Hydraulic chuck clamping precision detection device
By setting air outlets and air pipes on the hydraulic chuck, compressed air is used to detect the workpiece clamping accuracy, which solves the problem of difficult control of hydraulic chuck clamping accuracy and realizes precise clamping and processing of workpieces under different precision conditions.
Patent Information
- Application Number
- CN202423125148.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing technologies cannot effectively distinguish and control the clamping accuracy of hydraulic chucks on workpieces, resulting in insufficient machining accuracy for workpieces of different accuracy levels.
Air outlets and air pipes are set on the hydraulic chuck. The workpiece clamping accuracy is detected by the pressure and flow rate changes of compressed air. Portable air guns, pressure gauges, and flow meters are used to monitor gas parameters. Pressure and flow ranges are set according to different machining accuracy requirements.
It achieves precise control over workpiece clamping accuracy, ensuring that workpieces meet clamping accuracy requirements under different machining accuracies, thereby improving machining accuracy.
Smart Images
Figure CN223544818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a hydraulic chuck clamping accuracy detection device, belonging to the technical field of hydraulic chuck auxiliary clamping equipment. Background Technology
[0002] Hydraulic chucks are commonly used clamping tools in machining operations. One prerequisite for precision machining of workpieces is improving the chuck's clamping accuracy. In the precision machining of roller bearings, to improve and differentiate the machining accuracy of roller bearings, it is necessary to ensure effective control of the hydraulic chuck's clamping accuracy; different precision grades of products correspond to different clamping accuracies. Therefore, there is an urgent need for a hydraulic chuck clamping accuracy detection device that can differentiate workpiece clamping accuracy and improve the control and detection capabilities of workpiece clamping accuracy. Summary of the Invention
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a hydraulic chuck clamping accuracy detection device that can be used to distinguish workpiece clamping accuracy and improve the workpiece clamping accuracy control and detection capability, so as to meet the needs of different clamping accuracies for workpieces under different processing accuracies.
[0004] The purpose of this utility model is achieved as follows:
[0005] A hydraulic chuck clamping accuracy testing device includes a hydraulic chuck and a pull rod. The hydraulic chuck body is provided with an air outlet and a connecting seat. The air outlet is located on the clamping end face of the hydraulic chuck body and contacts the workpiece surface. The connecting seat has a central through hole that communicates with the air outlet. The pull rod has an air pipe inside, one end of which is connected to the connecting seat and the other end is provided with an air nozzle connector. The air nozzle connector is connected to an air source.
[0006] Furthermore, the hydraulic chuck has an airtight seat on the center end face of the disc body, and the reference surface of the airtight seat is perpendicular to the central axis of the hydraulic chuck; the air outlet is located on the reference surface of the airtight seat and is connected to the connecting seat through the internal pipeline of the airtight seat and the hydraulic chuck.
[0007] Furthermore, the two ends of the connecting seat are respectively threaded to a hydraulic chuck and an air pipe.
[0008] Furthermore, sealing rings are provided at the connection points of the air outlet, connecting seat, air pipe and air nozzle connector.
[0009] Furthermore, the air source is a portable air gun connected to a compressed air pipeline, with the nozzle of the air gun pressing against the air nozzle connector to supply air to the air pipeline.
[0010] Furthermore, the compressed air pipeline is equipped with a pressure gauge and a flow meter.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention employs an air outlet on a hydraulic chuck and an air pipe inside a pull rod. Compressed air is introduced into the air pipe, and the workpiece clamping accuracy is distinguished by the pressure and flow rate changes of the compressed air in the pipe. This enables the detection of workpiece clamping accuracy and meets the clamping accuracy requirements of workpieces under different machining precision conditions. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a hydraulic chuck clamping accuracy detection device according to the present invention.
[0014] in:
[0015] 1. Hydraulic chuck, 2. Pull rod, 3. Air outlet, 4. Connecting seat, 5. Air pipe, 6. Air nozzle connector, 7. Airtight seat. Detailed Implementation
[0016] See Figure 1 This utility model relates to a hydraulic chuck clamping accuracy detection device, comprising a hydraulic chuck 1 and a pull rod 2. The hydraulic chuck 1 has an air outlet 3 and a connecting seat 4 on its disc body. The air outlet 3 is located on the clamping end face of the hydraulic chuck 1 disc body and contacts the workpiece surface. The connecting seat 4 has a central through hole that communicates with the air outlet 3. An airtight seat 7 is provided on the central end face of the hydraulic chuck 1 disc body. The reference surface of the airtight seat 7 is perpendicular to the central axis of the hydraulic chuck 1 and serves as the reference surface for clamping the workpiece. The air outlet 3 is located on the reference surface of the airtight seat 7 and communicates with the connecting seat 4 through the airtight seat 7 and the internal pipeline of the hydraulic chuck 1. The higher the clamping accuracy of the workpiece, the higher the accuracy of the fit between the workpiece and the reference surface, that is, the less air leakage occurs in the air outlet 3, resulting in less pressure loss and less gas flow in the gas pipeline.
[0017] The pull rod 2 is equipped with an air pipe 5 inside. One end of the air pipe 5 is connected to the connecting seat 4, and the other end is equipped with an air nozzle connector 6. The two ends of the connecting seat 4 are respectively threaded to the hydraulic chuck 1 and the air pipe 5. Sealing rings are provided at the connection points of the air outlet 3, the connecting seat 4, the air pipe 5 and the air nozzle connector 6 to ensure that there are no air leaks in the pipeline that would affect the judgment of clamping accuracy.
[0018] The air nozzle connector 6 is connected to an air source, which is a portable air gun with a compressed air pipeline. A pressure gauge and a flow meter are installed on the compressed air pipeline to monitor the internal air pressure and flow. Air is supplied to the air pipe 5 by manually pressing the nozzle of the air gun against the air nozzle connector 6. After the compressed air enters the air pipe 5 and the connecting seat 4, it is discharged through the air outlet 3 through the internal pipeline of the hydraulic chuck 1 and the airtight seat 7.
[0019] When judging the clamping accuracy of workpieces such as rollers, several clamping accuracy levels are defined according to the different machining accuracy requirements of the rollers. Each clamping accuracy level corresponds to a set of pressure value range and gas flow range. The higher the clamping accuracy level, the higher the pressure value and the lower the gas flow.
[0020] When machining roller workpieces, first clamp the rollers onto the hydraulic chuck 1, ensuring that the roller end face is in close contact with the reference surface of the airtight seat 7, and block the air outlet 3. The operator holds a portable air gun, presses the nozzle against the air nozzle connector 6, pulls the air gun trigger to inject compressed air into the air pipe 5, and maintains this for a period of time, observing the values of the pressure gauge and flow meter to determine whether the clamping accuracy level meets the machining accuracy requirements. If the accuracy level requirements are not met, the workpiece needs to be re-clamped, and the above steps need to be repeated to perform the clamping airtightness test, thereby controlling the clamping accuracy of the rollers and ensuring the machining accuracy of the final product.
[0021] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.
Claims
1. A hydraulic chuck clamping accuracy detection device, comprising a hydraulic chuck (1) and a pull rod (2), characterized in that: The hydraulic chuck (1) has an air outlet (3) and a connecting seat (4) on its disc body; the air outlet (3) is located on the clamping end face of the hydraulic chuck (1) disc body and is in contact with the workpiece surface; the connecting seat (4) has a central through hole that communicates with the air outlet (3); the pull rod (2) has an air pipe (5) inside, one end of the air pipe (5) is connected to the connecting seat (4) and the other end is provided with an air nozzle connector (6); the air nozzle connector (6) is connected to an air source.
2. The hydraulic chuck clamping accuracy detection device according to claim 1, characterized in that: The hydraulic chuck (1) has an airtight seat (7) on the center end face of the disc body. The reference surface of the airtight seat (7) is perpendicular to the central axis of the hydraulic chuck (1). The air outlet (3) is set on the reference surface of the airtight seat (7) and is connected to the connecting seat (4) through the internal pipeline of the airtight seat (7) and the hydraulic chuck (1).
3. The hydraulic chuck clamping accuracy detection device according to claim 1, characterized in that: The two ends of the connecting seat (4) are threadedly connected to the hydraulic chuck (1) and the air pipe (5) respectively.
4. The hydraulic chuck clamping accuracy detection device according to claim 1, characterized in that: Sealing rings are provided at the connection points of the air outlet (3), connecting seat (4), air pipe (5) and air nozzle connector (6).
5. The hydraulic chuck clamping accuracy detection device according to claim 1, characterized in that: The air source is a portable air gun connected to a compressed air pipeline. The nozzle of the air gun presses against the air nozzle connector (6) to supply air to the air pipe (5).
6. The hydraulic chuck clamping accuracy detection device according to claim 5, characterized in that: The compressed air pipeline is equipped with a pressure gauge and a flow meter.