A lamination machine

By setting positioning pins and a transfer mechanism in the stacking machine, precise alignment and pressing of the assembled wafers are achieved, solving the problems of offset and misalignment caused by inaccurate positioning of the stacking machine, improving production yield and reducing costs.

CN224417647UActive Publication Date: 2026-06-26CHINAMETAL TECH (HENAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINAMETAL TECH (HENAN) CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing stacking machines cannot achieve precise positioning in the stacking process of assembled wafers, resulting in wafer offset and misalignment, which reduces production yield and increases costs.

Method used

The stacking platform and the alignment platform are set at intervals and are equipped with positioning pins. The precise alignment and pressing of the assembled pieces are achieved through the transfer mechanism. Combined with components such as lifting cylinders, guide shafts and sensors, the positioning accuracy and stability are ensured.

Benefits of technology

It improves the accuracy and stability of stacking, reduces product defects, significantly increases production yield and reduces scrap rate, and provides a guarantee for the efficient production of ceramic assembled sheets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of lamination equipment, in particular to a lamination machine which comprises interval arranged lamination platforms and an array platform; the lamination platform has a horizontal first bearing surface, a first assembly sheet is placed on the first bearing surface; a first positioning pin is inserted on the lamination platform; the first positioning pin is driven to move along the vertical direction and can be inserted into a first positioning hole on the first assembly sheet; the array platform has a horizontal second bearing surface, a second assembly sheet is placed on the second bearing surface; a transfer mechanism is used to place the second assembly sheet on the first assembly sheet and move downward to generate a pressing force so that the first assembly sheet and the second assembly sheet are pressed together. The application can realize accurate alignment of the first assembly sheet and the second assembly sheet, avoid deviation of the two assembly sheets during lamination and improve the production yield.
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Description

Technical Field

[0001] This application relates to the field of stacking equipment technology, and more specifically, to a stacking machine. Background Technology

[0002] Besides manufacturing multilayer capacitors, wafer stacking machines are widely used in the manufacture of other electronic components requiring precision lamination technology. However, existing wafer stacking machines cannot achieve precise positioning of the assembled wafers during the wafer stacking process, easily leading to misalignment between the two wafers and ultimately misalignment during lamination. This results in a significant decrease in production yield and an increase in production costs. Utility Model Content

[0003] The purpose of this application is to provide a stacking machine that can achieve precise alignment between the first and second assembled wafers, avoid misalignment when stacking the two assembled wafers, and improve production yield.

[0004] The embodiments of this application are implemented as follows:

[0005] This application provides a stacking machine, including a stacking platform and an aligning platform spaced apart. The stacking platform has a horizontal first bearing surface on which a first assembly piece is placed. A first positioning pin is inserted into the stacking platform. The first positioning pin is driven to move vertically and can be inserted into a first positioning hole on the first assembly piece. The aligning platform has a horizontal second bearing surface on which a second assembly piece is placed. A second positioning pin is inserted into the aligning platform. The second positioning pin is driven to move vertically and can be inserted into a second positioning hole on the second assembly piece. A transfer mechanism is provided above the aligning platform. The transfer mechanism picks up the second assembly piece, places it on the first assembly piece, and moves downward to generate pressing pressure, causing the first assembly piece and the second assembly piece to press together.

[0006] As an optional implementation, when the second assembly piece is placed on the first assembly piece, the height of the first positioning pin protruding from the first bearing surface is greater than the thickness of the first assembly piece; the first positioning pin can pass through the first positioning hole in the vertical direction and be inserted into the second positioning hole.

[0007] As an optional implementation, a first lifting cylinder is provided below the stacking platform, a first positioning plate is provided horizontally at the drive end of the first lifting cylinder, a first guide hole is provided on the first positioning plate, and a first guide shaft is provided on the stacking platform that passes through the first guide hole in a vertical direction; the first positioning pin is provided on the first positioning plate.

[0008] And / or, a second lifting cylinder is provided below the alignment platform, the driving end of the second lifting cylinder is provided with a horizontal second positioning plate, the second positioning plate is provided with a second guide hole, and the alignment platform is provided with a second guide shaft that passes through the second guide hole in the vertical direction; the second positioning pin is provided on the second positioning plate.

[0009] As an optional implementation, there are multiple first positioning pins arranged at intervals on the stacking platform; and / or, there are multiple second positioning pins arranged at intervals on the column platform.

[0010] As an optional implementation, it further includes a first conveying component and a second conveying component; the first conveying component is used to convey a first assembled piece to the stacking platform; the second conveying component is used to convey a second assembled piece to the aligning platform; the conveying direction of the first conveying component and the conveying direction of the second conveying component intersect in a horizontal plane.

[0011] As an optional implementation, a pressure plate assembly is also included; the pressure plate assembly includes a pressure plate cylinder and a pressure plate; the pressure plate is horizontally arranged and its height is higher than that of the stacking platform; the pressure plate cylinder can drive the pressure plate to move along the conveying direction of the first conveying assembly, so that the pressure plate and the stacking platform at least partially overlap in projection; a lifting mechanism is provided below the stacking platform, the lifting mechanism drives the stacking platform to rise, and the pressure plate abuts against the first assembled piece.

[0012] As an optional implementation, there are two pressure plate assemblies, which are respectively arranged on opposite sides of the stacking platform.

[0013] As an optional implementation, a positioning blocking mechanism is also included; the positioning blocking mechanism includes a blocking part disposed on the conveying path of the first conveying component and a telescopic drive for driving the blocking part to move vertically; the blocking part is located on one side of the stacking platform; when the first conveying component conveys the first assembled piece to the stacking platform, the telescopic drive pushes the blocking part to rise, the blocking part abuts against the side of the first assembled piece, the first assembled piece stops moving, and the first positioning pin corresponds to the position of the first positioning hole.

[0014] As an optional implementation, the first conveying assembly is provided with an inlet sensor, a position sensor and an outlet sensor in sequence along the conveying path; the inlet sensor, the position sensor and the outlet sensor are all used to detect the position of the first assembled piece.

[0015] As an optional implementation, the first conveying assembly includes two parallel and spaced conveyor belts, the distance between the two conveyor belts being less than the width of the first assembled piece and greater than the width of the stacking platform; the stacking platform is disposed between the two conveyor belts, and when the first assembled piece is moved to the stacking platform, the stacking platform is driven to be lifted so that the first assembled piece can be placed on the stacking platform.

[0016] The beneficial effects of the embodiments of this application include:

[0017] This embodiment of the application achieves precise positioning of the first and second assembled pieces by setting up a stacking platform and an alignment platform with positioning pins, effectively avoiding the problem of misalignment of the assembled pieces during the stacking process. The transfer mechanism smoothly places the precisely positioned second assembled piece on the first assembled piece and applies pressure to ensure accurate pressing, greatly improving the stacking accuracy and stability. This design of this embodiment not only reduces product defects caused by misalignment and significantly improves production yield, but also reduces the additional costs caused by increased scrap, providing a reliable guarantee for the efficient and high-quality production of ceramic assembled pieces. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the structural schematic diagrams of the stacking machine according to an embodiment of this application;

[0020] Figure 2 This is a second schematic diagram of the stacking machine according to an embodiment of this application;

[0021] Figure 3 This is the third schematic diagram of the stacking machine according to an embodiment of this application;

[0022] Figure 4 This is the fourth schematic diagram of the stacking machine in the embodiments of this application.

[0023] Icons: 100-Stacking platform; 101-Alignment platform; 102-First bearing surface; 103-First positioning pin; 104-Second bearing surface; 105-First lifting cylinder; 106-First positioning plate; 107-First guide shaft; 108-First conveying assembly; 109-Pressure plate assembly; 110-Pressure plate cylinder; 111-Pressure plate; 112-Lifting mechanism; 113-Blocking part; 114-Telescopic drive; 115-Inlet sensor; 116-Position sensor; 117-Outlet sensor; 118-Conveyor belt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Existing stacking machines cannot achieve precise positioning of the assembled pieces during the stacking process, which can easily lead to misalignment between the two assembled pieces and ultimately misalignment during pressing, resulting in a significant decrease in production yield and an increase in production costs.

[0029] To address the aforementioned technical problems, this application provides a stacking machine.

[0030] Reference Figure 1 , Figure 2 As shown in the embodiment of this application, the stacking machine includes a stacking platform 100 and an aligning platform 101 arranged at intervals. The stacking platform 100 has a horizontal first bearing surface 102, on which a first assembly piece is placed. A first positioning pin 103 is inserted into the stacking platform 100. The first positioning pin 103 is driven to move vertically and can be inserted into a first positioning hole on the first assembly piece. The aligning platform 101 has a horizontal second bearing surface 104, on which a second assembly piece is placed. A second positioning pin is inserted into the aligning platform 101. The second positioning pin is driven to move vertically and can be inserted into a second positioning hole on the second assembly piece. A transfer mechanism is provided above the aligning platform 101. The transfer mechanism picks up the second assembly piece and places it on the first assembly piece, and moves downward to generate pressing pressure so that the first assembly piece and the second assembly piece are pressed together. Both the first assembly piece and the second assembly piece are ceramic green sheets.

[0031] It should be noted that the stacking machine provided in this application aims to solve the problems in the prior art where the ceramic assembly sheets cannot be accurately positioned, are prone to displacement and misalignment during pressing, resulting in a decrease in production yield.

[0032] The stacking machine includes two spaced-apart platforms: a stacking platform 100 and an aligning platform 101. The stacking platform 100 has a horizontal first bearing surface 102 for placing the first assembled piece, and a first positioning pin 103 is inserted thereon. The positioning pin can move vertically under drive and is inserted into a first positioning hole on the first assembled piece to achieve precise positioning of the first assembled piece.

[0033] The alignment platform 101 has a horizontal second bearing surface 104 for placing the second assembly piece to be gripped. A second positioning pin is also inserted on it, which can be driven to move up and down and be inserted into the second positioning hole on the second assembly piece to achieve accurate positioning of the second assembly piece.

[0034] Furthermore, a transfer mechanism is located above the stacking platform 101. It should be noted that this transfer mechanism is also located above the stacking platform 100. This mechanism can pick up the pre-positioned second assembly piece and accurately place it on top of the first assembly piece on the stacking platform 100. The transfer mechanism then moves downwards and applies pressure to the second assembly piece, ensuring stable and precise pressing of the two assembly pieces with the assistance of positioning pins. Through this structural design, the stacking machine effectively improves the positioning accuracy during the ceramic assembly piece stacking process, reduces offset and misalignment, thereby increasing production yield and reducing production costs.

[0035] For example, the transfer mechanism includes a high-precision moving guide rail, a high-precision lifting drive, and a gripping suction cup. The moving guide rail can drive the lifting drive to move horizontally, allowing the lifting drive to switch between moving above the stacking platform 100 and the aligning platform 101. The lifting drive can control the gripping suction cup to move vertically. It should be noted that the gripping suction cup is used to adsorb the second assembled piece. Specifically, when the moving guide rail controls the gripping suction cup to move directly above the aligning platform, the center projection of the gripping suction cup coincides with the geometric center of the stacking platform 100. At this point, it is ensured that the projections of the second assembled piece and the first assembled piece are completely aligned.

[0036] The lifting drive moves the gripping suction cup downwards, enabling the second assembly piece to be precisely pressed together with the second assembly piece.

[0037] Preferably, when the second assembly piece is pressed together with the first assembly piece, the first positioning pin 103 remains inserted in the first positioning hole, effectively preventing the first assembly piece from shifting under pressure.

[0038] The technical effects that the embodiments of this application can produce are as follows:

[0039] This embodiment of the application achieves precise positioning of the first and second assembled pieces by setting up a stacking platform 100 with positioning pins and an alignment platform 101, effectively avoiding the problem of misalignment of the assembled pieces during the stacking process. The transfer mechanism smoothly places the precisely positioned second assembled piece on the first assembled piece and applies pressure to ensure accurate pressing, greatly improving the stacking accuracy and stability. This design of this embodiment not only reduces product defects caused by misalignment and significantly improves production yield, but also reduces the additional costs caused by increased scrap, providing a reliable guarantee for the efficient and high-quality production of ceramic assembled pieces.

[0040] Reference Figure 2 , Figure 4 As shown, in one optional implementation, when the second assembly piece is placed on the first assembly piece, the height of the first positioning pin 103 protruding from the first bearing surface 102 is greater than the thickness of the first assembly piece; the first positioning pin 103 can pass through the first positioning hole in the vertical direction and be inserted into the second positioning hole.

[0041] It should be noted that when the second assembly piece is stacked on the first assembly piece, the height of the first positioning pin 103 protruding from the first bearing surface 102 of the stacking platform 100 is greater than the thickness of the first assembly piece. This allows the first positioning pin 103 to pass through the first positioning hole on the first assembly piece in the vertical direction and further insert into the second positioning hole on the second assembly piece. This achieves synchronous and precise positioning and limiting of the upper and lower assembly pieces, effectively preventing offset or misalignment caused by unstable positioning during the stacking process.

[0042] This structural design in the embodiments of this application not only enhances the alignment accuracy between the two assembled pieces during the stacking process, but also effectively prevents the offset or misalignment caused by the unstable positioning of a single layer, avoids the offset between the first and second assembled pieces during the pressing process, and effectively improves the overall stacking quality and production yield.

[0043] Reference Figure 2 , Figure 4 As shown, in one optional implementation, a first lifting cylinder 105 is provided below the stacking platform 100, a first positioning plate 106 is provided horizontally at the drive end of the first lifting cylinder 105, a first guide hole is provided on the first positioning plate 106, and a first guide shaft 107 is provided on the stacking platform 100 that passes through the first guide hole in the vertical direction; a first positioning pin 103 is provided on the first positioning plate 106.

[0044] And / or, a second lifting cylinder is provided below the alignment platform 101, the driving end of the second lifting cylinder is provided with a horizontal second positioning plate, the second positioning plate is provided with a second guide hole, and the alignment platform 101 is provided with a second guide shaft that passes through the second guide hole in the vertical direction; a second positioning pin is provided on the second positioning plate.

[0045] In this embodiment, a first lifting cylinder 105 is provided below the stacking platform 100 to drive the first positioning plate 106 to move vertically. Precise guidance is achieved through the cooperation of the first guide shaft 107 and the first guide hole, ensuring that the first positioning pin 103 maintains a stable and accurate movement trajectory during lifting. Similarly, a second lifting cylinder and a second positioning plate are provided below the alignment platform 101 to move the second positioning pin up and down, ensuring its positioning accuracy when inserted into or detached from the second assembled piece. This structural design not only improves the stability and repeatability of the positioning pin's movement but also effectively guarantees the alignment accuracy of the first and second assembled pieces during the stacking process, thereby further improving the stacking quality and production yield.

[0046] Reference Figure 2 , Figure 4 As shown, as an optional implementation, there are multiple first positioning pins 103 arranged at intervals on the stacking platform 100; there are multiple second positioning pins arranged at intervals on the aligning platform 101.

[0047] It should be noted that multiple first positioning pins 103 are arranged at intervals on the stacking platform 100, enabling simultaneous positioning of the first assembled piece from multiple positions, thus improving its placement stability and positioning accuracy. Similarly, multiple second positioning pins are also arranged at intervals on the alignment platform 101, thereby achieving multi-point precise positioning of the second assembled piece. The layout design of multiple positioning pins effectively prevents the assembled piece from shifting or tilting during gripping, transfer, and pressing, further improving the overall alignment accuracy and production reliability of the stacking process.

[0048] For example, there are four first positioning pins 103, which are respectively disposed at the four corners of the rectangular stacking platform 100. There are four second positioning pins, which are respectively disposed at the four corners of the rectangular alignment platform 101.

[0049] Reference Figure 3 As shown, as an optional implementation, it also includes a first conveying component 108 and a second conveying component; the first conveying component 108 is used to convey a first assembled piece to the stacking platform 100; the second conveying component is used to convey a second assembled piece to the aligning platform 101; the conveying direction of the first conveying component 108 and the conveying direction of the second conveying component intersect on a horizontal plane.

[0050] It should be noted that the first conveying component 108 and the second conveying component are used to automatically convey the first assembled piece and the second assembled piece to the stacking platform 100 and the alignment platform 101, respectively, thereby improving the automation level and production efficiency of the equipment. The conveying direction of the first conveying component 108 and the conveying direction of the second conveying component intersect on the horizontal plane, so that the two types of assembled pieces can be conveyed independently in different directions and accurately converge on their respective positioning platforms, further ensuring the alignment accuracy and process stability of the two assembled pieces in the subsequent stacking process.

[0051] For example, the conveying direction of the first conveying component 108 intersects the conveying direction of the second conveying component perpendicularly in the horizontal plane.

[0052] Reference Figure 1 , Figure 3 As shown, as an optional implementation, it also includes a pressure plate assembly 109; the pressure plate assembly 109 includes a pressure plate cylinder 110 and a pressure plate 111; the pressure plate 111 is horizontally arranged and its height is higher than that of the stacking platform 100; the pressure plate cylinder 110 can drive the pressure plate 111 to move along the conveying direction of the first conveying assembly 108, so that the pressure plate 111 and the projection of the stacking platform 100 at least partially overlap; a lifting mechanism 112 is provided below the stacking platform 100, the lifting mechanism 112 drives the stacking platform 100 to rise, and the pressure plate 111 abuts against the first assembled piece.

[0053] There are two pressure plate assemblies 109, which are respectively arranged on opposite sides of the stacking platform 100.

[0054] It should be noted that when the stacking platform 100 rises under the drive of the lower lifting mechanism 112, the pressure plate 111 can abut against the first assembled piece placed on it, thereby limiting and leveling the assembled piece, ensuring that the first assembled piece is tightly attached to the stacking platform 100, which helps to improve positioning accuracy. The two pressure plate assemblies 109 are respectively set on opposite sides of the stacking platform 100, which can achieve bidirectional stable pressing of the assembled piece, further preventing the assembled piece from shifting or warping during the stacking process, effectively improving the stacking quality and production stability.

[0055] Reference Figure 1 , Figure 3 As shown, as an optional implementation, it also includes a positioning blocking mechanism; the positioning blocking mechanism includes a blocking part 113 disposed on the conveying path of the first conveying assembly 108 and a telescopic drive 114 for driving the blocking part 113 to move vertically; the blocking part 113 is located on one side of the stacking platform 100; when the first conveying assembly 108 conveys the first assembly piece to the stacking platform 100, the telescopic drive 114 pushes the blocking part 113 to rise, the blocking part 113 abuts against the side of the first assembly piece, the first assembly piece stops moving, and the first positioning pin 103 corresponds to the position of the first positioning hole.

[0056] It should be noted that the mechanism includes a blocking part 113 disposed on the conveying path of the first conveying assembly 108 and a telescopic drive 114 that drives its vertical movement. The blocking part 113 is located on one side of the stacking platform 100. When the first conveying assembly 108 conveys the first assembled piece to the stacking platform 100, the telescopic drive 114 pushes the blocking part 113 upward, causing it to abut against the side of the first assembled piece, thereby preventing it from continuing to move forward and ensuring that the first assembled piece is accurately positioned, so that the first positioning pin 103 can be accurately aligned and inserted into the first positioning hole on the first assembled piece. This structure effectively improves the positioning accuracy of the assembled piece at the end of the conveying process, providing a reliable guarantee for subsequent accurate stacking.

[0057] Reference Figure 3 As shown, in one optional implementation, the first conveying assembly 108 is provided with an inlet sensor 115, a position sensor 116 and an outlet sensor 117 along the conveying path; the inlet sensor 115, the position sensor 116 and the outlet sensor 117 are all used to detect the position of the first assembled piece.

[0058] It should be noted that the inlet sensor 115 is used to identify whether the first assembled piece has entered the conveying area, the positioning sensor 116 is used to confirm whether the first assembled piece has accurately reached the preset position of the stacking platform 100, and the outlet sensor 117 is used to determine whether the assembled piece has completed conveying and left the area. Through the coordinated operation of the above sensors, precise monitoring of the entire conveying process of the first assembled piece can be achieved, ensuring its accurate positioning and providing reliable positional assurance for subsequent positioning pin insertion and stacking processes, thereby improving the automation level and operational stability of the equipment.

[0059] Reference Figure 3 As shown, in one optional implementation, the first conveying assembly 108 includes two parallel and spaced conveyor belts 118. The distance between the two conveyor belts 118 is less than the width of the first assembled piece and greater than the width of the stacking platform 100. The stacking platform 100 is disposed between the two conveyor belts 118. When the first assembled piece is moved above the stacking platform 100, the stacking platform 100 is driven to rise so that the first assembled piece can be placed on the stacking platform 100.

[0060] When the first assembled piece is conveyed above the stacking platform 100, the stacking platform 100 can be driven upward to receive the first assembled piece and complete the placement action. This structural design not only ensures the stability of the assembled piece during the conveying process, but also achieves a precise and smooth handover between the assembled piece and the stacking platform 100, which helps to improve the overall stacking accuracy and the reliability of equipment operation.

[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stacking machine, characterized in that, The system includes a stacking platform (100) and an aligning platform (101) spaced apart. The stacking platform (100) has a horizontal first bearing surface (102) on which a first assembly piece is placed. A first positioning pin (103) is inserted into the stacking platform (100). The first positioning pin (103) is driven to move vertically and can be inserted into a first positioning hole on the first assembly piece. The aligning platform (101) has a horizontal second bearing surface (104) on which a second assembly piece is placed. A second positioning pin is inserted into the aligning platform (101). The second positioning pin is driven to move vertically and can be inserted into a second positioning hole on the second assembly piece. A transfer mechanism is provided above the aligning platform (101). The transfer mechanism picks up the second assembly piece and places it on the first assembly piece, and generates pressing pressure to press the first assembly piece and the second assembly piece together.

2. The stacking machine according to claim 1, characterized in that, When the second assembly piece is placed on the first assembly piece, the height of the first positioning pin (103) protruding from the first bearing surface (102) is greater than the thickness of the first assembly piece; the first positioning pin (103) can pass through the first positioning hole in the vertical direction and be inserted into the second positioning hole.

3. The stacking machine according to claim 1, characterized in that, Below the stacking platform (100) is a first lifting cylinder (105), and the driving end of the first lifting cylinder (105) is provided with a first positioning plate (106) horizontally. The first positioning plate (106) is provided with a first guide hole, and the stacking platform (100) is provided with a first guide shaft (107) that passes through the first guide hole in the vertical direction; the first positioning pin (103) is provided on the first positioning plate (106). And / or, a second lifting cylinder is provided below the alignment platform (101), the driving end of the second lifting cylinder is provided with a horizontal second positioning plate, the second positioning plate is provided with a second guide hole, the alignment platform (101) is provided with a second guide shaft that passes through the second guide hole in the vertical direction; the second positioning pin is provided on the second positioning plate.

4. The stacking machine according to claim 1, characterized in that, There are multiple first positioning pins (103) arranged at intervals on the stacking platform (100); and / or, there are multiple second positioning pins arranged at intervals on the row platform (101).

5. The stacking machine according to claim 1, characterized in that, It also includes a first conveying component (108) and a second conveying component; the first conveying component (108) is used to convey a first assembled piece to the stacking platform (100); the second conveying component is used to convey a second assembled piece to the aligning platform (101); the conveying direction of the first conveying component (108) and the conveying direction of the second conveying component intersect on a horizontal plane.

6. The stacking machine according to claim 5, characterized in that, It also includes a pressure plate assembly (109); the pressure plate assembly (109) includes a pressure plate cylinder (110) and a pressure plate (111); the pressure plate (111) is horizontally arranged and its height is higher than that of the stacking platform (100); the pressure plate cylinder (110) can drive the pressure plate (111) to move along the conveying direction of the first conveying assembly (108), so that the projection of the pressure plate (111) and the stacking platform (100) at least partially overlaps; a lifting mechanism (112) is provided below the stacking platform (100), the lifting mechanism (112) drives the stacking platform (100) to rise, and the pressure plate (111) abuts against the first assembled piece.

7. The stacking machine according to claim 6, characterized in that, There are two pressure plate assemblies (109), which are respectively arranged on opposite sides of the stacking platform (100).

8. The stacking machine according to any one of claims 5-7, characterized in that, It also includes a positioning blocking mechanism; the positioning blocking mechanism includes a blocking part (113) disposed on the conveying path of the first conveying component (108) and a telescopic drive (114) for driving the blocking part (113) to move vertically; the blocking part (113) is located on one side of the stacking platform (100); when the first conveying component (108) conveys the first assembly piece to the stacking platform (100), the telescopic drive (114) pushes the blocking part (113) to rise, the blocking part (113) abuts against the side of the first assembly piece, the first assembly piece stops moving, and the first positioning pin (103) corresponds to the position of the first positioning hole.

9. The stacking machine according to any one of claims 5-7, characterized in that, The first conveying assembly (108) is provided with an inlet sensor (115), a position sensor (116), and an outlet sensor (117) along the conveying path; the inlet sensor (115), the position sensor (116), and the outlet sensor (117) are all used to detect the position of the first assembly piece.

10. The stacking machine according to any one of claims 5-7, characterized in that, The first conveying assembly (108) includes two parallel and spaced conveyor belts (118). The distance between the two conveyor belts (118) is less than the width of the first assembled piece and greater than the width of the stacking platform (100). The stacking platform (100) is disposed between the two conveyor belts (118). When the first assembled piece is moved above the stacking platform (100), the stacking platform (100) is driven to rise so that the first assembled piece can be placed on the stacking platform (100).