Solder ball preparation device for soft soldering

Abstract

The invention relates to the technical field of welding, in particular to a solder ball preparation device for soft soldering, which comprises a ball storage tank with a mounting seat higher than a solder ball separation device, a solder ball conveying shaft is hermetically and slidably connected into the ball storage tank, and a solder ball conveying channel is formed in the center of the solder ball conveying shaft. The lower end of the solder ball conveying shaft is fixedly and hermetically connected with a ball falling hose, one end, far away from the solder ball conveying shaft, of the ball falling hose is fixedly and hermetically connected with an air pipe connecting sleeve, and the air pipe connecting sleeve is fixedly connected to the solder ball separating device and communicated with a ball storage groove of the solder ball separating device. Through the synergistic effect of multiple structures, automatic and continuous supply of the solder balls is finally achieved, the problem that the storage capacity of a ball storage bin in an existing solder ball separation device is limited is solved, high efficiency and stability of feeding of the solder balls large in size in the long-time welding process are guaranteed, and the requirement of soft soldering for solder ball supply is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a tin ball preparation device for soft soldering. BACKGROUND

[0002] Microelectronic welding technology mainly refers to the connection technology in the miniaturization design and manufacturing process of electronic components and circuits. When connecting two materials, microelectronic welding technology has two purposes, one is to obtain good electrical conductivity, and the other is to obtain durable and reliable mechanical connection strength. Soft soldering technology is mainly used in microelectronic welding technology. In the fields of electronic manufacturing and precision machining, soft soldering is a commonly used connection technology.

[0003] The Chinese invention patent with publication number CN119035697B discloses a tin ball separation device for soft soldering. The separation mechanism mounting plate of the device is fixedly installed with a ball storage bin in sealed communication with the ball storage groove. The ball storage bin is used to store tin balls, and the bin cover is sealingly connected to the end of the ball storage bin away from the separation mechanism mounting plate. When in use, the bin cover needs to be opened manually to add tin balls to the ball storage bin. However, the space inside the ball storage bin is limited, especially when the volume of tin balls increases, the number of stored tin balls will be further limited, which is difficult to meet the long-time welding requirements, thereby affecting the feeding efficiency and effect.

[0004] Therefore, how to realize automatic and continuous supply of tin balls to expand the storage capacity of tin balls, reduce the frequency of manual addition, and ensure that the long-time welding feeding requirements can be met even in the case of large volume of tin balls, thereby improving the feeding efficiency and stability, is a problem that needs to be solved by those skilled in the art. SUMMARY

[0005] In order to overcome the defects of the existing tin ball separation device, such as limited storage capacity of the ball storage bin, further limited storage number when the volume of tin balls increases, the need for manual frequent opening of the bin cover to add tin balls, difficulty in meeting long-time welding requirements, and affected feeding efficiency and effect, realize automatic and continuous supply of tin balls, expand the storage capacity, reduce manual operation, and ensure the efficiency and stability of the feeding of large volume tin balls during long-time welding, the present application provides a tin ball preparation device for soft soldering.

[0006] The tin ball preparation device for soft soldering provided by the present application adopts the following technical scheme: The utility model provides a kind of tin ball preparation device for soldering, including mounting seat, the mounting position of tin ball separation device is higher than the mounting seat, tin ball storage tank is fixedly installed for storing tin ball on the mounting seat, the top of tin ball storage tank is detachably sealed connection has tank cover, tin ball conveying shaft is sealed slidingly connected in the inside of tin ball storage tank and penetrates its bottom, tin ball conveying channel is opened in the center of tin ball conveying shaft, tin ball conveying channel penetrates the lower end of tin ball conveying shaft, drop ball hose is fixedly sealed connection in the lower end of tin ball conveying shaft, air pipe connecting sleeve is fixedly sealed connection in the one end of drop ball hose away from tin ball conveying shaft, air pipe connecting sleeve is fixedly connected on tin ball separation device, and air pipe connecting sleeve is communicated with the ball storage groove of tin ball separation device;Tin ball input hole is opened on the outside of tin ball conveying shaft corresponding to tin ball, and tin ball input hole is communicated with tin ball conveying channel;Driving assembly is installed on the mounting seat and is drivingly connected with tin ball conveying shaft.

[0007] By adopting the above technical scheme, the design of mounting seat higher than tin ball separation device can assist tin ball conveying by gravity, reduce resistance and blockage; the externally connected tin ball storage tank is beneficial to improve the storage capacity of tin balls and reduce the frequency of manual addition; in combination with the sealed tank cover, it is convenient to supplement tin balls, and the quality of tin balls can be guaranteed through the sealing structure. At the same time, the driving assembly drives the tin ball conveying shaft to reciprocate, which can accurately control the communication state of the tin ball input hole and the tin ball storage tank, realize the intermittent conveying of tin balls, and avoid the blockage caused by irregular tin ball entering the channel; the guide assembly ensures the stability and accuracy of the movement of the tin ball conveying shaft, further improves the reliability of the conveying. It realizes the automatic and continuous supply of tin balls, improves the feeding efficiency and stability, reduces the manual operation intensity, and meets the efficient and reliable demand of tin ball supply in soldering in the field of electronic manufacturing.

[0008] Further, the driving assembly includes a driving motor, the driving motor is fixedly installed on the mounting seat, a cam disc is fixedly installed on the output shaft of the driving motor, a crank is hingedly connected to the cam disc, a driving frame is hingedly connected to the end of the crank away from the cam disc, and the driving frame is fixedly installed on the outside of the tin ball conveying shaft near the lower end thereof.

[0009] By adopting the above technical scheme, the driving motor provides continuous and stable power, and the cam disc, the crank and the driving frame work together to convert the rotary motion of the motor into the reciprocating linear motion of the tin ball conveying shaft, so as to accurately control the communication and disconnection state of the tin ball input hole and the inside of the tin ball storage tank, realize the intermittent conveying of tin balls, ensure the continuity of tin ball supply to meet the long-time welding demand, and avoid the blockage caused by too many tin balls entering the channel, effectively improve the stability and reliability of tin ball conveying.

[0010] Further, a guide assembly is mounted on the mounting seat corresponding to the driving assembly, the guide assembly comprises a guide shaft fixedly mounted on the mounting seat, the guide shaft is arranged in parallel with the tin ball conveying shaft, a guide hole is formed on the driving frame corresponding to the guide shaft, the guide shaft is slidably connected with the driving frame through the guide hole, and a sliding groove is formed on the mounting seat corresponding to the driving frame.

[0011] By adopting the above technical scheme, the cooperation of the guide shaft and the guide hole ensures that the driving frame can only move linearly in the direction parallel to the tin ball conveying shaft, avoiding the deviation or shaking of the driving frame during movement, and the sliding groove further enhances the guiding effect, making the movement of the driving frame and the tin ball conveying shaft more stable and accurate, thereby ensuring that the connection and disconnection of the tin ball input hole and the inside of the ball storage tank are more reliable, reducing the tin ball conveying failure caused by movement deviation, and improving the operation stability of the whole device.

[0012] Further, a gas compression assembly is arranged on the bottom of the ball storage tank corresponding to the tin ball conveying shaft, the gas compression assembly comprises a piston cavity formed in the bottom of the ball storage tank, a piston body is sealingly and slidably connected in the piston cavity, the piston body is fixedly sleeved on the tin ball conveying shaft, an air inlet mechanism is arranged on the ball storage tank, and an air outlet mechanism is arranged on the gas pipe connecting sleeve.

[0013] By adopting the above technical scheme, the gas compression assembly can generate airflow by the reciprocating movement of the tin ball conveying shaft, the airflow can push the tin balls to move in the conveying path such as the conveying channel and the ball dropping hose, assisting the tin ball conveying, especially when the tin ball gravity is insufficient, which can effectively avoid the tin ball jamming and improve the smoothness of conveying; at the same time, the airflow can also clean the conveying path, reducing the influence of impurities on tin ball conveying, further ensuring the feeding efficiency and stability. In addition, the movement of the tin ball conveying shaft drives the gas compression assembly, without the need for an additional power source, saving energy consumption and device space.

[0014] Further, the air inlet mechanism comprises an air inlet hole, the air inlet hole is formed on the side wall of the ball storage tank close to the top of the piston cavity, a first spring is fixedly installed at one end of the air inlet hole close to the piston cavity, an air inlet ring is fixedly installed at the other end of the air inlet hole away from the piston cavity, a first valve body is abuttingly connected between the air inlet ring and the first spring in the air inlet hole, and the first valve body closes the air inlet ring.

[0015] By adopting the above technical scheme, the automatic opening and closing of the air inlet hole is realized by cooperation of the first valve body, the first spring and the air inlet ring, so that the external gas can be smoothly sucked in when the piston body slides downward, and the air inlet channel is effectively closed when the piston body slides upward, ensuring that the gas in the piston cavity can enter the tin ball conveying path to form a driving gas flow, thereby improving the working efficiency of the air compression assembly. This automatic control mode does not require additional operation, responds quickly, can accurately cooperate with the movement of the piston body, further enhances the stability of the airflow auxiliary conveying of the tin ball, and has simple structure and high reliability, thereby reducing the risk of device failure.

[0016] Further, the exhaust mechanism includes an exhaust hole, which is formed in the side wall of the air pipe connecting sleeve, and an exhaust ring is fixedly installed at one end of the exhaust hole close to the outer surface of the air pipe connecting sleeve. A second spring is fixedly installed at one end of the exhaust ring inside the exhaust hole, and a second valve body is abutted and connected at the end of the second spring away from the exhaust ring. The second valve body closes the exhaust hole.

[0017] By adopting the above technical scheme, the automatic opening and closing of the air inlet hole is realized by cooperation of the first valve body, the first spring and the air inlet ring, so that the external gas can be smoothly sucked in when the piston body slides downward, and the air inlet channel is effectively closed when the piston body slides upward, ensuring that the gas in the piston cavity can enter the tin ball conveying path to form a driving gas flow, thereby improving the working efficiency of the air compression assembly. This automatic control mode does not require additional operation, responds quickly, can accurately cooperate with the movement of the piston body, further enhances the stability of the airflow auxiliary conveying of the tin ball, and has simple structure and high reliability, thereby reducing the risk of device failure.

[0018] Further, the tin ball conveying shaft top is drivingly connected with an agitating assembly, the agitating assembly includes a driving shaft, the driving shaft is fixedly installed on the top of the tin ball conveying shaft, a driving groove in a spiral line is formed on the outer surface of the driving shaft, an agitating frame is fitted on the driving shaft, the agitating frame is rotatably connected in the inside of the ball storage tank body, a limiting block is fixedly connected on the agitating frame corresponding to the driving groove, the limiting block is slidingly connected with the driving groove in cooperation, and an agitating rod is fixedly installed on the agitating frame.

[0019] By adopting the above technical scheme, the rotation of the agitating rod can be realized by the reciprocating movement of the tin ball conveying shaft, without the need for an additional power source, thereby saving energy consumption and space. The rotation of the agitating rod can prevent the tin balls in the ball storage tank body from accumulating and caking, so that the tin balls can be kept in a loose state and more easily enter the tin ball input hole, thereby reducing the problem of poor feeding caused by tin ball accumulation. At the same time, the agitation can also make the tin balls more evenly distributed in the tank, ensuring that the tin ball input hole can continuously and stably obtain tin balls, thereby further improving the feeding stability and reliability of the material preparation device, and cooperating with other components to ensure the supply of tin balls for long-time welding.

[0020] Further, the falling ball hose is made of transparent elastic material, the diameter of the tin ball is d, and the inner diameter of the falling ball hose is D, satisfying d>D>d.

[0021] By adopting the above technical scheme, the elastic material ensures the smoothness of tin ball conveying and avoids jamming; the specific inner diameter size effectively prevents multiple tin balls from passing through at the same time to cause blockage, thereby ensuring the orderliness and stability of feeding; the transparent material facilitates the operator to monitor the conveying state of the tin ball in real time, discovers and handles abnormal conditions in a timely manner, and further improves the reliability and maintainability of the device operation.

[0022] Further, the tin ball input hole is obliquely arranged in a tapered shape, the maximum diameter of the tin ball input hole is D, the minimum diameter of the tin ball input hole is D, and D<d, D>d.

[0023] By adopting the above technical scheme, the tapered oblique design of the tin ball input hole is beneficial to improve the smoothness of the tin ball entering the input hole and reduce the phenomenon of ball jamming; the size limitation ensures that the tin balls enter the conveying channel one by one, further prevents the channel from being blocked, maintains the orderliness and stability of tin ball conveying, cooperates with the design of the falling ball hose, and improves the feeding efficiency and reliability of the entire material preparation device.

[0024] Further, the top surface of the ball storage tank body is provided with a first sealing ring installation groove corresponding to the inner bottom surface of the tank cover, the outer side surface of the ball storage tank body is provided with a second sealing ring installation groove corresponding to the inner side surface of the tank cover, the first sealing ring installation groove is fixedly installed with a first sealing ring, and the second sealing ring installation groove is fixedly installed with a second sealing ring.

[0025] By adopting the above technical scheme, the double sealing structure of the first sealing ring and the second sealing ring can effectively enhance the sealing property of the ball storage tank body, prevent dust, moisture and the like from the outside from entering the tank to contaminate the tin balls, ensure the quality of the tin balls, avoid the tin balls in the tank from being affected by moisture to affect conveying, and further improve the reliability of the device. In addition, the sealing ring installation groove can fix the sealing ring, prevent the sealing ring from being displaced during closing or disassembling, and ensure the stability of the sealing effect.

[0026] The beneficial effects achieved are: The application effectively expands the tin ball storage capacity, reduces the manual adding frequency, and overcomes the defect of limited capacity of the traditional ball storage bin by setting the mounting seat higher than the tin ball separation device and the large-capacity ball storage tank body, matched with the detachable sealing tank cover; the tin ball conveying shaft is driven by the driving assembly and the guide assembly to realize precise reciprocating motion, combined with the conical inclined tin ball input hole and the elastic transparent ball falling hose with a specific size, the orderly intermittent delivery of the larger tin balls is realized; the airflow generated by the air compression assembly assists the movement of the tin balls, and the stirring assembly prevents the accumulation of the tin balls. Through the synergistic effect of multiple structures, the automatic and continuous supply of tin balls is finally realized, the problem of limited storage capacity of the ball storage bin in the existing tin ball separation device is overcome, the efficiency and stability of the larger tin balls in the long-time welding process are ensured, and the demand for tin ball supply in soft soldering is met. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall installation structure schematic diagram of an embodiment of the application.

[0028] Figure 2 is the three-dimensional structure schematic diagram of an embodiment of the application.

[0029] Figure 3 is the structure exploded schematic diagram of an embodiment of the application.

[0030] Figure 4 is the internal structure schematic diagram of the ball storage tank body in an embodiment of the application.

[0031] Figure 5 is the installation structure schematic diagram of the driving assembly in an embodiment of the application.

[0032] Figure 6 is Figure 4 is the enlarged schematic diagram of the first part structure in the air pipe connecting sleeve.

[0033] Figure 7 is Figure 4 is the enlarged schematic diagram of the second part structure in the air pipe connecting sleeve.

[0034] Figure 8 is the internal structure schematic diagram of the air pipe connecting sleeve in an embodiment of the application.

[0035] Figure 9 is the structure exploded schematic diagram of the stirring assembly in an embodiment of the application.

[0036] Figure 10 is the installation structure schematic diagram of the stirring assembly in an embodiment of the application.

[0037] 100, tin ball separating device; 101, mounting seat; 102, ball storage tank body; 103, tank cover; 104, tin ball conveying shaft; 105, tin ball conveying channel; 106, ball dropping hose; 107, air pipe connecting sleeve; 108, tin ball input hole; 109, first sealing ring mounting groove; 110, second sealing ring mounting groove; 111, first sealing ring; 112, second sealing ring; 200, driving assembly; 201, driving motor; 202, cam disc; 203, crank; 204, driving frame; 300, guiding assembly; 301, guiding shaft; 302, guiding hole; 303, sliding groove; 400, air pressing assembly; 401, piston cavity; 402, piston body; 403, air inlet mechanism; 4031, air inlet hole; 4032, first spring; 4033, air inlet ring; 4034, first valve body; 404, air outlet mechanism; 4041, air outlet hole; 4042, air outlet ring; 4043, second spring; 4044, second valve body; 500, stirring assembly; 501, driving shaft; 502, driving groove; 503, stirring frame; 504, limiting block; 505, stirring rod; 600, tin ball; 601, ball storage groove. DETAILED DESCRIPTION

[0038] The above description will be further explained in conjunction with the accompanying drawings. Figures 1 to 10 The application is further described in detail.

[0039] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The embodiment of the present application discloses a tin ball preparation device for soft soldering.

[0042] Embodiment 1 Please refer to Figures 1 to 8In an embodiment of the present application, a tin ball preparation device for soldering includes a mounting seat 101, and the mounting seat 101 and a tin ball separation device 100 are fixedly installed on a Z-axis moving mechanism of a soldering device. The mounting seat 101 is installed higher than the tin ball separation device 100. The mounting seat 101 serves as a basic bearing structure of the entire device, provides an installation reference and a support point for each component, ensures the installation stability and relative position accuracy of each component of the device, and ensures the stability of the overall structure. At the same time, the height difference between the mounting seat 101 and the tin ball separation device 100 can form gravitational potential energy, which can assist the tin ball 600 to move downward by gravity during the conveying process, reduce the resistance of the tin ball 600 during conveying, reduce the probability of blockage during conveying, and improve the conveying efficiency.

[0043] Please refer to Figures 1 to 8 In an embodiment of the present application, the mounting seat 101 is fixedly installed with a ball storage tank 102 for storing tin balls 600. The ball storage tank 102 serves as a large-capacity storage container and can accommodate a large number of tin balls 600 to continuously supply the tin ball separation device 100. Compared with a traditional ball storage bin, the ball storage tank 102 significantly increases the storage capacity of the tin balls 600, reduces the frequency of manually adding tin balls 600, and meets the supply requirements of long-time soldering.

[0044] Please refer to Figures 1 to 8 In a specific embodiment of the present application, the top of the ball storage tank 102 is detachably and sealingly connected with a tank cover 103. The tank cover 103 is detachably connected to the top of the ball storage tank 102, which facilitates opening the tank cover to add tin balls 600 into the ball storage tank 102.

[0045] Please refer to Figures 1 to 8 In an embodiment of the present application, the inside of the ball storage tank 102 is sealingly and slidably connected with a tin ball conveying shaft 104 penetrating through the bottom of the ball storage tank 102. The tin ball conveying shaft 104 can sealingly slide in the ball storage tank 102 in the axial direction, which ensures the sealing property of the ball storage tank 102 and changes the position of the tin ball conveying shaft 104 by sliding. The sealing design prevents the tin balls 600 from being damp or contaminated by the outside.

[0046] Please refer to Figures 1 to 8 In an embodiment of the present application, a tin ball conveying channel 105 is formed in the center of the tin ball conveying shaft 104. The tin ball conveying channel 105 is a path for conveying the tin balls 600 from the ball storage tank 102 to the tin ball separation device 100. The tin ball conveying channel 105 provides a directional conveying path for the tin balls 600 and ensures the accuracy of conveying.

[0047] Please refer to Figures 1 to 8In an embodiment of the present application, the tin ball conveying channel 105 penetrates through the lower end of the tin ball conveying shaft 104. The tin ball 600 is allowed to enter from the upper end of the tin ball conveying channel 105 and smoothly output from the lower end of the tin ball conveying channel 105, ensuring the through-connection of the tin ball conveying channel 105 and ensuring that the tin ball 600 can be completely conveyed through the channel to the subsequent components.

[0048] Please refer to Figures 1 to 8 In an embodiment of the present application, the lower end of the tin ball conveying shaft 104 is fixedly and sealingly connected with the ball dropping hose 106. The ball dropping hose 106 has flexibility and can flexibly deform with the sliding of the tin ball conveying shaft 104, while the sealing connection ensures the closed nature of the tin ball 600 conveying path; the ball dropping hose 106 adapts to the movement of the tin ball conveying shaft 104, avoids damage to the components due to rigid connection, and prevents the tin ball 600 from leaking during conveying.

[0049] Please refer to Figures 1 to 8 In an embodiment of the present application, the end of the ball dropping hose 106 away from the tin ball conveying shaft 104 is fixedly and sealingly connected with the air pipe connecting sleeve 107. The air pipe connecting sleeve 107 connects the ball dropping hose 106 with the tin ball separating device 100, and the sealing design ensures that there is no gap at the connection site; the air pipe connecting sleeve 107 realizes stable connection between the ball dropping hose 106 and the tin ball separating device 100, ensures the continuity of the tin ball 600 conveying path, and prevents foreign matter from entering.

[0050] Please refer to Figures 1 to 8 In an embodiment of the present application, the air pipe connecting sleeve 107 is fixedly connected to the tin ball separating device 100. The air pipe connecting sleeve 107 and the tin ball separating device 100 remain relatively stationary through the fixed connection; the position where the tin ball 600 enters the tin ball separating device 100 from the air pipe connecting sleeve 107 is stable, avoiding feed deviation due to loose connection.

[0051] Please refer to Figures 1 to 8 In an embodiment of the present application, the air pipe connecting sleeve 107 is in communication with the ball storage groove 601 of the tin ball separating device 100; the tin ball 600 conveyed through the air pipe connecting sleeve 107 directly enters the ball storage groove 601; the tin ball 600 is directly supplied from the standby device to the ball storage groove 601 of the tin ball separating device 100, ensuring the continuity of the feed.

[0052] Please refer to Figures 1 to 8In an embodiment of the present application, the outer side of the tin ball conveying shaft 104 is provided with a tin ball input hole 108 corresponding to the tin ball 600, and the tin ball input hole 108 is in communication with the tin ball conveying channel 105. The size of the tin ball input hole 108 matches the tin ball 600, and when the tin ball conveying shaft 104 slides to a specific position, the tin ball 600 in the ball storage tank 102 can enter the tin ball conveying channel 105 through the hole; the timing and quantity of the tin ball 600 entering the conveying channel are accurately controlled to avoid irregular entry of the tin ball 600 causing channel blockage.

[0053] Please refer to Figures 1 to 8 In a specific embodiment of the present application, the top surface of the ball storage tank 102 is provided with a first sealing ring installation groove 109 corresponding to the inner bottom surface of the tank cover 103, and the outer side surface of the ball storage tank 102 is provided with a second sealing ring installation groove 110 corresponding to the inner side surface of the tank cover 103. The first sealing ring installation groove 109 is fixedly installed with a first sealing ring 111 inside, and the second sealing ring installation groove 110 is fixedly installed with a second sealing ring 112 inside.

[0054] In the working process, when the tank cover 103 is closed, the first sealing ring 111 is compressed between the top surface of the ball storage tank 102 and the inner bottom surface of the tank cover 103, and the second sealing ring 112 is compressed between the outer side surface of the ball storage tank 102 and the inner side surface of the tank cover 103. Through the double sealing effect of the two sealing rings, the top of the ball storage tank 102 is sealed.

[0055] Please refer to Figures 1 to 8 In an embodiment of the present application, the mounting seat 101 is provided with a driving assembly 200 in driving connection with the tin ball conveying shaft 104. The driving assembly 200 provides power for the tin ball conveying shaft 104 to drive it to slide axially; by driving the movement of the tin ball conveying shaft 104, the communication state between the tin ball input hole 108 and the inside of the ball storage tank 102 is controlled to realize intermittent delivery of the tin ball 600 and meet the on-demand feeding.

[0056] Please refer to Figures 1 to 8 In a specific embodiment of the present application, the driving assembly 200 includes a driving motor 201 fixedly installed on the mounting seat 101, a cam disc 202 fixedly installed on the output shaft of the driving motor 201, a crank 203 hingedly connected to the cam disc 202, a driving frame 204 hingedly connected to the end of the crank 203 away from the cam disc 202, and the driving frame 204 is fixedly installed on the outer side of the tin ball conveying shaft 104 close to the lower end thereof.

[0057] In the working process, the driving motor 201 serves as a power source, and when the output shaft of the driving motor 201 rotates, the cam disc 202 fixedly installed on the output shaft of the driving motor 201 rotates synchronously. The rotating movement of the cam disc 202 is transmitted to the driving frame 204 through the articulated connecting crank 203. Since the driving frame 204 is fixed outside the solder ball conveying shaft 104, the driving frame 204 drives the solder ball conveying shaft 104 to make reciprocating sealed sliding movement in the ball storage tank 102.

[0058] It can be understood that in other embodiments of the present application, the driving assembly 200 can also be configured as a linear motor, a cam mechanism or other devices or mechanisms to achieve the purpose of driving the solder ball conveying shaft 104 to make reciprocating movement in the ball storage tank 102.

[0059] Please also refer to Figures 1 to 8 In an embodiment of the present application, the mounting seat 101 is provided with a guide assembly 300 corresponding to the driving assembly 200. The guide assembly 300 limits and guides the movement direction of the driving assembly 200, ensures stable sliding of the solder ball conveying shaft 104 driven by the driving assembly 200, improves the stability and accuracy of the driving assembly 200, ensures the movement accuracy of the solder ball conveying shaft 104, and further improves the reliability of the solder ball 600 conveying.

[0060] Please also refer to Figures 1 to 8 In a specific embodiment of the present application, the guide assembly 300 includes a guide shaft 301 fixedly installed on the mounting seat 101. The guide shaft 301 is arranged in parallel with the solder ball conveying shaft 104. The driving frame 204 is provided with a guide hole 302 corresponding to the guide shaft 301. The guide shaft 301 is slidably connected to the driving frame 204 through the guide hole 302. The mounting seat 101 is provided with a sliding groove 303 corresponding to the driving frame 204.

[0061] In the working process, the guide shaft 301 fixedly installed on the mounting seat 101 is parallel to the solder ball conveying shaft 104. The driving frame 204 is sleeved on the guide shaft 301 through the guide hole 302 on the driving frame 204. When the driving frame 204 moves under the driving of the driving assembly 200, the driving frame 204 slides along the direction of the guide shaft 301. Meanwhile, the sliding groove 303 on the mounting seat 101 further limits and guides the movement range of the driving frame 204.

[0062] Please also refer to Figures 1 to 8 In a specific embodiment of the present application, the ball falling hose 106 is made of transparent elastic material. The diameter of the solder ball 600 is d, and the inner diameter of the ball falling hose 106 is D, which satisfies 2d>D>d.

[0063] In the working process, the elasticity of the drop ball hose 106 can be deformed properly when the tin ball 600 passes through, so that the drop ball hose 106 can change position with the reciprocating movement of the tin ball conveying shaft 104, so that the tin ball 600 passes through the drop ball hose 106 smoothly, and the design that the inner diameter D is between d and 2d limits the number of tin balls 600 passing through at the same time, ensures the orderly delivery of the tin balls 600 one by one, and also helps to avoid the jamming of the tin balls 600 in the delivery process; the transparent material is beneficial to the intuitive observation of the delivery of the internal tin ball 600.

[0064] Please refer to Figures 1 to 8 In a specific embodiment of the present application, the tin ball input hole 108 is obliquely arranged in a tapered shape, the maximum diameter of the tin ball input hole 108 is D1, the minimum diameter of the tin ball input hole 108 is D2, and D1 < 2d and D2 > d are satisfied.

[0065] In the working process, the tin ball input hole 108 adopts a tapered oblique structure to guide the tin balls 600 in the ball storage tank 102, so that the tin balls 600 are more easily entered into the hole; the maximum diameter D1 of the tin ball input hole 108 is less than 2d, which limits the number of tin balls 600 entering the hole at the same time, avoiding the congestion caused by two or more tin balls passing through at the same time; and the minimum diameter D2 is greater than d, which ensures that a single tin ball 600 can smoothly pass through the hole and enter the tin ball conveying channel 105.

[0066] Embodiment 2 Please refer to Figures 1 to 8 On the basis of embodiment 1, the bottom of the ball storage tank 102 is provided with a gas pressing assembly 400 corresponding to the tin ball conveying shaft 104, the gas pressing assembly 400 includes a piston cavity 401 opened in the bottom of the ball storage tank 102, a piston body 402 is sealingly and slidably connected in the piston cavity 401, the piston body 402 is fixedly sleeved on the tin ball conveying shaft 104, an air inlet mechanism 403 is arranged on the ball storage tank 102, and an air outlet mechanism 404 is arranged on the gas pipe connecting sleeve 107.

[0067] In the working process, when the tin ball conveying shaft 104 reciprocally slides under the driving of the driving assembly 200, the piston body 402 fixedly sleeved thereon will synchronously sealingly slide in the piston cavity 401. When the piston body 402 slides downward, the space in the piston cavity 401 increases to form a negative pressure, the air inlet mechanism 403 is opened, and the external gas enters the piston cavity 401; when the piston body 402 slides upward, the space in the piston cavity 401 decreases, the air pressure increases, the air inlet mechanism 403 is closed, the gas enters the tin ball conveying channel 105 through the tin ball input hole 108, and finally is discharged through the air outlet mechanism 404; an air flow is formed in the conveying path to assist the delivery of the tin balls 600, avoiding the jamming of the tin balls.

[0068] Please refer to Figures 1 to 8In an embodiment of the present application, the air inlet mechanism 403 comprises an air inlet hole 4031, which is arranged on the sidewall of the ball storage tank 102 near the top of the piston cavity 401. A first spring 4032 is fixedly installed at the end of the air inlet hole 4031 near the piston cavity 401. An air inlet ring 4033 is fixedly installed at the end of the air inlet hole 4031 away from the piston cavity 401. A first valve body 4034 is abuttingly connected between the air inlet ring 4033 and the first spring 4032 in the air inlet hole 4031, and the first valve body 4034 seals the air inlet ring 4033.

[0069] In the working process, when the piston body 402 slides downward and a negative pressure is formed in the piston cavity 401, the external air pressure is greater than the air pressure in the piston cavity 401, which pushes the first valve body 4034 to compress the first spring 4032 and move toward the piston cavity 401, so that the first valve body 4034 is separated from the air inlet ring 4033, the air inlet hole 4031 is opened, and the external air enters the piston cavity 401 through the air inlet ring 4033 and the air inlet hole 4031. When the piston body 402 slides upward and the air pressure in the piston cavity 401 increases, the air pressure pushes the first valve body 4034 to move toward the air inlet ring 4033, and the first spring 4032 rebounds to assist the first valve body 4034 to reseal the air inlet ring 4033, so that the air inlet hole 4031 is closed and the air in the piston cavity 401 is prevented from being discharged from the air inlet hole 4031.

[0070] Please refer to Figures 1 to 8 In an embodiment of the present application, the air outlet mechanism 404 comprises an air outlet hole 4041, which is arranged on the sidewall of the air pipe connecting sleeve 107. An air outlet ring 4042 is fixedly installed at the end of the air outlet hole 4041 near the outer surface of the air pipe connecting sleeve 107. A second spring 4043 is fixedly installed at the end of the air outlet ring 4042 inside the air outlet hole 4041. A second valve body 4044 is abuttingly connected at the end of the second spring 4043 away from the air outlet ring 4042, and the second valve body 4044 seals the air outlet hole 4041.

[0071] In the working process, when the gas flow generated by the air compression assembly 400 enters the air pipe connecting sleeve 107 through the tin ball input hole 108 and the tin ball conveying channel 105, the air pressure in the air pipe connecting sleeve 107 increases to a certain extent, which pushes the second valve body 4044 to compress the second spring 4043 and move toward the air outlet ring 4042, so that the second valve body 4044 is separated from the sealing part of the air outlet hole 4041, the air outlet hole 4041 is opened, and the gas is discharged through the air outlet hole 4041 and the air outlet ring 4042. When the air pressure in the air pipe connecting sleeve 107 decreases, the second spring 4043 rebounds to push the second valve body 4044 to reseal the air outlet hole 4041, so that the external air is prevented from entering from the air outlet hole 4041.

[0072] Example 3 Please refer to Figures 1 to 10 On the basis of embodiment 2, the top of the tin ball conveying shaft 104 is drivingly connected with an agitating assembly 500, the agitating assembly 500 comprises a driving shaft 501 fixedly installed at the top of the tin ball conveying shaft 104, a driving groove 502 in a spiral line is formed on the outer surface of the driving shaft 501, an agitating frame 503 is fitted on the driving shaft 501, the agitating frame 503 is rotatably connected in the interior of the ball storage tank 102, a limiting block 504 is fixedly connected on the agitating frame 503 corresponding to the driving groove 502, the limiting block 504 is slidably connected with the driving groove 502, and an agitating rod 505 is fixedly installed on the agitating frame 503.

[0073] In the working process, when the tin ball conveying shaft 104 is driven by the driving assembly 200 to make reciprocating linear motion, the driving shaft 501 fixedly installed at the top of the tin ball conveying shaft 104 will synchronously make reciprocating linear motion. Since the agitating frame 503 is rotatably connected in the interior of the ball storage tank 102, and the limiting block 504 on the agitating frame 503 is slidably connected with the driving groove 502 in a spiral line on the driving shaft 501, the reciprocating linear motion of the driving shaft 501 is converted into the rotary motion of the agitating frame 503 through the interaction of the driving groove 502 and the limiting block 504, and further drives the agitating rod 505 fixedly installed on the agitating frame 503 to rotate in the ball storage tank 102, so as to agitate the tin balls 600 in the tank.

[0074] The implementation principle of the tin ball preparation device for soft soldering is as follows: The device is based on the installation seat 101 for support, the ball storage tank 102 stores a large number of tin balls 600, and the double sealing structure of the tank cover 103 ensures the quality and sealing conditions of the tin balls. In the working process, the driving motor 201 of the driving assembly 200 drives the cam disc 202 to rotate, and the rotary motion is converted into the reciprocating sliding of the tin ball conveying shaft 104 through the crank 203 and the driving frame 204, and the guide shaft 301 and the sliding groove 303 of the guide assembly 300 ensure the smooth and accurate movement.

[0075] When the tin ball conveying shaft 104 slides to make the tin ball input hole 108 communicate with the interior of the ball storage tank 102, the tin balls 600 fall into the tin ball conveying channel 105 under the action of gravity and the agitating assembly 500. The agitating assembly 500 drives the agitating frame 503 to rotate through the reciprocating motion of the driving shaft 501, so that the tin balls are uniformly distributed and are prevented from being accumulated.

[0076] The tin balls 600 fall along the tin ball conveying channel 105, enter the ball storage groove 601 of the tin ball separation device 100 through the elastic transparent ball falling hose 106 and the air pipe connecting sleeve 107. At the same time, the reciprocating motion of the tin ball conveying shaft 104 drives the piston body 402 of the air pressure assembly 400 to slide in the piston cavity 401, and the air flow is generated by cooperating with the air inlet mechanism 403 and the air outlet mechanism 404, so as to assist the tin ball conveying and clean the path.

[0077] The device realizes automatic and continuous supply of the solder balls through cooperation of the components, overcomes the problem of limited storage capacity of the ball storage bin in the existing solder ball separation device, guarantees the efficiency and stability of feeding of the solder balls with large volume in a long-time welding process, and meets the demand of soldering for supply of the solder balls.

[0078] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A solder ball preparation device for soldering, characterized in that: The invention comprises a mounting seat (101), wherein the mounting seat (101) is higher than the mounting position of the solder ball separation device (100), a ball storage tank body (102) for storing solder balls (600) is fixedly mounted on the mounting seat (101), the top of the ball storage tank body (102) is detachably sealed and connected to a tank cover (103), the interior of the ball storage tank body (102) is sealed and slidably connected to a solder ball conveying shaft (104) passing through the bottom thereof, a solder ball conveying channel (105) is provided at the center of the solder ball conveying shaft (104), the solder ball conveying channel (105) passes through the lower end of the solder ball conveying shaft (104), and the lower end of the solder ball conveying shaft (104) is fixedly sealed and connected to a dropper. A ball hose (106), one end of the ball-dropping hose (106) away from the solder ball conveying shaft (104) is fixedly and sealedly connected to an air pipe connecting sleeve (107), the air pipe connecting sleeve (107) is fixedly connected to the solder ball separation device (100), and the air pipe connecting sleeve (107) is communicated with the ball storage tank (601) of the solder ball separation device (100); a solder ball input hole (108) is opened on the outer side of the solder ball conveying shaft (104) corresponding to the solder ball (600), and the solder ball input hole (108) is communicated with the solder ball conveying channel (105); a driving component (200) is installed on the mounting seat (101) and is transmission-connected to the solder ball conveying shaft (104).

2. The solder ball preparation device for soldering according to claim 1, characterized in that: The driving assembly (200) includes a driving motor (201), the driving motor (201) is fixedly mounted on the mounting seat (101), a cam disc (202) is fixedly mounted on the output shaft of the driving motor (201), a crank (203) is hingedly connected to the cam disc (202), and an end of the crank (203) away from the cam disc (202) is hingedly connected to a driving frame (204), and the driving frame (204) is fixedly mounted on the outer side of the solder ball conveying shaft (104) near its lower end.

3. The solder ball preparation device for soldering according to claim 2, characterized in that: A guide assembly (300) is mounted on the mounting seat (101) in correspondence with the driving assembly (200), and the guide assembly (300) includes a guide shaft (301) fixedly mounted on the mounting seat (101), and the guide shaft (301) is arranged parallel to the solder ball conveying shaft (104). A guide hole (302) is provided on the driving frame (204) in correspondence with the guide shaft (301), and the guide shaft (301) is slidably connected to the driving frame (204) through the guide hole (302). A sliding groove (303) is provided on the mounting seat (101) in correspondence with the driving frame (204).

4. The solder ball preparation device for soldering according to claim 1, characterized in that: The bottom of the ball storage tank body (102) is provided with a compressed air assembly (400) corresponding to the tin ball conveying shaft (104), and the compressed air assembly (400) includes a piston chamber (401) opened at the bottom of the ball storage tank body (102), and a piston body (402) is sealed and slidably connected inside the piston chamber (401), and the piston body (402) is fixedly sleeved on the tin ball conveying shaft (104). The ball storage tank body (102) is provided with an air intake mechanism (403), and the air pipe connecting sleeve (107) is provided with an exhaust mechanism (404).

5. The solder ball preparation device for soldering according to claim 4, characterized in that: The air intake mechanism (403) includes an air intake hole (4031), which is opened on the side wall of the ball storage tank body (102) near the top of the piston chamber (401); a first spring (4032) is fixedly installed at one end of the air intake hole (4031) near the piston chamber (401); an air intake ring (4033) is fixedly installed at one end of the air intake hole (4031) away from the piston chamber (401); a first valve body (4034) is abutted and connected between the air intake ring (4033) and the first spring (4032) inside the air intake hole (4031); and the first valve body (4034) closes the air intake ring (4033).

6. The solder ball preparation device for soldering according to claim 4, characterized in that: The exhaust mechanism (404) comprises an exhaust hole (4041), wherein the exhaust hole (4041) is provided on the side wall of the trachea connecting sleeve (107), an exhaust ring (4042) is fixedly mounted on one end of the exhaust hole (4041) close to the outer surface of the trachea connecting sleeve (107), a second spring (4043) is fixedly mounted on one end of the exhaust ring (4042) located inside the exhaust hole (4041), and an end of the second spring (4043) away from the exhaust ring (4042) is abutted against a second valve body (4044), and the second valve body (4044) closes the exhaust hole (4041).

7. The solder ball preparation device for soldering according to claim 1, characterized in that: The top of the solder ball conveying shaft (104) is connected to a stirring assembly (500) in a transmission manner. The stirring assembly (500) includes a driving shaft (501), which is fixedly mounted on the top of the solder ball conveying shaft (104). The outer surface of the driving shaft (501) is provided with a driving groove (502) arranged in a spiral line. A stirring frame (503) is fitted on the driving shaft (501). The stirring frame (503) is rotatably connected to the inside of the ball storage tank body (102). A limiting block (504) is fixedly connected to the stirring frame (503) corresponding to the driving groove (502). The limiting block (504) is slidably connected to the driving groove (502). A stirring rod (505) is fixedly mounted on the stirring frame (503).

8. The solder ball preparation device for soldering according to claim 1, characterized in that: The ball drop hose (106) is made of an elastic transparent material, the diameter of the tin ball (600) is d, and the inner diameter of the ball drop hose (106) is D, satisfying the following relationship: 2d>D>d.

9. The solder ball preparation device for soldering according to claim 8, characterized in that: The solder ball input hole (108) is arranged in a conical oblique direction, the maximum diameter of the solder ball input hole (108) is D1, and the minimum diameter of the solder ball input hole (108) is D2, satisfying: D1<2d, D2>d.

10. A solder ball preparation device for soldering according to any one of claims 1 to 9, characterized in that: A first sealing ring mounting groove (109) is formed on the top surface of the ball storage tank body (102) corresponding to the inner bottom surface of the tank cover (103), and a second sealing ring mounting groove (110) is formed on the outer side surface of the ball storage tank body (102) corresponding to the inner side surface of the tank cover (103). A first sealing ring (111) is fixedly mounted inside the first sealing ring mounting groove (109), and a second sealing ring (112) is fixedly mounted inside the second sealing ring mounting groove (110).

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