Hydraulic plate shearing machine for processing lining copper alloy composite pipe fittings

Abstract

The application discloses a hydraulic plate shearing machine for processing of copper alloy composite pipe fittings, and relates to the technical field of pipe fitting processing equipment. The hydraulic plate shearing machine comprises a machine body base, a driving mechanism, a synchronous movement mechanism, a shearing mechanism, an input guide mechanism and an output guide mechanism. The driving mechanism drives the synchronous movement mechanism to move at the same speed and in the same direction with the metal plate, and the shearing mechanism on the synchronous movement mechanism completes cutting when the two are relatively static, without stopping the plate conveying. The shearing mechanism comprises a pressing plate hydraulic cylinder and a shearing hydraulic cylinder, and the plate can be pressed first and then sheared, so that the cutting precision is improved. The cutting retreat groove is obliquely arranged, and is matched with a cooling liquid spray head and a waste liquid collecting box, so that cooling and lubrication and waste liquid recovery are realized. The input and output guide mechanisms guarantee horizontal conveying of the plate. The equipment improves production efficiency and cutting quality, prolongs the service life of the cutter, and meets the green production requirements.

Description

Technical Field

[0001] This application relates to the field of materials processing technology, specifically to a hydraulic shearing machine for processing copper alloy-lined composite pipe fittings. Background Technology

[0002] Copper alloy-lined composite pipe fittings, possessing both the structural strength of the base material and the excellent corrosion resistance and thermal conductivity of the copper alloy lining, have been widely used in chemical, energy, and water supply and drainage industries. During their production and processing, the cutting of the metal sheet is a crucial step in ensuring the dimensional accuracy of the pipe fittings and the quality of subsequent forming.

[0003] Currently, metal sheet cutting equipment used for processing copper alloy composite pipe fittings typically requires stopping the conveyor power at regular intervals during operation. The cutting operation is completed only after the metal sheet has come to a complete stop. This "stop-and-cut" mode has significant drawbacks: firstly, frequent start-stop processes greatly prolong the total cutting time, severely restricting the continuous operation of the production line, resulting in low production efficiency and difficulty in meeting the needs of large-scale industrial production; secondly, the metal sheet is prone to slight displacement or vibration during start-and-stop operations, which may cause deviations in cutting dimensions, affecting the flatness of the cut, and consequently adversely affecting subsequent pipe fitting forming, welding, and other processes, increasing the product defect rate.

[0004] Furthermore, traditional cutting equipment, lacking effective cooling and lubrication mechanisms, generates significant heat due to friction between the cutting blade and the metal sheet during the shearing process. This not only accelerates blade wear and shortens its lifespan but can also cause material changes at the cut edge of the metal sheet due to high temperatures, affecting the overall performance of the pipe fitting. Simultaneously, if the debris and waste liquid generated during the shearing process are not collected and treated promptly, they will pollute the working environment, failing to meet the requirements of modern green production. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a hydraulic shearing machine for processing copper alloy composite pipe fittings, so as to solve the problems mentioned in the background art.

[0006] According to one aspect of this application, a hydraulic shearing machine for processing copper alloy composite pipe fittings includes a machine base, a drive mechanism, a synchronous moving mechanism, a shearing mechanism, an input guiding mechanism, and an output guiding mechanism. The drive mechanism is fixedly mounted on the top of the machine base along its length. A synchronous moving mechanism is mounted on the drive mechanism, and the two are connected by a transmission connection. The moving direction of the synchronous moving mechanism is consistent with the conveying direction of the metal sheet, and the moving speed of the synchronous moving mechanism is the same as the conveying speed of the metal sheet. A shearing mechanism is mounted on the synchronous moving mechanism, and the top of the synchronous moving mechanism corresponds to the shearing machine. A cutting and retraction groove is provided at the structure location. A coolant nozzle is provided at one end of the cutting and retraction groove. The coolant nozzle is connected to a cutting coolant device via a hose. A waste liquid collection tank is provided at the other end of the cutting and retraction groove. An input guide mechanism is provided at one end of the machine base located at the input end of the synchronous moving mechanism, and an output guide mechanism is provided at one end of the machine base located at the output end of the synchronous moving mechanism. The metal plate used to process into copper alloy composite pipe fittings passes through the input guide mechanism, the synchronous moving mechanism, and the output guide mechanism in sequence, and the metal plate is kept in a horizontal conveying position.

[0007] Preferably, the shearing mechanism includes a support frame, a shearing hydraulic cylinder, a strip shearing blade, a pressure plate hydraulic cylinder, and a pressure block. The support frame is fixedly installed on the top of the synchronous moving mechanism. At least two shearing hydraulic cylinders are evenly installed on the middle of the top of the support frame along the width direction of the metal sheet. The extension rod of each shearing hydraulic cylinder is vertically downward and fixedly connected to the top of the strip shearing blade. The blade of the strip shearing blade is vertically downward and directly opposite the cutting relief groove. At least two pressure plate hydraulic cylinders are evenly installed on both sides of the shearing hydraulic cylinder along the conveying direction along the width direction of the metal sheet. The extension rod of each shearing hydraulic cylinder is vertically downward and a pressure block is fixedly provided at the end of the extension rod of each shearing hydraulic cylinder. The bottom surface of each pressure block is a flat surface.

[0008] Preferably, the synchronous moving mechanism includes a sliding seat, a roller support, and a conveying roller. The bottom of the sliding seat is connected to the driving mechanism. The top surface of the sliding seat protrudes upward to form a raised plane. The cutting relief groove and the shearing mechanism are both disposed on the raised plane. At least one roller support is fixedly disposed on both sides of the raised plane on the top surface of the sliding seat. A conveying roller is rotatably mounted on the upper and lower parts of each roller support. The metal plate is located between the upper and lower conveying rollers and rolls in contact with them. The top of the lower conveying roller is flush with the raised plane.

[0009] Preferably, the support frame is a gantry structure and is fixedly connected to both sides of the raised plane. The cutting relief groove is provided on the raised plane at a position directly below the blade of the strip shearing blade. The blade of the strip shearing blade is inclined along its length direction. The cross-sectional shape of the cutting relief groove is an inverted triangle shape, and the bottom of the cutting relief groove is inclined along its length direction. The inclination of the blade of the strip shearing blade is consistent with the inclination of the bottom of the cutting relief groove. The end of the cutting relief groove located at the coolant nozzle is a closed structure, and the end of the cutting relief groove located at the waste liquid collection tank is an open structure and is connected to the waste liquid collection tank.

[0010] Preferably, the coolant nozzle is fixedly installed on the support frame and is positioned at one end of the high groove bottom of the cutting relief groove. The coolant nozzle is obliquely oriented towards the cutting relief groove, so that in use, the coolant nozzle can spray onto the surface of the metal plate and into the cutting relief groove.

[0011] Preferably, the waste liquid collection box is fixedly installed on one side of the sliding seat and is located at one end of the bottom of the cutting relief groove. A discharge pipe is connected to the outer wall of the waste liquid collection box so that the cutting coolant can flow into the waste liquid collection box along the cutting relief groove during use.

[0012] Preferably, the driving mechanism includes a drive motor, a lead screw, a nut seat, a connecting plate, a slide rail, and a slider. The drive motor is fixedly installed on the top surface of the machine base. The output shaft of the drive motor is fixedly connected to one end of the lead screw. The other end of the lead screw extends along the length direction of the machine base. Both ends of the lead screw are mounted on the machine base via support seats. The axial direction of the lead screw is parallel to the conveying direction of the metal sheet. At least one nut seat is threaded onto the lead screw. The nut seat is fixedly connected to one side of the bottom of the slider via the connecting plate. Two slide rails are symmetrically laid along the width direction in the middle of the machine base. The axial direction of the slide rails is parallel to the axial direction of the lead screw. Multiple sliders are fixedly provided at the bottom of the slider, and the slider slides on the slide rails via the sliders.

[0013] Preferably, the input guiding mechanism includes a fixed base, a roller support, and a conveying roller. The fixed base is fixedly disposed on the ground. At least two roller supports are fixedly disposed on the top of the fixed base along the conveying direction of the metal sheet. Each roller support has a conveying roller rotatably mounted on its upper and lower parts. The metal sheet is located between the upper and lower conveying rollers and rolls in contact with them. The top of the lower conveying roller is flush with the raised plane.

[0014] Preferably, the output guiding mechanism includes a fixed base two, a roller support three, and a conveying roller three. The fixed base two is fixedly disposed on the ground. At least two roller supports three are fixedly disposed on the top of the fixed base two along the conveying direction of the metal plate. Each roller support three has a conveying roller three rotatably mounted on its upper and lower parts. The metal plate is located between the upper and lower conveying rollers three and rolls in contact with them. The top of the lower conveying roller three is flush with the raised plane.

[0015] Preferably, both the second and third conveying rollers are driven to rotate by a motor.

[0016] The advantages of this application compared to existing technologies are as follows: The hydraulic shearing machine for processing copper alloy composite pipe fittings of this application, through a drive mechanism, drives a synchronous moving mechanism to maintain the same speed and direction as the metal sheet, realizing synchronous cutting of the metal sheet under continuous conveying conditions, completely eliminating the frequent start-stop operation of the conveying power in the traditional "stop-shear" mode; the cutting operation is performed when the synchronous moving mechanism and the metal sheet are relatively stationary, avoiding the displacement or vibration problems of the metal sheet caused by start-stop in traditional equipment, greatly reducing the probability of cutting size deviation, and ensuring the flatness of the cut; at the same time, the hydraulic cylinder of the pressure plate on the gantry support frame drives the pressure block before shearing. The clamping of the metal sheet further prevents sheet movement during shearing, providing high-quality blanks for subsequent pipe forming and welding processes, and reducing product defect rates. The installed coolant spray nozzles spray cutting coolant onto the metal sheet surface and into the cutting groove during shearing, effectively reducing the heat generated by friction between the shearing tool and the sheet, preventing accelerated tool wear due to high temperatures, and extending tool life. The inclined design of the cutting groove, combined with a waste fluid collection tank connected to the open end, allows the cutting coolant to flow smoothly into the collection tank and be centrally treated through the discharge pipe, preventing waste fluid from flowing indiscriminately and polluting the working environment. Furthermore, this structure can also collect debris generated during shearing, facilitating subsequent cleaning. Attached Figure Description

[0017] Figure 1 This is an overall perspective view of a hydraulic shearing machine for processing copper alloy composite pipe fittings according to an embodiment of this application.

[0018] Figure 2 This is a side sectional view of a hydraulic shearing machine for processing copper alloy composite pipe fittings according to an embodiment of this application.

[0019] Figure 3 This is a front sectional view of a hydraulic shearing machine for processing copper alloy composite pipe fittings according to an embodiment of this application.

[0020] Figure 4This is a perspective view of the main body of a hydraulic shearing machine for processing copper alloy composite pipe fittings according to an embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of a hydraulic shearing machine for processing copper alloy composite pipe fittings according to an embodiment of this application during shearing.

[0022] Reference numerals: 1. Machine base; 2. Drive mechanism; 21. Drive motor; 22. Lead screw; 23. Nut seat; 24. Connecting plate; 25. Slide rail; 26. Slider; 3. Synchronous movement mechanism; 31. Sliding seat; 311. Raised plane; 32. Roller support one; 33. Conveying roller one; 4. Shearing mechanism; 41. Support frame; 42. Shearing hydraulic cylinder; 43. Strip shearing blade; 44. Pressure plate hydraulic cylinder; 45. Pressure block; 5. Input guide mechanism; 51. Fixed base one; 52. Roller support two; 53. Conveying roller two; 6. Output guide mechanism; 61. Fixed base two; 62. Roller support three; 63. Conveying roller three; 7. Metal sheet; 8. Cutting relief groove; 9. Coolant nozzle; 10. Waste liquid collection tank; 11. Discharge pipe. Detailed Implementation

[0023] To make the content of this application easier to understand, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the accompanying drawings. Figure 3 In this context, the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, terms such as "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0024] like Figures 1-5As shown, a hydraulic shearing machine for processing copper alloy composite pipe fittings includes a machine base 1, a drive mechanism 2, a synchronous movement mechanism 3, a shearing mechanism 4, an input guide mechanism 5, and an output guide mechanism 6. The drive mechanism 2 is fixedly mounted on the top of the machine base 1 along its length. Specifically, the drive mechanism 2 includes a drive motor 21, a lead screw 22, a nut seat 23, a connecting plate 24, a slide rail 25, and a slider 26. The drive motor 21 is fixedly mounted on the top surface of the machine base 1. The output shaft of the drive motor 21 is fixedly connected to one end of the lead screw 22. The other end of the lead screw 22 extends along the length of the machine base 1. Both ends of the lead screw 22 are mounted on the machine base 1 via support seats. The axial direction of the lead screw 22 is perpendicular to the direction of the metal sheet 7 being conveyed. The lead screw 22 is threaded with at least one nut seat 23, which is fixedly connected to one side of the bottom of the sliding seat 31 of the synchronous moving mechanism 3 via a connecting plate 24. Two slide rails 25 are symmetrically laid along the width of the base 1, with the axis of the slide rails 25 parallel to the axis of the lead screw 22. Multiple sliders 26 are fixedly mounted on the bottom of the sliding seat 31, and the sliding seat 31 slides on the slide rails 25 via the sliders 26. The drive mechanism 2 can drive the slide rails 25 of the synchronous moving mechanism 3 to move back and forth. The moving direction of the synchronous moving mechanism 3 is consistent with the conveying direction of the metal sheet 7, and the moving speed of the synchronous moving mechanism 3 is the same as the conveying speed of the metal sheet 7. Specifically, the synchronous moving mechanism 3 includes... The sliding seat 31 comprises a sliding base 31, roller supports 32, and conveying rollers 33. The top surface of the sliding base 31 protrudes upwards to form a raised plane 311. A shearing mechanism 4 is mounted on the raised plane 311. At least one roller support 32 is fixedly mounted on both sides of the raised plane 311 on the top surface of the sliding base 31. A conveying roller 33 is rotatably mounted on the upper and lower parts of each roller support 32. The metal sheet 7 is located between and in rolling contact with the upper and lower conveying rollers 33. The top of the lower conveying roller 33 is flush with the raised plane 311. The shearing mechanism 4 includes a support frame 41, a shearing hydraulic cylinder 42, a strip shearing blade 43, a pressure plate hydraulic cylinder 44, and a pressure block 45. The support frame 41 has a gantry structure and is flush with the raised plane 311. At least two shearing hydraulic cylinders 42 are evenly installed on the top center of the support frame 41 along the width direction of the metal plate 7. The extension rod of each shearing hydraulic cylinder 42 is vertically downward and fixedly connected to the top of the strip shearing blade 43. The blade of the strip shearing blade 43 is vertically downward and inclined along its length direction. At least two pressure plate hydraulic cylinders 44 are evenly installed on the support frame 41 on both sides of the shearing hydraulic cylinder 42 along the conveying direction along the width direction of the metal plate 7. The extension rod of each shearing hydraulic cylinder 42 is vertically downward and a pressure block 45 is fixedly provided at the end of the extension rod of each shearing hydraulic cylinder 42. The bottom surface of each pressure block 45 is flat.

[0025] In specific implementation, during the shearing process of the metal sheet 7, the drive motor 21 drives the lead screw 22 to rotate, thereby driving the nut seat 23 to move along the lead screw 22 in the conveying direction of the metal sheet 7, which in turn drives the sliding seat 31 to move along the slide rail 25 in the conveying direction of the metal sheet 7. During this process, the moving speed of the sliding seat 31 is consistent with the conveying speed of the metal sheet 7, and thus the sliding seat 31 and the metal sheet 7 remain relatively stationary. Simultaneously, during this process, the pressure plate hydraulic cylinder 44 extends, driving the pressure block 45 to press the metal sheet 7 downwards, and the shearing hydraulic cylinder 42 extends, driving the shearing strip blade downwards to cut the metal sheet 7 (e.g., ...). Figure 5 As shown, after the cutting is completed, the shearing hydraulic cylinder 42 and the pressure plate hydraulic cylinder 44 retract sequentially, driving the shearing strip blade and the pressure plate to rise to their original positions. Then, the drive motor 21 runs in the opposite direction, thereby driving the sliding seat 31 to move quickly in the opposite direction along the slide rail 25 to the initial position and prepare for the next shearing process. This eliminates the need to stop the conveying of the metal sheet 7 when cutting it, greatly shortening the shearing process time and improving production efficiency.

[0026] In the above design, the drive mechanism 2 drives the synchronous moving mechanism 3 to move at the same speed and in the same direction as the metal sheet 7, realizing synchronous cutting of the metal sheet 7 under continuous conveying. This completely eliminates the frequent start-stop operation of the conveying power in the traditional "stop-and-cut" mode. This design not only saves the time occupied by the start-stop process, but also ensures the continuous operation of the production line, significantly shortens the total time of the cutting process, and effectively meets the needs of large-scale industrial production. The cutting operation is performed when the synchronous moving mechanism 3 and the metal sheet 7 are relatively stationary, avoiding the displacement or vibration of the metal sheet 7 caused by the start-stop of traditional equipment, greatly reducing the probability of cutting size deviation and ensuring the flatness of the cut. At the same time, the pressure plate hydraulic cylinder 44 on the gantry support frame 41 drives the pressure block 45 to press the metal sheet 7 before cutting, further preventing the sheet from shaking during the cutting process, providing high-quality blanks for subsequent pipe forming, welding and other processes, and reducing the product defect rate.

[0027] In one embodiment, combined Figures 1-5A cutting relief groove 8 is provided on the raised plane 311 at a position directly below the blade of the strip shearing blade 43. The cross-sectional shape of the cutting relief groove 8 is an inverted triangle, and the bottom of the groove 8 is inclined along its length. The inclination of the blade of the strip shearing blade 43 is consistent with the inclination of the bottom of the cutting relief groove 8. A coolant nozzle 9 is provided at one end of the cutting relief groove 8, and the coolant nozzle 9 is connected to a cutting coolant device via a hose. A waste liquid collection tank 10 is provided at the other end of the cutting relief groove 8. The end of the cutting relief groove 8 at the coolant nozzle 9 is a closed structure, and the end of the cutting relief groove 8 at the waste liquid collection tank 10 is a closed structure. The opening structure is connected to the waste liquid collection tank 10; in addition, the coolant nozzle 9 is fixedly installed on the support frame 41 and the coolant nozzle 9 is positioned at the high end of the cutting relief groove 8. The coolant nozzle 9 is set obliquely towards the cutting relief groove 8. In use, the coolant nozzle 9 can spray onto the surface of the metal plate 7 and into the cutting relief groove 8; the waste liquid collection tank 10 is fixedly installed on one side of the sliding seat 31 and the waste liquid collection tank 10 is positioned at the low end of the cutting relief groove 8. A discharge pipe 11 is connected to the outer wall of the waste liquid collection tank 10. In use, the cutting coolant can flow into the waste liquid collection tank 10 along the cutting relief groove 8.

[0028] In the above design, the coolant nozzle 9 sprays cutting coolant onto the surface of the metal sheet 7 and into the cutting relief groove 8 during the shearing process. This effectively reduces the heat generated by friction between the shearing tool and the sheet, preventing accelerated tool wear due to high temperatures and extending tool life. Simultaneously, the coolant prevents material changes at the cut edge of the metal sheet 7 due to high temperatures, ensuring the overall performance of the copper alloy composite pipe fitting. The cutting relief groove 8 features an inclined design, coupled with a waste liquid collection tank 10 connected to its open end, allowing the cutting coolant to flow smoothly into the collection tank and be centrally treated through the discharge pipe 11, preventing waste liquid from flowing indiscriminately and polluting the working environment. Furthermore, this structure can collect debris generated during the shearing process, facilitating subsequent cleaning.

[0029] In one embodiment, combined Figures 1-5An input guide mechanism 5 is provided on one end of the machine base 1 at the input end of the synchronous moving mechanism 3, and an output guide mechanism 6 is provided on one end of the machine base 1 at the output end of the synchronous moving mechanism 3. Specifically, the input guide mechanism 5 includes a fixed base 51, roller supports 52, and conveying rollers 53. The fixed base 51 is fixedly installed on the ground. At least two roller supports 52 are fixedly installed on the top of the fixed base 51 along the conveying direction of the metal plate 7. Each roller support 52 has a conveying roller 53 rotatably mounted on its upper and lower parts, and the metal plate 7 is located between and rolls in contact with the upper and lower conveying rollers 53. The top of the second conveying roller 53 is flush with the raised plane 311; the output guiding mechanism 6 includes a fixed base 61, a roller support 62, and a conveying roller 63. The fixed base 61 is fixedly installed on the ground. At least two roller supports 62 are fixedly installed on the top of the fixed base 61 along the conveying direction of the metal plate 7. The upper and lower parts of each roller support 62 are rotatably mounted with a conveying roller 63, and the metal plate 7 is located between the upper and lower conveying rollers 63 and rolls in contact with them. The top of the lower conveying roller 63 is flush with the raised plane 311; wherein, both the second conveying roller 53 and the third conveying roller 63 are driven to rotate by a motor.

[0030] In the above design, the input guiding mechanism 5 and the output guiding mechanism 6 guide and transport the metal sheet 7 through the upper and lower conveying rollers. The top of the lower conveying roller is flush with the raised plane 311 of the synchronous moving mechanism 3, which ensures that the metal sheet 7 is kept in a horizontal conveying state throughout the entire processing, reducing jamming or deviation during the conveying process.

[0031] During the conveying process, the metal sheet 7, which is used to process into copper alloy composite pipe fittings, passes sequentially between the upper and lower conveying rollers 53 of the input guiding mechanism 5, between the upper and lower conveying rollers 33 of the synchronous moving mechanism 3, directly below the blade of the strip shearing blade 43, and between the upper and lower conveying rollers 63 of the output guiding mechanism 6, while the metal sheet 7 is conveyed horizontally.

[0032] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.

Claims

1. A hydraulic shearing machine for processing copper alloy composite pipe fittings, comprising a machine base (1), a drive mechanism (2), a synchronous movement mechanism (3), a shearing mechanism (4), an input guide mechanism (5), and an output guide mechanism (6), characterized in that, The base (1) of the machine body is fixedly provided with a drive mechanism (2) along its length. The drive mechanism (2) is provided with a synchronous moving mechanism (3) and the two are connected by transmission. The moving direction of the synchronous moving mechanism (3) is consistent with the conveying direction of the metal plate (7), and the moving speed of the synchronous moving mechanism (3) is the same as the conveying speed of the metal plate (7). A shearing mechanism (4) is installed on the synchronous moving mechanism (3). A cutting relief groove (8) is opened at the top of the synchronous moving mechanism (3) corresponding to the position of the shearing mechanism (4). A coolant nozzle (9) is provided at one end of the cutting relief groove (8). The coolant nozzle (9) is connected to the cutting coolant equipment via a hose. The other end of the cut-off relief groove (8) is provided with a waste liquid collection tank (10). The base (1) is provided with an input guide mechanism (5) at one end of the input end of the synchronous moving mechanism (3). The base (1) is provided with an output guide mechanism (6) at one end of the output end of the synchronous moving mechanism (3). The metal plate (7) used to process into copper alloy composite pipe fittings passes through the input guide mechanism (5), the synchronous moving mechanism (3) and the output guide mechanism (6) in sequence, and the metal plate (7) is kept in a horizontal conveying position.

2. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 1, characterized in that, The shearing mechanism (4) includes a support frame (41), a shearing hydraulic cylinder (42), a strip shearing blade (43), a pressure plate hydraulic cylinder (44), and a pressure block (45). The support frame (41) is fixedly installed on the top of the synchronous moving mechanism (3). At least two shearing hydraulic cylinders (42) are evenly installed on the middle part of the top of the support frame (41) along the width direction of the metal plate (7). The extension rod of each shearing hydraulic cylinder (42) is vertically downward and fixedly connected to the top of the strip shearing blade (43). The blade of the strip shearing blade (43) is vertically downward and directly opposite the cutting relief groove (8). At least two pressure plate hydraulic cylinders (44) are evenly installed on both sides of the shearing hydraulic cylinder (42) along the width direction of the metal plate (7). The extension rod of each shearing hydraulic cylinder (42) is vertically downward and a pressure block (45) is fixedly provided at the end of the extension rod of each shearing hydraulic cylinder (42). The bottom surface of each pressure block (45) is flat.

3. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 2, characterized in that, The synchronous moving mechanism (3) includes a sliding seat (31), a roller support (32) and a conveying roller (33). The bottom of the sliding seat (31) is connected to the driving mechanism (2). The top surface of the sliding seat (31) protrudes upward to form a raised plane (311). The cutting relief groove (8) and the shearing mechanism (4) are both located on the raised plane (311). At least one roller support (32) is fixedly provided on both sides of the raised plane (311) on the top surface of the sliding seat (31). The upper and lower parts of each roller support (32) are rotatably mounted with a conveying roller (33). The metal plate (7) is located between the upper and lower conveying rollers (33) and rolls in contact with them. The top of the lower conveying roller (33) is flush with the raised plane (311).

4. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 3, characterized in that, The support frame (41) is a gantry structure and is fixedly connected to both sides of the raised plane (311). The cutting relief groove (8) is provided on the raised plane (311) at the position directly below the blade of the strip shearing blade (43). The blade of the strip shearing blade (43) is inclined along its length direction. The cross-sectional shape of the cutting relief groove (8) is an inverted triangle shape and the bottom of the cutting relief groove (8) is inclined along its length direction. The inclination of the blade of the strip shearing blade (43) is consistent with the inclination of the bottom of the cutting relief groove (8). The cutting relief groove (8) is closed at one end of the coolant nozzle (9) and open at one end of the waste liquid collection tank (10) and is connected to the waste liquid collection tank (10).

5. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 4, characterized in that, The coolant nozzle (9) is fixedly installed on the support frame (41) and the coolant nozzle (9) is located at one end of the high groove bottom of the cutting relief groove (8). The coolant nozzle (9) is set obliquely towards the cutting relief groove (8). In use, the coolant nozzle (9) can spray onto the surface of the metal plate (7) and into the cutting relief groove (8).

6. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 5, characterized in that, The waste liquid collection tank (10) is fixedly installed on one side of the sliding seat (31) and the waste liquid collection tank (10) is located at the lower end of the cutting relief groove (8). A discharge pipe (11) is provided on the outer wall of the waste liquid collection tank (10). When in use, the cutting coolant can flow into the waste liquid collection tank (10) along the cutting relief groove (8).

7. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 3, characterized in that, The drive mechanism (2) includes a drive motor (21), a lead screw (22), a nut seat (23), a connecting plate (24), a slide rail (25), and a slider (26). The drive motor (21) is fixedly installed on the top surface of the machine base (1). The output shaft of the drive motor (21) is fixedly connected to one end of the lead screw (22). The other end of the lead screw (22) extends along the length of the machine base (1). Both ends of the lead screw (22) are mounted on the machine base (1) through support seats. The axial direction of the lead screw (22) is perpendicular to the metal plate. (7) The conveying direction is parallel. At least one nut seat (23) is threaded on the lead screw (22). The nut seat (23) is fixedly connected to one side of the bottom of the sliding seat (31) through the connecting plate (24). Two slide rails (25) are symmetrically laid in the middle of the machine base (1) along its width direction. The axis of the slide rail (25) is parallel to the axis of the lead screw (22). Multiple sliders (26) are fixedly provided at the bottom of the sliding seat (31), and the sliding seat (31) slides on the slide rail (25) through the sliders (26).

8. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 3, characterized in that, The input guiding mechanism (5) includes a fixed base (51), a roller support (52), and a conveying roller (53). The fixed base (51) is fixedly installed on the ground. At least two roller supports (52) are fixedly installed on the top of the fixed base (51) along the conveying direction of the metal plate (7). Each roller support (52) has a conveying roller (53) rotatably installed on its upper and lower parts. The metal plate (7) is located between the upper and lower conveying rollers (53) and rolls in contact with them. The top of the lower conveying roller (53) is flush with the raised plane (311).

9. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 8, characterized in that, The output guiding mechanism (6) includes a fixed base two (61), a roller support three (62) and a conveying roller three (63). The fixed base two (61) is fixedly installed on the ground. At least two roller supports three (62) are fixedly installed on the top of the fixed base two (61) along the conveying direction of the metal plate (7). Each roller support three (62) has a conveying roller three (63) rotatably installed on its upper and lower parts. The metal plate (7) is located between the upper and lower conveying rollers three (63) and rolls in contact with them. The top of the lower conveying roller three (63) is flush with the raised plane (311).

10. The hydraulic shearing machine for processing copper alloy composite pipe fittings according to claim 9, characterized in that, Both the second (53) and the third (63) conveyor rollers are driven by motors.

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