CN218120903U - Detection device - Google Patents

Abstract

The utility model discloses a detection device, which comprises a machine table, a conveying assembly and a detection assembly, wherein the conveying assembly and the detection assembly are arranged on the machine table, the conveying assembly comprises a tool for bearing a product to be detected, the tool is provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in an angle; the utility model discloses a detection equipment can realize automatic detection, and detection efficiency is high, and the testing result is accurate, accords with the needs of modernized production.

Description

Detection device

Technical Field

The utility model relates to a detect technical field, especially relate to a detection equipment.

Background

During the production of the mold, the relevant dimensions of the mold need to be measured to determine whether the installation and use requirements are met. However, in the existing production process, most of the dimension detection of the die is manual measurement, so that the efficiency is low, the accuracy is not high, and the requirement of modern production is difficult to meet.

Disclosure of Invention

In view of this, an efficient detection device is provided.

A detection device comprises a machine table, a conveying assembly and a detection assembly, wherein the conveying assembly and the detection assembly are arranged on the machine table, the conveying assembly comprises a tool for bearing a product to be detected, the tool is provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged at an angle; the detection assembly is arranged above the tool and comprises a camera and a confocal sensor, the camera is used for carrying out two-dimensional size detection on a product to be detected on the tool, and the confocal sensor is used for carrying out three-dimensional size detection on the product to be detected on the tool.

Compared with the prior art, the utility model discloses check out test set combines 2D and 3D technique, shoots the location through the camera to the product that awaits measuring and obtains the two-dimensional size parameter of the product that awaits measuring, carries out three-dimensional size through the confocal sensor to the product that awaits measuring and surveys, satisfies the measuring demand of 2D 3D appearance profile, face profile, local characteristic profile, position coordinate etc. of the product that awaits measuring; in addition, the tool is provided with two rotating shafts, so that the detection of the inner cavity structure, the arc-shaped surface and the like of a product to be detected is facilitated, the accuracy of a detection result is improved, the automatic detection of the die is integrally realized, the detection efficiency is high, the detection result is accurate, and the requirement of modern production is met.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the detection apparatus of the present invention.

Fig. 2 is a schematic view of a transfer assembly of the inspection apparatus shown in fig. 1.

Fig. 3 is a schematic view of the tool for inspecting the transfer module shown in fig. 2.

Fig. 4 is a plan view of the tooling shown in fig. 3.

FIG. 5 is a schematic view of a detection assembly of the detection apparatus of FIG. 1.

Fig. 6 is a schematic diagram of another embodiment of the detecting device of the present invention.

Fig. 7 is a plan view of the detecting apparatus shown in fig. 6.

Fig. 8 is a schematic view of a camera of the inspection apparatus shown in fig. 6.

FIG. 9 is a schematic diagram of a confocal sensor of the detection apparatus shown in FIG. 6.

FIG. 10 is a schematic view of a transport assembly of the inspection apparatus of FIG. 6.

FIG. 11 is a schematic view of a positioning mechanism of the inspection apparatus shown in FIG. 6.

The reference numbers indicate:

a detection device 100;

a machine table 10 and a slide rail 12;

the device comprises a conveying assembly 20, a loading platform 22, a supporting part 221, a tool 24, a base 241, a first stop 243, a second stop 245, a swinging piece 26 and a suction disc 28;

the detection assembly 30, the camera 32, the confocal sensor 34, the column 36, the first column 36a, the second column 36b, the beam 38, the first beam 38a, the second beam 38b, and the third beam 38c;

a positioning mechanism 40, a first positioning block 42, a second positioning block 44;

first axis of rotation L1, second axis of rotation L2.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. One or more embodiments of the present invention have been presented by way of example in the drawings, to enable a more accurate and thorough understanding of the disclosed technology. It should be understood, however, that the present invention may be embodied in many different forms and is not limited to the embodiments described below.

The same or similar reference numbers in the drawings of the utility model correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

The utility model provides a check out test set, mainly used mould, like the dimensional measurement of graphite jig, the curved mould of heat etc. to whether weigh and satisfy installation and operation requirement.

Fig. 1-5 show a specific embodiment of the detection apparatus of the present invention, the detection apparatus 100 includes a machine table 10, and a conveying assembly 20 and a detection assembly 30 disposed on the machine table 10, wherein the conveying assembly 20 is movably disposed on the machine table 10 for conveying products to be detected, such as molds, between various stations of the detection apparatus 100, such as a loading station, a detection station, and a discharging station; the detection assembly 30 is arranged corresponding to the detection station and comprises a camera 32 and a confocal sensor 34, wherein the camera 32 photographs and positions a product to be detected at the detection station to obtain two-dimensional coordinate parameters of the product to be detected; the confocal sensor 34 detects the three-dimensional size of the product to be measured, including the outline, the surface outline, the local characteristic outline, and the like, so as to obtain the three-dimensional size parameters of the product to be measured. The camera may be a CCD (charge coupled device) camera and the confocal sensor may be a spectral confocal sensor.

As shown in fig. 2, the conveying assembly 20 includes a loading platform 22 and a tool 24 rotatably connected to the loading platform 22, wherein the tool 24 is used for carrying and fixing a product to be tested. Frock 24 has first axis of rotation L1 and second axis of rotation L2, and first axis of rotation L1 and second axis of rotation L2 become the angle setting for the product that awaits measuring on frock 24 and the frock 24 can have two different rotation directions under the drive of rotating electrical machines etc.. According to the direction shown in the figure, the first rotating shaft L1 is a vertical shaft extending in the Z direction, the second rotating shaft L2 is a horizontal shaft extending in the Y direction, the tool 24 and the product to be detected can rotate by taking the first rotating shaft L1 as the center, and can also rotate by taking the second rotating shaft L2 as the center, the posture of the product to be detected is adjusted, and the part needing to be detected can be covered.

In a specific embodiment, the loading platform 22 is provided with two supporting portions 221, a swinging member 26 is rotatably connected between the two supporting portions 221, and the tooling 24 is rotatably connected to the swinging member 26. According to the direction shown in fig. 2, the two supporting portions 221 are spaced in the Y direction, the two ends of the swinging member 26 are connected to the two supporting portions 221 through a horizontal shaft, and the center of the tooling 24 is connected to the center of the swinging member 26 through a vertical shaft. Under the action of a driver such as a motor, the tool 24 rotates on an XY plane with the central axis thereof as a first rotating axis L1 relative to the oscillating piece 26, the angle of each rotation is preferably 90 degrees or 180 degrees, and the tool can rotate 360 degrees as a whole, so that four sides of the product to be detected can be detected; the swing member 26 and the tool 24 on the swing member 26 can swing together on the XZ plane with respect to the loading platform 22 around the second rotation axis L2 in the Y direction, and the swing angle is preferably not more than ± 15 degrees with respect to the horizontal plane. Of course, the swing angle of the swing member 26 can be set as required, and in some embodiments, the swing angle can be extended to ± 45 degrees, so as to ensure that the arc surface of the product to be detected can be sufficiently detected.

In one embodiment, the loading platform 22 is movably disposed on the machine 10 such that the tooling 24 can move between various stations of the machine 10. When the tool 24 moves to the feeding station, the tool receives a product to be detected conveyed by the feeding device; when the tool 24 moves to the detection station, the product to be detected is located below the detection assembly 30 and can be detected by the detection assembly 30; when the tool 24 moves to the blanking station, the blanking device grabs the detected products and conveys the products to different positions according to the detection result in a classified manner. The feeding station, the detection station and the blanking station can be staggered in the X direction and the Y direction to facilitate the arrangement of other elements. Accordingly, the loading platform 22 can move along the X direction and/or the Y direction on the machine 10, and the positions of the tool 24 and the product to be measured on the XY plane are adjusted.

As shown in fig. 3 to 4, the tooling 24 includes a base 241, and a first stopper 243 and a second stopper 245 disposed on the base 241, where the first stopper 243 and the second stopper 245 jointly enclose an accommodating space for accommodating a product to be tested on the base 241.

In the illustrated embodiment, the first stoppers 243 are fixedly connected to the base 241 and located at two adjacent sides of the base 241; the second stopper 245 is slidably connected to the base 241 and located at two adjacent sides of the base 241. In this way, the first stopper 243 and the second stopper 245 on the opposite sides of the base 241 can move relatively to change the length and/or width of the accommodating space. Before the product to be tested is placed in the accommodating space, the size of the accommodating space can be adjusted to be slightly larger than the product to be tested, so that the operation of the feeding device is facilitated; after the product to be tested is placed in the accommodating space, the second stopper 245 moves towards the product to be tested until the product to be tested abuts against the product to be tested, so as to clamp and fix the product to be tested.

In the illustrated embodiment, the fixture 24 fixes the product to be tested on the fixture 24 by clamping the side surface of the product to be tested by the first stop 243 and the second stop 245 of the fixture 24. In the subsequent detection process, the first stop 243 and the second stop 245 can shield the side surface of the product to be detected to a certain extent, and are more suitable for the product to be detected with no need of detecting the side surface characteristics, such as a graphite mold. In some embodiments, the first stopper 243 may also be movably disposed on the base 241, and the size of the accommodating space is changed by the movement of the first stopper 243 and/or the second stopper 245, so as to clamp the product to be tested or adapt to the product to be tested with different sizes, so that the utility model discloses the versatility of the detection apparatus 100 is good.

As shown in fig. 5, the cameras 32 and the confocal sensor 34 are arranged side by side and above the detection station, so that two-dimensional detection and three-dimensional detection of the product to be detected can be performed simultaneously, and the detection process is accelerated.

The camera 32 photographs the surface of the product to be detected at the detection station to obtain the coordinate parameters of the product to be detected, and performs product positioning and two-dimensional size detection. When the product to be detected is placed on the tool 24 by the manipulator of the feeding device, the placing direction of the product to be detected may generate a certain deviation, and the coordinate parameters of the product to be detected are obtained by the camera 32 to judge whether the placing direction of the product to be detected is accurate, so that the accuracy of the detection result is ensured. When the placing direction of the product to be detected is found to be inaccurate through detection of the camera 32, the detection device 100 sends out a prompt, such as sending out a warning sound, warning light, and the like, to prompt a worker to move the product to be detected away, or starts a manipulator of the feeding device, and the like to move the product out from the feeding direction, so that the process is saved.

The confocal sensor 34 detects the three-dimensional size of the surface, inner cavity, etc. of the product to be measured at the detection station. The confocal sensor 34 is preferably a non-contact white light confocal sensor, and utilizes the physical phenomenon of aberration of a chromatic aberration lens, white light emitted by a light source focuses light with different wavelengths at different heights through a dispersion confocal objective lens, monochromatic light received by a detector corresponds to light reflected by the surface of an object with different heights, and the three-dimensional shape of a product to be detected, including a shape profile, a surface profile, a local characteristic profile and the like, can be detected through X and Y transverse scanning. For the mold, the structure of the inner cavity determines the structure of the formed product, and the structure of the inner cavity can be accurately detected by the confocal sensor 34.

In the detection of the confocal sensor 34 to the product to be detected, the tool 24 can drive the product to be detected to rotate by a certain angle as required, when the tool 24 drives the product to be detected to rotate 360 degrees by taking the vertical first rotating shaft L1 as the center, the four corners of the product to be detected can be sequentially rotated to the position right below the confocal sensor 34, the detection range of the confocal sensor 34 can cover the whole product to be detected, and the tool is particularly suitable for the product to be detected with larger size. In addition, the tool 24 can also drive the product to be detected to swing around the horizontal second rotating shaft L2, so that the product to be detected can swing to incline to a certain angle relative to the horizontal plane, which is beneficial to the detection of the confocal sensor 34 on the inner cavity structure, the arc-shaped surface and the like of the product to be detected, and the accuracy of the detection result is improved.

Preferably, the camera 32 and the confocal sensor 34 are slidably connected to the column 36, and are driven by a driver, such as a linear motor, to slide up and down along the column 36 to adjust the distance between the camera 32 and the surface of the product to be measured, so that the camera 32 can image the surface of the product to be measured at different heights, and the confocal sensor 34 can detect the size of the product to be measured at different heights. In addition, the camera 32 and confocal sensor 34 can be adapted to various different sizes of products to be measured by height adjustment. Of course, the camera 32 and confocal sensor 34 may also be vertically stationary for a particular size of product under test.

In the illustrated embodiment, the camera 32 and the confocal sensor 34 are connected to the same column 36, the column 36 is fixedly mounted on a beam 38, the beam 38 spans across the conveying assembly 20, and the camera 32 and the confocal sensor 34 are suspended above the detection station and slide up and down synchronously, so that coordinates of the two can be kept consistent, and an accumulated error caused by conversion of a coordinate system in a motion process is avoided. In some embodiments, the camera 32 and the confocal sensor 34 can also be slidably connected to the beam 38, and can slide along the beam 38 in the X direction to adjust the position in the X direction, in which case the loading platform 22 of the transfer assembly only needs to move in the Y direction.

The detection device 100 of the embodiment combines 2D and 3D technologies, wherein the camera 32 performs two-dimensional imaging to perform photographing positioning and two-dimensional size detection on a product to be detected; the confocal sensor 34 acquires three-dimensional point cloud data of a product to be measured, the tool 24 rotates to enable the confocal sensor 34 to acquire data at different angles, three-dimensional size data of the product to be measured is acquired through rotary splicing of the three-dimensional point cloud measured at different angles, and measuring requirements of the product to be measured on 2D/3D appearance profile, surface profile, local feature profile, position coordinates and the like are met. Qualified product of testing result is transported to next process by unloader, and unqualified product of testing result is transported to recovery area or waste material district by unloader, and whole detection flow is full automatization, and is high-efficient and accurate, accords with the production demand of modernization.

Fig. 6-11 show another embodiment of the detecting apparatus of the present invention, the detecting apparatus 100 includes a machine table 10, a conveying assembly 20 and a detecting assembly 30, the detecting assembly 30 includes a camera 32 and a confocal sensor 34, wherein the camera 32 takes a picture of the product to be detected at the detecting station and locates and detects the two-dimensional size, and the confocal sensor 34 detects the three-dimensional size of the product to be detected. Different from the previous embodiment, in the present embodiment, a first detection station and a second detection station are arranged on the conveying path of the conveying assembly 20, the first detection station and the second detection station are spaced at a certain distance in the Y direction, the first detection station is closer to the feeding station, and the second detection station is closer to the discharging station; the camera 32 is disposed corresponding to a first inspection station, and the confocal sensor 34 is disposed corresponding to a second inspection station.

As shown in fig. 8, the camera 32 is slidably connected to the first vertical post 36a, and can slide up and down along the first vertical post 36a to adjust the distance between the camera and the surface of the product to be measured. The first post 36a is slidably connected to the first beam 38a, and the first beam 38a extends along the X direction, so that the camera 32 can slide along the first beam 38a to adjust the position in the X direction. As shown in fig. 9, the confocal sensor 34 is slidably connected to the second vertical column 36b, and can slide up and down along the second vertical column 36b to adjust the distance between the confocal sensor and the surface of the product to be measured. The second upright 36b is slidably connected to the second beam 38b, and the second beam 38b extends along the X direction, so that the confocal sensor 34 can slide along the second beam 38b to adjust the position in the X direction.

In the detection process, the conveying assembly 20 firstly conveys the product to be detected to a first detection station, and the camera 32 acquires the coordinate parameters of the product to be detected to judge whether the placing direction of the product to be detected is accurate; then, the products to be detected with inaccurate placing direction are removed, the products to be detected with accurate placing direction are conveyed to a second detection station, and the confocal sensor 34 detects the three-dimensional size of the products to be detected.

In this embodiment, as shown in fig. 7 and 10, the two conveying assemblies 20 are arranged side by side to form a double-station arrangement, so that two products to be detected can be detected simultaneously, and the detection efficiency is effectively improved. Each transfer assembly 20 includes a loading platform 22 and a tooling 24 rotatably connected to the loading platform 22. The machine 10 forms a slide rail 12 corresponding to each of the conveying assemblies 20, and the slide rail 12 extends along the Y direction; the loading platform 22 moves along the slide rail 12, so that the tool 24 can move to the feeding station, the first detection station, the second detection station and the discharging station in sequence. The tool 24 has a first rotating shaft L1 in the vertical direction and a second rotating shaft L2 in the horizontal direction, so that the product to be measured can have two different rotating directions to adjust the posture of the product.

In this embodiment, the loading platform 22 is also provided with two supporting portions 221, the two supporting portions 221 are spaced in the X direction, two ends of the swinging member 26 are connected to the two supporting portions 221 through an axle rod in the X direction, and the center of the tooling 24 is connected to the center of the swinging member 26 through a vertical axle rod. Under the action of drivers such as a motor, the tool 24 rotates on an XY plane for 360 degrees by taking the central axis thereof as a first rotating axis L1, so that four side surfaces of a product to be detected can be detected; the swing member 26 and the tool 24 on the swing member 26 swing on the YZ plane around the second rotation axis L2 in the X direction at an angle not exceeding ± 45 degrees, preferably not exceeding ± 15 degrees, with respect to the horizontal plane.

In this embodiment, frock 24 is including sucking disc 28, and sucking disc 28 adsorbs the fixed product that awaits measuring that bears on frock 24 through the negative pressure, avoids sheltering from the side of the product that awaits measuring for each side of the product that awaits measuring also can be detected, is applicable to the mould that the side characteristic also need detect, like hot bent mould etc.. Preferably, the machine station 10 is provided with a positioning mechanism 40 at a side end of each slide rail 12 close to the loading station, for initially positioning the product to be measured on the tool 24. The positioning mechanism 40 includes a first positioning block 42 and a second positioning block 44, wherein the first positioning block 42 is slidable along the X direction, and the second positioning block 44 is slidable along the Y direction.

When the tool 24 is located at the feeding station, the first positioning block 42 and the second positioning block 44 are respectively located at two adjacent sides of the tool 24. When a product to be tested is placed on the fixture 24, the first positioning block 42 slides towards the product to be tested along the X direction, and the second positioning block 44 slides towards the product to be tested along the Y direction, so as to push the product to be tested to move on the fixture 24 along the X and Y directions. When the product to be detected is pushed to the preset position of the tool 24 by the positioning mechanism 40, the product to be detected is fixed by adsorption through the sucker, and the position of the product to be detected on the tool 24 does not change in the subsequent moving or detecting process. Moreover, the product to be detected is separated from the positioning mechanism 40 in the detection process, and the positioning mechanism 40 cannot shield the product to be detected.

Preferably, a third beam 38c is erected on the machine platform 10, and the positioning mechanism 40 is installed on the third beam 38c and is matched with the tool 24 in height. The first beam 38a, the second beam 38b, and the third beam 38c are disposed in parallel at intervals on the machine 10, and span two conveying assemblies 20, the camera 32 can slide along the first beam 38a to a position above a first detection station of any one of the conveying assemblies 20, and the confocal sensor 34 can slide along the second beam 38b to a position above a second detection station of any one of the conveying assemblies 20, so that a single detection element can complete multi-station detection.

Preferably, there is a timing difference between the two conveying assemblies 20, and when the product to be tested on one conveying assembly 20 is conveyed to the first testing station, the product to be tested on the other conveying assembly 20 is conveyed to the second testing station. So, on same time node, camera 32 is shot the location and is surveyed with two-dimensional size to the product that awaits measuring on one of them conveying assembly 20, and confocal sensor 34 carries out three-dimensional size to the product that awaits measuring on another conveying assembly 20 and surveys, and the product that awaits measuring on two conveying assemblies 20 can carry out the detection of corresponding project in turn, effectively accelerates the detection flow, improves detection efficiency.

The detection device 100 of the embodiment also combines 2D and 3D technologies, performs two-dimensional size detection by photographing and positioning with the camera 32, and performs three-dimensional size detection with the confocal sensor 34, thereby meeting the measurement requirements of 2D/3D profile, surface profile, local feature profile, position coordinates and the like of the product to be measured. In the detection process, the tool 24 and the product to be detected only need to move in the Y direction, the camera 32 and the confocal sensor 34 move in the X direction and cooperate with each other to complete the alignment on the XY plane, so that the product to be detected can move to the lower part of the camera 32 and the confocal sensor 34 for detection, the time required by movement can be reduced, the detection process is further accelerated, and the detection efficiency is improved.

It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The detection equipment comprises a machine table, and a conveying assembly and a detection assembly which are arranged on the machine table, and is characterized in that the conveying assembly comprises a tool for bearing a product to be detected, the tool is provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged at an angle; the detection assembly is arranged above the tool and comprises a camera and a confocal sensor, the camera is used for carrying out two-dimensional size detection on a product to be detected on the tool, and the confocal sensor is used for carrying out three-dimensional size detection on the product to be detected on the tool.

2. The inspection apparatus of claim 1, wherein the first axis of rotation of the tool is a vertical axis and the second axis of rotation is a horizontal axis.

3. The inspection apparatus of claim 2 wherein said transport assembly further comprises a loading platform and a swing member, said tooling being rotatably connected to said swing member and rotating in an XY plane relative to said swing member about said first axis of rotation; the swinging piece is rotatably connected to the loading platform and swings within +/-15 degrees relative to the horizontal plane by taking the second rotating shaft as a center.

4. The inspection apparatus according to claim 3, wherein the loading platform includes two support portions spaced apart from each other, the swinging member is disposed between the two support portions and both ends of the swinging member are rotatably connected to the two support portions, respectively; the center of frock with the center of swinging member is rotationally connected.

5. The inspection apparatus of claim 3, further comprising a column, wherein said camera and confocal sensor are movably coupled to said column and can slide up and down synchronously with respect to said column.

6. The detection apparatus according to claim 5, further comprising a cross beam, wherein the column is fixedly connected to the cross beam, and the loading platform is movably disposed on the machine platform and is movable in both X and Y directions relative to the machine platform; or the upright post is movably connected to the cross beam and can slide along the X direction relative to the cross beam; the loading platform is movably arranged on the machine table and can slide along the Y direction relative to the machine table.

7. The detection apparatus of claim 3, further comprising a first beam, a second beam, a first column, and a second column, the first beam and the second beam being spaced apart in parallel; the first upright post is movably connected to the first cross beam and can slide along the X direction relative to the first cross beam, and the camera is movably connected to the first upright post and can slide up and down relative to the first upright post; the second upright post is movably connected to the second cross beam and can slide along the X direction relative to the second cross beam, and the confocal sensor is movably connected to the second upright post and can slide up and down relative to the second upright post.

8. The detection apparatus according to any one of claims 1 to 7, wherein the fixture includes a base, and a first stopper and a second stopper which are disposed on the base, the first stopper is fixedly connected to the base and located on two adjacent sides of the base, the second stopper is slidably connected to the base and located on the other two sides of the base, and the first stopper and the second stopper are used for clamping the side of the product to be detected and fixing the product to be detected on the fixture.

9. The detection apparatus according to any one of claims 1 to 7, further comprising a positioning mechanism disposed on the machine platform, wherein the positioning mechanism includes a first positioning block and a second positioning block, the first positioning block is slidable along an X direction, the second positioning block is slidable along a Y direction, and when the tool is located at the loading station, the first positioning block and the second positioning block are respectively located at two adjacent sides of the tool.

10. The detection device according to claim 9, wherein the tool comprises a suction cup, and the suction cup is used for fixing a product to be detected on the tool in an adsorption manner.

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