Double-station tinning machine

Abstract

A double-station tinning machine comprises a working platform, the working platform is provided with a discharging unit, a feeding unit, a suction nozzle bin unit, a bottom visual detection unit, a preheating and impurity removing unit, a soldering flux unit, a side view unit, a gold and tin removing pot unit and a tinning tin pot unit, and all the functional units are linearly arranged according to the tinning technological process. Wherein the rear-section functional unit gradually rotates and gets close to the front section of the flow to form a compact structure; an X-direction and Y-direction transplanting module is arranged above the working platform, an X-direction moving mechanism and a Y-direction moving mechanism of the X-direction and Y-direction transplanting module are in T-shaped connection, two groups of lifting units are symmetrically arranged, and an overturning unit and a rotary suction nozzle unit are mounted at the tail end of the X-direction and Y-direction transplanting module, so that double-station synchronous operation is realized; according to the utility model, the material flow path is shortened through the U-shaped layout, the production efficiency and the processing precision are remarkably improved by combining the double-station collaborative operation and the three-dimensional visual inspection, and the tin coating machine is suitable for the tin coating process of high-reliability electronic components.

Description

Technical Field

[0001] This utility model relates to the field of electronic component processing technology, and in particular to a dual-station tinning machine. Background Technology

[0002] In the manufacturing process of electronic components, the surface treatment of leads or solder ends is a critical step to ensure soldering reliability. Traditional tinning processes are usually completed manually or with single-station automated equipment, which suffers from low efficiency, poor consistency, and unstable temperature control, making it difficult to meet the demands of modern high-density, high-precision electronic packaging. At the same time, traditional tinning equipment has a large layout length, requiring a large amount of space and affecting the motion stability of the moving mechanism. Finally, most equipment only uses single-view inspection, which cannot accurately measure key parameters such as lead height and solder layer thickness, easily leading to missed defects.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a dual-station tinning machine to solve the above problems.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0005] To overcome the shortcomings of the prior art, the present invention discloses a dual-station tinning machine that improves production efficiency and processing accuracy and is suitable for the tinning process of high-reliability electronic components.

[0006] This utility model discloses a dual-station tinning machine, including a work platform as a support mechanism, and the work platform is equipped with:

[0007] The unloading unit is used for transferring and placing the processed materials.

[0008] The feeding unit is used to classify, identify, and locate scattered materials;

[0009] The nozzle compartment unit is used for storing and replacing nozzles;

[0010] The bottom vision inspection unit is used to calibrate the position of the material's lower pin plane;

[0011] The preheating and impurity removal unit is used to preheat the material and remove impurities.

[0012] Flux unit, used to apply flux to the material leads;

[0013] The side-view unit collects material pin height data to ensure consistent tinning thickness.

[0014] The gold-plating pot unit is used to remove the gold layer from the surface of the material leads;

[0015] The tin-plating pot unit is used to complete the tin plating of material leads;

[0016] Each functional unit is arranged linearly according to the tinning process flow. The functional units in the later stages gradually move towards the front of the process flow, such as a folding or U-shaped layout, forming a compact structure, reducing the reciprocating stroke of the XY direction transfer module, and thus improving work efficiency.

[0017] An XY-axis transplanting module is provided above the work platform. The XY-axis transplanting module includes an X-axis moving mechanism fixedly connected to the work platform. The moving end of the X-axis moving mechanism is connected to the Y-axis moving mechanism in a T-shape. Its moving end is connected to the mounting plate. The mounting plate is provided with a top vision detection unit and two sets of symmetrical lifting units. The end of the lifting unit is provided with a flipping unit. The moving end of the flipping unit is provided with a rotating suction nozzle unit to adapt to the gripping of different materials.

[0018] The bottom vision inspection unit, preheating and impurity removal unit, flux unit, side inspection unit, gold removal pot unit, and tinning pot unit are all equipped with dual workstations that can simultaneously dock with two rotary nozzle units, improving processing efficiency.

[0019] Preferred technical solution: The unloading unit, feeding unit, nozzle bin unit, bottom vision inspection unit, preheating and impurity removal unit, flux unit, side viewing unit, gold removal pot unit and tinning pot unit are arranged sequentially along a U-shaped trajectory on the working platform.

[0020] Preferred technical solution: The unloading unit includes an unloading tray with a material sorting grid for easy material classification and storage. The loading unit includes a loading tray and a first vision recognition module above it. The first vision recognition module performs contour and coordinate recognition on the material on the loading tray to achieve high-precision loading of scattered materials.

[0021] Preferred technical solution: The nozzle compartment unit is equipped with a matrix-type slot for storing nozzles. The upper end of the matrix-type slot is equipped with an openable and closable card plate for locking the nozzles, which facilitates the replacement of the nozzles.

[0022] Preferred technical solution: Both working stations of the bottom vision inspection unit are equipped with a lower vision inspection camera in the vertical direction. The front end of the lower vision inspection camera is equipped with a lower supplementary light source for visual inspection of the material below.

[0023] Preferred technical solution: Both the preheating and impurity removal units are equipped with hot air nozzles in their dual working stations, which are used to preheat the material with hot air and remove impurities from the material surface using hot air knives.

[0024] Preferred technical solution: The flux unit includes an overflow tank and a return tank separated by a partition, which are used to apply flux to the material leads. Both the overflow tank and the return tank are equipped with liftable guide tubes. The top of the guide tube is equipped with a baffle, and the two sides of the lower end of the baffle are equipped with guide cuts. The overflow tank can accommodate two rotary nozzle units to apply flux to the material leads at the same time.

[0025] Preferred technical solution: Both working stations of the side-viewing unit are equipped with side-viewing cameras in the same horizontal direction to collect lateral height data of material pins.

[0026] Preferred technical solution: The X-axis moving mechanism, the Y-axis moving mechanism and the lifting unit are all equipped with grating rulers.

[0027] Preferred technical solution: The rotary suction nozzle unit includes a negative pressure suction nozzle and a rotary drive motor.

[0028] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0029] 1) The working units of the tinning machine are laid out along a U-shaped line according to the working sequence, which reduces the layout length and realizes the process loop, reduces the round trip during tinning operation, and improves the working efficiency and stability.

[0030] 2) In addition to the top and bottom visual inspection, a side-view unit is added to monitor the pin height in real time and ensure the consistency of the solder coating thickness.

[0031] 3) The dual-station synchronous operation design increases work efficiency.

[0032] 4) Add a first visual recognition module to classify and identify scattered materials based on their outlines and pinpoint their locations.

[0033] 5) The separate structure of the overflow tank and return tank, together with the lifting and lowering of the guide pipe, controls the flow of flux, reduces the generation of air bubbles in the flux, and improves the flexibility of flux flow rate control. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a dual-station tinning machine according to the present invention;

[0036] Figure 2 This is a schematic diagram of the XY-axis transplanting module in this utility model;

[0037] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0038] Figure 4 This is a top view of the working platform in this utility model;

[0039] Figure 5 This is a schematic diagram of the flux unit in this utility model;

[0040] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle.

[0041] In the attached diagrams above, 100 is the working platform; 1 is the unloading unit; 2 is the loading unit; 3 is the nozzle compartment unit; 4 is the bottom vision inspection unit; 5 is the preheating and impurity removal unit; 6 is the flux unit; 6a is the overflow trough; 6b is the return trough; 6c is the partition plate; 7 is the side viewing unit; 8 is the gold removal pot unit; 9 is the tinning pot unit; 10 is the XY direction transfer module; 10a is the X-axis moving mechanism; 10b is the Y-axis moving mechanism; 10c is the mounting plate; 11 is the lifting unit; 12 is the flipping unit; 13 is the rotating nozzle unit; 13a is the negative pressure nozzle; 13b is the rotary drive motor; 14 is the guide pipe; 14a is the baffle plate; 14b is the guide cut; and 15 is the top vision inspection unit. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the description of embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0044] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0045] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0046] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Example:

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this utility model discloses a dual-station tinning machine, including a work platform 100. Along a U-shaped trajectory on the work platform 100 are sequentially arranged a feeding unit 1, a loading unit 2, a suction nozzle unit 3, a bottom visual inspection unit 4, a preheating and impurity removal unit 5, a flux unit 6, a side-viewing unit 7, a gold-removing tin pot unit 8, and a tinning pot unit 9. Above the work platform 100 are an XY-direction transfer module 10, a lifting unit 11, a tilting unit 12, and a rotating suction nozzle unit 13. The U-shaped layout significantly shortens the material flow path and achieves a closed-loop process. It should be noted that in this embodiment, the functional units are arranged in a U-shape, but in other embodiments, the functional units can also adopt other rotary arrangements. The main components of this utility model will be described in detail below:

[0050] The work platform 100 adopts a steel frame structure, which has high stability and load-bearing capacity.

[0051] The unloading unit 1 includes an unloading tray with a sorting grid for classifying and storing the processed materials.

[0052] The feeding unit 2 includes a feeding tray and a first vision recognition module 2a above it, which can perform contour recognition and coordinate calibration of scattered materials to achieve high-precision feeding.

[0053] The nozzle compartment unit 3 is equipped with a matrix-style slot for storing nozzles. The upper end of the matrix-style slot is equipped with an openable and closable card plate for easy storage and replacement of nozzles of different sizes.

[0054] Both workstations of the bottom vision inspection unit 4 are equipped with a lower vision inspection camera in the vertical direction. The front end of the lower vision inspection camera is equipped with a lower supplementary light source for calibrating the position of the material pins.

[0055] The preheating and impurity removal unit 5 is equipped with hot air nozzles in both working stations, which are used to preheat the material with hot air and remove impurities from the surface of the material using hot air knives.

[0056] The flux unit 6 includes an overflow tank 6a and a return tank 6b separated by a partition 6c. Both the overflow tank 6a and the return tank 6b are equipped with liftable guide pipes 14. The top of the guide pipe 14 is equipped with a baffle 14a, and the two sides of the lower end of the baffle 14a are equipped with guide slits 14b. The overflow tank 6a can accommodate two rotating nozzle units 13 to apply flux to the material leads at the same time, control the flux flow, and reduce air bubbles.

[0057] Both workstations of the side-viewing unit 7 are equipped with side-viewing cameras along the same horizontal direction to monitor the pin height in real time and ensure the consistency of tin plating thickness.

[0058] The gold-removing pot unit 8 is used to remove the gold layer from the surface of the material pins.

[0059] The tin-plating pot unit 9 is used to complete the tin plating of material leads.

[0060] The XY-direction transplanting module 10 includes an X-direction moving mechanism 10a and a Y-direction moving mechanism 10b, which are connected in a T-shape. The end mounting plate 10c is equipped with a top vision inspection unit 15 and two sets of symmetrical lifting units 11. The dual-station synchronous operation is achieved through the flipping unit 12 and the rotating suction nozzle unit 13. Each functional unit is designed as a dual-workstation, which can simultaneously connect to two rotating suction nozzle units 13, significantly improving efficiency.

[0061] The bottom vision inspection unit 4, the preheating and impurity removal unit 5, the flux unit 6, the side inspection unit 7, the gold removal pot unit 8, and the tinning pot unit 9 are all equipped with dual working stations that can simultaneously dock with two rotary suction nozzle units 13 to improve processing efficiency.

[0062] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the usage method and principle of this utility model are described below:

[0063] Feeding and Identification: After the scattered materials are classified by the first vision recognition module 2a of the feeding unit 2, the coordinate data is uploaded to the control system;

[0064] Grasping and Inspection: The XY direction transfer module 10 drives the rotary suction unit 13 to replace the required negative pressure suction nozzle 13a at the suction nozzle chamber unit 3, and grabs the material through the rotary suction unit 13. The bottom vision inspection unit 4 then fine-tunes the position of the material pins.

[0065] Preheating and impurity removal: The hot air nozzles of the preheating and impurity removal unit 5 preheat the material and remove surface oxides;

[0066] Flux application: The overflow tank 6a of flux unit 6 controls the flow of flux through the guide pipe 14. The flux evenly covers the material pins through the overflow tank 6a, and the application is completed synchronously at both stations.

[0067] Side-view detection: The side-view unit 7 collects pin height data and feeds it back to the control system in real time to adjust the soldering parameters;

[0068] Gold removal and tinning: After the gold layer is removed by the gold removal tin pot unit 8, the material is transferred to the tinning tin pot unit 9 to complete the tinning process.

[0069] Material feeding: The processed materials are stored in the sorting grid of feeding unit 1 according to their type.

[0070] like Figure 1 , Figure 2 and Figure 3 As shown, the X-axis moving mechanism 10a, the Y-axis moving mechanism 10b, and the lifting unit 11 are all equipped with grating rulers to improve motion accuracy.

[0071] like Figure 1 , Figure 2 and Figure 3 As shown, the rotary suction unit 13 includes a negative pressure suction nozzle 13a and a rotary drive motor 13b, which uses negative pressure to adsorb and grab materials.

[0072] This embodiment solves the problems of low efficiency and insufficient accuracy of traditional tinning equipment by using a U-shaped layout, dual-station collaboration, and multi-dimensional detection technology.

[0073] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station tinning machine, comprising a work platform (100), characterized in that: The work platform (100) is equipped with a feeding unit (1), a loading unit (2), a nozzle chamber unit (3), a bottom vision inspection unit (4), a preheating and impurity removal unit (5), a flux unit (6), a side viewing unit (7), a gold removal pot unit (8), and a tinning pot unit (9). Each functional unit is arranged linearly according to the tinning process flow, with the later functional units gradually moving towards the earlier part of the process. An XY transplanting module (10) is provided above the working platform (100). The XY transplanting module (10) includes an X-axis moving mechanism (10a) fixedly connected to the working platform (100). The moving end of the X-axis moving mechanism (10a) is connected to the Y-axis moving mechanism (10b) in a T-shape. Its moving end is connected to the mounting plate (10c). The mounting plate (10c) is provided with a top visual inspection unit (15) and two sets of symmetrical lifting units (11). The end of the lifting unit (11) is provided with a flipping unit (12). The moving end of the flipping unit (12) is provided with a rotating suction nozzle unit (13). The bottom visual inspection unit (4), preheating and impurity removal unit (5), flux unit (6), side viewing unit (7), gold removal pot unit (8) and tinning pot unit (9) are all equipped with dual working stations that can simultaneously dock with two of the rotary nozzle units (13).

2. A two-station tinning machine according to claim 1, characterized in that: The feeding unit (1), feeding unit (2), suction nozzle unit (3), bottom visual inspection unit (4), preheating and impurity removal unit (5), flux unit (6), side viewing unit (7), gold removal pot unit (8) and tinning pot unit (9) are arranged sequentially along a U-shaped trajectory on the working platform (100).

3. A two-station tinning machine according to claim 1, characterized in that: The unloading unit (1) includes an unloading tray with a material distribution grid; the loading unit (2) includes a loading tray and a first visual recognition module (2a) above it.

4. The double station tinning machine of claim 1, wherein: The nozzle compartment unit (3) is provided with a matrix slot for storing nozzles, and the upper end of the matrix slot is provided with an openable and closable card plate.

5. The double station tinning machine of claim 1 wherein: The bottom vision inspection unit (4) has two working stations, both equipped with a lower vision inspection camera in the vertical direction, and the front end of the lower vision inspection camera is equipped with a lower supplementary light source.

6. The double station tinning machine of claim 1, wherein: The preheating and impurity removal unit (5) is equipped with hot air nozzles in both of its two working stations.

7. The double station tinning machine of claim 1, wherein: The flux unit (6) includes an overflow tank (6a) and a return tank (6b) separated by a partition (6c). Both the overflow tank (6a) and the return tank (6b) are provided with liftable guide tubes (14). The top of the guide tube (14) is provided with a baffle (14a), and the two sides of the lower end of the baffle (14a) are provided with guide cuts (14b). The overflow tank (6a) can accommodate two rotary nozzle units (13) to apply flux to the material leads at the same time.

8. The double station tinning machine of claim 1, wherein: The two working stations of the side-view unit (7) are equipped with side-view cameras in the same horizontal direction.

9. The double station broaching machine of claim 1 wherein: The X-axis moving mechanism (10a), Y-axis moving mechanism (10b) and lifting unit (11) are all equipped with grating rulers.

10. The double station tinning machine of claim 1, wherein: The rotary nozzle unit (13) includes a negative pressure nozzle (13a) and a rotary drive motor (13b).

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