Active lubrication type circular die tool

Abstract

The utility model relates to the technical field of circular die tools, and discloses an active lubrication type circular die tool which comprises a circular die body, a driving assembly and a lubrication assembly, a step face is arranged at the bottom of a cylinder of the driving assembly, and the circular die body is arranged on the step face and detachably connected with the step face through a positioning hole, a threaded hole and a screw. And an insertion hole in the outer side wall of the barrel is matched with the driving rod to provide rotating power for machining. The lubricating assembly comprises an inner cylinder and an outer cylinder which are mutually nested, an annular containing cavity formed by the inner cylinder and the outer cylinder injects oil through an oil inlet in the top of the outer cylinder, and the cutting area of the circular die body is actively lubricated through a liquid leakage hole of the inner cylinder. By optimizing the structural design, efficient active lubrication is achieved, the machining efficiency and the product quality are improved, and the service life of the circular die is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of circular die tools, specifically an active lubrication type circular die tool. Background Technology

[0002] In the field of machining, round dies are commonly used tools for machining or correcting external threads. Traditional round dies, lacking effective lubrication, generate significant heat during high-speed tapping when machining studs with large diameters and long thread sections, causing the die temperature to rise. This not only reduces the die's strength and shortens its service life but also affects the quality of the machined product, leading to problems such as increased thread surface roughness and decreased dimensional accuracy. Furthermore, traditional round dies typically require external lubrication, which struggles to ensure even and continuous lubrication to the cutting area, resulting in poor lubrication. Therefore, a new type of actively lubricated round die tool is needed to address these issues.

[0003] Chinese patent CN203765113U provides an active lubrication type circular die tool, which has an inner cylinder and an outer cylinder nested together. The inner wall of the inner cylinder is provided with a threaded die, and the outer wall of the inner cylinder is provided with a first annular groove that is recessed inward and has a semi-circular cross-section. The inner wall of the outer cylinder is provided with a second annular groove that is recessed outward and has a semi-circular cross-section. The first annular groove and the second annular groove form an annular receiving cavity. The inner wall of the inner cylinder is provided with a plurality of oil leakage holes that communicate with the annular receiving cavity, and the side wall of the outer cylinder is provided with an oil inlet pipe that communicates with the annular receiving cavity.

[0004] The above-mentioned technical solution has oil leakage holes and threaded dies located in the same area, which affect each other, impacting both lubrication and thread machining. Therefore, a new type of active lubrication round die tool is needed to solve the above problems. Utility Model Content

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An active lubrication type circular die tool includes a circular die body and a drive assembly. The drive assembly includes a cylindrical body with a stepped surface at the bottom. The circular die body is disposed on the upper part of the stepped surface and detachably connected to the cylindrical body. A plurality of insertion holes are symmetrically arranged on the outer side wall of the cylindrical body, and a drive rod is inserted into the insertion holes. A lubrication assembly is also disposed above the circular die body. The lubrication assembly includes an inner cylinder and an outer cylinder nested together to form an annular receiving cavity. A plurality of leakage holes are provided on the inner wall of the inner cylinder, and an oil inlet is provided on the top of the outer cylinder, which communicates with the receiving cavity.

[0007] Preferably, the outer wall of the circular die body is provided with a plurality of positioning holes, and the side wall of the cylinder is provided with threaded holes corresponding to the positions of the positioning holes. The circular die body and the cylinder are connected by screws passing through the threaded holes and the positioning holes.

[0008] Preferably, a guide strip is vertically provided on the inner side wall of the cylinder, and a groove is provided on the outer side wall of the circular tooth body corresponding to the guide strip.

[0009] Preferably, a tray is provided on the outer side of the bottom of the inner cylinder, and a second groove is provided on the outer side wall of the tray corresponding to the guide strip, and the outer cylinder is provided on the upper surface of the tray.

[0010] Preferably, the bottom surface of the outer cylinder is provided with an annular groove one, the top surface of the tray is provided with an annular groove two corresponding to the annular groove one, and a sealing ring one is provided between the annular groove one and the annular groove two.

[0011] Preferably, the outer cylinder includes a lower cylinder and an upper cover plate. The upper cover plate is disposed at the upper end of the lower cylinder and has an annular structure with internal threads on its inner sidewall. The top of the inner cylinder is provided with external threads. The upper cover plate is threadedly connected to the inner cylinder, and the oil inlet is disposed on the upper cover plate.

[0012] Preferably, a sealing gasket is provided between the upper cover plate and the lower cylinder.

[0013] Preferably, a water trough is provided on the outer side of the cylinder, and a through hole is provided on the side wall of the water trough corresponding to the position of the insertion hole, and a plurality of sealing rings are provided in the through hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention achieves active lubrication of the round die during machining by setting up a special lubrication component. Compared with traditional external lubrication methods and lubrication methods that place the oil leakage hole in the same area as the die, the lubricating oil can reach the cutting area more evenly and in a timely manner, improving the lubrication effect and ensuring the machining quality. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Partial schematic diagram at point A in the middle;

[0018] Figure 3 This is a top view of the drive component of this utility model;

[0019] Figure 4 for Figure 3 Partial schematic diagram at point B in the middle;

[0020] Figure 5 This is a top view of the lubrication component of this utility model;

[0021] Figure 6 This is a top view of the circular plate tooth body of this utility model.

[0022] In the diagram: 1. Round die body; 2. Cylinder; 21. Stepped surface; 22. Insertion hole; 23. Threaded hole; 24. Guide strip; 25. Water groove; 26. Through hole; 3. Drive rod; 4. Inner cylinder; 41. Leakage hole; 5. Outer cylinder; 51. Oil inlet; 52. Annular groove one; 53. Lower cylinder; 54. Upper cover plate; 6. Annular receiving cavity; 7. Screw; 8. Tray; 81. Slide groove two; 82. Annular groove two; 9. Sealing ring one; 10. Sealing gasket; 11. Positioning hole; 12. Slide groove one; 13. Sealing ring two. Detailed Implementation

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

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0026] like Figure 1-6As shown, this embodiment provides an actively lubricated circular die tool, including a circular die body 1 and a drive assembly. The bottom of the drive assembly's cylindrical body 2 has a stepped surface 21, and the circular die body 1 is located on the upper part of the stepped surface 21 and is detachably connected to the cylindrical body 2. This design facilitates the installation and replacement of the circular die body 1. When the circular die body 1 wears out, it can be quickly disassembled and replaced with a new one, improving work efficiency. Several insertion holes 22 are symmetrically arranged on the outer wall of the cylindrical body 2. A drive rod 3 is inserted into each insertion hole 22. The drive rod 3 can conveniently apply rotational force to the cylindrical body 2 and the circular die body 1, driving the circular die body 1 to perform thread machining.

[0027] In this embodiment, a lubrication assembly is provided above the circular die body 1. The lubrication assembly includes an inner cylinder 4 and an outer cylinder 5 nested together, forming an annular receiving cavity 6 for storing lubricating oil. The inner wall of the inner cylinder 4 is provided with several leakage holes 41, and the top of the outer cylinder 5 is provided with an oil inlet 51, which communicates with the receiving cavity 6. During operation, lubricating oil is injected into the receiving cavity 6 through the oil inlet 51, and then permeates into the cutting area of ​​the circular die body 1 through the leakage holes 41, achieving active lubrication.

[0028] To further enhance the stability of the connection between the die body 1 and the cylinder 2, several positioning holes 11 are provided on the outer wall of the die body 1, and threaded holes 23 are provided on the side wall of the cylinder 2 corresponding to the positions of the positioning holes 11. The die body 1 and the cylinder 2 are connected by screws 7 passing through the threaded holes 23 and the positioning holes 11. This connection method not only ensures the stable installation of the die body 1 on the cylinder 2, but also ensures that the die body 1 will not shift during the machining process, thus guaranteeing machining accuracy.

[0029] In this embodiment, a guide strip 24 is vertically arranged on the inner sidewall of the cylinder 2, and a groove 12 is provided on the outer sidewall of the round die body 1 corresponding to the guide strip 24. The cooperation between the guide strip 24 and the groove 12 plays a guiding role when the round die body 1 is installed on the cylinder 2, which facilitates the installation. At the same time, it can also restrict the circumferential rotation of the round die body 1 on the cylinder 2, further improving the stability of the connection.

[0030] In this embodiment, a tray 8 is provided on the outer side of the bottom of the inner cylinder 4, and a second groove 81 is provided on the outer wall of the tray 8 corresponding to the guide strip 24. The outer cylinder 5 is disposed on the upper surface of the tray 8. The design of the tray 8 provides support for the outer cylinder 5. At the same time, the cooperation between the second groove 81 and the guide strip 24 allows the inner cylinder 4 and the outer cylinder 5 to be positioned more accurately during installation, and to a certain extent ensures the overall stability of the lubrication assembly.

[0031] In this embodiment, an annular groove 52 is provided on the bottom surface of the outer cylinder 5, and an annular groove 82 is provided on the top surface of the tray 8 at a position corresponding to the annular groove 52. A sealing ring 9 is provided between the annular groove 52 and the annular groove 82. This structure can effectively prevent lubricating oil from leaking between the outer cylinder 5 and the tray 8, ensuring the effective storage and normal flow of lubricating oil in the receiving cavity 6.

[0032] In this embodiment, the outer cylinder 5 consists of a lower cylinder portion 53 and an upper cover plate 54. The upper cover plate 54 is located at the upper end of the lower cylinder portion 53 and has an annular structure. It is threadedly connected to the top of the inner cylinder 4, and the oil inlet 51 is located on the upper cover plate 54. This structural design can press the lower cylinder portion 53 against the tray 8 to improve the sealing effect and facilitate the maintenance and cleaning of the lubrication assembly. When it is necessary to clean or inspect the receiving cavity 6, the upper cover plate 54 can be easily removed. At the same time, a sealing gasket 10 is provided between the upper cover plate 54 and the lower cylinder portion 53 to further enhance the sealing performance of the outer cylinder 5 and prevent lubricating oil leakage.

[0033] In this embodiment, a water tank 25 is provided on the outer side of the cylinder 2, and a through hole 26 is provided on the side wall of the water tank 25 at the position corresponding to the insertion hole 22. Several sealing rings 13 are provided in the through hole 26. Water is filled into the water tank 25 to achieve liquid cooling. The sealing rings 13 prevent the liquid in the water tank 25 from flowing out through the insertion hole 22.

[0034] The working principle of the above technical solution is as follows:

[0035] Installation process: When installing the round die tool, first align the groove 12 on the outer side wall of the round die body 1 with the guide strip 24 on the inner side wall of the cylinder 2. Then, slowly place the round die body 1 onto the stepped surface 21 of the cylinder 2 along the guide strip 24, aligning the positioning hole 11 on the round die body 1 with the threaded hole 23 on the side wall of the cylinder 2. Then, fix the round die body 1 onto the cylinder 2 by passing the screw 7 through the threaded hole 23 and the positioning hole 11. Next, install the inner cylinder 4 in a suitable position by engaging the guide strip 24 with the groove 81. Then, place the outer cylinder 5 on the upper surface of the tray 8, aligning the annular groove 52 on the bottom surface of the outer cylinder 5 with the annular groove 82 on the top surface of the tray 8, and install the sealing ring 9 between them. After that, connect the upper cover plate 54 to the top of the inner cylinder 4 by threads, and install the sealing gasket 10 between the upper cover plate 54 and the lower cylinder 53. Finally, insert the drive rod 3 into the insertion hole 22 on the outer wall of the cylinder 2 to complete the installation of the entire round die tool.

[0036] Working process: Before thread machining, an appropriate amount of lubricating oil is injected into the annular cavity 6 formed by the inner cylinder 4 and the outer cylinder 5 through the oil inlet 51. When thread machining is required, the operator holds the drive rod 3 and applies rotational force to the cylinder 2 and the die body 1, causing the die body 1 to rotate and perform thread machining. During the machining process, the lubricating oil in the cavity 6 permeates into the cutting area of ​​the die body 1 through the drain hole 41 on the inner wall of the inner cylinder 4, lubricating the contact area between the die body 1 and the workpiece. At the same time, coolant can be added to the water tank 25 on the outer side of the cylinder 2 to conduct away the heat generated during the machining process in a timely manner.

[0037] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A positive lubrication type die tool, characterized by: The application relates to a circular plate die body (1) and a driving assembly, the driving assembly comprises a cylinder (2), the bottom of the cylinder (2) is provided with a stepped surface (21), the circular plate die body (1) is arranged on the upper portion of the stepped surface (21) and detachably connected with the cylinder (2), a plurality of insertion holes (22) are symmetrically arranged on the outer side wall of the cylinder (2), a driving rod (3) is arranged in the insertion holes (22), a lubricating assembly is further arranged above the circular plate die body (1), the lubricating assembly comprises an inner cylinder (4) and an outer cylinder (5) which are nested with each other and form an annular accommodating cavity (6), a plurality of liquid leakage holes (41) are arranged on the inner wall of the inner cylinder (4), an oil inlet (51) is arranged on the top of the outer cylinder (5), and the oil inlet (51) is communicated with the accommodating cavity (6).

2. A positively lubricated die tool according to claim 1, wherein: A plurality of positioning holes (11) are arranged on the outer wall of the circular plate die body (1), threaded holes (23) are arranged on the side wall of the cylinder (2) and correspond to the positions of the positioning holes (11), and the circular plate die body (1) is connected with the cylinder (2) through screws (7) penetrating through the threaded holes (23) and the positioning holes (11).

3. The positively lubricated die tool of claim 2, wherein: A guide strip (24) is vertically arranged on the inner side wall of the cylinder (2), and a sliding groove I (12) is arranged on the outer side wall of the circular plate die body (1) and corresponds to the guide strip (24).

4. The positively lubricated die tool according to claim 3, wherein: A tray (8) is arranged on the outer side of the bottom of the inner cylinder (4), a sliding groove II (81) is arranged on the outer side wall of the tray (8) and corresponds to the guide strip (24), and the outer cylinder (5) is arranged on the upper surface of the tray (8).

5. The positively lubricated die button tool of claim 4, wherein: An annular groove I (52) is arranged on the bottom surface of the outer cylinder (5), an annular groove II (82) is arranged on the top surface of the tray (8) and corresponds to the position of the annular groove I (52), and a sealing ring I (9) is arranged between the annular groove I (52) and the annular groove II (82).

6. The positively lubricated die button tool of claim 5 wherein: The outer cylinder (5) comprises a lower cylinder portion (53) and an upper cover plate (54), the upper cover plate (54) is arranged on the upper end of the lower cylinder portion (53), the upper cover plate (54) is in an annular structure, the inner side wall of the upper cover plate (54) is provided with an internal thread, the top of the inner cylinder (4) is provided with an external thread, the upper cover plate (54) is threadedly connected with the inner cylinder (4), and the oil inlet (51) is arranged on the upper cover plate (54).

7. The positively lubricated die tool according to claim 6, wherein: A sealing gasket (10) is arranged between the upper cover plate (54) and the lower cylinder portion (53).

8. The positive lubrication type die button tool according to claim 1, characterized by: A water tank (25) is arranged on the outer side of the cylinder (2), a through hole (26) is arranged on the side wall of the water tank (25) and corresponds to the position of the insertion hole (22), and a plurality of sealing ring II (13) are arranged in the through hole (26).

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