Stone carving machine and working method thereof

Abstract

This invention belongs to the field of engraving machine technology, specifically a stone engraving machine and its working method; it includes a worktable on which a stone is placed; baffles are installed on both sides of the worktable, and a motion actuator is connected to the top of the two baffles, with an engraving head mounted on the motion actuator; a contact energy-consuming device is provided on the worktable; the contact energy-consuming device includes two symmetrical displacement blocks, which are located at the bottom of the worktable and on the same side as the baffles; two guide square posts are symmetrically installed on the opposite surfaces of the two displacement blocks; two guide square tubes are symmetrically installed at the bottom of the worktable; during the process of clamping and fixing the stone, the buffering force generated by the machine offsets the impact force caused by the machine during stone engraving, avoiding the impact force from causing slight displacement or vibration of the clamped stone, improving the engraving accuracy of the machine, thereby reducing the limitations of the machine in use and improving the engraving effect of the machine.

Description

Technical Field

[0001] This invention belongs to the field of carving machine technology, specifically a stone carving machine and its working method. Background Technology

[0002] From a processing principle perspective, carving is a combination of drilling and milling. Its applications are wide-ranging, including wood carving machines, laser carving machines, advertising carving machines, jade carving machines, stone carving machines, and cylindrical carving machines. Carving machines have a very wide range of applications and have even replaced manual carving techniques, laying the foundation for the mass production of products. Among them, stone carving machines are high-tech, fully automatic, computer-controlled carving equipment that can carve calligraphy and paintings on natural stone, glass, and ceramics.

[0003] However, existing stone carving machines require the stone to be carved to be fixed on the worktable surface during the carving process. The machine exerts an impact force on the stone during carving, causing slight displacement or vibration, which can easily affect the carving accuracy. This prevents the carving tools from accurately following the preset path, ultimately affecting the accuracy of the carved pattern or shape. Furthermore, the impact force not only easily damages the stone, but the mutual action of forces means that the vibrations caused by the impact cause uneven force on the carving tools, accelerating tool wear. This limits the machine's usability and reduces its carving effect. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a stone carving machine and its working method, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stone carving machine, comprising a worktable on which a stone is placed; baffles are installed on both sides of the worktable, and a motion actuator is connected to the top of the two baffles, on which a carving head is mounted; an energy-consuming device is provided on the worktable to reduce the impact force during carving; the energy-consuming device includes two symmetrical displacement blocks, which are located at the bottom of the worktable and on the same side as the baffles; two guide columns are symmetrically installed on the opposite faces of the two displacement blocks; two guide tubes are symmetrically installed at the bottom of the worktable, with both ends of the guide tubes slidably connected to the guide columns and fitting together; a U-shaped tube is provided on the opposite sides of the two guide tubes, and a positioning and anti-deviation unit is provided on the U-shaped tube, which is used to position the stone to be carved at the center of the worktable; the positioning and anti-deviation unit includes a fixed base located at the output end of the U-shaped tube, which is fixedly installed on the worktable.

[0006] The energy-consuming device includes a displacement screw disposed at the bottom of the workbench, with the end point of the displacement screw facing the baffle; the displacement screw has two symmetrical threaded areas with opposite threads; two displacement blocks are respectively threaded 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 drive motor is installed on one of the auxiliary bases, and the output end of the drive motor is connected to the displacement screw.

[0007] Preferably, a guide slider is installed on the side of the displacement block closest to the worktable; a guide groove is provided at the bottom of the worktable, and the guide groove slides in cooperation with the guide slider; a bent square rod is installed at each of the two displacement blocks; two symmetrical fitting long plates are installed on the top of the worktable, and the fitting long plates and the baffle are arranged on the same side; one end of the bent square rod is fixedly connected to the displacement block, and the other end passes through the baffle and is fixedly connected to the fitting long plate; the bent square rod slides in cooperation with the baffle; several through fitting square posts are provided at equal intervals on the opposite surfaces of the two fitting long plates, and the fitting square posts slide in cooperation with the fitting long plates.

[0008] Preferably, a positioning column is slidably connected to the output end of the U-shaped square tube. One end of the positioning column is located inside the U-shaped square tube, and the other end is connected to a positioning horizontal plate. A positioning spring is sleeved on the positioning column. One end of the positioning spring is fixedly connected to the fixed base, and the other end is fixedly connected to the positioning horizontal plate. Two through positioning cylinders are symmetrically installed on the side of the positioning horizontal plate, and the positioning cylinders slide in cooperation with the positioning horizontal plate. A positioning limiting plate is installed at the end of the positioning cylinder away from the stone, and a U-shaped square base is installed at the other end.

[0009] Preferably, a compression spring is fitted on the positioning cylinder, one end of which is fixedly connected to the positioning limiting plate, and the other end is fixedly connected to the positioning horizontal plate; a limiting cylinder is installed inside the U-shaped square base, and a limiting block is slidably connected on the limiting cylinder; the two limiting blocks are connected to a blocking plate, and a rubber buffer pad is provided on the side of the blocking plate near the stone, with the side of the stone located at the movement path of the rubber buffer pad; gaskets are provided on the opposite surfaces of the U-shaped square base and the positioning horizontal plate.

[0010] Preferably, one end of the fitting square column is connected to a fitting limiting plate, and the other end is connected to an energy-consuming square plate. Two through-type limiting columns are symmetrically installed on the energy-consuming square plate, and the limiting columns slide in cooperation with the energy-consuming square plate. T-shaped base plates are installed on the ends of the two limiting columns near the stone, and the two T-shaped base plates are connected to a drive wheel. The side of the stone is located in the moving path of the drive wheel. A drive spring is sleeved on the limiting column, one end of the drive spring is fixedly connected to the T-shaped base plate, and the other end is fixedly connected to the energy-consuming square plate. A limiting spring is sleeved on the fitting square column, one end of the limiting spring is fixedly connected to the fitting long plate, and the other end is fixedly connected to the energy-consuming square plate.

[0011] Preferably, an auxiliary spring is fitted on the limiting cylinder, one end of which is fixedly connected to the U-shaped square base, 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 inclined block is also installed on the side of the U-shaped square tube, and the top of the blocking inclined block is in contact with the blocking pulley; the blocking inclined block is set in a right-angled trapezoid, and the top of the blocking inclined block is set as an inclined surface and the inclined surface is away from the worktable; a slanted long rod is installed on the U-shaped square tube, and several guide wheels arranged at equal intervals are installed on the slanted long rod.

[0012] Preferably, the workbench is further provided with a support adjustment assembly; the support adjustment assembly includes several sets of support U-shaped seats disposed on the top of the workbench, the openings of the support U-shaped seats being disposed away from the workbench and also equipped with several resistance wheels; two symmetrical adjustment cylinders are installed at the bottom of each set of support U-shaped seats; an adjustment cylinder is installed at the bottom of the workbench; one end of the adjustment cylinder away from the support U-shaped seat passes through the top of the workbench and is located inside the adjustment cylinder, and the adjustment cylinder and the adjustment cylinder are in sliding fit; an adjustment spring is provided inside 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; several through adjustment slots are provided on the side wall of the adjustment cylinder.

[0013] Preferably, an adjusting rod is provided through the outer wall of the adjusting cylinder, and the adjusting rod and the adjusting cylinder are slidably engaged; 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 braking spring is sleeved on the adjusting rod, one end of the braking spring is fixedly connected to the adjusting limit plate, and the other end is fixedly connected to the outer wall of the adjusting cylinder.

[0014] The present invention also provides a method for operating a stone carving machine, comprising the following steps:

[0015] S1. Place the stone on the top of the workbench and clamp it in place using the energy-consuming device.

[0016] S2. The carving head can be operated to carve the stone, and the carving head can be moved in multiple directions through the motion actuator to carve the stone in different positions.

[0017] S3. The positioning and anti-deviation unit is used to fix the stone at the center of the top of the workbench.

[0018] As can be seen from the above, the stone carving machine provided by this invention can provide a buffer force during the process of clamping and fixing the stone to offset the impact force caused by the machine during stone carving. This avoids the impact force causing slight displacement or vibration of the clamped stone. If such a phenomenon occurs, the drive spring and the limit spring will be in a buffer state, and the stone will be reset through the reset of the two springs. Multiple levels of buffering improve the stability of stone carving, avoid affecting the carving effect and accuracy of the machine, and allow the carving tool to carve accurately according to the preset path without affecting the accuracy of the carved pattern or shape. At the same time, it avoids the impact force from easily damaging the stone. Since the action of force is mutual, the above buffer force can prevent the vibration of the stone when subjected to impact force from causing uneven force on the carving tool and accelerated wear of the tool. This reduces the limitations of the machine in use and improves the carving effect of the machine. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is one of the schematic diagrams of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the drive wheel structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the positioning column structure of the present invention;

[0024] Figure 4 This is a cross-sectional view of the guide tube of the present invention;

[0025] Figure 5 This is a schematic diagram of the T-shaped substrate structure of the present invention;

[0026] Figure 6 This is the second schematic diagram of the overall structure of the present invention;

[0027] Figure 7 This is a cross-sectional view of the adjusting cylinder of the present invention;

[0028] Figure 8 This is a schematic diagram of the oblique block structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the bottom structure of the workbench of the present invention;

[0030] In the diagram: 1. Worktable; 2. Baffle; 3. Motion actuator; 4. Displacement block; 5. Guide column; 6. Guide tube; 7. U-shaped tube; 8. Fixing base; 9. Displacement screw; 10. Auxiliary base; 11. Drive motor; 12. Guide slider; 13. Guide groove; 14. Bending rod; 15. Fitting plate; 16. Fitting column; 17. Positioning column; 18. Positioning plate; 19. Positioning spring; 20. Positioning cylinder; 21. Positioning limit plate; 22. U-shaped seat; 23. Compression spring; 24. Limiting cylinder; 25. 26. Limiting block; 27. Stopping plate; 28. Rubber buffer pad; 29. ​​Gasket; 30. Energy dissipation plate; 31. Limiting column; 32. T-shaped base plate; 33. Drive wheel; 34. Drive spring; 35. Limiting spring; 36. Auxiliary spring; 37. Stopping pulley; 38. Stopping wedge; 39. Inclined long rod; 40. Guide wheel; 41. Support U-shaped seat; 42. Resistance wheel; 43. Adjusting cylinder; 44. Adjusting spring; 45. Adjusting slot; 46. Adjusting rod; 47. Adjusting limit plate; 48. Braking spring. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Implementation examples, by Figures 1 to 9The present invention includes a workbench 1 on which stone is placed; baffles 2 are installed on both sides of the workbench 1, and a motion actuator 3 is connected to the top of the two baffles 2, with a carving head installed on the motion actuator 3; a contact energy-dissipating device is provided on the workbench 1 to reduce the impact force during carving; the contact energy-dissipating device includes two symmetrical displacement blocks 4, which are located at the bottom of the workbench 1 and on the same side as the baffles 2; two guide columns 5 are symmetrically installed on the opposite sides of the two displacement blocks 4; two guide tubes 6 are symmetrically installed at the bottom of the workbench 1, and the two ends of the guide tubes 6 are slidably connected to the guide columns 5 and the two are engaged; the two guide tubes 6 are symmetrically connected to the bottom of the workbench 1. Each side has a U-shaped square tube 7, and a positioning and anti-deviation unit is set on the U-shaped square tube 7. The positioning and anti-deviation unit is used to position the carved stone at the center of the workbench 1. The contact energy-consuming device includes a displacement screw 9 set at the bottom of the workbench 1, with the end point of the displacement screw 9 facing the baffle 2. The displacement screw 9 has two symmetrical threaded areas with opposite threads. The two displacement horizontal blocks 4 are respectively threaded to the two threaded areas. Auxiliary bases 10 are installed at both ends of the displacement screw 9 and are fixedly installed at the bottom of the workbench 1. A drive motor 11 is installed on one of the auxiliary bases 10, and the output end of the drive motor 11 is connected to the displacement screw 9. The displacement horizontal blocks 4 are close to the workbench 1. A guide slider 12 is installed on one side of the workbench 1; a guide groove 13 is provided at the bottom of the workbench 1, and the guide groove 13 slides in cooperation with the guide slider 12; a bent square rod 14 is installed at each of the two displacement 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 bent square rod 14 is fixedly connected to the displacement block 4, and the other end passes through the baffle 2 and is fixedly connected to the fitting long plate 15; the bent square rod 14 slides in cooperation with the baffle 2; several through fitting square columns 16 are provided at equal intervals on the opposite surfaces of the two fitting long plates 15, and the fitting square columns 16 slide in cooperation with the fitting long plates 15; one end of the fitting square column 16 is connected to a fitting limiter. The first plate has an energy-consuming square plate 29 connected to its other end. Two through-type limiting columns 30 are symmetrically installed on the energy-consuming square plate 29, and the limiting columns 30 slide in cooperation with the energy-consuming square plate 29. T-shaped base plates 31 are installed on the ends of the two limiting columns 30 near the stone, and the two T-shaped base plates 31 are connected to a drive wheel 32. The side of the stone is located in the moving path of the drive wheel 32. A drive spring 33 is sleeved on the limiting column 30. One end of the drive 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.

[0033] After the stone is placed on the workbench 1, the drive motor 11 is started, which drives the displacement screw 9 to rotate. Since the threads of the two symmetrical threaded areas are opposite, the two displacement blocks 4 connected by the threads move relative to each other. Under the action of the bent square rod 14, the two bonding long plates 15 move synchronously relative to each other on the top of the workbench 1. Under the action of the bonding square column 16, the energy-consuming square plate 29 and the limiting column 30, the bonding long plates 15 allow several drive wheels 32 to contact both sides of the stone, so that both 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 that would affect the carving effect of the machine. At the same time, under the action of several drive wheels 32, it is easy for the machine to adjust the position of the stone before carving. When the stone is loaded and unloaded, the resistance of the stone during movement is reduced by several drive wheels 32, which improves the machine's performance.

[0034] It is worth mentioning that when the two sides of the stone are limited by the drive wheels 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 buffer force provided by the drive spring 33 and the limiting spring 34. This allows the drive wheels 32 to be limited in movement at the energy-consuming square plate 29 by the limiting post 30 on the T-shaped base plate 31. The displacement of the drive wheels 32 can prevent the stone from moving and being damaged due to the impact force. In addition, the above-mentioned process of clamping and fixing the stone can also provide some buffer force to offset the impact force caused by the machine carving the stone, thereby preventing the clamped stone from causing slight displacement or vibration. If this phenomenon occurs, the drive spring 33 and the limit spring 34 will be in a buffered state. The stone will also be reset through the reset of the two springs. Multiple levels of buffering improve the stability of stone carving, avoid affecting the carving effect and accuracy of the machine, and allow the carving tool to carve accurately according to the preset path without affecting the accuracy of the carved pattern or shape. At the same time, it avoids the impact force that may easily damage the stone. Since the action of force is mutual, the above buffering force can avoid the vibration of the stone when subjected to impact force, which will cause the carving tool to bear uneven force and cause accelerated wear of the tool. This reduces the limitations of the machine in use and improves the carving effect of the machine.

[0035] The positioning and anti-deviation unit of this embodiment includes a fixed base 8 disposed at the output end of the U-shaped square tube 7, which is fixedly installed on the workbench 1; a positioning column 17 is slidably connected to the output end of the U-shaped square tube 7, one end of the positioning column 17 is located inside the U-shaped square tube 7, and the other end is connected to a positioning horizontal plate 18; a positioning spring 19 is sleeved on the positioning column 17, one end of the positioning spring 19 is fixedly connected to the fixed base 8, and the other end is fixedly connected to the positioning horizontal plate 18; two through positioning cylinders 20 are symmetrically installed on the side of the positioning horizontal plate 18, and the positioning cylinders 20 slide in cooperation with the positioning horizontal plate 18; a positioning limiting plate 21 is installed at the end of the positioning cylinder 20 away from the stone, and a U-shaped square base 22 is installed at the other end; a compression spring 23 is sleeved on the positioning cylinder 20, one end of the compression spring 23 is fixedly connected to the positioning limiting plate 21, and the other end is fixedly connected to the positioning horizontal plate 18; a limiting cylinder 2 is installed inside the U-shaped square base 22. 4. A limiting block 25 is slidably connected to the limiting cylinder 24. Two limiting blocks 25 are connected to a blocking plate 26. A rubber buffer pad 27 is provided on the side of the blocking plate 26 near the stone, and the side of the stone is located in the moving path of the rubber buffer pad 27. Gaskets 28 are provided on the opposite surfaces of the U-shaped square base 22 and the positioning horizontal plate 18. An auxiliary spring 35 is sleeved on the limiting cylinder 24. One end of the auxiliary spring 35 is fixedly connected to the U-shaped square base 22, and the other end... The U-shaped square tube 7 is fixedly connected to the limiting block 25; the bottom of the blocking plate 26 is equipped with a blocking pulley 36; the side of the U-shaped square tube 7 is also equipped with a blocking inclined block 37, the top of the blocking inclined block 37 is in contact with the blocking pulley 36; the blocking inclined block 37 is set in a right-angled trapezoid, the top of the blocking inclined block 37 is set with an inclined surface and the inclined surface is away from the worktable 1; a slanted long rod 38 is installed on the U-shaped square tube 7, and a number of guide wheels 39 are installed on the slanted long rod 38 at equal intervals;

[0036] After the stone is placed on the workbench 1 and fixed by the energy-consuming device, it means that both sides of the stone are fixed. However, during the process of clamping and fixing the sides of the stone, the two displacement blocks 4 move relative to each other, causing the guide columns 5 on the two displacement blocks 4 to move within the guide tube 6 at both ends. This causes the gas in the guide tube 6 to be squeezed into the U-shaped tube 7 and act on the positioning column 17 at its output end, causing the positioning column 17 to move away from the output end of the U-shaped tube 7. Consequently, the positioning spring 19 is in a buffered state. The positioning horizontal plate 18, under the action of the positioning cylinder 20, U-shaped square base 22, and limiting block 25, drives the blocking square plate 26 towards the stone, causing the two blocking square plates 26 to move relative to each other. This limits the other two sides of the stone, ensuring that the stone is limited on all four sides, preventing the stone from dislodging or shaking due to the impact force generated during the stone carving process. This improves the stability of the machine during use and enhances the carving accuracy. Furthermore, the rubber buffer pads 27 on the blocking square plate 26... Contact with the side of the stone enhances the friction between the blocking square plate 26 and the stone. Simultaneously, the continued movement of the positioning horizontal plate 18, with both opposing blocking square plates 26 in contact with the sides of the stone and unable to move, limits the movement of the positioning horizontal plate 18 at the positioning cylinder 20. This puts the compression spring 23 in a buffered state, strengthening the contact strength between the blocking square plate 26 and the stone, further improving the clamping and fixing effect on the stone. Simultaneously, the buffering force provided by the rubber buffer pad 27 and the compression spring 23 reduces the impact force on the stone during carving, further improving the stability of the stone during carving and preventing damage due to excessive impact. This reduces the limitations of the machine's use and improves the carving effect. When the pads 28 on the opposite sides of the U-shaped square base 22 and the positioning horizontal plate 18 come into contact, it indicates that the other two sides of the stone have been limited and fixed, allowing monitoring of the stone's fixing status so that timely intervention can be made if the stone displaces, further reducing the limitations of the machine's use.

[0037] Simultaneously, if one side of the stone is restricted, during the restriction of the other side, the stone may not be centered at the top of the workbench 1, meaning the stone's position may be unstable. However, it's worth noting that the relative movement of the two blocking plates 26 is synchronized. If the stone shifts to one side, it will contact one of the blocking plates 26. The movement of this blocking plate 26 will push the stone towards the other blocking plate 26 until they contact each other, ensuring both blocking plates 26 are in contact with both sides of the stone. Furthermore, the final positions of both blocking plates 26 are identical, thus fixing the stone in the center of the top of the workbench 1. This design avoids the need for frequent adjustments to the carving head position due to the stone not being centered on the top of the worktable 1, reducing the workload of operators and allowing the centered stone to be carved in a better position and condition, thus improving the carving effect of the machine. At the same time, after the machine finishes carving the stone, the gas inside the U-shaped square tube 7 can be released, so that the gas inside no longer acts on the positioning column 17. The positioning spring 19 resets and drives the blocking plate 26 on the positioning horizontal plate 18 to reset and move, thereby releasing the restriction on one or both sides of the stone, that is, the direction of the upper and lower material inlets is released, allowing the stone to be loaded and unloaded normally through the round wheels with different functions, thus improving the machine's performance.

[0038] It is worth mentioning that the initial position of the blocking plate 26 will not affect the normal loading and unloading of the stone. When the other two sides of the stone are restricted, the moving blocking plate 26 will contact the inclined surface of the blocking pulley 36 through the blocking pulley 36, thereby putting pressure on the blocking plate 26. This causes the blocking plate 26 to be restricted at the limiting cylinder 24 through the limiting block 25, so that the auxiliary spring 35 is in a buffer state, which can drive the blocking plate 26 to move upward. As the blocking plate 26 moves towards the stone, it will also gradually move upward. Block 37 is designed as a right-angled trapezoid, so that the stop pulley 36 moves a certain distance on the inclined surface of the stop block 37 and then contacts the parallel surface of the stop block 37. This allows the stop plate 26 to move close to the stone at the current height and fix it. The stop plate 26 can be controlled to clamp the stone at different heights according to the different angles of the inclined surface at the stop block 37. This avoids the stop plate 26 from encountering obstacles in the movement path of the stone, thus preventing the machine from reducing its stability during use and improving the carving effect of the machine.

[0039] In this embodiment, the workbench 1 is also equipped with a support adjustment assembly; the support adjustment assembly includes several sets of support U-shaped seats 40 disposed on the top of the workbench 1, the openings of the support U-shaped seats 40 being disposed away from the workbench 1 and also equipped with several resistance wheels 41; two symmetrical adjustment cylinders 42 are installed at the bottom of each set of support U-shaped 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-shaped seats 40 passes through the top of the workbench 1 and is located inside the adjustment cylinder 43, and the adjustment cylinder 43 and the adjustment cylinder 42 are in sliding fit; an adjustment spring 44 is provided inside 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; the side wall of the adjusting cylinder 42 is provided with several through adjusting slots 45; the outer side wall of the adjusting cylinder 43 is provided with a through adjusting rod 46, and the adjusting rod 46 and the adjusting cylinder 43 are slidably engaged; one end of the adjusting rod 46 is equipped 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 braking spring 48 is sleeved on the adjusting rod 46, one end of the braking 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;

[0040] Once the stone is transported to the worktable 1, it rests on several resistance wheels 41 positioned at several support U-shaped bases 40. These wheels support the stone and provide resistance, preventing the stone's position from shifting during carving and affecting the machine's carving effect and precision. After carving, the resistance wheels 41 can be actively rotated to facilitate stone movement, preventing damage caused by excessive friction between the stone and the worktable 1 surface. This improves the machine's carving efficiency and increases the speed of loading and unloading the stone on the worktable 1. This reduces the limitations of the machine during use. When the stone is transported from below to the worktable 1, it can be placed on several guide wheels 39 on the inclined long rod 38 to reduce the time and workload required for operators to transport the stone, thereby improving the machine's performance. The same applies to unloading, so that the stone is essentially transported to the worktable 1 for carving, further shortening the overall carving time. The contact surface between the side wall of the resistance 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 machine's carving effect and accuracy.

[0041] Simultaneously, after several resistance wheels 41 have supported the stone, pulling the adjusting limit plate 47 outward causes the adjusting rod 46 on it to move at the adjusting cylinder 43, putting the brake spring 48 in a buffered state. This causes the adjusting rod 46 to disengage from the adjusting cylinder 43 and no longer connect to one of the adjusting slots 45, thus releasing the limiting setting on the adjusting cylinder 42. This allows the support U-shaped base 40 to move at the worktable 1 and the adjusting cylinder 43 via the adjusting cylinder 42, putting the adjusting spring 44 in a buffered state. This controls the up-and-down movement of the support U-shaped base 40, allowing the stone placed on it to move along with it. This controls the distance between the stone and the carving head, adapting to stones of different thicknesses and shapes, as well as various carving requirements. For example, when processing thinner stones, the distance can be appropriately increased to prevent excessive cutting and damage. For three-dimensional carvings such as reliefs, the distance can be flexibly adjusted to achieve different depth carving effects. Furthermore, a reasonable distance allows for... The carving head is evenly stressed, reducing excessive friction and collision with the stone. This avoids excessive load and wear caused by too small a distance between the carving head and the stone, reducing replacement frequency, saving costs, and further improving the machine's performance. Reducing the distance between the carving head and the stone allows for more precise positioning, preventing over-carving and under-carving, resulting in clearer pattern outlines, smoother lines, more refined details in the carved patterns and text, smoother edges, fewer flaws and burrs, lower scrap rates, and higher finished product qualification rates. This makes it easier to meet high-quality processing requirements and reduces the machine's limitations during carving, thus improving the carving effect. It's worth noting that although the carving head can move in multiple directions via the motion actuator 3, the distance between the carving head and the stone is adjusted subjectively, shortening the carving head's movement process. This avoids excessive wear caused by the motion actuator 3 driving the carving head to move frequently over long distances, which would affect the machine's lifespan, thereby improving the machine's carving effect and efficiency.

[0042] After the distance between the stone and the carving head is adjusted, the adjusting limit plate 47 is released, and the brake spring 48 resets, causing the adjusting rod 46 on the adjusting limit plate 47 to move back to its original position. This allows the rod to pass through the adjusting cylinder 43 and connect with one of the adjusting slots 45, thus fixing the adjusting cylinder 42 on the adjusting slot 45 in its current position. This fixes the height of the stone at this position, preventing the height of the stone from being affected by non-human factors during carving, improving the carving effect and accuracy of the machine. At the same time, when the adjusting cylinder 42 is limited, the adjusting spring 44, which is in a buffer state, cannot move back to its original position. This causes the elastic force to act 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 adjusting rod 46 from dislodging due to non-human factors, which would cause the position of the adjusting cylinder 42 to change. This improves the machine's usability and further reduces the limitations of the machine during use.

[0043] The present invention also provides a method for operating a stone carving machine, comprising the following steps:

[0044] S1. Place the stone on top of the workbench 1 and clamp it in place by attaching the energy-consuming device.

[0045] S2. The carving head can be operated to carve the stone, and the carving head can be moved in multiple directions through the motion actuator 3 to carve the stone in different positions.

[0046] S3. The positioning and anti-deviation unit is used to fix the stone at the center of the top of the workbench 1.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stone carving machine, comprising a worktable (1) on which a stone is placed; characterized in that: Both sides of the worktable (1) are equipped with baffles (2), and the tops of the two baffles (2) are connected to a motion actuator (3), on which an engraving head is mounted; the worktable (1) is provided with a bonding energy-dissipating device, which is used to reduce the impact force during engraving; the bonding energy-dissipating device includes two symmetrical displacement blocks (4), which are located at the bottom of the worktable (1) and on the same side as the baffles (2); two guide columns (5) are symmetrically installed on the opposite surfaces of the two displacement blocks (4). Two guide tubes (6) are symmetrically installed at the bottom of the workbench (1). The two ends of the guide tubes (6) are slidably connected to the guide columns (5) and the two fit together. U-shaped tubes (7) are provided on the opposite sides of the two guide tubes (6). A positioning and anti-deviation unit is provided on the U-shaped tubes (7). The positioning and anti-deviation unit is used to position the carved stone at the center of the workbench (1). The positioning and anti-deviation unit includes a fixed base (8) set at the output end of the U-shaped tube (7). The fixed base (8) is fixedly installed on the workbench (1). The energy-consuming device includes a displacement screw (9) disposed at the bottom of the workbench (1), with the end 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 blocks (4) are respectively threadedly connected to the two threaded areas; the two ends of the displacement screw (9) are equipped with auxiliary bases (10), and the auxiliary bases (10) are fixedly installed at the bottom of the workbench (1); a drive motor (11) is installed on one of the auxiliary bases (10), and the output end of the drive motor (11) is connected to the displacement screw (9).

2. The stone carving machine according to claim 1, characterized in that: A guide slider (12) is installed on the side of the displacement block (4) near the workbench (1); a guide groove (13) is provided at the bottom of the workbench (1), and the guide groove (13) and the guide slider (12) are slidably engaged; a bent square rod (14) is installed at each of the two displacement 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 set on the same side; one end of the bent square rod (14) is fixedly connected to the displacement block (4), and the other end passes through the baffle (2) and is fixedly connected to the fitting long plate (15); the bent square rod (14) and the baffle (2) are slidably engaged; several through fitting square columns (16) are provided at equal intervals on the opposite surfaces of the two fitting long plates (15), and the fitting square columns (16) and the fitting long plates (15) are slidably engaged.

3. A stone carving machine according to claim 1, characterized in that: A positioning column (17) is slidably connected to the output end of the U-shaped square tube (7). One end of the positioning column (17) is located inside the U-shaped square tube (7), and the other end is connected to a positioning horizontal plate (18). A positioning spring (19) is sleeved on the positioning column (17). One end of the positioning spring (19) is fixedly connected to the fixed base (8), and the other end is fixedly connected to the positioning horizontal plate (18). Two through positioning cylinders (20) are symmetrically installed on the side of the positioning horizontal plate (18). The positioning cylinders (20) and the positioning horizontal plate (18) slide in cooperation. A positioning limiting plate (21) is installed at the end of the positioning cylinder (20) away from the stone, and a U-shaped square base (22) is installed at the other end.

4. A stone carving machine according to claim 3, characterized in that: A compression spring (23) is fitted on the positioning cylinder (20). One end of the compression spring (23) is fixedly connected to the positioning limiting plate (21), and the other end is fixedly connected to the positioning horizontal plate (18). A limiting cylinder (24) is installed inside the U-shaped square base (22). A limiting block (25) is slidably connected on the limiting cylinder (24). The two limiting blocks (25) are connected together to a blocking plate (26). A rubber buffer pad (27) is provided on the side of the blocking plate (26) near the stone. The side of the stone is located at the moving path of the rubber buffer pad (27). A gasket (28) is provided on the opposite side of the U-shaped square base (22) and the positioning horizontal plate (18).

5. A stone carving machine according to claim 2, characterized in that: One end of the fitting square column (16) is connected to a fitting limiting plate, and the other end is connected to an energy-consuming square plate (29). Two through-type limiting columns (30) are symmetrically installed on the energy-consuming square plate (29), and the limiting columns (30) slide in cooperation with the energy-consuming square plate (29). T-shaped base plates (31) are installed on the ends of the two limiting columns (30) near the stone. The two T-shaped base plates (31) are connected to a driving wheel (32). The side of the stone is located at the moving path of the driving 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. A stone carving machine according to claim 4, characterized in that: An auxiliary spring (35) is fitted on the limiting 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 limiting block (25). A blocking pulley (36) is installed at the bottom of the blocking square plate (26). A blocking inclined block (37) is also installed on the side of the U-shaped square tube (7). The top of the blocking inclined block (37) is in contact with the blocking pulley (36). The blocking inclined block (37) is set in a right trapezoidal shape. The top of the blocking inclined block (37) is set in an inclined plane and the inclined plane is far away from the worktable (1). A slanted long rod (38) is installed on the U-shaped square tube (7). Several guide wheels (39) are arranged at equal intervals on the slanted long rod (38).

7. A stone carving machine according to claim 1, characterized in that: The workbench (1) is also provided with a support adjustment assembly; the support adjustment assembly includes several sets of support U-shaped seats (40) set on the top of the workbench (1), the opening of the support U-shaped seats (40) is set away from the workbench (1) and several resistance wheels (41) are also installed; two symmetrical adjustment cylinders (42) are installed at the bottom of each set of support U-shaped 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-shaped seat (40) passes through the top of the workbench (1) and is located inside the adjustment cylinder (43), and the adjustment cylinder (43) and the adjustment cylinder (42) are slidably engaged; an adjustment spring (44) is provided inside 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); several through adjustment slots (45) are provided on the side wall of the adjustment cylinder (42).

8. A stone carving machine according to claim 7, characterized in that: 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 engaged; an adjusting limit plate (47) is installed at one end of the adjusting rod (46), and the other end passes through the adjusting cylinder (43) and is connected to one of the adjusting slots (45); a braking spring (48) is sleeved on the adjusting rod (46), one end of the braking spring (48) is fixedly connected to the adjusting limit plate (47), and the other end is fixedly connected to the outer wall of the adjusting cylinder (43).

9. A method for operating a stone carving machine, using the stone carving machine as described in claim 1, characterized in that, Including the following steps: S1. Place the stone on the top of the workbench (1) and clamp it in place by attaching the energy-consuming device. S2. The carving head can be operated to carve the stone, and the carving head can be moved in multiple directions through the motion actuator (3) to carve the stone in different positions. S3. The positioning and anti-deviation unit is used to fix the stone at the center of the top of the workbench (1).

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