Novel tinning machine

Abstract

A novel tinning machine comprises an operation platform, and a mimicry transplanting module, a visual feeding module, a scaling powder coating module, a gold removing module, a hot air knife module, a tinning module, a suction nozzle bin module and a reinspection module are integrated on the operation platform. The mimicry transplanting module is used for grabbing, transplanting and posture adjustment of workpieces and supports three-dimensional translation and double-shaft rotation freedom degrees. The visual feeding module carries a deep learning algorithm and can recognize the contour and size of a workpiece and generate positioning coordinates. According to the novel tinning machine provided by the utility model, the high-efficiency, high-precision and high-flexibility processing capability is realized through the technical fusion of automation, intellectualization and modularization, the novel tinning machine is particularly suitable for the flexible production requirements of multiple varieties and small batches in the field of electronic manufacturing, meanwhile, the comprehensive cost is remarkably reduced, and the novel tinning machine is an innovative and upgraded scheme of the traditional tinning process.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface treatment equipment technical field, especially in a novel tin lining machine. BACKGROUND

[0002] The tin lining machine is a kind of equipment for the surface coating of electronic components with metal tin, mainly used to improve the conductivity and corrosion resistance of components.The tin lining machine can be divided into two types of full-automatic and semi-automatic, and is widely used in the fields of electronics, electrical appliances, communication, instruments, instruments and meters.

[0003] At present, the traditional tin lining machine has scattered function area layout, large equipment volume and installation space occupation;poor processing flexibility, it is difficult to process different types of workpieces in one process, and the compatibility is poor;it relies on manual positioning of workpieces, and the efficiency is low and error-prone;gold removal, tin lining and other process parameters are fixed, and cannot be dynamically adjusted, resulting in low yield;the processing action flexibility is insufficient, so that the processing precision and yield of workpieces cannot be improved.

[0004] Therefore, in view of the deficiencies of the prior art, it is necessary to design a novel tin lining machine to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical scheme of the utility model, and for the convenience of understanding by the skilled in the art, and the above content cannot be considered as known by the skilled in the art only because the above content is described in the background of the utility model. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the deficiencies in the prior art, the utility model aims at disclosing a novel tin lining machine, which solves the technical problems of low efficiency, poor compatibility and uncontrollable quality of traditional equipment.

[0007] The utility model discloses a novel tin lining machine, which comprises a work platform, and the work platform is integrated with a mimic transplanted module, a visual feeding module, a soldering flux coating module, a gold removal module, a hot air knife module, a tin lining module, a suction nozzle warehouse module and a reinspection module.

[0008] The mimic transplanted module is used for grabbing, transplanting and posture adjustment of workpieces, supports three-dimensional translation and double-axis rotation freedom, and is composed of:

[0009] The XYZ linear motion mechanism is sequentially orthogonally connected by X-direction linear motion module, Y-direction linear motion module and Z-direction linear motion module to provide three-dimensional translation freedom;

[0010] A first motor is fixed to the end of the XYZ linear motion mechanism, and the rotation axis direction is parallel to one of the X linear motion module and the Y linear motion module; a first speed reducer is connected to the output end of the first motor; a second motor is fixed to the end of the first speed reducer, and the rotation axis direction is perpendicular to the rotation axis direction of the first motor; a negative pressure suction nozzle mounting seat is fixed to the end of the second motor, and a pressure sensor is arranged thereon and detachably connected with the negative pressure suction nozzle. The first motor rotates horizontally through the first speed reducer, and the second motor rotates vertically to realize the pitching and yawing of the negative pressure suction nozzle; the built-in pressure sensor monitors the contact state of the negative pressure suction nozzle and the workpiece.

[0011] Visual feeding module: for identification and positioning of workpieces.

[0012] Soldering flux coating module: for coating soldering flux on the surface of the workpiece to ensure the quality of tin plating.

[0013] Gold removal module: for reducing the gold content of the workpiece.

[0014] Hot air knife module: for heating the workpiece.

[0015] Tin plating module: for tin plating treatment of the workpiece.

[0016] Suction nozzle storage module: for storing and automatically replacing negative pressure suction nozzles of different specifications to adapt to different workpieces.

[0017] Reinspection module: for surface quality reinspection of finished workpieces to ensure that the tin plating quality meets the requirements.

[0018] Preferred technical solution: the visual feeding module comprises:

[0019] A mounting plate is fixed on the workbench.

[0020] A feeding tray made of transparent material is arranged on the mounting plate, and the surface thereof is arrayed and separated into a plurality of unit cells along the X and Y axes for mixed loading of workpieces of different specifications.

[0021] A flat light source is arranged above the feeding tray to form uniform backlighting under the feeding tray and enhance the visual contrast.

[0022] An XY linear motion mechanism is arranged below the feeding tray.

[0023] A visual detection camera is connected to the end of the XY linear motion mechanism, the lens axis is perpendicular to the feeding tray, and a deep learning algorithm is carried to identify the contour, size and generate positioning coordinates of the workpiece.

[0024] Preferred technical solution: the mounting plate is further provided with an unqualified product collection groove and a finished product placement tray for storing unqualified workpieces and finished workpieces.

[0025] Preferably, the second motor is a hollow motor, the rotating shaft of the second motor is a hollow shaft, and the hollow shaft is connected with the vacuum pipeline and the negative pressure suction nozzle mounting seat at the front and rear ends respectively, so as to provide a negative pressure vacuum channel for the negative pressure suction nozzle mounting seat.

[0026] Preferably, a second speed reducer is arranged between the second motor and the negative pressure suction nozzle mounting seat, and the second speed reducer is a hollow speed reducer.

[0027] Preferably, the temperature and the wind speed of the hot air knife module can be independently adjusted to realize accurate adjustment of the workpiece heating process, and the hot air knife can be used to clean the impurities on the surface of the workpiece.

[0028] Preferably, the tin removal module and the tin coating module each include a tin pot and a scraping rod, and the scraping rod is controlled by the horizontal and lifting moving assembly to scrape off the oxide layer on the surface of the tin liquid.

[0029] Preferably, the suction nozzle warehouse module is provided with a locking mechanism for fixing negative pressure suction nozzles of different specifications, so as to realize automatic replacement of the negative pressure suction nozzles of different specifications in cooperation with the mimic transplanting module.

[0030] Preferably, the reinspection module includes a detection camera and a fill light arranged upwards along the Z-axis direction, and is used for surface quality reinspection of the finished workpiece.

[0031] The use method of the novel tin coating machine comprises the following steps:

[0032] Data import: import a three-dimensional model of a workpiece into a visual detection camera, and establish a feature point recognition model through a deep learning algorithm;

[0033] Path learning: the mimic transplanting module records the grabbing, tin immersion and obstacle avoidance track through artificial demonstration, and generates a mimic transplanting path;

[0034] Working operation:

[0035] S1, the workpieces are mixed and loaded in the unit cells of the feeding tray, and the flat light source is turned on to form uniform backlight;

[0036] S2, the visual detection camera scans the feeding tray through the XY linear motion mechanism, and identifies the workpiece type, size and positioning coordinates;

[0037] S3, the locking mechanism of the suction nozzle warehouse module is called according to the workpiece type, and the adaptive negative pressure suction nozzle is replaced;

[0038] S4, the mimic transplanting module grabs the workpiece according to the path, calls the corresponding process parameters according to the workpiece type, controls the flux coating module, the gold removal module, the hot air knife module, the tin coating module and the reinspection module to complete the gold removal, heating, tin coating and reinspection in cooperation with the mimic transplanting module

[0039] With the technical scheme, the utility model discloses the beneficial effects compared with prior art are:

[0040] (1) transparent loading tray combines the visual system of deep learning algorithm and carries out identification positioning, allows different specifications workpiece mix loading, does not need manual sorting, realizes the automation processing of small batch multi-species workpiece.

[0041] (2) the mimicry transplanting module utilizes the motion design of multiple degrees of freedom, can generate motion trajectory through teaching learning, combines visual positioning, and the tin-bushing skill of senior tin-bushing technical personnel is perfectly copied, and the efficiency and quality of tin-bushing are improved.

[0042] (3) multi-module integrated design reduces the space occupation of equipment, reduces the moving stroke of workpiece when processing simultaneously, improves processing efficiency, and is convenient for maintaining equipment.

[0043] (4) from workpiece identification, grabbing, flux application, gold removal, tin-bushing to reinspection, the whole process does not need manual intervention, reduces the dependence on manpower, and improves operation accuracy.

[0044] (5) reinspection module automatically detects tin-bushing surface quality, removes defective products, and realizes quality closed-loop management. BRIEF DESCRIPTION OF DRAWINGS

[0045] To more clearly illustrate the technical scheme in the specific embodiment of the utility model or prior art, the drawings needed in the specific embodiment or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0046] Figure 1 It is the appearance schematic view of a novel tin-bushing machine of the utility model;

[0047] Figure 2 It is the layout schematic view of a novel tin-bushing machine of the utility model;

[0048] Figure 3 It is the structure schematic view of the mimicry transplanting module in the utility model;

[0049] Figure 4 It is the structure schematic view of the visual loading module in the utility model;

[0050] Figure 5 It is the structure schematic view of the tin-bushing module in the utility model.

[0051] In the above drawings, 100, work platform; 1, mimicry transplanting module; 11, X linear motion module; 12, Y linear motion module; 13, Z linear motion module; 14, first motor; 15, first speed reducer; 16, second motor; 17, negative pressure suction nozzle mounting seat; 2, visual feeding module; 21, mounting plate; 22, feeding disc; 22a, unit cell; 23, flat light source; 24, XY linear motion mechanism; 25, visual inspection camera; 26, unqualified product collection groove; 27, finished product setting disc; 3, flux applicator module; 4, gold removal module; 5, hot air knife module; 6, tin soldering module; 7, suction nozzle warehouse module; 8, reinspection module; 9, negative pressure suction nozzle. DETAILED DESCRIPTION

[0052] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0053] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and their synonyms, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0055] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0056] Furthermore, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved", and "attached" should be interpreted in a broad manner. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal connection between two devices, elements, or components. For example, "attached" can be complete attachment or partial attachment. The specific meanings of the above terms in the present application can be understood by those skilled in the art according to specific circumstances.

[0057] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0058] Embodiment:

[0059] As shown in Figure 1 and Figure 2 , the present application discloses a novel tin-bushing machine, which comprises a work platform 100, and the work platform 100 is integrated with a mimicry transplanting module 1, a visual feeding module 2, a flux coating module 3, a gold removing module 4, a hot air knife module 5, a tin-bushing module 6, a suction nozzle warehouse module 7, and a re-inspection module 8. The main components of the present application will be described in detail as follows:

[0060] As shown in Figure 1 , Figure 2 and Figure 3 , the mimicry transplanting module 1 is responsible for the grasping and work movement of the workpiece, and the specific structure thereof comprises:

[0061] The XYZ linear motion mechanism is provided with three-dimensional translational freedom by sequentially and orthogonally connecting an X-direction linear motion module 11, a Y-direction linear motion module 12, and a Z-direction linear motion module 13, so as to ensure that the negative pressure suction nozzle 9 can be accurately positioned in a three-dimensional space.

[0062] The first motor 14 is fixed at the end of the XYZ linear motion mechanism, and the rotation axis direction thereof is parallel to one of the X-direction linear motion module 11 and the Y-direction linear motion module 12; the input end of the first speed reducer 15 is connected with the output end of the first motor 14; the second motor 16 is fixed at the end of the first speed reducer 15, and the rotation axis direction thereof is perpendicular to the rotation axis direction of the first motor 14; the second motor 16 provides the negative pressure suction nozzle 9 with rotational freedom perpendicular to each other, so as to ensure that the workpiece can be stably grasped and work moved.

[0063] The negative pressure suction nozzle mounting seat 17 is fixed at the end of the second motor 16, and is provided with a pressure sensor thereon and is detachably connected with the negative pressure suction nozzle 9. Through the connection of the pressure sensor and the negative pressure suction nozzle 9, it is ensured that the grasping force is moderate, so as to avoid damaging the workpiece.

[0064] As shown in Figure 1 , Figure 2 and Figure 4 , the visual feeding module 2 is used to identify the feature points and positioning coordinates of the workpiece, and to ensure that the workpiece can be accurately fed. The specific structure comprises:

[0065] The mounting plate 21 is fixed on the work platform 100.

[0066] The feeding tray 22 is made of transparent material and is arranged on the mounting plate 21. The surface thereof is arrayed and separated into a plurality of unit cells 22a along the X-axis and Y-axis directions, facilitating the mixed loading and positioning of the workpiece.

[0067] The flat light source 23 is arranged in parallel above the feeding tray 22 to provide uniform backlight, facilitating the visual detection camera 25 to identify the feature points of the workpiece.

[0068] The XY linear motion mechanism 24 is arranged below the feeding tray 22 to drive the visual detection camera 25 to move in positioning.

[0069] The visual detection camera 25 is connected to the end of the XY linear motion mechanism 24, the lens axis of which is perpendicular to the feeding tray 22, and carries a deep learning algorithm, which is used to identify the contour and size of the workpiece and generate positioning coordinates. It ensures that the workpiece can be accurately fed, and provides support for the process parameter selection of the quasi-state transplanting module 1, the flux coating module 3, the gold removal module 4, the hot air knife module 5, the tin coating module 6, the suction nozzle warehouse module 7 and the re-inspection module 8.

[0070] As shown in Figure 1 and Figure 2 , the flux coating module 3 coats flux on the surface of the workpiece to prepare for the subsequent tin coating process.

[0071] As shown in Figure 1 and Figure 2 , the gold removal module 4 uses a gold removal tin pot inside the gold removal module 4 to perform gold removal work on the workpiece, which is used to reduce the gold content of the workpiece.

[0072] As shown in Figure 1 and Figure 2 , the hot air knife module 5 heats the workpiece by hot air, and the temperature and air speed can be independently adjusted to ensure that the surface of the workpiece reaches a suitable temperature, and at the same time can be used for hot melting cleaning of impurities on the surface of the workpiece.

[0073] As shown in Figure 1 , Figure 2 and Figure 5 , the tin coating module 6 immerses the workpiece in a tin pot for tin coating treatment to ensure that the surface of the workpiece is uniformly covered with a tin layer.

[0074] As shown in Figure 1 , Figure 2 andFigure 3 As shown in the drawing, the suction nozzle module 7 is provided with a locking mechanism for fixing different specifications of negative pressure suction nozzles 9, which can meet the grasping requirements of different workpieces.

[0075] As shown in the drawing, Figure 1 and Figure 2 The re-inspection module 8 is provided with a detection camera and a fill light arranged upward along the Z-axis direction to re-inspect the workpiece after tin plating to ensure the quality.

[0076] As shown in the drawing, Figure 1 , Figure 2 and Figure 4 Further, the mounting plate 21 is also provided with an unqualified product collection groove 26 and a finished product placement disc 27.

[0077] As shown in the drawing, Figure 1 , Figure 2 and Figure 3 Further, the second motor 16 is a hollow motor, and the rotating shaft of the second motor 16 is a hollow shaft, the front and rear ends of which are respectively connected with the vacuum pipeline and the negative pressure suction nozzle mounting seat 17 to provide a vacuum channel for the negative pressure suction nozzle mounting seat 17 and realize the adsorption function of the negative pressure suction nozzle 9.

[0078] As shown in the drawing, Figure 1 , Figure 2 and Figure 3 Further, a second speed reducer is arranged between the second motor 16 and the negative pressure suction nozzle mounting seat 17, which is a hollow speed reducer to improve the stability of the negative pressure suction nozzle 9 during rotation.

[0079] As shown in the drawing, Figure 1 , Figure 2 and Figure 5 The gold removing module 4 and the tin plating module 6 each include a tin pot and a scraper, the scraper is controlled by horizontal and lifting moving assemblies, the surface oxidation layer of the tin liquid in the tin pot is scraped off by the translation of the scraper, and the one-way scraping operation of the surface oxidation layer of the tin liquid is realized by the lifting of the scraper.

[0080] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The use method of the above-mentioned novel tin plating machine includes the following steps:

[0081] Data import: import the three-dimensional model of the workpiece into the visual detection camera 25, and establish a feature point recognition model through a deep learning algorithm;

[0082] Path learning: the operator manually demonstrates the motion trajectory of the simulation transplanting module 1, and the central controller records the trajectory points and generates a smooth motion path;

[0083] Manufacturing operation:

[0084] S1, randomly placing workpieces of different specifications in the unit cells 22a of the feeding tray 22, and turning on the flat light source 23 to form a uniform backlight;

[0085] S2, the vision detection camera 25 scans the feeding tray 22 through the XY linear motion mechanism 24, identifies the workpiece type, size and positioning coordinates, and marks the unqualified products to be moved to the collection groove 26 through the paratonic transplanting module 1.

[0086] S3, calling the locking mechanism of the suction nozzle warehouse module 7 according to the workpiece type, and replacing the adaptive negative pressure suction nozzle 9;

[0087] S4, the paratonic transplanting module 1 grasps the workpiece according to the path, calls the corresponding process parameters according to the workpiece type, controls the flux application module 3, the gold removal module 4, the hot air knife module 5, the soldering module 6 and the re-inspection module 8 to cooperate with the paratonic transplanting module 1 to complete the gold removal, heating, soldering and re-inspection.

[0088] The novel soldering machine provided by the utility model realizes high efficiency, high precision and high flexibility of processing capacity through the technical integration of automation, intelligence and modularization, is especially suitable for flexible production requirements of multiple varieties and small batches in the field of electronic manufacturing, significantly reduces the comprehensive cost, and is a revolutionary upgrading scheme of the traditional soldering process.

[0089] Finally, it should be noted that the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A new type of tinning machine comprising a work platform (100), characterized in that: The job platform (100) is integrated with a mimicry transplanting module (1), a visual feeding module (2), a flux-cored wire coating module (3), a gold removing module (4), a hot air knife module (5), a tin coating module (6), a suction nozzle warehouse module (7) and a re-inspection module (8). The mimicry transplanting module (1) comprises: An XYZ linear motion mechanism, sequentially orthogonally connected by an X-direction linear motion module (11), a Y-direction linear motion module (12) and a Z-direction linear motion module (13), to provide three-dimensional translational freedom; A first motor (14) fixed to the end of the XYZ linear motion mechanism, with the rotation axis direction being parallel to one of the X-direction linear motion module (11) and the Y-direction linear motion module (12); A first speed reducer (15) connected with the output end of the first motor (14); A second motor (16) fixed to the end of the first speed reducer (15), with the rotation axis direction being perpendicular to the rotation axis direction of the first motor (14); A negative pressure suction nozzle mounting seat (17) fixed to the end of the second motor (16), provided with a pressure sensor thereon and detachably connected with a negative pressure suction nozzle (9).

2. A novel tinning machine as claimed in claim 1, wherein: The visual feeding module (2) comprises: A mounting plate (21) fixed on the job platform (100); A feeding disc (22) of transparent material, provided on the mounting plate (21), with the surface being arrayed and separated into a plurality of unit cells (22a) along the X-axis and Y-axis directions; A flat panel light source (23) arranged in parallel above the feeding disc (22); An XY linear motion mechanism (24) arranged below the feeding disc (22); A visual inspection camera (25) connected to the end of the XY linear motion mechanism (24), with the lens axis being perpendicular to the feeding disc (22) and carrying a deep learning algorithm for identifying feature points of a workpiece and generating positioning coordinates.

3. A novel tinning machine as claimed in claim 2, wherein: An unqualified product collection groove (26) and a finished product placement disc (27) are further provided on the mounting plate (21).

4. A novel tinning machine as claimed in claim 3, wherein: The second motor (16) is a hollow motor, the rotation axis of the second motor (16) is a hollow shaft, and the hollow shaft is connected with a vacuum pipeline and the negative pressure suction nozzle mounting seat (17) at the front and rear ends, respectively.

5. A novel tinning machine as claimed in claim 4, wherein: A second speed reducer is further provided between the second motor (16) and the negative pressure suction nozzle mounting seat (17), and the second speed reducer is a hollow speed reducer.

6. A novel tinning machine as claimed in claim 5, wherein: The temperature and air speed of the hot air knife module (5) can be independently adjusted.

7. A novel tinning machine as claimed in claim 6, wherein: The gold removing module (4) and the tin coating module (6) each comprise a tin pot and a scraping rod, and the scraping rod is controlled by a horizontal and lifting moving assembly.

8. A novel tinning machine as claimed in claim 7, wherein: The suction nozzle warehouse module (7) is provided with a locking mechanism for fixing different specifications of the negative pressure suction nozzle (9).

9. A novel tinning machine as claimed in claim 8, wherein: The re-inspection module (8) comprises a detection camera and a fill light arranged upwards along the Z-axis direction.

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