Valve body placing device for assembling refueling stop valve

Abstract

The utility model relates to the technical field of automatic assembly, and discloses a valve body placing device for assembling a refueling stop valve, which comprises a rack, a belt conveying device arranged on the rack, an end cover assembly arranged on the belt conveying device, a feeding device arranged on the rack, a deburring device arranged on the belt conveying device, and a discharging device arranged on the rack. A discharging mechanism is arranged on the machine frame, and a man-machine touch screen is connected to the machine frame. By means of the end cover assembly, positioning is facilitated, accurate positioning is facilitated, press-in is facilitated, and automatic assembly between the end cover and the valve body is facilitated. And the deburring device is arranged for grinding and polishing, and has the advantages of being environmentally friendly, uniform in polishing, thorough in deburring, free of damage to workpieces and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic assembly, in particular to a valve body placing device for assembling a refueling stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem must be large, otherwise the valve stem will bend.

[0003] After searching, the Chinese patent with the announcement number CN218836718U discloses a stop valve assembly device, including: a frame, a valve body feeding device, a nut assembly device, a cap assembly device, a stepping device, a turning device and a feeding device. The valve body feeding device is used to feed the stepping device, the nut assembly device is used to assemble the front ring and nut for the valve body, the cap assembly device is used to assemble the cap for the valve body, the stepping device is set at the center of the frame, and is used to provide a valve body step station, the turning device is used to rotate the valve body placement seat on the stepping device station to achieve the purpose of rotating the valve body, and the feeding device is used to remove the assembled valve body to vacate the station.

[0004] However, in the prior art, the end faces of the end covers are designed with 6 holes, which are not coordinated with the angles of the 4 sides, which is not conducive to precise positioning, and the bottom angle of the buckle is large, which is not conducive to the automated assembly of the end cover and the valve body. To this end, in response to the above problems, we provide a valve body placement device for assembling a refueling stop valve to solve the problems in the background technology. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a valve body placement device for assembling a refueling stop valve.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a valve body placement device for assembling a refueling stop valve, comprising a frame, a belt conveyor device is arranged on the frame, an end cap assembly is arranged on the belt conveyor device, the end cap assembly comprises an end face, a buckle is connected on the end face, four through holes of equal size are opened on the end face, and a center hole is opened in the middle of the end face. Through the belt conveyor device, a sensor and a proximity switch are connected to detect whether the parts are missing and whether there are any, and an O-ring and a spring material box are also arranged. The valve body, O-ring, valve core and spring are assembled manually, put into the work station, and placed in the belt conveyor device. Through the end cap assembly, the distance between the end cap clamp and the valve body assembly hole is increased by 1MM, so as to appropriately widen the distance, so that it is convenient for positioning, and the six holes originally opened on the end face are changed to four through holes, so that the relationship between the angles of the four sides is more coordinated, which is conducive to precise positioning, and the angle of the buckle is also chamfered accordingly to reduce the pressure, which is convenient for pressing, and is conducive to the automatic assembly between the end cap and the valve body.

[0007] Preferably, the frame is provided with a feeding device, which is composed of a moving cylinder, a rotating cylinder, a spring positioning cylinder, a first clamping cylinder, an end cover positioning and a vibration plate; wherein a fixture suction cup is provided below the rotating cylinder. Through the provided feeding device, the valve cover can be vibrated to the positioning position by the vibration plate, and then the valve cover is sucked by the fixture suction cup, the spring is clamped to stabilize the position by the clamp, and then the valve cover is clamped by the clamp and buckled into the assembled valve body, and then the rotating cylinder is rotated by an angle to ensure that the four openings of the valve cover and the valve body are all entered.

[0008] Preferably, the belt conveyor is provided with a deburring device, the deburring device comprises a fixing plate, a lifting cylinder is connected to the fixing plate, a telescopic rod is connected to the output end of the lifting cylinder, a cloth bag is sleeved at the lower end of the telescopic rod, and abrasive is installed inside the cloth bag. The deburring device is provided to allow the abrasive installed in the cloth bag to enter the center hole of the end face, thereby performing grinding and polishing, and because the abrasive is a semi-fluid or liquid, it is not necessary to care about the structural characteristics of the inner hole, thereby having the advantages of environmental protection, uniform polishing, thorough deburring, and no damage to the workpiece.

[0009] Preferably, the frame is provided with an airtightness detection jig and a carbon dioxide marking machine, and the carbon dioxide marking machine is connected with a safety baffle. The airtightness detection jig is provided, so that the assembled valve body can be tested for airtightness. If there are defective products, the system will prompt and mark them to the next process. When the airtightness check fails, the equipment will sound an alarm and stop running until manual intervention. The carbon dioxide marking machine is provided, so that good parts can be identified and marked, and two products can be switched for marking.

[0010] Preferably, the frame is provided with a feeding mechanism, which is composed of a rodless cylinder, a thin cylinder, a second clamping cylinder, and a conveying cylinder; wherein the second clamping cylinder is connected with a good product channel and a bad product channel, and the good product channel is connected with a finished product box. Through the provided feeding mechanism, the good products marked by the previous station flow into the good product channel, and the bad products flow into the bad product channel. The good products are continuously fed into the finished product box from the good product channel, and the bad products are finally uniformly reinstalled and re-tested.

[0011] Preferably, a human-machine touch screen is connected to the frame. The human-machine touch screen can be used to start the equipment with one button. In a normal working cycle, the operator does not need to observe the equipment. If an abnormality occurs, the equipment will automatically alarm and stop production, thereby ensuring personnel safety.

[0012] Compared with the prior art, the utility model provides a valve body placement device for assembling a refueling stop valve, which has the following beneficial effects:

[0013] 1. This valve body placement device for assembling a refueling stop valve has an end cover assembly, and the distance between the end cover clamp and the valve body assembly hole is increased by 1MM, which is convenient for positioning. The six holes originally opened on the end face are changed to four through holes, which are more coordinated with the angle relationship of the four sides, which is conducive to precise positioning. The angle of the buckle is also chamfered accordingly to reduce the pressure, which is convenient for pressing in and is conducive to the automated assembly between the end cover and the valve body.

[0014] 2. The valve body placement device for assembling the refueling stop valve, through the provided deburring device, allows the abrasive installed in the cloth bag to enter the center hole of the end face for grinding and polishing. Because the abrasive is a semi-fluid or liquid, there is no need to care about the structural characteristics of the inner hole. It has the advantages of environmental protection, uniform polishing, thorough deburring and no damage to the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is the front view of the utility model;

[0017] Figure 2 This is a cross-sectional view of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the feeding mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the end cover assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the external structure of the utility model.

[0021] In the figure: 1. Frame; 2. Belt conveyor; 3. Feeding device; 301. Moving cylinder; 302. Rotating cylinder; 303. Spring positioning cylinder; 304. First clamping cylinder; 305. End cover positioning; 306. Vibrating plate; 4. End cover assembly; 401. End face; 402. Buckle; 403. Through hole; 404. Center hole; 5. Deburring device; 501. Fixed plate; 502. Lifting cylinder; 503. Telescopic rod; 504. Cloth bag; 6. Airtightness detection fixture; 7. Carbon dioxide marking machine; 8. Unloading mechanism; 9. Human-machine touch screen. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0023] like Figure 1-5 As shown, the utility model provides a valve body placement device for assembling a refueling stop valve, including a frame 1, a belt conveyor 2 is arranged on the frame 1, an end cover assembly 4 is arranged on the belt conveyor 2, the end cover assembly 4 includes an end face 401, a buckle 402 is connected to the end face 401, four through holes 403 of equal size are opened on the end face 401, and a center hole 404 is opened in the middle of the end face 401. Through the belt conveyor 2, which is connected with a sensor and a proximity switch, it can detect whether it is missing and whether there are parts, and an O-ring and a spring material box are also arranged. The valve body, O-ring, valve core, and spring are assembled manually, put into the work station, and placed in the belt conveyor 2. By setting up the end cover assembly 4, the distance between the end cover clamp and the valve body assembly hole is increased by 1MM, thereby appropriately widening the distance to facilitate positioning, and the six holes originally opened on the end face 401 are changed to four through holes 403, so that the relationship with the angles of the four sides is more coordinated, which is conducive to precise positioning, and the angle of the buckle 402 is also reduced accordingly, which is convenient for pressing in and is conducive to the automated assembly between the end cover and the valve body.

[0024] The frame 1 is provided with a feeding device 3, which is composed of a moving cylinder 301, a rotating cylinder 302, a spring positioning cylinder 303, a first clamping cylinder 304, an end cover positioning 305 and a vibration plate 306; wherein, a fixture suction cup is provided below the rotating cylinder 302. Through the setting of the feeding device 3, the valve cover can be vibrated to the positioning position by the vibration plate 306, and then the valve cover is sucked by the fixture suction cup, the spring is clamped to stabilize the position by the fixture, and then the valve cover is clamped by the fixture and buckled into the assembled valve body, and then the rotating cylinder 302 is rotated to ensure that the four openings of the valve cover and the valve body are all entered.

[0025] In this embodiment, by setting the end cover assembly 4, the distance between the end cover clamp and the valve body assembly hole is increased by 1MM, which is convenient for positioning. The six holes originally opened on the end face 401 are changed to four through holes 403, so that the relationship with the angles of the four sides is more coordinated, which is conducive to precise positioning. The angle of the buckle 402 is also chamfered accordingly to facilitate pressing in, which is conducive to the automated assembly between the end cover and the valve body. Example

[0026] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a deburring device 5 is provided on the belt conveyor 2, and the deburring device 5 includes a fixing plate 501, a lifting cylinder 502 is connected to the fixing plate 501, a telescopic rod 503 is connected to the output end of the lifting cylinder 502, a cloth bag 504 is sleeved on the lower end of the telescopic rod 503, and abrasive is installed inside the cloth bag 504. Through the deburring device 5, the abrasive installed in the cloth bag 504 enters the central hole 404 of the end face 401, so as to perform grinding and polishing, and because the abrasive is a semi-fluid or liquid, it is not necessary to care about the structural characteristics of the inner hole, so that it has the advantages of environmental protection, uniform polishing, thorough deburring and no damage to the workpiece.

[0027] The frame 1 is provided with an airtightness detection jig 6 and a carbon dioxide marking machine 7, and a safety baffle is connected to the carbon dioxide marking machine 7. The airtightness detection jig 6 is provided to enable the assembled valve body to be tested for airtightness. If there are defective products, the system will prompt and mark them to the next process. When the airtightness inspection fails, the equipment will sound an alarm and stop running until manual intervention. The carbon dioxide marking machine 7 is provided to enable the good parts to be identified and marked, and the marking work can be switched between two products.

[0028] The frame 1 is provided with a feeding mechanism 8, which is composed of a rodless cylinder, a thin cylinder, a second clamping cylinder, and a conveying cylinder; wherein the second clamping cylinder is connected with a good product channel and a bad product channel, and the good product channel is connected with a finished product box. Through the feeding mechanism 8, the good products marked by the previous station flow into the good product channel, and the bad products flow into the bad product channel. The good products are continuously fed into the finished product box from the good product channel, and the bad products are finally uniformly reinstalled and re-tested.

[0029] The rack 1 is connected with a human-machine touch screen 9. The human-machine touch screen 9 can be started with one key. In a normal working cycle, the operator does not need to observe the equipment. If an abnormality occurs, the equipment will automatically alarm and stop production, thereby ensuring personnel safety.

[0030] In this embodiment, the deburring device 5 is provided to allow the abrasive installed in the cloth bag 504 to enter the central hole 404 of the end face 401 for grinding and polishing. Because the abrasive is a semi-fluid or liquid, there is no need to care about the structural characteristics of the inner hole. This method has the advantages of being environmentally friendly, uniform polishing, thorough deburring, and no damage to the workpiece.

[0031] The working principle of the valve body placement device for assembling a refueling stop valve will be described in detail below.

[0032] like Figure 1-5 As shown, when in use, the valve body, O-ring, valve core and spring are assembled manually, put into the work station, and placed in the belt conveyor 2. The equipment is started by one button through the human-machine touch screen 9, and the thin cylinder is used to locate the material. The first clamping cylinder 304 grabs the parts, and the synchronous belt is synchronously transmitted. The lifting cylinder 502 starts to work, and the telescopic rod 503 is reciprocated up and down to make its running spacing equal to the transmission spacing of the synchronous belt. The abrasive installed in the bag 504 is retracted to the inside of the center hole 404 of the end cover, and the center hole 404 is deburred. Because the abrasive is a semi-fluid or liquid, there is no need to care about the structural characteristics of the inner hole, so it has the advantages of environmental protection, uniform polishing, thorough deburring and no damage to the workpiece. By setting up the end cover assembly 4, the distance between the end cover clamp and the valve body assembly hole is increased by 1MM, which is convenient for positioning. The six holes originally opened on the end face 401 are changed to four through holes 403, so that the relationship with the angles of the four sides is more coordinated, which is conducive to precise positioning. The angle of the buckle 402 is also chamfered accordingly to facilitate pressing in, which is conducive to the automated assembly between the end cover and the valve body.

Claims

1. A valve body placement device for assembling a refueling stop valve, comprising a frame (1), characterized in that: The frame (1) is provided with a belt conveyor (2), the belt conveyor (2) is provided with an end cover assembly (4), the end cover assembly (4) comprises an end surface (401), a buckle (402) is connected to the end surface (401), four through holes (403) of equal size are opened on the end surface (401), and a center hole (404) is opened in the middle of the end surface (401).

2. A valve body placement device for assembling a refueling stop valve according to claim 1, characterized in that: The frame (1) is provided with a loading device (3), the loading device (3) comprising a moving cylinder (301), a rotating cylinder (302), a spring positioning cylinder (303), a first clamping cylinder (304), an end cover positioning (305) and a vibration plate (306); wherein a fixture suction cup is provided below the rotating cylinder (302).

3. A valve body placement device for assembling a refueling stop valve according to claim 1, characterized in that: The belt conveyor (2) is provided with a deburring device (5), the deburring device (5) comprising a fixing plate (501), the fixing plate (501) being connected to a lifting cylinder (502), the output end of the lifting cylinder (502) being connected to a telescopic rod (503), the lower end of the telescopic rod (503) being sleeved with a cloth bag (504), the cloth bag (504) being provided with abrasive material inside.

4. A valve body placement device for assembling a refueling stop valve according to claim 1, characterized in that: An airtightness detection jig (6) and a carbon dioxide marking machine (7) are arranged on the frame (1), and a safety baffle is connected to the carbon dioxide marking machine (7).

5. The valve body placement device for assembling a refueling stop valve according to claim 1, characterized in that: The frame (1) is provided with a material unloading mechanism (8), which is composed of a rodless cylinder, a thin cylinder, a second clamping cylinder, and a conveying cylinder; wherein the second clamping cylinder is connected to a good product channel and a bad product channel, and the good product channel is connected to a finished product box.

6. A valve body placement device for assembling a refueling stop valve according to claim 1, characterized in that: The frame (1) is connected to a human-machine touch screen (9).

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