KR101554923B1

KR101554923B1 - Rotary cutting apparatus

Info

Publication number: KR101554923B1
Application number: KR1020150070487A
Authority: KR
Inventors: 박승현; 이정인; 유성호
Original assignee: (주) 삼영메탈; 이정인; 유성호
Priority date: 2015-05-20
Filing date: 2015-05-20
Publication date: 2015-09-22

Abstract

The present invention relates to a spindle motor, comprising a base frame supported on an upper portion of a workpiece, a circular table provided on an upper portion of the base frame, a main frame mounted on the circular table and rotating around the circular table, And a cutting unit attached to a lower end of the spindle for cutting the surface of the workpiece to a predetermined depth by a rotational force provided from the spindle motor.

Description

[0001] ROTARY CUTTING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cutting apparatus and, more particularly, to a cutting apparatus for cutting a surface of a steel plate relating to a welding tool to provide parts such as a ring gear or a gear bearing gear of an outer diameter or an inner diameter, The present invention relates to a rotary cutting apparatus.

Special vehicles such as high-priced ladder cars and specially equipped vehicles are equipped with separate devices for rotating the ladder or the working machine on top of the enemy. Typically, the special vehicle is equipped with a ring gear to smoothly rotate the upper working machine.

Particularly, a ring gear installed in a special vehicle must be maintained in a planar precision so that a working machine installed on the bearing can easily operate.

A large ring gear is mounted between the upper part and the lower part of the loading box because the size of the working machine mounted on the upper part of the loading box of the vehicle is very large and heavy. When the ring gear is welded, deformation and distortion of the bearing slide surface occurs due to thermal deformation of the ring gear. Therefore, most of the bolts are fastened with a large amount of precision. .

Nevertheless, in the current situation, a ring gear is attached to a deformed or warped surface of a steel plate with respect to a weld, without any surface processing, and a working machine is attached thereon.

Accordingly, a work machine failure may occur during operation, which leads to a safety accident.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rotary cutting apparatus capable of cutting a ring gear mounting surface provided in a special vehicle.

In order to solve the above-described problems, the present invention provides a ring gear comprising: a base frame supported on a workpiece on which a ring gear is mounted; A circular table installed on an upper portion of the base frame; A main frame installed on the circular table and rotating about the circular table; A spindle installed at one end of the main frame; A spindle motor installed in the main frame to provide power for rotating the spindle; And a cutting unit attached to a lower end of the spindle and cutting the surface of the workpiece to a predetermined depth by a rotational force provided from the spindle motor.

The rotary cutting device may further include a spindle belt formed between the spindle motor and the spindle and providing power of the spindle motor to the spindle.

The rotary cutting apparatus may further include a rotating roller unit installed on a side surface of the main frame to rotate the main frame while rotating along an outer circumferential surface of the circular table.

The rotary cutting device further includes a frame coupling portion provided at a lower portion of the main frame to support the main frame, and is coupled to the frame coupling portion, separates the frame coupling portion from the circular table, And at least one slide roller installed to rotate along the outer circumferential surface.

Wherein the rotating roller unit comprises: a main roller rotated along an outer peripheral surface of the circular table; A rotation motor for transmitting rotational force to the main roller; And a roller body having the main roller and the rotating motor mounted thereon and attached to the side surface of the main frame.

The rotating roller unit may further include a guide roller attached to a front end of the roller body to guide the main roller.

Wherein the circular table comprises an annular fixed plate; And an annular rotating plate rotating around the fixing plate.

The rotary cutting device may further include a fixing table fixed to the base frame and coupled with the fixing plate.

The rotary cutting device may further include a frame coupling portion coupled to the rotary plate at a lower portion of the main frame.

In the rotary cutting device, a first tooth is formed on the outer circumferential surface of the fixing plate, and a second tooth engaging with the first tooth is formed on the guide roller.

A rotary cutting apparatus according to an embodiment of the present invention is characterized in that when a rotating object is installed on a special vehicle such as a specially equipped vehicle or a ladder car, a uniform seating groove is formed on the surface of the attached object and a ring gear It is possible to secure the safety of the worker working on the ring gear by the smooth rotation of the work machine, and it is possible to improve the durability by eliminating the vibration generated in the work machine.

1 is a perspective view showing a rotary cutting apparatus according to a first embodiment of the present invention;
FIG. 2 is an exploded perspective view of the rotary cutting apparatus shown in FIG. 1; FIG.
3 is a perspective view showing a rotary cutting apparatus according to a second embodiment of the present invention;
Fig. 4 is an exploded perspective view of the rotary cutting apparatus shown in Fig.
5 is a perspective view showing a part of an object to be processed using the rotary cutting apparatus of the present invention.
6 is a cross-sectional view showing a cross section in which a bearing is installed on the upper part of the workpiece shown in Fig. 5;

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6 attached hereto.

FIG. 1 is a perspective view showing a rotary cutting apparatus according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view illustrating the rotary cutting apparatus shown in FIG.

1 and 2, a rotary cutting apparatus according to the present invention includes a base frame 180, a circular table 170, a main frame 110, a spindle 140, a spindle motor 120, a spindle belt 130 A slide roller 190, a rotating roller unit 200, and a cutter unit 150.

Specifically, the base frame 180 is configured to be seated on the upper surface of the workpiece 20 mounted on the vehicle 10 shown in Fig. The base frame 180 has a plurality of beams 184 formed in a lattice form. At this time, the base frame 180 is provided with four fixing bars 186a, 186b, 186c, and 186d to be mounted on the workpiece 20. The fixing bars 186a, 186b, 186c and 186d may be formed in the through holes 25 of FIG. 5 so as to be fixed to the fixing bars 186a, 186b, 186c and 186d. Can be aligned and combined.

A fixing table 182 may be formed on the base frame 180, as shown in FIG.

The fixed table 182 is joined to the lower surface of the circular table 170 in the form of a circle. The fixed table 182 is preferably formed corresponding to the shape of the circular table 170.

The circular table 170 is seated on the upper portion of the fixed table 182 and fixed through a plurality of engagement holes 188 formed in the fixed table 182. The circular table 170 may be formed such that a part of the outer peripheral surface thereof protrudes so that the slide roller 190 can be mounted.

The frame coupling part 115 is installed at the lower part of the main frame 110 in the main frame 110.

The main frame 110 supports the spindle 140 and the rotating roller unit 200. The main frame 110 has a plurality of frames coupled in a hexahedron shape. The motor mounting portion 112 may be formed on the upper surface of the main frame 110 so that the spindle motor 120 is inserted and fixed. A space may be formed in the main frame 110 to accommodate the spindle belt 130 therein.

The spindle belt 130 is formed between the rotating shaft 125 of the spindle motor 120 and the spindle 140 so that the rotational force of the rotating shaft 125 is transmitted to the spindle 140 when the spindle motor 120 is driven.

A cutter unit 150 may be coupled to one end of the main frame 110, and a rotating roller unit 200 may be coupled to a side surface of the main frame 110.

The cutter portion 150 is provided with a spindle 140 and a cutting portion 160. When the spindle motor 120 is driven, the spindle 140 receives the rotational force from the spindle belt 130 and rotates. At this time, the spindle 140 is connected to the cutting part 160 by a rotation axis to transmit the rotational force to the cutting part 160. The cutting part 160 cuts the area A of FIG. 5 on the surface of the work 20.

The slide roller 190 is engaged with the frame engaging portion 115, as described above. At this time, the slide roller 190 is mounted to the protruding section of the circular table 170 and is rotated. Since the slide roller 190 is formed to have a constant thickness, the circular table 170 and the frame engaging portion 115 can be spaced apart from each other by a predetermined distance.

The slide roller 190 allows the main frame 110 to rotate around the circular table 170 easily when the rotating roller unit 200 described below operates. 2, the number of the slide rollers 190 is not limited to four, and the number of the slide rollers 190 may be set so as to easily rotate around the circular table 170. [

The rotating roller unit 200 rotates the main frame 110 to draw an arc. The rotation roller unit 200 is installed on the side surface of the main frame 110. The rotation roller unit 200 may include a roller body 220, a rotation motor 210, a main roller 230, and a guide roller 240.

The roller body 220 receives the rotation motor 210 and is formed to be long downward to receive a rotation axis for transmitting the rotation axis of the rotation motor 210 to the main roller 230. The main roller 230 is attached to the lower side of the roller body 220 and receives rotation force of the rotation motor 210 to rotate. The main roller 230 is installed in close contact with the outer circumferential surface of the circular table 170 and rotates around the circular table 170 to thereby rotate the main frame 110. In particular, the main roller 230 moves along the outer peripheral surface of the fixing plate 176 of the circular table 170.

A guide roller 240 may be further provided at the front end of the main roller 230. The guide roller 240 may be installed at a front end of the main roller 230 when the main roller 230 rotates to detect an obstacle in advance.

Although not shown in the drawing, a controller for controlling the number of revolutions of the spindle motor 120 and the rotation motor 210 may be further included. That is, the depth of the cut surface can be changed according to the rotation speed of the rotation motor 210 and the spindle motor 120, and the cutting time can be determined. Accordingly, the controller appropriately adjusts the number of rotations of the two motors 120 and 210 according to the size and material of the workpiece 20.

In addition, the controller can stop the rotation motor 210 when an obstacle is detected in the guide roller 240. [

The rotation cutting device according to the first embodiment of the present invention rotates the main frame 110 about the circular table 170 when the rotation motor 210 of the rotation roller unit 200 is operated. At this time, the spindle motor 120 is driven to cut the workpiece 20 from the cutting portion 160 to cut the region A shown in FIG. 5 to form the seating groove 35 in which the bearing 30 is seated .

Accordingly, when an object to be rotated is installed on a special vehicle such as a specially equipped car or a ladder car, a uniform seating groove 35 is formed on the surface of the work 20. And the smooth operation of the work machine mounted on the upper part is maintained through the seating groove 35, thereby further improving the safety of the operator and the durability of the work machine.

FIG. 3 is a perspective view illustrating a rotary cutting apparatus according to a second embodiment of the present invention, and FIG. 4 is an exploded perspective view illustrating the rotary cutting apparatus shown in FIG.

FIGS. 3 and 4 are identical to FIG. 1 and FIG. 2 except that the shapes of the circular table and the rotating roller are the same, so that a duplicate description of the same elements will be omitted.

3 and 4, the rotary cutting apparatus according to the second embodiment of the present invention includes a base frame 180, a circular table 370, a main frame 110, a spindle 140, a spindle motor 120, A spindle belt 130, a rotating roller unit 300, and a cutter unit 150. [

Specifically, the rotating roller unit 300 may include a fixing plate 376 and a rotating plate 372. The rotary plate 372 rotates about the fixed plate 376. [ The fixing plate 376 is coupled to the fixing table 182 through a bolt or the like, as described above. At this time, the fixing plate 376 may be formed with a plurality of coupling holes for bolt fastening.

The rotation roller unit 300 may include a roller body 320, a rotation motor 310, a main roller 330, and a guide roller 340, as described above. The roller body 320 receives the rotation motor 310 and is formed long to receive the rotation shaft for transmitting the rotation axis of the rotation motor 310 to the main roller 330. The main roller 330 is attached to the lower side of the roller body 320 and receives rotation force of the rotation motor 310 to rotate. The main roller 330 is installed in close contact with the outer circumferential surface of the circular table 370 and rotates around the circular table 370. Accordingly, the main frame 110 is rotated by the rotation of the main roller 330. [ In particular, the main roller 330 moves along the outer peripheral surface of the fixing plate 376 of the circular table 370.

At this time, the fixing plate 376 is formed with a first tooth, and the main roller 330 is formed with a second tooth to be engaged with the first tooth. Accordingly, the second teeth formed on the main roller 330 are engaged with the first teeth while rotating, so that no slip occurs during rotation.

A guide roller 340 may further be provided at the front end of the main roller 330. As described above, the guide roller 340 may be installed at a front end of the main roller 330 when rotating the main roller 330 to detect an obstacle in advance.

The rotation cutting apparatus according to the second embodiment of the present invention rotates the main frame 110 about the circular table 370 when the rotation motor 310 of the rotation roller unit 300 is operated. At this time, the spindle motor 120 is driven to cut the workpiece 20 from the cutting portion 160 to cut the region A shown in FIG. 5 to form the seating groove 35 on which the bearing 30 shown in FIG. 6 is seated. Can be formed. At this time, the first tooth formed around the fixing plate 376 of the circular table 370 and the second tooth of the main roller 330 do not generate slip when the main frame 110 rotates, so that the cutting surface can be uniformly formed have.

110: main frame
112: motor mounting portion
115:
120: Spindle motor
130: spindle belt
140: spindle
150:
160:
170, 370: circular table
172, 372:
174: Connection hole
176, 276: Fixing plate
180: Base frame
182: Fixed table
184: Beam
186a, 186b, 186c, 186d: fixed bar
188: Coupling hole
190: Slide roller
200, and 300:
210, 310: Rotary motor
220, 320: Roller body
230, 330: main roller
240, 340: guide rollers

Claims

A base frame supported on a workpiece on which the ring gear is mounted;
A circular table installed on an upper portion of the base frame;
A main frame installed on the circular table and rotating about the circular table;
A spindle installed at one end of the main frame;
A spindle motor installed in the main frame to provide power for rotating the spindle;
A spindle belt formed between the spindle motor and the spindle and providing power of the spindle motor to the spindle;
A cutting unit attached to a lower end of the spindle and cutting a surface of the workpiece to a predetermined depth by a rotational force provided from the spindle motor;
A rotating roller unit installed on a side surface of the main frame to rotate the main frame while rotating along an outer circumferential surface of the circular table;
A frame engaging portion provided under the main frame and supporting the main frame; And
And a controller for controlling the number of revolutions of the spindle motor,
The rotating roller portion
A main roller that rotates along an outer peripheral surface of the circular table;
A rotation motor for transmitting rotational force to the main roller;
A roller body having the main roller and the rotating motor mounted thereon and attached to a side surface of the main frame; And
And a guide roller attached to a front end of the roller body to detect an obstacle installed at a front end of the main roller when the main roller rotates,
Wherein the controller controls the rotation speed of the rotation motor and stops the rotation motor when an obstacle is detected on the guide roller.

delete

The method according to claim 1,
Further comprising at least one slide roller coupled to the frame engaging portion and spaced apart from the frame engaging portion and the circular table, the at least one slide roller being installed to rotate along an outer circumferential surface of the circular table.

delete

The method according to claim 1,
The circular table
An annular fixed plate; And
And an annular rotating plate rotating around the fixed plate.

8. The method of claim 7,
And a stationary table fixed to the base frame and coupled with the stationary plate.

8. The method of claim 7,
And a frame engaging portion coupled to the rotating plate at a lower portion of the main frame.

8. The method of claim 7,
A first tooth is formed on an outer circumferential surface of the fixing plate,
And a second tooth engaging with the first tooth is formed on the main roller.