CN214538356U

CN214538356U - Calibration system of mechanical pressure gauge

Info

Publication number: CN214538356U
Application number: CN202120536191.9U
Authority: CN
Inventors: 吴义; 郭靖; 陈泽芸; 钱志刚; 范长湘; 武龙飞
Original assignee: Jinyi Measurement Technology Suzhou Co ltd
Current assignee: Jinyi Measurement Technology Suzhou Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-29
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to an instrument examination and calibration technical field, concretely relates to mechanical type manometer's verification system, including host computer, arm, pressure generating device and image acquisition device, the host computer respectively with arm, pressure generating device and image acquisition device communication connection still include: the transmission device is used for assembling the pressure gauge; the vibration device is provided with an interface, and the interface is used for assembling the pressure gauge; wherein, vibrating device with transmission all with host computer communication connection, through transmission device assembly manometer and transmit the manometer, utilize vibrating device vibration manometer in order to replace the manual operation of tapping to improve the examination efficiency of manometer.

Description

Calibration system of mechanical pressure gauge

Technical Field

The utility model relates to an instrument examination and check-up field, concretely relates to verification system of mechanical type manometer.

Background

The pressure gauge is widely applied to various industries, such as a braking system of a motor train unit, a heat pipe network, oil and gas transmission, boiler equipment, safety protection, a water and gas supply system and the like. In order to ensure the accuracy of the pressure gauge, the pressure gauge needs to be calibrated every verification period.

A related product on the market at present is a ConST700A verification pointer pressure gauge platform, a ZT5610 pressure calibrator. The ConST700A verifies that the pointer pressure gauge platform needs to be manually loaded and unloaded, and the automation degree is not high; the ZT5610 pressure calibrator needs to be manually loaded, the pressure gauge is unloaded, and the pressure gauge needs to be tapped manually to complete tapping operation. The existing product can not realize the full-automatic pressure gauge calibration, and the calibration efficiency is low when the pressure gauge needs to be calibrated in a large batch.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving at least one of the manometer examination inefficiency scheduling problem that exists among prior art or the correlation technique at least.

In view of this, the utility model provides a verification system of mechanical type manometer, including host computer, arm, pressure generating device and image acquisition device, the host computer respectively with arm, pressure generating device and image acquisition device communication connection, a serial communication port, include: the transmission device is used for assembling the pressure gauge; the vibration device is provided with an interface, and the interface is used for assembling the pressure gauge; the vibration device and the transmission device are in communication connection with the upper computer.

Further, the transmission device is a double-chain transmission device, the double-chain transmission device is provided with a clamping seat, the clamping seat is used for assembling a pressure gauge, and the clamping seat is connected with an upper chain and a lower chain of the double-chain transmission device.

Further, the transmission device is a belt transmission device, the belt transmission device is provided with a clamping seat, and the clamping seat is connected with a synchronous belt of the belt transmission device.

Further, the clamping seat is provided with an assembling hole, and the assembling hole is in a shape with a large upper space and a small lower space.

Further, the vibrating device comprises a cam, a driven piece and an elastic piece, wherein the cam is used for driving the driven piece, the elastic piece is used for keeping the driven piece in contact with the cam, and the driven piece is provided with the interface.

Furthermore, the pressure generating device is provided with a working medium outlet, and the working medium outlet is connected with a standard pressure gauge.

Furthermore, the pressure generating device comprises a Y-shaped interface, wherein a first end of the Y-shaped interface is communicated with the working medium outlet, a second end of the Y-shaped interface is communicated with the standard pressure gauge, and a third end of the Y-shaped interface is communicated with the interface of the vibrating device.

Furthermore, the tail end of the mechanical arm is provided with a first clamping part, a second clamping part and a motor, and the motor drives the first clamping part and the second clamping part to be close to or far away from each other.

Further, the image acquisition device includes lead screw, first pole and second pole, wherein, first pole one end forms the nut, and the cover is located on the lead screw, the first pole other end with second pole one end is rotated and is connected, the other end of second pole is provided with the camera, the camera with host computer communication connects.

Furthermore, the camera is a camera with an image recognition function.

The utility model has the advantages that: the pressure gauge is assembled through the transmission mechanism to be transmitted, and the vibration device is utilized to vibrate the pressure gauge to replace manual tapping operation, so that the verification efficiency of the pressure gauge is improved.

Drawings

Fig. 1 shows a schematic structural diagram of a verification system for a mechanical pressure gauge according to an embodiment of the present invention;

fig. 2 shows an exploded view of a chain drive of a verification system for a mechanical pressure gauge according to an embodiment of the present invention;

figure 3 shows a schematic cross-sectional view of a cartridge according to an embodiment of the invention;

FIG. 4 is a schematic view showing the structure of a mechanical pressure gauge;

fig. 5 shows a schematic structural diagram of a vibrating device of a verification system of a mechanical pressure gauge according to an embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a vibration device and a pressure generating device of a calibration system of a mechanical pressure gauge according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an image capturing device of a calibration system for a mechanical pressure gauge according to an embodiment of the present invention;

fig. 8 shows a schematic structural view of a terminal of a robotic arm of a verification system for a mechanical pressure gauge according to an embodiment of the invention;

fig. 9 is a schematic structural diagram of a vibration device and a pressure generating device of a calibration system of a mechanical pressure gauge according to an embodiment of the present invention;

fig. 10 shows an assembly schematic of a vibrating device of a verification system for a mechanical pressure gauge according to an embodiment of the present invention;

the correspondence between reference numerals and component names in fig. 1 to 10 is shown in the following table:

reference numerals	Name of component	Reference numerals	Name of component
				1	Upper computer	5	Transmission device
2	Mechanical arm	51	Through hole
				21	A first clamping part	52	Pin shaft
22	Second clamping part	502	Assembly hole
				201	Gear rack mechanism	6	Vibration device
202	Gear wheel	61	Cam wheel
				3	Pressure generating device	62	Driven member
31	Y-shaped interface	63	Interface
				303	Third terminal	64	Elastic piece
4	Image acquisition device	601	Dial plate
				41	First rod	602	Joint
42	Second rod	101	Standard pressure gauge
				43	Screw mandrel	102	Pressure gauge
44	Camera head

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments of the present invention are described below with reference to fig. 1 to 10.

As shown in fig. 1, the utility model provides a verification system of mechanical type manometer, include: the device comprises an upper computer 1, a mechanical arm 2, a pressure generating device 3 and an image acquisition device 4, wherein the upper computer 1 is respectively in communication connection with the mechanical arm 2, the pressure generating device 3 and the image acquisition device 4, and a transmission device 5 is used for assembling a pressure gauge; the vibrating device 6 is provided with a connector 63, and the connector 63 is used for assembling a pressure gauge; wherein, vibrating device 6 and transmission 5 all with host computer 1 communication connection.

In this embodiment, the upper computer 1, the mechanical arm 2, the pressure generating device 3, and the image collecting device 4 all belong to existing equipment, the upper computer 1 may be a computer with a data processing function, the pressure generating device 3 may be a pressure pump, and the photographing device may be a camera, or a mobile terminal with a photographing function, such as a mobile phone, a tablet, and the like; the mechanical arm 2 can be a SCARA mechanical arm, and a clamp is arranged at the tail end of the mechanical arm to clamp the pressure gauge.

During verification, the upper computer 1 sends an assembly instruction to the transmission device 5 and the mechanical arm 2, the transmission device 5 transmits the pressure gauge to a position which is convenient for the mechanical arm 2 to clamp, the mechanical arm 2 takes the pressure gauge down from the transmission device 5 and assembles the pressure gauge on the vibrating device 6, and after assembly, a joint of the pressure gauge is communicated with the pressure generating device 3; the upper computer 1 sends a verification instruction to the image acquisition device 4 and the pressure generation device 3, the image acquisition device 4 is used for number indication identification of the pressure gauge and the standard pressure gauge, the pressure generation device 3 applies pressure to the pressure gauge and the standard pressure gauge, when the pressure value reaches the verification value, the upper computer 1 sends a vibration instruction to the vibration device 6, and the vibration device 6 vibrates to drive the pressure gauge to vibrate; the upper computer 1 analyzes the readings of the pressure gauge before and after vibration and the readings of the pressure gauge and the standard pressure gauge according to the pressure gauge calibration rule to generate a calibration report. In view of the above, this embodiment has realized the examination to the manometer, has improved the examination efficiency of manometer.

In this embodiment, transmission 5 is equipped with the manometer to transmit the manometer to the position that arm 2 can work, replace the operation that the manual work tapped with the vibration again, improved the utility model discloses the efficiency of examination.

In the above embodiment, as shown in fig. 2 and 3, the transmission device 5 may be a double chain transmission device, and the double chain transmission device is provided with a clamping seat for assembling the pressure gauge, and the clamping seat is connected with the upper chain and the lower chain of the double chain transmission device. Through holes 51 can be arranged at the upper part and the lower part of the clamping seat, and the through holes 51 are in interference fit with the pin shafts 52 on the chain to realize connection.

In this embodiment, the cassette meets with upper and lower chain simultaneously, and stability when having improved the manometer assembly also makes the transmission course of manometer steady relatively, is favorable to arm 2 to snatch the manometer and carries out subsequent examination flow.

In the above embodiment, the transmission device 5 may be a belt transmission device, and the belt transmission device is provided with a clamping seat, and the clamping seat is connected with a synchronous belt of the belt transmission device.

It can be understood that the belt transmission device, especially the synchronous belt transmission device has the characteristic of stable transmission, the characteristic is fully utilized, the clamping seat is connected with the synchronous belt in a bonding way, a rivet connection way and other ways, and the limitation is not made here, so that the stability of the pressure gauge in the transmission process is improved, and the follow-up verification process is facilitated.

In the above embodiment, as shown in fig. 3, the cartridge is provided with the fitting hole 502, and the fitting hole 502 has a shape in which the upper space is large and the lower space is small.

Specifically, the clamping seat is provided with an assembling hole 502, so that the stability of the instrument to be conveyed on an assembling structure is realized. Taking a mechanical pressure gauge as an example, as shown in fig. 4, the mechanical pressure gauge generally includes a dial 601 and a connector 602, and the mechanical pressure gauge generally relies on the connector 602 to detect pressure, so that the dial 601 should be grasped to perform a subsequent verification process when the pressure gauge is conveyed. The cassette sets up pilot hole 502, is favorable to mechanical type manometer's joint 602 to stretch into pilot hole 502, and dial plate 601 supplies the usefulness of snatching, simultaneously, because the focus of manometer is close to joint 602, when the manometer loads on pilot hole 502, its focus also is close to pilot hole 502 to mechanical type manometer's stability has been improved, with the shake that takes place in resisting the transmission course. As shown in fig. 4, the joint 602 of a part of the mechanical pressure gauge is in a shape that a part close to the dial 601 is large and a part far from the dial 601 is small, and the fitting hole 502 attached to the joint 602 of the mechanical pressure gauge is provided, so that the fitting hole 502 has a shape that an upper space is large and a lower space is small, and the fitting hole 502 in the shape allows the joint 602 of the pressure gauge to enter the fitting hole 502 as completely as possible, thereby improving the stability of the mechanical pressure gauge fitted on the fitting hole 502.

In the above embodiment, as shown in fig. 5, 9 and 10, the vibrating device 4 includes the cam 61, the follower 62, and the elastic member 64, the cam 61 is used to drive the follower 62, the elastic member 64 is used to maintain the contact of the follower 62 with the cam 61, and the follower 62 is provided with the interface 63.

Specifically, the pressure gauge is assembled on the driven part 62 through the interface 63, and the driven part 62 is driven to reciprocate through the rotation of the cam 61, so that the internal structure of the pressure gauge moves to a certain degree relatively under the action of inertia, a larger static friction force is replaced by a smaller dynamic friction force, and the condition that the number of the pressure gauge is inaccurate due to the mechanical friction and the mechanical resistance of internal parts of the pressure gauge is avoided. Optionally, a through hole is formed in the follower 62, and the cam 61 is placed in the through hole, so that the cam 61 rotates to contact with the side wall of the through hole to drive the follower 62 to reciprocate. In one embodiment, the follower 62 is a platform, the elastic member 64 includes a connecting shaft and a spring, the connecting shaft connects two opposite sides of the platform, the spring is sleeved on the shaft, the extending direction of the spring is the same as the direction of the platform moving under the driving of the cam 61, the follower 62 repeatedly compresses and returns the spring when the cam 61 rotates, the spring generates a corresponding reaction force to press the follower 62 on the cam 61, so as to maintain the contact between the follower 62 and the cam 61, so that the follower 62 performs a reciprocating motion, and the effect of vibrating the pressure gauge 102 is achieved. In one embodiment, the cam 61 may be drivingly connected to the output shaft of the motor for rotation.

In the above embodiment, as shown in fig. 6, the pressure generating device 3 is provided with a working medium outlet, which is connected to a standard pressure gauge 101.

It can be understood that the standard pressure gauge 101 can provide a reference for the pressure value applied to the pressure gauge 102, and since the calibration process requires relatively high-precision components, the pressure value indicating device of the pressure source cannot be used as a reference for the pressure value applied to the pressure gauge. The standard pressure gauge 101 is arranged, and the standard pressure gauge 101 and the pressure gauge 102 use the same pressure generating device 3, so that the pressure borne by the standard pressure gauge 101 and the pressure borne by the pressure generating device can be the same, and the pressure value can better accord with the real situation.

In the above embodiment, the pressure generating device 3 includes the Y-shaped interface 31, a first end of the Y-shaped interface 31 is communicated with the working medium outlet, a second end is communicated with the standard pressure gauge 101, and a third end 303 is communicated with the interface 63 of the vibrating device 6.

In this embodiment, a measure is provided to make the pressure of the standard pressure gauge 101 and the pressure gauge 102 the same, that is, the standard pressure gauge 101, the pressure gauge 102 and the working medium outlet of the pressure generating device 3 are connected to each other through a Y-shaped pipe, and since the pressure sources are the same, the pressure applied to the standard pressure gauge 101 and the pressure applied to the pressure generating device are the same, and the indication value of the standard pressure gauge 101 is referred.

In the above embodiment, as shown in fig. 8, the end of the mechanical arm 2 is provided with the first clamping portion 21, the second clamping portion 22 and the motor, and the motor drives the first clamping portion 21 and the second clamping portion 22 to approach or move away from each other.

Illustratively, the first clamping part 21 and the second clamping part 22 are in transmission connection with the motor through a plurality of gears 202 and a rack-and-pinion mechanism 201, and the number of the gears 202 of the first clamping part 21 is one more than that of the gears 202 of the second clamping part 22, so that the transmission directions of the two parts are opposite, and when the motor is started, the moving directions of the two parts are opposite, so that the two parts are close to or far away from each other. The measure of driving the first clamping portion 21 and the second clamping portion 22 to move close to or away from each other by the motor via the transmission of the gear 202 and the rack-and-pinion mechanism 201 is merely an example, and is not limited. Optionally, the

gears

202 and 202 may be driven by a synchronous belt structure.

In the above embodiment, as shown in fig. 7, the image capturing device 4 includes a screw rod 43, a first rod 41 and a second rod 42, wherein a nut is formed at one end of the first rod 41 and is sleeved on the screw rod 43, the other end of the first rod 41 is rotatably connected with one end of the second rod 42, a camera 44 is arranged at the other end of the second rod 42, and the camera 44 is in communication connection with the upper computer 1.

In this embodiment, the first rod 41 is sleeved on the screw rod 43 through the nut end, so that the first rod 41 can move along the length direction of the screw rod 43, one end of the second rod 42 is rotatably connected with the other end of the first rod 41, and the other end of the second rod 42 can rotate around one end of the second rod 42, so that the camera 44 can move in any direction in space, which is beneficial to focusing on the pressure gauge 102 and the standard pressure gauge 101 under the instruction of the upper computer 1 by the camera 44 arranged at the other end of the second rod 42, thereby improving the calibration efficiency of the pressure gauge. Optionally, the camera 44 may be a camera 44 with an image recognition function, so that the upper computer 1 with the image recognition function is not required, and the pressure gauge verification system based on the image recognition technology can be assembled.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a verification system of mechanical type manometer, includes host computer, arm, pressure generating device and image acquisition device, the host computer respectively with arm, pressure generating device and image acquisition device communication connection, its characterized in that, verification system still includes:

the transmission device is used for assembling the pressure gauge;

the vibration device is provided with an interface, and the interface is used for assembling the pressure gauge;

the vibration device and the transmission device are in communication connection with the upper computer.

2. The system for calibrating a mechanical pressure gauge according to claim 1, wherein the transmission device is a double-chain transmission device, the double-chain transmission device is provided with a clamping seat, the clamping seat is used for assembling the pressure gauge, and the clamping seat is connected with an upper chain and a lower chain of the double-chain transmission device.

3. The calibrating system for mechanical pressure gauge according to claim 1, wherein the transmission device is a belt transmission device, the belt transmission device is provided with a clamping seat, and the clamping seat is connected with a synchronous belt of the belt transmission device.

4. The calibrating system for a mechanical pressure gauge according to claim 2 or 3, wherein the clamping seat is provided with a fitting hole, and the fitting hole has a shape with a large upper space and a small lower space.

5. The calibrating system for a mechanical pressure gauge according to claim 1, wherein said vibrating means comprises a cam for driving said follower, a follower, and a resilient member for maintaining contact between said follower and said cam, said follower being provided with said interface.

6. A verification system for mechanical pressure gauge according to claim 1, wherein said pressure generating device is provided with a working medium outlet, said working medium outlet is connected to a standard pressure gauge.

7. A verification system for a mechanical pressure gauge according to claim 6, wherein said pressure generating device comprises a Y-shaped interface, a first end of said Y-shaped interface is connected to said working medium outlet, a second end is connected to said standard pressure gauge, and a third end is connected to said interface of said vibration device.

8. The calibrating system for the mechanical pressure gauge according to claim 6, wherein the end of the mechanical arm is provided with a first clamping portion, a second clamping portion and a motor, and the motor drives the first clamping portion and the second clamping portion to approach or separate from each other.

9. The calibrating system for the mechanical pressure gauge according to claim 1, wherein the image collecting device comprises a screw rod, a first rod and a second rod, wherein a nut is formed at one end of the first rod and sleeved on the screw rod, the other end of the first rod is rotatably connected with one end of the second rod, a camera is arranged at the other end of the second rod, and the camera is in communication connection with the upper computer.

10. The system for calibrating a mechanical pressure gauge according to claim 9, wherein the camera is a camera with image recognition function.