A pressure gauge calibration platform

Abstract

The present invention provides a pressure gauge calibration platform, which relates to the field of pressure gauge detection and includes a frame, a radial pressure gauge, an axial pressure gauge, a turning frame, multiple groups of guide rails and multiple guide grooves. The turning frame is rotatably connected to the frame. Multiple groups of guide rails are equidistantly connected to one side of the turning frame. Each group of guide rails is composed of two guide rods. The guide rods are arranged obliquely downward, and the ends of the guide rods are arranged horizontally. The guide rails are used to temporarily store the radial pressure gauges. Multiple guide grooves are equidistantly connected to the other side of the turning frame. The guide grooves are arranged obliquely downward, and the ends of the guide grooves are arranged horizontally. The guide grooves are used to temporarily store the axial pressure gauges. The present invention solves the problem that the current automatic calibration platform for pressure gauges cannot automatically install radial pressure gauges and axial pressure gauges at the same time, and improves the batch calibration and inspection efficiency of the calibration platform.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure gauge detection, and specifically to a pressure gauge calibration platform. Background Art

[0002] A pressure gauge refers to an instrument that uses an elastic element as a sensitive element to measure and indicate a pressure higher than the ambient pressure, and is extremely widely used. It is almost everywhere in all industrial processes and scientific research fields. It can be seen everywhere in fields such as thermal pipelines, oil and gas transmission, water supply and gas supply systems, and vehicle repair and maintenance factories. Especially in industrial process control and technical measurement processes, due to the high mechanical strength and convenient production of the elastic sensitive element of the mechanical pressure gauge, the mechanical pressure gauge has been more and more widely used.

[0003] With the iteration of technology, the calibration operation of pressure gauges has developed from manual calibration to automatic calibration. There are currently many types of automatic calibration equipment, which integrate a pressure controller, a gas generator, an intelligent recognition system, etc., and can achieve good automated calibration operations.

[0004] However, since there are two types of pressure gauges, axial and radial, the current automatic calibration platform equipment cannot perform automatic installation operations on axial and radial pressure gauges at the same time, and can only calibrate and test one type of pressure gauge, which greatly affects the batch calibration efficiency of the automatic calibration platform. Therefore, a pressure gauge calibration platform is proposed here. Summary of the Invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art, and a pressure gauge calibration platform is proposed, which solves the problem that the current automatic calibration platform for pressure gauges cannot automatically install radial and axial pressure gauges at the same time, and improves the batch calibration and inspection efficiency of the calibration platform.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A pressure gauge calibration platform, including a frame, a radial pressure gauge, an axial pressure gauge, a turning frame, multiple groups of guide rails, and multiple guide grooves. The turning frame is rotatably connected to the frame. Multiple groups of guide rails are equidistantly connected to one side of the turning frame. Each group of guide rails is composed of two guide rods. The guide rods are inclined downward, and the ends of the guide rods are horizontal. The guide rails are used to temporarily store radial pressure gauges. Multiple guide grooves are equidistantly connected to the other side of the turning frame. The guide grooves are inclined downward, and the ends of the guide grooves are horizontal. The guide grooves are used to temporarily store axial pressure gauges.

[0007] Furthermore, it further includes a rotating frame, multiple camera recognition terminals, and a rotating cylinder. The rotating frame is rotatably connected to the frame. Multiple camera recognition terminals are equidistantly connected to the rotating frame. The rotating cylinder is connected to the frame, and the output end of the rotating cylinder is connected to the rotating frame.

[0008] Further, it further includes a clamping mechanism. The clamping mechanism is connected to the frame. The clamping mechanism cooperates with the turning frame to install the pressure gauge to be tested. The clamping mechanism includes a rotating shaft, a spline sleeve, a rotating arm, a plurality of clamping tools, a pull rod member, and a first electric push rod. The rotating shaft is rotatably connected to the frame. The spline sleeve is in spline fit with the rotating shaft. The rotating arm is fixedly connected to the spline sleeve. The rotating arm is arranged in a "T" shape. The plurality of clamping tools correspond to the guide rails and guide grooves one by one. The clamping tools are connected to the rotating arm. The pull rod member is slidably connected to the rotating arm. The pull rod member drives the clamping tools synchronously. The first electric push rod is connected to the rotating arm. The output end of the first electric push rod is fixedly connected to the pull rod member.

[0009] Further, it further includes a first annular member, a second annular member, a first spring rod, a second spring rod, and a guiding slide rod. The first annular member is fixedly connected to the frame through a connecting rod. The second annular member is fixedly connected to the frame through a connecting rod. The first annular member and the second annular member form a chute structure. The chute track is in a stepped shape. The rotating arm moves between the first annular member and the second annular member, and realizes the up and down operations along the stepped chute. The rotating arm moves up to clamp the pressure gauge to be tested. The rotating arm moves down to install the pressure gauge to be tested. The first spring rod is connected to one side of the first annular member. The first spring rod acts on the rotating arm to make it move down. The second spring rod is connected to one side of the second annular member. The second spring rod acts on the rotating arm to make it move up. The bottom of the first spring rod and the bottom of the second spring rod are both connected with guiding slide rods.

[0010] Further, it further includes a plurality of first limiting members and a plurality of second limiting members. A first limiting member is rotatably connected to the end of the guide rod. The first limiting member is used to limit the radial pressure gauge. A first torsion spring is connected to the rotating part of the first limiting member. A second limiting member is rotatably connected to the end of the guide groove. The second limiting member is used to limit the axial pressure gauge. A second torsion spring is connected to the rotating part of the second limiting member.

[0011] Further, it further includes a plurality of socket joints, a support plate, a plurality of rigid conduits, a plurality of return springs, a plurality of docking heads, a lower pressing plate, and a second electric push rod. The plurality of socket joints are slidably connected to the frame at equal intervals. The support plate is connected to the frame. The plurality of rigid conduits correspond to the socket joints one by one. The rigid conduits are communicated with the lower ends of the socket joints. The rigid conduits are slidably connected to the support plate. A hose is connected to the end of the rigid conduit. The plurality of return springs correspond to the rigid conduits one by one. The return springs are sleeved on the rigid conduits. The return springs provide acting force for the rigid conduits. The plurality of docking heads cooperate with the socket joints. The docking heads can be quickly inserted into the socket joints. The ports of the axial pressure gauge and the radial pressure gauge are both connected with docking heads. The lower pressing plate is slidably sleeved on the outside of all the socket joints. The second electric push rod is connected to the support plate. The output shaft of the second electric push rod is connected with a pressing member. The pressing member acts on the lower pressing plate.

[0012] Further, it further includes a first motor, a support shaft, a sliding box, a second motor and a third motor. The first motor is connected to the frame, the output shaft of the first motor is connected to the rotating shaft, the upper end of the support shaft is fixedly connected to the turning frame, the sliding box is slidably connected to the frame, the second motor is connected inside the sliding box, the output shaft of the second motor is fixedly connected to the lower end of the support shaft, the third motor is connected to the frame, and the output shaft of the third motor is linked with the sliding box through a gear-rack assembly.

[0013] Further, it further includes multiple groups of conveyor belts. The multiple groups of conveyor belts are connected to the frame and are used to respectively export the pressure gauges to be tested.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] First, through the multiple groups of guide rails provided in the present invention, a batch of radial pressure gauges can be temporarily stored, and through the multiple guide grooves provided, a batch of axial pressure gauges can be temporarily stored. The turning frame rotates to select an axial pressure gauge or a radial pressure gauge for inspection and calibration operations, and cooperates with the clamping mechanism to realize the automatic integration operation of clamping and installing the axial pressure gauge or the radial pressure gauge, solving the problem that the current automatic calibration platform for pressure gauges cannot automatically install radial pressure gauges and axial pressure gauges at the same time, and improving the batch calibration and inspection efficiency of the calibration platform.

[0016] Second, through the rotation operation of the rotating frame in the present invention, the rotation operation of multiple camera recognition terminals is realized. The camera recognition terminals are used to perform camera recognition on the display of the pressure gauges to be tested. Since the dial orientations of the axial pressure gauges and the radial pressure gauges are different in the detection area, the rotated rotating frame can drive the camera recognition terminals to adjust their positions, and thus both types of pressure gauges can be recognized and detected, improving the functionality of the present device.

[0017] Third, through the clamping mechanism provided in the present invention, the radial pressure gauge or the axial pressure gauge can be automatically clamped to the calibration and detection working area. Through the cooperation of the first annular member and the second annular member to form a stepped chute, when the rotating arm rotates with the spline sleeve and the rotating shaft, the rotating arm moves inside the stepped chute. When moving up and down the steps, the rotating arm forms an upward or downward movement. When the rotating arm moves upward, it drives the clamping tooling to move to the bottom of the guide rail or the guide groove to clamp the pressure gauge to be tested. After the rotating arm moves downward, it drives the clamping tooling to move, and then drives the pressure gauge to be tested for installation operations.

[0018] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the present inventionFigure One ;

[0020] Figure 2 Schematic diagram of the overall structure of the present invention Figure Two ;

[0021] Figure 3 Schematic diagram of the guide groove structure of the present invention;

[0022] Figure 4 Schematic diagram of the guide rod structure of the present invention;

[0023] Figure 5 Schematic diagram of the position of the rotating arm of the present invention;

[0024] Figure 6 Schematic diagram of the position of the sliding groove of the present invention;

[0025] Figure 7 Schematic diagram of the position of the pull rod member of the present invention;

[0026] Figure 8 Schematic diagram of the guide slide rod structure of the present invention;

[0027] Figure 9 Schematic diagram of the position of the rigid catheter of the present invention;

[0028] Figure 10 of the present invention Figure 4 Enlarged view of location A in

[0029] Figure 11 of the present invention Figure 3 Enlarged view of location B in

[0030] In the figure:

[0031] 1. Frame; 2. Radial pressure gauge; 3. Axial pressure gauge; 4. Rotating frame; 5. Guide rail; 6. Guide rod; 7. Guide groove;

[0032] 8. Gripping mechanism; 81. Rotating shaft; 82. Spline sleeve; 83. Rotating arm; 84. Clamping tooling; 85. Pull rod member; 86. First electric push rod;

[0033] 9. Rotary rack; 10. Camera recognition terminal; 11. Rotary cylinder; 12. First ring piece; 13. Second ring piece; 14. Chute; 15. First spring rod; 16. Second spring rod; 17. Guide slide rod; 18. First limit piece; 19. First torsion spring; 20. Second limit piece; 21. Second torsion spring; 22. Sleeve joint; 23. Support plate; 24. Rigid conduit; 25. Hose; 26. Return spring; 27. Docking head; 28. Lower pressing plate; 29. Second electric push rod; 30. Lower pressing piece; 31. First motor; 32. Support shaft; 33. Sliding box; 34. Second motor; 35. Third motor; 36. Gear-rack assembly; 37. Conveyor belt. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 - Figure 11 , the present invention provides the following implementation solutions: A pressure gauge calibration platform includes a frame 1, a radial pressure gauge 2, an axial pressure gauge 3, a turning frame 4, multiple groups of guide rails 5 and multiple guide grooves 7. The turning frame 4 is rotatably connected to the frame 1. Multiple groups of guide rails 5 are equidistantly connected to one side of the turning frame 4. Each group of guide rails 5 is composed of two guide rods 6. The guide rods 6 are inclined downward, and the ends of the guide rods 6 are horizontally arranged. The guide rails 5 are used to temporarily store the radial pressure gauges 2. Multiple guide grooves 7 are equidistantly connected to the other side of the turning frame 4. The guide grooves 7 are inclined downward, and the ends of the guide grooves 7 are horizontally arranged. The guide grooves 7 are used to temporarily store the axial pressure gauges 3.

[0036] In the above embodiments, through the multiple groups of guide rails 5 provided, a batch of radial pressure gauges 2 can be temporarily stored. Through the multiple guide grooves 7 provided, a batch of axial pressure gauges 3 can be temporarily stored. The turning frame 4 rotates to select an axial pressure gauge 3 or a radial pressure gauge 2 for inspection and calibration operations, and cooperates with the clamping mechanism 8 to realize the automatic integration operation of clamping and installing the axial pressure gauge 3 or the radial pressure gauge 2, solving the problem that the current automatic calibration platform for pressure gauges cannot automatically install the radial pressure gauges 2 and the axial pressure gauges 3 at the same time, and improving the batch calibration and inspection efficiency of the calibration platform.

[0037] Please pay special attention to Figure 1 , Figure 2 and Figure 9, it further includes a rotating frame 9, a plurality of camera recognition terminals 10 and a rotating cylinder 11. The rotating frame 9 is rotatably connected to the frame 1, the plurality of camera recognition terminals 10 are equidistantly connected to the rotating frame 9, the rotating cylinder 11 is connected to the frame 1, and the output end of the rotating cylinder 11 is connected to the rotating frame 9.

[0038] In the above embodiments, through the rotation operation of the rotating frame 9, the rotation operation of the plurality of camera recognition terminals 10 is realized. The camera recognition terminals 10 are used to perform camera recognition on the display of the pressure gauge to be measured. Since the dial orientations of the axial pressure gauge 3 and the radial pressure gauge 2 are different in the detection area, the rotated rotating frame 9 can drive the camera recognition terminals 10 to adjust their positions, so that both types of pressure gauges can be recognized and detected, improving the functionality of the device. The camera recognition terminals 10 are clearly existing technologies in the current pressure gauge calibration platform.

[0039] Please refer specifically to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , it further includes a clamping mechanism 8. The clamping mechanism 8 is connected to the frame 1, and the clamping mechanism 8 cooperates with the turning frame 4 to install the pressure gauge to be measured. The clamping mechanism 8 includes a rotating shaft 81, a spline sleeve 82, a rotating arm 83, a plurality of clamping tools 84, a pull rod 85 and a first electric push rod 86. The rotating shaft 81 is rotatably connected to the frame 1, the spline sleeve 82 is in spline fit with the rotating shaft 81, the rotating arm 83 is fixedly connected to the spline sleeve 82, the rotating arm 83 is arranged in a "T" shape, the plurality of clamping tools 84 correspond to the guide rails 5 and the guide grooves 7 one by one, the clamping tools 84 are connected to the rotating arm 83, the pull rod 85 is slidably connected to the rotating arm 83, the pull rod 85 drives the clamping tools 84 synchronously, and the first electric push rod 86 is connected to the rotating arm 83, and the output end of the first electric push rod 86 is fixedly connected to the pull rod 85;

[0040] It further includes a first annular member 12, a second annular member 13, a first spring rod 15, a second spring rod 16 and a guide slide rod 17. The first annular member 12 is fixedly connected to the frame 1 through a connecting rod, the second annular member 13 is fixedly connected to the frame 1 through a connecting rod, the first annular member 12 and the second annular member 13 form a chute 14 structure, the track of the chute 14 is stepped, the rotating arm 83 moves between the first annular member 12 and the second annular member 13, and the up and down operations are realized along the stepped chute 14. The rotating arm 83 moves up to clamp the pressure gauge to be measured, and the rotating arm 83 moves down to install the pressure gauge to be measured. The first spring rod 15 is connected to one side of the first annular member 12, and the first spring rod 15 acts on the rotating arm 83 to make it move down. The second spring rod 16 is connected to one side of the second annular member 13, and the second spring rod 16 acts on the rotating arm 83 to make it move up. The bottoms of the first spring rod 15 and the second spring rod 16 are both connected with a guide slide rod 17.

[0041] In the above embodiments, through the clamping mechanism 8 provided, the radial pressure gauge 2 or the axial pressure gauge 3 can be automatically clamped to the calibration and detection working area. By the cooperation of the first annular member 12 and the second annular member 13 to form a stepped chute 14, when the rotating arm 83 rotates with the spline sleeve 82 and the rotating shaft 81, the rotating arm 83 moves inside the stepped chute 14. When moving up and down the steps, the rotating arm 83 forms an upward or downward movement. When the rotating arm 83 moves upward, it drives the clamping tooling 84 to move to the bottom of the guide rail 5 or the guide groove 7 to clamp the pressure gauge to be measured. After the rotating arm 83 moves downward, it drives the clamping tooling 84 to move, and then drives the pressure gauge to be measured for installation operation.

[0042] Please refer specifically to Figure 3 、 Figure 4 、 Figure 10 and Figure 11 also includes a plurality of first limit members 18 and a plurality of second limit members 20. The end of the guide rod 6 is rotatably connected to the first limit member 18. The first limit member 18 is used to limit the radial pressure gauge 2. A first torsion spring 19 is connected to the rotating part of the first limit member 18. The end of the guide groove 7 is rotatably connected to the second limit member 20. The second limit member 20 is used to limit the axial pressure gauge 3. A second torsion spring 21 is connected to the rotating part of the second limit member 20.

[0043] In the above embodiments, the first limit member 18 limits the radial pressure gauge 2 on the guide rail 5. A batch of radial pressure gauges 2 are temporarily stored on the guide rail 5. The first limit member 18 at the end of the guide rail 5 supports and limits the radial pressure gauge 2 waiting for calibration and inspection. The second limit member 20 limits the axial pressure gauge 3 on the guide groove 7.

[0044] Please refer specifically to Figure 1 、 Figure 2 and Figure 9 also includes a plurality of socket joints 22, a support plate 23, a plurality of rigid conduits 24, a plurality of return springs 26, a plurality of docking joints 27, a lower pressing plate 28 and a second electric push rod 29. The plurality of socket joints 22 are slidably connected to the frame 1 at equal intervals. The support plate 23 is connected to the frame 1. The plurality of rigid conduits 24 correspond to the socket joints 22 one by one. The rigid conduits 24 communicate with the lower ends of the socket joints 22. The rigid conduits 24 are slidably connected to the support plate 23. Hoses 25 are connected to the ends of the rigid conduits 24. The plurality of return springs 26 correspond to the rigid conduits 24 one by one. The return springs 26 are sleeved on the rigid conduits 24. The return springs 26 provide acting forces for the rigid conduits 24. The plurality of docking joints 27 cooperate with the socket joints 22. The docking joints 27 can be quickly inserted into the socket joints 22. The ports of the axial pressure gauge 3 and the radial pressure gauge 2 are both connected with docking joints 27. The lower pressing plate 28 is slidably sleeved on the outer sides of all the socket joints 22. The second electric push rod 29 is connected to the support plate 23. The output shaft of the second electric push rod 29 is connected with a pressing member 30. The pressing member 30 acts on the lower pressing plate 28.

[0045] In the above embodiments, the sleeve joint 22 and the docking joint 27 are both existing technologies and are widely used on the current automatic calibration platform for pressure gauges. The purpose is to achieve rapid docking and have good sealing and pressure resistance. A slidable sliding sleeve is provided on the outside of the sleeve joint 22, and a spring is built into the sliding sleeve. After the sliding sleeve slides, the sleeve joint 22 and the docking joint 27 can be separated, and the hose 25 is connected to the external pressurized air source. The pressurized calibration method adopts the existing pressurized calibration technology, and the docking and separation operation is specifically as follows: the second electric push rod 29 drives the pressing member 30 to move downward, the pressing member 30 drives the pressing plate 28 to move downward, and the pressing plate 28 drives the sliding sleeves on all the sleeve joints 22 to move downward. At this time, the reset spring 26 is only slightly compressed until the sliding sleeve slides to the bottom, and the second electric push rod 29 continues to move downward, and the reset spring 26 will be highly compressed. At this time, the entire sleeve joint 22 and the hard conduit 24 move downward, so that the sleeve joint 22 can be separated from the docking joint 27.

[0046] Please refer to Figure 2 , Figure 3 and Figure 4 , also includes a first motor 31, a support shaft 32, a sliding box 33, a second motor 34 and a third motor 35. The first motor 31 is connected to the frame 1, the output shaft of the first motor 31 is connected to the rotating shaft 81, the upper end of the support shaft 32 is fixedly connected to the adjustment frame 4, the sliding box 33 is slidably connected to the frame 1, the second motor 34 is connected in the sliding box 33, the output shaft of the second motor 34 is fixedly connected to the lower end of the support shaft 32, the third motor 35 is connected to the frame 1, and the output shaft of the third motor 35 is linked to the sliding box 33 through the gear rack assembly 36.

[0047] In the above embodiment, the first motor 31 drives the rotating shaft 81 to rotate, thereby driving the clamping mechanism 8 to operate, the second motor 34 drives the supporting shaft 32 to rotate, thereby driving the adjusting frame 4 to rotate, so as to select the axial pressure gauge 3 or the radial pressure gauge 2 for calibration, and the third motor 35 drives the entire sliding box 33, the adjusting frame 4, the guide rail 5 and the guide groove 7 to slide through the gear rack assembly 36, and cooperates with the clamping mechanism 8 to clamp the pressure gauge to be tested.

[0048] Please refer to Figure 1 and Figure 2 , and also includes multiple groups of conveyor belts 37, which are connected to the frame 1 and are used to respectively export the pressure gauges to be tested.

[0049] In the above embodiment, multiple groups of conveyor belts 37 lead out the calibrated pressure gauges.

[0050] It should be noted that: The platform also has a necessary power system and a control processing terminal. The camera recognition terminal 10 is electrically connected to the control processing terminal. The control processing terminal receives and analyzes the information of the camera recognition terminal 10 and controls the device to perform pressurization calibration operations. All of these are clear prior arts and will not be elaborated here.

[0051] Working principle: The external conveyor belt 37 cooperates with the guide rail 5 and the guide groove 7 to feed workpieces. The batch of radial pressure gauges 2 are conveyed to the guide rail 5 through the external conveyor belt 37 and arranged in sequence. Under the cooperation of the first limit member 18 and the first torsion spring 19, the radial pressure gauges 2 are prevented from falling from the end of the guide rail 5. The batch of axial pressure gauges 3 are conveyed into the guide groove 7 and arranged in sequence. Under the cooperation of the second limit member 20 and the second torsion spring 21, the axial pressure gauges 3 are prevented from falling from the end of the guide groove 7. It is also possible to manually place a batch of pressure gauges to be tested on the guide rail 5 and the guide groove 7.

[0052] When calibrating the axial pressure gauge 3 or the radial pressure gauge 2, the third motor 35 operates to drive the gear-rack assembly 36 to move, thereby driving the sliding box 33, the support shaft 32, the second motor 34, the rotation frame 4, the guide rail 5 and the guide groove 7 away from the clamping mechanism 8. After the retraction movement is completed, the rotation of the guide rail 5 and the guide groove 7 is not interfered. The second motor 34 operates to drive the support shaft 32 to rotate 180 degrees. The support shaft 32 drives the rotation frame 4, the guide rail 5 and the guide groove 7 to rotate to select an axial or radial pressure gauge. Then the third motor 35 operates to make components such as the rotation frame 4, the guide rail 5 and the guide groove 7 move forward and wait for the clamping operation.

[0053] The first motor 31 is operated to drive the rotating shaft 81 to rotate. The rotating arm 83 moves in the stepped chute 14. The rotating arm 83 pushes the guide slide bar 17 obliquely arranged on the second spring rod 16, causing the second spring rod 16 to be compressed. At this time, the rotating arm 83 receives an upward acting force. When the rotating arm 83 rotates to one side of the rotation frame 4 and the clamping tools 84 are aligned with the docking heads 27 on the first row of pressure gauges to be tested, the first motor 31 stops operating. Due to the acting force of the second spring rod 16, the rotating arm 83 can cross the step of the chute 14 and move to the upper side of the chute 14. The spline sleeve 82 moves axially upward along the rotating shaft 81. At this time, the docking head 27 enters the inner side of the clamping tool 84. The first electric push rod 86 is operated, and the pull rod member 85 drives the clamping tool 84 to stably clamp the first row of pressure gauges to be tested. Then the third motor 35 operates, and the retraction operation is repeated. After the first limit member 18 or the second limit member 20 rotates and abuts against the pressure gauge to be tested, the first torsion spring 19 or the second torsion spring 21 is compressed until the first pressure gauge to be tested is transferred to the clamping tool 84. The subsequent pressure gauges to be tested fill the vacant positions. Due to the elastic force of the first torsion spring 19 or the second torsion spring 21, the first limit member 18 and the second limit member 20 are reset to perform the limit again.

[0054] After that, the second electric push rod 29 is operated to drive the downward pressing member 30 and the lower pressing plate 28, so that the sliding sleeve on the sleeve joint 22 moves to the lower end, and the sleeve joint 22 is in a state where it can be engaged. The first motor 31 continues to operate, driving the rotating shaft 81, the spline sleeve 82 and the rotating arm 83 to rotate. The rotating arm 83 moves on the upper side of the chute 14. After that, the rotating arm 83 abuts against the inclined guide rod 17 on the first spring rod 15, pushing the guide rod 17 at this position, so that the first spring rod 15 is compressed. At this time, the rotating arm 83 is subjected to a downward acting force. When the rotating arm 83 moves to one side of the sleeve joint 22 and the respective docking heads 27 are aligned with the sleeve joint 22, due to the acting force of the first spring rod 15, the rotating arm 83 moves to the lower side of the chute 14. During the downward movement of the rotating arm 83, the clamping tooling 84 and the pressure gauge to be measured are driven to move downward, so that the docking head 27 on the pressure gauge to be measured is inserted into the sleeve joint 22 to achieve engagement. The second electric push rod 29 moves, so that the lower pressing plate 28 and the sliding sleeve move upward to return to their original positions, realizing the stable engagement of the sleeve joint 22 and the docking head 27. After that, the existing pressurization and calibration technology is used to inflate and pressurize through the hose 25 and the rigid conduit 24 for calibration. After the calibration is completed, the second electric push rod 29 is operated to move the sleeve joint 22 and the rigid conduit 24 downward, and the return spring 26 is compressed, so that the sleeve joint 22 and the docking head 27 can be separated. The first motor 31 operates to drive the calibrated pressure gauge to the position of the conveyor belt 37, and the clamping tooling 84 is released for collection. The above operations are repeated to perform the automatic calibration and inspection operation.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A pressure gauge calibration platform, comprising a frame (1), a radial pressure gauge (2) and an axial pressure gauge (3), characterized in that: Also includes: A rotating frame (4) rotatably connected to the frame (1); A plurality of guide rails (5) are equidistantly connected to one side of the rotating frame (4), each guide rail (5) is composed of two guide rods (6), the guide rods (6) are arranged to be inclined downward, and the ends of the guide rods (6) are arranged horizontally, and the guide rails (5) are used to temporarily store the radial pressure gauge (2); A plurality of guide grooves (7) are equidistantly connected to the other side of the rotating frame (4), the guide grooves (7) are arranged to be inclined downward, the ends of the guide grooves (7) are arranged horizontally, and the guide grooves (7) are used to temporarily store the axial pressure gauge (3); A clamping mechanism (8) is connected to the frame (1), and the clamping mechanism (8) cooperates with the rotating frame (4) to install the pressure gauge to be tested; The clamping mechanism (8) comprises: A rotating shaft (81) rotatably connected to the frame (1); A spline sleeve (82) is spline-matched with the rotating shaft (81); A rotating arm (83) is fixedly connected to the spline sleeve (82), and the rotating arm (83) is arranged in a "T" shape; a plurality of clamping fixtures (84), corresponding one to one with the guide rail (5) and the guide groove (7), the clamping fixtures (84) being connected to the rotating arm (83); A pull rod (85) is slidably connected to the rotating arm (83), and the pull rod (85) synchronously drives the clamping tool (84); A first electric push rod (86) is connected to the rotating arm (83), and an output end of the first electric push rod (86) is fixedly connected to the pull rod member (85); Also includes: A first annular member (12) is fixedly connected to the frame (1) via a connecting rod; A second annular member (13) is fixedly connected to the frame (1) via a connecting rod; The first annular member (12) and the second annular member (13) form a slide groove (14) structure, and the track of the slide groove (14) is in a step shape; The rotating arm (83) moves between the first annular member (12) and the second annular member (13) to realize upward and downward movement operations along the stepped slide groove (14); the rotating arm (83) moves upward to clamp the pressure gauge to be tested, and the rotating arm (83) moves downward to install the pressure gauge to be tested; A first spring rod (15) connected to one side of the first annular member (12), the first spring rod (15) acting on the rotating arm (83) to move it downward; a second spring rod (16) connected to one side of the second annular member (13), the second spring rod (16) acting on the rotating arm (83) to move it upward; A guide slide bar (17), wherein the bottom of the first spring bar (15) and the bottom of the second spring bar (16) are both connected to the guide slide bar (17).

2. A pressure gauge calibration platform according to claim 1, characterized in that: Also includes: A rotating frame (9) rotatably connected to the frame (1); A plurality of camera recognition terminals (10) are equidistantly connected to the rotating frame (9); A rotary cylinder (11) is connected to the frame (1), and an output end of the rotary cylinder (11) is connected to the rotary frame (9).

3. A pressure gauge calibration platform according to claim 1, characterized in that: Also includes: a plurality of first limiting members (18), wherein the end of the guide rod (6) is rotatably connected to a first limiting member (18), the first limiting member (18) being used to limit the radial pressure gauge (2), and a first torsion spring (19) being connected to the rotational position of the first limiting member (18); A plurality of second limit members (20), wherein the end of the guide groove (7) is rotatably connected to a second limit member (20), the second limit member (20) is used to limit the axial pressure gauge (3), and a second torsion spring (21) is connected to the rotational position of the second limit member (20).

4. A pressure gauge calibration platform according to claim 1, characterized in that: Also includes: A plurality of sleeve joints (22) are equidistantly slidably connected to the frame (1); A support plate (23) connected to the frame (1); a plurality of hard conduits (24) corresponding one to the sleeve joints (22); the hard conduits (24) being in communication with the lower end of the sleeve joint (22); the hard conduits (24) being slidably connected to the support plate (23); and the ends of the hard conduits (24) being connected to hoses (25); a plurality of return springs (26), corresponding one to the hard conduit (24), the return springs (26) being sleeved on the hard conduit (24), and the return springs (26) providing a force for the hard conduit (24); A plurality of butt joints (27) matched with the sleeve joint (22); the butt joints (27) can be quickly plugged into the sleeve joint (22); ports of the axial pressure gauge (3) and the radial pressure gauge (2) are both connected to the butt joints (27); A lower pressing plate (28) connected to the outer sliding sleeves of all the sleeve joints (22); The second electric push rod (29) is connected to the support plate (23); the output shaft of the second electric push rod (29) is connected to a pressing member (30); and the pressing member (30) acts on the pressing plate (28).

5. A pressure gauge calibration platform according to claim 1, characterized in that: Also includes: A first motor (31) is connected to the frame (1), and an output shaft of the first motor (31) is connected to the rotating shaft (81); A support shaft (32), the upper end of which is fixedly connected to the rotating frame (4); A sliding box (33) slidably connected to the frame (1); A second motor (34) is connected to the sliding box (33), and an output shaft of the second motor (34) is fixedly connected to the lower end of the support shaft (32); The third motor (35) is connected to the frame (1), and the output shaft of the third motor (35) is linked to the sliding box (33) through a gear rack assembly (36).

6. A pressure gauge calibration platform according to claim 1, characterized in that: Also includes: A plurality of conveyor belts (37) are connected to the frame (1), and the plurality of conveyor belts (37) are used to respectively guide out the pressure gauges to be tested.

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