Sealing performance detection device for valve body production

Abstract

The utility model belongs to the technical field of valve body sealing performance detection, particularly relates to a sealing performance detection device for valve body production, and provides the following scheme aiming at the problems of complicated detection head switching, lack of an accurate model identification system and unstable air pressure control in the background technology: the sealing performance detection device comprises a servo motor, a main shaft is fixedly connected to an output shaft of the servo motor through a coupler, a rotating table is welded to the outer wall of the top of the main shaft, valve body positioning pieces distributed at equal intervals are arranged on the outer wall of the top of the rotating table, and a detection table is arranged on one side of the rotating table. According to the utility model, the servo motor drives the rotating table and cooperates with the PLC electric control cabinet to realize automatic circulation and detection of the valve body, the detection efficiency can be effectively improved, the transverse and vertical visual detectors work cooperatively, the size of the valve body can be automatically identified and fed back to the PLC, manual input errors are avoided, and the detection efficiency is improved. And the three-head conversion piece is equipped with three sealing detection heads with different sizes, so that the three-head conversion piece can adapt to valve bodies with various specifications, and the switching time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve body leakproofness detection technical field especially relates to a leakproofness detection device for valve body production. BACKGROUND

[0002] In the valve body production process, leakproofness detection is the key link of ensuring product quality. The traditional leakproofness detection method depends on manual operation, for example, manual pressurization, immersion observation or simple air pressure detection equipment. These methods have the following significant defects:

[0003] 1. Low efficiency: manual detection takes a long time, which cannot meet the mass production demand;

[0004] 2. Insufficient accuracy: manual judgment is easily affected by subjective factors, with high omission and misjudgment rates;

[0005] 3. Poor adaptability: traditional equipment can usually only detect a single type of valve body, and frequent adjustment is required when replacing the detection head, which is complicated to operate;

[0006] 4. Low degree of automation: lack of intelligent control, and detection data is difficult to record and analyze in real time.

[0007] In the prior art, although some automatic detection equipment can improve efficiency, the following problems still exist:

[0008] The detection head switching is complex and cannot quickly match different specifications of valve bodies;

[0009] There is a lack of a precise model identification system, and manual input of parameters is required;

[0010] The air pressure control is unstable, resulting in fluctuation of the detection results.

[0011] Therefore, there is an urgent need for an efficient, accurate and multifunctional automatic leakproofness detection device to solve the above problems. UTILITY MODEL CONTENTS

[0012] In view of the deficiencies of the prior art, the utility model provides a leakproofness detection device for valve body production, which overcomes the deficiencies of the prior art and effectively solves the problems of complex detection head switching, lack of a precise model identification system and unstable air pressure control.

[0013] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0014] A leakproofness detection device for valve body production, comprising a servo motor, a main shaft is fixedly connected to the output shaft of the servo motor through a shaft coupling, and a rotating table is welded to the top outer wall of the main shaft, a plurality of valve body positioning members are arranged at equal distances on the top outer wall of the rotating table, and a detection table is arranged on one side of the rotating table.

[0015] The outer wall of the top of the detection table is provided with a model identification member and a mounting rack at both ends, respectively, the inner wall of the mounting rack is fixedly connected with symmetrical cylinders through screws, the piston rod of the cylinder is fixedly connected with a stepping motor, and the output shaft of the stepping motor is provided with a three-head conversion member.

[0016] Preferably, the valve body positioning member is fixedly connected with a fixed seat on the outer wall of the top of the rotating table through screws, a positioning groove is arranged on one side of the top of the fixed seat, and a valve body is placed on the inner wall of the fixed seat, and the air inlet on one side of the valve body abuts against the inner wall of the positioning groove.

[0017] Preferably, the model identification member comprises a connecting rack welded on the outer wall of the top of the detection table, a horizontal visual detection instrument and a vertical visual detection instrument mounted on the inner wall and the top inner wall of the connecting rack, respectively.

[0018] Preferably, the three-head conversion member comprises a gas distribution seat and arrayed sealing detection heads with electromagnetic valves, wherein the sizes of the sealing detection heads are different.

[0019] Preferably, a fixed pipe is fixedly welded on one side of the outer wall of the gas distribution seat, a pressure gauge is mounted on the outer wall of the fixed pipe, and a gas pipe is fixedly connected with one end of the outer wall of the pressure gauge through a flange.

[0020] Preferably, a PLC electric control cabinet is placed on the outer wall of the top of the detection table, and the PLC electric control cabinet is connected with the horizontal visual detection instrument, the vertical visual detection instrument, the cylinder, the stepping motor, the sealing detection head and the pressure gauge through signal lines.

[0021] The valve body production sealing detection device has the advantages that:

[0022] 1. The valve body production sealing detection device can realize automatic circulation and detection of the valve body through the servo motor driving rotating table and the cooperation of the PLC electric control cabinet, effectively improves the detection efficiency, and automatically identifies the valve body model and feeds back to the PLC through the cooperation of the horizontal and vertical visual detection instruments, thereby avoiding manual input errors.

[0023] 2. The valve body production sealing detection device is provided with three sealing detection heads of different sizes, can adapt to valve bodies of various specifications, reduces switching time, and realizes real-time monitoring of gas pressure changes through the gas distribution seat and the pressure gauge, improves detection accuracy through the combination of the electromagnetic valve control, and realizes linkage of the cylinder and the stepping motor, accurately adjusts the position of the detection head, ensures sealing butt joint, and reduces the risk of leakage. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the valve body production sealing detection device.

[0025] Figure 2 A valve body positioning member structure schematic view of a sealing property detection device for valve body production is provided for the utility model.

[0026] Figure 3 A model identification member structure schematic view of a sealing property detection device for valve body production is provided for the utility model.

[0027] Figure 4 An installation frame connecting structure schematic view of a sealing property detection device for valve body production is provided for the utility model.

[0028] Figure 5 A three-head conversion member connecting structure schematic view of a sealing property detection device for valve body production is provided for the utility model.

[0029] In the figure: 1, servo motor; 2, main shaft; 3, rotary table; 4, valve body positioning member; 41, fixed seat; 42, positioning groove; 5, detection table; 6, model identification member; 61, connecting frame; 62, horizontal visual detector; 63, vertical visual detector; 7, installation frame; 8, air cylinder; 9, stepper motor; 10, three-head conversion member; 11, gas distribution seat; 12, sealing detection head; 13, fixed tube; 14, air pressure gauge; 15, air pipe; 16, valve body; 17, PLC electric control cabinet. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0031] Embodiment one, refer to Figure 1 A sealing property detection device for valve body production, including servo motor 1, servo motor 1's output shaft is fixedly connected with main shaft 2 through coupling, and the top outer wall of main shaft 2 is welded with rotary table 3, and the top outer wall of rotary table 3 is provided with equidistantly distributed valve body positioning member 4, and one side of rotary table 3 is provided with detection table 5.

[0032] In the embodiment, servo motor 1 drives rotary table 3, and valve body automatic circulation and detection are realized by cooperating with PLC electric control cabinet 17, which can effectively improve the efficiency of detection, and horizontal and vertical visual detector 63 work cooperatively, which can automatically identify valve body model and feedback to PLC, avoiding manual input error.

[0033] Embodiment two, refer to Figure 1 , Figures 4-5The utility model provides a kind of leak detection device for valve body production, and the top outer wall of detection table 5 is respectively provided with model identification piece 6 and mounting frame 7 in both ends, symmetrically distributed air cylinder 8 is fixedly connected on the inner wall of mounting frame 7 by screw, and stepper motor 9 is fixedly connected on the piston rod of air cylinder 8, and three-head conversion piece 10 is installed on the output shaft of stepper motor 9.

[0034] In the embodiment, three-head conversion piece 10 is equipped with three different sizes of sealing detection head 12, which can adapt to various specifications of valve body, reduce switching time, and gas seat 11 and pressure gauge 14 monitor the change of gas pressure in real time, combined with electromagnetic valve control, improve the detection accuracy, in addition, cylinder 8 and stepper motor 9 linkage, accurate adjustment detection head position, ensure sealing butt joint, reduce the risk of leakage.

[0035] Refer to Figure 2 Valve positioning member 4 is fixedly connected on the top outer wall of rotating table 3 by screw, positioning groove 42 is arranged on the top side of fixed seat 41, valve body 16 is placed on the inner wall of fixed seat 41, and the air inlet of one side of valve body 16 is close to the inner wall of positioning groove 42.

[0036] Refer to Figure 3 Model identification piece 6 includes connecting frame 61 welded on the top outer wall of detection table 5, horizontal visual detector 62 and vertical visual detector 63 respectively installed on the inner wall and top inner wall of one side of connecting frame 61.

[0037] Refer to Figures 4-5 Three-head conversion piece 10 includes gas distribution seat 11 and sealing detection head 12 with array distribution of electromagnetic valve, wherein the size of each sealing detection head 12 is different.

[0038] Refer to Figures 4-5 Fixed pipe 13 is fixedly welded on the outer wall of one side of gas distribution seat 11, and pressure gauge 14 is installed on the outer wall of fixed pipe 13, and air pipe 15 is fixedly connected on the outer wall of one end of pressure gauge 14 by flange.

[0039] Refer to Figures 1-5 PLC electric control cabinet 17 is placed on the top outer wall of detection table 5, and PLC electric control cabinet 17 is connected between horizontal visual detector 62, vertical visual detector 63, air cylinder 8, stepper motor 9, sealing detection head 12 and pressure gauge 14 through signal line.

[0040] Working principle:

[0041] Valve loading: the operator places the valve to be tested in the positioning groove 42 of the rotating table 3, and the servo motor 1 drives the rotating table 3 to rotate the valve to the detection station;

[0042] Model identification: the visual detector scans the shape of the valve body, the PLC matches the model and determines the corresponding sealing detection head 12;

[0043] Detection head switching: the stepper motor 9 drives the three-head conversion piece 10 to rotate to the target detection head position, and the air cylinder 8 pushes the sealing detection head 12 to tightly butt joint with the air inlet of the valve body;

[0044] Sealing detection: the PLC controls the electromagnetic valve on the sealing detection head 12 to fill air into the valve body, and the air pressure gauge 14 monitors the pressure change. If the pressure remains stable within the set time, it is determined to be qualified; otherwise, an alarm is triggered.

[0045] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A sealing property detection device for valve body production, comprising a servo motor (1), characterized in that, The output shaft of the servo motor (1) is fixedly connected with a main shaft (2) through a shaft coupling, and the outer wall of the top of the main shaft (2) is welded with a rotating table (3), the rotating table (3) is provided with valve body positioning members (4) distributed at equal distances on the top outer wall, and a detection table (5) is arranged on one side of the rotating table (3). The top outer wall of the detection table (5) is provided with a model identification member (6) and a mounting frame (7) at both ends respectively, the inner wall of the mounting frame (7) is fixedly connected with symmetrically distributed air cylinders (8) through screws, and the piston rod of the air cylinder (8) is fixedly connected with a stepping motor (9), and the output shaft of the stepping motor (9) is provided with a three-head conversion member (10).

2. The leak detection apparatus for valve body production according to claim 1, wherein The valve body positioning member (4) is fixedly connected on the top outer wall of the rotating table (3) through a fixing seat (41), a positioning groove (42) arranged on one side of the top of the fixing seat (41), a valve body (16) placed on the inner wall of the fixing seat (41), and the side air inlet of the valve body (16) is tightly attached to the inner wall of the positioning groove (42).

3. The leak detection apparatus for valve body production according to claim 1, wherein The model identification member (6) comprises a connecting frame (61) welded on the top outer wall of the detection table (5), a horizontal visual detector (62) and a vertical visual detector (63) mounted on the inner wall and the top inner wall of one side of the connecting frame (61) respectively.

4. The leak detection apparatus for valve body production according to claim 1, wherein The three-head conversion member (10) comprises a gas distribution seat (11) and an array of sealing detection heads (12) with electromagnetic valves, wherein the size of each sealing detection head (12) is different.

5. The leak detection apparatus for valve body production according to claim 4, wherein The outer wall of one side of the gas distribution seat (11) is fixedly welded with a fixed pipe (13), and the outer wall of the fixed pipe (13) is provided with an air pressure gauge (14), and the outer wall of one end of the air pressure gauge (14) is fixedly connected with an air pipe (15) through a flange.

6. The leak detection apparatus for valve body production according to claim 1, wherein The top outer wall of the detection table (5) is provided with a PLC electric control cabinet (17), and the PLC electric control cabinet (17) is connected with the horizontal visual detector (62), the vertical visual detector (63), the air cylinder (8), the stepping motor (9), the sealing detection head (12) and the air pressure gauge (14) through signal lines.

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