A multi-station automatic tin coating device

Abstract

The application relates to a multi-station automatic tin coating device, and belongs to the technical field of electronic product manufacturing.The device comprises a support frame, a rotating assembly, a feeding assembly, a tackifying assembly, a tin coating assembly, a film scraping assembly, a testing assembly and a discharging assembly; the rotating assembly drives a workpiece to rotate to each station through a rotating cylinder and a workpiece support frame; the feeding assembly automatically feeds through a feeding telescopic cylinder and a feeding clamping cylinder; the tackifying assembly coats a tackifying agent through a processing cylinder and a processing connecting box; the tin coating assembly picks and coats solder through a tin coating cylinder and a tin coating connecting box; the film scraping assembly scrapes off an oxidation layer of solder through a film scraping telescopic cylinder and a scraper; the testing assembly detects the conductive performance of the workpiece through a testing cylinder and a testing support rod; and the discharging assembly sorts the workpiece through a discharging telescopic cylinder and a discharging clamping cylinder; the application realizes full automation of workpiece tin coating, and improves production efficiency and product quality.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electronic product manufacturing, and in particular to a multi-station automatic tin coating device. BACKGROUND

[0002] In the field of electronic product manufacturing, a common part has two or more metal pins for connecting a circuit and transmitting current. The part is internally integrated with fine copper wires, which are pre-wound on the metal pins. In order to achieve reliable electrical connection and directly and firmly fix the copper wires on the pins, the current common method is to fix the copper wires on the pins by coating solder.

[0003] The mainstream production method on the market relies on manual coating. Specifically, an operator manually inserts the pin part with the wound copper wires into a tin liquid box containing molten tin liquid. Through brief immersion, the tin liquid can wrap the pins and the copper wires, thereby directly fixing the copper wires on the pins. Although this method can achieve connection, the efficiency is low. Since each pin needs to be manually operated one by one, the entire coating process is time-consuming and laborious, and the consistency of the processing quality is difficult to guarantee, and incomplete tin layer wrapping may occur due to operation differences. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of low efficiency and poor quality consistency of manual solder coating, the application provides a multi-station automatic tin coating device.

[0005] The multi-station automatic tin coating device provided by the application adopts the following technical scheme: A multi-station automatic tin coating device, comprising a support frame, a rotating assembly and a tin coating assembly, the rotating assembly comprising a rotating cylinder and a workpiece support frame, the rotating cylinder being vertically arranged on the support frame, and the workpiece support frame being arranged on the output shaft of the rotating cylinder; a workpiece is arranged on the workpiece support frame; the tin coating assembly comprises a tin coating cylinder, a tin coating connecting frame, a tin coating connecting box and a solder containing box, the tin coating cylinder being vertically arranged on the support frame, the tin coating cylinder being located on one side of the rotating cylinder, the tin coating connecting frame being arranged on the piston rod of the tin coating cylinder, and the tin coating connecting box being arranged on the tin coating connecting frame; the solder containing box is arranged on the support frame, and the solder containing box is located on one side of the tin coating cylinder; the tin coating connecting box is used for taking solder in the solder containing box; the rotating assembly is used for rotating the workpiece to above the tin coating connecting box, and the tin coating assembly is used for coating solder on the workpiece.

[0006] By adopting the technical scheme, the rotating assembly drives the workpiece support frame through the rotating cylinder to automatically rotate the workpiece to the tinning station, the tinning assembly drives the tinning connecting box to take solder in the solder containing box and coat the solder on the workpiece pin through the tinning cylinder, automation operation is realized, production efficiency and coating consistency are improved, and manual operation links are reduced.

[0007] Preferably, a discharging block is arranged on the workpiece support frame.

[0008] By adopting the technical scheme, the discharging block is arranged on the workpiece support frame to provide stable positioning support for the workpiece, ensure that the workpiece is fixed during rotation and processing, avoid position deviation, and thus ensure the processing precision of the subsequent tinning and testing stations.

[0009] Preferably, an adhesion enhancing assembly is further arranged on the support frame, the adhesion enhancing assembly comprises a processing cylinder, a processing connecting frame and an adhesion enhancer containing box, the processing cylinder is vertically arranged on the support frame, the processing connecting frame is arranged on the piston rod of the processing cylinder, and a processing connecting box is arranged on the processing connecting frame; the adhesion enhancer containing box is arranged on one side of the rotating cylinder, the processing connecting box is used to take the adhesion enhancer in the adhesion enhancer containing box; and the adhesion enhancing assembly is used to apply the adhesion enhancer to the workpiece.

[0010] By adopting the technical scheme, the adhesion enhancing assembly drives the processing connecting box to take the adhesion enhancer in the adhesion enhancer containing box and coat the adhesion enhancer on the surface of the workpiece pin through the processing cylinder, effectively enhances the bonding force between the solder material and the pin, provides a good basis for the subsequent tinning process, and helps to improve the adhesion quality and integrity of the tinning layer.

[0011] Preferably, a film scraping assembly is arranged on the support frame, the film scraping assembly comprises a film scraping telescopic cylinder and a film scraping connecting frame, the film scraping telescopic cylinder is arranged on the support frame, the film scraping telescopic cylinder is located on one side of the solder containing box, the film scraping connecting frame is arranged on the piston rod of the film scraping telescopic cylinder, and a scraper is arranged on the film scraping connecting frame; and the film scraping assembly is used to scrape off the oxide layer on the surface layer of the solder liquid.

[0012] By adopting the technical scheme, the film scraping assembly drives the scraper to move horizontally and scrape off the oxide layer on the surface of the solder liquid in the solder containing box through the film scraping telescopic cylinder, avoids the influence of the oxidized impurities on the solder coating quality, and ensures the purity of the solder and the consistency of the coating effect.

[0013] Preferably, the support frame is further provided with a test assembly, the test assembly comprising a test cylinder, a test support block and a display, the test cylinder being vertically arranged on the support frame, the test support block being arranged at the end of the piston rod of the test cylinder, and a test support rod being vertically arranged on the test support block; and the test support block is provided with an information processor, and the information processor is in communication connection with the display.

[0014] By adopting the above technical scheme, the test assembly drives the test support block to rise through the test cylinder so that the test support rod is in contact with the workpiece pin, the information processor collects the conductive signal and displays the test result through the display, and the automatic detection and real-time quality monitoring of the workpiece conductive performance are realized.

[0015] Preferably, the test support rod is vertically slidably arranged on the test support block, a spring is sleeved on the test support rod, one end of the spring abuts against the test support rod, and the other end of the spring abuts against the test support block.

[0016] By adopting the above technical scheme, the test support rod can vertically slide along the test support block under the action of the spring, and the contact pressure with the workpiece pin is adaptively adjusted, so that the electrical connection stability is ensured, and the accuracy and reliability of the test signal collection are improved.

[0017] Preferably, the support frame is further provided with a discharging assembly, the discharging assembly comprising a discharging telescopic cylinder and a discharging cylinder, the discharging telescopic cylinder being arranged on one side of the rotating cylinder, and the discharging cylinder being arranged at the end of the piston rod of the discharging telescopic cylinder; the end of the piston rod of the discharging cylinder is provided with a discharging clamping cylinder; one side of the rotating cylinder is further provided with a conveying belt, the discharging assembly is used for collecting the finished workpieces onto the conveying belt, and the conveying belt is used for conveying the workpieces to the next process.

[0018] By adopting the above technical scheme, the discharging assembly drives the discharging clamping cylinder to grab the workpieces through the discharging telescopic cylinder and the discharging cylinder, and according to the test result, the qualified workpieces are transferred to the conveying belt, and the unqualified workpieces are separated to the support frame, so that the automatic sorting and flow control of the workpieces are realized.

[0019] Preferably, the support frame is further provided with a feeding assembly, the feeding assembly comprising a feeding telescopic cylinder, a feeding cylinder and a loading box, the feeding telescopic cylinder being arranged on the support frame, the feeding telescopic cylinder being located on one side of the rotating cylinder, the feeding cylinder being arranged at the end of the feeding telescopic cylinder, and the end of the piston rod of the feeding cylinder being provided with a feeding clamping cylinder; the loading box is arranged on one side of the feeding cylinder, and the workpieces are arranged in the loading box; and the feeding assembly is used for feeding the workpieces to the workpiece support frame.

[0020] By adopting the technical scheme, the feeding assembly drives the feeding clamping cylinder to sequentially grab workpieces from the loading box and accurately fit the workpieces on the discharging blocks of the workpiece support frame through the feeding telescopic cylinder and the feeding cylinder, thereby realizing continuous automatic feeding and improving feeding rhythm and production continuity.

[0021] To sum up, the present application has the following beneficial technical effects: The workpieces are sequentially guided through the feeding, tackifying, tin coating and testing stations by the rotating assembly, realizing fully automatic cyclic operation. The feeding assembly automatically fits the workpieces from the loading box on the discharging blocks through the feeding telescopic cylinder and the feeding clamping cylinder, reducing manual feeding time. The tackifying assembly drives the processing connecting box to pick up and apply tackifying agent through the processing cylinder, enhancing the solder adhesion. The tin coating assembly drives the tin coating connecting box to pick up and apply solder through the tin coating cylinder, in combination with the doctor blade of the film scraping assembly to remove the solder liquid oxidation layer, ensuring the solder quality. The testing assembly automatically detects the workpiece conductivity through the testing cylinder and the testing support rod, and displays the result through the display. The discharging assembly automatically sorts the workpieces according to the test results through the discharging telescopic cylinder and the discharging clamping cylinder. The entire device replaces the manual solder coating method, improves production efficiency, reduces labor consumption, and ensures the stability and reliability of the processing quality through consistent process parameters and automatic testing, effectively avoiding the incomplete tin layer wrapping problem. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structure schematic diagram for embodying the whole in the embodiment of the present application.

[0023] Figure 2 is a structure schematic diagram for embodying the rotating assembly and the feeding assembly in the embodiment of the present application.

[0024] Figure 3 is a structure schematic diagram for embodying the tackifying assembly in the embodiment of the present application.

[0025] Figure 4 is a structure schematic diagram for embodying the tin coating assembly in the embodiment of the present application.

[0026] Figure 5 is a structure schematic diagram for embodying the film scraping assembly in the embodiment of the present application.

[0027] Figure 6 is a structure schematic diagram for embodying the testing assembly in the embodiment of the present application.

[0028] Figure 7 is a partial structure enlarged view of the testing assembly in the embodiment of the present application.

[0029] Figure 8 is a structure schematic diagram for embodying the discharging assembly in the embodiment of the present application.

[0030] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Workpiece carrier frame; 12. Loading support rod; 13. Adhesion-enhancing support rod; 14. Soldering support rod; 15. Unloading support rod; 16. Testing support rod; 17. Scraping support rod; 18. Conveying support rod; 2. Rotating assembly; 21. Rotating cylinder; 211. Support plate; 22. Workpiece support frame; 221. Unloading block; 3. Adhesion-enhancing assembly; 31. Processing cylinder; 32. Processing connecting frame; 321. Processing connecting box; 33. Adhesion-enhancing agent container; 4. Soldering assembly; 41. Soldering cylinder; 42. Soldering connecting frame; 43. Soldering connecting box; 44. Solder container; 5. 51. Film scraping assembly; 52. Film scraping telescopic cylinder; 53. Film scraping connecting frame; 54. Scraper blade; 55. Lifting cylinder; 6. Testing assembly; 61. Testing cylinder; 62. Testing support block; 621. Testing support rod; 6211. Spring; 63. Display; 7. Unloading assembly; 71. Unloading telescopic cylinder; 72. Unloading cylinder; 721. Unloading clamping cylinder; 7211. Unloading gripper; 8. Loading assembly; 81. Loading telescopic cylinder; 82. Loading cylinder; 821. Loading clamping cylinder; 8211. Loading gripper; 83. Loading box; 831. Loading trough; 9. Workpiece; 91. Pipe foot; 10. Conveyor belt. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0032] This application discloses a multi-station automatic tin coating device, referring to... Figure 1 The assembly includes a support frame 1, a rotating component 2, an adhesion-enhancing component 3, a tin-coating component 4, a testing component 6, a unloading component 7, and a loading component 8. All components are mounted on the support frame 1. A workpiece 9 is placed on the rotating component 2. The adhesion-enhancing component 3, located on one side of the rotating component 2, is used to apply an adhesion enhancer to the pins of the workpiece 9. The tin-coating component 4, also located on one side of the rotating component 2, uses solder to fix the copper wires on the workpiece 9 to the pins 91. The testing component 6, located on one side of the rotating component 2, is used to perform conductivity tests on the completed workpiece 9. The unloading component 7, located on one side of the rotating component 2, is used to remove the workpiece 9, after sequential adhesion-enhancing, tin-coating, and testing, from the rotating component 2. The loading component 8, located on one side of the rotating component 2, is used to load unprocessed workpieces onto the rotating component 2.

[0033] Reference Figures 1-2The rotating assembly 2 includes a rotating cylinder 21 and a workpiece support frame 22. The rotating cylinder 21 is vertically fixedly connected to the support frame 1. A support disk 211 is fixedly connected to the end of the output shaft of the rotating cylinder 21. The support disk 211 is located at the upper end of the rotating cylinder 21. Four workpiece support frames 22 are vertically fixedly connected to the top wall of the support disk 211. The four workpiece support frames 22 are arranged circumferentially along the axis of the support disk 211. In this embodiment, the workpiece support frame 22 is L-shaped. The lower end of the vertical section of the workpiece support frame 22 is fixedly connected to the support disk 211. The horizontal section of the workpiece support frame 22 is fixedly connected to the upper end of the vertical section. Two parallel feeding blocks 221 are fixedly connected to the end of the horizontal section. The length direction of the feeding blocks 221 is parallel to the length direction of the horizontal section of the workpiece support frame 22.

[0034] Reference Figures 1-2 The feeding assembly 8 includes a feeding telescopic cylinder 81, a feeding cylinder 82, and a loading box 83. A workpiece carrier 11 is vertically fixedly connected to the support frame 1, located on one side of the rotary cylinder 21. The loading box 83 is mounted on the workpiece carrier 11. A feeding support rod 12 is also vertically fixedly connected to the support frame 1. The feeding telescopic cylinder 81 is fixedly connected to the feeding support rod 12, and the length direction of the feeding telescopic cylinder 81 is perpendicular to the length direction of the feeding support rod 12. The feeding cylinder 82 is vertically fixedly connected to the end of the piston rod of the feeding telescopic cylinder 81. Two feeding clamping cylinders 821 arranged side by side are vertically fixedly connected to the end of the piston rod of the feeding cylinder 82. In this embodiment, the actuating end of the feeding clamping cylinder 821 is a feeding gripper 8211.

[0035] Reference Figures 1-2 The workpiece 9 is annular in shape. Two parallel legs 91 are fixedly connected to the outer circumferential sidewall of the workpiece 9, and the length direction of the two legs 91 is perpendicular to the axis of the workpiece 9. A retaining ridge is provided on the inner annular sidewall of the workpiece 9. When the workpiece 9 is fitted onto the feeding block 221, this retaining ridge increases the friction between the inner sidewall of the workpiece 9 and the feeding block 221, thereby effectively preventing relative sliding and rotation between the workpiece 9 and the feeding block 221 during the operation of the rotating assembly 2. Two rows of parallel feeding slots 831 are provided on the top wall of the loading box 83. These feeding slots 831 are used to accommodate unprocessed workpieces 9 and are arranged along the length direction of the loading box 83.

[0036] Reference Figures 1-2During the loading operation, the loading clamping cylinder 821 of the loading assembly 8 sequentially grips the workpiece 9 from the end of the loading box 83 furthest from the rotating assembly 2 towards the end closest to the rotating assembly 2. To achieve sequential loading, the extension stroke of the loading telescopic cylinder 81 is set to increase with each gripping action, thereby ensuring that the loading jaws 8211 of the loading clamping cylinder 821 can move accurately to and be positioned at the respective loading slots 831 of the loading box 83. Specifically, the loading cylinder 82 first moves the loading clamping cylinder 821 downward to above the loading box 83, and then the loading jaws 8211 perform a gripping action to clamp the workpiece 9. Next, the loading cylinder 82 moves the loading clamping cylinder 821 upward until the inner ring of the workpiece 9 is aligned with the unloading block 221 on the rotating assembly 2. Then, the loading telescopic cylinder 81 drives the loading cylinder 82 and the loading clamping cylinder 821 holding the workpiece 9 to move towards the unloading block 221 until the workpiece 9 is placed on the unloading block 221. The tube pins 91 of the workpiece 9 placed on the unloading block 221 are vertically downward.

[0037] Reference Figure 1 and Figure 3 The adhesion-enhancing component 3 is located on one side of the rotating component 2, with the feeding component 8 as a reference. The adhesion-enhancing component 3 is arranged 90° clockwise, centered on the rotation axis of the rotating cylinder 21. The adhesion-enhancing component 3 includes a processing cylinder 31, a processing connecting frame 32, and an adhesion-enhancing agent container 33. An adhesion-enhancing support rod 13 is vertically fixedly connected to the support frame 1. The processing cylinder 31 is vertically mounted on the adhesion-enhancing support rod 13. The processing connecting frame 32 is fixedly connected to the end of the piston rod of the processing cylinder 31, located above the processing cylinder 31. The length direction of the processing connecting frame 32 is perpendicular to the length direction of the processing cylinder 31. A processing connecting box 321 is fixedly connected to the end of the processing connecting frame 32. The adhesion-enhancing agent container 33 is fixedly connected to the support frame 1 via a bracket, and is located below the processing connecting box 321.

[0038] Reference Figure 1 and Figure 3When the rotating assembly 2 rotates the workpiece support frame 22 carrying the workpiece 9 to the adhesive application station, the workpiece 9 and its vertically downward-pointing pins 91 are positioned directly above the processing connection box 321. The processing cylinder 31 first drives the processing connection frame 32 downwards, causing the processing connection box 321 to descend and immerse itself in the adhesive container 33, allowing the processing connection box 321 to pick up a sufficient amount of adhesive. Subsequently, the processing cylinder 31 drives the processing connection frame 32 upwards, causing the processing connection box 321, now containing adhesive, to rise and contact the pins 91 of the workpiece 9 above, thereby applying the adhesive to the pins. After coating, the processing cylinder 31 again drives the processing connection frame 32 downwards, separating the processing connection box 321 from the workpiece 9 and resetting it to its initial position, ready for the next work cycle. The entire process achieves the picking up and coating of adhesive through the vertical movement of the processing connection box 321.

[0039] Reference Figure 1 and Figure 4 The tin-coating assembly 4 is located on one side of the rotating assembly 2, and with reference to the adhesion-enhancing assembly 3, the tin-coating assembly 4 is arranged 90° clockwise with the rotation axis of the rotating cylinder 21 as the center. The tin-coating assembly 4 includes a tin-coating cylinder 41, a tin-coating connecting frame 42, a tin-coating connecting box 43, and a solder container 44. The tin-coating cylinder 41 is vertically fixed to the tin-coating support rod 14. The tin-coating connecting frame 42 is fixedly connected to the end of the piston rod of the tin-coating cylinder 41, and is located above the tin-coating cylinder 41. The length direction of the tin-coating connecting frame 42 is perpendicular to the length direction of the tin-coating cylinder 41. The tin-coating connecting box 43 is fixedly connected to the tin-coating connecting frame 42. The solder container 44 is fixedly connected to one side of the rotating cylinder 21, and is located below the tin-coating connecting box 43.

[0040] Reference Figure 1 and Figure 4 When the rotating assembly 2 rotates the workpiece support frame 22 carrying the workpiece 9 to the soldering station, the workpiece 9 and the vertically downward-pointing pin 91 are directly above the soldering connection box 43. The soldering cylinder 41 first drives the soldering connection frame 42 downwards, causing the soldering connection box 43 to descend and immerse itself in the solder container 44, allowing the soldering connection box 43 to pick up a sufficient amount of solder. Subsequently, the soldering cylinder 41 drives the soldering connection frame 42 upwards, causing the soldering connection box 43 to rise, thus bringing the solder-filled soldering connection box 43 into contact with the pin 91 of the workpiece 9 above, thereby coating the pin with solder. After coating, the soldering cylinder 41 drives the soldering connection frame 42 downwards, separating the soldering connection box 43 from the workpiece 9 and returning it to its initial position to await the next operation. The entire process achieves solder picking and coating through the up-and-down movement of the soldering connection box 43.

[0041] Reference Figure 1 and Figure 5A scraping assembly 5 is provided on one side of the solder coating assembly 4. The scraping assembly 5 is used to scrape off the oxide layer on the surface of the solder liquid. The scraping assembly 5 includes a scraping telescopic cylinder 51, a scraping connecting frame 52, and a lifting cylinder 53. A scraping support rod 17 is vertically fixedly connected to the support frame 1. The lifting cylinder 53 is vertically fixedly connected to the scraping support rod 17. The scraping telescopic cylinder 51 is fixedly connected to the end of the piston rod of the lifting cylinder 53. The scraping telescopic cylinder 51 is located at the upper end of the lifting cylinder 53, and its length direction is perpendicular to the length direction of the lifting cylinder 53. The scraping connecting frame 52 is fixedly connected to the end of the piston rod of the scraping telescopic cylinder 51, and its length direction is parallel to the length direction of the scraping telescopic cylinder 51. A scraper 521 is fixedly connected to the end of the scraping connecting frame 52, and the scraper 521 is located above the solder container 44.

[0042] Reference Figure 1 and Figure 5 The lifting cylinder 53 drives its piston rod downward, causing the scraping film telescopic cylinder 51, the scraping film connecting frame 52, and the scraper 521 to descend as a whole until the scraper 521 contacts the solder liquid surface. Then, the scraping film telescopic cylinder 51 drives its piston rod to extend, pushing the scraping film connecting frame 52 and the scraper 521 horizontally, allowing the scraper 521 to scrape across the solder liquid surface, effectively removing the oxide layer on the upper surface. After scraping, the lifting cylinder 53 drives its piston rod upward, raising the scraper 521 to its initial height above the solder container 44. Then, the scraping film telescopic cylinder 51 drives its piston rod to retract, moving the scraper 521 horizontally back to its initial horizontal position. The entire process, through the sequential actions of the lifting cylinder 53 and the scraping film telescopic cylinder 51, achieves the coordinated movement of the scraper 521's descent, horizontal scraping, upward resetting, and horizontal resetting, ensuring the accuracy and reliability of the scraping operation and effectively avoiding interference with surrounding components.

[0043] Reference Figure 1 , Figure 6 and Figure 7The test component 6 is located on one side of the rotating component 2, and with the tin-coating component 4 as a reference, the test component 6 is arranged 90° clockwise with the rotation axis of the rotating cylinder 21 as the center. A test support rod 16 is vertically fixedly connected to the support frame 1. The test component 6 includes a test cylinder 61, a test support block 62, and a display 63. The test cylinder 61 is vertically fixedly connected to the test support rod 16, and the test support block 62 is fixedly connected to the end of the piston rod of the test cylinder 61, and the test support block 62 is located at the upper end of the test cylinder 61. The test support rod 621 is vertically slidably connected to the upper end of the test support block 62. An information processor is provided inside the test support block 62, and the information processor is connected to the test support rod 621 through wires. A spring 6211 is also sleeved on the test support rod 621, with one end of the spring 6211 abutting against the test support rod 621 and the other end of the spring 6211 abutting against the test support block 62. The display 63 is fixedly connected to the support frame 1 via a display bracket, and the information processor is communicatively connected to the display 63.

[0044] Reference Figure 1 , Figure 6 and Figure 7 When the rotating assembly 2 rotates the processed workpiece 9 to the test station, the test cylinder 61 drives the test support block 62 to move upward, causing the test support rod 621 to contact the pin 91 of the workpiece 9. Under the action of the spring 6211, the test support rod 621 slides vertically to adaptively adjust the contact pressure with the pin 91, ensuring a stable electrical connection. The information processor sends a test signal to the test support rod 621 via a wire and collects the response signal of the pin 91 through the test support rod 621 to determine the conductivity of the pin 91. The test results are processed by the information processor and transmitted to the display 63 for visual display. After the test is completed, the test cylinder 61 drives the test support block 62 to move downward, separating the test support rod 621 from the workpiece 9 and resetting it to its initial position.

[0045] Reference Figure 1 and Figure 8The feeding assembly 7 is located on one side of the test assembly 6. A feeding support rod 15 is vertically fixedly connected to the support frame 1. The feeding support rod 15 is located on one side of the rotary cylinder 21. The feeding assembly 7 includes a feeding telescopic cylinder 71 and a feeding cylinder 72. The feeding telescopic cylinder 71 is fixedly connected to the feeding support rod 15. The length direction of the feeding telescopic cylinder 71 is perpendicular to the feeding support rod 15. The feeding cylinder 72 is vertically fixedly connected to the end of the piston rod of the feeding telescopic cylinder 71. Two feeding clamping cylinders 721 arranged side by side are vertically fixedly connected to the end of the piston rod of the feeding cylinder 72. In this embodiment, the actuating end of the feeding clamping cylinder 721 is a feeding gripper 7211. A conveying support rod 18 is fixedly connected to the support frame 1. The conveying support rod 18 is located on one side of the feeding support rod 15. A conveyor belt 10 is installed on the conveying support rod 18. When workpiece 9 is tested as qualified by testing component 6, unloading component 7 unloads workpiece 9 onto conveyor belt 10; when workpiece 9 is tested as unqualified by testing component 6, unloading component 7 unloads workpiece 9 into the area between unloading support rod 15 and conveyor belt 10.

[0046] Reference Figure 1 and Figure 8 The unloading telescopic cylinder 71, via its piston rod, drives the unloading cylinder 72 and the unloading clamping cylinder 721 to move closer to the workpiece 9, aligning the unloading clamping jaws 7211 vertically with the workpiece 9. Subsequently, the unloading cylinder 72, via its piston rod, drives the unloading clamping cylinder 721 to move downwards, and the unloading clamping jaws 7211 perform a clamping action to firmly grasp the workpiece 9. Next, the unloading telescopic cylinder 71, via its piston rod, drives the unloading cylinder 72 and the unloading clamping cylinder 721 to move closer to the conveyor belt 10, causing the workpiece 9 to detach from the unloading block 221 on the rotating assembly 2. Based on the test results, the unloading telescopic cylinder 71 drives the unloading cylinder 72 and the unloading clamping cylinder 721 holding the workpiece 9 to the corresponding unloading position: If the workpiece 9 is a qualified product, the unloading telescopic cylinder 71 moves the workpiece 9 above the conveyor belt 10, the unloading cylinder 72 drives the unloading clamping cylinder 721 to move downward, and the unloading gripper 7211 releases the workpiece 9, allowing it to fall onto the conveyor belt 10 for conveying; if the workpiece 9 is a non-qualified product, the unloading telescopic cylinder 71 moves the workpiece 9 to the area between the unloading support rod 15 and the conveyor belt 10, allowing the workpiece 9 to fall onto the support frame 1. After unloading is completed, the unloading telescopic cylinder 71 and the unloading cylinder 72 return to their initial positions, ready for the next work cycle.

[0047] The implementation principle of the multi-station automatic tin coating device in this application embodiment is as follows: The multi-station automatic tin coating device in this application embodiment uses a rotating component 2 to drive the workpiece 9 through the feeding, bonding, tin coating, and testing stations in sequence, realizing fully automated cyclic operation. The feeding component 8 sequentially places the workpiece 9 from the loading box 83 onto the unloading block 221. The rotating cylinder 21 drives the support plate 211 and the workpiece support frame 22 to rotate, conveying the workpiece 9 to each station. At the bonding station, the processing cylinder 31 of the bonding component 3 drives the processing connecting box 321 to immerse and apply the bonding agent, and then rises to complete the bonding agent coating of the pin 91. At the tin coating station, the tin coating cylinder 41 of the tin coating component 4 drives the tin coating connecting box 43 to immerse and apply solder, and then rises to complete the solder coating of the pin 91. The scraper 521 of the scraping component 5 scrapes off the oxide layer on the surface of the solder liquid to ensure the quality of the solder. At the testing station, the test cylinder 61 of the testing component 6 drives the test support rod 621 to contact the pin 91, and the information processor performs a conductivity test, with the result displayed on the display 63. At the unloading station, the unloading component 7, based on the test results, transfers the qualified products to the conveyor belt 10 via the unloading telescopic cylinder 71 and the unloading cylinder 72.

[0048] This application replaces the manual soldering method with multi-station design and automated operation of each component, which improves production efficiency and reduces manpower consumption. At the same time, consistent process parameters and automated testing ensure the stability and reliability of processing quality and effectively avoid the problem of incomplete solder coating.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-station automatic tin coating device, characterized in that: It includes a support frame (1), a rotating assembly (2), and a tin-coating assembly (4). The rotating assembly (2) includes a rotating cylinder (21) and a workpiece support frame (22). The rotating cylinder (21) is vertically mounted on the support frame (1), and the workpiece support frame (22) is mounted on the output shaft of the rotating cylinder (21). The workpiece (9) is mounted on the workpiece support frame (22). The tin coating assembly (4) includes a tin coating cylinder (41), a tin coating connecting frame (42), a tin coating connecting box (43), and a solder holding box (44). The tin coating cylinder (41) is vertically mounted on the support frame (1) and is located on one side of the rotary cylinder (21). The tin coating connecting frame (42) is mounted on the piston rod of the tin coating cylinder (41), and the tin coating connecting box (43) is mounted on the tin coating connecting frame (42). The solder container (44) is mounted on the support frame (1) and is located on one side of the soldering cylinder (41); the soldering connector (43) is used to remove solder from the solder container (44); The rotating assembly (2) is used to rotate the workpiece (9) above the tin-coating connector (43), and the tin-coating assembly (4) is used to coat the workpiece (9) with solder.

2. The multi-station automatic tin coating device according to claim 1, characterized in that: The workpiece support frame (22) is provided with a material feeding block (221).

3. The multi-station automatic tin coating device according to claim 1, characterized in that: The support frame (1) is also provided with an adhesive enhancement component (3). The adhesive enhancement component (3) includes a processing cylinder (31), a processing connecting frame (32), and an adhesive holding box (33). The processing cylinder (31) is vertically arranged on the support frame (1). The processing connecting frame (32) is arranged on the piston rod of the processing cylinder (31). The processing connecting frame (32) is provided with a processing connecting box (321). The tackifier container (33) is located on one side of the rotary cylinder (21), and the processing connection box (321) is used to remove the tackifier from the tackifier container (33); the tackifier assembly (3) is used to apply the tackifier to the workpiece (9).

4. The multi-station automatic tin coating device according to claim 2, characterized in that: The support frame (1) is provided with a scraping assembly (5), which includes a scraping telescopic cylinder (51) and a scraping connecting frame (52). The scraping telescopic cylinder (51) is provided on the support frame (1) and is located on one side of the solder container (44). The scraping connecting frame (52) is provided on the piston rod of the scraping telescopic cylinder (51) and is provided with a scraper (521). The scraping assembly (5) is used to scrape off the oxide layer on the surface of the solder liquid.

5. The multi-station automatic tin coating device according to claim 3, characterized in that: The support frame (1) is also provided with a test component (6), which includes a test cylinder (61), a test support block (62) and a display (63). The test cylinder (61) is vertically arranged on the support frame (1), and the test support block (62) is arranged at the end of the piston rod of the test cylinder (61). A test support rod (621) is vertically arranged on the test support block (62). An information processor is provided inside the test support block (62), and the information processor is communicatively connected to the display (63).

6. The multi-station automatic tin coating device according to claim 5, characterized in that: The test support rod (621) is vertically slidably mounted on the test support block (62). A spring (6211) is sleeved on the test support rod (621). One end of the spring (6211) abuts against the test support rod (621), and the other end of the spring (6211) abuts against the test support block (62).

7. The multi-station automatic tin coating device according to claim 1, characterized in that: The support frame (1) is also provided with a feeding assembly (7), which includes a feeding telescopic cylinder (71) and a feeding cylinder (72). The feeding telescopic cylinder (71) is located on one side of the rotary cylinder (21), and the feeding cylinder (72) is located at the end of the piston rod of the feeding telescopic cylinder (71). The end of the piston rod of the feeding cylinder (72) is provided with a feeding clamping cylinder (721). A conveyor belt (10) is also provided on one side of the rotary cylinder (21). The unloading assembly (7) is used to collect the finished workpiece (9) onto the conveyor belt (10). The conveyor belt (10) is used to transport the workpiece (9) to the next process.

8. The multi-station automatic tin coating device according to claim 1, characterized in that: The support frame (1) is also provided with a feeding assembly (8), which includes a feeding telescopic cylinder (81), a feeding cylinder (82) and a loading box (83). The feeding telescopic cylinder (81) is provided on the support frame (1) and is located on one side of the rotary cylinder (21). The feeding cylinder (82) is provided at the end of the feeding telescopic cylinder (81), and the end of the piston rod of the feeding cylinder (82) is provided with a feeding clamping cylinder (821). The loading box (83) is located on one side of the loading cylinder (82), and the workpieces (9) are neatly arranged on the loading box (83); the loading assembly (8) is used to load the workpieces (9) onto the workpiece support frame (22).

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