Valve seat production device

Abstract

The utility model discloses a valve seat production device, which belongs to the technical field of valves and comprises a supporting seat and a grinding fluid filter, the grinding fluid filter is mounted above the supporting seat, a bearing and rotating seat is fixedly mounted right above the supporting seat, and an outer turntable and an inner turntable are rotatably connected above the bearing and rotating seat through turntables by taking a circle center as a central point. A grinding tool chuck is installed on the inner side of the upper portion of the outer rotating disc through a servo electric cylinder, a center column is fixedly installed on the upper portion of the inner rotating disc, a motor is fixedly installed on the outer side of the center column, and a workpiece chuck is fixedly installed at the output end of the motor. Three sets of grinding tools can be clamped into the grinding tool chucks, according to the sequence of the rough grinding tool, the fine grinding tool and the fine grinding tool, the three grinding tools can play different grinding advantages, the four sets of workpiece chucks can clamp workpieces for rough grinding, fine grinding and fine grinding, the remaining workpiece chuck carries out feeding and discharging, and therefore production efficiency can be improved, and production cost can be reduced. And meanwhile, the precision can be improved through graded grinding.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, in particular to a valve seat production device. Background Art

[0002] The removable surface parts in the valve are used to support the fully closed position of the valve core and form a sealing pair. In order to improve the sealing performance, the previous process directly cuts and grinds the end face of the valve seat to improve the accuracy, so that the contact surface between the valve seat and the valve core is mirror-like; and with the advancement of materials science, it is now necessary to perform surfacing welding on the end face of the valve seat. Using the surfacing welding process, a new wear-resistant and anti-corrosion alloy surface is added to the surface of the valve seat. Therefore, the surfacing welding material needs to be polished to a mirror surface;

[0003] The existing grinding process generally uses a grinding tool for grinding. When grinding the alloy layer after surfacing, due to the high hardness of the new alloy, a lot of time is wasted on the grinding tool. To address this problem, improvements need to be made to increase the efficiency of grinding. At the same time, when grinding the workpiece, the grinding fluid itself does not have much effect. However, when the grinding fluid carries grinding metal chips, it seeps into the gap of the turntable and affects the turntable. Therefore, the existing sealing structure needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a valve seat production device in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: a valve seat production device, including a support seat and a grinding fluid filter, a grinding fluid filter is installed on the upper side of the support seat, a bearing and rotating seat is fixedly installed directly above the support seat, and an outer rotating disk and an inner rotating disk are rotatably connected above the bearing and rotating seat with the center of the circle as the center point through a rotating disk;

[0006] A grinding tool chuck is installed on the inner side of the upper part of the outer turntable through a servo electric cylinder, a center column is fixedly installed on the upper part of the inner turntable, a motor is fixedly installed on the outer side of the center column, and a workpiece chuck is fixedly installed on the output end of the motor;

[0007] The inner and outer edges of the outer turntable and the inner turntable are respectively fixedly mounted with a second turning surface and a first turning surface, and the connection between the outer turntable and the inner turntable and the bearing seat is provided with a sealing mechanism to prevent the infiltration of grinding fluid;

[0008] The sealing mechanism includes a guide groove, a sealing ring, an airbag, a clamp, a limit clamping groove, and a sealing clamping groove;

[0009] The outer turntable and the inner turntable are both embedded with limit slots near the second flip surface and below the first flip surface, and a guide groove is integrated above the bearing seat and between the outer turntable and the inner turntable, and both sides of the upper edge of the guide groove are embedded with limit slots;

[0010] The upper edge and the lower edge of the sealing ring are respectively integrated with a clamping head and an air bag.

[0011] The clamping head and the airbag are movably fitted with the limiting clamping slot and the sealing clamping slot respectively. The clamping head is arranged in a "C" shape, and balls are embedded on the upper and lower sides of the clamping head.

[0012] Wherein, the guide groove is collected to the liquid inlet of the grinding fluid filter through a pipeline.

[0013] Wherein, a bamboo tube is installed above the bearing and rotating seat, and the bamboo tube is connected to the liquid outlet pipe of the grinding fluid filter.

[0014] Among them, there are four groups of motors and workpiece chucks, which are arranged in an array, and there are three groups of servo electric cylinders and mold chucks.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. In the utility model, three sets of grinding tools can be clamped into the grinding tool chuck. According to the order of coarse grinding tool, fine grinding tool and fine grinding tool, the three grinding tools can play different grinding advantages. There are four groups of workpiece chucks that can clamp the workpiece for coarse grinding, fine grinding and fine grinding. The remaining workpiece chuck is used for loading and unloading, thereby improving production efficiency. At the same time, graded grinding can improve accuracy.

[0017] 2. In the utility model, the airbag fits with the sealing slot to achieve a sealing effect. The clamping head and the airbag are movably fitted with the limit slot and the sealing slot respectively. The clamping head is set in a "C" shape, and balls are embedded on the upper and lower parts of the clamping head. The balls can ensure that the outer turntable and the inner turntable will not get stuck when rotating, and at the same time support the sealing ring to achieve the purpose of sealing the grinding fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial top view of the structure of the utility model;

[0020] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 4 This is a schematic diagram showing the three-dimensional structure of the sealing ring in the utility model.

[0022] Markings in the figure: 1. Support seat; 101. Grinding fluid filter; 2. Bearing seat; 201. Guide groove; 3. Outer turntable; 301. Servo electric cylinder; 302. Grinding tool chuck; 4. Inner turntable; 401. Center column; 402. Motor; 403. Workpiece chuck; 5. First flip side; 6. Second flip side; 7. Sealing ring; 701. Airbag; 702. Chuck; 8. Limiting slot; 801. Sealing slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the utility model:

[0025] Reference Figure 1-4 , a valve seat production device, comprising a support seat 1 and a grinding fluid filter 101, wherein the grinding fluid filter 101 is installed on the upper side of the support seat 1, a bearing and rotating seat 2 is fixedly installed directly above the support seat 1, and an outer rotating disc 3 and an inner rotating disc 4 are connected to the upper side of the bearing and rotating seat 2 by a rotating disc with the center of a circle as the center point;

[0026] A mold chuck 302 is installed on the inner side of the upper part of the outer turntable 3 through a servo electric cylinder 301, a center column 401 is fixedly installed on the upper part of the inner turntable 4, a motor 402 is fixedly installed on the outer side of the center column 401, and a workpiece chuck 403 is fixedly installed on the output end of the motor 402;

[0027] The inner and outer edges of the outer turntable 3 and the inner turntable 4 are respectively fixedly mounted with a second turning surface 6 and a first turning surface 5, and the connection between the outer turntable 3 and the inner turntable 4 and the bearing seat 2 is provided with a sealing mechanism to prevent the infiltration of grinding fluid;

[0028] The sealing mechanism includes a guide groove 201, a sealing ring 7, an airbag 701, a clamp head 702, a limit groove 8, and a sealing groove 801;

[0029] The outer turntable 3 and the inner turntable 4 are both embedded with limit slots 8 near the second flip surface 6 and the lower part of the first flip surface 5. A guide slot 201 is integrated above the rotating seat 2 and between the outer turntable 3 and the inner turntable 4. The limit slots 8 are embedded on both sides of the upper edge of the guide slot 201.

[0030] The upper and lower edges of the sealing ring 7 are respectively integrated with a clamping head 702 and an airbag 701. The airbag 701 is matched with a valve core, and the airbag 701 can be inflated by the valve core, so that the airbag 701 is matched with the sealing slot 801 to achieve a sealing effect. The clamping head 702 and the airbag 701 are movably matched with the limiting slot 8 and the sealing slot 801 respectively. The clamping head 702 is set in a "C" shape, and balls are embedded in the upper and lower surfaces of the clamping head 702. The balls can ensure that the outer turntable 3 and the inner turntable 4 will not get stuck when they are rotating, and at the same time support the sealing ring 7 to achieve the purpose of sealing the grinding fluid.

[0031] Furthermore, the guide groove 201 is collected to the liquid inlet of the grinding fluid filter 101 through a pipeline. A bamboo tube is installed above the bearing seat 2, and the bamboo tube is connected to the liquid outlet pipe of the grinding fluid filter 101. After the sealing ring 7 isolates the grinding fluid, it flows into the grinding fluid filter 101 through the guide groove 201, and impurities such as metal particles are filtered out and reused.

[0032] Furthermore, there are four groups of motors 402 and workpiece chucks 403, which are arranged in an array. There are three groups of servo electric cylinders 301 and grinding tool chucks 302. Three sets of grinding tools can be clamped into the grinding tool chucks 302. In the order of coarse grinding tools, fine grinding tools, and fine grinding tools, there are four groups of workpiece chucks 403 that can clamp the workpiece for coarse grinding, fine grinding, and fine grinding. The remaining workpiece chuck 403 is used for loading and unloading, thereby improving production efficiency. At the same time, graded grinding can improve accuracy.

[0033] Furthermore, the driving units supporting the servo electric cylinder 301, the motor 402, the outer turntable 3 and the inner turntable 4 are all connected to the external power supply through the control panel.

[0034] Working principle: First, the three sets of grinding tools can be clamped into the grinding tool chuck 302. In the order of coarse grinding tool, fine grinding tool and fine grinding tool, the workpiece chuck 403 has four groups that can clamp the workpiece for coarse grinding, fine grinding and fine grinding. The remaining workpiece chuck 403 is used for loading and unloading, thereby improving production efficiency. At the same time, graded grinding can improve accuracy. Then, the upper and lower edges of the sealing ring 7 are respectively integrated with a clamping head 702 and an airbag 701. The airbag 701 is equipped with a valve core. The airbag 701 can be inflated by the valve core, so that the airbag 701 fits with the sealing groove 801 to achieve a sealing effect. As a result, the clamping head 702 and the airbag 701 are movably fitted with the limiting clamping slot 8 and the sealing clamping slot 801 respectively. The clamping head 702 is set in a "C" shape, and balls are embedded on the upper and lower sides of the clamping head 702. The balls can ensure that the outer turntable 3 and the inner turntable 4 will not get stuck when they are rotating. At the same time, the sealing ring 7 is supported to achieve the purpose of sealing the grinding fluid. After the sealing ring 7 isolates the grinding fluid, it flows into the grinding fluid filter 101 through the guide groove 201. A bamboo tube is installed above the bearing seat 2. The bamboo tube is connected to the liquid outlet pipe of the grinding fluid filter 101 to filter impurities such as metal particles and reuse them.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve seat production device, comprising a support seat (1) and a grinding fluid filter (101), wherein the grinding fluid filter (101) is installed on the upper side of the support seat (1), characterized in that: A bearing and rotating seat (2) is fixedly installed directly above the support seat (1); an outer rotating disc (3) and an inner rotating disc (4) are rotatably connected above the bearing and rotating seat (2) via a rotating disc with the center of the circle as the center point; A grinding tool chuck (302) is installed on the inner side of the upper part of the outer turntable (3) via a servo electric cylinder (301), a center column (401) is fixedly installed on the upper part of the inner turntable (4), a motor (402) is fixedly installed on the outer side of the center column (401), and a workpiece chuck (403) is fixedly installed on the output end of the motor (402); The inner and outer edges of the outer rotating disc (3) and the inner rotating disc (4) are respectively fixedly mounted with a second turning surface (6) and a first turning surface (5), and the connection points between the outer rotating disc (3) and the inner rotating disc (4) and the bearing seat (2) are both provided with sealing mechanisms to prevent the infiltration of grinding fluid.

2. The valve seat production device according to claim 1, characterized in that: The sealing mechanism comprises a guide groove (201), a sealing ring (7), an airbag (701), a clamping head (702), a limit clamping groove (8), and a sealing clamping groove (801); The outer turntable (3) and the inner turntable (4) are both embedded with limit slots (8) near the second flip surface (6) and below the first flip surface (5); a guide slot (201) is integrally provided above the rotating seat (2) and between the outer turntable (3) and the inner turntable (4); and limit slots (8) are embedded on both sides of the upper edge of the guide slot (201); The upper edge and the lower edge of the sealing ring (7) are respectively provided with a clamping head (702) and an air bag (701) in an integrated manner.

3. The valve seat production device according to claim 2, characterized in that: The clamping head (702) and the airbag (701) are movably engaged with the limiting clamping slot (8) and the sealing clamping slot (801) respectively.

4. The valve seat production device according to claim 2, characterized in that: The clamping head (702) is arranged in a "C" shape, and balls are embedded on the upper and lower surfaces of the clamping head (702).

5. The valve seat production device according to claim 2, characterized in that: The guide groove (201) is collected to the liquid inlet of the grinding fluid filter (101) through a pipeline.

6. The valve seat production device according to claim 1, characterized in that: A bamboo tube is installed above the bearing seat (2), and the bamboo tube is connected to the liquid outlet pipe of the grinding liquid filter (101).

7. The valve seat production device according to claim 1, characterized in that: The motor (402) and the workpiece chuck (403) are provided in four groups in an array, and the servo electric cylinder (301) and the mold chuck (302) are provided in three groups.

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