A TO tube socket eutectic welding device

Abstract

The present application relates to the field of semiconductor welding technology, and in particular to a TO tube socket eutectic welding device, comprising a welding frame, a fixing seat is provided on the welding frame, a positioning groove for the pins on the TO tube socket to be plugged in is provided on the fixing seat, a feeding mechanism is provided on the welding frame, the feeding mechanism is used to press the heat sink against the lead pin, the welding frame is provided with a heating component for heating the lead pin, the heating component comprises an irradiation heat source lamp provided on the welding frame, a focusing piece is provided on the irradiation heat source lamp, and the focusing piece focuses the irradiation light of the irradiation heat source lamp on the lead pin. The present application has the effect of reducing the source consumption during welding.

Description

Technical Field

[0001] The present application relates to the technical field of semiconductor welding, and in particular to a TO tube socket eutectic welding device. Background Art

[0002] Eutectic welding is a welding technology applied to TO sockets, also known as eutectic reaction welding or eutectic alloy welding, which refers to two or more metals forming a common crystal structure in liquid state.

[0003] TO socket (Transistor Outline) is a common packaging form of electronic components. TO socket is usually made of metal or plastic material, and its appearance is cylindrical or flat. It is mainly composed of a semiconductor chip body, and pins and lead pillars are connected on both sides of the chip body. During use, a heat sink needs to be welded on the lead pillars, and then these pins can be used to connect with other electronic components. It is mainly used for the packaging of semiconductor devices such as transistors and diodes.

[0004] A Chinese patent with announcement number CN114799389A discloses a TO tube socket eutectic welding machine, which relates to the field of semiconductor technology, including a machine base, a heating platform arranged on the machine base, and a positioning rod slidably arranged on the machine base, the positioning rod slides above the heating platform, and a driving component for driving the positioning rod to slide is provided on the machine base. A welding groove for placing the TO tube socket is provided on the heating platform, and a heating element for heating the area around the welding groove is provided in the heating platform. The lower end of the positioning rod is used to press against a heat sink on the lead pin.

[0005] During the use of the above technology, the heating element needs to continuously heat the heating table, so that after the temperature of the heating table rises, the heat is transferred to the heat sink through the lead pin, so that the alloy solder on the heat sink is melted by the high temperature and the heat sink is welded to the lead pin. In the process of heat being transferred from the heating table to the lead pin, the heating table will radiate and consume a large amount of heat, which will cause energy waste. Moreover, since the heating table is always in a high temperature state, the staff may accidentally touch the heating table when installing the TO tube holder, causing harm to the staff. There are shortcomings. Summary of the invention

[0006] In order to improve the energy waste problem caused by the heating table, the present application provides a TO tube socket eutectic welding device.

[0007] The TO socket eutectic welding device provided in this application adopts the following technical solution:

[0008] A TO tube socket eutectic welding device comprises a welding frame, wherein a fixing seat is provided on the welding frame, a positioning groove for inserting a pin on the TO tube socket is provided on the fixing seat, a feeding mechanism is provided on the welding frame, the feeding mechanism is used to press a heat sink against a lead pin, the welding frame is provided with a heating component for heating the lead pin, the heating component comprises an irradiation heat source lamp arranged on the welding frame, the irradiation heat source lamp is provided with a focusing piece, and the focusing piece focuses the irradiation light of the irradiation heat source lamp on the lead pin.

[0009] By adopting the above technical solution, the worker first inserts the TO tube holder into the positioning groove on the fixing seat through the pin, and then the feeding mechanism presses the heat sink against the lead pin of the TO tube holder. Finally, the worker uses the focusing piece to focus the light emitted by the irradiating heat source lamp on the lead pin to heat the lead pin. The alloy solder on the heat sink is melted by the high temperature on the lead pin and then the heat sink is welded to the lead pin. After the welding is completed, the worker removes the focusing piece and places the TO tube holder in the collection area. At this time, the irradiating heat source lamp increases the light for the location of the fixing seat, which is convenient for the worker to transfer the welded TO tube holder and fix the next TO tube holder on the fixing seat. In this process, only the lead pin is heated. The lead pin is small in size and heats quickly, which reduces the heat loss during the heating process. At the same time, the fixing seat will not be heated, reducing the possibility of worker injury.

[0010] Optionally, the focusing member includes a focusing tube coaxially arranged on the irradiation heat source lamp, a focusing frame is rotatably arranged on the focusing tube, an axis rod is arranged on the focusing frame, the axis rod is rotatably extended out of the focusing tube, and a focusing lens is arranged on the focusing frame.

[0011] By adopting the above technical solution, when the heat sink is pressed against the lead pin of the TO tube socket, the worker rotates the shaft, and the shaft drives the focusing lens to rotate through the focusing frame. The focusing lens focuses the light emitted by the heat source lamp on the lead pin, thereby achieving the effect of heating the lead pin.

[0012] Optionally, a focusing cone ring is intersected on the focusing tube on the side opposite to the focusing frame facing away from the irradiation heat source lamp, a focusing tube is coaxially arranged on the focusing cone ring, a heat-resistant reflective layer is arranged on the inner wall of the focusing tube, the focusing focus of the focusing lens falls on the heat-resistant reflective layer in the focusing tube, and the end of the focusing tube facing away from the focusing cone ring points to the guide pillar.

[0013] By adopting the above technical scheme, the focusing lens focuses the light emitted by the heat source lamp on the heat-resistant reflective layer. The focused light is continuously reflected on the heat-resistant reflective layer in the focusing tube and emitted from its outlet end, forming a light spot at the irradiation point of the lead post. While ensuring the heating of the lead post, the possibility of damage to the lead post due to rapid heating of the lead post is reduced. When the heating of the lead post is completed, the worker rotates the focusing cone ring and the focusing frame to illuminate the heat source lamp onto the TO tube socket on the fixing seat, making it convenient for the worker to insert the new TO tube socket into the positioning groove of the fixing seat.

[0014] Optionally, the feeding mechanism includes a support frame arranged on the welding frame, a lifting motor electrically connected to the control system is arranged on the support frame, a lifting screw is coaxially arranged on the output shaft of the lifting motor, a sleeve is arranged on the support frame, the sleeve is sleeved on the lifting screw, a lifting block is threadedly connected to the lifting screw, one end of the lifting block extends to the outside of the sleeve, a lifting groove is opened on the sleeve along its axial direction for the lifting block to slide, a carrying rod for placing a heat sink is arranged on the lifting block, and the carrying rod is used to press the heat sink against the guide column.

[0015] By adopting the above technical solution, the worker installs the heat sink on the carrier rod, and then starts the lifting motor through the control system. The output shaft of the lifting motor drives the lifting screw to rotate. Under the guidance of the lifting groove, the lifting screw drives the lifting block to approach the TO tube holder on the fixed seat. The lifting block drives the heat sink on the carrier rod to be pressed tightly against the lead pin of the TO tube holder, which is beneficial to reduce the possibility of the heat sink falling off the lead pin during the heating process of the lead pin.

[0016] Optionally, a steering wheel is provided on the lifting block, a clamping groove communicating with the lifting groove is circumferentially opened between the inner and outer side walls of the sleeve, the clamping groove is slidably matched with the lifting block, and the carrier rod is provided on the steering wheel.

[0017] By adopting the above technical solution, when the lifting screw drives the lifting block to slide to the position where the lifting groove and the clamping groove are connected, as the lifting screw continues to rotate, the lifting block slides from the lifting groove to the clamping groove, and the lifting block drives the steering wheel to rotate around the axis of the sleeve. The steering wheel drives the heat sink on the carrier rod to be pressed against the guide column of the TO tube socket. The change in position of the carrier rod as the steering wheel rotates makes it convenient for workers to install the heat sink on the carrier rod.

[0018] Optionally, a tensioning groove is provided on the steering wheel, a tensioning block is slidably provided on the tensioning groove, the carrier rod is provided on the tensioning block, a tensioning spring is supported between the tensioning block and the tensioning groove, and the tensioning spring is used to press the carrier rod against the guide column.

[0019] By adopting the above technical solution, when the carrier rod presses the heat sink onto the lead pin of the TO tube socket, the tension spring is continuously compressed, and the rigid contact between the carrier rod and the lead pin is changed into flexible contact, which is helpful to reduce the possibility of the lead pin on the TO tube socket being damaged by the carrier rod.

[0020] Optionally, a material carrying plate is provided on the material carrying rod, a supporting protrusion is provided on the material carrying plate, and the heat sink is placed on the supporting protrusion.

[0021] By adopting the above technical solution, it is convenient for workers to place the heat sink on the carrier plate, and it is also convenient to separate the heat sink from the carrier plate after the heat sink is welded on the lead pin.

[0022] Optionally, an angle frame is provided on the welding frame, the focusing tube is rotatably provided on the angle frame, an angle gear ring is provided on the focusing tube relative to its rotation center, an angle motor electrically connected to the control system is provided on the angle frame, and an angle gear meshing with the angle gear ring is provided on the output shaft of the angle motor.

[0023] By adopting the above technical solution, workers start the angle motor through the control system. The output shaft of the angle motor drives the angle gear to rotate. The angle gear drives the focusing tube to rotate around its rotation center through the angle gear ring, so as to adjust the light emitted from the light-emitting end of the focusing tube to point to the guide column of the TO tube holder on the fixed seat.

[0024] Optionally, a temperature sensor electrically connected to a control system is provided on the focusing tube, a heat dissipation port is opened on the focusing tube, and a heat dissipation fan electrically connected to a control system is provided at the heat dissipation port of the focusing tube.

[0025] By adopting the above technical solution, the temperature sensor feeds back the temperature inside the focusing tube to the control system. When the temperature inside the focusing tube is too high, the control system starts the cooling fan, and the cooling fan dissipates heat to the focusing tube through the heat dissipation port, which helps to reduce the possibility of damage to parts inside the focusing tube when the temperature inside the focusing tube is too high.

[0026] Optionally, an angle seat is provided on the welding frame, the angle frame is rotatably provided on the angle seat, a scale is provided on the angle seat, and a pointer is provided on the angle frame.

[0027] By adopting the above technical solution, workers rotate the angle racks so that the pointers on multiple angle racks all point to the same scale on the corresponding angle seats, thereby facilitating workers to adjust the angles of the angle racks on multiple devices.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The worker first inserts the TO tube holder into the positioning groove on the fixing seat through the pin, and then the feeding mechanism presses the heat sink against the lead pin of the TO tube holder. Finally, the worker uses the focusing piece to focus the light emitted by the irradiation heat source lamp on the lead pin to heat the lead pin. The alloy solder on the heat sink is melted by the high temperature on the lead pin and then the heat sink is welded to the lead pin. After the welding is completed, the worker removes the focusing piece and places the TO tube holder in the collection area. At this time, the irradiation heat source lamp increases the light for the location of the fixing seat, which is convenient for the worker to transfer the welded TO tube holder and fix the next TO tube holder on the fixing seat. In this process, only the lead pin is heated. The lead pin is small in size and heats quickly, which reduces the heat loss during the heating process. At the same time, the fixing seat will not be heated, reducing the possibility of worker injury.

[0030] 2. The focusing lens focuses the light emitted by the heat source lamp on the heat-resistant reflective layer. The focused light is continuously reflected on the heat-resistant reflective layer in the focusing tube and emitted from its outlet end, forming a light spot at the irradiation point of the lead pin. While ensuring the heating of the lead pin, the possibility of damage to the lead pin caused by rapid temperature rise is reduced. When the heating of the lead pin is completed, the worker rotates the focusing cone ring and the focusing frame to irradiate the heat source lamp on the TO tube socket on the fixing seat, which is convenient for the worker to insert the new TO tube socket into the positioning groove of the fixing seat;

[0031] 3. When the lifting screw drives the lifting block to slide to the position where the lifting groove and the pressing groove are connected, as the lifting screw continues to rotate, the lifting block slides from the lifting groove to the pressing groove, and the lifting block drives the steering wheel to rotate around the axis of the sleeve. The steering wheel drives the heat sink on the carrier rod to be pressed against the guide column of the TO tube socket. The position change of the carrier rod as the steering wheel rotates makes it convenient for workers to install the heat sink on the carrier rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0033] Figure 2 It is a structural schematic diagram of the positional relationship among the carrying rod, lifting screw and fixing seat in the embodiment of the present application.

[0034] Figure 3 It is a cross-sectional view showing the positional relationship among the heat-resistant reflective layer, the focusing lens and the irradiation heat source lamp in the embodiment of the present application.

[0035] Explanation of the reference numerals: 1. welding frame; 2. fixing seat; 3. positioning slot; 4. feeding mechanism; 41. support frame; 42. lifting motor; 43. lifting screw; 44. sleeve; 45. lifting block; 46. lifting slot; 47. loading rod; 5. heating assembly; 51. irradiation heat source lamp; 52. focusing element; 521. focusing tube; 522. focusing frame; 523. shaft rod; 524. focusing lens; 6. focusing Conical ring; 7. Focusing tube; 8. Heat-resistant reflective layer; 9. Steering wheel; 10. Compression groove; 11. Tensioning groove; 12. Tensioning block; 13. Tensioning spring; 14. Loading plate; 15. Supporting protrusion; 16. Angle frame; 17. Angle gear ring; 18. Angle motor; 19. Angle gear; 20. Temperature sensor; 21. Heat dissipation port; 22. Cooling fan; 23. Angle seat; 24. Scale; 25. Pointer. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] The embodiment of the present application discloses a TO tube socket eutectic welding device.

[0038] Reference Figure 1 A TO tube socket eutectic welding device includes a welding frame 1, a fixing seat 2 is bolted to the welding frame 1, a plurality of positioning grooves 3 for inserting pins on the TO tube socket are opened on the top of the fixing seat 2, the positioning grooves 3 correspond to the pins on the TO tube socket one by one, and a feeding mechanism 4 is arranged on the welding frame 1, and the feeding mechanism 4 is used to press the heat sink against the lead pin.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The feeding mechanism 4 includes a support frame 41 bolted to the welding frame 1, a lifting motor 42 electrically connected to the control system is bolted to the support frame 41, a vertical lifting screw 43 is coaxially welded to the output shaft of the lifting motor 42, a sleeve 44 is bolted to the support frame 41, the sleeve 44 is coaxially sleeved on the lifting screw 43, a lifting block 45 is threadedly connected to the lifting screw 43, and the lifting block 45 slides with the inner wall of the sleeve 44.

[0040] Reference Figure 1 , Figure 2 and Figure 3 One end of the lifting block 45 extends to the outside of the sleeve 44, and a lifting groove 46 for the lifting block 45 to slide is opened on the sleeve 44 along its axial direction. A steering wheel 9 is welded on the lifting block 45, and the steering wheel 9 is coaxially slidably sleeved on the sleeve 44. A horizontal clamping groove 10 that communicates with the lifting groove 46 is circumferentially opened between the inner and outer side walls of the sleeve 44, and the clamping groove 10 is slidably matched with the lifting block 45.

[0041] Reference Figure 1 , Figure 2 and Figure 3 A tensioning groove 11 is provided on the steering wheel 9, and a tensioning block 12 is slidably arranged on the tensioning groove 10. The cross-sections of the tensioning block 12 and the tensioning groove 11 are both T-shaped. A loading rod 47 is welded on the tensioning block 12, and a loading plate 14 is welded on the loading rod 47. A supporting protrusion 15 is integrally formed on the loading plate 14, and the heat sink is placed on the supporting protrusion 15. A tensioning spring 13 is supported between the tensioning block 12 and the tensioning groove 11. The tensioning spring 13 is used to press the loading plate 14 on the loading rod 47 onto the guide column, so that the heat sink on the loading plate 14 is pressed onto the guide column.

[0042] The worker first inserts the TO tube socket into the positioning groove 3 of the fixing seat 2 through the pin, and then places the heat sink on the supporting protrusion 15 on the loading plate 14. After that, the lifting motor 42 is started through the control system. The output shaft of the lifting motor 42 drives the lifting screw 43 to rotate. Under the guidance of the lifting groove 46 opened on the sleeve 44, the lifting screw 43 drives the lifting block 45 to approach the TO tube socket on the fixing seat 2.

[0043] As the lifting block 45 continues to slide, when the lifting block 45 slides to the position where the lifting groove 46 is connected to the clamping groove 10, as the lifting screw 43 continues to rotate, the lifting block 45 slides from the lifting groove 46 to the clamping groove 10, and the lifting block 45 drives the steering wheel 9 to rotate around the axis of the sleeve 44. The steering wheel 9 drives the carrier rod 47 to approach the guide column on the TO tube socket through the tensioning block 12 until the carrier rod 47 presses the heat sink onto the guide column of the TO tube socket through the carrier plate 14. During this process, the tensioning spring 13 is continuously compressed until the lifting block 45 stops rotating around the axis of the sleeve 44.

[0044] Reference Figure 1 , Figure 2 and Figure 3 A heating assembly 5 for heating the lead pillar is arranged on the welding frame 1. The heating assembly 5 includes an irradiation heat source lamp 51 arranged on the welding frame 1. A focusing piece 52 is arranged on the irradiation heat source lamp 51. The focusing piece 52 focuses the irradiation light of the irradiation heat source lamp 51 on the lead pillar.

[0045] Reference Figure 1 , Figure 2 and Figure 3 The focusing member 52 includes a focusing tube 521 coaxially bolted to the irradiation heat source lamp 51, a focusing frame 522 is rotatably arranged in the focusing tube 521, a shaft 523 is bolted to the focusing frame 522, the shaft 523 rotates and passes through the focusing tube 521, a focusing lens 524 is bolted to the focusing frame 522, a temperature sensor 20 electrically connected to the control system is bolted to the focusing tube 521, a heat dissipation port 21 is opened on the focusing tube 521, and a heat dissipation fan 22 electrically connected to the control system is bolted to the heat dissipation port 21 of the focusing tube 521.

[0046] Reference Figure 1 , Figure 2 and Figure 3 A focusing cone ring 6 is connected to the focusing tube 521 on the side opposite to the focusing frame 522 and facing away from the heat source lamp 51. A focusing tube 7 is coaxially welded on the focusing cone ring 6. A heat-resistant reflective layer 8 is welded on the inner wall of the focusing tube 7. The heat-resistant reflective layer 8 can be made of aluminum plate in the prior art. The focusing focus of the focusing lens 524 falls on the heat-resistant reflective layer 8 in the focusing tube 7, and the end of the focusing tube 7 facing away from the focusing cone ring 6 points to the guide column.

[0047] Reference Figure 1 , Figure 2 and Figure 3 An angle seat 23 is bolted to the welding frame 1, and an angle frame 16 is rotatably connected to the angle seat 23. A scale 24 is provided on the angle seat 23, and a pointer 25 is bolted to the angle frame 16. The focusing tube 521 is rotatably arranged on the angle frame 16, and an angle gear ring 17 is welded to the focusing tube 521 relative to its rotation center. An angle motor 18 electrically connected to the control system is bolted to the angle frame 16, and an angle gear 19 meshing with the angle gear ring 17 is welded to the output shaft of the angle motor 18.

[0048] The worker starts the irradiation heat source lamp 51 through the control system, and then the worker rotates the focusing cone ring 6 so that the light emitted by the irradiation heat source lamp 51 is emitted by the focusing tube 7. Then the worker rotates the angle of the angle seat 23, and then starts the angle motor 18 through the control system. The output shaft of the angle motor 18 drives the angle gear 19 to rotate, and the angle gear 19 drives the focusing tube 521 to rotate through the angle gear ring 17.

[0049] The light emitted by the focusing tube 7 is irradiated onto the guide column, and finally the shaft 523 is twisted. The shaft 523 drives the focusing frame 522 to rotate, so that the focusing frame 522 drives the focusing lens 524 to rotate synchronously, so that the focusing lens 524 irradiates the light emitted by the heat source lamp 51 onto the heat-resistant reflective layer 8 in the focusing tube 7. The focused light is emitted from the focusing tube 7 to the guide column to form a high-temperature light spot, thereby achieving a heating effect on the guide column.

[0050] The implementation principle of a TO tube socket eutectic welding device in an embodiment of the present application is as follows: a worker first inserts the TO tube socket into the positioning groove 3 of the fixing seat 2 through a pin, and then places the heat sink on the supporting protrusion 15 on the carrier plate 14, and then starts the lifting motor 42 through the control system, and the output shaft of the lifting motor 42 drives the lifting screw 43 to rotate, and the lifting block 45 is guided by the lifting groove 46 opened on the sleeve 44, and the lifting screw 43 drives the lifting block 45 to approach the TO tube socket on the fixing seat 2.

[0051] As the lifting block 45 continues to slide, when the lifting block 45 slides to the position where the lifting groove 46 is connected to the clamping groove 10, as the lifting screw 43 continues to rotate, the lifting block 45 slides from the lifting groove 46 to the clamping groove 10, and the lifting block 45 drives the steering wheel 9 to rotate around the axis of the sleeve 44. The steering wheel 9 drives the carrier rod 47 to approach the guide column on the TO tube socket through the tensioning block 12 until the carrier rod 47 presses the heat sink onto the guide column of the TO tube socket through the carrier plate 14. During this process, the tensioning spring 13 is continuously compressed until the lifting block 45 stops rotating around the axis of the sleeve 44.

[0052] The worker starts the irradiation heat source lamp 51 through the control system, and then the worker rotates the focusing cone ring 6 so that the light emitted by the irradiation heat source lamp 51 is emitted by the focusing tube 7. Then the worker rotates the angle of the angle seat 23, and then starts the angle motor 18 through the control system. The output shaft of the angle motor 18 drives the angle gear 19 to rotate, and the angle gear 19 drives the focusing tube 521 to rotate through the angle gear ring 17.

[0053] The light emitted by the focusing tube 7 is irradiated onto the guide column, and finally the shaft 523 is twisted. The shaft 523 drives the focusing frame 522 to rotate, so that the focusing frame 522 drives the focusing lens 524 to rotate synchronously, so that the focusing lens 524 irradiates the light emitted by the heat source lamp 51 onto the heat-resistant reflective layer 8 in the focusing tube 7. The focused light is emitted from the focusing tube 7 to the guide column to form a high-temperature light spot, thereby achieving a heating effect on the guide column.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A TO socket eutectic welding device, characterized in that: The invention comprises a welding frame (1), wherein a fixing seat (2) is arranged on the welding frame (1), and a positioning groove (3) for inserting a pin on a TO tube seat is provided on the fixing seat (2); a feeding mechanism (4) is arranged on the welding frame (1), and the feeding mechanism (4) is used to press a heat sink against a lead pin; the feeding mechanism (4) comprises a support frame (41) arranged on the welding frame (1), and a lifting motor (42) electrically connected to a control system is arranged on the support frame (41); a lifting screw (43) is coaxially arranged on the output shaft of the lifting motor (42); a sleeve (44) is arranged on the lifting screw (43), and the lifting screw (43) A lifting block (45) is connected to the upper thread, one end of the lifting block (45) extends to the outside of the sleeve (44), and a lifting groove (46) is provided on the sleeve (44) along its axial direction for the lifting block (45) to slide. The lifting block (45) is provided with a carrying rod (47) for placing a heat sink, and the carrying rod (47) is used to press the heat sink against the guide column. The welding frame (1) is provided with a heating component (5) for heating the guide column, and the heating component (5) includes an irradiation heat source lamp (51) arranged on the welding frame (1), and the irradiation heat source lamp (51) is provided with a focusing piece (52), and the focusing piece (52) focuses the irradiation light of the irradiation heat source lamp (51) on the guide column.

2. A TO socket eutectic welding device according to claim 1, characterized in that: The focusing member (52) comprises a focusing tube (521) coaxially arranged on the irradiation heat source lamp (51); a focusing frame (522) is rotatably arranged on the focusing tube (521); a shaft (523) is arranged on the focusing frame (522); the shaft (523) is rotatably extended out of the focusing tube (521); and a focusing lens (524) is arranged on the focusing frame (522).

3. A TO socket eutectic welding device according to claim 2, characterized in that: A focusing cone ring (6) is connected to the focusing tube (521) on the side opposite to the focusing frame (522) and facing away from the irradiation heat source lamp (51); a focusing tube (7) is coaxially arranged on the focusing cone ring (6); a heat-resistant reflective layer (8) is arranged on the inner wall of the focusing tube (7); the focusing focus of the focusing lens (524) falls on the heat-resistant reflective layer (8) in the focusing tube (7); and one end of the focusing tube (7) facing away from the focusing cone ring (6) points to the guide column.

4. A TO socket eutectic welding device according to claim 1, characterized in that: A steering wheel (9) is arranged on the lifting block (45); a clamping groove (10) communicating with the lifting groove (46) is circumferentially provided between the inner and outer side walls of the sleeve (44); the clamping groove (10) is slidably matched with the lifting block (45); and the object-carrying rod (47) is arranged on the steering wheel (9).

5. A TO socket eutectic welding device according to claim 4, characterized in that: The steering wheel (9) is provided with a tensioning groove (11), a tensioning block (12) is slidably arranged on the tensioning groove (11), the load-carrying rod (47) is arranged on the tensioning block (12), a tensioning spring (13) is supported between the tensioning block (12) and the tensioning groove (11), and the tensioning spring (13) is used to press the load-carrying rod (47) onto the guide column.

6. A TO socket eutectic welding device according to claim 1, characterized in that: The material carrying rod (47) is provided with a material carrying plate (14), the material carrying plate (14) is provided with a supporting protrusion (15), and the heat sink is placed on the supporting protrusion (15).

7. A TO socket eutectic welding device according to claim 2, characterized in that: The welding frame (1) is provided with an angle frame (16), the focusing tube (521) is rotatably provided on the angle frame (16), an angle gear ring (17) is provided on the focusing tube (521) relative to its rotation center, the angle frame (16) is provided with an angle motor (18) electrically connected to a control system, and an angle gear (19) meshing with the angle gear ring (17) is provided on the output shaft of the angle motor (18).

8. A TO socket eutectic welding device according to claim 3, characterized in that: The focusing tube (521) is provided with a temperature sensor (20) electrically connected to the control system, the focusing tube (521) is provided with a heat dissipation port (21), and a heat dissipation fan (22) electrically connected to the control system is provided at the heat dissipation port (21) of the focusing tube (521).

9. A TO socket eutectic welding device according to claim 7, characterized in that: The welding frame (1) is provided with an angle seat (23), the angle frame (16) is rotatably provided on the angle seat (23), the angle seat (23) is provided with a scale (24), and the angle frame (16) is provided with a pointer (25).

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