Metal material cutting device for municipal engineering and cutting method thereof

Abstract

The invention relates to the technical field of metal cutting, in particular to a municipal engineering metal material cutting device and a cutting method thereof.The municipal engineering metal material cutting device comprises a rotating assembly, a mounting rod, a shell assembly, a connecting assembly, a telescopic assembly and a cutting tool; the rotating assembly is placed at the circle center of an object needing to be cut, and the mounting rod is mounted on the side face of the rotating assembly. The shell assembly is mounted on the side face of the mounting rod, the connecting assembly is mounted in the shell assembly, the telescopic assembly is mounted in the connecting assembly, and the cutting tool is mounted at one end of the connecting assembly. An oil pump assembly is arranged on the side face of the shell assembly and conveys or pumps hydraulic oil into the shell assembly through a two-way oil pump machine, and then the connecting assembly and the telescopic assembly stretch out and draw back to change the length value between the cutting tool and the rotating assembly.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, and in particular to a metal material cutting device for municipal engineering and a cutting method thereof. Background Art

[0002] In municipal engineering, the cutting of metal materials is a common and important operation, mainly used in the following scenarios: Pipeline installation and maintenance: including cutting, trimming or removing metal water pipes, gas pipes and sewage pipes for connection, welding or replacement. Customized processing of metal components: Municipal facilities (such as street lights, railings, guardrails, bridge components, etc.) need to be cut into specific sizes or shapes according to actual engineering needs to ensure accurate installation. Road and bridge construction: Cut metal formwork, reinforcement steel bars or steel plates to prepare for subsequent installation and welding. Emergency repair: In emergencies (such as water supply pipes or gas pipes leaking), metal parts need to be cut quickly for emergency repairs. Facility upgrading and renovation: In the process of upgrading municipal facilities, old metal parts need to be cut to make room for the installation of new facilities. These scenarios require operators to have professional skills and use appropriate cutting equipment, such as plasma cutting machines, flame cutting machines or electric cutting tools, to meet the cutting needs of different metal materials. In addition, safety regulations should be strictly observed during the cutting process to ensure construction safety and cutting quality.

[0003] In municipal engineering, the need for arc processing is relatively common, especially when installing or repairing pipes, bridge components, guardrails, etc. However, existing technologies usually rely on the operator's experience to complete arc cutting, which leads to the following problems: Rough edges: During manual cutting, due to the inaccurate tool movement trajectory, burrs or irregular bumps are prone to appear on the cut arc edges, affecting subsequent processing and assembly. Quality is difficult to control: Manual operation lacks precise positioning and trajectory guidance, and the cutting radius and shape are prone to errors, resulting in unstable processing quality and may not meet engineering design requirements. Inefficiency: Experience-dependent cutting has high technical requirements for operators, and differences in technical levels directly affect processing efficiency and consistency. Safety hazards: Equipment jitter or cutting trajectory deviation may occur during manual cutting, increasing operational risks.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a metal material cutting device and a cutting method for municipal engineering, which solves the above technical problems. Summary of the invention

[0005] The technical purpose to be achieved by the present invention is to design a metal material cutting device and a cutting method for municipal engineering, which solves the problem that the quality of manual cutting is uncontrolled and the radius value of the arc is difficult to adjust during the cutting of metal materials in existing municipal engineering.

[0006] In order to achieve the above technical objectives, the present invention provides the following technical solutions:

[0007] A metal material cutting device for municipal engineering includes a rotating component, a mounting rod, a housing component, a connecting component, a telescopic component and a cutting tool, and is specially designed to meet the demand for high-precision cutting of metal materials in municipal engineering.

[0008] The core structure of the device is the rotating assembly, which is placed at the center of the circle of the object to be cut to provide a stable rotation axis and ensure the accuracy of arc cutting. The mounting rod is fixed to the side of the rotating assembly and connected to the cutting device as a whole, and plays the role of support and operation guide.

[0009] The housing assembly is fixed to the side of the mounting rod and serves as the core support structure of the whole machine. The housing assembly houses the connection assembly and the telescopic assembly, ensuring that the device has good stability and operational flexibility when working. The connection assembly is located inside the housing assembly and is used in conjunction with the telescopic assembly to form an adjustable mechanical transmission system for adjusting the working position of the cutting tool. The cutting tool is installed at one end of the connection assembly and is responsible for efficient cutting of metal materials.

[0010] In order to achieve length adjustment and precise control, the device is equipped with an oil pump assembly installed on the side of the housing assembly. The oil pump assembly is operated by a two-way oil pump machine to deliver or extract hydraulic oil into the housing assembly. Through hydraulic drive, the connecting assembly and the telescopic assembly can achieve smooth telescopic adjustment, thereby changing the length value between the cutting tool and the rotating assembly. This design allows the radius range of the cutting tool to be flexibly adjusted according to actual needs to adapt to arc cutting tasks of different specifications.

[0011] In addition, the application of the hydraulic system makes the device move smoothly and accurately during the adjustment process, avoiding the errors caused by manual operation in traditional devices. This device not only solves the common problems of rough edges and unstable quality in arc cutting, but also improves cutting efficiency and safety. It is an efficient solution in the field of municipal engineering metal processing.

[0012] Through this structural design, the application of this cutting device in municipal engineering will significantly reduce the dependence on the operator's experience, ensure the high precision and high quality of arc cutting, while improving construction efficiency and promoting the modernization of municipal engineering technology.

[0013] The rotating assembly consists of a rotating shaft, a stable chassis, a rolling ball and a rotating block, and is the key part of the device to achieve precise arc cutting. The rotating shaft is fixedly mounted at one end of the mounting rod, providing stable support and rotation functions. The stable chassis is located below the rotating shaft, and its special stepped design enhances the stability of the overall structure and provides a reliable basic support for the cutting operation.

[0014] There are multiple balls evenly distributed under the stable chassis. These balls are arranged in a circular array to ensure that the chassis can move smoothly and freely during rotation, effectively reduce rotation resistance and wear, and increase the service life of the device. The rotating block is installed at the center of the circle under the stable chassis, serving as the core positioning point of the entire rotating assembly, ensuring that it always rotates precisely around the specified center of the circle during the cutting process.

[0015] The design of the housing assembly includes a first base, a first sleeve and a limiting square groove, which provide a solid support structure and a precise component limiting function for the entire device. The first base is located at the bottom of the housing assembly and serves as a basic support part to ensure that the entire device is stable and reliable during operation and is not easy to shake or shift.

[0016] The first sleeve is installed above the first base and is an important transition structure connecting the various parts of the housing assembly. The upper part of the sleeve is provided with a first outlet for connecting components or hydraulic pipelines and for functional expansion during operation. This opening design not only enhances the flexibility of the device, but also facilitates subsequent maintenance and adjustment operations.

[0017] In addition, a limiting square groove is set on the inner side of the upper part of the first sleeve to play a role in precise positioning and restraint. The limiting square groove can effectively limit the deviation and irregular movement of internal components, ensuring that the device has high-precision action performance during the cutting process, while extending the service life of key components. The overall design embodies the perfect combination of structural stability and functional diversity, providing efficient support and control guarantee for metal material cutting operations.

[0018] The first base has an ingenious design structure, including an annular flow channel, an overflow flow channel and an input flow channel, which together constitute an important basic part of the hydraulic transmission system of the device. The annular flow channel is located inside the first base, distributed in an annular shape, and is used for the storage and transmission of hydraulic oil. Its unique annular structure can ensure that the hydraulic oil is evenly distributed during the flow process, providing support for the stable operation of the device, while improving the working efficiency of the hydraulic system.

[0019] The overflow channel is designed above the annular channel as a safety protection device in the hydraulic system. It can play an overflow and discharge role when the hydraulic oil pressure is too high or the flow is overloaded, effectively avoiding the system from being damaged due to overpressure, thereby improving the safety and reliability of the device.

[0020] The input channel is located on one side of the annular channel and is used for the input connection of external hydraulic oil. It is the main channel for hydraulic oil to enter the system, ensuring the continuous oil supply function of the hydraulic system. Through the mutual cooperation of the annular channel, overflow channel and input channel, the base not only realizes the efficient transmission of hydraulic oil, but also enhances the stability and safety of the system. It is an indispensable core component of the hydraulic system of the entire device.

[0021] The oil pump assembly consists of a bidirectional oil pump, an upper pipe and a lower pipe, and is an important core component for the device to realize hydraulic drive. The bidirectional oil pump is installed on the side of the first sleeve, responsible for the forward delivery and reverse return of hydraulic oil, providing a stable and controllable power source for the device. Its bidirectional design enables the hydraulic system to flexibly realize oil flow control in both forward and reverse directions during the adjustment of the telescopic component, significantly improving the operating accuracy and adaptability of the system.

[0022] The upper pipeline is connected to the top of the two-way oil pump and communicates with the first outlet, and is used to transmit the hydraulic oil to the inside of the device to ensure that the telescopic component obtains continuous and uniform hydraulic power support during operation. The lower pipeline is installed below the two-way oil pump and communicates with the input flow channel. It mainly undertakes the return and circulation functions of the hydraulic oil, forming a closed hydraulic circulation system, which further improves the energy utilization efficiency.

[0023] This design not only ensures the efficiency and stability of the hydraulic oil flow path, but also facilitates maintenance and troubleshooting of the hydraulic system. Through the close cooperation of the two-way oil pump, upper pipeline and lower pipeline, the device can quickly respond to operational needs, achieve precise adjustment and efficient operation, and provide strong technical support for complex metal cutting tasks.

[0024] The connection assembly is composed of a second sleeve, a second base, a positioning block, a limiting slide groove, a second outlet and a connecting flow channel, and is the core part of the connection and support between multiple key functional modules in the device.

[0025] The second sleeve is installed inside the housing assembly as the main frame structure of the connecting assembly, providing installation support and operation channels for other components. The second base is connected below it to enhance the stability of the assembly and to play a bearing role when the hydraulic system is running. The positioning block is installed on the side of the top of the second sleeve for precise positioning and stable fixation, and cooperates with the limiting slide to ensure the position accuracy and controllability of the movement trajectory of the assembly during operation. The limiting slide is opened on the inner side of the top of the second sleeve to constrain the range of motion of the internal telescopic assembly to prevent displacement or over-extension, thereby improving the safety and reliability of operation.

[0026] The upper part of the second sleeve is designed with a second outlet for the outlet connection of the hydraulic oil flow, while ensuring that the hydraulic oil can flow smoothly during operation. The internal connecting flow channel is an important channel of the entire hydraulic system, responsible for the circulation of hydraulic oil inside the component, and providing continuous power support for the telescopic component. Through these ingenious designs, the connecting component not only plays a supporting and connecting role, but also ensures the efficiency and stability of the hydraulic system in operation, meeting the needs of complex metal cutting tasks for precise control and flexible adjustment. The limit slide is set to a semicircular shape. The semicircular slide can fit closely with the curved surface of the corresponding component, making the movement process smoother and smoother, and reducing the jamming and jitter caused by friction or sudden angle changes. The semicircular structure of the slide can effectively disperse the pressure when subjected to force, avoid single-point stress concentration, reduce the risk of component wear, and thus extend the service life of the device. The semicircular slide provides a clear motion trajectory limit, so that the internal components always remain within the preset range during sliding or telescopic process, avoid offset or error, and improve the stability and accuracy of operation.

[0027] The telescopic assembly consists of a telescopic base, a telescopic rod and a limit slider, and is an important part of the device to achieve precise adjustment. The telescopic base is set at the bottom of the telescopic assembly to provide a solid support for the entire assembly, ensuring sufficient stability during the telescopic operation. The telescopic rod is installed on the telescopic base and can be extended and shortened under the action of the hydraulic system, thereby adjusting the distance between the cutting tool and the rotating assembly to meet different cutting requirements. The telescopic rod is precisely designed to ensure smoothness and efficiency during the movement.

[0028] The limit slider is installed on the surface of the telescopic rod to limit and guide. Its main function is to control the maximum telescopic range of the telescopic rod to avoid exceeding the predetermined limit, ensure that the device will not be over-extended or shortened during operation, and ensure the safety and accuracy of operation. In addition, the limit slider can also reduce the friction between the telescopic rod and other components, extending the service life of the equipment. Through this structural design, the telescopic assembly can perform metal cutting tasks efficiently and stably.

[0029] A method for cutting metal materials for municipal engineering, the method is used in conjunction with the above-mentioned metal material cutting device for municipal engineering; the steps of the method are as follows:

[0030] S1: During municipal work, when metal materials need to be cut in an arc shape, the operator holds the mounting rod and fixes the rotating block at the center of the arc;

[0031] S2: Start the bidirectional oil pump to input hydraulic oil into the upward guide tube or the lower pipeline, so as to extend and retract the telescopic component and adjust the distance between the cutting tool and the rotating block;

[0032] S3: Start the cutting tool, the operator rotates the mounting column, and the cutting tool performs arc cutting on the metal material;

[0033] S4: During the cutting process, the operator monitors whether the cutting radius meets the design requirements in real time by observing the measuring ruler, and can adjust the length of the telescopic component again if necessary;

[0034] S5: After the cutting is completed, turn off the cutting tool and the two-way oil pump, remove the mounting rod, and clean the cutting part to ensure that the cutting effect meets the engineering requirements.

[0035] The beneficial effects of the present invention are as follows:

[0036] (1) The invention realizes precise adjustment and efficient operation of the metal cutting device by providing a shell component, a connecting component and a telescopic component, and cooperating with the bidirectional oil pump operation of the oil pump component. The shell component, as the main structure of the device, provides support and protection. It contains key hydraulic system components, such as the connecting component and the telescopic component. The precise matching of these components ensures the stability and reliability of the entire cutting system. The connecting component is located inside the shell component and is connected to the telescopic component and other key components. Its function is to transmit external hydraulic power to the telescopic component and ensure that each component can maintain the correct motion trajectory during operation. The connecting component not only plays a supporting role, but also adjusts the working position of the cutting tool during the cutting process.

[0037] (2) The telescopic component is controlled by a hydraulic drive system to achieve flexible telescopic adjustment. The component includes a telescopic base and a telescopic rod. The telescopic rod can be extended or retracted within a certain range through the push of the hydraulic system. In this way, the distance between the cutting tool and the rotating component can be accurately adjusted according to different cutting requirements, thereby changing the radius of the cutting tool. In this way, the device can adapt to arc cutting tasks of various specifications and provide diversified cutting solutions. The oil pump component can deliver or extract hydraulic oil to the inside of the housing component through the operation of a two-way oil pump. This hydraulic drive system enables the connecting component and the telescopic component to be smoothly telescopically adjusted. Specifically, when hydraulic oil enters the system, it pushes the telescopic component to extend; and when hydraulic oil is extracted, the telescopic component will retract. This precise hydraulic control allows the distance between the cutting tool and the rotating component to be accurately adjusted according to actual needs, ensuring high precision and consistency during the cutting process.

[0038] (3) In summary, the present invention combines this structure with the hydraulic drive system, so that the radius of the cutting tool can be flexibly adjusted according to different cutting tasks, avoiding the excessive reliance on operator experience in traditional cutting methods. Through precise control and efficient adjustment, the device can meet the needs of various complex arc cutting tasks in municipal engineering, and improve cutting quality, work efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the installation positions of the housing assembly, the connection assembly, the telescopic assembly and the cutting tool of the present invention;

[0043] Figure 3 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0044] Figure 4 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0045] Figure 5 is a cross-sectional view of a housing assembly of the present invention;

[0046] Figure 6 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0047] Figure 7 The present invention Figure 6 A local enlarged schematic diagram in FIG.

[0048] Figure 8 It is a schematic diagram of the structure of the telescopic assembly of the present invention;

[0049] Fig. 9 It is a schematic diagram of the flow direction of the hydraulic oil during the elongation process of the present invention.

[0050] In the figure: 1. rotating assembly; 11. rotating shaft; 12. stabilizing chassis; 13. rolling ball; 14. rotating block; 2. mounting rod; 3. housing assembly; 31. first base; 311. annular flow channel; 312. overflow flow channel; 313. input flow channel; 32. first sleeve; 321. first outlet; 33. limiting square groove; 34. oil pump assembly; 341. bidirectional oil pump; 342. upper pipeline; 343. lower pipeline; 4. connecting assembly; 41. second sleeve; 42. second base; 43. positioning block; 44. limiting slide groove; 45. second outlet; 46. connecting flow channel; 5. telescopic assembly; 51. telescopic base; 52. telescopic rod; 53. limiting slider; 6. cutting tool. DETAILED DESCRIPTION

[0051] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] like Figure 1-9 As shown, a metal material cutting device for municipal engineering includes a rotating component 1, a mounting rod 2, a housing component 3, a connecting component 4, a telescopic component 5 and a cutting tool 6, which is specially designed to meet the high-precision cutting requirements of metal materials in municipal engineering.

[0053] The core structure of the device is a rotating assembly 1, which is placed at the center of the object to be cut, and is used to provide a stable rotating axis 11 to ensure the accuracy of arc cutting. The mounting rod 2 is fixed to the side of the rotating assembly 1, connected to the cutting device as a whole, and plays the role of support and operation guide.

[0054] The housing component 3 is fixed to the side of the mounting rod 2 as the core support structure of the whole machine. The housing component 3 contains the connection component 4 and the telescopic component 5 to ensure that the device has good stability and operational flexibility when working. The connection component 4 is located inside the housing component 3 and is used in conjunction with the telescopic component 5 to form an adjustable mechanical transmission system for adjusting the working position of the cutting tool 6. The cutting tool 6 is installed at one end of the connection component 4 and is responsible for efficient cutting of metal materials.

[0055] In order to achieve length adjustment and precise control, the device is equipped with an oil pump assembly 34, which is installed on the side of the housing assembly 3. The oil pump assembly 34 is operated by a two-way oil pump 341 to deliver or extract hydraulic oil into the housing assembly 3. Through hydraulic drive, the connecting assembly 4 and the telescopic assembly 5 can achieve smooth telescopic adjustment, thereby changing the length value between the cutting tool 6 and the rotating assembly 1. This design allows the radius range of the cutting tool 6 to be flexibly adjusted according to actual needs, adapting to arc cutting tasks of different specifications.

[0056] In addition, the application of the hydraulic system makes the device move smoothly and accurately during the adjustment process, avoiding the errors caused by manual operation in traditional devices. This device not only solves the common problems of rough edges and unstable quality in arc cutting, but also improves cutting efficiency and safety. It is an efficient solution in the field of municipal engineering metal processing.

[0057] Through this structural design, the application of this cutting device in municipal engineering will significantly reduce the dependence on the operator's experience, ensure the high precision and high quality of arc cutting, while improving construction efficiency and promoting the modernization of municipal engineering technology.

[0058] like Figure 3 As shown, the rotating assembly 1 is composed of a rotating shaft 11, a stable chassis 12, a rolling ball 13 and a rotating block 14, and is a key part of the device to achieve precise arc cutting. The rotating shaft 11 is fixedly mounted on one end of the mounting rod 2 to provide stable support and rotation functions. The stable chassis 12 is located below the rotating shaft 11, and its special terraced design enhances the stability of the overall structure and provides a reliable basic support for the cutting operation.

[0059] A plurality of rolling balls 13 are evenly distributed below the stable chassis 12. These rolling balls 13 are arranged in a circular array to ensure that the chassis can move smoothly and freely during rotation, effectively reduce rotation resistance and wear, and increase the service life of the device. The rotating block 14 is installed at the center of the circle below the stable chassis 12 as the core positioning point of the entire rotating assembly 1, ensuring that it always rotates accurately around the specified center of the circle during the cutting process.

[0060] like Figure 4 and Figure 5 As shown, the design of the housing assembly 3 includes a first base 31, a first sleeve 32 and a limiting square groove 33, which provide a solid support structure and precise component limiting function for the entire device. The first base 31 is located at the bottom of the housing assembly 3, as a basic support part, to ensure that the entire device is stable and reliable during operation, and is not easy to shake or shift.

[0061] The first sleeve 32 is installed above the first base 31 and is an important transition structure connecting the various parts of the housing assembly 3. The upper part of the sleeve is provided with a first outlet 321 for connecting components or hydraulic pipelines and expanding functions during operation. This opening design not only enhances the flexibility of the device, but also facilitates subsequent maintenance and adjustment operations.

[0062] In addition, a limiting square groove 33 is provided on the inner side surface of the upper part of the first sleeve 32, which plays a role in precise positioning and restraint. The limiting square groove 33 can effectively limit the deviation and irregular movement of internal components, ensure that the device has high-precision action performance during the cutting process, and extend the service life of key components. The overall design embodies the perfect combination of structural stability and functional diversity, providing efficient support and control guarantee for metal material cutting operations.

[0063] like Figure 5 As shown, the first base 31 has an ingenious design structure, including an annular flow channel 311, an overflow flow channel 312 and an input flow channel 313, which together constitute an important basic part of the hydraulic transmission system of the device. The annular flow channel 311 is located inside the first base 31, distributed in an annular shape, and is used for the storage and transmission of hydraulic oil. Its unique annular structure can ensure that the hydraulic oil is evenly distributed during the flow process, provide support for the stable operation of the device, and improve the working efficiency of the hydraulic system.

[0064] The overflow channel 312 is designed above the annular channel 311 as a safety protection device in the hydraulic system. It can play an overflow and discharge role when the hydraulic oil pressure is too high or the flow is overloaded, effectively avoiding damage to the system due to overpressure, thereby improving the safety and reliability of the device.

[0065] The input channel 313 is located on one side of the annular channel 311 and is used for the input connection of external hydraulic oil. It is the main channel for hydraulic oil to enter the system, ensuring the continuous oil supply function of the hydraulic system. Through the mutual cooperation of the annular channel 311, the overflow channel 312 and the input channel 313, the base not only realizes the efficient transmission of hydraulic oil, but also enhances the stability and safety of the system. It is an indispensable core component of the hydraulic system of the entire device.

[0066] The oil pump assembly 34 is composed of a bidirectional oil pump 341, an upper pipe 342 and a lower pipe 343, and is an important core component for the device to realize hydraulic drive. The bidirectional oil pump 341 is installed on the side of the first sleeve 32, responsible for the forward delivery and reverse return of hydraulic oil, providing a stable and controllable power source for the device. Its bidirectional design enables the hydraulic system to flexibly realize the oil flow control in both the forward and reverse directions during the adjustment process of the telescopic assembly 5, significantly improving the operating accuracy and adaptability of the system.

[0067] The upper pipeline 342 is connected to the upper part of the bidirectional oil pump 341 and communicates with the first outlet 321, and is used to transmit the hydraulic oil to the inside of the device to ensure that the telescopic assembly 5 obtains continuous and uniform hydraulic power support during operation. The lower pipeline 343 is installed below the bidirectional oil pump 341 and communicates with the input flow channel 313. It mainly undertakes the reflux and circulation functions of the hydraulic oil, forming a closed hydraulic circulation system, which further improves the energy utilization efficiency.

[0068] This design not only ensures the efficiency and stability of the hydraulic oil flow path, but also facilitates the maintenance and troubleshooting of the hydraulic system. Through the close cooperation of the bidirectional oil pump 341, the upper pipeline 342 and the lower pipeline 343, the device can quickly respond to operational needs, achieve precise adjustment and efficient operation, and provide strong technical support for complex metal cutting tasks.

[0069] like Figure 6 As shown, the connection assembly 4 is composed of a second sleeve 41, a second base 42, a positioning block 43, a limiting slide groove 44, a second outlet 45 and a connecting flow channel 46, and is the core part of the connection and support between multiple key functional modules in the device.

[0070] The second sleeve 41 is installed inside the housing component 3 as the main frame structure of the connecting component 4, providing installation support and operation channels for other components. The second base 42 is connected below it to enhance the stability of the component and play a bearing role when the hydraulic system is running. The positioning block 43 is installed on the side of the top of the second sleeve 41 for precise positioning and stable fixation, and cooperates with the limiting slide 44 to ensure the position accuracy of the component during operation and the controllability of the movement trajectory. The limiting slide 44 is opened on the inner side of the top of the second sleeve 41 to constrain the movement range of the internal telescopic component 5 to prevent displacement or excessive telescopic phenomenon, thereby improving the safety and reliability of operation.

[0071] The upper part of the second sleeve 41 is designed with a second outlet 45 for the outlet connection of the hydraulic oil flow, and at the same time ensures that the hydraulic oil can flow smoothly during operation. The internal communication channel 46 is an important channel of the entire hydraulic system, which is responsible for the circulation of the hydraulic oil inside the component and provides continuous power support for the telescopic component 5. Through these ingenious designs, the connecting component 4 not only plays a supporting and connecting role, but also ensures the high efficiency and stability of the hydraulic system in operation, and meets the needs of complex metal cutting tasks for precise control and flexible adjustment. The limiting slide 44 is set to a semicircular shape. The semicircular slide can fit closely with the curved surface of the corresponding component, making the movement process smoother and smoother, and reducing the jamming and jitter caused by friction or sudden angle changes. The semicircular structure of the slide can effectively disperse the pressure when subjected to force, avoid single-point stress concentration, reduce the risk of component wear, and thus extend the service life of the device. The semicircular slide provides a clear motion trajectory limit, so that the internal components always remain within the preset range during sliding or telescopic processes, avoid offset or error, and improve the stability and accuracy of operation.

[0072] like Figure 8As shown, the telescopic assembly 5 is composed of a telescopic base 51, a telescopic rod 52 and a limit slider 53, and is an important part of the device to achieve precise adjustment. The telescopic base 51 is arranged at the bottom of the telescopic assembly 5 to provide a solid support for the entire assembly, ensuring sufficient stability during the telescopic operation. The telescopic rod 52 is installed on the telescopic base 51 and can be extended and shortened under the action of the hydraulic system, thereby adjusting the distance between the cutting tool 6 and the rotating assembly 1 to meet different cutting requirements. The telescopic rod 52 is precisely designed to ensure smoothness and efficiency during the movement.

[0073] The limit slider 53 is installed on the surface of the telescopic rod 52 to limit and guide. Its main function is to control the maximum telescopic range of the telescopic rod 52 to avoid exceeding the predetermined limit, ensure that the device will not be over-extended or shortened during operation, and ensure the safety and accuracy of operation. In addition, the limit slider 53 can also reduce the friction between the telescopic rod 52 and other components, thereby extending the service life of the device. Through this structural design, the telescopic assembly 5 can perform metal cutting tasks efficiently and stably.

[0074] A method for cutting metal materials for municipal engineering, the method is used in conjunction with the above-mentioned metal material cutting device for municipal engineering; the steps of the method are as follows:

[0075] S1: During municipal work, when arc cutting of metal materials is required, the operator holds the mounting rod 2 and fixes the rotating block 14 at the center of the arc;

[0076] S2: Start the bidirectional oil pump 341 to input hydraulic oil into the upward conduit or the lower pipe 343, so as to extend and retract the telescopic assembly 5 and adjust the distance between the cutting tool 6 and the rotating block 14;

[0077] S3: Starting the cutting tool 6, the operator rotates the mounting column to perform arc cutting on the metal material through the cutting tool 6;

[0078] S4: During the cutting process, the operator monitors in real time whether the cutting radius meets the design requirements by observing the measuring ruler, and can adjust the length of the telescopic component 5 again if necessary;

[0079] S5: After the cutting is completed, the cutting tool 6 and the bidirectional oil pump 341 are turned off, the mounting rod 2 is removed, and the cutting part is cleaned to ensure that the cutting effect meets the engineering requirements.

[0080] During the working process of the present invention, in municipal engineering, when arc cutting of metal materials is required, the operator first holds the mounting rod 2 and accurately fixes the rotating block 14 at the center of the object to be cut, ensuring that the arc of the cutting is accurately aligned with the target area. The two-way oil pump 341 is started, and the operator controls the upper pipe 342 or the lower pipe 343 to input hydraulic oil to drive the telescopic component 5 to perform telescopic adjustment. Through this process, the operator can flexibly adjust the distance between the cutting tool 6 and the rotating block 14 to ensure that the cutting tool 6 can reach the predetermined working position and size requirements.

[0081] When it is necessary to increase the distance between the cutting tool 6 and the rotating component 1, the bidirectional oil pump 341 pumps the hydraulic oil into the lower pipe 343, the hydraulic oil enters the input channel 313, and after filling the annular channel 311, enters the second sleeve 41 through the overflow channel 312; thereby squeezing the telescopic component 5 to move upward, and this process continues until the telescopic component 5 moves to the top, and the excess hydraulic oil enters the first sleeve 32 through the second outlet 45 and the connecting channel 46. At this time, the second sleeve 41 moves upward, and finally, the excess hydraulic oil flows back from the first outlet 321 into the oil pump component 34.

[0082] After adjusting the cutting distance, the operator starts the cutting tool 6 and starts to rotate the mounting column. By rotating the mounting column, the cutting tool 6 performs arc cutting on the metal material along the set path to ensure the cutting accuracy and effect. During the cutting process, the operator needs to monitor in real time whether the cutting radius meets the design requirements by observing the measuring ruler. If a deviation is found, the operator can adjust the length of the telescopic component 5 again to ensure the cutting accuracy. After the cutting is completed, the operator turns off the cutting tool 6 and the two-way oil pump 341, removes the mounting rod 2, and thoroughly cleans the cutting part to ensure that the cutting effect meets the engineering requirements and avoids residues affecting the subsequent processes.

[0083] Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined in the appended claims.

Claims

1. A metal material cutting device for municipal engineering, characterized in that: It comprises a rotating assembly (1), a mounting rod (2), a housing assembly (3), a connecting assembly (4), a telescopic assembly (5) and a cutting tool (6); The rotating assembly (1) is placed at the center of a circle of an object to be cut, and the mounting rod (2) is mounted on a side of the rotating assembly (1); The housing component (3) is mounted on the side of the mounting rod (2), and the connecting component (4) is mounted inside the housing component (3). The telescopic component (5) is installed inside the connecting component (4), and the cutting tool (6) is installed at one end of the connecting component (4); An oil pump assembly (34) is arranged on the side of the housing assembly (3), and the oil pump assembly (34) delivers or extracts hydraulic oil to the interior of the housing assembly (3) through a bidirectional oil pump (341), thereby connecting the assembly (4) and the telescopic assembly (5) to telescope and change the length value between the cutting tool (6) and the rotating assembly (1).

2. A metal material cutting device for municipal engineering according to claim 1, characterized in that: The rotating assembly (1) comprises a rotating shaft (11), a stable chassis (12), a rolling ball (13) and a rotating block (14); The rotating shaft (11) is mounted on one end of the mounting rod (2), the stable chassis (12) is mounted below the rotating shaft (11), the rolling ball (13) is arranged below the stable chassis (12), and the rotating block (14) is mounted at the center of a circle below the stable chassis (12).

3. A metal material cutting device for municipal engineering according to claim 2, characterized in that: The stable chassis (12) is arranged in a stepped shape, and the rolling balls (13) are arranged in a circular array.

4. The metal material cutting device for municipal engineering according to claim 1, characterized in that: The housing assembly (3) further comprises a first base (31), a first sleeve (32) and a limiting square groove (33); The first base (31) is arranged at the lower part of the housing assembly (3), the first sleeve (32) is installed on the first base (31), the upper part of the first sleeve (32) is provided with a first outlet (321), and the limiting square groove (33) is provided on the inner side surface of the upper part of the first sleeve (32).

5. A metal material cutting device for municipal engineering according to claim 4, characterized in that: The first base (31) comprises an annular flow channel (311), an overflow flow channel (312) and an input flow channel (313) The annular flow channel (311) is opened inside the first base (31), the overflow flow channel (312) is opened on the top of the annular flow channel (311), and the input flow channel (313) is opened on one side of the annular flow channel (311).

6. A metal material cutting device for municipal engineering according to claim 5, characterized in that: The oil pump assembly (34) comprises a bidirectional oil pump (341), an upper pipeline (342) and a lower pipeline (343); The bidirectional oil pump (341) is installed on the side of the first sleeve (32), the upper pipe (342) and the lower pipe (343) are installed above and below the bidirectional oil pump (341), the upper pipe (342) and the first outlet (321) are connected, and the lower pipe (343) and the input flow channel (313) are connected.

7. The metal material cutting device for municipal engineering according to claim 1, characterized in that: The connecting assembly (4) comprises a second sleeve (41), a second base (42), a positioning block (43), a limiting slide groove (44), a second outlet (45) and a connecting flow channel (46); The second sleeve (41) is installed inside the housing assembly (3), the second base (42) is installed below the second sleeve (41), the positioning block (43) is installed on the side of the top end of the second sleeve (41), the limiting slide groove (44) is opened on the inner side of the top end of the second sleeve (41), the second outlet (45) is opened in the upper part of the second sleeve (41), and the connecting flow channel (46) is opened inside the second sleeve (41).

8. The metal material cutting device for municipal engineering according to claim 7, characterized in that: The limiting sliding groove (44) is arranged in a semicircular shape.

9. The metal material cutting device for municipal engineering according to claim 1, characterized in that: The telescopic assembly (5) comprises a telescopic base (51), a telescopic rod (52) and a limiting slider (53); The telescopic base (51) is arranged at the bottom of the telescopic assembly (5), the telescopic rod (52) is installed on the telescopic base (51), and the limiting slider (53) is arranged on the surface of the telescopic rod (52).

10. A method for cutting metal materials for municipal engineering, the method being used in conjunction with a metal material cutting device for municipal engineering as claimed in any one of claims 1 to 9; characterized in that: The steps of the method are as follows: S1: During municipal work, when arc cutting of metal materials is required, the operator holds the mounting rod (2) and aligns the rotating block (14) with the center of the arc and fixes it; S2: starting the bidirectional oil pump (341) to input hydraulic oil into the upper conduit or the lower pipe (343), thereby extending and retracting the telescopic assembly (5) and adjusting the distance between the cutting tool (6) and the rotating block (14); S3: starting the cutting tool (6), the operator rotates the mounting column, and the cutting tool (6) performs arc cutting on the metal material; S4: During the cutting process, the operator monitors in real time whether the cutting radius meets the design requirements by observing the measuring ruler, and can adjust the length of the telescopic component (5) again if necessary; S5: After the cutting is completed, the cutting tool (6) and the two-way oil pump (341) are turned off, the mounting rod (2) is removed, and the cutting part is cleaned to ensure that the cutting effect meets the engineering requirements.

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