Calibration Patch Platform for Pressure Sensors with Automatic Feeding

Abstract

The invention discloses a calibration patch platform for a pressure sensor with automatic feeding, and relates to the technical field of pressure sensor patch with automatic feeding. The invention drives turntable one and turntable two to rotate by the rotation of a motor, so that a transmission tooth connected to a rotating shaft side rotates at a fixed angle, thereby completing the fixed distance movement of a chip component placed by a transmission limit belt, and then the rotation of turntable two drives the rotating plate to swing left and right through a fixed rod, thereby realizing the movement and flipping of a flip block installed on the top of a slider, and utilizing a pneumatic clamp installed on the flip block to complete the precise placement of a PCB board, and the continuous feeding operation of raw materials in the process of patching a pressure sensor can be realized by rotating a single-side motor, and the overall cost of the bonding equipment is low and the floor space is small.

Description

Technical Field

[0001] The invention relates to the technical field of pressure sensor patches with automatic feeding, in particular to a calibration patch platform for a pressure sensor with automatic feeding. Background Art

[0002] The SMT machine, also known as the placement machine, is an extremely core equipment in the SMT industry production line. The basic function of the SMT machine is to accurately mount electronic components (such as resistors, capacitors, integrated circuits, etc.) on the surface of the printed circuit board, replacing the traditional plug-in assembly method. The advantage of this is that it can increase the density of components on the circuit board, reduce the volume, and enhance the reliability and performance of the product;

[0003] For the patch operation of the pressure sensor, such as Figure 1 As shown, the entire pressure sensor is packaged in a PCB board, which contains a packaged pressure sensor and a signal conditioning chip. The sensor's offset, sensitivity, temperature drift and nonlinearity are digitally compensated. At the same time, a 21-bit ADC is used, and the conditioning chip has a built-in temperature sensor, which can output high-precision pressure and temperature values. It provides an IIC communication protocol interface and has strong anti-interference ability. All measurement data are fully calibrated and temperature compensated. It is widely used in medical electronics, wearable devices, sports and fitness equipment and other fields. For this type of structural pressure sensor patch operation, red glue and solder paste are applied to the PCB board in advance, and then the pressure sensor chip is adsorbed for bonding, and finally the two are fixed through a reflow soldering furnace;

[0004] This type of bonding operation relies on the clamping and placement of the robot arm to grab the pressure sensor on the conveyor bar and position it on the PCB board. Due to the involvement of the robot arm, the equipment is more complicated and occupies more space. At the same time, since traditional chips are transported by suction nozzles, it is difficult to Figure 1 When the combined raised package structure shown in the figure is adsorbed and transported, the pressure at the suction nozzle is insufficient due to the special shape of the chip, and the components are easily displaced during bonding. Once the components are displaced during the patch processing, the performance of the circuit board will be affected;

[0005] To this end, we propose a calibration patch platform for pressure sensors with automatic feeding. Summary of the invention

[0006] The purpose of the present invention is to provide a calibration patch platform for a pressure sensor with automatic feeding, so as to solve the problem that the pressure sensor patch platform with automatic feeding proposed in the above background technology has high overall cost, large floor space and is easy to cause chip deviation on the PCB board during suction and bonding by nozzle.

[0007] To achieve the above object, the present invention provides the following technical solution: a calibration patch platform for a pressure sensor with automatic feeding, comprising a box cover, wherein the inner walls on both sides of the box cover are symmetrically and movably connected with a rotating shaft through bearings, one end of the rotating shaft penetrates the box cover and is fixed with a transmission tooth through bolts, the outer wall of the rotating shaft is sleeved with a sleeve in sliding connection, and the outer wall of the sleeve is sleeved with a transmission limit belt;

[0008] The bottom inner wall of the box cover is slidably connected with an electric push rod 1, and one end of the electric push rod 1 is fixedly connected with a lifting sleeve column;

[0009] The top inner wall of the box cover is fixed with a motor by bolts, and the outer wall at the output end of the motor is sleeved with a first turntable, and the output end of the motor is fixed with a second turntable by bolts;

[0010] The inner wall of the box cover is fixed with a fixing plate by bolts, one side of the fixing plate penetrates the box cover and is fixedly connected with a plate cover, the inner wall of the box cover and the bottom of the fixing plate are provided with a slideway, and a slider is slidably connected in the slideway, a flip block is installed on the slider, and a pneumatic clamp is fixed to one end of the flip block by bolts;

[0011] The top of the box cover is fixedly connected with a fixing frame, one side of which passes through the box cover and fixes a limiting plate by spot welding, and the fixing frame is slidably connected with a pressing plate, one side of which passes through the box cover and abuts against the tops of the cams on the two sides of the turntable.

[0012] Furthermore, a limit stop column is fixed to the bottom inner wall of the box cover by bolts, and two sides of the limit stop column are in contact with the shaft sleeve.

[0013] Furthermore, a rotating arm 1 is fixed to an outer wall of one side of the transmission tooth by bolts, a claw pin 1 is installed on the rotating arm 1, and the end of the claw pin 1 abuts against the transmission tooth, the outer wall of the box cover is movably connected with a claw pin 2, and the end of the claw pin 2 abuts against the transmission tooth, and the end of the rotating arm 1 is movably connected with the rotating arm 2.

[0014] Furthermore, the top of the box cover is rotatably connected to a rotating arm three through a bearing, one end of the rotating arm three is slidably sleeved with the end of the second rotating arm, a spring is installed on the top of the box cover, and one side of the spring is connected to the rotating arm three, an electric push rod two is fixed to the top of the rotating arm three by bolts, a barrel rod is slidably connected to the rotating arm three, one end of the electric push rod two is fixed to one side of the barrel rod, and the bottom of the barrel rod is in contact with the top of the turntable one.

[0015] Furthermore, an inner wall of one side of the box cover is rotatably connected to a rotating plate through a bearing, one side of the rotating plate is movably connected to a fixing rod, one end of the fixing rod is sleeved with the outer walls of the cams on two sides of the turntable, and a protrusion on one side of the slider is slidably connected to the rotating plate.

[0016] Furthermore, an L-shaped groove is provided on the fixed plate, one side of the flip block is clamped with the L-shaped groove, the top of the limiting plate is symmetrically slidably connected with a clamping block, a through groove is provided on the limiting plate, and transmission grooves are symmetrically provided on the limiting top and on both sides of the through groove.

[0017] The calibration patch method for the pressure sensor with automatic feeding is:

[0018] Move the pressure sensor onto the conveyor limit belt, and put the corresponding PCB boards coated with red glue and solder paste into the board cover;

[0019] Start the motor inside the box cover, turntable 1 rotates one circle to drive arm 3 to swing up and down once, arm 3 drives arm 2 and arm 1 connected to arm 2 to swing up and down once, arm 1 rotates upward, but cannot drive the transmission gear to rotate due to the contact of claw pin 1, and when arm 1 swings downward, the transmission gear is driven to rotate a fixed angle through claw pin 1, so that the shaft sleeve connected to the shaft drives the transmission limit belt to rotate, and moves the pressure sensor to the top of the lifting sleeve column;

[0020] The turntable 2 connected to the output end of the motor rotates one circle, and the board cover automatically discharges the material, moving the single PCB board to the top of the limit plate. After the entire pneumatic clamp has placed the PCB board, it returns to the bottom of the board cover. At this time, the pressure plate on the fixed frame descends and presses the PCB board on the top of the limit plate. The lifting sleeve column at one end of the electric push rod pushes the pressure sensor to the connection position at the bottom of the PCB board, thereby completing the entire pressure sensor and PCB board pressing operation, and finally the conveyor belt on the limit plate moves the pressed plate out.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the motor drives the turntable 1 and the turntable 2 to rotate, and the up and down movement control of the turntable 3 is realized during the rotation of the turntable 1, and the transmission teeth connected to the rotating shaft side are rotated at a fixed angle, so as to complete the fixed distance movement of the chip component placed by the transmission limit belt, and then the rotation of the turntable 2 drives the turntable to swing left and right through the fixed rod, so as to realize the movement and flipping of the flip block installed on the top of the slider, and the pneumatic clamp installed on the flip block is used to complete the precise placement of the PCB board, and the continuous feeding operation of the raw materials in the process of pressure sensor patch can be realized by the rotation of the single-side motor, and the linkage is high. Compared with the independent mechanical arm clamping and placement, the overall cost of the bonding equipment is low and the floor space is small;

[0023] 2. In the present invention, the chip is turned upside down and pushed up to fit the PCB board using a contact tool to achieve a stable chip bonding operation. Compared with the air nozzle adsorption type chip transfer, it is limited by the chip shape. Special air nozzles need to be designed for special-shaped chips. In addition, during the chip transfer and bonding process, improper nozzle pressure adjustment may cause chip bonding deviation, thereby causing subsequent circuit board failure problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the pressure sensor of the present invention;

[0025] Figure 2 It is a schematic front view of a calibration patch platform for a pressure sensor with automatic feeding according to the present invention;

[0026] Figure 3 It is a schematic side view of a calibration patch platform for a pressure sensor with automatic feeding according to the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at aa;

[0028] Figure 5 This is a schematic diagram of the structure in which the flip block on the slider drives the pneumatic clamp to flip;

[0029] Figure 6 This is a schematic diagram of the overall structure of the flip block of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the pressing plate of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the transmission limiting belt connected to the shaft sleeve of the present invention;

[0032] Fig. 9 It is a schematic diagram of the connection of some structures of the limiting plate of the present invention.

[0033] In the figure: 1. box cover; 2. rotating shaft; 3. shaft sleeve; 4. transmission limit belt; 5. electric push rod 1; 6. lifting sleeve column; 7. limit column; 8. transmission gear; 9. rotating arm 1; 10. claw pin 1; 11. claw pin 2; 12. rotating arm 2; 13. rotating arm 3; 14. electric push rod 2; 15. cylinder rod; 16. spring; 17. motor; 18. turntable 1; 19. turntable 2; 20. fixed rod; 21. rotating plate; 22. slideway; 23. slider; 24. flip block; 25. fixed plate; 26. L-shaped groove; 27. pneumatic clamp; 28. plate cover; 29. ​​fixed frame; 30. limit plate; 31. through groove; 32. clamping block; 33. transmission groove; 34. pressing plate. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figure 1-9 , the present invention provides a technical solution:

[0036] like Figure 1 As shown, the entire pressure sensor chip is bonded to the PCB board, and then the two are fixed by welding in a reflow soldering furnace. For the bonding between the chips on the board, as shown in Figure 2 As shown, the entire box cover 1 is provided with mechanisms corresponding to the loading of the PCB board and the pressure sensor chip, and the loading mechanisms of the two need to match each other, so as to achieve the purpose of high-speed bonding. At the same time, the bonding method is changed from the original vertical downward pressing of the pressure sensor chip to upward lifting bonding. The flip-chip installation method ensures the stability of the solder paste and the red glue on the bonding side of the pressure sensor chip, avoiding the chip offset problem caused by the suction nozzle adsorption and pressing;

[0037] like Figure 2 As shown, a rotating shaft 2 is symmetrically movable on the inner wall of the entire box cover 1, and a shaft sleeve 3 is sleeved on the rotating shaft 2. When there is no limit abutment column 7 at the bottom of the box cover 1, the two sides of the shaft sleeve 3 are abutted. The entire shaft sleeve 3 can move left and right on the rotating shaft 2, which is convenient for adjusting the fitting position of the pressure sensor chip and the PCB board in the later stage;

[0038] A conveying limiting belt 4 is provided on the middle side of the shaft sleeve 3. The entire conveying limiting belt 4 is used for moving the pressure sensor chip. Figure 8 As shown, according to Figure 1 The pressure sensor structure shown uses a transmission limit belt 4 to clamp both sides of the pressure sensor, thereby avoiding the problem of misalignment and shaking when it moves;

[0039] For the intermittent fixed-distance movement of the entire conveying limit belt 4, the rotating shaft 2 is located on the outside of the box cover 1 and is sleeved and fixed with a transmission tooth 8. A rotating arm 9 is fixedly connected to one side of the transmission tooth 8. A claw pin 10 installed on the rotating arm 9 uses an elastic component to abut the outer wall of the transmission tooth 8. Similarly, a claw pin 2 11 is installed on the outside of the box cover 1 and abuts against the top of the transmission tooth 8. One end of the rotating arm 9 is slidably connected with a rotating arm 2 12. The end of the rotating arm 2 12 is slidably sleeved with the end of the rotating arm 3 13 rotatably connected to the top of the box cover 1, so that when the rotating arm 3 13 swings up and down, the rotating arm 9 is driven to move up and down through the rotating arm 2 12. When the rotating arm 9 rotates downward, the claw pin 10 at this time abuts against the transmission tooth 8, thereby driving the transmission tooth 8 to rotate clockwise. Figure 3As shown, on the contrary, when the rotating arm 1 9 rotates upward, it is abutted by the claw pin 2 11 against the transmission tooth 8, and the claw pin 2 11 cannot drive the transmission tooth 8 to rotate counterclockwise;

[0040] like Figure 2 As shown, the rotating arm 3 13 is located at the top of the box cover 1, and the rotating arm 3 13 presents a "seesaw" structure. An electric push rod 2 14 is fixed to the right side of the top of the rotating arm 3 13 by bolts, and a cylinder rod 15 is also slidably connected on the same side. The bottom roller of the cylinder rod 15 abuts against the rotating disk 18 rotating on the inner wall of the top of the box cover 1. Because the output end of the motor 17 is not connected to the center of the rotating disk 18, the rotating arm 3 13 is driven to swing up and down when the rotating disk 18 rotates, and the installed spring 16 assists the rotating arm 3 13 to swing quickly;

[0041] Since the up and down swing of the rotating arm three 13 controls the distance of the pressure sensor chip moved each time by the shaft sleeve 3, it is also necessary to coordinate the up and down swing time of the entire rotating arm three 13 when placing the pressure sensor chip on the transmission limit belt 4, and at the same time, it is also necessary to calculate the fitting position of the pressure sensor chip on the transmission limit belt and the PCB board placed on the top to improve the overall patch accuracy. For this purpose, the cylinder rod 15 can be pushed to move left and right by the electric push rod two 14 on the rotating arm three 13, so as to control the highest contact position of the cylinder rod 15 with the top of the turntable one 18, realize the up and down swing amplitude adjustment of the rotating arm three 13, and finally realize the single movement distance adjustment of the transmission limit belt 4 on the shaft sleeve 3;

[0042] Involving the placement of PCB boards on the bonding tooling, such as Figure 4 As shown, a turntable 2 19 is fixedly connected to the output end of the motor 17 in the box cover 1 behind the turntable 1 18. The turntable 2 19 is divided into a disc side and a cam side. Like the turntable 1 18, the turntable 2 19 also passes through the top of the box cover 1. The box cover 1 is fixedly connected to a fixing frame 29 on the side of the turntable 2 19. A pressure plate 34 is slidably connected to the fixing frame 29. Figure 7 As shown, a column on one side of the pressing plate 34 abuts against a cam side on the second rotating disk 19, and the entire pressing plate 34 moves up and down by rotating the second rotating disk 19. At the same time, a pressing column is fixed on one side of the bottom of the pressing plate 34 to press the top of the PCB board.

[0043] The fixing frame 29 is located inside the box cover 1 and connected to the limit plate 30. The installation of the limit plate 30 is used to place the PCB board. Due to the different shapes of the PCB boards, different limit fixtures are designed and installed to the bottom of the fixing frame 29. Here, a square PCB board is used. The entire limit plate 30 is as shown in FIG. Fig. 9As shown, a clamping block 32 with an opening and closing function is installed on one side of the limiting plate 30, wherein a cut surface is arranged on the inner side of the clamping block 32 for adjusting the position of the PCB board during the clamping process and facilitating the movement of the board after the bonding. A conveying groove 33 is provided on the limiting plate 30, and a conveyor belt is installed in the conveying groove 33 to realize the movement of the board. The PCB board is bonded with the pressure sensor chip, and a through groove 31 is provided on the entire limiting plate 30. After the bonding is completed in the later stage, the combined board is turned over and transported by a mechanical clamping arm;

[0044] A fixed plate 25 is fixedly connected to the inner wall of the box cover 1. The top of the entire fixed plate 25 passes through the box cover 1 and is installed with a plate cover 28. The operator calibrates the position of the mark points on the PCB boards and uniformly puts them into the plate cover 28. The pushing mechanism on the plate cover 28 is used to push out the single PCB board. For the PCB board receiving and transportation work, a rotating plate 21 is rotatably connected to the inner wall of the box cover 1, and a fixed rod 20 is movably connected to the cam side of the turntable 19. One end of the fixed rod 20 is movably connected to the rotating plate 21. At the same time, a slideway 22 is opened at the bottom of the fixed plate 25. A slider 23 is slidably connected to the slideway 22. One side of the rotating plate 21 is sleeved with the slider 23, so that when the rotating plate 21 is pulled by the fixed rod 20 to swing left and right, the slider 23 is driven to move left and right in the slideway 22;

[0045] A flip block 24 is movably connected to the slider 23. Figure 6 As shown, a pneumatic clamp 27 is fixed to one side of the flip block 24 by bolts. The pneumatic clamp 27 is installed to clamp the PCB board, and the other side of the flip block 24 is clamped with an L-shaped groove 26 opened on the fixing plate 25. Figure 4 As shown, when the turntable 19 rotates clockwise and pushes the rotating plate 21 to rotate to the left through the fixed rod 20, the slider 23 starts to drive the flip block 24 to move to the left. During the movement, the flip block 24 is abutted by the L-shaped groove 26 and starts to drive the pneumatic clamp 27 to flip. Finally, the pneumatic clamp 27 is located on the flip block 24 as shown in FIG. Figure 5 As shown, it comes to the bottom of the discharge port of the board cover 28 to clamp the single PCB board on the board cover 28, and when the turntable 2 19 continues to rotate clockwise, the pneumatic clamp 27 carrying the PCB board moves to the right through the slider 23, rotates 90 degrees clockwise to the top of the limit plate 30, and is abutted by the cam side on the turntable 2 19. At this time, the pressure plate 34 moves upward. After the PCB board is placed on the limit plate 30, the rotation of the turntable 2 19 will move the pneumatic clamp 27 to the bottom of the board cover 28. At this time, the pressure plate 34 without the cam abutting will descend to press the top of the PCB board;

[0046] After the loading of the pressure sensor chip on the conveying limit belt 4 and the PCB board on the limit plate 30 is completed, the bonding operation can be carried out. An electric push rod 5 is installed on the inner wall of the bottom of the box cover 1 and on the middle side of the conveying limit belt 4, and a lifting sleeve column 6 is fixed to the end of the electric push rod 5. The lifting sleeve column 6 is used to lift the pressure sensor chip on the conveying limit belt 4, and during the rising process, it is bonded with the PCB board pressed on the limit plate 30. The red glue applied on the PCB board in advance is used to complete the bonding work between the two, and then the conveyor belt on the limit plate 30 is moved out of the bonding position;

[0047] The entire turntable 18 and turntable 2 19 are installed on the output end of the motor 17. Therefore, the automatic loading and calibration of the two can be completed by rotating the single-side motor 17, and the electric push rod 15 is lifted to complete the bonding work between the two. The overall bonding efficiency is high, and the problem of bonding displacement of the pressure sensor chip on the PCB board is avoided.

[0048] The working process and principle of the present invention are as follows:

[0049] The pressure sensor is moved to the conveyor limit belt 4, and the corresponding PCB boards coated with red glue and solder paste are uniformly placed in the board cover 28;

[0050] Start the motor 17 in the box cover 1, the turntable 18 rotates one circle to drive the rotating arm 3 13 to swing up and down once, the rotating arm 3 13 drives the rotating arm 2 12 and the rotating arm 1 9 connected to the rotating arm 2 12 to swing up and down once, the rotating arm 1 9 rotates upward, and is abutted by the claw pin 10 and cannot drive the transmission gear to rotate. When the rotating arm 1 9 swings downward, the transmission gear 8 is driven to rotate a fixed angle through the claw pin 10, so that the shaft sleeve 3 connected to the rotating shaft 2 drives the transmission limit belt 4 to rotate, and moves the pressure sensor to the top of the lifting sleeve column 6;

[0051] The turntable 2 19 connected to the output end of the motor 17 rotates one circle, and cooperates with the board cover 28 to automatically discharge the material, and moves the single PCB board to the top of the limit plate 30. After the entire pneumatic clamp 27 has placed the PCB board, it returns to the bottom of the board cover 28. At this time, the pressing plate 34 on the fixed frame 29 descends and presses the PCB board on the top of the limit plate 30, and cooperates with the electric push rod 1 5 to lift the sleeve column 6 to push the pressure sensor to the connection position at the bottom of the PCB board, thereby completing the entire pressure sensor and PCB board pressing operation, and finally the conveyor belt on the limit plate 30 moves the pressed plate out.

[0052] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A calibration patch platform for a pressure sensor with automatic feeding, comprising a box cover (1), characterized in that: The inner walls of both sides of the box cover (1) are symmetrically and movably connected with rotating shafts (2) via bearings; one end of the rotating shaft (2) passes through the box cover (1) and is fixed with a transmission tooth (8) via bolts; the outer wall of the rotating shaft (2) is sleeved with a shaft sleeve (3) in sliding connection; the outer wall of the shaft sleeve (3) is sleeved with a transmission limiting belt (4); An electric push rod (5) is slidably connected to the inner wall of the bottom of the box cover (1), and a lifting sleeve column (6) is fixedly connected to one end of the electric push rod (5); A motor (17) is fixed to the top inner wall of the box cover (1) by means of bolts, and a first turntable (18) is sleeved and fixed to the outer wall at the output end of the motor (17), and a second turntable (19) is fixed to the output end of the motor (17) by means of bolts; A fixing plate (25) is fixed to the inner wall of the box cover (1) by means of bolts, one side of the fixing plate (25) penetrates the box cover (1) and is fixedly connected to a plate cover (28), a slideway (22) is provided on the inner wall of the box cover (1) and at the bottom of the fixing plate (25), a slider (23) is slidably connected in the slideway (22), a flip block (24) is mounted on the slider (23), and a pneumatic clamp (27) is fixed to one end of the flip block (24) by means of bolts; The top of the box cover (1) is fixedly connected to a fixing frame (29), one side of the fixing frame (29) passes through the box cover (1) and is fixed to a limiting plate (30) by spot welding, and a pressing plate (34) is slidably connected to the fixing frame (29), one side of the pressing plate (34) passes through the box cover (1) and abuts against the top of a cam on the side of the second turntable (19); The bottom inner wall of the box cover (1) is fixed with a limit stop column (7) by means of bolts, and two sides of the limit stop column (7) are in contact with the shaft sleeve (3); A rotating arm 1 (9) is fixed to an outer wall of one side of the transmission tooth (8) by means of bolts, a claw pin 1 (10) is mounted on the rotating arm 1 (9), and the end of the claw pin 1 (10) abuts against the transmission tooth (8), a claw pin 2 (11) is movably connected to the outer wall of the box cover (1), and the end of the claw pin 2 (11) abuts against the transmission tooth (8), and the end of the rotating arm 1 (9) is movably connected to the rotating arm 2 (12); The top of the box cover (1) is rotatably connected to a rotating arm three (13) via a bearing, one end of the rotating arm three (13) is slidably sleeved with the end of the rotating arm two (12), a spring (16) is installed on the top of the box cover (1), and one side of the spring (16) is connected to the rotating arm three (13), the top of the rotating arm three (13) is fixed with an electric push rod two (14) via bolts, a barrel rod (15) is slidably connected to the rotating arm three (13), one end of the electric push rod two (14) is fixed to one side of the barrel rod (15), and the bottom of the barrel rod (15) is in contact with the top of the turntable one (18); An inner wall of one side of the box cover (1) is rotatably connected to a rotating plate (21) via a bearing, and a fixing rod (20) is movably connected to one side of the rotating plate (21). One end of the fixing rod (20) is sleeved with an outer wall of a cam on a side of the second rotating disk (19), and a protrusion on one side of the sliding block (23) is slidably connected to the rotating plate (21).

2. The calibration patch platform for pressure sensors with automatic feeding according to claim 1, characterized in that: The fixing plate (25) is provided with an L-shaped groove (26), one side of the flip block (24) is clamped with the L-shaped groove (26), the top of the limiting plate (30) is symmetrically slidably connected with a clamping block (32), the limiting plate (30) is provided with a through groove (31), and the limiting top and two sides of the through groove (31) are symmetrically provided with transmission grooves (33).

3. The calibration patch platform for pressure sensors with automatic feeding according to claim 2, characterized in that: The calibration patch method for the pressure sensor with automatic feeding is: The pressure sensor is moved onto the conveyor limit belt (4), and the corresponding PCB boards coated with red glue and solder paste are uniformly placed into the board placement cover (28); The motor (17) located in the housing (1) is started, and the turntable 1 (18) rotates one circle to drive the turntable 3 (13) to swing up and down once. The turntable 3 (13) drives the turntable 2 (12) and the turntable 1 (9) connected to the turntable 2 (12) to swing up and down once. The turntable 1 (9) rotates upward and is abutted by the claw pin 1 (10) and cannot drive the transmission tooth to rotate. When the turntable 1 (9) swings downward, the claw pin 1 (10) drives the transmission tooth (8) to rotate a fixed angle, so that the connecting sleeve (3) on the rotating shaft (2) drives the transmission limit belt (4) to rotate, and moves the pressure sensor to the top of the lifting sleeve column (6); The turntable 2 (19) connected to the output end of the motor (17) rotates one circle, and cooperates with the board cover (28) to automatically discharge the material, and moves the single PCB board to the top of the limit plate (30). After the entire pneumatic clamp (27) has placed the PCB board, it returns to the bottom of the board cover (28). At this time, the upper pressure plate (34) of the fixed frame (29) descends and presses the PCB board on the top of the limit plate (30), and cooperates with the end of the electric push rod 1 (5) to lift the sleeve column (6) to push the pressure sensor to the connection position at the bottom of the PCB board, thereby completing the entire pressure sensor and PCB board pressing operation, and finally the upper conveyor belt of the limit plate (30) moves the pressed plate out.

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