CN118664756A - Cutting device for stone machining - Google Patents

Abstract

The invention provides a cutting device for stone processing, which relates to the technical field of stone processing and comprises a base, wherein a bracket is fixedly arranged above the base, travel switches are symmetrically arranged on the bracket, a first driving motor is fixedly arranged in the inner wall of the bracket, a first screw is fixedly arranged on the first driving motor, a fixing frame is fixedly arranged at the upper end part of the base, a lifting frame is slidably arranged in the fixing frame, a water tank is fixedly arranged on the side wall of the lifting frame, and a water pipe is arranged below the water tank; the crane below is provided with cutting mechanism, and the inside fixed station that is provided with of balladeur train because the stone material cuts the route when fixed for central point, consequently when its upset 180 back, the cutting route still keeps at the middle part, and accessible cutting piece cuts its other face this moment, can reduce the side that collapses that single face atress is too big to lead to like this, and the cutting piece is great with the wearing and tearing area of stone material when having avoided single face cutting to be dark, the easy problem of damaging that takes place for the cutting piece.

Description

A cutting device for stone processing

Technical Field

The invention belongs to the technical field of stone processing, and more specifically, particularly relates to a cutting device for stone processing.

Background Art

Stone, as a high-end building decoration material, is widely used in interior and exterior decoration design, curtain wall decoration and public facilities construction. Currently, the common stones on the market are mainly divided into natural stone and artificial stone. In the process of stone processing, stone cutting equipment is often required.

However, the existing cutting devices for stone processing still have the following shortcomings when used:

1. Most of the existing cutting devices for stone processing are single-sided cutting. When the stone is thick, the required cutting depth is deeper. At this time, excessive force on one side is easy to cause edge collapse, and the wear area between the cutting blade and the stone is large, so the cutting blade is easy to be damaged. When cutting on the other side, the existing equipment needs to remove the stone from the cutting device, and then fix it again after changing the side for cutting. The steps are cumbersome, resulting in low cutting efficiency.

2. When the existing stone processing cutting device processes the pre-cracked or naturally cracked stone, it is difficult for the equipment to control the direction of the cracks during the cutting process, which easily leads to the expansion of the cracks and the damage of the stone.

Therefore, in view of this, the existing structure and defects are studied and improved, and a cutting device for stone processing is provided, in order to achieve a more practical purpose.

Summary of the invention

In order to solve the above technical problems, the present invention provides a cutting device for stone processing to solve the above problems.

A cutting device for stone processing, comprising a base, a bracket fixedly installed on the top of the base, a travel switch symmetrically arranged on the bracket, a first drive motor fixedly installed in the inner wall of the bracket, a first screw fixedly installed on the first drive motor, a fixed frame fixedly installed on the upper end of the base, a lifting frame slidably installed inside the fixed frame, a water tank fixedly installed on the side wall of the lifting frame, and a water pipe arranged below the water tank;

A cutting mechanism is provided below the lifting frame;

The cutting mechanism comprises a second driving motor, a rotating shaft is installed on the output end of the second driving motor, a cutting blade is installed on the free end of the rotating shaft, and dovetail grooves are symmetrically provided on the lifting frame.

Preferably, dovetail blocks are slidably installed inside the two dovetail grooves, first springs are fixedly installed on the upper ends of the two dovetail blocks, and the ends of the two first springs away from the two dovetail blocks are fixedly installed in the inner walls of the two dovetail grooves respectively.

Preferably, pressure strips are fixedly mounted on the side walls of the two dovetail blocks, and the two pressure strips are respectively located on both sides of the cutting piece.

Preferably, a third driving motor is arranged inside the fixing frame, an electric telescopic rod is installed on the output end of the third driving motor, and the electric telescopic rod is fixedly connected to the bottom of the lifting frame.

Preferably, a slide is slidably mounted on the bracket, a fixed block is fixedly mounted inside the slide, and the first screw is threadably mounted in the fixed block.

Preferably, inner grooves are symmetrically opened in the inner wall of the slide, and clamping strips are slidably installed inside the two inner grooves. Second springs are fixedly installed on the opposite ends of the two clamping strips, and the ends of the two second springs away from the clamping strips are fixedly connected to the inner walls of the two inner grooves respectively.

Preferably, a fixed platform is provided inside the slide, and central columns are fixedly installed at both ends of the fixed platform, and the two central columns are rotatably installed in the inner wall of the slide respectively.

Preferably, a cutting groove is provided inside the fixing platform, and clamping grooves are provided on opposite ends of the two clamping strips, and the two clamping grooves are adapted to the fixing platform.

Preferably, inner strips are symmetrically fixedly installed in the inner wall of the fixing platform, second screw rods are fixedly installed inside the two groups of inner strips, and third springs are sleeved on the two groups of second screw rods.

Preferably, the two groups of second screw rods are symmetrically slidably mounted with clamping plates, the two ends of the two groups of third springs are respectively fixedly connected to each group of clamping plates, the two groups of second screw rods are symmetrically threadedly mounted with threaded rings, and each group of clamping plates is respectively located between each group of threaded rings.

Compared with the prior art, the present invention has the following beneficial effects:

In the present invention, by providing a cutting disc, a fixing platform, a second screw, a clamping plate and a threaded ring, each set of the clamping plates will be driven to move toward the middle on the second screw under the rotation of each set of the threaded ring, and the stone will be fixed under the movement of each set of the clamping plates, so that the fixed position of the stone can be adjusted according to the cutting line when the device is used, and the cutting position of the stone can be kept in the middle perpendicular to the cutting disc, and the stone can be ensured to be firmly fixed inside the fixing platform, effectively avoiding the problem of edge collapse caused by vibration or movement of the stone during the cutting process, thereby enhancing the cutting effect of the stone;

In the present invention, a first drive motor, a first screw, a second drive motor, a cutting blade, a slide, and a fixed block are provided. The first drive motor drives the first screw to rotate, and because the first screw is threadedly installed in the fixed block, the fixed block will move horizontally under the rotation of the first screw, and the fixed block will drive the slide to move horizontally, and the slide will drive the stone fixed inside to move. When the stone moves to contact with the cutting blade, the cutting operation will be completed. The cutting speed is controlled by the second drive motor, and the feeding speed is controlled by the first drive motor. The combination of the two effectively avoids the problem that the thermal stress and mechanical stress of the stone are aggravated due to insufficient cooling during the cutting process, and cutting too fast may cause local overheating of the stone, while cutting too slowly may cause cracking due to increased friction.

In the present invention, through the design of two travel switches, when cutting is ready, the slide can be moved to a position in contact with the right end travel switch, and the third drive motor can be started at this time. Under the action of the third drive motor, the electric telescopic rod will be driven to extend and retract, and the electric telescopic rod will drive the lifting frame to lift and lower inside the fixed frame. At this time, the lifting frame will drive the cutting blade to lift and lower, and then the lifting amplitude of the cutting blade can be controlled by the third drive motor, so as to facilitate the adjustment of the cutting depth of the stone. After the adjustment is completed, the cutting starts, and when the slide moves to a position in contact with the left end travel switch, the first drive motor will be turned off, so that the slide can only operate in the cutting area, which greatly increases the safety of the equipment during operation.

In the present invention, by providing a clamping strip, a second spring and a fixed platform, when the stone is thicker, one side of the stone can be cut to half the depth by the cutting blade, and then the two clamping strips can be pulled outwards, and the two second springs will be squeezed to produce deformation under the movement of the two clamping strips. At this time, the two clamping strips will slide to both ends on the fixed platform, and the fixed platform can be turned over at this time. After the fixed platform is turned over 180°, the two clamping strips can be loosened at this time, so that the two clamping strips are clamped at both ends of the fixed platform again to complete the limitation of the stone. Since the cutting route of the stone is the central position when it is fixed, the cutting route is still maintained in the middle after it is turned over 180°. At this time, the other side of the stone can be cut by the cutting blade, which can reduce the edge collapse caused by excessive force on one side, and avoid the problem that the wear area between the cutting blade and the stone is large when the single-sided cutting is deep, and the cutting blade is easily damaged.

In the present invention, by providing a water tank, a water pipe and a cutting blade, when the cutting blade is cutting a stone, the water in the water tank will flow out through the water pipe, and the water flow will form a parabola under the action of gravity to impact the cutting part of the cutting blade and the stone, so that the temperature of the cutting area can be effectively reduced during the cutting process, the edge collapse of the stone caused by thermal stress can be reduced, and dust can be reduced to maintain the sharpness of the saw blade;

In the present invention, by providing a dovetail groove, a dovetail block, a first spring and a pressure strip, when the pressure strip moves, it will drive the two dovetail blocks to slide inside the two dovetail grooves. At this time, the two dovetail blocks will drive the first spring to be compressed, and the first spring will apply a reverse thrust to the pressure strip. Under the action of this thrust, the two pressure strips can always be in contact with the position near the cutting part of the stone. For stones with pre-cracks or natural cracks, appropriate pressure can help control the direction of the cracks during the cutting process, avoid unnecessary crack expansion, and thus enhance the cutting effect.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention;

FIG2 is a schematic diagram of the connection structure of the lifting frame of the present invention;

FIG3 is a schematic diagram of the explosion structure of the layering strip connection of the present invention;

FIG4 is a schematic diagram of the explosion structure of the fixing frame connection of the present invention;

FIG5 is a schematic diagram of the dovetail block connection structure of the present invention;

FIG6 is a schematic diagram of the fixed platform connection explosion structure of the present invention;

FIG7 is a schematic diagram of the explosion structure of the clamp strip connection of the present invention;

FIG. 8 is a schematic diagram of the splint connection structure of the present invention.

In the figure, the corresponding relationship between the component names and the figure numbers is: 11, base; 12, bracket; 13, travel switch; 14, first drive motor; 15, first screw; 16, fixed frame; 17, lifting frame; 18, water tank; 19, water pipe; 21, second drive motor; 22, rotating shaft; 23, cutting blade; 24, dovetail groove; 25, dovetail block; 26, first spring; 27, pressure strip; 28, third drive motor; 29, electric telescopic rod; 31, slide; 32, fixed block; 33, inner groove; 34, clamping strip; 35, second spring; 36, fixed table; 37, center column; 38, cutting groove; 39, slot; 41, inner strip; 42, second screw; 43, third spring; 44, clamping plate; 45, threaded ring.

DETAILED DESCRIPTION

The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Referring to FIGS. 1 to 8 , the present invention provides a cutting device for stone processing, comprising a base 11, a bracket 12 is fixedly mounted above the base 11, a travel switch 13 is symmetrically arranged on the bracket 12, a first drive motor 14 is fixedly mounted in the inner wall of the bracket 12, a first screw 15 is fixedly mounted on the first drive motor 14, a fixing frame 16 is fixedly mounted on the upper end of the base 11, a lifting frame 17 is slidably mounted inside the fixing frame 16, a water tank 18 is fixedly mounted on the side wall of the lifting frame 17, and a water pipe 19 is arranged below the water tank 18;

A cutting mechanism is provided below the lifting frame 17;

The cutting mechanism includes a second driving motor 21, a rotating shaft 22 is installed on the output end of the second driving motor 21, a cutting blade 23 is installed on the free end of the rotating shaft 22, and dovetail grooves 24 are symmetrically opened on the lifting frame 17. Dovetail blocks 25 are slidably installed inside the two dovetail grooves 24. The upper ends of the two dovetail blocks 25 are fixedly installed with first springs 26. The ends of the two first springs 26 away from the two dovetail blocks 25 are respectively fixedly installed in the inner walls of the two dovetail grooves 24. The side walls of the two dovetail blocks 25 are fixedly installed with pressure strips 27. The two pressure strips 27 are respectively located on both sides of the cutting blade 23. When the cutting blade 23 is cutting the stone, the water in the water tank 18 will flow out through the water pipe 19. Under the action of gravity, the water flow will form a parabola to impact the cutting part of the cutting blade 23 and the stone, so that when cutting, the cutting blade 23 will be cut. During the process, the temperature of the cutting area can be effectively reduced, the chipping of the stone caused by thermal stress can be reduced, the dust can be reduced, and the sharpness of the saw blade can be maintained; when the cutting blade 23 is cutting the stone, the pressure strip 27 will also contact the stone, and the pressure strip 27 will move upward under the force, and the pressure strip 27 will drive the two dovetail blocks 25 to slide inside the two dovetail grooves 24 when moving. At this time, the two dovetail blocks 25 will drive the first spring 26 to be compressed, and the first spring 26 will apply a reverse thrust to the pressure strip 27. Under the action of the thrust, the two pressure strips 27 can always be in contact with the position near the cutting part of the stone. For stones with pre-cracks or natural cracks, appropriate pressure can help control the direction of the cracks during the cutting process, avoid unnecessary crack expansion, and thus enhance the cutting effect.

A third drive motor 28 is provided inside the fixed frame 16, and an electric telescopic rod 29 is installed on the output end of the third drive motor 28, and the electric telescopic rod 29 is fixedly connected to the bottom of the lifting frame 17. A slide 31 is slidably installed on the bracket 12. Through the design of two travel switches 13, when cutting is ready, the slide 31 can be moved to a position in contact with the right end travel switch 13, and the third drive motor 28 can be started at this time. Under the action of the third drive motor 28, the electric telescopic rod 29 will be driven to extend and retract, and the electric telescopic rod 29 will drive the lifting frame 17 to rise and fall inside the fixed frame 16. At this time, the lifting frame 17 will drive the cutting blade 23 to rise and fall, and then the lifting amplitude of the cutting blade 23 can be controlled by the third drive motor 28, so as to facilitate the adjustment of the cutting depth of the stone. After the adjustment is completed, cutting begins, and when the slide 31 moves to a position in contact with the left end travel switch 13, the first drive motor 14 will be turned off, so that the slide 31 can only operate in the cutting area, which greatly increases the safety of the equipment during operation;

A fixing block 32 is fixedly installed inside the slide 31, and the first screw rod 15 is threadedly installed in the fixing block 32. When the stone is fixed, the second drive motor 21 can be started at this time, and the rotating shaft 22 will be driven to rotate under the action of the second drive motor 21, and the rotating shaft 22 will drive the cutting blade 23 to rotate inside the lifting frame 17. At this time, the first drive motor 14 can be started, and the first screw rod 15 will be driven to rotate under the action of the first drive motor 14. Since the first screw rod 15 is threadedly installed in the fixing block 32, the fixing block 32 is rotated under the rotation of the first screw rod 15. 2 will move horizontally, and the fixed block 32 will drive the slide 31 to move horizontally, and the slide 31 will drive the stone fixed inside to move. When the stone moves to contact with the cutting blade 23, the cutting operation will be completed. The cutting speed is controlled by the second drive motor 21, and the feeding speed is controlled by the first drive motor 14. The combination of the two effectively avoids the problem of aggravating the thermal stress and mechanical stress of the stone due to insufficient cooling during the cutting process. Cutting too fast may cause local overheating of the stone, while cutting too slowly may cause cracking due to increased friction.

Inner grooves 33 are symmetrically provided in the inner wall of the slide 31, and clamping strips 34 are slidably installed in the two inner grooves 33. Second springs 35 are fixedly installed on the ends of the two clamping strips 34 that are away from each other. The ends of the two second springs 35 that are away from the clamping strips 34 are respectively fixedly connected to the inner walls of the two inner grooves 33. A fixing platform 36 is provided inside the slide 31. When the stone is thick, one side of the stone can be cut to half the depth by the cutting blade 23, and then the two clamping strips 34 can be pulled outward. The movement of the two clamping strips 34 will squeeze the two second springs 35 to produce deformation. At this time, the two clamping strips 34 will be The fixed platform 36 slides to both ends, and the fixed platform 36 can be turned over at this time. When the fixed platform 36 is turned over 180°, the two clamping strips 34 can be loosened at this time, so that the two clamping strips 34 are clamped at both ends of the fixed platform 36 again to complete the limit. Since the cutting route of the stone is the center position when it is fixed, the cutting route is still kept in the middle after it is turned over 180°. At this time, the other side can be cut by the cutting blade 23, which can reduce the edge collapse caused by excessive force on one side, and avoid the problem that the wear area between the cutting blade and the stone is large when the single-sided cutting is deep, and the cutting blade is easily damaged;

A central column 37 is fixedly installed at both ends of the fixed platform 36, and the two central columns 37 are rotatably installed in the inner wall of the slide 31. A cutting groove 38 is opened inside the fixed platform 36, and a card slot 39 is opened on the opposite ends of the two clamping strips 34. The two card slots 39 are adapted to the fixed platform 36. An inner strip 41 is symmetrically fixedly installed in the inner wall of the fixed platform 36. A second screw rod 42 is fixedly installed inside the two groups of inner strips 41. A third spring 43 is sleeved on the two groups of second screws 42. Clamps 44 are symmetrically slidably installed on the two groups of second screws 42. The two ends of the two groups of third springs 43 are fixedly connected to each group of clamps 44, respectively. Threaded rings 45 are symmetrically threadedly installed on the two groups of second screws 42. Each group of clamps 44 is respectively located at Between each set of threaded rings 45, when in use, the stone can be placed between the two sets of clamping plates 44, and then each set of threaded rings 45 can be rotated on each second screw 42 respectively. The rotation of each set of threaded rings 45 will drive each set of clamping plates 44 to move toward the middle on the second screw 42, and the movement of each set of clamping plates 44 will complete the fixation of the stone, so that the device can adjust the fixed position of the stone according to the cutting line when in use, and can keep the cutting position of the stone in the middle perpendicular to the cutting blade 23, and can ensure that the stone is firmly fixed inside the fixing table 36, effectively avoiding the edge collapse problem caused by vibration or movement of the stone during the cutting process, thereby enhancing the cutting effect of the stone.

Working principle:

In the first step, when using, the stone can be placed between the two groups of clamping plates 44, and then each group of threaded rings 45 can be rotated on each second screw rod 42 respectively. Under the rotation of each group of threaded rings 45, each group of clamping plates 44 will be driven to move toward the middle on the second screw rod 42 respectively, and the movement of each group of clamping plates 44 will complete the fixation of the stone, so that the device can adjust the fixed position of the stone according to the cutting line when in use, so that the cutting position of the stone can be kept in the middle perpendicular to the cutting blade 23, and it can be ensured that the stone is firmly fixed inside the fixing table 36, effectively avoiding the problem of edge collapse caused by vibration or movement of the stone during the cutting process, thereby enhancing the cutting effect of the stone;

In the second step, after the stone is fixed, the second drive motor 21 can be started. Under the action of the second drive motor 21, the rotating shaft 22 will be driven to rotate, and the rotating shaft 22 will drive the cutting blade 23 to rotate inside the lifting frame 17. At this time, the first drive motor 14 can be started. Under the action of the first drive motor 14, the first screw 15 will be driven to rotate. Since the first screw 15 is threadedly installed in the fixed block 32, the fixed block 32 will move horizontally under the rotation of the first screw 15. At this time, the fixed block 32 will drive the slide 31 to move horizontally. At this time, the slide 31 will drive the stone fixed inside it to move. When the stone moves to contact with the cutting blade 23, the cutting operation will be completed. The cutting speed is controlled by the second drive motor 21, and the feeding speed is controlled by the first drive motor 14. The combination of the two effectively avoids the problem that the thermal stress and mechanical stress of the stone are aggravated due to insufficient cooling during the cutting process. Cutting too fast may cause local overheating of the stone, while cutting too slowly may cause cracking due to increased friction.

The third step is that through the design of the two travel switches 13, when the cutting is ready, the slide 31 can be moved to the position in contact with the right end travel switch 13, and the third drive motor 28 can be started at this time. Under the action of the third drive motor 28, the electric telescopic rod 29 will be driven to extend and retract, and the electric telescopic rod 29 will drive the lifting frame 17 to rise and fall inside the fixed frame 16. At this time, the lifting frame 17 will drive the cutting blade 23 to rise and fall, and then the lifting amplitude of the cutting blade 23 can be controlled by the third drive motor 28, so as to facilitate the adjustment of the cutting depth of the stone. After the adjustment is completed, the cutting starts, and when the slide 31 moves to the position in contact with the left end travel switch 13, the first drive motor 14 will be turned off, so that the slide 31 can only operate in the cutting area, which greatly increases the safety of the equipment during operation;

The fourth step is that when the stone is thicker, the cutting blade 23 can be used to cut one side of the stone to half the depth, and then the two clamping strips 34 can be pulled outward. Under the movement of the two clamping strips 34, the two second springs 35 will be squeezed to produce deformation. At this time, the two clamping strips 34 will slide to both ends on the fixed platform 36. At this time, the fixed platform 36 can be turned over. After the fixed platform 36 is turned over 180°, the two clamping strips 34 can be loosened at this time, so that the two clamping strips 34 are clamped at both ends of the fixed platform 36 again to complete the limitation of the stone. Since the cutting route of the stone is the central position when it is fixed, after it is turned over 180°, the cutting route remains in the middle. At this time, the cutting blade 23 can be used to cut the other side, which can reduce the collapse of the edge caused by excessive force on one side, and avoid the problem that the wear area of the cutting blade and the stone is large when the single-sided cutting is deep, and the cutting blade is easily damaged;

Step 5: When the cutting blade 23 is cutting the stone, the water in the water tank 18 will flow out through the water pipe 19. Under the action of gravity, the water flow will form a parabola and impact on the cutting part of the cutting blade 23 and the stone, so that the temperature of the cutting area can be effectively reduced during the cutting process, the edge collapse of the stone caused by thermal stress can be reduced, and dust can be reduced to maintain the sharpness of the cutting blade;

The sixth step, when the cutting blade 23 is cutting the stone, the pressure strip 27 will also contact the stone. At this time, the pressure strip 27 will move upward under the force, and the pressure strip 27 will drive the two dovetail blocks 25 to slide inside the two dovetail grooves 24 when moving. At this time, the two dovetail blocks 25 will drive the first spring 26 to be compressed, and the first spring 26 will apply a reverse thrust to the pressure strip 27. Under the action of this thrust, the two pressure strips 27 can always be in contact with the position near the cutting part of the stone. For stones with pre-cracks or natural cracks, appropriate pressure can help control the direction of the cracks during the cutting process, avoid unnecessary crack expansion, and thus enhance the cutting effect.

The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims (10)

1. The utility model provides a cutting device for stone material processing, includes base (11), base (11) top fixed mounting has support (12), the symmetry is provided with travel switch (13) on support (12), fixed mounting has first driving motor (14) in support (12) inner wall, fixed mounting has first screw rod (15), its characterized in that on first driving motor (14): the water tank is characterized in that a fixing frame (16) is fixedly arranged at the upper end part of the base (11), a lifting frame (17) is slidably arranged in the fixing frame (16), a water tank (18) is fixedly arranged on the side wall of the lifting frame (17), and a water pipe (19) is arranged below the water tank (18);

a cutting mechanism is arranged below the lifting frame (17);

The cutting mechanism comprises a second driving motor (21), a rotating shaft (22) is arranged at the output end of the second driving motor (21), a cutting sheet (23) is arranged at the free end of the rotating shaft (22), and dovetail grooves (24) are symmetrically formed in the lifting frame (17).

2. A cutting device for stone working according to claim 1, characterized in that the inside of both said dovetail grooves (24) is slidingly fitted with a dovetail block (25), the upper ends of both said dovetail blocks (25) being fixedly fitted with a first spring (26);

One ends of the two first springs (26) far away from the two dovetail blocks (25) are respectively fixedly arranged in the inner walls of the two dovetail grooves (24).

3. A cutting device for stone working according to claim 2, characterized in that the side walls of both said dovetails (25) are fixedly provided with battens (27);

Wherein, two layering (27) are located cutting piece (23) both sides respectively.

4. A cutting device for stone working according to claim 1, characterized in that the inside of the holder (16) is provided with a third drive motor (28);

the output end of the third driving motor (28) is provided with an electric telescopic rod (29), and the electric telescopic rod (29) is fixedly connected with the bottom of the lifting frame (17).

5. A cutting device for stone working according to claim 1, characterized in that said carriage (31) is slidingly mounted on said frame (12);

The sliding frame (31) is internally and fixedly provided with a fixed block (32), and the first screw rod (15) is arranged in the fixed block (32) in a threaded manner.

6. A cutting device for stone working according to claim 5, characterized in that the inner walls of the carriage (31) are symmetrically provided with inner grooves (33), and that both inner grooves (33) are internally provided with clamping bars (34) in a sliding manner;

The two holding strips (34) are fixedly provided with second springs (35) at the ends which are away from each other, and one ends of the two second springs (35) which are away from the holding strips (34) are fixedly connected with the inner walls of the two inner grooves (33) respectively.

7. A cutting device for stone working according to claim 6, characterized in that the carriage (31) is internally provided with a fixed table (36), both ends of the fixed table (36) being fixedly provided with a central column (37);

wherein the two center posts (37) are respectively rotatably installed in the inner wall of the carriage (31).

8. A cutting device for stone working according to claim 7, characterized in that said fixed table (36) is internally provided with cutting grooves (38);

Wherein, two clamping grooves (39) are arranged at opposite ends of the clamping strip (34), and the two clamping grooves (39) are matched with the fixed table (36).

9. A cutting device for stone working according to claim 8, characterized in that said fixed table (36) has inner strips (41) symmetrically and fixedly mounted in the inner wall, and in that both sets of said inner strips (41) have second screws (42) fixedly mounted therein;

wherein, the two groups of second screw rods (42) are respectively sleeved with a third spring (43).

10. A cutting device for stone working according to claim 9, characterized in that two sets of said second screws (42) are symmetrically and slidably fitted with clamping plates (44), and two ends of two sets of said third springs (43) are fixedly connected to each set of clamping plates (44), respectively;

wherein, two groups of second screw rods (42) are symmetrically provided with screw rings (45) in a screw thread way, and each group of clamping plates (44) is respectively positioned between each group of screw rings (45).