A positioning mechanism for an inspection machine

Abstract

The utility model discloses a positioning mechanism of detection machine, including positioning support, first locating seat and second locating seat, the moving direction of first locating seat and second locating seat is opposite, and the outside of first locating seat is fixed with first outside locating strip, and the inside of first locating seat is fixed with first inside locating strip, and the outside of second locating seat is fixed with second outside locating strip, and the inside of second locating seat is fixed with second inside locating strip, and the middle part of first inside locating strip is provided with first recess, and the middle part of second inside locating strip is provided with second recess, and the middle part of second recess is provided with positioning table, and first inside locating strip is in the inside of second recess, and positioning table is in the inside of first recess. The positioning mechanism of detection machine is used for the conveying positioning of double half silicon wafer, and in the positioning structure of inside middle part, adopts the positioning structure of recess mutual receiving opposite, makes the positioning structure of inside smaller space occupation, is helpful to the double half piece transport of smaller distance.

Description

Technical Field

[0001] This utility model relates to the technical field of testing equipment, and in particular to a positioning mechanism for a testing machine. Background Technology

[0002] After printing, crystalline silicon photovoltaic solar wafers require AOI (Automated Optical Inspection) and IV (Inductively Coupled Inspection) testing. AOI, based on optical principles, detects common defects encountered during printing production. IV testing involves measuring the current and voltage characteristic curves (IV curves) of the photovoltaic module. Only wafers that pass this inspection and meet quality standards will proceed to the next stage of production. In existing inspection machines, the conveyor rails need to center the two halves of the wafer. The inner positioning section in the center of this section occupies a significant amount of space, affecting the transport of the two halves of the wafer with their relatively small spacing. Utility Model Content

[0003] One objective of this invention is to provide a positioning mechanism for an inspection machine, applicable to the transport of double-half silicon wafers with a small center distance, saving space and facilitating the docking of front and rear structures.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A positioning mechanism for an inspection machine includes a positioning bracket, a first positioning seat, and a second positioning seat. Positioning synchronous wheels are mounted on both sides of the positioning bracket, and a positioning synchronous belt is drivingly connected between the positioning synchronous wheels. The first positioning seat and the second positioning seat are respectively fixed to both sides of the positioning synchronous belt, and their movement directions are opposite. A first outer positioning strip is fixed to the outer side of the first positioning seat, and a first inner positioning strip is fixed to the inner side of the first positioning seat. A second outer positioning strip is fixed to the outer side of the second positioning seat, and a second inner positioning strip is fixed to the inner side of the second positioning seat. A first groove is provided in the middle of the first inner positioning strip, and a second groove is provided in the middle of the second inner positioning strip. A positioning platform is provided in the middle of the second groove. The first inner positioning strip is located inside the second groove, and the positioning platform is located inside the first groove.

[0006] As a preferred technical solution, a positioning motor is fixed to the lower side of one side of the positioning bracket, and the drive end of the positioning motor is keyed to the positioning synchronous wheel.

[0007] As a preferred technical solution, the positioning bracket is provided with a positioning transverse slide rail, and both the first positioning seat and the second positioning seat are provided with positioning transverse sliders, which slide on the positioning transverse slide rail.

[0008] As a preferred technical solution, a positioning sensor is installed on one side of the positioning bracket, and a positioning sensor plate is fixed on the second positioning seat. The positioning sensor plate is signal-connected to the positioning sensor.

[0009] As a preferred technical solution, the positioning bracket is provided with a third positioning seat, the positioning synchronous wheel is installed at the rear end of the positioning bracket, the positioning steering wheel is installed in the middle of the positioning bracket, the positioning synchronous belt passes through the positioning steering wheel, the third positioning seat is fixed at the rear end of the positioning synchronous belt, the movement direction of the third positioning seat is perpendicular to that of the first positioning seat, and a rear positioning strip is fixed on the third positioning seat.

[0010] As a preferred technical solution, positioning guide rods are fixed on the first outer positioning strip, the first inner positioning strip, the second outer positioning strip, the second inner positioning strip, and the rear positioning strip.

[0011] As a preferred technical solution, the upper end of the positioning guide rod is rotatably equipped with a positioning bearing.

[0012] The beneficial effects of this utility model are as follows: It provides a positioning mechanism for an inspection machine, which is used for the transport and positioning of double half-wafers. In the positioning structure of the inner middle part, a positioning structure with grooves receiving each other and facing each other is adopted, so that the positioning structure of the inner side occupies less space, which helps to transport double half-wafers with smaller distances. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the first structure of the positioning mechanism of a testing machine as described in the embodiment (without a third positioning seat);

[0015] Figure 2 This is a schematic diagram of the second structure of the positioning mechanism of a testing machine as described in the embodiment (with a third positioning seat).

[0016] Figures 1 to 2 middle:

[0017] 1. Positioning bracket; 2. First positioning seat; 3. Second positioning seat; 4. Positioning synchronous pulley; 5. Positioning synchronous belt; 6. First outer positioning strip; 7. First inner positioning strip; 8. Second outer positioning strip; 9. Second inner positioning strip; 10. First groove; 11. Second groove; 12. Positioning platform; 13. Positioning motor; 14. Positioning transverse slide rail; 15. Positioning sensor; 16. Positioning sensor plate; 17. Rear positioning strip; 18. Positioning steering wheel; 19. Positioning guide rod; 20. Positioning bearing. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 2 As shown in this embodiment, a positioning mechanism for a testing machine includes a positioning bracket 1, a first positioning seat 2, and a second positioning seat 3. Positioning synchronous wheels 4 are installed on both sides of the positioning bracket 1, and a positioning synchronous belt 5 is connected between the positioning synchronous wheels 4. The first positioning seat 2 and the second positioning seat 3 are respectively fixed on both sides of the positioning synchronous belt 5. The first positioning seat 2 and the second positioning seat 3 move in opposite directions. A first outer positioning strip 6 is fixed on the outer side of the first positioning seat 2, and a first inner positioning strip 7 is fixed on the inner side of the first positioning seat 2. A second outer positioning strip 8 is fixed on the outer side of the second positioning seat 3, and a second inner positioning strip 9 is fixed on the inner side of the second positioning seat 3. A first groove 10 is provided in the middle of the first inner positioning strip 7, and a second groove 11 is provided in the middle of the second inner positioning strip 9. A positioning platform 12 is provided in the middle of the second groove 11. The first inner positioning strip 7 is located inside the second groove 11, and the positioning platform 12 is located inside the first groove 10.

[0020] When the conveyor moves the two halves of the wafer over, the positioning timing wheel 4 rotates, driving the positioning timing belt 5 to move. The first positioning seat 2 and the second positioning seat 3 on both sides begin to move towards the center. The first outer positioning strip 6 and the second outer positioning strip 8 both move from the outside to the inside. The first inner positioning strip 7 leaves the second groove 11 of the second inner positioning strip 9. At the same time, the positioning platform 12 in the middle of the second inner positioning strip 9 also leaves the first groove 10 of the first inner positioning strip 7, so that the two halves of the silicon wafer on both sides can achieve the centering positioning operation.

[0021] A positioning motor 13 is fixed on one side of the positioning bracket 1. The drive end of the positioning motor 13 is keyed to the positioning synchronous wheel 4. The positioning motor 13 is responsible for providing power to the positioning synchronous wheel 4, so that the positioning synchronous wheel 4 rotates.

[0022] The positioning bracket 1 is provided with a positioning transverse slide rail 14, and the first positioning seat 2 and the second positioning seat 3 are both provided with positioning transverse sliders. The positioning transverse sliders slide on the positioning transverse slide rail 14. On both sides of the positioning bracket 1, the movement of the first positioning seat 2 and the second positioning seat 3 relies on the positioning transverse sliders and the positioning transverse slide rail 14 to reduce friction and ensure the lateral stability of the movement.

[0023] A positioning sensor 15 is installed on one side of the positioning bracket 1, and a positioning sensor 16 is fixed on the second positioning seat 3. The positioning sensor 16 is connected to the positioning sensor 15. When the first positioning seat 2 and the second positioning seat 3 have completed the positioning of the two half-wafers, the positioning sensor 15 stops when it senses the positioning sensor 16 during the outward reset process.

[0024] When positioning the rear end of the conveyor rail, the rear side also needs to be positioned. At this time, a third positioning seat is set on the positioning bracket 1, a positioning synchronous wheel 4 is installed at the rear end of the positioning bracket 1, a positioning steering wheel 18 is installed in the middle of the positioning bracket 1, the positioning synchronous belt 5 passes through the positioning steering wheel 18, the third positioning seat is fixed at the rear end of the positioning synchronous belt 5, the movement direction of the third positioning seat is perpendicular to that of the first positioning seat 2, and a rear positioning strip 17 is fixed on the third positioning seat.

[0025] As the positioning motor 13 drives the positioning synchronous wheel 4 to rotate, the first positioning seat 2 and the second positioning seat 3 on both sides move towards the middle, while the third positioning seat on the rear moves forward, thus achieving silicon wafer positioning in three directions.

[0026] Positioning guide rods 19 are fixed on the first outer positioning strip 6, the first inner positioning strip 7, the second outer positioning strip 8, the second inner positioning strip 9, and the rear positioning strip 17. Moreover, a positioning bearing 20 rotates on the upper end of the positioning guide rod 19. When each positioning strip positions the double half-wafer, the positioning bearing 20 on the positioning guide rod 19 pushes the edge of the double half-wafer. The rolling positioning bearing 20 effectively protects the structure of the double half-wafer.

[0027] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A positioning mechanism of an inspection machine, characterized by, The device includes a positioning bracket, a first positioning seat, and a second positioning seat. Positioning synchronous pulleys are mounted on both sides of the positioning bracket, and a positioning synchronous belt connects the positioning synchronous pulleys. The first positioning seat and the second positioning seat are respectively fixed to both sides of the positioning synchronous belt, and their movement directions are opposite. A first outer positioning strip is fixed to the outer side of the first positioning seat, and a first inner positioning strip is fixed to the inner side of the first positioning seat. A second outer positioning strip is fixed to the outer side of the second positioning seat, and a second inner positioning strip is fixed to the inner side of the second positioning seat. A first groove is provided in the middle of the first inner positioning strip, and a second groove is provided in the middle of the second inner positioning strip. A positioning platform is provided in the middle of the second groove. The first inner positioning strip is located inside the second groove, and the positioning platform is located inside the first groove.

2. A positioning mechanism for an inspection machine according to claim 1, wherein A positioning motor is fixed to one side of the positioning bracket, and the drive end of the positioning motor is keyed to the positioning synchronous wheel.

3. The positioning mechanism of an inspection machine according to claim 1, wherein The positioning bracket is provided with a positioning transverse slide rail, and both the first positioning seat and the second positioning seat are provided with positioning transverse sliders, which slide on the positioning transverse slide rail.

4. The positioning mechanism of a testing machine according to claim 1, characterized in that, A positioning sensor is installed on one side of the positioning bracket, and a positioning sensor plate is fixed on the second positioning seat. The positioning sensor plate is signal-connected to the positioning sensor.

5. The positioning mechanism of a testing machine according to claim 1, characterized in that, The positioning bracket is provided with a third positioning seat, the positioning synchronous wheel is installed at the rear end of the positioning bracket, the positioning steering wheel is installed in the middle of the positioning bracket, the positioning synchronous belt passes through the positioning steering wheel, the third positioning seat is fixed at the rear end of the positioning synchronous belt, the movement direction of the third positioning seat is perpendicular to that of the first positioning seat, and a rear positioning strip is fixed on the third positioning seat.

6. The positioning mechanism of a testing machine according to claim 5, characterized in that, Positioning guide rods are fixed on the first outer positioning strip, the first inner positioning strip, the second outer positioning strip, the second inner positioning strip, and the rear positioning strip.

7. The positioning mechanism of a testing machine according to claim 6, characterized in that, The upper end of the positioning guide rod is equipped with a positioning bearing.

Images