A process for cutting a bridge by nc

Abstract

The application discloses a novel NC cutting bridge process method, which comprises the following steps: (1) firstly judging whether it is a long and narrow component, if it is a long and narrow component, NC cutting is carried out through bridge erection; (2) according to the thickness of the NC cutting steel plate, the spacing L1 between adjacent long and narrow components is adjusted; (3) according to the principle of large bridge wrapping small bridge, a plurality of bridges are erected along the long edge direction of the adjacent long and narrow components on the same NC cutting steel plate; (4) taking the lower left corner of the NC cutting steel plate as a starting point, NC cutting is carried out in a counterclockwise direction according to the cutting sequence from bottom to top and from left to right, and the connection between the long and narrow component boundary and the NC cutting steel plate is ensured during NC cutting; (5) according to the principle of cutting small bridges first and then cutting large bridges, independent long and narrow components are obtained through manual cutting. The application adopts the design of large bridge wrapping small bridge, and the bridge width and the bridge arrangement principle are standardized, so that the two ends of the long and narrow component NC cutting are prevented from being deformed and raised due to heat.

Description

Technical Field

[0001] This invention relates to the field of NC cutting technology, and specifically to a process method for NC cutting cable trays. Background Technology

[0002] Steel plates commonly used in ship section construction are prone to heat deformation during NC cutting, especially long and narrow sections. The ends of these sections are easily warped due to heat during cutting, which can damage the NC cutting machine's nozzle, affect cutting accuracy, and even cut the long and narrow sections. Currently, the common practice is for operators to rely on their experience and utilize the NC cutting equipment's built-in bridge setting function to manually modify the NC cutting data and arrange standard-width bridges. These bridges connect the boundaries of the long and narrow sections to the steel plate, maintaining the connection during NC cutting without severing it. The sections are then manually cut away and repaired after NC cutting is complete.

[0003] However, conventional cable tray installations have the following drawbacks: 1) Due to the limited experience of operators, excessively narrow cable trays can lead to tearing, severe deformation of component edges, and even cuts to components and damage to the NC cutting machine head; while excessively wide cable trays can protect the safety of NC cutting, they also significantly increase the time required for subsequent manual cutting and repair; 2) Improper cable tray placement can easily cause cable tray breakage, component cuts, and damage to the NC cutting machine head, thus increasing repair time; 3) It can easily affect the accuracy of NC cutting, wasting materials and increasing repair time. Therefore, these problems urgently need to be addressed. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide an NC cutting cable tray process method. This method employs a large-bridge-enclosed-small-bridge design and standardizes the cable tray width and layout principles. This allows for the connection of narrow, elongated components to the steel plate during NC cutting, effectively locking the edges of the narrow components and preventing deformation and warping at both ends due to heat. This eliminates damage to the NC cutting machine head, ensuring NC cutting safety and reducing costs. Simultaneously, it controls the displacement and deformation of the narrow components during NC cutting, ensuring NC cutting accuracy, reducing subsequent manual cutting and repair time, and saving construction costs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The innovative aspect of the NC cutting process for cable trays of the present invention lies in including the following steps: (1) First, determine whether the part to be cut is a long and narrow part. If it is a long and narrow part, NC cutting is required by setting up a cable tray. (2) When it is determined that NC cutting needs to be carried out by erecting a cable tray, the spacing L1 between adjacent narrow and long components is adjusted according to the thickness of the steel plate to be cut by different NC cutting, so as to ensure the safety distance of the cable tray and ensure the safe construction of NC cutting. (3) Then, following the principle of "large bridge enclosing small bridge", several cable trays are installed sequentially along the long side of two adjacent narrow and long components on the same NC-cut steel plate. In the above steps, the large bridge refers to the gap between steel plates within the range of two parallel straight line segments with a slightly longer distance, and the distance of the straight line segments is represented as the width d1 of the large bridge; the small bridge is the gap between steel plates within the range of two parallel straight line segments with a shorter distance, and the distance of the straight line segments is represented as the width d2 of the small bridge. In the above steps, small bridges are all erected on the upper long side of each of the aforementioned elongated components, and no small bridges are required for the corresponding elongated components on the uppermost side of the same NC-cut steel plate; large bridges are all erected on the lower long side of each of the aforementioned elongated components, and no large bridges are required for the corresponding elongated components on the lowermost side of the same NC-cut steel plate; the erection position of each large bridge corresponds to the erection position of each small bridge, and the large bridges and small bridges on two adjacent elongated components must be paired on the same side to form a large bridge enclosing a small bridge, thus forming a complete bridge frame; (4) Starting from the lower left corner of the NC-cut steel plate, perform NC cutting in a counterclockwise direction according to the cutting order from bottom to top and from left to right, and ensure that the boundary of the narrow part is connected to the NC-cut steel plate during NC cutting. (5) Then, following the principle of cutting the small bridge first and then the large bridge, individual narrow and long parts are obtained by manual cutting.

[0006] Preferably, in step (1) above, when the aspect ratio of the required cutting part exceeds 6:1, the part is identified as a long and narrow part and needs to be NC cut by setting up a cable tray.

[0007] Preferably, in step (2) above, the principle for setting the spacing L1 between adjacent elongated components is as follows: (2.1) When the thickness of the NC-cut steel plate is less than or equal to 40 mm, the spacing L1 between adjacent elongated parts is 20 mm. (2.2) When the thickness of the NC-cut steel plate is greater than 40.5 mm and less than or equal to 60 mm, the spacing L1 between adjacent elongated parts is 30 mm. (2.3) When the thickness of the NC-cut steel plate is greater than 60mm, the spacing L1 between adjacent elongated parts is 40mm.

[0008] Preferably, in step (3) above, the width d1 of the main bridge and the width d2 of the secondary bridge are both safety distances for controlling the NC cutting accuracy, and they are adjusted according to the thickness of different NC-cut steel plates, specifically as follows: (3.1.1) When the thickness of the NC-cut steel plate is less than or equal to 35mm, the width d1 of the main bridge is 100mm and the width d2 of the small bridge is 50mm. (3.1.2) When the thickness of the NC-cut steel plate is greater than 35mm and less than or equal to 40mm, the width d1 of the main bridge is 150mm and the width d2 of the small bridge is 75mm. (3.1.3) When the thickness of the NC-cut steel plate is greater than 40mm, the width d1 of the main bridge is 300mm and the width d2 of the small bridge is 150mm.

[0009] Preferably, in step (3) above, the principle of cable tray arrangement is that cable trays need to be installed at both ends of the long side of each of the narrow and long components, that is, small bridges need to be installed at both ends of the long side of each of the narrow and long components on the upper side, and large bridges need to be installed at both ends of the long side of the lower side; the distance L3 between the left and right ends of each of the narrow and long components and the first cable tray at its end needs to be greater than 300mm, and the cable trays on each of the narrow and long components are arranged at equal intervals along its long side, thereby determining the number of cable trays required to be installed on each of the narrow and long components.

[0010] Preferably, the cable tray spacing L2 on each of the elongated components is determined based on the width and length of the elongated component, specifically as follows: (3.2.1) When the width of the narrow component is 200mm and its length is 3000mm, the cable tray spacing L2 is 2000mm; (3.2.2) When the width of the narrow component is 300mm and its length is 3400mm, the cable tray spacing L2 is 2000mm; (3.2.3) When the width of the narrow component is 400mm and its length is 4000mm, the cable tray spacing L2 is 2000mm; (3.2.4) When the width of the narrow section is greater than or equal to 500 mm and its length is greater than or equal to 4700 mm, the cable tray spacing L2 is 4000 mm.

[0011] The beneficial effects of this invention are as follows: This invention adopts a large-bridge-enclosed-small-bridge design and standardizes the bridge width and bridge arrangement principles, which allows for the connection of the narrow and elongated component boundary with the steel plate during NC cutting. This achieves locking of the narrow and elongated component edge during NC cutting, ensuring that the two ends of the narrow and elongated component will not deform or warp due to heat, thereby eliminating the phenomenon of damage to the NC cutting machine head, ensuring NC cutting safety, and reducing costs. At the same time, it controls the narrow and elongated component to prevent displacement and deformation during NC cutting, ensuring NC cutting accuracy, reducing subsequent manual cutting and repair time, and saving construction costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a construction instruction diagram for NC cutting cable trays according to the present invention.

[0013] Figure 2 This is a schematic diagram of the cable tray of the present invention.

[0014] Figure 3 This is a physical image of the cable tray of the present invention.

[0015] Figure 4 This is an embodiment of the NC-cut cable tray of the present invention.

[0016] Figure 5 This is a second embodiment of the NC-cut cable tray of the present invention.

[0017] Wherein, 1-NC cut steel plate; 2-narrow elongated component; L1 is the spacing between adjacent narrow elongated components; L2 is the spacing between cable trays on each narrow elongated component; L3 is the distance between the left and right ends of the narrow elongated component and the first cable tray near its end; d1 is the width of the large bridge; d2 is the width of the small bridge. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below through specific embodiments.

[0019] The present invention provides a method for NC cutting cable trays, such as... Figures 1-5 As shown, it includes the following steps: (1) First, determine whether the part to be cut is a long and narrow part 2. If it is a long and narrow part 2, then NC cutting is required by setting up a cable tray. In the above steps, when the aspect ratio of the required cutting part exceeds 6:1, the part is identified as a narrow and long part 2, and NC cutting is required by setting up a cable tray.

[0020] (2) When it is determined that NC cutting needs to be carried out by erecting a cable tray, the spacing L1 between adjacent narrow and long parts 2 is adjusted according to the thickness of the steel plate 1 to ensure the safety distance of the cable tray and ensure safe construction of NC cutting. In the above steps, the specific principle for setting the spacing L1 between adjacent elongated components 2 is as follows: (2.1) When the thickness of the NC-cut steel plate 1 is less than or equal to 40 mm, the spacing L1 between adjacent narrow and long parts 2 is 20 mm. (2.2) When the thickness of the NC-cut steel plate 1 is greater than 40.5 mm and less than or equal to 60 mm, the spacing L1 between adjacent narrow and long parts 2 is 30 mm. (2.3) When the thickness of the NC-cut steel plate 1 is greater than 60mm, the spacing L1 between adjacent narrow and long parts 2 is 40mm.

[0021] (3) Then, following the principle of large bridge enclosing small bridge, several bridge frames are installed sequentially along their long side between two adjacent narrow and long parts 2 on the same NC cut steel plate 1. In the above steps, the large bridge refers to the gap between steel plates within the range of two parallel straight line segments with a slightly longer distance, and the distance of the straight line segments is represented as the width d1 of the large bridge; the small bridge is the gap between steel plates within the range of two parallel straight line segments with a shorter distance, and the distance of the straight line segments is represented as the width d2 of the small bridge.

[0022] The small bridges are all erected on the upper long side of each narrow section 2, and the corresponding narrow section 2 on the uppermost side of the same NC-cut steel plate 1 does not need to be erected with small bridges; the large bridges are all erected on the lower long side of each narrow section 2, and the corresponding narrow section 2 on the lowermost side of the same NC-cut steel plate 1 does not need to be erected with large bridges; the erection position of each large bridge corresponds to the erection position of each small bridge, and the large bridges and small bridges on two adjacent narrow sections 2 must be paired on the same side to form a large bridge-small bridge form, thus forming a complete bridge frame.

[0023] In this invention, the widths d1 of the main bridge and d2 of the secondary bridge are both safety distances for controlling the NC cutting accuracy, and they are adjusted according to the thickness of different NC-cut steel plates 1, specifically as follows: (3.1.1) When the thickness of the NC-cut steel plate 1 is less than or equal to 35mm, the width d1 of the main bridge is 100mm and the width d2 of the small bridge is 50mm. (3.1.2) When the thickness of the NC-cut steel plate 1 is greater than 35mm and less than or equal to 40mm, the width d1 of the main bridge is 150mm and the width d2 of the small bridge is 75mm. (3.1.3) When the thickness of the NC-cut steel plate 1 is greater than 40mm, the width of the bridge d1 is 300mm and the width of the small bridge d2 is 150mm.

[0024] The principle of cable tray arrangement in this invention is that cable trays need to be installed at both ends of the long side of each long and narrow component 2. That is, small bridges need to be installed at both ends of the long side of each long and narrow component 2 on the upper side, and large bridges need to be installed at both ends of the long side of the lower side. The distance L3 between the left and right ends of each long and narrow component 2 and the first cable tray at its end needs to be greater than 300mm. The cable trays on each long and narrow component 2 are arranged at equal intervals along its long side, thereby determining the number of cable trays required to be installed on each long and narrow component 2.

[0025] The cable tray spacing L2 on each elongated component 2 is determined based on the width and length of the elongated component 2, specifically as follows: (3.2.1) When the width of the narrow component 2 is 200mm and its length is 3000mm, the cable tray spacing L2 is 2000mm; (3.2.2) When the width of the narrow component 2 is 300mm and its length is 3400mm, the cable tray spacing L2 is 2000mm; (3.2.3) When the width of the narrow section 2 is 400mm and its length is 4000mm, the cable tray spacing L2 is 2000mm; (3.2.4) When the width of the narrow section 2 is greater than or equal to 500 mm and its length is greater than or equal to 4700 mm, the cable tray spacing L2 is 4000 mm.

[0026] (4) should be as follows Figure 4 In the embodiment shown, starting from the lower left corner of the NC-cut steel plate 1, NC cutting is performed counterclockwise in a bottom-up cutting order, ensuring that the boundary of the elongated part 2 is connected to the NC-cut steel plate 1 during NC cutting; When it is as follows Figure 5 In the embodiment shown, starting from the lower left corner of the NC-cut steel plate 1, NC cutting is performed counterclockwise in a cutting order from bottom to top and from left to right, ensuring that the boundary of the elongated part 2 is connected to the NC-cut steel plate 1 during NC cutting.

[0027] (5) Then, following the principle of cutting the small bridge first and then the large bridge, the cutting accuracy can be guaranteed. Then, individual narrow and long parts 2 can be obtained by manually cutting them.

[0028] The beneficial effects of this invention are as follows: This invention adopts a large bridge-enclosing-small-bridge design and standardizes the bridge width and bridge arrangement principles, which allows for the connection of the narrow and elongated component 2 boundary with the steel plate during NC cutting. This achieves locking of the narrow and elongated component 2 edge during NC cutting, ensuring that the two ends of the narrow and elongated component 2 will not deform or warp due to heat during NC cutting, thereby eliminating the phenomenon of damage to the NC cutting machine head, ensuring NC cutting safety, and reducing costs. At the same time, it controls the narrow and elongated component 2 to prevent displacement and deformation during NC cutting, ensuring NC cutting accuracy, reducing subsequent manual cutting and repair time, and saving construction costs.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, all modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the technical requirements.

Claims

1. A method for NC cutting cable trays, characterized in that... Includes the following steps: (1) First, determine whether the part to be cut is a long and narrow part. If it is a long and narrow part, NC cutting is required by setting up a cable tray. (2) When it is determined that NC cutting needs to be carried out by erecting a cable tray, the spacing L1 between adjacent narrow and long components is adjusted according to the thickness of the steel plate to be cut by different NC cutting, so as to ensure the safety distance of the cable tray and ensure the safe construction of NC cutting. (3) Then, following the principle of "large bridge enclosing small bridge", several cable trays are installed sequentially along the long side of two adjacent narrow and long components on the same NC-cut steel plate. In the above steps, the large bridge refers to the gap between steel plates within the range of two parallel straight line segments with a slightly longer distance, and the distance of the straight line segments is represented as the width d1 of the large bridge; the small bridge is the gap between steel plates within the range of two parallel straight line segments with a shorter distance, and the distance of the straight line segments is represented as the width d2 of the small bridge. In the above steps, small bridges are all erected on the upper long side of each of the aforementioned elongated components, and no small bridges are required for the corresponding elongated components on the uppermost side of the same NC-cut steel plate; large bridges are all erected on the lower long side of each of the aforementioned elongated components, and no large bridges are required for the corresponding elongated components on the lowermost side of the same NC-cut steel plate; the erection position of each large bridge corresponds to the erection position of each small bridge, and the large bridges and small bridges on two adjacent elongated components must be paired on the same side to form a large bridge enclosing a small bridge, thus forming a complete bridge frame; (4) Then, starting from the lower left corner of the NC-cut steel plate, perform NC cutting in a counterclockwise direction according to the cutting order from bottom to top and from left to right, and ensure that the boundary of the narrow part is connected to the NC-cut steel plate during NC cutting. (5) Then, following the principle of cutting the small bridge first and then the large bridge, individual narrow and long parts are obtained by manual cutting.

2. The NC cutting process for cable trays according to claim 1, characterized in that: In step (1) above, when the aspect ratio of the required cutting part exceeds 6:1, the part is identified as a long and narrow part and needs to be NC cut by setting up a cable tray.

3. The NC cutting process for cable trays according to claim 1, characterized in that: In step (2) above, the specific principle for setting the spacing L1 between adjacent elongated components is as follows: (2.1) When the thickness of the NC-cut steel plate is less than or equal to 40 mm, the spacing L1 between adjacent elongated parts is 20 mm. (2.2) When the thickness of the NC-cut steel plate is greater than 40.5 mm and less than or equal to 60 mm, the spacing L1 between adjacent elongated parts is 30 mm. (2.3) When the thickness of the NC-cut steel plate is greater than 60mm, the spacing L1 between adjacent elongated parts is 40mm.

4. The NC cutting process for cable trays according to claim 1, characterized in that: In step (3) above, the widths d1 of the main bridge and d2 of the secondary bridge are safety distances for controlling the NC cutting accuracy, and they are adjusted according to the thickness of the steel plate to be cut by the NC cutting, specifically as follows: (3.1.1) When the thickness of the NC-cut steel plate is less than or equal to 35mm, the width d1 of the main bridge is 100mm and the width d2 of the small bridge is 50mm. (3.1.2) When the thickness of the NC-cut steel plate is greater than 35mm and less than or equal to 40mm, the width d1 of the main bridge is 150mm and the width d2 of the small bridge is 75mm. (3.1.3) When the thickness of the NC-cut steel plate is greater than 40mm, the width d1 of the main bridge is 300mm and the width d2 of the small bridge is 150mm.

5. The NC cutting process for cable trays according to claim 1, characterized in that: In step (3) above, the principle of cable tray arrangement is that cable trays need to be installed at both ends of the long side of each of the narrow and long components. That is, small bridges need to be installed at both ends of the long side of each of the narrow and long components on the upper side, and large bridges need to be installed at both ends of the long side of the lower side. The distance L3 between the left and right ends of each of the narrow and long components and the first cable tray at its end needs to be greater than 300mm. The cable trays on each of the narrow and long components are arranged at equal intervals along its long side, thereby determining the number of cable trays required to be installed on each of the narrow and long components.

6. The NC cutting process for cable trays according to claim 5, characterized in that: The cable tray spacing L2 on each of the aforementioned elongated components is determined based on the width and length of the elongated component, specifically as follows: (3.2.1) When the width of the narrow component is 200mm and its length is 3000mm, the cable tray spacing L2 is 2000mm; (3.2.2) When the width of the narrow component is 300mm and its length is 3400mm, the cable tray spacing L2 is 2000mm; (3.2.3) When the width of the narrow component is 400mm and its length is 4000mm, the cable tray spacing L2 is 2000mm; (3.2.4) When the width of the narrow section is greater than or equal to 500 mm and its length is greater than or equal to 4700 mm, the cable tray spacing L2 is 4000 mm.

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