Electromagnetic valve machining valve sleeve polishing device

Abstract

The utility model discloses a kind of electromagnetic valve processing valve sleeve polishing device, including workbench and the interface frame of setting in workbench, located in the side setting of interface frame has lifting assembly, the fixed clamp for clamping electromagnetic valve sleeve is set in the side of lifting assembly;Polishing assembly for polishing the inner wall of valve sleeve is set in the side of fixed clamp;Polishing assembly includes the polishing motor fixed in the below of workbench, the output end of polishing motor is coaxially connected with the support cylinder that can be inserted into the inner wall of valve sleeve, at least three groups of polishing plate are evenly arranged in the circumferential direction in support cylinder;Polishing plate inside is connected with inner lining guide plate, and inner lining guide plate can be moved in support cylinder radially. The utility model is equipped with polishing assembly, and the outer diameter of its support cylinder is adjustable, and the rotation fine adjustment function of cooperation fixed peg and inclined plane groove can quickly adapt to different size valve sleeve inner hole, satisfy the polishing demand of various valve sleeve.

Description

Technical Field

[0001] This utility model relates to a device for polishing valve sleeves in electromagnetic valve processing. Background Technology

[0002] In the field of solenoid valve manufacturing, the roughness of the valve sleeve inner bore directly determines the smoothness of valve core movement and sealing life.

[0003] Existing production lines generally use "horizontal internal hole polishing machines": after the valve sleeve is horizontally clamped, the long shaft polishing brush is inserted into the hole, and polishing is completed by the high-speed rotation of the abrasive cloth strip on the outer periphery of the polishing brush.

[0004] This method has poor adaptability. The outer diameter of the abrasive strip is fixed. Once the inner diameter of the valve sleeve varies from batch to batch, the entire polishing brush needs to be replaced, which takes a long time to adjust.

[0005] Therefore, a device for polishing valve sleeves in electromagnetic valve processing is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a valve sleeve polishing device for electromagnetic valve processing, so as to solve the problem mentioned in the background art that the existing technology has poor adaptability and cannot quickly meet the polishing needs of valve sleeves of different specifications.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a valve sleeve polishing device for processing electromagnetic valves, comprising a worktable and a connecting frame disposed on the worktable, a lifting assembly disposed on the side of the connecting frame, a fixing fixture for clamping the valve sleeve of the electromagnetic valve disposed on the side of the lifting assembly, and a polishing assembly for polishing the inner wall of the valve sleeve disposed on the side of the fixing fixture. The polishing assembly includes a polishing motor fixed below the workbench surface. The output end of the polishing motor is coaxially connected to a support cylinder that can extend into the inner wall of the valve sleeve. At least three sets of polishing plates are evenly arranged circumferentially at the support cylinder. The inner side of the polishing plate is connected to an inner guide plate, which can move radially inside the support cylinder; An elastic element for resetting the polishing plate is provided between the support cylinder and the inner guide plate; A fixing bolt is provided on the support cylinder, which can be rotated and pressed down to drive the inner lining guide plate to move radially outward; The lower end of the fixing bolt is provided with a sloping groove, and the inner lining guide plate has a sloping surface that slides with the sloping groove, so that when the fixing bolt is screwed in, it pushes the polishing plate against the inner wall of the valve sleeve, and the polishing motor can be started to achieve inner wall polishing.

[0008] Preferably, the elastic element includes a through groove formed in the lower part of the inner lining guide plate for its movement, a guide rod is provided at the through groove, and a return spring is provided on the outer periphery of the guide rod.

[0009] Preferably, the side wall of the support cylinder has a radially penetrating guide groove, the polishing plate is placed in the guide groove and can slide radially, the lower end of the guide groove is provided with a support baffle, and a through hole for the guide rod to pass through is provided on the side of the support baffle.

[0010] Preferably, the fixing bolt includes a bolt rod, the upper end of which is rotatably connected to a connecting bolt plate, and a torsion plate for manual rotation is fixedly connected to the upper end of the connecting bolt plate.

[0011] Preferably, the lower end of the bolt has multiple inclined grooves on its outer circumferential surface. The inclined grooves have the same angle as the inclined surface of the inner guide plate, and the inclined surface slopes from top to bottom and inward to ensure that all polishing plates are pushed outward uniformly when the fixing bolt is screwed down.

[0012] Preferably, the upper wall of the support cylinder is provided with an internal thread, and the outer periphery of the connecting bolt plate is provided with an external thread, which cooperates with the internal thread at the upper end of the support cylinder to realize the helical feeding of the fixing bolt.

[0013] Preferably, the outer diameter of the support cylinder is smaller than the inner diameter of the valve sleeve, so that the valve sleeve is fitted on the outer periphery of the support cylinder and the inner wall of the valve sleeve is polished by a polishing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The polishing component of this utility model has an adjustable outer diameter of the support cylinder. With the rotational fine adjustment function of the fixing bolt and the inclined groove, it can quickly adapt to the inner hole of valve sleeve of different sizes, with a wide coverage range. It does not require frequent replacement of polishing elements, has good versatility, and meets diverse valve sleeve polishing needs.

[0015] The fit between the fixing bolt and the inner lining guide plate allows the polishing plate to expand evenly and in a controlled manner, ensuring consistency in each polishing process. This improves the polishing quality of the inner wall, reduces errors and unevenness, and consequently enhances the smoothness of valve core movement and sealing life.

[0016] The threaded feed design of the fixing bolt supports wear compensation. Compensation can be completed simply by screwing in the fixing bolt, which greatly reduces equipment downtime, resulting in high production efficiency, fast production pace, and strong competitiveness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the oblique structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the polishing assembly structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the fixing bolt peeling structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the support cylinder structure according to an embodiment of the present utility model; Figure 6 This is a cross-sectional view of the support cylinder according to an embodiment of the present invention.

[0018] In the diagram: 1. Workbench; 2. Connecting frame; 3. Fixing clamp; 4. Polishing assembly; 41. Polishing motor; 42. Support cylinder; 421. Guide groove; 422. Support baffle; 423. Through hole; 424. Internal thread; 43. Polishing plate; 44. Inner guide plate; 45. Elastic element; 451. Through groove; 452. Guide rod; 453. Return spring; 46. Fixing bolt; 461. Inclined groove; 462. Bolt rod; 463. Connecting bolt plate; 464. Torsion plate; 465. External thread. Detailed Implementation

[0019] To address the problem of poor adaptability of existing technologies and their inability to quickly meet the polishing requirements of valve sleeves of different specifications, this utility model provides a valve sleeve polishing device for electromagnetic valve processing. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Please see Figure 1-6 This utility model provides a valve sleeve polishing device for processing electromagnetic valves, comprising a worktable 1 and a connecting frame 2 disposed on the worktable 1, a lifting assembly disposed on the side of the connecting frame 2, and a fixing fixture 3 for clamping the valve sleeve of the electromagnetic valve disposed on the side of the lifting assembly; characterized in that: a polishing assembly 4 for polishing the inner wall of the valve sleeve is disposed on the side of the fixing fixture 3. The polishing assembly 4 includes a polishing motor 41 fixed below the workbench 1. The output end of the polishing motor 41 is coaxially connected to a support cylinder 42 that can extend into the inner wall of the valve sleeve. At least three sets of polishing plates 43 are evenly arranged circumferentially at the support cylinder 42. The inner side of the polishing plate 43 is connected to an inner guide plate 44, which can move radially inside the support cylinder 42. An elastic element 45 for resetting the polishing plate 43 is provided between the support cylinder 42 and the inner lining guide plate 44. The elastic element 45 includes a through groove 451 formed in the lower part of the inner lining guide plate 44 for its movement, a guide rod 452 is provided in the through groove 451, and a reset spring 453 is provided on the outer periphery of the guide rod 452. A guide groove 421 is formed in the side wall of the support cylinder 42, and the polishing plate 43 is placed in the guide groove 421 and can slide radially. A support baffle 422 is provided at the lower end of the guide groove 421, and a through hole 423 for the guide rod 452 to pass through is provided on the side of the support baffle 422. The fixing bolt 46 includes a bolt rod 462, the upper end of which is rotatably connected to a connecting bolt plate 463, and a torsion plate 464 for manual rotation is fixedly connected to the upper end of the connecting bolt plate 463. The lower outer circumferential surface of the bolt 462 is provided with multiple inclined grooves 461. The inclined grooves 461 have the same inclined angle as the inner guide plate 44, and the inclined surfaces slope inward from top to bottom to ensure that all polishing plates 43 are pushed outward uniformly when the fixing bolt 46 is screwed down. The upper wall side of the support cylinder 42 is provided with an internal thread 424, and the outer circumference of the connecting bolt plate 463 is provided with an external thread 465, which cooperates with the internal thread 424 at the upper end of the support cylinder 42 to realize the helical feeding of the fixing bolt 46. The outer diameter of the support cylinder 42 is smaller than the inner diameter of the valve sleeve, so that the valve sleeve is fitted on the outer circumferential side of the support cylinder 42 and the inner wall side of the valve sleeve is polished by the polishing plate 43.

[0021] A fixing bolt 46 is provided on the support cylinder 42, which can be rotated and pressed down to drive the inner lining guide plate 44 to move radially outward; The lower end of the fixing bolt 46 is provided with a sloping groove 461, and the inner lining guide plate 44 has a sloping surface that slides with the sloping groove 461, so that when the fixing bolt 46 is screwed in, it pushes the polishing plate 43 against the inner wall of the valve sleeve, and the polishing motor 41 is started to achieve the polishing of the inner wall.

[0022] The working principle of the electromagnetic valve processing valve sleeve polishing device provided by this utility model is as follows: In use, according to the inner diameter of the valve sleeve, rotate the torsion plate 464 of the fixing bolt 46 to retract the polishing plate 43 to the initial position. At this time, the outer diameter of the support cylinder 42 is at its minimum, which facilitates subsequent smooth insertion into the inner cavity of the valve sleeve and prepares it to adapt to different valve sleeve inner diameters.

[0023] Place the valve sleeve to be polished vertically in the fixing fixture 3, and firmly fix the valve sleeve using the clamping device of the fixture. When clamping, ensure that its central axis is basically coincident with the axis of the support cylinder 42.

[0024] The lifting assembly slowly extends the valve sleeve axially into the outer periphery of the support cylinder 42 until the polishing plate 43 reaches the inner wall area of ​​the valve sleeve to be polished. Ensuring the coaxiality of the support cylinder 42 and the valve sleeve creates favorable conditions for the polishing plate 43 to subsequently press evenly against the inner wall.

[0025] By gently rotating the torsion plate 464 of the fixing bolt 46, and with the sliding cooperation between the inclined groove 461 and the inclined surface of the inner guide plate 44, the polishing plate 43 slowly expands radially outward. During this process, the inner guide plate 44 is forced to move towards the support baffle 422 through the through groove 451, which squeezes the return spring 453 on the outer periphery of the guide rod 452. The return spring 453 is forced to contract until it contacts the inner wall of the valve sleeve.

[0026] Then the polishing motor 41 is started, and the support cylinder 42 drives the polishing plate 43 to rotate at high speed according to the set speed. The polishing plate 43 polishes the inner wall of the valve sleeve.

[0027] Once the predetermined polishing time is reached, the polishing motor 41 is immediately turned off, at which point the polishing plate 43 stops rotating. Next, the torsion plate 464 of the fixing bolt 46 is slowly rotated in the opposite direction, causing the polishing plate 43 to retract radially inward under the reset action of the elastic element 45, returning to its initial state, so that the valve sleeve can be easily removed from the outer periphery of the support cylinder 42. The polished valve sleeve is then removed from the fixing clamp 3, and tools such as compressed air, brushes, and special cleaning agents are used to thoroughly clean the residual polishing liquid, abrasive particles, and metal shavings on the inner and outer surfaces of the valve sleeve.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve machining valve sleeve polishing device, comprising: The worktable (1) and the connecting frame (2) provided on the worktable (1) are provided with a lifting component on the side of the connecting frame (2) and a fixing clamp (3) for clamping the solenoid valve sleeve is provided on the side of the lifting component; characterized in that: a polishing component (4) for polishing the inner wall of the valve sleeve is provided on the side of the fixing clamp (3). The polishing assembly (4) includes a polishing motor (41) fixed below the workbench (1). The output end of the polishing motor (41) is coaxially connected to a support cylinder (42) that can extend into the inner wall of the valve sleeve. At least three sets of polishing plates (43) are evenly arranged circumferentially at the support cylinder (42). The polishing plate (43) is connected to an inner guide plate (44) on its inner side, and the inner guide plate (44) can move radially within the support cylinder (42). An elastic element (45) for resetting the polishing plate (43) is provided between the support cylinder (42) and the inner guide plate (44). A fixing bolt (46) is provided on the support cylinder (42) so that the inner lining guide plate (44) can be driven to move radially outward by rotating and pressing down. The lower end of the fixing bolt (46) is provided with a sloping groove (461), and the inner lining guide plate (44) has a sloping surface that slides with the sloping groove (461), so that when the fixing bolt (46) is screwed in, it pushes the polishing plate (43) against the inner wall of the valve sleeve, and the polishing motor (41) can start to achieve inner wall polishing.

2. The electromagnetic valve processing valve sleeve polishing device according to claim 1, characterized in that: The elastic element (45) includes a through groove (451) formed in the lower part of the inner lining guide plate (44) for its movement, a guide rod (452) is provided at the through groove (451), and a return spring (453) is provided on the outer periphery of the guide rod (452).

3. The solenoid valve processing valve sleeve polishing device according to claim 2, characterized in that: The side wall of the support cylinder (42) has a radially penetrating guide groove (421). The polishing plate (43) is placed in the guide groove (421) and can slide radially. The lower end of the guide groove (421) is provided with a support baffle (422). A through hole (423) for the guide rod (452) to pass through is provided on the side of the support baffle (422).

4. The electromagnetic valve processing valve sleeve polishing device according to claim 3, characterized in that: The fixing bolt (46) includes a bolt rod (462), the upper end of which is rotatably connected to a connecting bolt plate (463), and a torsion plate (464) for manual rotation is fixedly connected to the upper end of the connecting bolt plate (463).

5. The electromagnetic valve processing valve sleeve polishing device according to claim 4, characterized in that: The lower end of the bolt (462) has multiple inclined grooves (461) on its outer circumferential surface. The inclined grooves (461) have the same inclined angle as the inner guide plate (44), and the inclined surfaces are inclined from top to bottom and inward to ensure that when the fixing bolt (46) rotates down, it pushes all the polishing plates (43) to expand outward evenly.

6. The electromagnetic valve processing valve sleeve polishing device according to claim 4, characterized in that: The upper wall of the support cylinder (42) is provided with an internal thread (424), and the outer periphery of the connecting bolt plate (463) is provided with an external thread (465), which cooperates with the internal thread (424) at the upper end of the support cylinder (42) to realize the spiral feed of the fixing bolt (46).

7. The electromagnetic valve processing valve sleeve polishing device according to claim 1, characterized in that: The outer diameter of the support cylinder (42) is smaller than the inner diameter of the valve sleeve, so that the valve sleeve is fitted on the outer periphery of the support cylinder (42) and the inner wall of the valve sleeve is polished by the polishing plate (43).

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