Chip appearance detection platform

Abstract

The utility model discloses a chip appearance detection platform which comprises a carrying table, a carrying plate is arranged above the carrying table, and a positioning assembly for positioning a tray is arranged on the carrying plate; a camera support is arranged on one side of the carrier plate, and a position-adjustable camera is arranged on the camera support. A moving mechanism for driving the carrying plate to move along the X axis and the Y axis is arranged on the carrying table, the moving mechanism drives the carrying plate to move to the position under the camera, and a locking mechanism for limiting the moving position of the carrying plate is arranged on the moving mechanism. Through combined use of the moving mechanism and the locking mechanism, two different working scenes are provided for the chip appearance detection platform, and the appearance detection requirements of different types of products are met; and meanwhile, compared with original manual tray moving and manual photographing, the product detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of appearance detection and relates to a chip appearance detection platform. Background Art

[0002] In the process of electronic chip manufacturing, chip surface defect detection is a crucial link. The presence of chip surface defects may cause chip performance degradation, affecting its service life and reliability. Therefore, small batch appearance inspection is carried out before large-scale production.

[0003] At present, small batch testing requires manual movement of the sample to be tested within the camera's field of view. Figure 1 As shown, there are several squares distributed in a matrix in the tray S1, and a chip is placed in each square. When inspecting the appearance of small batches, it is necessary to manually move the tray to the bottom of the camera for taking pictures, which is time-consuming, laborious and inefficient.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0005] In order to solve the problems in the background technology, the utility model provides a chip appearance inspection platform to improve the efficiency of small batch appearance inspection.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A chip appearance inspection platform includes a stage, a carrier plate is arranged above the stage, a positioning assembly for positioning a tray is arranged on the carrier plate; a camera bracket is arranged on one side of the carrier plate, a position-adjustable camera is arranged on the camera bracket; a moving mechanism for driving the carrier plate to move along the X-axis and the Y-axis is arranged on the stage, the moving mechanism drives the carrier plate to move to the bottom of the camera, and a locking mechanism for limiting the moving position of the carrier plate is arranged on the moving mechanism. The above-mentioned camera is an autofocus camera.

[0008] Furthermore, the moving mechanism includes an X-axis moving component arranged on the carrier, the X-axis moving component is provided with a Y-axis moving component, the carrier is arranged on the Y-axis moving component, and the X-axis moving component and the Y-axis moving component are both provided with locking mechanisms.

[0009] Further, the X-axis moving assembly includes two X-axis guide rails arranged on the carrier, an X-axis slider is slidably arranged on the X-axis guide rails, a connecting plate is arranged on the X-axis slider, an X-axis motor is arranged on the connecting plate, an X-axis rack distributed along the X-axis is arranged on the carrier, and an X-axis gear meshing with the X-axis rack is arranged on the driving shaft of the X-axis motor; the locking mechanism is arranged on the back side of the connecting plate, and the locking mechanism is slidably arranged on the X-axis guide rail.

[0010] Furthermore, hard limiters are provided at both ends of the X-axis guide rail.

[0011] Further, the locking mechanism includes a locking carrier plate fixed on the back of the connecting plate, and the locking carrier plate is provided with a guide column and a spring sheet, and the spring sheet and the guide column define a channel for the X-axis guide rail to pass through; the locking carrier plate is provided with an eccentric wrench, and the eccentric wrench abuts against one side of the spring sheet and manually drives one end of the spring sheet to move.

[0012] Further, the Y-axis moving assembly includes two Y-axis guide rails arranged on the back of the carrier plate, a Y-axis slider is slidably arranged on the Y-axis guide rails, the Y-axis slider is fixed on the connecting plate, the locking mechanism is arranged on the front of the connecting plate, and the locking mechanism is slidably arranged on the Y-axis guide rails; a Y-axis rack is arranged on the back of the carrier plate, a Y-axis motor is arranged on the connecting plate, and a Y-axis gear meshing with the Y-axis rack is arranged on the driving shaft of the Y-axis motor.

[0013] Furthermore, hard limiters are provided at both ends of the Y-axis guide rail.

[0014] Further, the locking mechanism includes a locking carrier plate fixed on the front side of the connecting plate, and the locking carrier plate is provided with a guide column and a spring sheet, and a channel for the Y-axis guide rail to pass through is defined between the spring sheet and the guide column; an eccentric wrench is provided on the locking carrier plate, and the eccentric wrench abuts against one side of the spring sheet and manually drives one end of the spring sheet to move.

[0015] Furthermore, the positioning assembly includes a positioning hole disposed on the carrier plate and a positioning pin disposed in the positioning hole, and the distribution position of the positioning pin includes at least one long side and one short side of the tray.

[0016] Further, the camera bracket is provided with a first adjusting member, the first adjusting member is provided with a horizontal support rod, the horizontal support rod is provided with a second adjusting member, the second adjusting member is provided with a vertical support rod, the vertical support rod is provided with a camera placement frame, and the camera is set in the camera placement frame.

[0017] The above technical solution has the following beneficial effects: through the combined use of the moving mechanism and the locking mechanism, two different working scenarios are provided for the chip appearance inspection platform to meet the appearance inspection requirements of different types of products; at the same time, compared with the original manual movement of the pallet and manual photography, the product inspection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of an existing pallet.

[0021] Figure 2 The present invention is a three-dimensional structural schematic diagram.

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the moving mechanism on the carrier provided by the utility model.

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the locking mechanism provided by the utility model.

[0024] In the figure: 1-carrier board 3-camera bracket; 4-camera; S1-tray;

[0025] 31-first adjusting member; 32-horizontal support rod; 33-second adjusting member; 34-camera placement stand;

[0026] 51-X-axis guide rail; 52-X-axis slider; 53-connection plate; 54-X-axis motor; 55-X-axis rack;

[0027] 61-Y-axis guide rail; 62-Y-axis slider; 63-Y-axis rack; 64-Y-axis motor;

[0028] 71 - locking carrier plate; 72 - guide column; 73 - spring piece; 74 - eccentric wrench; 75 - rotating shaft. DETAILED DESCRIPTION

[0029] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0030] See also Figure 1-Figure 4 As shown, a chip appearance inspection platform includes a carrier 1, a carrier plate 2 is arranged above the carrier 1, and a positioning component for positioning a tray S1 is arranged on the carrier plate 2. A camera bracket 3 is arranged on one side of the carrier plate 2, and a position-adjustable camera 4 is arranged on the camera bracket 3. A moving mechanism for driving the carrier plate to move along the X-axis and the Y-axis is arranged on the carrier 1, and the moving mechanism drives the carrier plate 2 to move to just below the camera 4, and a locking mechanism for limiting the moving position of the carrier plate is arranged on the moving mechanism.

[0031] Specifically, the camera support 3 is provided with a first adjusting member 31, which can be adjusted at the height position of the camera support 3 and is bolted to the camera support. The first adjusting member 31 is provided with a horizontal support rod 32, which can adjust the extension length, and the first adjusting member 31 is provided with a locking bolt for fixing the horizontal support rod 32. The horizontal support rod 32 is provided with a second adjusting member 33, which is fixedly arranged at the end of the horizontal support rod 32 and a vertical support rod is fixedly arranged thereon, and a camera placement frame 34 is pivotally connected to the vertical support rod and is bolted. The camera 4 is arranged in the camera placement frame 34.

[0032] Through the above design, the camera can adjust the height position, horizontal position and angle position, so that it can better adapt to the testing requirements of different products, ensuring that the tray is located directly below the camera 4, and the camera 4 can clearly capture the image of the product on the tray.

[0033] In this embodiment, the positioning assembly includes a positioning hole provided on the carrier plate 2 and a positioning pin provided in the positioning hole, and the distribution position of the positioning pin includes at least one long side and one short side of the tray S1. In this way, the two sides of the tray S1 can be against the positioning pins to achieve rapid positioning of the tray S1.

[0034] Furthermore, the camera 4 in this embodiment is an auto-focus camera capable of taking high-definition photos.

[0035] In this embodiment, the moving mechanism includes an X-axis moving assembly arranged on the carrier 1, a Y-axis moving assembly is arranged on the X-axis moving assembly, the carrier 2 is arranged on the Y-axis moving assembly, and locking mechanisms are arranged on both the X-axis moving assembly and the Y-axis moving assembly.

[0036] Specifically, the X-axis moving assembly includes two X-axis rails 51 arranged on the carrier 1, and an X-axis slider 52 is slidably arranged on the two X-axis rails 51, and a connecting plate 53 is arranged on the X-axis slider 52, and an X-axis motor 54 is arranged on the connecting plate 53, so that the X-axis motor 54 moves on the X-axis rails 51 along with the connecting plate 53. An X-axis rack 55 distributed along the X-axis is arranged on the carrier 1, and an X-axis gear meshing with the X-axis rack 55 is arranged on the driving shaft of the X-axis motor 54. The X-axis motor 54 is a servo motor, and the X-axis position of the connecting plate 53 and the carrier 2 can be adjusted by controlling the X-axis motor 54 to rotate forward or reversely through gear meshing transmission.

[0037] The Y-axis moving assembly includes two Y-axis guide rails 61 arranged on the back of the carrier plate 2, and a Y-axis slider 62 is slidably arranged on the two Y-axis guide rails 61, and the Y-axis slider 62 is fixed on the connecting plate 53. A Y-axis rack 63 is arranged on the back of the carrier plate 2, and a Y-axis motor 64 is arranged on the connecting plate 53. The driving shaft of the Y-axis motor 64 is provided with a Y-axis gear meshing with the Y-axis rack 63. The Y-axis motor 64 is a servo motor, and the Y-axis position of the carrier plate 2 can be adjusted by controlling the Y-axis motor 64 to rotate forward or reversely through gear meshing transmission.

[0038] Preferably, hard stoppers are provided at both ends of the X-axis guide rail 51. Hard stoppers are provided at both ends of the Y-axis guide rail 61. By providing hard stoppers at both ends of the X-axis guide rail 51 and the Y-axis guide rail 61, the carrier 2 is prevented from moving beyond the stroke, so that the carrier 2 is within a reasonable movement range.

[0039] The front and back sides of the connecting plate 53 are both provided with locking mechanisms, wherein the locking mechanism on the front side acts on the Y-axis guide rail 61 , and the locking mechanism on the back side acts on the X-axis guide rail 51 .

[0040] In this embodiment, the locking mechanisms on both sides of the connecting plate 53 have the same structure. Figure 4 As shown, it includes a locking carrier plate 71, on which a guide post 72 and a spring sheet 73 are arranged, wherein a channel is defined between the spring sheet 73 and the guide post 72 for the X-axis guide rail or the Y-axis guide rail to pass through; the locking carrier plate is provided with an eccentric wrench 74, which has a lever and a steering head, and the steering head has a circular profile with a rotating hole eccentrically arranged therein. A rotating shaft 75 adapted to the rotating hole is arranged on the carrier plate 71. Figure 4 As shown, one end of the spring sheet 73 is fixed to the locking carrier plate 71 by a bolt, and the other end of the spring sheet 73 is movable, and the eccentric wrench 74 abuts against the movable side of the spring sheet 73. When locking is required, the movable end of the spring sheet 73 is moved toward the guide column 72 by moving the lever, and then the guide column 72 and the spring sheet 73 are positioned with the X-axis guide rail or the Y-axis guide rail therebetween under the action of both the guide column 72 and the spring sheet 73.

[0041] In this embodiment, a control unit and a power supply unit are provided in the carrier 1 to supply power to the X-axis motor 54 and the Y-axis motor 64 so that they can operate in an orderly manner.

[0042] The chip appearance inspection platform in this embodiment has two working modes. The first one: adjust the position of the camera 4 and the carrier 2, and fix the two after the adjustment, wherein the fixation of the position of the carrier 2 is achieved by a locking mechanism. The operator only needs to place the tray S1 at the specified position of the carrier 2, and the camera 4 will shoot the products on the tray at one time and save the picture at the specified position. The second one: adjust the position of the camera 4, and keep its position unchanged after the adjustment. Place the tray S1 with the product at the specified position of the carrier 2, and then programmatically control the X-axis motor 54 and the Y-axis motor 64 so that the camera 4 can shoot the products on the tray one by one and save the picture at the specified position. Compared with the existing manual movement of the tray and manual photography, the efficiency of product inspection is improved.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A chip appearance inspection platform, characterized by: The invention comprises a carrier, a carrier plate is arranged above the carrier, a positioning component for positioning the tray is arranged on the carrier plate; a camera bracket is arranged on one side of the carrier plate, a camera with adjustable position is arranged on the camera bracket; a moving mechanism for driving the carrier plate to move along the X-axis and the Y-axis is arranged on the carrier, the moving mechanism drives the carrier plate to move to the bottom of the camera, and a locking mechanism for limiting the moving position of the carrier plate is arranged on the moving mechanism.

2. The chip appearance detection platform according to claim 1, characterized in that: The moving mechanism comprises an X-axis moving assembly arranged on the carrier, a Y-axis moving assembly is arranged on the X-axis moving assembly, the carrier is arranged on the Y-axis moving assembly, and locking mechanisms are arranged on both the X-axis moving assembly and the Y-axis moving assembly.

3. The chip appearance detection platform according to claim 2, characterized in that: The X-axis moving assembly includes two X-axis guide rails arranged on the carrier, an X-axis slider is slidably arranged on the X-axis guide rails, a connecting plate is arranged on the X-axis slider, an X-axis motor is arranged on the connecting plate, an X-axis rack distributed along the X-axis is arranged on the carrier, and an X-axis gear meshing with the X-axis rack is arranged on the driving shaft of the X-axis motor; the locking mechanism is arranged on the back side of the connecting plate, and the locking mechanism is slidably arranged on the X-axis guide rail.

4. The chip appearance detection platform according to claim 3, characterized in that: Hard limiters are arranged at both ends of the X-axis guide rail.

5. The chip appearance detection platform according to claim 3 or 4, characterized in that: The locking mechanism includes a locking carrier plate fixed on the back of the connecting plate, and a guide column and a spring sheet are provided on the locking carrier plate, and a channel for the X-axis guide rail to pass through is defined between the spring sheet and the guide column; an eccentric wrench is provided on the locking carrier plate, and the eccentric wrench abuts against one side of the spring sheet and manually drives one end of the spring sheet to move.

6. The chip appearance detection platform according to claim 3, characterized in that: The Y-axis moving assembly includes two Y-axis guide rails arranged on the back of the carrier plate, a Y-axis slider is slidably arranged on the Y-axis guide rails, the Y-axis slider is fixed on the connecting plate, the locking mechanism is arranged on the front of the connecting plate, and the locking mechanism is slidably arranged on the Y-axis guide rails; a Y-axis rack is arranged on the back of the carrier plate, a Y-axis motor is arranged on the connecting plate, and a Y-axis gear meshing with the Y-axis rack is arranged on the driving shaft of the Y-axis motor.

7. The chip appearance detection platform according to claim 6, characterized in that: Hard limiters are arranged at both ends of the Y-axis guide rail.

8. The chip appearance detection platform according to claim 6 or 7, characterized in that: The locking mechanism includes a locking carrier plate fixed on the front side of the connecting plate, and a guide column and a spring sheet are provided on the locking carrier plate, and a channel for the Y-axis guide rail to pass through is defined between the spring sheet and the guide column; an eccentric wrench is provided on the locking carrier plate, and the eccentric wrench abuts against one side of the spring sheet and manually drives one end of the spring sheet to move.

9. The chip appearance detection platform according to claim 1, characterized in that: The positioning assembly includes a positioning hole arranged on the carrier plate and a positioning pin arranged in the positioning hole, and the distribution position of the positioning pin includes at least one long side and one short side of the tray.

10. The chip appearance detection platform according to claim 1, characterized in that: The camera bracket is provided with a first adjusting member, the first adjusting member is provided with a horizontal support rod, the horizontal support rod is provided with a second adjusting member, the second adjusting member is provided with a vertical support rod, the vertical support rod is provided with a camera placement frame, and the camera is arranged in the camera placement frame.

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