Spherical rolling element appearance inspection apparatus

Abstract

The utility model provides a kind of spherical rolling body appearance detection equipment, including control device, feeding device, conveying development device, detection device and screening device, wherein, conveying development device includes conveying component and development component, conveying component includes porous turntable and supporting plate;Development component includes friction disc, friction disc is fixed on the rotating shaft of hollow rotating platform, hollow rotating platform is fixedly installed on hollow support plate, the slider of one side of support plate is connected guide rail, the slider of other side of support plate is connected other guide rail, support plate is connected servo module in the middle of connecting two sliders by two connecting pieces.The spherical rolling body appearance detection equipment of the utility model adopts servo module to accurately control the displacement and speed of linear motion of rotating friction disc, and then cooperates with the rotation of friction disc itself, to improve the quality of spreading on the surface of each spherical rolling body.

Description

Technical Field

[0001] This utility model relates to the field of automated inspection equipment based on machine vision, and in particular to an inspection device for the appearance of a spherical rolling body. Background Technology

[0002] Spherical rolling elements, such as steel balls, ceramic balls, ball bearings, spherical rollers, or cigarette bouncy beads, require rigorous surface inspection in various industries. In automated inspection processes for spherical rolling elements, due to their unique structure, it is necessary to inspect the complete outer circumference of the surface.

[0003] Incomplete visual inspection severely impacts the quality of automated inspection of spherical rolling elements. Currently, with technological advancements, the methods for defect detection in small-sized spherical rolling elements are largely similar. For example, Chinese utility model patent number 202222189408.0 discloses a spherical rolling element visual inspection device. The power transmission mechanism for the reciprocating linear motion of the second turntable in this device is a crank-slider mechanism. The displacement and speed of this reciprocating linear motion are difficult to determine precisely, failing to meet the high-quality inspection requirements for spherical rolling elements. Utility Model Content

[0004] This invention addresses the aforementioned technical problems by providing a spherical rolling body appearance inspection device. It utilizes a unfolding assembly equipped with a servo module to precisely control the displacement and speed of the linear motion of its rotating friction disc, accurately acquiring the complete unfolded surface of the spherical rolling body, thus ensuring improved inspection quality.

[0005] According to a first aspect of the present invention, a spherical rolling body appearance inspection device is provided, comprising a control device, a feeding device, a conveying and unfolding device, an inspection device, and a screening device.

[0006] The conveying and unfolding device includes a conveying component and an unfolding component.

[0007] The conveying assembly includes a perforated turntable and a first pallet. The perforated turntable is fixed on a first rotating shaft of a first hollow rotating platform. The first rotating shaft is connected to a first motor. The first pallet is positioned below the perforated turntable via a support column.

[0008] The unfolding assembly includes a friction disk, which is fixed on a second rotating shaft of a second hollow rotating platform. The second rotating shaft is connected to a second motor. The second hollow rotating platform is fixedly mounted on a hollow support plate. One side of the support plate is connected to a first slider of a first guide rail, and the other side of the support plate is connected to a second slider of a second guide rail. The support plate is connected to a servo module through a first connector and a second connector in the middle connecting the first slider and the second slider.

[0009] The porous turntable partially overlaps with the friction disk, with the friction disk located below the porous turntable and the detection device located above the overlap.

[0010] With this structure, the friction disk of the unfolding component is driven to move linearly back and forth through the servo module and the connector. This allows for precise control of the displacement and speed of the linear motion of the rotating friction disk, which, in conjunction with the rotation of the friction disk itself, improves the quality of unfolding the surfaces of each spherical rolling element.

[0011] According to a second aspect of the present invention, a spherical rolling body appearance inspection device as described in the first aspect is provided, wherein a multi-hole turntable is provided with four rings of openings around its perimeter.

[0012] According to a third aspect of the present invention, a spherical rolling body appearance inspection device as described in the first aspect is provided, wherein a first hollow rotating platform is fitted with a rotating connecting block, and the rotating connecting block is fixedly connected to the porous turntable.

[0013] This structure, with the perforated turntable fixedly connected to the hollow rotating platform via a rotating connecting block, further improves the stability of the motor-driven perforated turntable rotation.

[0014] According to a fourth aspect of the present invention, a spherical rolling body appearance inspection device as described in the first aspect is provided, wherein at least one gasket is provided between the first support plate and the support column.

[0015] This structure allows for adjustment of the distance between the first support plate and the perforated turntable by adjusting the thickness or number of shims. This eliminates machining and installation errors and also makes it suitable for testing spherical rolling elements of different sizes.

[0016] According to a fifth aspect of the present invention, a spherical rolling body appearance inspection device as in the first aspect is provided, wherein a feeding device is located above the conveying and unfolding device, the feeding device includes a feeding port and a limiting frame, and at least one scraper is provided in the limiting frame.

[0017] With this structure, multiple spherical rolling bodies are fed into the feeding area in batches through the inlet. Then, multiple scrapers in the limiting frame are used to precisely guide each spherical rolling body into its respective conveying hole and scrape off some of the stacked material in the hole.

[0018] According to a sixth aspect of the present invention, a spherical rolling body appearance inspection device as described in the fifth aspect is provided, wherein a second support plate is provided on the periphery of the friction disc, and the second support plate is fixed to a support plate by a connecting rod.

[0019] According to a seventh aspect of the present invention, a spherical rolling body appearance inspection device as described in the first aspect is provided, the screening device comprising a qualified product collection component and a non-qualified product collection hopper; the qualified product collection component includes an air pipe mounting block, the air pipe mounting block having at least one opening, each opening being connected to an air pipe; the first tray having an opening, the non-qualified product collection hopper being located below the opening.

[0020] The beneficial effects of this invention are as follows: during the conveying and unfolding process of the spherical rolling body, the displacement and speed of the linear motion of the friction disk are precisely controlled by the servo module. In conjunction with the rotation of the friction disk itself, it moves precisely along a predetermined trajectory, so that the unfolding direction and speed of the spherical rolling body surface are controllable, which can provide more compatibility and improve the detection quality.

[0021] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. Attached Figure Description

[0022] The accompanying drawings, which form part of the specification, are provided to further understand the present invention and illustrate preferred embodiments of the present invention. Together with the text description, they serve to explain the principles of the present invention, wherein the same reference numerals are used to denote the same elements throughout.

[0023] In the attached diagram:

[0024] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0025] Figure 2 This is a partial enlarged view of a preferred embodiment of the present invention;

[0026] Figure 3 yes Figure 2 Top view;

[0027] Figure 4 yes Figure 2 A sectional view;

[0028] Figure 5This is a schematic diagram of the structure of the qualified product collection component in a preferred embodiment of the present invention. Detailed Implementation

[0029] Referring to the accompanying drawings, the foregoing and other features of this utility model will become apparent from the following description. Specific embodiments of this utility model are specifically disclosed in the description and drawings, illustrating some implementations in which the principles of this utility model can be adopted. It should be understood that this utility model is not limited to the described embodiments.

[0030] This invention provides a device for inspecting the appearance of spherical rolling bodies. Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention. Figure 2 This is a partial enlarged view of a preferred embodiment of the present invention. Figure 3 yes Figure 2 Top view, Figure 4 yes Figure 2A cross-sectional view; as shown in the figure, the spherical rolling body appearance inspection device of this utility model includes a control device (not shown in the figure), a feeding device 2, a conveying and unfolding device 3, an inspection device 4, and a screening device 5. The control device is electrically connected to each device to automatically control the operation of each device, and the control device has inspection software for judging based on the surface images of each spherical rolling body acquired by the camera 41 of the inspection device 4. The conveying and unfolding device 3 includes a conveying assembly 31 and an unfolding assembly 32. The conveying assembly 31 includes a perforated turntable 311 and a support plate 312. The perforated turntable 311 is fixed on the rotating shaft of the hollow rotating platform 313, which is connected to a motor 314. The support plate 312 is positioned below the perforated turntable 311 via a support column 315. The unfolding assembly 32 includes a friction disc 321, which is fixed on the rotating shaft of the hollow rotating platform 322, which is connected to a motor 323. The hollow rotating platform 322 is fixedly mounted on a hollow support plate 324. One side of the support plate 324 is connected to a slider of a guide rail 325, and the other side of the support plate 324 is connected to a slider of a guide rail 326. The support plate 324 is connected to a servo module 327 in the middle of the connection between the two guide rail sliders via a first connector and a second connector. The perforated turntable 311 partially overlaps with the friction disc 321, with the friction disc 321 located below the perforated turntable 311. The camera 41 of the detection device 4 is located above the overlap. Thus, the control device controls the motor 314 to drive the perforated turntable 311 to rotate clockwise. The spherical rolling bodies located in each opening roll on the support plate 312 to the detection device 4, reaching the friction surface of the friction disc 321. The motor 323 drives the friction disc 321 to rotate, causing the spherical rolling bodies to roll within the openings through friction. Simultaneously, the servo module 327 drives the friction disc 321 to perform a reciprocating linear motion with controllable speed and displacement (the lead of the servo module 327 is fixed; the displacement of the module slider is controlled by controlling the number of rotations and the direction of rotation of the servo motor). The two work together to allow the spherical rolling bodies to roll along a controllable spiral, ensuring the surface of the spherical rolling bodies is fully expanded for detection. Then, based on the judgment results, they are further transported to the screening device 5 for sorting.

[0031] According to a preferred embodiment of the present invention, the multi-hole turntable 311 is provided with four rings of openings around its perimeter, each opening serving as a conveying hole. The openings are equally spaced, which can convey multiple spherical rolling bodies fed in batches by the feeding device 2 to the inspection device 4 for appearance inspection, effectively improving the inspection efficiency.

[0032] See Figure 3According to a preferred embodiment of this utility model, a rotating connecting block 316 is fitted onto the hollow rotating platform 313. The rotating connecting block 316 is fixedly connected to the porous turntable 311 by a plurality of fastening screws. By fixing the rotating connecting block 316 to the outer periphery of the hollow rotating platform 313, and then fixing the rotating connecting block 316 to the porous turntable 311, the rotational power is transmitted by the rotating connecting block 316, further improving the stability of the rotation of the porous turntable 311 driven by the motor 314.

[0033] Preferably, at least one shim 317 is provided between the pallet 312 and the support column 315. By adjusting the thickness or number of shims, the distance between the pallet 312 and the perforated turntable 311 can be adjusted, which can eliminate processing and installation errors on the one hand, and also make it suitable for testing spherical rolling elements of different sizes on the other hand.

[0034] According to a preferred embodiment of the present invention, the feeding device 2 is located above the conveying and unfolding device 3. The feeding device 2 includes an inlet 21 and a limiting frame 22. At least one scraper (not shown in the figure) is vertically arranged inside the limiting frame 22. Multiple spherical rolling bodies are fed in batches through the inlet 21 into the feeding area defined by the limiting frame 22. Then, the multiple scrapers vertically arranged inside the limiting frame 22 are used to accurately guide each spherical rolling body into its respective conveying hole and scrape off some of the stacked material in the hole.

[0035] According to a preferred embodiment of the present invention, a support plate 328 is provided around the friction disk 322, and the support plate 328 is fixed to the support plate 324 by four connecting rods. By providing the support plate 328 around the friction disk 322, the support plate 328, the support plate 312, and the friction disk 321 are all on the same horizontal plane, and the support plate 328 connects the gap between the support plate 312 and the friction disk 321, so that each spherical rolling element can smoothly roll from the support plate 312 to the friction surface of the friction disk 321.

[0036] According to a preferred embodiment of the present invention, the screening device 5 includes a qualified product collection assembly 51 and a non-qualified product collection hopper 52; wherein, see Figure 5 The schematic diagram of the qualified product collection component shown illustrates that the qualified product collection component 51 includes an air tube mounting block 511. The air tube mounting block 511 has at least one opening, and each opening connects to an air tube (in the example shown, one air tube 512 is marked). At the sorting point, each opening of the air tube mounting block 511 corresponds to each hole of the multi-hole turntable 311, and collection is achieved through individual air blowing, ensuring sorting accuracy. See also... Figure 2Downstream of the air pipe mounting block 511, the pallet 312 has an opening, and the defective product collection hopper 52 is located below the opening. When each spherical rolling body that is determined to be defective is rotated and transported to this position by the porous turntable 311, it falls from the opening of the pallet 312 into the defective product collection hopper 52 below for collection.

[0037] Preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and many features and advantages of these embodiments become apparent from this detailed description. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of the present invention are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents.

Claims

1. A device for inspecting the appearance of spherical rolling bodies, characterized in that, The spherical rolling body appearance inspection equipment includes a control device, a feeding device, a conveying and unfolding device, an inspection device, and a screening device. The conveying and unfolding device includes a conveying component and an unfolding component. The conveying assembly includes a perforated turntable and a first pallet. The perforated turntable is fixed on a first rotating shaft of a first hollow rotating platform. The first rotating shaft is connected to a first motor. The first pallet is positioned below the perforated turntable via a support column. The unfolding assembly includes a friction disk, which is fixed on a second rotating shaft of a second hollow rotating platform. The second rotating shaft is connected to a second motor. The second hollow rotating platform is fixedly mounted on a hollow support plate. One side of the support plate is connected to a first slider of a first guide rail, and the other side of the support plate is connected to a second slider of a second guide rail. The support plate is connected to a servo module through a first connector and a second connector in the middle connecting the first slider and the second slider. The porous turntable partially overlaps with the friction disk, with the friction disk located below the porous turntable and the detection device located above the overlap.

2. The spherical rolling body appearance inspection device according to claim 1, characterized in that, The perforated turntable has four rings of openings around its perimeter.

3. The spherical rolling body appearance inspection device according to claim 1, characterized in that, The first hollow rotating platform is fitted with a rotating connecting block, which is fixedly connected to the porous turntable.

4. The spherical rolling body appearance inspection device according to claim 1, characterized in that, At least one gasket is provided between the first support plate and the support column.

5. The spherical rolling body appearance inspection device according to claim 1, characterized in that, The feeding device is located above the conveying and unfolding device. The feeding device includes a feeding port and a limiting frame, and at least one scraper is provided in the limiting frame.

6. The spherical rolling body appearance inspection device according to claim 5, characterized in that, A second support plate is provided around the friction disc, and the second support plate is fixed to the support plate by a connecting rod.

7. The spherical rolling body appearance inspection device according to claim 1, characterized in that, The screening device includes a qualified product collection component and a non-qualified product collection hopper; the qualified product collection component includes an air pipe mounting block, the air pipe mounting block is provided with at least one opening, and each opening is connected to an air pipe respectively. The first pallet has an opening, and the defective product collection hopper is located below the opening.

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