CN118237967A - Metal cutting equipment - Google Patents

Abstract

The present invention provides a metal cutting equipment, belonging to the field of metal processing technology. It comprises a base, a shell is fixedly connected to the top of the base, a moving device, a fixing device and a moving frame are fixedly connected to the top of the base from left to right in sequence, a cutting device is arranged on the outside of the moving frame, a barrier ring is clamped on the top of the fixing device, a No. 1 pipe and a No. 2 pipe are respectively fixedly connected to the upper and lower ends of one side of the barrier ring, and a nozzle is arranged inside the No. 1 pipe. By arranging the barrier ring and the nozzle, the present invention can spray coolant on the cutting part through the nozzle to cool it down when the device is cutting, so that the tool will not cause damage to itself and the workpiece due to the high temperature generated during operation, thereby improving the service life of the tool, and the barrier ring is used to block the coolant and the metal residue splashed during cutting to prevent them from entering the interior of the device, and also to prevent the metal residue from splashing and injuring the staff.

Description

Metal cutting equipment

Technical Field

The present invention relates to the technical field of metal processing, and in particular to a metal cutting equipment.

Background technique

In modern manufacturing, metal processing is a must in production and manufacturing, and metal cutting is a part of the processing. It is a processing process that uses tools to cut off excess material from the workpiece to obtain parts that meet the requirements in terms of shape, dimensional accuracy and surface quality. In this processing process, metal cutting equipment is needed to carry out the work.

When existing metal cutting equipment is used to work on smaller metal workpieces, the workpiece is usually placed on a fixing device to fix the workpiece, and then the cutting device above is adjusted, aligned and lowered, and then the workpiece is cut by the high-speed rotation of the tool at the bottom of the cutting device to achieve the purpose of cutting the workpiece. However, in actual work, because the tool at the bottom of the cutting device needs to rotate at a high speed and cut the workpiece, the contact surface between the tool and the workpiece will generate high temperature, which will cause certain damage to the tool itself after working, reducing the service life of the tool, and when cutting, the cut metal residue will splash everywhere, which is not convenient for cleaning and is easy to cause harm to the staff, reducing the practicality of the device.

Therefore, the present invention provides a metal cutting equipment to meet the needs.

Summary of the invention

The technical problem to be solved by the present invention is to provide a metal cutting equipment by setting a barrier ring and a nozzle. When the device is performing cutting work, coolant can be sprayed on the cutting part through the nozzle to cool it down, so that the tool will not be damaged by the high temperature generated when working and the workpiece, thereby improving the service life of the tool. The barrier ring is used to block the coolant and metal residues splashed during cutting to prevent them from entering the interior of the device and also to prevent the metal residues from splashing and injuring the staff. The above arrangement can solve the problem that in actual work, the tool at the bottom of the cutting device needs to rotate at high speed and cut the workpiece, so that the contact surface between the tool and the workpiece will generate high temperature, so that after the tool is working, it will cause certain damage to itself, reducing the service life of the tool, and when cutting, the cut metal residues will splash everywhere, which is not convenient for cleaning and is easy to cause harm to the staff, reducing the practicality of the device.

In order to solve the above technical problems, the present invention provides the following technical solutions:

A metal cutting equipment comprises a base, wherein a shell is fixedly connected to the top of the base on all sides, a moving device, a fixing device and a moving frame are fixedly connected to the top of the base in sequence from left to right, a cutting device is arranged on the outside of the moving frame, a blocking ring is clamped on the top of the fixing device, a No. 1 pipe and a No. 2 pipe are fixedly connected to the upper and lower ends of one side of the blocking ring respectively, and a nozzle is arranged inside the No. 1 pipe; a clamping assembly, wherein the clamping assembly is used to fix the blocking ring on the top of the fixing device, and the clamping assembly is connected to the blocking ring; a fixing assembly, wherein the fixing assembly is used to fix the nozzle inside the No. 1 pipe, and the fixing assembly is connected to the nozzle.

Optionally, the clamping assembly includes a fixing card fixedly connected to the bottom of the barrier ring, both sides of the bottom of the fixing card are fixedly connected with side spring sheets, and the tops of the two side spring sheets away from each other are fixedly connected with clamping blocks.

By adopting the above technical solution, the internal components of the clamping assembly are distributed more reasonably, making it easier for each component to work.

Optionally, there are two card-connecting components, which are respectively located at the two ends of the bottom of the barrier ring. A through hole is provided on the inner side of the fixing card. The width of the fixing card gradually decreases from top to bottom. The bottom end of the fixing card is arc-shaped. Stress grooves are provided on the sides of the two side spring sheets close to each other, and the sides of the two card blocks away from each other are arc-shaped.

By adopting the above technical solution, the fixed card can be more easily inserted into the card cavity through the gradual reduction of its width and the arc design of its bottom, thereby improving the accuracy of insertion and reducing the difficulty of operation.

Optionally, both ends of the top of the fixing device are provided with a clamping cavity adapted to the fixing card, and both sides of the clamping cavity are provided with a limiting cavity adapted to the clamping block.

By adopting the above technical solution, it is convenient to realize the rapid disassembly and assembly of the clamping assembly through the cooperation between the clamping cavity and the limiting cavity, thereby improving the working efficiency of the device.

Optionally, the fixing assembly includes a main elastic bar fixedly connected to the outside of the fixing ring, a raised bar fixedly connected to the other side of the main elastic bar, an inner hole is provided inside the main elastic bar, and a weakened groove is provided at the bottom of the raised bar.

By adopting the above technical solution, the internal components of the fixing assembly are more reasonably distributed, and the stability of the fixing assembly inside the No. 1 pipe is strengthened by the raised strips. The raised strips are more easily deformed when deformed by force through the weakened grooves, which reduces the force required for disassembling and assembling the nozzle and reduces the manpower burden during work.

Optionally, the fixing components are distributed in an annular shape outside the fixing ring, and the main elastic strip and the raised strip are an integrated structure.

By adopting the above technical solution, it is convenient to fix the nozzle inside the No. 1 pipe by fixing the assembly.

Optionally, a plurality of fixing cavities adapted to the main elastic strips are opened on the inner side of the No. 1 tube, and a plurality of convex cavities adapted to the convex strips are opened on the outer side of the fixing cavities.

By adopting the above technical solution, the coordination between the fixed cavity and the protruding cavity is facilitated, thereby realizing the rapid disassembly and assembly of the nozzle.

Optionally, the interior of the barrier ring is fixedly connected to a limiting ring, and a flow hole is provided inside the barrier ring above the limiting ring, and the flow hole is fixedly connected to the No. 2 pipe.

By adopting the above technical solution, the limiting ring and the flow hole can cooperate to discharge the used coolant out of the barrier ring.

Optionally, one end of the top of the base away from the fixing device is fixedly connected with a water supply device and a recovery device in sequence from left to right, the water supply device is fixedly connected to the nozzle through a water pipe, and the recovery device is fixedly connected to the No. 2 pipe through a water pipe.

By adopting the above technical solution, the water supply device and the recovery device can easily realize the supply and recovery of the coolant.

Optionally, a support seat is fixedly connected to the bottom of the base, a control board is fixedly connected to the outer side of the shell, and one end of the moving frame is connected to a fixing device.

By adopting the above technical solution, it is convenient for the support seat to fix the device.

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

In the above scheme, by setting a barrier ring and a nozzle, when the device is performing cutting work, the nozzle can spray coolant on the cutting part to cool it down, so that the tool will not cause damage to itself and the workpiece due to the high temperature generated during work, thereby improving the service life of the tool and ensuring the safety of the workpiece during production. The barrier ring blocks the coolant and metal residues splashed during cutting to prevent them from entering the interior of the device and also prevents the metal residues from splashing and injuring the staff. The coolant and metal residues are recovered through the No. 2 pipe and recovery device to prevent them from affecting the cutting work. There is no need to clean up the metal residues after work, which reduces the work steps and improves work efficiency.

By arranging a snap-on assembly at the bottom of the barrier ring, the snap-on assembly can realize the rapid disassembly and assembly of the barrier ring at the top of the fixing device, so that when the barrier ring needs to be replaced, the barrier ring can be disassembled and assembled without complicated operations. The upper and lower widths of the fixing card and the arc design at the bottom make it easier to plug in the snap-on assembly, which improves the accuracy of plugging in. The stress groove on the inner side of the side spring piece makes it easier for the side spring piece to deform when subjected to force, making plugging in more labor-saving. The block design on both sides greatly improves the stability of the snap-on assembly when locked, ensures the stability of the barrier ring during operation, and improves the practicality of the device.

By arranging a fixing component on the outside of the fixing ring, the nozzle can be quickly plugged into the No. 1 pipe. The raised strip improves the stability of the nozzle in the No. 1 pipe, and the nozzle has two states: fixed and removed. When debris and dirt appear on the inner wall of the barrier ring after working for a long time, the nozzle can be directly removed and the inner wall of the barrier ring can be flushed. The device does not need an external device to achieve self-cleaning, which improves the practicability of the device and reduces working costs.

By arranging an inner hole and a weakened groove inside the fixed component, the inner hole can reasonably distribute the stress of the fixed component when it moves and deforms, which saves materials and improves the service life of the fixed component. The weakened groove makes it easier for the raised strip to deform when it is deformed by force, reducing the force required for disassembling and assembling the nozzle, reducing the manpower burden at work, and improving the working efficiency of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

FIG1 is a schematic diagram of a three-dimensional structure of a metal cutting equipment from a first perspective;

FIG2 is a schematic diagram of a three-dimensional structure of a metal cutting equipment from a second viewing angle;

FIG3 is a schematic diagram of the coordinated three-dimensional structure of the moving device, the moving frame and the cutting device;

FIG4 is a schematic diagram of the coordinated three-dimensional structure of the barrier ring and the water supply device;

FIG5 is a schematic diagram of the three-dimensional structure of the fixing device;

FIG6 is a schematic diagram of the three-dimensional structure of the barrier ring;

FIG7 is a schematic diagram of a cutaway three-dimensional structure of a barrier ring;

FIG8 is a schematic diagram of the three-dimensional structure of the clamping assembly;

FIG9 is a schematic diagram of the three-dimensional structure of the nozzle and the fixing ring;

FIG10 is a schematic diagram of the three-dimensional structure of the fixing ring and the fixing assembly;

FIG11 is a schematic diagram of the three-dimensional structure of the fixing assembly;

FIG12 is a partial cross-sectional schematic diagram of a fixing device;

FIG. 13 is a schematic cross-sectional view of the fixing ring.

[Reference Symbols]

1. Base; 2. Support seat; 3. Shell; 4. Control panel; 5. Moving device; 6. Moving frame; 7. Cutting device; 8. Fixing device; 9. Barrier ring; 10. No. 1 pipe; 11. No. 2 pipe; 12. Nozzle; 13. Water supply device; 14. Recovery device; 15. Snap-on assembly; 1501. Fixing card; 1502. Side spring piece; 1503. Block; 16. Limiting ring; 17. Fixing ring; 18. Fixing assembly; 1801. Main spring strip; 1802. Raised strip; 1803. Inner hole; 1804. Weakened groove; 19. Snap-on cavity; 20. Limiting cavity; 21. Fixing cavity; 22. Raised cavity.

As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments.

Detailed ways

The following is a detailed description of a metal cutting equipment provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

As shown in Figures 1 to 5, an embodiment of the present invention provides a metal cutting equipment, including a base 1, a shell 3 is fixedly connected to the top of the base 1, a moving device 5, a fixing device 8 and a moving frame 6 are fixedly connected to the top of the base 1 from left to right in sequence, a blocking ring 9 is clamped on the top of the fixing device 8, a support seat 2 is fixedly connected to the bottom of the base 1, and a control panel 4 is fixedly connected to the outside of the shell 3; the workpiece is placed above the lifting component at the top of the fixing device 8, the blocking ring 9 is arranged above the mounting seat at the bottom of the fixing device 8, the lifting component is located inside the blocking ring 9, and the lifting component and the blocking ring 9 do not contact each other, the lifting component at the top of the fixing device 8 can fix the workpiece, and drive the workpiece to rise and fall to a suitable cutting height, adjust the cutting position of the workpiece, and the blocking ring 9 will not move when the lifting component is rising and falling.

As shown in Figures 1 to 5, a cutting device 7 is provided on the outside of the moving frame 6, and one end of the moving frame 6 is connected to the fixing device 8; the moving device 5 is controlled so that the cutting device 7 moves on the outside of the moving frame 6 to just above the workpiece, and then the cutting device 7 is controlled to drive the tool to descend to the inside of the barrier circle 9 through the moving component at the bottom of the cutting device 7, and contact with the workpiece above the fixing device 8, and the tool is driven by the moving component to perform fine adjustment of the longitudinal position to perform cutting processing on the workpiece. When the moving component is fine-tuning the cutting, the position of the top component of the cutting device 7 does not need to be moved.

As shown in Figures 1 to 7, the upper and lower ends of one side of the barrier ring 9 are respectively fixedly connected to the No. 1 pipe 10 and the No. 2 pipe 11, the No. 1 pipe 10 is provided with a nozzle 12 inside, and a fixing assembly 18 is used to fix the nozzle 12 inside the No. 1 pipe 10, and the fixing assembly 18 is connected to the nozzle 12, and the end of the top of the base 1 away from the fixing device 8 is fixedly connected with a water supply device 13 and a recovery device 14 from left to right in sequence, and the water supply device 13 is fixedly connected to the nozzle 12 through a water pipe;

The water supply device 13 and the water pipe are controlled to supply coolant, which is then sprayed out from the nozzle 12 to cool the cutting part, thereby preventing the high temperature during cutting from damaging the tool and the workpiece, thereby improving the service life of the tool and the safety of the workpiece during operation. The barrier ring 9 is used to resist and collect the metal residue splashed by the workpiece during cutting, thereby preventing it from splashing into the interior of the device and splashing to injure the staff, reducing the work steps for cleaning the metal residue and ensuring the safety of the staff at work.

As shown in Figures 1 to 7, the interior of the barrier ring 9 is fixedly connected to the limiting ring 16, and a flow hole is opened inside the barrier ring 9 above the limiting ring 16. The flow hole is fixedly connected to the No. 2 pipe 11, and the recovery device 14 is fixedly connected to the No. 2 pipe 11 through a water pipe; the coolant flushes the cutting part, cools the cutting parts, and flushes down the metal residue, and then flows into the bottom of the barrier ring 9, and abuts against the limiting ring 16 above the fixing device 8 to block the coolant in the space below the workpiece at the top of the fixing device 8, and then the coolant drives the metal residue to flow into the No. 2 pipe 11 along the flow hole, and then flows into the recovery device 14 through the water pipe, thereby realizing the recovery of the coolant and metal residue, avoiding its influence on the cutting of the workpiece, reducing the working steps of cleaning the metal residue, and ensuring the environment during the cutting of the workpiece.

As shown in FIGS. 1 to 13 , the fixing assembly 18 includes a main spring bar 1801 fixedly connected to the outside of the fixing ring 17, a protruding bar 1802 is fixedly connected to the other side of the main spring bar 1801, an inner hole 1803 is provided inside the main spring bar 1801, a weakened groove 1804 is provided at the bottom of the protruding bar 1802, the fixing assembly 18 is annularly distributed outside the fixing ring 17, the main spring bar 1801 and the protruding bar 1802 are an integrated structure, a plurality of fixing cavities 21 adapted to the main spring bar 1801 are provided inside the No. 1 tube 10, and a plurality of protruding cavities 22 adapted to the protruding bar 1802 are provided outside the fixing cavity 21;

When it is necessary to clean the residue on the inner wall of the barrier ring 9, the hand holds the rear half of the nozzle 12 and applies force outward, so that the protruding cavity 22 squeezes the protruding strip 1802 to deform downward, and the protruding strip 1802 is weakened by the weakening groove 1804, so that the protruding strip 1802 is more likely to deform downward, reducing the force required to be applied and reducing the workload of the staff. Then all the protruding strips 1802 are separated from the protruding cavity 22, so that the nozzle 12 is unlocked, and then the fixed cavity 21 squeezes the protruding strip 1802 and the main elastic strip 180 1, make it close to the fixing ring 17, pull the nozzle 12 out of the No. 1 pipe 10, and then use the nozzle 12 to flush the inside of the barrier ring 9. The cooling liquid after flushing flows out from the No. 2 pipe 11, so that the device can clean itself without an external device, which reduces the working cost of the device and improves the practicality of the device. After flushing, the nozzle 12 is inserted back into the No. 1 pipe 10, so that the nozzle 12 returns to the locked state, so that the nozzle 12 can quickly switch between the two states to cope with different working requirements.

As shown in Figures 1 to 12, the clamping assembly 15 is used to fix the barrier ring 9 on the top of the fixing device 8, and the clamping assembly 15 is connected to the barrier ring 9; the clamping assembly 15 includes a fixing card 1501 fixedly connected to the bottom of the barrier ring 9, and both sides of the bottom end of the fixing card 1501 are fixedly connected with side spring pieces 1502, and the top ends of the two side spring pieces 1502 away from each other are fixedly connected with a clamping block 1503. There are two clamping assemblies 15, which are respectively located at the two ends of the bottom of the barrier ring 9, and fixed. A through hole is provided on the inner side of the card 1501, and the width of the fixed card 1501 gradually decreases from top to bottom. The bottom end of the fixed card 1501 is arc-shaped, and stress grooves are provided on the sides of the two side spring sheets 1502 close to each other. The sides of the two card blocks 1503 away from each other are arc-shaped, and both ends of the top of the fixing device 8 are provided with card connection cavities 19 adapted to the fixed card 1501. The card connection cavity 19 is located inside the mounting seat at the bottom end of the fixing device 8, and limiting cavities 20 adapted to the card blocks 1503 are provided on both sides of the card connection cavity 19.

When the barrier ring 9 needs to be replaced, the handle fixedly connected to the top thereof is used to apply force upward, so that the limiting cavity 20 squeezes the card block 1503 to move inward, and then squeezes the side spring piece 1502 to deform inward. Through the distribution of the stress grooves, the side spring piece 1502 is more likely to deform inward, thereby improving the working efficiency, so that the fixed card 1501 is disengaged from the card cavity 19, and the card assembly 15 is disengaged from the locked state, and then the barrier ring 9 is pulled out. After replacing the barrier ring 9, it is inserted into the In the card cavity 19, by gradually reducing the width of the fixed card 1501 and the arc design of the bottom, the card assembly 15 is easier to insert into the card cavity 19, which improves the accuracy of insertion and reduces the difficulty of work. When the card block 1503 slides to the position of the limit cavity 20, the side spring piece 1502 rebounds and pushes the card block 1503 to embed into the limit cavity 20 to complete the locking, so that the device can quickly disassemble and assemble the blocking ring 9, thereby improving the replaceability of the device accessories and increasing the practicality and service life of the device.

The working principle provided by the present invention is as follows: the workpiece is placed above the lifting component at the top of the fixing device 8, the blocking ring 9 is arranged above the mounting seat at the bottom of the fixing device 8, the lifting component is located inside the blocking ring 9, and the lifting component and the blocking ring 9 do not contact each other. The lifting component at the top of the fixing device 8 can fix the workpiece and drive the workpiece to rise and fall to a suitable cutting height, adjust the cutting position of the workpiece, and when the lifting component is raised and lowered, the blocking ring 9 will not move, and then control the cutting device 7, and drive the tool to descend to the inside of the blocking ring 9 through the moving component at the bottom of the cutting device 7, and meet the fixing device 8. The workpiece is in contact with the cutting tool, and the tool is driven by the moving part to perform longitudinal position fine-tuning, and the workpiece is cut by the tool. When the moving part is fine-tuning the cutting, the position of the top part of the cutting device 7 does not need to be moved; the water supply device 13 and the water pipe are controlled to supply coolant, and then it is sprayed from the nozzle 12 to cool the cutting part, and the metal residue splashed by the workpiece during cutting is blocked and collected through the barrier ring 9; the coolant flushes the cutting part, cools the cutting part, and flushes the metal residue down, and then flows into the bottom of the barrier ring 9, and blocks the coolant under the workpiece through the limit ring 16. , and then the coolant drives the metal residue to flow into the No. 2 pipe 11 along the flow hole, and then flows into the recovery device 14 through the water pipe; when it is necessary to clean the residue on the inner wall of the barrier ring 9, hold the rear half of the nozzle 12 and apply force outward, so that the raised cavity 22 squeezes the raised strip 1802 to deform downward, and all the raised strips 1802 are separated from the raised cavity 22, so that the nozzle 12 is unlocked, and the nozzle 12 is pulled out of the No. 1 pipe 10, and then the nozzle 12 is used to flush the inside of the barrier ring 9, and the flushed coolant flows out from the No. 2 pipe 11. After flushing, the nozzle 12 is inserted back into the No. 1 pipe. 10, so that the nozzle 12 returns to the locked state; when the blocking ring 9 needs to be replaced, the handle fixedly connected to the top thereof is used to apply force upward, so that the limiting cavity 20 squeezes the card block 1503 to move inward, and then squeezes the side spring piece 1502 to deform inward, so that the fixed card 1501 is disengaged from the card connection cavity 19, so that the card connection assembly 15 is disengaged from the locked state, and then the blocking ring 9 is pulled out. After replacing the blocking ring 9, it is inserted into the card connection cavities 19 on both sides. When the card block 1503 slides to the position of the limiting cavity 20, the side spring piece 1502 rebounds and pushes the card block 1503 to embed into the limiting cavity 20, thereby completing the locking.

The above moving device 5, moving frame 6, cutting device 7, fixing device 8, water supply device 13 and recovery device 14 are all disclosed in the prior art in the present invention and will not be described in detail here.

The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (10)

1. A metal cutting equipment, comprising a base (1), characterized in that a shell (3) is fixedly connected to the four sides of the top of the base (1), a moving device (5), a fixing device (8) and a moving frame (6) are fixedly connected to the top of the base (1) in sequence from left to right, a cutting device (7) is arranged on the outer side of the moving frame (6), a blocking ring (9) is clamped on the top of the fixing device (8), a No. 1 pipe (10) and a No. 2 pipe (11) are fixedly connected to the upper and lower ends of one side of the blocking ring (9), a nozzle (12) is arranged inside the No. 1 pipe (10), and a fixing ring (17) is fixedly connected to the outer side of the nozzle (12); A clamping assembly (15), the clamping assembly (15) being used to fix the barrier ring (9) on the top of the fixing device (8), the clamping assembly (15) being connected to the barrier ring (9); A fixing assembly (18), the fixing assembly (18) being used to fix the nozzle (12) inside the No. 1 pipe (10), the fixing assembly (18) being connected to the fixing ring (12). 2. A metal cutting equipment according to claim 1, characterized in that the clamping assembly (15) includes a fixing card (1501) fixedly connected to the bottom of the blocking ring (9), and both sides of the bottom end of the fixing card (1501) are fixedly connected with side spring pieces (1502), and the top ends of the two side spring pieces (1502) away from each other are fixedly connected with a clamping block (1503). 3. A metal cutting equipment according to claim 2, characterized in that the number of the clamping components (15) is two, which are respectively located at the two ends of the bottom of the blocking ring (9), a through hole is opened on the inner side of the fixing card (1501), the width of the fixing card (1501) gradually decreases from top to bottom, the bottom end of the fixing card (1501) is arc-shaped, the two side spring sheets (1502) close to each other are each provided with a stress groove, and the two card blocks (1503) away from each other are arc-shaped. 4. A metal cutting equipment according to claim 3, characterized in that both ends of the top of the fixing device (8) are provided with a clamping cavity (19) adapted to the fixing card (1501), and both sides of the clamping cavity (19) are provided with a limiting cavity (20) adapted to the clamping block (1503). 5. A metal cutting equipment according to claim 1, characterized in that the fixing assembly (18) comprises a main elastic strip (1801) fixedly connected to the outside of the fixing ring (17), a raised strip (1802) is fixedly connected to the other side of the main elastic strip (1801), an inner hole (1803) is provided inside the main elastic strip (1801), and a weakened groove (1804) is provided at the bottom of the raised strip (1802). 6. A metal cutting equipment according to claim 5, characterized in that the fixing assembly (18) is distributed in an annular shape outside the fixing ring (17), and the main elastic strip (1801) and the raised strip (1802) are an integrated structure. 7. A metal cutting equipment according to claim 5, characterized in that a plurality of fixed cavities (21) adapted to the main elastic strip (1801) are opened on the inner side of the No. 1 tube (10), and a plurality of raised cavities (22) adapted to the raised strip (1802) are opened on the outer side of the fixed cavity (21). 8. A metal cutting equipment according to claim 1, characterized in that the interior of the barrier ring (9) is fixedly connected to the limiting ring (16), and a flow hole is opened inside the barrier ring (9) above the limiting ring (16), and the flow hole is fixedly connected to the No. 2 pipe (11). 9. A metal cutting equipment according to claim 1, characterized in that an end of the top of the base (1) away from the fixing device (8) is fixedly connected with a water supply device (13) and a recovery device (14) in sequence from left to right, wherein the water supply device (13) is fixedly connected to the nozzle (12) through a water pipe, and the recovery device (14) is fixedly connected to the No. 2 pipe (11) through a water pipe. 10. A metal cutting equipment according to claim 1, characterized in that the bottom of the base (1) is fixedly connected to a support seat (2), the outer side of the shell (3) is fixedly connected to a control board (4), and one end of the moving frame (6) is connected to a fixing device (8).