Crystal support positioning mechanism

By designing a crystal tray positioning mechanism and utilizing a combination of stop cylinders and positioning cylinders, precise positioning of the crystal tray was achieved, solving the problem of inaccurate positioning in existing technologies, improving the quality and efficiency of silicon wafer cutting, and reducing maintenance time.

CN223998728UActive Publication Date: 2026-03-17LIANZHI (DALIAN) INTELLIGENT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing wafer holder positioning is inaccurate, resulting in low silicon wafer cutting quality and efficiency, and long repair and troubleshooting time.

Method used

Design a crystal tray positioning mechanism, including a stop cylinder and a positioning cylinder, to achieve precise positioning through a stop block and a positioning guide, and equipped with a PLC control system for coordinated operation.

Benefits of technology

It achieves high-precision crystal tray positioning, improves silicon wafer cutting quality and efficiency, and shortens maintenance and troubleshooting time.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223998728U_ABST
    Figure CN223998728U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of photovoltaic technology, and discloses a crystal support positioning mechanism. Comprising a stopping air cylinder fixing beam and a positioning air cylinder fixing beam, the stop cylinder fixing beam is provided with a stop cylinder used for stopping a workpiece, the front end of a cylinder rod of the stop cylinder is provided with a stop block, the two ends of the positioning cylinder fixing beam are each provided with a positioning cylinder used for positioning the workpiece, and the front end of a cylinder rod of one positioning cylinder is provided with a positioning guide piece used for positioning and guiding the workpiece. A crystal support positioning block is arranged at the front end of a cylinder rod of the other positioning cylinder and connected with the front end of the cylinder rod of the positioning cylinder through a positioning supporting plate, and the four corners of the front end of the positioning supporting plate are each provided with a crystal support positioning block used for positioning a workpiece. The crystal support positioning mechanism is compact in structure, accurate positioning can be further achieved, and the problems that in the prior art, coarse positioning is inaccurate, errors are caused, and follow-up procedure work is affected are solved. And the working efficiency is improved. And the maintenance and troubleshooting time is shortened.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, and relates to a crystal holder positioning mechanism. Background Technology

[0002] In the photovoltaic industry, during processes such as silicon wafer cutting, the crystal tray serves as a crucial component, supporting the silicon rod and providing a positioning reference. The accuracy of its positioning directly impacts the quality and efficiency of silicon wafer cutting. Currently, crystal tray transfer processes generally do not involve precise positioning, or only use baffles on the conveyor rollers for coarse limiting before transferring to the next process, or relying on robotic operation or gantry cranes for removal. However, this method of positioning makes it difficult to achieve high-precision positioning, failing to meet current high-precision production requirements and leading to a decrease in subsequent production yields. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a crystal tray positioning mechanism. This mechanism has a compact structure and can further achieve precise positioning, overcoming the problem of inaccurate coarse positioning in existing systems, which causes errors and affects subsequent processes. It improves work efficiency and reduces maintenance and troubleshooting time.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a crystal support positioning mechanism, including a stop cylinder fixing beam and a positioning cylinder fixing beam arranged vertically; a stop cylinder for stopping the workpiece is provided on the stop cylinder fixing beam, and a stop block is provided at the front end of the cylinder rod of the stop cylinder; a positioning cylinder for positioning the workpiece is provided at each end of the positioning cylinder fixing beam, and a positioning guide is provided at the front end of the cylinder rod of one positioning cylinder for positioning and guiding the workpiece, and a crystal support positioning block is provided at the front end of the cylinder rod of the other positioning cylinder. The positioning guide has a U-shaped structure, and its U-shaped groove is interference-fitted with the workpiece; the crystal support positioning block is connected to the front end of the cylinder rod of the positioning cylinder through a positioning support plate, and a crystal support positioning block is provided at each of the four corners of the front end of the positioning support plate for positioning the workpiece.

[0005] The stop cylinder is set vertically, and the positioning cylinder is set horizontally and facing each other.

[0006] The positioning cylinder is mounted on the positioning cylinder fixing beam via a positioning cylinder bracket.

[0007] The crystal tray positioning block is preferably a round or square block. The crystal tray positioning block and the positioning support plate are elastically connected.

[0008] The stop cylinder is mounted on the stop cylinder fixing beam via a stop cylinder bracket. Preferably, two stop cylinders are provided, symmetrically arranged on the stop cylinder fixing beam.

[0009] A position sensor is installed adjacent to the stop cylinder, and the position sensor is fixed to the stop cylinder fixing beam by a position sensor bracket.

[0010] Ideally, two position sensors should be installed, with one position sensor installed on the adjacent side of each stop cylinder.

[0011] The two positioning cylinders are symmetrically arranged.

[0012] The positioning guide is connected to the front end of the cylinder rod of the positioning cylinder through a positioning support plate. The positioning support plate is set at the front end of the cylinder rod of the positioning cylinder, and the positioning guide is set on the positioning support plate.

[0013] The stop cylinder fixing beam and the positioning cylinder fixing beam are connected to form an upper and lower frame structure, or they are fixed on a fixed frame to form an upper and lower structure.

[0014] The preferred layout for the stop cylinder fixing beam and the positioning cylinder fixing beam is an upper and lower staggered arrangement.

[0015] Furthermore, the crystal tray positioning mechanism is also equipped with a PLC control system. The stop cylinder, positioning cylinder, and position sensor are respectively connected to the PLC control system, and none of them are limited to a specific model, as long as they realize their working functions.

[0016] It should be noted that the crystal tray positioning mechanism of this utility model can not only be used for crystal trays, but also for positioning the mixture of crystal trays, silicon rods and adhesive plates after they are bonded together.

[0017] The advantages of this utility model compared with the prior art are:

[0018] This utility model provides a crystal tray positioning mechanism with a compact structure, which can further achieve precise positioning, overcoming the problem of inaccurate coarse positioning in existing systems, causing errors and affecting subsequent processes. This improves work efficiency and reduces maintenance and troubleshooting time. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a perspective view of the crystal holder positioning mechanism of this utility model.

[0021] Figure 2 This is the front view of the crystal holder positioning mechanism of this utility model.

[0022] Figure 3 This is a top view of the crystal holder positioning mechanism of this utility model.

[0023] Figure 4 This is a side view of the crystal holder positioning mechanism of this utility model.

[0024] In the figure: 1. Stop cylinder fixing beam, 2. Stop cylinder bracket, 3. Stop cylinder, 4. Positioning cylinder, 5. Positioning support plate, 6. Positioning cylinder bracket, 7. Positioning cylinder fixing beam, 8. Stop block, 9. Positioning guide, 10. Positioning sensor bracket, 11. Crystal support positioning block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.

[0026] Example 1

[0027] A crystal holder positioning mechanism, such as Figures 1-4 As shown, it includes a stop cylinder fixing beam 1 and a positioning cylinder fixing beam 7 arranged vertically. The stop cylinder fixing beam 1 is equipped with a stop cylinder 3 for stopping the workpiece. The front end of the cylinder rod of the stop cylinder 3 is equipped with a stop block 8. The positioning cylinder fixing beam 7 is equipped with a positioning cylinder 4 at each end for positioning the workpiece. The front end of the cylinder rod of one positioning cylinder 4 is equipped with a positioning guide 9 for positioning and guiding the workpiece. The front end of the cylinder rod of the other positioning cylinder 4 is equipped with a crystal support positioning block 11. The positioning guide 9 has a U-shaped structure, and its U-shaped groove is interference-fitted with the workpiece. The crystal support positioning block 11 is connected to the front end of the cylinder rod of the positioning cylinder 4 through a positioning support plate 5. A crystal support positioning block 11 is set at each of the four corners of the front end of the positioning support plate 5 for positioning the workpiece.

[0028] The stop cylinder 3 is set vertically, and the positioning cylinder 4 is set horizontally and facing each other.

[0029] The positioning cylinder 4 is mounted on the positioning cylinder fixing beam 7 via the positioning cylinder bracket 6.

[0030] The crystal holder positioning block 11 is preferably a circular or square block. The crystal holder positioning block 11 and the positioning support plate 5 are elastically connected.

[0031] The stop cylinder 3 is mounted on the stop cylinder fixing beam 1 via the stop cylinder bracket 2. Preferably, two stop cylinders 3 are provided, and the two stop cylinders 3 are symmetrically arranged on the stop cylinder fixing beam 1.

[0032] A position sensor is installed adjacent to the stop cylinder 3, and the position sensor is fixed to the stop cylinder fixing beam 1 by the position sensor bracket 10.

[0033] Ideally, two position sensors should be installed, with one position sensor installed on the adjacent side of each stop cylinder 3.

[0034] Two positioning cylinders are symmetrically arranged.

[0035] The positioning guide 9 is connected to the front end of the cylinder rod of the positioning cylinder 4 through the positioning support plate 5. The positioning support plate 5 is provided at the front end of the cylinder rod of the positioning cylinder 4, and the positioning guide 9 is provided on the positioning support plate 5.

[0036] The stop cylinder fixing beam 1 and the positioning cylinder fixing beam 7 are connected to form an upper and lower frame structure, or are respectively fixed on the main frame to form an upper and lower structure.

[0037] The preferred layout for the stop cylinder fixing beam 1 and the positioning cylinder fixing beam 7 is an upper and lower staggered arrangement.

[0038] Furthermore, the crystal tray positioning mechanism is also equipped with a PLC control system. The stop cylinder 3, positioning cylinder 4, and position sensor are respectively connected to the PLC control system, and none of them are limited to a specific model, as long as they realize their working functions.

[0039] In specific operation, the material conveying roller conveyor of the previous process (existing technical equipment used for conveying materials, not the device of this utility model, so it is not described in detail, but its working function is achieved) conveys materials (crystal trays, crystal rods, adhesive materials of adhesive boards) to the bottom of the crystal tray positioning mechanism. The crystal tray positioning mechanism is fixed on a frame. After the position sensor in the crystal tray positioning mechanism detects that the material has arrived, the stop cylinder 3 starts to work. The cylinder rod of the stop cylinder 3 extends downward, and the stop block 8 moves down to stop the material. At this time, the positioning cylinder 4 starts to work. The positioning cylinder 4 with the positioning guide 9 positions the material through the U-shaped structure, and further positions and aligns the material precisely through the crystal tray positioning block 11 of another positioning cylinder 4. After alignment, the cylinder rod of the stop cylinder 3 moves upward, driving the stop block 8 to move upward. The positioning cylinder 4 retracts the cylinder rod and releases the material.

[0040] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A wafer boat positioning mechanism, characterized by, The utility model provides a kind of workpiece positioning device, including up-down arrangement stop cylinder fixed beam (1), positioning cylinder fixed beam (7);Stop cylinder (3) for stopping workpiece is provided on stop cylinder fixed beam (1), the cylinder rod front end of stop cylinder (3) is provided with stop block (8), positioning cylinder (4) for positioning workpiece is provided with one on each end of positioning cylinder fixed beam (7), the cylinder rod front end of one of positioning cylinder (4) is provided with positioning guide (9) for positioning guide workpiece, the cylinder rod front end of another positioning cylinder (4) is provided with wafer holder positioning block (11), positioning guide (9) is U-shaped structure, and its U-shaped groove is provided with excess to workpiece;Wafer holder positioning block (11) is connected by positioning support plate (5) with the cylinder rod front end of positioning cylinder (4), and four corners of the front end of positioning support plate (5) are provided with one wafer holder positioning block (11) for positioning workpiece.

2. A wafer boat positioning mechanism as set forth in claim 1, wherein, Stop cylinder (3) is vertically arranged, and positioning cylinder (4) is horizontally arranged and oppositely arranged.

3. A wafer boat positioning mechanism as set forth in claim 1, wherein, Positioning cylinder (4) is arranged on positioning cylinder fixed beam (7) by positioning cylinder support (6).

4. A wafer boat positioning mechanism as set forth in claim 1, wherein, Wafer holder positioning block (11) and positioning support plate (5) are elastically connected.

5. A wafer boat positioning mechanism as claimed in claim 1, wherein, Stop cylinder (3) is arranged on stop cylinder fixed beam (1) by stop cylinder support (2);Two stop cylinders (3) are symmetrically arranged on stop cylinder fixed beam (1).

6. A wafer boat positioning mechanism as claimed in claim 1, wherein, Arrangement sensor is arranged adjacent to stop cylinder (3), and arrangement sensor is fixed on stop cylinder fixed beam (1) by arrangement sensor support (10).

7. A wafer boat positioning mechanism as claimed in claim 1, wherein, The positioning guide (9) is connected by the positioning support plate (5) with the cylinder rod front end of the positioning cylinder (4), and the cylinder rod front end of the positioning cylinder (4) is provided with the positioning support plate (5), and the positioning guide (9) is provided on the positioning support plate (5).

8. A wafer boat positioning mechanism as claimed in claim 1, wherein, The stop cylinder fixed beam (1) and the positioning cylinder fixed beam (7) are connected to form an up-down layout frame structure or are fixed on the main frame to form an up-down layout structure.

9. A wafer boat positioning mechanism as claimed in claim 1, wherein, The stop cylinder fixed beam (1) and the positioning cylinder fixed beam (7) are up-down staggered.

10. A wafer boat positioning mechanism as claimed in claim 6, wherein, Two arrangement sensors are provided, and one arrangement sensor is provided adjacent to each side of each stop cylinder (3).