Device for automatically detecting groove milling position of besides-star wheel
By designing a device that automatically detects the milling slot position of the alien wheel, and automatically detects the keyway position of the alien wheel by using a robot and a cylinder system, the shortcomings of manual detection in the prior art are solved and efficient automatic detection is achieved.
Patent Information
- Application Number
- CN202411934553.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-07-04
AI Technical Summary
In the prior art, the detection of the position of the alien wheel milling slot requires manual operation, and the labor amount is large and not suitable for automated continuous inspection.
A device is designed to automatically detect the position of the milling slot of the alien wheel. The alien wheel is installed on the alien wheel mount through a robot, and the keyway position is automatically detected by the detection ring body and the oil cylinder system, combined with proximity switch sensing, and automatic continuous detection is achieved.
Automatic continuous detection of the position of the alien wheel milling slot is realized, reducing the amount of manual labor and improving the detection efficiency and effect.
Smart Images
Figure CN120252479A_ABST
Abstract
Description
Technical Field:
[0001] The present invention relates to the technical field of automotive parts inspection, and more specifically to a device for automatically detecting the milling groove position of an outer star wheel. Background Art:
[0002] The outer star wheel is a key component in the constant velocity universal joint of the automotive steering structure and is used for power transmission between any two rotating shafts with intersecting axes and frequently changing relative positions on the vehicle.
[0003] Generally, the end of the handle part, i.e., the rod part, of the outer star wheel needs to be milled to form a key groove, and a corresponding key block is used to connect with the corresponding component in the transmission system to achieve the purpose of power transmission.
[0004] The position of its key groove directly affects the connection degree between the outer star wheel and the connecting component, and the quality of the connection degree directly affects the performance of the product. Therefore, the detection of the key groove position during the processing is crucial.
[0005] The existing conventional detection method is to fix two detection modules that match the shape of the key groove on the inner side wall of the ring body, and then manually insert them into the top of the rod part of the outer star wheel so that the two detection modules are inserted into the corresponding two key grooves for detection to check whether the processing is in place. If they cannot be inserted, it means that the processing position is inaccurate.
[0006] Its manual operation requires a large amount of manual labor and is not suitable for the need of automated continuous detection. Summary of the Invention:
[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for automatically detecting the milling groove position of an outer star wheel. It can be installed on one side of the manipulator. By automatically installing the outer star wheel to be detected on the outer star wheel mounting seat through the manipulator, automatic detection can be carried out. It is suitable for automated continuous detection and has good use effects.
[0008] The solution of the present invention to solve the above technical problems is:
[0009] A device for automatically detecting the milling groove position of an outer star wheel includes a fixed bottom plate. The middle part of the top surface of the fixed bottom plate is fixed with an outer star wheel mounting seat. The middle part of the top surface of the outer star wheel mounting seat is formed with an upper convex part, which is matched with the inner cavity at the bottom of the outer star wheel. The outer star wheel to be detected is located on the top surface of the outer star wheel mounting seat, and the upper convex part is inserted into and matched with the inner cavity of the outer star wheel.
[0010] On the top surface of the fixed bottom plate behind the outer star wheel mounting seat, a fixing mechanism is fixed. The bottom plate of the pressing seat of the fixing mechanism presses against the top surface of the outer star wheel. In the middle of the top surface of the outer star wheel, a rod body extending upward is formed. On the left and right side walls at the top end of the rod body, key grooves formed by milling are formed.
[0011] On the top surface of the fixed bottom plate, an upper support frame is fixed. In the middle of the top surface of the top plate of the upper support frame, a lifting oil cylinder is fixed. The bottom end of the push rod of the lifting oil cylinder extends out of the bottom surface of the top plate of the upper support frame and is fixed with a lifting plate. On the bottom surface of the lifting plate, a lower connecting frame is fixed. At the bottom of the lower connecting frame, a detection ring body is fixed. On the left and right inner side walls of the detection ring body, detection blocks are fixed respectively, and the detection blocks correspond to the corresponding key grooves below.
[0012] The lower parts of the opposite wall surfaces of the two detection blocks are arc-shaped wall surfaces, which are matched with the inner wall surfaces at the bottoms of the corresponding key grooves.
[0013] The upper support frame includes a top plate. At the front and rear parts of the left and right parts of the bottom surface of the top plate, vertical support legs are fixed respectively, and the bottom ends of the vertical support legs are fixed on the top surface of the fixed bottom plate.
[0014] The fixing mechanism includes a lower fixing frame fixed on the top surface of the fixed bottom plate. On the bottom surface of the top plate of the lower fixing frame, a pressing oil cylinder is fixed. The top end of the push rod of the pressing oil cylinder extends out of the top surface of the top plate of the lower fixing frame and is fixed with a lifting seat. On the front top surface of the bottom plate of the lifting seat, a vertical plate is fixed. On the rear wall surface of the vertical plate, a telescopic oil cylinder is fixed. The front end of the push rod of the telescopic oil cylinder extends out of the front wall surface of the vertical plate and is fixed with a pressing seat.
[0015] The pressing seat includes a bottom plate. On the rear wall surface of the bottom plate, a rear fixing plate extending upward is fixed. The front end of the push rod of the telescopic oil cylinder is fixed on the rear wall surface of the rear fixing plate. In the middle of the front wall surface of the bottom plate, a groove extending backward is formed. The rod body of the outer star wheel is inserted into the groove, and its outer side wall is close to the inner side wall of the groove. On the rear wall surface of the rear fixing plate, a rear guiding rod is fixed, and the rear guiding rod is inserted into a guiding through hole extending in the front and rear directions formed on the vertical plate of the lifting seat.
[0016] In the middle of the upper part of the rear fixing plate, a proximity switch is fixed. The sensing end of the proximity switch extends out of the front wall surface of the rear fixing plate and corresponds to the rear wall surface at the top of the rod body of the outer star wheel;
[0017] In the middle of the rear wall surface of the detection ring body, a rear convex part is fixed or formed, which corresponds to the sensing end of the proximity switch.
[0018] The prominent effect of the present invention is:
[0019] Compared with the prior art, it can be installed on one side of the manipulator. The outer star wheel to be detected can be automatically installed on the outer star wheel mounting seat by the manipulator, and then automatic detection can be carried out. It is suitable for automated continuous detection, and the use effect is good. Brief Description of the Drawings:
[0020] Figure 1 It is a partial structural schematic diagram of the present invention;
[0021] Figure 2 is a partial cross-sectional view of the present invention at a different angle;
[0022] Figure 3 is a schematic diagram of the local structure at the detection ring body of the present invention. Specific implementation manner:
[0023] In an embodiment, as shown in Figures 1 to 3 a device for automatically detecting the milling groove position of an outer star wheel, which includes a fixed bottom plate 10. The fixed bottom plate 10 is fixed at a manipulator on one side. The manipulator can adopt an existing industrial manipulator or directly adopt a six-axis robot, which is a conventional component and will not be elaborated here.
[0024] In the middle of the top surface of the fixed bottom plate 10, an outer star wheel mounting seat 20 is fixed. In the middle of the top surface of the outer star wheel mounting seat 20, an upper convex portion 21 is formed, which is matched with the inner cavity inside the bottom of the outer star wheel 100. The outer star wheel 100 to be detected is placed on the top surface of the outer star wheel mounting seat 20, and the upper convex portion 21 is inserted into the inner cavity of the outer star wheel 100 and is matched with the inner cavity;
[0025] On the top surface of the fixed bottom plate 10 behind the outer star wheel mounting seat 20, a fixing mechanism 30 is fixed. The bottom plate 311 of the pressing seat 31 of the fixing mechanism 30 presses against the top surface of the outer star wheel 100. In the middle of the top surface of the outer star wheel 100, a rod body 101 extending upward is formed. On the left and right side walls at the top end of the rod body 101, key grooves 102 formed by milling are formed;
[0026] On the top surface of the fixed bottom plate 10, an upper support frame 40 is fixed. In the middle of the top surface of the top plate of the upper support frame 40, a lifting oil cylinder 41 is fixed. The bottom end of the push rod of the lifting oil cylinder 41 extends out of the bottom surface of the top plate of the upper support frame 40 and is fixed with a lifting plate 42. A lower connecting frame 43 is fixed to the bottom surface of the lifting plate 42. A detection ring body 50 is fixed to the bottom of the lower connecting frame 43. Detection blocks 51 are fixed on the left and right inner side walls of the detection ring body 50, and the detection blocks 51 correspond to the corresponding key grooves 102 below.
[0027] The lower parts of the opposite wall surfaces of the two detection blocks 51 are arc-shaped wall surfaces, which are matched with the bottom inner wall surfaces of the corresponding key grooves 102.
[0028] Furthermore, the lower connecting frame 43 includes an upper fixing plate 431 which is fixed to the middle of the bottom surface of the lifting plate 42. Vertical support rods 432 are fixed to the bottom surfaces of the left and right sides of the upper fixing plate 431. Side grooves are formed on the inner side walls of the bottoms of the two vertical support rods 432. The left and right parts of the detection ring body 50 are inserted into the corresponding side grooves, and their corresponding outer side walls are closely attached to the inner side walls of the corresponding side grooves and are fixedly connected to the corresponding vertical support rods 432 by bolts.
[0029] A plurality of vertical guide rods 1 are fixed to the top surface of the lifting plate 42, and the vertical guide rods 1 are inserted into corresponding vertical through holes on the top plate of the upper support frame 40.
[0030] Furthermore, the upper support frame 40 includes a top plate. Vertical support legs are fixed to the front and rear parts of the left and right parts of the bottom surface of the top plate, and the bottom ends of the vertical support legs are fixed to the top surface of the fixed bottom plate 10.
[0031] Furthermore, the fixing mechanism 30 includes a lower fixing frame 32 fixed to the top surface of the fixed bottom plate 10. A pressing oil cylinder 33 is fixed to the bottom surface of the top plate of the lower fixing frame 32. The top end of the push rod of the pressing oil cylinder 33 extends out of the top surface of the top plate of the lower fixing frame 32 and is fixed with a lifting seat 34. A vertical plate is fixed to the front top surface of the bottom plate of the lifting seat 34. A telescopic oil cylinder 35 is fixed to the rear wall surface of the vertical plate. The front end of the push rod of the telescopic oil cylinder 35 extends out of the front wall surface of the vertical plate and is fixed with a pressing seat 31.
[0032] A plurality of lower guide rods 2 are fixed to the bottom surface of the bottom plate of the lifting seat 34, and the lower guide rods 2 are inserted into corresponding guide through holes on the top plate of the lower fixing frame 32.
[0033] Furthermore, the pressing seat 31 includes a bottom plate 311. A rear fixing plate 312 extending upward is fixed to the rear wall surface of the bottom plate 311. The front end of the push rod of the telescopic oil cylinder 35 is fixed to the rear wall surface of the rear fixing plate 312. A groove 313 extending backward is formed in the middle of the front wall surface of the bottom plate 311. The rod body 101 of the outer planet gear 100 is inserted into the groove 313, and its outer side wall is close to the inner side wall of the groove 313. A rear guide rod 3 is fixed to the rear wall surface of the rear fixing plate 312, and the rear guide rod 3 is inserted into a guide through hole extending forward and backward formed on the vertical plate of the lifting seat 34.
[0034] Furthermore, a proximity switch 4 is fixed to the middle of the upper part of the rear fixing plate 312. The sensing end of the proximity switch 4 extends out of the front wall surface of the rear fixing plate 312 and corresponds to the rear wall surface of the top of the rod body 101 of the outer planet gear 100;
[0035] A rear convex part 52 is fixed or formed in the middle of the rear wall surface of the detection ring body 50, and it corresponds to the sensing end of the proximity switch 4.
[0036] The oil cylinders in this embodiment are all connected to the corresponding control valves of the hydraulic system through connecting pipes, and through the operation of the hydraulic system, actions are realized. The electrical components and proximity switches 4 in the hydraulic system are all electrically connected to the control host through electrical connection lines, and are controlled by the control host to operate. This is a conventional control method and structure, which will not be elaborated here.
[0037] When this embodiment is in use, all the outer star wheels can be conveyed to one side of the manipulator by a conveyor (the conveying mechanism can be some turntable-type conveying mechanisms, and it can be moved to the manipulator through the grasping holes of the turntable. The feeding end of the turntable-type conveying mechanism can be conveyed by a previous chain plate or other conveying mechanisms, which is a conventional structure and will not be elaborated here). The outer star wheel 100 to be detected is placed on the outer star wheel mounting seat 20 by the manipulator (six-axis robot), so that the upper convex part 21 is inserted into the inner cavity of the outer star wheel 100 and matches with the inner cavity (since the outer side wall of the upper convex part 21 is formed with convex parts corresponding to the raceways of the inner cavity of the outer star wheel 100, therefore, when it is placed, it can be ensured that when the outer star wheel 100 is placed, the left and right two detections of the top plate of the rod body 101 face the left and the right, ensuring correct placement. Since it is a conventional structure, the raceway and the convex part are not shown in the drawings). Then, driven by the push rod of the telescopic oil cylinder 35, the bottom plate 311 of the pressing seat 31 is located above the top surface of the outer star wheel 100, and the rod body 101 of the outer star wheel 100 is inserted into the groove 313. Then, the push rod of the pressing oil cylinder 33 retracts, so that the bottom surface of the bottom plate 311 of the pressing seat 31 presses against the top surface of the outer star wheel 100 to fix it. Then, driven by the push rod of the lifting oil cylinder 41, the upper part of the rod body 101 is located in the detection ring body 50, and the detection block 51 is inserted into the corresponding keyway 102 below. At the same time, when the sensing end of the proximity switch 4 senses the rear convex part 52, it means that the processing position of the keyway 102 of the outer star wheel 100 at this time is accurate and meets the requirements;
[0038] Then, all components return to their original positions, and the manipulator (six-axis robot) takes out the outer star wheel 100 and places it into the qualified products. When detecting, when the detection block 51 is not inserted into the corresponding keyway 102, it means that the position of the keyway 102 is inaccurate. At this time, the sensing end of the proximity switch 4 cannot sense the rear convex part 52. Generally, the proximity switch 4 does not sense the rear convex part 52 within about 5 seconds after the push rod of the lifting oil cylinder 41 is pushed, indicating that it cannot be installed in place. At this time, the control host controls the corresponding hydraulic system to operate, all components return to their original positions, and the manipulator (six-axis robot) takes out the outer star wheel 100 and places it into the unqualified products. This embodiment is installed beside the corresponding manipulator (six-axis robot), and continuous automatic detection can be realized. Its detection effect is good and the efficiency is high, greatly improving the detection effect and reducing the manual labor intensity.
[0039] Finally, it should be noted that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and there can be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall be considered to fall within the protection scope of the present invention.
Claims
1. An apparatus for automatically detecting the position of a milling groove on an alien wheel, comprising a fixed bottom plate (10), characterized in that: In the middle of the top surface of the fixed bottom plate (10), an outer planet wheel mounting seat (20) is fixed. In the middle of the top surface of the outer planet wheel mounting seat (20), an upper convex portion (21) is formed, which is matched with the inner cavity inside the bottom of the outer planet wheel (100). The outer planet wheel (100) to be detected is placed on the top surface of the outer planet wheel mounting seat (20), and the upper convex portion (21) is inserted into the inner cavity of the outer planet wheel (100) and is matched with the inner cavity. On the top surface of the fixed bottom plate (10) behind the outer planet wheel mounting seat (20), a fixing mechanism (30) is fixed. The bottom plate (311) of the pressing seat (31) of the fixing mechanism (30) is pressed against the top surface of the outer planet wheel (100). In the middle of the top surface of the outer planet wheel (100), a rod body (101) extending upward is formed. On the left and right side walls at the top end of the rod body (101), key grooves (102) formed by milling are formed. On the top surface of the fixed bottom plate (10), an upper support frame (40) is fixed. In the middle of the top surface of the top plate of the upper support frame (40), a lifting oil cylinder (41) is fixed. The bottom end of the push rod of the lifting oil cylinder (41) extends out of the bottom surface of the top plate of the upper support frame (40) and is fixed with a lifting plate (42). On the bottom surface of the lifting plate (42), a lower connecting frame (43) is fixed. At the bottom of the lower connecting frame (43), a detection ring body (50) is fixed. On the left and right inner side walls of the detection ring body (50), detection blocks (51) are fixed, and the detection blocks (51) correspond to the corresponding key grooves (102) below.
2. The device for automatically detecting the milling groove position of an alien gear according to claim 1, wherein: The lower parts of the opposite wall surfaces of the two detection blocks (51) are arc-shaped wall surfaces, which are matched with the bottom inner wall surfaces of the corresponding key grooves (102).
3. The device for automatically detecting the milling groove position of the outer star wheel according to claim 1, wherein: The lower connecting frame (43) includes an upper fixing plate (431). The upper fixing plate (431) is fixed in the middle of the bottom surface of the lifting plate (42). On the bottom surfaces of the left and right sides of the upper fixing plate (431), vertical support rods (432) are fixed. On the inner side walls at the bottoms of the two vertical support rods (432), side grooves are formed. The left and right parts of the detection ring body (50) are inserted into the corresponding side grooves, and their corresponding outer side walls are closely attached to the inner side walls of the corresponding side grooves and are fixedly connected to the corresponding vertical support rods (432) through bolts.
4. An apparatus for automatically detecting the milling groove position of an outer star wheel according to claim 1, characterized in that: On the top surface of the lifting plate (42), a plurality of vertical guide rods (1) are fixed, and the vertical guide rods (1) are inserted into the corresponding vertical through holes on the top plate of the upper support frame (40).
5. The device for automatically detecting the milling groove position of an alien gear according to claim 1, characterized in that: The upper support frame (40) includes a top plate. At the front and rear parts of the left and right parts of the bottom surface of the top plate, vertical support legs are fixed, and the bottom ends of the vertical support legs are fixed on the top surface of the fixed bottom plate (10).
6. The device for automatically detecting the milling groove position of the outer star wheel according to claim 1, characterized in that: The fixing mechanism (30) includes a lower fixing frame (32) fixed to the top surface of the fixing base plate (10). A pressing oil cylinder (33) is fixed to the bottom surface of the top plate of the lower fixing frame (32). The top end of the push rod of the pressing oil cylinder (33) extends out of the top surface of the top plate of the lower fixing frame (32) and is fixed with a lifting seat (34). A vertical plate is fixed to the front top surface of the bottom plate of the lifting seat (34). A telescopic oil cylinder (35) is fixed to the rear wall surface of the vertical plate. The front end of the push rod of the telescopic oil cylinder (35) extends out of the front wall surface of the vertical plate and is fixed with a pressing seat (31).
7. The device for automatically detecting the milling groove position of an alien gear according to claim 6, wherein: A plurality of lower guide rods (2) are fixed to the bottom surface of the bottom plate of the lifting seat (34). The lower guide rods (2) are inserted into corresponding guide through holes on the top plate of the lower fixing frame (32).
8. The device for automatically detecting the milling groove position of the outer star wheel according to claim 6, characterized in that: The pressing seat (31) includes a bottom plate (311). A rear fixing plate (312) extending upward is fixed to the rear wall surface of the bottom plate (311). The front end of the push rod of the telescopic oil cylinder (35) is fixed to the rear wall surface of the rear fixing plate (312). A groove (313) extending backward is formed in the middle of the front wall surface of the bottom plate (311). The rod body (101) of the outer star wheel (100) is inserted into the groove (313), and its outer side wall is close to the inner side wall of the groove (313). A rear guide rod (3) is fixed to the rear wall surface of the rear fixing plate (312). The rear guide rod (3) is inserted into a guide through hole extending forward and backward formed on the vertical plate of the lifting seat (34).
9. The device for automatically detecting the milling groove position of the outer star wheel according to claim 7, characterized in that: A proximity switch (4) is fixed to the middle of the upper part of the rear fixing plate (312). The sensing end of the proximity switch (4) extends out of the front wall surface of the rear fixing plate (312) and corresponds to the rear wall surface of the top of the rod body (101) of the outer star wheel (100). A rear protrusion (52) is fixed or formed in the middle of the rear wall surface of the detection ring body (50), which corresponds to the sensing end of the proximity switch (4).