KR101248965B1 - Cutting machine for forming slope in circular, elliptical or curved shaped plate by gas - Google Patents

Abstract

PURPOSE: A non-powered type curved, circular, or elliptical chamfer gas cutting machine is provided to chamfer not only a chamfered object(M) with a circle-shaped surface for chamfering but also a chamfered object with any irregularly shaped surface for chamfering at a predetermined angle and depth. CONSTITUTION: A non-powered type curved, circular, or elliptical chamfer gas cutting machine comprises a main body(1) of the gas cutting machine, a movable driver unit, a torch angle and distance adjustment unit(30), and a level maintenance weight. A first wheel(10) of the movable drive unit is mounted to be aligned at an angle(θ) becoming wider in the moving direction to an extension line connecting the rotational center points of a first guide roller(20) and a second guide roller(22). The level maintenance weight is mounted to be connected through an axis to the first guide roller to rotate together with the rotating first guide roller, and has a bottom surface moving with the contact to the upper surface of a chamfered object.

Description

CUTTING MACHINE FOR FORMING SLOPE IN CIRCULAR, ELLIPTICAL OR CURVED SHAPED PLATE BY GAS}

The present invention relates to a chamfering gas cutter for machining or chamfering the machined edge of a processing member, such as a steel plate processed into a specific shape, for example, in particular of a non-powered drive type driven according to the pressure of the gas Chamfering gas cutting machine.

Chamfering generally refers to machining steel, non-ferrous, or resin corners to slope. For example, as shown in the photographs shown in FIGS. 1 and 2a to 2i showing the overall appearance of a chamfering gas cutter according to a preferred embodiment of the present invention, the inner edge portion processed into a specific shape, here an elliptical shape, at an oblique angle, That is, it means the work to be processed into a slope.

Conventional chamfering work can be chamfered to a desired angle by manipulating the instrument in the case of a circular chamfered object having a clear reference point. However, when the chamfering object is an elliptical shape or an irregular curved shape instead of a circle, There was an uneven area. In addition, in the case of the elliptical shape or the irregular curved shape, there is no reference point, and automation is virtually impossible.

Hereinafter, the patent documents of the present applicant and other patent documents relating to the present invention are presented.

Korean Utility Model Registration No. 20-0145843, filed on August 21, 1996 and registered on February 23, 1999 (named "Automatic Gas Cutting Machine"); Korean Utility Model Model No. 20-0145842, filed on August 21, 1996 and registered on February 23, 1999 (named "Automatic Gas Cutting Machine"); Korean Patent No. 10-0232381 filed on September 18, 1996 and registered on September 6, 1999 (named "Automatic Gas Cutting Machine"), Korean Patent No. 10-0267018 filed on December 29, 1997 and registered on June 30, 2000 (named "Automatic Gas Cutting Machine"), Korean Utility Model Model No. 20-0172716, filed on December 29, 1997 and registered on December 14, 1999 (named "Automatic Gas Cutting Machine"); Republic of Korea Patent No. 10-0931268, filed on June 24, 2009 and registered on December 3, 2009 (name of the invention "power generator and welding cart using the same") Republic of Korea Patent No. 10-0608293, filed February 14, 2006 and registered on July 26, 2006 (name of the invention "improved durability of the guide roller")

The present invention has been made to solve the problems of the prior art, an object of the present invention is to be chamfered driven by an automated non-powered method capable of chamfering not only circular but also elliptical, irregular curved portion at a desired angle and depth It is to provide a gas cutting machine.

In order to achieve the above and other objects,

In the chamfering gas cutting machine of the non-powered drive type driven according to the pressure of the gas,

The body of the gas cutter;

A first wheel which is directly or indirectly coupled to the main body and driven on the upper surface of the chamfering object; A first guide roller driven at the side of the chamfered object of the chamfered object and a second guide roller moving along the side of the chamfered object of the chamfered object along the guide roller; And

A gas torch for chamfering a chamfered object at a predetermined slope angle is vertically rotatably mounted on one end of the main body and the other end of the gas torch is mounted so as to move along a side surface of the side of the chamfered object A torch angle and a distance adjusting unit provided with a torch distance adjusting unit,

The first wheel provides an chamfered gas cutter of a non-powered driving method, characterized in that the first wheel is mounted so as to be oriented at an angle extending in the travel direction with respect to the extension line connecting the rotation center point of the first guide roller and the second guide roller.

In a preferred embodiment of the present invention, the first guide roller is axially coupled to be mounted to rotate together in accordance with the rotation of the first guide roller, the bottom surface is configured to move in contact with the upper surface of the chamfering object And a weight for level holding.

In a more preferred embodiment of the present invention, a tension spring is mounted to the rear of the torch distance adjustment unit such that the torch distance adjustment unit is in close contact with the chamfer side of the chamfering object.

In a still more preferred embodiment of the present invention, the magnet is mounted so that the first guide roller or the second guide roller or both of them are in close contact with the chamfer side of the chamfering object. At this time, the magnet is disposed on the outside of the extension that is rotatably extended to the outside of the second guide roller with respect to the member connected to the shaft of the first guide roller so that the second guide roller is the surface of the chamfering object It may be configured to be in close contact with the mounting side.

In addition, in the present invention, preferably, the auxiliary second wheel is rotatably mounted horizontally behind the first wheel.

In the present invention, a magnet is mounted inside the first guide roller. A weight driven horizontally is mounted on the chamfered side of the second guide roller, and a magnet is mounted inside the weight.

According to the present invention, there is an effect that the chamfered portion of the to-be-inspected object (M) can be chamfered at an angle and depth set to any irregular shape having no reference point, such as an elliptical shape or a curved shape.

1 is a perspective view schematically showing an excavated gas cutter according to one preferred embodiment of the present invention.
2A to 2I are photographs taken at various angles of a chamfering gas cutter according to one preferred embodiment of the present invention.
3 is a view showing a correlation between the wheel and the guide roller applied to the chamfering gas cutter according to one preferred embodiment of the present invention.
Figure 4 is a view showing the operation of the torch distance adjustment unit is applied to the chamfering gas cutter according to an embodiment of the present invention.
5 is a view showing an example of the operation of the magnet applied to the chamfering gas cutter according to an embodiment of the present invention.
6 is a view showing another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to the following illustrative drawings. In describing the present invention, a description of known functions or configurations will be omitted for the sake of clarity of the present invention. Also, like reference numerals denote like elements throughout the specification.

In this specification, only the chamfered gas cutter driven by a gas pressure is described as a non-power source, but a chamfered gas cutter driven by another power source is also within the scope of the present invention. A chamfering gas cutter driven by a gas pressure supplied to the tundish, or a chamfering gas cutter driven by another power source, is presented in a previously filed or published application or registered registered patent or registered utility model by the present applicant . As an example, Korean Utility Model No. 20-0145843 filed on August 21, 1996 and registered on Feb. 23, 1999 (entitled "Automatic Gas Cutting Machine"), filed on August 21, 1996 Registered in Korean Patent Registration No. 20-0145842 (design name "automatic gas cutting machine") registered on Feb. 23, 1999, registered in Korea on September 18, 1996 and registered on September 6, 1999 Korean Patent No. 10-0267018 filed on December 29, 1997 and filed on June 30, 2000 (entitled "Automatic Gas Cutting Machine"), No. 20-0172716 (entitled "Automatic Gas Cutter") filed on December 29, 1997 and registered on December 14, 1999, and filed on June 24, 2009 and published in 2009 Korean Patent No. 10-0931268 (entitled "Power Generating Device and Welding Bogies Using the Same") registered on December 3, Number, and all of patent document are included in the invention. Therefore, it should be understood that the non-power-driven driving method or the non-power-driven driving method referred to in the present specification includes the method disclosed in the above-mentioned patent documents unless otherwise described. Therefore, description of the method of driving without power supply will be omitted. However, it is to be understood that the present invention is not limited to the manner in which the present invention is driven by a non-power source, and the manner in which it is driven in another way falls within the scope of the present invention. That is, it should be understood that the present invention is not limited to a method driven by a non-power source or a power source, but a slope is formed on a surface processed into an elliptical or irregular curve as well as a circular shape.

1 to 5 show a chamfering gas cutter according to one preferred embodiment of the present invention.

First, referring to FIG. 1, the chamfering gas cutter according to one preferred embodiment of the present invention includes a driving source driven by a power source or a non-power source. The manner of being driven by the power source is well known in the art, and the manner of being driven by a non-power source is exemplified in a registered patent or registration utility application filed and registered by the applicant of the present invention, It will be omitted.

In addition, the chamfering gas cutting machine according to one preferred embodiment of the present invention, as shown in Figure 1, the main body 1 forming the body of the gas cutting machine, a mobile drive that operates by a power source or no power source and the chamfering of the workpiece to be chamfered And a torch distance adjuster that allows the torch to be positioned at a predetermined distance with respect to the predetermined portion. The movable drive unit includes a first wheel, a second wheel, a first guide roller and a second guide roller which will be described later. Each component will be described in more detail below.

The lower part of the main body 1 is equipped with the first guide roller 20 which is operated by the gear (not shown) which is driven by gas pressure especially as shown in FIG. In FIG. 1, the first guide roller 20 is shown as an imaginary line. The first guide roller 20 is located forward with respect to the traveling direction of the chamfering gas cutter. In addition, the first guide roller 20 is disposed to be driven at the side of the chamfering portion of the chamfering object. In Fig. 1, reference symbol M denotes a chamfered object as a base material. In the present invention, an iron plate having a constant thickness is exemplified as the to-be-watched object (M). At least one rubber ring 20a is provided on the circumferential surface of the first guide roller 20. The rubber ring 20a serves to increase friction with the chamfer side of the chamfered object.

The rear of the first guide roller 20 is mounted with a second guide roller 22 configured to move along the first guide roller 20 at the side of the chamfered object of the chamfered object. The circumferential surface of the second guide roller 22 is preferably provided with a rubber ring 20a to increase the driving force due to the frictional force at the side of the chamfered portion of the chamfering target M.

In addition, the first wheel 10 as shown in the virtual line in Fig. 1 is mounted on the main body 1 belonging to the upper surface of the chamfering object (M). At this time, the first wheel 10 is fixedly coupled to the body (1). A description of the coupling method and the traveling direction position with respect to the first wheel 10 will be described later with reference to FIG. At the rear of the first wheel 10, the auxiliary second wheel 12 for maintaining the overall horizontal is mounted.

1, a torch angle and a distance adjusting unit 30 are mounted on the main body 1 so as to be rotatable from side to side with respect to the main body 1.

The torch angle and distance adjuster 30 includes a vertical link portion 31a extending vertically and a horizontal link portion 31b extending horizontally with respect to the vertical link portion 31a.

As shown in FIG. 1, a torch 32 is vertically rotatably provided at a lower portion of the vertical link portion 30a. By this vertical rotation of the torch 32, the chamfering angle with respect to the chamfered portion of the chamfered object M can be arbitrarily selected by the operator. In order to more precisely adjust the angle of the torch 32, a protruding protractor 36 is attached to the torch 32 so as to be visually recognizable.

A bar is extended vertically downward from one end of the horizontal link portion 31b and a lower end of the bar is brought into contact with the side surface of the chamfered object M to form a torch 32, And a torch distance adjusting unit 35 for adjusting the distance between the chamfered portions of the mask M to be constant. Along with this the rear of the torch angle and distance adjuster 30 is provided with a tension spring 39, in particular as shown in FIG. 4. That is, the torch angle and distance adjustment 30 by the tension spring 39 has the property of moving in the direction in which the tension spring 39 contracts, the torch distance adjustment unit 35 described above Is placed in the resistance position so that the distance of the torch 32 is positioned at a desired distance. Their positional relationship is well illustrated in FIG.

2A to 2I show various views of the chamfering gas cutters according to one preferred embodiment of the present invention, taken at various angles or enlarged. This will identify each component of the chamfering gas cutter according to one preferred embodiment of the present invention more clearly.

Referring back to FIG. 3 together with FIG. 1, in the present invention, the first wheel 10 is formed on an extension line N in which the first guide roller 20 and the second guide roller 22 connect the rotation center points. It is arranged so as to be oriented at a constant angle outward in the direction of travel (L). That is, as shown in FIG. 3, when the advancing direction of the first wheel 10 is referred to as L and the parallel line thereof is referred to as L ′, the rotation center point of the first guide roller 20 and the second guide roller 22 is shown. The first wheel 10 should be disposed such that an angle (theta) formed by N, which is a continuous extension line, exceeds 0. At this time, the theta value is preferably set to have a value of more than 0 degrees to less than 90 degrees, preferably 5 to 45 degrees. More preferably, the theta value is set to have a value of 5 degrees to less than 30 degrees.

As such, the first wheel is installed to be oriented outwardly at a predetermined angle in the traveling direction of the first wheel 10 with respect to the extension line N connecting the center of rotation of the first guide roller 20 and the second guide roller 22. The first guide roller 20 is closer to the chamfer side of the chamfering object (M) by the property that the 10 is to be woven, so that the portion to be chamfered can be chamfered more accurately.

In addition, in the present invention, as described above, the distance of the torch 32 is more reliably adjusted by the tension spring 39 provided so that a tension force is generated behind the torch angle and the distance adjusting part.

In addition, in the present invention, as shown in FIG. 5 together with FIG. 1, the magnet 42 is mounted to closely contact the first guide roller or the second guide roller or both to the chamfer side of the chamfering object. .

In this embodiment, the magnet 42 is a pushing member (40) extending rotatably to the outside of the second guide roller 22 with respect to the member connected to the shaft of the first guide roller (20). It is arranged on the outside of the second guide roller 22 is configured to be in close contact with the chamfer side of the chamfering object (M).

In addition, in the present invention, as shown in FIGS. 1 to 5, the weight body 24 is provided on the first guide roller 20 corresponding to the drive shaft for the purpose of maintaining the overall level of the chamfering gas cutter and increasing the driving force. In particular, the horizontal holding weight 24 is axially coupled with the first guide roller 20 as shown in FIG. 1 and mounted to rotate together with the rotation of the first guide roller 20. At this time, the bottom surface thereof is configured to move in contact with the top surface of the chamfering object (M). More preferably, a magnet (not shown) is mounted inside the horizontal weight body 24 so that contact with the upper surface of the chamfering object M can be increased.

In addition, in a still more preferred embodiment of the present invention, as shown in Figure 6, the rear horizontal maintenance weight 27 of a relatively low weight may be provided than the front horizontal maintenance weight 24, A magnet (not shown) may also be mounted therein to increase the contact with the upper surface of the chamfering object M. FIG.

The chamfered gas cutter according to one preferred embodiment of the present invention having such structure, as shown in FIG. 1, for example, LPG, high-pressure oxygen and low-pressure oxygen are regulated through respective nozzles, The nozzles shown by reference numerals 2a, 2b and 2c through the nozzles indicated by reference numerals 4a, 4b and 4c, together with the torch 32, so that the operator can chamfer the desired region more precisely .

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It can be understood that it is possible.

1: main body
2a, 2b, 2c, 4a, 4b, 4c:
10: first wheel
12: (secondary) second wheel
20: first guide roller
22: second guide roller
24: weight for level holding
30: torch angle and distance adjuster
32: Torch
35: torch distance adjustment section
36: protractor
40: pushing member
42: magnet
M: chamfered object as a base material

Claims (8)

In the chamfering gas cutting machine of the non-powered drive type driven according to the pressure of the gas,
The body of the gas cutter;
A first wheel which is directly or indirectly coupled to the main body and driven on the upper surface of the chamfering object; A first guide roller driven at the side of the chamfered object of the chamfered object and a second guide roller moving along the side of the chamfered object of the chamfered object along the guide roller; And
A gas torch for chamfering a chamfered object at a predetermined slope angle is vertically rotatably mounted on one end of the main body and the other end of the gas torch is mounted so as to move along a side surface of the side of the chamfered object A torch angle and a distance adjusting unit provided with a torch distance adjusting unit,
The first wheel is mounted so as to be oriented at an angle θ in the traveling direction with respect to the extension line connecting the rotation center point of the first guide roller and the second guide roller,
Is coupled to the first guide roller is mounted to rotate together in accordance with the rotation of the first guide roller, wherein the bottom surface comprises a weight for maintaining the horizontal structure configured to move in contact with the upper surface of the chamfering object Chamfering gas cutting machine of a non-powered drive system characterized in that. delete The method according to claim 1,
And a tension spring is mounted to the rear of the torch distance adjuster such that the torch distance adjuster is in close contact with the side of the chamfer of the chamfered object. The method according to claim 1,
The chamfering gas cutter of the non-powered driving method, characterized in that the magnet is mounted so that the first guide roller or the second guide roller or both of them are in close contact with the chamfer side of the chamfering object. The method of claim 4,
The magnet is disposed outside the pushing member which is rotatably extended to the outside of the second guide roller with respect to the member connected to the shaft of the first guide roller so that the second guide roller is a chamfered portion of the chamfering object Chamfering gas cutting machine of the non-powered drive system, characterized in that the close contact with the side. The method according to any one of claims 1 and 3 to 5,
Clamping gas cutter of the non-powered driving method, characterized in that the auxiliary second wheel is mounted to the rear of the first wheel so as to rotate horizontally. The method according to any one of claims 1 and 3 to 5,
A chamfered gas cutter of a non-powered drive method, characterized in that a magnet is mounted inside the first guide roller. The method according to any one of claims 1 and 3 to 5,
The chamfered gas cutter of the second guide roller is mounted on the chamfered side of the horizontal weight driven, the magnet is mounted inside the weighted body, characterized in that the chamfered gas cutter of the non-powered drive type.

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