Hydraulic piston rod diameter measuring device of hydraulic system

By designing a hydraulic piston rod diameter measuring device with cleaning and clamping rotation components, the problem of dust on the surface of the hydraulic piston rod affecting measurement accuracy was solved, achieving stable clamping and accurate measurement that can flexibly adapt to different workpieces.

CN223564994UActive Publication Date: 2025-11-18WUXI HANWEI HYDRAULIC PNEUMATIC CO LTD
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Patent Information

Application Number
CN202423263436.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-18
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

During use, dust and dirt easily accumulate on the surface of the hydraulic piston rod, affecting the measurement accuracy. Existing measuring devices are not flexible enough and cannot adapt to workpieces of different sizes and shapes.

Method used

A hydraulic piston rod diameter measuring device was designed, comprising a cleaning component and a clamping and rotating component. The cleaning component cleans the dust on the surface of the workpiece through a cleaning plate and a toothed frame structure. The clamping and rotating component uses a servo motor to drive the clamping block to clamp the workpiece and make it coincide with the axis of the movable cylinder, ensuring measurement accuracy.

Benefits of technology

It effectively cleans dust particles from the workpiece surface, ensuring measurement accuracy, and can adapt to workpieces of different sizes and shapes, achieving stable clamping and precise measurement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic piston rod diameter measuring device of a hydraulic system, which relates to the technical field of diameter measurement and comprises support plates and a workpiece, the support plates are symmetrically arranged, a group of symmetrical slide rails are fixedly connected to opposite sides of the support plates, a plurality of control panels are slidably connected to the slide rails, and the control panels are fixedly connected to the support plates. Clamping plates are movably connected to the inner sides of the control plates, air pipes are fixedly connected to the other ends of the clamping plates and connected with a pneumatic device, toothed plates and guide plates are fixedly connected to the opposite sides of the supporting plates, grooves used for limiting the direction are formed in the guide plates, and a plurality of cleaning assemblies are movably connected to the guide plates. According to the utility model, through the arrangement of the cleaning assembly, in the moving process of the control panel, the toothed plate can relieve the limiting of the toothed frame, and the cleaning sheet moves downwards and cooperates with the movement, so that the cleaning sheet can move to different positions of a workpiece, and the position needing to be measured can be cleaned; dust particles adhered to the surface of the workpiece are prevented from influencing the measurement accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of diameter measurement technology, specifically a hydraulic piston rod diameter measuring device for a hydraulic system. Background Technology

[0002] Hydraulic systems are an indispensable component of modern mechanical equipment. They utilize the incompressible properties of liquids to achieve energy transfer and amplification, and are widely used in various industrial and engineering machinery. In hydraulic systems, the hydraulic piston rod is one of the actuators, and the accurate measurement of its diameter is crucial to ensuring system performance and safe operation of equipment.

[0003] However, during long-term use, dust and dirt easily accumulate on the surface of the hydraulic piston rod. If these particles are not effectively cleaned, they will directly affect the accuracy of the measurement. In addition, existing measuring devices are often not flexible enough in operation and have poor adaptability to workpieces of different sizes and shapes, failing to meet diverse measurement needs. Therefore, a hydraulic piston rod diameter measuring device with a hydraulic system is needed to solve the existing shortcomings. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hydraulic piston rod diameter measuring device for a hydraulic system. The cleaning component facilitates the movement of the cleaning blade to different positions on the workpiece, thereby cleaning the position to be measured and avoiding the influence of dust particles adhering to the workpiece surface on the measurement accuracy. The clamping and rotating component helps to keep the workpiece in a horizontal and stable state, and the axis of the workpiece coincides with the axis of the movable cylinder.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic piston rod diameter measuring device for a hydraulic system, comprising a support plate and a workpiece. The support plates are symmetrically arranged, and a set of symmetrical slide rails are fixedly connected to opposite sides of the support plates. Several control plates are slidably connected to each slide rail. Clamping plates are movably connected to the inner side of each control plate, and an air pipe is fixedly connected to the other end of each clamping plate. Toothed plates and guide plates are fixedly connected to opposite sides of the support plates. Several cleaning components are movably connected to the guide plates. The cleaning components are movably connected to the toothed plates and control plates, and are movably connected to the surface of the workpiece. Clamping and rotating components are provided on each support plate, and are movably connected to both ends of the workpiece.

[0006] The present invention is further configured such that the cleaning assembly includes a cleaning plate, a connecting rod, a toothed frame, and a wedge. The cleaning plate is fixedly connected to the top end of the connecting rod, and the toothed frame is fixedly connected to the bottom end of the connecting rod. The wedge is fixedly connected to the inner side of the toothed frame, and a set of symmetrical inclined surfaces are constructed on the wedge.

[0007] The present invention is further configured such that a partition is movably sleeved on the outer side of the connecting rod, and a return spring is sleeved on the outer side of the connecting rod. The top end of the return spring is fixedly connected to the bottom of the cleaning plate, and the bottom end of the return spring is fixedly connected to the top end of the partition.

[0008] The present invention is further configured such that the connecting rod movably passes through the inner side of the guide plate, and the partition is movably connected to the top of the guide plate; the bottom of the toothed frame is constructed with teeth, and the toothed frame meshes with the toothed plate through the teeth.

[0009] The present invention is further configured such that a push rod is movably connected to the bottom of the control board, one end of the push rod is fixed to a push block, and the push block is located on the outside of the control board. A set of symmetrical through slots are provided on the tooth frame, the push rod movably passes through the through slots, and the front end of the push block abuts against the inclined surface of the wedge block.

[0010] The present invention is further configured such that the clamping and rotating assembly includes a movable cylinder, a fixed disk, a rotating disk, clamping blocks, and a drive column. The fixed disk is fixedly connected to the inside of the movable cylinder, and the rotating disk is movably connected to the inside of the movable cylinder. The fixed disk has several guide grooves, and several clamping blocks are movably connected to the front side of the fixed disk through the guide grooves. The drive column has several drive grooves, and the inside of each drive groove is movably connected to the drive column. The drive column is fixedly connected to the tail end of each clamping block, and the end of the workpiece is located inside the clamping block.

[0011] The present invention is further configured such that the movable cylinder is movably connected to the support plate, and a servo motor is fixedly connected to the rear end of the movable cylinder, and the output end of the servo motor is fixedly connected to the axis of the rotating disk.

[0012] The present invention is further configured such that a toothed ring is fixedly connected to the outer side of the movable cylinder, and gears are movably connected to the outer side of the support plate through a rotating shaft, and the gears mesh with the toothed ring. A second servo motor is fixedly connected to the outer side of the support plate, and the output end of the second servo motor is fixedly connected to the rotating shaft of the gear.

[0013] Compared with the prior art, the hydraulic piston rod diameter measuring device of this hydraulic system has the following advantages:

[0014] 1. The cleaning component of this utility model facilitates the movement of the control plate, allowing the toothed plate to release its restriction on the toothed frame and the cleaning plate to move downwards. The coordinated operation of these actions allows the cleaning plate to move to different positions on the workpiece, thereby cleaning the areas that need to be measured and preventing dust particles adhering to the workpiece surface from affecting the measurement accuracy.

[0015] 2. This utility model, through the clamping and rotating assembly, starts a servo motor to drive the turntable to rotate inside the movable cylinder, causing the drive groove to rotate around the axis of the turntable, which in turn drives the drive column to move synchronously. Due to the guiding effect of the guide groove, the clamping blocks move closer to each other along the guide groove, thereby clamping the end of the workpiece. This helps to keep the workpiece in a horizontal and stable state, and the axis of the workpiece coincides with the axis of the movable cylinder. Thus, when the workpiece rotates, the circumference of the workpiece can be thoroughly cleaned, which facilitates accurate measurement of the workpiece after the clamping plates approach. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the mechanism structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mechanism structure of this utility model;

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 5 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Support plate; 2. Workpiece; 3. Slide rail; 4. Control panel; 5. Clamping plate; 6. Air pipe; 7. Gear plate; 8. Guide plate; 9. Cleaning assembly; 901. Cleaning plate; 902. Connecting rod; 903. Gear frame; 904. Wedge block; 10. Clamping and rotating assembly; 1001. Movable cylinder; 1002. Fixed plate; 1003. Turning plate; 1004. Clamping block; 1005. Drive column; 11. Partition plate; 12. Return spring; 13. Push rod; 14. Push block; 15. Through groove; 16. Guide groove; 17. Drive groove; 18. Servo motor one; 19. Gear ring; 20. Gear; 21. Servo motor two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5As shown, this utility model provides a technical solution: a hydraulic piston rod diameter measuring device for a hydraulic system, including a support plate 1 and a workpiece 2. The support plate 1 is symmetrically arranged, and a set of symmetrical slide rails 3 are fixedly connected to the opposite sides of the support plate 1. Several control plates 4 are slidably connected to the slide rails 3. Clamping plates 5 are movably connected to the inner side of the control plates 4, and an air pipe 6 is fixedly connected to the other end of the clamping plate 5. The air pipe 6 is connected to a pneumatic device. Toothed plates 7 and guide plates 8 are fixedly connected to the opposite sides of the support plate 1. The guide plates 8 are provided with grooves for directional restriction. Several cleaning components 9 are movably connected to the guide plates 8. The cleaning components 9 are movably connected to the toothed plates 7 and the control plates 4, and the cleaning components 9 are movably connected to the surface of the workpiece 2. Clamping and rotating components 10 are provided on the support plate 1, and the clamping and rotating components 10 are movably connected to both ends of the workpiece 2.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the cleaning assembly 9 includes a cleaning plate 901, a connecting rod 902, a toothed frame 903, and a wedge 904. The cleaning plate 901 is fixedly connected to the top end of the connecting rod 902, and the toothed frame 903 is fixedly connected to the bottom end of the connecting rod 902. The wedge 904 is fixedly connected to the inner side of the toothed frame 903, and a set of symmetrical inclined surfaces are constructed on the wedge 904. A partition 11 is movably sleeved on the outer side of the connecting rod 902, and a return spring 12 is sleeved on the outer side of the connecting rod 902. The top end of the return spring 12 is fixedly connected to the bottom of the cleaning plate 901, and the bottom end of the return spring 12 is fixedly connected to the top end of the partition 11. The connecting rod 902 movably passes through the inner side of the guide plate 8, and the partition 11... A push rod 13 is movably connected to the top of the guide plate 8. The bottom of the toothed frame 903 has teeth, and the toothed frame 903 meshes with the toothed plate 7 through the teeth. The bottom of the control plate 4 is movably connected to the push rod 13. One end of the push rod 13 is fixed to the push block 14, and the push block 14 is located on the outside of the control plate 4. A set of symmetrical through slots 15 are opened on the toothed frame 903. The push rod 13 moves through the through slots 15 to facilitate the longitudinal movement of the toothed frame 903. When the control plate 4 moves along the slide rail 3, the push rod 13 is movably connected to the through slot 15, so that the toothed frame 903 moves synchronously, thereby realizing the position adjustment of the cleaning plate 901. The front end of the push block 14 abuts against the inclined surface of the wedge block 904.

[0025] Pressing the push block 14 inward causes the push rods 13 to move closer together, so that the front end of the push rod 13 abuts against the inclined surface of the wedge block 904, thereby pushing the wedge block 904, the tooth frame 903, and the connecting rod 902 downward, pulling the cleaning plate 901 downward, so that the cleaning plate 901 separates from the surface of the workpiece 2, and the teeth of the tooth frame 903 separate from the tooth plate 7. At this time, the control plate 4 can be moved along the slide rail 3 until the cleaning plate 901 moves to the bottom of the outer ring of different workpieces 2. During this process, the connecting rod 902 moves along the inner side of the guide plate 8, releasing the push block 14. Under the action of the return spring 12, the tooth frame 903 resets and re-engages with the tooth plate 7. This facilitates the movement of the control plate 4, allowing the tooth plate 7 to release the limit on the tooth frame 903, and the cleaning plate 901 to move downward. The coordinated operation of the actions facilitates the movement of the cleaning plate 901 to different positions of the workpiece 2, thereby cleaning the positions that need to be measured and avoiding the influence of dust particles adhering to the surface of the workpiece 2 on the measurement accuracy.

[0026] like Figure 1 and Figure 4 As shown, the clamping and rotating assembly 10 includes a movable cylinder 1001, a fixed disk 1002, a rotating disk 1003, clamping blocks 1004, and a drive column 1005. The fixed disk 1002 is fixedly connected to the inside of the movable cylinder 1001, and the rotating disk 1003 is movably connected to the inside of the movable cylinder 1001. The fixed disk 1002 has several guide grooves 16, and several clamping blocks 1004 are movably connected to the front side of the fixed disk 1002 through the guide grooves 16. The drive column 1005 has several drive grooves 17, and the inside of each drive groove 17 is movably connected to the drive column 1005. The drive column 1005 is connected to the clamping blocks respectively. The tail end of 1004 is fixedly connected, and the end of workpiece 2 is located inside the clamping block 1004. The movable cylinder 1001 is movably connected to the support plate 1. The rear end of the movable cylinder 1001 is fixedly connected to a servo motor 18, and the output end of the servo motor 18 is fixedly connected to the axis of the rotary disk 1003. The outer side of the movable cylinder 1001 is fixedly connected to a gear ring 19. The outer side of the support plate 1 is movably connected to gears 20 through rotating shafts, and gears 20 mesh with gear rings 19. The outer side of the support plate 1 is fixedly connected to a servo motor 21, and the output end of the servo motor 21 is fixedly connected to the rotating shaft of gear 20.

[0027] Start the servo motor 18, which drives the rotary table 1003 to rotate inside the movable cylinder 1001. This causes the drive groove 17 to rotate around the axis of the rotary table 1003, which in turn drives the drive column 1005 to move synchronously. Due to the guiding effect of the guide groove 16, the clamping blocks 1004 move closer to each other along the guide groove 16, thereby clamping the end of the workpiece 2. This helps to keep the workpiece 2 in a horizontal and stable state. Furthermore, the axis of the workpiece 2 coincides with the axis of the movable cylinder 1001. As a result, when the workpiece 2 rotates, its circumference can be thoroughly cleaned, which facilitates the precise measurement of the workpiece 2 after the clamping plate 5 approaches.

[0028] Working principle: In use, firstly, place both ends of workpiece 2 inside the clamping block 1004. Then, start the servo motor 18 to drive the rotating disk 1003 to rotate inside the movable cylinder 1001, causing the drive groove 17 to rotate around the axis of the rotating disk 1003, driving the drive column 1005 to move synchronously. Due to the guiding effect of the guide groove 16, the clamping blocks 1004 move closer to each other along the guide groove 16, thereby clamping the ends of workpiece 2 and keeping workpiece 2 in a horizontal and stable state, with the axis of workpiece 2 coinciding with the axis of the movable cylinder 1001. Then, adjust the position of the cleaning plate 901 according to the size of the outer ring at different positions of workpiece 2, and at the same time press the push block 14 inward, causing the push rods 13 to move closer to each other, so that the front end of the push rod 13 abuts against the inclined surface of the wedge block 904, thereby pushing the wedge block 904, the toothed frame 903 and the connecting rod 902 to move downward, pulling the cleaning plate 901. 01 moves downward, causing the cleaning plate 901 to separate from the surface of the workpiece 2, and the teeth of the gear frame 903 to separate from the gear plate 7. At this time, the control plate 4 can be moved along the slide rail 3 until the cleaning plate 901 moves to the bottom of the outer ring of different workpieces 2. During this process, the connecting rod 902 moves along the inner side of the guide plate 8, releasing the push block 14. Under the action of the return spring 12, the gear frame 903 resets and re-engages with the gear plate 7. The cleaning plate 901 moves upward and fits tightly against the surface of the workpiece 2. Then, the servo motor 21 is started, driving the gear 20 to rotate. Since the gear 20 meshes with the gear ring 19, it drives the movable cylinder 1001 to rotate, causing the workpiece 2 to rotate around its axis. Under the action of the cleaning plate 901, the surface of the workpiece 2 is cleaned. Then, the clamping plate 5 is controlled by the air pipe 6 to clamp and measure the outer side of the workpiece 2, thereby obtaining the diameter value of the workpiece 2 at different positions.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A hydraulic piston rod diameter measuring device for a hydraulic system, comprising a support plate (1) and a workpiece (2), characterized in that: The support plate (1) is symmetrically arranged. A set of symmetrical slide rails (3) are fixedly connected to the opposite side of the support plate (1). Several control plates (4) are slidably connected to the slide rails (3). Clamping plates (5) are movably connected to the inner side of the control plates (4). Air pipes (6) are fixedly connected to the other end of the clamping plates (5). Toothed plates (7) and guide plates (8) are fixedly connected to the opposite side of the support plate (1). Several cleaning components (9) are movably connected to the guide plates (8). The cleaning components (9) are movably connected to the toothed plates (7) and control plates (4) respectively. The cleaning components (9) are movably connected to the surface of the workpiece (2). Clamping and rotating components (10) are provided on the support plate (1). The clamping and rotating components (10) are movably connected to both ends of the workpiece (2) respectively.

2. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 1, characterized in that: The cleaning assembly (9) includes a cleaning plate (901), a connecting rod (902), a toothed frame (903), and a wedge (904). The cleaning plate (901) is fixedly connected to the top of the connecting rod (902), and the toothed frame (903) is fixedly connected to the bottom of the connecting rod (902). The wedge (904) is fixedly connected to the inner side of the toothed frame (903), and a set of symmetrical inclined surfaces are constructed on the wedge (904).

3. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 2, characterized in that: A partition plate (11) is movably sleeved on the outside of the connecting rod (902), and a return spring (12) is sleeved on the outside of the connecting rod (902). The top end of the return spring (12) is fixedly connected to the bottom of the cleaning plate (901), and the bottom end of the return spring (12) is fixedly connected to the top end of the partition plate (11).

4. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 2, characterized in that: The connecting rod (902) extends through the inner side of the guide plate (8), and the partition (11) is movably connected to the top of the guide plate (8). The bottom of the tooth frame (903) is constructed with teeth, and the tooth frame (903) meshes with the tooth plate (7) through the teeth.

5. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 2, characterized in that: The bottom of the control plate (4) is movably connected to a push rod (13). One end of the push rod (13) is fixed to a push block (14), and the push block (14) is located on the outside of the control plate (4). A set of symmetrical through slots (15) are opened on the tooth frame (903). The push rod (13) moves through the through slots (15), and the front end of the push block (14) abuts against the inclined surface of the wedge block (904).

6. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 1, characterized in that: The clamping and rotating assembly (10) includes a movable cylinder (1001), a fixed disk (1002), a rotating disk (1003), a clamping block (1004), and a drive column (1005). The fixed disk (1002) is fixedly connected to the inside of the movable cylinder (1001), and the rotating disk (1003) is movably connected to the inside of the movable cylinder (1001). The fixed disk (1002) has several guide grooves (16). The front side of the fixed disk (1002) is movably connected to several clamping blocks (1004) through the guide grooves (16). The drive column (1005) has several drive grooves (17), and the inside of each drive groove (17) is movably connected to the drive column (1005). The drive column (1005) is fixedly connected to the tail end of each clamping block (1004), and the end of the workpiece (2) is located inside the clamping block (1004).

7. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 6, characterized in that: The movable cylinder (1001) is movably connected to the support plate (1). The rear end of the movable cylinder (1001) is fixedly connected to a servo motor (18), and the output end of the servo motor (18) is fixedly connected to the axis of the rotary table (1003).

8. The hydraulic piston rod diameter measuring device for a hydraulic system according to claim 6, characterized in that: A gear ring (19) is fixedly connected to the outer side of the movable cylinder (1001), and gears (20) are movably connected to the outer side of the support plate (1) through a rotating shaft. The gears (20) mesh with the gear ring (19). A servo motor (21) is fixedly connected to the outer side of the support plate (1), and the output end of the servo motor (21) is fixedly connected to the rotating shaft of the gear (20).