An instrument calibration work platform

Abstract

This invention discloses an instrument calibration platform, comprising: a circular arc beam with an operating station on its open side; a conveyor belt installed on the open side of the circular arc beam; a turntable mounted on the circular arc beam; multiple testing components mounted on the turntable, each testing component comprising: a slot mounted on the turntable, a support plate slidably connected to the slot, and a constant temperature chamber mounted on the support plate, the top of the constant temperature chamber being equipped with two push-button air valves; a bracket mounted above the circular arc beam, one end of the bracket being connected to two ventilation pipes; and a control component, the control component comprising at least: a drive rod, one end of which is rotatably connected to the other end of the support, the other end of which is fastened to the circular arc beam. Implementing this instrument calibration platform can improve the automation level of instrument calibration and testing, reduce the investment in electrical equipment, and has a simplified structure, making it easy to repair and maintain.

Description

Technical Field

[0001] This invention relates to the field of instrument calibration technology, and in particular to an instrument calibration work platform. Background Technology

[0002] Existing instrument calibration systems suffer from the following defects due to their unreasonable structural design: 1. Different instruments and meters require different calibration equipment for wiring and calibration operations. This means that operators need to be familiar with the location of various instrument calibration equipment, and then connect the equipment to the instruments to be calibrated by picking it up and placing it in place before performing the calibration. For a large number of different types of instruments and meters to be calibrated, this not only increases the labor intensity of operators, but also greatly reduces the efficiency of instrument and meter inspection and processing.

[0003] 2. Ambient temperature can affect the accuracy of calibration. During on-site calibration, it is difficult to provide the calibration temperature required for instrument calibration, which in turn affects the accuracy of calibration. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an instrument calibration operation platform that can improve the automation level of instrument calibration and testing, reduce the investment in electrical equipment, and has a simple structure that is easy to repair and maintain.

[0005] To address the aforementioned technical problems, this invention provides an instrument calibration platform, comprising: A circular arc beam, with an operating station on its open side; a conveyor belt installed on the open side of the circular arc beam; a turntable mounted on the circular arc beam; multiple detection units mounted on the turntable, each detection unit including: a slot mounted on the turntable, a support plate slidably connected to the slot, and a constant temperature chamber mounted on the support plate, the top of the constant temperature chamber being equipped with two push-button air valves; a bracket mounted above the circular arc beam, one end of the bracket being connected to two ventilation pipes; and a control unit, which includes at least: a drive rod, one end of the drive rod... The other end opposite to the bracket is rotatably connected, and the other end of the drive rod is fastened to the arc beam. The instrument to be tested is transported to the operating position by the conveyor belt, and a testing component on the turntable that is compatible with the instrument to be tested is rotated to a position opposite to the operating position. The radial position of the pallet on the testing component relative to the turntable and the raising and lowering of the two ventilation pipes on the bracket are synchronously controlled by the drive rod, so that the two ventilation pipes are matched and connected to the two push-button air valves on the testing component.

[0006] The control components also include: a traction plate slidably disposed in the slot, the traction plate being installed at the bottom of the support plate; an intermediate gear meshing with the traction plate and the support plate respectively; a tension spring, the opposite ends of which are fastened to the support plate and the slot respectively; a transfer block; and a pull rope, one end of which is connected to the traction plate and the other end of which is connected to the transfer block. The drive rod is provided with a positioning plate, which lifts the transfer block. The transfer block is linked to the traction plate by the pull rope, causing the support plate to slide out of the constant temperature chamber relative to the slot.

[0007] One end of the slot is fixedly connected to a suspension plate, and a limiting plate is installed above the suspension plate. The transfer block is located above the limiting plate and the two are matched and plugged together. The positioning plate is connected to the output shaft end of the drive rod, and the positioning plate can be switched to be plugged into the transfer block of any detection component.

[0008] The output shaft of the drive rod is fixedly connected to a connecting shaft, and the top of the connecting shaft is fixedly connected to a connecting shaft. A U-shaped notch is provided on one side of the top beam of the bracket. Slide grooves adapted to the two ventilation pipes are provided on both sides of the U-shaped notch. The two ventilation pipes are fixedly connected by a rod shaft. A force rod is hinged to one side of the top beam. A first waist-shaped hole and a second waist-shaped hole are provided at the opposite ends of the force rod. The first waist-shaped hole and the second waist-shaped hole are respectively fitted onto the outside of the connecting shaft and the rod shaft.

[0009] The two ventilation pipes are an air inlet pipe and an air outlet pipe, respectively. The two ventilation pipes descend synchronously and press the two push-button air valves, so that the two ventilation pipes are connected to the inner cavity of the constant temperature chamber through the two push-button air valves.

[0010] The transfer block includes a longitudinal bar and a transverse bar. The bottom wall of the longitudinal bar is welded with two first insert shafts and one hanging shaft. The bottom wall of the transverse bar is welded with two second insert shafts. The positioning plate is provided with first insertion holes that are adapted to the two first insert shafts. The limiting plate is provided with second insertion holes that are inserted and matched with the second insert shafts.

[0011] The constant temperature chamber has an opening at the bottom and a double door on its front side, with the two door panels having an L-shaped cross-section.

[0012] The push-button air valve includes a T-shaped tube, a valve tube, and a support spring. The large end of the T-shaped tube is connected to the top wall of the constant temperature chamber. The valve tube is fitted inside the small end of the T-shaped tube, and its bottom is a blind end. An air passage notch is opened on the outer peripheral wall of the valve tube. A pad is fitted on the top of the valve tube. The support spring is fitted on the T-shaped tube, and its top end and the lower end face of the pad are pressed together.

[0013] The turntable has a positioning tube welded to its bottom, and a positioning sleeve fitted around the positioning tube in the middle of the arc beam. The positioning sleeve and the positioning tube are rotatably connected, and a servo motor is fixedly connected to its outer circumferential wall via a base. The output shaft of the servo motor is fixedly connected to a drive gear, and a driven gear that meshes with the drive gear is fixedly fitted around the outside of the positioning tube.

[0014] The upper end of the tray is in contact with the lower end of the constant temperature chamber. The upper end of the tray is fixedly connected to an equipment mounting platform for placing instrument calibration equipment. The tray also has a placement slot for placing the instruments to be tested.

[0015] The instrument calibration platform of the present invention has the following beneficial effects: First, controlling the turntable to rotate can move the testing components containing different instrument calibration equipment to the operating station. For the calibration processing of a large number of instruments of different types entering and leaving the warehouse, this greatly reduces the difficulty of calibration operations, reduces the labor intensity of calibration operations, and improves the efficiency of calibration processing.

[0016] Secondly, the movement of the pallet forward and backward can drive the instrument into and out of the constant temperature chamber, enabling each testing component to perform constant temperature calibration of the instrument, greatly improving the accuracy of the instrument calibration process.

[0017] Third, when the drive rod moves, it can control the entry and exit of the calibration equipment into the constant temperature chamber, open the push-button air valve of the ventilation duct and send air into the constant temperature chamber, and open and close the double door simultaneously. This greatly simplifies the manual participation in instrument calibration and testing, reduces the amount of electrical equipment required, and thus reduces the overall failure rate of the platform and the cost of subsequent maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the instrument calibration platform according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the bottom structure of the instrument calibration platform according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the control components of the instrument calibration platform according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram illustrating the structure of the drive rod for synchronously controlling the radial position of the pallet relative to the turntable and the lifting and lowering of the two ventilation pipes on the support, according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the explosive structure of the detection component of the instrument calibration platform according to an embodiment of the present invention.

[0024] Figure 6 This is an embodiment of the present invention. Figure 5 The diagram shows the bottom structure of the explosion structure of the detection component.

[0025] Figure 7 This is a schematic diagram of the push-button air valve of the instrument calibration platform according to an embodiment of the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1-7 The image shows an embodiment of the instrument calibration platform of the present invention.

[0028] The instrument calibration platform in this embodiment of the invention includes: a circular arc beam 1, with an operating station on the open side of the circular arc beam 1; a conveyor belt 9 installed on the open side of the circular arc beam 1; a turntable 2 mounted on the circular arc beam 1; and multiple testing components 3 mounted on the turntable 2. Each testing component 3 includes: a slot seat 31 mounted on the turntable 2, a support plate 32 slidably connected to the slot seat 31, and a constant temperature chamber 33 mounted on the support plate 32. The top of the constant temperature chamber 33 is equipped with two push-type air valves 6; and a bracket 4 mounted above the circular arc beam 1, with two ventilation pipes 5 connected to one end of the bracket 4.

[0029] The control component 7 includes at least one drive rod 71, one end of which is rotatably connected to the bracket 4 and the other end of which is fastened to the arc beam 1.

[0030] Specifically: the instrument to be tested is transported to the operating station via the conveyor belt 9; a testing component 3 on the turntable 2 that is compatible with the instrument to be tested is rotated to a position opposite to the operating station; the radial position of the support plate 32 on the testing component 3 relative to the turntable 2 and the lifting and lowering of the two ventilation pipes 5 on the support 4 are synchronously controlled by the drive rod 71, so that the two ventilation pipes 5 are matched and connected one by one with the two push-type air valves 6 on the testing component 3.

[0031] In practical implementation, the open side of the arc beam 1 is the operator's stand position when wiring. The conveyor belt 9 is located in front of the operator and is used to transport instruments. In application, the instrument calibration platform can be placed at the entrance of the warehouse. The turntable 2 can rotate to drive one of the testing components 3 to face the operating position, allowing the operator to calibrate and test the corresponding specifications of instruments through the testing component 3.

[0032] By controlling the turntable 2, the detection components 3 in other positions can be quickly switched to the operating position. Specifically, a positioning tube 21 is welded to the bottom of the turntable 2, and a positioning sleeve 12 is provided in the middle of the arc beam 1, which is sleeved on the outside of the positioning tube 21. The positioning sleeve 12 and the positioning tube 21 are rotatably connected, and a servo motor 8 is fixedly connected to its outer peripheral wall through a base. The output shaft of the servo motor 8 is fixedly connected to a drive gear 81, and a driven gear 211 that meshes with the drive gear 81 is fixedly sleeved on the outside of the positioning tube 21.

[0033] Furthermore, the testing component 3 includes a slot 31, a tray 32, and a constant temperature chamber 33. The slot 31 is fixed to the upper surface of the turntable 2, and the constant temperature chamber 33 is mounted on top of the slot 31, providing a constant ambient temperature, such as around 20 degrees Celsius, for the calibration and testing. The tray 32 is slidably positioned below the constant temperature chamber 33. Guide grooves are provided on both sides of the slot 31 near the top, and slide bars located in the guide grooves are fixedly connected to both sides of the tray 32. The bottom of the constant temperature chamber 33 is open, and a double door 331 is provided on its front side. The upper surface of the tray 32 and the lower surface of the constant temperature chamber 33 are in contact, and the tray 32, the constant temperature chamber 33, and the double door 331 form a nearly enclosed calibration space.

[0034] The upper end face of the tray 32 is in contact with the lower end face of the constant temperature chamber 33. The upper end face of the tray 32 is fixedly connected to the equipment mounting platform 321 for placing instrument calibration equipment. The tray 32 also has a placement slot 322 for placing the instrument to be tested. The tray 32 has a wire passage hole near the equipment mounting platform 321.

[0035] During implementation, instrument calibration equipment is installed on the top wall of the tray 32. When the double door 331 is opened, the tray 32 moves back and forth, which can move the instrument calibration equipment in and out of the calibration space. When the instrument calibration equipment is removed from the constant temperature chamber 33, the operator can connect the instrument to be tested and the instrument calibration equipment. After connecting the wires, the instrument is placed on the tray 32. After the tray 32 is reset, it will move the instrument and the instrument calibration equipment into the constant temperature chamber 33 together. Then, after closing the double door 331, the instrument can be calibrated.

[0036] Furthermore, the two ventilation pipes 5 are respectively the air inlet pipe and the air outlet pipe. The two ventilation pipes 5 descend synchronously and press the two push-button air valves 6, so that the two ventilation pipes 5 are connected to the inner cavity of the constant temperature chamber 33 through the two push-button air valves 6. Specifically, the top of the constant temperature chamber 33 is provided with two push-button air valves 6 that are adapted to the bottom openings of the two ventilation pipes 5. When the push-button air valves 6 are opened, they will be connected to the inner cavity of the constant temperature chamber 33. When one of the detection components 3 is in the operating position, the top openings of the two push-button air valves 6 on the current detection component 3 will be directly opposite the bottom openings of the two ventilation pipes 5. When the two ventilation pipes 5 descend synchronously and press the push-button air valves 6, the two ventilation pipes 5 will be connected to the inner cavity of the constant temperature chamber 33 through the two push-button air valves 6 respectively. In use, one of the ventilation pipes 5 is connected to the air outlet of the external air conditioning equipment through a hose. The air conditioning equipment outputs the constant temperature air required for calibration. The constant temperature air enters the constant temperature chamber 33, so that the constant temperature chamber 33 provides a constant temperature environment for instrument detection.

[0037] The function of the control component 7 is to control and operate the radial movement of the pallet 32 ​​on the detection component 3 relative to the turntable 2 and the synchronous lifting and lowering of the two ventilation pipes 5. This control component 7 has the advantage of reducing the amount of electrical equipment required, thereby reducing the failure rate and thus reducing the cost of later maintenance.

[0038] The control assembly 7 also includes: a traction plate 73 slidably disposed in the slot 31, the traction plate 73 being mounted on the bottom of the support plate 32; an intermediate gear 72 meshing with the traction plate 73 and the support plate 32 respectively; a tension spring 74, the opposite ends of the tension spring 74 being fastened to the support plate 32 and the slot 31 respectively; a transfer block 75; and a pull rope 76, one end of the pull rope 76 being connected to the traction plate 73, and the opposite end of the pull rope 76 being connected to the transfer block 75. The drive rod 71 is provided with a positioning plate 711, which lifts the transfer block 75. The transfer block 75 is linked to the traction plate 73 by the pull rope 76, causing the support plate 32 to slide out of the constant temperature chamber 33 relative to the slot 31.

[0039] In practice, the bottom of the slot 31 is fixedly connected with limiting strips located on both sides of the traction plate 73. The limiting strips and the traction plate 73 are slidably connected. The intermediate gear 72 is rotatably connected in the slot 31 and meshes with the opposite sides of the support plate 32 and the traction plate 73. Specifically, the opposite sides of the support plate 32 and the traction plate 73 are provided with teeth that mesh with the intermediate gear 72. The two ends of the intermediate gear 72 are rotatably connected to the two sides of the slot 31 through the support shaft. Thus, the traction plate 73 and the support plate 32 move in opposite directions.

[0040] Meanwhile, a suspension plate 311 is fixedly connected to one end of the slot 31, and a limiting plate 3112 is installed above the suspension plate 311. The transfer block 75 is located above the limiting plate 3112, and the two are connected by an interlocking fitting. When the transfer block 75 moves upward relative to the limiting plate 3112, it can disengage from the limiting plate 3112. The bottom of the transfer block 75 is connected to one end of the traction plate 73 via a pull rope 76. When the transfer block 75 moves upward, it will drive the traction plate 73 to move via the pull rope 76. A roller can be set at one end of the suspension plate 311 below the limiting plate 3112, and the pull rope 76 passes around the roller. The bottom of the support plate 32 is connected to one end of the slot 31 via a tension spring 74. The positioning plate 711 is connected to the output shaft end of the drive rod 71, and the positioning plate 711 can be interchanged with the transfer block 75 of any detection component 3 for vertical insertion.

[0041] In implementation, the bottom wall of the arc beam 1 is fixedly connected to a load-bearing beam located below the turntable 2 via two hangers. The load-bearing beam and the drive rod 71 are fixedly connected. The output shaft on the drive rod 71 is located at the center of the evenly distributed detection components 3. When the drive rod 71 moves, it drives the transfer block 75 to move up and down. The transfer block 75 and the positioning plate 711 are connected vertically. When the positioning plate 711 moves downward relative to the transfer block 75, the two can separate. In use, the positioning plate 711 faces the operating position. That is, when one of the detection components 3 is located at the operating position, the transfer block 75 is opposite to the limiting plate 3112 on the detection component 3 and the upper positioning plate 711 of the drive rod 71. When the positioning plate 711 moves upward, it can drive the transfer block 75 to disengage from the limiting plate 3112 on the current detection component 3 and move upward. Then, it can drive the traction plate 73 on the current detection component 3 to move through the pull rope 76. Therefore, when the driving rod 71 moves the positioning plate 711 up and down, it can control the tray 32 on the detection component 3 of the operating station to move radially back and forth relative to the turntable 2.

[0042] Preferably, the transfer block 75 includes: a longitudinal rod 751 and a transverse rod 752. The bottom wall of the longitudinal rod 751 is welded with two first insert shafts 7511 and one hanging shaft 7512. The bottom wall of the transverse rod 752 is welded with two second insert shafts 7521. The positioning plate 711 is provided with a first insertion hole 7111 that is adapted to the two first insert shafts 7511. The limiting plate 3112 is provided with a second insertion hole 31121 that is inserted and cooperates with the second insert shafts 7521.

[0043] Furthermore, the output shaft end of the drive rod 71 is fixedly connected to a connecting shaft 712, and the top of the connecting shaft 712 is fixedly connected to a connecting shaft 7121; a U-shaped notch 411 is provided on one side of the top crossbeam 41 of the bracket 4, and fitting grooves that are adapted to the two ventilation pipes 5 are provided on both sides of the U-shaped notch 411. The two ventilation pipes 5 are fixedly connected by a rod shaft 51. A force rod 412 is hinged to one side of the top crossbeam 41. A first waist-shaped hole 4121 and a second waist-shaped hole 4122 are respectively provided at the opposite ends of the force rod 412. The first waist-shaped hole 4121 and the second waist-shaped hole 4122 are respectively fitted onto the outside of the connecting shaft 7121 and the rod shaft 51.

[0044] During implementation, a semi-circular plate is fixedly connected inside the adapter slot, and the ventilation pipe 5 can move up and down along the semi-circular plate. The two ventilation pipes 5 are fixedly connected by a rod shaft 51. When the connecting shaft 7121 moves upward, under the transmission of the force rod 412, the rod shaft 51 will drive the two ventilation pipes 5 to descend synchronously, so that the two ventilation pipes 5 can press the two push-button air valves 6 at the same time, thereby controlling the opening of the two push-button air valves 6. Thus, when the driving rod 71 drives the positioning plate 711 to move up and down, it can control the synchronous up and down movement of the two ventilation pipes 5.

[0045] Furthermore, the temperature control chamber 33 has an opening at the bottom and a double door 331 on its front side, and the two door panels 3311 on the double door 331 have an L-shaped cross-section.

[0046] In practice, when the double doors 331 are opened and closed, the interior of the thermostat 33 remains in a nearly closed state, thus stabilizing the temperature inside the thermostat 33. A door hinge 33111 is fixedly connected to the top of the door panel 3311 at a corner. The door hinge 33111 penetrates the top wall of the thermostat 33 and is fixedly fitted with a first bevel gear 331111 located above the thermostat 33. A support plate 332 is fixedly connected to the upper surface of the thermostat 33. A drive shaft 3321 is rotatably connected to the support plate 332, and a torsion spring 3322 is provided at the rotatable connection. Second bevel gears 33211, meshing with the first bevel gears 331111 connected to the two door panels 3311, are fixedly connected to both ends of the drive shaft 3321. A pressing plate 33212 is fixedly connected to the middle of the drive shaft 3321.

[0047] The top of the support plate 332 has a notch, and one end of the pressing plate 33212 is located in the notch. One end of the torsion spring 3322 is fixedly connected to one side of the pressing plate 33212, and the other end is fixedly connected to one side of the notch. The function of the torsion spring 3322 is to provide elastic torsional force to the drive shaft 3321. An arc-shaped pressure plate 4123 located below the force rod 412 is fixedly connected to one end of the force rod 412 near the second waist-shaped hole 4122. When the force rod 412 drives the two ventilation pipes 5 to descend, the arc-shaped pressure plate 4123 will descend and one end will contact one side of the pressing plate 33212, and then push the pressing plate 33212 to swing down. At this time, the drive shaft 3321 will rotate, and under the meshing action of the first bevel gear 331111 and the second bevel gear 33211, it will drive the two door panels 3311 to open.

[0048] It is understandable that during the opening and closing of the door panel 3311, the support plate 32 will drive the instrument calibration equipment on it to move synchronously. For example, when the instrument calibration equipment moves out of the constant temperature chamber 33, the two door panels 3311 will open synchronously, and after being fully opened, the constant temperature chamber 33 will still be in a nearly closed state.

[0049] Furthermore, the push-button air valve 6 includes a T-shaped tube 61, a valve tube 62, and a support spring 63, wherein: the large end of the T-shaped tube 61 is connected to the top wall of the constant temperature chamber 33, the valve tube 62 is sleeved inside the small end of the T-shaped tube 61 and its bottom is a blind end; an air passage notch 621 is opened on the outer peripheral wall of the valve tube 62, a pad 622 is sleeved on the top of the valve tube 62, and the support spring 63 is sleeved on the T-shaped tube 61 and its top end is pressed against the lower end face of the pad 622.

[0050] During implementation, when the valve pipe 62 descends relative to the T-shaped pipe 61, the support spring 63 is compressed. The diameter of the bottom of the ventilation pipe 5 is larger than the outer diameter of the top of the valve pipe 62, but smaller than the outer diameter of the gasket 622. When the ventilation pipe 5 descends to contact the upper end face of the gasket 622, the top of the valve pipe 62 will enter the ventilation pipe 5. In order to reduce leakage, a sealing gasket can be attached to the upper end face of the gasket 622.

[0051] In the specific implementation of the instrument calibration platform in this embodiment of the invention, the servo motor 8, drive rod 71, instrument testing equipment and conveyor belt 9 are first electrically connected to an external controller PLC.

[0052] During operation, the instruments to be stored are placed at one end of the conveyor belt on the conveyor belt 9. The conveyor belt 9 is then controlled to move, so that the instruments are transported to the operating station. The servo motor 8 is then started, and the turntable 2 is driven to rotate under the meshing of the drive gear 81 and the driven gear 211. A detection component 3 on the turntable 2 that is compatible with the current instrument moves to the operating station. The drive rod 71 is then controlled to move, and the positioning plate 711 moves upward and is inserted into the first insertion shaft 7511 on the transfer block 75 through the first insertion hole 7111. As the positioning plate 711 continues to move upward, the transfer block 75 will rise and disengage from the limit plate 3112. At this time, the transfer block 75 will pull the traction plate 73 through the pull rope 76. Under the transmission of the intermediate gear 72, the support plate 32 will slide outward, and the instrument calibration equipment on it will follow.

[0053] During this process, the lever 412 will be pushed upward by the connecting shaft 7121, and the second waist-shaped hole 4122 will drive the two ventilation pipes 5 to descend through the rod shaft 51 and push the valve pipe 62 on the push-type air valve 6 to descend, so that the push-type air valve 6 opens.

[0054] After the push-type air valve 6 is opened, as the lever 412 continues to swing upward, the arc-shaped pressure plate 4123 contacts one side of the press plate 33212. The press plate 33212 is pushed, and the transmission shaft 3321 rotates. Under the meshing of the second bevel gear 33211 and the first bevel gear 331111, the door hinge 33111 begins to rotate, the two door panels 3311 open, the torsion spring 3322 is compressed, and at the same time the instrument calibration equipment is moved to the outside of the constant temperature chamber 33. Then, the external air conditioning equipment is controlled to send air into the constant temperature chamber 33, so that the temperature inside the constant temperature chamber 33 is constant. At this time, the operator takes the instruments on the conveyor belt 9 and places them in the placement slot 322, and then connects the current instruments and the instrument testing equipment.

[0055] After wiring, the control drive lever 71 is reset to the incomplete state. At this time, the push-type air valve 6 is in the open state, and the instruments and instrument calibration equipment will follow the tray 32 into the constant temperature chamber 33. At the same time, the two door panels 3311 are closed.

[0056] The current instrument calibration equipment is started by the controller. The operator observes the display screen on the instrument calibration equipment from the outside, thereby realizing the calibration process of this type of instrument. After the calibration is completed, the control tray 32 is moved outward, so that the instrument is removed from the constant temperature chamber 33. Then, the wires are disconnected and the instrument is removed and placed on the conveyor belt 9. The conveyor belt 9 is started to transport the instrument on it into the warehouse.

[0057] The instrument calibration platform of the present invention has the following beneficial effects: First, controlling the turntable to rotate can move the testing components containing different instrument calibration equipment to the operating station. For the calibration processing of a large number of instruments of different types entering and leaving the warehouse, this greatly reduces the difficulty of calibration operations, reduces the labor intensity of calibration operations, and improves the efficiency of calibration processing.

[0058] Secondly, the movement of the pallet forward and backward can drive the instrument into and out of the constant temperature chamber, enabling each testing component to perform constant temperature calibration of the instrument, greatly improving the accuracy of the instrument calibration process.

[0059] Third, when the drive rod moves, it can control the entry and exit of the calibration equipment into the constant temperature chamber, open the push-button air valve of the ventilation duct and send air into the constant temperature chamber, and open and close the double door simultaneously. This greatly simplifies the manual participation in instrument calibration and testing, reduces the amount of electrical equipment required, and thus reduces the overall failure rate of the platform and the cost of subsequent maintenance.

Claims

1. An instrument calibration platform, characterized in that, include: A circular arc beam, wherein an operating station is provided on the open side of the circular arc beam; A conveyor belt installed on the open side of the arc beam; A turntable mounted on the circular arc beam; Multiple detection components are installed on the turntable. Each detection component includes: a slot seat installed on the turntable, a support plate slidably connected to the slot seat, and a constant temperature chamber installed on the support plate. The top of the constant temperature chamber is equipped with two push-button air valves. A bracket installed above the circular arc beam, with two ventilation pipes connected to one end of the bracket; The control assembly includes at least: a drive rod, one end of which is rotatably connected to the other end opposite to the bracket, and the other end of which is fastened to the arc beam, wherein: The instrument to be tested is transported to the operating station via the conveyor belt, and a testing component on the turntable that is compatible with the instrument to be tested is rotated to a position opposite to the operating station. The drive rod synchronously controls the radial position of the tray on the testing assembly relative to the turntable and the raising and lowering of the two ventilation pipes on the bracket, so that the two ventilation pipes are matched and connected one by one with the two push-button air valves on the testing assembly.

2. The instrument calibration platform as described in claim 1, characterized in that, The control component also includes: A traction plate is slidably disposed within the slot seat, the traction plate being mounted on the bottom of the support plate; Intermediate gears that mesh with the traction plate and the support plate respectively; A tension spring, the opposite ends of which are respectively fastened to the support plate and the slot seat; Transfer block; A pull rope, one end of which is connected to the traction plate, and the other end of which is connected to the transfer block, wherein: The drive rod is equipped with a positioning plate. The positioning plate lifts the transfer block, and the transfer block is linked to the traction plate by the pull rope, so that the tray slides out of the constant temperature box relative to the slot seat.

3. The instrument calibration platform as described in claim 2, characterized in that, One end of the slot is fixedly connected to a suspension plate, and a limiting plate is installed above the suspension plate. The transfer block is located above the limiting plate, and the two are adapted to be plugged and connected. The positioning plate is connected to the output shaft end of the drive rod, and the positioning plate can be switched to be inserted into the transfer block of any detection component.

4. The instrument calibration platform as described in claim 3, characterized in that, The output shaft end of the drive rod is fixedly connected to a connecting shaft, and the top of the connecting shaft is fixedly connected to a connecting shaft. The top crossbeam of the bracket has a U-shaped notch on one side, and the two sides of the U-shaped notch have sliding grooves that are adapted to the two ventilation pipes respectively. The two ventilation pipes are fixedly connected by a rod shaft. A force rod is hinged to one side of the top crossbeam. A first waist-shaped hole and a second waist-shaped hole are respectively opened at the opposite ends of the force rod. The first waist-shaped hole and the second waist-shaped hole are respectively fitted onto the outside of the connecting shaft and the rod shaft.

5. The instrument calibration platform as described in claim 4, characterized in that, The two ventilation pipes are an air inlet pipe and an air outlet pipe, respectively. The two ventilation pipes descend synchronously and press the two push-button air valves, so that the two ventilation pipes are connected to the inner cavity of the constant temperature chamber through the two push-button air valves.

6. The instrument calibration platform as described in claim 3, characterized in that, The transfer block includes a longitudinal bar and a transverse bar. The bottom wall of the longitudinal bar is welded with two first insert shafts and one hanging shaft. The bottom wall of the transverse bar is welded with two second insert shafts. The positioning plate is provided with a first insertion hole that matches the two first insert shafts. The limiting plate is provided with a second insertion hole that engages with the second insert shafts.

7. The instrument calibration platform as described in claim 1, characterized in that, The constant temperature chamber has an opening at the bottom and a double door on its front side, and the cross-section of the two door panels on the double door is L-shaped.

8. The instrument calibration platform as described in claim 1, characterized in that, The push-button air valve includes a T-shaped tube, a valve tube, and a support spring, wherein: the large end of the T-shaped tube is connected to the top wall of the constant temperature chamber, and the valve tube is sleeved inside the small end of the T-shaped tube with its bottom being a blind end; The outer peripheral wall of the valve tube has an air passage notch, and a gasket is fitted on the top of the valve tube. The support spring is fitted on the T-shaped tube and its top end is pressed against the lower end face of the gasket.

9. The instrument calibration platform as described in claim 1, characterized in that, A positioning tube is welded to the bottom of the turntable, and a positioning sleeve is provided in the middle of the arc beam, which is fitted outside the positioning tube. The positioning sleeve and the positioning tube are rotatably connected, and a servo motor is fixedly connected to its outer peripheral wall through a base. The output shaft of the servo motor is fixedly connected to a drive gear, and a driven gear that meshes with the drive gear is fixedly sleeved on the outside of the positioning tube.

10. The instrument calibration platform as described in claim 1, characterized in that, The upper end face of the tray is in contact with the lower end face of the constant temperature chamber. The upper end face of the tray is fixedly connected to an equipment mounting platform for placing instrument calibration equipment. The tray is also provided with a placement slot for placing the instrument to be tested.

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