Snap ring punch for filling molten aluminum

Abstract

The utility model provides a snap ring punch for aluminum liquid filling, which comprises a punch body and a connector, the punch body and the connector are coaxially arranged and detachably connected with each other, a connecting seat is arranged between the punch body and the connector, the connecting seat and the connector are coaxial, and two opposite sides of the connecting seat are respectively abutted against the punch body and the connector. A plurality of threaded grooves are formed in the side, facing the connecting base, of the punch body in the circumferential direction, a plurality of counterbores corresponding to the threaded grooves are formed in the connecting base, first bolts used for being in threaded connection with the corresponding threaded grooves are arranged in the counterbores in a penetrating mode, and a plurality of fixing holes are formed in the side wall of the connecting base in the circumferential direction. Second bolts used for abutting against the side wall of the connector are arranged in the multiple fixing holes in a threaded and penetrating mode. The punch has the advantages of high connection strength and long service life.

Description

Technical Field

[0001] This utility model relates to the field of punch design technology, and in particular to a retaining ring punch for filling molten aluminum. Background Technology

[0002] In the field of aluminum alloy die casting, snap ring punches are key components used for filling and pressurizing molten aluminum.

[0003] The utility model patent with publication number CN219074319U and title "A Die-casting Punch" discloses a piston head, which has an annular lubrication groove on its outer peripheral wall, a snap ring fixed at the bottom of the piston head, a gap between the snap ring and the piston head, and a snap ring with a gap fitted on the outer periphery of the top side of the piston head.

[0004] Most existing punch designs use an integral structure or a simple threaded connection. The integral structure can lead to problems with the difficulty of replacing worn parts later, while the simple threaded connection has low connection strength and may loosen during operation, thus affecting the injection molding effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a retaining ring punch for aluminum liquid filling, which solves the technical problems of poor (injection molding) die casting effect caused by the difficulty in maintaining existing punches or low connection strength.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A retaining ring punch for filling molten aluminum includes a punch body and a connector. The punch body and the connector are coaxially arranged and detachably connected to each other. A connecting seat is provided between the punch body and the connector. The connecting seat is coaxial with the connector and its opposite sides abut against the punch body and the connector, respectively. The punch body has a plurality of threaded grooves circumferentially formed on the side facing the connecting seat. The connecting seat has a plurality of countersunk holes corresponding to the threaded grooves. A first bolt for threaded connection with the corresponding threaded groove is inserted into each of the countersunk holes. A plurality of fixing holes are circumferentially formed on the side wall of the connecting seat. A second bolt for abutting against the side wall of the connector is threaded into each of the fixing holes.

[0008] The present invention is further configured such that: the connector head is provided with an annular protrusion, the protrusion abuts against one side of the connector seat and covers the opening of a plurality of countersunk holes.

[0009] The present invention is further configured such that: the side wall of the connecting seat is provided with several slots in the circumferential direction.

[0010] The present invention is further configured such that: the connecting seat has several notches circumferentially opened on the side facing the connecting head.

[0011] The present invention is further configured such that: a sealing assembly is fitted on the side wall of the punch body, the sealing assembly includes a head ring, two base rings and a tail ring that are sequentially fitted on the punch body and abut against each other, a protrusion is provided in an annular shape on the side wall of the end of the punch body away from the connector, the head ring abuts against the protrusion, and the tail ring abuts against the side of the connector facing the punch body.

[0012] The present invention is further configured such that: the punch body is provided with a threaded connecting groove, one end of the connector is a threaded segment, and the connector is threadedly connected to the connecting groove through the threaded segment.

[0013] The present invention is further configured such that: a cooling groove is formed inside the punch body and at the bottom of the connecting groove, and a cooling channel communicating with the cooling groove is formed on the connecting head.

[0014] Compared to the beneficial effects achieved by existing technologies:

[0015] This application discloses a retaining ring punch for filling molten aluminum, primarily used to push molten aluminum into a designated mold by engaging with the inner wall of a piston. After the connector is connected to the punch body, a connecting seat is snapped between the connector and the punch body. The design of the connecting seat effectively improves the overall structural strength during stamping. The designed first bolt effectively increases the axial tensile force of the structure, improving the connection strength of the punch body. The designed second bolt prevents the connector from rotating during operation, further enhancing the stability of the structure during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A.

[0020] In the above figures: 1. Punch body; 2. Connector; 3. Connecting seat; 4. Threaded groove; 5. Countersunk hole; 6. First bolt; 7. Fixing hole; 8. Second bolt; 9. Protrusion; 10. Bayonet; 11. Notch; 12. Head ring; 13. Base ring; 14. Tail ring; 15. Protrusion; 16. Connecting groove; 17. Threaded section; 18. Cooling groove; 19. Cooling channel. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example:

[0023] Reference Figures 1-4 This application discloses a retaining ring punch for filling molten aluminum, comprising a punch body 1 and a connector 2, wherein the punch body 1 and the connector 2 are coaxially arranged and detachably connected to each other. Figure 2 As shown, the punch body 1 has a threaded connecting groove 16, and one end of the connector 2 is a threaded section 17. The connector 2 is threadedly connected to the connecting groove 16 through the threaded section 17, which facilitates the connection between the connector 2 and the punch body 1. Figure 3 As shown, a cooling groove 18 is formed inside the punch body 1 and at the bottom of the connecting groove 16, and a cooling channel 19 communicating with the cooling groove 18 is formed on the connector 2. This arrangement can effectively cool the punch body 1 by pumping coolant into the cooling channel 19 and the cooling groove 18 through an external cooling device.

[0024] like Figure 1 and Figure 3 As shown, a connecting seat 3 is provided between the punch body 1 and the connecting head 2. The connecting seat 3 has a thickened inner wall. The connecting seat 3 is coaxial with the connecting head 2, and the opposite sides of the connecting seat 3 abut against the punch body 1 and the connecting head 2, respectively. Several threaded grooves 4 are circumferentially formed on the side of the punch body 1 facing the connecting seat 3. Several countersunk holes 5 corresponding to the threaded grooves 4 are formed on the thickened inner wall of the connecting seat 3. A first bolt 6 for threaded connection with the corresponding threaded groove 4 is inserted into each of the countersunk holes 5. Several fixing holes 7 are circumferentially formed on the side wall of the connecting seat 3. A second bolt 8 for abutting against the side wall of the connecting head 2 is threaded through each of the fixing holes 7. The threaded connection through the first bolt 6 passing through the countersunk holes 5 and the threaded grooves 4 further strengthens the connection strength with the punch body 1. The abutting against the side wall of the connecting head 2 through the fixing holes 7 by the second bolt 8 effectively prevents the connecting head 2 from rotating during operation.

[0025] like Figure 3As shown, the connector 2 has an annular protrusion 9, which abuts against one side of the connector 3 and covers the openings of several countersunk holes 5. The protrusion 9 can effectively clamp the connector 3, which was originally fitted on the connector 2, between the connector 2 and the punch body 1, and can prevent the first bolt 6 from protruding from the countersunk hole 5, thus having a secondary limiting effect.

[0026] like Figure 1 and Figure 2 As shown, the side wall of the connecting seat 3 is provided with several circumferentially oriented latches 10, and the side of the connecting seat 3 facing the connecting head 2 is provided with several circumferentially oriented notches 11. The latches and notches 11 are used to conveniently limit the connecting seat 3 with an external wrench or latch when disassembling the overall structure, so as to facilitate the disassembly of the first bolt 6 and the second bolt 8 on the connecting seat 3.

[0027] like Figure 1 and Figure 2 As shown, a sealing assembly is fitted onto the side wall of the punch body 1. The sealing assembly includes a head ring 12, two base rings 13, and a tail ring 14, which are sequentially fitted onto the punch body 1 and abut against each other. The head ring 12 and tail ring 14 are both made of H13 steel, and the two base rings 13 are beryllium bronze rings. This assembly is mainly used to improve the sealing performance of this structure within the piston cylinder. Figure 3 and Figure 4 As shown, a protrusion 15 is provided in an annular shape on the side wall of the end of the punch body 1 away from the connector 2. The head ring 12 abuts against the protrusion 15, and the tail ring 14 abuts against the side of the connector 3 facing the punch body 1. With this arrangement, after the connector 3 is fixed, the head ring 12, the two base rings 13 and the tail ring 14 will be together restricted and fixed on the punch body 1.

[0028] Working principle:

[0029] During installation, first, the connecting seat 3 is fitted onto the connecting head 2, and then the head ring 12, two base rings 13, and tail ring 14 are sequentially fitted onto the punch body 1. After fitting, the threaded section 17 of the connecting head 2 is screwed into the threaded connecting groove 16 on the punch body 1 to achieve coaxial connection between the two. This allows the two sides of the connecting seat 3 to abut against the protrusions 9 on the punch body 1 and the connecting head 2, respectively. Then, the first bolt 6 is passed through the countersunk hole 5 on the connecting seat 3 and tightened into the circumferentially threaded groove 4 on the punch body 1, thereby firmly fixing the connecting seat 3 onto the punch body 1. Next, the second bolt 8 is screwed into the fixing hole 7 on the side wall of the connecting seat 3 until its end is tightly abutted against the side wall of the connecting head 2. This operation effectively prevents the connecting head 2 from rotating relative to the punch body 1 and the connecting seat 3 during operation. The annular protrusion 9 on the connector 2 abuts against the connector 3 and covers the opening of the countersunk hole 5, forming a secondary limit on the first bolt 6, while ensuring that the connector 3 is securely clamped between the connector 2 and the punch body 1. During operation, the punch body 1 reciprocates under the action of the drive mechanism and pushes the injected aluminum liquid into the mold.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A retaining ring punch for filling molten aluminum, comprising a punch body (1) and a connector (2), wherein the punch body (1) and the connector (2) are coaxially arranged and detachably connected to each other, characterized in that: A connecting seat (3) is provided between the punch body (1) and the connector (2). The connecting seat (3) is coaxial with the connector (2), and the opposite sides of the connecting seat (3) abut against the punch body (1) and the connector (2) respectively. A plurality of threaded grooves (4) are circumferentially opened on the side of the punch body (1) facing the connecting seat (3). A plurality of countersunk holes (5) corresponding to the threaded grooves (4) are opened on the connecting seat (3). A first bolt (6) for threaded connection with the corresponding threaded groove (4) is passed through each of the countersunk holes (5). A plurality of fixing holes (7) are circumferentially opened on the side wall of the connecting seat (3). A second bolt (8) for abutting against the side wall of the connector (2) is threaded through each of the fixing holes (7).

2. A retaining ring punch for filling molten aluminum according to claim 1, characterized in that: The connector (2) is provided with an annular protrusion (9), which abuts against one side of the connector (3) and covers the opening of several countersunk holes (5).

3. A retaining ring punch for filling molten aluminum according to claim 1, characterized in that: The side wall of the connecting seat (3) is provided with several slots (10) in the circumferential direction.

4. A retaining ring punch for filling molten aluminum according to claim 1, characterized in that: The connector (3) has several notches (11) circumferentially opened on the side facing the connector (2).

5. A retaining ring punch for filling molten aluminum according to claim 1, characterized in that: A sealing assembly is fitted on the side wall of the punch body (1). The sealing assembly includes a head ring (12), two base rings (13) and a tail ring (14) that are sequentially fitted on the punch body (1) and abut against each other. A protrusion (15) is provided in an annular shape on the side wall of the end of the punch body (1) away from the connector (2). The head ring (12) abuts against the protrusion (15), and the tail ring (14) abuts against the side of the connector (3) facing the punch body (1).

6. A retaining ring punch for filling molten aluminum according to claim 1, characterized in that: The punch body (1) is provided with a threaded connecting groove (16), and one end of the connector (2) is a threaded section (17). The connector (2) is threadedly connected to the connecting groove (16) through the threaded section (17).

7. A retaining ring punch for filling molten aluminum according to claim 6, characterized in that: A cooling groove (18) is formed inside the punch body (1) and at the bottom of the connecting groove (16). A cooling channel (19) communicating with the cooling groove (18) is formed on the connector (2).

Images