Universal joint shaft sleeve automatic screening device

Abstract

The utility model belongs to the field of universal joint, concretely is a kind of universal joint axle sleeve automatic screening device, the upper slide of first conveyer belt is provided with hollow board, the lower end surface of hollow board is connected and is provided with folding air bag, the lower port of folding air bag is provided with fixed plate, the inner top surface of folding air bag is provided with pressure sensor, the output of pressure sensor is connected and is provided with support rod, support rod and fixed plate are slidably connected, the lower end surface of fixed plate is provided with buffer ring outside support rod, the lower end surface of buffer ring is evenly provided with multiple arc spring leafs in ring shape, the lower end surface of multiple arc spring leafs is connected and is provided with connecting ring, the lower end surface of fixed plate is provided with multiple first check valve that is connected folding air bag inside and outside outside support rod, the inner bottom of folding air bag is provided with multiple second check valve that is connected inside and outside. The utility model is provided with arc spring leaf and other components, so that the device is formed in the process of selecting axle sleeve, the correction of axle sleeve position.

Description

Technical Field

[0001] This utility model belongs to the field of universal joint technology, and in particular relates to an automatic screening device for universal joint bushings. Background Technology

[0002] A universal joint is a joint-type mechanical device that can transmit torque and rotational motion from one shaft to another when the included angle remains constant or changes. It is mainly used for connecting steering shafts and drive shafts in automobiles, construction machinery, agricultural machinery, etc., to form universal joint steering devices or transmission devices. There are many types of universal joints, among which the rigid universal joint is widely used.

[0003] Patent application CN201310023495.5 discloses an automatic pre-assembly screening mechanism for universal joint bushings, comprising a support frame, a enclosure, a turntable, a first cylinder, a platform, an infrared detector, a second cylinder, and a conveyor. This invention uses a turntable combined with the enclosure, infrared detector, and cylinder to select the position of the universal joint bushing. An opening is provided in the enclosure, with one end connected to a collection channel on the turntable. A collection channel on the outside of the opening collects bushings in the correct orientation. An infrared detector is located at the upper end of the outside of the opening to detect whether the bushing orientation is correct. The infrared detector is connected to the cylinder; when an incorrect bushing orientation is detected, the cylinder, upon receiving a signal from the infrared detector, activates and pushes the bushing back into the turntable via a push rod. This achieves fully automatic screening of the bushing orientation, simplifying subsequent bushing processing steps, improving work efficiency and effectiveness, reducing manual labor, and lowering production costs.

[0004] Existing technology uses an infrared detector to check the front and back of the bushing, thereby selecting the bushing's placement orientation, but it still has shortcomings:

[0005] First, existing screening devices can only distinguish and screen the front and back of large bushings when screening them, and lack the operation of correcting the position of the bushings. As a result, when the bushings are moved to the assembly stage, assembly failure is likely to occur, which in turn affects the subsequent assembly efficiency of the bushings.

[0006] Secondly, the production process of existing large bushings usually requires grinding, which may cause impurities generated during grinding to stick to both the inner and outer walls of the bushing. If the impurities inside the bushing are not cleaned during the bushing screening process and are directly assembled later, it will affect the service life of the universal joint. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this invention provides an automatic universal joint bushing sorting device. Through the arrangement of components such as arc-shaped elastic sheets, this invention enables the device to correct the position of the bushings during the sorting process; and through the arrangement of components such as fixing plates, it can simultaneously perform air blowing cleaning of the inside of the bushings during sorting and correction.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic screening device for universal joint bushings, comprising two side plates, a first conveyor belt rotatably disposed between the two side plates, a hollow plate slidably disposed above the first conveyor belt, a folding airbag connected to the lower end face of the hollow plate, a fixing plate disposed at the lower port of the folding airbag, a pressure sensor disposed on the inner top surface of the folding airbag, a support rod connected to the output end of the pressure sensor, the support rod being slidably connected to the fixing plate, a buffer ring disposed on the lower end face of the fixing plate outside the support rod, a plurality of arc-shaped elastic plates uniformly disposed in a ring shape on the lower end face of the buffer ring, a connecting ring disposed on the lower end face of the plurality of arc-shaped elastic plates, a plurality of first one-way valves communicating with the inside and outside of the folding airbag disposed on the lower end face of the fixing plate outside the support rod, and a plurality of second one-way valves communicating with the inside and outside of the folding airbag disposed on the inner bottom surface of the folding airbag outside the pressure sensor.

[0009] Optionally, a limiting plate is fixedly provided at the bottom of the support rod, and a buffer block is provided on the lower end surface of the limiting plate.

[0010] Optionally, a spring is provided on the outside of the support rod between the folding airbag and the fixing plate.

[0011] Optionally, the upper surface of the hollow plate is provided with multiple air inlets, and a filter plate is provided inside the air inlets.

[0012] Optionally, a feeding plate is slidably disposed on one side of the hollow plate on the upper end face of the first conveyor belt, a discharge port is disposed on one side of the feeding plate on the side wall of the side plate, and a storage frame is disposed on one side of the discharge port on the side wall of the side plate.

[0013] Optionally, the lower end face of the feeding plate is provided with multiple bristles, and the multiple bristles slide against the conveying end face of the first conveyor belt.

[0014] Optionally, a groove is provided on one side of the feeding plate on the side wall of the side plate, and the groove is slidably engaged with the feeding plate.

[0015] Optionally, a second conveyor belt is rotatably disposed on one side of the first conveyor belt between two side plates. The second conveyor belt is inclined upward along the conveying direction. A non-powered conveyor belt is slidably disposed on the upper end surface of the second conveyor belt. A long groove is provided on the side wall of the side plate on one side of the non-powered conveyor belt. A circular plate is rotatably disposed inside the long groove. Multiple arc-shaped snap-fit ​​grooves are evenly disposed on the outer circular surface of the circular plate.

[0016] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0017] This invention, through the arrangement of components such as a fixed plate, arc-shaped elastic sheets, and connecting rings, enables the device to correct the position of the bushings by extruding and deforming multiple arc-shaped elastic sheets outward during the screening process, thereby improving the yield of subsequent bushing assembly.

[0018] This utility model, through the setting of components such as a fixing plate, a filter plate, and a first one-way valve, can simultaneously screen and correct the bushing while blowing air to clean the inside of the bushing, thereby improving the cleanliness of the bushing and thus increasing the service life of the universal joint after assembly.

[0019] This invention, through the arrangement of a circular plate, an arc-shaped locking groove, and a non-powered conveyor belt, enables the conveying of bushings of different sizes by the sliding action of the non-powered conveyor belt in conjunction with the rotation of the circular plate. Furthermore, the distance between each pair of bushings can be controlled by the rotation speed of the circular plate, allowing for timely adjustments based on the subsequent bushing screening rate. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 for Figure 2 A three-dimensional cross-sectional view at point AA;

[0023] Figure 4 for Figure 3 Enlarged view of a section at point B;

[0024] Figure 5 for Figure 1 A magnified view of a section at point C.

[0025] In the diagram: Side plate 10, First conveyor belt 11, Support frame 12, Hollow plate 13, Folding airbag 14, Fixing plate 15, Arc-shaped elastic sheet 16, Connecting ring 17, Support rod 18, Pressure sensor 19, Limiting plate 20, Buffer block 21, First one-way valve 22, Filter plate 23, Air inlet 24, Second one-way valve 25, Groove 26, Feeding plate 27, Brush bristles 28, Discharge port 29, Storage frame 30, Leakage hole 31, Support plate 32, Second conveyor belt 33, Vibrating screen 34, Connecting plate 35, Long groove 36, Circular plate 37, Arc-shaped snap-fit ​​groove 38, Non-powered conveyor belt 39, Buffer ring 40, Object sensor 41, Spring 42. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1:

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an automatic screening device for universal joint bushings includes two side plates 10, with a first conveyor belt 11 rotatably mounted between the two side plates 10. A motor for driving the first conveyor belt 11 is mounted on the side wall of one side of the side plate 10. A hollow plate 13 is slidably mounted above the first conveyor belt 11. A support frame 12 is mounted on the upper surface of the side plate 10 above the hollow plate 13. A first push cylinder is mounted on the upper surface of the support frame 12. The first push cylinder is a conventional push cylinder, representing existing technology. The output end of the first push cylinder passes through the support frame 12 and is fixedly connected to the upper surface of the hollow plate 13. The lower end of the hollow plate 13... A folding airbag 14 is provided on the surface of the folding airbag 14. A fixing plate 15 is provided at the lower port of the folding airbag 14. A pressure sensor 19 is provided on the inner top surface of the folding airbag 14. The pressure sensor 19 is a common pressure sensor and is existing technology. A support rod 18 is connected to the output end of the pressure sensor 19. The support rod 18 is slidably connected to the fixing plate 15. The support rod 18 serves to guide the relative sliding of the hollow plate 13 and the fixing plate 15. A support plate 32 is provided inside the first conveyor belt 11 between the two side plates 10. During the bushing detection process, the support plate 32 serves to support the bottom of the bushing.

[0028] A spring 42 is provided on the outside of the support rod 18 between the folding airbag 14 and the fixed plate 15. The spring 42 provides elastic support between the hollow plate 13 and the fixed plate 15, facilitating the rapid recovery of the folding airbag 14 after compression. A buffer ring 40 is provided on the lower end face of the fixed plate 15 on the outside of the support rod 18. Multiple arc-shaped elastic sheets 16 are evenly arranged in a ring on the lower end face of the buffer ring 40. The arc-shaped elastic sheets 16 are curved outwards. Connecting rings 17 are provided on the lower end faces of the multiple arc-shaped elastic sheets 16. The connecting rings 17 connect and fix the bottom of the multiple arc-shaped elastic sheets 16, so that the multiple arc-shaped elastic sheets 16 can deform synchronously under the action of a vertically downward external force. Multiple connecting rings 17 are provided on the lower end face of the fixed plate 15 on the outside of the support rod 18. The first one-way valve 22 inside and outside the folding airbag 14 is arranged so that when the folding airbag 14 is squeezed, the air inside the folding airbag 14 can only be ejected outward through the first one-way valve 22. The pressure sensor 19 is provided with a number of second one-way valves 25 connecting the inside and outside of the folding airbag 14 on the outer side of the inner bottom surface. The arrangement of multiple air inlets 24 allows the folding airbag 14 to be supplied with gas from the outside to the inside of the folding airbag 14 when it is not filled with air under the elastic support of the spring 42. This ensures that the air inside the folding airbag 14 can only be discharged through the multiple first one-way valves 22 and can only be replenished through the multiple second one-way valves. This ensures that the floating dust generated when blowing and cleaning the inside of the bushing will not be sucked into the inside of the folding airbag 14.

[0029] The output end of the first push cylinder drives the hollow plate 13 to move vertically downward. The hollow plate 13 drives the folding airbag 14 to move vertically downward, which in turn drives the support rod 18 to move downward. Under the stroke distance set at the output end of the first push cylinder, if the opening of the bushing is facing downward, before the stroke of the first push cylinder is completed, the bottom of the support rod 18 will be squeezed against the upper end face of the bushing, which will cause the top of the support rod 18 to squeeze the output end of the pressure sensor 19. The pressure received by the output end of the pressure sensor 19 reflects whether the opening of the bushing is correct. If the external pressure on the pressure sensor 19 is too large, it means that the opening of the bushing is facing downward, and vice versa. The sum of the initial elastic tension of the multiple arc-shaped elastic plates 16 is less than the initial elastic tension of the spring 42.

[0030] If the opening of the bushing faces upward, the output end of the first push cylinder drives the hollow plate 13, connecting ring 17, and fixing plate 15 to move vertically downward. The connecting ring 17 and multiple arc-shaped elastic plates 16 first extend into the interior of the bushing. As the first push cylinder continues to extend, and since the sum of the initial elastic tension of the multiple arc-shaped elastic plates 16 is less than the initial elastic tension of the spring 42, the fixing plate 15 moves downward with the hollow plate 13 under the elastic support of the spring 42, thereby forming an elastic compression on the multiple arc-shaped elastic plates 16, causing the multiple arc-shaped elastic plates 16 to deform and expand outward, thereby forming a compression on the inner circular surface of the bushing, so that the bushing can move to directly below the hollow plate 13, thereby forming a position correction of the bushing.

[0031] The output end of the first push cylinder continues to extend, driving the hollow plate to continue moving downwards until the sum of the elastic tension of the multiple arc-shaped elastic plates 16 is greater than the elastic tension of the spring 42. This causes the hollow plate 13 to move closer to the folding airbag 14, thereby compressing the folding airbag 14 between the hollow plate 13 and the fixed plate 15. This causes the air inside the folding airbag 14 to be ejected by multiple first one-way valves 22, thereby blowing air to clean the inside of the bushing and ensuring the cleanliness of the inside of the bushing.

[0032] Furthermore, such as Figure 4 As shown, a limiting plate 20 is fixedly installed at the bottom of the support rod 18. The limiting plate 20 limits the sliding of the support rod 18, thereby limiting the distance between the hollow plate 13 and the fixed plate 15 when the support rod 18 moves vertically with the hollow plate 13 and under the elastic tension of the spring 42. A buffer block 21 is provided on the lower end face of the limiting plate 20. When the bushing is inspected, the limiting plate 20 will move vertically downward with the support rod 18 and the hollow plate 13, and the limiting plate 20 will extend into the bushing and contact the inner bottom surface of the bushing. The buffer block 21 can effectively prevent the limiting plate 20 from colliding with the bushing when it moves vertically with the support rod 18 and other components, thereby protecting the bushing during screening.

[0033] Furthermore, such as Figure 4 As shown, the upper surface of the hollow plate 13 is provided with multiple air inlets 24, and the inside of the air inlets 24 is provided with a filter plate 23. The filter plate 23 can filter the air entering the folded airbag 14 through multiple second one-way valves 25, thereby preventing air containing impurities from being squeezed out by multiple first one-way valves 22 and causing secondary contamination of the bushing when blowing air to clean the inside of the bushing, thus improving the cleaning effect of the device on the bushing.

[0034] Furthermore, such as Figure 4As shown, a feeding plate 27 is slidably disposed on one side of the hollow plate 13 on the upper end face of the first conveyor belt 11. A second pusher cylinder is disposed on one side of the feeding plate 27 on the side wall of the side plate 10. The output end of the second pusher cylinder passes through the side plate 10 and is fixedly connected to the side wall of the feeding plate 27. The second pusher cylinder is a common pusher cylinder, which is existing technology. A discharge port 29 is disposed on one side of the feeding plate 27 on the side wall of the side plate 10. A storage frame 30 is disposed on one side of the discharge port 29 on the side wall of the side plate 10. The output end of the second pusher cylinder drives the feeding plate 27 to move horizontally, thereby pushing the bushing with the opening facing downward through the discharge port 29 into the interior of the storage frame 30 for storage. The inner bottom surface of the storage frame 30 is provided with multiple drainage holes 31. The multiple drainage holes 31 are provided to facilitate the filtration of dust falling into the interior of the storage frame 30 and improve the cleanliness of the unqualified bushings inside the storage frame 30.

[0035] Furthermore, such as Figure 5 As shown, the lower end face of the unloading plate 27 is provided with multiple bristles 28. The multiple bristles 28 slide and abut against the conveying end face of the first conveyor belt 11. The multiple bristles 28 can clean the conveying end face of the first conveyor belt 11 during the horizontal movement of the unloading plate 27.

[0036] Furthermore, such as Figure 5 As shown, a groove 26 is provided on the side wall of the side plate 10 on one side of the blanking plate 27. The groove 26 is slidably engaged with the blanking plate 27. The groove 26 facilitates the engagement of the blanking plate 27. When the blanking plate 27 is not working, it can prevent the blanking plate 27 from colliding with the larger bushing, thereby affecting the positional correction accuracy of the bushing.

[0037] Furthermore, such as Figure 3 As shown, a fixed connecting plate is provided on one side of the support frame 12 between the two side plates 10. An object sensor 41 is provided on the lower end face of the fixed connecting plate. The object sensor 41 is existing technology and can detect whether there is a bushing passing below, so as to coordinate with the first push cylinder and the first conveyor belt 11 to screen the bushing.

[0038] In this solution, the coordinated operation of multiple first push cylinders, second push cylinders, motors, conveyor belts, and object sensors 41 forms the screening process for the bushings. In actual production, controllers, sensors, or control circuits are installed outside these drive components, and existing technologies can be used. These are not technical issues that this solution needs to address, so this solution will not elaborate on them further. Example 2:

[0039] Based on Example 1, further examples are made, such as... Figure 1 , Figure 2 and Figure 3As shown, a second conveyor belt 33 is rotatably mounted on one side of the first conveyor belt 11 between two side plates 10. A connecting plate 35 is provided between the second conveyor belt 33 and the first conveyor belt 11. A motor for driving the second conveyor belt 33 is mounted on the side wall of the side plate 10 on one side of the second conveyor belt 33. A vibrating screen 34 is mounted at one end of the second conveyor belt 33, and the output end of the vibrating screen 34 is fixedly connected to one end of the second conveyor belt 33. The vibrating screen 34 is a common vibrating screen, which is existing technology. The second conveyor belt 33 is inclined upward along the conveying direction. The inclined arrangement of the second conveyor belt 33 can effectively prevent too many bushings from entering the upper surface of the second conveyor belt 33 under the conveying of the vibrating screen 34, thus affecting the adjustment of the distance between the circular plate 37 and the unpowered conveyor belt 39 and the bushings entering the conveying end face of the first conveyor belt 11. A non-powered conveyor belt 39 is slidably arranged on the upper end face of belt 33. The non-powered conveyor belt 39 is provided with a clamping plate at the top and bottom. Two conveyor rollers are rotatably arranged between the two clamping plates. A conveyor belt is rotatably arranged outside the two conveyor rollers. A third push cylinder is provided on the side wall of the side plate 10 on one side of the non-powered conveyor belt 39. The output end of the third push cylinder passes through the side plate 10 and is fixedly connected to the upper clamping plate of the non-powered conveyor belt 39. A long groove 36 is provided on the side wall of the side plate 10 on one side of the non-powered conveyor belt 39. A circular plate 37 is rotatably arranged inside the long groove 36. A motor that provides power for the rotation of the circular plate 37 is provided on the upper end face of the side plate 10 above the circular plate 37. Multiple arc-shaped snap-fit ​​grooves 38 are evenly arranged on the outer circular surface of the circular plate 37. The distance between the bushings is controlled by the rotation speed of the circular plate 37.

[0040] The output end of the third push cylinder drives the unpowered conveyor belt 39 to move horizontally. In conjunction with the multiple arc-shaped snap-fit ​​grooves 38 on the circular plate 37, it can adjust the distance of bushings of different sizes. The unpowered conveyor belt 39 can move horizontally on the bushing through the rotation of the conveyor belt inside the unpowered conveyor belt 39 when the circular plate 37 moves horizontally, while also avoiding collisions with the outside of the bushing.

[0041] When controlling the distance between multiple bushings moving to the conveyor end face of the first conveyor belt 11, the third push cylinder is first activated to adjust the distance between the unpowered conveyor belt 39 and the circular plate 37, thereby adapting to the diameter of the bushing to be screened. Subsequently, the output end of the vibrating screen 34 continuously conveys bushings to the conveyor end face of the second conveyor belt 33. Under the transmission action of the second conveyor belt 33 and the rotational speed of the circular plate 37, the bushings are transmitted at intervals, thereby controlling the distance between the bushings moving to the end face of the first transmission belt.

[0042] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0043] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0044] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. An automatic sorting device for universal joint bushings, comprising two side plates (10), wherein a first conveyor belt (11) is rotatably disposed between the two side plates (10), characterized in that, A hollow plate (13) is slidably disposed above the first conveyor belt (11). A folding airbag (14) is connected to the lower end face of the hollow plate (13). A fixing plate (15) is disposed at the lower end of the folding airbag (14). A pressure sensor (19) is disposed on the inner top surface of the folding airbag (14). A support rod (18) is connected to the output end of the pressure sensor (19). The support rod (18) is slidably connected to the fixing plate (15). The outside of the support rod (18) is adjacent to the fixing plate (15). A buffer ring (40) is provided on the lower end face. A plurality of arc-shaped elastic sheets (16) are uniformly arranged on the lower end face of the buffer ring (40). A connecting ring (17) is provided on the lower end face of the plurality of arc-shaped elastic sheets (16). A plurality of first one-way valves (22) communicating with the inside and outside of the folded airbag (14) are provided on the lower end face of the fixed plate (15) outside the support rod (18). A plurality of second one-way valves (25) communicating with the inside and outside of the folded airbag (14) are provided on the inner bottom surface of the pressure sensor (19) outside the pressure sensor (19).

2. The automatic sorting device for universal joint bushings according to claim 1, characterized in that, A limiting plate (20) is fixedly provided at the bottom of the support rod (18), and a buffer block (21) is provided on the lower end surface of the limiting plate (20).

3. The automatic sorting device for universal joint bushings according to claim 2, characterized in that, A spring (42) is provided on the outside of the support rod (18) between the folding airbag (14) and the fixing plate (15).

4. The automatic sorting device for universal joint bushings according to claim 1, characterized in that, The upper surface of the hollow plate (13) is provided with a plurality of air inlets (24), and a filter plate (23) is provided inside the air inlet (24).

5. The automatic sorting device for universal joint bushings according to claim 4, characterized in that, A feeding plate (27) is slidably disposed on one side of the hollow plate (13) on the upper end face of the first conveyor belt (11). A discharge port (29) is disposed on one side of the feeding plate (27) on the side wall of the side plate (10). A storage frame (30) is disposed on one side of the discharge port (29) on the side wall of the side plate (10).

6. The automatic sorting device for universal joint bushings according to claim 5, characterized in that, The lower end face of the feeding plate (27) is provided with a plurality of bristles (28), and the plurality of bristles (28) slide against the conveying end face of the first conveyor belt (11).

7. The automatic screening device for universal joint bushings according to claim 6, characterized in that, The material feed plate (27) has a groove (26) on one side of the side wall of the side plate (10), and the groove (26) is slidably engaged with the material feed plate (27).

8. The automatic sorting device for universal joint bushings according to claim 1, characterized in that, A second conveyor belt (33) is rotatably disposed on one side of the first conveyor belt (11) between two side plates (10). The second conveyor belt (33) is inclined upward along the conveying direction. A non-powered conveyor belt (39) is slidably disposed on the upper end surface of the second conveyor belt (33). A long groove (36) is disposed on one side of the non-powered conveyor belt (39) on the side wall of the side plate (10). A circular plate (37) is rotatably disposed inside the long groove (36). A plurality of arc-shaped snap-fit ​​grooves (38) are evenly disposed on the outer circular surface of the circular plate (37).

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