A semiconductor device welding positioning device

Abstract

The invention discloses a semiconductor device welding positioning device, relates to the field of semiconductor device welding, and solves the problem that when the existing semiconductor device welding positioning device is used, the component pins are plugged into the circuit board during the soldering iron welding process to perform flip welding, and the component is easy to fall off, which affects the welding efficiency. The device comprises a body, a flip mechanism, a positioning mechanism and an adjustment mechanism. The flip mechanism comprises a rotating disk and a fixing part. The positioning mechanism comprises a positioning frame and a plurality of air bags. The semiconductor device welding positioning device is convenient for adjusting the area of ​​the air bag inflation through the adjustment mechanism according to the size of the circuit board, and the circuit board is driven to perform flip adjustment through the rotating disk. In the initial stage of the operation of the flip mechanism, the air bag is linked to be inflated, so that the air bag can resist and fix the components plugged on the circuit board. When the air pressure value in the air bag reaches the set value, the rotating disk is driven to rotate to flip the components to the bottom of the circuit board.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor device welding, in particular to a semiconductor device welding positioning device. Background Art

[0002] Semiconductors refer to materials with electrical conductivity between conductors and insulators at room temperature. They are widely used in radios, televisions, and temperature measurement. Whether from the perspective of science and technology or economic development, semiconductors are of great importance. Most of today's electronic products, such as computers, mobile phones, or the core units of digital recorders, are closely related to semiconductors. Common semiconductor materials include silicon, germanium, gallium arsenide, etc., and silicon is the most influential semiconductor material in commercial applications.

[0003] The circuit board welding of semiconductor devices is generally divided into chip welding and pin welding. When welding the pins, the components are generally inserted into the wiring holes to initially fix the components, and then the circuit board is flipped over. From the side of the circuit board away from the components, soldering is performed at the position of the pin wiring through an electric soldering iron and solder. When the number of components is large and the size difference is large, it is generally necessary to solder one by one. The fixing strength of the components after inserting into the wiring holes is weak. Directly flipping the circuit board will cause some components to fall off from the wiring holes, affecting the welding efficiency. To this end, we propose a semiconductor device welding positioning device. Summary of the invention

[0004] The object of the present invention is to provide a semiconductor device welding positioning device that is convenient for improving welding stability and flipping efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semiconductor device welding positioning device, comprising a body, a flipping mechanism, a positioning mechanism and an adjusting mechanism, wherein the flipping mechanism comprises a rotating disk rotatably connected to the body, the rotating disk is provided with a fixing member for clamping and fixing a circuit board, and is used to drive the circuit board to flip and adjust through the rotating disk, the positioning mechanism comprises a positioning frame installed on the rotating disk, the body is provided with a limiting groove that can be clamped with the positioning frame in a flipped state, the positioning frame is provided with a plurality of groups of airbags, which are used to inflate the airbags in a linkage manner in the initial stage of the operation of the flipping mechanism, so that the airbags can contact and fix the components plugged on the circuit board, when the air pressure value in the airbag reaches the set value, the rotating disk is driven to rotate 180° to flip the components to the bottom of the circuit board, and the adjusting mechanism is installed on the positioning frame, which is used to adjust the area where the airbag is inflated according to the size of the circuit board, so that the airbag just facing the upper area of ​​the circuit board is inflated and positioned, so as to improve the welding stability and flipping efficiency.

[0006] Preferably, the adjustment mechanism includes a plurality of positioning frames fixedly mounted on the side surfaces of the positioning frame, an adjusting rod being slidably connected in the horizontal direction in the positioning frame, the airbag being fixedly mounted on the bottom of the positioning frame and the adjusting rod respectively, the interior of the positioning frame and the adjusting rod are both hollow tubular in design, a guide tube connected to the positioning frame is fixedly connected in the positioning frame, the guide tube is slidably connected to the inner wall of the adjusting rod in the horizontal direction, and an adjusting member for adjusting the connection state between the guide tube and the positioning frame is provided on the positioning frame, so as to facilitate adjusting the inflation area of ​​the airbag according to the size of the circuit board, so that the airbag in the upper area of ​​the circuit board can be inflated and positioned.

[0007] Preferably, the adjusting member includes an adjusting plate which is slidably connected to the inner walls at both ends of the positioning frame in a horizontal direction, and the side of the adjusting plate is fixedly connected to an adjusting frame for resisting and clamping the side wall of the circuit board, and an elastic pull rope is fixedly connected between the two groups of the adjusting plates. A first pipe for connecting the airbag and the guide tube is opened in the positioning frame, and the airbag at the bottom of the adjusting rod is connected to the inner wall of the adjusting rod, so as to facilitate the adjustment of the connection state between the guide tube and the positioning frame.

[0008] Preferably, the fixing member includes a first fixing clamp fixedly mounted on the rotating disk, a sliding rod is slidably connected to the body in a horizontal direction, one end of the sliding rod is rotatably connected to the second fixing clamp, a return spring fixedly connected to the side of the body and connected to the sliding rod, a clamping rod that can be clamped and fixed with both ends of the second fixing clamp is provided in the body, one end of multiple groups of adjusting rods are fixedly connected to the side of the clamping rod, and a support rod rotatably connected to both sides of the first fixing clamp is fixedly connected to the side of the positioning frame, so as to facilitate clamping and fixing the circuit board.

[0009] Preferably, the positioning mechanism also includes a device box fixedly installed in the body, the device box is provided with an inflation chamber and an air storage chamber, the top of the air storage chamber is connected to a second pipe, one end of the second pipe is coaxially rotatably connected to the rotating disk, a third pipe connected to the positioning frame is fixedly connected to the rotating disk, and a fourth pipe for connecting the second pipe with the third pipe is provided on the rotating disk. An inflatable part for inflating is provided in the inflation chamber, which is convenient for inflating the airbag in the initial stage of the operation of the flipping mechanism, so that the airbag can fix the components plugged in on the circuit board by contact, and when the air pressure value in the airbag reaches the set value, the rotating disk is driven to rotate 180° to flip the components to the bottom of the circuit board.

[0010] Preferably, the flipping mechanism also includes a driving motor fixedly installed in the body, the output end of the driving motor is coaxially fixedly connected with a driving shaft, the two sides of the air storage chamber are respectively rotatably connected with a first disk and a second disk, the driving shaft passes through the first disk and is fixedly connected to the first disk, a driving wheel is rotatably connected in the body, the outer wall of the driving wheel is transmission-connected with a first belt transmission-connected to the rotating disk, and a rotating part is provided on the driving shaft for linking the operation of the inflatable part and driving the driving wheel to rotate at the same time, so as to facilitate the flipping and adjustment of the circuit board through the rotating disk.

[0011] Preferably, the rotating part includes a driving cylinder which is slidably connected to the inner wall of the second disc in a horizontal direction, one end of the driving cylinder can be plugged into the inner wall of the driving wheel, thereby driving the driving wheel to rotate synchronously, the driving shaft is slidably connected to the inner wall of the driving cylinder in a horizontal direction, and one end of the driving cylinder is fixedly connected to a tension spring which is fixedly connected to the first disc, so as to facilitate the linkage operation of the inflatable part while driving the driving wheel to rotate.

[0012] Preferably, the inflatable component includes a driving column rotatably connected to the device box, the outer wall of the driving column is transmission-connected to a second belt transmission-connected to the outer wall of the first disk, an inflatable plate is slidably connected in the inflation chamber along a vertical direction, the bottom of the inflation plate is rotationally connected to a connecting rod rotationally connected to a non-center position of the side surface of the driving column, and a one-way valve is provided in the device box for controlling the unidirectional suction of gas from the outside into the inflation chamber and then compressing the gas into the air storage chamber, so as to facilitate the inflation of the airbag.

[0013] Preferably, the positioning frame is provided with an exhaust valve for exhausting internal gas, so as to facilitate exhausting the gas inside the airbag.

[0014] Preferably, a limiting member for controlling the driving wheel to perform 180° flipping is provided on the side of the driving wheel, and a limiting groove capable of being engaged with the positioning frame in the flipped state is provided on the machine body, so as to facilitate limiting the flipped state.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A semiconductor device welding positioning device provided by the present invention solves the problem that when the component pins of the existing semiconductor device welding positioning device are inserted into the circuit board during the soldering iron welding process and the components are easily fallen off during the flip welding process, which affects the welding efficiency. It is convenient to adjust the inflation area of ​​the airbag through the adjustment mechanism according to the size of the circuit board, and drive the circuit board to flip and adjust through the rotating disk. In the initial stage of the operation of the flipping mechanism, the airbag is linked to be inflated, so that the airbag can resist and fix the components plugged on the circuit board. When the air pressure value in the airbag reaches the set value, the rotating disk is driven to rotate 180° to flip the components to the bottom of the circuit board.

[0017] 2. The present invention provides a semiconductor device welding positioning device. When the driving motor is running, it drives the driving shaft to rotate, and the driving shaft drives the first disc so that the second belt drives the driving column to rotate, and the driving column drives the connecting rod to make the inflatable plate reciprocate and rise and fall in the inflatable cavity. The external gas is sucked into the inflatable cavity through the one-way valve, and then compressed and input into the air storage cavity through the one-way valve on the upper side, and then transported to the positioning frame through the second pipeline, the fourth pipeline and the third pipeline, so that the guide tube is pressurized, the airbag expands and contacts the upper side of the circuit board, and the components plugged in above the circuit board are contacted and limited to avoid loosening and falling off during the later flipping process.

[0018] 3. The present invention provides a semiconductor device welding positioning device. In the initial stage of inflation, the air pressure intensity in the air storage chamber is low, and the tension spring pulls the driving cylinder away from the driving wheel. At this time, the driving shaft drives the driving cylinder to rotate without causing the driving wheel to rotate. When the airbag hits the set strength, the resistance of the components and the circuit board increases when the airbag expands, and the air pressure in the air storage chamber continues to increase, which can push the driving cylinder to slide out to a position connected with the driving wheel. During the rotation process, the driving cylinder is forced to hit the driving wheel and drives the driving wheel to rotate 180°, so that the driving wheel drives the first belt to drive the rotating disk to rotate, thereby realizing the flipping of the circuit board. Thereafter, the pins at the bottom of the circuit board can be welded, and the components flipped to the bottom are hit by the airbag and will not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 for Figure 1 A magnified image of area A;

[0021] Figure 3 It is a schematic diagram of the local structure of the fixing member of the present invention;

[0022] Figure 4 It is a schematic diagram of the local structure of the rotating part of the present invention;

[0023] Figure 5 It is a schematic diagram of the local structure of the positioning mechanism of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of area B;

[0025] Figure 7 It is a schematic diagram of the local structure of the regulating mechanism of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of area C in the middle;

[0027] Fig. 9 It is a partial structural cross-sectional view of the positioning mechanism of the present invention;

[0028] Fig.10 for Fig. 9 Enlarged view of area D in the middle.

[0029] In the figure: 1-body; 2-turning mechanism; 3-rotating plate; 4-fixing member; 5-positioning mechanism; 6-positioning frame; 7-airbag; 8-adjusting mechanism; 9-positioning frame; 10-adjusting rod; 11-guide tube; 12-adjusting member; 13-adjusting plate; 14-adjusting frame; 15-elastic pull rope; 16-first pipeline; 17-first fixing clamp; 18-sliding rod; 19-reset spring; 20-clamping rod; 21-support rod; 22-device box; 23-inflating chamber; 24-air storage chamber; 2 5-second pipeline; 26-third pipeline; 27-fourth pipeline; 28-inflatable member; 29-driving motor; 30-driving shaft; 31-first disc; 32-second disc; 33-driving wheel; 34-first belt; 35-rotating member; 36-driving cylinder; 37-tension spring; 38-driving column; 39-second belt; 40-inflatable plate; 41-connecting rod; 42-one-way valve; 43-exhaust valve; 44-limiting member; 45-limiting groove; 46-circuit board; 47-second fixing clamp. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 10The present invention provides a technical solution: a semiconductor device welding positioning device, comprising a body 1, a flipping mechanism 2, a positioning mechanism 5 and an adjusting mechanism 8, the flipping mechanism 2 comprises a rotating disk 3 rotatably connected to the body 1, the rotating disk 3 is provided with a fixing member 4 for clamping and fixing a circuit board 46, and is used to drive the circuit board 46 to flip and adjust through the rotating disk 3, the positioning mechanism 5 comprises a positioning frame 6 installed on the rotating disk 3, the body 1 is provided with a limiting groove 45 that can be clamped with the positioning frame 6 in a flipped state, and the positioning frame 6 is provided with a plurality of groups of air bags 7, which are used to inflate the air bags 7 in a linkage manner in the initial stage of the operation of the flipping mechanism 2, so that the air bags 7 can contact and fix the components plugged on the circuit board 46, and when the air pressure value in the air bags 7 reaches the set value, the rotating disk 3 is driven to rotate 180 degrees to flip the components to the bottom of the circuit board 46, and the adjusting mechanism 8 is installed on the positioning frame 6, and is used to adjust the area where the air bags 7 are inflated according to the size of the circuit board 46, so that the air bags 7 that are just facing the upper area of ​​the circuit board 46 are inflated and positioned.

[0032] The adjustment mechanism 8 includes a plurality of positioning frames 9 fixedly mounted on the side of the positioning frame 6, an adjusting rod 10 is slidably connected in the horizontal direction inside the positioning frame 9, the airbag 7 is fixedly mounted on the bottom of the positioning frame 9 and the adjusting rod 10 respectively, the interior of the positioning frame 6 and the adjusting rod 10 are both hollow tubular designs, a guide tube 11 connected to the positioning frame 6 is fixedly connected in the positioning frame 9, the guide tube 11 is slidably connected to the inner wall of the adjusting rod 10 in the horizontal direction, and an adjusting member 12 is provided on the positioning frame 6 for adjusting the connection state between the guide tube 11 and the positioning frame 6.

[0033] The adjusting member 12 includes an adjusting plate 13 which is slidably connected to the inner walls of the two ends of the positioning frame 6 in a horizontal direction. An adjusting frame 14 for resisting and clamping the side wall of the circuit board 46 is fixedly connected to the side of the adjusting plate 13. An elastic pull rope 15 is fixedly connected between the two groups of adjusting plates 13. A first pipe 16 for connecting the airbag 7 and the guide tube 11 is opened in the positioning frame 9. The airbag 7 at the bottom of the adjusting rod 10 is connected to the inner wall of the adjusting rod 10.

[0034] The fixing member 4 includes a first fixing clamp 17 fixedly mounted on the rotating disk 3, a sliding rod 18 is slidably connected to the body 1 in the horizontal direction, one end of the sliding rod 18 is rotatably connected to the second fixing clamp 47, a return spring 19 fixedly connected to the sliding rod 18 is fixedly connected to the side of the body 1, a clamping rod 20 that can be clamped and fixed with both ends of the second fixing clamp 47 is provided in the body 1, one end of the multiple groups of adjusting rods 10 are fixedly connected to the side of the clamping rod 20, and the side of the positioning frame 9 is fixedly connected to a support rod 21 rotatably connected to both sides of the first fixing clamp 17.

[0035] The positioning mechanism 5 also includes a device box 22 fixedly installed in the body 1, and an inflation chamber 23 and an air storage chamber 24 are provided in the device box 22. The top of the air storage chamber 24 is connected to a second pipe 25, and one end of the second pipe 25 is coaxially rotatably connected to the rotating disk 3. A third pipe 26 connected to the positioning frame 6 is fixedly connected to the rotating disk 3. A fourth pipe 27 for connecting the second pipe 25 and the third pipe 26 is provided on the rotating disk 3. An inflation component 28 for inflation is provided in the inflation chamber 23.

[0036] The flipping mechanism 2 also includes a driving motor 29 fixedly installed in the body 1. The model of the driving motor 29 is preferably an LD60 micro motor. The output end of the driving motor 29 is coaxially fixedly connected with a driving shaft 30. The two sides of the air storage chamber 24 are respectively rotatably connected with a first disc 31 and a second disc 32. The driving shaft 30 passes through the first disc 31 and is fixedly connected to the first disc 31. A driving wheel 33 is rotatably connected in the body 1. The outer wall of the driving wheel 33 is transmission-connected with a first belt 34 transmission-connected to the rotating disk 3. A rotating part 35 is provided on the driving shaft 30 for driving the driving wheel 33 to rotate while linking the inflatable part 28 to operate.

[0037] The rotating member 35 includes a driving cylinder 36 which is slidably connected to the inner wall of the second disk 32 in a horizontal direction. One end of the driving cylinder 36 can be plugged into the inner wall of the driving wheel 33, so that the driving wheel 33 rotates synchronously. The driving shaft 30 is slidably connected to the inner wall of the driving cylinder 36 in a horizontal direction. One end of the driving cylinder 36 is fixedly connected to a tension spring 37 which is fixedly connected to the first disk 31. A limit member 44 is provided on the side of the driving wheel 33 for controlling the driving wheel 33 to perform a 180° flip limit.

[0038] The inflatable member 28 includes a driving column 38 rotatably connected to the device box 22, the outer wall of the driving column 38 is transmission-connected to a second belt 39 transmission-connected to the outer wall of the first disc 31, an inflatable plate 40 is slidably connected in the vertical direction in the inflatable chamber 23, the bottom of the inflatable plate 40 is rotationally connected to a connecting rod 41 rotationally connected to a non-center position on the side of the driving column 38, a one-way valve 42 is provided in the device box 22 for controlling the unidirectional suction of gas from the outside into the inflatable chamber 23 and then compressed into the air storage chamber 24, and an exhaust valve 43 is provided on the positioning frame 6 for discharging internal gas.

[0039] In this embodiment, the circuit board 46 is clamped between the first fixing clamp 17 and the second fixing clamp 47. At this time, the positioning frame 6 is flipped to the limit groove 45 for clamping and limiting. The circuit board 46 is in a horizontal state, which is convenient for plugging in the component pins. After the plugging is completed, the positioning frame is flipped 690°, so that the clamping rod 20 is clamped and fixed to the two sides of the second fixing clamp 47. The positioning frame 9 and the adjusting rod 10 cover the upper side of the circuit board 46. Since the adjusting rod 10 can slide horizontally in the positioning frame 9, the clamping rod 20 can adapt to circuit boards 46 of different widths when clamping. At this time, a part of the airbag 7 at the bottom of the adjusting rod 10 will be in the positioning frame 9, and the connection state between the upper end of the airbag 7 and the adjusting rod 10 here is blocked by the guide tube 11. Therefore, when the guide tube 11 is inflated, the airbag 7 here will not be inflated, and the gas will enter the airbag 7 through the first pipe 16 and the guide tube 11 to inflate the airbag 7 directly above the circuit board 46.

[0040] It is worth noting that: when flipping the positioning frame 6, it is necessary to pull the adjustment frames 14 at both ends outward so that the bottom side surfaces of the adjustment members 12 are in contact with and clamped on both sides of the circuit board 46, thereby sensing the width of the circuit board 46 and driving the adjustment plate 13 to slide in the positioning frame 6, thereby changing the number of guide tubes 11 connected to the inner wall of the positioning frame 6, so that the guide tubes 11 on the outside of the circuit board 46 will not be inflated when the positioning frame 6 is inflated, thereby making the airbag 7 above the surrounding area of ​​the circuit board 46 in a contracted state, reducing the amount of inflation.

[0041] When the driving motor 29 is running, it drives the driving shaft 30 to rotate, and the driving shaft 30 drives the first disc 31 so that the second belt 39 drives the driving column 38 to rotate, and the driving column 38 drives the connecting rod 41 to make the inflatable plate 40 reciprocate and rise and fall in the inflatable chamber 23, and the external gas is sucked into the inflatable chamber 23 through the one-way valve 42, and then compressed and input into the air storage chamber 24 through the one-way valve 42 on the upper side, and then transported to the positioning frame 6 through the second pipeline 25, the fourth pipeline 27 and the third pipeline 26, so that the guide tube 11 is pressurized, and the airbag 7 expands and contacts the upper side of the circuit board 46, and the components plugged above the circuit board 46 are contacted and limited to avoid loosening and falling off during the later flipping process.

[0042] At the initial stage of inflation, the air pressure intensity in the air storage chamber 24 is relatively low, and the tension spring 37 pulls the drive cylinder 36 away from the drive wheel 33. At this time, the drive shaft 30 drives the drive cylinder 36 to rotate without causing the drive wheel 33 to rotate. When the airbag 7 reaches the set strength, the expansion of the airbag 7 is increased by the resistance of the components and the circuit board 46, and the air pressure in the air storage chamber 24 continues to increase, which can push the drive cylinder 36 to slide out to the position where it is plugged into the drive wheel 33. The tension spring 37 is stretched, and the drive cylinder 36 is forced to contact the drive wheel 33 during the rotation process, and drives the drive wheel 33 to rotate 180°, so that the drive wheel 33 drives the first belt 34 to drive the rotating disk 3 to rotate, thereby realizing the flipping of the circuit board 46. After that, the pins at the bottom of the circuit board 46 can be welded, and the components flipped to the bottom are resisted by the airbag 7 and will not fall off.

[0043] After welding is completed, the rotating disk 3 can be turned back by driving the motor 29 to rotate in the opposite direction, and then the exhaust valve 43 is opened to discharge the gas in the air storage chamber 24 and the positioning frame 6, so that the air pressure in the airbag 7 can be reduced, the airbag 7 retracts, and the resistance to the circuit board 46 is released. The limit between the clamping rod 20 and the second fixing clamp 47 is opened, and the positioning frame 6 is turned over to a vertical state, and the circuit board 46 can be removed from between the first fixing clamp 17 and the second fixing clamp 47 to complete the operation.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semiconductor device welding positioning device, characterized in that: include: Body; Also includes: The flipping mechanism includes a rotating disk rotatably connected to the machine body, and a fixing member for clamping and fixing the circuit board is provided on the rotating disk, which is used to drive the circuit board to flip and adjust through the rotating disk; The positioning mechanism includes a positioning frame installed on the rotating disk. The positioning frame is provided with multiple groups of air bags, which are used to inflate the air bags in a linked manner at the initial stage of the operation of the flipping mechanism, so that the air bags can contact and fix the components plugged on the circuit board. When the air pressure value in the air bags reaches the set value, the rotating disk is driven to rotate 180 degrees to flip the components to the bottom of the circuit board; The adjusting mechanism is installed on the positioning frame and is used to adjust the area where the airbag is inflated according to the size of the circuit board, so that the airbag that is just facing the upper area of ​​the circuit board can be inflated and positioned. The adjusting mechanism includes multiple groups of positioning frames fixedly installed on the side of the positioning frame, and the positioning frame is slidably connected with an adjusting rod in the horizontal direction. The airbag is fixedly installed on the bottom of the positioning frame and the adjusting rod respectively. The interior of the positioning frame and the adjusting rod are both hollow tubular designs. A guide tube connected to the positioning frame is fixedly connected in the positioning frame, and the guide tube is slidably connected to the inner wall of the adjusting rod in the horizontal direction. The positioning frame is provided with an adjusting piece for adjusting the connection state between the guide tube and the positioning frame. The positioning mechanism also includes a device box fixedly installed in the machine body, and an inflation cavity and an air storage cavity are provided in the device box. The top of the air storage cavity The end is connected with a second pipe, one end of the second pipe is coaxially connected to the rotating disk, the rotating disk is fixedly connected with a third pipe connected to the positioning frame, the rotating disk is provided with a fourth pipe for connecting the second pipe and the third pipe, an inflatable part for inflation is provided in the inflation chamber, the flipping mechanism also includes a driving motor fixedly installed in the machine body, the output end of the driving motor is coaxially fixedly connected with a driving shaft, the two sides of the air storage chamber are respectively rotatably connected with the first disc and the second disc, the driving shaft passes through the first disc and is fixedly connected to the first disc, a driving wheel is rotatably connected in the machine body, the outer wall of the driving wheel is transmission-connected with a first belt transmission-connected to the rotating disk, and a rotating part is provided on the driving shaft for driving the driving wheel to rotate while linking the inflatable part to run.

2. The semiconductor device welding positioning device according to claim 1, characterized in that: The adjusting member includes an adjusting plate which is slidably connected to the inner walls at both ends of the positioning frame in a horizontal direction. The side of the adjusting plate is fixedly connected to an adjusting frame for resisting and clamping the side wall of the circuit board. An elastic pull rope is fixedly connected between the two groups of adjusting plates. A first pipe for connecting the airbag and the guide tube is opened in the positioning frame, and the airbag at the bottom of the adjusting rod is connected to the inner wall of the adjusting rod.

3. The semiconductor device welding positioning device according to claim 2, characterized in that: The fixing part includes a first fixing clamp fixedly mounted on the rotating disk, a sliding rod is slidably connected to the body in a horizontal direction, one end of the sliding rod is rotatably connected to the second fixing clamp, a side of the body is fixedly connected to a return spring fixedly connected to the sliding rod, a clamping rod is provided in the body that can be clamped and fixed with both ends of the second fixing clamp, one end of the multiple groups of adjusting rods are fixedly connected to the side of the clamping rod, and the side of the positioning frame is fixedly connected to a support rod rotatably connected to both sides of the first fixing clamp.

4. The semiconductor device welding positioning device according to claim 1, characterized in that: The rotating part includes a driving cylinder which is slidably connected to the inner wall of the second disc in a horizontal direction. One end of the driving cylinder can be plugged into the inner wall of the driving wheel to drive the driving wheel to rotate synchronously. The driving shaft is slidably connected to the inner wall of the driving cylinder in a horizontal direction. One end of the driving cylinder is fixedly connected to a tension spring which is fixedly connected to the first disc.

5. The semiconductor device welding positioning device according to claim 4, characterized in that: The inflatable part includes a driving column rotatably connected to the device box, the outer wall of the driving column is transmission-connected to a second belt transmission-connected to the outer wall of the first disk, an inflatable plate is slidingly connected in the inflation chamber along the vertical direction, the bottom of the inflatable plate is rotationally connected to a connecting rod rotationally connected to a non-center position of the side surface of the driving column, and a one-way valve is provided in the device box for controlling the one-way gas to be drawn into the inflation chamber from the outside and then compressed into the air storage chamber.

6. The semiconductor device welding positioning device according to claim 5, characterized in that: An exhaust valve for exhausting internal gas is provided on the positioning frame.

7. The semiconductor device welding positioning device according to claim 6, characterized in that: A limiting member for controlling the driving wheel to perform 180° flipping is provided on the side of the driving wheel, and a limiting groove capable of being engaged with the positioning frame in the flipped state is provided on the machine body.

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