KR20030012538A - Apparatus for cutting pipe with copying after correlation line - Google Patents

Abstract

PURPOSE: A cutting device of a pipe is provided to cut the pipe in a profile shape by fixing the cutting device by using a pantograph. CONSTITUTION: A material fixing portion(100) fixes a pipe cut material(10) by penetrating and adjusting a cutting length. A material rotating portion(102) rotates the material fixing portion. A profiling portion(103) comprises a pantograph(33) to imitate a profile by moving through a profile driving shaft(30). The profile driving shaft is fixed by inserting the outer circumference of a cylindrical driving shaft(17). A material cutting portion(104) comprises a cutting torch(41) to be fixed in the end of the pantograph. Thereby, a pipe is automatically cut without any dimension error by the wanted profile. Therefore, the productivity is improved.

Description

Pipe cutting device capable of cutting correlated lines {APPARATUS FOR CUTTING PIPE WITH COPYING AFTER CORRELATION LINE}

The present invention relates to a pipe cutting device capable of cutting a corrugated line, and more particularly, to automatically cut a pipe inserted into a same correlated line shape by using a pantograph that mimics a correlated line according to the rotation of a drive shaft in which a corrugated line guide groove is formed. It relates to a pipe cutting device capable of cutting the correlation line.

Bending device (7) facility for producing the primary material (Bloom) 1 in the performance factory, as shown in Figure 1a, the slab 1 is passed between the rollers 4 immediately after passing through the mold of molten steel It is a core facility that is solidified from the surface gradually and solidifies from the surface while maintaining the bulging pressure generated as it passes through and separates and floats, and affects the quality of the product. The fixed pipes 5, 6 are welded and fixed at a predetermined inclination angle, and the pipe supports 2, 3 and the internal fixed pipes 5, 6 are welded in contact with a predetermined correlation line.

The correlation line refers to a profile formed for a portion where two or more objects are in contact with each other, and the correlation line is variously changed by various variables such as an angle of contact with the shape of the object.

In general, the method of cutting the pipe in the shape of the corrugated line, as shown in Figure 1b, to produce a marking die (9) by developing the corresponding corrugated line (8), then rolled round pipe (10) And several operators turn the pipe 10 to mark the cut portion on the surface of the cutting material 10 with the marking pen 11.

When cutting with the manual cutting machine 12 along the marked correlation line (8), the primary member is completed, and the repeated work in the above process takes a lot of marking time and manual cutting time, manually marking and cutting As a result, there is a problem that an error occurs in the overall dimensions when manufacturing the bending device facilities due to the large deviation of the dimensions.

In addition, since the drag line of the cutting surface is rough, all the cutting surface must go through the grinder work, thereby increasing the worker's fatigue and reducing work productivity, and there is a problem that dust generated during the grinder work causes respiratory failure.

In order to solve the above problems, the present invention is fixed to the cutting material to be rotatable, and can be rotated simultaneously with the cutting material along the corrugated line guide groove when the corrugated drive shaft formed with a corrugated line guide groove formed on the outer circumference It is an object of the present invention to provide a pantograph that mimics a correlation line, and a pipe cutting device capable of cutting a correlation line capable of cutting a pipe in a shape of a correlation line imitated by a cutting torch coupled thereto.

1A is a schematic view showing a bending device in which a pipe inclined member and a vertical member are used;

1B is a schematic diagram showing a conventional method for cutting pipe slopes and vertical members;

Figure 2 is an overall perspective view of the pipe cutting device capable of cutting the correlation line according to the present invention;

3 is a combined perspective view of the pipe cutting device capable of cutting the correlation line according to the present invention;

4 is a top view and a front view of a correlation line mimicking portion and a material cutting portion constituting a pipe cutting device capable of cutting a correlation line according to the present invention;

Figure 5 is a side view of the material fixing portion constituting the pipe cutting device capable of cutting the correlation line according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: Cutting material 14,14 ': Guide roller 15: Cylindrical interlocking chuck 16: Fixed jaw

22: base 100: stock government 18: driven gear 21: T-shaped vertical fixed plate

17: cylindrical drive shaft 20: drive motor 102: material rotation 30: corrugated drive shaft

33: pantograph 103: correlating line 40: tochigo station 41: cutting torch

104: material cutting part

In order to achieve the above object, the present invention is a cylindrical interlocking chuck formed with a circumferential surface of a plurality of fixed jaws that can be fixed by penetrating the cutting material introduced through the guide roller fixed to the base side rotatable, A rack bar having a rack gear formed to adjust the cutting length of the cutting material, and a material fixing part including a pinion gear gear-engaged with the rack gear thereof;

One side is inserted into and fixed to the inner surface of the cylindrical interlocking chuck of the material fixing part, while a driven gear is formed on the other side, and a cylindrical drive shaft bearing-coupled with the through-hole of the T-shaped vertical fixing plate fixed on the base, and gear coupling with the driven gear thereof. A raw material rotating part including a driving motor in which a driving gear is axially coupled;

T-shaped vertical fixed on the base while fixing the cylindrical corrugated drive shaft formed with a corrugated line guide groove on the outer circumferential surface and the guide bar flowing along the corrugated line guide groove formed therein while being fixed by inserting the outer circumferential surface of the cylindrical drive shaft of the material rotating unit. A correlation line mimicking portion formed of a pantograph fixed to an upper surface of the fixing plate;

Corrugated line cutting is characterized by consisting of a material cutting part consisting of a rack bar penetrating through the rack bar holder formed on one end of the pantograph imitating the corrugated line and gear-coupling with the pinion gear, and a cutting torch fixed to the torch holder formed at the lower end thereof. Provide a possible pipe cutting device.

In addition, the present invention is characterized in that it is possible to be fixed to the outer circumferential surface of the cylindrical drive shaft of the material rotating portion by separating and replacing a plurality of cylindrical corrugated line drive shafts formed with various types of corrugated line guide grooves on the outer circumferential surface constituting the correlation line imitation. It provides a pipe cutting device capable of cutting the corrugated line.

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

2 is an overall perspective view of a pipe cutting device capable of cutting a corrugated line according to the present invention, and FIG. 3 is a combined perspective view of the pipe cutting device capable of cutting a correlated line according to the present invention.

As shown in Figures 2 to 3, the pipe cutting apparatus capable of cutting the correlation line according to the present invention is largely the material fixing part 100, the material rotating part 101 and the correlation line imitation part 102 and the material cutting part ( 103).

The material fixing part 100 is a pair of guide rollers 14 and 14 'fixed to the roller supports 13 and 13' so as to be rotatable on one side of the base 22 to which the apparatus is fixed and the cutting material introduced therethrough. Cylindrical linkage chuck 15 having a plurality of fixing jaws 16, which can be fixed by penetrating 10, is formed on a circumferential surface thereof, and the cutting length of the cutting material 10 penetrating the upper surface of the base 21 is adjusted. It consists of a rack bar (26) formed with a rack gear (25) geared with the pinion gear (27) while penetrating the protruding through hole (23) formed on the side of the T-shaped vertical fixing plate 21 fixed to the 5 is a side view of the material fixing part 100 having the same configuration.

The material rotating part 101 capable of rotating the cutting material 10 fixed to the material fixing part 100 has a driven gear 18 on the other side while one side is inserted into and contacted with the inner peripheral surface of the cylindrical interlock chuck 15. Cylindrical drive shaft 17 which is coupled to the through-hole 28 and the bearing 29 formed in the center portion of the T-shaped vertical fixing plate 21 is fixed on the base 22, and the gear gear 18 and its driven gear 18 It consists of a drive motor 20 fixed on one side of the base 22 of the T-shaped vertical fixing plate 21 so that the drive gear 19 is axially coupled.

Correlation line imitation unit 103 installed on the other side of the T-shaped vertical fixing plate 21 and the cylindrical drive shaft 17 of the raw material rotating part 102 is rotatably fixed to the T-shaped vertical fixing plate 21 Is inserted into the outer circumferential surface of the cylindrical drive shaft 17 while being fixed to the cylindrical correlated line drive shaft 30 formed with a corrugated line guide groove 31 on the outer circumferential surface, and a guide bar flowing along the correlated line guide groove 31 formed therein ( It consists of a pantograph 33 fixed to the upper surface of the T-shaped vertical fixing plate 21 fixed on the base 22 while fixing the 32.

The pantograph 33 is a kind of drawing device which is generally used to enlarge or reduce a figure or a map at a predetermined ratio. In the pipe cutting device capable of cutting a corrugated line according to the present invention, the pantograph 33 is formed on the cylindrical corrugated line driving shaft 30. It serves to move the trajectory of the guide bar 32 fixed to one side of the pantograph 33 to the other end of the pantograph 33 so as to be guided along the guide groove 31.

The material cutting part 104 formed at one end of the pantograph 33 of the correlation line mimicking part 103 having the above-described configuration to cut the pipe cutting material 10 in a correlation line is integral with the other end of the pantograph 33. It consists of a rack bar 39 that penetrates the pin bar gear 37 and penetrates the rack bar holder 36 formed in the form, and a cutting torch 41 fixed to the torch holder 40 formed at the lower end thereof.

Hereinafter, the effect | action of this invention is demonstrated in detail.

4 is a top view and a front view of a correlation line imitation part and a material cutting part constituting a pipe cutting device capable of cutting a correlation line according to the present invention.

As shown in Figure 2 or 4, the cutting material 10 is guided to the guide roller 14 constituting the material fixing portion 100 of the pipe cutting device capable of cutting the correlation line according to the present invention to the device Retracted, the pipe cutting material 10 is the cutting length is controlled by the rack bar 26 geared to be movable to the T-shaped vertical fixing plate 21, cutting the upper surface of the rack bar 26 A ruler 26 'is formed to facilitate the control of the length, and the cutting material 10 whose cutting length is controlled by the rack bar 26 is formed at a plurality of circumferential intervals of the interlock chuck 15. It is fixed by the fixing jaw (16), wherein the cutting material 10 is spaced up from the guide roller (14).

When the cutting material 10 is inserted and fixed by the material fixing part 100, the driving shaft 30 through which the correlation line driving shaft 30 of the correlation line imitation part 103 rotatably rotates the T-shaped vertical fixing plate 21. It is fixed in contact with the outer circumferential surface of (17), and the correlation line drive shaft 30 to be mounted at this time can be selected by mounting the correlation line drive shaft formed with the guide groove 31 of the desired correlation line shape.

When the corrugated line driving shaft 30 is mounted as described above, when the guide bar 32 fixed to the pantograph 33 is placed in contact with the guide groove 31 formed on the outer circumferential surface of the corrugated line driving shaft 30, oxygen and fuel gas are placed. The pressure gauges 47 and 48 of the gas reservoirs 49 and 50 to eject oxygen and fuel gas, ignite the cutting torch 41, adjust the flame, and then preheat the first cutting point. When the cutting material 10 is preheated to reach an appropriate temperature, high pressure oxygen is ejected to start cutting.

When the driving motor 20 of the material rotating unit 102 is operated, the driven gear 19 connected thereto is connected to the driven gear 18 and the driving shaft 17, the interlocking chuck 15, the corrugated line driving shaft 30, and the cutting gear. The material 10 rotates at the same time, and when the guide bar 32 connected to the pantograph 33 is moved left and right along the corrugated line guide groove 31 engraved on the corrugated line driving shaft 30, the pantograph 33 Cutting torch 41 is also connected to one side of the same operation from side to side, the cutting material 10 is automatically cut into the same shape as the correlation line (31).

As described above, when the cutting is completed, the flame of the cutting torch 41 is completely extinguished, and then, when the fixing jaw 16 is released and the cut material is taken out, the work is completed.

The present invention automatically cuts the pipe material to the desired correlation line, so there is no dimension error, so that the overall dimensions can be exactly matched during the manufacturing of equipment such as bending devices, and a beautiful cut surface is formed to improve work productivity through process improvement such as the award work. It can improve and reduce the worker's workload due to dust.

Claims (2)

Cylindrical interlocking chuck formed with a circumferential surface of a plurality of fixing jaws 16 that can be fixed by penetrating the cutting material 10 introduced through the guide rollers 14, 14 ′ fixed to the base 22 so as to be rotatable. 15, a rack bar 26 having a rack gear 25 formed thereon to adjust the cutting length of the cutting material 10 penetrating the same, and a pinion gear 27 geared with the rack gear 25 thereof. A material fixing part 100; One side is inserted into and fixed to the inner peripheral surface of the cylindrical interlocking chuck 15 of the material fixing part 100 while the driven gear 18 is formed on the other side, and the T-shaped vertical fixing plate 21 fixed on the base 22 penetrates. A raw material rotating part (102) consisting of a cylindrical drive shaft (17) coupling a sphere (28) and a bearing (29), and a drive motor (20) gearing with a driven gear (18) thereof; The outer circumferential surface of the cylindrical drive shaft 17 of the material rotation unit 102 is inserted and fixed, and the corrugated line guide shaft 31 is formed on the outer circumferential surface thereof, and flows along the correlated line guide groove 31 formed therein. A correlating line mimicking part 103 formed of a pantograph 33 fixed to an upper surface of the T-shaped vertical fixing plate 21 fixed on the base 22 while fixing the guide bar 32; A rack bar 39 penetrating the rack bar holder 36 formed at one end of the pantograph 33 of the correlation line imitation unit 103 to be engaged with the pinion gear 37, and a torch holder 40 formed at the lower end thereof. Pipe cutting device capable of cutting the corrugated line, characterized in that consisting of a cutting material 104 made of a cutting torch (41) fixed to. The method of claim 1, The correlating line mimicking unit 103 separates and replaces a plurality of cylindrical correlating line drive shafts 30 having various types of corrugated line guide grooves 31 formed on an outer circumferential surface of the cylindrical drive shaft 17 of the material rotating unit 100. Pipe cutting device capable of cutting the corrugated line, characterized in that fixed to the outer peripheral surface.