A comprehensive detection device for run-in of an electric spindle

Abstract

The present application relates to the technical field of motorized spindle detection, in particular to a motorized spindle running-in comprehensive detection device. It comprises a running-in table rack, the top of the running-in table rack is fixed with a top plate by screws, and an oil-gas lubricating device is installed on one side of the running-in table rack, the pipeline of the oil-gas lubricating device is arranged in the interior of the running-in table rack, the upper side of the top plate is provided with a motorized spindle fixing frame, and the side of the running-in table rack away from the oil-gas lubricating device is provided with a running-in table system support. The motorized spindle fixing frame is set to adjust the position according to the length of the motorized spindle and fix it, so that the device can be suitable for motorized spindles of different lengths. At the same time, by fixing the motorized spindle, the position deviation of the motorized spindle can be prevented during detection, ensuring that the jumping situation does not occur in the process of adjusting the parameters of the motorized spindle, and improving the safety and accuracy of the motorized spindle detection.

Description

Technical Field

[0001] This invention relates to the field of electric spindle testing technology, and more specifically, to a comprehensive testing device for electric spindle running-in. Background Technology

[0002] With the development of industrial processes, the research and development of industrial automation and intelligent testing equipment is a core element of high-quality development in the manufacturing industry. China's high-end machine tool industry is booming. As the core of high-end machine tools, the performance of electric spindles directly determines the precision of machining equipment.

[0003] The rapid development of intelligent manufacturing and high-speed, high-precision machining technologies has placed almost stringent demands on the dynamic performance, thermal stability, and lifespan of electric spindles. However, traditional testing methods have significant limitations. First, they cannot systematically test the maximum spindle speed, vibration value, front and rear bearing temperatures, tool change air blowing, and air seal performance on a single platform, making the process cumbersome and inefficient. Second, the consistency and comparability of running-in data are poor, failing to intuitively reflect the overall spindle running-in status. Furthermore, early warning systems for spindle running-in cannot promptly interrupt alarms to prevent economic losses to the spindle. Therefore, we urgently need a comprehensive, efficient, and safe integrated testing device for electric spindle running-in. Summary of the Invention

[0004] The purpose of this invention is to provide a comprehensive testing device for the running-in of electric spindles, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a comprehensive testing device for electric spindle running-in is provided, comprising a running-in table frame, a top plate fixed to the top of the running-in table frame with screws, the interior of the running-in table frame being a hollow structure with thick iron metal plates installed on its side walls, and an oil-air lubrication device installed on one side of the running-in table frame, the pipeline of the oil-air lubrication device being located inside the running-in table frame, the oil-air lubrication device being used to supply oil to the bearings and screw components of the electric spindle, an electric spindle fixing bracket being provided on the upper side of the top plate, the electric spindle fixing bracket being adjusted in position according to the size of the electric spindle and fixing the position of the electric spindle on the top plate, and a running-in table system support being provided on the side of the running-in table frame away from the oil-air lubrication device.

[0006] As a further improvement to this technical solution, the electric spindle fixing frame includes two vertically arranged bottom support plates. The lower side of the bottom support plate is symmetrically fixed with track bars on the upper side of the top plate. The two ends of the bottom support plate are respectively set on the two track bars. The distance between the two bottom support plates is adjusted according to the length of the electric spindle, and they are fixed to the track bars with screws.

[0007] As a further improvement to this technical solution, a V-shaped groove is provided in the middle of the upper side of the bottom support plate, and an n-shaped pressure rod is fixed to the upper side of the bottom support plate with screws. The groove of the bottom support plate and the pressure rod form a space for placing the electric spindle, and the electric spindle is set between the bottom support plate and the pressure rod.

[0008] As a further improvement to this technical solution, a pressure plate is provided at the middle position of the lower side of the pressure plate, and a screw is rotatably connected to the pressure plate. The screw thread passes through the pressure plate, and a sliding rod is fixed at the upper side of the pressure plate near both ends. The sliding rod slides through the pressure plate.

[0009] As a further improvement to this technical solution, the running-in table system support includes a support rod rotatably connected to the side wall of the running-in table frame. The support rod rotates in a horizontal plane, and a CNC panel is fixed to one end of the support rod.

[0010] As a further improvement to this technical solution, a cable outlet is provided on one side of the running-in table frame, and a transparent acrylic crystal plate is installed on the cable outlet.

[0011] As a further improvement to this technical solution, the oil-gas lubrication device includes a gas system, an oil system, and a mixing system. The gas system supplies gas to the mixing system, the oil system supplies oil to the mixing system, and the mixing system mixes the received oil and gas and supplies it to the electric spindle.

[0012] As a further improvement to this technical solution, the gas system includes a gas source for providing high-pressure gas and a water filter for filtering moisture from the gas source. An air filter is connected to the water filter, and the air filter is used to filter impurity particles from the gas filtered by the water filter. A solenoid valve is connected to the air filter.

[0013] As a further improvement to this technical solution, the oil system includes an oil quantity controller and an oil supply pump. The delivery ends of the oil supply pump and the oil quantity controller are connected to a filter pipe. The filter pipe filters impurities from the oil, and the oil passing through the filter pipe is delivered to the mixing system. The oil quantity controller controls the oil supply according to the status of the oil supply pump.

[0014] As a further improvement to this technical solution, the mixing system includes several mixing valves. The mixing valves are used to receive oil and gas provided by the oil system and the gas system, and to turn the oil and gas into fine particles. Several oil and gas sensors are connected to the mixing valves. One end of the oil and gas sensor delivers the mixed oil and gas to the electric spindle through a hose.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this electric spindle running-in comprehensive testing equipment, the CNC panel can be rotated at a large angle through the rotational connection between the support rod and the running-in table frame. This allows the operator to adjust the angle of the CNC panel according to their own situation, thereby achieving the effect of flexible operation on the CNC panel and facilitating the operator's use of the device.

[0016] 2. In this electric spindle running-in comprehensive testing equipment, the electric spindle fixing bracket is set up to adjust and fix the position according to the length of the electric spindle, so that the device can be used for electric spindles of different lengths. At the same time, by fixing the electric spindle, it can prevent the electric spindle from shifting position during testing, ensuring that there will be no jumping during the adjustment of electric spindle parameters, thus improving the safety and accuracy of electric spindle testing. In addition, the side wall of the running-in table frame is made of thick iron metal plate, which improves the stability of the overall device, ensures the stability of the electric spindle during running-in, and prevents the test results from being affected by shaking during the running-in of the electric spindle.

[0017] 3. In this electric spindle running-in comprehensive testing equipment, an oil-air lubrication device mixes air and oil together to form an oil mist, which then delivers fine particles to the bearings and screw components of the electric spindle. This reduces the wear on the bearings and screw components during the high-speed rotation of the electric spindle, ensuring the normal use of the electric spindle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the oil-air lubrication device of the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Running-in table frame; 11. Top plate; 2. Electric spindle fixing frame; 21. Bottom support plate; 22. Pressure cover rod; 23. Pressure plate; 24. Screw; 25. Track bar; 3. Running-in table system bracket; 31. Support rod; 32. CNC panel; 4. Oil and gas lubrication device. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1. Please refer to Example 1. Figures 1-2 As shown, the purpose of this embodiment is to provide a comprehensive testing device for electric spindle running-in, including a running-in table frame 1. The running-in table frame 1 has a hollow internal structure, and thick iron metal plates are installed on its side walls. By installing thick iron metal plates, the overall weight of the running-in table frame 1 is increased to ensure stable placement. This improves the stability of the overall device during the running-in of the electric spindle, ensuring the stability of the electric spindle during running-in and preventing the test results from being affected by shaking during the running-in of the electric spindle.

[0023] An oil-air lubrication device 4 is installed on one side of the running-in table frame 1. The pipeline of the oil-air lubrication device 4 is located inside the running-in table frame 1. The oil-air lubrication device 4 is used to supply oil to the bearings and screw components of the electric spindle. The oil-air lubrication device 4 mixes air and oil together to form an oil mist, and then delivers fine particles to the bearings and screw components of the electric spindle, thereby reducing the wear on the bearings and screw components during the high-speed rotation of the electric spindle and ensuring the normal operation of the electric spindle. At the same time, a cable outlet is opened on one side of the running-in table frame 1. A transparent acrylic crystal plate is installed on the cable outlet. Users can see the pipeline of the oil-air lubrication device 4 inside the running-in table frame 1 through the acrylic crystal plate. This allows operators to see the status and switching of the instruments and valves inside the running-in table frame 1, which facilitates accurate evaluation of the overall operation of the device.

[0024] A running-in table system support 3 is provided on the side of the running-in table frame 1 away from the oil-air lubrication device 4. The running-in table system support 3 includes a support rod 31 rotatably connected to the side wall of the running-in table frame 1. The support rod 31 rotates in the horizontal plane and can rotate 180 degrees. A CNC panel 32 is fixed to one end of the support rod 31. The operator sets parameters and sends commands by clicking the switch buttons on the control panel. The control system controls the start, stop and operation status of the oil-air lubrication device 4 accordingly. At the same time, the operator can flexibly adjust the position of the CNC panel 32 according to the observation angle of the electric spindle, making the CNC panel 32 more convenient for the operator to use.

[0025] A top plate 11 is screwed to the top of the running-in table frame 1. An electric spindle fixing bracket 2 is provided on the upper side of the top plate 11. The electric spindle fixing bracket 2 is adjusted in position according to the size of the electric spindle and fixes the electric spindle in position on the top plate 11. The electric spindle fixing bracket 2 is adjusted in position according to the length of the electric spindle and fixed, so that this device can be used for electric spindles of different lengths. At the same time, by fixing the electric spindle, the position of the electric spindle can be prevented from shifting during the testing of the electric spindle, ensuring that there will be no jumping during the adjustment of the electric spindle parameters, thus improving the safety and accuracy of the electric spindle testing.

[0026] The electric spindle mounting bracket 2 includes two vertically arranged bottom support plates 21, which are parallel to each other. Track bars 25 are symmetrically fixed to the lower side of the bottom support plates 21 on the upper side of the top plate 11 with screws. The two track bars 25 are horizontally arranged, with both ends of the bottom support plates 21 respectively mounted on the two track bars 25. A groove is formed on the upper side wall of the track bar 25, and a slider corresponding to the groove is fixed to the lower side of the bottom support plates 21. The slider slides within the groove. During use, the distance between the two bottom support plates 21 is adjusted according to the length of the electric spindle, positioning them near the beginning and end of the spindle to facilitate support. After the two bottom support plates 21 are positioned, they are fixed to the track bars 25 with screws to ensure stable support of the electric spindle.

[0027] To improve the stability of the bottom support plate 21 in supporting the electric spindle, a V-shaped groove is provided in the middle of the upper side of the bottom support plate 21. The electric spindle is placed in the groove. Simultaneously, an n-shaped pressure rod 22 is screwed onto the upper side of the bottom support plate 21. The groove in the bottom support plate 21 and the pressure rod 22 form a space for placing the electric spindle. The electric spindle is positioned between the bottom support plate 21 and the pressure rod 22. Because the electric spindle rotates rapidly during testing, generating torque that is transmitted outwards, a pressure plate 23 is provided in the middle of the lower side of the pressure rod 22 to ensure the stability of the electric spindle during testing. A screw 24 is rotatably connected to the pressure plate 23, and the screw 24 is threaded through the pressure rod 22. A sliding rod is fixed to the upper side of plate 23 near both ends. The sliding rod slides through the pressure cover rod 22. When the screw 24 rotates, the sliding rod restricts the position of the pressure plate 23, preventing the pressure plate 23 from rotating with the screw 24. Then, the pressure plate 23 can move up and down by means of the threaded connection between the screw 24 and the pressure cover rod 22. At the same time, rubber pads are installed on the lower side of the pressure plate 23 and on both sides of the groove. The electric spindle is first placed on the rubber pad in the groove, and then the screw 24 is rotated, causing the pressure plate 23 to move the rubber pad down and squeeze the electric spindle, so that the electric spindle is clamped and fixed on the upper side of the running-in table frame 1. This ensures the stability of the electric spindle, prevents the electric spindle from moving during running-in, and improves the accuracy of electric spindle detection.

[0028] The oil-gas lubrication device 4 includes a gas system, an oil system, and a mixing system. The gas system supplies gas to the mixing system. The gas system includes a gas source for providing high-pressure gas and a water filter for filtering moisture from the gas source. The water filter removes moisture from the air, preventing water from mixing with oil later and coming into contact with the bearings and screw components. An air filter is connected to the water filter. The air filter removes impurities from the gas after it has been filtered by the water filter, preventing impurities from coming into contact with the bearings and screw components, thus reducing wear and extending their service life. A solenoid valve is connected to the air filter, and the gas supply is controlled by opening and closing the solenoid valve.

[0029] The oil system supplies oil to the mixing system. The oil system includes an oil quantity controller and an oil supply pump. The oil supply pump and the oil quantity controller are connected to a filter pipe. The filter pipe filters impurities from the oil and supplies the oil to the mixing system. The oil quantity controller controls the oil supply based on the oil supply pump. A pressure gauge is installed on the filter pipe to determine the oil pressure inside the pipe. The mixing system mixes the received oil and gas and supplies it to the electric spindle. The mixing system includes several mixing valves. The mixing valves receive the oil and gas supplied by the oil system and the gas system and turn the oil and gas into fine oil mist particles. Several oil and gas sensors are connected to the mixing valves. One end of the oil and gas sensor supplies the mixed oil and gas to the electric spindle through a hose.

[0030] During the running-in process of the electric spindle, the oil-air lubrication device 4 delivers fine particles of oil-air mixture to the bearings and screw components in the electric spindle, so that the bearings and screw components can be lubricated, ensuring the normal use of the bearings and screw components, avoiding dry friction and severe wear, and extending the service life of the bearings.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A comprehensive testing device for the running-in of an electric spindle, comprising a running-in table frame (1), characterized in that: The top of the running-in table frame (1) is fixed with a top plate (11) by screws. The interior of the running-in table frame (1) is a hollow structure, and a thick iron metal plate is installed on its side wall. An oil-air lubrication device (4) is installed on one side of the running-in table frame (1). The pipeline of the oil-air lubrication device (4) is set inside the running-in table frame (1). The oil-air lubrication device (4) is used to supply oil to the bearings and screws of the electric spindle. An electric spindle fixing bracket (2) is set on the upper side of the top plate (11). The electric spindle fixing bracket (2) is adjusted according to the size of the electric spindle and fixes the position of the electric spindle on the top plate (11). A running-in table system bracket (3) is set on the side of the running-in table frame (1) away from the oil-air lubrication device (4).

2. The electric spindle running-in comprehensive testing equipment according to claim 1, characterized in that: The electric spindle mounting bracket (2) includes two vertically arranged bottom support plates (21). The lower side of the bottom support plate (21) is located on the upper side of the top plate (11) and is symmetrically fixed with track bars (25) by screws. The two ends of the bottom support plate (21) are respectively set on the two track bars (25). The distance between the two bottom support plates (21) is adjusted according to the length of the electric spindle and fixed on the track bars (25) by screws.

3. The electric spindle running-in comprehensive testing equipment according to claim 2, characterized in that: A V-shaped groove is provided in the middle of the upper side of the bottom support plate (21). An n-shaped pressure rod (22) is fixed to the upper side of the bottom support plate (21) with screws. The groove of the bottom support plate (21) and the pressure rod (22) form a space for placing the electric spindle. The electric spindle is set between the bottom support plate (21) and the pressure rod (22).

4. The electric spindle running-in comprehensive testing equipment according to claim 3, characterized in that: A pressure plate (23) is provided at the middle position of the lower side of the pressure plate (22). A screw (24) is rotatably connected to the pressure plate (23). The screw (24) is threaded through the pressure plate (22). A sliding rod is fixed on the upper side of the pressure plate (23) near both ends. The sliding rod slides through the pressure plate (22).

5. The electric spindle running-in comprehensive testing equipment according to claim 1, characterized in that: The running-in table system support (3) includes a support rod (31) rotatably connected to the side wall of the running-in table frame (1). The support rod (31) rotates in the horizontal plane, and a CNC panel (32) is fixed to one end of the support rod (31).

6. The electric spindle running-in comprehensive testing equipment according to claim 1, characterized in that: The running-in table frame (1) has a cable outlet on one side, and a transparent acrylic crystal plate is installed on the cable outlet.

7. The electric spindle running-in comprehensive testing equipment according to claim 1, characterized in that: The oil-gas lubrication device (4) includes a gas system, an oil system and a mixing system. The gas system supplies gas to the mixing system, the oil system supplies oil to the mixing system, and the mixing system mixes the received oil and gas and supplies it to the electric spindle.

8. The electric spindle running-in comprehensive testing equipment according to claim 7, characterized in that: The gas system includes a gas source for providing high-pressure gas and a water filter for filtering moisture from the gas source. An air filter is connected to the water filter, and the air filter is used to filter impurities and particles from the gas filtered by the water filter. A solenoid valve is connected to the air filter.

9. The electric spindle running-in comprehensive testing equipment according to claim 8, characterized in that: The oil system includes an oil quantity controller and an oil supply pump. The delivery ends of the oil supply pump and the oil quantity controller are connected to a filter pipe. The filter pipe filters impurities from the oil and delivers the oil through the filter pipe to the mixing system. The oil quantity controller controls the oil supply according to the status of the oil supply pump.

10. The electric spindle running-in comprehensive testing equipment according to claim 9, characterized in that: The mixing system includes several mixing valves, which are used to receive oil and gas provided by the oil system and the gas system, and turn the oil and gas into fine particles. Several oil and gas sensors are connected to the mixing valves, and one end of the oil and gas sensors delivers the mixed oil and gas to the electric spindle through a hose.

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