WO2018034378A2

WO2018034378A2 - Torch angle adjuster and cutting device comprising same

Info

Publication number: WO2018034378A2
Application number: PCT/KR2016/010046
Authority: WO
Inventors: 최진배
Original assignee: 주식회사 에큐원; 최진배
Priority date: 2016-08-19
Filing date: 2016-09-08
Publication date: 2018-02-22
Also published as: WO2018034378A3; DE112016003597T5; KR101677020B1

Abstract

The present invention relates to a torch angle adjuster and a cutting device comprising the same. The torch angle adjuster comprises: a lifting part which moves upwards and downwards by an operation part while being supported by a frame; a torque generating part which is connected to the lifting part and is driven by the lifting part so as to generate torque; a link unit which is linked to the torque generating part and converts the torque received from the torque generating unit into a rectilinear motion; a tilting link which is connected to the link unit and is tilted by receiving a motional force from the link unit; and a torch holder which supports a torch while being mounted on the tilting link. The torch angle adjuster of the present invention configured as above and a cutting device comprising the same are excellent in device agility since the angle adjustment of a torch is independently implemented by a separate torch tilting link, and thus the operation speed is rapid and productivity is high. In particular, the torch angle adjuster and the cutting device can minutely change the angle of the torch by applying a lead screw and a link device, and thus can be optimally applied to a precise cutting task.

Description

[Correction 20.09.2016] under Rule 26. Torch angle control device and cutting device having same

The present invention relates to a torch angle adjusting device and a cutting device having the same to adjust the angle of the various torch used when cutting the object.

A cutting torch mounted on a cutting device using a laser, gas, or plasma is generally used to cut a steel plate into a required shape through two-dimensional motion in the front, rear, left, and right directions. In this way, the cut surface of the iron plate cut by the cutting torch takes a vertical shape. That is to make a right angle to the upper surface of the iron plate.

However, in actual industrial sites, it is often required to form an inclined surface on the cut surface of the iron plate. For example, in order to butt-weld two sheets of steel sheets, an inclined surface is formed on the opposite surface, or when another steel sheet is inclined and welded on one steel plate, an inclined surface is formed around the steel plate.

Conventionally, as a method for forming an inclined surface on an iron plate, a vertical cutting surface is first formed using a cutting torch, and then the inclined surface is additionally machined using a separate cutting device. Naturally, such a series of work is not only very cumbersome and inconvenient, but also significantly lowers productivity, which causes the cost to rise.

In order to solve such a problem, a device has been developed that can tilt the torch itself to a desired angle by applying link mechanisms or robot joints of various methods, that is, bevel cutting.

For example, Korean Laid-Open Patent Publication No. 10-2009-0018260 (a torch rotating device for angle cutting and CNC cutting machine using the same) includes a vertical first rotating shaft, a second rotating shaft connected to be inclined to the first rotating shaft, and A torch rotating device comprising a cutting torch connected to a second rotating shaft has been disclosed. Since the cutting torch is coaxial with the central axis of the second rotating shaft, the cutting torch operates at an angle equal to the second rotating shaft.

By the way, the conventional torch rotating device has a disadvantage in that the fine angle adjustment of the cutting torch is inconvenient because the angle between the cutting torches with respect to the first rotating shaft is fixed. That is, the angle of the cutting torch cannot be adjusted separately without moving the first vertical axis of rotation.

In order to adjust the angle of the cutting torch, the whole gantry of the machine must be moved. In this case, since the position of the lower part of the cutting torch is changed, it is necessary to compensate the distance corresponding to the displacement of the cutting torch through further work. This is a factor that slows down the overall work. The reason is that the speed of the position change including the position adjustment of the gantry is not as fast as the displacement speed of the cutting torch.

The present invention has been created to solve the above problems, the angle adjustment of the torch is independently implemented by a separate torch tilting link is excellent in the agility of the device accordingly, the work speed is fast and high productivity, in particular lead screw and link mechanism It is an object to provide a torch angle adjusting device and a cutting device having the same that can be applied to the torch to change the angle of the torch to be finely applied, precise cutting work.

Torch angle adjustment device of the present invention for achieving the above object, the lifting unit for lifting and lowering movement by the drive unit in a state supported by the frame; A rotational force generating unit connected to the lifting unit and driven to the lifting unit to generate a rotational force; A link unit linked to the rotational force generating unit and converting the rotational force transmitted from the rotational force generating unit into linear motion; A tilting link connected to the link unit and being tilted by receiving an exercise force from the link unit; It characterized in that it comprises a torch holder for supporting the torch in a state mounted on the tilting link.

In addition, the lifting unit; A lifting body which receives power from the driving unit and moves up and down within a predetermined range, and a lifting rod extending downwardly fixed to the lifting body and connected to the rotational force generating unit, wherein the rotational force generating unit; It characterized in that it comprises one or more link drive shaft to rotate in conjunction with the lifting movement of the lifting rod.

In addition, the rotation force generating unit; The support casing provided in the lower part of the frame, the upper pulley and the lower pulley disposed up and down spaced in the support casing, the upper pulley and the lower pulley are connected, and combined with the lifting rod in the upper and lower movement of the lifting rod And a belt for rotating the pulley and the lower pulley, wherein the link driving shaft is a pulley shaft for supporting the upper pulley and the lower pulley and transmitting the rotational force of the upper and lower pulleys to the link unit.

In addition, the link unit; A pair of vertically extending I-links spaced apart from each other in parallel with each other, and a rotational movement received from the rotational torque from the pulley shaft, including a connecting link that is rotatably connected to the I-links on both sides through a connecting pin. Characterized in that.

In addition, the connection link; Rotating part that rotates using the pulley shaft as a rotating shaft and extends in a direction orthogonal to the longitudinal direction of the rotating part, the both ends of which are connected to I links on both sides through connecting pins. Characterized in that it comprises a connecting portion.

In addition, the tilting link is connected to both ends of the I link so as to be rotatable through a connecting pin, the torch holder is characterized in that located in the center between the connecting pin and the connecting pin.

In addition, the cutting device of the present invention for achieving the above object, the lifting unit which is lifted by the drive unit in the state supported by the frame, and installed in the lower portion of the frame so as to be rotatable to the lifting movement of the lifting unit A rotating force generating unit generating a rotating force, a link unit which is linked with the rotating force generating unit and converts the rotating force received from the rotating force generating unit into a linear motion, and a tilting link connected to the link unit and receiving a kinetic force from the link unit and tilting the link. And a torch angle adjustment device including a torch holder supporting the torch while being mounted on the tilting link; An axial rotation means installed at a lower portion of the frame to axially rotate a rotation force generating unit; Located in the frame, it is connected to the rear end of the torch and supports a flexible torch lead extending in the longitudinal direction, characterized in that it comprises a lead lifting unit for lifting the torch lead in conjunction with the angular movement of the torch.

In addition, the lead lifting unit; A vertical rod extending upwardly in the vertical state fixed to the frame, a lead holder supported to move up and down on the vertical rod in combination with a part of the torch lead, and a holder position adjusting unit for adjusting the height of the lead holder. It is characterized by including.

Torch angle control device and the cutting device having the same of the present invention made as described above, because the angle control of the torch is independently implemented by a separate torch tilting link, the agility of the device is excellent, and thus the work speed is fast and high productivity, In particular, the lead screw and the link mechanism can be applied to change the angle of the torch minutely, and can be optimally applied for precise cutting work.

1 is a perspective view of a cutting device having a torch angle control device according to an embodiment of the present invention.

2 is a front view of the cutting device shown in FIG.

3 is an enlarged perspective view illustrating the upper structure of the cutting device illustrated in FIG. 1.

4 and 5 are views for explaining the structure of the angle adjuster according to an embodiment of the present invention.

6a and 6b are views for explaining the operating principle of the angle adjustment mechanism shown in FIG.

7 and 8 are views for explaining the overall operation of the cutting device shown in FIG.

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

1 is a perspective view of a cutting device 11 having a torch angle adjusting device 55 according to an embodiment of the present invention, Figure 2 is a front view of the cutting device shown in FIG. 3 is an enlarged perspective view illustrating an upper structure of the cutting device illustrated in FIG. 1.

The torch angle adjusting device 55 according to the present embodiment is to be dealt with at the same time as the description of the angle adjusting device 55 as a component included in the cutting device 11.

As shown, the cutting device 11 according to the present embodiment, the housing 13 to provide an internal space, a fixed frame 16 fixed to the upper portion of the housing 13, and the fixed frame 16 The first output unit 17 is installed in the) and the lifting unit for lifting and lowering by the first output unit 17.

Firstly, the housing 13 is a rigid body that takes the form of a box and has a support ring 15 at its bottom. The support ring 15 provides a through passage 15a that opens the bottom surface of the housing 13 downward. The through passage 15a is a hole for passing the lifting rod 23 to be described later.

The fixed frame 16 is a support fixed to the upper portion of the housing 13, and the lifting and induction motor 17a, the drive pulley 17b, the driven pulley 17c and the drive screw 17e for axially rotating the lead screw 17e and Supports the transmission belt 17d.

The electric belt 17d serves to transmit the rotational force of the driving pulley 17b to the driven pulley 17c during the operation of the elevating induction motor 17a. In addition, the lead screw 17e is fixed to the center of rotation of the driven pulley 17c. The lead screw 17e is bidirectionally axially rotated by the elevating induction motor 17a to elevate the elevating body 19.

The lifting body 19 is a member engaged with the lead screw 17e and has a guide rail 19a perpendicular to one side. The guide rail 19a is supported by the rail guider 16a provided in the fixed frame 16 and guides the vertical lifting motion of the lifting body 19.

In addition, a lower portion of the elevating body 19 is provided with a holder case (19b). The holder case 19b is fixed to the lower part of the elevating body 19 as a disc-shaped member and accommodates the swivel disc 21 therein. The swivel disk 21 is rotatable with a bearing (not shown) accommodated in the holder case 19b. In addition, the lifting rod 23 extends vertically in parallel to the lower portion of the swivel disk 21.

Thus, since the swivel disk 21 can be rotated in the state accommodated in the holder case 19b, the support casing 39 can axially rotate in the arrow z direction as shown in FIG. This means that the support casing 39 can be rotated as much as the housing 13 is fixed.

In addition, the housing 13 is provided with a lead lifting portion. The lead lifting portion is a portion for fixing the flexible lead connected to the rear end of the torch 10, and when the rear end of the torch 10 rises, the lead lifting portion lifts the lead 10a by the rising height. In the absence of the lead lift portion, the lid may be stretched downward during the operation of the cutting device, which may interfere with rapid operation. Naturally, the lead lifter also plays a role of lowering the descending height when the rear end of the torch 10 descends.

The lead lifting unit, the vertical rod 27 extending to the vertical upper portion in a state where the lower end is fixed to the housing 13 and having a guide rail 27a on one side and supported to be elevated on the guide rail 27a. A holding bracket 29 and a lead holder 29a fixed to the holding bracket 29 are provided. The lead holder 29a takes the form of a ring and fixes the torch lead 10a through the inside thereof.

In addition, the air spring 31 is located on the side of the vertical rod (27). The air spring 31 serves to adjust the height of the holding bracket (29). For example, when the rear end of the torch 10 rises, the holding bracket 29 is raised by a height corresponding to the ascending height. On the contrary, when the rear end of the torch 10 descends, the holding bracket 29 is lowered by that much torch lead 10a. To prevent sagging.

As long as it can perform such a function, it is a matter of course that other lifting means can be applied instead of the air spring 31.

4 and 5 are views for explaining the structure of the angle adjuster 55 according to an embodiment of the present invention.

On the other hand, the lower portion of the housing 13, the axial rotation motor 35, the drive gear 37 and the driven gear 33 is provided. The axial rotation motor 35 is operated by a control signal transmitted from the outside to rotate the drive gear 37 in the required direction.

The driven gear 33 meshes with the drive gear 37 to be driven during the rotation of the drive gear 37 and axially rotates the angle adjuster 55 in the direction of the arrow z.

The lower portion of the driven gear 33 is provided with an angle adjusting device 55 for generating a rotation torque.

The angle adjusting device 55, the support casing 39 is fixed to the lower portion of the driven gear 33, and the upper pulley 41 is spaced apart vertically in the receiving space (39c) of the support casing (39). And a belt 45 connecting the lower pulley 43 and the upper and

lower pulleys

41 and 43, and a belt positioned at the lower end of the lifting rod 39 to connect the lifting rod 39 and the belt 45. It comprises a fixing bracket 25 and a link unit installed at the rear of the support casing (39).

A through hole 39b having a predetermined inner diameter is provided at a portion where the driven gear 33 and the support casing 39 are coupled to each other. The through hole 39b is a passage through which the lifting rod 23 passes downward. The upper end of the elevating rod 23 extends vertically downward in a state fixed to the swivel disk 21 so that the lower end is coupled to the belt fixing bracket 25.

In particular, the geometric center point of the through hole 39b coincides with an imaginary vertical line (A in FIG. 6) rotating in the direction of the arrow z of the cutting device 11. In other words, the support casing 39 rotates on the imaginary vertical line A passing through the center point of the through hole 39b as the central axis. The vertical line (A) is also the rotation center axis of the angle adjustment port (55).

In the shape of the support casing 39, the vertical line A passes downward in front of the support casing 39. This means that the support casing 39 revolves around the vertical line A. FIG.

In addition, the vertical line A always passes through the lower end of the torch 10. In other words, the torch 10 is always at the lower end of the torch line A regardless of the angular motion. As a result, the lower end portion of the torch 10 coincides with the central axis of rotation of the angle adjuster 55, regardless of whether the torch 10 is vertically tilted from side to side.

The support casing 39 has a receiving space 39c which is open forward. The accommodating space 39c accommodates the upper pulley 41, the lower pulley 43, and the belt 45, and has a bracket guider 39d on the bottom surface thereof.

The bracket guider (39d) is a guide member extending in the vertical direction to guide the lifting movement of the belt fixing bracket (25).

The belt fixing bracket 25 is slidably supported by the bracket guider 39c and is fixed to the belt 45 through the belt fixing part 25a. Therefore, when the lifting rod 23 moves up and down by the operation of the lifting induction motor 17a, the upper and

lower pulleys

41 and 43 rotate.

The pulley shafts (49b in Fig. 6) of the upper and lower pulleys (41, 43) also serve as the rotation shaft of the T link 49 of the link unit. In other words, it acts as a link drive shaft and also functions as an electric shaft for transmitting torque for rotating the T link 49 left and right.

The link unit is located behind the support casing 39 but fixed to the pulley shaft 49b, and a pair of I links 47a connected to the T link via a connecting pin 49a. , 47b).

The T-link 49 takes the form of an approximately T letter, rotates by receiving a rotational torque from the pulley shaft 49b, and is a connecting link for lifting and lowering the I-

links

47a and 47b in mutually opposite directions.

The I-

links

47a and 47b extend vertically and have parallel structures, and are connected by two T-links 49.

In addition, as will be described later, the two I-

links

47a and 47b move up and down in the opposite direction by the action of the T-link 49. For example, in the drawing, the left I-link 47b is raised when the right I-link 47a is lowered, while the left I-link 47b is lowered when the right I-link 47a is raised.

In addition, a torch tilting link 51 is provided at lower ends of the I-

links

47a and 47b. The torch tilting link 51 is a member having a torch holder 53, and both ends thereof are linked to I links 47a and 47b on both sides through a connecting pin 51a. The torch tilting link 51 tilts the torch 10 which is inclined to the left and right during the lifting movement of the I-

links

47a and 47b. It has been mentioned that the lower end of the torch does not deviate from the central axis of rotation of the angle adjuster 55 whether the torch 10 is vertical or inclined.

The torch holder 53 supports the torch 10 in a state of being fixed to the torch tilting link 51. In particular, the torch 10 is rotatable in a state accommodated in the torch holder 53. Therefore, for example, even if the torch lead 10a is fixed to the lead holder (29a of FIG. 3), the angle adjusting device 55 may rotate as much as possible. Even if the angle adjuster 55 is axially rotated, the torch lead 10a is not twisted.

6A and 6B are diagrams for explaining the operation principle of the angle adjuster 55 shown in FIG.

Prior to the explanation of the principle of operation, the structure of the T link 59 will be described. The T link 59 has a rotating part 49d whose lower end rotates using the pulley shaft 49b as a rotating shaft, and the rotating part 49d. It consists of the connection part 49c which is integral with the extended end part of the eastern part 49d, and extended in the direction orthogonal to the longitudinal direction of the rotation part 49d.

The pivoting portion 49d is connected to the longitudinal center of the connecting portion 49c. In addition, both ends of the connecting portion 49c are connected to the I-

links

47a and 47b on both sides through the connecting pin 49a.

6A, the I-

links

47a and 47b on both sides are positioned at the same height. Therefore, the connecting portion 47c and the torch tilting link 51 are horizontal. In addition, the torch 10 supported by the torch tilting link 51 is vertically positioned. In particular, the lower end of the torch 10 coincides with the vertical line A. FIG.

In this state, when the lifting induction motor (17a of FIG. 2) is driven, the lifting rod 23 moves in the vertical direction in which the lifting rod 23 moves up and thus the T-link rotates in either direction.

Referring to FIG. 6B, it can be seen that the T-link 49 rotates clockwise in the drawing using the pulley shaft 49b as the rotation shaft. Since the pulley shaft 49b is constrained by the support casing 39, only the shaft rotation is possible and cannot move up, down, left, and right.

At any rate, as shown in FIG. 6B, as the T-link 49 rotates clockwise, the I-

links

47a and 47b move to the side of the vertical line A as a whole, and the one-side I-link 47a is raised. , The other side I-link 47b is lowered. At this time, it is natural that the torch tilting link 51 is also inclined at the same angle as the connecting portion 49c.

In addition, it can be seen that the lower end of the torch 10 is still coincident with the vertical line (A). This operation is also the same when the T link 49 is rotated in the opposite direction.

7 and 8 are diagrams for explaining the overall operation of the cutting device 11 shown in FIG.

7 shows the holder case 19b and the belt fixing bracket 25 descending to the maximum by the action of the lifting induction motor 17a. This is also a state where the upper and

lower pulleys

41 and 43 are rotated in the direction of the arrow s.

As the upper and

lower pulleys

41 and 43 rotate, the T-link 49 behind the support casing 39 rotates clockwise in the drawing, one side I-link 47a is raised and the other side I-link 47b is lowered. Let's do it. Accordingly, the torch tilting link 51 is also inclined in the corresponding direction, and the torch 10 is angularly moved.

In this state, the cutting device 11 is moved and the driven gear 33 is rotated to move the lower end of the torch 10 along the cutting line of the iron plate to perform cutting.

As shown in FIG. 8, in order to tilt the torch 10 in the opposite direction, the holder case 19b and the belt fixing bracket 25 are raised through the elevating induction motor 17a. Through this ascending process, the upper and

lower pulleys

41 and 43 rotate in the direction of the arrow t, and the I links 47a and 47b are moved to the left of the support casing 39 in the drawing.

As the I-

links

47a and 47b move to the left side, one side of the I-link 47a is lowered and the other side of the I-link 47b is raised. Accordingly, the torch tilting link 51 is also inclined in the corresponding direction to support the torch 10 in an inclined state. In this state, the lower end of the torch 10 is moved along the cutting line of the iron plate, and the cutting continues.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

Claims

A lifting unit lifting and lowering by the driving unit while being supported by the frame;

A rotational force generating unit connected to the lifting unit and driven to the lifting unit to generate a rotational force;

A link unit linked to the rotational force generating unit and converting the rotational force transmitted from the rotational force generating unit into linear motion;

A tilting link connected to the link unit and being tilted by receiving an exercise force from the link unit;

Torch angle adjustment device characterized in that it comprises a torch holder for supporting the torch in a state mounted to the tilting link.
The method of claim 1,

The lifting unit;

A lifting body which receives power from the driving unit and moves up and down within a predetermined range, and a lifting rod extending downward in a fixed state to the lifting body and connected to the rotational force generating unit,

The rotational force generating unit;

Torch angle adjustment device characterized in that it comprises one or more link drive shaft to rotate in conjunction with the lifting movement of the lifting rod.
The method of claim 2,

The rotational force generating unit;

A support casing provided under the frame,

An upper pulley and a lower pulley spaced apart vertically in the support casing;

A belt for connecting the upper pulley and the lower pulley to rotate the upper pulley and the lower pulley during the lifting movement of the lifting rod in combination with the lifting rod,

The link driving shaft is a torch angle control device, characterized in that the pulley shaft for supporting the upper pulley and the lower pulley and transmits the rotational force of the upper and lower pulleys to the link unit.
The method of claim 3, wherein

The link unit is;

A pair of vertically extending I-links spaced parallel to each other,

Torch angle control device characterized in that it comprises a connecting link that is rotated by receiving the rotation torque from the pulley shaft to be connected to the I-link on both sides through the connecting pin.
The method of claim 4, wherein

The connection link;

Rotating part that rotates using the pulley shaft as a rotating shaft and extends in a direction orthogonal to the longitudinal direction of the rotating part, the both ends of which are connected to I links on both sides through connecting pins. Torch angle adjustment characterized in that it comprises a connecting portion.
The method of claim 5,

The tilting link is connected so that both ends thereof are pivotable to the lower end of the I-link through a connecting pin.

The torch holder is torch angle adjustment, characterized in that located in the center between the connecting pin and the connecting pin.
A lifting unit which is lifted and lowered by the driving unit while being supported by the frame, and is installed to be axially rotatable in the lower portion of the frame, and a rotating force generating unit which generates rotational force by following the lifting movement of the lifting unit; And a link unit for converting the rotational force transmitted from the rotational force generating unit into a linear motion, a tilting link connected to the link unit and receiving a movement force from the link unit, and a tilting link, and a torch supporting the torch in a state of being mounted on the tilting link. A torch angle adjuster including a holder;

An axial rotation means installed at a lower portion of the frame to axially rotate a rotation force generating unit;

Located in the frame, a cutting device connected to the rear end of the torch and supporting a flexible torch lead extending in the longitudinal direction, including a lead lifting unit for lifting the torch lead in conjunction with the angular movement of the torch .
The method of claim 7, wherein

The lead lift unit;

A vertical rod extending vertically and fixed to the frame;

A lead holder supported to move up and down on a vertical rod in combination with a portion of the torch lead;

Cutting device comprising a holder position adjusting portion for adjusting the height of the lead holder.
The method according to claim 7 or 8,

The lifting unit;

A lifting body which receives power from the driving unit and moves up and down within a predetermined range, and a lifting rod extending downward in a fixed state to the lifting body and connected to the rotational force generating unit,

The rotational force generating unit;

Cutting device characterized in that it comprises at least one link drive shaft to rotate in conjunction with the lifting movement of the lifting rod.
The method of claim 9,

The rotational force generating unit;

A support casing provided under the frame,

An upper pulley and a lower pulley spaced apart vertically in the support casing;

A belt for connecting the upper pulley and the lower pulley to rotate the upper pulley and the lower pulley during the lifting movement of the lifting rod in combination with the lifting rod,

The link driving shaft is a cutting device, characterized in that for supporting the upper pulley and the lower pulley pulley shaft for transmitting the rotational force of the upper and lower pulley to the link unit.
The method of claim 8,

The link unit is;

A pair of vertically extending I-links spaced parallel to each other,

Receiving a rotational torque from the pulley shaft to rotate, the cutting device characterized in that it comprises a connecting link rotatably connected to the I-links on both sides through a connecting pin.
The method of claim 11,

The connection link;

Rotating part that rotates using the pulley shaft as a rotating shaft and extends in a direction perpendicular to the longitudinal direction of the rotating part, the both ends of which are connected to I links on both sides through connecting pins. Cutting device characterized in that it comprises a connection.
The method of claim 12,

The tilting link is connected so that both ends thereof are pivotable to the lower end of the I-link through a connecting pin.

The torch holder is a cutting device, characterized in that located in the center between the connecting pin and the connecting pin.