555 provided at a lower portion of the second movable support block 530 is provided at a lower portion of the second movable support block 527a. That is, since the second movable support block 530 is detachably attached to the mounting bracket 527b, the fact that the second rack gear 555 is installed at the lower portion of the mounting bracket 527b is, consequently, And is provided at the lower portion of the block 530.

The LM rail 527a is fixed to the inner surface of the cover 515 fixed to the other side of the base support 510 corresponding to the opposite side of the cylinder 110 on which the operation rod 111 is installed.

Since the first movable support block 520 and the second movable support block 530 are detachably attached to the mounting brackets 525a and 527a respectively, damage due to friction with the bar- It can easily be replaced if it is lost or damaged.

The block driving means is arranged so that the intersection points CP of the first support surface 521 and the second support surface 531 formed by projecting in the longitudinal direction of the bar-shaped member 200 are located on the virtual vertical line VL, The first movable support block 520 and the second movable support block 530 are linearly movably controlled. That is, the first movable support block 520 and the second movable support block 530 are driven and controlled to be linearly movable synchronously with each other by the block drive means.

The first support surface 521 and the second support surface 531 may intersect with each other to have an intersection CP formed by projecting in the longitudinal direction of the bar-like member 200. However, if the bar size of the bar-shaped member 200 is large, the first support surface 521 and the second support surface 531 may not directly intersect with each other. In this case, 521 and an extension of the second support surface 531 intersect with each other.

12, the intersection CP is shifted to the vertical upper side as the cross-sectional dimension of the bar type member 200 having different cross-sectional dimensions is smaller, and as the cross-sectional dimension of the bar type member 200 is larger, CP) is moved to the vertical lower side. The center axis CL1 of the bar-shaped member 200 is located on a virtual vertical line VL where the intersections CP are arranged.

When the linear movement of the first movable support block 520 and the linear movement of the second movable support block 530 are individually controlled, the intersection CP of the first support surface 521 and the second support surface 531 When the first movable support block 520 and the second movable support block 530 are linearly moved synchronously with each other, the first movable support block 520 and the second movable support block 530 are moved in the longitudinal direction of the bar- The intersections CP of the first support surface 521 and the second support surface 531 formed by projection may be located on the virtual vertical line VL.

9 and 10, it is possible to support the bar-shaped member 200 such as a square pipe or a circular pipe whose sectional dimensions are different from each other so that the center axis CL1 thereof is always in the same position, (CL1) and the clamping axis (CL2) coincide with each other.

In addition to the bar-shaped member 200 such as a square pipe or a circular pipe having different sectional dimensions, the bar-like member 200 such as a rectangular pipe as shown in Fig. 11 is also moved in the longitudinal direction of the bar- And the center axis CL1.

Referring to FIG. 11, the first movable support block 520 (solid line) and the second movable support block 530 (solid line) are rotated in the "C" direction Or controls the first movable support block 520 (indicated by two-dot chain line) and the second movable support block 530 (indicated by two-dot chain line) to be spaced apart (retracted) from each other in the "D" direction .

In other words, the rotation interference between the corner portion of the rectangular bar type member 200 and the first support surface 521 of the first movable support block 520 and the second support surface 531 of the second movable support block 530 The first machining support block 520 and the second moveable support block 530 are simultaneously advanced or retracted.

In the case of the rectangular bar type member 200 according to the present invention, deflection of the bar type member can be minimized by minimizing the deflection of the bar type member.

The first support surface 521 and the second support surface 531 may have a predetermined length and the length L of the first support surface 521 and the second support surface 531 may be, 210 to 220 mm.

Thus, the bar-shaped member 200, which is a circular pipe, can be stably rotated from the center of the bar-shaped member 200 to the center of the bar- Guide and movement in the longitudinal direction can be performed. As the cross-sectional dimension of the bar-shaped member 200 becomes smaller, the pinched phenomenon is not generated at all and can be easily moved in the longitudinal direction.

In the case of the bar-shaped member 200, which is a square pipe, the cross-sectional dimension of the bar-shaped member 200 is, for example, 15 mm x 15 mm to 175 mm x 175 mm, As the cross-sectional dimension of the bar-shaped member 200 becomes smaller, it is possible to easily move the bar-shaped member 200 in the longitudinal direction without generating any pinching.

In the case of the bar-shaped member 200, which is a rectangular pipe, the rotation guide of the bar-type member 200 about the center axis CL1 and the guide in the longitudinal direction of the bar- As the cross-sectional dimension of the bar-shaped member 200 becomes smaller, it is possible to move the bar-shaped member 200 easily in the longitudinal direction without causing any pincer phenomenon.

Hereinafter, a process of operating the first movable support block 520 and the second movable support block 530 with the structure of the block driving means described above will be described.

The drive pulley 560 is rotated and the rotational force of the drive pulley 560 is transmitted to the driven pulley 561 through the belt 562. The drive pulley 560 is rotated by the driving force of the drive motor 540, Thereafter, the rotary shafts 554a and 556a are simultaneously rotated by the rotation of the driven pulley 561 and the first and second power transmission gears 557 and 558 provided on the rotary shafts 554a and 556a, respectively, Are synchronously rotated in opposite directions in the state of being engaged with each other.

At this time, the first pinion gear 554 and the second pinion gear 556 provided on the rotating shafts 554a and 556a are synchronously rotationally driven in opposite directions to each other so that the first movable support block 520 and the second The movable support blocks 530 approach and cross each other or do not intersect with each other.

Accordingly, the first movable support block 520 and the second movable support block 530 are drive-controlled to be linearly movable synchronously with each other by the block drive means 550. [ That is, the first movable support block 520 and the second movable support block 530 cross each other according to the size of the cross-sectional dimension of the bar-shaped member 200 so that the intersection CP is formed, It is possible to perform synchronous control so that an intersection CP does not occur due to non-intersection.

On the other hand, a rotational force transmitting rod member 570 is connected to one end of the drive shaft 551 and the motor shaft 541 of the drive motor 540 via a universal joint 575, The member 570 is composed of a first rotating force transmission rod member 571 and a second rotation force transmission rod member 572. The member 570 may be any one of a first rotating force transmission rod member 571 and a second rotation force transmission rod member 572 The length of the rotative force transmitting rod member 570 can be varied because it is structured so as to be slidably inserted and drawn out in the longitudinal direction inside the remainder.

The first and second rotatable transmission rod members 571 and 572 are spline-coupled to each other so that the rotational force generated by the drive motor 540 can be transmitted, and the first and second rotatable transmission rod members 571 and 572 can be inserted and withdrawn.

Here, the rotational force transmitting rod member 570 is not constituted by a single component but is constituted by a first rotational force transmitting rod member 571 and a second rotational force transmitting rod member 572, which are separated into two, The following advantages are obtained.

First, when the base support 510 is lifted and lowered from the inside or outside of the bed 100 together with the first movable support block 520 and the second movable support block 530 into the inside of the bed 100, The length of the member 570 can be varied.

3, in the process of moving the bar-like member moving device 60 toward the processing head 450 in the "B" direction for cutting the bar-like member 200, The second rotating force transmitting rod member 572 is slid into the first rotating force transmitting rod member 571 and eventually the rotating force transmitting rod member 570 is inserted into the bed 100, So that the state of FIG. 5 is finally obtained.

Second, since the connection with the drive shaft 551 is connected by the universal joint 575, the function of the universal joint 575 can be maximized.

3 and 5, when two or more base supports 510 are arranged, the drive shaft 551 provided on each of the base supports 510 is connected to the base support 510 via a universal joint 575 And is connected to each end of the rotational force transmitting rod member 570. Therefore, it is possible to control the first and second movable support blocks 520 and 530 installed on the plurality of base supports 510 to move synchronously with each other.

For example, assuming that five base supports 510 are installed, the first and second movable support blocks 520 and 530 installed on all the base supports 510 are operated simultaneously, .

Meanwhile, the first movable support block 520 and the second movable support block 530 are disposed in parallel with each other. The first movable support block 520 and the second movable support block 530 are preferably arranged to be orthogonal to the longitudinal direction of the bar-like member 200.

It is preferable that the first movable support block 520 and the second movable support block 530 are formed in the same shape and same size in terms of component commonization and improvement of assemblability. For example, the first movable support block 520 and the second movable support block 530 are each formed of a triangular plate shaped body having a substantially right angle.

13 and 14 are perspective views of a bar-like member supporting apparatus according to another embodiment of the present invention.

13 and 14, the bar-like member supporting apparatus 600 of the present embodiment includes a base support 610, a first movable support block 620, a second movable support block 630, A block 640, an elevation driving unit 650, and a block driving means 660.

At least one bar support member 600 of the present embodiment is provided in the bed 100 of the laser processing machine for bar member type of the present invention and a plurality of the bar support members 600 are provided so as to be spaced along the longitudinal direction A of the bar member It is preferable to support the bar-shaped member 200.

The base support 610 is formed of a substantially rectangular plate and is integrally formed with the first movable support block 620 and the second movable support block 630 from the inside to the outside of the bed 100, As shown in FIG.

A supporting apparatus elevating unit (not shown) for elevating and lowering the bar supporting member supporting apparatus 600 of this embodiment from the inside to the outside of the bed 100 or from the outside to the inside of the bed 100 in a vertical direction (Not shown) may be used for the support device elevating portion in this embodiment.

The first movable support block 620 is installed on the base support 610 so as to be linearly movable in a direction intersecting the longitudinal direction A of the bar-like member 200 and supports the bar- And has a first support surface 621.

The second movable support block 630 is supported on the base support 610 in a direction crossing the longitudinal direction A of the bar-like member 200 and in a direction opposite to the movement direction of the first movable support block 620 And is installed so as to be linearly movable. That is, the first movable support block 620 and the second movable support block 630 are linearly moved in a direction approaching each other or a direction away from each other.

The second movable support block 630 has a second support surface 631 that supports the bar-shaped member 200 and is disposed in a direction opposite to the first support surface 621. The first support surface 621 and the second support surface 631 may be formed in a flat or curved shape and may be in line contact or point contact with the bar member 200 according to the shape.

The first support surface 621 and the second support surface 631 are formed to be inclined so as to be away from the bar member 200 toward the upper portion and closer to the bar member 200 toward the lower portion.

The base support body 610, the first movable support block 620 and the second movable support block 630 are connected to the base support 510 of the support structure of the bar type member shown in Fig. 6, the first movable support block 520, And the second movable support block 530 are substantially the same as those of the second movable support block 530, detailed description thereof will be omitted.

The auxiliary supporting block 640 supports the bar type member 200 in contact with the bar type member 200 while the bar type member 200 is rotated and moves along the longitudinal direction A of the bar type member 200, And is spaced apart from the movable support block 620 and the second movable support block 630.

It is preferable that the bar-shaped member 200 is stably supported without being sagged while being in contact with the first support surface 621 and the second support surface 631 throughout the laser processing for precise machining of the bar- Do.

However, when the bar-shaped member 200 whose cross-sectional shape is not circular is rotated, the bar-shaped member 200 does not contact the first support surface 621 and the second support surface 631 and sagging occurs, There may be a problem that the accuracy is low.

For example, at a particular angle, the bar-like member 202 may be positioned between the first and second support surfaces 621 and 631, while the bar-shaped member 202 having a square cross- There arises a situation in which only one of the support surfaces is contacted or the two support surfaces are not contacted at all and are unstably supported. In such a situation, the center axis CL1 of the bar-like member 200 and the clamping axis CL2 do not coincide with each other, and the working accuracy of the bar-shaped member is lowered.

The auxiliary support block 640 may be used to support the bar type member 200 while contacting the bar type member 200 while the bar type member 200 is rotated to prevent the bar type member 200 from sagging .

14, the auxiliary support block 640 may be formed in a roller shape rotatably about a rotation axis C3 arranged parallel to a direction intersecting the longitudinal direction A of the bar-like member have.

When the bar-like member 200 is linearly moved along the longitudinal direction A of the bar-like member by the bar-like member moving device 60, the roller-shaped auxiliary support block 640 is rotated about the rotation axis C3 So that the bar-shaped member 200 can be easily moved along the longitudinal direction A without friction.

The lifting and lowering driving unit 650 is configured to move the auxiliary supporting block 640 in accordance with the rotation angle of the bar type member 200 so that the bar type member 200 and the auxiliary supporting block 640 are always in contact with each other while the bar type member 200 is rotated 640).

The elevation driving unit 650 includes a linear conveying unit 652 coupled to the motor 651 and the auxiliary supporting block 640 and linearly conveying the auxiliary supporting block 640 by receiving the driving force of the motor 651, 651 and a linear conveying unit 652, and the like. Such a configuration is well known to those skilled in the art, and a detailed description thereof will be omitted.

The elevation driving unit 650 raises or lowers the auxiliary supporting block 640 such that the center axis CL1 of the bar type member and the clamping axis CL2 can coincide with each other while the bar type member 200 is rotated.

The distance L2 between the center axis CL1 of the bar type member and the contact point at which the bar type member 200 can contact the auxiliary support block 640 is calculated according to the rotation angle of the bar type member 200 can do. The elevation driving unit 650 moves the auxiliary supporting block 640 up or down on the basis of the distance information L2 so that the bar supporting member 200 and the auxiliary supporting block 640 are always in contact with each other. The control unit (not shown) receives rotation angle information of the bar type member 200 and calculates distance L2 information for each rotation angle. Based on the distance L2 information, Command can be output.

The block driving means 660 linearly moves the first movable support block 620 and the second movable support block 630 in a direction in which they are simultaneously moved away from each other or in a direction approaching each other.

The block driving means 660 includes a first rack gear 661 coupled to the first movable support block 620 and a second rack gear 663 engaged with the first rack gear 661 to linearly move the first movable support block 620 A second rack gear 663 coupled to the second movable support block 630 and a second rack gear 663 meshed with the second movable support block 630 by being gear- A first power transmission gear 665 coupled to the rotation axis C1 on which the first pinion gear 662 is mounted and a second power transmission gear 665 coupled to the rotation axis C1 on which the second pinion gear 664 is mounted, And a second power transmission gear 666 coupled to the first power transmission gear 66 and gear-coupled to the first power transmission gear 665 and rotated in the opposite direction to the first power transmission gear 665.

15, the first power transmission gear 665 and the second power transmission gear 666 are disposed between the first pinion gear 662 and the second pinion gear 664. As shown in Fig.

At this time, the rotary driving force of the motor 667 is transmitted to the rotary shaft C1 of the first pinion gear and the rotary shaft C2 of the second pinion gear. The rotational axis of the motor 667 and the rotational axis C1 of the first pinion gear are connected by a belt so that the rotational driving force of the motor 667 is transmitted to the rotational axis C1 of the first pinion gear .

The motor 667 of this embodiment uses a motor having a self braking function. The first movable support block 620 and the second movable support block 630 are not moved by the above braking function even when power is not supplied to the motor 667 and the bar- Can support.

On the other hand, the first power transmission gear 665 and the second power transmission gear 666 are disposed so as not to be engaged with each other, and the rotation axis C1 and the second pinion gear 664, on which the first pinion gear 662 is installed, The driving motor may be connected to the rotating shaft C2 to rotate independently of each other.

6, the supporting device of the bar-like member of the present embodiment is different from the supporting device of the bar-like member in that the driving motor 667 for transmitting the driving force to the block driving means 660 is connected to the supporting device of the bar- . That is, the driving motors 667 provided in the supporting devices of the bar-like members independently transmit the driving force to the corresponding block driving means 660.

With reference to Figs. 16 to 18, operation states of the bar-like member supporting apparatus of this embodiment will be described with respect to bar-like members having various cross-sectional shapes.

16, the auxiliary supporting block 640 supports the bar-shaped member 201 while contacting the bar-shaped member 201 while the bar-shaped member 201 having a circular sectional shape is rotated. Since the distance L1 between the center axis CL1 of the bar-like member and the contact point at which the bar-like member 201 contacts the auxiliary support block 640 is always constant, the auxiliary support block 640 is moved up or down It is not necessary and can be kept at the same height.

16 shows a state in which the auxiliary supporting block 640 supports the bar-shaped member 201, the first movable supporting block 620 and the second movable supporting block 620 630 may be used to support the bar-shaped member 201.

17, the auxiliary support block 640 supports the bar-shaped member 202 while contacting the bar-shaped member 202 while the bar-shaped member 202 having a square cross-sectional shape rotates. The distance L2 between the center axis CL1 of the bar type member and the contact point at which the bar type member 202 contacts the auxiliary support block 640 during the rotation of the bar type member 202 is .

The change of the distance L2 is calculated according to the rotation angle of the bar type member 202 and the elevation driving unit 650 is driven in accordance with the change of the distance L2 to raise or lower the auxiliary support block 640, So that the member 202 and the auxiliary supporting block 640 are always in contact with each other.

The operating principle of the bar type member supporting device 600 with respect to the bar type member 203 having a rectangular cross section shown in Fig. 18 is the same as that of the bar type member 202 having a square cross section shown in Fig. . The distance L3 between the center axis CL1 of the bar type member and the contact point at which the bar type member 203 contacts the auxiliary support block 640 during rotation of the bar type member 203 is .

The change of the distance L3 is calculated according to the rotation angle of the bar type member 203 and the elevation driving unit 650 is driven in accordance with the change of the distance L3 to raise or lower the auxiliary support block 640, So that the member 203 and the auxiliary support block 640 are always in contact with each other.

6 and 13, the first movable support blocks 520 and 620 and the second movable support blocks 530 and 630 are linearly moved in a direction approaching each other or in a direction away from each other. When the first movable support blocks 520 and 620 and the second movable support blocks 530 and 630 collide with each other (A) of the bar-shaped member 200 in order to prevent the bar-shaped member 200 from being deformed.

However, referring to FIG. 19, the first movable support block 720 and the second movable support block 730 may be arranged so that the linear movement paths coincide with each other. That is, the first movable support block 720 and the second movable support block 730 may be disposed at the same position with respect to the longitudinal direction A of the bar-like member 200.

One of the first movable support block 720 and the second movable support block 730 is formed with an insertion space 722 into which another one can be inserted. 19, an insertion space 722 is formed at the center of the first support surface 721 of the first movable support block, and the first movable support block 720 and the second movable support 720, The second support surface 731 of the second movable support block is inserted into the insertion space 722 of the first movable support block and no collision problem occurs when the block 730 is moved in the direction of approaching each other.

At this time, a first supporting surface 721 is provided at a peripheral portion of the insertion space 722 to support the bar-shaped member 200.

In the present invention, the bar-like member supporting apparatus is applied to a bar-type member dedicated laser processing apparatus. However, the bar-like member supporting apparatus according to the present invention is also applicable to a flat plate laser processing apparatus.

100: Bed
200: bar type member
CL1: center axis
CL2: Clamping axis
60: Bar-like member moving device
400: Processing device
450: machining head
500: Bar-like member supporting device
510: Base support
520: first movable support block
530: second movable support block
570:

Claims (26)

A base support;
A first movable support block having a first support surface for supporting the bar-like member, the first movable support block being installed on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar-like member;
And a second support surface that supports the bar type member and is disposed so as to face the first support surface and is provided on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar type member And a second movable support block,
Wherein the first movable support block and the second movable support block are provided so as to be linearly movable in a direction approaching each other or in directions away from each other. The method according to claim 1,
Wherein the first support surface and the second support surface are formed to be linearly inclined so that the first support surface and the second support surface come closer to each other and become closer to each other. 3. The method of claim 2,
The inclination angle of the first supporting surface with respect to the linear moving direction is? 1, the inclination angle of the second supporting surface with respect to the linear moving direction is? 2, the intersecting angle between the first supporting surface and the second supporting surface is? when doing,
Wherein the intersection angle satisfies the following formula:? = 180 -? 1 -? 2. The method of claim 3,
Wherein the inclination angle of the first support surface and the inclination angle of the second support surface are the same. 5. The method of claim 4,
The inclination angle of the first support surface and the inclination angle of the second support surface are 45 degrees,
Wherein the crossing angle is 90 degrees. The method according to claim 1,
The first movable support block and the second movable support block are arranged so that their linear movement paths coincide with each other,
Wherein one of the first movable support block and the second movable support block is formed with an insertion space into which another one can be inserted. And a clamping means for slidably moving the bar-shaped member on the bed so as to be movable in the longitudinal direction of the bar-shaped member and clamping the bar-shaped member, the bar- And a processing head which has a processing head for irradiating a bar-shaped member conveyed by the bar-like member moving device with a laser beam, wherein the clamping axis of the clamping means and the central axis of the bar-like member are coaxial Wherein the bar-like member is clamped to the clamping means,
A laser processing machine for processing bar type member according to any one of claims 1 to 6, characterized in that at least one bar type member supporting device is provided in the bed. 8. The method of claim 7,
The base support, the first movable support block, and the second movable support block,
Wherein the lifting and lowering operation is performed in a vertical direction so as to be able to project from the inside of the bed to the outside or from the outside to the inside of the bed. 8. The method of claim 7,
The first movable support block and the second movable support block are linearly movable so that the intersection points of the first support surface and the second support surface formed by projecting in the longitudinal direction of the bar-like member are located on a virtual vertical line Further comprising: a block driving means for driving and controlling the bar-shaped member. 10. The method of claim 9,
Wherein the block driving means comprises:
A driving shaft that is rotatably connected to the front and rear sides of the base supporter and is rotated to receive a driving force and a rotation force receiving unit that receives the rotational force of the driving shaft to move the first and second movable support blocks in a linearly And a transfer means for transferring the laser beam to the bar-type member. 11. The method of claim 10,
A torque transmitting bar member connected to the one end of the drive shaft and the motor shaft of the drive motor for transmitting driving force to the drive shaft via a universal joint and having a first torque transmitting rod member and a second torque transmitting rod member; Further comprising:
One of the first and second rotatable transmission bar members is coupled to the other of the remainder of the remainder of the remainder in such a manner that the remainder of the remainder can be inserted and withdrawn in the longitudinal direction, And the length of the laser beam can be varied. 12. The method of claim 11,
When two or more base supports are arranged,
Wherein the driving shaft provided in each of the neighboring base supports is connected to the rotational force transmitting rod member via a universal joint. 8. The method of claim 7,
Wherein the bar-like member is in the form of a pipe. A base support;
A first movable support block having a first support surface for supporting the bar-like member, the first movable support block being installed on the base support so as to be linearly movable in a direction intersecting with the longitudinal direction of the bar-like member;
And a second support surface that supports the bar type member and is disposed so as to face the first support surface in a direction opposite to the longitudinal direction of the bar type member and in a direction of movement of the first movable support block A second movable support block installed on the base support so as to be linearly movable in a direction opposite to the first movable support block; And
And a second movable support block which is disposed so as to be spaced apart from the first movable support block and the second movable support block along the longitudinal direction of the bar type member and supports the bar type member while being in contact with the bar type member while the bar type member is rotating And an auxiliary support block. ≪ Desc / Clms Page number 20 > 15. The method of claim 14,
And an elevation driving unit for raising or lowering the auxiliary supporting block according to the rotation angle of the bar type member so that the bar type member and the auxiliary supporting block are always in contact with each other while the bar type member is rotating Wherein the bar-shaped member supports the bar-shaped member. 15. The method of claim 14,
The auxiliary support block includes:
Wherein the bar-like member is roller-shaped so as to be rotatable about a rotation axis disposed parallel to a direction crossing the longitudinal direction of the bar-like member. 15. The method of claim 14,
The first movable support block and the second movable support block are linearly movable so that the intersection points of the first support surface and the second support surface formed by projecting in the longitudinal direction of the bar-like member are located on a virtual vertical line Further comprising a block driving means for driving and controlling the driving means. 18. The method of claim 17,
Wherein the block driving means comprises:
A first rack gear coupled to the first movable support block, a first pinion gear meshed with the first rack gear to linearly move the first movable support block, and a second pinion gear coupled to the second movable support block, A second pinion gear that is gear-engaged with the second rack gear to linearly move the second movable support block, a first power transmission gear coupled to a rotating shaft on which the first pinion gear is installed, And a second power transmission gear coupled to a rotating shaft on which the second pinion gear is installed and gear-engaged with the first power transmission gear and rotated in a direction opposite to the first power transmission gear,
Wherein a rotational driving force is transmitted to any one of a rotational axis of the first pinion gear and a rotational axis of the second pinion gear. 19. The method of claim 18,
Wherein the first power transmission gear and the second power transmission gear comprise:
Wherein the first pinion gear and the second pinion gear are disposed between the first pinion gear and the second pinion gear. 15. The method of claim 14,
Wherein the first support surface and the second support surface are formed to be linearly inclined so that the first support surface and the second support surface come closer to each other and become closer to each other. 21. The method of claim 20,
The inclination angle of the first supporting surface with respect to the linear moving direction is? 1, the inclination angle of the second supporting surface with respect to the linear moving direction is? 2, the intersecting angle between the first supporting surface and the second supporting surface is? when doing,
Wherein the intersection angle satisfies the following formula:? = 180 -? 1 -? 2. 22. The method of claim 21,
Wherein the inclination angle of the first support surface and the inclination angle of the second support surface are the same. 23. The method of claim 22,
The inclination angle of the first support surface and the inclination angle of the second support surface are 45 degrees,
Wherein the crossing angle is 90 degrees. 15. The method of claim 14,
The first movable support block and the second movable support block are arranged so that their linear movement paths coincide with each other,
Wherein one of the first movable support block and the second movable support block is formed with an insertion space into which another one can be inserted. And a clamping means for slidably moving the bar-shaped member on the bed so as to be movable in the longitudinal direction of the bar-shaped member and clamping the bar-shaped member, the bar- And a processing head which has a processing head for irradiating a bar-shaped member conveyed by the bar-like member moving device with a laser beam, wherein the clamping axis of the clamping means and the central axis of the bar-like member are coaxial Wherein the bar-like member is clamped to the clamping means,
A laser beam machine for processing bar type member according to any one of claims 14 to 24, characterized in that at least one bar type member supporting device is installed in the bed. 26. The method of claim 25,
And a supporting device elevating part for elevating and lowering the bar supporting member supporting device from the inside of the bed to the outside or from the outside to the inside of the bed in a vertical direction .

Images