Material positioning and centering device

Abstract

A material positioning and centering device comprises a base, a plurality of sliding block assemblies are arranged on the base in the circumferential direction at equal angles, each sliding block assembly comprises a sliding rail, the sliding rails extend in the circle diameter direction, and sliding blocks are driven by a driving assembly to reciprocate along the sliding rails; the rocker assembly comprises a rocker and a hinge seat, the top end of the rocker is provided with an aligning plate, the upper end of the rocker is rotatably connected with the hinge seat, the lower end of the rocker is provided with a sliding groove which extends from the bottom of the rocker to the hinge shaft, and the sliding block is slidably connected with the rocker through the sliding groove. Wherein the lower end of the hinge seat is fixed on the base, and the upper end of the hinge seat is provided with a hinge shaft which penetrates through the upper end of the rocker which rotates around the hinge shaft; a fixed shaft is arranged on the sliding block, penetrates through a sliding groove in the rocker and slides in the sliding groove to drive the rocker to swing in a reciprocating mode, and then the aligning plate is driven to clamp in a reciprocating mode, so that accurate positioning of sheet materials in four directions is achieved, and the positioning precision is high.

Description

Technical Field

[0001] The present application relates to a material positioning device and belongs to the technical field of sheet material processing. Background Art

[0002] With the continuous development of photovoltaic solar cells, the position and shape accuracy of laser processing cell patterns are getting higher and higher, requiring the solar cell to be in the center of the processing table and the camera. Solar cells are usually transported from the belt conveyor line to the processing table by a robot, which requires the position accuracy of the solar cell on the belt conveyor line to be higher and higher, which requires a material positioning and centering device to solve this problem.

[0003] In the prior art, the position accuracy of solar cells in the direction of the assembly line is achieved through sensors placed on the belt assembly line. The assembly line belt can be a high-friction belt or an adsorption belt. In the direction perpendicular to the assembly line, the position accuracy in this direction is usually achieved through a centering clamping mechanism, thereby completing the centering positioning of the solar cells.

[0004] Although this method can improve the position accuracy of solar cells on the assembly line, due to certain errors in the sensor or relative sliding between the solar cells and the silicon wafer assembly line belt, the repeatability of the solar cells cannot be fully guaranteed, which will affect the position accuracy of the solar cells after they are placed on the processing platform. Utility Model Content

[0005] In view of this, the present application provides a material positioning and centering device, which ensures the accuracy of the position of solar cells through mechanical alignment, aiming to solve the problems of the prior art.

[0006] The present application provides a material positioning and centering device, including a base, a slider assembly and a rocker assembly; a plurality of slider assemblies are arranged at equal angles along the circumferential direction on the base, the slider assembly includes a slide rail, the slide rail extends along the diameter direction of the circle, and the slider reciprocates along the slide rail under the drive of the driving assembly; the rocker assembly includes a rocker and an articulated seat, a leveling plate is arranged at the top end of the rocker, the upper end of the rocker is rotatably connected to the articulated seat, a slide groove is arranged at the lower end of the rocker, the slide groove extends from the bottom of the rocker to the connection direction of the articulated seat on the rocker, and the slider is slidably connected to the rocker through the slide groove.

[0007] In one embodiment of a material positioning and centering device, the lower end of the hinged seat is fixed on the base, and a hinge shaft is set on the upper end. The hinge shaft passes through the upper end of the rocker, and the rocker rotates around the hinge shaft; a fixed shaft is set on the slider, and the fixed shaft passes through the slide groove on the rocker and slides in the slide groove.

[0008] In the material positioning and centering device of one embodiment, the extension direction of the alignment plate in the horizontal plane is perpendicular to the extension direction of the slide rail.

[0009] In one embodiment of a material positioning and centering device, a driving assembly includes a turntable and a connecting rod. The center of the turntable is set at the center of the material positioning and centering device and rotates around the center. The connecting rod and the rocker are set equally. One end of the rocker is set at an equal angle on the periphery of the turntable and is rotatably connected to the turntable, and the other end is set on a slider and is rotatably connected to the slider.

[0010] In the material positioning and centering device of one embodiment, the connecting rod is an arc-shaped rod.

[0011] In a material positioning and centering device according to one embodiment, the turntable is driven to rotate by a motor.

[0012] In one embodiment of the material positioning and centering device, the angle between the connection point between the turntable and the connecting rod and the corresponding extension direction of the slide rail is 80°-100° in the loose state and 10°-30° in the clamped state.

[0013] A material positioning and centering device in one embodiment, wherein the material positioning and centering device and the support member are arranged correspondingly; wherein the slider assembly and the drive assembly are arranged below the support member, and the alignment plate of the rocker assembly is arranged around the support member, and when in a released state, the alignment plate is lower than the support surface, and when clamped, it is higher than the support surface.

[0014] In one embodiment of the material positioning and centering device, the support member is a belt conveyor module or a support table; the support surface is a conveyor belt of the belt conveyor module or a surface of the support table.

[0015] A material positioning and centering device according to one embodiment is characterized in that: the number of the slider assemblies is four.

[0016] The material positioning and centering device of the present application is adopted, and positioning is performed by clamping on all sides, and the positioning accuracy is high, which can reach ±0.5mm.

[0017] The material positioning and centering device of the present application can adapt to various positioning scenarios such as conveyor belts and load-bearing platforms, and has strong practicality and good versatility.

[0018] The material positioning and centering device of the present application has a low movement speed when clamping the plates, so that the impact on the solar cell sheets is small during clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural schematic diagram of a material positioning and centering device of the present application;

[0021] Figure 2 It is a schematic diagram of the main view of the clamping state and the loosening state of the material positioning and centering device of the present application;

[0022] Figure 3 It is a top view schematic diagram of the clamping state and the loosening state of the material positioning and centering device of the present application;

[0023] The figure includes, 100-material positioning and centering device, 200-carrying member, 1-slider assembly, 11-slider, 12-slide rail, 2-rocker assembly, 21-rocker, 22-aligning plate, 23-fixed capstan seat, 211-slide slot, 3-driving assembly, 31-turntable, 32-connecting rod, 33-driving member, 4-base, 111-fixed shaft, 211-slide slot, 231-hinge shaft. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] Secondly, the present application is described in detail with reference to the schematic diagram. When describing the embodiments of the present application in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present application. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] See also Figures 1 to 3 ,in, Figure 1 This is a structural schematic diagram of a material positioning and centering device of the present application; Figure 2 It is a schematic diagram of the main view of the clamping state and the loosening state of the material positioning and centering device of the present application;

[0028] Figure 3 The material positioning and centering device 100 provided in the present application is a top view schematic diagram of the clamping state and the loosening state. Specifically, the material positioning and centering device 100 provided in the present application includes a base 4, four slider assemblies 1 arranged at equal angles along the circumferential direction on the base 4, the slider assembly 1 includes a slide rail 12, the slide rail 12 extends along the diameter direction of the circle, and the slider 11 moves back and forth along the slide rail 12 under the drive of the drive assembly 3. For details, see Figure 1 The four slide rails 12 are arranged in a cross shape, and the line connecting the centers of the four slide rails 12 is the center of the material positioning and centering device.

[0029] The rocker assembly 2 includes a rocker 21 and an articulated seat 23. The upper end of the rocker 21 is rotatably connected to the articulated seat 23. A slide groove 211 is provided at the lower end of the rocker 21. The slider 11 is slidably connected to the rocker 21 through the slide groove 211. For details, see Figure 1 The lower end of the hinge seat 23 is fixed on the base 4, and the upper end is provided with a hinge shaft 231, which passes through the upper end of the rocker 21, and the rocker 21 can rotate around it. A fixed shaft 111 is provided on the slider 11, and the fixed shaft 111 passes through the slide groove 211 on the rocker 21 and can slide in the slide groove 211. Among them, the slide groove 211 is provided along the length direction of the rocker 21. In more detail, the slide groove 211 extends from the bottom of the rocker 21 to the direction of the hinge shaft 231. A aligning plate 22 is provided at the top of the rocker 21. Usually, the extension direction of the aligning plate 22 in the horizontal plane is perpendicular to the extension direction of the slide rail 12.

[0030] Continue to see Figure 1 , Figure 2 and Figure 3 ,in, Figure 2 The left figure in the figure is a schematic diagram of the main view of the clamping state of the material centering and positioning device of the present application. Figure 2 The right figure in the figure is a front view schematic diagram of the material centering and positioning device of the present application in a released state; Figure 3 The left figure in the figure is a top view schematic diagram of the clamping state of the material centering and positioning device of the present application, Figure 3 The right picture in the figure is a top view schematic diagram of the material centering and positioning device of the present application in the released state.

[0031] The material positioning and centering device provided in the application is characterized in that the driving component 3 drives the slider 11 to move away from the center, the fixed axis 111 of the slider 11 slides upward along the slide groove 211 of the rocker 21, and pushes the rocker 21 to rotate along the hinge shaft 231, thereby driving the alignment plate 22 to move inward and upward to clamp the material (clamping state), thereby realizing the centering positioning of the material; conversely, the driving component 3 drives the slider 11 to move closer to the center, the fixed axis 111 of the slider 11 slides downward along the slide groove 211 on the rocker 21, and pushes the rocker 21 to rotate along the hinge shaft 231, thereby driving the alignment plate 22 to move outward and downward to release the material (released state).

[0032] Specifically, as an implementable method, see Figure 1 and Figure 3The material positioning and centering device of the present application, the driving assembly 3 includes a turntable 31 and a connecting rod 32. The center of the turntable 31 is set at the center of the material positioning and centering device, and can rotate around the center. There are four connecting rods 32, one end of which is set at an equal angle on the periphery of the turntable 31 and is rotatably connected to the turntable 31, and the other end is set on the slider 11 and is rotatably connected to the slider 11. Figure 1 As shown, when the turntable 31 rotates counterclockwise, the connecting rod 32 pushes the slider 11 to move away from the center to complete the centering positioning; when the turntable 31 rotates clockwise, the connecting rod 32 pulls the slider 11 to move toward the center to release the material.

[0033] See also Figure 1 and Figure 3 As a preferred embodiment, the connecting rod 32 is an arc-shaped rod so that they will not interfere with each other when the turntable 31 rotates.

[0034] Specifically, as an implementation method, the turntable 31 is driven to rotate by a driving member 33, wherein the driving member 33 is a motor, which is arranged at the lower end of the turntable 31, and its driving end is connected to the center of the turntable 31. More specifically, the motor realizes reciprocating rotation at a set angle through a program, and drives the turntable 31 to rotate synchronously through the clamping structure on the turntable 31. The present application is not limited to this, and the clamping structure here can also be designed as a flat key or other structure.

[0035] See also Figure 2 The material positioning and centering device 100 of the present application is usually arranged corresponding to the carrier 200. The center of the material positioning and centering device 100 coincides with the center of the carrier 200, and this center is also the center where the material needs to be positioned and aligned. Specifically, its slider assembly 1 and the drive assembly 3 are arranged below the carrier 200, and the alignment plate 22 of its rocker assembly 2 is arranged around the carrier 200. In more detail, the material positioning and centering device of the present application, the movement trajectory height of the alignment plate 22 is lower than the height of the bearing surface of the carrier 200 at the low point; at the high point, it is slightly higher than the bearing surface. In other words, when in the loose state, the alignment plate 22 is lower than the bearing surface, and when clamped, it is slightly higher than the bearing surface. Usually, the carrier 200 is a belt conveyor module, or a bearing table. The conveyor belt of the belt conveyor module, or the surface of the bearing table, is the aforementioned bearing surface.

[0036] The material positioning and centering device 100 of the present application is arranged on a belt conveyor line or on a load-bearing platform. Specifically, the driving assembly 3 and the slider assembly 1 of the material positioning and centering device 100 are arranged below the conveyor belt of the belt conveyor line or in the space below the load-bearing platform. The rocker assembly 2 is also basically arranged below the conveyor belt of the belt conveyor line or in the space below the load-bearing platform. In the clamping state, the alignment plate 22 is slightly higher than the transmission belt or the load-bearing platform. With such an arrangement, the centering and positioning of the material can be achieved in the clamping state, and when released, the conveying of the material on the belt conveyor line is not affected; when the suction cup manipulator is used to transport the material on the belt conveyor line or on the load-bearing platform, the alignment plate 22 will not interfere with the suction cup.

[0037] Among them, the connection point of the turntable 31 and the connecting rod 32 satisfies the angle with the corresponding extension direction of the slide rail 12. When in the loose state, the angle is 80°-100°, preferably 90°; when clamping, the angle needs to be as small as possible, and it must not pass through the position where the angle is 0 during the movement. In this case, the angle is designed to be 10°-30° during clamping, preferably 20°, the purpose of which is to reduce the movement speed of the aligning plate during clamping as much as possible, thereby reducing the impact on the solar cell during clamping and achieving flexible clamping. It is worth noting that if the position where the angle is 0 is passed during the movement, it may cause the aligning plate or the aligning wheel to swing back and forth during the process from opening to clamping, thereby causing the solar cell to be broken.

[0038] Those skilled in the art can understand that the slider assemblies and rocker assemblies in the above embodiments all have four connecting rods on the four turntables, which are distributed at 90 degree intervals, so as to realize the centering and alignment of the materials from four directions. For square materials such as solar cells, good centering and positioning can be achieved. The present application is not limited to this. When the shape of the material is different, for example, when the material is hexagonal, the slider assemblies, rocker assemblies, and connecting rods on the turntable can also be set to six correspondingly, so that the material can be centered from six sides.

[0039] The above is only a preferred implementation of the present application. Although the present application has been disclosed as a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of protection of the technical solution of the present application.

Claims

1. A material positioning and centering device, characterized in that: It includes a base, a slider assembly and a rocker assembly; A plurality of slider assemblies are arranged on the base at equal angles along the circumferential direction, wherein the slider assembly comprises a slide rail extending along the diameter direction of the circle, and the slider is driven by the driving assembly to reciprocate along the slide rail; The rocker assembly includes a rocker and an articulated seat. A leveling plate is arranged at the top of the rocker. The upper end of the rocker is rotatably connected to the articulated seat. A slide groove is arranged at the lower end of the rocker. The slide groove extends from the bottom of the rocker to the connection direction of the articulated seat on the rocker. The slider is slidably connected to the rocker through the slide groove.

2. The material positioning and centering device according to claim 1, characterized in that: The lower end of the hinge seat is fixed on the base, and the upper end is provided with a hinge shaft, which passes through the upper end of the rocker, and the rocker rotates around the hinge shaft; A fixed shaft is arranged on the slide block, and the fixed shaft passes through a slide groove on the rocker and slides in the slide groove.

3. The material positioning and centering device according to claim 1, characterized in that: The extending direction of the alignment plate in the horizontal plane is perpendicular to the extending direction of the slide rail.

4. The material positioning and centering device according to claim 1, characterized in that: The driving assembly includes a turntable and a connecting rod. The center of the turntable is set at the center of the material positioning and centering device and rotates around this center. The connecting rod and the rocker are set in equal amounts. One end of the rocker is set at an equal angle on the periphery of the turntable and is rotatably connected to the turntable, and the other end is set on the slider and is rotatably connected to the slider.

5. The material positioning and centering device according to claim 4, characterized in that: The connecting rod is an arc-shaped rod.

6. The material positioning and centering device according to claim 4, characterized in that: The turntable is driven to rotate by a motor.

7. The material positioning and centering device according to claim 4, characterized in that: The angle between the connection point between the turntable and the connecting rod and the corresponding extension direction of the slide rail is 80°-100° in the loose state and 10°-30° in the clamped state.

8. The material positioning and centering device according to claim 1, characterized in that: The material positioning and centering device and the bearing member are arranged correspondingly; The slider assembly and the driving assembly are arranged below the bearing member, and the alignment plate of the rocker assembly is arranged around the bearing member. When in a loose state, the alignment plate is lower than the bearing surface, and when clamped, it is higher than the bearing surface.

9. The positioning and centering device according to claim 8, characterized in that: The bearing member is a belt conveyor module or a bearing platform; the bearing surface is a conveyor belt of the belt conveyor module or a surface of the bearing platform.

10. The material positioning and centering device according to any one of claims 1 to 9, characterized in that: The number of the slider assemblies is four.

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