Circuit board welding carrier

Abstract

The invention relates to the technical field of circuit boards, and discloses a circuit board welding carrier which comprises a mounting unit, a transmission unit and a rotating unit, the mounting unit comprises a workbench, a placing table is arranged above the workbench, a clamping assembly is arranged above the placing table, and the clamping assembly is used for clamping and positioning a placed circuit board; a rectangular notch and a placing notch which are symmetrical to each other are respectively formed in the placing table and the working table; the rotating unit comprises a hydraulic cylinder, a welding head is arranged at the bottom of the hydraulic cylinder, and an arc-shaped sliding rail is arranged above the hydraulic cylinder. According to the invention, the driving assembly can control the clamping assembly to turn over, when the clamping assembly turns over, the clamping assembly can drive a circuit board to turn over, and when the clamping assembly turns over, the clamping assembly can extrude a wedge-shaped block to move upwards, so that a Z-shaped connecting rod drives a sliding block to slide on an arc-shaped sliding rail; and the sliding block can drive the hydraulic cylinder and the welding head to rotate, so that the side face of the circuit board can be conveniently welded.

Description

Technical Field

[0001] The present invention belongs to the technical field of circuit boards, and specifically relates to a circuit board welding carrier. Background Art

[0002] In today's highly digital and intelligent era, electronic products are everywhere, from daily used smartphones, tablets, to complex devices in the industrial control field, and precision instruments in high-end fields such as medical and aerospace. As a key core component of electronic products, the circuit board bears the electrical connections between various electronic components, and its manufacturing quality directly affects the performance, reliability and service life of the entire electronic product.

[0003] However, in some existing fields, some circuit boards often need to be welded on both sides during the welding process. Currently, when welding both sides of the circuit board, it is usually done by first positioning the circuit board and then welding. After one side of the circuit board is welded, the circuit board is then turned over and the next side is welded. This leads to a relatively complex welding process and during the process of changing the side of the circuit board, the original welded surface is at the bottom, which is prone to damage, resulting in the scrapping of the circuit board, which is rather troublesome.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the problem that in some existing fields, some circuit boards often need to be welded on both sides during the welding process. Currently, when welding both sides of the circuit board, it is usually done by first positioning the circuit board and then welding. After one side of the circuit board is welded, the circuit board is then turned over and the next side is welded. This leads to a relatively complex welding process and during the process of changing the side of the circuit board, the original welded surface is at the bottom, which is prone to damage, resulting in the scrapping of the circuit board, which is rather troublesome, the basic concept of the technical solution adopted by the present invention is:

[0006] A circuit board welding carrier, comprising a mounting unit, a transmission unit and a rotating unit. The mounting unit includes a workbench, a placing table is arranged above the workbench, and a clamping assembly is arranged above the placing table. The clamping assembly is used for clamping and positioning the placed circuit board. Two mutually symmetrical rectangular notches and placing notches are respectively formed in the placing table and the workbench. The rotating unit includes a hydraulic cylinder, a welding head is arranged at the bottom of the hydraulic cylinder, an arc-shaped slide rail is arranged above the hydraulic cylinder, a sliding block is slidably arranged above the arc-shaped slide rail, and the bottom of the sliding block is connected to the hydraulic cylinder. The transmission unit includes a driving assembly, the driving assembly is used for driving the clamping assembly to turn over, the driving assembly is also used for driving the circuit board and the clamping assembly to separate, and the clamping assembly is used for driving the welding head to rotate.

[0007] As a preferred embodiment of the present invention, the driving assembly includes a servo motor, the output end of the servo motor is fixedly connected with a threaded rod, a threaded sleeve is meshed on the threaded rod, two mutually symmetrical guide rods are movably penetrated through the threaded sleeve, and the two guide rods are respectively fixedly connected to the bottom of the inner cavity of the workbench, and a push rod is fixedly connected to the threaded sleeve.

[0008] As a preferred embodiment of the present invention, a rotating rod is arranged at the bottom of one side of the clamping assembly, bearings are respectively arranged at both ends of the rotating rod, the two bearings are respectively arranged on the inner walls of the two rectangular notches, a cam is arranged on the rotating rod, a torsion spring is arranged at one end of the cam close to the clamping assembly, the other end of the torsion spring is arranged on the clamping assembly, and the cam and the push rod are aligned with each other.

[0009] As a preferred embodiment of the present invention, four support rods are further arranged above the workbench, the four support rods are symmetrical to each other in pairs, T-shaped plates and baffles are respectively arranged on the side walls of the four support rods opposite to each other in pairs, a top plate is arranged above the four support rods, an arc-shaped slide rail is arranged above the T-shaped plate, and a maintenance door is arranged on the front side of the workbench.

[0010] As a preferred embodiment of the present invention, a mounting plate is fixedly installed on one side wall of the baffle, a mounting notch is penetrated through the mounting plate, moving chutes are formed on the opposite side walls of the inner cavity of the mounting notch, the two moving chutes are symmetrical to each other, moving sliders are slidably arranged in the inner cavities of the two moving chutes, the two moving sliders are symmetrical to each other, a connecting plate is fixedly connected to the opposite side walls of the two moving sliders, a wedge-shaped block is arranged at the bottom of the connecting plate, and return springs are further arranged in the inner cavities of the two moving chutes, and the other ends of the two return springs are fixedly connected to the moving sliders.

[0011] As a preferred embodiment of the present invention, a plurality of equidistantly distributed L-shaped connecting rods are fixedly connected to one side wall of the top plate, and a connecting plate is provided at the other end of the L-shaped connecting rod. Two symmetrically arranged sliding rods are fixedly connected to the connecting plate. A sliding plate is slidably arranged on the two sliding rods. A connecting piece is fixedly connected to the middle of the sliding plate, and a pushing plate is fixedly connected to the end of the connecting piece away from the sliding plate.

[0012] As a preferred embodiment of the present invention, a Z-shaped connecting rod is fixedly connected above the connecting plate. A wedge-shaped plate is attached to the other end of the Z-shaped connecting rod. Fixed plates are fixedly connected to the opposite two side walls of the wedge-shaped plate. The two fixed plates are symmetric with each other. Positioning plates are fixedly connected to both of the two fixed plates. Mounting brackets are fixedly connected to the ends of the two positioning plates away from the fixed plates respectively.

[0013] As a preferred embodiment of the present invention, guiding chutes are respectively opened on the opposite side walls of the two mounting brackets. The two guiding chutes are symmetric with each other. Guiding sliders are slidably arranged in the cavities of the two guiding chutes. The two guiding sliders are symmetric with each other. The opposite ends of the two guiding sliders are arranged on a sliding block.

[0014] As a preferred embodiment of the present invention, two symmetrically arranged chutes are opened above the top plate. Sliders are slidably arranged in the cavities of the two chutes. Springs are arranged on both of the two sliders, and the other ends of the springs are arranged on the inner walls of the chutes.

[0015] As a preferred embodiment of the present invention, a movable rod is movably arranged at the bottom of the sliding plate. The movable rod movably penetrates through a rectangular notch, and the other end of the movable rod is movably arranged on a threaded sleeve.

[0016] The present invention has the following beneficial effects compared with the prior art:

[0017] In the present invention, the clamping assembly can be controlled to turn by a driving assembly. When the clamping assembly turns, the circuit board can be driven to turn 90 degrees. At the same time, when the clamping assembly turns, the wedge-shaped block can be extruded to move upward, so that the sliding block can be driven to slide on the arc-shaped slide rail through the Z-shaped connecting rod, enabling the sliding block to drive the hydraulic cylinder and the welding head to turn 90 degrees, which is convenient for welding the side of the circuit board, ensuring that it is more convenient to weld the second side of the circuit board, and at the same time ensuring that the originally welded side of the circuit board will not be damaged.

[0018] The following further describes the specific embodiments of the present invention in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the drawings:

[0020] Figure 1 It is a schematic three-dimensional structure diagram of a circuit board welding carrier;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of the workbench of a circuit board welding carrier;

[0022] Figure 3 It is a schematic bottom view structure diagram of the workbench of a circuit board welding carrier;

[0023] Figure 4 It is a schematic internal cavity structure diagram of the workbench of a circuit board welding carrier;

[0024] Figure 5 It is a Figure 4 magnified structure diagram of part A in a circuit board welding carrier;

[0025] Figure 6 It is a schematic partial structure diagram above the workbench of a circuit board welding carrier;

[0026] Figure 7 It is a schematic cross-sectional structure diagram of the mounting plate of a circuit board welding carrier.

[0027] In the figure:

[0028] 100, mounting unit; 101, workbench; 1011, inspection door; 1012, support rod; 1013, top plate; 1014, T-shaped plate; 1015, baffle; 102, placement table; 1021, rectangular notch; 1022, placement notch; 103, clamping assembly; 106, L-shaped connecting rod;

[0029] 200, transmission unit; 201, servo motor; 2011, threaded rod; 2012, threaded sleeve; 2013, guide rod; 2014, push rod; 202, cam; 2021, rotating rod; 2022, bearing; 2023, torsion spring; 203, mounting plate; 2031, mounting notch; 2032, moving chute; 2033, moving slider; 2034, return spring; 2035, connecting plate; 2036, wedge block; 204, push plate; 2041, connecting piece; 2042, sliding plate; 2043, sliding rod; 2044, connection plate; 2045, movable rod;

[0030] 300, rotating unit; 301, Z-shaped connecting rod; 302, wedge plate; 3021, fixing plate; 3022, positioning plate; 303, mounting bracket; 3031, guide chute; 3032, guide slider; 304, arc-shaped slide rail; 3041, sliding block; 305, chute; 3051, spring; 3052, slider; 306, hydraulic cylinder; 3061, welding head. Detailed implementation method

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0032] Embodiment 1:

[0033] As [[ID=ID=8]]Figures 1 to 7 shown, a circuit board welding carrier includes a mounting unit 100, a transmission unit 200, and a rotating unit 300. The mounting unit 100 includes a workbench 101. Above the workbench 101, a placement table 102 is provided. Above the placement table 102, a clamping assembly 103 is provided. The clamping assembly 103 is used to clamp and position the placed circuit board. Two symmetrically arranged rectangular notches 1021 and placement notches 1022 are respectively formed on the placement table 102 and the workbench 101. The rotating unit 300 includes a hydraulic cylinder 306. At the bottom of the hydraulic cylinder 306, a welding head 3061 is provided. Above the hydraulic cylinder 306, an arc-shaped slide rail 304 is provided. Above the arc-shaped slide rail 304, a sliding block 3041 is slidably arranged. At the bottom of the sliding block 3041, a connecting hydraulic cylinder 306 is provided. The transmission unit 200 includes a driving assembly. The driving assembly is used to drive the clamping assembly 103 to flip, and the driving assembly is also used to drive the separation of the circuit board and the clamping assembly 103. The clamping assembly 103 is used to drive the welding head 3061 to rotate. Through the driving assembly, the clamping assembly 103 can be controlled to flip. When the clamping assembly 103 flips, the circuit board can be driven to flip by 90 degrees. At the same time, when the clamping assembly 103 flips, the wedge-shaped block 2036 can be squeezed to move upward, so as to drive the sliding block 3041 to slide on the arc-shaped slide rail 304 through the Z-shaped connecting rod 301, so that the sliding block 3041 can drive the hydraulic cylinder 306 and the welding head 3061 to rotate by 90 degrees, thus facilitating the welding of the side of the circuit board.

[0034] As Figures 2 to 4 and Figures 6 to 7 shown, in the specific implementation manner, the driving assembly includes a servo motor 201. The output end of the servo motor 201 is fixedly connected with a threaded rod 2011. A threaded sleeve 2012 is meshed on the threaded rod 2011. Two symmetrically arranged guide rods 2013 are movably penetrated through the threaded sleeve 2012. The two guide rods 2013 are respectively fixedly connected to the bottom of the inner cavity of the workbench 101. A push rod 2014 is fixedly connected to the threaded sleeve 2012. In this setting, the installation position and components of the driving assembly are determined.

[0035] As Figures 2 to 6As shown, further, a rotating rod 2021 is provided at the bottom of one side of the clamping assembly 103. Bearings 2022 are respectively provided at both ends of the rotating rod 2021. The two bearings 2022 are respectively arranged on the inner walls of two rectangular notches 1021. A cam 202 is provided on the rotating rod 2021. One end of the cam 202 close to the clamping assembly 103 is provided with a torsion spring 2023. The other end of the torsion spring 2023 is arranged on the clamping assembly 103. The cam 202 and the push rod 2014 are aligned with each other. In this setting, it is ensured that when the cam 202 is subjected to a squeezing force, the rotating rod 2021 can rotate and drive the clamping assembly 103 to rotate.

[0036] Embodiment 2:

[0037] Different from the above embodiment and this embodiment: As Figures 2 to 4 and Figures 6 to 7 shown, for a circuit board welding carrier, four support rods 1012 are further provided above the workbench 101. The four support rods 1012 are symmetric with each other in pairs. T-shaped plates 1014 and baffles 1015 are respectively arranged on one side wall of the four support rods 1012 opposite to each other in pairs. A top plate 1013 is provided above the four support rods 1012. An arc-shaped slide rail 304 is provided above the T-shaped plate 1014. An access door 1011 is provided on the front side of the workbench 101. In this setting, the installation positions of the T-shaped plate 1014 and the baffle 1015 are determined.

[0038] As Figures 2 to 4 and Figures 6 to 7 shown, in the specific implementation, a mounting plate 203 is fixedly installed on one side wall of the baffle 1015. A mounting notch 2031 is penetrated through the mounting plate 203. Moving chutes 2032 are opened on the opposite side walls of the inner cavity of the mounting notch 2031. The two moving chutes 2032 are symmetric with each other. Moving sliders 2033 are slidably arranged in the inner cavities of the two moving chutes 2032. The two moving sliders 2033 are symmetric with each other. A connecting plate 2035 is fixedly connected to the opposite side wall of the two moving sliders 2033. A wedge-shaped block 2036 is arranged at the bottom of the connecting plate 2035. Return springs 2034 are further arranged in the inner cavities of the two moving chutes 2032. The other ends of the two return springs 2034 are fixedly connected to the moving sliders 2033. In this setting, the installation position and components of the wedge-shaped block 2036 are determined, ensuring that when the clamping assembly 103 rotates to a certain position, it will be able to touch the wedge-shaped block 2036. Therefore, the clamping assembly 103 can squeeze the wedge-shaped block 2036 to move vertically upward with the assistance of the moving chutes 2032, the moving sliders 2033 and the connecting plate 2035.

[0039] As Figures 1 to 3As shown in the figure, further, a plurality of L-shaped connecting rods 106 arranged at equal intervals are fixedly connected to one side wall of the top plate 1013, and a connecting plate 2044 is arranged at the other end of the L-shaped connecting rod 106. Two symmetrically arranged sliding rods 2043 are fixedly connected to the connecting plate 2044. A sliding plate 2042 is slidably arranged on the two sliding rods 2043. A connecting member 2041 is fixedly connected to the middle of the sliding plate 2042. One end of the connecting member 2041 away from the sliding plate 2042 is fixedly connected to a push plate 204. A Z-shaped connecting rod 301 is fixedly connected above the connecting plate 2035. A wedge-shaped plate 302 is arranged in a fitting manner at the other end of the Z-shaped connecting rod 301. Fixed plates 3021 are fixedly connected to the opposite two side walls of the wedge-shaped plate 302. The two fixed plates 3021 are symmetric to each other. Positioning plates 3022 are fixedly connected to both of the two fixed plates 3021. Mounting brackets 303 are fixedly connected to the ends of the two positioning plates 3022 away from the fixed plates 3021 respectively. In this setting, when the connecting plate 2035 moves vertically upward, it will be able to drive the Z-shaped connecting rod 301 to move vertically upward. When the Z-shaped connecting rod 301 moves vertically upward, it will be able to squeeze the wedge-shaped plate 302 to drive the fixed plates 3021, the positioning plates 3022 and the mounting brackets 303 to move horizontally with the assistance of the chute 305 and the slider 3052.

[0040] As Figures 2 to 4 and Figures 6 to 7 shown in the figure, further, guiding chutes 3031 are respectively opened on the opposite two side walls of the two mounting brackets 303. The two guiding chutes 3031 are symmetric to each other. Guiding sliders 3032 are slidably arranged in the inner cavities of the two guiding chutes 3031. The two guiding sliders 3032 are symmetric to each other. The opposite ends of the two guiding sliders 3032 are arranged on a sliding block 3041. In this setting, the opening positions of the guiding chutes 3031 and the mounting positions of the sliding block 3041 are determined.

[0041] Embodiment 3:

[0042] Based on the above embodiments, the difference from this embodiment is that as Figures 2 to 4 and Figures 6 to 7 shown in the figure, for a circuit board welding carrier, two symmetrically arranged chutes 305 are opened above the top plate 1013. Sliders 3052 are slidably arranged in the inner cavities of the two chutes 305. Springs 3051 are arranged on both of the two sliders 3052, and the other ends of the springs 3051 are arranged on the inner walls of the chutes 305. In this setting, the opening positions of the chutes 305 and the mounting positions of the sliders 3052 are determined.

[0043] As Figures 2 to 4 and Figures 6 to 7As shown, in the specific implementation manner, a movable rod 2045 is movably arranged at the bottom of the sliding plate 2042. The movable rod 2045 movably penetrates through the rectangular notch 1021, and the other end of the movable rod 2045 is movably arranged on the threaded sleeve 2012. In this setting, it is ensured that when the welding is completed, the servo motor 201 runs in the reverse direction at this time, so that the threaded sleeve 2012 can be driven to reset. When the threaded sleeve 2012 resets, it can pull the sliding plate 2042 through the movable rod 2045 to move horizontally with the assistance of the sliding rod 2043.

[0044] The implementation principle of a circuit board welding carrier in this embodiment is as follows:

[0045] First, the staff places the circuit board into the clamping assembly 103 and positions the circuit board by operating the clamping assembly 103. When the circuit board is positioned, the staff starts the hydraulic cylinder 306 at this time, so that the welding head 3061 can be driven to weld the upper surface of the placed circuit board (the specific welding at this time, the operation of the hydraulic cylinder 306, and the clamping method of the clamping assembly 103 are prior arts);

[0046] When the upper surface of the circuit board is welded, the staff needs to weld the other side of the circuit board at this time. Therefore, the staff starts the servo motor 201, and the servo motor 201 can drive the threaded rod 2011 to rotate. When the threaded rod 2011 rotates, the threaded rod 2011 can drive the threaded sleeve 2012 to move vertically upward with the assistance of the guide rod 2013. When the threaded sleeve 2012 moves vertically upward to a certain position, it can drive the push rod 2014 to contact the cam 202. At this time, the threaded sleeve 2012 continues to move upward, so that the cam 202 can be driven to rotate upward with the assistance of the rotating rod 2021, so as to ensure that the rotating rod 2021 rotates. When the rotating rod 2021 rotates, it can drive the clamping assembly 103 to rotate, so as to ensure that the circuit board located in the clamping assembly 103 can rotate. When the clamping assembly 103 rotates 90 degrees, the servo motor 201 stops running at this time (when the threaded sleeve 2012 moves vertically upward, it can push the sliding plate 2042 to move horizontally with the assistance of the sliding rod 2043 through the movable rod 2045, so that the sliding plate 2042 drives the push plate 204 away from the clamping assembly 103);

[0047] When the clamping assembly 103 rotates to a certain position, it will be able to touch the wedge block 2036. Therefore, the clamping assembly 103 can squeeze the wedge block 2036, and with the assistance of the moving chute 2032, the moving slider 2033 and the connecting plate 2035, it can move vertically upward until the wedge block 2036 moves to a certain position. At this time, the clamping assembly 103 can leave the wedge block 2036, and at this time, the wedge block 2036 can move vertically with the assistance of the return spring 2034, so as to limit the rotated clamping assembly 103;

[0048] When the connecting plate 2035 moves vertically upward, it will be able to drive the Z-shaped connecting rod 301 to move vertically upward. When the Z-shaped connecting rod 301 moves vertically upward, it will be able to squeeze the wedge plate 302 to drive the fixing plate 3021, the positioning plate 3022 and the mounting bracket 303 to move horizontally with the assistance of the chute 305 and the slider 3052. When the mounting bracket 303 moves horizontally, it will be able to drive the sliding block 3041 to rotate 90 degrees with the assistance of the arc-shaped slide rail 304 through the guiding chute 3031 and the guiding slider 3032. Therefore, it can ensure that the hydraulic cylinder 306 can rotate 90 degrees with the welding head 3061, thus facilitating the welding of the other side of the circuit board and ensuring the welding efficiency;

[0049] When the welding is completed, the servo motor 201 runs in the reverse direction at this time. Therefore, it can drive the threaded sleeve 2012 to reset. When the threaded sleeve 2012 resets, it will be able to pull the sliding plate 2042 through the movable rod 2045 to move horizontally with the assistance of the sliding rod 2043 until it reaches a certain position, and it can drive the push plate 204 around the circuit board through the sliding plate 2042 (and at this time the clamping assembly 103 is loosened). Therefore, it can ensure that it is convenient to remove the circuit board.

[0050] The driving assembly can control the clamping assembly 103 to flip. When the clamping assembly 103 flips, it will be able to drive the circuit board to flip 90 degrees. At the same time, when the clamping assembly 103 flips, it will be able to squeeze the wedge block 2036 to move upward, so as to drive the sliding block 3041 to slide on the arc-shaped slide rail 304 through the Z-shaped connecting rod 301, so that the sliding block 3041 can drive the hydraulic cylinder 306 and the welding head 3061 to rotate 90 degrees, thus facilitating the welding of the side of the circuit board, ensuring that it is more convenient to weld the second side of the circuit board during welding, and at the same time ensuring that the originally welded side of the circuit board will not be damaged.

Claims

1. A circuit board welding carrier, comprising a mounting unit (100), a transmission unit (200) and a rotating unit (300), characterized in that the mounting unit (100) includes a workbench (101), a placement table (102) is arranged above the workbench (101), a clamping assembly (103) is arranged above the placement table (102), the clamping assembly (103) is used for clamping and positioning the placed circuit board, and two mutually symmetrical rectangular notches (1021) and placement notches (1022) are respectively formed in the placement table (102) and the workbench (101); the rotating unit (300) includes a hydraulic cylinder (306), a welding head (3061) is arranged at the bottom of the hydraulic cylinder (306), an arc-shaped slide rail (304) is arranged above the hydraulic cylinder (306), a sliding block (3041) is slidably arranged above the arc-shaped slide rail (304), and the bottom of the sliding block (3041) is connected to the hydraulic cylinder (306); the transmission unit (200) includes a driving assembly, the driving assembly is used for driving the clamping assembly (103) to flip, the driving assembly is also used for driving the circuit board and the clamping assembly (103) to separate, and the clamping assembly (103) is used for driving the welding head (3061) to rotate.

2. The circuit board welding carrier according to claim 1, characterized in that, The driving assembly includes a servo motor (201), a threaded rod (2011) is fixedly connected to the output end of the servo motor (201), a threaded sleeve (2012) is meshed on the threaded rod (2011), two mutually symmetrical guide rods (2013) are movably penetrated through the threaded sleeve (2012), and the two guide rods (2013) are respectively fixedly connected to the bottom of the inner cavity of the workbench (101), and a push rod (2014) is fixedly connected to the threaded sleeve (2012).

3. A circuit board soldering carrier according to claim 1, characterized in that, A rotating rod (2021) is arranged at the bottom of one side of the clamping assembly (103), bearings (2022) are respectively arranged at both ends of the rotating rod (2021), the two bearings (2022) are respectively arranged on the inner walls of the two rectangular notches (1021), a cam (202) is arranged on the rotating rod (2021), a torsion spring (2023) is arranged at one end of the cam (202) close to the clamping assembly (103), the other end of the torsion spring (2023) is arranged on the clamping assembly (103), and the cam (202) and the push rod (2014) are aligned with each other.

4. A circuit board welding carrier according to claim 1, characterized in that, Four support rods (1012) are further arranged above the workbench (101), the four support rods (1012) are symmetrical to each other in pairs, T-shaped plates (1014) and baffles (1015) are respectively arranged on the opposite side walls of the four support rods (1012) in pairs, a top plate (1013) is arranged above the four support rods (1012), the arc-shaped slide rail (304) is arranged above the T-shaped plate (1014), and a maintenance door (1011) is arranged on the front side of the workbench (101).

5. A circuit board welding carrier according to claim 4, characterized in that, One side wall of the baffle (1015) is fixedly installed with a mounting plate (203). A mounting notch (2031) is penetrated through the mounting plate (203). Opposite side walls of the inner cavity of the mounting notch (2031) are provided with moving sliding grooves (2032). The two moving sliding grooves (2032) are symmetrical to each other. Moving sliders (2033) are slidably arranged in the inner cavities of the two moving sliding grooves (2032). The two moving sliders (2033) are symmetrical to each other. A connecting plate (2035) is fixedly connected to the opposite side walls of the two moving sliders (2033). A wedge-shaped block (2036) is arranged at the bottom of the connecting plate (2035). A return spring (2034) is further arranged in the inner cavities of the two moving sliding grooves (2032). The other ends of the two return springs (2034) are fixedly connected to the moving sliders (2033).

6. The circuit board welding carrier according to claim 4, characterized in that, A plurality of equidistantly distributed L-shaped connecting rods (106) are fixedly connected to one side wall of the top plate (1013). The other ends of the L-shaped connecting rods (106) are provided with a connecting plate (2044). Two symmetrical sliding rods (2043) are fixedly connected to the connecting plate (2044). A sliding plate (2042) is slidably arranged on the two sliding rods (2043). A connecting member (2041) is fixedly connected to the middle of the sliding plate (2042). A pushing plate (204) is fixedly connected to the end of the connecting member (2041) away from the sliding plate (2042).

7. A circuit board welding carrier according to claim 5, characterized in that, A Z-shaped connecting rod (301) is fixedly connected above the connecting plate (2035). The other end of the Z-shaped connecting rod (301) is in contact with a wedge-shaped plate (302). Fixed plates (3021) are fixedly connected to the opposite side walls of the wedge-shaped plate (302). The two fixed plates (3021) are symmetrical to each other. Positioning plates (3022) are fixedly connected to the two fixed plates (3021). Mounting brackets (303) are fixedly connected to the ends of the two positioning plates (3022) away from the fixed plates (3021) respectively.

8. A circuit board welding carrier according to claim 7, characterized in that, Guide sliding grooves (3031) are opened on the opposite side walls of the two mounting brackets (303). The two guide sliding grooves (3031) are symmetrical to each other. Guide sliders (3032) are slidably arranged in the inner cavities of the two guide sliding grooves (3031). The two guide sliders (3032) are symmetrical to each other. The opposite ends of the two guide sliders (3032) are arranged on a sliding block (3041).

9. A circuit board welding carrier according to claim 6, characterized in that, Two symmetrical sliding grooves (305) are opened above the top plate (1013). Sliders (3052) are slidably arranged in the inner cavities of the two sliding grooves (305). Springs (3051) are arranged on the two sliders (3052). The other ends of the springs (3051) are arranged on the inner walls of the sliding grooves (305).

10. A circuit board welding carrier according to claim 6, characterized in that, A movable rod (2045) is movably arranged at the bottom of the sliding plate (2042). The movable rod (2045) movably penetrates through a rectangular notch (1021). The other end of the movable rod (2045) is movably arranged on a threaded sleeve (2012).

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