Hydraulic equipment with buffering function for machining mining machine parts

Abstract

The invention discloses hydraulic equipment with a buffering function for mining machine part machining, and relates to the technical field of hydraulic pressure for mining machine part machining. The hydraulic equipment comprises a working plate, supporting legs are fixedly connected to the lower end face of the working plate, a containing table is further fixedly connected to the upper end face of the working plate, and a shell is further fixedly connected to the upper end face of the working plate; the buffering assembly is arranged in the shell and used for buffering the punching force borne when a part is punched, the resistance increasing assembly is arranged in the shell and used for increasing the resistance during buffering, and the resistance self-changing assembly is also arranged in the shell and used for automatically changing the resistance according to the buffering force in the punching process. And the safety protection assembly is arranged on the shell and used for protecting hand safety of workers in the punching process, and the problems that a punching buffering device in an existing hydraulic device is generally unchanged in buffering resistance, damping cannot be changed in real time in the punching process to adapt to different punching time periods, and then the buffering effect is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulics for processing mining machinery parts, in particular to hydraulic equipment with a buffering function for processing mining machinery parts. Background Art

[0002] Hydraulic technology refers to the process of applying pressure to cause plastic deformation of metal sheets in the mold cavity. In the prior art, when the stamping mold is in use, the conveyor table conveys the unprocessed strip metal parts to the bottom of the punch head, and then the punch head punches the unprocessed strip metal parts, so that the required metal workpieces are punched out of the unprocessed strip metal parts to obtain parts of the required shape and size.

[0003] A hydraulic equipment with buffer function for processing mining machinery parts effectively improves the processing accuracy and stability of the equipment through the design and application of the buffer device, and protects the safe operation of the equipment and the mold. At the same time, the equipment has a simple structure, is easy to maintain, and has strong adaptability, and can be widely used in the processing field of mining machinery parts.

[0004] During the stamping process, the more it touches the inside of the part, the slower the hydraulic pressure needs to be, so as to reduce the stamping error and increase the stamping pass rate. At this time, a buffer device is needed to assist in the stamping of the parts. The stamping buffer device in the existing hydraulic device usually has a constant buffer resistance and cannot change the damping in real time during the stamping process to adapt to different stamping time periods, which affects the buffering effect. Summary of the invention

[0005] The purpose of the present invention is to provide a hydraulic device for processing mining machinery parts with a buffering function, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic device for processing mining machinery parts with a buffering function, comprising a working plate, the lower end surface of the working plate is fixedly connected with a leg, the upper end surface of the working plate is also fixedly connected with a placing table, the upper end surface of the working plate is also fixedly connected with a shell, the upper end surface of the shell is also provided with a control center, and a stamping assembly is provided inside the shell, the hydraulic device for processing mining machinery parts also includes: A buffer assembly, the buffer assembly is arranged in the housing and is used to buffer the punching force applied when the parts are punched; A resistance increasing component, which is arranged in the housing and linked with the buffer component to increase the resistance during buffering, thereby making the buffer component more stable during operation; A resistance self-changing component, which is also arranged in the housing and is used to automatically change the size of the resistance according to the size of the buffer force during the stamping process, so as to adapt to different stamping processes; A safety protection component is arranged on the shell and is used to protect the hands of workers during the stamping process.

[0007] Optionally, the buffer component includes: A sliding frame, wherein the outer side surface of the sliding frame is fixedly connected to the side surface of the shell, the inner wall of the sliding frame is slidably connected with a sliding block 1, the surface of the sliding block 1 is fixedly connected with a stamping block, the lower end surface of the stamping block is fixedly connected with a stamping module, the upper end surface of the stamping block is fixedly connected with a sliding column, the upper end surface of the sliding column is fixedly connected with an arc block, the lower end surface of the arc block is fixedly connected with a spring 1, and the lower end surface of the spring 1 is fixedly connected to the upper end surface of the stamping block.

[0008] Optionally, the stamping assembly includes: A connecting plate 1, wherein a side surface of the connecting plate 1 is fixedly connected to the arc surface of the arc block, a sliding block 2 is fixedly connected to the side surface of the connecting plate 1, a surface of the sliding block 2 is slidably connected to the inner wall of the sliding frame, a sliding rod 1 is fixedly connected to the upper end surface of the sliding block 2, a surface of the sliding rod 1 slides through the inner upper surface of the outer shell, and an electric push rod is fixedly connected to the upper end surface of the sliding rod 1, and an outer surface of the electric push rod is fixedly connected to the outer surface of the outer shell.

[0009] Optionally, the resistance increasing component includes: A fixed block 1, the lower end face of the fixed block 1 is fixedly connected to the upper end face of the stamping block, a curved rod 1 is hinged on the surface of the fixed block 1, an annular slider is hinged on the upper end face of the curved rod 1, a fixed rod 1 is slidably connected to the inner wall of the annular slider, the end face of the fixed rod 1 is fixedly connected to the end face of the arc block, two annular sliders are provided, a spring 2 is fixedly connected to the end face of the annular slider, and the other end of the spring 2 is fixedly connected to the end face of another annular slider.

[0010] Optionally, the resistance increasing component further includes: A connecting rod 1, the end face of which is fixedly connected to the outer surface of the annular slider, the surface of which is fixedly connected to a piston, the surface of which is slidably connected to a container 1, the outer surface of which is fixedly connected to the upper end face of the connecting plate 1, the bottom end face of which is fixedly connected to a fixed tube 1, the other end of which is fixedly connected to one end of the resistance self-changing component.

[0011] Optionally, the resistance increasing component further includes: A fixed tube 2, the end face of which is rotatably connected to the surface of the other end of the self-changing resistance component, the end face of the fixed tube 2 away from one end of the self-changing resistance component is fixedly connected to a container 2, the outer surface of the container 2 is also fixedly connected to the upper end face of the connecting plate 1, the surface of the container 2 is also fixedly connected to a pipe 1, and the upper end of the pipe 1 is slidably connected to a blocking cover.

[0012] Optionally, the resistance self-changing component includes: A second connecting rod, the end face of the second connecting rod is fixedly connected to the surface of the first connecting rod, the end face of the second connecting rod away from the first connecting rod is fixedly connected with a spur tooth row, the tooth surface of the spur tooth row is meshingly connected with a tooth ring, the inner wall of the tooth ring is fixedly connected with a rotating cover, the end face of the rotating cover at the center of the circle is provided with a through notch, the groove wall of the notch is rotatably connected to the end face of the second fixed tube, the end face of the rotating cover is provided with a through strip groove, the groove wall of the strip groove is slidably connected with a second sliding column, and the surface of the second sliding column is fixedly connected with a shielding plate; A fixed plate 1, wherein a through slot is provided on the end face at the center of the fixed plate 1, and the slot wall of the slot is fixedly connected to the end surface of the fixed tube 1; a hexagonal slot is provided on the end face of the fixed plate 1 away from the fixed tube 1, and the slot wall of the hexagonal slot is slidably connected to the end surface of the sliding column 2 away from the rotating cover, and the surface of the fixed plate 1 is slidably connected to the inner wall of the rotating cover.

[0013] Optionally, the security protection component includes: A fixed block 2, the surface of which is fixedly connected to the side of the stamping block, a curved rod 2 is hinged on the surface of the fixed block 2, a protective plate is hinged on the other end of the curved rod 2, a fixed plate 2 is hinged on the end of the protective plate, and the end face of the fixed plate 2 is fixedly connected to the outer surface of the sliding frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes the deformation of spring 1 to achieve the purpose of buffering, thereby further preventing the stamping module from directly contacting the stamping part, which may cause damage to the stamping part or the stamping module.

[0015] 2. The present invention achieves the purpose of increasing the buffering resistance by utilizing the elastic force of the second spring and the resistance to the flow of the extracted liquid, thereby reducing the instability of the spring when the spring is used for buffering, thereby further improving the buffering stability of the buffer device during the stamping process.

[0016] 3. The present invention changes the resistance to liquid flow by changing the diameter of the channel between fixed tube one and fixed tube two, so as to achieve the purpose of automatically changing the size of the resistance according to the size of the buffering force during the stamping process, thereby adapting to the different positions of the stamping module on the stamping part. When stamping into the inside of the stamping part, the buffer device requires a greater force, the buffering effect is more stable, and the buffering process is more stable. When recovery is required, it can be recovered faster, thereby improving the accuracy of the stamping device in stamping stamping parts.

[0017] Fourth, the present invention drives the stamping block to move downward by the electric push rod, and then drives the second curved rod to move, so that the protection plate rotates around the hinge of the second fixed plate as the axis, thereby pushing away the objects around the stamping part, thereby improving the safety of the hydraulic device during the stamping process and reducing the possibility of accidents during the working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the structure of the present invention; Figure 2 It is an enlarged view of the structure of the safety protection component in the present invention; Figure 3 It is an enlarged view of the position structure of the punching block in the present invention; Figure 4 A top view of the resistance-increasing component structure of the present invention; Figure 5 A cross-sectional view of the internal structure of a container in the present invention; Figure 6 is an enlarged view of the resistance self-changing component in the present invention; Figure 7 For the present invention Figure 6 A magnified view of the structure at inner A; Figure 8 It is an enlarged view of the shielding plate structure in the present invention; Fig. 9 It is an enlarged view of the hexagonal groove position structure in the present invention.

[0019] In the figure: 1, leg; 2, placing table; 3, stamping module; 4, stamping block; 5, electric push rod; 6, control center; 7, protection plate; 8, shell; 9, sliding frame; 10, working plate; 11, fixed block 2; 12, curved rod 2; 13, fixed plate 2; 14, fixed rod 1; 15, connecting plate 1; 16, sliding block 2; 17, sliding block 1; 18, arc block; 19, spring 1; 20, sliding column; 21, fixed block 1; 22 1. A curved rod; 23. An annular slider; 24. A spring; 25. A connecting rod; 26. A piston; 27. A container; 28. A fixed tube; 29. ​​A fixed tube; 30. A blocking cover; 31. A container; 32. A pipe; 33. A connecting rod; 34. A straight tooth row; 35. A gear ring; 36. A sliding column; 37. A rotating cover; 38. A strip groove; 39. A fixed disk; 40. A hexagonal groove; 41. A baffle; 42. A sliding rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] For example, see Figures 1 to 9 The present embodiment provides a hydraulic device for processing mining machinery parts with a buffering function, including a working plate 10, a leg 1 is fixedly connected to the lower end surface of the working plate 10, a placing table 2 is fixedly connected to the upper end surface of the working plate 10, a housing 8 is fixedly connected to the upper end surface of the working plate 10, a control center 6 is also arranged on the upper end surface of the housing 8, and a stamping assembly is arranged inside the housing 8, and the stamping assembly includes: A connecting plate 15, the side surface of the connecting plate 15 is fixedly connected to the arc surface of the arc block 18, the side surface of the connecting plate 15 is fixedly connected to a sliding block 2 16, the surface of the sliding block 2 16 is slidably connected to the inner wall of the sliding frame 9, the upper end surface of the sliding block 2 16 is fixedly connected to a sliding rod 1 42, the surface of the sliding rod 1 42 slides through the inner upper surface of the housing 8, and the upper end surface of the sliding rod 1 42 is fixedly connected to an electric push rod 5, and the outer surface of the electric push rod 5 is fixedly connected to the outer surface of the housing 8; The hydraulic device further comprises a buffer assembly, which is arranged in the housing 8 and comprises: The sliding frame 9 has its outer side surface fixedly connected to the side surface of the outer shell 8, the inner wall of the sliding frame 9 is slidably connected with a sliding block 17, the surface of the sliding block 17 is fixedly connected with a punching block 4, the lower end surface of the punching block 4 is fixedly connected with a punching module 3, the upper end surface of the punching block 4 is fixedly connected with a sliding column 20, the upper end surface of the sliding column 20 is fixedly connected with an arc block 18, the lower end surface of the arc block 18 is fixedly connected with a spring 19, and the lower end surface of the spring 19 is fixedly connected to the upper end surface of the punching block 4.

[0022] In this embodiment, when using the hydraulic device, the stamping part to be stamped is placed on the placement table 2, and then the electric push rod 5 is started to drive the sliding rod 1 42 to move downward, and the sliding rod 1 42 moves downward, thereby pushing the sliding block 2 16 to move downward, and driving the stamping block 4 to move downward. When the stamping block 4 moves downward and drives the stamping module 3 to contact the stamping part, the electric push rod 5 continues to drive the sliding block 2 16 to move downward, thereby squeezing the spring 19 to achieve a buffering effect; The setting of the buffer assembly utilizes the deformation of the spring 19 to achieve the purpose of buffering, thereby further preventing the stamping module 3 from directly contacting the stamping part, which may cause damage to the stamping part or the stamping module 3.

[0023] It is worth noting that, in this embodiment, the hydraulic device further includes a resistance increasing component, which is disposed in the housing 8 and includes: A fixed block 21, the lower end face of the fixed block 21 is fixedly connected to the upper end face of the stamping block 4, a curved rod 22 is hingedly connected to the surface of the fixed block 21, an annular slider 23 is hingedly connected to the upper end face of the curved rod 22, a fixed rod 14 is slidably connected to the inner wall of the annular slider 23, an end face of the fixed rod 14 is fixedly connected to the end face of the arc block 18, two annular sliders 23 are provided, a spring 24 is fixedly connected to the end face of the annular slider 23, and the other end of the spring 24 is fixedly connected to the end face of another annular slider 23; A connecting rod 25, the end surface of which is fixedly connected to the outer surface of the annular slider 23, a piston 26 is fixedly connected to the surface of the connecting rod 25, a container 27 is slidably connected to the surface of the piston 26, an outer surface of the container 27 is fixedly connected to the upper end surface of the connecting plate 15, a fixed pipe 28 is fixedly connected to the bottom end surface of the container 27, and the other end of the fixed pipe 28 is fixedly connected to one end of the resistance self-changing component; Fixed tube 29, the end face of fixed tube 29 is rotatably connected to the surface of the other end of the resistance self-changing component, the end face of fixed tube 29 away from one end of the resistance self-changing component is fixedly connected to container 2 31, the outer surface of container 2 31 is also fixedly connected to the upper end face of connecting plate 1 15, the surface of container 2 31 is also fixedly connected to pipe 1 32, the upper end of pipe 1 32 is slidably connected to blocking cover 30.

[0024] In this embodiment, the distance between the arc block 18 and the punching block 4 is gradually reduced, so that the bent rod 1 22 is deflected, and then the two annular sliders 23 are pushed closer to each other. The annular sliders 23 not only squeeze the spring 24, but also pull the piston 26 to move in the container 1 27, so that the liquid in the container 2 31 is drawn into the container 1 27 through the fixed pipe 29 and the fixed pipe 1 28, so as to achieve the purpose of increasing the buffer resistance by utilizing the elastic force of the spring 24 and the resistance of the liquid flow. The setting of the resistance increasing component achieves the purpose of increasing the buffering resistance by utilizing the elastic force of the spring 24 and the resistance of the drawn liquid flow, thereby reducing the instability of the spring when the spring is used for buffering, thereby further improving the buffering stability of the buffering device during the stamping process.

[0025] Embodiment 2, based on the above embodiment: See also Figure 6 , Figure 7 , Figure 8 and Fig. 9 In this embodiment, the hydraulic device includes a resistance self-changing component, which is also arranged in the housing 8. The resistance self-changing component includes: A second connecting rod 33, the end face of the second connecting rod 33 is fixedly connected to the surface of the first connecting rod 25, the end face of the second connecting rod 33 away from the first connecting rod 25 is fixedly connected with a straight tooth row 34, the tooth surface of the straight tooth row 34 is meshedly connected with a tooth ring 35, the inner wall of the tooth ring 35 is fixedly connected with a rotating cover 37, the end face of the rotating cover 37 at the center of the circle is provided with a through notch, the groove wall of the notch is rotatably connected to the end face of the second fixed tube 29, the end face of the rotating cover 37 is provided with a through strip groove 38, the groove wall of the strip groove 38 is slidably connected with a second sliding column 36, and the surface of the second sliding column 36 is fixedly connected with a shielding plate 41; A fixed plate 39 is provided with a through slot at the center of the end surface of the fixed plate 39, and the slot wall is fixedly connected to the end surface of the fixed tube 28. A hexagonal slot 40 is provided on the end surface of the fixed plate 39 away from the fixed tube 28, and the slot wall of the hexagonal slot 40 is slidably connected to the end surface of the sliding column 2 36 away from the rotating cover 37, and the surface of the fixed plate 39 is slidably connected to the inner wall of the rotating cover 37.

[0026] In this embodiment, the two annular sliders 23 are brought close to each other, thereby driving the second connecting rod 33 to move, so that the tooth ring 35 is rotated through the straight tooth row 34, thereby driving the rotating cover 37 to rotate. The rotation of the rotating cover 37 can drive the second sliding column 36 to slide in the strip groove 38 and the hexagonal groove 40, thereby driving the six baffles 41 to move, thereby reducing the diameter of the channel between the fixed tube 1 28 and the fixed tube 2 29, indirectly increasing the resistance to liquid flow, thereby increasing the resistance during buffering. After the stamping is completed, the spring 19 and the spring 24 are restored to drive the second connecting rod 33 and the straight tooth row 34 to restore, so that the tooth ring 35 is reversed, and the six baffles 41 are driven to move in the same way, thereby increasing the diameter of the channel between the fixed tube 1 28 and the fixed tube 2 29 to reduce the resistance to liquid flow and facilitate the restoration of the spring 19 and the spring 24. The setting of the resistance self-changing component changes the diameter of the channel between the fixed tube 1 28 and the fixed tube 2 29, thereby changing the resistance of the liquid flow, so as to achieve the purpose of automatically changing the size of the resistance according to the size of the buffering force during the stamping process, so as to adapt to the different positions of the stamping module 3 on the stamping part. When stamping into the inside of the stamping part, the force required by the buffer device is greater, the buffering effect is more stable, and the buffering process is also made more stable. When recovery is required, it can be recovered faster, thereby improving the accuracy of the stamping device in stamping stamping parts.

[0027] Embodiment 3, based on the above embodiment: See also Figure 2 In this embodiment, the hydraulic device further includes a safety protection component, which is disposed on the housing 8 and includes: A fixed block 11, the surface of which is fixedly connected to the side of the stamping block 4, a curved rod 12 is hinged on the surface of the fixed block 11, the other end of which is hinged to a protective plate 7, a fixed plate 13 is hinged on the end of the protective plate 7, and the end face of the fixed plate 13 is fixedly connected to the outer surface of the sliding frame 9.

[0028] In this embodiment, the electric push rod 5 drives the stamping block 4 to move downward, thereby driving the bent rod 12 to move, and the protection plate 7 is rotated around the hinge of the fixed plate 13, so that the objects around the stamping part are pushed away, thereby improving the safety of the hydraulic device during the stamping process and reducing the possibility of accidents during the working process.

[0029] Working principle: When the hydraulic equipment with buffer function for processing mining machinery parts is used, the following steps are performed: S1: Place the stamping part to be stamped on the placement table 2, and then start the electric push rod 5 to drive the sliding rod 42 to move downward, thereby driving the stamping block 4 to move downward; S2: The punch block 4 moves downward to drive the second curved rod 12 to move, and the protection plate 7 rotates around the hinge of the second fixed plate 13, thereby pushing away the objects around the punching part; S3: Then the punching block 4 moves downward until the punching module 3 contacts the surface of the punched part, and then the distance between the arc block 18 and the punching block 4 is gradually reduced to use the spring 19 for buffering; S4: During the buffering process, the bent rod 1 22 is also driven to deflect, thereby pushing the annular sliders 23 to approach each other and compressing the spring 2 24, and driving the piston 26 to move in the container 1 27, thereby drawing the liquid in the container 2 31 into the container 1 27 through the fixed pipe 2 29 and the fixed pipe 1 28; S5: During the movement of the annular slider 23, the diameter of the channel between the fixed tube 1 28 and the fixed tube 2 29 will be adjusted according to the distance that the stamping module 3 enters the interior of the stamping part, thereby adjusting the resistance during buffering, thereby making the movement inside the stamping part more stable and improving the accuracy of stamping.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic device for processing mining machinery parts with a buffering function, comprising a working plate (10), characterized in that: The lower end surface of the working plate (10) is fixedly connected to a support leg (1), the upper end surface of the working plate (10) is also fixedly connected to a placement table (2), the upper end surface of the working plate (10) is also fixedly connected to a housing (8), the upper end surface of the housing (8) is also provided with a control center (6), and a stamping assembly is provided inside the housing (8), and the hydraulic equipment further comprises: A buffer component, the buffer component being arranged in the housing (8); A resistance increasing component, the resistance increasing component is arranged in the housing (8) and is drivingly connected to the buffer component, and is used to increase resistance during buffering; A resistance self-changing component, which is also arranged in the housing (8) and is used to automatically change the magnitude of the resistance according to the magnitude of the buffer force during the stamping process; The buffer assembly comprises a sliding frame (9), the outer side surface of the sliding frame (9) is fixedly connected to the side surface of the shell (8), the inner wall of the sliding frame (9) is slidably connected to a sliding block 1 (17), the surface of the sliding block 1 (17) is fixedly connected to a punching block (4), the lower end surface of the punching block (4) is fixedly connected to a punching module (3), the upper end surface of the punching block (4) is fixedly connected to a sliding column (20), the upper end surface of the sliding column (20) is fixedly connected to an arc block (18), the lower end surface of the arc block (18) is fixedly connected to a spring 1 (19), and the lower end surface of the spring 1 (19) is fixedly connected to the upper end surface of the punching block (4).

2. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 1, characterized in that: The hydraulic equipment further comprises a safety protection component, which is arranged on the housing (8) and is used to protect the hands of workers during the stamping process.

3. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 2, characterized in that: The stamping assembly comprises: A connecting plate (15), the side surface of the connecting plate (15) being fixedly connected to the arc surface of the arc block (18), the side surface of the connecting plate (15) being fixedly connected to a sliding block (16), the surface of the sliding block (16) being slidably connected to the inner wall of the sliding frame (9), the upper end surface of the sliding block (16) being fixedly connected to a sliding rod (42), the surface of the sliding rod (42) slidingly passing through the inner upper surface of the outer shell (8), and the upper end surface of the sliding rod (42) being fixedly connected to an electric push rod (5), the outer surface of the electric push rod (5) being fixedly connected to the outer surface of the outer shell (8).

4. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 3 is characterized in that: The resistance increasing component comprises: A fixed block (21), the lower end surface of the fixed block (21) being fixedly connected to the upper end surface of the punching block (4), a curved rod (22) being hingedly connected to the surface of the fixed block (21), an annular slider (23) being hingedly connected to the upper end surface of the curved rod (22), a fixed rod (14) being slidably connected to the inner wall of the annular slider (23), an end surface of the fixed rod (14) being fixedly connected to the end surface of the arc block (18), two annular sliders (23) being provided, a spring (24) being fixedly connected to the end surface of the annular slider (23), the other end of the spring (24) being fixedly connected to the end surface of another annular slider (23).

5. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 4, characterized in that: The resistance increasing component also includes: A connecting rod (25), the end surface of the connecting rod (25) being fixedly connected to the outer surface of the annular slider (23), the surface of the connecting rod (25) being fixedly connected to a piston (26), the surface of the piston (26) being slidably connected to a container (27), the outer surface of the container (27) being fixedly connected to the upper end surface of the connecting plate (15), the bottom end surface of the container (27) being fixedly connected to a fixed tube (28), the other end of the fixed tube (28) being fixedly connected to one end of the resistance self-changing component; A second fixed tube (29), the end surface of the second fixed tube (29) being rotatably connected to the surface of the other end of the self-changing resistance component, the end surface of the second fixed tube (29) away from the end of the self-changing resistance component being fixedly connected to a second container (31), the outer surface of the second container (31) being also fixedly connected to the upper end surface of the connecting plate (15), the surface of the second container (31) being also fixedly connected to a first pipe (32), the upper end of the first pipe (32) being slidably connected to a blocking cover (30); The resistance self-changing component comprises: A second connecting rod (33), the end face of the second connecting rod (33) being fixedly connected to the surface of the first connecting rod (25), the end face of the second connecting rod (33) away from the first connecting rod (25) being fixedly connected to a straight tooth row (34), the tooth surface of the straight tooth row (34) being meshingly connected to a tooth ring (35), the inner wall of the tooth ring (35) being fixedly connected to a rotating cover (37), the end face of the rotating cover (37) being provided with a through slot at the center of the circle, the slot wall of the slot being rotatably connected to the end face of the second fixed tube (29), the end face of the rotating cover (37) being provided with a through strip groove (38), the slot wall of the strip groove (38) being slidably connected to a second sliding column (36), the surface of the second sliding column (36) being fixedly connected to a shielding plate (41).

6. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 5, characterized in that: The resistance self-changing component also includes a fixed disk (39), the end surface of which is provided with a through slot at the center of the circle, and the slot wall of the slot is fixedly connected to the end surface of the fixed tube (28).

7. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 6, characterized in that: A hexagonal groove (40) is formed on the end surface of the fixed plate 1 (39) facing away from the fixed tube 1 (28); the groove wall of the hexagonal groove (40) is slidably connected to the end surface of the sliding column 2 (36) away from the rotating cover (37), and the surface of the fixed plate 1 (39) is slidably connected to the inner wall of the rotating cover (37).

8. The hydraulic equipment with buffer function for processing mining machinery parts according to claim 2, characterized in that: The safety protection component comprises a second fixing block (11), the surface of which is fixedly connected to the side surface of the punching block (4), a second curved rod (12) is hingedly connected to the surface of the second fixing block (11), the other end of which is hingedly connected to a protection plate (7), the end of which is hingedly connected to a second fixing plate (13), and the end surface of the second fixing plate (13) is fixedly connected to the outer surface of the sliding frame (9).

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