Bearing oil height measuring device and bearing oil height measuring method

Abstract

The present invention discloses a bearing oil height measuring device, comprising a feeding device, a picking device and a detection device arranged on a frame, wherein the feeding device transmits a material tray to the picking device at a preset interval, and the detection device comprises a laser measuring mechanism and a detection fixture slidably arranged on the frame, and the picking device is actuated to place the bearing in the detection fixture, and the detection fixture drives the bearing to slide close to the laser measuring mechanism, and the laser measuring mechanism emits a surface laser to measure the oil height of the bearing in the detection fixture. The present invention also provides an oil height measuring method, and the oil height measuring device and the oil height measuring method of the present invention are adopted, which are more efficient and more accurate in measurement.

Description

Technical Field

[0001] The invention relates to the technical field of bearing oil height measurement, and in particular to a bearing oil height measurement device and a bearing oil height measurement method. Background Art

[0002] The fan bearing of a laptop has a great influence on the fan's speed, balance, and abnormal noise, and the oil height of the fan bearing has a great influence on the bearing performance. Therefore, the accuracy of the bearing oil height measurement is particularly important. The external environment has a certain impact on the measurement results of the bearing oil height, and the existing measurement equipment generally uses point laser measurement, which has certain limitations, resulting in a certain deviation in the measurement results of the bearing oil height.

[0003] Therefore, there is an urgent need for a bearing oil height measurement device that can improve the bearing oil height measurement accuracy. Summary of the invention

[0004] The object of the present invention is to provide a bearing oil height measuring device capable of improving the bearing oil height measurement accuracy.

[0005] Another object of the present invention is to provide a bearing oil height measurement method capable of accurately measuring the bearing oil height.

[0006] To achieve the above-mentioned purpose, the present invention provides a bearing oil height measuring device, comprising a feeding device, a picking device and a detection device arranged on a frame, the feeding device transmits the material tray to the picking device at preset intervals, the detection device comprises a laser measuring mechanism and a detection fixture slidably arranged on the frame, the picking device is actuated to place the bearing in the detection fixture, the detection fixture drives the bearing to slide close to the laser measuring mechanism, and the laser measuring mechanism emits a surface laser to measure the oil height of the bearing in the detection fixture.

[0007] Compared with the prior art, the bearing oil height measuring device of the present invention includes a feeding device that can automatically feed materials. The feeding device transfers the material tray at preset intervals, which facilitates the transfer of the material tray and improves the transfer efficiency of the material tray. The picking device automatically picks up the bearing to the detection fixture, and then moves the detection fixture to transfer the bearing to the laser measuring mechanism for measurement. The bearing is placed in the detection fixture, which provides a better measurement environment for the bearing measurement and makes the measurement results more accurate. The laser measuring mechanism uses a surface laser to measure the bearing, so that the measurement results are more accurate. The bearing oil height measuring device of the present invention has a high degree of automation, greatly improves the measurement efficiency, and the measurement results are more accurate.

[0008] Preferably, the feeding device is provided with a lifting feeding mechanism for conveying material trays and a discharge area for storing material trays. The lifting feeding mechanism is slidably arranged at the bottom of the discharge area. The lifting feeding mechanism is actuated to convey the material tray located at the bottom of the discharge area to the material picking device.

[0009] Preferably, the material picking device includes a material picking mechanism slidably arranged on the frame and a preloading mechanism docked with the feeding device, the preloading mechanism is provided with a positioning component for pre-positioning, and the material picking mechanism picks up the bearing on the preloading mechanism and places it in the positioning component to pre-position the bearing.

[0010] Preferably, the feeding device also includes an NG discharge mechanism slidably arranged on the frame, and the picking mechanism includes a detection part arranged on the mounting plate for scanning detection and a plurality of picking components for picking materials, and the detection part is used to determine that the bearing picked up by the picking component is placed in the positioning component or the NG discharge mechanism.

[0011] Preferably, the positioning assembly includes a first power member, a first positioning member and a second positioning member that slides and cooperates with the first positioning member. The material picking mechanism picks up the bearing and places it in the first positioning member. The first power member is actuated to make the second positioning member slide close to the first positioning member to pre-position the bearing.

[0012] Preferably, it also includes a vacuum device connected to the detection fixture, the detection fixture includes a base slidably arranged on the frame, a plurality of accommodating spaces are arranged on the base, each accommodating space is provided with an upper cover, each upper cover is slidably matched with the accommodating space, each accommodating space is connected to the vacuum device, the upper cover cooperates with the base to seal the corresponding accommodating space, and the vacuum device is started to make the accommodating space a vacuum state.

[0013] Preferably, each accommodating space is provided with a sealing component matched with the upper cover, so that after the upper cover is covered on the base by the sealing component, the accommodating space is in a sealed state.

[0014] Preferably, the laser measuring mechanism comprises a support seat for fixing and a laser measuring structure slidably disposed on the support seat, and the laser measuring structure is used to simultaneously test multiple oil high points of the bearing.

[0015] Preferably, a first workbench and a second workbench are provided on the frame, a feeding device and a material taking device are installed on the first workbench, and a detection device is installed on the second workbench, and the first workbench and the second workbench are installed separately on the frame to reduce the influence of the activities of the feeding device and the material taking device on the detection device.

[0016] To achieve the above another object, the present invention provides a method for measuring bearing oil height, comprising the following steps:

[0017] The bearing is transported to the inspection jig by using the material taking mechanism;

[0018] Use a vacuum device to evacuate the inspection fixture;

[0019] Use the inspection jig to transfer the bearing to the laser measuring mechanism;

[0020] The laser measuring module of the laser measuring mechanism emits a surface laser to measure the bearing; the surface laser is divided into multiple large measuring areas, each large measuring area is further divided into multiple small measuring areas, and the oil height of each small measuring area is obtained;

[0021] The calculation module of the laser measurement mechanism is used to calculate the first oil height average value of multiple small measurement areas within the same large measurement area; the calculation module then uses all the first oil height average values ​​to calculate the second oil height average value of multiple large measurement areas, and the second oil height average value is the oil height measurement value of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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. Obviously, the accompanying drawings described below are 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 any creative work.

[0023] Figure 1 It is a structural schematic diagram of a bearing oil height measuring device provided in one embodiment of the present invention.

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the bearing oil height measurement equipment from another angle.

[0025] Figure 3 It is a structural schematic diagram of the bearing of the present invention.

[0026] Figure 4 yes Figure 3 Cross-sectional view of the middle bearing.

[0027] Figure 5 yes Figure 1 Schematic diagram of the structure of the feeding device and pre-installation mechanism on the frame.

[0028] Figure 6 yes Figure 5 Schematic diagram of the structure of the positioning component.

[0029] Figure 7 yes Figure 5 Schematic diagram of the structure of the feeding device and the pre-installation mechanism.

[0030] Figure 8 yes Figure 1 Schematic diagram of the structure of the medium NG discharge mechanism.

[0031] Fig. 9 yes Figure 1 Schematic diagram of the structure of the feeding mechanism.

[0032] Fig.10 yes Fig. 9 Schematic diagram of the structure of the middle material taking component.

[0033] Fig.11 yes Figure 1 Schematic diagram of the structure of the detection fixture.

[0034] Fig.12 yes Fig.11 Schematic diagram of the structure of a single detection fixture.

[0035] Fig.13 yes Figure 1 Schematic diagram of the structure of the detection fixture and laser measurement mechanism.

[0036] Fig.14 yes Fig.13 Schematic diagram of the structure of the laser measurement mechanism.

[0037] Description of reference numerals:

[0038] 100. Bearing oil height measuring device; 101. Machine frame; 102. First workbench; 103. Second workbench; 104. Bearing; 1041. Oil tank; 1042. Reference surface; 105. Feeding device; 106. Retrieving device; 107. Detection device;

[0039] 10. Material discharge area; 11. Area to be tested; 12. Tested area;

[0040] 20. Lifting and feeding mechanism;

[0041] 30. NG material discharge mechanism; 31. First moving module; 32. NG material tray;

[0042] 40. Pre-installation mechanism; 41. Positioning assembly; 411. First positioning member; 4111. First positioning portion; 412. Second positioning member; 4121. Second positioning portion; 413. First guide rail assembly; 414. First power member;

[0043] 50. Material taking mechanism; 51. Lateral moving module; 52. Forward and backward moving module; 53. Material taking structure; 531. Mounting plate; 532. Detection component; 533. Material taking assembly; 5331. First cylinder; 5332. First sliding assembly; 5333. Material taking assembly; 5334. Air suction connection piece;

[0044] 60. Inspection fixture; 601. Second moving module; 61. Base; 611. Accommodating space; 612. Vacuum joint; 613. Second sliding assembly; 614. Second power member; 62. Upper cover; 621. Cover body; 622. Glass; 623. Third sliding assembly; 624. Third power member; 63. Sealing assembly; 631. First sealing member; 632. Second sealing member;

[0045] 70. Laser measuring mechanism; 71. Support seat; 72. Laser measuring structure;

[0046] 80. Vacuum extraction device. DETAILED DESCRIPTION

[0047] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0048] See also Figure 1 and Figure 2 The present invention provides a bearing oil level measuring device 100, comprising a feeding device 105, a picking device 106 and a detection device 107 arranged on a frame 101. The feeding device 105 transmits a material tray to the picking device 106 at a preset interval. Specifically, the detection device 107 comprises a laser measuring mechanism 70 and a detection fixture 60 slidably arranged on the frame 101. The picking device 106 moves to pick up a bearing 104 and place it in the detection fixture 60. The detection fixture 60 drives the bearing 104 to slide close to the laser measuring mechanism 70. The laser measuring mechanism 70 emits a surface laser to measure the oil level of the bearing 104 in the detection fixture 60.

[0049] After adopting the above technical scheme, the bearing oil height measuring device 100 of the present invention includes a feeding device 105 that can automatically feed materials. The feeding device 105 transfers the material tray at a preset interval, which facilitates the transfer of the material tray and improves the transfer efficiency of the material tray. The material picking device 106 automatically picks up the bearing 104 to the detection fixture 60, and then moves the detection fixture 60 to transfer the bearing 104 to the laser measurement mechanism 70 for measurement. The bearing 104 is placed in the detection fixture 60, which provides a better measurement environment for the measurement of the bearing 104, making the measurement result more accurate. The laser measurement mechanism 70 uses a surface laser to measure the bearing 104, so that the measurement result is more accurate. The bearing oil height measuring device 100 of the present invention has a high degree of automation, greatly improves the measurement efficiency, and the measurement result is more accurate.

[0050] See also Figure 3 and Figure 4 The bearing 104 is a fan bearing 104 of a laptop computer. An oil groove 1041 for adding lubricating oil or grease is provided in the middle of the bearing 104. The surface laser of the laser measuring mechanism 70 measures the height of the lubricating oil in the oil groove 1041 with reference to a reference surface 1042 of the bearing 104.

[0051] See also Figure 5 , Figure 7In some optional embodiments, the feeding device 105 is provided with a lifting feeding mechanism 20 for conveying material trays and a material discharge area 10 for storing material trays. The material discharge area 10 includes a measured area 12 for placing measured products and a to-be-measured area 11 for placing unmeasured products. Material trays can be stacked in both the measured area 12 and the to-be-measured area 11. Specifically, the lifting feeding mechanism 20 is slidably arranged at the bottom of the material discharge area 10, and a lifting mechanism for lifting the material tray is arranged on the to-be-measured area 11. When the lifting mechanism reaches the bottom of the material tray, the lifting mechanism lifts the other material trays except the bottom layer. The lifting feeding mechanism 20 operates to convey the material tray located at the bottom layer of the to-be-measured area 11 to the material taking device 106.

[0052] See also Figure 1 , Figure 2 , Fig. 9 and Fig.10 In some optional embodiments, the material picking device 106 includes a material picking mechanism 50 slidably arranged on the frame 101 and a preloading mechanism 40 docked with the feeding device 105. The material picking mechanism 50 can move horizontally forward and backward and left and right. The material picking mechanism 50 includes a material picking structure 53 installed on the lateral moving module 51, and the lateral moving module 51 and the material picking structure 53 are installed on the front and back moving module 52. The material picking structure 53 moves laterally on the frame 101 through the lateral moving module 51, and the material picking structure 53 moves forward and backward on the frame 101 through the front and back moving module 52. Specifically, a positioning component 41 for pre-positioning is provided on the preloading mechanism 40, and the material picking mechanism 50 picks up the bearing 104 on the preloading mechanism 40 and places it in the positioning component 41 to pre-position the bearing 104.

[0053] See also Figure 1 , Figure 2 and Figure 8In some optional embodiments, the feeding device 105 further includes an NG material discharge mechanism 30 slidably disposed on the frame 101, the NG material discharge mechanism 30 includes a first moving module 31 and an NG material tray 32 slidably disposed on the first moving module 31, and the NG material tray 32 can move on the first moving module 31 to approach or move away from the material taking mechanism 50. On the other hand, the material taking structure 53 includes a detection member 532 for scanning and detection disposed on the mounting plate 531 and a plurality of material taking components 533 for taking materials. Before the material taking components 533 take materials, the detection member 532 first scans and detects the bearings 104 in the corresponding area on the pre-installation mechanism 40. Each bearing 104 is provided with a corresponding QR code. After scanning and detecting, the detection member 532 can determine whether each bearing 104 is a good product and upload the information to the industrial computer. After the detection member 532 scans and detects, it can be determined that the bearing 104 picked up by the picking assembly 533 is placed in the positioning assembly 41 or the NG discharge mechanism 30, and the good product is placed in the positioning assembly 41 for pre-positioning, and the bad product is returned through the NG discharge mechanism 30. Specifically, each group of picking assemblies 533 includes a first cylinder 5331, a first sliding assembly 5332 and a picking member 5333, and each picking assembly 533 can be moved alone to place the picked bearing 104 separately in the positioning assembly 41 or the NG discharge mechanism 30. The picking member 5333 is slidably mounted on the mounting plate 531 through the first sliding assembly 5332, and the first cylinder 5331 is actuated to slide the picking member 5333 along the first sliding assembly 5332. The material picking member 5333 is connected to a suction connection member 5334, and the suction connection member 5334 can be connected to a suction mechanism, and the suction mechanism can be a vacuum device 80, and the corresponding bearing 104 can be sucked and picked up by starting the vacuum device 80. The material picking member 5333 can also be a clamping member, etc. In this embodiment, the number of the material picking components 533 is five, and correspondingly, the accommodating space 611 of the detection fixture 60 includes five independent cavities for the material picking components 533 to discharge materials.

[0054] See also Figure 6In some optional embodiments, the positioning assembly 41 is located on one side of the pre-installation mechanism 40, and the positioning assembly 41 includes a first power member 414, a first positioning member 411, and a second positioning member 412 that slides and cooperates with the first positioning member 411. The picking assembly 533 on the picking mechanism 50 picks up the qualified bearing 104 and places it in the first positioning member 411. Under the action of the first power member 414, the second positioning member 412 slides along the first guide rail assembly 413 to approach the first positioning member 411. A semicircular first positioning portion 4111 is provided on the first positioning member 411, and a semicircular second positioning portion 4121 is provided on the second positioning member 412. Both the first positioning portion 4111 and the second positioning portion 4121 match the bearing 104. Under the action of the first power member 414, the first positioning portion 4111 and the second positioning portion 4121 can be separated from each other to better place the bearing 104. Under the action of the first power member 414 , the first positioning portion 4111 and the second positioning portion 4121 can approach each other to pre-position the bearing 104 .

[0055] See also Figure 1 , Figure 2 , Fig.11 and Fig.12In some optional embodiments, the bearing oil height measuring device 100 of the present invention further includes a vacuum device 80 connected to the detection fixture 60, and the vacuum device 80 is connected to the detection fixture 60. The detection fixture 60 includes a second mobile module 601 arranged on the frame 101, and the detection fixture 60 also includes a base 61 slidably arranged on the second mobile module 601, and a receiving space 611 for placing the bearing 104 is arranged on the base 61. In this embodiment, a plurality of independent receiving spaces 611 are arranged on the base 61, and each receiving space 611 is correspondingly provided with an upper cover 62, and each upper cover 62 is slidably matched with the corresponding receiving space 611, and each receiving space 611 is provided with a vacuum joint 612 connected to the vacuum device 80, and the vacuum joint 612 can be a knob-type stainless steel vacuum joint 612. The upper cover 62 cooperates with the base 61 to seal the corresponding accommodation space 611, wherein a sealing assembly 63 cooperating with the upper cover 62 is provided on the accommodation space 611, and after the upper cover 62 is covered on the base 61 by the sealing assembly 63, the accommodation space 611 is in a sealed state. The vacuum device 80 is started to vacuumize the accommodation space 611 in a sealed state, so that the accommodation space 611 is in a vacuum state. Specifically, the base 61 is installed on the second moving module 601 through the second sliding assembly 613, and the base 61 is also connected to the second power member 614, and the second power member 614 is operated to move the base 61 on the second moving module 601 in a horizontal direction, that is, to move in a direction parallel to the frame 101. The sealing assembly 63 includes a first sealing member 631 and a second sealing member 632, and a first mounting groove for mounting the first sealing member 631 and a second mounting groove for mounting the second sealing member 632 are provided on the base 61. The upper cover 62 includes a glass 622 and a cover body 621 for fixing the glass 622. The first sealing member 631 is located between the cover body 621 and the base 61, and the second sealing member 632 is located between the glass 622 and the base 61. The first sealing member 631 and the second sealing member 632 are provided to make the overall sealing effect better. On the other hand, a third sliding assembly 623 and a third power member 624 are also provided on the cover body 621. The cover body 621 is installed on the second moving module 601 through the third sliding assembly 623. The third power member 624 moves to make the cover body 621 move up and down along the third sliding assembly 623 to cooperate with the base 61 for sealing. Among them, the glass 622 is an optical glass 622 with a low refractive index and a low reflectivity. When detecting laser penetration, the optical glass 622 with a low refractive index and a low reflectivity can more accurately detect the workpiece in the accommodating space 611. For example, when the laser penetrates the glass 622 , the focus of the laser becomes shorter by about 2 mm. Therefore, the thickness of the glass 622 may be set to about 3 mm so that the laser can better detect the workpiece.

[0056] See also Figure 1 , Figure 2 , Fig.13 and Fig.14 In some optional embodiments, the laser measurement mechanism 70 includes a support seat 71 for fixing and a laser measurement structure 72 slidably disposed on the support seat 71, and the laser measurement structure 72 is used to simultaneously test multiple oil high points of the bearing 104. The support seat 71 is a marble structure, which is more stable. The laser measurement structure 72 can emit a surface laser to simultaneously test multiple oil high points of the bearing 104, and the measurement is more accurate.

[0057] See also Figure 1 , Figure 2 and Figure 5 In some optional embodiments, a first workbench 102 and a second workbench 103 are provided on the frame 101, and both the first workbench 102 and the second workbench 103 are made of marble, so that the overall structure is more stable. Specifically, the feeding device 105 and the material taking device 106 are installed on the first workbench 102, and the detection device 107 is installed on the second workbench 103. The first workbench 102 and the second workbench 103 are installed separately on the frame 101. Since the feeding device 105 and the material taking device 106 have certain vibrations during the movement, they will have a certain impact on the measurement results of the laser measurement structure 72. Installing the laser measurement mechanism 70 and other mechanisms on different workbench can reduce the impact of the activities of the feeding device 105 and the material taking device 106 on the detection device 107.

[0058] Combination Figures 1 to 14 The working principle of the bearing oil height measuring device 100 of the present invention is described as follows:

[0059] The material tray with the bearing 104 is conveyed to the pre-installation mechanism 40 by means of the feeding device 105 .

[0060] The bearing 104 on the pre-installation mechanism 40 is inspected by the inspection member 532 on the picking mechanism 50 . After the inspection, the OK parts are placed into the positioning assembly 41 through the picking assembly 533 , and the NG parts are placed into the NG discharge mechanism 30 through the picking assembly 533 .

[0061] The bearing 104 pre-positioned in the positioning assembly 41 is transported to the detection fixture 60 by means of the picking mechanism 50 .

[0062] The inspection jig 60 is evacuated by using the vacuum device 80 .

[0063] The bearing 104 is transferred to the laser measuring mechanism 70 using the detection jig 60 .

[0064] The laser measuring module of the laser measuring mechanism 70 emits a surface laser to measure the bearing 104; and divides the surface laser into a plurality of large measuring areas, and each large measuring area is further divided into a plurality of small measuring areas to obtain the oil height of each small measuring area.

[0065] The calculation module of the laser measurement mechanism 70 is used to calculate the first oil height average value of multiple small measurement areas within the same large measurement area; the calculation module then uses all the first oil height average values ​​to calculate the second oil height average value of multiple large measurement areas, and the second oil height average value is the oil height measurement value of the bearing 104.

[0066] For example, the surface laser can be divided into thirty-six large measurement areas on the bearing, and each large measurement area can be divided into thirty-six small measurement areas, and then the calculation is performed, and the measurement result is more accurate. Of course, it can also be divided into other numbers of large measurement areas and small measurement areas.

[0067] The measured bearing 104 returns to the original path in the detection fixture 60 , and the measured bearing 104 is placed in the measured area 12 on the discharge area 10 by the material taking mechanism 50 .

[0068] like Figures 1 to 14As shown, the bearing oil height measuring device 100 of the present invention uses dust-free grade parts for the whole machine, is provided with a dustproof cover, and is externally connected to a dust suction device to ensure that the working environment of the whole machine is a dust-free use environment, thereby minimizing the influence of the use environment on the measurement results. The bearing oil height measuring device 100 of the present invention includes a feeding device 105 that can automatically feed materials, and the feeding device 105 includes a lifting feeding mechanism 20 for automatically transmitting the material tray, which improves the transmission efficiency of the material tray. The discharge area 10 is provided with a to-be-tested area 11 for placing the bearing 104 to be tested and a measured area 12 for placing the measured bearing 104, which makes full use of the overall space of the machine. The pre-installation mechanism 40 is docked with the feeding device 105, and the material picking mechanism 50 automatically scans and detects at the pre-installation mechanism 40 and picks up the bearing 104 and places it in the positioning component 41 for pre-positioning. Then, the bearing 104 is picked up from the positioning assembly 41 to the detection fixture 60, and then the detection fixture 60 is moved to transfer the bearing 104 to the laser measurement mechanism 70 for measurement. The bearing 104 is placed in the detection fixture 60 and vacuumed, which provides a better measurement environment for the measurement of the bearing 104, making the measurement result more accurate. The laser measurement mechanism 70 uses a surface laser to measure the bearing 104, making the measurement result more accurate. For the bearing 104 that has been tested, it returns to the original path through the detection fixture 60, and the material picking device 106 can automatically pick up the bearing 104 from the detection fixture 60 and place it in the measured area 12. The bearing oil height measurement device 100 of the present invention adopts double-track feeding, that is, there are two pre-installation mechanisms 40 and two detection fixtures 60. The two sides work alternately, one side returns the material, and the other side feeds the material, without interfering with each other, which greatly improves the work efficiency. And the double tracks share a material picking mechanism 50, saving costs. And the bearing oil height measurement device 100 of the present invention has a high degree of automation and more accurate measurement results.

[0069] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A bearing oil height measuring device, characterized in that: It includes a feeding device, a picking device and a detection device which are arranged on a frame, the feeding device transmits a material tray to the picking device at a preset interval, the detection device includes a laser measuring mechanism and a detection fixture which is slidably arranged on the frame, the picking device is actuated to place a bearing in the detection fixture, the detection fixture drives the bearing to slide close to the laser measuring mechanism, the laser measuring mechanism emits a surface laser to measure the oil height of the bearing in the detection fixture; it also includes a vacuum device connected to the detection fixture, the detection fixture includes a base which is slidably arranged on the frame, a plurality of accommodating spaces are arranged on the base, each of the accommodating spaces is provided with an upper cover, each of the upper covers is slidably matched with the accommodating space, each of the accommodating spaces is connected to the vacuum device, the upper cover cooperates with the base to seal the corresponding accommodating space, and the vacuum device is started to make the accommodating space a vacuum state.

2. The bearing oil level measuring device according to claim 1, characterized in that: The feeding device is provided with a lifting feeding mechanism for conveying material trays and a discharge area for storing material trays. The lifting feeding mechanism is slidably arranged at the bottom of the discharge area. The lifting feeding mechanism is actuated to convey the material tray located at the bottom layer of the discharge area to the material taking device.

3. The bearing oil level measuring device according to claim 1, characterized in that: The picking device includes a picking mechanism slidably arranged on a frame and a pre-loading mechanism docked with the feeding device. The pre-loading mechanism is provided with a positioning component for pre-positioning. The picking mechanism picks up the bearing on the pre-loading mechanism and places it in the positioning component to pre-position the bearing.

4. The bearing oil level measuring device according to claim 3, characterized in that: The feeding device also includes an NG discharge mechanism slidably arranged on the frame, and the picking mechanism includes a detection part arranged on the mounting plate for scanning detection and a plurality of picking components for picking materials, and the detection part is used to determine whether the bearing picked up by the picking component is placed in the positioning component or the NG discharge mechanism.

5. The bearing oil level measuring device according to claim 3, characterized in that: The positioning assembly includes a first power member, a first positioning member and a second positioning member that slides and cooperates with the first positioning member. The material picking mechanism picks up the bearing and places it in the first positioning member. The first power member is actuated to make the second positioning member slide close to the first positioning member to pre-position the bearing.

6. The bearing oil level measuring device according to claim 1, characterized in that: Each of the accommodating spaces is provided with a sealing component that cooperates with the upper cover. After the upper cover is covered on the base by the sealing component, the accommodating space is in a sealed state.

7. The bearing oil level measuring device according to claim 1, characterized in that: The laser measuring mechanism comprises a support seat for fixing and a laser measuring structure slidably arranged on the support seat, and the laser measuring structure is used to simultaneously test multiple oil high points of the bearing.

8. The bearing oil level measuring device according to claim 1, characterized in that: The frame is provided with a first workbench and a second workbench for installing the feeding device, the material taking device and the detection device. The feeding device and the material taking device are installed on the first workbench, and the detection device is installed on the second workbench. The first workbench and the second workbench are installed separately on the frame to reduce the influence of the activities of the feeding device and the material taking device on the detection device.

9. A method for measuring bearing oil level, applicable to the bearing oil level measuring device according to any one of claims 1 to 8, characterized in that: The steps include: The bearing is transported to the inspection jig by using the material taking mechanism; Using a vacuum pump to evacuate the detection jig; Using the detection jig to transfer the bearing to the laser measuring mechanism; The laser measuring module of the laser measuring mechanism emits a surface laser to measure the bearing; the surface laser is divided into a plurality of large measuring areas, each of the large measuring areas is further divided into a plurality of small measuring areas, and the oil height of each of the small measuring areas is obtained; The calculation module of the laser measurement mechanism is used to calculate the first oil height average value of multiple small measurement areas within the same large measurement area; the calculation module then uses all the first oil height average values ​​to calculate the second oil height average value of multiple large measurement areas, and the second oil height average value is the oil height measurement value of the bearing.

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