Automatic tin soldering machine for production of electronic components

Abstract

The invention discloses an automatic tin soldering machine for electronic component production, and belongs to the technical field of tin soldering machines, the automatic tin soldering machine comprises a cabinet, an adjusting mechanism is arranged in the cabinet, a tin soldering head is mounted on the adjusting mechanism, a fixing mechanism is arranged on one side of the adjusting mechanism, and the fixing mechanism comprises a group of upper clamping plate and lower clamping plate which are symmetrically arranged; component bodies to be welded are fixed in the upper clamping plate and the lower clamping plate. Through cooperation of an electric sliding block and a second electric push rod, a tin soldering head can be accurately moved to the position, needing to be welded, of an electronic component body, automatic welding is achieved, the upper portion and the lower portion of the component body are clamped through an upper clamping plate and a lower clamping plate correspondingly, and compared with traditional single-clamping-plate clamping, the clamping efficiency is greatly improved. According to the arrangement, the stability of the component body with the non-planar side face in the welding process can be remarkably improved, and then the welding quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of soldering machines, and in particular relates to an automatic soldering machine used for producing electronic components. Background Art

[0002] In the production process of electronic components, soldering is a key process link in connecting electronic components. Its quality and efficiency have a vital impact on product performance and production efficiency.

[0003] In the prior art, the patent with announcement number CN211915760U discloses an automatic soldering device for electronic components, including a base, the top of the base is fixedly connected to a hydraulic push rod, the top of the hydraulic push rod is fixedly connected to a top plate, and the bottom of the top plate is provided with a first groove, a second groove, a third groove and a fourth groove; this invention, through the operation of the first motor, can drive the first threaded column to rotate, and with the help of the sliding cooperation between the first slide rod and the first slide sleeve, the first threaded sleeve and the first slide sleeve can drive the second movable rod to move left and right. The device realizes automatic adjustment of the soldering position of the soldering iron tip through the first motor, the second motor, the first slide rod, the first slide sleeve, the second slide rod and the second slide sleeve, thereby achieving the purpose of automatic soldering, abandoning the traditional manual soldering method, with high work efficiency, saving time and labor, and the whole device has a reasonable structure, is easy to use and has strong practicality.

[0004] The problem with the existing technology is that the above-mentioned automated soldering device for electronic components only fixes the electronic components through springs and clamps. During the welding process, it is easy for the electronic components to be displaced and the springs on both sides to contract or extend accordingly due to external force collision. For some electronic components with non-planar sides, the stability of the clamping structure is even worse, which seriously affects the welding quality. Summary of the Invention

[0005] In response to the problems existing in the prior art, the present invention provides an automatic soldering machine for the production of electronic components, which has the advantages of high stability in clamping electronic components and improved welding quality, and solves the problem that the clamping structure of the existing device has poor stability and seriously affects the welding quality.

[0006] The present invention is implemented as follows: an automatic soldering machine for the production of electronic components includes a cabinet, and is characterized in that: an adjustment mechanism is provided inside the cabinet, a solder head is installed on the adjustment mechanism, a fixing mechanism is provided on one side of the adjustment mechanism, and the fixing mechanism includes a group of symmetrically arranged upper and lower clamping plates, and the upper and lower clamping plates fix the component bodies to be soldered.

[0007] As a preferred embodiment of the present invention, the adjustment mechanism includes a slide rail, the slide rail is fixedly installed on the cabinet, an electric slider is slidably connected to the slide rail, and a mounting bracket is fixedly installed on the electric slider.

[0008] As a preferred embodiment of the present invention, a second electric push rod is fixedly mounted on the upper end of the mounting frame, an output end of the second electric push rod is fixedly connected to a mounting plate, the mounting plate is slidably connected to the mounting frame, and the solder head is fixedly mounted on the mounting plate.

[0009] As a preferred embodiment of the present invention, the fixing mechanism also includes a support frame, which is arranged in the cabinet, one end of the support frame is fixedly connected to an installation box, one end of the installation box is fixedly installed with a motor, a first screw is rotatably installed in the installation box, both ends of the first screw are threadedly connected to a first screw sleeve, the first screw sleeve is slidably connected to the inner wall of the installation box, and one end of the first screw sleeve is fixedly connected to the output end of the motor.

[0010] As a preferred embodiment of the present invention, the upper clamping plate is fixedly connected to the lower surface of the first nut, the lower clamping plate is hinged to the lower end of the upper clamping plate, and the upper end of the lower clamping plate is coaxially fixedly connected to a gear.

[0011] As a preferred embodiment of the present invention, one side of the gear is meshedly connected with a rack, the rack is slidably connected to a limit plate, and the limit plate is fixedly connected to one side of the upper clamping plate.

[0012] As a preferred embodiment of the present invention, a first electric push rod is fixedly installed on one side of the installation box, an output end of the first electric push rod is fixedly connected to a lifting plate, and the lifting plate is movably inserted into the through hole.

[0013] As a preferred embodiment of the present invention, both ends of the lifting plate are slidably connected to the limiting sliders, the lower surface of the limiting slider is fixedly connected to a lifting rod, the lifting rod slides through the upper end of the limiting plate and the bottom is fixedly connected to the rack.

[0014] As a preferred embodiment of the present invention, the lifting rod includes an upper rod body, a spring and a lower rod body, the upper end of the upper rod body is fixedly connected to the lower surface, the lower end of the lower rod body is fixedly connected to the rack, an upper threaded groove is provided on the outer surface of the upper rod body, and a lower threaded groove is provided on the outer surface of the lower rod body, and the rotation directions of the upper threaded groove and the lower threaded groove are opposite, the spring includes an upper part and a lower part that are fixedly connected, the rotation directions of the upper part and the lower part are opposite, the upper part is connected to the upper threaded groove, and the lower end of the lower part is connected to the lower threaded groove.

[0015] As a preferred embodiment of the present invention, a second screw sleeve is fixedly connected between the upper and lower parts of the spring, a rod is inserted into the second screw sleeve, one end of the rod is provided with an external thread, and the rack is provided with a plurality of vertically arranged sockets, the rod can be inserted into one of the sockets, and the external thread can be threadedly connected to the second screw sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can accurately move the soldering head to the position where the electronic component body needs to be soldered through the cooperation of the electric slider and the second electric push rod, thereby realizing automatic soldering.

[0018] 2. The present invention clamps the upper and lower parts of the component body respectively by the upper and lower clamping plates. Compared with the traditional single clamping, this setting can significantly improve the stability of the component body with non-planar side during the welding process, thereby improving the welding quality.

[0019] 3. The present invention slidingly cooperates with the lifting plate and the inner wall of the through hole. When the upper splint moves left and right, the lifting plate acts as a limiter to prevent the lower and middle parts of the upper splint from shifting. When the lifting plate moves up and down, the upper splint also acts as a limiter to the lifting plate to prevent the two ends of the lifting plate from tilting. The two cooperate with each other to improve the stability of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Example 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of a partial three-dimensional structure of Example 1 of the present invention;

[0022] Figure 3 This is a front view structural diagram of the fixing mechanism of Example 1 of the present invention;

[0023] Figure 4 For Example 1 of the present invention Figure 3 A magnified view of the structure at center A;

[0024] Figure 5 This is a schematic diagram of a partially cutaway three-dimensional structure of a fixing mechanism according to Example 1 of the present invention;

[0025] Figure 6 This is a partial cross-sectional perspective structural diagram of a fixing mechanism according to Example 2 of the present invention;

[0026] Figure 7 For Example 2 of the present invention Figure 6 Enlarged view of the structure at point B in the middle.

[0027] In the figure: 1. cabinet; 2. fixing mechanism; 21. support frame; 22. mounting box; 23. motor; 24. first electric push rod; 25. lifting plate; 26. upper clamping plate; 261. through hole; 27. lower clamping plate; 28. gear; 29. ​​rack; 210. limit plate; 211. lifting rod; 212. limit slider; 213. first screw; 214. first screw sleeve; 3. adjustment mechanism; 31. slide rail; 32. electric slider; 33. mounting frame; 34. second electric push rod; 35. mounting plate; 4. solder head; 5. component body; 2111. upper rod; 2112. lower rod; 2113. upper thread groove; 2114. lower thread groove; 2115. upper part; 2116. lower part; 6. second screw sleeve; 7. plug rod; 8. external thread; 9. socket. DETAILED DESCRIPTION

[0028] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0029] The structure of the present invention is described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] like Figures 1 to 5 As shown, an automatic soldering machine for electronic component production provided by an embodiment of the present invention includes a cabinet 1, an adjustment mechanism 3 is provided inside the cabinet 1, a soldering head 4 is mounted on the adjustment mechanism 3, and a fixing mechanism 2 is provided on one side of the adjustment mechanism 3. The fixing mechanism 2 includes a set of symmetrically arranged upper clamping plates 26 and lower clamping plates 27, and a component body 5 to be soldered is fixed in the upper clamping plates 26 and lower clamping plates 27. The sidewalls of the component body 5 can be in the shape of a regular step, an inverted step, an arc, a regular trapezoid, or an inverted trapezoid.

[0032] Furthermore, the adjustment mechanism 3 includes a slide rail 31, which is fixedly installed on the cabinet 1. An electric slider 32 is slidably connected to the slide rail 31, and a mounting bracket 33 is fixedly installed on the electric slider 32. A second electric push rod 34 is fixedly installed on the upper end of the mounting bracket 33, and an output end of the second electric push rod 34 is fixedly connected to a mounting plate 35. The mounting plate 35 is slidably connected to the mounting bracket 33, and the solder head 4 is fixedly installed on the mounting plate 35.

[0033] During the specific setting, the electric slider 32 slides along the slide rail 31, driving the mounting frame 33 and the solder head 4 to move synchronously, thereby adjusting the position of the solder head 4. The second electric push rod 34 can drive the mounting plate 35 to slide vertically on the mounting frame 33, thereby adjusting the height of the solder head 4. Through the cooperation of the electric slider 32 and the second electric push rod 34, the solder head 4 can be accurately moved to the position where the electronic component body 5 needs to be soldered.

[0034] Furthermore, the fixing mechanism 2 also includes a support frame 21, which is arranged in the cabinet 1, and one end of the support frame 21 is fixedly connected to the installation box 22, and one end of the installation box 22 is fixedly installed with a motor 23, and a first screw 213 is rotatably installed in the installation box 22, and both ends of the first screw 213 are threadedly connected to the first screw sleeve 214, the first screw sleeve 214 is slidingly connected to the inner wall of the installation box 22, one end of the first screw sleeve 214 is fixedly connected to the output end of the motor 23, and the upper splint 26 is fixedly connected to the lower surface of the first screw sleeve 214.

[0035] In this application, the support frame 21 plays a supporting and fixing role for the entire fixing mechanism 2. The first screw sleeves 214 at both ends are driven by the motor 23 to move synchronously closer to or farther away from the mounting box 22, driving the upper clamping plate 26 to move synchronously, thereby clamping or releasing the component body 5. This setting can quickly and accurately fix electronic components of different specifications and has a wide range of applications.

[0036] Furthermore, the lower splint 27 is hinged to the lower end of the upper splint 26, and the upper end of the lower splint 27 is coaxially fixedly connected to a gear 28, one side of the gear 28 is meshed with a rack 29, and the rack 29 is slidably connected to the limit plate 210, and the limit plate 210 is fixedly connected to one side of the upper splint 26.

[0037] This application is designed for electronic components whose two ends are not planar. The upper part of the component body 5 is clamped by the upper clamping plate 26, and the lower clamping plate 27 is rotated to clamp the lower part of the component body 5. Compared with the traditional single clamping, the simultaneous clamping method of the upper clamping plate 26 and the lower clamping plate 27 can significantly improve the stability of the component body 5 with non-planar high side surfaces during the welding process, thereby improving the welding quality.

[0038] Furthermore, a first electric push rod 24 is fixedly installed on one side of the installation box 22, and the output end of the first electric push rod 24 is fixedly connected to a lifting plate 25, which is movably inserted into the through hole 261. Both ends of the lifting plate 25 are slidably connected to the limiting slider 212, and the lower surface of the limiting slider 212 is fixedly connected to the lifting rod 211, which slides through the upper end of the limiting plate 210 and is fixedly connected to the rack 29 at the bottom.

[0039] Specifically, the upper clamping plate 26 moves synchronously with the first screw sleeve 214 until it clamps the upper parts of both sides of the component body 5, and then the lifting plate 25 is driven downward by starting the first electric push rod 24. The lifting rod 211 drives the rack 29 to move downward synchronously, and the gear 28 rotates accordingly, so that the lower clamping plate 27 is pressed against the lower parts of both sides of the component body 5 to achieve stable clamping of the component body 5. In this process, the lifting plate 25 slides with the inner wall of the through hole 261. When the upper clamping plate 26 moves left and right, the lifting plate 25 acts as a limiter to prevent the lower and middle parts of the upper clamping plate 26 from shifting. When the lifting plate 25 moves up and down, the upper clamping plate 26 also acts as a limiter to the lifting plate 25 to prevent the two ends of the lifting plate 25 from tilting. The two cooperate with each other to improve the stability of the overall operation.

[0040] Example 2

[0041] See Figure 1-Figure 7 The lifting rod 211 includes an upper rod body 2111, a spring and a lower rod body 2112. The upper end of the upper rod body 2111 is fixedly connected to the lower surface of the limiting slider 212, and the lower end of the lower rod body 2112 is fixedly connected to the rack 29. The outer surface of the upper rod body 2111 is provided with an upper thread groove 2113, and the outer surface of the lower rod body 2112 is provided with a lower thread groove 2114. The rotation directions of the upper thread groove 2113 and the lower thread groove 2114 are opposite. The spring includes an upper part 2115 and a lower part 2116 that are fixedly connected. The rotation directions of the upper part 2115 and the lower part 2116 are opposite. The upper part 2115 is connected to the upper thread groove 2113, and the lower end of the lower part 2116 is connected to the lower thread groove 2114.

[0042] A second nut 6 is fixedly connected between the upper portion 2115 and the lower portion 2116 of the spring, and a rod 7 is inserted into the second nut 6. One end of the rod 7 is provided with an external thread 8. The rack 29 is provided with a plurality of vertically arranged sockets 9. The rod 7 can be inserted into one of the sockets 9, and the external thread 8 can be threadedly connected to the second nut 6. A screw groove is provided at the lower end of the lower clamping plate 27, and a stud is rotatably connected in the screw groove. The stud is an elastic rubber stud. Through this arrangement, the stud can be screwed into or out of the screw groove, so that the length of the lower clamping plate 27 can be increased according to actual conditions. Since the stud is an elastic rubber stud, it can fit the side of the component body 5.

[0043] The working principle of this embodiment is as follows:

[0044] Working principle of elastic clamping and limiting: When using an automatic soldering machine to fix electronic components, the upper clamping plate 26, driven by the motor 23, first clamps the upper parts of both sides of the component body 5. Then, the first electric push rod 24 is activated to drive the lifting plate 25 downward. The lifting rod 211 is composed of an upper rod body 2111, a spring, and a lower rod body 2112. During the downward movement of the lifting plate 25, the lower clamping plate 27 first contacts the side of the component body 5. At this time, the lifting plate 25 can continue to descend. Due to the presence of the spring, the spring is compressed, and the lower clamping plate 27 continues to rotate until the lifting plate 25 presses against the upper surface of the component body 5, thereby achieving a joint limit on the upper surface and side surfaces of the component. In addition, because the springs in the lifting rods 211 on both sides can be elastically compressed to different degrees, the lower clamping plates 27 on both sides can rotate to different inclinations to adapt to the side surfaces of components with different shapes.

[0045] The spring adjustment mechanism consists of an upper portion 2115 and a lower portion 2116, which rotate in opposite directions. These are connected to the upper threaded groove 2113 of the upper rod 2111 and the lower threaded groove 2114 of the lower rod 2112, respectively. By rotating the spring, the amount of spring extending into the upper and lower threaded grooves 2113 and 2114 can be increased or decreased, thereby changing the initial length of the entire lifting rod 211. As the spring extends further into the threaded grooves, the initial length of the lifting rod 211 shortens, allowing the initial height of the rack 29 to be adjusted to accommodate the gripping requirements of objects of varying inclinations. Furthermore, by rotating the spring, the degree of spring compression can be adjusted, thereby adjusting the elastic preload on the lower clamping plate 27.

[0046] The working principle of the rod and the socket is as follows: a rod 7 is inserted into the second screw sleeve 6, which is fixedly connected between the upper part 2115 and the lower part 2116 of the spring. One end of the rod 7 is provided with an external thread 8, and the rack 29 is provided with a plurality of vertically arranged sockets 9. When the spring needs to be adjusted, the rod 7 can be pulled out of the socket 9 and the spring can be rotated by turning the rod 7, which is convenient to operate. When the rod 7 is inserted into one of the sockets 9 and threadedly connected to the second screw sleeve 6 via the external thread 8, the spring is limited to prevent it from changing position due to vibration and other reasons during long-term use, thereby ensuring the accuracy of the clamping. In addition, when the rod 7 is connected to the socket 9, the lower part 2116 of the spring cannot be elastically expanded and contracted, and only the upper part 2115 of the spring can be elastically expanded and contracted. This can further adjust the elastic preload force on the lower clamping plate 27 to adapt to electronic components of different specifications and materials. Furthermore, the upper spring portion 2115 is provided with an elastic force sensor, which is connected to the first electric push rod 24 through the elastic force sensor. When the elastic force of the upper spring portion 2115 reaches a threshold, the first electric push rod 24 can be controlled to close. This arrangement can prevent the lower clamping plate 27 from damaging the component body 5.

[0047] The lower clamping plate length adjustment works by defining a screw slot at the bottom end of the lower clamping plate 27. A resilient rubber stud, which is rotatably connected, can be screwed in or out of the slot as needed. For larger electronic components, the stud can be screwed out to increase the length of the lower clamping plate 27, allowing it to better fit and press against the sides of the component body 5. For smaller components, the stud can be screwed in to prevent the stud from being too long and affecting operation.

[0048] The above configuration has the following beneficial effects:

[0049] Improved Clamping Stability and Adaptability: The spring and lift rods 211 work together to limit the top and side surfaces of electronic components. Compared to traditional single-clamping methods, this significantly improves component stability during soldering and reduces soldering defects caused by unstable clamping. Furthermore, the lift rods 211 on both sides can be elastically compressed to varying degrees, allowing the lower clamping plate 27 to rotate to varying degrees. This adapts to electronic components with various shapes (e.g., sidewalls with straight steps, inverted steps, arcs, straight trapezoids, inverted trapezoids, etc.), greatly expanding the application range of automatic soldering machines.

[0050] Enhanced Adjustment Convenience and Precision: The coordinated design of the spring and threaded groove allows the operator to easily adjust the initial length and elastic preload of the lifting rod 211 without the need for complex disassembly and replacement of parts, improving equipment commissioning efficiency. The coordinated design of the insertion rod 7 and the socket 9 facilitates spring adjustment while effectively preventing spring position shifts, ensuring clamping accuracy during long-term use, reducing welding quality fluctuations caused by clamping errors, and improving product consistency and pass rate.

[0051] Improved versatility and flexibility: The elastic rubber studs on the lower clamping plate 27 allow for flexible adjustment of the plate's length, adapting to the clamping requirements of electronic components of varying sizes and further enhancing the automatic soldering machine's versatility. These elastic rubber studs provide sufficient clamping force while preventing surface damage and protecting the integrity of components. This makes them suitable for electronic components made of a variety of materials, enhancing the machine's flexibility and practicality in diverse production scenarios.

[0052] Working principle of the present invention:

[0053] During operation, the starting motor 23 drives the first screw 213 to rotate, driving the first screw sleeves 214 at both ends and the upper clamping plate 26 to approach synchronously until the upper clamping plate 26 clamps the upper part of the component body 5, and then the first electric push rod 24 is started to drive the lifting plate 25, the lifting rod 211 and the rack 29 to move downward, and the rack 29 drives the gear 28 and the lower clamping plate 27 to rotate, and the lower clamping plate 27 clamps the lower part of the component body 5, and the upper clamping plate 26 and the lower clamping plate 27 achieve stable clamping of the component body 5 to avoid displacement during the welding process. Then the electric slider 32 is started to drive the mounting frame 33 and the soldering head 4 to move horizontally, and the position of the soldering head 4 is adjusted to move it to the position to be welded. After it is in place, the second electric push rod 34 is started to drive the soldering head 4 to move downward for soldering operation. Through the coordinated cooperation of the fixing mechanism 2 and the adjusting mechanism 3, the automatic soldering work of electronic components can be completed efficiently and accurately.

[0054] To sum up: the automatic soldering machine used for the production of electronic components, through the cooperation of the electric slider 32 and the second electric push rod 34, can accurately move the solder head 4 to the position where the electronic component body 5 needs to be welded, thereby realizing automatic welding, and the upper and lower parts of the component body 5 are clamped respectively by the upper clamping plate 26 and the lower clamping plate 27. Compared with the traditional single clamping plate, this setting can significantly improve the stability of the component body 5 with non-planar side during the welding process, thereby improving the welding quality.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic soldering machine for producing electronic components, comprising a cabinet (1), characterized in that: An adjusting mechanism (3) is provided inside the cabinet (1), a soldering head (4) is mounted on the adjusting mechanism (3), a fixing mechanism (2) is provided on one side of the adjusting mechanism (3), the fixing mechanism (2) comprises a set of symmetrically arranged upper clamping plates (26) and lower clamping plates (27), and a component body (5) to be soldered is fixed inside the upper clamping plates (26) and the lower clamping plates (27).

2. The automatic soldering machine for electronic component production according to claim 1, characterized in that: The adjustment mechanism (3) comprises a slide rail (31), the slide rail (31) is fixedly mounted on the cabinet (1), an electric slider (32) is slidably connected to the slide rail (31), and a mounting frame (33) is fixedly mounted on the electric slider (32).

3. The automatic soldering machine for electronic component production according to claim 2, characterized in that: A second electric push rod (34) is fixedly mounted on the upper end of the mounting frame (33); an output end of the second electric push rod (34) is fixedly connected to a mounting plate (35); the mounting plate (35) is slidably connected to the mounting frame (33); and the soldering head (4) is fixedly mounted on the mounting plate (35).

4. The automatic soldering machine for electronic component production according to claim 1, characterized in that: The fixing mechanism (2) further comprises a support frame (21), wherein the support frame (21) is arranged in the cabinet (1), one end of the support frame (21) is fixedly connected to a mounting box (22), one end of the mounting box (22) is fixedly mounted with a motor (23), a first screw rod (213) is rotatably mounted in the mounting box (22), both ends of the first screw rod (213) are threadedly connected to a first screw sleeve (214), the first screw sleeve (214) is slidably connected to the inner wall of the mounting box (22), and one end of the first screw sleeve (214) is fixedly connected to the output end of the motor (23).

5. The automatic soldering machine for electronic component production according to claim 4, characterized in that: The upper clamping plate (26) is fixedly connected to the lower surface of the first screw sleeve (214), the lower clamping plate (27) is hinged to the lower end of the upper clamping plate (26), and the upper end of the lower clamping plate (27) is coaxially fixedly connected to a gear (28).

6. The automatic soldering machine for electronic component production according to claim 5, characterized in that: One side of the gear (28) is meshedly connected to a rack (29), the rack (29) is slidably connected to a limit plate (210), and the limit plate (210) is fixedly connected to one side of the upper clamping plate (26).

7. The automatic soldering machine for electronic component production according to claim 6, characterized in that: A first electric push rod (24) is fixedly mounted on one side of the mounting box (22); an output end of the first electric push rod (24) is fixedly connected to a lifting plate (25); and the lifting plate (25) is movably inserted into the through hole (261).

8. The automatic soldering machine for electronic component production according to claim 7, characterized in that: Both ends of the lifting plate (25) are slidably connected to the limiting sliders (212), and the lower surface of the limiting slider (212) is fixedly connected to the lifting rod (211). The lifting rod (211) slides through the upper end of the limiting plate (210) and is fixedly connected to the rack (29) at the bottom.

9. The automatic soldering machine for electronic component production according to claim 8, characterized in that: The lifting rod (211) comprises an upper rod body (2111), a spring and a lower rod body (2112), wherein the upper end of the upper rod body (2111) is fixedly connected to the lower surface of the limiting slider (212), and the lower end of the lower rod body (2112) is fixedly connected to the rack (29). An upper thread groove (2113) is provided on the outer surface of the upper rod body (2111), and a lower thread groove (2114) is provided on the outer surface of the lower rod body (2112). The upper thread groove (2113) and the lower thread groove (2114) have opposite rotation directions. The spring comprises an upper part (2115) and a lower part (2116) that are fixedly connected. The upper part (2115) and the lower part (2116) have opposite rotation directions. The upper part (2115) is connected to the upper thread groove (2113), and the lower end of the lower part (2116) is connected to the lower thread groove (2114).

10. The automatic soldering machine for electronic component production according to claim 9, characterized in that: A second screw sleeve (6) is fixedly connected between the upper part (2115) and the lower part (2116) of the spring, and an insertion rod (7) is inserted into the second screw sleeve (6). One end of the insertion rod (7) is provided with an external thread (8), and the rack (29) is provided with a plurality of vertically arranged insertion holes (9). The insertion rod (7) can be inserted into one of the insertion holes (9), and the external thread (8) can be threadedly connected to the second screw sleeve (6).

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