Sectional type grinding device for valve rod machining

Abstract

The utility model discloses a sectional type grinding device for valve rod machining, relates to the technical field of grinding devices, and aims to solve the problems that in the prior art, when a grinding device is used, valve rods with different diameter sections cannot be stably ground, and practicability is poor. A first lead screw box is fixedly installed above the device table, a clamping mechanism is arranged above the first lead screw box, a fixed vertical plate is arranged at the rear end of the first lead screw box and fixedly connected with the device table, a top plate is fixedly installed above the fixed vertical plate, and a grinding mechanism is arranged below the top plate. A first electric cylinder is fixedly installed above the top plate, the grinding mechanism comprises a second lead screw box and a wheel carrier, the push rod end of the first electric cylinder slidably penetrates through the top plate and is fixedly connected with the second lead screw box, and guide rods are symmetrically arranged at the front end and the rear end of the first electric cylinder correspondingly; the lower end of the guide rod slidably penetrates through the top plate and is fixedly connected with the second lead screw box.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, specifically a segmented grinding device for valve stem processing. Background Technology

[0002] The valve stem is an important component of a valve, mainly used for transmission. The valve stem is connected to the actuator or handle, and directly drives the valve core to move or rotate to realize the valve's opening and closing or regulation function. During the valve opening and closing process, the valve stem is not only a moving part and a force-bearing part, but also a sealing part. During the valve stem manufacturing process, the surface of the valve stem needs to be polished by a polishing device.

[0003] For example, the authorized patent with announcement number CN220498672U (a valve stem grinding device) includes: a grinding mechanism for grinding valve stems; a worktable for mounting the grinding mechanism; and a cleaning mechanism including rotating wheels and a cleaning sponge, the cleaning sponge being mounted on the rotating wheels, and several rotating wheels driving the cleaning sponge to clean the valve stem; wherein, the cleaning mechanism is located on one side of the feed inlet of the grinding mechanism;

[0004] While the aforementioned existing technologies facilitate cleaning of valve stem surfaces, they lack the ability to perform segmented grinding. Consequently, the grinding devices cannot stably grind valve stems with different diameter segments, resulting in poor practicality. Therefore, there is an urgent market need to develop a segmented grinding device for valve stem processing to help solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a segmented grinding device for valve stem processing, so as to solve the problem mentioned in the background art that the grinding device cannot stably grind valve stems with different diameter segments, resulting in poor practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a segmented grinding device for valve stem processing, comprising a device platform, a lead screw box fixedly installed above the device platform, a clamping mechanism provided above the lead screw box, a fixed upright plate provided at the rear end of the lead screw box, the fixed upright plate being fixedly connected to the device platform, a top plate fixedly installed above the fixed upright plate, a grinding mechanism provided below the top plate, and an electric cylinder fixedly installed above the top plate.

[0007] Preferably, the grinding mechanism includes a lead screw box and a wheel frame. The push rod end of the electric cylinder slides through the top plate and is fixedly connected to the lead screw box. Guide rods are symmetrically arranged at the front and rear ends of the electric cylinder. The lower end of the guide rod slides through the top plate and is fixedly connected to the lead screw box.

[0008] Preferably, there are two wheel frames, and a grinding wheel is rotatably installed inside each of the two wheel frames. A lead screw is rotatably installed inside the lead screw box. The threads at both ends of the lead screw are opposite. A slider is symmetrically slidably installed at both ends of the lead screw. A connecting plate is fixedly installed below the slider and is fixedly connected to the wheel frame.

[0009] Preferably, the clamping mechanism includes a clamping platform, a first side plate, and a second side plate. The first side plate and the second side plate are respectively fixedly installed on both sides above the clamping platform. The first clamping plate is provided above the clamping platform along one side of the first side plate, and the second clamping plate is provided above the clamping platform along one side of the second side plate.

[0010] Preferably, an electric cylinder is fixedly installed on the other side of the second side plate, and the push rod end of the electric cylinder slides through the second side plate and is rotatably connected to the second clamping plate.

[0011] Preferably, a motor housing is fixedly installed on the other side of the first side plate, and an electric motor is installed inside the motor housing. The output end of the electric motor is fixedly connected to the first clamping plate.

[0012] Preferably, a second lead screw is rotatably mounted inside the lead screw box, a second slider is slidably mounted on the outside of the second lead screw, and transmission baffles are symmetrically fixedly mounted on the front and rear ends of the second slider. The end of the transmission baffle away from the second slider extends out of the interior of the lead screw box and is fixedly connected to the clamping table.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model can position the grinding parts of different diameter sections on the valve stem by moving the clamping mechanism. At the same time, the introduction of the electric cylinder 8 allows the height position of the grinding mechanism 7 to be dynamically adjusted according to the diameter of each section of the valve stem, ensuring that the contact force and grinding effect are always maintained during the grinding process. This segmented grinding capability not only improves the grinding accuracy and efficiency, but also greatly enhances the applicability and practicality of the device, meeting the grinding needs of valve stems of various specifications.

[0015] () This utility model uses a grinding wheel that is rotatably installed inside the wheel frame, and a lead screw and its drive motor that are rotatably installed inside the lead screw box. Through the setting of opposite threads, the two wheel frames can move in opposite directions at the same time. When grinding different diameter sections of the valve stem, the two grinding wheels can automatically adjust the distance according to the diameter of the valve stem, without the need to manually change or adjust the grinding tools, thus improving grinding efficiency and flexibility.

[0016] (3) The clamping mechanism of this utility model drives the clamping plate two to move through the electric cylinder two, and cooperates with the clamping plate one driven by the electric motor to realize the clamping and driving rotation of the valve stem. During grinding, one end of the valve stem is placed against one side of the clamping plate one, and the clamping plate two is driven to move through the electric cylinder two to stably clamp the valve stem. Then the clamping plate one is driven by the electric motor to drive the valve stem to rotate, which is conducive to the stable grinding of the valve stem. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a segmented grinding device for valve stem processing according to the present invention;

[0018] Figure 2 This is a schematic diagram of the grinding mechanism of this utility model;

[0019] Figure 3 This is a side sectional view of the screw box II of this utility model;

[0020] Figure 4 This is a cross-sectional view of the lead screw box of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0022] In the diagram: 1. Device platform; 2. Lead screw box one; 3. Clamping mechanism; 301. Clamping platform; 302. Side plate one; 303. Side plate two; 4. Transmission folding plate; 5. Fixed upright plate; 6. Top plate; 7. Grinding mechanism; 701. Lead screw box two; 702. Wheel frame; 8. Electric cylinder one; 9. Guide rod; 10. Grinding wheel; 11. Lead screw one; 12. Slider one; 13. Connecting plate; 14. Lead screw two; 15. Slider two; 16. Clamping plate one; 17. Clamping plate two; 18. Motor box; 19. Electric cylinder two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5 An embodiment of this utility model provides a segmented grinding device for valve stem processing, including a device platform 1, a lead screw box 2 fixedly installed above the device platform 1, a clamping mechanism 3 provided above the lead screw box 2, a fixed upright plate 5 provided at the rear end of the lead screw box 2, the fixed upright plate 5 being fixedly connected to the device platform 1, a top plate 6 fixedly installed above the fixed upright plate 5, a grinding mechanism 7 provided below the top plate 6, and an electric cylinder 8 fixedly installed above the top plate 6.

[0025] In use, when grinding valve stems with different diameters, the valve stem is clamped on the clamping mechanism 3, and the grinding mechanism 7 is driven to move downward to grind the valve stem. When grinding different diameter sections of the valve stem, the clamping mechanism 3 can be moved to change the grinding position of the grinding mechanism 7 on the valve stem. The height of the grinding mechanism 7 can be adjusted according to the diameter of the different diameter sections of the valve stem by the electric cylinder 8, ensuring that a stable contact force and grinding effect are maintained throughout the grinding process. This realizes the segmented grinding capability of the valve stem and increases the practicality of the grinding device.

[0026] Please see Figure 1-3 The grinding mechanism 7 includes a lead screw box 701 and a wheel frame 702. The push rod end of the electric cylinder 8 slides through the top plate 6 and is fixedly connected to the lead screw box 701. Guide rods 9 are symmetrically arranged at the front and rear ends of the electric cylinder 8. The lower end of the guide rod 9 slides through the top plate 6 and is fixedly connected to the lead screw box 701.

[0027] The grinding mechanism 7 is slidably passed through the top plate 6 by the push rod end of the electric cylinder 8 and is fixedly connected to the lead screw box 701. The setting of the guide rod 9 realizes the stable guidance of the grinding mechanism 7, ensuring stable contact between the grinding wheel and the valve stem surface during the grinding process and improving the uniformity of grinding.

[0028] Please see Figure 2 and Figure 3 There are two wheel frames 702, and a grinding wheel 10 is rotatably installed inside each wheel frame 702. The grinding capacity is improved by setting two grinding wheels 10. A lead screw 11 is rotatably installed inside the lead screw box 2 701. A drive motor for lead screw 11 is set on one side of lead screw box 2 701. The threads at both ends of lead screw 11 are opposite. Slider 12 is symmetrically slidably installed at both ends of lead screw 11. A connecting plate 13 is fixedly installed below slider 12. The connecting plate 13 is fixedly connected to wheel frame 702.

[0029] The grinding wheel 10, which is rotatably mounted inside the wheel frame 702, and the lead screw 11 and its drive motor, which are rotatably mounted inside the lead screw box 701, are configured with opposite threads, so that the two wheel frames 702 can move in opposite directions at the same time. When grinding different diameter sections of the valve stem, the two grinding wheels 10 can automatically adjust the spacing according to the diameter of the valve stem, without the need to manually change or adjust the grinding tools, thus improving grinding efficiency and flexibility.

[0030] Please see Figure 1 and Figure 5The clamping mechanism 3 includes a clamping platform 301, a first side plate 302, and a second side plate 303. The first side plate 302 and the second side plate 303 are respectively fixedly installed on both sides above the clamping platform 301. A first clamping plate 16 is provided above the clamping platform 301 along one side of the first side plate 302. A second clamping plate 17 is provided above the clamping platform 301 along one side of the second side plate 303. An electric cylinder 19 is fixedly installed on the other side of the second side plate 303. The push rod end of the electric cylinder 19 slides through the second side plate 303 and is rotatably connected to the second clamping plate 17. A motor box 18 is fixedly installed on the other side of the first side plate 302. An electric motor is installed inside the motor box 18. The output end of the electric motor is fixedly connected to the first clamping plate 16.

[0031] The clamping mechanism 3 drives the clamping plate 17 to move via the electric cylinder 19, and cooperates with the clamping plate 16 driven by the electric motor to clamp and drive the valve stem to rotate. During grinding, one end of the valve stem is placed against one side of the clamping plate 16, and the clamping plate 17 is moved by the electric cylinder 19 to stably clamp the valve stem. Then, the clamping plate 16 is driven by the electric motor to rotate the valve stem, which is beneficial to the stable grinding of the valve stem.

[0032] Please see Figure 1 and Figure 4 Inside the lead screw box 2, a lead screw 14 is rotatably mounted. A drive motor for the lead screw 14 is provided on one side of the lead screw box 2. A slider 15 is slidably mounted on the outside of the lead screw 14. A transmission baffle 4 is symmetrically fixedly mounted on the front and rear ends of the slider 15. The end of the transmission baffle 4 away from the slider 15 extends out of the interior of the lead screw box 2 and is fixedly connected to the clamping table 301.

[0033] The screw 14 and its drive motor, which are rotatably mounted inside the screw box 2, are connected to the slider 15 and the transmission baffle 4, enabling the clamping mechanism 3 to move in the horizontal direction. This provides great convenience in adjusting the grinding position, allowing for quick changes in the grinding location without interrupting the grinding process, adapting to the grinding needs of different diameter sections of the valve stem, and increasing practicality.

[0034] Working principle: During use, the device drives the clamping plate 17 through the electric cylinder 19 in the clamping mechanism 3, which cooperates with the clamping plate 16 driven by the electric motor to achieve stable clamping and rotation of the valve stem. During the grinding process, the electric cylinder 8 pushes the lead screw box 701 and the wheel frame 702 fixed below it and the grinding wheel 10 to move steadily down along the guide rod 9. The grinding wheel 10 contacts the surface of the valve stem for grinding. At the same time, the lead screw 11 in the lead screw box 701, through its drive motor and reverse thread design, enables the two wheel frames 702 to automatically adjust the spacing to adapt to the grinding requirements of different diameter sections of the valve stem. In addition, when grinding other diameter sections of the valve stem, the lead screw 14 in the lead screw box 2 is driven to rotate. Through the connection of the slider 15 and the transmission baffle 4, the clamping mechanism 3 can move in the horizontal direction, which makes it easy to quickly change the grinding part without interrupting the grinding process. This realizes the segmented grinding of the valve stem and improves the grinding efficiency and flexibility.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A segmented grinding device for valve stem processing, comprising a device table (1), characterized in that: A lead screw box (2) is fixedly installed above the device platform (1). A clamping mechanism (3) is provided above the lead screw box (2). A fixed upright plate (5) is provided at the rear end of the lead screw box (2). The fixed upright plate (5) is fixedly connected to the device platform (1). A top plate (6) is fixedly installed above the fixed upright plate (5). A grinding mechanism (7) is provided below the top plate (6). An electric cylinder (8) is fixedly installed above the top plate (6).

2. The segmented grinding device for valve stem processing according to claim 1, characterized in that: The grinding mechanism (7) includes a lead screw box (701) and a wheel frame (702). The push rod end of the electric cylinder (8) slides through the top plate (6) and is fixedly connected to the lead screw box (701). The front end and rear end of the electric cylinder (8) are respectively symmetrically provided with guide rods (9). The lower end of the guide rod (9) slides through the top plate (6) and is fixedly connected to the lead screw box (701).

3. The segmented grinding device for valve stem processing according to claim 2, characterized in that: Two wheel frames (702) are provided, and a grinding wheel (10) is rotatably installed inside each of the two wheel frames (702). A lead screw (11) is rotatably installed inside the lead screw box (701). The threads at both ends of the lead screw (11) are opposite. A slider (12) is symmetrically slidably installed at both ends of the lead screw (11). A connecting plate (13) is fixedly installed below the slider (12). The connecting plate (13) is fixedly connected to the wheel frame (702).

4. The segmented grinding device for valve stem processing according to claim 3, characterized in that: The clamping mechanism (3) includes a clamping platform (301), a side plate one (302) and a side plate two (303). The side plate one (302) and the side plate two (303) are respectively fixedly installed on both sides above the clamping platform (301). A clamping plate one (16) is provided above the clamping platform (301) along one side of the side plate one (302), and a clamping plate two (17) is provided above the clamping platform (301) along one side of the side plate two (303).

5. The segmented grinding device for valve stem processing according to claim 4, characterized in that: An electric cylinder 2 (19) is fixedly installed on the other side of the second side plate (303). The push rod end of the electric cylinder 2 (19) slides through the second side plate (303) and is rotatably connected to the second clamping plate (17).

6. The segmented grinding device for valve stem processing according to claim 5, characterized in that: A motor housing (18) is fixedly installed on the other side of the side plate (302). An electric motor is installed inside the motor housing (18), and the output end of the electric motor is fixedly connected to the clamp plate (16).

7. The segmented grinding device for valve stem processing according to claim 6, characterized in that: A second lead screw (14) is rotatably mounted inside the lead screw box (2). A second slider (15) is slidably mounted on the outside of the second lead screw (14). A transmission baffle (4) is symmetrically fixedly mounted on the front and rear ends of the second slider (15). The end of the transmission baffle (4) away from the second slider (15) extends out of the interior of the lead screw box (2) and is fixedly connected to the clamping table (301).

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