Piston rod mirror polishing device for hydraulic oil cylinder

Abstract

The utility model discloses a piston rod mirror polishing device for a hydraulic oil cylinder, which relates to the technical field of piston rod processing and comprises a worktable, a groove is arranged in the middle of the worktable, a positioning seat is mounted in the groove in a liftable manner, and polishing mechanisms are symmetrically arranged on two sides of the groove. And conveying mechanisms are arranged on the left side and the right side of the polishing mechanism correspondingly, each conveying mechanism comprises a conveying roller, the conveying rollers are rotationally installed on an installation frame, the installation frame is installed on the top of the workbench in a liftable mode, and a first motor used for driving the conveying rollers to rotate is fixedly installed on the installation frame. According to the design scheme, through the design that the positioning base is installed in the groove in a liftable mode, the piston rod is placed on the positioning base firstly, then the height of the positioning base is adjusted through the hydraulic rod according to the diameter of the piston rod, and therefore the distance between the positioning base and the polishing mechanism is adjusted; therefore, the polishing device is suitable for polishing piston rods with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rod processing, in particular to a piston rod mirror polishing device for a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it 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 composed of multiple parts, one of which is the piston rod. The smoothness of the piston rod directly affects the use effect of the hydraulic cylinder. Therefore, when processing the piston rod, it is necessary to polish the piston rod. However, at present, the staff usually uses a handheld polishing machine to polish the piston rod, which makes the piston rod prone to uneven polishing, which affects the subsequent use of the piston rod.

[0003] CN 218137223 U discloses a polishing device for a piston rod of a hydraulic oil cylinder, comprising an inclined frame, a groove is provided on the top of the inclined frame, a first connecting shaft is movably connected to an outer wall of one side of the inclined frame, one end of the first connecting shaft is fixedly connected to a first pulley, the other end of the first connecting shaft passes through the inclined frame, one side of the first connecting shaft is fixedly connected to two second grinding rollers, a motor is fixedly connected to an outer wall of one side of the inclined frame, and one end of the motor output shaft passes through the inclined frame and is fixed to the first connecting shaft, and a second connecting shaft is movably connected to an outer wall of one side of the inclined frame. The polishing device is used in conjunction with the groove and wool polishing, the piston rod moves slowly downward along the groove under the action of gravity, the motor rotates to drive the second grinding roller and the first grinding roller to rotate counterclockwise under the action of friction through the wool polishing, so that the piston rod rotates while moving slowly downward, and the piston rod is evenly polished and polished by the wool polishing, avoiding the use of a handheld polishing machine by a staff member to polish the piston rod, resulting in uneven polishing of the piston rod, which affects the subsequent use of the piston rod and improves the polishing effect of the device.

[0004] However, in the above-mentioned piston rod polishing device, the piston rod relies on gravity to move in the groove. Since the grinding roller contacts the piston rod during the polishing process, friction will be generated between the grinding roller and the piston rod, which will cause the piston rod to move unsmoothly in the groove and even cause the piston rod to get stuck in the groove. In addition, the distance between the groove and the grinding roller is fixed, so it is not suitable for piston rods of different diameters. Utility Model Content

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a mirror polishing device for a piston rod of a hydraulic cylinder.

[0006] The utility model solves the technical problem by adopting the following technical solution: a mirror polishing device for a piston rod of a hydraulic cylinder, comprising a workbench, a groove is provided in the middle of the workbench, a positioning seat is installed in a liftable manner in the groove, polishing mechanisms are symmetrically arranged on both sides of the groove, and conveying mechanisms are respectively arranged on the left and right sides of the polishing mechanism, the conveying mechanism comprises a conveying roller, the conveying roller is rotatably installed on a mounting frame, the mounting frame is liftably installed on the top of the workbench, and a first motor for driving the conveying roller to rotate is fixedly installed on the mounting frame.

[0007] Furthermore, a plurality of groups of hydraulic rods are fixedly installed at the bottom of the groove, the power output end of the hydraulic rod is fixedly connected to the bottom of the positioning seat, and two groups of positioning rods are rotatably installed at the top of the positioning seat.

[0008] Furthermore, the polishing mechanism includes a cloth wheel, which is rotatably mounted on the top of the workbench, a fixed frame is provided on the right side of the cloth wheel, the fixed frame is fixedly mounted on the workbench, a second motor is fixedly mounted on the top of the fixed frame, the second motor is located in the middle position of the two groups of cloth wheels, a multi-stage pulley is fixedly mounted on the power output shaft of the second motor, driven pulleys are respectively fixedly mounted on the rotating shafts of the two groups of cloth wheels, and the two groups of driven pulleys are respectively connected to the multi-stage pulley through belts.

[0009] Furthermore, the mounting frame is a C-shaped structure, and the bottom ends of the front and rear sides of the mounting frame are provided with supporting feet, and a fixed seat is provided below the supporting feet. A light rod is fixedly installed on the fixed seat, and the light rod is slidably connected to the supporting feet. A limit platform is provided at the top of the light rod, and a spring is provided between the limit platform and the supporting feet, and the spring is sleeved on the light rod.

[0010] Furthermore, a motor mounting plate is provided on the top of the mounting frame, a first motor is fixedly mounted on the motor mounting plate, a first transmission wheel is fixedly mounted on the power output shaft of the first motor, a second transmission wheel is fixedly mounted on the rotating shaft of the conveying roller, and the first transmission wheel and the second transmission wheel are connected by a belt.

[0011] Furthermore, a layer of rubber material is attached to the surface of the conveying roller.

[0012] The beneficial effects of the utility model are:

[0013] 1. The design of the utility model adopts the design of a positioning seat installed in a groove that can be raised and lowered. First, the piston rod is placed on the positioning seat. Then, according to the diameter of the piston rod, the height of the positioning seat is adjusted by the hydraulic rod, thereby adjusting the distance between the positioning seat and the polishing mechanism, and thus it can be suitable for polishing processing of piston rods of different diameters.

[0014] 2. The utility model design scheme is designed with conveying mechanisms on the left and right sides of the polishing mechanism. When the piston rod rises with the positioning seat, the top of the piston rod abuts against the conveying roller and pushes the mounting frame upward as a whole. Under the action of the spring, the piston rod is pressed in the opposite direction, and then the first motor is started to rotate the conveying roller. Under the action of the conveying roller, the piston rod moves at a uniform speed on the positioning seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a right side view of the utility model;

[0019] Figure 4 It is a top view of the utility model;

[0020] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0021] Figure 6 for Figure 5 A partial enlarged view of area B.

[0022] In the figure: 1. workbench, 2. groove, 3. positioning seat, 4. conveyor roller, 5. mounting frame, 51. support foot, 52. motor mounting plate, 6. first motor, 7. fixed seat, 8. light rod, 81. limit table, 9. spring, 10. first transmission wheel, 11. second transmission wheel, 12. hydraulic rod, 13. positioning rod, 14. cloth wheel, 15. fixed frame, 16. second motor, 17. multi-stage pulley, 18. driven pulley. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0024] according to Figure 1-6As shown, a mirror polishing device for a piston rod of a hydraulic cylinder comprises a workbench 1, a groove 2 is provided in the middle of the workbench 1, a positioning seat 3 is installed in the groove 2 in a liftable manner, polishing mechanisms are symmetrically arranged on both sides of the groove 2, and conveying mechanisms are respectively arranged on the left and right sides of the polishing mechanism, and the conveying mechanism comprises a conveying roller 4, which is rotatably mounted on a mounting frame 5, and the mounting frame 5 is liftably mounted on the top of the workbench 1, and a first motor 6 for driving the conveying roller 4 to rotate is fixedly installed on the mounting frame 5.

[0025] In this embodiment, a plurality of groups of hydraulic rods 12 are fixedly installed at the bottom of the groove 2, and the power output end of the hydraulic rod 12 is fixedly connected to the bottom of the positioning seat 3. Two groups of positioning rods 13 are rotatably installed on the top of the positioning seat 3. The two groups of positioning rods 13 are symmetrically arranged on the positioning seat 3 along the middle of the groove 2. The piston rod is placed between the two groups of positioning rods 13. The piston is positioned by the positioning rod 13 to prevent the piston rod from rolling on the positioning seat 3. The positioning seat 3 is driven up and down in the groove 2 by the hydraulic rod 12, so that the distance between the positioning seat 3 and the polishing mechanism is adjusted according to the piston rods of different diameters.

[0026] In this embodiment, the polishing mechanism includes a cloth wheel 14, which is rotatably mounted on the top of the workbench 1 through a bearing seat. A fixing frame 15 is provided on the right side of the cloth wheel 14, and the fixing frame 15 is fixedly mounted on the workbench 1. A second motor 16 is fixedly mounted on the top of the fixing frame 15, and the second motor 16 is located in the middle position of the two groups of cloth wheels 14. A multi-stage pulley 17 is fixedly mounted on the power output shaft of the second motor 16, and driven pulleys 18 are fixedly mounted on the rotating shafts of the two groups of cloth wheels 14, respectively. The two groups of driven pulleys 18 are respectively connected to the multi-stage pulley 17 through belts, and the multi-stage pulley 17 is driven to rotate by the second motor 16, and the power is transmitted to the driven pulleys 18 through the belts, thereby driving the cloth wheel 14 to rotate to polish the piston rod. The belts are arranged in a herringbone shape to avoid the piston rod to prevent interference between the piston rod and the belts.

[0027] In this embodiment, the mounting frame 5 is a C-shaped structure, and the bottom ends of the front and rear sides of the mounting frame 5 are provided with supporting feet 51, and a fixing seat 7 is provided below the supporting feet 51. A polished rod 8 is fixedly installed on the fixing seat 7, and the polished rod 8 is slidably connected to the supporting feet 51. A limit platform 81 is provided at the top of the polished rod 8, and a spring 9 is provided between the limit platform 81 and the supporting feet 51. The spring 9 is sleeved on the polished rod 8. When the piston rod is polished, the top of the piston rod abuts against the conveying roller 4, and the mounting frame 5 is pushed upward as a whole through the piston rod, and the piston rod is pressed in the reverse direction under the action of the spring 9.

[0028] In this embodiment, a motor mounting plate 52 is provided on the top of the mounting frame 5, and a first motor 6 is fixedly mounted on the motor mounting plate 52. A first transmission wheel 10 is fixedly mounted on the power output shaft of the first motor 6, and a second transmission wheel 11 is fixedly mounted on the rotating shaft of the conveying roller 4. The first transmission wheel 10 and the second transmission wheel 11 are connected by a belt. The first rotating wheel is driven to rotate by the first motor 6, and power is transmitted to the second transmission wheel 11 through the belt, thereby driving the conveying roller 4 to rotate.

[0029] In this embodiment, a layer of rubber material is attached to the surface of the conveying roller 4 , which increases the friction between the conveying roller 4 and the hydraulic rod 12 when they are in contact, so that the conveying roller 4 can drive the piston rod to move at a constant speed on the positioning seat 3 .

[0030] The specific use process of the utility model is as follows: first, the piston rod is placed on the positioning seat 3 and positioned by the positioning rod 13; then, according to the diameter of the piston rod, the height of the positioning seat 3 is adjusted by adjusting the hydraulic rod 12, so that the piston rod contacts the cloth wheel 14; when the piston rod rises with the positioning seat 3, the top of the piston rod abuts against the conveying roller 4, and the mounting frame 5 is pushed upward as a whole; the piston rod is reversely pressed under the action of the spring 9; then, the first motor 6 is started to rotate the conveying roller 4; the piston rod slides on the positioning seat 3 under the action of the conveying roller 4; then, the second motor 16 is started to rotate the cloth wheel 14, and the piston rod is polished by the cloth wheel 14.

[0031] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A mirror polishing device for a piston rod of a hydraulic cylinder, comprising a workbench (1), characterized in that: A groove (2) is provided in the middle of the workbench (1), a positioning seat (3) is installed in the groove (2) in a manner that it can be lifted or lowered, polishing mechanisms are symmetrically arranged on both sides of the groove (2), and conveying mechanisms are respectively arranged on the left and right sides of the polishing mechanism, and the conveying mechanism comprises a conveying roller (4), and the conveying roller (4) is rotatably installed on a mounting frame (5), and the mounting frame (5) is rotatably installed on the top of the workbench (1), and a mechanism for driving the conveying roller (4) to rotate is fixedly installed on the mounting frame (5). The first motor (6) is provided with a mounting frame (5) of a C-shaped structure. The bottom ends of the mounting frame (5) on both sides of the front and rear sides are provided with supporting feet (51). A fixing seat (7) is provided below the supporting feet (51). A light rod (8) is fixedly installed on the fixing seat (7). The light rod (8) is slidably connected to the supporting feet (51). A limit platform (81) is provided at the top of the light rod (8). A spring (9) is provided between the limit platform (81) and the supporting feet (51). The spring (9) is sleeved on the light rod (8).

2. A mirror polishing device for a piston rod of a hydraulic cylinder according to claim 1, characterized in that: A plurality of groups of hydraulic rods (12) are fixedly mounted on the bottom of the groove (2); the power output end of the hydraulic rod (12) is fixedly connected to the bottom of the positioning seat (3); and two groups of positioning rods (13) are rotatably mounted on the top of the positioning seat (3).

3. The mirror polishing device for a piston rod of a hydraulic cylinder according to claim 1, characterized in that: The polishing mechanism comprises a cloth wheel (14), the cloth wheel (14) is rotatably mounted on the top of a workbench (1), a fixing frame (15) is provided on the right side of the cloth wheel (14), the fixing frame (15) is fixedly mounted on the workbench (1), a second motor (16) is fixedly mounted on the top of the fixing frame (15), the second motor (16) is located in the middle position of the two groups of cloth wheels (14), a multi-stage pulley (17) is fixedly mounted on the power output shaft of the second motor (16), driven pulleys (18) are respectively fixedly mounted on the rotating shafts of the two groups of cloth wheels (14), and the two groups of driven pulleys (18) are respectively connected to the multi-stage pulley (17) through belts.

4. A mirror polishing device for a piston rod of a hydraulic cylinder according to claim 1, characterized in that: A motor mounting plate (52) is provided on the top of the mounting frame (5), a first motor (6) is fixedly mounted on the motor mounting plate (52), a first transmission wheel (10) is fixedly mounted on the power output shaft of the first motor (6), a second transmission wheel (11) is fixedly mounted on the rotating shaft of the conveying roller (4), and the first transmission wheel (10) and the second transmission wheel (11) are connected via a belt.

5. A mirror polishing device for a piston rod of a hydraulic cylinder according to claim 4, characterized in that: A layer of rubber material is attached to the surface of the conveying roller (4).

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