Deburring guide pipe mold

Abstract

The utility model relates to the technical field of burr guide pipe production, in particular to a deburring guide pipe die which comprises a valve guide pipe and a guide pipe die used for producing the valve guide pipe, the guide pipe die comprises a pressing die punching table, an upper punching plate, a lower punching plate, a punch and a driving assembly, and the lower punching plate is installed on the pressing die punching table. The upper punching plate is located at the top of the lower punching plate, the punch comprises a punching core, the punching core is integrally connected and sleeved with a punching sleeve, channels are reserved in the inner circumferential wall of the punching sleeve and the outer circumferential wall of the punching core, a pressing convex ring is arranged below the punching sleeve and close to the top of the inner circumferential wall, and a pressing concave structure is formed between the outer circumferential wall of the pressing convex ring and the bottom of the punching sleeve. The reasonable boss structure is designed on the end face of the punch to solve the burr problem, when the punch makes contact with the valve guide pipe and conducts pressing, the boss structure of the pressing convex ring can ensure that the outer circle side and the inner hole side are sunken downwards when the end of the valve guide pipe is pressed, and therefore the smooth end face is formed, and burrs are effectively removed.

Description

Technical Field

[0001] The utility model relates to the technical field of burr catheter production, in particular to a deburring catheter mold. Background Art

[0002] The valve guide is an important component in the automobile engine. Its main function is to guide the movement of the valve and transfer heat.

[0003] Valve guides play a crucial role in automotive engines, ensuring the valves move along the correct path and transferring heat from the valve stem to the cylinder head. Valve guides operate at a high ambient temperature of approximately 200°C, and the valve stems are lubricated solely by splashing oil as they move through the guides.

[0004] At present, during the pressing production, when the valve guide pressing mold is pressed through the upper and lower structures, large burrs are present on the end face of the pressed guide, resulting in the current valve guide mold having a short service life, easy wear and the burrs on the guide end face affecting the use. Utility Model Content

[0005] The purpose of the present invention is to provide a deburring catheter mold to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A deburring catheter mold, comprising a valve catheter and a catheter mold for producing the valve catheter, the catheter mold comprising a pressing die punch, an upper punch plate, a lower punch plate, a punch, and a drive assembly, the lower punch plate being mounted on the pressing die punch plate, and the upper punch plate being located on top of the lower punch plate;

[0008] The punch includes a core, and an integrated connecting sleeve outside the core is provided with a punch sleeve. A channel is reserved between the inner circumferential wall of the punch sleeve and the outer circumferential wall of the core. A pressing convex ring is provided below the punch sleeve near the top of the inner circumferential wall, and a pressing recessed structure is formed between the outer circumferential wall of the pressing convex ring and the bottom of the punch sleeve.

[0009] As a preferred solution of the present invention, the bottom of the upper punch plate is connected to the top of the lower punch plate via a support seat, and the upper punch plate is provided with a pressing punching hole for producing the valve guide.

[0010] As a preferred solution of the present invention, the punch is located directly above the pressed hole, and the punch core diameter is smaller than or equal to the diameter of the through hole in the valve guide.

[0011] As a preferred solution of the present invention, the driving assembly includes a pressing drive cylinder and a fixed top plate, the outer wall of one side of the fixed top plate is connected to the pressing mold punch through a supporting vertical plate, the pressing drive cylinder is located on the top of the fixed top plate, and the bottom output end of the pressing drive cylinder is connected to the punch through a connecting piece.

[0012] As a preferred solution of the present invention, the diameter of the punch is the same as the diameter of the valve guide.

[0013] As a preferred solution of the present invention, the pressing drive cylinder is connected to an external air pump through a high-pressure air pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In response to the problems raised in the background art, the present application designs a reasonable "boss" structure on the end face of the punch to solve the burr problem. When the punch contacts and presses the valve guide, the pressing convex ring boss structure can ensure that the outer circle and inner hole sides of the end of the valve guide are concave downward when subjected to pressure, thereby forming a smooth end face and effectively removing burrs.

[0016] Due to the design of the pressed convex ring boss structure, the direct friction between the punch and the valve guide is reduced, the wear rate is reduced, and the service life of the mold is extended;

[0017] The extended mold life means the frequency of mold replacement is reduced, which in turn reduces production costs. In addition, since the burr problem is solved, the cost of subsequent processing and repair is also reduced;

[0018] The deburring guide mold can simultaneously complete the production and deburring processes of the valve guide during the pressing process, thereby improving production efficiency. By removing burrs, the end face of the valve guide becomes smoother, which helps to improve the performance and stability of the engine.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the production structure of the valve guide top of the utility model;

[0022] Figure 3 This is a schematic diagram of the punch structure of the utility model;

[0023] Figure 4 This is a cross-sectional view of the valve guide of the present utility model;

[0024] Figure 5 For this utility model Figure 4 Enlarged view of area A in the middle.

[0025] In the figure: 1. Valve guide; 2. Guide mold; 21. Pressing mold punch; 22. Upper punch plate; 221. Support seat; 222. Pressing punch; 23. Lower punch plate; 24. Punch; 241. Punch core; 242. Punch sleeve; 243. Channel; 244. Pressing convex ring; 245. Pressing recessed structure; 25. Pressing drive cylinder; 251. Fixed top plate; 252. Support vertical plate. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive. Example

[0027] See also Figure 1-5 The utility model provides a technical solution: a deburring catheter mold, including a valve catheter 1 and a catheter mold 2 for producing the valve catheter 1, the catheter mold 2 includes a pressing die punch 21, an upper punch plate 22, a lower punch plate 23, a punch 24 and a driving assembly, the lower punch plate 23 is installed on the pressing die punch 21, and the upper punch plate 22 is located on the top of the lower punch plate 23; the bottom of the upper punch plate 22 is connected to the top of the lower punch plate 23 through a support seat 221, and the upper punch plate 22 is provided with a punch for deburring the valve catheter 1 The pressing punch 222 is produced in the line; the punch 24 is located directly above the pressing punch 222, and the diameter of the punch core 241 is less than or equal to the diameter of the through hole in the valve guide 1; the driving assembly includes a pressing drive cylinder 25 and a fixed top plate 251, and the outer wall of one side of the fixed top plate 251 is connected to the pressing die punch 21 through the supporting vertical plate 252, the pressing drive cylinder 25 is located on the top of the fixed top plate 251, and the bottom output end of the pressing drive cylinder 25 is connected to the punch 24 through a connecting piece; the pressing drive cylinder 25 is connected to the external air pump through a high-pressure air pipe.

[0028] It should be noted that, in this embodiment, the bottom of the upper punch plate 22 is connected to the top of the lower punch plate 23 via the support seat 221. This structural design ensures the stability and centering of the upper and lower punch plates, and improves the overall stability of the mold. The upper punch plate 22 is provided with a pressing punching hole 222 for producing the valve guide 1. This design enables the valve guide to be accurately positioned during the production process, thereby improving production efficiency and product quality. The punch 24 is located directly above the pressing punching hole 222, and the diameter of the punch core 241 is less than or equal to the diameter of the through hole in the valve guide 1. This design ensures that the punch During operation, it can accurately enter the inner hole of the valve guide to avoid deviation and damage. The driving assembly includes a pressing driving cylinder 25 and a fixed top plate 251. The outer wall of one side of the fixed top plate 251 is connected to the pressing mold punch 21 through a supporting vertical plate 252. The pressing driving cylinder 25 is located on the top of the fixed top plate 251. This structural design provides a stable and powerful driving force to ensure the efficient operation of the mold. The pressing driving cylinder 25 is connected to the external air pump through a high-pressure air pipe. This design enables the driving cylinder to obtain a continuous and stable power source, ensuring the performance and efficiency of the mold during long-term operation.

[0029] See also Figure 1 、 2 3. The punch 24 includes a punch core 241. The external integral connecting sleeve of the punch core 241 is provided with a punch sleeve 242. A channel 243 is reserved between the inner circumferential wall of the punch sleeve 242 and the outer circumferential wall of the punch core 241. A pressing protrusion 244 is provided below the punch sleeve 242 near the top of the inner circumferential wall. A pressing recessed structure 245 is formed between the outer circumferential wall of the pressing protrusion 244 and the bottom of the punch sleeve 242. The diameter of the punch 24 is the same as that of the valve guide 1.

[0030] It should be noted that, in this embodiment, the punch 24 includes a punch core 241, and an integral connecting sleeve outside the punch core 241 is provided with a punch sleeve 242. A channel 243 is reserved between the inner circumferential wall of the punch sleeve 242 and the outer circumferential wall of the punch core 241. A pressing convex ring 244 is provided below the punch sleeve 242 near the top of the inner circumferential wall. A pressing concave structure 245 is formed between the outer circumferential wall of the pressing convex ring 244 and the bottom of the punch sleeve 242. A reasonable "boss" structure is designed on the end face of the punch 24 to solve the burr problem. When the punch 24 contacts and presses the valve guide 1, the boss structure of the pressing convex ring 244 can ensure that the end of the valve guide is concave on the outer circle side and the inner hole side when subjected to pressure, thereby forming a smooth end face and effectively removing burrs.

[0031] Furthermore, during the powder metallurgy production and pressing process of the valve guide 1, powder is added to the inside of the pressing punching hole 222, and the valve guide 1 is produced and pressed by the punch 24 structure in cooperation with the upper punch plate 22 and the lower punch plate 23. A pressing protrusion 244 is provided below the punch sleeve 242 near the top of the inner circumferential wall, and a pressing recessed structure 245 is formed between the outer circumferential wall of the pressing protrusion 244 and the bottom of the punch sleeve 242. This design can generate additional pressure during pressing to remove burrs on the end of the valve guide 1;

[0032] A reasonable "boss" structure is designed on the end face of the punch 24 to solve the burr problem. When the punch 24 contacts and presses the valve guide 1, the boss structure of the pressing convex ring 244 can ensure that the end of the valve guide is concave on the outer circle side and the inner hole side when under pressure, thereby forming a smooth end face and effectively removing burrs.

[0033] The working process of this utility model:

[0034] During use, during the powder metallurgy production and pressing process of the valve guide 1, powder is added to the inside of the pressing punching hole 222, and the valve guide 1 is produced and pressed through the punch 24 structure in cooperation with the upper punch plate 22 and the lower punch plate 23. A pressing convex ring 244 is provided below the punch sleeve 242 near the top of the inner circumferential wall, and a pressing recessed structure 245 is formed between the outer circumferential wall of the pressing convex ring 244 and the bottom of the punch sleeve 242. This design can generate additional pressure during pressing to remove burrs at the end of the valve guide 1; a reasonable "boss" structure is designed on the end face of the punch 24 to solve the burr problem. When the punch 24 contacts the valve guide 1 and presses it, the boss structure of the pressing convex ring 244 can ensure that the end of the valve guide is concave on the outer circle side and the inner hole side when under pressure, thereby forming a smooth end face and effectively removing burrs.

[0035] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A deburring catheter mold, comprising a valve catheter (1) and a catheter mold (2) for producing the valve catheter (1), characterized in that: The catheter mold (2) comprises a pressing mold punch (21), an upper punch plate (22), a lower punch plate (23), a punch (24) and a drive assembly, wherein the lower punch plate (23) is installed on the pressing mold punch (21), and the upper punch plate (22) is located on top of the lower punch plate (23); The punch (24) includes a punch core (241), an integral connecting sleeve outside the punch core (241) is provided with a punch sleeve (242), a channel (243) is reserved between the inner circumferential wall of the punch sleeve (242) and the outer circumferential wall of the punch core (241), a pressing convex ring (244) is provided below the punch sleeve (242) near the top of the inner circumferential wall, and a pressing concave structure (245) is formed between the outer circumferential wall of the pressing convex ring (244) and the bottom of the punch sleeve (242).

2. The deburring catheter mold according to claim 1, characterized in that: The bottom of the upper punch plate (22) is connected to the top of the lower punch plate (23) via a support seat (221). The upper punch plate (22) is provided with a pressing punching hole (222) for producing the valve guide (1).

3. The deburring catheter mold according to claim 1, characterized in that: The punch (24) is located directly above the pressed punch hole (222), and the diameter of the punch core (241) is smaller than or equal to the diameter of the inner through hole of the valve guide (1).

4. The deburring catheter mold according to claim 1, characterized in that: The driving assembly includes a pressing drive cylinder (25) and a fixed top plate (251), wherein an outer wall of one side of the fixed top plate (251) is connected to the pressing die punch (21) via a supporting vertical plate (252), the pressing drive cylinder (25) is located on the top of the fixed top plate (251), and the bottom output end of the pressing drive cylinder (25) is connected to the punch (24) via a connecting piece.

5. The deburring catheter mold according to claim 1, characterized in that: The diameter of the punch (24) is the same as the diameter of the valve guide (1).

6. The deburring catheter mold according to claim 4, characterized in that: The pressing drive cylinder (25) is connected to an external air pump via a high-pressure air pipe.

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