CN113751693A - Screw-threaded shaped part and shaping device thereof - Google Patents
Screw-threaded shaped part and shaping device thereof Download PDFInfo
- Publication number
- CN113751693A CN113751693A CN202111060428.1A CN202111060428A CN113751693A CN 113751693 A CN113751693 A CN 113751693A CN 202111060428 A CN202111060428 A CN 202111060428A CN 113751693 A CN113751693 A CN 113751693A
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- CN
- China
- Prior art keywords
- forming
- thread
- molding
- cavity
- die
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2254—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies having screw-threaded die walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2209—Selection of die materials
Abstract
The application discloses a forming piece with screw thread and a forming device thereof. The invention relates to a formed part with threads and a forming device thereof. The forming device is used for preparing a formed part with threads, the formed part comprises a forming main body and a thread part arranged on the forming main body, the thread part is provided with threads, and the forming device comprises a forming die assembly and a thread forming part. The forming die assembly is internally provided with a forming cavity suitable for forming a forming main body of a formed part, and the forming die assembly is provided with an external opening communicated with the forming cavity. The thread forming piece comprises a thread forming part, the thread forming part is the same as the thread part in structure, and the thread forming piece is arranged in the forming cavity and partially extends out of the external opening so that the thread forming part is arranged outside the forming cavity. According to the forming piece with the thread and the forming device thereof, the forming piece with the thread can be directly prepared, and secondary thread processing is not needed.
Description
Technical Field
The invention relates to the field of mold forming and manufacturing, in particular to a formed part with threads and a forming device thereof.
Background
The molding process, particularly the metal molding process, is a process of solidifying and molding liquid or semi-liquid metal in a molten state into a solid molded product with a certain shape in a molding die. At present, the thread of a formed product, especially a metal die-cast formed product, is usually implemented by performing secondary cutting on the formed product after the formed product is formed so as to form the thread on the surface of the formed product.
However, such a thread implementation is easily limited by product structure and product strength of a molded product, for example, a portion requiring thread machining is small in size, or other surrounding parts are large in number, and are easily disturbed, which is inconvenient for thread machining. Or the strength of the molding material is lower, but the mechanical property requirement of the molded product is higher, and the secondary thread machining is not convenient to perform at the moment, because the secondary cutting machining can reduce the strength of the molded product, the strength of the processed molded product is lower, and the strength requirement of the product design or assembly of the molded product cannot be met.
Disclosure of Invention
An advantage of the present invention is to provide a molding apparatus capable of preparing a molded article having threads without requiring secondary thread processing of the molded article.
To achieve at least one of the above advantages, an advantage of the present invention is to provide a molding apparatus for preparing a molded article having threads, the molded article including a molding body and a threaded portion provided at the molding body, the threaded portion being formed with threads, the molding apparatus including: the forming die assembly is internally provided with a forming cavity suitable for forming the forming main body, and the forming die assembly is provided with an external opening communicated with the forming cavity; and the thread forming piece comprises a thread forming part, the thread forming part has the same structure as the thread part, and the thread forming part is arranged in the forming cavity and partially extends out of the external opening so that the thread forming part is externally arranged in the forming cavity.
According to an embodiment of the present invention, an external cavity is formed in the molding die assembly, and the protruding portion of the thread forming member is disposed in the external cavity.
According to an embodiment of the invention, the external cavity comprises a blocking cavity and an accommodating cavity which are communicated, the protruding part comprises a blocking part, the blocking part is connected with the thread forming part, and the blocking part is positioned in the blocking cavity and blocks a communication port of the accommodating cavity and the blocking cavity.
According to an embodiment of the present invention, the blocking-in cavity and the blocking-in portion are arranged in a clearance fit manner.
According to an embodiment of the present invention, the thread forming member includes an embedded portion configured to form a portion of the thread forming member disposed in the molding cavity, and an outer wall of the embedded portion is formed with an enlarged portion that enlarges an area of an outer wall surface thereof.
According to an embodiment of the invention, the amplification part is configured as an amplification groove and/or an amplification protrusion extending circumferentially along the implant.
According to an embodiment of the invention, the amplification part is configured as an amplification recess and/or an amplification protrusion extending axially along the implantation part.
According to an embodiment of the invention, the forming die assembly comprises a fixed die and a movable die, a forming groove is formed in at least one of the movable die and the fixed die, the movable die can move in a direction close to the fixed die to enable the forming groove to be closed to form the forming cavity, and the movable die can move in a direction far away from the fixed die to open the forming groove.
To achieve at least one of the above advantages, the present invention provides a molding member with threads, comprising: a molding body; and the thread forming piece is partially embedded in the forming main body, and the part of the thread forming piece containing the thread characteristic is positioned outside the forming main body.
According to an embodiment of the present invention, the material of the molding body is a light metal, and the material of the thread forming member is a hard metal.
Drawings
Fig. 1 shows a partially enlarged schematic view of a shaped part according to the invention.
Fig. 2 shows an exploded view of the molding apparatus of the present invention.
Fig. 3 shows an enlarged partial schematic view of the die assembly and thread forming member of fig. 1.
10: molding member, 11: molded body, 12: a threaded portion;
20: forming die assembly, 2O 1: molding cavity, 202: external port, 203: external cavity, 2031: receiving cavity, 2032: lumen block, 2033: communication port, 24: moving die, 25: fixing a mold;
30: thread forming member, 31: thread forming portion, 32: entry portion, 33: implant portion, 331: an amplification section.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 3, a molding apparatus according to a preferred embodiment of the present invention will be described in detail below, wherein the molding apparatus is used for preparing a molding member 10 having threads, and the molding member 10 having threads is formed at least partially with threads on a surface thereof. Thus, the molded article 10 includes a molded body 11 and a threaded portion 12 provided on the molded body 11, and the threaded portion 12 is formed with the thread, specifically, the thread is formed on an outer wall surface (not shown in the figure) of the threaded portion 12.
The molding apparatus includes a mold assembly 20 and a thread forming member 30. A molding cavity 201 adapted to mold the molding body 11 is formed in the molding die assembly 20. The forming die assembly 20 is formed with an outboard port 202 in communication with the forming cavity 201. The thread forming member 30 includes a thread forming portion 31, and the thread forming portion 31 has the same structure as the thread portion 12. The thread forming member 30 is disposed in the molding cavity 201 and partially extends out of the external port 202 so that the thread forming portion 31 is externally disposed in the molding cavity 201.
Thus, when the molding apparatus prepares the molded article 10 with threads, after the molten liquid or semi-liquid molding material, especially the metal material, is injected into the molding cavity 201, the molten liquid or semi-liquid molding material is formed into a solid state in the molding cavity 201 from the liquid or semi-liquid state, thereby molding and forming the outer contour of the molded body 11. Meanwhile, since the thread forming member 30 is provided in the molding cavity 201, the thread forming member 30 is embedded and fixed in the molding body 11 in a firm manner along with the process of solidifying and forming the molding material from the molten liquid or semi-liquid to the solid state. And because the thread forming part 31 of the thread forming member 30 is the same as the thread part 12 of the molding member 10 in structure and is located outside the molding cavity 201, the thread characteristics of the thread forming part 31 are not affected basically during molding, and the thread forming part 31 is directly formed into the thread part 12 of the molding member 10. In other words, the molding body 11 is formed in the molding cavity 201 along with the molding process, the thread forming member 30 is embedded and fixed in the molding body 11, and the thread forming portion 31 of the thread forming member 30 constitutes the thread portion 12 provided in the molding body 11. To this end, the molded body 11 and the threaded portion 12 are all prepared to complete the molding 10. The profile 10 does not require a second cutting operation to form the thread. At the same time, the quality of the finished molded part 10 with thread is high, since no secondary machining is required to weaken or damage the molded part 10.
Preferably, an external cavity 203 is formed in the forming die assembly 20, and the protruding portion of the thread forming member 30, i.e., the portion including the thread forming portion 31, is disposed in the external cavity 203. Therefore, in the molding process, the thread forming part 31 of the thread forming member 30 is positioned in the external cavity 203, the thread characteristics of the thread forming part 31 are not affected by the molten molding raw material in the molding cavity 201 basically, and are not affected by the external environment, and the quality of the molded part 10 can be ensured. It will be appreciated that the thread-forming portion 31 may also extend directly and be located outside the forming die assembly 20.
Preferably, the external cavity 203 includes an accommodating cavity 2031 and an obstructing cavity 2032 in communication. The portion of the thread forming member 30 extending out of the external port 202, i.e., the extending portion, includes an interference portion 32. The blocking portion 32 is connected to the thread forming portion 31, and the blocking portion 32 is located in the blocking cavity 2032 and blocks the communicating port 2033 between the accommodating cavity 2031 and the blocking cavity 2032, so as to prevent liquid or semi-liquid molding material from entering the accommodating cavity 2031 to wrap the thread of the thread forming portion 31 during molding.
Further, the blocking cavity 2032 is disposed in a clearance fit with the blocking portion 32. Therefore, the arrangement is convenient for the thread forming member 30 to be placed in the external cavity 203, and can prevent the melted molding material from entering the accommodating cavity 2031 to wrap the thread of the thread forming part 31 during molding, and can further increase the connection firmness of the molding die assembly 20 and the thread forming member 30, and prevent the thread forming member 30 from moving during molding.
Preferably, the thread forming member 30 includes an embedding portion 33. The embedded part 33 is configured to be a part where the thread forming member 30 is disposed in the molding cavity 201, and an enlarged part 331 capable of enlarging the area of the outer wall surface of the embedded part 33 is formed on the outer wall of the embedded part 33 to increase the wrapping area of the melted liquid or semi-liquid molding material on the thread forming member 30 during molding, increase the connection firmness of the molding main body 11 of the molded member 10 and the thread forming member 30, and improve the quality of the molded member 10.
Optionally, the amplification part 331 is configured as an amplification groove and/or an amplification protrusion extending along the circumferential direction of the embedded part 33.
Optionally, the amplification part 331 is configured as an amplification groove and/or an amplification protrusion extending axially along the embedded part 33.
Further, the amplification grooves and/or the amplification protrusions are arranged at regular intervals, so that the connection firmness of the formed main body 11 of the formed part 10 and the thread forming part 30 obtained through preparation is further improved, and the quality of the formed part 10 is improved.
Preferably, the forming die assembly 20 includes a moving die 24 and a fixed die 25. At least one of the movable mold 24 and the fixed mold 25 is formed with a molding groove, the movable mold 24 is movable in a direction toward the fixed mold 25 to close the molding groove to form the molding cavity 201, and the movable mold 24 is movable in a direction away from the fixed mold 25 to open the molding groove to take out the molded article 10 after preparation. According to different requirements of molding of the molded part 10, the molding cavity 201 can be formed in different manners, for example, the movable mold 24 is formed with a first molding groove, the fixed mold 25 is formed with a second molding groove, and the movable mold 24 moves relative to the fixed mold 25 to contact an opening of the first molding groove and an opening of the second molding groove after the fixed mold 25 is clamped to align and close to form the molding cavity 201. For example, the movable mold 24 is formed with a first molding groove, and the opening of the first molding groove is directly closed by the fixed mold 25 after the movable mold 24 moves relative to the fixed mold 25 and contacts the fixed mold 25 to mold.
According to one aspect of the present invention, the present invention further provides a shaped part 10 with a thread, the shaped part 10 with a thread comprises a shaped body 11 and a thread forming member 30, wherein the thread forming member 30 is partially embedded in the shaped body 11, and a thread forming part 31 with a thread feature of the thread forming member 30 is located outside the shaped body 11.
Preferably, the material of the molding body 11 is a light metal, especially a light alloy, such as a titanium alloy, a magnesium alloy, an aluminum alloy, and the like, and the material of the thread forming member 30 is a hard metal, such as a steel material, and the like. Therefore, the formed part 10 can exert the advantage of light weight of light metal, realize the light weight of products and form a thread structure, realize the special assembly requirements of the products and widen the application field of the light metal, particularly the light alloy.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. Forming device, its characterized in that for preparing the threaded forming part, the forming part includes the shaping main part and establishes the screw portion of shaping main part, screw portion is formed with the screw thread, forming device includes:
the forming die assembly is internally provided with a forming cavity suitable for forming the forming main body, and the forming die assembly is provided with an external opening communicated with the forming cavity; and the number of the first and second groups,
the thread forming piece comprises a thread forming part, the thread forming part is the same as the thread part in structure, and the thread forming part is arranged in the forming cavity and partially extends out of the external opening so that the thread forming part is arranged outside the forming cavity.
2. The molding apparatus as defined in claim 1, wherein an external cavity is formed in the mold assembly, the protruding portion of the thread forming member being disposed within the external cavity.
3. The molding apparatus as defined in claim 2, wherein the external cavity includes a blocking cavity and an accommodating cavity communicating with each other, the protruding portion includes a blocking portion, the blocking portion is connected to the thread forming portion, and the blocking portion is located in the blocking cavity and blocks a communication opening between the accommodating cavity and the blocking cavity.
4. The molding device as defined in claim 3, wherein the check-in cavity is disposed in a clearance fit with the check-in portion.
5. The molding apparatus as defined in claim 1, wherein the thread forming member includes an embedded portion configured to form a portion of the thread forming member disposed in the molding cavity, an outer wall of the embedded portion being formed with an enlarged portion that enlarges an area of an outer wall surface thereof.
6. The molding device as defined in claim 5, wherein the amplification portion is configured as an amplification groove and/or an amplification protrusion extending circumferentially along the implant.
7. The molding device as defined in claim 5, wherein the amplification portion is configured as an amplification groove and/or an amplification protrusion extending axially along the implant.
8. The molding apparatus as defined in claim 1, wherein the molding die assembly includes a stationary die and a movable die, at least one of the movable die and the stationary die having a molding groove formed therein, the movable die being movable in a direction toward the stationary die to close the molding groove to form the molding cavity, the movable die being movable in a direction away from the stationary die to open the molding groove.
9. A forming member having a thread, comprising:
a molding body; and the number of the first and second groups,
a thread-forming member partially embedded within the molding body, and a portion of the thread-forming member containing thread features located outside the molding body.
10. The molding member according to claim 1, wherein the molding body is made of a light metal, and the thread forming member is made of a hard metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060428.1A CN113751693A (en) | 2021-09-10 | 2021-09-10 | Screw-threaded shaped part and shaping device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060428.1A CN113751693A (en) | 2021-09-10 | 2021-09-10 | Screw-threaded shaped part and shaping device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113751693A true CN113751693A (en) | 2021-12-07 |
Family
ID=78794643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111060428.1A Pending CN113751693A (en) | 2021-09-10 | 2021-09-10 | Screw-threaded shaped part and shaping device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113751693A (en) |
-
2021
- 2021-09-10 CN CN202111060428.1A patent/CN113751693A/en active Pending
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