Stone carving machine and working method thereof

Abstract

The invention belongs to the technical field of engraving machines, and particularly relates to a stone engraving machine and a working method thereof. Comprising a workbench, and stone is placed on the workbench; baffles are installed on the two sides of the workbench, the tops of the two baffles are jointly connected with a movement actuator, and an engraving head is installed on the movement actuator. A fitting energy consumption device is arranged on the workbench; the attaching energy consumption device comprises two symmetrical displacement transverse blocks, and the displacement transverse blocks are located at the bottom of the workbench and arranged on the same side as the baffle. Two guide square columns are symmetrically mounted on the opposite surfaces of the two displacement transverse blocks; two guide square cylinders are symmetrically mounted at the bottom of the workbench; according to the stone engraving machine, the impact force caused by the machine to stone engraving is counteracted through the buffering force in the stone clamping and fixing process, the situation that the clamped stone generates tiny displacement or vibration due to the impact force is avoided, the engraving precision of the machine is improved, and therefore the limitation of the machine in the using process is reduced, and the engraving effect of the machine is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engraving machines, and in particular relates to a stone engraving machine and a working method thereof. Background Art

[0002] From the processing principle, engraving is a combination of drilling and milling processing, which has a wide range of applications, including woodworking engraving machines, laser engraving machines, advertising engraving machines, jade engraving machines, stone engraving machines, cylindrical engraving machines, etc. The application range of engraving machines is very wide, and they have even replaced manual engraving technology, laying the foundation for large-scale and rapid production of products; among them, stone engraving machines are high-tech fully automatic computer-controlled engraving equipment that can perform calligraphy and painting engraving on natural stone, glass, and ceramics.

[0003] However, during the carving process, the existing stone carving machines need to fix the stone to be carved on the workbench surface for carving operations. However, when carving the stone, the machine will cause impact force on the clamped stone. The impact force will cause the clamped stone to cause slight displacement or vibration, which will easily affect the carving accuracy of the machine, resulting in the carving tool being unable to accurately carve according to the preset path, and ultimately affecting the accuracy of the carved pattern or shape; at the same time, the above-mentioned impact force not only easily damages the stone, but the force is mutual, resulting in the vibration generated by the impact force on the stone, which will cause the carving tool to bear uneven force, thereby aggravating the wear of the tool, making the machine more limited when used, and thus reducing the carving effect of the machine. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a stone engraving machine and a working method thereof, which effectively solve the problems in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a stone engraving machine, comprising a workbench, on which a stone is placed; baffles are installed on both sides of the workbench, the tops of the two baffles are commonly connected to a motion actuator, and a carving head is installed on the motion actuator; a fitting energy-absorbing device is provided on the workbench, and the fitting energy-absorbing device is used to reduce the impact force during engraving; the fitting energy-absorbing device comprises two symmetrical displacement cross blocks, which are located at the bottom of the workbench and arranged on the same side as the baffle; two guide square columns are symmetrically installed on the opposite surfaces of the two displacement cross blocks; two guide square cylinders are symmetrically installed on the bottom of the workbench, and the two ends of the guide square cylinder are slidably connected to the guide square columns and the two fit together; the opposite back surfaces of the two guide square cylinders are provided with a U-shaped square cylinder, and a positioning anti-deflection unit is provided on the U-shaped square cylinder, and the positioning anti-deflection unit is used to position the engraved stone at the center of the workbench; the positioning anti-deflection unit comprises a fixing base arranged at the output end of the U-shaped square cylinder, and the fixing base is fixedly installed on the workbench; The fitting energy-absorbing device includes a displacement screw arranged at the bottom of the workbench, with the end point of the displacement screw facing the baffle; the displacement screw is provided with two symmetrical threaded areas, and the threads of the two threaded areas are arranged oppositely; the two displacement cross blocks are respectively threadedly connected to the two threaded areas; auxiliary bases are installed at both ends of the displacement screw, and the auxiliary bases are fixedly installed at the bottom of the workbench; a driving motor is installed on one of the auxiliary bases, and the output end of the driving motor is connected to the displacement screw.

[0006] Preferably, a guide slider is installed on the side of the displacement cross block close to the workbench; a guide slide is provided at the bottom of the workbench, and the guide slide is slidably matched with the guide slider; a bending square rod is installed at each of the two displacement cross blocks; two symmetrical fitting long plates are installed on the top of the workbench, and the fitting long plates and the baffle are arranged on the same side; one end of the bending square rod is fixedly connected to the displacement cross block, and the other end passes through the baffle and is fixedly connected to the fitting long plate; the bending square rod is slidably matched with the baffle; a number of penetrating fitting square columns are equidistantly provided on the opposite surfaces of the two fitting long plates, and the fitting square columns and the fitting long plates are slidably matched.

[0007] Preferably, a positioning square column is slidably connected to the output end of the U-shaped square tube, one end of the positioning square column is located in the U-shaped square tube, and the other end is connected to a positioning horizontal plate; a positioning spring is sleeved on the positioning square column, one end of the positioning spring is fixedly connected to the retaining base, and the other end is fixedly connected to the positioning horizontal plate, and two penetrating positioning cylinders are symmetrically installed on the side of the positioning horizontal plate, and the positioning cylinders are slidably matched with the positioning horizontal plate; a positioning limit plate is installed at the end of the positioning cylinder away from the stone, and a U-shaped square seat is installed at the other end.

[0008] Preferably, an extrusion spring is sleeved on the positioning cylinder, one end of the extrusion spring is fixedly connected to the positioning limit plate, and the other end is fixedly connected to the positioning horizontal plate; a limited motion cylinder is installed in the U-shaped square seat, and a limited motion block is slidably connected to the limit cylinder, and the two limit blocks are commonly connected to a blocking square plate, and a rubber buffer pad is provided on the side of the blocking square plate close to the stone, and the side of the stone is located in the moving path of the rubber buffer pad; gaskets are provided on the opposite surfaces of the U-shaped square seat and the positioning horizontal plate.

[0009] Preferably, one end of the fitting square column is connected to a fitting limit plate, and the other end is connected to an energy-absorbing square plate, and two penetrating limit columns are symmetrically installed on the energy-absorbing square plate, and the limit columns slide in cooperation with the energy-absorbing square plate; the two limit columns are installed with a T-shaped base plate at one end close to the stone, and the two T-shaped base plates are commonly connected to a driving circular wheel, and the side of the stone is located at the moving path of the driving circular wheel; a driving spring is sleeved on the limit column, and one end of the driving spring is fixedly connected to the T-shaped base plate, and the other end is fixedly connected to the energy-absorbing square plate; a limit spring is sleeved on the fitting square column, and one end of the limit spring is fixedly connected to the fitting long plate, and the other end is fixedly connected to the energy-absorbing square plate.

[0010] Preferably, an auxiliary spring is sleeved on the limiting cylinder, one end of the auxiliary spring is fixedly connected to the U-shaped square seat, and the other end is fixedly connected to the limiting block; a blocking pulley is installed at the bottom of the blocking square plate; a blocking bevel is also installed on the side of the U-shaped square cylinder, and the top of the blocking bevel is in contact with the blocking pulley; the blocking bevel is a right-angled trapezoidal setting, and the top of the blocking bevel is an inclined surface setting and the inclined surface is away from the workbench; an inclined long rod is installed on the U-shaped square cylinder, and a number of equally spaced guide circular wheels are installed on the inclined long rod.

[0011] Preferably, the workbench is also provided with a support distance adjustment component; the support distance adjustment component includes several groups of support U-seats arranged on the top of the workbench, the openings of the support U-seats are arranged away from the workbench and are also installed with several resistance wheels; two symmetrical adjustment cylinders are installed at the bottom of each group of the support U-seats; an adjustment cylinder is installed at the bottom of the workbench; one end of the adjustment cylinder away from the support U-seats passes through the top of the workbench and is located in the adjustment cylinder, and the adjustment cylinder and the adjustment cylinder are slidably fitted; an adjustment spring is provided in the adjustment cylinder, one end of the adjustment spring is fixedly connected to the inner bottom surface of the adjustment cylinder, and the other end is fixedly connected to the adjustment cylinder; a number of penetrating adjustment slots are provided on the side wall of the adjustment cylinder.

[0012] Preferably, an adjusting rod is provided through the outer wall of the adjusting cylinder, and the adjusting rod and the adjusting cylinder are slidably matched; an adjusting limit plate is installed at one end of the adjusting rod, and the other end passes through the adjusting cylinder and is connected to one of the adjusting slots; a brake spring is sleeved on the adjusting rod, and one end of the brake spring is fixedly connected to the adjusting limit plate, and the other end is fixedly connected to the outer wall of the adjusting cylinder.

[0013] The present invention also provides a working method of a stone engraving machine, comprising the following steps: S1. Place the stone on the top of the workbench and clamp and fix it by fitting the energy-consuming device; S2. The engraving head is operated to engrave the stone, and the engraving head is moved in multiple directions by the motion actuator to engrave the stone at different positions; S3. Fix the stone at the center of the top of the workbench by operating the positioning anti-deviation unit.

[0014] From the above, it can be seen that the stone engraving machine provided by the present invention can also bring a part of the buffering force in the process of clamping and fixing the stone to offset the impact force caused by the machine when engraving the stone, so as to avoid the impact force causing the clamped stone to cause slight displacement or vibration. If this phenomenon occurs, the driving spring and the limit spring will be in a buffering state, and the stone will be reset by the reset of the two springs. Multiple degrees of buffering can improve the stability during stone engraving, avoid affecting the engraving effect and accuracy of the machine on the stone, so that the engraving tool can be accurately engraved according to the preset path, and will not affect the accuracy of the engraved pattern or shape. At the same time, it also avoids the above-mentioned impact force causing easy damage to the stone. Since the force is mutual, the above-mentioned buffering force can avoid the vibration of the stone when it is subjected to the impact force, causing the engraving tool to bear uneven force and cause increased wear of the tool, thereby reducing the limitations of the machine during use and improving the engraving effect of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached figure: Figure 1 This is one of the overall structural diagrams of the present invention; Figure 2 This is a schematic diagram of the driving wheel structure of the present invention; Figure 3 This is a schematic diagram of the positioning square column structure of the present invention; Figure 4 This is a cross-sectional view of the guide square tube of the present invention; Figure 5 This is a schematic diagram of the T-shaped substrate structure of the present invention; Figure 6 This is the second schematic diagram of the overall structure of the present invention; Figure 7 It is a cross-sectional view of the adjustment cylinder of the present invention; Figure 8 This is a schematic diagram of the structure of the oblique blocking block of the present invention; Figure 9 This is a schematic diagram of the bottom structure of the workbench of the present invention; In the figure: 1. Workbench; 2. Baffle; 3. Motion actuator; 4. Displacement cross block; 5. Guide square column; 6. Guide square tube; 7. U-shaped square tube; 8. Retention base; 9. Displacement screw; 10. Auxiliary base; 11. Driving motor; 12. Guide slider; 13. Guide chute; 14. Bending square rod; 15. Fitting long plate; 16. Fitting square column; 17. Positioning square column; 18. Positioning cross plate; 19. Positioning spring; 20. Positioning cylinder; 21. Positioning limit plate; 22. U-shaped square seat; 23. Extrusion spring; 24. Limit cylinder; 25. Limit block; 26. Blocking square plate; 27. Rubber buffer pad; 28. Gasket; 29. ​​Energy dissipation square plate; 30. Limiting cylinder; 31. T-type base plate; 32. Driving round wheel; 33. Driving spring; 34. Limiting spring; 35. Auxiliary spring; 36. Blocking pulley; 37. Blocking inclined block; 38. Oblique long rod; 39. Guide round wheel; 40. Support U seat; 41. Resistance round wheel; 42. Adjusting cylinder; 43. Adjusting cylinder; 44. Adjusting spring; 45. Adjusting slot; 46. Adjusting rod; 47. Adjusting limiting plate; 48. Braking spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Example, by Figures 1 to 9The present invention includes a workbench 1, on which a stone is placed; baffles 2 are installed on both sides of the workbench 1, and the tops of the two baffles 2 are commonly connected to a motion actuator 3, on which a carving head is installed; a fitting energy-absorbing device is provided on the workbench 1, and the fitting energy-absorbing device is used to reduce the impact force during carving; the fitting energy-absorbing device includes two symmetrical displacement cross blocks 4, which are located at the bottom of the workbench 1 and are arranged on the same side as the baffle 2; two guide square columns 5 are symmetrically installed on the opposite surfaces of the two displacement cross blocks 4; two guide square cylinders 6 are symmetrically installed at the bottom of the workbench 1, and the two ends of the guide square cylinder 6 are slidably connected to the guide square column 5 and the two fit together; the relative positions of the two guide square cylinders 6 are symmetrical. A U-shaped square tube 7 is provided on the back side, and a positioning anti-bias unit is provided on the U-shaped square tube 7, which is used to position the carved stone at the center of the workbench 1; the fitting energy-consuming device includes a displacement screw 9 arranged at the bottom of the workbench 1, and the end point of the displacement screw 9 faces the baffle 2; the displacement screw 9 is provided with two symmetrical threaded areas, and the threads of the two threaded areas are arranged oppositely; the two displacement cross blocks 4 are respectively threadedly connected to the two threaded areas; auxiliary bases 10 are installed at both ends of the displacement screw 9, and the auxiliary base 10 is fixedly installed at the bottom of the workbench 1; a driving motor 11 is installed on one of the auxiliary bases 10, and the output end of the driving motor 11 is connected to the displacement screw 9; the displacement cross block 4 is close to the workbench A guide slider 12 is installed on one side of the table 1; a guide slot 13 is provided at the bottom of the workbench 1, and the guide slot 13 slides with the guide slider 12; a bending square rod 14 is installed at each of the two displacement cross blocks 4; two symmetrical fitting long plates 15 are installed on the top of the workbench 1, and the fitting long plates 15 and the baffle 2 are arranged on the same side; one end of the bending square rod 14 is fixedly connected to the displacement cross block 4, and the other end passes through the baffle 2 and is fixedly connected to the fitting long plate 15; the bending square rod 14 slides with the baffle 2; a number of penetrating fitting square columns 16 are equidistantly provided on the opposite surfaces of the two fitting long plates 15, and the fitting square columns 16 slide with the fitting long plates 15; one end of the fitting square column 16 is connected to a fitting limit The plate, the other end of which is connected to an energy-absorbing square plate 29, on which two limiting columns 30 are symmetrically installed, and the limiting columns 30 slide in cooperation with the energy-absorbing square plate 29; the two limiting columns 30 are installed with a T-shaped base plate 31 at one end close to the stone, and the two T-shaped base plates 31 are commonly connected to a driving circular wheel 32, and the side of the stone is located at the moving path of the driving circular wheel 32; a driving spring 33 is sleeved on the limiting column 30, one end of the driving spring 33 is fixedly connected to the T-shaped base plate 31, and the other end is fixedly connected to the energy-absorbing square plate 29; a limiting spring 34 is sleeved on the fitting square column 16, one end of the limiting spring 34 is fixedly connected to the fitting long plate 15, and the other end is fixedly connected to the energy-absorbing square plate 29; After the stone is placed on the workbench 1, the driving motor 11 is started, so that its output end can drive the displacement screw 9 to rotate. Since the threads of the two symmetrical threaded areas are opposite, the two displacement cross blocks 4 connected by the thread are limited and moved relative to each other. Under the action of the bent square rod 14, the two fitting long plates 15 are synchronously moved relative to each other on the top of the workbench 1. Under the action of the fitting square column 16, the energy-absorbing square plate 29 and the limiting column 30, the fitting long plates 15 are able to contact both sides of the stone, so that the two sides of the stone are clamped and fixed at the center position of the top of the workbench 1, avoiding deviation in the clamping position of the stone and affecting the carving effect of the machine; at the same time, under the action of the several driving wheels 32, it is convenient for the machine to adjust the position of the stone before carving, and when the stone is loaded and unloaded, the resistance of the stone during movement is reduced under the action of the several driving wheels 32, thereby improving the use effect of the machine; It is worth mentioning that after the two sides of the stone are limited by the driving round wheel 32, if the stone vibrates or shakes due to the impact force caused by carving during the carving process, the impact force on the stone will be absorbed by the buffering force brought by the driving spring 33 and the limiting spring 34, so that the driving round wheel 32 can be limited and moved at the energy-absorbing square plate 29 by the limiting column 30 on the T-shaped base plate 31. The displacement of the driving round wheel 32 can avoid the stone from moving due to the impact force and causing damage to the stone. In the process of clamping and fixing the stone, a part of the buffering force can also be brought to offset the impact force caused by the machine when carving the stone, so as to avoid the impact force causing the clamped stone to cause slight displacement or vibration. If this phenomenon occurs, the driving spring 33 and the limit spring 34 will be in a buffer state, and the stone will be reset through the reset of the two springs. Multiple degrees of buffering can improve the stability of stone carving, avoid affecting the carving effect and accuracy of the machine on the stone, and enable the carving tool to accurately carve according to the preset path without affecting the accuracy of the carved pattern or shape. At the same time, it also avoids the above-mentioned impact force that causes easy damage to the stone. Since the force is mutual, the above-mentioned buffering force can avoid the vibration of the stone when it is subjected to the impact force, causing the carving tool to bear uneven force and cause increased wear of the tool, thereby reducing the limitations of the machine during use and improving the carving effect of the machine.

[0019] The positioning anti-bias unit of this embodiment includes a fixing base 8 arranged at the output end of the U-shaped square tube 7, and the fixing base 8 is fixedly installed on the workbench 1; the output end of the U-shaped square tube 7 is slidably connected to a positioning square column 17, one end of the positioning square column 17 is located in the U-shaped square tube 7, and the other end is connected to a positioning cross plate 18; a positioning spring 19 is sleeved on the positioning square column 17, one end of the positioning spring 19 is fixedly connected to the fixing base 8, and the other end is fixedly connected to the positioning cross plate 18, and two penetrating positioning cylinders 20 are symmetrically installed on the side of the positioning cross plate 18, and the positioning cylinder 20 slides with the positioning cross plate 18; the end of the positioning cylinder 20 away from the stone is equipped with a positioning limit plate 21, and the other end is equipped with a U-shaped square seat 22; the positioning cylinder 20 is sleeved with an extrusion spring 23, one end of the extrusion spring 23 is fixedly connected to the positioning limit plate 21, and the other end is fixedly connected to the positioning cross plate 18; a limited movement cylinder 2 is installed in the U-shaped square seat 22 4. A limited block 25 is slidably connected to the limit cylinder 24. The two limit blocks 25 are connected to a blocking square plate 26. A rubber buffer pad 27 is provided on the side of the blocking square plate 26 close to the stone. The side of the stone is located in the moving path of the rubber buffer pad 27. The opposite surfaces of the U-shaped square seat 22 and the positioning horizontal plate 18 are provided with gaskets 28. An auxiliary spring 35 is sleeved on the limit cylinder 24. One end of the auxiliary spring 35 is fixedly connected to the U-shaped square seat 22, and the other end is fixedly connected to the U-shaped square seat 22. It is fixedly connected to the limit block 25; a blocking pulley 36 is installed at the bottom of the blocking square plate 26; a blocking bevel 37 is also installed on the side of the U-shaped square tube 7, and the top of the blocking bevel 37 is in contact with the blocking pulley 36; the blocking bevel 37 is a right-angled trapezoidal setting, and the top of the blocking bevel 37 is an inclined surface setting and the inclined surface is away from the workbench 1; an inclined long rod 38 is installed on the U-shaped square tube 7, and a number of equally spaced guide round wheels 39 are installed on the inclined long rod 38; When the stone is placed on the workbench 1 and fixed by the energy-consuming device, it means that both sides of the stone have been fixed. However, in the process of clamping and fixing the two sides of the stone, the two displacement cross blocks 4 move relative to each other, so that the guide square columns 5 on the two displacement cross blocks 4 move within the two ends of the guide square tube 6, so that the gas in the guide square tube 6 is squeezed into the U-shaped square tube 7 and acts on the positioning square column 17 at its output end, so that the positioning square column 17 moves away from the output end of the U-shaped square tube 7, and then the positioning spring 19 is in a buffering state. In this state, the positioning horizontal plate 18 drives the blocking square plate 26 to move toward the direction of the stone under the action of the positioning cylinder 20, the U-shaped square seat 22 and the limiting block 25, so that the two blocking square plates 26 move relative to each other, thereby setting the other two sides of the stone to be limited, so that the stone is limited all around, avoiding the stone from being dislocated or shaking due to the impact force generated by the machine during the stone carving process, thereby improving the stability of the machine during use and improving the carving accuracy of the machine; and making the rubber buffer pad 27 on the blocking square plate 26 The contact with the side of the stone can enhance the friction between the blocking square plate 26 and the stone. At the same time, the positioning cross plate 18 continues to move, and the two opposite blocking square plates 26 are in contact with both sides of the stone and cannot move, so that the positioning cross plate 18 is limited to move at the positioning cylinder 20, so that the extrusion spring 23 is in a buffering state, thereby enhancing the contact strength between the blocking square plate 26 and the stone, and further improving the clamping and fixing effect of the stone. At the same time, the rubber buffer pad 27 and the buffering force brought by the extrusion spring 23 can reduce the impact force caused by the machine on the stone during the carving process, thereby further improving the stability of the stone during carving, avoiding excessive impact on the stone and causing damage to the stone, thereby reducing the limitations of the machine during use and improving the carving effect of the machine on the stone. When the gasket 28 on the opposite side of the U-shaped square seat 22 and the positioning cross plate 18 contacts, it means that the other two sides of the stone have been limited and fixed, so that the fixing state of the stone can be monitored so that timely intervention can be made when the stone is dislocated, reducing the limitations of the machine during use. At the same time, if two sides of the stone are limited, during the process of limiting the other two sides of the stone, since the stone may not be centered in the center of the top of the workbench 1 at this time, it means that the position of the stone will be different. However, it is worth mentioning that the relative movement of the two blocking square plates 26 is carried out synchronously. If the stone deviates to one side, it will contact one of the blocking square plates 26. The movement of the blocking square plate 26 can push the stone toward the other blocking square plate 26 during the movement until it contacts the other blocking square plate 26, so that both blocking square plates 26 are in contact with both sides of the stone, and the two blocking square plates 26 are moved to the same final position, thereby fixing the stone in the middle position on the top of the workbench 1. , which avoids the stone being not located in the center position of the top of the workbench 1, resulting in the need for the machine to frequently adjust the position of the engraving head, reduces the operator's workload, and allows the centrally fixed stone to be engraved in a better position and state, thereby improving the engraving effect of the machine; at the same time, when the machine has completed engraving the stone, the gas in the U-shaped square cylinder 7 can be released, so that the gas inside no longer acts on the positioning square column 17, and the positioning spring 19 is reset to drive the blocking square plate 26 on the positioning horizontal plate 18 to reset and move, thereby releasing the limit on one side of the stone, that is, the direction of the loading and unloading port is released, so that the stone can be loaded and unloaded normally through the circular wheels with different functions, thereby improving the use effect of the machine; It is worth mentioning that the initial position of the blocking square plate 26 will not affect the normal loading and unloading of the stone. When the other two sides of the stone are limited, the moving blocking square plate 26 will contact the inclined surface of the blocking inclined block 37 through the blocking pulley 36, thereby exerting pressure on the blocking square plate 26, so that the blocking square plate 26 is limited to move at the limiting cylinder 24 through the limiting block 25, so that the auxiliary spring 35 is in a buffering state, which can drive the blocking square plate 26 to move upward, so that the blocking square plate 26 will gradually move upward when moving toward the stone. The block 37 is a right-angled trapezoid, so that the blocking pulley 36 contacts the parallel surface of the blocking oblique block 37 after moving a distance on the oblique surface of the blocking oblique block 37, which makes the blocking square plate 26 move close to the stone at the current height and fix it. According to the different oblique angles of the blocking oblique block 37, the blocking square plate 26 can be controlled to clamp the stone at different heights, and the loading and unloading of the material can be avoided due to the blocking square plate 26 being in the moving path of the stone, thereby reducing the stability of the machine during use and improving the engraving effect of the machine.

[0020] The workbench 1 of this embodiment is also provided with a support distance adjustment component; the support distance adjustment component includes several groups of support U-seats 40 arranged on the top of the workbench 1, the openings of the support U-seats 40 are arranged away from the workbench 1 and are also installed with several resistance wheels 41; two symmetrical adjustment cylinders 42 are installed at the bottom of each group of the support U-seats 40; an adjustment cylinder 43 is installed at the bottom of the workbench 1; one end of the adjustment cylinder 42 away from the support U-seats 40 passes through the top of the workbench 1 and is located in the adjustment cylinder 43, and the adjustment cylinder 43 and the adjustment cylinder 42 are slidably matched; an adjustment spring 44 is provided in the adjustment cylinder 43, and one end of the adjustment spring 44 One end is fixedly connected to the inner bottom surface of the adjusting cylinder 43, and the other end is fixedly connected to the adjusting cylinder 42; a plurality of penetrating adjustment slots 45 are provided on the side wall of the adjusting cylinder 42; an adjusting rod 46 is provided through the outer wall of the adjusting cylinder 43, and the adjusting rod 46 and the adjusting cylinder 43 are slidably fitted; an adjustment limit plate 47 is installed on one end of the adjusting rod 46, and the other end passes through the adjusting cylinder 43 and is connected to one of the adjustment slots 45; a brake spring 48 is sleeved on the adjusting rod 46, and one end of the brake spring 48 is fixedly connected to the adjustment limit plate 47, and the other end is fixedly connected to the outer wall of the adjusting cylinder 43; When the stone is transported to the top of the workbench 1, it is placed on several resistance wheels 41 at several support U seats 40 to support the stone. The resistance wheels 41 themselves have resistance to prevent the stone from changing its position due to the rotation of the resistance wheels 41 during carving, which may affect the carving effect and accuracy of the machine. At the same time, after the stone carving is completed, the resistance wheels 41 can be actively rotated to facilitate the movement of the stone, thereby avoiding the phenomenon that the stone is difficult to move and damaged due to excessive friction with the surface of the workbench 1. This improves the carving efficiency of the machine and increases the speed of loading and unloading the stone on the workbench 1. , while reducing the limitations of the machine during use; and when the stone is transported from the bottom to the workbench 1, the stone can be placed on the several guide round wheels 39 on the inclined long rod 38, so as to reduce the time and work intensity required for the operator to transport the stone, thereby improving the use effect of the machine. The same is true for unloading, so that the stone is equivalent to being transported to the workbench 1 for carving operation, further shortening the overall carving time, and the contact surface between the side wall of the resistance round wheel 41 and the stone has a buffering effect. The contact between the two is not a rigid connection, which can offset the impact force on the stone during carving, thereby improving the carving effect and accuracy of the machine on the stone; At the same time, when the resistance wheels 41 have supported the stone, the adjustment limit plate 47 is pulled outward, so that the adjustment rod 46 on it can be limited and moved at the adjustment cylinder 43, so that the brake spring 48 is in a buffering state, and then the adjustment rod 46 is separated from the adjustment cylinder 43 and is no longer connected to one of the adjustment slots 45, thereby releasing the limit setting of the adjustment cylinder 42, so that the support U seat 40 can be limited and moved on the workbench 1 and the adjustment cylinder 43 by the adjustment cylinder 42, so that the adjustment spring 44 is in a buffering state, so as to control the support U seat 40 to move up and down, so that the stone placed on it can move together with the support U seat 40, so as to control the distance adjustment between the stone and the carving head, which can adapt to stones of different thicknesses and shapes, as well as various carving process requirements. For example, when processing thinner stones, the distance can be appropriately increased to prevent the stone from being damaged by excessive cutting; for three-dimensional carvings such as reliefs, the distance can be flexibly adjusted to achieve carving effects of different depths; and a reasonable distance can allow The engraving head is evenly stressed, which reduces excessive friction and collision with the stone, avoids excessive load and increased wear of the engraving head due to too small a spacing, reduces the frequency of replacement, saves costs, and further improves the use effect of the machine. In addition, reducing the spacing between the engraving head and the stone can make the engraving head move more accurately, avoid over-engraving and missing engraving, make the pattern outline clearer, the lines smoother, and make the engraved patterns, texts and other details more refined, the edges smoother, the defects and burrs reduced, the scrap rate reduced, the qualified rate of finished products increased, and it is easier to meet high-quality processing requirements, reduce the limitations of the machine during engraving, and thus improve the engraving effect of the machine; it is worth mentioning that although the engraving head can be moved in multiple directions by the motion actuator 3, the adjustment of the spacing between the engraving head and the stone is subjective, which can shorten the movement process of the engraving head and avoid the motion actuator 3 driving the engraving head to move frequently over long distances, resulting in excessive wear and affecting the service life of the machine, thereby improving the engraving effect and efficiency of the machine; When the distance between the stone and the engraving head is adjusted, the adjusting limit plate 47 is loosened, and the reset of the brake spring 48 drives the adjusting rod 46 on the adjusting limit plate 47 to reset and move, so that it can pass through the adjusting cylinder 43 and connect with one of the adjusting slots 45, so that the adjusting cylinder 42 on the adjusting slot 45 can be fixed at the current position, thereby fixing the height of the stone here, preventing the height of the stone from being affected by non-human factors during engraving, and improving the engraving effect and accuracy of the machine. At the same time, when the adjusting cylinder 42 is limited, the adjusting spring 44 in the buffer state cannot be reset and moved, so that the elastic force brought about acts on the adjusting cylinder 42, thereby strengthening the contact strength and friction between the adjusting rod 46 and the adjusting slot 45, improving the fixing effect of the adjusting cylinder 42, and preventing the dislocation of the adjusting rod 46 due to non-human factors, which causes the position of the adjusting cylinder 42 to change, improving the use effect of the machine, and further reducing the limitations of the machine during use.

[0021] The present invention also provides a working method of a stone engraving machine, comprising the following steps: S1, placing the stone on the top of the workbench 1 and clamping and fixing it by fitting the energy dissipation device; S2. The engraving head is operated to engrave the stone, and the engraving head is moved in multiple directions by the motion actuator 3 to engrave the stone at different positions; S3. Fix the stone at the center of the top of the workbench 1 by operating the positioning anti-deviation unit.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stone engraving machine, comprising a workbench (1), on which stone is placed; characterized in that: Baffles (2) are installed on both sides of the workbench (1), and the tops of the two baffles (2) are connected to a motion actuator (3), and an engraving head is installed on the motion actuator (3); a fitting energy-absorbing device is provided on the workbench (1), and the fitting energy-absorbing device is used to reduce the impact force during engraving; the fitting energy-absorbing device includes two symmetrical displacement cross blocks (4), and the displacement cross blocks (4) are located at the bottom of the workbench (1) and are arranged on the same side as the baffles (2); two guide square columns (5) are symmetrically installed on the opposite surfaces of the two displacement cross blocks (4) Two guide square cylinders (6) are symmetrically installed at the bottom of the workbench (1), and the two ends of the guide square cylinder (6) are slidably connected to the guide square column (5) and the two are in harmony with each other; the opposite sides of the two guide square cylinders (6) are each provided with a U-shaped square cylinder (7), and a positioning anti-bias unit is provided on the U-shaped square cylinder (7), and the positioning anti-bias unit is used to position the carved stone at the center of the workbench (1); the positioning anti-bias unit includes a fixing base (8) provided at the output end of the U-shaped square cylinder (7), and the fixing base (8) is fixedly installed on the workbench (1); The fitting energy-dissipating device comprises a displacement screw (9) arranged at the bottom of the workbench (1), with the end point of the displacement screw (9) facing the baffle (2); the displacement screw (9) is provided with two symmetrical threaded areas, and the threads of the two threaded areas are arranged oppositely; the two displacement cross blocks (4) are respectively threadedly connected to the two threaded areas; auxiliary bases (10) are installed at both ends of the displacement screw (9), and the auxiliary base (10) is fixedly installed at the bottom of the workbench (1); a driving motor (11) is installed on one of the auxiliary bases (10), and the output end of the driving motor (11) is connected to the displacement screw (9).

2. A stone engraving machine according to claim 1, characterized in that: A guide slide (12) is installed on the side of the displacement cross block (4) close to the workbench (1); a guide slot (13) is provided at the bottom of the workbench (1), and the guide slot (13) and the guide slide (12) are slidably matched; a bending square rod (14) is installed at each of the two displacement cross blocks (4); two symmetrical fitting long plates (15) are installed on the top of the workbench (1), and the fitting long plates (15) and the baffle (2) are arranged on the same side; one end of the bending square rod (14) is fixedly connected to the displacement cross block (4), and the other end passes through the baffle (2) and is fixedly connected to the fitting long plate (15); the bending square rod (14) and the baffle (2) are slidably matched; the opposite surfaces of the two fitting long plates (15) are equidistantly provided with a plurality of penetrating fitting square columns (16), and the fitting square columns (16) and the fitting long plates (15) are slidably matched.

3. The stone engraving machine according to claim 1, characterized in that: A positioning square column (17) is slidably connected to the output end of the U-shaped square tube (7), one end of the positioning square column (17) is located in the U-shaped square tube (7), and the other end is connected to the positioning horizontal plate (18); a positioning spring (19) is sleeved on the positioning square column (17), one end of the positioning spring (19) is fixedly connected to the retaining base (8), and the other end is fixedly connected to the positioning horizontal plate (18), and two penetrating positioning cylinders (20) are symmetrically installed on the side of the positioning horizontal plate (18), and the positioning cylinders (20) are slidably matched with the positioning horizontal plate (18); a positioning limit plate (21) is installed at one end of the positioning cylinder (20) away from the stone, and a U-shaped square seat (22) is installed at the other end.

4. A stone engraving machine according to claim 3, characterized in that: The positioning cylinder (20) is sleeved with an extrusion spring (23), one end of the extrusion spring (23) is fixedly connected to the positioning limit plate (21), and the other end is fixedly connected to the positioning transverse plate (18); a limited motion cylinder (24) is installed in the U-shaped square seat (22), and a limited motion block (25) is slidably connected to the limit cylinder (24), and the two limit blocks (25) are commonly connected to a blocking square plate (26), and a rubber buffer pad (27) is provided on the side of the blocking square plate (26) close to the stone, and the side of the stone is located at the moving path of the rubber buffer pad (27); the opposite surfaces of the U-shaped square seat (22) and the positioning transverse plate (18) are provided with gaskets (28).

5. The stone engraving machine according to claim 2, characterized in that: One end of the fitting square column (16) is connected to a fitting limit plate, and the other end is connected to an energy-consuming square plate (29). Two limiting columns (30) are symmetrically installed on the energy-consuming square plate (29), and the limiting columns (30) and the energy-consuming square plate (29) are slidably matched; the ends of the two limiting columns (30) close to the stone are both installed with T-shaped base plates (31), and the two T-shaped base plates (31) are commonly connected to a driving round wheel (32), and the side of the stone is located at the moving path of the driving round wheel (32); a driving spring (33) is sleeved on the limiting column (30), one end of the driving spring (33) is fixedly connected to the T-shaped base plate (31), and the other end is fixedly connected to the energy-consuming square plate (29); a limiting spring (34) is sleeved on the fitting square column (16), one end of the limiting spring (34) is fixedly connected to the fitting long plate (15), and the other end is fixedly connected to the energy-consuming square plate (29).

6. The stone engraving machine according to claim 4, characterized in that: An auxiliary spring (35) is sleeved on the limit cylinder (24), one end of the auxiliary spring (35) is fixedly connected to the U-shaped square seat (22), and the other end is fixedly connected to the limit block (25); a blocking pulley (36) is installed at the bottom of the blocking square plate (26); a blocking oblique block (37) is also installed on the side of the U-shaped square cylinder (7), and the top of the blocking oblique block (37) is in contact with the blocking pulley (36); the blocking oblique block (37) is a right-angled trapezoidal setting, and the top of the blocking oblique block (37) is an inclined surface setting and the inclined surface is away from the workbench (1); an inclined long rod (38) is installed on the U-shaped square cylinder (7), and a plurality of equally spaced guide round wheels (39) are installed on the inclined long rod (38).

7. The stone engraving machine according to claim 1, characterized in that: The workbench (1) is also provided with a support distance adjustment component; the support distance adjustment component includes a plurality of groups of support U seats (40) arranged on the top of the workbench (1), the opening of the support U seats (40) is arranged away from the workbench (1) and is also installed with a plurality of resistance round wheels (41); two symmetrical adjustment cylinders (42) are installed at the bottom of each group of the support U seats (40); an adjustment cylinder (43) is installed at the bottom of the workbench (1); one end of the adjustment cylinder (42) away from the support U seat (40) passes through the top of the workbench (1) and is located in the adjustment cylinder (43), and the adjustment cylinder (43) and the adjustment cylinder (42) are slidably matched; an adjustment spring (44) is provided in the adjustment cylinder (43), one end of the adjustment spring (44) is fixedly connected to the inner bottom surface of the adjustment cylinder (43), and the other end is fixedly connected to the adjustment cylinder (42); a plurality of penetrating adjustment slots (45) are provided on the side wall of the adjustment cylinder (42).

8. The stone engraving machine according to claim 7, characterized in that: An adjusting rod (46) is provided on the outer side wall of the adjusting cylinder (43), and the adjusting rod (46) and the adjusting cylinder (43) are slidably matched; one end of the adjusting rod (46) is installed with an adjusting limit plate (47), and the other end passes through the adjusting cylinder (43) and is connected to one of the adjusting slots (45); a brake spring (48) is sleeved on the adjusting rod (46), and one end of the brake spring (48) is fixedly connected to the adjusting limit plate (47), and the other end is fixedly connected to the outer side wall of the adjusting cylinder (43).

9. A method for operating a stone engraving machine, using the stone engraving machine according to claim 1, characterized in that: Including steps: S1, placing the stone on the top of the workbench (1) and clamping and fixing it by fitting the energy-consuming device; S2, operating the engraving head to perform engraving operations on the stone, and the engraving head can be moved in multiple directions through the motion actuator (3) to engrave the stone at different positions; S3. The stone is fixed at the center position of the top of the workbench (1) by operating the positioning anti-deviation unit.

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