Tin melting furnace and using method thereof

Abstract

The invention belongs to the technical field of tin melting furnaces and discloses a tin melting furnace and a using method thereof.The tin melting furnace comprises a support, a base is arranged at the lower end of the support, the side wall of the base is fixedly connected with the support through a connecting piece, a crucible and a flow guiding device which are fixedly connected are arranged at one end of the support, and the crucible comprises an inner container; a heater is arranged on the outer side wall of the inner container, the lower end of the inner container is fixedly connected with a flow guide device, an X-axis guide rail and a Y-axis guide rail are arranged in the base, are perpendicular to each other and are fixedly connected with the base, and the heater is arranged on the outer side wall of the inner container, so that the inner container is accurately heated, the tin melting efficiency is improved, and the tin melting efficiency is improved. The lower end of the inner container is fixedly connected with the flow guiding device, the flowing path of the tin liquid is shortened, in the tin filling process, the tin scraping unit can scrape away residual tin on the inner side wall of the inner container along with movement of the flow guiding device, and the purity and quality of the tin liquid are guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of solder melting furnace technology, and relates to a solder melting furnace and its usage method. Background Technology

[0002] In the fields of electronics manufacturing and aerospace-grade cable assembly processing, stainless steel tubular parts often require internal tinning before bending to enhance structural rigidity and prevent deformation during subsequent processes. Current technology typically employs the following pretreatment method for tinning stainless steel tubing: tin bars or ingots are placed in an open crucible and heated to a molten state using an external heat source such as a resistance wire, gas flame, or hot plate; an operator then uses a hand-held pouring tool to pour the molten tin into the vertically placed stainless steel tubing, relying on gravity to complete the filling.

[0003] Molten tin is exposed to air for extended periods and is significantly affected by ambient temperature, especially in winter or in ventilated environments. Liquid tin cools and solidifies rapidly in the flow path, making it difficult to continuously and stably inject into slender tubes. Furthermore, the pouring process relies on manual operation, making it difficult to precisely repeat the flow rate, timing, and position. Only a small number of workpieces can be processed at a time, failing to meet the requirements of multiple varieties, small batches, and high consistency. Moreover, the heating process lacks precise temperature control capabilities, resulting in large temperature fluctuations. This can easily lead to localized overheating and aging of the molten tin, oxidation and scaling, or low-temperature precipitation, affecting its fluidity and wettability, and causing incomplete pouring, cavities, or porosity defects. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a solder melting furnace and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a solder melting furnace, including a support frame, a base at the lower end of the support frame, and a side wall of the base fixedly connected to the support frame via a connector. A crucible and a flow guiding device are fixedly connected at one end of the support frame. The crucible includes an inner liner, a heater is provided on the outer side wall of the inner liner, and the lower end of the inner liner is fixedly connected to the flow guiding device. An X-axis guide rail and a Y-axis guide rail are provided inside the base, the X-axis guide rail and the Y-axis guide rail are perpendicular to each other and are both fixedly connected to the base.

[0006] Furthermore, the crucible also includes an outer shell disposed on the outer side wall of the heater. The outer shell is fixedly connected to the inner liner. A solder scraping unit is disposed inside the inner liner. The solder scraping unit is fixedly connected to the flow guiding device through a fixing component. A temperature sensor is disposed at the upper end of the solder scraping unit.

[0007] Furthermore, the lower end of the inner liner and the lower end of the outer shell are provided with an outlet that communicates with each other, and the lower end of the inner liner is conical.

[0008] Furthermore, the flow guiding device includes a mounting plate, a mounting shaft, and a fixing plate fixedly mounted on one end of the mounting plate. Locking sleeves are respectively provided at both ends of one side of the fixing plate, and the mounting shaft passes through the locking sleeves and is fixedly connected to the fixing plate.

[0009] Furthermore, a locking block is fixedly connected to the mounting shaft, a throttling control valve is provided at the upper end of the locking block, the throttling control valve is used to fix the connection with the crucible, and a guide nozzle is provided at the lower end of the locking block.

[0010] Furthermore, the support includes a truss, one end of which is provided with a first fixed frame and the other end with a second fixed frame. A heating controller is fixedly connected to the first fixed frame, and a soldering controller is fixedly connected to the second fixed frame.

[0011] Furthermore, the first and second fixing frames are provided with first mounting holes, through which the connector passes and is fixedly connected to the base; the truss is provided with second mounting holes, through which the connector passes and is fixedly connected to the crucible.

[0012] Furthermore, the X-axis guide rail is driven by an X-axis servo motor, and the Y-axis guide rail is driven by a Y-axis servo motor.

[0013] Furthermore, a fixture is also provided inside the base, and the fixture is fixedly installed on the X-axis guide rail or the Y-axis guide rail.

[0014] The present invention also provides a method of using a solder melting furnace, which includes the following steps: putting the solder to be melted into the inner liner, placing the workpiece to be filled with solder on the base; heating the solder in the inner liner with a heater until the solder melts into molten solder; adjusting the position of the workpiece to be filled with solder through the X-axis guide rail and the Y-axis guide rail, and aligning it with the outlet of the flow guiding device; and injecting the molten solder in the inner liner into the workpiece through the flow guiding device.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention discloses a solder melting furnace. One end of the support is fixedly connected to a crucible and a flow guiding device. A heater is installed on the outer wall of the inner liner to precisely heat the inner liner, improving the solder melting efficiency and reducing heat loss and residue during the solder transfer process. The lower end of the inner liner is fixedly connected to the flow guiding device, shortening the flow path of the solder. The base is equipped with mutually perpendicular X-axis and Y-axis guide rails that are fixedly connected to the base, which can adapt to the positioning requirements of workpieces of different specifications and positions. The position can be precisely adjusted according to actual needs, improving production efficiency.

[0016] This invention discloses a solder melting furnace. The solder pouring controller, based on the workpiece positioning in the control system, controls the rotation angle and speed of the X-axis and Y-axis servo motors via pulse signals. Simultaneously, it controls the opening degree of the throttling control valve, allowing molten solder to flow from the crucible into the guiding device, and then through the throttling control valve and guide nozzle onto the workpiece. During the solder pouring process, a solder scraping unit, moving with the guiding device, scrapes away residual solder from the inner wall of the inner liner, ensuring the purity and quality of the molten solder.

[0017] The present invention discloses a solder melting furnace with a cylindrical inner chamber that provides ample space for solder to meet the needs of mass production. The lower end has a conical structure that uses gravity to guide the molten solder to the bottom, thus preventing molten solder from remaining in the cavity.

[0018] This invention discloses a solder melting furnace. The heating controller automatically adjusts the heating power of the heater based on the difference between a preset temperature and the actual monitored temperature to control the temperature of the molten solder. When the molten solder temperature reaches the set temperature, the heater automatically reduces its power to enter a heat preservation state; when the temperature is lower than the set temperature, the heater 32 automatically increases its power to heat the solder, ensuring that the temperature of the molten solder is always maintained within the set range. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a solder melting furnace according to the present invention; Figure 2 This is a schematic diagram of the base structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the support structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the crucible structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the flow guiding device in an embodiment of the present invention.

[0020] Figure label: 1-Base; 2-Bracket; 21-Truss; 22-First fixing frame; 23-Second fixing frame; 24-Heating controller; 25-Soldering controller; 3-Cruise; 31-Inner liner; 32-Heater; 33-Outer shell; 34-Soldering unit; 35-Temperature sensor; 4-Flow guiding device; 41-Mounting plate; 42-Mounting shaft; 43-Fixing plate; 44-Locking sleeve; 45-Locking block; 46-Throttle control valve; 47-Flow guide nozzle. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] Example 1 like Figure 1 As shown, this invention discloses a solder melting furnace, comprising a support 2, with a base 1 at the lower end of the support 2. The side wall of the base 1 is fixedly connected to the support 2 via a connector. A crucible 3 and a flow guiding device 4 are fixedly connected to one end of the support 2. The crucible 3 includes an inner liner 31, with a heater 32 disposed on the outer side wall of the inner liner 31. The lower end of the inner liner 31 is fixedly connected to the flow guiding device 4. An X-axis guide rail and a Y-axis guide rail are disposed inside the base 1, the X-axis guide rail and the Y-axis guide rail being perpendicular to each other and both fixedly connected to the base 1. This invention solves the technical problems in existing solder melting and pouring processes, such as uncontrollable temperature, discontinuous pouring, inaccurate positioning, and reliance on manual operation, which affect product quality and production efficiency. The solder melting furnace includes a base 1, a support 2, a crucible 3, and a flow guiding device 4. The base 1 has mutually perpendicular X-axis and Y-axis guide rails inside for guidance. The support 2 is mounted on the base 1 to support the crucible 3. The crucible 3 contains a heater 32 and a solder scraping unit 34. The heater 32 heats the solder, and the solder scraping unit 34 removes residual solder, preventing solder buildup on the inner wall and waste. The flow guiding device 4 is connected to the crucible 3 to guide the molten solder out, thus completing the soldering process.

[0023] Heater 32 heats the tin bars or tin ingots in the inner liner 31 to a molten state; the liquid tin flows into the guide device 4 through the outlet at the lower end of the inner liner 31; the X-axis guide rail and Y-axis guide rail drive the fixture to move along a preset path under the drive of the servo motor, realizing continuous tin pouring at multiple stations; the crucible 3 removes the oxide scale on the surface of the molten tin at regular intervals; the whole process does not require manual intervention.

[0024] Example 2 The base 1 is provided with an X-axis guide rail and a Y-axis guide rail. The X-axis guide rail and the Y-axis guide rail are perpendicular to each other and are fixedly connected to the base 1. The base 1 is also provided with a fixture, which is fixedly installed on the X-axis guide rail or the Y-axis guide rail.

[0025] Specifically: Inside the base 1, there are mutually perpendicular X-axis and Y-axis guide rails. The X-axis guide rail is arranged along the length of the base 1, and the Y-axis guide rail is arranged along the width of the base 1. A slider connecting mechanism is set at the intersection of the two to install the fixture. The slider connecting mechanism not only ensures the flatness and firmness of the fixture after installation, but also allows for smooth and non-jamming displacement following the movement of the slider. The X-axis guide rail is driven by an X-axis servo motor, and the Y-axis guide rail is driven by a Y-axis servo motor. The X-axis and Y-axis servo motors are fixed to the side wall of the internal cavity of the base 1 by motor mounts, and their output shafts are connected to the ball screws of the guide rails via couplings. According to the commands issued by the control system, the X-axis and Y-axis servo motors drive the ball screws to rotate, thereby causing the slider to move linearly along the guide rails. The fixture is fixedly mounted on the sliders of the X-axis and Y-axis guide rails. When the control system issues a displacement command, the X-axis servo motor or the Y-axis servo motor drives the fixture to move along the X-axis or Y-axis, conveying the workpiece to be filled with solder to the bottom of the guide device 4. This accommodates workpieces of different specifications and positions, thereby meeting the soldering requirements of different workpieces, such as... Figure 2 As shown.

[0026] like Figure 3 As shown, the support 2 includes a truss 21. One end of the truss 21 has a first fixed frame 22, and the other end has a second fixed frame 23. A heating controller 24 is fixedly connected to the first fixed frame 22, and is connected to the heater 32 and temperature sensor 35 of the crucible 3 via wires to control the heating power of the heater 32 and adjust the temperature of the inner liner 31 of the crucible 3. A solder pouring controller 25 is fixedly connected to the second fixed frame 23, and is connected to an X-axis servo motor, a Y-axis servo motor, and a throttling control valve 46 via wires to control the movement of the X-axis or Y-axis guide rail for precise workpiece positioning. The opening of the throttling control valve 46 adjusts the flow rate of molten solder. First mounting holes are provided on the horizontal surfaces of the first fixed frame 22 and the second fixed frame 23. When installing the support 2, the connector is threaded through the first mounting hole and connected to the base 1. A second mounting hole is provided on the truss 21 for fixed connection to the crucible 3 to prevent the crucible 3 from shaking or shifting.

[0027] The length and width of the truss 21 are adjusted according to the base 1 and the crucible 3 to ensure that tipping is avoided. The heating controller 24 integrates a microprocessor, power regulation module, signal receiving module and display panel, and has the functions of temperature setting, real-time monitoring and automatic adjustment. The heating controller 24 is electrically connected to the heater 32 and temperature sensor 35 of the crucible 3 through wires, and is wrapped with a flame-retardant insulating sleeve to prevent damage to the wires in the high temperature environment. The heating controller 24 adjusts the heating power of the heater 32 according to the signal fed back by the temperature sensor 35, thereby controlling the temperature of the inner liner 31 of the crucible 3. The soldering controller 25 is connected to the X-axis servo motor, the Y-axis servo motor and the throttling control valve 46 through wires. It uses pulse signal transmission with the X-axis servo motor and the Y-axis servo motor, and analog signal transmission with the throttling control valve 46.

[0028] The solder pouring controller 25 has two functions: first, it controls the rotation angle and speed of the X-axis servo motor and the Y-axis servo motor through pulse signals according to the positioning of the workpiece in the control system; second, it adjusts the opening of the throttling control valve 46 according to the requirements of the pouring and milling, thereby controlling the outflow of solder liquid.

[0029] The crucible 3 includes an inner liner 31, a heater 32 is provided on the outer wall of the inner liner 31, the lower end of the inner liner 31 is fixedly connected to the flow guiding device 4, the crucible 3 also includes an outer shell 33 provided on the outer wall of the heater 32, the outer shell 33 is fixedly connected to the inner liner 31, a solder scraping unit 34 is provided inside the inner liner 31, the solder scraping unit 34 is fixedly connected to the flow guiding device 4 by a fixing member, a temperature sensor 35 is provided at the upper end of the solder scraping unit 34, and the lower end of the inner liner 31 and the lower end of the outer shell 33 are provided with an outlet that communicates with each other, the lower end of the inner liner 31 is conical.

[0030] Specifically: the crucible 3 includes an inner liner 31, a heater 32, an outer shell 33, a solder scraping unit 34, and a temperature sensor 35. The inner liner 31 is used to hold the solder. The internal space of the inner liner 31 is cylindrical, providing ample space for the solder to meet the needs of mass production. The lower end has a conical structure, which uses gravity to guide the molten solder to the bottom, preventing molten solder from remaining in the cavity and ensuring that the molten solder can flow out completely. The lower end of the inner liner 31 is provided with an outlet, which is connected to the outlet at the lower end of the outer shell 33 to form an outlet channel for the molten solder. Figure 4 As shown.

[0031] The heater 32 is wrapped around the outer wall of the inner liner 31 and provides heat for melting the solder by electric heating. The shape of the heater 32 fits tightly with the outer wall of the inner liner 31, ensuring that heat can be quickly transferred to the inside of the inner liner 31 by heat conduction, thereby increasing the melting speed of the solder. In addition, the power of the heater 32 can be adjusted by the heating controller 24.

[0032] The outer shell 33 is disposed on the outer side wall of the heater 32 and is fixedly connected to the inner liner 31 to form a closed heat-insulating chamber. The lower end of the outer shell 33 is flush with the lower end of the inner liner 31, allowing the molten solder to flow smoothly into the guide device 4 through the outlet. The outer shell 33 is preferably a double-layer structure, with an inner insulating layer and an outer protective layer, reducing heat loss from the inner liner 31 and heater 32 to the outside, improving heat insulation, and reducing energy consumption. The interior of the heat-insulating chamber is sealed, effectively preventing the entry of external cold air.

[0033] The solder scraping unit 34 is located inside the inner liner 31 and is fixedly connected to the flow guiding device 4 via a fastener. When the flow guiding device 4 drives the solder scraping unit 34 to move up and down, it can scrape off the residual solder adhering to the inner wall of the inner liner 31, preventing solder from accumulating on the inner wall and causing waste. A temperature sensor 35 is installed at the upper end of the solder scraping unit 34, with its probe extending into the solder inside the inner liner 31 to monitor the temperature of the molten solder in real time. The temperature sensor 35 transmits the monitored temperature signal to the heating controller 24 in real time. The heating controller 24 automatically adjusts the heating power of the heater 32 based on the difference between the preset set temperature and the actual monitored temperature to control the temperature of the molten solder. When the molten solder temperature reaches the set temperature, the heater 32 automatically reduces its power to enter a heat preservation state; when the temperature is lower than the set temperature, the heater 32 automatically increases its power to heat the solder, ensuring that the temperature of the molten solder is always maintained within the set range.

[0034] The flow guiding device 4 includes a mounting plate 41, a mounting shaft 42, a fixing plate 43, a locking sleeve 44, a locking block 45, a throttling control valve 46, and a flow guiding nozzle 47. The mounting plate 41 is fixedly connected to the bracket 2 and the fixing plate 43. The fixing plate 43 is fixedly installed on one end of the mounting plate 41, and locking sleeves 44 are respectively provided at both ends of one side. The mounting shaft 42 passes through the locking sleeves 44 and is fixedly connected to the fixing plate 43, thus fixing the mounting shaft 42 onto the fixing plate 43. A locking block 45 is fixedly connected to the mounting shaft 42. A throttling control valve 46 is provided at the upper end of the locking block 45. The throttling control valve 46 is used to control the flow rate of molten solder flowing from the crucible 3 into the flow guiding device 4. By adjusting the opening of the throttling control valve 46, the amount of molten solder entering the flow guiding device 4 is controlled. A flow guiding nozzle 47 is provided at the lower end of the locking block 45. Figure 5 As shown.

[0035] The outlet shape and size of the guide nozzle 47 can be customized according to different soldering requirements, so that the molten solder can flow out in a suitable shape and flow rate, improving the accuracy and quality of soldering. In addition, the guide nozzle 47 should have good high temperature resistance and corrosion resistance.

[0036] In summary, the workpiece to be soldered is placed on the fixture. The control system, according to a preset program, issues a displacement command, activating the X-axis or Y-axis servo motor to move the fixture along the X or Y axis, accurately conveying the workpiece to the area below the flow guide device 4. Simultaneously, the heating controller 24, based on feedback from the temperature sensor 35, controls the heater 32 to heat the solder in the crucible 3, melting it to a preset temperature. When the workpiece reaches the designated position and the solder is liquid, the soldering controller 25 opens the throttling control valve 46, allowing the molten solder to flow from the crucible 3 into the flow guide device 4, passing through the throttling control valve 46 and the flow nozzle 47 before being poured onto the workpiece. During the soldering process, the solder scraping unit 34, moving with the flow guide device 4, scrapes away residual solder from the inner wall of the inner liner 31, ensuring the purity and quality of the molten solder and meeting the soldering requirements of workpieces of different specifications, significantly improving production efficiency and product quality.

[0037] Example 3 A method of using a solder melting furnace includes the following steps: immersing the solder to be melted into the inner liner 31, placing the workpiece to be filled with solder on the base 1; heating the solder in the inner liner 31 using a heater 32 until the solder melts into liquid solder; adjusting the position of the workpiece to be filled using the X-axis guide rail and the Y-axis guide rail, and aligning it with the outlet of the flow guiding device 4; and injecting the liquid solder in the inner liner 31 into the workpiece through the flow guiding device 4.

[0038] Specifically, first, the solder is placed into the inner liner 31 of the crucible 3, and then the heater 32 is activated. The heating controller 24 controls the heater 32 to start heating according to preset temperature parameters. The solder in the inner liner 31 gradually heats up and melts. The temperature sensor 35 monitors the temperature of the molten solder in the inner liner 31 in real time and feeds the temperature signal back to the heating controller 24. When the temperature reaches the set value, the heating controller 24 automatically adjusts the heating power of the heater 32 to keep the temperature of the molten solder within the preset range and to ensure that the molten solder is in a flowing state.

[0039] The X-axis or Y-axis guide rail inside the base 1 is driven by the X-axis and Y-axis servo motors, moving the fixture mounted on the guide rail to the appropriate position so that the workpiece can accurately receive the molten solder. Then, the solder pouring controller 25 controls the throttling control valve 46 to open, and the molten solder in the inner tank 31 flows into the guide device 4 through the outlet at the lower end of the inner tank 31 and the outer shell 33 under the action of gravity. When the molten solder passes through the throttling control valve 46, it flows out from the guide nozzle 47 and drips onto the workpiece located on the fixture. During the solder pouring process, the solder scraping unit 34 continuously scrapes off the molten solder adhering to the inner wall of the inner tank 31, allowing the molten solder to flow out smoothly. At the same time, the temperature sensor 35 continuously monitors the temperature of the molten solder, and the heating controller 24 adjusts the working state of the heater 32 in real time according to the temperature feedback to ensure that the temperature of the molten solder remains stable throughout the solder pouring process.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

Claims

1. A tin melting furnace, characterized in that: The system includes a support (2), a base (1) at the lower end of the support (2), and the side wall of the base (1) is fixedly connected to the support (2) via a connector. One end of the support (2) is provided with a crucible (3) and a flow guide device (4) that are fixedly connected. The crucible (3) includes an inner liner (31), and a heater (32) is provided on the outer side wall of the inner liner (31). The lower end of the inner liner (31) is fixedly connected to the flow guide device (4). The base (1) is provided with an X-axis guide rail and a Y-axis guide rail. The X-axis guide rail and the Y-axis guide rail are perpendicular to each other and are fixedly connected to the base (1).

2. The tin melting furnace according to claim 1, characterized in that: The crucible (3) also includes an outer shell (33) disposed on the outer side wall of the heater (32). The outer shell (33) is fixedly connected to the inner liner (31). The inner liner (31) is provided with a solder scraping unit (34). The solder scraping unit (34) is fixedly connected to the flow guiding device (4) through a fixing member. A temperature sensor (35) is provided at the upper end of the solder scraping unit (34).

3. The tin melting furnace according to claim 2, characterized in that: The lower end of the inner liner (31) and the lower end of the outer shell (33) are provided with an outlet that communicates with each other, and the lower end of the inner liner (31) is conical.

4. The tin melting furnace according to claim 1, characterized in that: The flow guiding device (4) includes a mounting plate (41), a mounting shaft (42), and a fixing plate (43) fixedly mounted on one end of the mounting plate (41). Locking sleeves (44) are respectively provided at both ends of one side of the fixing plate (43). The mounting shaft (42) passes through the locking sleeves (44) and is fixedly connected to the fixing plate (43).

5. The tin melting furnace according to claim 4, characterized in that: A locking block (45) is fixedly connected on the mounting shaft (42). A throttling control valve (46) is provided at the upper end of the locking block (45). The throttling control valve (46) is used to be fixedly connected to the crucible (3). A guide nozzle (47) is provided at the lower end of the locking block (45).

6. The solder melting furnace according to claim 1, characterized in that: The bracket (2) includes a truss (21), one end of which is provided with a first fixed frame (22) and the other end is provided with a second fixed frame (23). A heating controller (24) is fixedly connected to the first fixed frame (22), and a soldering controller (25) is fixedly connected to the second fixed frame (23).

7. The tin melting furnace according to claim 6, characterized in that: The first fixing frame (22) and the second fixing frame (23) are provided with a first mounting hole, and the connector passes through the first mounting hole and is fixedly connected to the base (1); The truss (21) is provided with a second mounting hole, and the connector passes through the second mounting hole and is fixedly connected to the crucible (3).

8. The tin melting furnace according to claim 1, characterized in that: The X-axis guide rail is driven by an X-axis servo motor, and the Y-axis guide rail is driven by a Y-axis servo motor.

9. The tin melting furnace according to claim 8, characterized in that: The base (1) is also provided with a fixture, which is fixedly installed on the X-axis guide rail or the Y-axis guide rail.

10. A method of using a solder melting furnace, based on the solder melting furnace according to any one of claims 1-9, characterized in that, Includes the following steps: The molten tin is poured into the inner liner (31), and the workpiece to be filled with tin is placed on the base (1); Heat the tin material in the inner liner (31) using a heater (32) until the tin material melts into liquid tin; The position of the workpiece to be injected is adjusted by the X-axis guide rail and the Y-axis guide rail, and aligned with the outlet of the flow guiding device (4); The molten tin in the inner liner (31) is injected into the workpiece through the guide device (4).

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