Novel concentricity visual inspection machine

The automatic detection using a CCD concentricity detection device and photoelectric sensors solves the problems of low efficiency and poor accuracy in manual detection of female connector concentricity, achieving efficient and accurate concentricity detection and meeting quality standards.

CN223691723UActive Publication Date: 2025-12-19DONGGUAN DIANZHEN MACHINERY CO LTD
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Patent Information

Application Number
CN202520197069.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-12-19
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

In the existing technology, the concentricity detection of female connectors mainly relies on manual visual inspection, which results in low production yield, low efficiency and poor accuracy, making it difficult to meet the TS16949 standard.

Method used

Using a CCD concentricity detection device and photoelectric sensor, the female connector is photographed twice by a ring light source and a circular light source. Combined with an industrial camera and a lead screw module, the concentricity is automatically determined. Automatic positioning and clamping are achieved through a FAKRA connector positioning device and a cylinder system, replacing manual operation.

Benefits of technology

It enables efficient and accurate concentricity detection of female connectors, improves production efficiency and yield, and meets the quality requirements of TS16949 standard.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel concentricity visual inspection machine which comprises an outer cover, and an FAKRA connector positioning device, a CCD concentricity detection device, an electric control device and an FAKRA operation screen device are arranged in the outer cover. The FAKRA connector positioning device comprises a positioning vertical plate, an L-shaped product positioning plate is installed on one side of the positioning vertical plate, a first up-down air cylinder installed on the positioning vertical plate is arranged above the L-shaped product positioning plate, and the output end of the first up-down air cylinder is connected with a pressing block. A second up-down air cylinder installed on the L-shaped product positioning plate is arranged at the bottom of one side of the positioning vertical plate, the output end of the second up-down air cylinder is connected with a positioning block, and the pressing block is matched with the positioning block. According to the utility model, CCD detection and machine vision are provided with two light sources, the wire rod is photographed twice so as to judge the concentricity, information is stored, and the photoelectric sensor senses the positioning mode that the upper and lower cylinders push the positioning block and press the terminal, so that excellent accuracy is achieved without excessive manual operation.
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Description

TECHNICAL FIELD

[0001] The utility model relates to connector detection technical field, concretely is a new type of concentricity visual inspection machine. BACKGROUND

[0002] Fakra generally adopts coaxial cable, single wire single core, and the fakra wire harness is also called low-voltage wire, and the wire in the fakra wire harness is commonly used in specifications such as nominal cross-sectional area 0.5, 0.75, 1.0 and 1.5 square millimeters, which is different from ordinary household wire. Ordinary household wire is copper single-core wire, which has certain hardness. And the automobile wire is copper multi-core soft wire, and some soft wires are as thin as hair, and several or even dozens of soft copper wires are wrapped in a plastic insulation tube (polyvinyl chloride), which is soft and not easy to break. In order to facilitate connection, the connection between wire harness and wire harness, and the connection between wire harness and electrical components adopts a connector or a wire ear, the connector is made of plastic, and has a plug and a socket, the wire harness is connected by the connector, and the connection between the wire harness and the electrical components uses the connector or the wire ear. We use the female connector and the male connector to conveniently realize the quick connection of the coaxial cable, the FAKRA connector is used for vehicle connector, involves life safety problem, and it is difficult to sell for small-scale manufacturers, and the stamping, injection, assembly and test processes all meet the TS16949 specification, and it is difficult for small factories to implement the related requirements.

[0003] In order to ensure that the female connector can be connected with the male connector, the quality of the female connector must be checked. One of the main tasks of the inspection is to detect the concentricity of the outer conductor (or called outer terminal) and the inner conductor (or called center terminal) of the female connector. At present, many factories can only judge the concentricity by manual visual inspection, which has low production yield and low efficiency, and poor accuracy. Long-time manual operation is prone to misjudgment, leading to the inflow of defective products, causing a large number of defective products. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a new type of concentricity visual inspection machine to solve the problems in the above background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a new type of concentricity visual inspection machine, comprising an outer cover, a FAKRA connector positioning device, a CCD concentricity detection device, an electric control device and a FAKRA operation screen device are arranged in the outer cover.

[0006] The FAKRA connector positioning device comprises a positioning vertical plate, one side of the positioning vertical plate is provided with an L-shaped product positioning plate, an upper and lower cylinder one installed on the positioning vertical plate is arranged above the L-shaped product positioning plate, the output end of the upper and lower cylinder one is connected with a pressing block, the bottom of one side of the positioning vertical plate is provided with an upper and lower cylinder two installed on the L-shaped product positioning plate, the output end of the upper and lower cylinder two is connected with a positioning block, and the pressing block is matched with the positioning block.

[0007] The CCD concentricity detection device comprises a bottom plate, a light source adjustable base is installed on the top of the bottom plate, an annular light source support and a circular light source support are installed on the top of the light source adjustable base, an annular light source is installed on the annular light source support, and a circular light source is installed on the circular light source support, a lead screw module is installed on the top of the bottom plate, an industrial camera is movably installed on the lead screw module, a camera lens is installed on the industrial camera, and the camera lens is arranged in a position corresponding to the circular light source.

[0008] Preferably, one side of the positioning block is provided with a photoelectric sensor installed on the positioning vertical plate.

[0009] Preferably, circular foot pads are installed at the bottom of the bottom plate.

[0010] Preferably, the FAKRA operation screen device comprises a display screen, a start button and a close button installed on the outer cover.

[0011] Preferably, a fan and a fuse socket are installed on the back of the outer cover.

[0012] Preferably, a baffle is installed on the front of the outer cover.

[0013] Preferably, the FAKRA connector positioning device and the CCD concentricity detection device are installed on the bottom plate through screws.

[0014] Compared with the prior art, the FAKRA connector positioning device and the CCD concentricity detection device have the following beneficial effects:

[0015] The CCD detection is adopted, the machine vision is provided with two light sources (an annular light source and a circular light source), the wire rod is photographed twice, the concentricity is judged, the information is stored, the positioning mode of the photoelectric sensor sensing the positioning block and the pressing terminal pushed by the upper and lower cylinders is adopted, the excellent accuracy is obtained without too much manual operation, the traditional visual inspection mode is replaced, and the product defect rate can be efficiently detected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure schematic view of the utility model;

[0017] Figure 2 It is a structure schematic view of the FAKRA connector positioning device of the utility model;

[0018] It is a structure schematic view of the FAKRA connector positioning device of the utility model;Figure 3 It is the structure schematic view of the CCD concentricity detection device of the utility model;

[0019] Figure 4 It is the structure schematic view of the utility model back structure;

[0020] Figure 5 It is the structure schematic view of the FAKRA operation screen device of the utility model;

[0021] Figure 6 It is the baffle installation structure schematic view of the utility model.

[0022] In the drawing: 1, FAKRA connector positioning device;2, CCD concentricity detection device;3, electric control device;4, FAKRA operation screen device;5, cover;6, fan;7, fuse socket;8, baffle;11, L-shaped product positioning plate;12, upper and lower cylinder one;13, positioning vertical plate;14, positioning block;15, upper and lower cylinder two;16, photoelectric sensor;21, bottom plate;22, circular foot pad;23, screw rod module;24, industrial camera;25, camera lens;26, circular light source;27, annular light source;28, annular light source support;29, circular light source support;210, light source adjustable base;41, display screen;42, start button;43, close button. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-6 The utility model provides a technical scheme: a novel concentricity visual inspection machine, including cover 5, cover 5 is provided with FAKRA connector positioning device 1, CCD concentricity detection device 2, electric control device 3 and FAKRA operation screen device 4 in it;

[0025] FAKRA connector positioning device 1 includes positioning vertical plate 13, one side of positioning vertical plate 13 is provided with L-shaped product positioning plate 11, the top of L-shaped product positioning plate 11 is provided with upper and lower cylinder one 12 installed on positioning vertical plate 13, the output end of upper and lower cylinder one 12 is connected with pressure block, the bottom of one side of positioning vertical plate 13 is provided with upper and lower cylinder two 15 installed on L-shaped product positioning plate 11, and the output end of upper and lower cylinder two 15 is connected with positioning block 14, and pressure block is matched with positioning block 14;

[0026] The CCD concentricity detection device 2 comprises a bottom plate 21, a light source adjustable base 210 is installed on the top of the bottom plate 21, a ring-shaped light source support 28 and a circular light source support 29 are installed on the top of the light source adjustable base 210, a ring-shaped light source 27 is installed on the ring-shaped light source support 28, a circular light source 26 is installed on the circular light source support 29, a lead screw module 23 is installed on the top of the bottom plate 21, an industrial camera 24 is movably installed on the lead screw module 23, a camera lens 25 is installed on the industrial camera 24, and the camera lens 25 is arranged in correspondence with the circular light source 26.

[0027] In the utility model, the positioning block 14 is provided with the photoelectric sensor 16 installed on the positioning vertical plate 13.

[0028] In the utility model, the bottom plate 21 is provided with the circular foot pad 22 installed on the bottom of the bottom plate 21.

[0029] In the utility model, the FAKRA operation screen device 4 comprises the display screen 41, the start button 42 and the close button 43 installed on the outer cover 5.

[0030] In the utility model, the outer cover 5 is provided with the fan 6 and the fuse socket 7 installed on the back of the outer cover 5.

[0031] In the utility model, the outer cover 5 is provided with the baffle 8 installed on the front of the outer cover 5.

[0032] In the utility model, the FAKRA connector positioning device 1 and the CCD concentricity detection device 2 are installed on the bottom plate 21 through screws.

[0033] The utility model works as follows: the female connector is inserted through the baffle to the FAKRA connector positioning device by hand, the operator should insert the female connector into the positioning block completely, at this time, the photoelectric sensor senses the product, the second up-down pneumatic cylinder drives the positioning block to move down and work by the CCD concentricity detection device; the CCD concentricity detection device starts the ring-shaped light source, the lead screw module drives the industrial camera to focus on the outer circle of the female connector and take the first photo, after the first photo is taken, the ring-shaped light source is turned off and the circular light source is started, the lead screw module drives the industrial camera again to focus on the FAKRA wire harness core body and take the second photo, the concentricity is judged according to the information of the two photos, and the OK / NG result is displayed on the display screen, after the photo is taken, the second up-down pneumatic cylinder drives the positioning block to move up, the spring in the L-shaped product positioning plate drives the first up-down pneumatic cylinder to move out, the female connector is loosened, the operator can take out the product, and the process is completed.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of concentricity visual inspection machine comprising a housing (5), characterized in that: The outer cover (5) is provided with FAKRA connector positioning device (1), CCD concentricity detection device (2), electric control device (3) and FAKRA operation screen device (4). The FAKRA connector positioning device (1) comprises a positioning vertical plate (13), one side of the positioning vertical plate (13) is provided with an L-shaped product positioning plate (11), an upper and lower cylinder (12) is installed on the positioning vertical plate (13) above the L-shaped product positioning plate (11), the output end of the upper and lower cylinder (12) is connected with a pressing block, the bottom of one side of the positioning vertical plate (13) is provided with an upper and lower cylinder (15) installed on the L-shaped product positioning plate (11), and the output end of the upper and lower cylinder (15) is connected with a positioning block (14), the pressing block is matched with the positioning block (14). The CCD concentricity detection device (2) comprises a bottom plate (21), the top of the bottom plate (21) is provided with a light source adjustable base (210), the top of the light source adjustable base (210) is provided with an annular light source support (28) and a circular light source support (29), the annular light source support (28) is provided with an annular light source (27), the circular light source support (29) is provided with a circular light source (26), the top of the bottom plate (21) is provided with a lead screw module (23), the lead screw module (23) is movably provided with an industrial camera (24), the industrial camera (24) is provided with a camera lens (25), and the camera lens (25) is correspondingly arranged with the circular light source (26).

2. The new type of concentricity visual inspection machine according to claim 1, characterized in that: One side of the positioning block (14) is provided with a photoelectric sensor (16) installed on the positioning vertical plate (13).

3. The new type of concentricity visual inspection machine according to claim 1, characterized in that: The bottom of the bottom plate (21) is provided with a circular foot pad (22) at the four corners.

4. The new type of concentricity visual inspection machine according to claim 1, characterized in that: The FAKRA operation screen device (4) comprises a display screen (41), a start button (42) and a close button (43) installed on the outer cover (5).

5. The new type of concentricity visual inspection machine according to claim 1, characterized in that: The back of the outer cover (5) is provided with a fan (6) and a fuse socket (7).

6. The new type of concentricity visual inspection machine according to claim 1, characterized in that: The front of the outer cover (5) is provided with a baffle (8).

7. The new type of concentricity visual inspection machine according to claim 1, characterized in that: The FAKRA connector positioning device (1) and the CCD concentricity detection device (2) are installed on the bottom plate (21) by screws.