Hydraulic chuck and oil cylinder comprehensive performance testing machine

Abstract

The invention discloses a hydraulic chuck and oil cylinder comprehensive performance testing machine which structurally comprises a base, a control electric cabinet, a driving device, a spindle box, a flow sensor, a pressure sensor, a hydraulic station, a temperature sensor and a PLC display screen. The hydraulic station is connected with the hydraulic oil cylinder through a hydraulic pipe, the flow sensor and the pressure sensor respectively transmit flow and pressure data of an oil inlet path and an oil outlet path to the PLC display screen, and the temperature sensor is arranged above the hydraulic oil cylinder. In the test process of the push-pull force of the hydraulic oil cylinder, the flow sensor and the pressure sensor transmit data to the PLC display screen, performance detection is achieved through preset parameter range comparison, it is guaranteed that the chuck clamping force, the push-pull force of the oil cylinder, the temperature rise, the oil discharge amount and other indexes meet the expected requirements, the fault rate of the hydraulic chuck and the oil cylinder is effectively reduced, and the test efficiency is improved. The quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chuck and oil cylinder production, in particular to a hydraulic chuck and oil cylinder comprehensive performance testing machine. Background Art

[0002] Hydraulic chucks and cylinders are widely used in machine tool processing, manufacturing and other fields. In the field of machine tool processing, hydraulic chucks are used to clamp rotating workpieces to ensure stable operation of workpieces during high-speed cutting, improving processing efficiency and precision. In the manufacturing field, hydraulic chucks are used to manufacture parts for large industrial equipment such as aerospace, automobiles, and engineering machinery, which can help maintain the surface shape of workpieces and achieve high-precision processing.

[0003] However, the performance of domestically produced hydraulic chucks and cylinders is unstable, including the clamping force of the chuck and the push-pull force of the cylinder, temperature rise, and oil discharge volume, which require a lot of testing. At present, most domestic manufacturers have a relatively simple test. The chuck and cylinder are installed on the spindle of a lathe for rotation and grinding. If there is no locking within the specified time, it is qualified; the flow rate of the oil discharge port is simply measured by placing a measuring cup underneath and measuring the oil volume at a specified time for estimation; the temperature rise of the shell is generally measured simply with an infrared temperature gun or a thermometer, and some manufacturers do not even measure this data. This method is too simple, and there is no accurate and comprehensive data to support it to verify the reliability of the cylinder and chuck. Whether there are differences in performance between batches of chucks and cylinders, and the stability of the manufacturing process cannot be guaranteed. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic chuck and cylinder comprehensive performance testing machine, which can quickly and efficiently detect the performance of the chuck and the cylinder by setting up multiple sensors, effectively reducing the failure rate of the hydraulic chuck and the cylinder and improving the quality.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a hydraulic chuck and cylinder comprehensive performance testing machine, whose structure includes a base, a control cabinet, a drive device, a spindle box, a flow sensor, a pressure sensor, a hydraulic station, a temperature sensor and a PLC display screen, a control cabinet and a hydraulic station are provided on one side of the base, a spindle box is provided above the base, a drive device is provided on one side of the spindle box, one end of the spindle in the spindle box is connected to the hydraulic chuck, and the other end of the spindle is connected to the hydraulic cylinder, the hydraulic station is connected to the hydraulic cylinder through a hydraulic pipe, the flow sensor and the pressure sensor are connected in series with the hydraulic pipe, the flow sensor and the pressure sensor transmit the flow and pressure data of the inlet and outlet oil circuits to the PLC display screen respectively, and the temperature sensor is provided above the hydraulic cylinder, and the temperature sensor transmits the temperature data of the surface of the hydraulic cylinder to the PLC display screen.

[0006] Furthermore, a safety bracket is provided on one side of the upper spindle box of the base, the fixed side of the hydraulic cylinder is connected to the safety bracket, and an ultrasonic flowmeter is provided on the oil drain pipe of the hydraulic cylinder, and the ultrasonic flowmeter transmits the flow data of the oil drain port to the PLC display screen.

[0007] Furthermore, an oil return cup and a reflux filter are provided at the lower portion of the oil drain pipe of the hydraulic cylinder.

[0008] Furthermore, the temperature sensor is connected to the safety bracket via an adjustable support.

[0009] Furthermore, a safety switch is also provided on the fixing bracket.

[0010] Furthermore, the driving device includes a driving motor and a V-belt. The driving motor is reversely installed in the base. The driving motor and the spindle box are driven by the V-belt to provide power for the spindle.

[0011] Furthermore, the hydraulic chuck and the hydraulic cylinder are connected to both ends of the main shaft through flanges and fasteners respectively.

[0012] Furthermore, a left door, a left protective cover, a sliding door, a right protective cover and a motor protective cover are provided on the outside above the base from left to right in sequence, a right door is provided on one side of the right protective cover, and an observation window is provided on the front side of the sliding door.

[0013] Furthermore, a front skirt is provided on one side of the upper portion of the base.

[0014] Beneficial effects of the present invention:

[0015] The comprehensive performance testing equipment for the hydraulic chuck and the oil cylinder of the present invention has a hydraulic station and a control electric cabinet on one side of the base, and the hydraulic chuck and the oil cylinder are installed on both ends of the spindle box. By connecting a flow sensor and a pressure sensor in series on the hydraulic pipe, the flow sensor and the pressure sensor transmit data to the PLC display screen during the test of the push-pull force of the hydraulic cylinder. The performance is tested by comparing the preset parameter range to ensure that the chuck clamping force and the push-pull force, temperature rise, oil unloading amount and other indicators of the cylinder meet the expected requirements, thereby effectively reducing the failure rate of the hydraulic chuck and the oil cylinder and improving the quality.

[0016] By installing an infrared temperature sensor above the hydraulic cylinder, the temperature sensor can transmit the temperature data of the hydraulic cylinder shell to the PLC touch screen, and realize the temperature detection during the operation of the hydraulic cylinder by comparing the preset temperature parameters. Since the height of the infrared temperature sensor is adjustable, the temperature data detection is more accurate.

[0017] Since a safety switch is installed on the safety bracket, when the hydraulic cylinder is abnormally locked during the test, it will rotate with the main shaft and trigger the safety switch. The main shaft will stop rotating immediately and the system will sound an alarm to ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0020] Figure 3 It is a schematic diagram of the external overall structure of the present invention;

[0021] Figure 4 for Figure 1 The main view;

[0022] Figure 5 for Figure 4 A partial enlarged view.

[0023] In the figure:

[0024] 1. Base; 2. Control cabinet; 3. Drive motor; 4. V-belt; 5. Hydraulic chuck; 6. Flow sensor; 7. Pressure sensor; 8. Hydraulic station; 9. Spindle box; 10. Infrared temperature sensor; 11. Hydraulic cylinder; 12. Safety switch; 13. PLC touch screen; 14. Safety bracket; 15. Ultrasonic flowmeter; 16. Oil return cup; 17. Oil return filter; 18. Left door; 19. Left guard; 20. Front skirt; 21. Sliding door; 22. Observation window; 23. Right guard; 24. Right door; 25. Motor guard. DETAILED DESCRIPTION

[0025] A hydraulic chuck and cylinder comprehensive performance testing machine of the present invention is described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 5As shown, the present invention provides a technical solution: a hydraulic chuck and oil cylinder comprehensive performance test machine, which structure includes a base 1, a control cabinet 2, a driving device, a spindle box 9, a flow sensor 6, a pressure sensor 7, a hydraulic station 8, an infrared temperature sensor 10 and a PLC display screen. The control cabinet 2 and the hydraulic station 8 are provided on one side of the base 1, and the control cabinet is equipped with electrical components. A spindle box 9 is provided above the base 1, and a driving device is provided on one side of the spindle box 9. The driving device drives the rotation of the spindle. One end of the spindle in the spindle box is connected to the hydraulic chuck 5, and the other end of the spindle is connected to the hydraulic cylinder 11. The hydraulic chuck and the hydraulic cylinder are connected to the two ends of the spindle through flanges and fixing bolts respectively. Different types of hydraulic chucks and hydraulic cylinders can be installed by loading and unloading flanges, so that various types of chucks and cylinders can be tested, and the applicability is strong. The hydraulic station 8 is connected to the hydraulic cylinder 11 through a hydraulic pipe, and the flow sensor 6 and the pressure sensor 7 are connected in series with the hydraulic pipe. The flow sensor and the pressure sensor transmit the flow and pressure data of the inlet and outlet oil circuits to the PLC display screen respectively, and the performance of the hydraulic chuck and the cylinder is judged whether it is qualified by the data on the PLC display screen. The temperature sensor is arranged above the hydraulic cylinder 11, and the temperature sensor transmits the temperature data of the surface of the hydraulic cylinder to the PLC display screen. The PLC display screen is a PLC touch screen 13, which is more convenient to operate and use.

[0027] A safety bracket 14 is provided on one side of the upper spindle box of the base 1, and the fixed side of the hydraulic cylinder 11 is connected to the safety bracket 14. An ultrasonic flowmeter 15 is provided on the oil drain pipe of the hydraulic cylinder, and the ultrasonic flowmeter 15 transmits the flow data of the oil drain port to the PLC touch screen. At the same time, the hydraulic oil flowing out of the oil discharge port flows into the return oil cup 16, and the built-in temperature sensor transmits the temperature data to the PLC touch screen. The return oil cup 16 and the return oil filter 17 are provided at the lower part of the oil drain pipe of the hydraulic cylinder.

[0028] like Figure 2 As shown, the front of the hydraulic cylinder 11 is connected to the safety bracket 14, so that the front of the cylinder is fixed while the rear of the cylinder rotates actively. The side wall of the fixed section at the front of the cylinder is provided with an oil inlet and outlet connected to the hydraulic station. The hydraulic station and the cylinder are connected through a hydraulic pipe. The flow sensor 6 and the pressure sensor 7 are connected in series on the hydraulic pipe. The flow sensor 6 and the pressure sensor 7 are fixed on the upper part of the hydraulic station 8. The test work of the hydraulic chuck and the cylinder is realized through the data fed back by the flow sensor and the pressure sensor on the PLC display screen.

[0029] The temperature sensor 6 is connected to the safety bracket 14 via an adjustable support, the lower end of the adjustable support is fixedly connected to the safety bracket, and the height of the temperature sensor can be adjusted by adjusting the upper end of the support, thereby ensuring the effective distance between the temperature sensor and the surface of the hydraulic cylinder and improving the detection accuracy.

[0030] The safety bracket is also provided with a safety switch 12. When the hydraulic cylinder is abnormally locked during the test, it will rotate with the main shaft, triggering the safety switch 12. The main shaft will stop rotating immediately, and the system will sound an alarm to ensure safety.

[0031] The driving device includes a driving motor 3 and a V-belt 4. The driving motor 3 is reversely installed in the base 1. The driving motor 3 and the spindle box 9 are driven by the V-belt 4 to provide power to the spindle. However, it is not limited to motor belt drive, as long as the rotation of the spindle can be achieved, it is a variation of the driving device structure in the present invention.

[0032] In order to make the testing machine of the present invention beautiful as a whole and safe to use, a left door 18, a left shield 19, a sliding door 21, a right shield 23 and a motor shield 25 are sequentially arranged on the upper part of the base from left to right, a right door 24 is arranged on one side of the right shield 23, and an observation window 22 is arranged on the front side of the sliding door 21, through which the working conditions inside the testing machine can be observed in real time. A front skirt 20 is also arranged on one side of the upper part of the base 1.

[0033] During the test, the driving motor 3 rotates and transmits the power to the spindle in the spindle box 9 through the V-belt 4. The spindle rotates, and the hydraulic cylinder 11 and the hydraulic chuck 5 installed at the front and rear rotate accordingly; the hydraulic station 8 is connected to the hydraulic cylinder 11 through a hydraulic pipe to provide pushing and pulling power, and the flow sensor 6 and the pressure sensor 7 are connected in series in the middle to transmit the flow and pressure data of the inlet and outlet oil circuits to the PLC touch screen; the temperature sensor above the hydraulic cylinder can transmit its shell temperature data to the PLC touch screen; the ultrasonic flowmeter 15 below the hydraulic cylinder transmits the flow data of the oil unloading port to the PLC touch screen, and at the same time, the hydraulic oil flowing out of the oil unloading port flows into the oil return cup 16, and the built-in temperature sensor transmits the temperature data to the PLC touch screen.

[0034] The test program is preset in the PLC. The spindle speed will gradually increase from low to high (100-6000r / min), and stay at each speed for 15 seconds. At the same time, the push and pull of the oil cylinder drives the chuck to clamp and loosen. At this time, each sensor will collect relevant data, including the oil inlet pipe flow, oil inlet pipe pressure, oil outlet pipe flow, oil outlet pipe pressure, oil unloading port temperature, oil unloading port flow, cylinder shell temperature, spindle speed, etc., and send them to the PLC touch screen. All data can be displayed on the PLC touch screen, and relevant tables and curves can be generated. The detection range of each parameter is preset in the PLC. When the parameter exceeds the detection range, the corresponding data on the PLC touch screen will flash and alarm to remind the test personnel; when the parameter is not abnormal, the PLC can generate relevant tables and curves to complete the test.

[0035] The above description is only used to illustrate some principles of the present invention. This specification is not intended to limit the present invention to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for by the present invention.

[0036] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art.

Claims

1. A hydraulic chuck and cylinder comprehensive performance testing machine, characterized in that: It includes a base, a control cabinet, a drive device, a spindle box, a flow sensor, a pressure sensor, a hydraulic station, a temperature sensor and a PLC display screen. A control cabinet and a hydraulic station are provided on one side of the base, a spindle box is provided above the base, a drive device is provided on one side of the spindle box, one end of the spindle in the spindle box is connected to the hydraulic chuck, and the other end of the spindle is connected to the hydraulic cylinder. The hydraulic station is connected to the hydraulic cylinder through a hydraulic pipe, and the flow sensor and the pressure sensor are connected in series with the hydraulic pipe. The flow sensor and the pressure sensor transmit the flow and pressure data of the inlet and outlet oil circuits to the PLC display screen respectively. The temperature sensor is provided above the hydraulic cylinder, and the temperature sensor transmits the temperature data on the surface of the hydraulic cylinder to the PLC display screen.

2. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1, characterized in that: A safety bracket is provided on one side of the upper spindle box of the base, the fixed side of the hydraulic cylinder is connected to the safety bracket, and an ultrasonic flowmeter is provided on the oil drain pipe of the hydraulic cylinder, and the ultrasonic flowmeter transmits the flow data of the oil drain port to the PLC display screen.

3. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1 or 2, characterized in that: An oil return cup and a reflux filter are arranged at the lower part of the oil drain pipe of the hydraulic oil cylinder.

4. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1 or 2, characterized in that: The temperature sensor is connected to the safety bracket via an adjustable support.

5. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 2, characterized in that: The fixing bracket is also provided with a safety switch.

6. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1, characterized in that: The driving device comprises a driving motor and a V-belt. The driving motor is reversely installed in the base. The driving motor and the main shaft box are driven by the V-belt to provide power for the main shaft.

7. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1, characterized in that: The hydraulic chuck and the hydraulic oil cylinder are connected to the two ends of the main shaft through flanges and fasteners respectively.

8. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 1, characterized in that: A left door, a left guard, a sliding door, a right guard and a motor guard are arranged on the outside of the upper part of the base from left to right in sequence, a right door is arranged on one side of the right guard, and an observation window is arranged on the front side of the sliding door.

9. A hydraulic chuck and cylinder comprehensive performance testing machine according to claim 8, characterized in that: A front skirt plate is also provided on one side of the upper part of the base.

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