Workpiece cutting equipment for fire hydrant production

Abstract

The invention relates to the technical field of fire fighting, and discloses fire hydrant production workpiece cutting equipment which comprises a workbench and a fire hydrant pipeline, a cutting knife and a second telescopic air cylinder are arranged on the workbench, the fire hydrant pipeline is located below the cutting knife, and a stabilizing assembly is arranged on the second telescopic air cylinder. The stabilizing assembly comprises a first clamping frame and a second clamping frame, when the cutting knife cuts the fire hydrant pipeline, the first clamping frame moves downwards to drive the second clamping frame to move upwards, and the first clamping frame and the second clamping frame cooperate with each other to fix the cutting position of the fire hydrant pipeline; according to the fire hydrant pipeline cutting device, a first clamping frame and a second clamping frame can clamp the two sides of the cutting position of the pipeline during cutting through transmission cooperation of a second telescopic air cylinder, a tooth column and a rotating gear, the pipeline is prevented from shaking during cutting, and the stability of the cutting position is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection, and specifically to a workpiece cutting device for the production of fire hydrants. Background Art

[0002] A fire hydrant is a fixed fire protection facility, and its main functions are to control combustibles, isolate combustion-supporting substances, and eliminate ignition sources. Fire hydrants are mainly used for fire trucks to draw water from municipal water supply networks or outdoor fire water supply networks to implement fire extinguishing, and can also be directly connected to hoses and water guns to discharge water for fire extinguishing. The fire hydrant pipeline is the pipeline connected to the fire hydrant. When installing a fire hydrant, it is necessary to cut the fire hydrant pipeline so that the fire hydrant pipeline can be connected to the fire hydrant.

[0003] When cutting the fire hydrant pipeline, the fire pipeline is generally simply fixed, and the section of the fire hydrant pipeline to be cut is usually not clamped. This causes the pipeline to easily shake during the cutting process by the cutting machine. This not only affects the cutting accuracy of the fire hydrant pipeline, reduces the product quality, but also may cause the cutting tool to get stuck in the fire hydrant pipeline, increasing the maintenance cost and production time. Summary of the Invention

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

[0005] Technical Solution The present invention provides the following technical solution: A workpiece cutting device for the production of fire hydrants includes a workbench and a fire hydrant pipeline. A cutting tool and a second telescopic cylinder are arranged on the workbench. The fire hydrant pipeline is located below the cutting tool. A stabilizing component is arranged on the second telescopic cylinder. The stabilizing component includes a first clamping frame and a second clamping frame. When the cutting tool cuts the fire hydrant pipeline, when the first clamping frame moves downward, it will drive the second clamping frame to move upward. The first clamping frame and the second clamping frame cooperate with each other to fix the cutting position of the fire hydrant pipeline to prevent the fire hydrant pipeline from shaking during cutting.

[0006] Preferably, a second motor is arranged on the workbench. A first lead screw is arranged on the output shaft of the second motor. A clamping table is arranged on the first lead screw. The clamping table clamps and fixes the end of the fire hydrant pipeline.

[0007] Preferably, a first motor and a second lead screw are arranged in the clamping table. The first motor and the second lead screw are meshed and connected through a bevel gear assembly. A clamping block is arranged on the second lead screw.

[0008] Preferably, a cross plate and a moving plate are further arranged on the workbench. A first telescopic cylinder and a fixing plate are arranged on the cross plate. The first telescopic cylinder is fixedly connected with the cutting tool, and the cutting tool is located between two adjacent first clamping frames.

[0009] Preferably, a first connecting rod is arranged at the output shaft end of the second telescopic cylinder. A first tooth column and a pushing rod are arranged on the first connecting rod, and the first tooth column is fixedly connected with the first clamping frame.

[0010] Preferably, the second clamping frame is located on the moving plate, and a second tooth column is arranged on the side of the second clamping frame. A rotating gear is arranged on the fixing plate. The first tooth column and the second tooth column are both meshed with the rotating gear, and the first tooth column and the second tooth column are rotationally symmetric about the rotating gear.

[0011] Preferably, a collecting box is further arranged on the moving plate. A moving rod and an air pump are arranged in the collecting box. A first compression spring and a second connecting channel are arranged on the moving rod, and the air outlet of the air pump is communicated with the second connecting channel.

[0012] Preferably, the first clamping frame and the second clamping frame are symmetrically distributed with each other. A communication channel is arranged between the second clamping frame and the first clamping frame. A first connecting channel is penetrated and opened on the side of the second clamping frame, and the first connecting channel is communicated with the second connecting channel.

[0013] Preferably, a partition plate is arranged in the second clamping frame. A piston plate is arranged between every two partition plates. A support rod and a second compression spring are respectively arranged on both sides of the piston plate. A ventilation channel is arranged between the chambers on both sides of each partition plate.

[0014] Preferably, the support rod penetrates through the second clamping frame and an installation plate is arranged. Clamping rollers are arranged on the installation plate at equal intervals.

[0015] Advantageous Effects Compared with the prior art, the present invention provides a workpiece cutting device for fire hydrant production, and has the following advantageous effects: 1. In the present invention, the first clamping frame and the second clamping frame can clamp both sides of the cutting position of the pipeline during cutting through the transmission cooperation of the second telescopic cylinder, the tooth column and the rotating gear, prevent the pipeline from shaking during cutting, ensure the stability of the cutting position, and the stable component can adjust the position of the clamping block according to the diameter of the pipeline, so as to be applicable to fire hydrant pipelines with different diameters.

[0016] And it should be understood that the foregoing general description and the following detailed description are both exemplary and explanatory and are not intended to limit the present disclosure. This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Front view of the overall structure of the present invention; Figure 2 Rear view of the overall structure of the present invention; Figure 3 Position movement diagram of the clamping table of the present invention; Figure 4 Clamping diagram of the fire hydrant pipe by the clamping table of the present invention; Figure 5 Schematic diagram of the rear side of the first clamping frame and the second clamping frame of the present invention; Figure 6 Connection diagram of the first tooth column and the second tooth column of the present invention; Figure 7 Cutting schematic diagram of the cutting tool of the present invention; Figure 8 Partial schematic diagram above the moving plate of the present invention; Figure 9 Connection schematic diagram of the first connection channel and the second connection channel of the present invention; Figure 10 Connection diagram of the first clamping frame and the second clamping frame of the present invention; Figure 11 Internal diagram of the second clamping frame of the present invention.

[0019] Explanation of reference numerals in the drawings: In the figure: 1, workbench; 2, cross plate; 3, clamping table; 4, first telescopic cylinder; 5, cutting tool; 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 tooth column; 13, second tooth column; 14, moving plate; 15, first lead screw; 16, first motor; 17, second lead screw; 18, clamping block; 19, push rod; 20, moving rod; 21, air pump; 22, mounting plate; 23, rotating gear; 24, first compression spring; 25, first connection channel; 26, second connection channel; 27, clamping roller; 28, partition plate; 29, piston plate; 30, support rod; 31, second compression spring; 32, ventilation channel; 33, collection box. Detailed Description of the Invention

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: Please refer to Figures 1-11 , the present invention provides a technical solution: a workpiece cutting device for fire hydrant production, including a workbench 1 and a fire hydrant pipe 9. A cutting tool 5 and a second telescopic cylinder 10 are movably installed on the workbench 1. The second telescopic cylinder 10 is fixedly installed below the cross plate 2. The first telescopic cylinder 4 and the second telescopic cylinder 10 are arranged side by side. The fire hydrant pipe 9 is located below the cutting tool 5. A stabilizing component is provided on the second telescopic cylinder 10. The stabilizing component includes a first clamping frame 7 and a second clamping frame 8. When the cutting tool 5 cuts the fire hydrant pipe 9, when the first clamping frame 7 moves downward, it will drive the second clamping frame 8 to move upward. The first clamping frame 7 and the second clamping frame 8 cooperate with each other to fix the cutting position of the fire hydrant pipe 9 and prevent the fire hydrant pipe 9 from shaking when being cut.

[0022] In this embodiment, a second motor is fixedly installed on the workbench 1. A first lead screw 15 is fixedly installed on the output shaft of the second motor. A clamping table 3 is threadedly connected to the first lead screw 15. Moreover, a stabilizing rod is provided on the workbench 1 to ensure that the clamping table 3 can move stably horizontally driven by the first lead screw 15 and prevent the clamping table 3 from deviating when moving. The clamping table 3 clamps and fixes the end of the fire hydrant pipe 9.

[0023] In this embodiment, a first motor 16 is fixedly installed on the clamping table 3, and a second lead screw 17 is movably installed inside the clamping table 3. The first motor 16 and the second lead screw 17 are meshed and connected through a bevel gear assembly. A clamping block 18 is threadedly connected to the outside of the second lead screw 17. Multiple clamping blocks 18 are distributed on the same side of the clamping table 3.

[0024] When the fire hydrant pipe 9 is in the clamping direction of the clamping table 3, the first motor 16 will drive the second lead screw 17 to rotate through the bevel gear assembly. The bevel gear assembly includes two bevel gears, which are respectively fixedly installed on the first motor 16 and the end of the second lead screw 17. In this way, when the second lead screw 17 rotates, it will drive the clamping block 18 to clamp and fix the fire hydrant pipe 9, facilitating the cutting work of the fire hydrant pipe 9 on the workbench 1.

[0025] The cutting tool 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 secondary cutting, ensuring the integrity of the cutting surface of the fire hydrant pipe 9 and improving the cutting efficiency and quality.

[0026] According to the diameter of the fire hydrant pipe 9, the moving distance of the clamping block 18 on the clamping table 3 is variable, so that the clamping table 3 can clamp fire hydrant pipes 9 with different diameters, increasing the wide applicability of the cutting device for fire production workpieces.

[0027] In this embodiment, a cross plate 2 is fixedly installed on the workbench 1, and a moving plate 14 is movably installed. At the bottom end of the cross plate 2, a first telescopic cylinder 4 and a fixing plate 6 are respectively fixedly installed. The telescopic end of the first telescopic cylinder 4 is fixedly connected to the cutting tool 5. A cutting motor is provided on the cutting tool 5, and the cutting motor provides power for the operation of the cutting tool 5. The cutting tool 5 is located between two adjacent first clamping frames 7. When cutting the fire hydrant pipe 9, the cutting tool 5 can cut the fire hydrant pipe 9 into two sections at one time without secondary cutting, ensuring the integrity of the cutting surface of the fire hydrant pipe 9.

[0028] In this embodiment, a first connecting rod 11 is fixedly installed at the output shaft end of the second telescopic cylinder 10. The first connecting rod 11 is respectively fixedly installed with a first tooth column 12 and a push rod 19. The first tooth column 12 is fixedly installed 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 tooth column 12 or the second tooth column 13.

[0029] In this embodiment, the second clamping frame 8 is fixedly installed on the moving plate 14, and a second tooth column 13 is provided on the side of the second clamping frame 8. A rotating gear 23 is movably installed on the fixing plate 6. The first tooth column 12 and the second tooth column 13 are both meshed with the rotating gear 23, and the first tooth column 12 and the second tooth column 13 are both rotationally symmetric about the rotating gear 23. When the second telescopic cylinder 10 moves downward, it will drive the first tooth column 12 to move downward through the first connecting rod 11. When the first tooth column 12 moves downward, it will drive the first clamping frame 7 to move downward together. When the first tooth column 12 moves downward, it will drive the second tooth column 13 to move upward through the rotating gear 23. In this way, the second clamping frame 8 will move upward, and together with the first clamping frame 7, it will 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.

[0030] In this embodiment, a collection box 33 is also fixedly installed on the moving plate 14. A collection groove is formed on the upper surface of the collection box 33. The collection groove is located below the cutting tool 5. The cutting groove is used to collect the waste generated when the cutting tool 5 cuts the fire hydrant pipe 9, preventing the waste generated when the fire hydrant pipe 9 is cut from splashing. A moving rod 20 is movably installed in the collection box 33, and an air pump 21 is fixedly installed in the collection box 33 by bolts. A first compression spring 24 and a second connection channel 26 are fixedly installed above the moving rod 20. Moreover, a vertical rod is movably installed through the inside of the moving rod 20, and the first compression spring 24 is sleeved on the vertical rod. The air outlet of the air pump 21 is communicated with the second connection channel 26. Before the cutting tool 5 cuts the fire hydrant pipe 9, that is, when the first connecting rod 11 does not move downward, the air outlet of the air pump 21 contacts the moving rod 20. At this time, the second connection channel 26 is not communicated with the air outlet of the air pump 21. After the first connecting rod 11 moves downward, the pushing rod 19 contacts the moving rod 20 and continues to drive the moving rod 20 to move downward, which will cause the first compression spring 24 to stretch. At the same time, the downward movement of the moving rod 20 will drive the second connection channel 26 to move downward and be communicated with the air outlet of the air pump 21.

[0031] In this embodiment, the first clamping frame 7 and the second clamping frame 8 are symmetrically distributed, and the shapes and sizes of the first clamping frame 7 and the second clamping frame 8 are the same. A communication 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 communication channel. A first connection channel 25 is formed through the side of the second clamping frame 8, and the first connection channel 25 is communicated with the second connection channel 26. When the air outlet of the air pump 21, the second connection channel 26, and the first connection channel 25 are in the same plane, the gas generated by the operation of the air pump 21 will enter the second clamping frame 8.

[0032] In this embodiment, partition plates 28 are fixedly installed at equal intervals in the second clamping frame 8. A piston plate 29 is provided between every two partition plates 28. The side of the piston plate 29 is in sliding contact with the partition plates 28 and the inner wall of the second clamping frame 8. The gas on both sides of the piston plate 29 does not flow. Support rods 30 and second compression springs 31 are fixedly installed on both sides of the piston plate 29 respectively. An air vent channel 32 is formed between the chambers on both sides of each partition plate 28.

[0033] 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 with different diameters. At the same time, anti-slip patterns are formed on the surface of the clamping rollers 27 to prevent the fire hydrant pipe 9 from sliding when the clamping rollers 27 clamp the fire hydrant pipe 9.

[0034] The partition plate 28, piston plate 29, support rod 30, second compression spring 31, flexible mounting plate 22, and clamping roller 27 with anti-slip lines inside the first clamping frame 7 and the second clamping frame 8 cooperate with each other to clamp and fix fire hydrant pipes 9 with different diameters more fittingly and stably, further enhancing the adaptability of the equipment to pipes of different specifications.

[0035] A contactor is provided between the first clamping frame 7 and the second clamping frame 8. Only when the contactor is activated will the first telescopic cylinder 4 start to work. The contactor adopts mature technologies on the existing market.

[0036] A contactor is provided between the first clamping frame 7 and the second clamping frame 8. Only when the first clamping frame 7 contacts and activates the contactor with the second clamping frame 8 will the first telescopic cylinder 4 drive the cutting tool 5 to work, ensuring that the fire hydrant pipe 9 has been firmly fixed before cutting; before the first clamping frame 7 moves down and is about to contact the second clamping frame 8, the push rod 19 will first contact the moving rod 20. During the continuous downward movement of the first clamping frame 7, the push rod 19 will drive the moving rod 20 to move down. At the same time, during the downward movement of the moving rod 20, the first compression spring 24 will be stretched, and the downward movement of the moving rod 20 will also drive the second connection channel 26 to move down together. When the first clamping frame 7 and the second clamping frame 8 come into contact with each other, the push rod 19 stops moving down. The second connection channel 26 on the moving rod 20 will communicate with the first connection channel 25 and the air outlet of the air pump 21 and be in the same straight-line plane. The valve of the air pump 21 is opened, so that the gas in the air pump 21 will enter the second clamping frame 8 and the first clamping frame 7. The gas of the air pump 21 will fill the chambers in the first clamping frame 7 and the second clamping frame 8. The piston plate 29 is in a movable state in the clamping frame and is connected to the inside of the clamping frame by the second compression 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. 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. When the piston plate 29 continues to move, the clamping rollers 27 at both ends of the mounting plate 22 will be driven to approach the fire hydrant pipe 9 together, so that the clamping rollers 27 on the mounting plate 22 will all adhere to the outer wall of the fire hydrant pipe 9, completing the clamping of the fire hydrant pipe 9. The anti-slip lines on the clamping roller 27 will ensure that the clamping roller 27 will not shift when contacting the fire hydrant pipe 9, and at the same time prevent the fire hydrant pipe 9 from moving when it is clamped and fixed.

[0037] Working principle of this embodiment: During use, place the fire hydrant pipe 9 to be cut on the clamping table 3. The first motor 16 works to drive the second lead screw 17 to rotate. When the second lead screw 17 rotates, it will drive the clamping block 18 to clamp and fix one end of the fire hydrant pipe 9. The second motor and the first lead screw 15 can drive the clamping table 3 to move towards the other clamping table 3, and clamp the other end of the fire hydrant pipe 9. 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 lead screw 15 drives the clamping table 3 to move, achieving the adjustable cutting of the length of the fire hydrant pipe 9.

[0038] Before the cutting tool 5 cuts the fire hydrant pipe 9, the second telescopic cylinder 10 works and drives the first connecting rod 11 to move downward. When the first connecting rod 11 moves downward, it will drive the first tooth column 12 and the push rod 19 to move downward together. When the first tooth column 12 moves downward, it will drive the first clamping frame 7 to move downward together. Moreover, when the first tooth column 12 moves downward, it will drive the second tooth column 13 upward through the rotating gear 23. In this way, when the second tooth column 13 moves upward, it will drive the second clamping frame 8 to move upward and drive the moving plate 14 to move upward. As the push rod 19 moves downward and the moving plate 14 moves upward synchronously, the push 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 collection box 33, it will stretch the first compression spring 24. 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, and the air outlet of the air pump 21, the second connecting channel 26 and the first connecting channel 25 are in the same plane. In this way, 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 communication channel. The gas entering the two clamping frames will cause the piston plate 29 to move towards the fire hydrant pipe 9. When the piston plate 29 moves, it will stretch the second compression spring 31. 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 outer side of the fire hydrant pipe 9. Since the mounting plate 22 can be bent, the mounting plate 22 and the clamping roller 27 cooperate with each other to clamp and fix fire hydrant pipes 9 with different diameters, ensuring that both sides of the cutting position of the fire hydrant pipe 9 will not shake and preventing the cutting tool 5 from being stuck.

[0039] Then, the first telescopic cylinder 4 drives the cutting tool 5 to cut the fire hydrant pipe 9.

[0040] The collection groove on the collection box 33 can collect the waste generated during the cutting of the fire hydrant pipe 9 to prevent the waste from splashing.

[0041] The push rod 19 moves downward together with the downward movement of the first clamping frame 7. Only when the first clamping frame 7 is connected to the second clamping frame 8, 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 waste of resources.

[0042] Conversely, when the cutting of the fire hydrant pipe 9 is completed, the first telescopic cylinder 4 first drives the cutting tool 5 back to its original position. Then the second telescopic cylinder 10 works and drives the first clamping frame 7 and the second clamping frame 8 to separate. 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 is blocked by the moving rod 20, and the gas of the air pump 21 will not enter the second clamping frame 8.

[0043] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A workpiece cutting device for fire hydrant production, comprising a workbench and a fire hydrant pipe, characterized in that: 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. The stabilizing component 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 and drives 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 to prevent the fire hydrant pipe from shaking when being cut.

2. A workpiece cutting device 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. A workpiece cutting device 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.

4. The workpiece cutting equipment for fire hydrant production according to claim 1, characterized in that: The workbench is also 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 a cutting knife, and the cutting knife is located between two adjacent first clamping frames.

5. A workpiece cutting device for fire hydrant production according to claim 4, characterized in that: A first connecting rod is disposed at the output shaft end of the second telescopic cylinder, a first gear column and a pushing rod are disposed on the first connecting rod, and the first gear column is fixedly connected to the first clamping frame.

6. A workpiece cutting device for fire hydrant production according to claim 5, characterized in that: The second clamping frame is located on the movable plate, and a second gear column is arranged on the side of the second clamping frame. A rotating gear is arranged 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.

7. The workpiece cutting equipment for fire hydrant production according to claim 5, characterized in that: The movable plate is also provided with a collecting frame, the collecting 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 communicated with the second connecting channel.

8. The workpiece cutting equipment for fire hydrant production according to claim 7, characterized in that: The first clamping frame and the second clamping frame are symmetrically distributed with each other, a connecting channel is arranged 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.

9. The workpiece cutting equipment for fire hydrant production according to claim 1, characterized in that: The second clamping frame is provided with a partition, 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.

10. A workpiece cutting device for fire hydrant production according to claim 9, characterized in that: The support rod passes through the second clamping frame and is provided with a mounting plate, and clamping rollers are arranged on the mounting plate at equal intervals.

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