CN113400485A - Stone carving, cutting, grinding and polishing system with mechanical arm - Google Patents

Stone carving, cutting, grinding and polishing system with mechanical arm Download PDF

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Publication number
CN113400485A
CN113400485A CN202110795422.2A CN202110795422A CN113400485A CN 113400485 A CN113400485 A CN 113400485A CN 202110795422 A CN202110795422 A CN 202110795422A CN 113400485 A CN113400485 A CN 113400485A
Authority
CN
China
Prior art keywords
mechanical arm
stone
cutting
grinding
carving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110795422.2A
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Chinese (zh)
Inventor
徐西鹏
尹方辰
武沙桐
黄辉
黄国钦
崔长彩
黄身桂
黄吉祥
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Huaqiao University
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Huaqiao University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaqiao University filed Critical Huaqiao University
Priority to CN202110795422.2A priority Critical patent/CN113400485A/en
Publication of CN113400485A publication Critical patent/CN113400485A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/003—Multipurpose machines; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/09—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with filtering bands, e.g. movable between filtering operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/30—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor to form contours, i.e. curved surfaces, irrespective of the method of working used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/005—Devices for the automatic drive or the program control of the machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention provides a stone carving, cutting, grinding and polishing system with a mechanical arm, which comprises: the automatic cutting machine comprises a mechanical arm base, a mechanical arm body, a mechanical arm control cabinet, a water cooling system for cooling the control cabinet, a mechanical arm tail end main shaft, a rotary table linked with the mechanical arm, a carving tool library, a scraper chip removal system, a chassis chip flushing system and a paper bag filter system; one end of the mechanical arm body is connected with the mechanical arm base, the other end of the mechanical arm body is connected with a main shaft at the tail end of the mechanical arm, the scraper chip removal system is used for removing stone chips of the rotary table, cooling liquid sprayed out of the water cooling system is mixed and flows into the paper bag filter system to be filtered, and then clean cooling liquid is obtained again to be recycled; and a tool used for being arranged on the main shaft at the tail end of the mechanical arm is arranged in the carving tool library. The stone carving, cutting, grinding and polishing system of the mechanical arm utilizes the six mechanical arms to match with various processing tools, the automatic processing of the whole process is realized, the green and efficient processing of the stone carving industry is completed, and the stone carving, cutting, grinding and polishing system has important significance for the development of the whole stone carving industry.

Description

Stone carving, cutting, grinding and polishing system with mechanical arm
Technical Field
The invention relates to the field of stone numerical control processing, in particular to a three-dimensional stone carving special-shaped stone processing system.
Background
The stone carving as an ancient art culture product has important cultural connotation so far, and still serves as an important artwork to be inherited today. Along with the improvement of people's quality of life and the promotion of aesthetic level, the demand of three-dimensional stone material sculpture product is further increased to trades such as building gardens outdoor scene arrangement, and traditional semi-automatic combines to carve special-shaped stone material by hand and has gradually can not satisfy the demand in market, and full-automatic six arm stone material sculpture all has very big improvement to the precision and the efficiency of processing. However, the existing six-axis mechanical arm only focuses on the processing of the grinding process of the full-automatic stone carving process, and when a square blank is changed into a rough machining model, a grinding head is adopted for grinding massive materials into powder for surrounding redundant materials, so that the serious waste of the materials is caused, the utilization rate of the materials is reduced, and the processing time is wasted, and the method violates the concept of green and efficient processing. The method does not completely remove the manual influence, and the operators demand a better working environment under the large background that the processing craft gradually runs off, so that the whole process integration of sawing, grinding and polishing of the stone raw material is realized, and the realization of the real automation is very important. In the automatic machining process, a large amount of cooling water is needed by the tool to cool and discharge the stone powder removed in the machining process of the mechanical arm, so that a large amount of water resources are wasted, and the recycling of water is also an essential link.
Disclosure of Invention
The invention aims to overcome the defects in the existing semi-automatic stone carving processing, and provides a mechanical arm stone carving, cutting, grinding and polishing system.
In order to solve the technical problem, the invention provides a stone carving, cutting, grinding and polishing system with a mechanical arm, which comprises: the automatic cutting machine comprises a mechanical arm base, a mechanical arm body, a mechanical arm control cabinet, a water cooling system for cooling the control cabinet, a mechanical arm tail end main shaft, a rotary table linked with the mechanical arm, a carving tool library, a scraper chip removal system, a chassis chip flushing system and a paper bag filter system;
one end of the mechanical arm body is connected with the mechanical arm base, and the other end of the mechanical arm body is connected with the main shaft at the tail end of the mechanical arm; the scraper chip removal system is used for removing stone chips of the rotary table, and the chassis chip flushing system utilizes cooling liquid sprayed by the water cooling system to be mixed with the stone chips and then flows into the paper bag filter system for filtering, so that clean cooling liquid is obtained again for recycling;
and a tool used for being arranged on the main shaft at the tail end of the mechanical arm is arranged in the carving tool library.
In a preferred embodiment: the mechanical arm body is a six-shaft mechanical arm.
In a preferred embodiment: the engraving tool library stores a drilling cutter, a finish machining ball head cutter, a rough machining flat bed cutter, a saw blade, a stone polishing tool, a stone rope saw machine, a tool setting device and a rack.
In a preferred embodiment: still include the peripheral guard shield of panel beating, arm main part, arm base, revolving stage, sculpture tool storehouse, scraper blade chip removal system set up in the space that the peripheral guard shield of panel beating surrounds.
In a preferred embodiment: the paper bag filter system adopts non-woven fabrics as a filter element.
In a preferred embodiment: the paper bag filter system comprises a water flow buffer device and an arc-shaped filter tank; the non-woven fabrics sets up in the arc filtering ponds.
In a preferred embodiment: a liquid level relay is arranged in the arc-shaped filter tank, a normally open contact of the liquid level relay is connected with a speed reducing motor, and one end of the non-woven fabric is wound on an output rotating shaft of the speed reducing motor;
when the liquid level in the arc-shaped filter tank exceeds a set threshold value, a floating ball of the liquid level relay is lifted; and the normally open contact of the liquid level relay is closed, so that the speed reducing motor is started to wind the waste non-woven fabric on the output rotating shaft of the speed reducing motor.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides a mechanical arm stone carving, cutting, grinding and polishing system, which utilizes a six-axis mechanical arm to be matched with a rotatable workbench, utilizes a wire saw, a grinding tool and a polishing tool, combines corresponding software to realize full-automatic three-dimensional special-shaped stone carving and processing, greatly widens the range of a processable model, not only realizes the full utilization of stone, but also saves the manual participation step, reduces the complicated carrying process of switching fields, obviously improves the processing efficiency, also enables the stone carving and processing to be separated from the manual experience participation, simultaneously realizes the recycling of water in the processing process, saves a large amount of water resources, completes the green and efficient full-automatic stone carving, and has important significance for the development of the whole stone carving industry.
Drawings
FIG. 1 is an overall perspective view of an embodiment of the present invention;
FIG. 2 is an overall elevation view of an embodiment of the present invention;
fig. 3 is an overall top view of an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.
Referring to fig. 1-3, a mechanical arm stone carving, cutting, grinding and polishing system comprises: the automatic chip removing machine comprises a mechanical arm base 1, a mechanical arm body 2, a mechanical arm control cabinet 3, a water cooling system 4 for cooling the control cabinet, a mechanical arm tail end spindle 5, a rotary table 6 linked with the mechanical arm, a carving tool library 7, a scraper chip removal system 8, a chassis chip flushing system and a paper bag filter system 9;
one end of the mechanical arm body 2 is connected with the mechanical arm base 1, and the other end of the mechanical arm body is connected with the mechanical arm tail end main shaft 5; the scraper chip removal system 8 is used for removing stone chips of the rotary table 6, and the chassis chip removal system mixes the cooling liquid sprayed by the water cooling system 4 with the stone chips and then flows into the paper bag filter system 9 for filtering, so that clean cooling liquid is obtained again for recycling;
and a tool for being mounted on the main shaft 5 at the tail end of the mechanical arm is arranged in the carving tool library 7.
The engraving tool library 7 used in the system includes the following processing tools:
the rope saw is used for cutting stone blank into blocks, and the method for processing stone has the advantages of high processing efficiency and material saving. The structure mainly comprises the following parts "
The 5.3mm diamond wire saw is directly contacted with the stone material and is responsible for cutting part, and the pressing force of the diamond wire saw is controlled by a tensioning cylinder to keep the diamond wire saw around three guide wheels. The tensioning cylinder is composed of a motor and a tensioning wheel, a leftward pulling force is transmitted to the tensioning wheel by the motor to enable the rope saw to be tensioned on the guide wheel, the rope saw for achieving the cutting purpose also comprises a stepping motor to drive the guide wheel to rotate, the cutting speed of the rope saw during saw cutting is controlled, the rope saw is composed of two rectangular plates, and the strength and the rigidity during saw cutting are met.
The saw blade cutter is also used as a sawing tool, can be arranged on a main shaft of a six-shaft mechanical arm, and is different from a rope saw in size limitation, the cutting range of the saw blade is limited by subtracting the middle connecting part from the radius of the saw blade, the cutting length of the rope saw is the middle distance between two guide wheels of the rope saw, and the saw blade is only suitable for cutting blanks with a small range.
And the flat-bottom milling cutter is used for rough machining in the stone carving process, and removing the residual part of the rough machined blank after sawing to obtain the approximate outline of the three-dimensional special-shaped stone carving.
And the ball-end milling cutter is used for finish machining in the stone carving process, finely processes the rough contour after rough machining, removes the residual height of the rough contour, and is attached to an actual workpiece model.
And fifthly, the drilling knife is used for drilling possibly existing in the stone carving process.
And sixthly, the polishing tool is used for the polishing process after finish machining, and the surface quality of the model after finish machining still has the problem of insufficient smoothness although no residual height exists, so that one-step polishing is needed to meet the requirement on the roughness of the surface of the model. Which consists of a high-frequency motor and a polishing disk.
Different processing tools are numbered in advance in the system, the tool number to be used and the specific position coordinate of the tool holder where the corresponding tool number is located are added into the track code, the mechanical arm can identify the selected number, before processing, the mechanical arm automatically picks the tools needed to be used in the step before the different tools, such as the saw cutting machine, the grinding tool and the polishing head, move to the tools to be used before processing, and after the picking is completed, the tool setting instrument on the tool holder is used for carrying out tool setting operation.
Tool setting firstly needs to determine the length and the diameter of a tool, then the tool coordinate of a mechanical arm is close to a tool setting gauge in a vertically downward mode, the tool length is fed back to the tool setting gauge after the contact, and the mechanical arm is lifted and records the tool length as a part of track parameters.
After the sawing is finished, the mechanical arm is required to drive the spindle system to grab the grinding tool to further remove the material, and the spindle drives the tool to rotate to provide grinding force required by processing. And finally processing the model by using a polishing tool to obtain a finished product workpiece meeting the use requirement.
In the processing process, water as cooling liquid can be recycled in the system, wherein a scraper type chip removal system is mainly used, and a paper tape filter is used for filtering stone powder in the water as shown in figure 3. When the scraper type chip removal system works, firstly, stone chips which are difficult to be washed away by water flow on the rotary table 6 are removed, the stone chips and the water flow are mixed and brought into a paper tape filter, polluted liquid carrying impurities flows into an arc-shaped filter tank with larger height through a water flow buffer device, the impurities in the liquid are filtered by non-woven fabrics to form filter cakes, the filter cakes are thicker and thicker, the liquid level of the polluted liquid rises, a floating ball of a liquid level relay floats, a speed reducer is started and dragged to replace the non-woven fabrics, the filter cakes fall into a filter residue box, and waste non-woven fabrics are rolled up by the speed reducer; after the non-woven fabric is updated, the liquid level of the dirty liquid drops, the speed reducer stops rotating, and the equipment enters the next purification cycle. The purified liquid enters a recycling link.
When the mechanical arm stone carving, cutting, grinding and polishing system is used for carving stones, the mechanical arm stone carving, cutting, grinding and polishing system comprises the following steps:
1) and (3) cutting the model, namely separating the square blank into a plurality of rough machining blanks with different shapes by utilizing a separating surface principle, and generating a machining track file by imitating the track of the separating surface. It should be noted that the track file includes both the machining position and the robot arm posture.
2) And inputting the track file into a mechanical arm controller by using mobile storage equipment or network connection line transmission and the like to read and process the track file. It should be noted that the rotation of the wire saw and the tension of the wire saw in the wire saw need to be controlled by a motor independently, which is not in the working range of the mechanical arm system, and the machining process needs to use water as cooling liquid to achieve cooling and suppress dust.
3) And obtaining the rough machining blank which is partitioned after machining, wherein the rough machining blank obtained from the three-dimensional software cannot be directly used because the machining error is not prevented by the error existing in the wire saw machining, and the better method is to use a three-dimensional scanner to scan and obtain a specific three-dimensional model of the rough machining blank which is used as the blank basis for the next grinding machining.
Furthermore, before the mechanical arm processes by using the track code, the four sides of the blank need to be clamped by using a standard clamp, and the blank is fixed on the turntable 6, so that the processing precision is prevented from being influenced by deviation caused by the influence of processing force in the processing process. After the sawing is completed, the rough machined blank needs to be clamped for the second time and then subjected to a grinding process.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.

Claims (7)

1. The utility model provides a mechanical arm stone material sculpture is surely ground and is thrown system which characterized in that includes: the automatic cutting machine comprises a mechanical arm base, a mechanical arm body, a mechanical arm control cabinet, a water cooling system for cooling the control cabinet, a mechanical arm tail end main shaft, a rotary table linked with the mechanical arm, a carving tool library, a scraper chip removal system, a chassis chip flushing system and a paper bag filter system;
one end of the mechanical arm body is connected with the mechanical arm base, and the other end of the mechanical arm body is connected with the main shaft at the tail end of the mechanical arm; the scraper chip removal system is used for removing stone chips of the rotary table, and the chassis chip flushing system utilizes cooling liquid sprayed by the water cooling system to be mixed with the stone chips and then flows into the paper bag filter system for filtering, so that clean cooling liquid is obtained again for recycling;
and a tool used for being arranged on the main shaft at the tail end of the mechanical arm is arranged in the carving tool library.
2. The stone carving, cutting, grinding and polishing system of the mechanical arm as claimed in claim 1, wherein: the mechanical arm body is a six-shaft mechanical arm.
3. The stone carving, cutting, grinding and polishing system of the mechanical arm as claimed in claim 1, wherein: the engraving tool library stores a drilling cutter, a finish machining ball head cutter, a rough machining flat bed cutter, a saw blade, a stone polishing tool, a stone rope saw machine, a tool setting device and a rack.
4. The stone carving, cutting, grinding and polishing system of the mechanical arm as claimed in claim 1, wherein: still include the peripheral guard shield of panel beating, arm main part, arm base, revolving stage, sculpture tool storehouse, scraper blade chip removal system set up in the space that the peripheral guard shield of panel beating surrounds.
5. The stone carving, cutting, grinding and polishing system of the mechanical arm as claimed in claim 1, wherein: the paper bag filter system adopts non-woven fabrics as a filter element.
6. The stone carving, cutting, grinding and polishing system with mechanical arms as claimed in claim 5, wherein: the paper bag filter system comprises a water flow buffer device and an arc-shaped filter tank; the non-woven fabrics sets up in the arc filtering ponds.
7. The stone carving, cutting, grinding and polishing system with mechanical arms as claimed in claim 6, wherein: a liquid level relay is arranged in the arc-shaped filter tank, a normally open contact of the liquid level relay is connected with a speed reducing motor, and one end of the non-woven fabric is wound on an output rotating shaft of the speed reducing motor;
when the liquid level in the arc-shaped filter tank exceeds a set threshold value, a floating ball of the liquid level relay is lifted; and the normally open contact of the liquid level relay is closed, so that the speed reducing motor is started to wind the waste non-woven fabric on the output rotating shaft of the speed reducing motor.
CN202110795422.2A 2021-07-14 2021-07-14 Stone carving, cutting, grinding and polishing system with mechanical arm Pending CN113400485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110795422.2A CN113400485A (en) 2021-07-14 2021-07-14 Stone carving, cutting, grinding and polishing system with mechanical arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110795422.2A CN113400485A (en) 2021-07-14 2021-07-14 Stone carving, cutting, grinding and polishing system with mechanical arm

Publications (1)

Publication Number Publication Date
CN113400485A true CN113400485A (en) 2021-09-17

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Application Number Title Priority Date Filing Date
CN202110795422.2A Pending CN113400485A (en) 2021-07-14 2021-07-14 Stone carving, cutting, grinding and polishing system with mechanical arm

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113894951A (en) * 2021-10-27 2022-01-07 深圳琦石汇科技工程有限公司 Cutting equipment and method for marble processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113894951A (en) * 2021-10-27 2022-01-07 深圳琦石汇科技工程有限公司 Cutting equipment and method for marble processing

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