High-precision valve intelligent testing system

Abstract

The present application relates to pressure reducing valve performance detection technical field, especially in kind of high accuracy valve intelligent test system, including frame, manipulator and detection frock, frame is equipped with detection room and storage room in, manipulator is used for clamping and placing pressure reducing valve, when detecting, the air inlet and air outlet of pressure reducing valve are communicated with external gas source through air pipe, and pressure sensor is equipped on air pipe, wherein, manipulator and detection frock are located in detection room, detection frock includes clamp assembly, adjustment assembly and fixed tray, clamp assembly is used for sealing lock and fixed tray on pressure reducing valve, adjustment assembly includes hexagonal wrench and open wrench, hexagonal wrench is inserted into the adjusting bolt on pressure reducing valve through first drive mechanism vertically, open wrench is inserted into the locking nut on pressure reducing valve through second drive mechanism, and second drive mechanism drives open wrench to rotate, so that the automatic opening and closing of pressure reducing valve is realized through adjustment assembly, the degree of automation of detection is improved, and the detection cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of pressure reducing valve performance testing technology, and in particular to a high-precision intelligent valve testing system. Background Technology

[0002] Pressure reducing valve test benches are used for performance testing of various pressure reducing valve products. The interface types of these products include pipe-mounted and plate-mounted structures, such as... Figure 1 As shown, the left side is a pipe-mounted pressure reducing valve, which includes a valve body with inlet and outlet ports on both sides. The top of the valve body has an adjusting bolt and a locking nut. The adjusting bolt controls the opening degree of the valve body's internal components to regulate the medium flow rate. The right side is a plate-mounted pressure reducing valve, which includes a valve body with an inlet and outlet port with a built-in sealing ring at the bottom. The top of the valve body has an external hexagonal adjusting bolt and a locking nut. The adjusting bolt controls the opening degree of the valve body's internal components to regulate the medium flow rate. The existing pressure reducing valve test bench is manually operated, resulting in slow setup, low automation, and unnecessary auxiliary work time.

[0003] Existing pressure reducing valve test benches mostly test only a single type of product, have high testing costs, and low automation levels, failing to meet the growing testing demands. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects and shortcomings of the existing technology. To this end, this invention provides a high-precision intelligent valve testing system that can detect different types of pressure reducing valves and automatically test the performance of pressure reducing valves to meet existing testing needs.

[0005] To achieve the above objectives, the present invention provides a high-precision intelligent valve testing system, comprising:

[0006] A frame, within which are a testing chamber and a storage chamber;

[0007] A robotic arm used to grip and place pressure-reducing valves;

[0008] The testing fixture is used to seal and clamp the pressure reducing valve and adjust the opening and closing degree of the pressure reducing valve; the air inlet and outlet of the pressure reducing valve are connected to an external air source through an air pipe, and a pressure sensor is provided on the air pipe.

[0009] The robotic arm and the testing fixture are located in the testing chamber; the testing fixture includes a clamping assembly, an adjusting assembly, and a fixed tray, the clamping assembly being used to seal and lock the pressure reducing valve on the fixed tray; the adjusting assembly includes an Allen wrench and an open-end wrench; the Allen wrench is vertically inserted into the adjusting bolt on the pressure reducing valve via a first driving mechanism; the open-end wrench is inserted into the locking nut on the pressure reducing valve via a second driving mechanism, the second driving mechanism driving the open-end wrench to rotate.

[0010] Further, the first driving mechanism comprises a support plate fixed on the frame, a pressing cylinder A is arranged on the support plate, a push rod of the pressing cylinder A is connected with a sliding seat, a sliding block A and a guide rail A matched with each other are arranged on the sliding seat, and the guide rail A is vertically fixed on the frame; a motor A is further arranged on the sliding seat, the motor A is connected with a rotating shaft through a shaft coupling, and the bottom of the rotating shaft is fixed with the inner hexagonal wrench.

[0011] Further, the second driving mechanism comprises a DD motor fixed on the frame, a rotor of the DD motor is connected with a rotating disc, an end of the rotating disc is connected with a vertical three-joint cylinder A, a push rod of the three-joint cylinder A is connected with a horizontal three-joint cylinder B, a push rod of the three-joint cylinder B is fixed with a torque sensor through a connecting plate, and the torque sensor is connected with the open-end wrench.

[0012] Further, the clamp assembly comprises a bottom plate and sliding plates located on both sides of the fixed tray, a vertical pressing cylinder B and a stand plate with a plug are arranged on the top of the sliding plate, a push rod of the pressing cylinder B is connected with a pressing plate; a sliding block B and a guide rail B matched with each other are arranged on the bottom of the sliding plate, and the guide rail B is fixed on the bottom plate; the sliding plate is moved through a push-in cylinder, and the push-in cylinder is fixed on the bottom plate; the bottom plate is fixed on the frame; and a gas passage is arranged in the plug.

[0013] Further, a positioning groove is arranged on the fixed tray, and a through hole is arranged at the bottom of the positioning groove.

[0014] Further, a positioning groove is arranged on the fixed tray, and two gas holes are arranged at the bottom of the positioning groove.

[0015] Further, the mechanical hand comprises a robot; the robot comprises a base, a rotating seat driven by a motor B is arranged on the top of the base, a rear swing arm driven by a rudder motor A is arranged on the rotating seat, a front swing arm driven by a rudder motor B is arranged on the rear swing arm, a wrist part driven by a rudder motor C is arranged on the front swing arm, a wide type air claw is connected with the wrist part through a rotating plate, and a finger plate is connected with each side of the wide type air claw, and the finger plate is used for clamping the pressure reducing valve.

[0016] Further, a control display is further arranged on the frame.

[0017] Further, the same structure of a to-be-tested trolley and a qualified product trolley are placed in the storage chamber, and material trays are stacked on the to-be-tested trolley and the qualified product trolley; the material tray comprises a disc body, and four supporting columns are arranged at the bottom of the disc body.

[0018] Furthermore, the number of the detection fixtures is two, and the two detection fixtures are arranged symmetrically with respect to the robot arm.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the pressure reducing valve to be tested can be automatically opened and closed by adjusting the components in the testing fixture to verify its performance; at the same time, air tightness can also be tested by the pressure sensor; the overall automation level of pressure reducing valve testing is improved, the labor intensity of workers is reduced, and the testing cost is lowered. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an existing pressure reducing valve;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure of the testing fixture;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure of the adjustment component;

[0024] Figure 5 for Figure 3 Schematic diagram of the middle clamp assembly;

[0025] Figure 6 for Figure 1 A schematic diagram of the ventilation system of the robotic arm;

[0026] Figure 7 A schematic diagram of the ventilation of a pipe-mounted pressure reducing valve;

[0027] Figure 8 This is a schematic diagram of the air supply of a plate-mounted pressure reducing valve.

[0028] The components include: 1. Frame; 2. Robotic arm; 3. Inspection fixture; 4. Qualified product carriage; 5. Test carriage; 6. Control display; 21. Base; 22. Rear swing arm; 23. Front swing arm; 24. Wrist; 25. Rotating plate; 26. Wide gripper; 27. Finger plate; 31. Fixture assembly; 32. Adjustment assembly; 33. Fixed pallet; 311. Base plate; 312. Push-in cylinder; 313. Slide plate; 3 14. Clamping cylinder B; 315. Pressure plate; 316. Slider B; 317. Guide rail B; 318. Vertical plate; 321. Support plate; 322. Clamping cylinder A; 323. Sliding seat; 324. Rotating shaft; 325. DD motor; 326. Turntable; 327. Three-bar cylinder A; 328. Three-bar cylinder B; 329. Open-end wrench; 331. Positioning groove; 332. Through hole; 333. Air hole. Detailed Implementation

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. Embodiments

[0031] Please refer to Figures 1 to 8 The present application provides a high-precision valve intelligent testing system, which comprises a frame 1, a manipulator 2 and a detection tool 3; the frame 1 is provided with a detection chamber and a storage chamber; the manipulator 2 is used for clamping and placing a pressure reducing valve; the detection tool 3 is used for sealing and clamping the pressure reducing valve and adjusting the opening degree of the pressure reducing valve; during detection, the gas inlet and outlet of the pressure reducing valve are communicated with an external gas source through a gas pipe, and a pressure sensor is arranged on the gas pipe.

[0032] Among them, the manipulator 2 and the detection tool 3 are located in the detection chamber; the detection tool 3 comprises a clamp assembly 31, an adjusting assembly 32 and a fixed tray 33, the clamp assembly 31 is used for sealing and locking the pressure reducing valve on the fixed tray 33; the adjusting assembly 32 comprises an internal hex wrench and an open wrench 329; the internal hex wrench is vertically inserted into the adjusting bolt on the pressure reducing valve through a first driving mechanism; the open wrench 329 is inserted into the locking nut on the pressure reducing valve through a second driving mechanism, and the second driving mechanism drives the open wrench 329 to rotate.

[0033] Preferably, the fixed tray 33 is provided with a positioning groove 331, and the bottom of the positioning groove 331 is provided with a through hole 332.

[0034] Preferably, the fixed tray 33 is provided with a positioning groove 331, and the bottom of the positioning groove 331 is provided with two air holes 333.

[0035] When detecting the pressure reducing valve with a tubular structure and a plate structure, only the fixed tray 33 needs to be replaced.

[0036] Preferably, the mechanical arm 2 comprises a robot; the robot herein can use Yaskawa GP7 robot to carry out the carrying operation of the pressure reducing valve, and the website is http: / / www.molfa-robot.com / products / ; the robot comprises a base 21, the top of the base 21 is provided with a rotating seat driven by a motor B, the rotating seat is provided with a rear swing arm 22 driven by a rudder A, the rear swing arm 22 is provided with a front swing arm 23 driven by a rudder B, the front swing arm 23 is provided with a wrist part 24 driven by a rudder C, the wrist part 24 is connected with a wide type air claw 26 through a rotating plate 25, and the wide type air claw 26 is connected with a finger plate 27 on both sides respectively, and the finger plate 27 is used for clamping the pressure reducing valve.

[0037] The wide type air claw 26 herein can use SMC wide type claw to take and place the valve body, and details are not described herein again.

[0038] Preferably, the storage chamber is provided with a to-be-tested trolley 5 and a qualified trolley 4 with the same structure, and the to-be-tested trolley 5 and the qualified trolley 4 are both stacked with material trays, and the material tray comprises a tray body, and the bottom of the tray body is provided with four supporting columns.

[0039] Preferably, the frame 1 is further provided with a control display 6, and the control display 6 is used for displaying measurement parameters and an operation interface.

[0040] As an embodiment of the present application, the first driving mechanism comprises a supporting plate 321 fixed on the frame 1, the supporting plate 321 is provided with a pressing cylinder A 322, the pressing cylinder A 322 is connected with a sliding seat 323 through a push rod, the sliding seat 323 is provided with a matching sliding block A and a guide rail A, and the guide rail A is vertically fixed on the frame 1; the sliding seat 323 is further provided with a motor A, the motor A is connected with a rotating shaft 324 through a shaft coupling, and the bottom of the rotating shaft 324 is fixed with an internal hex wrench.

[0041] As an embodiment of the present application, the second driving mechanism comprises a DD motor 325 fixed on the frame 1, a rotating disc 326 connected with a rotor on the DD motor 325, a vertical three-joint cylinder A 327 connected with an end of the rotating disc 326, a horizontal three-joint cylinder B 328 connected with a push rod of the three-joint cylinder A 327, a torque sensor fixed on the push rod of the three-joint cylinder B 328 through a connecting plate, and an open-end wrench 329 connected with the torque sensor.

[0042] The "DD" in the DD motor 325 herein is the abbreviation of direct driver, which comprises a torque motor and a linear motor, and is a procurement component of prior art, and the upper silver DMN series DD motor of Dongguan Baijia Intelligent Technology Co., Ltd. can be selected, and the website is http: / / www.linearmotor.net.cn / products / index-48.html, and details are not described herein again.

[0043] As an embodiment of the present application, the clamp assembly 31 comprises a bottom plate 311 and slide plates 313 located on both sides of the fixed tray 33, the top of the slide plate 313 is provided with a vertical plate 318 with a plug and a vertical pressing cylinder B 314, the push rod of the pressing cylinder B 314 is connected with a pressing plate 315; the bottom of the slide plate 313 is provided with a matched slide block B 316 and a guide rail B 317, the guide rail B 317 is fixed on the bottom plate 311; the slide plate 313 is moved by the push-in cylinder 312, the push-in cylinder 312 is fixed on the bottom plate 311; the bottom plate 311 is fixed on the frame 1; the plug is provided with a gas passage.

[0044] As an embodiment of the present application, the number of detection tools 3 is two, and the two detection tools 3 are symmetrically arranged relative to the mechanical hand 2, so as to satisfy the detection of two pressure reducing valves and improve the detection efficiency.

[0045] The working process of the present application: the pressure reducing valve is placed in the corresponding material tray, the material tray is placed on the to-be-tested trolley 5, the to-be-tested trolley 5 and the qualified product trolley 4 are pushed into the storage chamber, the mechanical hand 2 carries the pressure reducing valve in the to-be-tested trolley 5 to the fixed tray 33, the slide plate 313 moves under the pushing of the push-in cylinder 312, and the plug seals the air inlet and air outlet of the tubular structure pressure reducing valve and clamps it; for the plate-shaped structure pressure reducing valve, the plug is clamped; then, the pressing plate 315 is vertically moved downward under the driving of the cylinder B 314, and the pressure reducing valve is pressed.

[0046] At this time, under the pushing action of the three-bar cylinder A 327 and the three-bar cylinder B, the open wrench 329 is inserted into the locking nut of the pressure reducing valve, then the pressing cylinder A 322 pushes the sliding seat 323 to move downward, the shaft 324 passes through the hollow hole of the DD motor 325 and the rotating disc 326 in turn, and the internal hex wrench on the shaft 324 is inserted into the adjusting bolt of the pressure reducing valve. Then, the DD motor 325 drives the rotating disc 326 to rotate, the rotating disc 326 drives the three-bar cylinder A 327 and the three-bar cylinder B to rotate, the three-bar cylinder B drives the open wrench 329 to rotate, and the open wrench 329 can adjust the tightness of the locking nut. When the locking nut is locked, the DD motor 325 stops rotating when the torque sensor detects that the predetermined value is reached. The pressure sensor is used to detect the pressure change of the air outlet and air inlet of the pressure reducing valve and the pressure change of the pressure reducing valve at different opening degrees, so as to automatically detect the air tightness and performance of the pressure reducing valve. The qualified pressure reducing valve is placed on the qualified product trolley 5 by the mechanical hand 2, and the unqualified pressure reducing valve is placed on the platform in the frame 1, and finally, the workers take away the unqualified products and the material carrying of the to-be-tested trolley 5 and the qualified product trolley 4.

[0047] The automatic opening and closing of the pressure reducing valve is realized by adjusting the assembly 32, the automation degree of detection is improved, and the detection cost is reduced.

[0048] The application can be summarized in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the above-described embodiments of the application can be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than the description preceding them, and all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A high-precision valve intelligent testing system, characterized in that, The utility model relates to a kind of pressure reducing valve detection device, including: Frame (1), which is provided with a detection chamber and a storage chamber inside; Mechanical hand (2) for clamping and placing pressure reducing valve; And Detection tooling (3) for sealing clamping pressure reducing valve and adjusting the opening and closing degree of pressure reducing valve;The gas inlet and outlet of the pressure reducing valve are communicated with external gas source through air pipe, and pressure sensor is arranged on the air pipe; The mechanical hand (2) and detection tooling (3) are located in the detection chamber;The detection tooling (3) includes clamp assembly (31), adjusting assembly (32) and fixed tray (33), the clamp assembly (31) is used for sealing locking the pressure reducing valve on the fixed tray (33);The adjusting assembly (32) includes hexagonal wrench and open wrench (329);The hexagonal wrench is vertically inserted into adjusting bolt on pressure reducing valve by first driving mechanism;The open wrench (329) is inserted into locking nut on pressure reducing valve by second driving mechanism, and the second driving mechanism drives the open wrench (329) to rotate, The first driving mechanism includes support plate (321) fixed on the frame (1), the support plate (321) is provided with pressing cylinder A (322), the push rod of the pressing cylinder A (322) is connected with sliding seat (323), the sliding seat (323) is provided with matched sliding block A and guide rail A, and the guide rail A is vertically fixed on the frame (1);The sliding seat (323) is also provided with motor A, the motor A is connected with rotating shaft (324) through coupling, and the bottom of the rotating shaft (324) fixes the hexagonal wrench, The second driving mechanism includes DD motor (325) fixed on the frame (1), the rotor of the DD motor (325) is connected with rotating disc (326), the end of the rotating disc (326) is connected with vertical three-bar cylinder A (327), the push rod of the three-bar cylinder A (327) is connected with horizontal three-bar cylinder B (328), the push rod of the three-bar cylinder B (328) is fixed with torque sensor through connecting plate, and the torque sensor is connected with the open wrench (329), The clamp assembly (31) includes bottom plate (311) and sliding plate (313) located on both sides of the fixed tray (33), the top of the sliding plate (313) is provided with vertical pressing cylinder B (314) and stand plate (318) with plug, and the push rod of the pressing cylinder B (314) is connected with pressing plate (315);The bottom of the sliding plate (313) is provided with matched sliding block B (316) and guide rail B (317), and the guide rail B (317) is fixed on the bottom plate (311);The sliding plate (313) moves through push-in cylinder (312), and the push-in cylinder (312) is fixed on the bottom plate (311);The bottom plate (311) is fixed on the frame (1);Gas passage is arranged in the plug.

2. The high precision valve intelligent testing system according to claim 1, characterized in that, The fixed tray (33) is provided with positioning groove (331), and the bottom of the positioning groove (331) is provided with through hole (332).

3. The high precision valve intelligence testing system according to claim 1, wherein, The fixing tray (33) is provided with a positioning groove (331), and the bottom of the positioning groove (331) is provided with two air holes (333).

4. The high precision valve intelligence testing system of claim 1, wherein, The mechanical arm (2) comprises a robot; the robot comprises a base (21), the top of the base (21) is provided with a rotating seat driven by a motor B, the rotating seat is provided with a rear swing arm (22) driven by a rudder A, the rear swing arm (22) is provided with a front swing arm (23) driven by a rudder B, the front swing arm (23) is provided with a wrist part (24) driven by a rudder C, the wrist part (24) is connected with a wide type air claw (26) through a rotating plate (25), the wide type air claw (26) is connected with a finger plate (27) on both sides respectively, and the finger plate (27) is used for clamping the pressure reducing valve.

5. The high precision valve intelligence testing system of claim 1, wherein, The frame (1) is further provided with a control display (6).

6. The high precision valve intelligence testing system of claim 1, wherein, The storage chamber is placed with a to-be-tested trolley (5) and a qualified trolley (4) with the same structure, the to-be-tested trolley (5) and the qualified trolley (4) are stacked with material trays, and the material tray comprises a disc body, and the disc body is provided with four supporting columns.

7. The high precision valve intelligence testing system according to any one of claims 1 to 6, characterized in that, The number of the detection tooling (3) is two, and the two detection toolings (3) are symmetrically arranged relative to the mechanical arm (2).

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