A sheet metal cutting machine and method that can simultaneously cut sheet metal and detect its strength.

Abstract

Provided is a sheet material cutting machine and a method thereof capable of simultaneously performing sheet material cutting and strength detection. 【Solution means】A fixed table used for fixing a sheet material in which a rectangular cutting line is formed in advance, A lifting platform arranged around a plurality of cutting blocks, A plurality of stress sensors respectively connecting the plurality of cutting blocks, When the driving mechanism drives to approach the lifting platform and the fixed table, the cutting block applies a vertical pressure to the edge of the cutting line provided along the sheet material to cut and separate the edge of the cutting line of the sheet material. At the same time, the stress received when cutting the sheet material is transmitted to the stress sensor and replaced with an electronic signal and transmitted to the computer device.

Description

Technical Field

[0001] This case mainly relates to a cutting machine for cutting plate materials such as ceramic substrates, and particularly relates to a plate material cutting machine and its method that can simultaneously perform cutting and strength detection of plate materials.

Background Art

[0002] A ceramic substrate is a type of circuit board. It uses highly purified inorganic materials as raw materials, precisely controls the composition and uniformity through chemical or physical means, and then, after being formed by dry pressing, paste casting, injection molding, etc., is further processed into products through a subsequent sintering step. Different from conventional FR-4 and aluminum substrates, it has a thermal expansion coefficient close to that of a semiconductor and high heat resistance. In addition, it combines characteristics such as hardness, wear resistance, pressure resistance, high heat resistance, acid resistance, and alkali resistance, and is suitable for products with a large amount of heat generation (such as high-brightness LED carrier substrates, automotive LED lighting lamps, LED street lamps, solar inverters, etc.).

[0003] Before use, the substrate needs to be cut (trimmed) to an appropriate size. Especially before cutting a brittle and hard ceramic substrate, after undergoing a pretreatment of cutting line formation, in the subsequent processing process, pressure is applied along the edge so that the plate material is separated along the cutting line. The cutting line can be formed, for example, by using a cutting wheel (forming a cutting line), or by methods such as laser ablation.

[0004] In addition, in order to know whether the strength of the substrate meets the requirements, a destructive test of the plate material is required. Therefore, the plate material after the destructive test becomes waste material and has to be discarded, which may result in waste of costs. Thus, the destructive test is limited to a sampling test and cannot perform a 100% test. Furthermore, since the machine used for the strength test and the cutting machine are installed separately, a lot of space is occupied.

Summary of the Invention

Problems to be Solved by the Invention

[0005] As mentioned above, the main objective of this invention is to provide a sheet metal cutting machine and method that can perform sheet metal cutting and strength detection simultaneously. [Means for solving the problem]

[0006] The sheet metal cutting machine provided in this invention, which can simultaneously cut sheet metal and detect its strength, includes a fixed table for fixing the sheet metal, a lifting platform positioned above the fixed table with multiple cutting blocks arranged around its lower surface, multiple stress sensors connected to each of the multiple cutting blocks and connected to a computer device, and a drive mechanism for moving the lifting platform or the fixed table vertically upward relative to each other. The upper surface of the sheet metal is pre-formed with cutting lines, and when the lifting platform or the fixed table is driven and approaches each other, the multiple cutting blocks apply vertical pressure to the edges of the cutting lines on the sheet metal, thereby cutting and separating the edges of the cutting lines. At the same time, the stress experienced by the sheet metal during cutting is transmitted to each stress sensor, converted into an electronic signal, and transmitted to the computer device. By applying the cutting machine of this invention, the strength of the sheet metal can be quickly detected when it is cut, and the relevant data is transmitted to the computer device for processing and analysis, so defective products can be immediately eliminated, thereby significantly improving production efficiency and saving space occupied by inspection equipment in the factory.

[0007] In another embodiment of this invention, for example, a fixed table is installed, and the drive mechanism can be used to drive a lifting platform up and down relative to the fixed table.

[0008] In another embodiment of this invention, for example, a lifting platform is fixed in place, and the drive mechanism can be used to drive a fixed table up and down relative to the lifting platform. In one embodiment of the present invention, the lower ends of each cutting block are located at the same height as each other, and as the lifting platform or fixed table is driven in close proximity to each other, the cutting blocks simultaneously apply vertical pressure to each edge of the cutting line of the board material, thereby cutting and separating the peripheral edges of the cutting line of the board material.

[0009] In another embodiment of this invention, the lower ends of each of the cutting blocks may be set at different heights, and when the lifting platform or fixed table is driven in close proximity to each other, the cutting blocks, starting with the one with the lowest lower end and starting with the one with the highest lower end, sequentially apply vertical pressure to the board material along the edge of the rectangular cutting line, cutting the edge of the cutting line of the board material and separating it.

[0010] In one preferred embodiment of this invention, a fixed table is provided with a plurality of air holes, which are connected to a vacuum pump. The vacuum pump is operated to create negative pressure in the air holes, causing the plate material placed on the fixed table to be attracted to it. With this structure, the plate material can be quickly fixed to the fixed table by vacuum attraction, or the vacuum can be released to quickly remove the plate material from the fixed table.

[0011] In one preferred embodiment of the present invention, a lifting platform including a place table having four rectangular sides and four grooved holes penetrating the top and bottom, and a connecting platform connected to a drive mechanism and attached to one side of the place table, for example, has a stress sensor positioned above the place table and a cutting block positioned below the place table, with the stress sensor and the cutting block each connected via connecting blocks, and the connecting blocks each housed in the grooved holes. With this configuration, as the lower cutting block cuts the board material, the stress sensors each transfer the connecting blocks to the upper stress sensor, thereby preventing damage to the stress sensors from external forces.

[0012] In one embodiment of this invention, for example, a pressing plate can be provided in the area surrounded by the cutting block below the place table, and the position of the lower surface of the pressing plate can be lower than the height of the lowest lower end surface of the cutting block. With this structure, when the cutting block descends and comes into contact with the board material, the board material is first pressed down by the pressing plate, and then the cutting block comes into contact with the board material and the board material is cut.

[0013] The present invention further provides a cutting method that can simultaneously detect the strength of a sheet material, comprising the steps of: forming a cutting line on the upper surface of the sheet material; using a sheet material cutting machine according to any one of claims 1 to 8, applying downward vertical pressure to the sheet material along the edge of the rectangular cutting line to cut and separate the edge of the cutting line provided on the sheet material; and simultaneously with the cutting of the edge of the cutting line, transmitting the stress the sheet material receives during cutting to a stress sensor, converting it into an electronic signal, and transmitting it to a computer device.

[0014] In another embodiment of the cutting method of the present invention, for example, the sheet metal cutting machine can apply vertical pressure to the edge of the sheet metal while simultaneously cutting and separating the edge of the cutting line of the sheet metal, or the sheet metal cutting machine can sequentially apply vertical downward pressure along the edge of the cutting line of the sheet metal to cut and separate it. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic three-dimensional diagram showing the external structure of the sheet metal cutting machine of this invention. [Figure 2] This is a schematic front view showing the front of the external structure of the sheet metal cutting machine of this invention. [Figure 3] This is a schematic side view showing the external structure of the sheet metal cutting machine of this invention. [Figure 4] This is a top view of the external structure of the sheet metal cutting machine in this invention. [Figure 5] This is a schematic three-dimensional diagram showing the drive mechanism of the sheet metal cutting machine of this invention. [Figure 6] This is a schematic diagram of the lifting platform of the sheet metal cutting machine in this invention. [Figure 7] This diagram shows the overall structure of the sheet metal cutting machine of this invention, and a schematic cross-sectional view of the lifting platform before it lowers to cut the sheet metal, with the sheet metal fixed in place. [Figure 8] Figure 7 of this plan shows a schematic cross-sectional view illustrating the cutting of sheet metal when the lifting platform is lowered. [Modes for carrying out the invention]

[0016] To enable those skilled in the art to appropriately implement the present invention, embodiments of the present invention will be described in more detail below, in conjunction with the accompanying drawings and reference numerals of the components. [Examples]

[0017] As shown in Figures 1 to 7, one embodiment of the sheet metal cutting machine 1 of the present invention, which can simultaneously cut sheet metal and detect its strength, includes a fixed table 11 and a drive mechanism 12 on a base 10. A lifting platform 14 is connected to the drive mechanism 12, and the lifting platform 14 corresponds to the upper part of the fixed table 11. The drive mechanism 12 is used to drive the lifting platform 14 vertically up or down. The fixed table 11 is provided with a plurality of air holes, which are connected to a vacuum pump (not shown). When the pump is in operation, the air in the air holes is extracted by the vacuum pump, creating negative pressure, which creates an upward suction force on the fixed table 11, forming a configuration suitable for adsorption and fixing of sheet metal 2 to the fixed table 11 (see Figure 5).

[0018] As shown in Figures 5 and 7, the drive mechanism 12 includes a vertical plate 120 fixed to the base 10 perpendicular to the base 10, a motor 121 provided on one side of the vertical plate 120 and a screw 123 provided on the other side of the vertical plate 120, the screw 123 and its ends are vertically positioned together with bearing bases 1232 fixed to the vertical positions of the vertical plate 120, and a passive pulley 1231 is provided at the upper end of the screw 123, and together the passive pulley 1231 and the main pulley 1211 provided on the main shaft of the motor 121, the passive pulley 1231 and the screw 123 are driven to rotate by the belt 122, and when the screw 123 rotates, the sliding block 1233 is driven to move along the screw 123, that is, when the screw 123 is driven to rotate in the forward or reverse direction, the sliding block 1233 is driven to move up or down. Furthermore, on one side of the vertical plate 120 positioned on the screw 123, two rails 13 are arranged vertically, with the left and right sides facing each other, and each rail 13 is slidably positioned on the slider 143.

[0019] The lifting table 14 is connected to the drive mechanism 12 and is arranged above the fixed table 11. The lifting table 14 includes a placement table 141 and a connecting base 142. The placement table 141 is arranged horizontally, and the connecting base 142 is fixedly installed offset above the placement table 141 and, in principle, maintains a perpendicular relationship with the placement table 141. The placement table 141 has four sides forming a rectangle and has four through-holes, namely the first through-hole 1411, the second through-hole 1412, the third through-hole 1413, and the fourth through-hole 1414. Above the placement table 141, four stress sensors 16A - 16D, namely the first stress sensor 16A, the second stress sensor 16B, the third stress sensor 16C, and the fourth stress sensor 16D, are respectively provided. Below the placement table 141, four cutting blocks 18A - 18D, namely the first cutting block 18A, the second cutting block 18B, the third cutting block 18C, and the fourth cutting block 18D, are respectively provided. Those stress sensors 16A - 16D are respectively connected to those cutting blocks 18A - 18D by connecting blocks 15A - 15D. Those stress sensors 16A - 16D are electrically connected to a computer device (not shown).

[0020] More specifically, the first connection block 15A is housed in the first groove 1411, the first stress sensor 16A located above the place table 141 is fixed to the upper part of the first connector 15A by a fixing element such as a screw, and the first cutting block 18A is fixed to the lower part of the first connector 15A by a fixing element such as a screw. Thus, the first stress sensor 16A and the first cutting block 18A are fixed above and below the place table 141, respectively. The second connection block 15B is housed in the second groove 1412, the second stress sensor 16B located above the place table 141 is fixed to the upper part of the second connector 15B by a fixing element such as a screw, and the second cutting block 18B is fixed to the lower part of the second connector 15B by a fixing element such as a screw. With this configuration, the second stress sensor 16B and the second cutting block 18B are fixed above and below the place table 141, respectively, and the third connector 15C The third stress sensor 16C, housed in the third groove 1413 and positioned above the place table 141, is fixed to the upper part of the third connector 15C by fastening elements such as screws, and the third cutting block 18C is fixed to the upper part of the third connector 15C by fastening elements such as screws, thereby fastening the third stress sensor 16C and the third cutting block 18C to the lower surface of the third connector 15C so that they are fixed above and below the place table 141, respectively. The fourth stress sensor 16D, housed in the fourth groove 1414 and positioned above the place table 141, is fastened to the lower surface of the fourth connector 15D by fastening elements such as screws, and the fourth cutting block 18D is fastened to the lower side of the fourth connector 15D by fastening elements such as screws, thereby fastening the fourth stress sensor 16D and the fourth cutting block 18D to the upper and lower parts of the place table 141, respectively. After the stress sensors 16A-16D are placed on the place table 141, they are covered and fixed by the fixing plate 17, thus providing protection for the stress sensors 16A-16D.Furthermore, preferably, for example, a pressing plate 19 is provided within a range surrounded by the cutting blocks 18A to 18D below the placement table 141. The position of the lower surface of the pressing plate 19 is located at the height of the lowest lower end surface of the cutting blocks 18A to 18D. That is, when comparing the lower end of the pressing plate 19 with the lower ends of the cutting blocks 18A to 18, the lower end of the pressing plate 19 is at the lowest position.

[0021] The lifting table 14 is connected to the drive mechanism 12 by fixing the connecting table 142 to the sliding block 1233 of the drive mechanism 12 and two sliders 142. By driving the screw 123 to rotate forward and backward to raise or lower the sliding block 1233, the lifting table 14 is also driven to rise or fall simultaneously.

[0022] In the embodiment of the present invention, for example, the lower ends of the four cutting blocks 18A to 18D surrounding the rectangular body may be at the same height position. Alternatively, among the four cutting blocks 18A to 18D arranged in a rectangle, at least two opposite lower ends are at the same height position, the lower ends of the remaining two cutting blocks are at different positions from each other, and at a height position different from the lower ends of the aforementioned two cutting blocks. For example, the lower end of the first cutting block 18A and the lower end of the third cutting block 18C are at the same height position, the lower end of the second cutting block 18B and the lower end of the fourth cutting block 18D are at different height positions. The height positions of the lower ends of the four cutting blocks 18A to 18D can be implemented to have the same thickness or different thicknesses as the cutting blocks 18A to 18D. Or it is also possible to set the lower ends of the cutting blocks 18A to 18D at different height positions. For example, setting the lower end of the first cutting block 18A to be the lowest, the lower end of the second cutting block 18B to be the second lowest, the lower end of the third cutting block 18C to be the third lowest, and the lower end of the fourth cutting block 18D to be the highest, etc. Setting the lower ends of the cutting blocks 18A to 18D at different height positions can be implemented by setting the cutting blocks 18A to 18D at different height positions from each other.

[0023] The plate cutting machine 1 of this invention is mainly used for cutting brittle and hard plate materials 2 such as ceramic substrates. As shown in Figures 5, 7, and 8, before cutting the plate material 2, it is necessary to first draw the area to be cut on the surface of the plate material. For example, in the case of a ceramic substrate, a laser device is used to shine a laser onto the plate material 2 and engrave a rectangular cutting line 21 of an appropriate depth that will serve as the starting point for cutting the plate material. This cutting line 21 can be called a "break line" or "crack". Generally, the inner dimensions of the rectangle enclosed by such cutting line 21 correspond to the outer dimensions of the fixed table 11. The plate material 2, after the rectangular cutting line 21 has been cut out by laser light, is mounted on the fixed table 11, and a vacuum pump is activated to continuously extract air from the air holes of the fixed table 11, creating negative pressure in the air holes 11, thereby adsorbing and fixing the plate material 2 to the fixed table 11 (see Figure 7).

[0024] Next, the motor 121 of the drive mechanism 12 is activated, and the lifting platform 14 is lowered further by the aforementioned driving method until the pressing plate 19 presses and fixes the board material 2. Then, the cutting blocks 18A-18D, which continue to descend, press the board material 2, excluding the cutting line 21, along the edge of the cutting line 21 on the board material 2, thereby cutting and separating it (see Figure 8). Specifically, as described above, when the lower ends of the cutting blocks 18A-18D are at the same height position, the descending cutting blocks 18A-18D simultaneously apply vertical pressure along the edge of the cutting line 21 to cut the board material 2. When the lower ends of the first cutting block 18A and the third cutting block 18C are at the same low height, but the lower ends of the second cutting block 18B and the fourth cutting block 18D are at different heights and higher than the lower ends of the first cutting block 18A and the third cutting block 18C, the lifting platform 14 descends until the pressing plate 19 further presses and fixes the board material 2. Thereafter, the continuously descending first and third cutting blocks 18A and 18D first apply pressure along the edges of the opposing cutting lines 21 of the board material 2, and then the continuously descending second and fourth cutting blocks 18B and 18D apply pressure along the edges of the other opposing cutting lines 21 of the board material 2, thereby cutting the board material 2 in portions other than the cutting lines 21. Alternatively, as the height of the lower ends of the first cutting block 18A to the fourth cutting block 18D increases sequentially from the lowest to the highest, the lifting platform 14 is lowered by the pressing plate 19 until the sheet metal 2 is further pressed and fixed. Then, the first cutting block 18A to the fourth cutting blocks 18B, 18C, and 18D, which descend continuously, sequentially apply pressure along each edge of the cutting line 21 of the sheet metal 2, cutting and separating the sheet metal 2 other than the cutting line 21. During the process of applying pressure to the sheet metal 2, the stress received on both sides of the cutting line 21 is transmitted to the stress sensors 16A to 16D via the cutting blocks 18A to 18D and the connecting blocks 15A to 15D, respectively. When the sheet metal 2 is cut, the maximum stress detected by the stress sensors 16A to 16D is converted into an electronic signal and transmitted to the computer device, thus achieving the effect of 100% detection of the sheet metal 2 simultaneously with cutting without any oversights.

[0025] Furthermore, the cutting lines formed on the sheet material 2 are not limited to rectangles; they can also be formed into geometric shapes such as circles or polygons, depending on the needs of the actual product. In such cases, multiple cutting blocks can be constructed to match the shape of the cutting line, and cutting can be performed by applying vertical pressure to the edges of the cutting line.

[0026] In another embodiment of this invention (not shown in the drawings), the lifting platform 14 is fixed and the fixed table 11 is driven to move up or down by the drive mechanism 12, and similarly, the effect of cutting the board material 2 using the cutting block when the lifting platform 14 and the fixed table 11 are close to each other can be achieved.

[0027] When the sheet metal cutting machine 1 of this invention is applied, a method for cutting sheet metal that can simultaneously detect the strength of the sheet metal is provided, which includes the steps of forming a cutting line on the upper surface of the sheet metal 2, and cutting and separating the edge of the cutting line of the sheet metal 2 by applying vertical pressure to the sheet metal 1 along the edge of the cutting line using the sheet metal cutting machine 1. [Explanation of symbols]

[0028] 1. Board cutting machine 10 base 11 Fixed Table 12 Drive mechanism 120 Vertical Plate 121 Motor 1211 Main Pulley 122 belts 123 Screw 1231 Passive pulley 1232 Bearing base 1233 Sliding block 13 rails 14 Elevator 141 Place Table 1411 First groove (groove) 1412 Second groove (groove) 1413 Third groove (groove) 1414 Fourth groove (groove) 142 connection units 143 Slider 15A First connection block (connection block) 15B Second connection block (connection block) 15C Third connection block (connection block) 15D Fourth connection block (connection block) 16A First stress sensor (stress sensor) 16B Second stress sensor (stress sensor) 16C Third stress sensor (stress sensor) 16D Fourth stress sensor (stress sensor) 17 Fixing plate 18A First cutting block (cutting block) 18B Second Cutting Block (Cutting Block) 18C Third Cutting Block (Cutting Block) 18D Fourth Cutting Block (Cutting Block) 19. Pressing plate 2 Board material 21 Cutting line

Claims

1. A fixing table (11) for fixing the board material (2), A lifting platform (14) is positioned above the fixed table (11) and has multiple cutting blocks (18A, 18B, 18C, 18D) positioned below it, Each of the cutting blocks (18A, 18B, 18C, 18D) is connected to a stress sensor (16A, 16B, 16C, 16D), A drive mechanism (12) that drives the lifting platform (14) or the fixed table (11) to move up and down relative to each other in the vertical direction, The system includes a computer device electrically connected to the stress sensors (16A, 16B, 16C, 16D), A cutting line (21) is formed in advance on the upper surface of the plate material (2), and when the lifting platform (14) or the fixed table (11) are driven closer to each other, the multiple cutting blocks (18A, 18B, 18C, 18D) apply vertical pressure to the edge of the cutting line (21) of the plate material (2), thereby cutting and separating the edge of the cutting line (21) of the plate material (2), The stress experienced when the plate material (2) is cut is transmitted to the stress sensors (16A, 16B, 16C, 16D) via the cutting blocks (18A, 18B, 18C, 18D). The stress experienced when the plate material (2) is cut is detected by the stress sensors (16A, 16B, 16C, 16D), and the stress detected by the stress sensors (16A, 16B, 16C, 16D) is converted into an electronic signal, which is transmitted to the computer device to detect the strength of the plate material. A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

2. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, The aforementioned fixed table (11) is fixed in place. The drive mechanism (12) drives the lifting platform (14) up and down. A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

3. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, The aforementioned lifting platform (14) is fixed in place. The drive mechanism (12) drives the fixed table (11) to move up and down. A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

4. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, When the lower edges of each of the multiple cutting blocks (18A, 18B, 18C, 18D) are positioned at the same height, and the lifting platform (14) or the fixed table (11) is driven to move closer to each other, the multiple cutting blocks (18A, 18B, 18C, 18D) simultaneously apply vertical pressure to the edges of the cutting lines (21) of the sheet material (2), thereby cutting and separating the edges of the cutting lines (21) of the sheet material (2). A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

5. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, The lower ends of each of the multiple cutting blocks (18A, 18B, 18C, 18D) are set at different heights, and when the lifting platform (14) or the fixed table (11) is moved closer to each other by drive, the multiple cutting blocks (18A, 18B, 18C, 18D) sequentially apply vertical pressure to the board material (2) along the edge of the cutting line (21), from the one with the lowest lower end to the one with the highest lower end, thereby cutting and separating the edge of the board material (2) along the cutting line (21). A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

6. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, The fixed table (11) is provided with a plurality of air holes, and the plurality of air holes are connected to a vacuum pump. When the vacuum pump is operated, the air holes form a negative pressure, which attracts the plate material (2) placed on the fixed table (11). A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

7. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 1 and detect its strength, The lifting platform (14) includes a place table (141) which has four rectangular sides and four vertically penetrating grooves (1411, 1412, 1413, 1410), The system includes a connecting base (142) which is connected to one side of the place table (141) and connected to the drive mechanism (12), Multiple stress sensors (16A, 16B, 16C, 16D) are arranged above the place table (141), and multiple cutting blocks (18A, 18B, 18C, 18D) are arranged below the place table (141). Multiple stress sensors (16A, 16B, 16C, 16D) and multiple cutting blocks (18A, 18B, 18C, 18D) are connected to connecting blocks (15A, 15B, 15C, 15D), and multiple connecting blocks (15A, 15B, 15C, 15D) are housed in the grooves (1411141214131410). A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

8. A sheet material cutting machine (1) that can simultaneously cut the sheet material (2) described in Claim 7 and detect its strength, A press plate (19) is provided in the area surrounded by the multiple cutting blocks (18A, 18B, 18C, 18D) below the place table (141), and the position of the lower surface of the press plate (19) is lower than the height of the lowest lower end surface of the multiple cutting blocks (18A, 18B, 18C, 18D). A sheet metal cutting machine (1) that can simultaneously cut sheet metal (2) and detect its strength.

9. The steps include forming a cutting line (21) on the upper surface of the board material (2), The present invention includes the steps of using the sheet material cutting machine (1) according to any one of claims 1 to 8 to apply downward vertical pressure along the edge of the cutting line (21) of the sheet material (2) to cut and separate the edge of the cutting line (21) of the sheet material (2), and at the same time detecting the stress received when cutting the sheet material (2) with the stress sensors (16A, 16B, 16C, 16D), converting the stress detected by the stress sensors (16A, 16B, 16C, 16D) into an electronic signal and transmitting it to the computer device. A method for cutting sheet material that enables simultaneous cutting and strength detection of sheet material.

10. A method for cutting sheet material according to Claim 9, in which sheet material cutting and strength detection can be performed simultaneously, Multiple cutting blocks (18A, 18B, 18C, 18D) apply vertical pressure to the edges of each of the plate materials (2), cutting and separating the edges of the plate materials (2) along the cutting lines (21). A method for cutting sheet material that enables simultaneous cutting and strength detection of sheet material.

11. In a plate cutting method according to Claim 9 that enables simultaneous plate cutting and strength detection, Multiple cutting blocks (18A, 18B, 18C, 18D) sequentially apply downward vertical pressure along the edge of the cutting line (21) to cut and separate the edge of the cutting line (21) of the plate material (2). A method for cutting sheet material that enables simultaneous cutting and strength detection of sheet material.

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