A fixing clamp for valve ball surface machining

Abstract

The utility model belongs to valve ball machining technical field especially relates to a kind of fixing clamp for valve ball surface machining, it include: base, for installation and connection on outside machining machine tool;Two clamping blocks, all can be movably arranged on base along X direction, and are connected and fixed by setting fastener and base, two clamping blocks between for placing the valve ball to be processed;Limiting piece, along X direction through two clamping blocks and with base connection fixed;Clamping block is provided with positioning lug, for and the flow channel mouth of valve ball inserts into and cooperates;The beneficial effects of the utility model are that two clamping blocks with positioning lug are set on base, the flow channel mouth of circular through-hole ball valve of positioning lug and 'L' type or 'V' type flow channel is inserted, the limiting fixing of ball valve is realized, and by setting limiting piece, on the one hand ensure that two clamping blocks can abut valve ball, on the other hand and can enhance the limiting effect to valve ball, the stable clamping of valve ball is realized.

Description

Technical Field

[0001] This utility model belongs to the field of valve ball processing technology, and in particular relates to a fixing fixture for valve ball surface processing. Background Technology

[0002] The valve ball of the valve seat generally involves many surface processing treatments during the production and processing, such as surface strengthening process and surface polishing process. When performing surface processing on the valve ball, it is usually necessary to use a fixing fixture to clamp and fix the valve ball on the processing machine tool to ensure processing accuracy, surface uniformity and process stability.

[0003] In the existing technology, most clamps used for round through-hole ball valves can only meet the clamping and fixing operations of straight-through ball valves, while they cannot achieve stable clamping operations for some round through-hole ball valves with "L" or "V" shaped internal flow channels. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a fixing fixture for machining the surface of a valve ball, thereby solving the above-mentioned technical problems.

[0005] In view of this, the present invention provides a fixing fixture for machining the surface of a valve ball, comprising:

[0006] The base is used for mounting and connecting to an external machine tool.

[0007] Two clamping blocks are mounted on the base and can be moved along the X direction. They are connected and fixed to the base by fasteners. The space between the two clamping blocks is used to place the valve ball to be processed.

[0008] The limiting component passes through the two clamping blocks along the X direction and is connected and fixed to the base;

[0009] The clamping block is equipped with a positioning protrusion, which is used to engage with the flow channel on the valve ball.

[0010] Furthermore, the clamping block also includes an abutting ramp, which is used to abut against the flow channel on the valve ball, and a positioning protrusion is disposed on the abutting ramp.

[0011] Furthermore, the positioning bump has a cylindrical structure.

[0012] Furthermore, the base is designed in an "L" shape and includes:

[0013] The mounting plate is used to connect and fix the device to an external machine tool.

[0014] A support base plate is connected to a fixed plate, and a guide rail is installed on the support base plate along the X direction;

[0015] The clamping block has a sliding groove that is adapted to connect with the guide rail.

[0016] Furthermore, the fixed plate and the supporting base plate are connected by fasteners.

[0017] Furthermore, a slot is provided on the fixed plate, and a plug is provided on one end of the support base plate along the X direction, with the plug and the slot being inserted into each other.

[0018] The beneficial effects of this utility model are:

[0019] This fixing fixture features two detachably connected clamping blocks on its base, each equipped with a positioning protrusion. These protrusions are fitted and inserted into the flow channels of a circular through-hole ball valve with an "L" or "V" shaped flow path, thus achieving a limiting and fixing effect on the ball valve. Furthermore, the inclusion of a limiting component ensures that the two clamping blocks abut against the valve ball and enhances the limiting effect on the valve ball, preventing its deflection and achieving a stable clamping of the valve ball. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention when clamping and fixing the valve ball;

[0022] The markings in the diagram are as follows: 1. Clamping block; 11. Positioning protrusion; 12. Abutting slope; 13. Slide groove; 2. Limiting component; 3. Fixing plate; 31. Slot; 4. Support base plate; 41. Guide rail; 42. Insertion block. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] Example 1:

[0026] This embodiment provides a fixing fixture for machining the surface of a valve ball, including:

[0027] The base is used for mounting and connecting to an external machine tool.

[0028] Two clamping blocks 1 are mounted on the base and can be moved along the X direction. They are connected and fixed to the base by fasteners. The valve ball to be processed is placed between the two clamping blocks 1.

[0029] Limiting member 2 passes through two clamping blocks 1 along the X direction and is connected and fixed to the base;

[0030] The clamping block 1 is provided with a positioning protrusion 11, which is used to connect and cooperate with the flow channel on the valve ball.

[0031] Furthermore, the base is designed in an "L" shape and includes:

[0032] Fixing plate 3 is used to connect and fix with external processing machine tools;

[0033] A support base plate 4 is connected to a fixed plate 3, and a guide rail 41 arranged along the X direction is installed on the support base plate 4.

[0034] The clamping block 1 has a sliding groove 13 that is adapted to connect with the guide rail 41.

[0035] In this technical solution, when the fixing fixture is used, the fixing plate 3 of the base is first connected and fixed to the processing machine tool by setting fasteners. Then, a clamping block 1 is moved to the fixing plate 3 through the connection and cooperation of the guide rail 41 and the slide groove 13, so that the clamping block 1 and the fixing plate 3 abut against each other. The clamping block 1 is connected to the supporting base plate 4 along the Z direction by setting fasteners, thereby realizing the installation and fixing of a clamping block 1 on the base.

[0036] Next, one flow channel of the valve ball is inserted into the positioning protrusion 11 on the clamping block 1, and then the other clamping block 1 is moved to the support base plate 4 through the guide rail 41 structure, and the positioning protrusion 11 of the clamping block 1 is inserted into the other flow channel of the valve ball to clamp the valve ball.

[0037] Then, the limiting member 2 is installed along the X-direction in the order of clamping block 1 - valve ball flow channel - clamping block 1. The limiting member 2 can be a screw, with the threaded end of the screw connected to the fixing plate 3, and the head of the screw abutting against the clamping block 1, so that the two clamping blocks 1 can clamp the valve ball and position the clamping block 1 away from the fixing plate 3. In addition, this structural design allows the limiting member 2 to limit the deflection of the valve ball, and also enhances the limiting effect in the Z-direction, improving stability. Finally, the clamping block 1 is also connected and fixed to the supporting base plate 4 by fasteners, thereby achieving stable clamping and positioning of the valve ball.

[0038] In summary, this fixing fixture uses two detachably connected clamping blocks 1 on the base, each with a positioning protrusion 11. The positioning protrusion 11 is fitted and inserted into the flow channel of the circular through-hole ball valve with an "L" or "V" shaped flow channel, thereby achieving limited and fixed positioning of the ball valve. Furthermore, the inclusion of a limiting component 2 ensures that the two clamping blocks 1 can abut against the valve ball and enhances the limiting effect on the valve ball, preventing deflection and achieving stable clamping of the valve ball.

[0039] Example 2:

[0040] This embodiment provides a fixing fixture for machining the surface of a valve ball, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] Furthermore, the clamping block 1 also includes an abutting slope 12, which is used to abut against the flow channel opening on the valve ball, and a positioning protrusion 11 is disposed on the abutting slope 12. By providing an abutting slope 12 on the clamping block 1 that is adapted to the flow channel opening of the valve ball, the contact area between the clamping block 1 and the valve ball is increased by using the abutting slope 12, ensuring the limiting firmness.

[0042] Furthermore, the positioning protrusion 11 has a cylindrical structure. This structural design ensures that the positioning protrusion 11 and the flow channel of the valve ball are properly fitted and inserted, while also reducing the material input of the positioning protrusion 11, thereby reducing production costs and improving economic efficiency.

[0043] Example 3:

[0044] This embodiment provides a fixing fixture for machining the surface of a valve ball, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Furthermore, the fixed plate 3 and the supporting base plate 4 are connected by fasteners. The fasteners pass through the ends of the fixed plate 3 and the supporting base plate 4 along the X direction. This structural design makes the fixed plate 3 and the supporting base plate 4 detachable, which is convenient for production and processing, and can also avoid the breakage caused by stress concentration between the fixed plate 3 and the supporting base plate 4 when they are connected as a whole.

[0046] Furthermore, a slot 31 is provided on the fixing plate 3, and an insert 42 is provided on one end of the supporting base plate 4 along the X direction. The insert 42 and the slot 31 are inserted into each other. This structural design plays a positioning role in the connection between the fixing plate 3 and the supporting base plate 4, enhancing stability and improving installation convenience. The embodiments of this application have been described above with reference to the accompanying drawings. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many forms under the guidance of this application without departing from the spirit and scope of protection of the claims, and all such forms are within the protection of this application.

Claims

1. A fixing fixture for machining the surface of a valve ball, characterized in that, include: A base for mounting and connecting to an external machine tool; Two clamping blocks (1) are provided on the base, both of which are movable along the X direction and are connected and fixed to the base by fasteners. The valve ball to be processed is placed between the two clamping blocks (1). Limiting member (2), the limiting member (2) passes through two clamping blocks (1) along the X direction and is connected and fixed to the base; The clamping block (1) is provided with a positioning protrusion (11), which is used to connect and cooperate with the flow channel on the valve ball.

2. The fixing fixture for machining the surface of a valve ball according to claim 1, characterized in that, The clamping block (1) also includes an abutting inclined surface (12), which is used to abut against the flow channel on the valve ball, and the positioning protrusion (11) is disposed on the abutting inclined surface (12).

3. A fixing fixture for machining the surface of a valve ball according to claim 2, characterized in that, The positioning protrusion (11) has a cylindrical structure.

4. A fixing fixture for machining the surface of a valve ball according to claim 1, characterized in that, The base is arranged in an "L" shape and includes: Fixing plate (3), the fixing plate (3) is used to connect and fix with external processing machine tools; A support base plate (4) is connected to a fixed plate (3), and a guide rail (41) is installed on the support base plate (4) along the X direction. The clamping block (1) is provided with a sliding groove (13) that is adapted to and connected to the guide rail (41).

5. A fixing fixture for machining the surface of a valve ball according to claim 4, characterized in that, The fixed plate (3) and the supporting base plate (4) are connected by fasteners.

6. A fixing fixture for machining the surface of a valve ball according to claim 5, characterized in that, The fixed plate (3) has a slot (31) and the support base plate (4) has a plug (42) at one end along the X direction. The plug (42) and the slot (31) are plugged in and engaged.

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