阅读说明：本技术 一种用于厚板的切割方法 (Cutting method for thick plate ) 是由 付永东 江凌晨 唐公正 秦超 王伟 于 2019-10-31 设计创作，主要内容包括：本发明具体是一种用于厚板的切割方法；其包括数控切割机和待切板坯,其特征是：还包括步骤1、将待切割板坯放置在数控切割机的平台上；步骤2、按一顺一逆的间隔顺序调整数控切割机的喷嘴角度,并将喷嘴下降到板坯上方；步骤3、按板件宽度要求,调节各喷嘴的间隔宽度；步骤4、启动数控切割机并对板坯进行一次性切割成型。本方法与传统方法相比,通过调整喷嘴后,使得板坯仅通过数控切割机一次切割即可形成板件。传统方法与本方法相比,在进行一次切割后,还需要额外的切割辅助装置进行二次切割才可形成符合尺寸要求的板件。由此可见,本方法减少了切割加工的作业次数、减少了原材料的浪费,从而实现了绿色加工的目的。(The invention particularly relates to a cutting method for thick plates; it includes numerical control cutting machine and treats the cutting plate base, characterized by: the method comprises the following steps that 1, a plate blank to be cut is placed on a platform of a numerical control cutting machine; step 2, adjusting the angle of a nozzle of the numerical control cutting machine according to a forward-backward interval sequence, and lowering the nozzle above the plate blank; step 3, adjusting the interval width of each nozzle according to the width requirement of the plate; and 4, starting the numerical control cutting machine and performing one-time cutting molding on the plate blank. Compared with the traditional method, the method has the advantages that the plate can be formed by only cutting the plate blank once through the numerical control cutting machine after the nozzle is adjusted. Compared with the traditional method, after the primary cutting is carried out, an additional cutting auxiliary device is needed for secondary cutting, and the plate meeting the size requirement can be formed. Therefore, the method reduces the operation times of cutting and processing, reduces the waste of raw materials and achieves the aim of green processing.)

1. A cutting method for thick plates comprises a numerical control cutting machine with a plurality of nozzles and a plate blank to be cut, and is characterized in that: further comprising the steps of:

step 1, placing a plate blank to be cut on a platform of a numerical control cutting machine;

step 2, adjusting the angle of a nozzle of the numerical control cutting machine according to a forward-backward interval sequence, and lowering the nozzle above the plate blank;

step 3, adjusting the interval width of each nozzle according to the width requirement of the plate;

step 4, starting the numerical control cutting machine and performing one-time cutting molding on the plate blank;

in the above steps, a forward and backward spacing sequence specifically means that, when viewed from the vertical section of the slab, the nozzle angles are sequentially inclined from left to right, inclined from right to left, inclined from left to right, and so on in this order; or, the angles of the nozzles are inclined from right to left, from left to right, from right to left and from right to left in sequence when viewed from the vertical section of the slab, and the like in sequence.

Technical Field

The invention relates to the field of steel structure processing, in particular to a cutting method for thick plates.

Background

The traditional method for forming the groove on the thick steel plate is to place the plate blank on a cutting platform corresponding to a numerical control machine tool, directly cut the plate blank, transport the plate blank to a specific position, lay the plate blank to be formed with the groove, and then cut the plate blank by semi-automatic flame. The nozzles are obliquely arranged on the two sides of the plate blank from inside to outside when flame cutting is carried out, so that the groove which is inclined inwards is cut out, the nozzles are obliquely arranged in the middle of the plate blank from outside to inside, so that the V-shaped crevasse is cut out, and then the supplementary cutting is carried out on the middle of the V-shaped crevasse, so that two plates which are cut completely are obtained. The operation sequence has serious material loss, such as over-low utilization rate of the plate blank, serious waste of leftover materials, high cutting frequency, serious gas waste and the appearance of manual waste. Moreover, the grooves on two sides of the plate blank are often inconsistent or bent and deformed in the process of forming the grooves, so that the forming quality of the plate is affected.

Disclosure of Invention

The object of the present invention is to overcome the above-mentioned drawbacks and to provide a method for cutting slabs which saves raw materials and reduces the number of blanks and accessories.

In order to achieve the above object, the present invention is realized by:

a cutting method for thick plates, which comprises a numerical control cutting machine with a plurality of nozzles and a plate blank to be cut, and further comprises the following steps:

step 1, placing a plate blank to be cut on a platform of a numerical control cutting machine;

step 2, adjusting the angle of a nozzle of the numerical control cutting machine according to a forward-backward interval sequence, and lowering the nozzle above the plate blank;

step 3, adjusting the interval width of each nozzle according to the width requirement of the plate;

step 4, starting the numerical control cutting machine and performing one-time cutting molding on the plate blank;

in the above steps, a forward and backward spacing sequence specifically means that, when viewed from the vertical section of the slab, the nozzle angles are sequentially inclined from left to right, inclined from right to left, inclined from left to right, and so on in this order; or, the angles of the nozzles are inclined from right to left, from left to right, from right to left and from right to left in sequence when viewed from the vertical section of the slab, and the like in sequence.

Compared with the traditional method, the method has the advantages that the plate can be formed by only cutting the plate blank once through the numerical control cutting machine after the nozzle is adjusted. Compared with the traditional method, after the primary cutting is carried out, an additional cutting auxiliary device is needed for secondary cutting, and the plate meeting the size requirement can be formed. Therefore, compared with the traditional method, the method reduces the operation times of cutting and processing, reduces the waste of raw materials and achieves the aim of green processing.

Drawings

FIG. 1 is a first diagram of a conventional cutting process.

FIG. 2 is a first schematic diagram of the cutting process.

FIG. 3 is a second schematic diagram of a conventional cutting method.

FIG. 4 is a second schematic diagram of the cutting process.

Fig. 5 is a third schematic diagram of the conventional cutting method.

FIG. 6 is a third schematic diagram of the cutting process.

Detailed Description

The invention is further illustrated by the following specific examples.

A cutting method for thick plates, which comprises a numerical control cutting machine with a plurality of nozzles and a plate blank to be cut, and further comprises the following steps:

step 1, placing a plate blank to be cut on a platform of a numerical control cutting machine;

step 2, adjusting the angle of a nozzle of the numerical control cutting machine according to a forward-backward interval sequence, and lowering the nozzle above the plate blank;

step 3, adjusting the interval width of each nozzle according to the width requirement of the plate;

step 4, starting the numerical control cutting machine and performing one-time cutting molding on the plate blank;

in the above steps, a forward and backward spacing sequence specifically means that, when viewed from the vertical section of the slab, the nozzle angles are sequentially inclined from left to right, inclined from right to left, inclined from left to right, and so on in this order; or, the angles of the nozzles are inclined from right to left, from left to right, from right to left and from right to left in sequence when viewed from the vertical section of the slab, and the like in sequence.

The advantages of the cutting method over the conventional cutting method are further illustrated by three practical cutting examples as follows:

as shown in figures 1 and 2 of the drawings,

when two 500mm 5000mm plates are drawn out of a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 100mm by using the traditional groove opening mode, a 45-degree groove is formed, the black part shown in figure 1 is the part wasted by materials, and the waste amount of specific materials is as follows: 100 × 5000 × 7.85/1000000=392.5 kg.

In contrast, as shown in fig. 2, when two 500mm by 5000mm plates are drawn from a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 100mm by adopting the method of the present invention, and a 45 ° bevel is formed, the wasted material is only 1/2 in the traditional beveling manner.

As shown in figures 3 and 4 of the drawings,

when two 500mm 5000mm plates are drawn for a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 100mm by using the traditional groove opening mode, a 35-degree groove is formed, the black part shown in figure 3 is the part wasted by materials, and the waste amount of specific materials is as follows: 100 x 35 x 2 x 5000 x 7.85/1000000=274.75 kg;

as shown in fig. 4, when two 500mm by 5000mm plates are drawn from a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 100mm by adopting the method and a 35-degree groove is formed, the wasted material is only 1/2 in the traditional groove forming mode.

As shown in figures 5 and 6 of the drawings,

when two 500mm 5000mm plates are drawn for a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 40mm by using the traditional groove opening mode, a 45-degree groove is formed, the black part shown in figure 5 is the part wasted by materials, and the waste amount of specific materials is as follows: 57 × 57/2 × 5000 × 7.85/1000000=63.76 kg;

as shown in figure 6, when the method is adopted to draw two 500mm 5000mm plates from a steel plate with the length of 5000mm, the width of 1000mm and the thickness of 40mm and open a 40-degree groove, the wasted material is only 1/2 in the traditional groove opening mode

Compared with the conventional method, the method disclosed by the invention has the advantages that the material loss is greatly reduced and the material utilization rate is improved for cutting the same plate and grooving the same groove, and the more thick plates are required to be grooved, the more materials are saved.

Compared with the traditional cutting mode, the method can effectively save materials and save manpower and cutting gas amount generated by a single groove forming process; the one-step forming rate is high in the groove opening process, the defect rate of the groove is reduced, the defect treatment amount is reduced, and the working efficiency is effectively improved.