Laser cutting machine with centering unit

Abstract

A laser cutting machine (1) for providing cutting of a square profile (2) and comprising a chuck (10) designed to rotate and clamp and hold the square profile (2), at least one support arm (20) designed to assist in lifting the square profile (2) held by the chuck (10), a second chuck (30) that provides fixation of the square profile (2) advanced by the chuck (10) at the section where cutting is performed, and at least one cutting head (40) designed to carry out the cutting process. In order to provide centering of the square profile (2), the laser cutting machine (1) in question comprises a centering unit (50) with two sensors (51) positioned on both sides of the square profile (2) and designed to measure immediately during cutting.at least one processor (52) to which the central position of the quadrangular profile detected by the sensor (51) is transmitted, and at least one control unit (53) designed to adjust the position of the cutting head (40) according to the information transmitted by the processor (52).

Description

TECHNICAL FIELD

[0001] The present invention relates to a laser cutting machine with a centering unit for providing precise cutting of square profiles. STATE OF THE ART

[0002] Laser cutting is a technology that uses laser beams to cut metal and similar materials. In this technology, high-power laser beams are directed at the workpiece under computer control, melting, burning, or vaporizing the area exposed to the beams.

[0003] According to the prior art, pipe cutting machines maintain a predetermined distance between the second chuck and the cutting head. The chuck, which rotates within the cutting area, clamps the profile part to be cut according to its diameter and thickness. This process more easily positions the profile to be advanced and prevents the profile from slipping during rotation. Driving the profile to the area where the cutting head is positioned can be achieved by methods such as pulling.

[0004] In tube cutting machines, distortion can occur on the surface of the square profile part being cut with a laser, internal curvature can occur on the edge surfaces, and similar surface problems can arise. While this does not frequently occur in aluminum profiles, surface deterioration is common, especially in black sheet metal and profiles made of stainless material. Distortions are particularly evident in small square profiles and long profiles. This leads to problems with the regular cutting and centering of the square profile entering the cutting area. Furthermore, tolerances are exceeded in delicate parts being cut. This leads to an increase in scrap rates and production costs.

[0005] As a result, due to all the above-mentioned problems, improvement in the related technical field is required. BRIEF DESCRIPTION OF THE INVENTION

[0006] The present invention relates to a laser cutting machine for eliminating the above-mentioned disadvantages and for bringing about new advantages in the related technical field.

[0007] An object of the present invention is to provide determination of distortion and internal curvature errors present on the surface to accordingly provide execution of centering of the cutting head during laser cutting of a quadrangular profile.

[0008] Another object of the present invention is to reduce a scrap rate generated during cutting and to increase production efficiency by performing correct centering on quadrangular profiles with distortion and internal curvature defects on their surface.

[0009] To achieve the above objects and the objects that will become apparent from the following detailed description, the present invention relates to a laser cutting machine for providing cutting of a square profile and comprising a chuck that moves in a rotating manner and that clamps and holds the square profile, at least one support arm that supports lifting of the square profile held by the chuck, a second chuck that provides fixation of the square profile advanced by the chuck at the portion where cutting is performed, and at least one cutting head that performs the cutting process.Therefore, to provide centering of the quadrangular profile, the laser cutting machine in question comprises a centering unit with at least one sensor, at least one processor to which the center measurement detected by the sensor is transmitted, and at least one control unit that adjusts the position of the cutting head according to the information transmitted by the processor. Thus, during laser cutting of quadrangular profiles, the distortion and internal curvature errors present on the surface are determined, and centering of the cutting head is performed accordingly. SHORT DESCRIPTION OF THE CHARACTERS Fig. 1 is a representative perspective view of the subject laser cutting machine. Fig. 2 is a representative perspective view of the part where the cutting head is present in the subject laser cutting machine. Fig. 3 is a representative schematic view of a centering unit of the square profile in the subject laser cutting machine. DETAILED DESCRIPTION OF THE INVENTION

[0010] In this detailed description, the subject laser cutting machine (1) is explained with reference to examples, without any limitation, only to make the subject matter more understandable.

[0011] In Fig. Figure 1 shows a representative perspective view of the subject laser cutting machine (1). The present invention relates to a laser cutting machine (1) with a centering unit (50) for providing precise cutting of square profiles (2). Located within the laser cutting machine (1) is a chuck (10) that clamps and holds the square profile (2) to be cut from multiple points corresponding to the edge dimensions. At least one support arm (20) supports the lifting of the square profile (2) held by the chuck (10). The square profile (2), supported by the support arm (20), is advanced by the chuck (10) and transferred to the part where cutting is performed. The square profile (2) to be cut is clamped and fixed by means of a second chuck (30) positioned in the cutting area.At least one centering unit (50) is provided for providing correct centering and regular cutting of the square profile (2) to be cut by at least one cutting head (40).

[0012] In Fig. Figure 2 shows a representative perspective view of the part where the cutting head (40) is located in the laser cutting machine (1). In the laser cutting machine (1), the chuck (10), which moves in a rotating manner, clamps and holds the square profile (2) by means of several points corresponding to the diameter and thickness of the square profile (2). This process provides a gentle advancement of the square profile (2) and is carried out to prevent slipping during rotation. After raising the support arms (20) according to the dimensions of the square profile (2), the square profile (2) to be cut passes through the second chuck (30) and is pushed to the area where the laser cutting head (40) is located. In this part, at least one sensor (51) for determining the central position of the square profile (2) is provided.By means of the sensor (51) the position of the center of the square profile (2) is determined, the position of which changes due to the distortions that occur due to bending or similar reasons.

[0013] In Fig.Figure 3 shows a representative schematic view of a centering unit (50) in the laser cutting machine (1) in question. The centering unit (50) contains a processor (52) to which the center position of the quadrangular profile (2), detected by the sensor (51), is transmitted. The processor (52) compares the center point information of the quadrangular profile (2) transmitted by the sensor (51) with the predetermined value and calculates the distance relative to the center point. A command is then transmitted to a control unit (53) for providing adjustment of the position of the cutting head (40) by the processor (52). The control unit (53) adjusts the position of the cutting head (40) according to the information received from the processor (52). Therefore, the most precise cutting operations are performed, even for quadrangular profiles (2) that are not regularly linear.Thanks to the instant measurements, the same precision is provided during cutting of the square profile (2).

[0014] Thus, by performing correct centering in square profiles (2) with distortion and internal curvature errors on their surface, the scrap rate occurring during cutting is reduced and production efficiency is increased.

[0015] The scope of the present invention is indicated in the appended claims and cannot be limited to the illustrative disclosure set forth above in the detailed description. This is because one skilled in the relevant art can obviously create similar embodiments in light of the foregoing disclosure without departing from the basic principles of the present invention. REFERENCE SYMBOL 1 laser cutting machine 2 Square profile 10 chucks 20 support arms 30 Second chuck 40 cutting head 50 centering unit 51 Sensor 52 processor 53 Control unit

Claims

[1] A laser cutting machine (1) for providing cutting of a square profile (2) and comprising a chuck (10) designed to rotate and clamp and hold the square profile (2), at least one support arm (20) designed to assist in lifting the square profile (2) held by the chuck (10), a second chuck (30) providing fixation of the square profile (2) advanced by the chuck (10) at the section where cutting is performed, and at least one cutting head (40) designed to carry out the cutting process, wherein, in order to provide centering of the square profile (2), the laser cutting machine (1) in question comprises a centering unit (50) with two sensors (51) positioned on both sides of the square profile (2) and designed to measure immediately during cutting,at least one processor (52) to which the central position of the quadrangular profile detected by the sensor (51) is transmitted, and at least one control unit (53) designed to adjust the position of the cutting head (40) according to the information transmitted by the processor (52).

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