Grinding tool for sealing surface of pneumatic control valve

Abstract

The utility model relates to the technical field of valve core grinding, in particular to a grinding tool for a sealing surface of a pneumatic control valve, which not only can drive the control valve to feed and discharge materials and improve the working efficiency, but also can timely extract and collect sweeps during grinding so as to facilitate subsequent processing. Comprising a conveying mechanism; the device further comprises two guide mechanisms, a positioning mechanism, a grinding mechanism and a waste collecting mechanism, the two guide mechanisms are installed on the conveying mechanism and guide the adjusting valve, the positioning mechanism is installed on the conveying mechanism and positions the front end of the adjusting valve, and the grinding mechanism is installed on the conveying mechanism and grinds the sealing face of the adjusting valve. And the waste collecting mechanism is mounted on the positioning mechanism and is used for extracting and collecting waste chips.

Description

Technical Field

[0001] This utility model relates to the technical field of valve core grinding, and in particular to a grinding fixture for the sealing surface of a pneumatic regulating valve. Background Technology

[0002] During operation, the sealing surfaces of control valves are worn to varying degrees due to frequent adjustments of the medium flow rate, resulting in unstable flow rate when the control valve adjusts the medium. Therefore, it is necessary to regularly inspect and grind the valve core.

[0003] Existing pneumatic control valve sealing surface grinding fixtures, such as the control valve sealing surface grinding device disclosed in utility model patent application number 202120984809.8, mainly include a first clamping rod and a second clamping rod for clamping the control valve stem. Both the first and second clamping rods are detachably equipped with clamps that fit against the outer wall of the valve stem. The first and second clamping rods clamp the valve stem together via a connector. In use, a clamp suitable for the valve stem is selected, and the arc surfaces of the clamps on the first and second clamping rods are fastened onto the valve stem, ensuring the first and second clamping rods are parallel. After adjusting the clamping height, the first and second clamping rods are connected with butterfly screws, with the two butterfly screws positioned on either side of the valve stem. Then, the handle is adjusted to be perpendicular to the horizontal line and tightened with nuts.

[0004] However, the surface of the pneumatic control valve is uneven, and most of the existing grinding fixtures require manual feeding and fixing, which is inefficient. Moreover, after grinding, most of the waste remains in the valve body and needs to be cleaned manually, which affects subsequent processing. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a pneumatic control valve sealing surface grinding fixture that can not only drive the loading and unloading of the control valve, improving work efficiency, but also extract and collect waste chips in time during grinding, facilitating subsequent processing.

[0006] This utility model discloses a pneumatic control valve sealing surface grinding fixture, including a conveying mechanism; it also includes two sets of guiding mechanisms, a positioning mechanism, a grinding mechanism, and a waste collection mechanism. Both sets of guiding mechanisms are mounted on the conveying mechanism to guide the control valve. The positioning mechanism is mounted on the conveying mechanism to position the front end of the control valve. The grinding mechanism is mounted on the conveying mechanism to grind the sealing surface of the control valve. The waste collection mechanism is mounted on the positioning mechanism to extract and collect the waste. The conveying mechanism drives the control valve forward, adjusts the distance between the two sets of guiding mechanisms to guide the control valve and prevent it from tipping over, then activates the positioning mechanism to fix the front end of the control valve, facilitating the grinding mechanism to grind the sealing surface of the control valve. Simultaneously, the waste collection mechanism is activated to extract and collect the ground waste.

[0007] Preferably, the conveying mechanism includes a workbench, a controller, and a conveyor belt. The bottom of the workbench is connected to the ground, the controller is installed on the workbench, and the conveyor belt is installed on the workbench. The operator places the regulating valve vertically on the conveyor belt and controls the conveyor belt to drive the regulating valve forward through the controller. When the regulating valve stops against the positioning mechanism, the controller controls the conveyor belt to start again after grinding is completed, and continues to drive the regulating valve forward to feed the material.

[0008] Preferably, the guiding mechanism includes two sets of first hydraulic cylinders, a connecting frame, and multiple sets of rubber rollers. Both sets of first hydraulic cylinders are mounted on the worktable, the connecting frame is mounted on the top of the two sets of first hydraulic cylinders, and the multiple sets of rubber rollers are mounted on the connecting frame. The two guiding mechanisms are mounted opposite each other on the worktable. According to the width of the regulating valve, the operator controls the two sets of first hydraulic cylinders to extend and push the connecting frame and multiple sets of rubber rollers through the controller, so that the two guiding mechanisms cooperate to clamp the regulating valve and keep the regulating valve in a vertical state. The multiple sets of rubber rollers facilitate the forward movement of the regulating valve and guide it.

[0009] Preferably, the positioning mechanism includes a servo motor, a reducer, a rotating shaft, a support plate, a positioning block, and a connecting sleeve. The servo motor is mounted on the worktable, the reducer is mounted on the worktable, the rotating shaft is rotatably mounted on the worktable and connected to the reducer, the support plate is mounted on the rotating shaft, the positioning block is mounted on the support plate, and the connecting sleeve is mounted on the support plate. The positioning block abuts against the front end of the regulating valve to facilitate positioning of the regulating valve. The connecting sleeve is aligned with the interface of the regulating valve. After grinding is completed, the servo motor is started, and the servo motor drives the rotating shaft to rotate through the reducer. The rotating shaft rotates 180°, causing the support plate and the positioning block to flip upward.

[0010] Preferably, the positioning block is made of rubber; rubber has a certain elasticity, which can buffer the impact on the regulating valve, prevent it from rubbing against the front end of the regulating valve when it is fixed, and ensure the integrity of the coating on the surface of the regulating valve.

[0011] Preferably, the grinding mechanism includes four sets of guide columns, two sets of second hydraulic cylinders, a movable plate, a motor, and a grinding disc. The four sets of guide columns are all mounted on the worktable. The bottom ends of the two sets of second hydraulic cylinders are connected to the top end of the worktable. The movable plate is slidably mounted on the four sets of guide columns, and the bottom end of the movable plate is connected to the top end of the two sets of second hydraulic cylinders. The motor is mounted on the movable plate, and the grinding disc is mounted on the motor. The two sets of second hydraulic cylinders pull the movable plate down along the four sets of guide columns, so that the grinding disc penetrates into the regulating valve. The motor is started, and the motor drives the grinding disc to rotate and grind the sealing surface of the regulating valve.

[0012] Preferably, the waste collection mechanism includes an air pump, an air extraction pipe, a collection box, an air extraction hose, two sets of filter plates, and two sets of pull rings. The bottom end of the air pump is connected to the top end of the workbench. The air extraction pipe is installed on the air pump. The collection box is installed on the air pump and communicates with the inside of the air extraction pipe. The air extraction hose is installed on the collection box and communicates with the inside of the connecting sleeve. Both sets of filter plates are slidably installed. When the air pump is started, the air pump draws negative pressure into the collection box through the air extraction pipe, thereby causing the waste in the regulating valve to be sucked into the collection box through the connecting sleeve and the air extraction hose. The two sets of filter plates filter and collect the waste. After long-term use, the pull rings are pulled out to remove the filter plates for cleaning.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the conveying mechanism drives the regulating valve forward, adjusts the distance between the two sets of guiding mechanisms to guide the regulating valve and prevent the regulating valve from tipping over, and then the positioning mechanism is activated to fix the front end of the regulating valve, so as to facilitate the grinding mechanism to grind the sealing surface of the regulating valve. At the same time, the waste collection mechanism is activated to extract and collect the waste generated by grinding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a cross-sectional isometric structural diagram of the conveying mechanism and guiding mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional isometric structural diagram of the positioning mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged isometric structural diagram of the grinding mechanism of this utility model;

[0018] Figure 5 This is a partially enlarged isometric structural diagram of the waste collection mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 01, conveying mechanism; 11, workbench; 12, controller; 13, conveyor belt; 02, guiding mechanism; 21, first hydraulic cylinder; 22, connecting frame; 23, rubber roller; 03, positioning mechanism; 31, servo motor; 32, reducer; 33, rotating shaft; 34, support plate; 35, positioning block; 36, connecting sleeve; 04, grinding mechanism; 41, guide column; 42, second hydraulic cylinder; 43, moving plate; 44, motor; 45, grinding disc; 05, waste collection mechanism; 51, air pump; 52, air extraction pipe; 53, collection box; 54, air extraction hose; 55, filter plate; 56, pull ring. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] This utility model discloses a pneumatic regulating valve sealing surface grinding fixture, comprising a conveying mechanism 01; it also includes two sets of guiding mechanisms 02, a positioning mechanism 03, a grinding mechanism 04, and a waste collection mechanism 05. The two sets of guiding mechanisms 02 are mounted on the conveying mechanism 01 and guide the regulating valve; the positioning mechanism 03 is mounted on the conveying mechanism 01 and positions the front end of the regulating valve; the grinding mechanism 04 is mounted on the conveying mechanism 01 and grinds the sealing surface of the regulating valve; the waste collection mechanism 05 is mounted on the positioning mechanism 03 and collects the waste. The conveying mechanism 01 includes a worktable 11, a controller 12, and a conveyor belt 13. The bottom end of the worktable 11 is connected to the ground, the controller 12 is mounted on the worktable 11, and the conveyor belt 13 is mounted on the worktable 11. The guiding mechanism 02 includes two sets of first hydraulic cylinders 21, a connecting frame 22, and multiple sets of rubber rollers 23. The two sets of first hydraulic cylinders 21 are mounted on the worktable 11, the connecting frame 22 is mounted on the top of the two sets of first hydraulic cylinders 21, and the multiple sets of rubber rollers 23 are mounted on the connecting frame 22. Two sets of guiding mechanisms 02 are mounted opposite each other on the worktable 11; the positioning mechanism 03 includes a servo motor 31, a reducer 32, a rotating shaft 33, a support plate 34, a positioning block 35, and a connecting sleeve 36. The servo motor 31 is mounted on the worktable 11, the reducer 32 is mounted on the worktable 11, the rotating shaft 33 is rotatably mounted on the worktable 11 and connected to the reducer 32, the support plate 34 is mounted on the rotating shaft 33, the positioning block 35 is mounted on the support plate 34, and the connecting sleeve 36 is mounted on the support plate 34; it also includes The positioning block 35 is made of rubber; the grinding mechanism 04 includes four sets of guide columns 41, two sets of second hydraulic cylinders 42, a moving plate 43, a motor 44 and a grinding disc 45. The four sets of guide columns 41 are all installed on the worktable 11. The bottom ends of the two sets of second hydraulic cylinders 42 are connected to the top end of the worktable 11. The moving plate 43 is slidably installed on the four sets of guide columns 41 and the bottom end of the moving plate 43 is connected to the top end of the two sets of second hydraulic cylinders 42. The motor 44 is installed on the moving plate 43 and the grinding disc 45 is installed on the motor 44.During operation, the operator first places the regulating valve vertically on the conveyor belt 13. Based on the width of the regulating valve, the operator uses the controller 12 to control two sets of first hydraulic cylinders 21 to extend and push the connecting frame 22 and multiple sets of rubber rollers 23. This causes the two sets of guide mechanisms 02 to cooperate in clamping the regulating valve, keeping it vertical. The multiple sets of rubber rollers 23 facilitate forward movement of the regulating valve and provide guidance. The controller 12 controls the conveyor belt 13 to transport the regulating valve forward. The positioning block 35 abuts against the front end of the regulating valve for easy positioning and connection. The sleeve 36 is aligned with the interface of the regulating valve. Two sets of second hydraulic cylinders 42 pull the moving plate 43 down along the four sets of guide columns 41, so that the grinding disc 45 penetrates into the regulating valve. The motor 44 is started, and the motor 44 drives the grinding disc 45 to rotate and grind the sealing surface of the regulating valve. After grinding is completed, the grinding mechanism 04 is reset, and the servo motor 31 is started. The servo motor 31 drives the rotating shaft 33 to rotate through the reducer 32. The rotating shaft 33 rotates 180°, so that the support plate 34 and the positioning block 35 flip up. The controller 12 controls the conveyor belt 13 to start and continue to drive the regulating valve forward to convey and unload materials. Example 2

[0022] like Figures 1 to 5As shown, this utility model discloses a pneumatic regulating valve sealing surface grinding fixture, based on embodiment 1. The waste collection mechanism 05 includes an air pump 51, an air extraction pipe 52, a collection box 53, an air extraction hose 54, two sets of filter plates 55, and two sets of pull rings 56. The bottom end of the air pump 51 is connected to the top end of the workbench 11. The air extraction pipe 52 is installed on the air pump 51. The collection box 53 is installed on the air pump 51 and communicates with the inside of the air extraction pipe 52. The air extraction hose 54 is installed on the collection box 53 and communicates with the inside of the connecting sleeve 36. Both sets of filter plates 55 are slidably installed. During operation, the operator first places the regulating valve vertically on the conveyor belt 13. According to the width of the regulating valve, the operator controls the two sets of first hydraulic cylinders 21 to extend and push the connecting frame 22 and multiple sets of rubber rollers 23 through the controller 12, so that the two sets of guide mechanisms 02 cooperate to clamp the regulating valve and keep the regulating valve in a vertical state. The multiple sets of rubber rollers 23 facilitate the forward movement of the regulating valve and guide it. The controller 12 controls the conveyor belt 13. The regulating valve is conveyed forward, and the positioning block 35 abuts against the front end of the regulating valve for easy positioning. The connecting sleeve 36 is aligned with the interface of the regulating valve. Two sets of second hydraulic cylinders 42 pull the moving plate 43 down along the four sets of guide columns 41, so that the grinding disc 45 goes deep into the regulating valve. The motor 44 is started, and the motor 44 drives the grinding disc 45 to rotate and grind the sealing surface of the regulating valve. The air pump 51 is started, and the air pump 51 draws negative pressure into the collection box 53 through the air extraction pipe 52, so that the waste in the regulating valve is sucked into the collection box 53 through the connecting sleeve 36 and the air extraction hose 54. Two sets of filter plates 55 filter and collect the waste. After long-term use, the pull ring 56 is pulled out to remove the filter plate 55 for cleaning. After grinding is completed, the grinding mechanism 04 is reset, and the servo motor 31 is started. The servo motor 31 drives the rotating shaft 33 to rotate through the reducer 32. The rotating shaft 33 rotates 180°, so that the support plate 34 and the positioning block 35 flip up. The controller 12 controls the conveyor belt 13 to start and continue to drive the regulating valve forward to feed the material.

[0023] The servo motor 31, reducer 32, motor 44 and air pump 51 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A grinding fixture for the sealing surface of a pneumatic regulating valve, comprising a conveying mechanism (01); characterized in that, It also includes two sets of guiding mechanisms (02), positioning mechanism (03), grinding mechanism (04) and waste collection mechanism (05). The two sets of guiding mechanisms (02) are installed on the conveying mechanism (01) and guide the regulating valve. The positioning mechanism (03) is installed on the conveying mechanism (01) and positions the front end of the regulating valve. The grinding mechanism (04) is installed on the conveying mechanism (01) and grinds the sealing surface of the regulating valve. The waste collection mechanism (05) is installed on the positioning mechanism (03) and extracts and collects the waste.

2. The pneumatic regulating valve sealing surface grinding fixture as described in claim 1, characterized in that, The conveying mechanism (01) includes a workbench (11), a controller (12) and a conveyor belt (13). The bottom end of the workbench (11) is connected to the ground. The controller (12) is installed on the workbench (11) and the conveyor belt (13) is installed on the workbench (11).

3. The pneumatic regulating valve sealing surface grinding fixture as described in claim 2, characterized in that, The guide mechanism (02) includes two sets of first hydraulic cylinders (21), a connecting frame (22) and multiple sets of rubber rollers (23). The two sets of first hydraulic cylinders (21) are both mounted on the worktable (11). The connecting frame (22) is mounted on the top of the two sets of first hydraulic cylinders (21). The multiple sets of rubber rollers (23) are all mounted on the connecting frame (22). The two guide mechanisms (02) are mounted opposite each other on the worktable (11).

4. The pneumatic regulating valve sealing surface grinding fixture as described in claim 2, characterized in that, The positioning mechanism (03) includes a servo motor (31), a reducer (32), a rotating shaft (33), a support plate (34), a positioning block (35), and a connecting sleeve (36). The servo motor (31) is mounted on the worktable (11), the reducer (32) is mounted on the worktable (11), the rotating shaft (33) is rotatably mounted on the worktable (11) and connected to the reducer (32), the support plate (34) is mounted on the rotating shaft (33), the positioning block (35) is mounted on the support plate (34), and the connecting sleeve (36) is mounted on the support plate (34).

5. The pneumatic regulating valve sealing surface grinding fixture as described in claim 4, characterized in that, It also includes a positioning block (35) made of rubber.

6. The pneumatic regulating valve sealing surface grinding fixture as described in claim 2, characterized in that, The grinding mechanism (04) includes four sets of guide columns (41), two sets of second hydraulic cylinders (42), a moving plate (43), a motor (44), and a grinding disc (45). The four sets of guide columns (41) are all mounted on the worktable (11). The bottom ends of the two sets of second hydraulic cylinders (42) are connected to the top end of the worktable (11). The moving plate (43) is slidably mounted on the four sets of guide columns (41) and the bottom end of the moving plate (43) is connected to the top end of the two sets of second hydraulic cylinders (42). The motor (44) is mounted on the moving plate (43), and the grinding disc (45) is mounted on the motor (44).

7. The pneumatic regulating valve sealing surface grinding fixture as described in claim 4, characterized in that, The waste collection mechanism (05) includes an air pump (51), an air extraction pipe (52), a collection box (53), an air extraction hose (54), two sets of filter plates (55) and two sets of pull rings (56). The bottom end of the air pump (51) is connected to the top end of the workbench (11). The air extraction pipe (52) is installed on the air pump (51). The collection box (53) is installed on the air pump (51) and communicates with the inside of the air extraction pipe (52). The air extraction hose (54) is installed on the collection box (53) and communicates with the inside of the connecting sleeve (36). Both sets of filter plates (55) are slidably installed.

Images