Sealing surface grinding and clamping device

Abstract

The utility model discloses a sealing surface grinding clamping device which comprises a base, a fixing sleeve, a lock shaft, a handle and a clamping sleeve, one side of the base is fixedly connected with the fixing sleeve through a bolt, the lock shaft is movably installed in the fixing sleeve, one end of the lock shaft is connected with the base through threads, the upper end of the lock shaft is connected with the handle through threads, and the handle is connected with the clamping sleeve through threads. A clamping sleeve is movably installed at the end, away from the base, of the lock shaft. The novel structure is adopted, the clamp capable of being installed on the grinding machine is arranged, the clamp can be used for installing and fixing the valve element and the valve seat, then the inner slope sealing face of the valve element and the outer slope sealing face of the valve seat can be ground through the grinding head on the grinding machine, the roughness of the ground sealing faces can meet the requirement, the sealing performance is good, and the service life is long. In addition, the valve element and the valve seat can be used in an interchangeable mode, the product quality is improved, the sealing performance is guaranteed, leakage is avoided, the defects of manual grinding and electric grinding are overcome, the manufacturing cost is low, and practicability is high.

Description

Technical Field

[0001] This utility model relates to a grinding device, specifically a sealing surface grinding clamping device. Background Technology

[0002] The sealing fit between the valve core and the valve seat is achieved through the mating of the inner bevel sealing surface of the valve core and the outer bevel sealing surface of the valve seat. Both surfaces require grinding during machining to achieve a good sealing fit. Currently, there are two main grinding methods: the first involves manually grinding the valve core and seat to achieve a seal; the second uses electric rotation while manually grinding the valve core or seat. The main drawback of the first manual grinding method is that the ground sealing surfaces often become misaligned after installation, leading to leakage. Furthermore, the surface roughness cannot meet requirements, and the valve core and seat can only be used independently. While the second electric grinding method achieves the required roughness, it also suffers from the same problem as manual grinding: misalignment after installation. Additionally, the valve core and seat can only be used independently. Therefore, we propose a sealing surface grinding clamping device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sealing surface grinding and clamping device, which solves the problem that when the inner slope sealing surface of the valve core and the outer slope sealing surface of the valve seat are ground manually or electrically, the grinding position will be misaligned after installation, and the valve core and valve seat can only be used independently.

[0004] To solve the above technical problems, this utility model provides the following technical solution: a sealing surface grinding clamping device, including a base, a fixed sleeve, a locking shaft, a handle and a clamping sleeve. The fixed sleeve is fixedly connected to one side of the base by bolts. The locking shaft is movably installed inside the fixed sleeve. One end of the locking shaft is connected to the base by a thread. The upper end of the locking shaft is connected to the handle by a thread. The clamping sleeve is movably installed at the end of the locking shaft away from the base.

[0005] Based on the above scheme, the upper end of the fixing sleeve is provided with a through groove, the handle is located in the through groove, and the width of the through groove is greater than the diameter of the handle. The inner port of the fixing sleeve away from the base is provided with an inner slope.

[0006] Based on the above scheme, multiple opening slots are evenly opened on the outer wall of the end of the locking shaft away from the base, and an outer slope is provided on the outer side of the end of the locking shaft away from the base, and the outer slope matches the inner slope.

[0007] Based on the above scheme, the clamping sleeve is provided in two types: clamping sleeve one and clamping sleeve two. Clamping sleeve one has an opening one, and clamping sleeve two has an opening two.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: A sealing surface grinding clamping device adopts a new structure and is equipped with a fixture that can be installed on a grinding machine. The fixture can fix the valve core and valve seat, and then the inner slope sealing surface of the valve core and the outer slope sealing surface of the valve seat can be ground by the grinding head on the grinding machine. The roughness of the ground sealing surface meets the requirements, and the sealing performance is good, without the problem of misalignment. Moreover, the valve core and valve seat can be used interchangeably, which improves the product quality, ensures the sealing performance, prevents leakage, solves the defects of manual and electric grinding, has low manufacturing cost, and is highly practical. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a sealing surface grinding clamping device according to the present invention, showing the installation of a clamping sleeve.

[0010] Figure 2 This is a schematic diagram of the structure of the sealing surface grinding clamping device of this utility model, which includes a clamping sleeve 2.

[0011] Figure 3 This is a schematic diagram of the fixing sleeve structure of a sealing surface grinding clamping device according to the present invention;

[0012] Figure 4 This is a schematic diagram of the locking shaft structure of a sealing surface grinding clamping device according to the present invention;

[0013] Figure 5 This is a right view of the clamping sleeve of a sealing surface grinding clamping device according to the present invention;

[0014] Figure 6 This is a right view of the clamping sleeve two of the sealing surface grinding clamping device of this utility model;

[0015] Figure 7 This is a diagram showing the state of installing and clamping a valve core in a sealing surface grinding and clamping device according to this utility model.

[0016] Figure 8 This is a diagram showing the installation and clamping of a valve seat in a sealing surface grinding and clamping device according to this utility model.

[0017] Figure 9 This is a diagram showing the contact state between the valve core and the grinding head on the grinding machine after the installation of the valve core in the sealing surface grinding clamping device of this utility model.

[0018] Figure 10 This is a diagram showing the contact state between the valve seat and the grinding head on the grinding machine after the installation of the sealing surface grinding clamping device of this utility model;

[0019] Figure 11 This is a diagram showing the state of a sealing surface grinding clamping device of this utility model being installed on a grinding machine to grind a valve core.

[0020] The numbers in the diagram are: 1-base, 2-fixed sleeve, 201-through groove, 202-inner slope, 3-locking shaft, 301-opening groove, 302-outer slope, 4-handle, 5-clamping sleeve one, 501-opening one, 6-clamping sleeve two, 601-opening two, 7-valve core, 8-valve seat, 9-grinding head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Reference Figures 1 to 11 It is known that a sealing surface grinding clamping device includes a base 1, a fixed sleeve 2, a locking shaft 3, a handle 4, and a clamping sleeve. The fixed sleeve 2 is fixedly connected to one side of the base 1 by bolts. The locking shaft 3 is movably installed inside the fixed sleeve 2. One end of the locking shaft 3 is connected to the base 1 by threads. The upper end of the locking shaft 3 is connected to the handle 4 by threads. The clamping sleeve is movably installed at the end of the locking shaft 3 away from the base 1. The clamping sleeve is designed to facilitate the locking and clamping of the valve core 7 and the valve seat 8.

[0024] The upper end of the fixed sleeve 2 has a through groove 201, and the handle 4 is located in the through groove 201. The width of the through groove 201 is larger than the diameter of the handle 4, so that the handle 4 can move within the through groove 201 when rotating the locking shaft 3. The inner port of the fixed sleeve 2 away from the base 1 has an inner slope 202. The outer wall of the locking shaft 3 away from the base 1 has multiple evenly spaced slots 301. The slots 301 facilitate the retraction and locking of the locking shaft to the clamping sleeve. The outer wall of the locking shaft 3 away from the base 1 has multiple evenly spaced slots 301. An outer ramp 302 is provided, which matches the inner ramp 202. The cooperation of the outer ramp 302 and the inner ramp 202 enables the locking shaft 3 to retract and lock the clamping sleeve at the opening groove 301. There are two types of clamping sleeves: clamping sleeve one 5 and clamping sleeve two 6. This design facilitates the clamping of valve core 7 and valve seat 8. Clamping sleeve one 5 has an opening 501, which facilitates the locking of valve core 7. Clamping sleeve two 6 has an opening 601, which facilitates the locking of valve seat 8.

[0025] The principle and advantages of this utility model: A sealing surface grinding clamping device, in use, first fixes the entire clamping device to the rotating spindle of the grinding machine through the base 1. When grinding the valve core 8, first turn the handle 4 counterclockwise, and the locking shaft 3 rotates counterclockwise. Since the locking shaft 3 is threadedly connected to the base 1, when the locking shaft 3 rotates counterclockwise, under the action of the thread, the locking shaft 3 will rotate and move away from the base 1. At this time, the inner slope 202 and the outer slope 302 will separate from each other. Then, a clamping sleeve 5 is placed at the end of the locking shaft 3, and the valve core 7 is placed in the clamping sleeve 5. After the valve core 7 is placed, turn the handle 4 clockwise, and the locking shaft 3 rotates. Under the action of the thread, the locking shaft 3 rotates and moves towards the base 1. The inner slope 202 and the outer slope 302 separate from each other. The slope 302 is in close contact. Because the locking shaft 3 has multiple open slots 301, the locking shaft 3 will retract inward to lock the clamping sleeve 5. The clamping sleeve 5 has an opening 501, and the clamping sleeve 5 will retract inward to clamp the valve core 7. Then, the grinding machine spindle is turned on, and the entire clamping device drives the valve core 7 to rotate. Then, the grinding head 9 on the grinding machine grinds the inclined sealing surface on the inner side of the valve core 7. When grinding the valve seat 8, the same clamping process is used for the valve core 7. In this way, the inclined sealing surfaces of the valve core 7 and the valve seat 8 can not only be ground well and the roughness can meet the requirements, but also have a high degree of concentricity. Furthermore, the valve core 7 and the valve seat 8 can be interchanged, which greatly improves the installation efficiency of the valve and ensures the sealing performance of the valve during use. The manufacturing cost is low and it is suitable for widespread use.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing surface grinding clamping device, comprising a base (1), a fixing sleeve (2), a locking shaft (3), a handle (4), and a clamping sleeve, characterized in that: A fixing sleeve (2) is fixedly connected to one side of the base (1) by bolts. A locking shaft (3) is movably installed inside the fixing sleeve (2). One end of the locking shaft (3) is connected to the base (1) by threads. A handle (4) is connected to the upper end of the locking shaft (3) by threads. A clamping sleeve is movably installed at the end of the locking shaft (3) away from the base (1).

2. The sealing surface grinding clamping device according to claim 1, characterized in that, The upper end of the fixed sleeve (2) is provided with a through groove (201), the handle (4) is located in the through groove (201), and the width of the through groove (201) is greater than the diameter of the handle (4). The inner port of the fixed sleeve (2) away from the base (1) is provided with an inner slope (202).

3. The sealing surface grinding clamping device according to claim 2, characterized in that, Multiple opening slots (301) are evenly provided on the outer wall of the end of the locking shaft (3) away from the base (1). An outer slope (302) is provided on the outer side of the end of the locking shaft (3) away from the base (1). The outer slope (302) matches the inner slope (202).

4. The sealing surface grinding clamping device according to claim 1, characterized in that, The clamping sleeve is provided in two types: clamping sleeve one (5) and clamping sleeve two (6). The clamping sleeve one (5) has an opening one (501), and the clamping sleeve two (6) has an opening two (601).

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