Swing device and stone cutting method

Abstract

The application provides a swing device and a stone cutting method, which comprises a cutting unit, swing supporting pieces, arc-shaped slide rail assemblies and swing driving mechanisms; a diamond wire is wound on the cutting unit, and the diamond wire forms a cutting net surface at the bottom of the cutting unit; the swing supporting pieces are arranged on both sides of the cutting unit, and the middle part of the side of the cutting unit is rotationally connected with the swing supporting pieces; the arc-shaped slide rail assemblies are arranged at both ends of the two sides of the cutting unit; the swing supporting pieces on both sides are formed with two connecting arms, and each connecting arm is connected with an arc-shaped slide rail assembly; the swing driving mechanisms are arranged on each connecting arm, and the swing driving mechanisms are transmissionally connected with the arc-shaped slide rail assemblies. The application has the advantages that the cutting efficiency can be improved, the application is more flexible, and the stability of the swing of the cutting unit can be ensured.

Description

[Technical Field]

[0001] This invention relates to the field of stone cutting technology, and in particular to a swing device and a stone cutting method. [Background Technology]

[0002] In stone cutting, the traditional and commonly used cutting tools include saw blades, saw bands, or beaded wire saws. Their cutting principle is to weld diamond cutting heads onto saw blades or steel bands, or to string diamond cutting heads together to form a wire saw.

[0003] Because diamond cutting tips are relatively large and need to be attached to a metal substrate, a 3-10mm kerf is usually formed during the cutting process, which leads to problems such as stone waste and pollution. To address the problem of excessively large kerf in traditional cutting tools, diamond wire cutting machines were developed. For example, Chinese invention patent application CN202010766394.7 discloses a four-roller downward-pressing diamond wire stone cutting machine, which includes a frame, diamond wire, wire rollers, and a take-up and unwinding device. The diamond wire is wound around the wire rollers and connected to the take-up and unwinding device. The wire rollers include a first wire roller, a second wire roller, a third wire roller, and a fourth wire roller, all arranged horizontally. The first and second wire rollers are rotatably mounted on a mounting frame, as are the third and fourth wire rollers. The mounting frame is vertically movable and mounted on the frame. A drive mechanism for driving the mounting frame to move vertically is also included. The diamond wire is repeatedly wound around the first, second, third, and fourth wire rollers. Between the first and third wire rollers, the diamond wire forms a first mesh surface for cutting the stone; between the second and fourth wire rollers, it forms a second mesh surface; and between the first and second mesh surfaces, a space is formed for receiving the stone.

[0004] However, the existing diamond wire cutting machines for stone can only drive the mesh to move up and down to achieve flat cutting. But when cutting flat, the contact area between the mesh and the stone is large, the resistance is also large, and the cutting efficiency is low. In order to reduce the contact area between the mesh and the stone, the mesh can be designed to swing. Therefore, there is an urgent need to provide a swinging device that can drive the mesh to swing smoothly. [Summary of the Invention]

[0005] The technical problem to be solved by the present invention is to provide a swinging device and a stone cutting method, which can drive the mesh to swing smoothly during the cutting process, reduce the contact area between the mesh and the stone, and improve the cutting efficiency. This solves the problem that the existing diamond wire stone cutting machine can only drive the mesh to move up and down to achieve flat cutting, resulting in low cutting efficiency.

[0006] This invention is implemented as follows:

[0007] In a first aspect, a swinging device includes a cutting unit, a swinging support, an arc-shaped slide rail assembly, and a swinging drive mechanism, wherein a diamond wire is wound around the cutting unit, and the diamond wire forms a cutting mesh surface at the bottom of the cutting unit.

[0008] The cutting unit is equipped with the swing support on both sides, and the middle of the side of the cutting unit is rotatably connected to the swing support; the two sides of the cutting unit refer to the two surfaces that the diamond wire does not pass through when the cutting unit is in operation.

[0009] The two ends of both sides of the cutting unit are provided with the arc-shaped slide rail assembly, and the two ends of the side refer to the two ends along the horizontal direction; the swing support members on both sides each form two connecting arms, and each connecting arm is connected to one of the arc-shaped slide rail assemblies; each connecting arm is provided with the swing drive mechanism, and the swing drive mechanism is connected to the arc-shaped slide rail assembly in a transmission connection.

[0010] Furthermore, the swing support is disposed on the lower side of the cutting unit, and the middle position of the lower side of the cutting unit is rotatably connected to the middle position of the swing support via a pivot.

[0011] Furthermore, the arc-shaped slide rail assemblies are symmetrically arranged at both ends of the two sides of the cutting unit, and the inner concave surfaces of the two arc-shaped slide rail assemblies on the same side face each other.

[0012] Furthermore, the swing drive mechanisms on each of the connecting arms operate synchronously; and the two swing drive mechanisms on the same side rotate in the same direction.

[0013] Furthermore, the arc-shaped slide rail assembly includes an arc-shaped track and at least one connecting seat slidably connected to the arc-shaped track; the arc-shaped track is disposed on the cutting unit, and the connecting arm is fixedly connected to the connecting seat.

[0014] Furthermore, the swing drive mechanism includes a swing drive motor, a drive gear, and roller pins; an assembly groove is formed on the outer convex surface of the arc track along the swing direction, and a plurality of roller pins are installed in the assembly groove at equal intervals and rotating within the groove.

[0015] The swing drive motor is fixed on the connecting arm, the drive gear is fixedly connected to the output end of the swing drive motor, and the drive gear is engaged with the rolling pin in the assembly groove.

[0016] Furthermore, a limiting groove is formed on the inner concave surface of the arc-shaped track along the swing direction, and a roller is provided on the connecting seat to cooperate with the limiting groove and the assembly groove to achieve sliding.

[0017] Furthermore, the swing support has a plate-like structure, and reinforcing ribs are provided on both sides of the swing support.

[0018] Furthermore, the swing support includes a support main board, which has an inverted trapezoidal structure; the top two ends of the support main board extend upward to form the connecting arms.

[0019] Secondly, a stone cutting method, the method utilizing the aforementioned oscillating device; the method includes the following steps:

[0020] During the process of controlling the cutting mesh of the cutting unit to cut the stone, the various swing drive mechanisms are controlled to work synchronously according to the actual cutting requirements, and the two ends of the cutting unit are driven to slide along the arc trajectory of the arc slide rail assembly to the required position, so that the cutting mesh and the stone form the required cutting angle.

[0021] By adopting the technical solution of the present invention, at least the following beneficial effects are achieved: By providing swing supports on both sides of the cutting unit, and designing the swing supports to have two connecting arms, and by providing arc-shaped slide rail assemblies at both ends of both sides of the cutting unit, the middle of the side of the cutting unit is rotatably connected to the swing supports, each connecting arm is connected to an arc-shaped slide rail assembly, and each arc-shaped slide rail assembly is driven by a swing drive mechanism; thus, during the process of cutting stone using the cutting unit, the swing drive mechanism can drive both ends of the cutting unit along the arc-shaped slide rail assembly. The cutting unit moves to the desired position, allowing the cutting mesh surface to form the required cutting angle with the stone, thereby reducing the contact area between the cutting mesh surface and the stone. It can even achieve point contact between the cutting mesh surface and the stone. Therefore, compared with the existing diamond wire cutting machine for stone, which can only drive the mesh surface to move up and down to achieve flat cutting, it can improve cutting efficiency and is more flexible to use. At the same time, arc-shaped slide rail assemblies are set at both ends of the two sides of the cutting unit, that is, a total of 4 arc-shaped slide rail assemblies are set. Each arc-shaped slide rail assembly is connected to a connecting arm, which can ensure the stability of the cutting unit's swing. [Attached Image Description]

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is one of the three-dimensional structural diagrams of a swing device according to the present invention;

[0024] Figure 2 This is a second three-dimensional structural diagram of a swing device according to the present invention;

[0025] Figure 3 This is the third three-dimensional structural diagram of a swing device according to the present invention;

[0026] Figure 4 This is a structural diagram of the motherboard supporting the present invention;

[0027] Figure 5 This is a structural diagram of the auxiliary support plate in this invention;

[0028] Figure 6 This is a schematic diagram illustrating the transmission principle achieved by the drive gear and the rolling pin in this invention.

[0029] Figure 7 This is one of the assembly structure diagrams of the arc-shaped slide rail assembly and the swing drive mechanism in this invention;

[0030] Figure 8 This is the second assembly structure diagram of the arc-shaped slide rail assembly and the swing drive mechanism in this invention;

[0031] Figure 9 This is a schematic diagram of the installation structure of the swing device of the present invention in specific use.

[0032] Explanation of reference numerals in the attached figures:

[0033] Swing device 100;

[0034] Cutting unit 1, diamond wire 11, cutting mesh 111, main frame 12, wire roller 13, wire feeding mechanism 14, wire taking-up mechanism 15, wire roller drive motor 16;

[0035] Swing support 2, connecting arm 21, reinforcing rib 22, main support 23, support base 24, auxiliary support plate 25;

[0036] Arc-shaped slide rail assembly 3, arc-shaped track 31, mounting groove 311, limiting groove 312, connecting seat 32, roller 33;

[0037] Swing drive mechanism 4, swing drive motor 41, drive gear 42, rolling pin 43;

[0038] Shaft 5;

[0039] Lifting mechanism 6;

[0040] Rack 7.

Detailed Implementation Methods

[0041] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0043] Example 1

[0044] Please see Figures 1 to 9 As shown in the preferred embodiment of the present invention, the swing device 100 includes a cutting unit 1, a swing support 2, an arc-shaped slide rail assembly 3, and a swing drive mechanism 4. A diamond wire 11 is wound around the cutting unit 1, and a cutting mesh surface 111 is formed on the bottom of the cutting unit 1 by the diamond wire 11. During operation, the cutting mesh surface 111 can be used to cut the stone. Because the diamond wire 11 is relatively thin, compared with existing cutting tools such as saw blades, saw bands, and beaded wire saws, the cutting kerf of the stone can be reduced, thereby avoiding waste and reducing dust generation, thus reducing pollution.

[0045] The cutting unit 1 is equipped with the swing support 2 on both sides, and the middle part of the side of the cutting unit 1 is rotatably connected to the swing support 2, so that the cutting unit 1 can swing; the two sides of the cutting unit 1 refer to the two surfaces that the diamond wire 11 does not pass through when the cutting unit 1 is in working state.

[0046] The two ends of both sides of the cutting unit 1 are provided with the arc-shaped slide rail assembly 3, where the two ends of the side refer to the two ends along the horizontal direction; the swing support members 2 on both sides each form two connecting arms 21, and each connecting arm 21 is connected to an arc-shaped slide rail assembly 3; each connecting arm 21 is provided with a swing drive mechanism 4, which is connected to the arc-shaped slide rail assembly 3 for transmission, so as to drive the two ends of the cutting unit 1 to move along the arc-shaped trajectory of the arc-shaped slide rail assembly 3.

[0047] This invention provides swing supports 2 on both sides of the cutting unit 1, each with two connecting arms 21. Arc-shaped slide rail assemblies 3 are located at both ends of both sides of the cutting unit 1. The middle of the side of the cutting unit 1 is rotatably connected to the swing supports 2. Each connecting arm 21 is connected to an arc-shaped slide rail assembly 3, and each arc-shaped slide rail assembly 3 is connected to a swing drive mechanism 4. This allows the cutting unit 1 to move along the arc-shaped trajectory of the arc-shaped slide rail assembly 3 to the desired position during the cutting process. The cutting mesh 111 of the cutting unit 1 can form the required cutting angle with the stone, thereby reducing the contact area between the cutting mesh 111 and the stone, and even making the cutting mesh 111 and the stone point contact. Therefore, compared with the existing stone diamond wire cutting machine that can only drive the mesh to move up and down to achieve flat cutting, it can improve cutting efficiency and is more flexible to use. At the same time, arc-shaped slide rail assemblies 3 are provided at both ends of the two sides of the cutting unit 1, that is, a total of 4 arc-shaped slide rail assemblies 3 are provided. Each arc-shaped slide rail assembly 3 is connected to a connecting arm 21, which can ensure the stability of the swing of the cutting unit 1.

[0048] In some embodiments of the present invention, the swing support 2 is disposed on the lower side of the cutting unit 1, and the middle position of the lower side of the cutting unit 1 is rotatably connected to the middle position of the swing support 2 via a rotating shaft 5.

[0049] Because the present invention requires a lifting mechanism to drive the cutting unit 1 downward when cutting stone, so that the cutting mesh surface 111 of the cutting unit 1 applies downward pressure to the stone to better cut the stone, and the cutting unit 1 needs to be oscillating and adjusted, the lifting mechanism can only be connected to the oscillating support 2; the present invention adopts a rotating connection between the middle position of the lower side of the cutting unit 1 and the middle position of the oscillating support 2, which not only keeps the two ends of the cutting unit 1 balanced, but also helps the cutting mesh surface 111 of the cutting unit 1 to better apply downward pressure to the stone.

[0050] In some embodiments of the present invention, in order to enable the two ends of the cutting unit 1 to move smoothly along the arc trajectory of the arc slide rail assembly 3, the arc slide rail assembly 3 is symmetrically arranged at both ends of the two sides of the cutting unit 1, and the inner concave surfaces of the two arc slide rail assemblies 3 on the same side are arranged facing each other.

[0051] In some embodiments of the present invention, the swing drive mechanisms 4 on each of the connecting arms 21 operate synchronously, and the two swing drive mechanisms 4 on the same side rotate in the same direction, so that each of the swing drive mechanisms 4 can drive the two ends of the cutting unit 1 to move synchronously.

[0052] In some embodiments of the present invention, please refer to the following: Figure 7 and Figure 8 As shown, the arc-shaped slide rail assembly 3 includes an arc-shaped track 31 and at least one connecting seat 32 slidably connected to the arc-shaped track 31; the arc-shaped track 31 is disposed on the cutting unit 1, and the connecting arm 21 is fixedly connected to the connecting seat 32. Since the connecting seat 32 is slidably connected to the arc-shaped track 31, the connecting seat 32 is fixedly connected to the connecting arm 21, the arc-shaped track 31 is fixedly connected to the cutting unit 1, and the cutting unit 1 is rotatably connected to the swing support 2, the swing drive mechanism 4 can drive both ends of the cutting unit 1 to move along the arc-shaped trajectory of the arc-shaped track 31, so that the cutting unit 1 can drive the cutting mesh surface 111 to swing and adjust.

[0053] In some embodiments of the present invention, please refer to the following: Figures 6-8 The swing drive mechanism 4 shown includes a swing drive motor 41, a drive gear 42, and roller pins 43; an assembly groove 311 is formed on the outer convex surface of the arc track 31 along the swing direction, and a plurality of roller pins 43 are installed in the assembly groove 311 at equal intervals and rotating within it.

[0054] The swing drive motor 41 is fixed on the connecting arm 21, and the drive gear 42 is fixedly connected to the output end of the swing drive motor 41. The drive gear 42 is meshed with the rolling pin 43 in the mounting groove 311. In actual operation, the swing drive mechanism 4 drives the drive gear 42 to rotate through the swing drive motor 41. During the rotation, the drive gear 42 drives the arc track 31 to move, thereby driving the two ends of the cutting unit 1 to move and achieve adjustment.

[0055] The present invention designs a swing drive mechanism 4 including a swing drive motor 41, a drive gear 42 and roller pins 43, and installs several roller pins 43 at equal intervals in the mounting groove 311 of the arc track 31, so that the drive gear 42 can be used to drive the arc track 31 to move during operation. Since the vibration and noise generated when the drive gear 42 and roller pins 43 are in contact are relatively small, vibration and working noise can be reduced.

[0056] In some embodiments of the present invention, a limiting groove 312 is formed on the inner concave surface of the arc-shaped track 31 along the swing direction, and a roller 33 is provided on the connecting seat 32 to slide in cooperation with the limiting groove 311 and the assembly groove 312. In a specific implementation of the present invention, since a rolling pin 43 is also provided in the assembly groove 312, the roller 33 can be made to abut against the outside of the rolling pin 43.

[0057] The present invention designs the connecting seat 32 to have a roller 33 that cooperates with the limiting groove 311 and the assembly groove 312 to achieve sliding. On the one hand, the roller 33 can be used to limit the connecting seat 32 so that the connecting seat 32 will not detach from the arc track 31. On the other hand, the roller 33 can roll during use, which can ensure that the arc track 31 can drive the cutting unit 1 to swing more smoothly.

[0058] In some embodiments of the present invention, the swing support 2 has a plate-like structure, and reinforcing ribs 22 are provided on both sides of the swing support 2. By designing the swing support 2 to have a plate-like structure, the overall structure can be made more compact and aesthetically pleasing; at the same time, providing reinforcing ribs 22 on both sides of the swing support 2 can effectively improve the support strength of the entire swing support 2.

[0059] In some embodiments of the present invention, the swing support 2 includes a main support plate 23, which has an inverted trapezoidal structure; the top two ends of the main support plate 23 extend upward to form the connecting arms 21. More specifically, the swing support 2 also includes a support base 24 and an auxiliary support plate 25. The main support plate 23 is fixedly disposed at one end of the support base 24, and the auxiliary support plate 25 is fixedly disposed at the other end of the support base 24. Both the main support plate 23 and the auxiliary support plate 25 are rotatably connected to the rotating shaft 5 to better support the entire cutting unit 1. Preferably, the auxiliary support plate 25 has a triangular structure to improve its support strength.

[0060] In some embodiments of the present invention, please refer to the following: Figures 1-3 The cutting unit 1 shown includes a main frame 12, a wire roller 13, a wire feeding mechanism 14, a wire take-up mechanism 15, and a wire roller drive motor 16. The main frame 12 is a square frame.

[0061] The main frame 12 has four corners where the wire rollers 13 are rotatably mounted. Each wire roller 13 is connected to a wire roller drive motor 16, which drives the wire roller 13 to rotate, ensuring that the diamond wire 11 can be transmitted more smoothly to achieve cutting. The diamond wire 11 is repeatedly wound around each wire roller 13 and forms the cutting mesh surface 111 at the bottom of the main frame 12. The wire feeding mechanism 14 is located on the end face of one end of the main frame 12, and the wire take-up mechanism 15 is located on the end face of the other end of the main frame 12. One end of the diamond wire 11 is connected to the wire feeding mechanism 14, and the other end of the diamond wire 11 is connected to the wire take-up mechanism 15.

[0062] In operation, the cutting unit 1 releases the diamond wire 11 wound on the wire release mechanism 14 and simultaneously takes the diamond wire 11 back up through the wire take-up mechanism 15. Since the diamond wire 11 is repeatedly wound on the four wire rollers 13 and forms a cutting mesh surface 111 at the bottom of the main frame 12, the diamond wire 11 on the cutting mesh surface 111 can cut the stone during the wire release process of the wire release mechanism 14 and the wire take-up process of the wire take-up mechanism 15.

[0063] Please refer to the following carefully. Figure 9 As shown, in practical use, the swing device 100 of the present invention requires both swing support members 2 to be installed on the frame 7 via the lifting mechanism 6. In this way, during actual operation, the lifting mechanism 6 can be used to drive the entire swing device 100 to move up and down to cut the stone. The lifting mechanism 6 can be a screw lifting mechanism. At the same time, during the stone cutting process, each swing drive mechanism 4 can be used to drive the two ends of the cutting unit 1 to slide along the arc trajectory of the arc slide rail assembly 3 to the required position, so that the cutting mesh surface 111 and the stone form the required cutting angle, thereby reducing the contact area between the cutting mesh surface 111 and the stone and improving the cutting efficiency.

[0064] Example 2

[0065] Please see Figures 1 to 9 As shown in the figure, a preferred embodiment of a stone cutting method of the present invention is provided. The method requires the use of a swing device 100. For the specific structure of the swing device 100, please refer to the detailed description of Embodiment 1, which will not be repeated here.

[0066] The method includes the following steps: during the process of controlling the cutting mesh 111 of the cutting unit 1 to cut the stone, the various swing drive mechanisms 4 are controlled to work synchronously according to the actual cutting requirements, and the two ends of the cutting unit 1 are driven to slide along the arc trajectory of the arc slide rail assembly 3 to the required position, that is, the entire cutting unit 1 is driven to swing around the rotating shaft 5 as the rotation center, so that the cutting mesh 111 and the stone form the required cutting angle, thereby reducing the contact area between the cutting mesh 111 and the stone and improving the cutting efficiency.

[0067] When the cutting mesh 111 of the cutting unit 1 cuts the stone, the wire feeding mechanism 14 feeds the diamond wire 11 wound on it, and the wire take-up mechanism 15 takes the diamond wire 11 back in. Simultaneously, the wire roller drive motor 16 drives each wire roller 13 to rotate, causing the diamond wire 11 on the cutting mesh 111 to continuously move, thus cutting the stone. During the stone cutting process, the lifting mechanism 6 drives the entire swing device 100 downwards, allowing the diamond wire 11 to cut the stone downwards. After cutting is completed, the lifting mechanism 6 drives the entire swing device 100 back upwards to prepare for further stone cutting.

[0068] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A swinging device, comprising a cutting unit, wherein a diamond wire is wound around the cutting unit, and the diamond wire forms a cutting mesh surface at the bottom of the cutting unit; characterized in that: It also includes a swing support, an arc-shaped slide rail assembly, and a swing drive mechanism; The cutting unit is equipped with the swing support on both sides, and the middle of the side of the cutting unit is rotatably connected to the swing support; the two sides of the cutting unit refer to the two surfaces that the diamond wire does not pass through when the cutting unit is in operation. The two ends of both sides of the cutting unit are provided with the arc-shaped slide rail assembly, and the two ends of the side refer to the two ends along the horizontal direction; the swing support members on both sides each form two connecting arms, and each connecting arm is connected to one of the arc-shaped slide rail assemblies; each connecting arm is provided with the swing drive mechanism, and the swing drive mechanism is connected to the arc-shaped slide rail assembly in a transmission connection. The arc-shaped slide rail assembly includes an arc-shaped track and at least one connecting seat slidably connected to the arc-shaped track. The arc-shaped track is mounted on the cutting unit, and the connecting arm is fixedly connected to the connecting seat. An assembly groove is formed on the outer convex surface of the arc-shaped track along the swing direction, and a limiting groove is formed on the inner concave surface of the arc-shaped track along the swing direction. The connecting seat is provided with a roller that cooperates with the limiting groove and the assembly groove to achieve sliding. The swing drive mechanism includes a swing drive motor, a drive gear, and roller pins. Several roller pins are rotatably installed in the assembly groove at equal intervals. The swing drive motor is fixed on the connecting arm, and the drive gear is fixedly connected to the output end of the swing drive motor. The drive gear meshes with the roller pins in the assembly groove for transmission. The swing support is located on the lower side of the cutting unit, and the middle position of the lower side of the cutting unit is rotatably connected to the middle position of the swing support through a rotating shaft. The swing support has a plate-like structure, and reinforcing ribs are provided on both sides of the swing support. The swing support includes a support main plate, which has an inverted trapezoidal structure. The top two ends of the support main plate extend upward to form the connecting arm.

2. The swinging device as described in claim 1, characterized in that: The arc-shaped slide rail assemblies are symmetrically arranged at both ends of the two sides of the cutting unit, and the inner concave surfaces of the two arc-shaped slide rail assemblies on the same side face each other.

3. The swinging device as described in claim 1, characterized in that: The swing drive mechanisms on each of the connecting arms operate synchronously; and the two swing drive mechanisms on the same side rotate in the same direction.

4. A method for cutting stone, characterized in that: The method uses the swing device as described in any one of claims 1-3; the method includes the following steps: During the process of controlling the cutting mesh of the cutting unit to cut the stone, the various swing drive mechanisms are controlled to work synchronously according to the actual cutting requirements, and the two ends of the cutting unit are driven to slide along the arc trajectory of the arc slide rail assembly to the required position, so that the cutting mesh and the stone form the required cutting angle.

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