A swing type connecting mechanism of an oil cylinder of a numerical control plate shearing machine and a method for using the same

Abstract

The application discloses a swing type connecting mechanism of a numerical control plate shearing machine oil cylinder and a use method thereof, and particularly relates to the technical field of plate shearing machine oil cylinders, and comprises a mounting frame, one side of the mounting frame is connected with an assembling frame, a bottom plate is overlapped below the mounting frame, an oil cylinder assembly is connected on the bottom plate, and the oil cylinder assembly is penetrated and connected on the mounting frame. Through the arrangement of the bottom plate, the first limiting groove, the second limiting groove, the contact plate, the piston frame, the piston cylinder, the second piston rod, the clamping rod and the sliding rod, the gas in the piston frame is quickly extruded into the piston cylinder, the increased air pressure controls the second piston plate and the second piston rod to move and abut against the outside of the oil cylinder assembly, the clamping rod abuts against the second piston rod, after the oil cylinder assembly is completely inserted into the mounting frame, the second piston rod is clamped into the first limiting groove, and the clamping rod is inserted into the second limiting groove, so that the installation of the oil cylinder assembly can be directly completed by pressing upward, the operation is simple and fast, and the loosening condition does not occur.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder technology for shearing machines, and more specifically, to a swing-type connecting mechanism for a CNC shearing machine hydraulic cylinder and its method of use. Background Technology

[0002] When a swing beam shearing machine is in operation, it uses a hydraulic cylinder as the power actuator. The hydraulic cylinder is usually installed using bolts. To ensure stability, a large number of bolts are used to connect and assemble the cylinder. Tightening and subsequent disassembly of the bolts are cumbersome and time-consuming. Furthermore, vibrations during operation can loosen the bolts. After the hydraulic cylinder is installed and connected to the hydraulic oil pipeline, the pipeline may experience significant friction damage or large-scale shaking due to vibration. Therefore, a swing beam connection mechanism for the CNC shearing machine hydraulic cylinder and its usage method are needed to solve these problems. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides a swing-type connection mechanism for the hydraulic cylinder of a CNC shearing machine and its usage method. The technical problem to be solved by the present invention is that the operation of the hydraulic cylinder by bolt assembly is cumbersome, and the bolts may loosen due to vibration. The hydraulic oil pipe of the hydraulic cylinder may be damaged by friction or large movement due to shaking.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a swing-type connection mechanism for a CNC shearing machine cylinder, comprising a mounting frame, an assembly frame connected to one side of the mounting frame, a base plate overlapping the mounting frame, a cylinder assembly connected to the base plate, the cylinder assembly being connected through the mounting frame, a piston control device and a support frame connected inside the mounting frame, an air pipe connected to the piston control device, a piston limiting device connected to the other end of the air pipe, the piston limiting device being connected inside the support frame, a first limiting groove being formed on the cylinder assembly corresponding to the position of the piston limiting device, the piston limiting device being disposed in the first limiting groove, an elastic locking device being provided inside the piston limiting device, the elastic locking device being slidably disposed under the support frame, a connecting hole being formed on the base plate, the elastic locking device being disposed in the connecting hole, a mounting cylinder being connected through one side of the mounting frame, an elastic support device being connected through the mounting cylinder, and a rubber limiting ring being provided outside the elastic support device.

[0005] As a further aspect of the present invention: the piston control device includes a piston frame connected within a mounting frame, a first piston plate slidably disposed within the piston frame, a first piston rod connected below the first piston plate, and the first piston rod penetratingly connected to the bottom of the piston frame.

[0006] As a further aspect of the present invention: a contact plate is connected to one end of the first piston rod outside the piston frame, the contact plate is connected to the base plate, a first elastic component is connected to the first piston plate, the other end of the first elastic component is connected to the piston frame, the piston frame is connected to the air pipe, and the connection position between the air pipe and the piston frame is located on the upper side of the first piston plate.

[0007] As a further aspect of the present invention: the piston limiting device includes a piston cylinder, the piston cylinder is connected in a support frame, a second piston plate is slidably connected in the piston cylinder, and a second piston rod is connected to the side of the second piston plate near the cylinder assembly.

[0008] As a further embodiment of the present invention: a connecting sleeve is slidably provided on the outside of the second piston rod, the connecting sleeve is connected through the piston cylinder, a second limiting groove is provided under the second piston rod, the second piston rod is located in the first limiting groove, and the elastic snap-fit ​​device is located in the second limiting groove.

[0009] As a further aspect of the present invention: a second elastic component is connected to one side of the second piston plate, the second elastic component is connected inside the piston cylinder, the piston cylinder is connected to the air pipe, the connection position of the air pipe and the piston cylinder is located on the side of the second piston plate away from the oil cylinder assembly, and an air hole is opened on the piston cylinder at the position corresponding to the air pipe.

[0010] As a further aspect of the present invention: the elastic locking device includes a sliding sleeve connected in a connecting hole, a sliding rod slidably disposed inside the sliding sleeve, a locking rod connected to the top end of the sliding rod, the locking rod being disposed in a piston limiting device, and a magnetic limiting button connected to the bottom end of the sliding rod.

[0011] As a further embodiment of the present invention: the magnetic limiting button is disposed in the connecting hole, the slide rod is covered with a third elastic component, the third elastic component is connected to the outside of the slide sleeve, and the locking rod passes through and is slidably connected to the support frame.

[0012] As a further embodiment of the present invention: the elastic support device includes a guide sleeve, which is connected through the outside of the mounting cylinder. A guide rod is slidably connected inside the guide sleeve. A movable block is connected to one end of the guide rod outside the mounting cylinder. A connecting groove is provided on the outside of the movable block. A rubber limiting ring is provided in the connecting groove. A movable plate is connected to one end of the guide rod inside the mounting cylinder. A fourth elastic component connected to the guide sleeve and the movable plate is provided on the outer sleeve of the guide rod. Two fifth elastic components are connected to the outside of the movable plate. A limiting support plate is connected to the other end of the fifth elastic component.

[0013] A method for using a swing-type connecting mechanism for a CNC shearing machine cylinder, the method comprising the following steps:

[0014] The hydraulic oil pipe is directly connected to the cylinder assembly through the mounting cylinder. Then the cylinder assembly is placed into the mounting frame from the bottom. As the bottom plate moves upward, it squeezes the contact plate to move. At this time, the contact plate controls the first piston plate to move upward through the first piston rod. The first piston plate transfers the gas in the piston frame to the piston cylinder through the air pipe. The increased air pressure in the piston cylinder smoothly controls the movement of the second piston plate. At this time, the second piston plate drives the second piston rod to move and squeezes it on the surface of the cylinder assembly. The cylinder assembly continues to move upward. At this time, the clamping rod overlaps the surface of the second piston rod.

[0015] When the base plate contacts the mounting frame, the position of the first limiting groove corresponds to the position of the second piston rod. The second piston rod is squeezed into the first limiting groove by air pressure. The movement of the second piston rod drives the second limiting groove to the position of the corresponding locking rod. The third elastic component drives the locking rod upward into the second limiting groove, completing the limiting of the cylinder assembly. The gas in the piston cylinder is continuously discharged through the air hole and returns to atmospheric pressure. At this time, the sliding rubber limiting ring moves closer to the mounting frame. The rubber limiting ring squeezes the moving block to move. The moving block controls the movement of the moving plate and the limiting support plate through the guide rod. The limiting support plate is clamped on the surface of the hydraulic oil pipe.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention, by setting a base plate, a first limiting groove, a second limiting groove, a contact plate, a piston frame, a piston cylinder, a second piston rod, a locking rod, and a sliding rod, allows the contact plate and the first piston plate to move simultaneously as the base plate moves upward. Gas in the piston frame is rapidly compressed into the piston cylinder, and the increased air pressure controls the movement of the second piston plate and the second piston rod to press against the outside of the hydraulic cylinder assembly. The locking rod presses against the second piston rod. After the hydraulic cylinder assembly is fully inserted into the mounting frame, the second piston rod is locked into the first limiting groove, and the locking rod extends into the second limiting groove. This allows the hydraulic cylinder assembly to be installed simply by pressing it upward, making the operation simple, quick, and preventing any loosening.

[0018] This invention, by setting up a rubber limiting ring, a moving block, a moving plate, a fourth elastic component, a fifth elastic component, and a limiting support plate, directly controls the movement of the rubber limiting ring when the hydraulic oil pipe is inside the mounting cylinder. The rubber limiting ring moves by pressing the moving block and the guide rod through the inclined surface of the moving block. The guide rod controls the movement of the moving plate and the limiting support plate. The limiting support plate overlaps the surface of the hydraulic oil pipe. At the same time, the fifth elastic component and the fourth elastic component buffer the vibration of the hydraulic oil pipe and avoid friction damage between the hydraulic oil pipe and the mounting cylinder, as well as prevent the hydraulic oil pipe from shaking significantly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is an exploded three-dimensional structural diagram of the base plate of the present invention;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the support frame of the present invention;

[0023] Figure 5 This is a three-dimensional cross-sectional structural diagram of the piston control device of the present invention;

[0024] Figure 6 This is a three-dimensional cross-sectional structural diagram of the piston limiting device of the present invention;

[0025] Figure 7 For the present invention Figure 2 Enlarged structural diagram of section A;

[0026] Figure 8 This is a three-dimensional structural schematic diagram of the mounting cylinder of the present invention;

[0027] Figure 9 This is a three-dimensional structural schematic diagram of the elastic support device of the present invention;

[0028] In the diagram: 1. Mounting frame; 2. Assembly frame; 3. Base plate; 4. Hydraulic cylinder assembly; 5. First limiting groove; 6. Support frame; 7. Piston control device; 71. Piston frame; 72. First piston plate; 73. First elastic component; 74. First piston rod; 75. Contact plate; 8. Air pipe; 9. Piston limiting device; 91. Piston cylinder; 92. Air hole; 93. Second piston plate; 94. Second elastic component; 95. Second piston rod; 96. Connecting sleeve; 97. Second limiting... 10. Positioning groove; 10. Elastic snap-fit ​​device; 101. Sliding sleeve; 102. Sliding rod; 103. Magnetic limit button; 104. Locking rod; 105. Third elastic component; 11. Connecting hole; 12. Mounting cylinder; 13. Elastic support device; 131. Guide sleeve; 132. Guide rod; 133. Moving block; 134. Connecting groove; 135. Moving plate; 136. Fourth elastic component; 137. Fifth elastic component; 138. Limiting support plate; 14. Rubber limiting ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-9As shown, the present invention provides a swing-type connection mechanism for the hydraulic cylinder of a CNC shearing machine, including a mounting frame 1, an assembly frame 2 connected to one side of the mounting frame 1, and a complete shell can be formed by assembling the assembly frame 2 and the base plate 3, thereby achieving protection and limiting of the hydraulic cylinder assembly 4.

[0031] A base plate 3 overlaps under the mounting frame 1, and a hydraulic cylinder assembly 4 is connected to the base plate 3. The hydraulic cylinder assembly 4 is connected through the mounting frame 1. A piston control device 7 and a support frame 6 are connected inside the mounting frame 1. An air pipe 8 is connected to the outside of the piston control device 7, and a piston limiting device 9 is connected to the other end of the air pipe 8. The piston limiting device 9 is connected inside the support frame 6. A first limiting groove 5 is opened on the outside of the hydraulic cylinder assembly 4 corresponding to the position of the piston limiting device 9. The piston limiting device 9 is located in the first limiting groove 5. An elastic locking device 10 is provided inside the piston limiting device 9. The elastic locking device 10 is slidably located under the support frame 6. A connecting hole 11 is opened on the base plate 3, and the elastic locking device 10 is located in the connecting hole 11. A mounting cylinder 12 is connected through one side of the mounting frame 1. An elastic support device 13 is connected through the mounting cylinder 12. A rubber limiting ring 14 is provided outside the elastic support device 13.

[0032] The piston control device 7 includes a piston frame 71, which is connected to the mounting frame 1. A first piston plate 72 is slidably disposed inside the piston frame 71. A first piston rod 74 is connected below the first piston plate 72 and passes through the piston frame 71.

[0033] One end of the first piston rod 74 located outside the piston frame 71 is connected to a contact plate 75, which is connected to the base plate 3. A first elastic component 73 is connected to the first piston plate 72, and the other end of the first elastic component 73 is connected to the piston frame 71. The piston frame 71 is connected to the air pipe 8, and the connection position between the air pipe 8 and the piston frame 71 is located on the upper side of the first piston plate 72. By setting the piston frame 71, the first piston plate 72, the first piston rod 74, and the contact plate 75, when the contact plate 75 is pushed upward by the base plate 3, the movement of the first piston plate 72 can be smoothly controlled, thereby squeezing and transferring the gas in the piston frame 71 to the air pipe 8. By setting the first elastic component 73, the first elastic component 73 is used to control the first piston plate 72 and the contact plate 75 to reset and move after the base plate 3 is separated from the contact plate 75.

[0034] The piston limiting device 9 includes a piston cylinder 91, which is connected to the support frame 6. A second piston plate 93 is slidably connected inside the piston cylinder 91, and a second piston rod 95 is connected to the side of the second piston plate 93 near the cylinder assembly 4.

[0035] The second piston rod 95 is slidably provided with a connecting sleeve 96, which is connected through the piston cylinder 91. The second piston rod 95 is provided with a second limiting groove 97, and the second piston rod 95 is located in the first limiting groove 5. The elastic snap-fit ​​device 10 is located in the second limiting groove 97.

[0036] A second elastic component 94 is connected to one side of the second piston plate 93. The second elastic component 94 is connected inside the piston cylinder 91. The piston cylinder 91 is connected to the air pipe 8. The connection position of the air pipe 8 and the piston cylinder 91 is located on the side of the second piston plate 93 away from the oil cylinder assembly 4. An air hole 92 is opened on the piston cylinder 91 corresponding to the position of the air pipe 8. By setting up the piston cylinder 91 and the air pipe 8, the air pipe 8 is used to introduce gas into the piston cylinder 91. The instantaneous increase in air pressure inside the piston cylinder 91 can control the movement of the second piston plate 93. The second piston plate 93 controls the movement of the second piston rod 95 by the change in air pressure. The second piston rod 95 cooperates with the first limiting groove 5 to limit the vertical movement of the cylinder assembly 4, preventing the cylinder assembly 4 from moving vertically within the mounting frame 1. By setting an air hole 92, the air hole 92 is used to automatically and slowly discharge the gas after the gas pressure in the piston cylinder 91 increases instantaneously, which facilitates the gas pressure to obstruct the movement of the second piston plate 93 when the cylinder assembly 4 is removed. By setting a second elastic component 94, after the second piston rod 95 loses the limit of the elastic locking device 10, the second elastic component 94 can automatically control the movement of the second piston plate 93 and the second piston rod 95, so as to separate the second piston rod 95 from the first limiting groove 5.

[0037] The elastic locking device 10 includes a sliding sleeve 101 connected to the connecting hole 11. A sliding rod 102 is slidably disposed inside the sliding sleeve 101. A locking rod 104 is connected to the top end of the sliding rod 102. The locking rod 104 is disposed inside the piston limiting device 9. A magnetic limiting button 103 is connected to the bottom end of the sliding rod 102.

[0038] A magnetic limit button 103 is located inside the connecting hole 11. A third elastic component 105 is sleeved on the slide rod 102 and connected to the outside of the slide sleeve 101. A locking rod 104 passes through and is slidably connected to the support frame 6. By setting the slide sleeve 101 and the slide rod 102, the slide sleeve 101 guides the movement of the slide rod 102 and the locking rod 104, ensuring that the locking rod 104 can move smoothly and stably into the second limiting groove 97. By setting the locking rod 104 and the second limiting groove 97... The locking lever 104 limits the second limiting groove 97 and the second piston rod 95 in the horizontal direction to prevent the second piston rod 95 from separating from the first limiting groove 5 at will. By setting a magnetic limiting button 103, the movement of the magnetic limiting button 103 can be controlled by an external magnet to avoid accidental operation of the movement control of the slide rod 102. By setting a third elastic component 105, an upward elastic force can be applied to the locking lever 104 to ensure that the locking lever 104 can move upward smoothly and stably contact the second limiting groove 97.

[0039] The elastic support device 13 includes a guide sleeve 131, which is connected through the outside of the mounting cylinder 12. A guide rod 132 is slidably connected inside the guide sleeve 131. A movable block 133 is connected to one end of the guide rod 132 outside the mounting cylinder 12. A connecting groove 134 is provided on the outside of the movable block 133, and a rubber limiting ring 14 is disposed in the connecting groove 134. A movable plate 135 is connected to one end of the guide rod 132 inside the mounting cylinder 12. A fourth elastic component 136 is provided on the outer sleeve of the guide rod 132 and is connected to the guide sleeve 131 and the movable plate 135. Two fifth elastic components 137 are connected to the outside of the movable plate 135. The other end is connected to a limiting support plate 138. By setting a guide sleeve 131 and a guide rod 132, the guide rod 132 can move along the guide sleeve 131 to a certain extent. By setting a fourth elastic component 136, the fourth elastic component 136 applies elastic force to the moving plate 135. After the rubber limiting ring 14 separates from the moving block 133, the moving plate 135 is controlled to move away from the hydraulic oil pipe. By setting a fifth elastic component 137 and a limiting support plate 138, the fifth elastic component 137 applies elastic force to the limiting support plate 138, clamping it on the surface of the hydraulic oil pipe, buffering and protecting the hydraulic oil pipe from shaking, and reducing damage caused by friction.

[0040] A method for using a swing-type connecting mechanism for a CNC shearing machine cylinder, the method comprising the following steps:

[0041] The hydraulic oil pipe is directly connected to the cylinder assembly 4 through the mounting cylinder 12. Then, the cylinder assembly 4 is placed into the mounting frame 1 from the bottom. As the bottom plate 3 moves upward, it presses the contact plate 75 to move. At this time, the contact plate 75 controls the first piston plate 72 to move upward through the first piston rod 74. The first piston plate 72 transfers the gas in the piston frame 71 to the piston cylinder 91 through the air pipe 8. The increased air pressure in the piston cylinder 91 smoothly controls the movement of the second piston plate 93. At this time, the second piston plate 93 drives the second piston rod 95 to move and press against the surface of the cylinder assembly 4. The cylinder assembly 4 continues to move upward. At this time, the clamping rod 104 overlaps the surface of the second piston rod 95.

[0042] When the base plate 3 contacts the mounting frame 1, the position of the first limiting groove 5 corresponds to the second piston rod 95. The second piston rod 95 is squeezed into the first limiting groove 5 by air pressure. The movement of the second piston rod 95 drives the second limiting groove 97 to the position of the corresponding locking rod 104. The third elastic component 105 drives the locking rod 104 upward into the second limiting groove 97, completing the limiting of the cylinder assembly 4. The gas in the piston cylinder 91 is continuously discharged through the air hole 92 and returns to atmospheric pressure. At this time, the sliding rubber limiting ring 14 moves close to the mounting frame 1. At this time, the rubber limiting ring 14 squeezes the moving block 133 to move. The moving block 133 controls the movement of the moving plate 135 and the limiting support plate 138 through the guide rod 132. The limiting support plate 138 is clamped on the surface of the hydraulic oil pipe.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0045] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A swing-type connecting mechanism for a CNC shearing machine cylinder, comprising a mounting frame (1), characterized in that: An assembly frame (2) is connected to one side of the mounting frame (1). A base plate (3) overlaps under the mounting frame (1). A hydraulic cylinder assembly (4) is connected to the base plate (3). The hydraulic cylinder assembly (4) is connected through the mounting frame (1). A piston control device (7) and a support frame (6) are connected inside the mounting frame (1). An air pipe (8) is connected to the outside of the piston control device (7). The other end of the air pipe (8) is connected to a piston limiting device (9). The piston limiting device (9) is connected inside the support frame (6). The position of the hydraulic cylinder assembly (4) corresponds to the position of the piston limiting device (9). A first limiting groove (5) is provided, and the piston limiting device (9) is provided in the first limiting groove (5). An elastic snap-fit ​​device (10) is provided in the piston limiting device (9). The elastic snap-fit ​​device (10) is slidably provided under the support frame (6). A connecting hole (11) is provided on the bottom plate (3). The elastic snap-fit ​​device (10) is provided in the connecting hole (11). An installation cylinder (12) is connected through one side of the mounting frame (1). An elastic support device (13) is connected through the installation cylinder (12). A rubber limiting ring (14) is provided outside the elastic support device (13). The piston control device (7) includes a piston frame (71), which is connected to the mounting frame (1). A first piston plate (72) is slidably disposed in the piston frame (71). A first piston rod (74) is connected to the bottom of the first piston plate (72). The first piston rod (74) is connected through the bottom of the piston frame (71). One end of the first piston rod (74) located outside the piston frame (71) is connected to a contact plate (75). The contact plate (75) is connected to the bottom plate (3). A first elastic component (73) is connected to the first piston plate (72). The other end of the first elastic component (73) is connected to the piston frame (71). The piston frame (71) is connected to the air pipe (8). The connection position between the air pipe (8) and the piston frame (71) is located on the upper side of the first piston plate (72). The piston limiting device (9) includes a piston cylinder (91), which is connected inside the support frame (6). A second piston plate (93) is slidably connected inside the piston cylinder (91). A second piston rod (95) is connected to the side of the second piston plate (93) near the cylinder assembly (4). A connecting sleeve (96) is slidably provided outside the second piston rod (95). The connecting sleeve (96) is connected through the piston cylinder (91). A second limiting groove (97) is provided under the second piston rod (95). 5) The elastic snap-fit ​​device (10) is located in the first limiting groove (5) and the second limiting groove (97). The second elastic component (94) is connected to one side of the second piston plate (93). The second elastic component (94) is connected to the piston cylinder (91). The piston cylinder (91) is connected to the air pipe (8). The connection position of the air pipe (8) and the piston cylinder (91) is located on the side of the second piston plate (93) away from the oil cylinder assembly (4). An air hole (92) is opened on the piston cylinder (91) at the position corresponding to the air pipe (8).

2. The swing-type connecting mechanism of the CNC shearing machine cylinder according to claim 1, characterized in that: The elastic snap-fit ​​device (10) includes a sliding sleeve (101), which is connected to the connecting hole (11). A sliding rod (102) is slidably provided in the sliding sleeve (101). A locking rod (104) is connected to the top of the sliding rod (102). The locking rod (104) is located in the piston limiting device (9). A magnetic limiting button (103) is connected to the bottom of the sliding rod (102).

3. The swing-type connecting mechanism of the CNC shearing machine cylinder according to claim 2, characterized in that: The magnetic limit button (103) is located inside the connection hole (11), the slide rod (102) is covered with a third elastic component (105), the third elastic component (105) is connected to the outside of the slide sleeve (101), and the locking rod (104) is slidably connected to the support frame (6).

4. The swing-type connecting mechanism of the CNC shearing machine cylinder according to claim 1, characterized in that: The elastic support device (13) includes a guide sleeve (131), which is connected through the outside of the mounting cylinder (12). A guide rod (132) is slidably connected inside the guide sleeve (131). A moving block (133) is connected to one end of the guide rod (132) outside the mounting cylinder (12). A connecting groove (134) is provided on the outside of the moving block (133). A rubber limiting ring (14) is provided in the connecting groove (134). A moving plate (135) is connected to one end of the guide rod (132) inside the mounting cylinder (12). A fourth elastic component (136) connected to the guide sleeve (131) and the moving plate (135) is provided on the outer sleeve of the guide rod (132). Two fifth elastic components (137) are connected to the outside of the moving plate (135). The other end of the fifth elastic component (137) is connected to a limiting support plate (138).

5. A method of using a swing-type connecting mechanism for a CNC shearing machine cylinder, as described in claims 1-4, characterized in that... The method of use includes the following steps: The hydraulic oil pipe is directly connected to the cylinder assembly (4) through the mounting cylinder (12). Then the cylinder assembly (4) is placed into the mounting frame (1) from the bottom. The bottom plate (3) moves upward while pressing the contact plate (75) to move. At this time, the contact plate (75) controls the first piston plate (72) to move upward through the first piston rod (74). The first piston plate (72) transfers the gas in the piston frame (71) to the piston cylinder (91) through the air pipe (8). The increased air pressure in the piston cylinder (91) smoothly controls the second piston plate (93) to move. At this time, the second piston plate (93) drives the second piston rod (95) to move and press against the surface of the cylinder assembly (4). The cylinder assembly (4) continues to move upward. At this time, the clamping rod (104) overlaps the surface of the second piston rod (95) upward. When the base plate (3) contacts the mounting frame (1), the position of the first limiting groove (5) corresponds to the second piston rod (95). The second piston rod (95) is squeezed into the first limiting groove (5) by air pressure. The movement of the second piston rod (95) drives the second limiting groove (97) to the position of the corresponding locking rod (104). The third elastic component (105) drives the locking rod (104) upward into the second limiting groove (97) to complete the limiting of the cylinder assembly (4). The gas in the piston cylinder (91) is continuously discharged through the air hole (92) and returns to atmospheric pressure. At this time, the sliding rubber limiting ring (14) moves close to the mounting frame (1). At this time, the rubber limiting ring (14) squeezes the moving block (133) to move. The moving block (133) controls the moving plate (135) and the limiting support plate (138) to move through the guide rod (132). The limiting support plate (138) is clamped on the surface of the hydraulic oil pipe.

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