Air conditioner bearing assembly detection line

Abstract

This application relates to the field of bearing manufacturing technology, and in particular to an air conditioning bearing assembly and inspection line, comprising two sets of inspection and rejection mechanisms arranged linearly along the X-axis, and a cover plate assembly mechanism located between the two sets of inspection and rejection mechanisms. The cover plate assembly mechanism includes an assembly housing and a cover plate vibratory feeder. The top of the assembly housing is equipped with a cover plate conveying track arranged along the Y-axis, a pull-out type cover plate device arranged along the X-axis, a three-axis displacement platform, a bearing housing transport device, and a cover plate arrival detection device. An adsorption-type cover plate picking head is installed on the three-axis displacement platform. The inspection and rejection mechanism includes an inspection housing, a material turntable, multiple imaging devices, and an air-blowing rejection device. This air conditioning bearing assembly and inspection line offers higher production efficiency, significantly reduces human error, and achieves higher assembly and inspection accuracy, thus improving the final product qualification rate of the air conditioning bearings.

Description

Technical Field

[0001] This application relates to the field of bearing manufacturing technology, and in particular to an air conditioning bearing assembly and testing line. Background Technology

[0002] Indoor fan components are widely used in air conditioners from various home appliance brands and automotive air conditioners. The inner fan bearing is the most critical component of the inner fan component. Based on the huge user base of home appliance air conditioners and automotive air conditioners, the production and usage demand for air conditioner inner fan bearings is becoming increasingly strong.

[0003] For example, Chinese patent application number CN202422131948.2 discloses a high-load-bearing silent resin bearing, including a bearing body, a circular bearing hole at the center of the bearing body, an opening at the top of an oil storage blind hole, a circular groove above the opening and on the upper part of the bearing body, the diameter of the circular groove being larger than the diameter of the bearing hole, a cover plate being provided in the circular groove, the periphery of the cover plate being tightly fitted with the inner edge of the circular groove, the cover plate including a cover plate hole in the middle of the cover plate, the diameter of the cover plate hole being equal to the diameter of the bearing hole.

[0004] Regarding the aforementioned related technologies, the inventors believe that the following defects exist:

[0005] Common air conditioner internal fan bearings are still produced using traditional manual methods, which generally include the following core production steps: internal hole inspection before assembly, stamping and installing cover plates, and internal hole inspection after assembly. These steps mostly rely on manual operation by multiple workers and material turnover, which not only results in low production efficiency but also suffers from insufficient assembly and inspection accuracy due to human factors, leading to a low finished product qualification rate for air conditioner internal fan bearings. Summary of the Invention

[0006] This application provides an air conditioner bearing assembly and testing line to improve the following technical problems:

[0007] The production of common air conditioner internal fan bearings still relies on traditional manual methods. The core steps mostly depend on the manual operation of multiple workers and the turnover of materials. This not only results in low production efficiency, but also suffers from insufficient assembly and testing accuracy due to human factors, leading to a low finished product qualification rate for air conditioner internal fan bearings.

[0008] This application provides an air conditioner bearing assembly and testing line, which adopts the following technical solution:

[0009] An air conditioner bearing assembly and inspection line includes two sets of inspection and rejection mechanisms and a cover plate assembly mechanism arranged in a straight line along the X-axis. The cover plate assembly mechanism is located between the two sets of inspection and rejection mechanisms. The upper and lower end faces of the bearing body have annular grooves and the central shaft has an inner hole. The cover plate assembly mechanism is used to install annular cover plates into the annular grooves on the upper surface of the bearing body.

[0010] The cover plate assembly mechanism includes an assembly housing and a cover plate vibrating plate. The top of the assembly housing is equipped with a cover plate conveying track arranged along the Y-axis, a pull-out type paddle device arranged along the X-axis, a three-axis displacement platform, a bearing body transport device, and a cover plate arrival detection device. The bottom of the cover plate conveying track has a servo motor-driven conveyor belt. The entrance of the cover plate conveying track is connected to the output end of the cover plate vibrating plate. The pull-out type paddle device is located at the exit of the cover plate conveying track and is used to paddle out the annular cover plates one by one. The three-axis displacement platform is equipped with an adsorption type paddle-taking head. The adsorption type paddle-taking head is used to take away the annular cover plates from the pull-out type paddle device. The three-axis displacement platform is used to accurately transport the annular cover plates on the adsorption type paddle-taking head to the bearing body in the bearing body transport device and press them into place.

[0011] The detection and rejection mechanism includes a detection chassis, a material turntable, multiple sets of imaging devices, and an air-blowing rejection device. The material turntable is installed on the top of the detection chassis and is used to intermittently drive the product to be inspected to rotate. The multiple sets of imaging devices and the air-blowing rejection device are arranged sequentially and at intervals along the periphery of the material turntable.

[0012] In one feasible technical solution of this application, there are two cover sheet vibrating disks, and each cover sheet vibrating disk is provided with two parallel cover sheet conveying tracks. Each cover sheet vibrating disk is provided with a set of pull-out sheet-picking devices, a three-axis displacement platform, and an adsorption-type sheet-picking head.

[0013] In one feasible technical solution of this application, the adsorption-type tablet pressing head includes a vertically arranged hollow tube. The bottom of the hollow tube is connected to a truncated cone for stamping an annular cover. The outer diameter of the truncated cone gradually decreases from top to bottom. The top of the hollow tube is used to connect to an external vacuum negative pressure system. The lower end face of the hollow tube has multiple adsorption holes, which are evenly spaced around the periphery of the truncated cone. The truncated cone is used to insert into the central hole of the annular cover.

[0014] In one feasible technical solution of this application, the pull-out paddle device includes a pull-out cylinder, a fixed base, and a sliding base. The pull-out cylinder and the fixed base are both installed on the top of the assembly box. The sliding base is slidably connected to the fixed base and is connected to the telescopic shaft of the pull-out cylinder. The sliding base is provided with a plurality of U-shaped grooves for the annular cover to be inserted. The opening of the U-shaped groove corresponds to the outlet of the cover conveying track. The pull-out cylinder is arranged along the X-axis and is used to drive the sliding base to slide back and forth.

[0015] In one feasible technical solution of this application, the bearing body transportation device includes a transportation trough, a trough cover plate, an X-axis linear sliding module, a Y-axis drive cylinder, a sliding table, and several fixed molds. The transportation trough, trough cover plate, and X-axis linear sliding module are all installed on the top of the assembly box and are all arranged along the X-axis direction. The bottom of the transportation trough has a servo motor-driven conveyor belt. Multiple bearing bodies are arranged in a straight line in the transportation trough and are pushed back and forth one by one for transportation. The trough cover plate covers the transportation trough to prevent the bearing bodies from slipping off. The trough cover plate has several stamped holes to allow some bearing bodies to be exposed on their upper surfaces. The sliding table is fixed on the moving block of the X-axis linear sliding module. The fixed molds are slidably assembled on the sliding table along the Y-axis direction, and the Y-axis drive cylinder is installed on the sliding table to drive the end of the fixed mold to insert into or slide out of the transportation trough. The end of the fixed mold away from the Y-axis drive cylinder has several fixed U-grooves that adapt to the outer contour of the bearing body.

[0016] In one feasible technical solution of this application, the cover plate positioning detection device includes a vertical beam, a first CCD camera and a first ring light. The bottom of the vertical beam is fixed to the assembly chassis. The first CCD camera and the first ring light are both mounted on the vertical beam. The first ring light is located directly below the first CCD camera, and the first CCD camera is located directly above the transport trough.

[0017] In one feasible technical solution of this application, the material turntable includes a low-speed servo motor, a chassis, multiple L-shaped brackets, and an annular tray. The low-speed servo motor is vertically installed inside the inspection chassis. The chassis is vertically connected to the top of the output shaft of the low-speed servo motor. The annular tray is located directly above the chassis, and both are arranged horizontally. The two ends of the L-shaped brackets are respectively connected to the inner periphery of the annular tray and the outer periphery of the chassis. The multiple L-shaped brackets are evenly spaced along the periphery of the chassis. The products to be inspected are arranged sequentially along the periphery of the upper surface of the annular tray.

[0018] In one feasible technical solution of this application, the shooting device includes a column and a second CCD camera. The second CCD camera is fixed to the column by screws. The height of the second CCD camera is adjustable. The column is vertically installed on the top of the detection housing.

[0019] In one feasible technical solution of this application, the shooting device has three sets of three second CCD cameras, which are respectively used to detect whether the inner diameter of the inner hole is qualified, to detect whether there are defects in the inner hole peripheral wall, and to detect whether there are burrs in the inner hole peripheral wall. A second ring light is provided below the second CCD camera used to detect burrs, and the second ring light is installed on the corresponding column.

[0020] In one feasible technical solution of this application, the air-blowing rejection device includes a waste bin, an L-shaped plate, an air-blowing gun, and an electrically controlled air valve. The waste bin is located on the top surface of the inspection box. The outer end of the L-shaped plate is fixed to the waste bin. The air-blowing gun is fixed in the inner circular hole of the L-shaped plate. The electrically controlled air valve is installed on the upper surface of the L-shaped plate and connected to the air supply pipe of the air-blowing gun. The air-blowing gun is used to blow unqualified products from the periphery of the material turntable into the waste bin.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] First, the inner hole of the bearing body is photographed by the front-end inspection and rejection mechanism. Then, the inner hole diameter is compared and calculated to determine whether it is qualified, whether the inner circumferential wall has defects, and whether the inner circumferential wall has burrs. After rejecting unqualified products, qualified bearing bodies enter the cover plate assembly mechanism and are automatically stamped and assembled with the annular cover plate.

[0023] The cover plate vibratory feeder transports the annular cover plates one by one to the cover plate conveying track. After the annular cover plates are transported to the outlet in sequence, the pull-out type plate-pulling device pulls out the annular cover plates one by one so that the suction-type plate-removing head can take them away after being lowered and aligned. The three-axis displacement platform then transports the annular cover plates to the corresponding bearing bodies on the bearing body conveying device through preset program steps, and completes the downward punching installation process. Then, the cover plate positioning detection device takes a picture of the product directly below to detect whether the annular cover plate is assembled in the annular groove on the upper surface of the corresponding bearing body.

[0024] Then, the back-end inspection and rejection mechanism performs a second photo inspection to ensure that the inner bore of the bearing with the annular cover plate meets the inspection requirements and rejects unqualified products again.

[0025] All core steps in the process of inner hole inspection and stamping and installing cover plates are handled automatically by the equipment, and materials are automatically turned over, resulting in higher production efficiency, significantly reduced human interference, and higher assembly and inspection accuracy, which helps to improve the final qualified rate of air conditioning bearings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the air conditioner bearing assembly and testing line according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the cover plate assembly mechanism in an embodiment of this application.

[0029] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0030] Figure 4 This is a schematic diagram of the bearing body transport device in the embodiments of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the adsorption-type tablet-taking head in the embodiments of this application.

[0032] Figure 6 This is a schematic diagram of the detection and rejection mechanism in an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the extrusion and polishing mechanism in an embodiment of this application.

[0034] Figure 8 This is a schematic diagram of the structure of the go / no-go gauge testing mechanism in the embodiments of this application.

[0035] Figure 9 This is a schematic diagram of the oil injection mechanism in an embodiment of this application.

[0036] Figure 10 This is a schematic diagram of the structure of the bearing body and the annular cover in the embodiments of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Inclined lifting feeder;

[0039] 2. Feeding vibratory feeder;

[0040] 3. Extrusion and polishing mechanism; 31. First chassis; 32. First transport module; 33. Extrusion module; 34. Polishing module;

[0041] 4. Detection and rejection mechanism; 41. Detection chassis; 42. Material turntable; 421. Chassis; 422. L-shaped bracket; 423. Circular tray; 43. Imaging device; 431. Column; 432. Second CCD camera; 433. Second circular fill light; 44. Air-blowing rejection device; 441. Scrap bin; 442. L-shaped plate; 443. Air gun; 444. Electrically controlled air valve;

[0042] 5. Cover plate assembly mechanism; 51. Assembly housing; 52. Cover plate vibratory feeder; 53. Cover plate conveying track; 54. Pull-out type cover plate device; 541. Pull-out cylinder; 542. Fixed seat; 543. Sliding seat; 55. Three-axis displacement platform; 56. Bearing body transport device; 561. Transport trough; 562. Trunking cover plate; 5621. Notch; 563. X-axis linear sliding module; 564. Y-axis drive cylinder; 565. Sliding table; 566. Fixed mold; 5661. Fixed U-groove; 57. Cover plate arrival detection device; 571. Vertical beam; 572. First CCD camera; 573. First ring fill light; 58. Adsorption type cover plate picking head; 581. Hollow tube; 5811. Adsorption hole; 582. Frustum conical;

[0043] 6. Detection mechanism for go / no-go gauges; 61. Second chassis; 62. Second transport module; 63. Verification module;

[0044] 7. Oil injection mechanism; 71. Third chassis; 72. Third transport module; 73. Fourth transport module; 74. CNC oil injection module. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application 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 application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0050] This application discloses an air conditioner bearing assembly and testing line. (Refer to...) Figure 1-10 The air conditioning bearing assembly and inspection line includes two sets of inspection and rejection mechanisms 4 arranged in a straight line along the X-axis and a cover plate assembly mechanism 5. The cover plate assembly mechanism 5 is located between the two sets of inspection and rejection mechanisms 4. The upper and lower end faces of the bearing body have annular grooves, and the central shaft has an inner hole. The cover plate assembly mechanism 5 is used to install the annular cover plate into the annular groove on the upper surface of the bearing body (see...). Figure 10 );

[0051] The cover plate assembly mechanism 5 includes an assembly housing 51 and a cover plate vibratory feeder 52. The top of the assembly housing 51 is equipped with a cover plate conveying track 53 arranged along the Y-axis, a pull-out type cover plate device 54 arranged along the X-axis, a three-axis displacement platform 55, a bearing housing transport device 56, and a cover plate positioning detection device 57. The bottom of the cover plate conveying track 53 has a servo motor-driven conveyor belt. The inlet of the cover plate conveying track 53 is connected to the output end of the cover plate vibratory feeder 52. The pull-out type cover plate device 54 is located at the outlet of the cover plate conveying track 53 and is used to pull out the annular cover plates one by one. The transfer platform 55 is equipped with an adsorption-type plate-removing head 58, which is used to remove the annular cover plate from the pull-out type plate-removing device 54. The three-axis displacement platform 55 is used to accurately transport the annular cover plate on the adsorption-type plate-removing head 58 to the bearing body in the bearing body transport device 56 and press it to fix it. The bearing body transport device 56 is used to drive the bearing body to move intermittently along the X-axis and stabilize the bearing body during the annular cover plate pressing process. The cover plate arrival detection device 57 is used to take a picture of the product directly below to detect whether the annular cover plate is assembled in the annular groove on the upper surface of the corresponding bearing body.

[0052] The inspection and rejection mechanism 4 includes an inspection housing 41, a material turntable 42, multiple sets of shooting devices 43, and an air-blowing rejection device 44. The material turntable 42 is installed on the top of the inspection housing 41 and is used to intermittently drive the product to be inspected to rotate. The multiple sets of shooting devices 43 and the air-blowing rejection device 44 are arranged sequentially and at intervals along the periphery of the material turntable 42.

[0053] In this embodiment, in order to improve the assembly efficiency of the annular cover plate, there are two cover plate vibratory disks 52, and each cover plate vibratory disk 52 is provided with two parallel cover plate conveying tracks 53. Each cover plate vibratory disk 52 is provided with a set of pull-out plate-picking device 54, a three-axis displacement platform 55, and an adsorption-type plate-picking head 58, so that multiple annular cover plates and multiple bearing bodies can be stamped and assembled simultaneously through a single program operation.

[0054] In this embodiment, the adsorption-type tablet-retrieving head 58 includes a vertically arranged hollow tube 581. The bottom of the hollow tube 581 is connected to a truncated cone 582 for stamping an annular cover. The outer diameter of the truncated cone 582 gradually decreases from top to bottom. The top of the hollow tube 581 is used to connect to an external vacuum negative pressure system. The lower end face of the hollow tube 581 has multiple adsorption holes 5811. The multiple adsorption holes 5811 are evenly spaced around the periphery of the truncated cone 582. The truncated cone 582 is used to insert into the central hole of the annular cover. The adsorption-type tablet-retrieving head 58 designed above can not only adapt to the shape of the annular cover and quickly complete the adsorption and tablet-retrieving work through the multiple adsorption holes 5811, but also accurately complete the stamping operation of the annular cover through the bottom surface of the hollow tube 581 and the truncated cone 582, which is conducive to ensuring accurate and firm assembly between the annular cover and the bearing body.

[0055] In this embodiment, the pull-out paddle device 54 includes a pull-out cylinder 541, a fixed base 542, and a sliding base 543. Both the pull-out cylinder 541 and the fixed base 542 are mounted on the top of the assembly housing 51. The sliding base 543 is slidably connected to the fixed base 542 and is connected to the telescopic shaft of the pull-out cylinder 541. The sliding base 543 is provided with several U-shaped grooves for the annular cover to be inserted. The openings of the U-shaped grooves correspond to the outlet of the cover conveying track 53. The pull-out cylinder 541 is arranged along the X-axis and is used to drive the sliding base 543 to slide back and forth. The pull-out paddle device 54 designed above has a simple structure and stable operation. Through a simple pull-out operation, the annular cover at the outlet of the cover conveying track 53 can be accurately removed, facilitating the subsequent quick alignment and removal of the suction-type paddle-removing head 58.

[0056] In this embodiment, the bearing body transport device 56 includes a transport trough 561, a trough cover plate 562, an X-axis linear sliding module 563, a Y-axis drive cylinder 564, a sliding table 565, and several fixed molds 566. The transport trough 561, the trough cover plate 562, and the X-axis linear sliding module 563 are all installed on the top of the assembly housing 51 and are all arranged along the X-axis direction. The bottom of the transport trough 561 has a servo motor-driven conveyor belt. Multiple bearing bodies are arranged in a straight line in the transport trough 561 and are pushed back and forth one by one for transport. The trough cover plate 562 covers the transport trough 561. To prevent the bearing body from slipping, the groove cover plate 562 has several stamped holes to allow part of the bearing body to be exposed on the upper surface. The sliding table 565 is fixed on the moving block of the X-axis linear sliding module 563. The fixed mold 566 is slidably assembled on the sliding table 565 along the Y-axis direction, and the Y-axis drive cylinder 564 is installed on the sliding table 565 to drive the end of the fixed mold 566 to insert or slide out of the transport groove 561. The end of the fixed mold 566 away from the Y-axis drive cylinder 564 has several fixed U-grooves 5661 that are adapted to the outer contour of the bearing body.

[0057] The bearing body transport device 56 designed above can not only efficiently and stably transport the bearing body quickly along the X-axis, but also, when the bearing body needs to be relatively fixed, the fixed U-groove 5661 on the fixed mold 566 can block and limit the bearing body, effectively preventing the bearing body from shaking and falling. When the Y-axis drive cylinder 564 drives the fixed mold 566 to retract, the fixed U-groove 5661 no longer blocks the bearing body, and the corresponding bearing body can continue to be transported linearly in the transport groove 561.

[0058] In this embodiment, the cover plate placement detection device 57 includes a vertical beam 571, a first CCD camera 572, and a first ring light 573. The bottom of the vertical beam 571 is fixed to the assembly housing 51. The first CCD camera 572 and the first ring light 573 are both mounted on the vertical beam 571. The first ring light is located directly below the first CCD camera 572, and the first CCD camera 572 is located directly above the transport groove 561. The cover plate placement detection device 57 designed above has a simple and stable structure and can accurately take pictures of the product directly below from above, so as to smoothly detect whether the annular cover plate is installed in the annular groove on the upper surface of the corresponding bearing body.

[0059] In this embodiment, the material turntable 42 includes a low-speed servo motor, a chassis 421, multiple L-shaped supports 422, and an annular tray 423. The low-speed servo motor is vertically mounted inside the inspection housing 41. The chassis 421 is vertically connected to the top of the output shaft of the low-speed servo motor. The annular tray 423 is located directly above the chassis 421, and both are arranged horizontally. The two ends of the L-shaped supports 422 are respectively connected to the inner periphery of the annular tray 423 and the outer periphery of the chassis 421. The multiple L-shaped supports 422 are evenly spaced along the periphery of the chassis 421. The products to be inspected are arranged sequentially on the upper surface periphery of the annular tray 423. The material turntable 42 designed above can rotate at a low speed, preventing the bearings on the upper surface periphery of the annular tray 423 from being flung off due to inertial centrifugal force. It also facilitates the quick sliding of the bearings into or out of the bearing surface of the annular tray 423 and is beneficial for quickly completing the rejection operation of unqualified products in conjunction with the air-blowing rejection device 44.

[0060] In this embodiment, to improve the clarity and accuracy of product imaging, the imaging device 43 includes a column 431 and a second CCD camera 432. The second CCD camera 432 is fixed to the column 431 by screws. The height of the second CCD camera 432 is adjustable. The column 431 is vertically installed on the top of the inspection housing 41. The imaging device 43 has three sets of three second CCD cameras 432, which are used to detect whether the inner diameter of the inner hole is qualified, to detect whether there are defects on the inner hole peripheral wall, and to detect whether there are burrs on the inner hole peripheral wall. A second ring light 433 is provided below the second CCD camera 432 used for burr detection. The second ring light 433 is installed on the corresponding column 431.

[0061] In this embodiment, the air-blowing rejection device 44 includes a waste bin 441, an L-shaped plate 442, an air-blowing gun 443, and an electrically controlled air valve 444. The waste bin 441 is located on the top surface of the inspection housing 41. The outer end of the L-shaped plate 442 is fixed to the waste bin 441. The air-blowing gun 443 is fixed in the inner circular hole of the L-shaped plate 442. The electrically controlled air valve 444 is installed on the upper surface of the L-shaped plate 442 and connected to the air supply pipe of the air-blowing gun 443. The air-blowing gun 443 is used to blow unqualified products from the periphery of the material turntable 42 into the waste bin 441. The air-blowing rejection device 44 designed above has a simple structure. After the air-blowing gun 443 is started by controlling the air-blowing operation through the electrically controlled air valve 444, the high-pressure airflow blown out by the air-blowing gun 443 can quickly blow the corresponding unqualified products into the waste bin 441, which is highly efficient and precise in operation.

[0062] A go / no-go gauge inspection mechanism 6 is also provided between the output end of the cover plate assembly mechanism 5 and the rear inspection and rejection mechanism 4. An oil injection mechanism 7 is also provided at the output end of the rear inspection and rejection mechanism 4. The oil injection mechanism 7 has two output lines: an oil injection station and a non-oil injection station. The input end of the front inspection and rejection mechanism 4 is also provided with a hole extrusion and polishing mechanism 3, a feeding vibratory plate 2, and a ramp lifting feeder 1 arranged in sequence. The ramp lifting feeder 1 is used to transport multiple bearing bodies in batches to the feeding vibratory plate 2. The feeding vibratory plate 2 is used to transport the bearing bodies one by one to the hole extrusion and polishing mechanism 3.

[0063] The extrusion and polishing mechanism 3 is used to extrude the inner hole from the inside out and to polish the peripheral sidewall of the extruded inner hole. The extrusion and polishing mechanism 3 includes a first housing 31, a first transport module 32, multiple extrusion modules 33, and multiple polishing modules 34. The structure and working principle of the first transport module 32 are the same as those of the bearing body transport device 56. The extrusion module 33 specifically includes an extrusion cylinder and an extrusion drill bit driven by the extrusion cylinder to press down. The polishing module 34 specifically includes a polishing motor and a polishing brush driven by the polishing motor to rotate. The multiple extrusion modules 33 and the multiple polishing modules 34 are all raised and lowered by vertically arranged lifting cylinders to ensure that the extrusion drill bit and the polishing brush are close to the bearing body directly below. The extrusion module 33 and the polishing module 34 are common functional structures in the bearing production field.

[0064] The go / no-go gauge inspection mechanism 6 includes a second housing 61, a second transport module 62, and multiple sets of verification modules 63. The structure and working principle of the second transport module 62 are the same as those of the bearing housing transport device 56. The verification module 63 specifically includes a servo displacement platform and a go / no-go gauge measuring device that is driven by the servo displacement platform to move precisely along the XYZ three axes, ensuring that the go / no-go gauge measuring device is close to the bearing housing directly below, thereby quickly completing the batch inner diameter inspection of the products to be inspected. The verification module 63 is a common functional structure in the bearing manufacturing field and belongs to the existing technology common in this field, and will not be described in detail in this embodiment. In this embodiment, the servo displacement platform and the three-axis displacement platform 55 are both common motion modules in mechanical equipment.

[0065] The oiling mechanism 7 includes a third housing 71, a third transport module 72, a fourth transport module 73, and a CNC oiling module 74. The structure and working principle of the third transport module 72 and the fourth transport module 73 are the same as those of the bearing body transport device 56. The bearings on the third transport module 72 do not need to be oiled, while the bearings on the fourth transport module 73 do. The CNC oiling module 74 is located directly above the fourth transport module 73 and is used to add lubricating oil to the bearings through the oiling gun head. The CNC oiling module 74 is a common functional structure in the bearing manufacturing industry.

[0066] The beneficial technical effects of the air conditioner bearing assembly and testing line in this application embodiment are roughly as follows:

[0067] First, the front-end detection and rejection mechanism 4 takes pictures of the inner hole of the bearing body. Then, the system compares the obtained pictures to calculate whether the inner hole diameter is qualified, whether the inner circumferential wall has defects, and whether the inner circumferential wall has burrs. After rejecting unqualified products, qualified bearing bodies enter the cover plate assembly mechanism 5 and are automatically stamped and assembled with the annular cover plate.

[0068] The cover plate vibratory plate 52 transports the annular cover plates one by one to the cover plate conveying track 53. After the annular cover plates are transported to the outlet in sequence, the pull-out type plate-pulling device 54 pulls out the annular cover plates one by one so that the suction type plate-removing head 58 after the alignment is lowered can take them away. The three-axis displacement platform 55 then transports the annular cover plates to the corresponding bearing body on the bearing body conveying device 56 through the preset program steps, and completes the downward punching installation process. Then, the cover plate positioning detection device 57 takes a picture of the product directly below to detect whether the annular cover plate is installed in the annular groove on the upper surface of the corresponding bearing body.

[0069] Then, the back-end inspection and rejection mechanism 4 performs a second photo inspection to ensure that the inner bore of the bearing with the annular cover plate meets the inspection requirements and rejects unqualified products again.

[0070] All core steps in the process of inner hole inspection and stamping and installing cover plates are handled automatically by the equipment, and materials are automatically turned over, resulting in higher production efficiency, significantly reduced human interference, and higher assembly and inspection accuracy, which helps to improve the final qualified rate of air conditioning bearings.

[0071] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An air conditioner bearing assembly and testing line, characterized in that, It includes two sets of detection and rejection mechanisms (4) arranged in a straight line along the X-axis and a cover plate assembly mechanism (5). The cover plate assembly mechanism (5) is located between the two sets of detection and rejection mechanisms (4). The upper and lower end faces of the bearing body have annular grooves and the central shaft has an inner hole. The cover plate assembly mechanism (5) is used to install the annular cover plate into the annular groove on the upper surface of the bearing body. The cover plate assembly mechanism (5) includes an assembly housing (51) and a cover plate vibratory feeder (52). The top of the assembly housing (51) is provided with a cover plate conveying track (53) arranged along the Y-axis, a pull-out type paddle device (54) arranged along the X-axis, a three-axis displacement platform (55), a bearing body transport device (56), and a cover plate positioning detection device (57). The bottom of the cover plate conveying track (53) has a servo motor-driven conveyor belt. The entrance of the cover plate conveying track (53) is connected to the cover plate vibratory feeder (52). At the output end of the ), the pull-out type paddle device (54) is located at the outlet of the cover plate conveying track (53) and is used to paddle out the annular cover plates one by one. The three-axis displacement platform (55) is provided with an adsorption type plate-taking head (58). The adsorption type plate-taking head (58) is used to take away the annular cover plates in the pull-out type paddle device (54). The three-axis displacement platform (55) is used to accurately transport the annular cover plates on the adsorption type plate-taking head (58) to the bearing body in the bearing body transport device (56) and press and fix them. The detection and rejection mechanism (4) includes a detection housing (41), a material turntable (42), multiple sets of shooting devices (43), and an air-blowing rejection device (44). The material turntable (42) is installed on the top of the detection housing (41) and is used to intermittently drive the product to be inspected to rotate. The multiple sets of shooting devices (43) and the air-blowing rejection device (44) are arranged sequentially and at intervals along the periphery of the material turntable (42).

2. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, There are two cover sheet vibrating discs (52), and each cover sheet vibrating disc (52) is provided with two parallel cover sheet conveying tracks (53). Each cover sheet vibrating disc (52) is provided with a set of pull-out sheet-picking devices (54), a three-axis displacement platform (55), and an adsorption-type sheet-picking head (58).

3. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The adsorption-type tablet pressing head (58) includes a vertically arranged hollow tube (581). The bottom of the hollow tube (581) is connected to a truncated cone (582) for stamping an annular cover. The outer diameter of the truncated cone (582) gradually decreases from top to bottom. The top of the hollow tube (581) is used to connect to an external vacuum negative pressure system. The lower end face of the hollow tube (581) has multiple adsorption holes (5811). The multiple adsorption holes (5811) are evenly spaced around the periphery of the truncated cone (582). The truncated cone (582) is used to insert into the central hole of the annular cover.

4. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The pull-out paddle device (54) includes a pull-out cylinder (541), a fixed seat (542), and a sliding seat (543). The pull-out cylinder (541) and the fixed seat (542) are both installed on the top of the assembly housing (51). The sliding seat (543) is slidably connected to the fixed seat (542). The sliding seat (543) is connected to the telescopic shaft of the pull-out cylinder (541). The sliding seat (543) is provided with several U-shaped grooves for the annular cover to be inserted. The opening of the U-shaped groove corresponds to the outlet of the cover conveying track (53). The pull-out cylinder (541) is arranged along the X-axis and is used to drive the sliding seat (543) to slide back and forth.

5. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The bearing housing transport device (56) includes a transport trough (561), a trough cover plate (562), an X-axis linear sliding module (563), a Y-axis drive cylinder (564), a sliding table (565), and several fixed molds (566). The transport trough (561), the trough cover plate (562), and the X-axis linear sliding module (563) are all installed on the top of the assembly housing (51) and are all arranged along the X-axis direction. The bottom of the transport trough (561) has a servo motor-driven conveyor belt. Multiple bearing housings are arranged in a straight line in the transport trough (561) and are pushed back and forth one by one for transport. The trough cover plate (562) covers the transport trough (561) to prevent the bearing housings from being moved. The bearing body slides out, and the groove cover plate (562) has several stamped holes for a notch (5621) to expose part of the bearing body on the upper surface. The sliding table (565) is fixed on the moving block of the X-axis linear sliding module (563). The fixed mold (566) is slidably assembled on the sliding table (565) along the Y-axis direction, and the Y-axis drive cylinder (564) is installed on the sliding table (565) to drive the end of the fixed mold (566) to insert or slide out of the transport groove (561). The end of the fixed mold (566) away from the Y-axis drive cylinder (564) has several fixed U-grooves (5661) that are adapted to the outer contour of the bearing body.

6. The air conditioner bearing assembly and testing line according to claim 5, characterized in that, The cover plate positioning detection device (57) includes a vertical beam (571), a first CCD camera (572), and a first ring light (573). The bottom of the vertical beam (571) is fixed to the assembly box (51). The first CCD camera (572) and the first ring light (573) are both mounted on the vertical beam (571). The first ring light is located directly below the first CCD camera (572), and the first CCD camera (572) is located directly above the transport trough (561).

7. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The material turntable (42) includes a low-speed servo motor, a chassis (421), multiple L-shaped brackets (422) and an annular tray (423). The low-speed servo motor is vertically installed inside the inspection housing (41). The chassis (421) is vertically connected to the top of the output shaft of the low-speed servo motor. The annular tray (423) is located directly above the chassis (421) and both are arranged horizontally. The two ends of the L-shaped brackets (422) are respectively connected to the inner periphery of the annular tray (423) and the outer periphery of the chassis (421). Multiple L-shaped brackets (422) are evenly spaced along the periphery of the chassis (421). The products to be inspected are arranged sequentially along the periphery of the upper surface of the annular tray (423).

8. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The shooting device (43) includes a column (431) and a second CCD camera (432). The second CCD camera (432) is fixed to the column (431) by screws. The height of the second CCD camera (432) is adjustable. The column (431) is vertically installed on the top of the detection housing (41).

9. The air conditioner bearing assembly and testing line according to claim 8, characterized in that, The shooting device (43) has three sets of three second CCD cameras (432) for detecting whether the inner diameter of the inner hole is qualified, for detecting whether there are defects in the inner hole peripheral wall, and for detecting whether there are burrs in the inner hole peripheral wall. A second ring light (433) is provided below the second CCD camera (432) used for detecting burrs. The second ring light (433) is installed on the corresponding column (431).

10. The air conditioner bearing assembly and testing line according to claim 1, characterized in that, The air-blowing rejecting device (44) includes a waste bin (441), an L-shaped plate (442), an air-blowing gun (443), and an electrically controlled air valve (444). The waste bin (441) is located on the top surface of the testing machine housing (41). The outer end of the L-shaped plate (442) is fixed to the waste bin (441). The air-blowing gun (443) is fixed in the inner end round hole of the L-shaped plate (442). The electrically controlled air valve (444) is installed on the upper surface of the L-shaped plate (442) and connected to the air supply pipe of the air-blowing gun (443). The air-blowing gun (443) is used to blow unqualified products from the periphery of the material turntable (42) into the waste bin (441).

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