Punch general assembly structure

Abstract

The utility model discloses a punch general assembly structure which comprises a base body, one end of the base body is in threaded connection with a connector, a steel ring and a copper ring are arranged outside the base body in a sleeved mode, the copper ring is located between the connector and the steel ring, the end, away from the connector, of the base body is in a closed shape, and a narrow opening is formed in the steel ring. The copper ring comprises a first copper ring part and a second copper ring part, and the first copper ring part and the second copper ring part are mutually embedded, clamped and fixed; the end side of the first copper ring part is provided with a T-shaped connecting structure integrally formed with the first copper ring part, and a T-shaped connecting port allowing the T-shaped connecting structure to be embedded is formed in the second copper ring part; according to the punch general assembly structure, due to the fact that the narrow opening is formed in the steel ring, excessive deformation can be prevented through the arrangement of the narrow opening; according to the punch general assembly structure, the copper ring is additionally arranged, the copper ring is buckled, the material performance of thermal expansion and cold contraction of the copper ring is utilized, the copper ring can be expanded and abut against the outer wall of a pipeline when heated, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of aluminum production accessories, in particular to a punch assembly structure. Background Art

[0002] The injection rod is an important device for pouring molten aluminum, and the punch is a key component used with it. The punch is a part used to push the alloy liquid into the die-casting model cavity.

[0003] The current punches mainly have the following defects, such as: the steel ring of the traditional punch is relatively short, and the steel ring is closely fitted with the inner wall of the injection pipe. When subjected to high temperature, the steel ring is prone to excessive deformation or expansion, and is prone to wear; in addition, the traditional copper ring is one-piece, and when heated, it may deform or cause insufficient sealing. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a punch assembly structure to solve the problems mentioned in the background technology.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a punch assembly structure, including a base, one end of the base is threadedly connected to a connector, the outer sleeve of the base is provided with a steel ring and a copper ring, the copper ring is located between the connector and the steel ring, the base is closed at the end away from the connector, and a narrow opening is provided in the steel ring; the copper ring includes a first copper ring part and a second copper ring part, the first copper ring part and the second copper ring part are embedded and fixed with each other; the end side of the first copper ring part has a T-shaped connecting structure integrally formed with the first copper ring part, and the second copper ring part has a T-shaped connecting opening for embedding the T-shaped connecting structure.

[0006] Through the above technical scheme, in the punch assembly structure, a narrow opening is provided on the steel ring to facilitate the contraction of the steel ring. When the aluminum liquid is pressed, the temperature is relatively high and the steel ring will be stretched open. The setting of the narrow opening can prevent excessive deformation and reduce wear. The punch assembly structure adds a copper ring, which is a snap-fit ​​type. The material properties of the copper ring, which expands with heat and contracts with cold, are utilized. When heated, it can be stretched open and pressed against the outer wall of the pipe to increase the sealing.

[0007] Preferably, the connector is a multi-layer stepped structure, and the diameter of the end of the connector is the same as the diameter of the copper ring and the steel ring.

[0008] Through the above technical solution and the above settings, the adaptability of the punch during use can be ensured.

[0009] Preferably, the base has a protruding first step at an end facing away from the connector, and a chamfer is provided at the first step.

[0010] Through the above technical solution, the setting of the chamfer can reduce stress concentration.

[0011] Preferably, the edges of the T-shaped connecting structure and the T-shaped connecting port are respectively rounded.

[0012] Through the above technical solution, the rounded setting facilitates buckling and reduces stress concentration.

[0013] Preferably, the first copper ring portion, the second copper ring portion and the base body are respectively provided with pin holes for pins to be inserted and fixed.

[0014] Through the above technical solution, the provision of the pin hole can assist in fixing the first copper ring part, the second copper ring part and the base.

[0015] Preferably, the end portion inside the base body is rounded.

[0016] Through the above technical solution, the rounded setting can reduce the stress concentration phenomenon.

[0017] Preferably, a plurality of blind holes are formed on the annular wall of the connector.

[0018] Through the above technical solution, the setting of the blind hole can assist in fixing the punch.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] In the punch assembly structure, a narrow opening is provided on the steel ring to facilitate the contraction of the steel ring. When the aluminum liquid is pressed, the temperature is relatively high and the steel ring will be stretched open. The setting of the narrow opening can prevent excessive deformation and reduce wear. The punch assembly structure adds a copper ring, which is a snap-fit ​​type. The material properties of the copper ring, which expands with heat and contracts with cold, are utilized. When heated, it can be stretched open and pressed against the outer wall of the pipe to increase the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0022] Figure 2 This is the second structural diagram of the utility model;

[0023] Figure 3 It is a structural sectional view of the utility model.

[0024] Figure numerals: 1, base; 2, connector; 3, steel ring; 4, copper ring; 5, narrow mouth; 41, first copper ring part; 42, second copper ring part; 43, T-shaped connection structure; 44, T-shaped connection port; 6, pin hole; 7, blind hole. DETAILED DESCRIPTION

[0025] 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.

[0026] refer to Figures 1 to 3 A punch assembly structure comprises a base 1, one end of which is threadedly connected to a connector 2, a steel ring 3 and a copper ring 4 are sleeved on the outside of the base 1, the copper ring 4 is located between the connector 2 and the steel ring 3, the base 1 is closed at the end away from the connector 2, and a narrow opening 5 is provided in the steel ring 3; the copper ring 4 comprises a first copper ring part 41 and a second copper ring part 42, and the first copper ring part 41 and the second copper ring part 42 are embedded and fixed with each other; the end side of the first copper ring part 41 has a T-shaped connecting structure 43 integrally formed with the first copper ring part 41, and the second copper ring part 42 has a T-shaped connecting opening 44 for the T-shaped connecting structure 43 to be embedded.

[0027] refer to Figures 1 to 3 In the punch assembly structure, a narrow opening 5 is provided on the steel ring 3 to facilitate the contraction of the steel ring 3. When the aluminum liquid is pressed, the temperature is relatively high and the steel ring 3 will be stretched open. The setting of the narrow opening 5 can prevent excessive deformation and reduce wear. The punch assembly structure adds a copper ring 4, which is a buckled type. The material properties of the copper ring 4, which expands with heat and contracts with cold, are utilized. When heated, it can be stretched open and pressed against the outer wall of the pipe to increase the sealing performance.

[0028] refer to Figures 1 to 3 , wherein the connector 2 is a multi-layer stepped structure, and the end diameter of the connector 2 is the same as the diameter of the copper ring 4 and the steel ring 3. The above arrangement can ensure the adaptability of the punch when used; wherein the base 1 has a protruding first step at the end away from the connector 2, and a chamfer is arranged at the first step. The chamfer arrangement can reduce stress concentration.

[0029] refer to Figures 1 to 3 , wherein the edges of the T-shaped connecting structure 43 and the T-shaped connecting port 44 are respectively arranged to be chamfered, and the chamfered arrangement facilitates buckling and reduces stress concentration; wherein the first copper ring portion 41, the second copper ring portion 42 and the base 1 are respectively provided with pin holes 6 for pin insertion and fixation, and the arrangement of the pin holes 6 can assist in the fixation of the first copper ring portion 41, the second copper ring portion 42 and the base 1; wherein the end portion inside the base 1 is arranged to be chamfered, and the chamfered arrangement can reduce stress concentration; wherein a plurality of blind holes 7 are arranged on the ring wall of the connector 2, and the arrangement of the blind holes 7 can assist in the fixation of the punch.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punch assembly structure, comprising a base (1), characterized in that: One end of the base (1) is threadedly connected to a connector (2); a steel ring (3) and a copper ring (4) are sleeved on the outside of the base (1); the copper ring (4) is located between the connector (2) and the steel ring (3); the base (1) is closed at the end away from the connector (2); a narrow opening (5) is provided in the steel ring (3); the copper ring (4) comprises a first copper ring portion (41) and a second copper ring portion (42); the first copper ring portion (41) and the second copper ring portion (42) are mutually embedded and fixed; the end side of the first copper ring portion (41) has a T-shaped connection structure (43) integrally formed with the first copper ring portion (41); the second copper ring portion (42) has a T-shaped connection opening (44) for the T-shaped connection structure (43) to be embedded.

2. A punch assembly structure according to claim 1, characterized in that: The connector (2) is a multi-layered stepped structure, and the diameter of the end of the connector (2) is the same as the diameter of the copper ring (4) and the steel ring (3).

3. The punch assembly structure according to claim 1, characterized in that: The base body (1) has a protruding first step at an end facing away from the connector (2), and a chamfer is provided at the first step.

4. The punch assembly structure according to claim 1, characterized in that: The edges of the T-shaped connection structure (43) and the T-shaped connection opening (44) are respectively configured to be rounded.

5. The punch assembly structure according to claim 1, characterized in that: The first copper ring part (41), the second copper ring part (42) and the base body (1) are respectively provided with pin holes (6) for pins to be inserted and fixed.

6. The punch assembly structure according to claim 1, characterized in that: The inner end of the base body (1) is configured to be rounded.

7. The punch assembly structure according to claim 1, characterized in that: A plurality of blind holes (7) are provided on the annular wall of the connector (2).

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