CN214844906U - Full-automatic 3D check out test set based on x-ray - Google Patents

Abstract

The utility model discloses a full-automatic 3D detection device based on x-ray, which comprises an objective table device for placing a product to be detected, an x-ray transmitting device arranged below the objective table device, and an x-ray receiving device arranged above the objective table device; the x-ray receiving device comprises a rotating mechanism, an inclined swinging mechanism in driving connection with the rotating mechanism, a first lifting mechanism arranged on the inclined swinging mechanism, and an x-ray receiver in driving connection with the first lifting mechanism. The utility model discloses support three kinds of detection methods of 2D, 2.5D and 3D, the user can be according to actual conditions free choice, and the commonality is strong, and this equipment convenient operation, degree of automation are high, the detection precision is high, detection efficiency is high.

Description

Full-automatic 3D check out test set based on x-ray

Technical Field

The utility model relates to a detect technical field, especially relate to a full-automatic 3D check out test set based on x-ray.

Background

In the production process of the PCB, the items such as empty soldering, BGA bubbles, plug-in welding spots (tin penetration height), incomplete tin on plug-in holes, holes and the like are mainly detected by x-ray detection equipment, and the existing x-ray detection equipment has the following defects:

1) most of the detection methods adopt a 2D detection mode, only the detection of two-dimensional plane size can be realized, and the common bad characteristics are all three-dimensional characteristics, so that the detection result is not accurate;

2) some devices can support a 2.5D detection mode, namely, the height and the size of one side surface are detected by inclining a certain angle, but only products with poor two dimensions can be detected, and the poor products are further screened out through other functional tests, so that the operation is inconvenient;

3) other detection methods are needed to assist in detection, and detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full-automatic 3D check out test set based on x-ray, this equipment support 2D, 2.5D and three kinds of detection methods of 3D, and the user can be according to actual conditions free choice, and the commonality is strong, and this equipment convenient operation, degree of automation are high, the detection precision is high, detection efficiency is high.

In order to realize the purpose, the following technical scheme is adopted:

the full-automatic 3D detection equipment based on the x-ray comprises an object stage device for placing a product to be detected, an x-ray transmitting device arranged below the object stage device, and an x-ray receiving device arranged above the object stage device; the x-ray receiving device comprises a rotating mechanism, an inclined swinging mechanism in driving connection with the rotating mechanism, a first lifting mechanism arranged on the inclined swinging mechanism, and an x-ray receiver in driving connection with the first lifting mechanism; the rotating mechanism is used for driving the x-ray receiver to rotate, the inclined swinging mechanism is used for adjusting the inclined angle of the x-ray receiver, and the first lifting mechanism is used for driving the x-ray receiver to lift.

Further, the rotating mechanism comprises a fixed disc, a rotary disc arranged in the fixed disc, a rotating shaft arranged on the rotary disc, and a first rotating motor for driving the rotating shaft to rotate; the inclined swinging mechanism is arranged below the turntable and is in driving connection with the rotating shaft, and the first rotating motor is used for driving the rotating shaft to drive the inclined swinging mechanism to rotate.

Further, the inclined swinging mechanism comprises an arc-shaped bracket, a sliding seat and a swinging driving mechanism; the arc-shaped concave area of the arc-shaped bracket is arranged downwards, and the top of the arc-shaped bracket is in driving connection with the rotating shaft; an arc guide rail is further arranged on one side of the arc support along the arc direction of the arc support, the sliding seat is movably arranged on the arc support, and a plurality of limiting wheels arranged on the arc guide rail are further arranged on the sliding seat; the swing driving mechanism is arranged on one side of the sliding seat, the first lifting mechanism is arranged on the other side of the sliding seat, and the swing driving mechanism is used for driving the sliding seat to drive the first lifting mechanism to swing along the arc-shaped guide rail.

Further, the swing driving mechanism comprises a second rotating motor arranged on one side of the sliding seat, a speed reducer arranged on the second rotating motor, a chain wheel arranged on the speed reducer, and a chain arranged on one side of the arc-shaped support in the arc direction and connected with the chain wheel in a meshing manner.

Furthermore, the first lifting mechanism comprises a first fixed seat arranged on one side of the sliding seat, a first guide rail module and a first lead screw module which are arranged on one side of the first fixed seat along the length direction of the first fixed seat, a first lifting seat which is arranged on the first guide rail module and is in driving connection with the first lead screw module, and a third rotating motor which is arranged on the other side of the first fixed seat and is in driving connection with the first lead screw module; the x-ray receiver is arranged on the first lifting seat, and the third rotating motor is used for driving the first lifting seat to lift along the first guide rail module through the first lead screw module.

Furthermore, the object stage device comprises a second lifting mechanism, a first lifting frame in driving connection with the second lifting mechanism, a first translation mechanism arranged on the first lifting frame, a second translation mechanism arranged perpendicular to the first translation mechanism and in driving connection with the first translation mechanism, and a bearing sliding plate arranged on the second translation mechanism and used for bearing a product.

Furthermore, the second lifting mechanism comprises a second fixed seat, a second lead screw module arranged on the second fixed seat, and a fourth rotating motor in driving connection with the second lead screw module; the first lifting frame comprises a lifting sliding plate arranged on one side of the second fixed seat and in driving connection with the second screw rod module, a plurality of lifting support arms obliquely arranged on one side of the lifting sliding plate, and lifting support plates arranged on the tops of the lifting support arms; the first translation mechanism is arranged on the lifting supporting plate.

Furthermore, the x-ray transmitting device comprises a third translation mechanism, a third lifting mechanism in driving connection with the third translation mechanism, and an x-ray transmitter and a cooling fan which are arranged on the third lifting mechanism.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that:

1) the device provides three detection modes such as 2D, 2.5D and 3D, a user can freely select the detection modes according to actual conditions, and the universality is high;

2) the detection of the three-dimensional size of the product to be detected is realized, the detection result is closer to the real bad characteristic value, and the detection precision is high;

3) based on a 3D detection mode, all bad characteristics can be detected at one time without combining other detection methods, so that the detection efficiency can be improved, and the detection cost can be reduced;

4) whole equipment convenient operation can realize the automated inspection to the product, and degree of automation is high, can practice thrift the human cost.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of FIG. 1 with the frame omitted;

FIG. 3 is a perspective view of the x-ray emitting device of the present invention;

fig. 4 is a perspective view of the stage device of the present invention;

fig. 5 is a perspective view of the x-ray receiving device of the present invention;

FIG. 6 is a front view of FIG. 5;

wherein the figures identify the description:

1-a stage apparatus; 2-x-ray emitting device;

3-x-ray receiving means; 4, a frame;

11-a second lifting mechanism; 12-a first crane;

13 — a first translation mechanism; 14-a second translation mechanism;

15-bearing sliding plate; 21-a third translation mechanism;

22-a third lifting mechanism; 23-x-ray emitter;

24-a radiator fan; 31-a rotating mechanism;

32-a tilt swing mechanism; 33-a first lifting mechanism;

34-x-ray receiver; 111-second fixed seat;

112-a second screw rod module; 113 — a fourth rotating electrical machine;

121-lifting sliding plate; 122-lifting support arm;

311, fixing a disc; 312 — a turntable;

313-a rotating shaft; 314 — a first rotating electrical machine;

321-arc support; 322-sliding seat;

323-arc guide rail; 324-a spacing wheel;

325 — second rotating electrical machine.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 6, the utility model provides a full-automatic 3D detection device based on x-ray, which comprises an objective table device 1 for placing a product to be detected, an x-ray transmitting device 2 arranged below the objective table device 1, and an x-ray receiving device 3 arranged above the objective table device 1; the x-ray receiving device 3 comprises a rotating mechanism 31, an inclined swinging mechanism 32 in driving connection with the rotating mechanism 31, a first lifting mechanism 33 arranged on the inclined swinging mechanism 32, and an x-ray receiver 34 in driving connection with the first lifting mechanism 33; the rotating mechanism 31 is used for driving the x-ray receiver 34 to rotate, the inclined swinging mechanism 32 is used for adjusting the inclined angle of the x-ray receiver 34, and the first lifting mechanism 33 is used for driving the x-ray receiver 34 to lift.

The rotating mechanism 31 comprises a fixed disc 311, a rotating disc 312 installed in the fixed disc 311, a rotating shaft 313 installed on the rotating disc 312, and a first rotating motor 314 for driving the rotating shaft 313 to rotate; the inclined swinging mechanism 32 is arranged below the turntable 312 and is in driving connection with the rotating shaft 313, and the first rotating motor 314 is used for driving the rotating shaft 313 to drive the inclined swinging mechanism 32 to rotate; the inclined swinging mechanism 32 comprises an arc-shaped bracket 321, a sliding seat 322 and a swinging driving mechanism; the arc-shaped concave area of the arc-shaped support 321 is arranged downwards, and the top of the arc-shaped support 321 is in driving connection with the rotating shaft 313; an arc guide rail 323 is further arranged on one side of the arc support 321 along the arc direction, the sliding seat 322 is movably arranged on the arc support 321, and a plurality of limiting wheels 324 arranged on the arc guide rail 323 are further arranged on the sliding seat 322; the swing driving mechanism is installed on one side of the sliding seat 322, the first lifting mechanism 33 is arranged on the other side of the sliding seat 322, and the swing driving mechanism is used for driving the sliding seat 322 to drive the first lifting mechanism 33 to swing along the arc-shaped guide rail 323.

The swing driving mechanism comprises a second rotating motor 325 arranged on one side of the sliding seat 322, a speed reducer arranged on the second rotating motor 325, a chain wheel arranged on the speed reducer, and a chain arranged on one side of the arc support 321 along the arc direction and meshed with the chain wheel; the first lifting mechanism 33 comprises a first fixed seat arranged on one side of the sliding seat 322, a first guide rail module and a first lead screw module which are arranged on one side of the first fixed seat along the length direction of the first fixed seat, a first lifting seat which is arranged on the first guide rail module and is in driving connection with the first lead screw module, and a third rotating motor which is arranged on the other side of the first fixed seat and is in driving connection with the first lead screw module; the x-ray receiver 34 is mounted on the first lifting seat, and the third rotating motor is used for driving the first lifting seat to lift along the first guide rail module through the first lead screw module; the object stage device 1 comprises a second lifting mechanism 11, a first lifting frame 12 in driving connection with the second lifting mechanism 11, a first translation mechanism 13 installed on the first lifting frame 12, a second translation mechanism 14 which is arranged perpendicular to the first translation mechanism 13 and in driving connection with the first translation mechanism, and a bearing sliding plate 15 which is installed on the second translation mechanism 14 and is used for bearing products.

The second lifting mechanism 11 comprises a second fixed seat 111, a second screw rod module 112 mounted on the second fixed seat 111, and a fourth rotating motor 113 in driving connection with the second screw rod module 112; the first lifting frame 12 comprises a lifting sliding plate 121 arranged on one side of the second fixed seat 111 and in driving connection with the second screw rod module 112, a plurality of lifting support arms 122 obliquely arranged on one side of the lifting sliding plate 121, and lifting support plates arranged on the tops of the lifting support arms 122; the first translation mechanism 13 is arranged on the lifting supporting plate; the x-ray emitting device 2 comprises a third translation mechanism 21, a third lifting mechanism 22 in driving connection with the third translation mechanism 21, and an x-ray emitter 23 and a cooling fan 24 which are arranged on the third lifting mechanism 22.

The utility model discloses the theory of operation:

with reference to fig. 1 to 6, in this embodiment, the apparatus further includes a frame 4 (a lead-containing isolated x-ray housing manufactured by a special process is used to prevent the leakage of x-rays and protect production line staff), and the stage device 1, the x-ray emitting device 2, and the x-ray receiving device 3 are uniformly disposed in the frame 4; the top of the frame 4 is provided with a three-color warning lamp, and when the equipment runs abnormally, the red lamp flickers and is accompanied with an alarm sound; the front surface of the frame 4 is also provided with an observation window, a display and an operation table, so that the operation condition in the equipment can be observed conveniently and the equipment can be operated; electric cabinets are also arranged on two sides of the rack 4 and are mainly used for installing an electrical control system of equipment; the back and the top of the frame 4 are also provided with equipment maintenance ports, so that the maintenance is convenient; the device has three detection modes:

1) when the imaging surface of the x-ray receiver 34 (high-definition flat panel detector) and the plane of the bearing sliding plate 15 are always kept parallel, a 2D detection mode is adopted;

2) when the imaging surface of the x-ray receiver 34 and the plane of the bearing sliding plate 15 always keep a certain included angle, a 2.5D detection mode is adopted;

3) when the imaging surface of the x-ray receiver 34 and the plane of the bearing slide plate 15 always keep a certain included angle, and meanwhile, the x-ray receiver 34 also makes circular motion around the center of the detection area, namely, the three-dimensional CT detection mode (3D detection) is obtained.

The method comprises the steps of utilizing different penetrating abilities of x-rays to substances with different densities, converting received x-rays with different intensities into visible black and white images with different light and shade through an x-ray receiver 34, and comparing standard image templates through background software to find out the defective positions of products; during normal work, the technician can set up the relevant parameter of good yields, put the product on bearing slide 15 afterwards, press the start button, equipment can be automatic to walk the coordinate and wait to examine the position to shoot to each of product in proper order, when walking the coordinate, backstage software system can contrast the good yields parameter that sets up earlier stage and the product that is detecting, and then can detect the defective products, and mark out defective position, its relevance ratio can reach more than 99%, can realize the quick inspection paster soldering tin problem, form effective closed loop, reduce risks such as paster and soldering tin are bad.

x-ray transmitting apparatus 2: the x-ray emission device 2 is arranged in the frame 4, the third translation mechanism 21 and the third lifting mechanism 22 can both adopt a transmission mode of a screw rod and a motor, and the transmission mode is not limited, so that the x-ray emission device 23 can be driven to do translation and lifting movement, the height of the x-ray emission device 23 can be further adjusted, and the magnification ratio can be automatically adjusted; the x-ray emitter 23 adopts a high-power x-ray emission source, the light-emitting focus is smaller, the light-emitting focus is closer to the light-emitting surface, the detection precision is higher, and meanwhile, the heat-radiating fan 24 is further arranged on the x-ray emitter 23, so that the heat-radiating fan can radiate heat and cool the x-ray emitter, and the service life of the x-ray emitter is prolonged.

x-ray receiving apparatus 3: the fixed disc 311 is mounted on the inner wall of the top of the frame 4, the rotary disc 312 is mounted in the fixed disc 311, an annular groove is further formed between the rotary disc 312 and the fixed disc 311, a drag chain is further mounted in the annular groove, a containing groove is further formed in the top of the rotary disc 312, and the first rotating motor 314 is arranged in the containing groove; the first rotating motor 314 can drive the rotating shaft 313 to drive the arc-shaped support 321 to rotate, and the drag chain is used for wiring; the sliding seat 322 comprises an L-shaped connecting seat and a sliding plate, the L-shaped vertical end of the L-shaped connecting seat is arranged at one side of the arc-shaped bracket 321, and the L-shaped horizontal end of the L-shaped connecting seat is located below the arc-shaped bracket 321 and is fixedly connected with the first fixing seat of the first lifting mechanism 33; the sliding plate is arranged on one side of the first fixed seat, the upper part and the lower part of one side of the sliding plate are respectively provided with a plurality of limiting wheels 324, and the arc-shaped guide rail 323 is inserted between the upper limiting wheels 324 and the lower limiting wheels 324, so that the stability of the first fixed seat in swinging motion along the arc-shaped guide rail 323 can be ensured; through the mutual matching of the rotating mechanism 31, the inclined swinging mechanism 32 and the first lifting mechanism 33, the x-ray receiver 34 can be driven to do lifting, left-right inclining and rotating around the product, so that the product can be detected in different visual angle states, and the background software system can perform 3D reconstruction of the detected area through pictures shot in different visual angle states within a 360-degree range, so that 3D detection is realized.

Stage device 1: the first translation mechanism 13 and the second translation mechanism 14 of the objective table device 1 can both adopt a transmission mode of a motor and a lead screw, and are not limited herein, and the second lifting mechanism 11, the first translation mechanism 13 and the second translation mechanism 14 are mutually matched to drive the bearing sliding plate 15 to move in three axes (an X axis, a Y axis and a Z axis), so that different amplification factors can be switched to detect characteristics to be detected with different sizes on a product, and the detection precision is ensured.

The whole equipment is controlled by an industrial personal computer and a software system, and after the equipment is started, technicians operate the equipment to perform a series of preparation work such as preheating of an X-ray source and resetting of each movement axis; after the preparation work is finished, opening the observation window to send a standard qualified sample, ensuring that the sample does not slide along with the movement of the bearing sliding plate 15 and the position of each product placement is basically consistent; after the sample is placed, a technician can pre-compile a motion coordinate program of the objective table device 1 according to a plurality of positions to be detected of the sample, set the distance between the x-ray emitter 23 and the bearing sliding plate 15, the distance between the x-ray receiver 34 and a measured point of the sample, select a proper inclination angle of the x-ray receiver 34, set quality judgment standard parameters, take out the standard sample, put the sample into a product to be detected and start automatic operation.

In the automatic operation process, the equipment firstly finds a MARK point of a product (the point is a reference point of coordinates of all points to be detected of each product), calculates the coordinate distance of each point to be detected relative to the MARK point according to the MARK point, then the bearing sliding plate 15 sequentially moves to each point to be detected according to the coordinate distances, the x-ray emitter 23 and the x-ray receiver 34 move to the corresponding distance and inclination angle of each point to perform photographing detection while the bearing sliding plate 15 moves, each moving axis is static during each photographing, and the software calculation judgment result is performed in the moving process of each axis every time, so that the equipment is operated more efficiently; after all point location detection on the product are accomplished, if bad places appear, the system judges that the product is a defective product, and marks out bad position and relevant data on the image, otherwise is the yields, and equipment can upload every product testing result to management system so that look over according to the demand, and is simple high-efficient.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The full-automatic 3D detection equipment based on the x-ray is characterized by comprising an object stage device for placing a product to be detected, an x-ray transmitting device arranged below the object stage device and an x-ray receiving device arranged above the object stage device; the x-ray receiving device comprises a rotating mechanism, an inclined swinging mechanism in driving connection with the rotating mechanism, a first lifting mechanism arranged on the inclined swinging mechanism, and an x-ray receiver in driving connection with the first lifting mechanism; the rotating mechanism is used for driving the x-ray receiver to rotate, the inclined swinging mechanism is used for adjusting the inclined angle of the x-ray receiver, and the first lifting mechanism is used for driving the x-ray receiver to lift.

2. The x-ray based full-automatic 3D detection equipment according to claim 1, wherein the rotating mechanism comprises a fixed disc, a rotating disc arranged in the fixed disc, a rotating shaft arranged on the rotating disc, and a first rotating motor for driving the rotating shaft to rotate; the inclined swinging mechanism is arranged below the turntable and is in driving connection with the rotating shaft, and the first rotating motor is used for driving the rotating shaft to drive the inclined swinging mechanism to rotate.

3. The x-ray based fully automatic 3D detection device according to claim 2, wherein the tilt and swing mechanism comprises an arc-shaped bracket, a sliding seat and a swing direction driving mechanism; the arc-shaped concave area of the arc-shaped bracket is arranged downwards, and the top of the arc-shaped bracket is in driving connection with the rotating shaft; an arc guide rail is further arranged on one side of the arc support along the arc direction of the arc support, the sliding seat is movably arranged on the arc support, and a plurality of limiting wheels arranged on the arc guide rail are further arranged on the sliding seat; the swing driving mechanism is arranged on one side of the sliding seat, the first lifting mechanism is arranged on the other side of the sliding seat, and the swing driving mechanism is used for driving the sliding seat to drive the first lifting mechanism to swing along the arc-shaped guide rail.

4. The x-ray based full-automatic 3D detection device according to claim 3, wherein the swing driving mechanism comprises a second rotating motor installed on one side of the sliding seat, a speed reducer installed on the second rotating motor, a chain wheel installed on the speed reducer, and a chain arranged on one side of the arc-shaped support along the arc direction of the arc-shaped support and meshed with the chain wheel.

5. The x-ray based full-automatic 3D detection equipment according to claim 4, wherein the first lifting mechanism comprises a first fixed seat arranged on one side of the sliding seat, a first guide rail module and a first lead screw module which are arranged on one side of the first fixed seat along the length direction of the first fixed seat, a first lifting seat arranged on the first guide rail module and in driving connection with the first lead screw module, and a third rotating motor arranged on the other side of the first fixed seat and in driving connection with the first lead screw module; the x-ray receiver is arranged on the first lifting seat, and the third rotating motor is used for driving the first lifting seat to lift along the first guide rail module through the first lead screw module.

6. The x-ray based full-automatic 3D detection device according to claim 1, wherein the stage device comprises a second lifting mechanism, a first lifting frame in driving connection with the second lifting mechanism, a first translation mechanism installed on the first lifting frame, a second translation mechanism arranged perpendicular to and in driving connection with the first translation mechanism, and a bearing slide plate installed on the second translation mechanism and used for bearing the product.

7. The x-ray based full-automatic 3D detection equipment according to claim 6, wherein the second lifting mechanism comprises a second fixed seat, a second lead screw module arranged on the second fixed seat, and a fourth rotating motor in driving connection with the second lead screw module; the first lifting frame comprises a lifting sliding plate arranged on one side of the second fixed seat and in driving connection with the second screw rod module, a plurality of lifting support arms obliquely arranged on one side of the lifting sliding plate, and lifting support plates arranged on the tops of the lifting support arms; the first translation mechanism is arranged on the lifting supporting plate.

8. The x-ray based full-automatic 3D detection equipment according to claim 1, wherein the x-ray emitting device comprises a third translation mechanism, a third lifting mechanism in driving connection with the third translation mechanism, and an x-ray emitter and a cooling fan which are installed on the third lifting mechanism.

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