3D visual inspection equipment

Abstract

The utility model relates to a 3D visual inspection equipment, including base, support rod, binocular 3D camera, fixture bottom plate, product positioning seat, product limit post and limit strip, the support rod is vertically fixed on one side of base, binocular 3D camera is installed on the support rod, fixture bottom plate and limit strip are detachably fixed on the base, and the product positioning seat is fixed on the base. The limiting strips are tightly attached to the adjacent transverse and longitudinal sides of the clamp bottom plate, the product positioning seat and the product limiting column are installed on the clamp bottom plate, and a product is placed in the product positioning seat during detection. According to the 3D visual inspection equipment, through the binocular 3D camera and the positioning clamp, the inspection procedures of deformation of products, neglected loading of copper bushes, mistake proofing of mixed loading of similar shapes and the like can be covered, the inspection efficiency can be improved, the productivity can be improved, the labor cost, the inspection tool manufacturing cost, the maintenance cost and the placement site can be saved, and more importantly, the inspection stability and accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to a field, and particularly relates to a 3D vision detection device. Background Art

[0002] The deformation of die-cast products is inevitable. For products that are highly prone to deformation, it is required to conduct a full quality inspection with a gauge before leaving the warehouse. According to the traditional method, the structures and principles of gauges are all the same. The number of gauges increases as the product part number increases. The packing process and the operation of the gauge both need to be completed by one person. The manufacturing cost of the gauge is high, and the labor cost of operating the gauge is also high. Content of the Utility Model

[0003] To solve the technical problems existing in the prior art, the utility model provides a 3D vision detection device.

[0004] To achieve the above object, the technical solution of the utility model is as follows:

[0005] A 3D vision detection device includes a base, a support rod, a binocular 3D camera, a fixture base plate, a product positioning seat, product limit posts and limit strips. The support rod is vertically fixed on one side of the base. The binocular 3D camera is installed on the support rod. The fixture base plate and the limit strips are detachably and fixedly installed on the base. The limit strips are installed closely against the adjacent sides of the fixture base plate horizontally and longitudinally. The product positioning seat and the product limit posts are installed on the fixture base plate. During detection, the product is placed in the product positioning seat.

[0006] As a preferred technical solution, the fixture base plate is provided with installation holes and through holes arranged in an array, and the product limit posts are installed in the through holes.

[0007] As a preferred technical solution, the limit strips are fixed on the base by screws. The limit strips are provided with perforations, and the base is provided with a number of circular holes arranged at equal intervals horizontally and longitudinally. The screws pass through the perforations and the circular holes.

[0008] As a preferred technical solution, the product positioning seat includes two coaxial cylinders. The diameter of the upper cylinder is smaller than that of the lower cylinder. The lower cylinder is provided with an annular groove, and the inner circle of the annular groove fits against the outer circumference of the upper cylinder. The product positioning seat is an integral structure.

[0009] As a preferred technical solution, the top edges of the two cylinders are both arc-shaped.

[0010] As a preferred technical solution, a screw hole is provided at the center of the bottom of the product positioning seat. The product positioning seat is fixed on the fixture base plate by bolts, and the screw hole is provided with threads matching the bolts.

[0011] As a preferred technical solution, the product limit post is a three-section structure, and a sleeve is sleeved on one section, and the size of the middle section is larger than that of the two outer sections.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) The 3D vision inspection device of the present utility model, through the binocular 3D camera and the positioning fixture, can cover the inspection processes such as product deformation, missing installation of copper sleeves, and anti-misassembly of similar-shaped mixed assemblies. The number of inspectors can be reduced from two to one. If multiple products are inspected in one photo, the inspection efficiency can be further improved.

[0014] (2) When using the 3D vision inspection device of the present utility model to inspect products, compared with the original method of using a digital display meter to measure the product deformation at multiple points, the production capacity has increased by 42 times.

[0015] (3) By using the 3D vision inspection device of the present utility model, more fixture manufacturing costs, maintenance costs, and placement sites can be saved. More importantly, the inspection stability and accuracy can be improved. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the 3D vision inspection device of the present utility model;

[0017] Figure 2 is a working principle diagram of the binocular 3D camera in the 3D vision inspection device of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the fixture bottom plate in the 3D vision inspection device of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the product positioning seat in the 3D vision inspection device of the present utility model;

[0020] Figure 5 is a schematic structural diagram of the product limit post in the 3D vision inspection device of the present utility model.

[0021] In the figure: 1. Base; 2. Support rod; 3. Binocular 3D camera; 4. Fixture bottom plate; 5. Product positioning seat; 6. Product limit post; 7. Limit strip. Detailed Embodiments

[0022] The technical solution of the present utility model will be further described below in conjunction with the detailed embodiments:

[0023] As Figure 1As shown in the figure, a 3D vision detection device includes a base 1, a support rod 2, a binocular 3D camera 3, a fixture bottom plate 4, a product positioning seat 5, product limit posts 6, and a limit strip 7. The support rod 2 is vertically fixed on one side of the base 1. The binocular 3D camera 3 is installed on the support rod. The fixture bottom plate 4 and the limit strip 7 are detachably and fixedly installed on the base 1. The limit strip 7 is installed closely adjacent to the adjacent sides of the fixture bottom plate 4 horizontally and longitudinally. The product positioning seat 5 and the product limit posts 6 are installed on the fixture bottom plate 4. During detection, the product is placed in the product positioning seat 5. The limit strip 7 is used to limit the position of the fixture bottom plate 4 to prevent the fixture bottom plate 4 from shifting during the detection process. The product positioning seat 5 and the product limit posts 6 are used for positioning when the product is placed.

[0024] As Figure 2 shown in the figure, in this embodiment, the binocular 3D camera 3 used is a 3D line scan camera of Gocator. After the product is placed on the product positioning seat 5, the binocular 3D camera 3 takes pictures to collect the three-dimensional point data of the product. Its measurement accuracy is relatively high, and it can simultaneously perform three-dimensional quality detection on multiple features of the stationary target, that is, the product. The device can perform detection such as product deformation, missing installation of copper sleeves, and anti-misassembly of similar-shaped mixed assemblies. Taking the detection of product deformation and missing installation of copper sleeves as an example, first use the binocular 3D camera 3 to detect the step difference from different horizontal planes of the product to multiple measurement points, fit the reference plane, and then select multiple area measurement points to calculate the step difference to the fitted reference plane to obtain the deformation amount; judge whether there is a copper ring by detecting the diameter of the round hole. For the current sample, there is a copper ring with a radius of 10.459 mm and no copper ring with a radius of 11.517 mm. It takes 45 ms for the product to undergo such a detection once.

[0025] As Figure 3 shown in the figure, the fixture bottom plate 4 is provided with mounting holes and through holes arranged in an array. The product limit posts 6 are installed in the through holes. The mounting holes are used to fixedly install the fixture bottom plate 4 on the base 1.

[0026] The limit strip 7 is fixed on the base 1 by screws. The limit strip 7 is provided with through holes, and the base 1 is provided with a number of round holes arranged at equal intervals horizontally and longitudinally. The screws pass through the through holes and the round holes. After the fixture bottom plate 4 is placed in the appropriate position on the base 1, the two limit strips 7 are installed on the adjacent sides of the fixture bottom plate 4 with screws to fix the position of the fixture bottom plate 4.

[0027] As Figure 4 shown in the figure, the product positioning seat 5 includes two coaxial cylinders. The diameter of the upper cylinder is smaller than that of the lower cylinder. The lower cylinder is provided with an annular groove, and the inner circle of the annular groove fits with the outer circumference of the upper cylinder. The product positioning seat 5 is an integral structure. The shape of the product positioning seat 5 is adapted to the product structure for placing the product.

[0028] The top edges of the two cylinders are both arc-shaped to make the operation safer.

[0029] A screw hole is provided at the center of the bottom of the product positioning seat 5. The product positioning seat 5 is fixed on the fixture bottom plate 4 by bolts, and the screw hole is provided with threads matching the bolts.

[0030] As Figure 5 shown, the product limit post 6 has a three-section structure. A sleeve is sleeved on one section, and the size of the middle section is larger than that of the two outer sections, which facilitates inserting the product limit post 6 into the through hole on the fixture bottom plate 4.

[0031] This embodiment is only a further explanation of the present invention, rather than a limitation to the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A 3D visual inspection device, characterized in that: It includes a base, a support rod, a binocular 3D camera, a fixture bottom plate, a product positioning seat, a product limiting column and a limiting bar. The support rod is vertically fixed on one side of the base, the binocular 3D camera is installed on the support rod, the fixture bottom plate and the limiting bar are detachably fixed on the base, the limiting bar is installed close to the adjacent two sides of the fixture bottom plate in the horizontal and vertical directions, the product positioning seat and the product limiting column are installed on the fixture bottom plate, and the product is placed in the product positioning seat during inspection.

2. The 3D visual inspection device according to claim 1, characterized in that: The fixture bottom plate is provided with mounting holes and through holes arranged in an array, and the product limiting columns are installed in the through holes.

3. The 3D visual inspection device according to claim 1, characterized in that: The limiting strip is fixed on the base by screws. The limiting strip is provided with a through hole. The base is provided with a plurality of circular holes arranged at equal intervals in the horizontal and vertical directions. The screws pass through the through holes and the circular holes.

4. The 3D visual inspection device according to claim 1, characterized in that: The product positioning seat includes two coaxially arranged cylinders, the diameter of the upper cylinder is smaller than that of the lower cylinder, an annular groove is provided on the lower cylinder, the inner circle of the annular groove fits with the outer circumference of the upper cylinder, and the product positioning seat is an integrated structure.

5. The 3D visual inspection device according to claim 4, characterized in that: The top edges of the two cylinders are both curved surfaces.

6. The 3D visual inspection device according to claim 4, characterized in that: A screw hole is provided at the center of the bottom of the product positioning seat. The product positioning seat is fixed to the fixture bottom plate by bolts, and a thread matching the bolt is provided in the screw hole.

7. The 3D visual inspection device according to claim 1, characterized in that: The product limiting column is a three-section structure, one section is provided with a sleeve, and the size of the middle section is larger than the sizes of the two outer sections.

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