Electric spindle test bench and test method

Abstract

The present invention provides an electric spindle test bench, comprising a platform body, a vertical plate arranged on one side of the platform body, a control box arranged on the vertical plate, a pressure detection air inlet, a pressure detection air return port, a cooling hydraulic oil inlet, a cooling hydraulic oil outlet, a cooling water inlet, a cooling water outlet, a vibration sensor, a temperature sensor, an air inlet pipe, an air return pipe, an oil inlet pipe, an oil return pipe, a water inlet pipe, and a water return pipe respectively connected to the pressure detection air inlet, the pressure detection air return port, the cooling hydraulic oil inlet, the cooling hydraulic oil outlet, the cooling water inlet, and the cooling water outlet, and an operating box connected to the vertical plate through a connecting rod mechanism. The electric spindle test bench integrates vibration testing and temperature testing during the operation of the electric spindle, is suitable for electric spindles of different specifications, and is also suitable for oil-cooled or water-cooled electric spindles, and has a wide test range and a wide range of application.

Description

Technical Field

[0001] The invention relates to the technical field of electric spindle test benches, and in particular to an electric spindle test bench and a test method. Background Art

[0002] As a high-precision machine tool component, the electric spindle currently occupies an important position in machine tools. As the most critical component of high-speed CNC machine tools, its performance largely determines the processing accuracy and production efficiency of the entire high-speed machine tool.

[0003] Since the vibration and runout of the electric spindle directly affect the processing accuracy of the product and the life of the electric spindle, it is particularly important to monitor and analyze the vibration state of the electric spindle, including the temperature, speed, vibration, cooling flow rate, etc. of the electric spindle. In the existing technology, multiple detection devices are required to complete this, which is inefficient. Summary of the invention

[0004] The technical problem solved by the present invention is to provide an electric spindle test bench.

[0005] In order to solve the above technical problems, the present invention provides an electric spindle test bench, including a platform body, a vertical plate arranged on one side of the platform body, a control box, a pressure detection air inlet, a pressure detection air return port, a cooling hydraulic oil inlet, a cooling hydraulic oil outlet, a cooling water inlet, a cooling water outlet, a vibration sensor, a temperature sensor, an air intake pipe, an air return pipe, an oil inlet pipe, an oil return pipe, a water inlet pipe, and a water return pipe respectively connected to the pressure detection air inlet, the pressure detection air return port, the cooling hydraulic oil inlet, the cooling hydraulic oil outlet, the cooling water inlet, and the cooling water outlet, and an operating box connected to the vertical plate through a connecting rod mechanism.

[0006] Furthermore, a plurality of T-shaped grooves are evenly distributed on the platform body along its length and width directions.

[0007] Furthermore, an adjustable electric spindle test fixing block is arranged in the T-slot, and positioning hydraulic cylinders are respectively arranged at both ends of the electric spindle test fixing block.

[0008] Furthermore, the pressure detection air inlet, the pressure detection air return port, the cooling hydraulic oil inlet, the cooling hydraulic oil outlet, the cooling water inlet, and the cooling water outlet are respectively provided with electric control valves.

[0009] Furthermore, the vibration sensor includes at least two connected to the control box, and the at least two vibration sensors are respectively used to be connected to the electric spindle to detect the vibration of the electric spindle.

[0010] Furthermore, a power switch connected to the control box is also provided on the vertical plate.

[0011] Furthermore, the operation box is provided with a display panel, an emergency stop button, a start button, a stop button, a spindle ratio adjustment knob and a feed knob.

[0012] Furthermore, the connecting rod mechanism and the vertical plate are hinged.

[0013] The present invention also provides an electric spindle testing method, comprising the electric spindle testing bench as described in any one of the above, the method comprising the following steps:

[0014] S1. Fix the electric spindle on the platform body;

[0015] S2, connected to the electric spindle through the air inlet pipe, air return pipe, oil inlet pipe and / or water inlet pipe, oil return pipe and / or water return pipe respectively;

[0016] S3, respectively setting the vibration sensor and the temperature sensor on the electric spindle;

[0017] S4, start the control box and the operation box, let air in through the air inlet pipe, let oil and / or water in through the oil inlet pipe and / or water inlet pipe;

[0018] S5, starting the electric spindle to rotate, and the vibration sensor and the temperature sensor respectively perform vibration detection and temperature detection on the electric spindle.

[0019] When the electric spindle test bench of the present invention is in use, the electric spindle to be tested is fixed on the platform body, and is connected to the air inlet, exhaust port, oil inlet, oil outlet, water inlet and water outlet of the electric spindle through the air inlet pipe, air return pipe, oil inlet pipe and / or water inlet pipe, oil return pipe and / or water return pipe respectively, and the vibration sensor and the temperature sensor are installed on the electric spindle. Then, the electric spindle test bench is started, air is taken in through the pressure detection air inlet, cooling oil or cooling water is taken in through the cooling hydraulic oil inlet and / or cooling water inlet respectively, and the electric spindle is started. The vibration sensor and the temperature sensor respectively detect the vibration and temperature of the electric spindle during rotation. The electric spindle test bench integrates vibration testing and temperature testing of the electric spindle during operation, is suitable for electric spindles of different specifications, and is also suitable for oil-cooled or water-cooled electric spindles. It has a wide test range and a wide range of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the electric spindle test bench of the present invention;

[0022] Figure 2 It is a principle schematic diagram of the electric spindle test bench of the present invention;

[0023] Figure 3 is a flow chart of the electric spindle testing method of the present invention;

[0024] The markings in the figure are:

[0025] Platform body 1, T-slot 11, vertical plate 2, power switch 21, control box 3, pressure detection air inlet 4, pressure detection air return port 41, cooling hydraulic oil inlet 5, cooling hydraulic oil outlet 51, cooling water inlet 6, cooling water outlet 61, vibration sensor 62, temperature sensor 63, connecting rod mechanism 7, operation box 71, display panel 72, emergency stop button 73, start button 74, stop button 75, spindle ratio adjustment knob 76, feed knob 77, electric spindle 8, positioning hydraulic cylinder 9. DETAILED DESCRIPTION

[0026] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0027] See also Figure 1 to Figure 2As shown, an electric spindle test bench includes a platform body 1, a vertical plate 2 arranged on one side of the platform body 1, a control box 3, a pressure detection air inlet 4, a pressure detection air return port 41, a cooling hydraulic oil inlet 5, a cooling hydraulic oil outlet 51, a cooling water inlet 6, a cooling water outlet 61, a vibration sensor 62, and a temperature sensor 63 arranged on the vertical plate 2, an air intake pipe, an air return pipe, an oil inlet pipe, an oil return pipe, a water inlet pipe, and a water return pipe respectively connected to the pressure detection air inlet 4, the pressure detection air return port 41, the cooling hydraulic oil inlet 5, the cooling hydraulic oil outlet 51, the cooling water inlet 6, and the cooling water outlet 61, and an operating box 71 connected to the vertical plate 2 through a connecting rod mechanism 7. When in use, the electric spindle to be tested is fixed on the platform body, and is connected to the air inlet, exhaust port, oil inlet, oil outlet, water inlet and water outlet of the electric spindle 8 to be tested through the air inlet pipe, air return pipe, oil inlet pipe and / or water inlet pipe, oil return pipe and / or water return pipe respectively, and the vibration sensor and the temperature sensor are installed on the electric spindle. Then, the electric spindle test bench is started, air is taken in through the pressure detection air inlet 4, and cooling oil or cooling water is taken in through the cooling hydraulic oil inlet 5 and / or cooling water inlet 6 respectively, and the electric spindle is started. The vibration sensor and the temperature sensor respectively detect the vibration and temperature of the electric spindle during rotation. The electric spindle test bench integrates vibration testing and temperature testing during the operation of the electric spindle, is suitable for testing electric spindles of different specifications, and is also suitable for oil-cooled or water-cooled electric spindles, has a wide test range and a wide range of application.

[0028] The platform body 1 is evenly provided with a plurality of T-slots 11 along its length and width. An adjustable electric spindle test fixing block (not shown) is provided in the T-slot 11, and positioning hydraulic cylinders 9 are provided at both ends of the electric spindle test fixing block. The T-slots 11 are used to install the electric spindle test fixing blocks, respectively, to facilitate position adjustment and replacement.

[0029] The pressure detection air inlet 4 , the pressure detection air return port 41 , the cooling hydraulic oil inlet 5 , the cooling hydraulic oil outlet 51 , the cooling water inlet 6 , and the cooling water outlet 61 are respectively provided with electric control valves.

[0030] The vibration sensor includes at least two connected to the control box, and the at least two vibration sensors are respectively used to be connected to the electric spindle to detect the vibration of the electric spindle. At least two vibration sensors can be respectively arranged at both ends of the electric spindle to synchronously test the vibration of the two ends of the electric spindle, thereby improving the test accuracy.

[0031] The vertical plate 2 is also provided with a power switch 21 connected to the control box 3. The power switch can be arranged at an end away from the control box 3, so as to avoid accidental contact during operation and improve the reliability of the modified electric spindle test bench.

[0032] The operation box 71 is provided with a display panel 72 , an emergency stop button 73 , a start button 74 , a stop button 75 , a spindle ratio adjustment knob 76 and a feed knob 77 .

[0033] The connecting rod mechanism 7 and the vertical plate 2 are hinged.

[0034] Combination Figure 2 and Figure 3 As shown, the present invention also provides an electric spindle testing method, comprising the electric spindle testing bench as described in any one of the above, the method comprising the following steps:

[0035] S1, fix the electric spindle 8 on the platform body 1;

[0036] S2, connected to the electric spindle 8 through the air inlet pipe, the air return pipe, the oil inlet pipe and / or the water inlet pipe, the oil return pipe and / or the water return pipe respectively;

[0037] S3, respectively setting the vibration sensor 62 and the temperature sensor 63 on the electric spindle 8;

[0038] S4, start the control box 3 and the operation box 71, let air in through the air inlet pipe, and let oil and / or water in through the oil inlet pipe and / or water inlet pipe;

[0039] S5, start the electric spindle 8 to rotate, and the vibration sensor 62 and the temperature sensor 63 respectively perform vibration detection and temperature detection on the electric spindle.

[0040] The above examples are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric spindle test bench, characterized in that: It includes a platform body, a vertical plate arranged on one side of the platform body, a control box, a pressure detection air inlet, a pressure detection air return port, a cooling hydraulic oil inlet, a cooling hydraulic oil outlet, a cooling water inlet, a cooling water outlet, a vibration sensor, a temperature sensor, an air intake pipe, an air return pipe, an oil inlet pipe, an oil return pipe, a water inlet pipe, and a water return pipe respectively connected to the pressure detection air inlet, the pressure detection air return port, the cooling hydraulic oil inlet, the cooling hydraulic oil outlet, the cooling water inlet, and the cooling water outlet, and an operating box connected to the vertical plate through a connecting rod mechanism.

2. The electric spindle test bench according to claim 1, characterized in that: The platform body is evenly provided with a plurality of T-shaped grooves along the length and width directions thereof.

3. The electric spindle test bench according to claim 2, characterized in that: An adjustable electric spindle test fixing block is arranged in the T-slot, and positioning hydraulic cylinders are respectively arranged at both ends of the electric spindle test fixing block.

4. The electric spindle test bench according to claim 1, characterized in that: The pressure detection air inlet, the pressure detection air return port, the cooling hydraulic oil inlet, the cooling hydraulic oil outlet, the cooling water inlet and the cooling water outlet are respectively provided with electric control valves.

5. The electric spindle test bench according to claim 1, characterized in that: The vibration sensors include at least two connected to the control box, and the at least two vibration sensors are respectively used to be connected to the electric spindle to detect the vibration of the electric spindle.

6. The electric spindle test bench according to claim 1, characterized in that: The vertical plate is provided with a power switch connected to the control box.

7. The electric spindle test bench according to claim 1, characterized in that: The operation box is provided with a display panel, an emergency stop button, a start button, a stop button, a spindle ratio adjustment knob and a feed knob.

8. The electric spindle test bench according to claim 1, characterized in that: The connecting rod mechanism and the vertical plate are hinged.

9. A method for testing an electric spindle, characterized in that: The electric spindle test bench according to any one of claims 1 to 8, wherein the method comprises the following steps: S1. Fix the electric spindle on the platform body; S2, connected to the electric spindle through the air inlet pipe, air return pipe, oil inlet pipe and / or water inlet pipe, oil return pipe and / or water return pipe respectively; S3, respectively setting the vibration sensor and the temperature sensor on the electric spindle; S4, start the control box and the operation box, let air in through the air inlet pipe, let oil and / or water in through the oil inlet pipe and / or water inlet pipe; S5, starting the electric spindle to rotate, and the vibration sensor and the temperature sensor respectively perform vibration detection and temperature detection on the electric spindle.

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