Polishing device for piston rod of oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder piston rod machining, and discloses an oil cylinder piston rod polishing device which comprises a frame, the outer wall of the top of the frame is fixedly connected with two fixing plates, one side of each fixing plate is rotationally connected with a rotating disc, one side of each rotating disc is fixedly connected with a first round pipe, and the other side of each rotating disc is fixedly connected with a second round pipe. A first round pipe is arranged in the frame, a second round pipe is slidably connected into the first round pipe, the second round pipe and the first round pipe are directly provided with an adjusting assembly, an ejector rod is in threaded connection with the interior of the second round pipe, two linear guide rails are fixedly connected to the outer wall of the top of the frame, and linear motors are electrically connected to the two linear guide rails. According to the piston rod polishing device, the two ends of the piston rod can be clamped and fixed, the position needing to be polished is prevented from being shielded, the tightness degree of the abrasive belt can be adjusted through the arranged tensioning wheel, the abrasive belt is always in a tightened state on the driving belt wheel and the two driven belt wheels, and the piston rod is better polished.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder piston rod processing, and more specifically to an oil cylinder piston rod polishing device. Background Art

[0002] The cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. The cylinder is composed of multiple components, and the piston rod is one of the important components.

[0003] After searching, a Chinese patent with publication number CN212527307U discloses a hydraulic cylinder piston rod polishing device. However, there are still the following defects: when the device clamps the piston rod, a part of the piston rod is blocked, and the surface of the piston rod cannot be completely polished. The end needs to be replaced and polished again, which is time-consuming. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cylinder piston rod polishing device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a cylinder piston rod polishing device, comprising a frame, the top outer wall of the frame is fixedly connected to two fixed plates, one side of the fixed plate is rotatably connected to a rotating disk, one side of the rotating disk is fixedly connected to a first round tube, a second round tube is slidably connected in the first round tube, and the second round tube and the first round tube are directly provided with an adjustment component, a push rod is threadedly connected to the inner thread of the second round tube, two linear guides are fixedly connected to the top outer wall of the frame, a linear motor is electrically connected to the two linear guides, a moving frame is fixedly connected to the upper surface of the two linear motors, a square frame is fixedly connected to the upper surface of the moving frame, a slide is slidably connected in the square frame, a servo motor is fixedly connected to one side of the slide, one end of the servo motor output shaft passes through a side key of the slide and is connected to a driving pulley, one side of the slide is rotatably connected to two driven pulleys, and the two driven pulleys are respectively located at two corners on the same side of the slide to form a triangle with the driving pulley, and the two driven pulleys are connected to the driving pulley through a sand belt transmission.

[0006] As a further solution of the utility model, the adjustment component is a plurality of sockets, and the plurality of sockets are all opened on the circumferential outer wall of the second circular tube, and the plurality of sockets all penetrate the second circular tube, a circular hole is opened on the circumferential outer wall of the first circular tube, and the circular hole penetrates the first circular tube, a ball head locking pin is slidably connected in the circular hole, and the ball head locking pin passes through one of the sockets.

[0007] As a further solution of the utility model, an electric push rod is fixedly connected to one side of the square frame, and one end of the output shaft of the electric push rod passes through an inner wall of one side of the square frame and is fixed to one side of the slide.

[0008] As a further solution of the utility model, a sliding mouth is provided on the slide, a threaded rod is rotatably connected between the inner walls on both sides of the sliding mouth, and one end of the threaded rod passes through one side of the slide, one end of the threaded rod is fixedly connected to a knob, a slider is threadedly connected to the threaded rod, and the slider slides in the sliding mouth, one side of the slider is fixedly connected to a fixing rod, one end of the fixing rod is rotatably connected to a tensioning wheel, and the tensioning wheel is in contact with the sanding belt.

[0009] As a further solution of the utility model, the two driven pulleys are respectively located above and below the horizontal position of the piston rod, and the piston rod and the two driven pulleys will not contact each other.

[0010] As a further solution of the utility model, a Z-shaped rocker is provided on one side of the fixed plate, and one end of the Z-shaped rocker passes through one side of the fixed plate and is fixed to the rotating disk, and one end of the Z-shaped rocker is provided with anti-slip grooves.

[0011] As a further solution of the utility model, a collecting box is slidably connected inside the frame, and a avoiding opening is opened on the top outer wall of the frame, and the avoiding opening is arranged directly below the piston rod.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model clamps and fixes the two ends of the piston rod by means of two push rods, thereby avoiding the parts that need to be polished from being blocked, making the circumferential outer wall of the piston rod completely exposed, facilitating the polishing of the piston rod surface, saving a lot of time for replacing the end, and greatly improving the working efficiency of the device.

[0014] 2. The utility model facilitates the operation of the slide by means of the electric push rod. After the polishing of the piston rod is completed, the electric push rod is retracted to separate the sanding belt from the piston rod, thereby preventing the accuracy of the piston rod from being affected by excessive polishing.

[0015] 3. The utility model can adjust the tightness of the abrasive belt through the tensioning wheel, so that the abrasive belt is always in a tight state on the driving pulley and the two driven pulleys, so as to better polish the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the rear three-dimensional structure of the utility model.

[0018] Figure 3 It is a partially enlarged structural schematic diagram of the utility model.

[0019] Figure 4 It is a partially enlarged structural schematic diagram of the utility model.

[0020] Figure 5 It is a schematic diagram of the enlarged structure of part A of the utility model.

[0021] The accompanying drawings are marked as follows: 1. frame; 2. collection box; 3. avoidance opening; 4. linear guide rail; 5. movable frame; 6. fixed plate; 7. square frame; 8. linear motor; 9. electric push rod; 10. slide; 11. driving pulley; 12. driven pulley; 13. fixed rod; 14. tensioning wheel; 15. sliding opening; 16. slider; 17. threaded rod; 18. knob; 19. rotating disk; 20. first round tube; 21. second round tube; 22. socket; 23. ball head locking pin; 24. push rod. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 4The utility model provides a cylinder piston rod polishing device, including a frame 1, the top outer wall of the frame 1 is fixedly connected to two fixed plates 6 by bolts, one side of the fixed plate 6 is rotatably connected to a rotating disk 19, one side of the rotating disk 19 is fixedly connected to a first round tube 20 by bolts, a second round tube 21 is slidably connected inside the first round tube 20, and the second round tube 21 and the first round tube 20 are directly provided with an adjustment component, a push rod 24 is threadedly connected inside the second round tube 21, the top outer wall of the frame 1 is fixedly connected to two linear guides 4 by bolts, the two linear guides 4 are electrically connected to linear motors 8, the upper surfaces of the two linear motors 8 are fixedly connected to a moving frame 5 by bolts, the upper surface of the moving frame 5 is fixedly connected to a square frame 7 by bolts, and a slide is slidably connected inside the square frame 7 10. A servo motor is fixedly connected to one side of the slide 10 by bolts, and one end of the servo motor output shaft passes through a side key of the slide 10 and is connected to a driving pulley 11. One side of the slide 10 is rotatably connected to two driven pulleys 12, and the two driven pulleys 12 are respectively located at two corners on the same side of the slide 10 to form a triangle with the driving pulley 11, and the two driven pulleys 12 are connected to the driving pulley 11 by a sanding belt transmission, and the two ends of the piston rod are clamped and fixed by two push rods 24, which avoids the parts that need to be polished from being blocked, and makes the circumferential outer wall of the piston rod completely exposed, which is convenient for polishing the surface of the piston rod, and there is no need to re-fix the piston rod, which saves a lot of time for replacing the end, and greatly improves the working efficiency of the device.

[0024] Among them, the adjustment component is a plurality of jacks 22, and the plurality of jacks 22 are all opened on the circumferential outer wall of the second circular tube 21, and the plurality of jacks 22 all penetrate the second circular tube 21, and the circumferential outer wall of the first circular tube 20 is opened with a circular hole, and the circular hole penetrates the first circular tube 20, and a ball head locking pin 23 is slidably connected in the circular hole, and the ball head locking pin 23 passes through one of the jacks 22. Through the plurality of jacks 22 and the ball head locking pin 23, piston rods of different lengths can be conveniently clamped and fixed, thereby increasing the scope of application of the device. One side of the square frame 7 is fixedly connected with an electric push rod 9 by bolts, and one end of the output shaft of the electric push rod 9 passes through one side of the square frame 7. The wall is fixed to one side of the slide 10, and the slide 10 is conveniently operated by the electric push rod 9. After the polishing of the piston rod is completed, the electric push rod 9 is retracted to separate the sanding belt from the piston rod to prevent excessive polishing from affecting the accuracy of the piston rod. The slide 10 is provided with a sliding mouth 15, and a threaded rod 17 is rotatably connected between the inner walls on both sides of the sliding mouth 15, and one end of the threaded rod 17 passes through one side of the slide 10, and one end of the threaded rod 17 is fixedly connected to a knob 18 by a bolt, and a slider 16 is threadedly connected to the threaded rod 17, and the slider 16 slides in the sliding mouth 15, and a fixing rod 13 is welded to one side of the slider 16, and one end of the fixing rod 13 The end is rotatably connected with a tensioning wheel 14, and the tensioning wheel 14 is in contact with the sanding belt. The tensioning wheel 14 can adjust the tightness of the sanding belt, so that the sanding belt is always in a tight state on the driving pulley 11 and the two driven pulleys 12, so as to better polish the piston rod. The two driven pulleys 12 are respectively located above and below the horizontal position of the piston rod, and the piston rod and the two driven pulleys 12 will not contact each other. By placing the two driven pulleys 12 above and below the horizontal position of the piston rod, only the sanding belt is in contact with the piston rod during polishing, so as to prevent the driven pulley 12 from hitting the piston rod, causing the piston rod to deviate and affect the polishing. In order to achieve the effect, a Z-shaped rocker is provided on one side of the fixed plate 6, and one end of the Z-shaped rocker passes through one side of the fixed plate 6 and is fixed to the rotating disk 19, and one end of the Z-shaped rocker is provided with an anti-slip pattern. Through the Z-shaped rocker, the staff can rotate the piston rod by rotating the Z-shaped rocker, and the circumferential outer wall of the piston rod is polished in all directions. A collecting box 2 is slidably connected to the inside of the frame 1, and a avoidance opening 3 is provided on the top outer wall of the frame 1, and the avoidance opening 3 is arranged directly below the piston rod. The debris generated during the polishing process can be collected centrally through the collecting box 2, so as to avoid the debris splashing and the need for further manual cleaning, thereby saving manpower and time.

[0025] The utility model is divided into the following steps when used:

[0026] S1: First, adjust and pull out the ball head locking pin 23, adjust the position of the second round tube 21 to be slightly larger than the length of the piston rod, insert the ball head locking pin 23, and then place the piston rod between the two push rods 24, and then rotate the push rod 24. Since the push rod 24 is threadedly connected to the second round tube 21, it will move outward when the push rod 24 rotates. Rotate the push rod 24 to press against the piston rod to clamp and fix the piston rod;

[0027] S2: Then start the servo motor to drive the active pulley 11 to rotate, thereby driving the sanding belt to move at high speed, then rotate the knob 18 to drive the threaded rod 17 to rotate, and the threaded rod 17 drives the slider 16 to move along the slide 15 while rotating, thereby driving the tensioning wheel 14 to move, so that the sanding belt is in a taut state, start the electric push rod 9 to push the slide 10 to move in the frame 7, and the electric push rod 9 continues to extend until the sanding belt contacts the piston rod, and the piston rod can be polished;

[0028] S3: Rotate the Z-shaped rocker to drive the rotating disk 19 to rotate, thereby driving the first round tube 20 to rotate while the second round tube 21 rotates following the first round tube 20, which can drive the piston rod to rotate and then perform all-round polishing on the circumferential outer wall of the piston rod;

[0029] S4: Start the linear motor 8 to move along the linear guide rail 4 to drive the moving frame 5 to move. The moving frame 5 moves while driving the slide 10 to move, thereby changing the polishing position of the abrasive belt on the piston rod. The initial polishing can be completed by moving from one end of the piston rod to the other end.

[0030] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A cylinder piston rod polishing device, comprising a frame (1), characterized in that: The top outer wall of the frame (1) is fixedly connected to two fixed plates (6), one side of the fixed plate (6) is rotatably connected to a rotating disk (19), one side of the rotating disk (19) is fixedly connected to a first round tube (20), a second round tube (21) is slidably connected inside the first round tube (20), and the second round tube (21) and the first round tube (20) are directly provided with an adjustment component, the second round tube (21) is internally threadedly connected to a push rod (24), the top outer wall of the frame (1) is fixedly connected to two linear guide rails (4), the two linear guide rails (4) are electrically connected to linear motors (8), and the upper surfaces of the two linear motors (8) are A movable frame (5) is fixedly connected to the surface, a square frame (7) is fixedly connected to the upper surface of the movable frame (5), a slide (10) is slidably connected inside the square frame (7), a servo motor is fixedly connected to one side of the slide (10), one end of the servo motor output shaft passes through a side key of the slide (10) and is connected to a driving pulley (11), one side of the slide (10) is rotatably connected to two driven pulleys (12), and the two driven pulleys (12) are respectively located at two corners on the same side of the slide (10) to form a triangle with the driving pulley (11), and the two driven pulleys (12) are connected to the driving pulley (11) through a sanding belt transmission.

2. The oil cylinder piston rod polishing device according to claim 1, characterized in that: The adjustment component comprises a plurality of jacks (22), the plurality of jacks (22) are all provided on the circumferential outer wall of the second circular tube (21), and the plurality of jacks (22) all penetrate the second circular tube (21), a circular hole is provided on the circumferential outer wall of the first circular tube (20), and the circular hole penetrates the first circular tube (20), a ball head locking pin (23) is slidably connected in the circular hole, and the ball head locking pin (23) passes through one of the jacks (22).

3. The cylinder piston rod polishing device according to claim 1, characterized in that: An electric push rod (9) is fixedly connected to one side of the square frame (7), and one end of the output shaft of the electric push rod (9) passes through an inner wall of one side of the square frame (7) and is fixed to one side of the slide frame (10).

4. The cylinder piston rod polishing device according to claim 1, characterized in that: The slide (10) is provided with a sliding opening (15), a threaded rod (17) is rotatably connected between the inner walls on both sides of the sliding opening (15), and one end of the threaded rod (17) passes through one side of the slide (10), one end of the threaded rod (17) is fixedly connected to a knob (18), a slider (16) is threadedly connected to the threaded rod (17), and the slider (16) slides in the sliding opening (15), one side of the slider (16) is fixedly connected to a fixed rod (13), one end of the fixed rod (13) is rotatably connected to a tensioning wheel (14), and the tensioning wheel (14) is in contact with the sanding belt.

5. The cylinder piston rod polishing device according to claim 3, characterized in that: The two driven pulleys (12) are respectively located above and below the horizontal position of the piston rod, and the piston rod and the two driven pulleys (12) do not contact each other.

6. The cylinder piston rod polishing device according to claim 1, characterized in that: A Z-shaped rocker is provided on one side of the fixing plate (6), and one end of the Z-shaped rocker passes through one side of the fixing plate (6) and is fixed to the rotating disk (19), and one end of the Z-shaped rocker is provided with anti-slip grooves.

7. The cylinder piston rod polishing device according to claim 1, characterized in that: A collection box (2) is slidably connected inside the frame (1), a position avoidance opening (3) is provided on the top outer wall of the frame (1), and the position avoidance opening (3) is arranged directly below the piston rod.

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