A workpiece cutting device for fire hydrant production

Abstract

The present invention relates to the field of fire protection technology, and discloses a workpiece cutting equipment for fire hydrant production, including a workbench and a fire hydrant pipe, wherein a cutting knife and a second telescopic cylinder are provided on the workbench, the fire hydrant pipe is located below the cutting knife, and a stabilizing component is provided on the second telescopic cylinder, wherein the stabilizing component includes a first clamping frame and a second clamping frame, and when the cutting knife cuts the fire hydrant pipe, the first clamping frame will drive the second clamping frame to move up when it moves downward, and the first clamping frame will cooperate with the second clamping frame to fix the cutting position of the fire hydrant pipe to prevent the fire hydrant pipe from shaking when being cut. In the present invention, the first clamping frame and the second clamping frame can clamp both sides of the pipe cutting position during cutting through the transmission cooperation of the second telescopic cylinder, the gear column and the rotating gear to prevent the pipe from shaking during cutting and ensure the stability of the cutting position.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, in particular to a workpiece cutting device for producing fire hydrants. Background Art

[0002] A fire hydrant is a fixed fire-fighting facility. Its main function is to control combustible materials, isolate combustion-supporting materials, and eliminate fire sources. Fire hydrants are mainly used for fire trucks to draw water from municipal water sources or outdoor fire water sources to extinguish fires. They can also be directly connected to water hoses and water guns to discharge water for fire extinguishing. Fire hydrant pipes are pipes connected to fire hydrants. When installing fire hydrants, the fire hydrant pipes need to be cut so that the fire hydrant pipes can be connected to the fire hydrants.

[0003] When cutting fire hydrant pipes, the fire pipes are generally simply fixed, and the section of fire hydrant pipe being cut is usually not clamped. This makes the pipe easy to shake during the cutting process of the cutting machine, which not only affects the cutting accuracy of the fire hydrant pipe and reduces the quality of the product, but also may cause the cutting tool to get stuck in the fire hydrant pipe, increasing maintenance costs and production time. Summary of the Invention

[0004] The object of the present invention is to provide a workpiece cutting device for fire hydrant production to solve the problems raised in the above background technology.

[0005] Technical Solution

[0006] The present invention provides the following technical solution: a workpiece cutting device for fire hydrant production, comprising a workbench and a fire hydrant pipe, a cutting knife and a second telescopic cylinder being provided on the workbench, the fire hydrant pipe being located below the cutting knife, and a stabilizing component being provided on the second telescopic cylinder, the stabilizing component comprising a first clamping frame and a second clamping frame, when the cutting knife cuts the fire hydrant pipe, the first clamping frame will drive the second clamping frame to move upward when it moves downward, and the first clamping frame will cooperate with the second clamping frame to fix the cutting position of the fire hydrant pipe to prevent the fire hydrant pipe from shaking when being cut.

[0007] Preferably, a second motor is provided on the workbench, a first screw is provided on the output shaft of the second motor, a clamping platform is provided on the first screw, and the clamping platform clamps and fixes the end of the fire hydrant pipe.

[0008] Preferably, a first motor and a second lead screw are provided in the clamping platform, the first motor and the second lead screw are meshed and connected via a bevel gear assembly, and a clamping block is provided on the second lead screw.

[0009] Preferably, the workbench is further provided with a transverse plate and a movable plate, the transverse plate is provided with a first telescopic cylinder and a fixed plate, the first telescopic cylinder is fixedly connected to the cutting knife, and the cutting knife is located between two adjacent first clamping frames.

[0010] Preferably, a first connecting rod is provided at the output shaft end of the second telescopic cylinder, a first gear column and a push rod are provided on the first connecting rod, and the first gear column is fixedly connected to the first clamping frame.

[0011] Preferably, the second clamping frame is located on the movable plate, and a second gear column is provided on the side of the second clamping frame, and a rotating gear is provided on the fixed plate. The first gear column and the second gear column are both meshed and connected with the rotating gear, and the first gear column and the second gear column are rotationally symmetrical about the rotating gear.

[0012] Preferably, the movable plate is further provided with a collection frame, the collection frame is provided with a movable rod and an air pump, the movable rod is provided with a first extrusion spring and a second connecting channel, and the air outlet of the air pump is connected to the second connecting channel.

[0013] Preferably, the first clamping frame and the second clamping frame are symmetrically distributed with each other, a connecting channel is provided between the second clamping frame and the first clamping frame, a first connecting channel is opened through the side of the second clamping frame, and the first connecting channel and the second connecting channel are connected with each other.

[0014] Preferably, partitions are provided in the second clamping frame, a piston plate is provided between every two partitions, a support rod and a second extrusion spring are provided on both sides of the piston plate, and a ventilation channel is provided between the chambers on both sides of each partition.

[0015] Preferably, the support rod passes through the second clamping frame and is provided with a mounting plate, and clamping rollers are provided on the mounting plate at equal intervals.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention provides a workpiece cutting device for fire hydrant production, which has the following beneficial effects:

[0018] 1. In the present invention, the first clamping frame and the second clamping frame cooperate with each other through the transmission of the second telescopic cylinder, the gear column and the rotating gear, which can clamp the two sides of the pipe cutting position during cutting, prevent the pipe from shaking during cutting, and ensure the stability of the cutting position. In addition, the stabilizing component can adjust the position of the clamping block according to the diameter of the pipe, and is suitable for fire hydrant pipes of different diameters.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a front view of the overall structure of the present invention;

[0023] Figure 2 It is a rear view of the overall structure of the present invention;

[0024] Figure 3 This is a diagram showing the position movement of the clamping table of the present invention;

[0025] Figure 4 This is a diagram of the clamping platform of the present invention clamping a fire hydrant pipe;

[0026] Figure 5 This is a schematic diagram of the rear side of the first clamping frame and the second clamping frame of the present invention;

[0027] Figure 6 This is a diagram showing the connection between the first gear column and the second gear column of the present invention;

[0028] Figure 7 This is a schematic diagram of the cutting blade of the present invention;

[0029] Figure 8 This is a partial schematic diagram of the upper portion of the movable plate of the present invention;

[0030] Figure 9 This is a schematic diagram of the connection between the first connecting channel and the second connecting channel of the present invention;

[0031] Figure 10 This is a connection diagram of the first clamping frame and the second clamping frame of the present invention;

[0032] Figure 11 This is an internal diagram of the second clamping frame of the present invention.

[0033] Description of reference numerals:

[0034] In the figure: 1. workbench; 2. horizontal plate; 3. clamping table; 4. first telescopic cylinder; 5. cutting knife; 6. fixed plate; 7. first clamping frame; 8. second clamping frame; 9. fire hydrant pipe; 10. second telescopic cylinder; 11. first connecting rod; 12. first gear column; 13. second gear column; 14. moving plate; 15. first screw; 16. first motor; 17. second screw; 18. clamping block; 19. pushing rod; 20. moving rod; 21. air pump; 22. mounting plate; 23. rotating gear; 24. first extrusion spring; 25. first connecting channel; 26. second connecting channel; 27. clamping roller; 28. partition; 29. ​​piston plate; 30. support rod; 31. second extrusion spring; 32. ventilation channel; 33. collecting frame. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example:

[0037] See also Figures 1-11 The present invention provides a technical solution: a workpiece cutting device for fire hydrant production, comprising a workbench 1 and a fire hydrant pipe 9, a cutting knife 5 and a second telescopic cylinder 10 are movably installed on the workbench 1, the second telescopic cylinder 10 is fixedly installed below the horizontal plate 2, the first telescopic cylinder 4 and the second telescopic cylinder 10 are distributed side by side, the fire hydrant pipe 9 is located below the cutting knife 5, and a stabilizing component is provided on the second telescopic cylinder 10, which includes a first clamping frame 7 and a second clamping frame 8. When the cutting knife 5 cuts the fire hydrant pipe 9, the first clamping frame 7 moves downward and drives the second clamping frame 8 to move upward. The first clamping frame 7 cooperates with the second clamping frame 8 to fix the cutting position of the fire hydrant pipe 9 to prevent the fire hydrant pipe 9 from shaking when being cut.

[0038] In this embodiment, a second motor is fixedly mounted on the workbench 1, a first lead screw 15 is fixedly mounted on the output shaft of the second motor, a clamping platform 3 is threadedly connected to the first lead screw 15, and a stabilizing bar is provided on the workbench 1 to ensure that the clamping platform 3 can be driven by the first lead screw 15. The clamping platform 3 can show stable lateral movement to prevent the clamping platform 3 from deviating from the direction when moving, and the clamping platform 3 clamps and fixes the end of the fire hydrant pipe 9.

[0039] In this embodiment, a first motor 16 is fixedly mounted on the clamping platform 3, and a second lead screw 17 is movably mounted inside the clamping platform 3. The first motor 16 and the second lead screw 17 are meshed and connected via a bevel gear assembly. A clamping block 18 is threadedly connected to the outer side of the second lead screw 17, and multiple clamping blocks 18 are distributed on the same side of the clamping platform 3.

[0040] When the fire hydrant pipe 9 is located in the clamping direction of the clamping table 3, the first motor 16 will drive the second screw 17 to rotate through the bevel gear assembly. The bevel gear assembly includes two bevel gears, which are respectively fixedly mounted on the first motor 16 and the end of the second screw 17. In this way, when the second screw 17 rotates, it will drive the clamping block 18 to clamp and fix the fire hydrant pipe 9, making it easier for the fire hydrant pipe 9 to be cut on the workbench 1.

[0041] The cutting blade 5 is driven by the first telescopic cylinder 4 and is located between two adjacent first clamping frames 7. It can cut the fire hydrant pipe 9 into two sections at one time without the need for secondary cutting, thereby ensuring the integrity of the cutting surface of the fire hydrant pipe 9 and improving the cutting efficiency and quality.

[0042] According to the diameter of the fire hydrant pipe 9, the moving distance of the clamping block 18 on the clamping platform 3 is variable, so that the clamping platform 3 can clamp fire hydrant pipes 9 of different diameters, increasing the applicability of the fire production workpiece cutting device.

[0043] In this embodiment, a horizontal plate 2 is fixedly installed on the workbench 1, and a movable plate 14 is movably installed. The bottom ends of the horizontal plate 2 are respectively fixedly installed with a first telescopic cylinder 4 and a fixed plate 6. The telescopic end of the first telescopic cylinder 4 is fixedly connected to the cutting knife 5. A cutting motor is provided on the cutting knife 5. The cutting motor provides power for the cutting knife 5. The cutting knife 5 is located between two adjacent first clamping frames 7. When cutting the fire hydrant pipe 9, the cutting knife 5 can cut the fire hydrant pipe 9 into two sections at one time. There is no need for secondary cutting, thereby ensuring the integrity of the cutting surface of the fire hydrant pipe 9.

[0044] In this embodiment, the output shaft end of the second telescopic cylinder 10 is fixedly mounted with a first connecting rod 11, and the first connecting rod 11 is respectively fixedly mounted with a first gear column 12 and a push rod 19. The first gear column 12 is fixedly mounted on the outer side of the first clamping frame 7. The push rod 19 is located at the bottom end of the first connecting rod 11, and the shape of the push rod 19 is basically T-shaped. The push rod 19 does not contact the first gear column 12 or the second gear column 13.

[0045] In this embodiment, the second clamping frame 8 is fixedly mounted on the movable plate 14, and a second gear column 13 is provided on the side of the second clamping frame 8. A rotating gear 23 is movably mounted on the fixed plate 6. The first gear column 12 and the second gear column 13 are both meshed and connected with the rotating gear 23, and the first gear column 12 and the second gear column 13 are rotationally symmetrical about the rotating gear 23. When the second telescopic cylinder 10 moves downward, the first gear column 12 will be driven downward through the first connecting rod 11. When the first gear column 12 moves downward, it will drive the first clamping frame 7 to move downward together. When the first gear column 12 moves downward, it will drive the second gear column 13 to move upward through the rotating gear 23. In this way, the second clamping frame 8 will move upward, and cooperate with the first clamping frame 7 to clamp both sides of the cutting position of the fire hydrant pipe 9 to ensure the stability of the cutting position of the fire hydrant pipe 9.

[0046] In this embodiment, a collecting frame 33 is also fixedly installed on the movable plate 14, and a collecting groove is provided on the upper surface of the collecting frame 33. The collecting groove is located below the cutting knife 5. The cutting groove is used to collect the waste generated when the cutting knife 5 cuts the fire hydrant pipe 9 to prevent the waste generated when the fire hydrant pipe 9 is cut from splashing. A movable rod 20 is movably installed in the collecting frame 33, and an air pump 21 is fixedly installed in the collecting frame 33 by bolts. A first extrusion spring 24 and a second connecting channel 26 are fixedly installed above the movable rod 20, and a vertical rod is movably installed inside the movable rod 20. The first extrusion spring 2 4 is set on the vertical rod, and the air outlet of the air pump 21 is connected with the second connecting channel 26. Before the cutting knife 5 cuts the fire hydrant pipe 9, that is, when the first connecting rod 11 is not moved downward, the air outlet of the air pump 21 is in contact with the moving rod 20. At this time, the second connecting channel 26 is not connected with the air outlet of the air pump 21. After the first connecting rod 11 moves downward, the pushing rod 19 will contact the moving rod 20 and continue to drive the moving rod 20 to move downward, which will cause the first extrusion spring 24 to stretch. At the same time, the downward movement of the moving rod 20 will drive the second connecting channel 26 to move downward and be connected with the air outlet of the air pump 21.

[0047] In this embodiment, the first clamping frame 7 and the second clamping frame 8 are symmetrically distributed with each other, and the shape and size of the first clamping frame 7 and the second clamping frame 8 are the same. A connecting channel is provided between the second clamping frame 8 and the first clamping frame 7. When gas enters the second clamping frame 8, it will enter the first clamping frame 7 through the connecting channel. A first connecting channel 25 is opened through the side of the second clamping frame 8. The first connecting channel 25 and the second connecting channel 26 are connected to each other. When the air outlet of the air pump 21, the second connecting channel 26 and the first connecting channel 25 are located in the same plane, the gas generated by the air pump 21 will enter the second clamping frame 8.

[0048] In this embodiment, partitions 28 are fixedly installed at equal intervals in the second clamping frame 8, and a piston plate 29 is arranged between every two partitions 28. The side edges of the piston plate 29 are in sliding contact with the partitions 28 and the inner wall of the second clamping frame 8. The gas on both sides of the piston plate 29 does not circulate. Support rods 30 and second extrusion springs 31 are fixedly installed on both sides of the piston plate 29, and a ventilation channel 32 is opened between the chambers on both sides of each partition 28.

[0049] In this embodiment, the other end of the support rod 30 passes through the inner wall of the second clamping frame 8 and is fixedly installed with a mounting plate 22. Clamping rollers 27 are fixedly installed at equal intervals on the mounting plate 22. The mounting plate 22 can be bent within a certain range, so that the mounting plate 22 can drive the clamping rollers 27 to clamp and fix fire hydrant pipes 9 of different diameters. At the same time, the surface of the clamping rollers 27 is provided with anti-slip grooves to prevent the fire hydrant pipes 9 from sliding when the clamping rollers 27 clamp the fire hydrant pipes 9.

[0050] The partition 28, piston plate 29, support rod 30, second extrusion spring 31, flexible mounting plate 22 and clamping roller 27 with anti-slip grooves in the first clamping frame 7 and the second clamping frame 8 cooperate with each other to provide a more fitting and stable clamping and fixation of fire hydrant pipes 9 of different diameters, further enhancing the adaptability of the equipment to pipes of different specifications.

[0051] A contactor is provided between the first clamping frame 7 and the second clamping frame 8. When the contactor is activated, the first telescopic cylinder 4 starts to work. The contactor adopts mature technology in the existing market.

[0052] A contactor is set between the first clamping frame 7 and the second clamping frame 8. Only when the first clamping frame 7 contacts and activates the contactor, the first telescopic cylinder 4 will drive the cutting knife 5 to work, ensuring that the fire hydrant pipe 9 has been firmly fixed before cutting; after the first clamping frame 7 moves down and is about to contact with the second clamping frame 8, the pushing rod 19 will first contact with the moving rod 20, and in the continuous downward movement of the first clamping frame 7, the pushing rod 19 will drive the moving rod 20 to move down. At the same time, the first extrusion spring 24 will be stretched during the downward movement of the moving rod 20, and the downward movement of the moving rod 20 will also drive the second connecting channel 26 to move down together. When the first clamping frame 7 and the second clamping frame 8 contact each other, the pushing rod 19 stops moving down, and the second connecting channel 26 on the moving rod 20 will be connected to the first connecting channel 25 and the air outlet of the air pump 21, and are in the same straight line plane. The valve of the air pump 21 is opened. In this way, the gas in the air pump 21 will enter the second clamping frame 8 and the first clamping frame 7, and the gas in the air pump 21 will fill the chambers in the first clamping frame 7 and the second clamping frame 8, and the piston plate 29 is in an active state in the clamping frame, which is connected to the inside of the clamping frame by the second extrusion spring 31. The continuous entry of gas into the clamping frame will push the piston plate 29 to move in the chamber of the clamping frame, and the movement of the piston plate 29 will drive the mounting plate 22 and the clamping roller 27 to clamp the fire hydrant pipe 9. The continued movement of the two ends of the mounting plate 22 on the piston plate 29 will drive the clamping rollers 27 at its ends to approach the fire hydrant pipe 9 together, so that the clamping rollers 27 on the mounting plate 22 are all attached to the outer wall of the fire hydrant pipe 9, completing the clamping of the fire hydrant pipe 9, and the anti-slip grooves on the clamping roller 27 will ensure that the clamping roller 27 will not deviate when in contact with the fire hydrant pipe 9, and at the same time prevent the fire hydrant pipe 9 from moving when it is clamped and fixed again.

[0053] The working principle of this embodiment is as follows: when in use, the fire hydrant pipe 9 to be cut is placed on the clamping table 3, and the second screw 17 is driven to rotate by the first motor 16. When the second screw 17 rotates, it will drive the clamping block 18 to clamp and fix one end of the fire hydrant pipe 9. The clamping table 3 can be driven to move to the other side by the second motor and the first screw 15, and the other end of the fire hydrant pipe 9 can be clamped. In this way, the fire hydrant pipe 9 will be initially fixed on the workbench 1 by the two clamping tables 3, and the first screw 15 drives the clamping table 3 to move, so as to achieve the adjustable cutting length of the fire hydrant pipe 9.

[0054] When the first connecting rod 11 moves downward, the first tooth column 12 and the pushing rod 19 will move downward together. When the first tooth column 12 moves downward, the first clamping frame 7 will be driven downward together, and when the first tooth column 12 moves downward, the second tooth column 13 will be driven upward by the rotating gear 23. In this way, when the second tooth column 13 moves upward, the second clamping frame 8 will be driven upward and the moving plate 14 will be driven upward. As the pushing rod 19 moves downward and the moving plate 14 moves upward synchronously, the pushing rod 19 will contact the moving rod 20 and drive the moving rod 20 to move downward. When the moving rod 20 moves downward in the collecting frame 33, the first extrusion spring 24 will be stretched. At the same time, the moving rod 20 will drive the second connecting channel 26 to move downward together until the first clamping frame 7 and the second clamping frame 8 are in contact with each other. The channel 26 and the first connecting channel 25 are in the same plane, so that the gas generated by the air pump 21 will enter the second clamping frame 8 through the second connecting channel 26 and the first connecting channel 25. When the gas generated by the air pump 21 enters the second clamping frame 8, it will also enter the first clamping frame 7 through the connecting channel. The gas entering the two clamping frames will cause the piston plate 29 to move toward the side of the fire hydrant pipe 9. When the piston plate 29 moves, it will drive the second extrusion spring 31 to stretch. At the same time, the piston plate 29 will also drive the mounting plate 22 to approach the fire hydrant pipe 9 through the support rod 30. The mounting plate 22 will drive the clamping roller 27 to clamp the outside of the fire hydrant pipe 9. Since the mounting plate 22 is flexible, the mounting plate 22 and the clamping roller 27 cooperate with each other to clamp and fix fire hydrant pipes 9 of different diameters, ensuring that the two sides of the cutting position of the fire hydrant pipe 9 will not shake, preventing the cutting knife 5 from being stuck.

[0055] The first telescopic cylinder 4 then drives the cutting blade 5 to cut the fire hydrant pipe 9 .

[0056] The collecting trough on the collecting frame 33 can collect the waste generated when the fire hydrant pipe 9 is cut to prevent the waste from splashing.

[0057] The push rod 19 moves downward along with the downward movement of the first clamping frame 7. When the first clamping frame 7 and the second clamping frame 8 are connected to each other, the push rod 19 will open the valve leading to the air pump 21 through the moving rod 20, so that the first clamping frame 7 and the second clamping frame 8 clamp and fix the fire hydrant pipe 9. When the first clamping frame 7 and the second clamping frame 8 are not in contact, the valve of the air pump 21 will not be opened, which can reduce resource waste.

[0058] On the contrary, when the fire hydrant pipe 9 is cut, the first telescopic cylinder 4 first drives the cutting knife 5 back to its original position, and the second telescopic cylinder 10 then works and drives the first clamping frame 7 to separate from the second clamping frame 8. At the same time, the upward movement of the push rod 19 will cause the moving rod 20 to move upward at the same time, and the air pump 21 will be blocked by the moving rod 20, and the gas of the air pump 21 will not enter the second clamping frame 8.

[0059] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A workpiece cutting device for fire hydrant production, comprising a workbench and a fire hydrant pipe, characterized in that: The workbench is provided with a cutting knife and a second telescopic cylinder, the fire hydrant pipe is located below the cutting knife, and a stabilizing assembly is provided on the second telescopic cylinder. The stabilizing assembly includes a first clamping frame and a second clamping frame. When the cutting knife cuts the fire hydrant pipe, the first clamping frame moves downward to drive the second clamping frame to move upward. The first clamping frame cooperates with the second clamping frame to fix the cutting position of the fire hydrant pipe, thereby preventing the fire hydrant pipe from shaking when being cut. The workbench is further provided with a transverse plate and a movable plate, the transverse plate is provided with a first telescopic cylinder and a fixed plate, the first telescopic cylinder is fixedly connected to the cutting knife, and the cutting knife is located between two adjacent first clamping frames; A first connecting rod is provided at the output shaft end of the second telescopic cylinder, and a first gear column and a push rod are provided on the first connecting rod. The first gear column is fixedly connected to the first clamping frame. The push rod is located at the bottom end of the first connecting rod and has a substantially T-shaped shape. The push rod does not contact the first gear column and the second gear column. The second clamping frame is located on the movable plate, and a second gear column is provided on the side of the second clamping frame. The fixed plate is provided with a rotating gear. The first gear column and the second gear column are both meshed and connected with the rotating gear, and the first gear column and the second gear column are rotationally symmetrical about the rotating gear. The movable plate is further provided with a collection frame, the collection frame is provided with a movable rod and an air pump, the movable rod is provided with a first extrusion spring and a second connecting channel, and the air outlet of the air pump is connected to the second connecting channel; When the first connecting rod is not moved downward, the air outlet of the air pump contacts the moving rod, and the second connecting channel is not connected to the air outlet of the air pump. After the first connecting rod is moved downward, the push rod contacts the moving rod, driving the moving rod to move downward, causing the first extrusion spring to stretch. At the same time, the downward movement of the moving rod drives the second connecting channel to move downward and connect with the air outlet of the air pump. The first clamping frame and the second clamping frame are symmetrically distributed with each other, a communication channel is provided between the second clamping frame and the first clamping frame, a first connection channel is opened through the side of the second clamping frame, and the first connection channel and the second connection channel are connected with each other; The second clamping frame is provided with a partition, a piston plate is provided between each two partitions, a support rod and a second extrusion spring are provided on both sides of the piston plate, and a ventilation channel is provided between the chambers on both sides of each partition; The support rod passes through the second clamping frame and is provided with a mounting plate, and clamping rollers are provided on the mounting plate at equal intervals.

2. The workpiece cutting equipment for fire hydrant production according to claim 1, characterized in that: The workbench is provided with a second motor, the output shaft of the second motor is provided with a first screw, the first screw is provided with a clamping platform, and the clamping platform clamps and fixes the end of the fire hydrant pipe.

3. The workpiece cutting equipment for fire hydrant production according to claim 2, characterized in that: The clamping platform is provided with a first motor and a second lead screw, the first motor and the second lead screw are meshed and connected via a bevel gear assembly, and the second lead screw is provided with a clamping block.

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