Ejection mechanism

Abstract

The utility model discloses an ejection mechanism which comprises a mounting base, a workbench and ejection rods, the mounting base can be close to or away from a hub to be treated, the workbench is rotationally connected with the mounting base, one end of each ejection rod is mounted on the workbench, the multiple ejection rods are arranged in the circumferential direction of the workbench, and the multiple ejection rods are arranged in the circumferential direction of the workbench. One end of each ejector rod extends towards a hub to be treated, the other end of each ejector rod extends towards the hub to be treated, the ends of the multiple ejector rods sequentially correspond to bolt holes of the hub to be treated, all plugs in all the bolt holes of the hub to be treated can be ejected out at a time through the ejector mechanism, the risk that the plugs are not pulled out is avoided, and the machining efficiency of the hub to be treated is improved. The labor intensity of manual plug pulling of workers is relieved, and the working efficiency is high.

Description

Technical Field

[0001] The present application is used in the field of wheel hub processing technology, and in particular relates to an ejection mechanism. Background Art

[0002] When painting the wheel hub, it is required that there should be no paint on the bolt holes of the wheel hub. Therefore, it is necessary to use plugs to plug the bolt holes before painting the wheel hub. After the wheel hub is painted and baked, there is a small amount of paint adhesion between the plug and the wheel hub, which will cause difficulty in removing the plug. For example, if there are 5 plugs on each wheel hub, 40,000 to 50,000 plugs need to be manually removed every day, which is time-consuming and laborious. In addition, since the products whose plugs are missed will affect the automatic steel sleeve machine in the subsequent production process, it is necessary to increase the process of manual secondary inspection, and the production efficiency is low. Utility Model Content

[0003] The purpose of the present application is to solve at least one of the technical problems existing in the prior art and to provide an ejection mechanism that can quickly remove the plug on the wheel hub product.

[0004] The technical solution adopted by this application to solve its technical problem is:

[0005] An ejection mechanism comprises a mounting seat, a workbench and an ejection rod, wherein the mounting seat can be close to or away from a wheel hub to be processed, the workbench is rotatably connected to the mounting seat, one end of the ejection rod is mounted on the workbench, a plurality of the ejection rods are arranged along the circumference of the workbench, the other end of the ejection rod extends toward the wheel hub to be processed, and the ends of the plurality of ejection rods correspond to the bolt holes of the wheel hub to be processed in sequence.

[0006] Preferably, it comprises a frame, the mounting seat is provided with a cylinder, and the output end of the cylinder is fixedly connected to the frame.

[0007] Preferably, a guide rod is provided between the frame and the mounting seat, a through hole is provided on the mounting seat, one end of the guide rod is fixedly connected to the frame, and the other end of the guide rod passes through the through hole.

[0008] Preferably, a slide groove is provided on the workbench, the cross section of the workbench is circular, a sliding block cooperating with the slide groove is provided at the end of the ejection rod, and the slide groove is arranged along the radial direction of the workbench.

[0009] Preferably, a turntable is rotatably connected to the workbench, the turntable is coaxially arranged with the workbench, a through slot for passing the guide rod is provided on the turntable, the through slot is arc-shaped, and a plurality of the through slots are divergently arranged with the rotation center of the turntable as the center of the circle.

[0010] Preferably, a gear ring is provided on the outer periphery of the turntable, a second worm gear meshing with the gear ring is provided on the workbench, and a second servo motor for driving the second worm gear to rotate is provided on the workbench.

[0011] Preferably, a visual recognition device for identifying the positions of the bolt holes of the wheel hub to be processed is provided on the frame, and the visual recognition device and the workbench are respectively located at the upper and lower sides of the wheel hub to be processed.

[0012] Preferably, rollers are rotatably connected to the frame, and a plurality of the rollers are sequentially arranged along the feeding direction of the wheel hub to be processed, and the plurality of the rollers are arranged away from the workbench.

[0013] Preferably, a supporting component is provided between the mounting seat and the workbench, one end of the supporting component is fixedly connected to the workbench, and the other end is provided with a gear, the mounting seat is provided with a first worm gear meshing with the gear, and the mounting seat is provided with a first servo motor for driving the first worm gear to rotate.

[0014] Preferably, a shell is provided on the mounting seat, the first worm and the gear are both located in the shell, and two ends of the first worm are rotatably connected to the shell.

[0015] One of the above technical solutions has at least one of the following advantages or beneficial effects: when the ejection mechanism is in use, the bottom surface or the top surface of the wheel hub to be processed is facing the workbench, and by rotating the workbench, each ejection rod on the workbench corresponds to each bolt hole of the wheel hub to be processed, and then the mounting seat drives the ejection rod to approach the wheel hub to be processed, and the ejection rod is aligned with the bolt hole and moves forward until the plug in the bolt hole is ejected. After the plug is ejected, the mounting seat drives the ejection rod away from the wheel hub to be processed, so as to facilitate the processing of the next wheel hub to be processed. The ejection mechanism can eject all the plugs in all the bolt holes of the wheel hub to be processed at one time, and there is no risk of missing the plugs, which reduces the labor intensity of personnel manually pulling out the plugs and has high work efficiency.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a front view of an embodiment of the present application;

[0019] Figure 2 is a three-dimensional diagram of an embodiment of the present application;

[0020] Figure 3 A three-dimensional diagram of another embodiment of the present application;

[0021] Figure 4 A longitudinal cross-sectional view of another embodiment of the present application;

[0022] Figure 5 yes Figure 1 Cross-sectional view at AA in the middle. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0024] In the present application, if there is a description of directions (up, down, left, right, front and back), it is only for the convenience of describing the technical solution of the present application, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0025] In this application, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of this application, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In this application, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected, detachably connected, or integrally formed; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

[0027] in, Figure 1 The reference direction coordinate system of the embodiment of the present application is given. Figure 1 The embodiment of the present application is described with reference to the direction shown.

[0028] The embodiment of the present application provides an ejection mechanism, see Figure 1 , Figure 2 , Figure 3 and, Figure 4 and Figure 5 , comprises a mounting seat 100, a workbench 200 and an ejector rod 300, the mounting seat 100 can be close to or away from the wheel hub 400 to be processed, the workbench 200 is rotatably connected to the mounting seat 100, one end of the ejector rod 300 is mounted on the workbench 200, a plurality of ejector rods 300 are arranged along the circumference of the workbench 200, the other end of the ejector rod 300 extends toward the wheel hub 400 to be processed, the ends of the plurality of ejector rods 300 correspond to the bolt holes 410 of the wheel hub 400 to be processed in sequence, when the ejector mechanism is in use, the bottom surface or the top surface of the wheel hub 400 to be processed faces the workbench 200, and each ejector on the workbench 200 is ejected by rotating the workbench 200. The rods 300 correspond to each bolt hole 410 of the wheel hub 400 to be processed, and then the mounting seat 100 drives the ejection rod 300 to approach the wheel hub 400 to be processed, and the ejection rod 300 is aligned with the bolt hole 410 and moves forward until the plug in the bolt hole 410 is ejected. After the plug is ejected, the mounting seat 100 drives the ejection rod 300 away from the wheel hub 400 to be processed, so as to facilitate the processing of the next wheel hub 400 to be processed. The ejection mechanism can eject all the plugs in all the bolt holes 410 of the wheel hub 400 to be processed at one time, without the risk of missing the plugs, reducing the labor intensity of manually pulling out the plugs, and having high work efficiency.

[0029] As a preferred embodiment of the present application, the ejection mechanism also includes a frame 500, and a cylinder 110 is provided on the mounting seat 100. The output end of the cylinder 110 is fixedly connected to the frame 500 to push the mounting seat 100 to move up and down. The cylinder 110 can generate a linear thrust or a pulling force, and convert the compressed air or liquid into a linear power output, which is used to drive the mounting seat 100 to move up and down; the structure of the cylinder 110 is relatively simple, and it is composed of a piston, a cylinder barrel and a seal, which makes the cylinder easy to maintain and operate, and has high reliability and life. The operating parameters of the cylinder can be adjusted by adjusting the input pressure, flow and control valve, so as to control the height of the mounting seat 100 to rise and fall.

[0030] Preferably, a guide rod 510 is provided between the frame 500 and the mounting seat 100, and a through hole is provided on the mounting seat 100. One end of the guide rod 510 is fixedly connected to the frame 500, and the other end of the guide rod 510 passes through the through hole. The guide rod 510 is arranged along the height direction. The guide rod 510 can ensure that the mounting seat 100 is vertically lifted and lowered along the height direction, so as to facilitate the ejection rod 300 to eject the plug in the bolt hole 410. The guide rod has high rigidity and stability, can provide high motion accuracy and repeatability, can accurately guide and constrain the moving parts, and ensure that they move along a predetermined path; a special lubrication method is usually used on the guide rod to reduce the friction between the moving parts, so that the guide rod can maintain a low energy loss during the movement process, and prolong the service life of the guide rod and the moving parts; the guide rod is usually designed to withstand a large load. They can support heavy equipment or parts and keep them running stably.

[0031] In some embodiments, a slide groove 210 is provided on the workbench 200, the cross-section of the workbench 200 is circular, and a slider 310 cooperating with the slide groove 210 is provided at the end of the ejector rod 300. The slide groove 210 is arranged along the radial direction of the workbench 200, so that the pitch circle radius of the ejector rod 300 is consistent with the pitch circle radius of the bolt hole 410 (i.e., the PCD of the wheel hub), so that the ejection device can be suitable for different models of wheel hubs. After switching between different models of wheel hub products, the position of the slider 310 in the slide groove 210 can be adjusted to achieve the adjustment of the pitch circle radius of the ejector rod 300 to achieve adaptation to the bolt hole positions of different models of wheel hub products.

[0032] As a preferred embodiment of the present application, a turntable 600 is rotatably connected to the workbench 200, and the turntable 600 is coaxially arranged with the workbench 200. A through groove 610 for passing the guide rod 510 is provided on the turntable 600. The through groove 610 is arc-shaped, and multiple through grooves 610 are divergently arranged with the rotation center of the turntable 600 as the center of the circle, so that when the turntable 600 is passed, the guide rod 510 can be driven to move through the through groove 610, and the pitch circle radius of the ejector rod 300 can be automatically adjusted by rotating the turntable 600, so that the ejector rod 300 can achieve the effect of automatically adapting to the bolt hole position of the wheel hub product.

[0033] Preferably, a gear ring 620 is provided on the outer periphery of the turntable 600, a second worm 220 meshing with the gear ring 620 is provided on the workbench 200, and a second servo motor for driving the second worm 220 to rotate is provided on the workbench 200. The second worm 220 is precisely meshed with the gear ring 620 to drive the turntable 600 to rotate, so that the ejector rod 300 and the bolt hole 410 correspond to each other.

[0034] As a preferred embodiment of the present application, a visual recognition device 520 for identifying the position of the bolt hole 410 of the wheel hub 400 to be processed is provided on the frame 500. The visual recognition device 520 and the workbench 200 are respectively located on the upper and lower sides of the wheel hub 400 to be processed. Preferably, the visual recognition device 520 is located above the wheel hub 400 to be processed, and the workbench 200 is located below the wheel hub 400 to be processed. The visual recognition device 520 is used to retrieve the angle of the bolt hole 410, and the ejector rod 300 is aligned with the plug in the bolt hole 410 for ejection. Specifically, the visual recognition device 520 can provide highly accurate image recognition and analysis results, and can perform image processing and analysis at an extremely fast speed, and can provide timely feedback in real-time applications to retrieve the angle of the bolt hole 410 and align the ejector rod 300 with the bolt hole 410 through system control.

[0035] In some embodiments, a roller 530 is rotatably connected to the frame 500, and multiple rollers 530 are arranged in sequence along the feeding direction of the wheel hub 400 to be processed. The multiple rollers 530 are arranged away from the workbench 200. The multiple rollers 530 can move the wheel hub 400 to be processed to directly above the workbench 200, which is convenient for the subsequent operation of ejecting the plug.

[0036] Specifically, the operating steps of the ejection mechanism are:

[0037] 1. After the wheel hub 400 to be processed enters the ejection mechanism through logistics, the centering cylinder push rods on both sides of the roller 530 are clamped to fix the wheel hub 400 to be processed;

[0038] 2. The visual recognition device 520 identifies the wheel hub 400 to be processed and retrieves the PCD information of the wheel hub 400 to be processed (the PCD of each wheel hub product is different, so the PCD of the product is );

[0039] 3. The visual recognition device 520 simultaneously recognizes the bolt hole angle of the wheel hub 400 to be processed when it is clamped;

[0040] 4. The second servo motor controls the second worm 220 to drive the turntable 600 to rotate, so that the pitch circle radius of the ejector rod 300 is consistent with the PCD of the wheel hub 400 to be processed;

[0041] 5. Combined with the angle information of the bolt hole 410 in the second step, the first servo motor 130 is synchronized to control the first worm 120 to drive the pillar to rotate, so that the ejector rod 300 is aligned with the angle of the bolt hole 410;

[0042] 6. The cylinder 110 is lifted up, driving the mounting base 100, the workbench 200 and the ejector rod 300 to move upward as a whole to eject the plugs in the five bolt holes 410 at one time;

[0043] 7. The cylinder descends, the first servo motor and the second servo motor return to zero, and the wheel hub product flows out to the lower station.

[0044] In some embodiments, a support component 230 is provided between the mounting base 100 and the workbench 200, one end of the support component 230 is fixedly connected to the workbench 200, and the other end is provided with a gear 231, the mounting base 100 is provided with a first worm 120 meshing with the gear 231, and the mounting base 100 is provided with a first servo motor 130 for driving the first worm 120 to rotate. Specifically, the support component 230 is a pillar, the first servo motor 130 drives the first worm 120 to rotate, the gear 231 rotates, and drives the pillar to rotate, so that the workbench 200 drives the ejector rod 300 to rotate to correspond to the bolt hole 410, and large torque can be transmitted through the worm and gear transmission. Due to the large bevel angle of the worm, each pair of gear teeth can only contact one tooth groove at the same time, which effectively reduces the load on the gear and improves the torque transmission capacity of the transmission; the worm and gear transmission achieves different speed ratios by adjusting the number of helical threads of the worm and the number of teeth of the gear; this transmission method can stably maintain the required speed ratio and is not easily affected by external factors. The meshing of the worm and the gear can achieve smooth transmission, because the contact area of ​​the gears is large during the transmission process, the friction force is evenly distributed, and the vibration and noise are reduced; the worm and gear transmission has good self-locking performance, that is, when the transmission device stops, the output shaft will not rotate automatically, which helps to improve the safety of the transmission system; the worm and gear transmission has a high efficiency, which can effectively reduce energy loss and improve transmission efficiency. For equipment that needs to operate for a long time or requires high-load transmission, it can save energy, reduce wear and heat generation.

[0045] Preferably, a shell 140 is provided on the mounting base 100, the first worm 120 and the gear 231 are both located in the shell 140, and both ends of the first worm 120 are rotatably connected to the shell 140, so as to fix the first worm 120 and ensure the structural stability of the ejection mechanism.

[0046] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. An ejection mechanism, Features: It includes a mounting seat, a workbench and an ejector rod, the mounting seat can be close to or away from the wheel hub to be processed, the workbench is rotatably connected to the mounting seat, one end of the ejector rod is installed on the workbench, a plurality of the ejector rods are arranged along the circumference of the workbench, the other end of the ejector rod extends toward the wheel hub to be processed, and the ends of the plurality of ejector rods correspond to the bolt holes of the wheel hub to be processed in sequence.

2. The ejection mechanism according to claim 1, Features: It comprises a frame, a cylinder is arranged on the mounting seat, and an output end of the cylinder is fixedly connected to the frame.

3. The ejection mechanism according to claim 2, Features: A guide rod is arranged between the frame and the mounting seat, a through hole is arranged on the mounting seat, one end of the guide rod is fixedly connected to the frame, and the other end of the guide rod passes through the through hole.

4. The ejection mechanism according to claim 3, Features: The workbench is provided with a slide groove, the cross section of the workbench is circular, the end of the ejector rod is provided with a sliding block matched with the slide groove, and the slide groove is arranged along the radial direction of the workbench.

5. The ejection mechanism according to claim 4, Features: A turntable is rotatably connected to the workbench, the turntable is coaxially arranged with the workbench, a through slot for passing the guide rod is provided on the turntable, the through slot is in an arc shape, and a plurality of through slots are divergently arranged with the rotation center of the turntable as the center of the circle.

6. The ejection mechanism according to claim 5, Features: A gear ring is arranged on the outer periphery of the rotating disk, a second worm gear meshing with the gear ring is arranged on the working table, and a second servo motor for driving the second worm gear to rotate is arranged on the working table.

7. The ejection mechanism according to claim 2, Features: The frame is provided with a visual recognition device for identifying the positions of the bolt holes of the wheel hub to be processed, and the visual recognition device and the workbench are respectively located at the upper and lower sides of the wheel hub to be processed.

8. The ejection mechanism according to claim 2, Features: The frame is rotatably connected with rollers, and a plurality of the rollers are sequentially arranged along the feeding direction of the wheel hub to be processed, and the plurality of the rollers are arranged away from the workbench.

9. The ejection mechanism according to claim 1, Features: A supporting component is provided between the mounting seat and the workbench, one end of the supporting component is fixedly connected to the workbench, and the other end is provided with a gear. A first worm gear meshing with the gear is provided on the mounting seat, and a first servo motor for driving the first worm gear to rotate is provided on the mounting seat.

10. The ejection mechanism according to claim 9, Features: A housing is provided on the mounting seat, the first worm and the gear are both located in the housing, and two ends of the first worm are rotatably connected to the housing.

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