Valve element carbonitriding machining tool

Abstract

The utility model relates to the technical field of valve element machining, in particular to a valve element carbonitriding machining tool which comprises a first machining frame body, the outer wall of the first machining frame body is fixedly connected with a second machining frame body, the outer wall of the first machining frame body is fixedly connected with an air inlet pipeline, and the air inlet pipeline is communicated with the first machining frame body. According to the valve element carbonitriding machining tool, after a reaction is conducted for a period of time, an electric telescopic rod is started at the moment, a lifting block is driven to move upwards, a connecting rod is promoted to deviate to drive sliding blocks at the ends to be away from each other, and first clamping plates on the outer walls of the sliding blocks are promoted to be away from each other; when the first clamping plate is pressed, the abutting inclined plane of the outer wall of the first clamping plate continuously relieves the abutting state with the abutting inclined plane of the outer wall of the second clamping plate, and the reset spring rebounds to drive the second clamping plate to get close to each other to clamp the two sides of the other face of the valve element body.

Description

Technical Field

[0001] The utility model relates to the technical field of valve core processing, in particular to a valve core carbonitriding processing tool. Background Art

[0002] Carbonitriding or carbonitriding is a surface modification technology in metal processing, which can improve the surface hardness of the metal and reduce corrosion. This technology is usually used in the valve core processing process.

[0003] The existing valve core carbonitriding processing equipment on the market needs to diffuse carbon atoms and nitrogen atoms into the gaps of the metal lattice during the processing, that is, when the valve core body is heated to a critical state, carburizing gas is introduced to add ammonia to provide nitrogen atoms to make the surface of the valve core body carbonitrided. However, in this process, a clamping tool is usually used to limit the position of the valve core body to prevent the smaller valve core body from being displaced during the high-pressure gas blowing process. However, since the clamping will block the surface of the valve core body, the valve core body will be partially blocked, resulting in incomplete reaction. Utility Model Content

[0004] The utility model provides a valve core carbonitriding processing tool, which has the beneficial effect of being able to clamp and place shielding in multiple directions, and solves the problem mentioned in the above background technology that the surface of the valve core body will be blocked due to clamping, so the valve core body will be partially blocked and the reaction will be incomplete. To achieve the above purpose, the utility model provides the following technical solutions: a valve core carbonitriding processing tool, including a first processing frame, the outer wall of the first processing frame is fixedly connected to the second processing frame, the outer wall of the first processing frame is fixedly connected to the air intake pipe, and the air intake pipe is connected to the first processing frame;

[0005] The inner wall of the second processing frame is provided with a clamping mechanism for clamping the valve core body.

[0006] As an optional solution for a valve core carbonitriding processing tool described in the utility model, the clamping mechanism includes an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a lifting block, the outer wall of the lifting block is hinged with a connecting rod, and one end of the connecting rod is rotatably connected to a slider.

[0007] As an optional solution for a valve core carbonitriding processing tool described in the utility model, wherein: the outer walls of the second processing frame and the first processing frame are both provided with movable slide grooves, and the slider is slidably arranged in the movable slide grooves.

[0008] As an optional solution for the valve core carbonitriding processing tooling described in the utility model, wherein: the outer wall of the sliding block is fixedly connected to the first clamping plate, and two connecting rods are provided.

[0009] As an optional solution for a valve core carbonitriding processing tool described in the utility model, wherein: the inner wall of the first processing frame is fixedly connected to a return spring, one end of the return spring is fixedly connected to a second clamping plate, and two return springs are provided.

[0010] As an optional solution for the valve core carbonitriding processing tooling described in the utility model, wherein: the outer walls of the second clamping plate and the first clamping plate are both provided with conflicting inclined surfaces, and the conflicting inclined surfaces close to the second clamping plate conflict with the conflicting inclined surfaces close to the first clamping plate.

[0011] As an optional solution for the valve core carbonitriding processing tooling described in the utility model, wherein: the outer walls of the first clamping plate and the second clamping plate are fixedly connected with a third clamping plate for clamping the valve core body.

[0012] As an optional solution for the valve core carbonitriding processing tooling described in the utility model, wherein: the outer wall of the third clamping plate is provided with an arc groove, and the outer contour of the arc groove matches the outer contour of the valve core body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, when the sliders approach each other, the two first clamping plates fixed with their outer walls will approach each other, and the third clamping plates on the outer walls of the two first clamping plates will approach each other to clamp the valve core body in the valve core body opened on the outer walls of the third clamping plates.

[0015] In the utility model, after the reaction proceeds for a period of time, the electric telescopic rod is started, and the lifting block is moved upward, causing the connecting rod to deviate and the sliders at the ends to move away from each other, causing the first clamping plates on the outer walls of the sliders to move away from each other. At this time, during the process of the first clamping plates moving away, the interference slope of the outer wall of the first clamping plate continuously releases the interference state with the interference slope of the outer wall of the second clamping plate. At this time, the reset spring rebounds and brings the second clamping plates closer to each other, clamping the two sides of the other side of the valve core body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view structural cross-sectional view of the utility model;

[0018] Figure 3 It is a bottom-view structural cross-sectional view of the utility model;

[0019] Figure 4 It is a top view of the structure section of the utility model;

[0020] Figure 5 For the utility model Figure 4 A magnified view of the structure in the middle.

[0021] In the figure: 1. first processing frame; 2. second processing frame; 3. electric telescopic rod; 4. lifting block; 5. connecting rod; 6. slider; 7. movable slide; 8. air intake duct; 9. first clamping plate; 10. abutting inclined surface; 11. second clamping plate; 12. return spring; 13. third clamping plate; 14. valve core body; 15. arc groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1

[0024] This embodiment is intended to promote the solution of the problem that the existing valve core carbonitriding processing devices on the market need to diffuse carbon atoms and nitrogen atoms into the gaps of the metal lattice during the processing process, that is, when the valve core body 14 is heated to a critical state, a carburizing gas is introduced to add ammonia to provide nitrogen atoms, so that the surface of the valve core body 14 is carbonitrided. However, in this process, a clamping tool is usually used to limit the position of the valve core body 14 to prevent the small valve core body 14 from being displaced during the high-pressure gas blowing process. However, since the clamping will block the surface of the valve core body 14, the valve core body 14 will be partially blocked, resulting in an incomplete reaction. Please refer to Figure 1-Figure 4 A valve core carbonitriding processing tool comprises a first processing frame 1, the outer wall of the first processing frame 1 is fixedly connected to a second processing frame 2, the outer wall of the first processing frame 1 is fixedly connected to an air intake pipe 8, and the air intake pipe 8 is connected to the first processing frame 1;

[0025] The inner wall of the second processing frame 2 is provided with a clamping mechanism for clamping the valve core body 14;

[0026] The clamping mechanism includes an electric telescopic rod 3, the output end of the electric telescopic rod 3 is fixedly connected to a lifting block 4, the outer wall of the lifting block 4 is hinged with a connecting rod 5, and one end of the connecting rod 5 is rotatably connected to a slider 6;

[0027] The outer walls of the second processing frame 2 and the first processing frame 1 are both provided with a movable slide groove 7, and the slider 6 is slidably disposed in the movable slide groove 7;

[0028] The outer wall of the slider 6 is fixedly connected with a first clamping plate 9, and two connecting rods 5 are provided;

[0029] A return spring 12 is fixedly connected to the inner wall of the first processing frame 1, one end of the return spring 12 is fixedly connected to the second clamping plate 11, and two return springs 12 are provided;

[0030] The outer walls of the second clamping plate 11 and the first clamping plate 9 are both provided with a conflicting inclined surface 10, and the conflicting inclined surface 10 close to the second clamping plate 11 conflicts with the conflicting inclined surface 10 close to the first clamping plate 9. After a period of reaction, the electric telescopic rod 3 is started, and the lifting block 4 is moved upward, so that the connecting rod 5 is offset and the slider 6 with the end is moved away from each other, so that the first clamping plate 9 on the outer wall of the slider 6 is moved away from each other. At this time, during the process of the first clamping plate 9 moving away, the conflicting inclined surface 10 on the outer wall of the first clamping plate 9 continuously releases the conflicting state with the conflicting inclined surface 10 on the outer wall of the second clamping plate 11. At this time, the return spring 12 rebounds and brings the second clamping plate 11 closer to each other, clamping the other two sides of the valve core body 14;

[0031] The outer walls of the first clamping plate 9 and the second clamping plate 11 are fixedly connected with a third clamping plate 13 for clamping the valve core body 14;

[0032] An arc-shaped groove 15 is formed on the outer wall of the third clamping plate 13 , and the outer contour of the arc-shaped groove 15 matches the outer contour of the valve core body 14 .

[0033] In this embodiment: the existing valve core carbonitriding processing device on the market needs to diffuse carbon atoms and nitrogen atoms into the gaps of the metal lattice during the processing process, that is, when the valve core body 14 is heated to a critical state, the carburizing gas is introduced to add ammonia to provide nitrogen atoms, so that the surface of the valve core body 14 is carbonitrided. However, in this process, a clamping tool is usually used to limit the position of the valve core body 14 to prevent the small valve core body 14 from being displaced during the high-pressure gas blowing process. However, since the clamping will block the surface of the valve core body 14, the valve core body 14 will be partially blocked, resulting in incomplete reaction.

[0034] In order to prevent the above situation from happening, firstly, the high-temperature valve core body 14 to be processed is placed between the two first clamping plates 9, and then the electric telescopic rod 3 is started. After the electric telescopic rod 3 is started, the lifting block 4 at the output end moves downward. During the downward movement of the lifting block 4, the connecting rod 5 hinged to the outer wall is deviated along the hinge, so that the slider 6 connected to one end of the connecting rod 5 is rotated and slides close to each other along the moving slide groove 7;

[0035] The sliders 6 approach each other, bringing the two first clamping plates 9 fixed on their outer walls closer to each other, and the third clamping plates 13 on the outer walls of the two first clamping plates 9 approach each other to clamp the valve core body 14 in the valve core body 14 opened on the outer walls of the third clamping plates 13;

[0036] After the clamping is completed, the high-temperature carburizing gas is transported into the first processing frame 1 through the air intake pipe 8 to react with the surface of the valve core body 14;

[0037] After the reaction proceeds for a period of time, the electric telescopic rod 3 is started, and the lifting block 4 is moved upward, causing the connecting rod 5 to deviate and move the slider 6 at the end away from each other, causing the first clamping plate 9 on the outer wall of the slider 6 to move away from each other. At this time, during the process of the first clamping plate 9 moving away, the interference slope 10 of the outer wall of the first clamping plate 9 continuously releases the interference state with the interference slope 10 of the outer wall of the second clamping plate 11. At this time, the return spring 12 rebounds and moves the second clamping plate 11 closer to each other, clamping the other two sides of the valve core body 14.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A valve core carbonitriding processing tool, comprising a first processing frame (1), characterized in that: The outer wall of the first processing frame (1) is fixedly connected to the second processing frame (2), and the outer wall of the first processing frame (1) is fixedly connected to an air intake pipe (8), and the air intake pipe (8) is in communication with the first processing frame (1); The inner wall of the second processing frame (2) is provided with a clamping mechanism for clamping the valve core body (14).

2. A valve core carbonitriding tool according to claim 1, characterized in that: The clamping mechanism comprises an electric telescopic rod (3), the output end of the electric telescopic rod (3) is fixedly connected to a lifting block (4), the outer wall of the lifting block (4) is hinged with a connecting rod (5), and one end of the connecting rod (5) is rotatably connected to a sliding block (6).

3. A valve core carbonitriding tool according to claim 2, characterized in that: The outer walls of the second processing frame (2) and the first processing frame (1) are both provided with movable sliding grooves (7), and the sliding block (6) is slidably arranged in the movable sliding grooves (7).

4. A valve core carbonitriding tool according to claim 3, characterized in that: The outer wall of the sliding block (6) is fixedly connected with a first clamping plate (9), and two connecting rods (5) are provided.

5. A valve core carbonitriding tool according to claim 4, characterized in that: A return spring (12) is fixedly connected to the inner wall of the first processing frame (1), one end of the return spring (12) is fixedly connected to a second clamping plate (11), and two return springs (12) are provided.

6. A valve core carbonitriding tool according to claim 5, characterized in that: The outer walls of the second clamping plate (11) and the first clamping plate (9) are both provided with abutment inclined surfaces (10), and the abutment inclined surface (10) close to the second clamping plate (11) and the abutment inclined surface (10) close to the first clamping plate (9) abut against each other.

7. A valve core carbonitriding tool according to claim 6, characterized in that: The outer walls of the first clamping plate (9) and the second clamping plate (11) are both fixedly connected with a third clamping plate (13) for clamping the valve core body (14).

8. The valve core carbonitriding tool according to claim 7, characterized in that: An arc-shaped groove (15) is formed on the outer wall of the third clamping plate (13), and the outer contour of the arc-shaped groove (15) matches the outer contour of the valve core body (14).

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