Full-automatic pressure gauge calibrating device

Abstract

The utility model provides a full-automatic pressure gauge calibrating device, which comprises a feeding and discharging mechanism used for conveying a pressure gauge to be calibrated from a feeding position to a gauge taking and placing position and conveying a calibrated pressure gauge from the gauge taking and placing position to a discharging position; the verification workbench comprises a joint connector and an image recognition device; the joint connector is used for receiving the to-be-detected pressure gauge grabbed by the manipulator and clamping and locking the to-be-detected pressure gauge, so that the pressure gauge is in sealed communication with the detection gas circuit, and the pressure gauge is loosened after the detection of the pressure gauge is completed; and the image recognition module is used for carrying out image acquisition on dial information of the pressure gauge, and reading a verification indicating value after image recognition processing. And the manipulator is used for grabbing the to-be-detected pressure gauge from the gauge taking and placing position and transferring the to-be-detected pressure gauge to the joint connector for clamping and locking, and is also used for grabbing the detected pressure gauge from the joint connector and transferring the detected pressure gauge to the gauge taking and placing position. According to the utility model, full-automatic calibration of the pressure gauge can be realized, and the calibration efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument calibration, in particular to a fully automatic pressure gauge calibration device. Background Art

[0002] The traditional calibration of pressure gauges is mostly carried out manually. That is, a pressure calibrator is prepared, and then the standard pressure gauge and the pressure gauge to be calibrated are simultaneously threadedly installed on the two pressure output ports of the pressure calibrator. Then, the pressure is manually or electrically controlled to the target pressure, and the indications of the standard pressure gauge and the pressure gauge to be calibrated are respectively observed, and the records are simultaneously entered into the calibration form. The calibration work of multiple calibration points specified in the calibration procedure is completed in the above manner. However, the traditional calibration method can only calibrate one pressure gauge at a time, and during the calibration process, manual work such as handling, loading and unloading the gauge, controlling the pressure, reading the value, and data recording is required. The degree of automation is low, the labor intensity is large, and the efficiency is not high. Therefore, based on the above traditional problems, there is an urgent need to propose a fully automatic pressure gauge calibration device. Content of the Utility Model

[0003] In order to solve at least one of the above technical problems, the utility model proposes a fully automatic pressure gauge calibration device, which can realize the full-automatic calibration of the pressure gauge and improve the calibration efficiency.

[0004] The utility model proposes a fully automatic pressure gauge calibration device, which is characterized in that the device includes: a loading and unloading mechanism, a manipulator and a calibration workbench;

[0005] The loading and unloading mechanism is used to transfer the pressure gauge to be calibrated from the loading position to the pick-and-place position, and transfer the calibrated pressure gauge from the pick-and-place position to the unloading position;

[0006] The calibration workbench includes: at least one joint connector and at least one image recognition device; the joint connector is used to receive the pressure gauge to be calibrated grabbed by the manipulator and clamp and lock it, so that the pressure gauge forms a sealed connection with the calibration gas circuit, and releases the pressure gauge after the pressure gauge is calibrated; the image recognition module is used to collect the image of the dial information of the pressure gauge, and read the calibration indication value after image recognition processing;

[0007] The manipulator is used to grab the pressure gauge to be calibrated from the pick-and-place position, transfer it to the corresponding joint connector for clamping and locking, and is also used to grab the calibrated pressure gauge from the corresponding joint connector and transfer it to the pick-and-place position.

[0008] Further, the device further includes a tray;

[0009] The pick-and-place position includes a first position opposite to the loading and unloading mechanism and a second position opposite to the unloading mechanism;

[0010] The loading and unloading mechanism is also used to transfer the tray carrying the pressure gauge to be inspected from the loading position to the first position, and to transfer the tray from the first position to the second position, and is also used to transfer the tray carrying the inspected pressure gauge from the second position to the unloading position.

[0011] Furthermore, the loading and unloading mechanism includes: a loading mechanism, a transfer mechanism, and an unloading mechanism, and the loading mechanism and the unloading mechanism are respectively located at both ends of the transfer mechanism;

[0012] The loading mechanism is used to successively lift and raise the multiple trays carrying the pressure gauges to be inspected stacked at the loading position to the first position;

[0013] The transfer mechanism is used to push the tray from the first position opposite to the loading mechanism to the second position opposite to the unloading mechanism;

[0014] The unloading mechanism is used to successively collect the trays carrying the inspected pressure gauges at the second position and stack them at the unloading position for centralized unloading.

[0015] Furthermore, the loading mechanism includes: a loading rack, a loading driving mechanism, and a loading lifting rack;

[0016] The loading driving mechanism is arranged on the loading rack, and the loading driving mechanism is used to drive the loading lifting rack to move up and down along the loading rack.

[0017] Furthermore, the loading driving mechanism includes a loading motor, a loading lead screw, a loading nut, and a loading guide rail;

[0018] The loading motor is arranged at the bottom end of the loading rack; the loading nut is fixedly arranged on the outer edge of the loading lifting rack; there is at least one loading guide rail, and they are respectively arranged in parallel with the loading lead screw on the loading rack; the loading motor drives the loading lead screw to rotate, and under the action of the thread fit between the loading lead screw and the loading nut, the loading lifting rack is driven to move up and down along the loading guide rail.

[0019] Furthermore, the loading lifting rack is in a hollow ring shape, the middle empty space of the loading lifting rack is adapted to the shape of the tray, and the size of the middle empty space of the loading lifting rack is larger than the size of the tray.

[0020] Furthermore, the loading mechanism also includes a loading telescopic support plate and a loading telescopic driving member;

[0021] The loading telescopic driving member is installed on the side wall of the loading lifting rack;

[0022] The loading telescopic support plate is connected to the loading telescopic driving member, and can extend into or retract from the middle empty space of the loading lifting rack under the action of the loading telescopic driving member.

[0023] Further, the loading lifting frame further includes two guiding side plates, which are arranged in parallel on both sides of the middle vacant position;

[0024] Each guiding side plate is provided with a slot, and the corresponding loading telescopic supporting plate extends through the slot into the middle vacant position of the loading lifting frame or retracts from the middle vacant position of the loading lifting frame to the slot.

[0025] Further, the conveying mechanism includes: a conveying driving member and a pushing and pulling member;

[0026] The unloading mechanism further includes an unloading telescopic supporting plate;

[0027] The pushing and pulling member is connected to the conveying driving member, and under the action of the conveying driving member, the tray carried on the loading telescopic supporting plate is pushed and pulled onto the unloading telescopic supporting plate of the unloading mechanism.

[0028] Further, the device further includes a material cart; a plurality of trays can be stacked on the material cart and are pushed into the loading mechanism or pushed out from the unloading mechanism along with the material cart;

[0029] A plurality of guiding columns are arranged at intervals on each tray, and the trays are stacked in alignment with each other through the guiding columns between two adjacent trays.

[0030] The full-automatic pressure gauge calibration device of the present invention replaces the traditional manual gauge calibration method, saves labor costs, and effectively improves the calibration efficiency of the pressure gauge.

[0031] The additional aspects and advantages of the present invention will be given in the following description part, some will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The structure diagram of a full-automatic pressure gauge calibration device of the present invention is shown;

[0033] Figure 2 is Figure 1 the structure diagram of the loading and unloading mechanism of;

[0034] Figure 3 is Figure 2 the structure diagram of the loading mechanism of;

[0035] Figure 4 is the structure diagram of the tray of the present invention.

[0036] Reference Signs:

[0037] Calibration workbench 100, joint connector 10, image recognition device 20, tapping mechanism 30;

[0038] Loading and unloading mechanism 200, loading mechanism 210, loading rack 211, loading motor 212, loading lead screw 213, loading nut 214, loading guide rail 215, loading lifting frame 216 (guide side plate 2161, slot 2162), loading telescopic driving member 217, loading telescopic supporting plate 218; conveying mechanism 220, conveying driving member 221, pushing and pulling member 222; unloading mechanism 230;

[0039] Manipulator 300, first robotic arm 310, second robotic arm 320, third robotic arm 330, rotating member 340, gripper member 350;

[0040] Pallet 400, guide post 410, case positioning member 420, joint positioning member 430;

[0041] Material cart 500. Detailed implementation manners

[0042] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0044] As Figures 1 to 4 shown, the present invention provides a full-automatic pressure gauge calibration device, and the device includes: a loading and unloading mechanism 200, a manipulator 300, and a calibration workbench 100;

[0045] The loading and unloading mechanism 200 is used to convey the pressure gauge to be calibrated from the loading position to the pick-and-place position, and convey the calibrated pressure gauge from the pick-and-place position to the unloading position;

[0046] The calibration workbench 100 includes: at least one joint connector 10 and at least one image recognition device 20; the joint connector 10 is used to receive the pressure gauge to be calibrated grabbed by the manipulator 300 and clamp and lock it, so that the pressure gauge is in sealed communication with the calibration gas path, and release the pressure gauge after the pressure gauge is calibrated; the image recognition module is used to collect the image of the dial information of the pressure gauge, and read the calibration indication value after image recognition processing;

[0047] The manipulator 300 is used to grab the pressure gauge to be calibrated from the pick-and-place position, transfer it to the corresponding joint connector 10 for clamping and locking, and is also used to grab the calibrated pressure gauge from the corresponding joint connector 10 and transfer it to the pick-and-place position.

[0048] It should be noted that the device further includes a pressure control mechanism for controlling the pressure of the calibration gas path to a preset calibration pressure value.

[0049] The calibration workbench 100 of the present utility model further includes at least one tapping mechanism 30, and at least one tapping mechanism 30 corresponds one-to-one with at least one connector 10 and at least one image recognition device 20 respectively. Each tapping mechanism 30 is adjacent to the corresponding connector 10 for tapping the pressure gauge during the calibration process of the pressure gauge, so as to facilitate the calibration indication value of the pressure gauge after tapping.

[0050] Furthermore, the device further includes a tray 400;

[0051] The gauge picking and placing position includes a first position opposite to the loading mechanism 210 and a second position opposite to the unloading mechanism 230;

[0052] The loading and unloading mechanism 200 is further configured to transfer the tray 400 carrying the pressure gauge to be calibrated from the loading position to the first position, and to transfer the tray 400 from the first position to the second position, and is further configured to transfer the tray 400 carrying the calibrated pressure gauge from the second position to the unloading position.

[0053] Furthermore, the loading and unloading mechanism 200 includes a loading mechanism 210, a conveying mechanism 220 and an unloading mechanism 230, and the loading mechanism 210 and the unloading mechanism 230 are respectively located at both ends of the conveying mechanism 220;

[0054] The loading mechanism 210 is configured to successively lift and raise a plurality of trays 400 stacked at the loading position to the first position;

[0055] The conveying mechanism 220 is configured to push the tray 400 from the first position opposite to the loading mechanism 210 to the second position opposite to the unloading mechanism 230;

[0056] The unloading mechanism 230 is configured to successively collect the trays 400 carrying the calibrated pressure gauges at the second position and stack them at the unloading position for centralized unloading.

[0057] Furthermore, the loading mechanism 210 includes a loading rack 211, a loading drive mechanism and a loading lifting rack 216;

[0058] The loading drive mechanism is arranged on the loading rack 211, and the loading drive mechanism is configured to drive the loading lifting rack 216 to perform a lifting motion in the loading rack 211.

[0059] Furthermore, the loading drive mechanism includes a loading motor 212, a loading lead screw 213, a loading nut 214, and a loading guide rail 215;

[0060] The loading motor 212 is arranged at the bottom end of the loading rack 211; the loading nut 214 is fixedly arranged on the outer edge of the loading lifting rack 216; there is at least one loading guide rail 215, and the loading guide rails 215 are respectively arranged in parallel with the loading lead screw 213 on the loading rack 211; the loading motor 212 drives the loading lead screw 213 to rotate, and under the action of the thread fit between the loading lead screw 213 and the loading nut 214, the loading lifting rack 216 is driven to move up and down along the loading guide rail 215.

[0061] Further, the loading lifting rack 216 is in a hollow ring shape, and the middle vacancy of the loading lifting rack 216 is adapted to the shape of the tray 400, and the size of the middle vacancy of the loading lifting rack 216 is larger than the size of the tray 400.

[0062] Preferably, the tray 400 is in a rectangular plate-like structure, the loading lifting rack 216 is in a rectangular ring structure, and the middle vacancy of the loading lifting rack 216 is rectangular, and the size of the rectangular vacancy is larger than the size of the rectangular tray 400, so that the loading lifting rack 216 can move from the upper side of the tray 400 to the lower side of the tray 400 or from the lower side of the tray 400 to the upper side of the tray 400 through the middle vacancy.

[0063] Further, the loading mechanism 210 further includes a loading telescopic support plate 218 and a loading telescopic driving member 217;

[0064] The loading telescopic driving member 217 is installed on the side wall of the loading lifting rack 216;

[0065] The loading telescopic support plate 218 is connected to the loading telescopic driving member 217, and can extend out of or retract from the middle vacancy of the loading lifting rack 216 under the action of the loading telescopic driving member 217.

[0066] Preferably, two loading telescopic driving members 217 and one loading telescopic support plate 218 form a set of loading support plate assemblies, and a set of loading support plate assemblies is respectively arranged on two parallel side walls of the rectangular lifting rack. In each set of loading support plate assemblies, the two loading telescopic driving members 217 are respectively connected to the same side of the loading telescopic support plate 218 at intervals, and the loading telescopic support plate 218 can extend out of or retract from the middle vacancy of the loading lifting rack 216 under the action of the two loading telescopic driving members 217.

[0067] Further, the loading lifting rack 216 further includes two guiding side plates 2161, and the two guiding side plates 2161 are arranged in parallel on both sides of the middle vacancy;

[0068] A narrow slot 2162 is formed on each guide side plate 2161 , and the corresponding loading telescopic support plate 218 extends to the middle empty space of the loading lifting frame 216 through the narrow slot 2162 , or retracts from the middle empty space of the loading lifting frame 216 to the narrow slot 2162 .

[0069] Furthermore, the transmission mechanism 220 includes: a transmission driving member 221 and a push-pull member 222;

[0070] The material unloading mechanism 230 also includes a material unloading telescopic support plate;

[0071] The push-pull member 222 is connected to the transmission driving member 221 , and under the action of the transmission driving member 221 , pushes and pulls the tray 400 carried on the loading telescopic support plate 218 to the unloading telescopic support plate of the unloading mechanism 230 .

[0072] Preferably, there are two transmission drive members 221, which are arranged in parallel on both sides of the loading and unloading mechanism 200, and the two transmission drive members 221 are respectively connected to the two ends of the push-pull member 222, and the middle part of the push-pull member 222 extends downward to form a protrusion. When the loading telescopic tray 218 of the loading mechanism 210 lifts the tray 400 to the first position, the push-pull member 222 is located on the side of the tray 400 away from the unloading mechanism 230; when the tray 400 needs to be transferred from the first position to the second position, the unloading telescopic tray of the unloading mechanism 230 is already in the second position, and then the two conveying drive members 221 drive the push-pull member 222 to move toward the unloading mechanism 230, and the protrusion of the push-pull member 222 pushes against the side edge of the tray 400 away from the unloading mechanism 230, and urges the tray 400 toward the unloading telescopic tray of the unloading mechanism 230 until the tray 400 completely falls into the unloading telescopic tray of the unloading mechanism 230.

[0073] Furthermore, the device further comprises a material cart 500; a plurality of trays 400 can be stacked on the material cart 500, and pushed into the loading mechanism 210 or pushed out from the unloading mechanism 230 along with the material cart 500;

[0074] A plurality of guide posts 410 are provided at intervals on each tray 400 , and the trays 400 are aligned and stacked with each other via the guide posts 410 .

[0075] It can be understood that each tray 400 is also provided with a plurality of case positioning members 420, and a joint positioning member 430 is provided near the case positioning member 420. The case positioning member 420 is circular, and its size is adapted to the case size of the pressure gauge, so as to accommodate and position the case portion of the pressure gauge; the joint positioning member 430 is composed of two V-shaped stop pins, so as to position the joint of the pressure gauge. Through the cooperation of the case positioning member 420 and the joint positioning member 430, the pressure gauge is positioned at the corresponding position of the tray 400.

[0076] Preferably, a first positioning structure (not shown in the figure) is further provided on the loading mechanism 210 or the unloading mechanism 230. The first positioning structure is used to position the material truck 500 at a set position on the loading mechanism 210 or the unloading mechanism 230, so as to avoid the problem of failed loading and unloading caused by the misalignment of the material truck 500 during the loading and unloading process of the loading mechanism 210 or the unloading mechanism 230.

[0077] A second positioning structure (not shown in the figure) is further provided on the material truck 500. The second positioning structure is used to position the tray 400 at a set position on the material truck 500.

[0078] It can be understood that the first positioning structure is used to position the positional relationship between the loading mechanism 210 or the unloading mechanism 230 and the material truck 500; the second positioning mechanism is used to position the positional relationship between the material truck 500 and the tray 400. Therefore, by means of the first positioning structure and the second positioning structure, the tray 400 for loading can be accurately positioned at the loading position of the loading mechanism 210, and the tray 400 for unloading can be accurately positioned at the unloading position of the unloading mechanism 230.

[0079] It can be understood that the structural design of the unloading mechanism 230 of the present utility model is similar to that of the loading mechanism 210. For the specific structure of the unloading mechanism 230, reference can be made to the above description of the specific structure of the loading mechanism 210, and the specific structure of the unloading mechanism 230 will not be described repeatedly here.

[0080] The manipulator 300 includes a first robotic arm 310, a second robotic arm 320, a third robotic arm 330, and a jaw assembly installed on the third robotic arm 330; the first robotic arm 310, the second robotic arm 320, and the third robotic arm 330 are perpendicular to each other, and under the action of the first robotic arm 310, the second robotic arm 320, and the third robotic arm 330, the jaw assembly can move freely in three-dimensional space. The jaw assembly includes a rotating member 340 and a jaw member 350. The rotating member 340 is arranged on the third robotic arm 330, and the jaw member 350 is arranged on the rotating member 340. When the manipulator 300 installs the pressure gauge onto the connector 10, the first robotic arm 310, the second robotic arm 320, and the third robotic arm 330 cooperate to align the jaw member 350 with the pressure gauge on the tray 400, and then the jaw member 350 grabs the pressure gauge. At this time, since the pressure gauge is in a flat state, it is necessary to rotate the jaw member 350 through the rotating member 340 and make the grabbed pressure gauge in a vertical state with the connector of the pressure gauge facing down. Finally, under the combined action of the first robotic arm 310, the second robotic arm 320, and the third robotic arm 330, the jaw member 350 is moved above the corresponding connector 10, and the connector of the pressure gauge is inserted into the connector 10.

[0081] It can be understood that the manipulator 300 can also be a six-axis manipulator, but it is not limited thereto.

[0082] The working principle of the full-automatic pressure gauge calibration device of the present utility model is as follows:

[0083] The material truck 500 for loading transports multiple stacked pallets 400 carrying pressure gauges to be inspected to the loading mechanism 210; at the same time, the empty material truck 500 for unloading is pushed into the unloading mechanism 230. The loading drive mechanism of the loading mechanism 210 drives the loading lifting frame 216 to move downward from the first position, and makes the topmost pallet 400 expose from the middle vacancy of the loading lifting frame 216. At this time, the loading lifting frame 216 is located between the topmost pallet 400 and the second-layer pallet 400; then the loading telescopic drive member 217 drives the loading telescopic support plate 218 to extend through the slot 2162 into the middle vacancy of the loading lifting frame 216 and be located below the topmost pallet 400. In the present utility model, the two loading telescopic support plates 218 on both sides extend towards the middle vacancy of the loading lifting frame 216 respectively and support the two side edges of the topmost pallet 400. At the same time, the two side edges of the topmost pallet 400 are respectively limited between the two guiding side plates 2161. Then, the loading drive mechanism drives the loading lifting frame 216 to rise, and makes the two loading telescopic support plates 218 on both sides lift the topmost pallet 400 and move upward until it reaches the first position. Then the manipulator 300 grabs a pressure gauge from the pallet 400 at the first position and installs it onto the corresponding joint connector 10. In the present utility model, the pallet 400 is fully loaded with 4 pressure gauges, and there are also 4 joint connectors 10. Therefore, the manipulator 300 sequentially grabs 4 pressure gauges from the pallet 400 at the first position and installs them onto the 4 joint connectors 10 respectively. At this time, the pallet 400 at the first position is an empty pallet 400. The conveying drive member 221 of the conveying mechanism 220 drives the pushing and pulling member 222 to push and pull the empty pallet 400 carried on the loading telescopic support plate 218 to the unloading telescopic support plate of the unloading mechanism 230 (at this time, the pallet is located at the second position). Then, the conveying drive member 221 of the conveying mechanism 220 drives the pushing and pulling member 222 to reset to the initial position (i.e., the side of the first position far from the second position). After that, the loading mechanism 210 continues to lift the second-layer pallet 400 to the first position in the aforementioned working mode to wait for the manipulator 300 to pick up materials. After the manipulator 300 installs all 4 pressure gauges to be inspected onto the 4 joint connectors 10, the pressure control mechanism controls the calibration gas path to the preset calibration pressure value, and performs full-automatic indication calibration on the 4 pressure gauges through the image recognition device 20, and automatically records the calibration results. After the calibration is completed, the manipulator 300 sequentially removes the calibrated pressure gauges from the 4 joint connectors 10 and places them onto the empty pallet 400 that has moved to the second position. Then, the unloading mechanism 230 lowers the pallet 400 carrying the calibrated pressure gauges to the unloading position. The first pallet 400 will directly fall onto the material truck 500 for unloading, and the subsequent pallets 400 will be stacked in sequence until the material truck 500 for unloading is full, and then the material truck 500 full of calibrated pressure gauges can be pushed out of the unloading mechanism 230 and a next empty material truck 500 is pushed in.The full-automatic calibration of the pressure gauge can be realized in the above manner, and the whole calibration process does not require manual intervention, effectively improving the calibration efficiency.

[0084] In another embodiment of the present utility model, there are m joint connectors 10 on the calibration workbench 100, and the number of pressure gauges that each tray 400 can be fully loaded with is a positive integer multiple of m. It is preset that there are 4 joint connectors 10 on the calibration workbench 100, and each tray 400 can be fully loaded with 8 pressure gauges. When the feeding mechanism 210 moves the uppermost tray 400 to the first position, the manipulator 300 sequentially grabs 4 pressure gauges to be calibrated from the tray 400 at the first position and installs them onto the 4 joint connectors 10 respectively. At this time, there are 4 pressure gauges to be calibrated remaining in the tray 400 at the first position. After the calibration of the previous 4 pressure gauges is completed, the manipulator 300 will sequentially place the 4 calibrated pressure gauges onto the empty positions of the tray 400 at the first position. Then, the manipulator 300 installs the remaining 4 pressure gauges to be calibrated onto the 4 joint connectors 10 in sequence. When the device calibrates the remaining 4 pressure gauges to be calibrated, the transmission driving part 221 of the transmission mechanism 220 drives the pushing and pulling part 222 to push and pull the tray 400 carried on the feeding telescopic support plate 218 (at this time, there are 4 calibrated pressure gauges on the tray 400) to the blanking telescopic support plate of the blanking mechanism 230 (at this time, the tray is in the second position). Then, the transmission driving part 221 of the transmission mechanism 220 drives the pushing and pulling part 222 to reset to the initial position. After that, the feeding mechanism 210 continues to lift the second-layer tray 400 to the first position in the aforementioned working manner to wait for the manipulator 300 to pick up materials. After the calibration of the remaining 4 pressure gauges is completed, the manipulator 300 sequentially removes the calibrated pressure gauges from the 4 joint connectors 10 and places them onto the empty positions of the tray 400 that has been moved to the second position. Finally, the blanking mechanism 230 unloads the tray 400 full of calibrated pressure gauges at the second position onto the material vehicle 500.

[0085] It can be understood that during the calibration of the last batch of pressure gauges to be calibrated on the previous tray 400 of the present utility model, the tray 400 is moved from the first position to the second position by the transmission mechanism 220. At this time, the first position is vacated, and the feeding mechanism 210 can prepare the next tray 400 to the first position. Later, after the calibration of the last batch of pressure gauges to be calibrated on the previous tray 400 is completed, the manipulator 300 places them onto the previous tray 400 at the second position in sequence. Later, the manipulator 300 can directly grab the pressure gauges to be calibrated from the next tray 400 at the first position and install them onto the corresponding joint connectors 10. Therefore, the loading and unloading mechanism 200 of the present utility model can realize the seamless connection of the loading and unloading work, effectively saving the waiting time of the manipulator 300 and further improving the batch calibration efficiency.

[0086] The full-automatic pressure gauge verification device of the present utility model replaces the traditional manual gauge verification method, saves labor costs, and effectively improves the verification efficiency of pressure gauges.

[0087] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A fully automatic pressure gauge calibration device, characterized in that: The device comprises: a loading and unloading mechanism, a manipulator and a calibration workbench; Loading and unloading mechanism, used to transfer the pressure gauge to be inspected from the loading position to the meter picking and placing position, and to transfer the inspected pressure gauge from the meter picking and placing position to the unloading position; The calibration workbench comprises: at least one joint connector and at least one image recognition device; the joint connector is used to receive the pressure gauge to be inspected grasped by the manipulator and clamp and lock it, so that the pressure gauge is sealed and connected with the calibration gas path, and release the pressure gauge after the pressure gauge has completed the calibration; the image recognition module is used to collect the image of the dial information of the pressure gauge, and read the calibration indication after the image recognition processing; The manipulator is used to grab the pressure gauge to be inspected from the pick-up and place position and transfer it to the corresponding joint connector for clamping and locking. It is also used to grab the inspected pressure gauge from the corresponding joint connector and transfer it to the pick-up and place position.

2. A fully automatic pressure gauge calibration device according to claim 1, characterized in that: The device also includes a tray; The pick-and-place table positions include a first position corresponding to a loading mechanism and a second position corresponding to a unloading mechanism; The loading and unloading mechanism is also used to transfer the pressure gauge to be inspected from the loading position to the first position, and to transfer the tray from the first position to the second position, and to transfer the tray with the inspected pressure gauge from the second position to the unloading position.

3. A fully automatic pressure gauge calibration device according to claim 2, characterized in that: The loading and unloading mechanism includes: a loading mechanism, a conveying mechanism and a unloading mechanism, and the loading mechanism and the unloading mechanism are respectively located at two ends of the conveying mechanism; A loading mechanism, used to sequentially lift a plurality of trays carrying pressure gauges to be inspected stacked at a loading position and raise them to a first position; A conveying mechanism, used for pushing the tray from a first position corresponding to the loading mechanism to a second position corresponding to the unloading mechanism; The unloading mechanism is used to collect the pallets carrying the inspected pressure gauges from the second position in sequence and stack them at the unloading position for centralized unloading.

4. A fully automatic pressure gauge calibration device according to claim 3, characterized in that: The feeding mechanism includes: a feeding frame, a feeding driving mechanism and a feeding lifting frame; The feeding drive mechanism is arranged on the feeding frame, and the feeding drive mechanism is used for driving the feeding lifting frame to perform lifting movement along the feeding frame.

5. A fully automatic pressure gauge calibration device according to claim 4, characterized in that: The feeding drive mechanism includes a feeding motor, a feeding screw, a feeding nut, and a feeding guide rail; The feeding motor is arranged at the bottom end of the feeding rack; the feeding nut is fixedly arranged on the outer edge of the feeding lifting rack; there is at least one feeding guide rail, which is respectively arranged on the feeding rack in parallel with the feeding screw; the feeding motor drives the feeding screw to rotate, and under the cooperation of the threads of the feeding screw and the feeding nut, drives the feeding lifting rack to move up and down along the feeding guide rail.

6. A fully automatic pressure gauge calibration device according to claim 4, characterized in that: The loading lifting frame is in a hollow ring shape, the middle space of the loading lifting frame is adapted to the shape of the tray, and the size of the middle space of the loading lifting frame is larger than the size of the tray.

7. A fully automatic pressure gauge calibration device according to claim 6, characterized in that: The feeding mechanism also includes a feeding telescopic support plate and a feeding telescopic driving member; The feeding telescopic driving member is installed on the side wall of the feeding lifting frame; The feeding telescopic support plate is connected to the feeding telescopic driving member, and can extend to the middle empty space of the feeding lifting frame or retract from the middle empty space of the feeding lifting frame under the action of the feeding telescopic driving member.

8. A fully automatic pressure gauge calibration device according to claim 7, characterized in that: The loading lifting frame also includes two guide side plates, which are arranged in parallel on both sides of the middle space; A narrow slot is formed on each guide side plate, and the corresponding feeding telescopic support plate extends to the middle empty space of the feeding lifting frame through the narrow slot, or retracts from the middle empty space of the feeding lifting frame to the narrow slot.

9. A fully automatic pressure gauge calibration device according to claim 7, characterized in that: The transmission mechanism includes: a transmission driving member and a push-pull member; The material unloading mechanism also includes a material unloading telescopic support plate; The push-pull member is connected to the transmission driving member, and under the action of the transmission driving member, the tray carried on the loading telescopic supporting plate is pushed and pulled to the unloading telescopic supporting plate of the unloading mechanism.

10. A fully automatic pressure gauge calibration device according to any one of claims 3 to 9, characterized in that: The device also includes a material cart; a plurality of pallets can be stacked on the material cart and pushed into the loading mechanism or pushed out from the unloading mechanism along with the material cart; A plurality of guide posts are arranged at intervals on each tray, and the trays are stacked in alignment with each other through the guide posts.

Images