End processing device for cylinder barrel machining of hydraulic oil cylinder

Abstract

The utility model discloses an end processing device for processing a cylinder barrel of a hydraulic oil cylinder, which can simultaneously polish two ends of the cylinder barrel of the oil cylinder, is high in working efficiency, can collect scraps generated in the polishing process, is convenient to clean, can limit the processing depth of the end part of the cylinder barrel, ensures the polishing amount of the two ends of the cylinder barrel, and improves the working efficiency of the hydraulic oil cylinder. And material waste caused by excessive grinding is avoided. Comprising a workbench, a positioning assembly and two polishing assemblies are arranged on the workbench, the positioning assembly is used for fixing a to-be-machined cylinder barrel, the two polishing assemblies are located on the two sides of the positioning assembly respectively and can move towards each other or back to back, each polishing assembly comprises a polishing base, and the polishing bases are arranged on the workbench in a sliding mode; the grinding assembly comprises a grinding base, a sliding column is slidably connected to the grinding base, a rotatable grinding plate is arranged on the sliding column, a collecting bin is fixedly installed on the portion, below the grinding plate, of the grinding base, and the grinding assembly further comprises a limiting assembly used for limiting the grinding depth of the two ends of the cylinder barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinder processing, in particular to an end processing device for processing a cylinder barrel of a hydraulic oil cylinder. Background Art

[0002] The cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The hydraulic cylinder is basically composed of a cylinder barrel, a cylinder head, a cylinder bottom, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. In the entire hydraulic cylinder component, the cylinder barrel assembly is an important component, and its structure is complex and difficult to process. When processing the cylinder barrel, the seamless steel pipe is first cut according to the length required by the hydraulic cylinder stroke. There are a lot of burrs on the end of the cylinder barrel after cutting, which will affect the sealing of the connection between the cylinder barrel and the cylinder head and the cylinder bottom. Therefore, the end of the cylinder barrel needs to be processed to keep it smooth; this requires the use of an end processing device for cylinder barrel processing of a hydraulic cylinder to grind the end of the cylinder barrel.

[0003] For example, the Chinese patent with publication number CN217966238U discloses an end processing device for cylinder barrel processing of a hydraulic oil cylinder, including a machine base, the upper end of the machine base is slidably connected to a support platform through a shifting member, the upper end center of the support platform is rotatably connected to a rotating shaft through a bearing seat, the upper end of the rotating shaft is connected to a fixed seat, the upper end center of the fixed seat is connected to a bolt pipe clamp, the bolt pipe clamp is movably connected to the cylinder barrel, two locking components are symmetrically connected between the support platform and the fixed seat about the bolt pipe clamp, and a motor is also installed on one side of the upper end of the machine base through the machine. The utility model eliminates the need for multiple disassembly and assembly when grinding the two ends of the cylinder barrel, improves the convenience of the processing process of the two ends of the cylinder barrel, and by limiting the processing depth of the cylinder barrel end, it is avoided that the cylinder barrel end is excessively worn and caused to be scrapped.

[0004] However, this patent cannot grind both ends of the cylinder at the same time, and the work efficiency is low; at the same time, the grinding wheel will produce a lot of debris when grinding the end of the cylinder, and the grinding debris will fall into the shift groove on the machine base and on the telescopic rod of the cylinder, which is not conducive to cleaning by the staff, and will also affect the movement of the telescopic rod of the cylinder and the sliding of the support platform on the machine base. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the defects of the existing technical problems and provide an end processing device for cylinder barrel processing of a hydraulic cylinder, which can grind both ends of the cylinder barrel of the cylinder at the same time, with high working efficiency. The debris generated during the grinding process can be collected for easy cleaning. At the same time, the processing depth of the cylinder barrel end can be limited, thereby ensuring the grinding amount at both ends of the cylinder barrel and avoiding material waste caused by excessive grinding.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: an end processing device for cylinder barrel processing of a hydraulic cylinder, comprising a workbench, a positioning assembly and a grinding assembly are provided on the workbench, the positioning assembly is used to fix the cylinder barrel to be processed, two grinding assemblies are provided, the two grinding assemblies are respectively located on both sides of the positioning assembly, and the two grinding assemblies can move toward or away from each other, the grinding assembly comprises a grinding seat, the grinding seat is slidably arranged on the workbench, a sliding column is slidably connected to the grinding seat, a rotatable grinding plate is provided on the sliding column, a collection bin is fixedly installed on the grinding seat below the grinding plate, and the grinding assembly also includes a limit assembly for limiting the grinding depth at both ends of the cylinder barrel.

[0007] Furthermore, a driving motor is fixedly mounted on the sliding column, and the grinding plate is fixedly mounted on an output end of the driving motor.

[0008] Furthermore, the workbench is provided with a slide rail, and the bottom of the grinding seat is provided with a slide groove corresponding to the slide rail, so that the grinding seat can slide along the slide rail on the workbench.

[0009] Furthermore, the workbench is provided with a driving mechanism for driving the grinding seat to slide relative to the workbench, and the driving mechanism includes a transmission motor and a bidirectional screw rod. The bidirectional screw rod is rotatably mounted on the workbench, and the transmission motor is used to drive the bidirectional screw rod to rotate. The bidirectional screw rod is provided with two sections of threads with opposite rotation directions, and the two ends of the bidirectional screw rod are respectively threadedly connected to the two grinding seats.

[0010] Furthermore, the limit assembly includes a spring, a limit groove and a limit strip, the grinding seat is provided with a cavity for installing a sliding column, one end of the sliding column is slidably arranged in the cavity, the spring is fixedly installed between the end of the sliding column located in the cavity and the cavity wall, the limit strip is fixedly arranged on the outer surface of the end of the sliding column located outside the cavity, and the grinding seat is provided with a limit groove corresponding to the limit strip.

[0011] Furthermore, when the spring is in a normal state, the limiting strip is located outside the limiting groove.

[0012] Furthermore, the positioning assembly includes a positioning platform that can move up and down relative to the workbench, a support rod is fixedly installed on the positioning platform, a lower fixing seat is fixedly installed on the upper end of the support rod, and the upper surface of the lower fixing seat is an arc surface.

[0013] Furthermore, the positioning assembly also includes an upper fixing seat arranged above the lower fixing seat and corresponding to the lower fixing seat, the surface of the upper fixing seat close to the lower fixing seat is an arc surface, and the upper fixing seat can slide up and down relative to the lower fixing seat.

[0014] Furthermore, a support frame is fixedly installed on the workbench, a driving cylinder is fixedly installed on the support frame, an output end of the driving cylinder is arranged toward the lower fixed seat, and the upper fixed seat is fixedly connected to the output end of the driving cylinder.

[0015] Furthermore, a lifting cylinder is fixedly provided on the workbench, and an output end of the lifting cylinder is fixedly connected to the bottom of the positioning platform.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. By setting two grinding assemblies on both sides of the cylinder barrel, both ends of the cylinder barrel of the oil cylinder can be polished at the same time, thereby improving work efficiency;

[0018] 2. A collection bin is set under the grinding plate so that the debris generated during the grinding process can be collected for easy cleaning;

[0019] 3. Limit the processing depth of the cylinder end to ensure the grinding amount at both ends of the cylinder and avoid material waste caused by excessive grinding;

[0020] 4. During the grinding process, the upper and lower fixing seats position and clamp the cylinder barrel of the oil cylinder to prevent the cylinder barrel from shifting during the grinding process and affecting the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the end processing device for cylinder barrel processing of the hydraulic oil cylinder of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the grinding assembly of the utility model;

[0023] Figure 3 It is a schematic diagram of the connection between the grinding seat and the sliding column of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the positioning component of the utility model.

[0025] Reference numerals: 1. workbench; 2. positioning assembly; 3. grinding assembly;

[0026] 11. Slide rail; 12. Driving mechanism; 121. Transmission motor; 122. Bidirectional screw rod;

[0027] 21. Positioning platform; 22. Support rod; 23. Lower fixing seat; 24. Upper fixing seat;

[0028] 25. Lifting cylinder; 26. Support frame; 27. Driving cylinder;

[0029] 31. grinding seat; 32. sliding column; 33. grinding plate; 34. collecting bin; 35. driving motor;

[0030] 36. Limiting assembly; 311. Cavity; 361. Spring; 362. Limiting groove; 363. Limiting strip. DETAILED DESCRIPTION

[0031] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0032] like Figure 1-4 As shown, in this embodiment, an end processing device for cylinder barrel processing of a hydraulic cylinder is provided, including a workbench 1, on which a positioning assembly 2 and a grinding assembly 3 are provided, and two grinding assemblies 3 are provided, and the two grinding assemblies 3 are respectively located on both sides of the positioning assembly 2, and the two grinding assemblies 3 can move toward or away from each other, and the positioning assembly 2 is used to fix the cylinder barrel to be processed.

[0033] like Figure 1-3 As shown, in this embodiment, the grinding assembly 3 includes a grinding seat 31, which is slidably arranged on the workbench 1. Specifically, a slide rail 11 is provided on the workbench, and a slide groove corresponding to the slide rail 11 is provided at the bottom of the grinding seat 31, so that the grinding seat 31 can slide along the slide rail 11 on the workbench 1.

[0034] like Figure 1-3 As shown, in this embodiment, a sliding column 32 is slidably connected to the grinding seat 31, and a rotatable grinding plate 33 is provided on the sliding column 32. A collecting bin 34 is fixedly installed on the grinding seat 31 below the grinding plate 33, and the upper end of the collecting bin 34 is open. When the grinding plate 33 grinds the two ends of the cylinder barrel of the oil cylinder, the generated debris will fall into the collecting bin 34 below, so as to avoid the debris flying around and making it inconvenient to clean.

[0035] Specifically, Figure 1-3As shown, a driving motor 35 is fixedly mounted on the sliding column 32, and a grinding plate 33 is fixedly mounted on the output end of the driving motor 35, so that the driving motor 35 can drive the grinding plate 33 to rotate, thereby grinding both ends of the cylinder barrel of the oil cylinder.

[0036] like Figure 1-3 As shown, in this embodiment, the grinding assembly 3 also includes a limiting assembly 36 for limiting the grinding depth at both ends of the cylinder barrel, and the limiting assembly 36 includes a spring 361, a limiting groove 362 and a limiting strip 363. Specifically, a cavity 311 for installing the sliding column 32 is opened on the grinding seat 31, and one end of the sliding column 32 is slidably arranged in the cavity 311. The spring 361 is fixedly installed between the end of the sliding column 32 located in the cavity 311 and the wall of the cavity 311. The limiting strip 363 is fixedly arranged on the outer surface of the end of the sliding column 32 located outside the cavity 311. A limiting groove 362 corresponding to the limiting strip 363 is opened on the grinding seat 31. When the spring 361 is in a normal state, the limiting strip 363 is located in the limiting groove 3 62, before grinding, adjust the positions of the two grinding seats 31 so that the two grinding plates 33 are respectively abutted against the two ends of the cylinder barrel, and the limit strip 363 is abutted against the limit groove 362. At this time, the spring 361 is compressed and the drive motor 35 is started, so that the drive motor 35 drives the grinding plate 33 to rotate, thereby grinding the two ends of the cylinder barrel of the oil cylinder. As the material at both ends of the cylinder barrel is continuously ground away, the force on the spring 361 gradually decreases, and the spring 361 gradually resets until the spring 361 returns to its original state. At this time, the position of the grinding plate 33 is fixed relative to the cylinder barrel, so that the grinding plate 33 cannot continue to grind the cylinder barrel, and then the processing depth of the cylinder barrel end is limited, thereby ensuring the grinding amount at both ends of the cylinder barrel and avoiding material waste caused by excessive grinding.

[0037] like Figure 1-3 As shown, in this embodiment, the workbench 1 is also provided with a driving mechanism 12 for driving the two grinding seats 31 to move toward or away from each other. The driving mechanism 12 includes a transmission motor 121 and a bidirectional screw rod 122. The bidirectional screw rod 122 is rotatably mounted on the workbench 1. The transmission motor 121 is used to drive the bidirectional screw rod 122 to rotate. The bidirectional screw rod 122 is provided with two sections of threads with opposite rotation directions. The two ends of the bidirectional screw rod 122 are respectively threadedly connected to the two grinding seats 31, so that when the transmission motor 121 drives the bidirectional screw rod 122 to rotate, the two grinding seats 31 can move away from or close to each other. In other embodiments not shown, the driving mechanism 12 can also be a hydraulic cylinder or other structures well known to those skilled in the art, which will not be described in detail in this embodiment.

[0038] like Figure 1-3As shown, in this embodiment, in order to ensure the stability of the grinding seat 31 when sliding, the number of slide rails 11 is two, and the bidirectional screw rod 122 is located between the two slide rails 11. In other embodiments not shown, the number of slide rails 11 can also be one or more.

[0039] like Figure 1 , 4 As shown, in this embodiment, the positioning device includes a positioning platform 21 which can move up and down relative to the workbench 1, a support rod 22 is fixedly installed on the positioning platform 21, a lower fixed seat 23 is fixedly installed on the upper end of the support rod 22, and the upper surface of the lower fixed seat 23 is an arc surface. The positioning device also includes an upper fixed seat 24 arranged above the lower fixed seat 23 and corresponding to the lower fixed seat 23, the surface of the upper fixed seat 24 close to the side of the lower fixed seat 23 is an arc surface, the upper fixed seat 24 can slide up and down relative to the lower fixed seat 23, and the cylinder barrel of the oil cylinder is arranged between the upper fixed seat 24 and the lower fixed seat 23.

[0040] like Figure 1 , 4 As shown, in this embodiment, a lifting cylinder 25 is fixedly installed on the workbench 1, and the output end of the lifting cylinder 25 is fixedly connected to the bottom of the positioning platform 21, so that the lifting cylinder 25 can drive the positioning platform 21 to move up and down relative to the workbench 1 by extending or retracting its output end. Specifically, the cylinder barrel of the cylinder is placed on the lower fixed seat 23, and the position of the positioning platform 21 relative to the workbench 1 is adjusted so that the cylinder barrel of the cylinder is coaxial with the grinding plate 33, and the position of the upper fixed seat 24 relative to the lower fixed seat 23 is adjusted so that the end face of the upper fixed seat 24 close to the lower fixed seat 23 abuts against the outer wall of the cylinder barrel of the cylinder, so that the cylinder barrel of the cylinder can be fixed between the upper fixed seat 24 and the lower fixed seat 23.

[0041] like Figure 1 , 4 As shown, in this embodiment, a support frame 26 is fixedly installed on the workbench 1, and a driving cylinder 27 is fixedly installed on the support frame 26. The output end of the driving cylinder 27 is arranged toward the lower fixed seat 23, and the upper fixed seat 24 is fixedly connected to the output end of the driving cylinder 27, so that when the driving cylinder 27 is working, its output end extends or retracts, which can drive the upper fixed seat 24 to move up and down relative to the lower fixed seat 23.

[0042] like Figure 1 , 4 As shown, in the present embodiment, in order to ensure the stability of the cylinder barrel during operation, two lower fixing seats 23 are provided, the upper fixing seat 24 is located between the two lower fixing seats 23, and the two lower fixing seats 23 are symmetrically arranged relative to the upper fixing seat 24. In other embodiments not shown, the number of the lower fixing seats 23 includes but is not limited to two.

[0043] The working process and principle of the utility model are as follows: the cylinder barrel of the oil cylinder to be processed is placed on the lower fixed seat 23, the transmission motor 121 drives the bidirectional screw rod 122 to rotate, and the two grinding seats 31 approach each other until the two grinding plates 33 respectively abut against the two ends of the cylinder barrel, and the limit bar 363 abuts against the limit groove 362, the driving cylinder 27 is working, and its output end extends out, driving the upper fixed seat 24 to move toward the lower fixed seat 23 until the upper fixed seat 24 abuts against the outer wall of the cylinder barrel, completing the positioning of the cylinder barrel, starting the driving motor 35, so that the driving motor 35 drives the grinding plate 33 to rotate, thereby grinding the two ends of the cylinder barrel of the oil cylinder, as the material at both ends of the cylinder barrel is continuously ground off, the force on the spring 361 gradually decreases, and the spring 361 gradually resets until the spring 361 returns to its original state, at this time, the position of the grinding plate 33 It is fixed relative to the cylinder barrel, so that the grinding plate 33 cannot continue to grind the cylinder barrel, and then the processing depth of the cylinder barrel end is limited, thereby ensuring the grinding amount at both ends of the cylinder barrel and avoiding material waste caused by excessive grinding. During the grinding process, the debris generated will fall into the collection bin 34 below to avoid the debris flying around and making cleaning inconvenient. The end processing device for the cylinder barrel of a hydraulic cylinder provided by the utility model can grind both ends of the cylinder barrel of the cylinder at the same time, thereby improving work efficiency, and the debris generated during the grinding process can be collected for easy cleaning. At the same time, the processing depth of the cylinder barrel end is limited to ensure the grinding amount at both ends of the cylinder barrel and avoid material waste caused by excessive grinding. During the grinding process, the upper fixed seat 24 and the lower fixed seat 23 position and clamp the cylinder barrel of the cylinder to avoid displacement of the cylinder barrel during the grinding process that affects the grinding effect.

[0044] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. An end processing device for processing a cylinder barrel of a hydraulic cylinder, comprising a workbench (1), wherein a positioning component (2) and a grinding component (3) are provided on the workbench (1), wherein the positioning component (2) is used to fix the cylinder barrel to be processed, and wherein: The grinding assemblies (3) are provided with two, the two grinding assemblies (3) are respectively located on both sides of the positioning assembly (2), and the two grinding assemblies (3) can move towards or away from each other, the grinding assembly (3) comprises a grinding seat (31), the grinding seat (31) is slidably arranged on the workbench (1), a sliding column (32) is slidably connected to the grinding seat (31), a rotatable grinding plate (33) is provided on the sliding column (32), a collecting bin (34) is fixedly installed on the grinding seat (31) below the grinding plate (33), and the grinding assembly (3) further comprises a limiting assembly (36) for limiting the grinding depth at both ends of the cylinder.

2. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: A driving motor (35) is fixedly mounted on the sliding column (32), and the grinding plate (33) is fixedly mounted on the output end of the driving motor (35).

3. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: The workbench (1) is provided with a slide rail (11), and the bottom of the grinding seat (31) is provided with a slide groove corresponding to the slide rail (11), so that the grinding seat (31) can slide along the slide rail (11) on the workbench (1).

4. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: The workbench (1) is provided with a driving mechanism (12) for driving the grinding seat (31) to slide relative to the workbench (1); the driving mechanism (12) comprises a transmission motor (121) and a bidirectional screw rod (122); the bidirectional screw rod (122) is rotatably mounted on the workbench (1); the transmission motor (121) is used to drive the bidirectional screw rod (122) to rotate; the bidirectional screw rod (122) is provided with two sections of threads with opposite rotation directions; two ends of the bidirectional screw rod (122) are respectively threadedly connected to the two grinding seats (31).

5. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: The limiting assembly (36) comprises a spring (361), a limiting groove (362) and a limiting strip (363); a cavity (311) for mounting a sliding column (32) is provided on the grinding seat (31); one end of the sliding column (32) is slidably arranged in the cavity (311); the spring (361) is fixedly installed between an end of the sliding column (32) located in the cavity (311) and a wall of the cavity (311); the limiting strip (363) is fixedly arranged on an outer surface of an end of the sliding column (32) located outside the cavity (311); and a limiting groove (362) corresponding to the limiting strip (363) is provided on the grinding seat (31).

6. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 5, characterized in that: When the spring (361) is in a normal state, the limiting strip (363) is located outside the limiting groove (362).

7. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: The positioning assembly (2) comprises a positioning platform (21) movable up and down relative to the workbench (1), a support rod (22) being fixedly mounted on the positioning platform (21), a lower fixing seat (23) being fixedly mounted on the upper end of the support rod (22), and an upper surface of the lower fixing seat (23) being a curved surface.

8. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 7, characterized in that: The positioning assembly (2) further comprises an upper fixing seat (24) arranged above the lower fixing seat (23) and corresponding to the lower fixing seat (23); a surface of the upper fixing seat (24) close to the lower fixing seat (23) is an arc surface, and the upper fixing seat (24) can slide up and down relative to the lower fixing seat (23).

9. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 8, characterized in that: A support frame (26) is fixedly mounted on the workbench (1), a driving cylinder (27) is fixedly mounted on the support frame (26), an output end of the driving cylinder (27) is arranged toward the lower fixed seat (23), and the upper fixed seat (24) is fixedly connected to the output end of the driving cylinder (27).

10. The end processing device for machining the cylinder barrel of a hydraulic cylinder according to claim 7, characterized in that: A lifting cylinder (25) is fixedly provided on the workbench (1), and an output end of the lifting cylinder (25) is fixedly connected to the bottom of the positioning platform (21).

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