An automatic strain gauge sorting system

Abstract

The present invention discloses an automatic strain gauge sorting system, which belongs to the field of automatic strain gauge sorting. It includes a sorting platform, an upper industrial control instrument is arranged on the left side of the sorting platform, a longitudinal moving mechanism is arranged on the upper surface of the sorting platform, two vacuum adsorption devices are arranged above the longitudinal moving mechanism, a U-shaped frame is fixedly connected to the rear of the outer wall of the sorting platform, a fixed plate 1 is symmetrically fixedly connected to the upper surface of the U-shaped frame, and a fixed plate 2 is fixedly connected to the upper surface of the U-shaped frame between the two fixed plates 1; a U-shaped screw seat 1 is controlled to move back and forth left and right by a set motor, and a vacuum adsorption device can be controlled to move to the bottom of the U-shaped frame by a set motor 1, and when the detection probe is repeatedly moved left and right for detection by the motor 2, the motor 1 is started again, and the vacuum adsorption device is controlled to slowly move forward, and then a plurality of strain gauges are detected.

Description

Technical Field

[0001] The invention relates to the field of automatic strain gauge sorting, and in particular to an automatic strain gauge sorting system. Background Art

[0002] Resistance strain gauges are key components of experimental stress analysis, test and measurement technology, automatic detection and control technology, and weighing or force sensors. They have the characteristics of small size, small creep, good fatigue resistance and good stability. They are widely used in water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemical industry, weighing instruments and other industries.

[0003] In the prior art, when strain gauges are sorted, it is necessary to manually inspect the strain gauges and then screen and mark qualified and unqualified strain gauges. The screening and marking efficiency is low and needs to be improved. For this reason, we propose an automatic strain gauge sorting system. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a sorting device with faster detection efficiency; another purpose of the present invention is to provide a sorting device that can quickly mark and screen.

[0005] Technical solution: A strain gauge automatic sorting system, comprising a sorting table, an upper industrial control instrument is arranged on the left side of the sorting table, a longitudinal moving mechanism is arranged on the upper surface of the sorting table, two vacuum adsorption devices are arranged above the longitudinal moving mechanism, a U-shaped frame is fixedly connected to the rear of the outer wall of the sorting table, a fixed plate 1 is symmetrically fixedly connected to the upper surface of the U-shaped frame, a fixed plate 2 is fixedly connected to the upper surface of the U-shaped frame between the two fixed plates 1, both sides of the fixed plate 2 are rotatably connected to the two fixed plates 1 through a rotating shaft with a transverse screw rod, and the outer side walls of the two transverse screw rods are commonly threadedly connected to a U-shaped screw rod seat 1;

[0006] A contraction box is symmetrically fixedly connected to the lower part of the front surface of the U-shaped screw seat, and a lifting plate is slidably connected to the inside of the contraction box. The lower surface of the lifting plate is located below the contraction box and is fixedly connected to a detection probe. The upper surface of the lifting plate is fixedly connected to a pushing rod, and the top of the pushing rod passes through the top of the contraction box and is fixedly connected to a wedge-shaped pressure head. Two horizontal bars are installed on the lower surface of the U-shaped screw seat by bolts. A plurality of wedge-shaped notches are provided on the front surface of the horizontal bar. The tops of the two wedge-shaped pressure heads are respectively in contact with the lower surfaces of the two horizontal bars, and a pneumatic marking mechanism is provided on the upper surface of the U-shaped screw seat.

[0007] Furthermore, the longitudinal moving mechanism includes a moving guide rail, and the number of the moving guide rails is two. The interior of the moving guide rail is rotatably connected to a longitudinal screw rod through a rotating shaft, and the outer wall of the longitudinal screw rod is threadedly connected to a U-shaped screw rod seat 2. The rear end of the longitudinal screw rod passes through the rear of the moving guide rail and is fixedly connected to a transmission wheel. The outer walls of the two transmission wheels are jointly connected to a transmission belt. The top of the U-shaped screw rod seat 2 is fixedly connected to the upper surface of the vacuum adsorption device, and the bottom of the moving guide rail is fixedly connected to the upper surface of the sorting table.

[0008] Furthermore, an L-shaped bracket is fixedly connected to the rear surface of the sorting table, a motor 1 is fixedly connected to the inner side of the L-shaped bracket, and a front end of the output shaft of the motor 1 is fixedly connected to the rear surface of the transmission wheel located on the right side of the rear surface of the sorting table.

[0009] Furthermore, a motor 2 is fixedly connected to the right side of the fixed plate 1 located on the right side of the upper surface of the U-shaped frame, and the motor 2 is fixedly connected to the right end of the transverse screw rod located on the right side of the upper surface of the U-shaped frame, and the opposite ends of the two opposite transverse screw rods on the left and right are fixedly connected.

[0010] Furthermore, a through transverse groove is provided on the upper surface of the U-shaped frame at the outer side of the U-shaped screw seat 1, and the U-shaped screw seat 1 is slidably connected to the transverse groove.

[0011] Furthermore, the pneumatic marking mechanism includes an air source pump, the front end of the output end of the air source pump is fixedly connected to a transfer chamber, the left and right sides of the transfer chamber are respectively fixedly connected to solenoid valve 1 and solenoid valve 2, the opposite sides of solenoid valve 1 and solenoid valve 2 are fixedly connected to ventilation hoses, the bottom of the ventilation hose is fixedly connected to an air pressure box, the interior of the air pressure box is slidably connected to a piston block, the lower surface of the piston block is fixedly connected to a movable column, the bottom end of the movable column passes through the bottom of the air pressure box and is fixedly connected to a round rod, the outer side wall of the round rod is integrally formed with a spiral The groove is connected with a round block on the lower surface of the round rod through a rotating shaft, and a round tube is sleeved on the outer wall of the round block. An L-shaped connecting rod is fixedly connected to the upper surface of the round tube. The top of the L-shaped connecting rod extends to the inner side of the spiral groove and is slidably connected to the spiral groove. A mounting block is fixedly connected to the lower side of the outer wall of the round tube, and a marking pen is engaged with the inner side of the mounting block. A spring is fixedly connected between the round tube and the round block, the rear surface of the air pressure box is fixedly connected to the front surface of the U-shaped screw seat, and the bottom of the air source pump is fixedly connected to the upper surface of the U-shaped screw seat.

[0012] Furthermore, the outer wall of the mounting block is threadedly connected with a positioning bolt, and one end of the positioning bolt close to the round tube penetrates to the inner side of the mounting block and contacts the outer wall of the marking pen.

[0013] Furthermore, a pressure relief cylinder is integrally formed at the top of the transfer chamber, and a solenoid valve three is fixedly connected to the pressure relief cylinder and the transfer chamber, a piston plate is slidably connected to the inside of the pressure relief cylinder, and a plurality of springs two are fixedly connected between the piston plate and the pressure relief cylinder, and a through-type pressure relief hole is opened at the top of the pressure relief cylinder.

[0014] Furthermore, a plurality of springs three are fixedly connected between the shrinkage box and the lifting plate.

[0015] Beneficial effects:

[0016] The U-shaped screw seat 1 is controlled to move back and forth left and right by the set motor. The vacuum adsorption device can be controlled to move to the bottom of the U-shaped frame by the set motor 1. When the detection probe is controlled by the motor 2 to move back and forth left and right for detection, the motor 1 is started again to control the vacuum adsorption device to move forward slowly, and then multiple strain gauges are detected.

[0017] As the detection probe moves back and forth with the U-shaped screw seat, the wedge-shaped pressure head contacts and is pressed against the horizontal bar, pushing the detection probe down, thereby making it easier to contact the surface of the strain gauge for detection, thereby achieving the effect of multiple strain gauges moving with the detection probe and moving down at intervals for contact detection;

[0018] When detecting unqualified strain gauges, the air source pump is started, and air is inflated into the air pressure box, and the piston block is controlled to descend, so that the marking pen contacts the surface of the strain gauge and marks it. When the marking pen contacts and is pressed against the surface of the strain gauge, the marking pen rotates along the surface of the strain gauge to increase the marking range and avoid unclear marking, which may cause the problem of missing marks when sorting qualified and unqualified strain gauges.

[0019] When the strain gauges detected by the two detection probes are both unqualified, solenoid valve 1 and solenoid valve 2 are opened at the same time. At this time, the air source pump will inflate the air into the two air pressure boxes respectively, and control the marking pen to mark the activity. When one of the two strain gauges detected by the two detection probes is unqualified, the corresponding solenoid valve 1 or solenoid valve 2 is controlled to open, and the solenoid valve 3 is controlled to open at the same time, so that part of the gas filled by the air source pump enters the pressure relief cylinder for pressure relief. This method is different from the method of controlling the inflation of a single or two air pressure boxes and controlling the marking pen to mark the screening when different results are obtained from the simultaneous detection of two strain gauges. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the present invention;

[0021] Figure 2 It is a side structural schematic diagram of the present invention;

[0022] Figure 3It is a schematic diagram of the connection structure of the U-shaped frame, the transverse screw rod, the U-shaped screw rod seat and the pneumatic marking mechanism of the present invention;

[0023] Figure 4 It is a cross-sectional structural schematic diagram of the shrink box, the detection probe and the wedge-shaped pressure-bearing head of the present invention;

[0024] Figure 5 It is a schematic structural diagram of the horizontal bar of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional connection structure of the transfer chamber and the pressure relief cylinder of the present invention;

[0026] Figure 7 It is a partial cross-sectional schematic diagram of the connection structure of the air pressure box and the marking pen of the present invention;

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of a round tube of the present invention.

[0028] In the figure: 1. Sorting table; 2. Upper industrial control instrument; 3. Longitudinal moving mechanism; 4. Pneumatic marking mechanism; 5. U-shaped frame; 6. Fixed plate 1; 7. Fixed plate 2; 8. Horizontal screw; 9. U-shaped screw seat 1; 10. Contraction box; 11. Lifting plate; 12. Push rod; 13. Wedge-shaped pressure head; 14. Horizontal bar; 15. Wedge-shaped notch; 16. Vacuum adsorption device; 17. L-shaped bracket; 18. Motor 1; 19. Motor 2; 20. Horizontal groove; 21. Spring 3; 22. Detection probe; 301. Moving guide rail; 302. Longitudinal screw; 303. U-shaped screw seat 2; 304, transmission wheel; 305, transmission belt; 401, air source pump; 402, transfer chamber; 403, solenoid valve one; 404, solenoid valve two; 405, ventilation hose; 406, air pressure box; 407, piston block; 408, movable column; 409, round rod; 410, spiral groove; 411, round block; 412, round tube; 413, L-shaped connecting rod; 414, mounting block; 415, marking pen; 416, spring one; 417, positioning bolt; 418, pressure relief cylinder; 419, solenoid valve three; 420, piston plate; 421, spring two; 422, pressure relief hole. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, a strain gauge automatic sorting system is provided, including a sorting platform 1, an upper industrial control instrument 2 is arranged on the left side of the sorting platform 1, a longitudinal moving mechanism 3 is arranged on the upper surface of the sorting platform 1, and two vacuum adsorption devices 16 are arranged above the longitudinal moving mechanism 3, a U-shaped frame 5 is fixedly connected to the rear of the outer wall of the sorting platform 1, a fixed plate 1 6 is symmetrically fixedly connected to the upper surface of the U-shaped frame 5, a fixed plate 2 7 is fixedly connected to the upper surface of the U-shaped frame 5 between the two fixed plates 1 6, and the two sides of the fixed plate 2 7 are between the two fixed plates 1 6. The two transverse screw rods 8 are connected to each other through a rotating shaft, and the outer walls of the two transverse screw rods 8 are threadedly connected to a U-shaped screw rod seat 9. The right side of the fixed plate 6 located on the right side of the upper surface of the U-shaped frame 5 is fixedly connected to a motor 19. The motor 19 is fixedly connected to the right end of the transverse screw rod 8 located on the right side of the upper surface of the U-shaped frame 5. The opposite ends of the two transverse screw rods 8 on the left and right are fixedly connected. The upper surface of the U-shaped frame 5 is provided with a through transverse groove 20 on the outer side of the U-shaped screw rod seat 9, and the U-shaped screw rod seat 9 is slidably connected to the transverse groove 20.

[0031] The upper industrial control instrument 2 is used to realize intelligent automatic control. The two sets of vacuum adsorption devices 16 can adsorb multiple strain gauges at the same time. The two transverse screws 8 are controlled to rotate by the motor 2 19, and the U-shaped screw seat 1 9 is controlled to move back and forth left and right, and then the multiple strain gauges on the two sets of vacuum adsorption devices 16 can be reciprocated for detection;

[0032] The longitudinal moving mechanism 3 includes a moving guide rail 301, the number of which is two. The interior of the moving guide rail 301 is rotatably connected to a longitudinal screw rod 302 through a rotating shaft, the outer wall of the longitudinal screw rod 302 is threadedly connected to a U-shaped screw rod seat 2 303, the rear end of the longitudinal screw rod 302 passes through the rear of the moving guide rail 301, and is fixedly connected to a transmission wheel 304, the outer walls of the two transmission wheels 304 are jointly transmission-connected with a transmission belt 305, the top of the U-shaped screw rod seat 2 303 is fixedly connected to the upper surface of the vacuum adsorption device 16, the bottom of the moving guide rail 301 is fixedly connected to the upper surface of the sorting platform 1, the rear surface of the sorting platform 1 is fixedly connected to an L-shaped bracket 17, the inner side of the L-shaped bracket 17 is fixedly connected to a motor 18, and the front end of the output shaft of the motor 18 is fixedly connected to the rear surface of the transmission wheel 304 located on the right side of the rear surface of the sorting platform 1;

[0033] By setting up motor 18, under the drive of the transmission wheel 304 and the transmission belt 305, the vacuum adsorption device 16 can be controlled to move to the bottom of the U-shaped frame 5, and then as the motor 2 19 controls the detection probe 22 to move left and right repeatedly for detection, the vacuum adsorption device 16 is controlled to slowly move forward, so that the detection effect of multiple strain gauges adsorbed on the vacuum adsorption device 16 can be achieved.

[0034] like Figure 4 and Figure 5 As shown, a contraction box 10 is symmetrically fixedly connected to the lower part of the front surface of the U-shaped screw seat 19, and a lifting piece 11 is slidably connected to the inside of the contraction box 10. The lower surface of the lifting piece 11 is located below the contraction box 10 and is fixedly connected to a detection probe 22. The upper surface of the lifting piece 11 is fixedly connected to a push rod 12, and the top of the push rod 12 penetrates to the top of the contraction box 10 and is fixedly connected to a wedge-shaped pressure head 13. Two horizontal bars 14 are installed on the lower surface of the U-shaped screw seat 19 by bolt disassembly. A plurality of wedge-shaped notches 15 are opened on the front surface of the horizontal bar 14. The tops of the two wedge-shaped pressure heads 13 are respectively in contact with the lower surfaces of the two horizontal bars 14. A plurality of springs 21 are fixedly connected between the contraction box 10 and the lifting piece 11.

[0035] As the detection probe 22 moves back and forth with the U-shaped screw seat 9, the wedge-shaped pressure head 13 contacts and is pressurized by the horizontal bar 14, pushing the detection probe 22 down, thereby facilitating contact with the surface of the strain gauge for detection, thereby achieving an effect of multiple strain gauges moving with the detection probe 22 and descending for contact detection at intervals. The horizontal bar 14 can be disassembled and replaced with different specifications, so as to facilitate the control of the descending frequency during the reciprocating movement of the detection probe 22, and to adapt to detection under different conditions.

[0036] like Figure 6 ,like Figure 7 and Figure 8 As shown, a pneumatic marking mechanism 4 is provided on the upper surface of the U-shaped screw seat 9, and the pneumatic marking mechanism 4 includes an air source pump 401, and the front end of the output end of the air source pump 401 is fixedly connected to a transfer chamber 402, and the left and right sides of the transfer chamber 402 are respectively fixedly connected to a solenoid valve 1 403 and a solenoid valve 2 404, and the opposite sides of the solenoid valve 1 403 and the solenoid valve 2 404 are fixedly connected to a ventilation hose 405, and the bottom of the ventilation hose 405 is fixedly connected to an air pressure box 406, and the interior of the air pressure box 406 is slidably connected to a piston block 407, and the lower surface of the piston block 407 is fixedly connected to a movable column 408, and the bottom end of the movable column 408 penetrates to the bottom of the air pressure box 406 and is fixedly connected to a round rod 409, and the round rod 40 9 is integrally formed with a spiral groove 410 on the outer wall, a round block 411 is rotatably connected to the lower surface of the round rod 409 through a rotating shaft, a round tube 412 is sleeved on the outer wall of the round block 411, an L-shaped connecting rod 413 is fixedly connected to the upper surface of the round tube 412, the top of the L-shaped connecting rod 413 is extended to the inner side of the spiral groove 410, and is slidably connected to the spiral groove 410, a mounting block 414 is fixedly connected to the lower side of the outer wall of the round tube 412, a marking pen 415 is engaged with the inner side of the mounting block 414, a spring 416 is fixedly connected between the round tube 412 and the round block 411, the rear surface of the air pressure box 406 is fixedly connected to the front surface of the U-shaped screw seat 9, and the bottom of the air source pump 401 is fixedly connected to the upper surface of the U-shaped screw seat 9;

[0037] When detecting an unqualified strain gauge, the air source pump 401 is started, and air is charged into the air pressure box 406, and the piston block 407 is controlled to descend, so that the marking pen 415 contacts the surface of the strain gauge and marks it. When the marking pen 415 contacts and is pressurized with the surface of the strain gauge, as the gas continues to be charged into the air pressure box 406, the round rod 409 will continue to slide along the inside of the round tube 412, and the spiral groove 410 and the L-shaped connecting rod 413 will be moved to rotate the round tube 412, thereby driving the marking pen 415 to rotate along the surface of the strain gauge to mark, thereby increasing the marking range and avoiding unclear marking, which may cause the problem of missing marks when sorting qualified and unqualified strain gauges.

[0038] The outer wall of the mounting block 414 is threadedly connected with a positioning bolt 417, and one end of the positioning bolt 417 close to the round tube 412 penetrates the inner side of the mounting block 414 and contacts the outer wall of the marking pen 415;

[0039] It is convenient to disassemble and install the marking pen 415, so as to facilitate the replacement of the new marking pen 415;

[0040] A pressure relief cylinder 418 is integrally formed at the top of the transfer chamber 402. A solenoid valve 419 is fixedly connected to the pressure relief cylinder 418 and the transfer chamber 402. A piston sheet 420 is slidably connected inside the pressure relief cylinder 418. A plurality of springs 421 are fixedly connected between the piston sheet 420 and the pressure relief cylinder 418. A through pressure relief hole 422 is opened at the top of the pressure relief cylinder 418.

[0041] Since there are two detection probes 22, when the strain gauges detected by the two detection probes 22 are both unqualified, solenoid valve one 403 and solenoid valve two 404 are opened at the same time. At this time, the air source pump 401 will inflate and enter the two air pressure boxes 406 respectively, and control the marking pen 415 to mark the activity. When one of the two strain gauges detected by the two detection probes 22 is unqualified, the corresponding solenoid valve one 403 or solenoid valve two 404 is controlled to open, and the solenoid valve three 419 is controlled to open, so that part of the gas filled by the air source pump 401 enters the pressure relief cylinder 418 for pressure relief. This method is different from the method of controlling the inflation of a single or two air pressure boxes 406 and controlling the marking pen 415 to mark the screening when different results are obtained from the simultaneous detection of two strain gauges.

[0042] Working principle: During detection, multiple workpieces to be detected are placed on two vacuum adsorption devices 16 for adsorption and placement, and then the motor 18 is set, under the drive of the transmission wheel 304 and the transmission belt 305, the vacuum adsorption device 16 can be controlled to move to the bottom of the U-shaped frame 5, and then the motor 2 19 is started to control the detection probe 22 to move back and forth, and at the same time, the air source pump 401 is started to inflate the inside of the air pressure box 406 to control the marking pen 415 to move the mark, so that the same row of workpieces adsorbed on the hollow adsorption device 16 can be detected, and the vacuum adsorption device 16 is slowly moved forward by controlling the motor 18. As the detection probe 22 moves back and forth left and right, and as the vacuum adsorption device 16 moves forward, multiple rows of workpieces adsorbed on the vacuum adsorption device 16 can be detected. After the detection is completed, the workpiece moves to the front with the vacuum adsorption device 16, and the vacuum adsorption device 16 is closed to screen the workpieces after detection.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A strain gauge automatic sorting system, comprising a sorting table (1), characterized in that: An upper industrial control instrument (2) is arranged on the left side of the sorting platform (1), a longitudinal moving mechanism (3) is arranged on the upper surface of the sorting platform (1), two vacuum adsorption devices (16) are arranged above the longitudinal moving mechanism (3), a U-shaped frame (5) is fixedly connected to the rear of the outer wall of the sorting platform (1), a fixing plate 1 (6) is symmetrically fixedly connected to the upper surface of the U-shaped frame (5), a fixing plate 2 (7) is fixedly connected to the upper surface of the U-shaped frame (5) between the two fixing plates 1 (6), both sides of the fixing plate 2 (7) are rotatably connected to the two fixing plates 1 (6) via a rotating shaft with a transverse screw rod (8), and the outer walls of the two transverse screw rods (8) are commonly threadedly connected to a U-shaped screw rod seat 1 (9); A contraction box (10) is symmetrically fixedly connected to the lower part of the front surface of the U-shaped screw seat (9), and a lifting plate (11) is slidably connected inside the contraction box (10). The lower surface of the lifting plate (11) is located below the contraction box (10) and is fixedly connected to a detection probe (22). The upper surface of the lifting plate (11) is fixedly connected to a push rod (12), and the top of the push rod (12) passes through the top of the contraction box (10) and is fixedly connected to a wedge-shaped pressure head (13). Two horizontal bars (14) are installed on the lower surface of the U-shaped screw seat (9) by bolt disassembly, and a plurality of wedge-shaped notches (15) are opened on the front surface of the horizontal bar (14). The tops of the two wedge-shaped pressure heads (13) are respectively in contact with the lower surfaces of the two horizontal bars (14). A pneumatic marking mechanism (4) is provided on the upper surface of the U-shaped screw seat (9); The pneumatic marking mechanism (4) comprises an air source pump (401), the front end of the output end of the air source pump (401) is fixedly connected to a transfer chamber (402), the left and right sides of the transfer chamber (402) are respectively fixedly connected to a solenoid valve 1 (403) and a solenoid valve 2 (404), the opposite sides of the solenoid valve 1 (403) and the solenoid valve 2 (404) are fixedly connected to a ventilation hose (405), the bottom of the ventilation hose (405) is fixedly connected to an air pressure box (406), the interior of the air pressure box (406) is slidably connected to a piston block (407), the lower surface of the piston block (407) is fixedly connected to a movable column (408), the bottom end of the movable column (408) passes through the bottom of the air pressure box (406) and is fixedly connected to a round rod (409), the outer wall of the round rod (409) is integrally formed with a spiral groove (410 ), the lower surface of the round rod (409) is rotatably connected to a round block (411) via a rotating shaft, the outer wall of the round block (411) is sleeved with a round tube (412), the upper surface of the round tube (412) is fixedly connected to an L-shaped connecting rod (413), the top end of the L-shaped connecting rod (413) is extended to the inner side of the spiral groove (410) and is slidably connected to the spiral groove (410), a mounting block (414) is fixedly connected to the lower side of the outer wall of the round tube (412), a marking pen (415) is engaged on the inner side of the mounting block (414), a spring (416) is fixedly connected between the round tube (412) and the round block (411), the rear surface of the air pressure box (406) is fixedly connected to the front surface of the U-shaped screw seat (9), and the bottom of the air source pump (401) is fixedly connected to the upper surface of the U-shaped screw seat (9); A pressure relief cylinder (418) is integrally formed at the top of the transfer chamber (402); a solenoid valve three (419) is fixedly connected to the pressure relief cylinder (418) and the transfer chamber (402); a piston plate (420) is slidably connected to the inside of the pressure relief cylinder (418); a plurality of springs two (421) are fixedly connected between the piston plate (420) and the pressure relief cylinder (418); and a through-type pressure relief hole (422) is opened at the top of the pressure relief cylinder (418).

2. The strain gauge automatic sorting system according to claim 1, characterized in that: The longitudinal moving mechanism (3) comprises a moving guide rail (301), the number of the moving guide rails (301) being two, the interior of the moving guide rail (301) being rotatably connected to a longitudinal screw rod (302) via a rotating shaft, the outer wall of the longitudinal screw rod (302) being threadedly connected to a second U-shaped screw rod seat (303), the rear end of the longitudinal screw rod (302) passing through the rear of the moving guide rail (301) and being fixedly connected to a transmission wheel (304), the outer walls of the two transmission wheels (304) being jointly transmission-connected to a transmission belt (305), the top of the second U-shaped screw rod seat (303) being fixedly connected to the upper surface of the vacuum adsorption device (16), and the bottom of the moving guide rail (301) being fixedly connected to the upper surface of the sorting table (1).

3. The strain gauge automatic sorting system according to claim 2, characterized in that: An L-shaped bracket (17) is fixedly connected to the rear surface of the sorting platform (1), a motor 1 (18) is fixedly connected to the inner side of the L-shaped bracket (17), and a front end of an output shaft of the motor 1 (18) is fixedly connected to the rear surface of the transmission wheel (304) located on the right side of the rear surface of the sorting platform (1).

4. The automatic strain gauge sorting system according to claim 1, characterized in that: A second motor (19) is fixedly connected to the right side of the fixing plate 1 (6) located on the right side of the upper surface of the U-shaped frame (5); the second motor (19) is fixedly connected to the right end of the transverse screw rod (8) located on the right side of the upper surface of the U-shaped frame (5); and the opposite ends of the two opposite transverse screw rods (8) are fixedly connected.

5. The strain gauge automatic sorting system according to claim 1, characterized in that: The upper surface of the U-shaped frame (5) is provided with a through-type transverse groove (20) located outside the U-shaped screw seat (9), and the U-shaped screw seat (9) is slidably connected to the transverse groove (20).

6. The automatic strain gauge sorting system according to claim 1, characterized in that: The outer wall of the mounting block (414) is threadedly connected with a positioning bolt (417), and one end of the positioning bolt (417) close to the circular tube (412) penetrates the inner side of the mounting block (414) and contacts the outer wall of the marking pen (415).

7. The automatic strain gauge sorting system according to claim 1, characterized in that: A plurality of springs three (21) are fixedly connected between the shrinking box (10) and the lifting plate (11).

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