Die-casting punch
By setting up an oil circuit system and a removable connection design on the die-cast punch, the problem of premature scrapping of the outer wall of the punch due to friction damage is solved, extending the service life and reducing replacement costs.
Patent Information
- Application Number
- CN202421205079.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
During the long-term linear reciprocating process of existing die-cast punches, the metal shell of the outer wall of the punch is damaged by friction, resulting in early scrapping of the punch and increasing replacement costs.
A die-cast punch is designed. By setting up an oil circuit system on the punch body and the connecting head, the hedge lubrication is achieved, the corrosion and wear of the metal liquid material is reduced, and the damaged parts are replaced through a removable connection design.
It extends the service life of the punch, reduces the frequency and cost of replacing the punch, and improves processing efficiency and equipment reliability.
Smart Images
Figure CN222552120U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of die-casting processing, in particular to a die-casting punch. Background Art
[0002] In recent years, China's stamping industry has become increasingly mature and stable, parts suppliers have sprung up like mushrooms after rain, and the competition among them is also extremely fierce. Therefore, in order to reduce costs, the control of material utilization and mold manufacturing costs has become increasingly strict.
[0003] When the existing die-cast punches on the market make linear reciprocating motion in the feed barrel, after long-term processing, the punch body and the materials around the punch have a certain friction effect on the outer wall of the punch during the long-term linear reciprocating processing, which will damage the metal shell of the outer wall of the punch. After a certain number of life uses, the entire punch will be in a scrapped state, resulting in the replacement of the entire punch, which ultimately increases the processing cost. Utility Model Content
[0004] The utility model aims to solve the technical problem that the outer wall of the punch is subjected to certain friction during long-term linear reciprocating processing, which will damage the metal shell of the outer wall of the punch. After a certain number of life uses, the entire punch will be in a scrapped state, resulting in the need to replace the entire punch, which ultimately increases the processing cost.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A die-casting punch comprises a punch body, an opening is provided at one end of the punch body, an internal thread is provided at the opening, and a connector is connected to the internal thread of the opening; the connector comprises a cylindrical body, connecting columns are respectively integrally provided at both ends of the cylindrical body, and an external thread is provided on the connecting column at a circumferential surface away from the cylindrical body; annular oil grooves are provided at both end faces of the cylindrical body, a plurality of first oil paths extending along the length direction of the cylindrical body are provided in the cylindrical body, and the two ends of the first oil path are respectively communicated with the two annular oil grooves; a plurality of second oil paths extending along the length direction of the cylindrical body are provided in the punch body, the second oil paths are provided with openings at both ends of the punch body, the end face of the cylindrical body abuts against the end face of the punch body, and one end opening of the second oil path is communicated with the annular oil groove; an impact head is provided at the end of the punch body away from the connector, a plurality of third oil paths are provided on the impact head, openings are provided at both ends of the third oil path, and one end opening of the third oil path is communicated with the second oil path.
[0007] Working principle:
[0008] In actual work, when the punch body or the impact head is damaged during die-casting and needs to be replaced, the operator usually selects the connecting head from the injection device first, then unscrews the connecting head from one side of the punch body, and finally removes the impact head from the punch body. In this way, the impact head or the punch body can be replaced if it is damaged during processing, thereby reducing the processing cost. The first oil circuit on the connecting head, the second oil circuit on the punch body and the third oil circuit on the impact head are interconnected, so that the entire punch being processed can be lubricated, reducing the corrosion and wear of the punch caused by the liquid metal during processing.
[0009] The beneficial effects of the utility model are:
[0010] When the impact head or the punch body needs to be replaced, the connecting head is first selected from the injection device, and then the connecting head is unscrewed from one side of the punch body, and finally the impact head is removed from the punch body. In this way, the impact head or the punch body that is damaged during processing can be replaced. In this way, the damaged impact head or punch body can continue to be used, thereby reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the punch and the punch body of the utility model;
[0012] Figure 2 for Figure 1 Schematic diagram of the cross-section of AA;
[0013] Figure 3 Schematic diagram of the outline structure of the connector;
[0014] Figure 4 It is a schematic diagram of the cross-sectional structure of the connector.
[0015] Explanation of the accompanying drawings: punch body 1, internal thread 2, connecting head 3, cylindrical body 4, connecting column 5, external thread 6, oil groove 7, first oil circuit 8, second oil circuit 9, impact head 10, third oil circuit 11, first retaining ring 12, second retaining ring 13, third retaining ring 14, retaining groove 15, retaining block 16, limiting ring 17, and retaining edge 18. DETAILED DESCRIPTION
[0016] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a die-casting punch comprises a punch body 1, an opening is provided at one end of the punch body 1, an internal thread 2 is provided at the opening, and a connector 3 is connected to the internal thread 2 in the opening; the connector 3 comprises a cylindrical body 4, connecting columns 5 are integrally provided at both ends of the cylindrical body 4, and external threads 6 are provided on the circumferential surface of the connecting column 5 away from the cylindrical body 4; annular oil grooves 7 are provided on both end surfaces of the cylindrical body 4, and a plurality of first oil paths 8 extending along the length direction of the cylindrical body 4 are provided in the cylindrical body 4, and the two ends of the first oil path 8 are respectively The punch body 1 is provided with a plurality of second oil paths 9 extending along its length direction, and the second oil paths 9 are provided with openings at both ends of the punch body 1. The end face of the cylindrical main body 4 abuts against the end face of the punch body 1, and one end opening of the second oil path 9 is connected with the annular oil groove 7; an impact head 10 is provided at the end of the punch body 1 away from the connecting head 3, and a plurality of third oil paths 11 are provided on the impact head 10, and openings are provided at both ends of the third oil path 11, and one end opening of the third oil path 11 is connected with the second oil path 9.
[0018] In actual work, when the punch body 1 or the impact head 10 is damaged during die-casting and needs to be replaced, the operator usually first selects the connecting head 3 from the injection device, then unscrews the connecting head 3 from one side of the punch body 1, and finally removes the impact head 10 from the punch body 1. In this way, the replacement requirement of the impact head 10 or the punch body 1 is met, whichever part is damaged during processing is replaced, thereby reducing the processing cost. The first oil circuit 8 on the connecting head 3, the second oil circuit 9 on the punch body 1 and the third oil circuit 11 on the impact head 10 are interconnected, so that the entire punch being processed can be lubricated, reducing the corrosion and wear of the punch caused by the metal liquid during processing.
[0019] like Figure 1 , Figure 2 and Figure 3As shown, the impact head 10 and the punch body 1 are detachably connected, and a first clamping ring 12 is further provided at the connection between the outer walls of the impact head 10 and the punch body 1. The first clamping ring 12 is used to clamp the punch body 1 and the impact head 10 from the periphery after they are connected. The second clamping ring 13 and the third clamping ring 14 are also included. The second clamping ring 13 and the third clamping ring 14 are clamped on the outer wall of the punch body 1; the third clamping ring 14 is located between the first clamping ring 12 and the second clamping ring 13, the first clamping ring 12 is a rigid material, and the third clamping ring 14 is a copper material; the first clamping ring 12, the second clamping ring 13 and the third clamping ring 14 has the same thickness, a groove 15 with a dovetail cross-section is provided on the impact head 10, a block 16 with a dovetail cross-section is provided on the punch body 1, a limiting ring 17 is integrally provided on the outer wall of the punch body 1, and a stopper 18 is included at one end of the impact head 10, and a notch for abutting against the stopper 18 is provided at one end of the first retaining ring 12 close to the stopper 18; the first retaining ring 12, the second retaining ring 13 and the third retaining ring 14 are located between the limiting ring 17 and the stopper 18, and the third retaining ring 14 is made of copper material and is used to increase the expansion coefficient. During processing, the third retaining ring 14 abuts against the injection device.
[0020] By providing a detachable connection between the impact head 10 and the punch body 1, it is possible to achieve the situation that the impact head 10 and the impact body can be connected without replacing the entire punch when they are damaged. By providing the first clamping ring 12, the impact head 10 and the punch body 1 can be stabilized to prevent the impact head 10 from falling off the punch body 1 during processing. The dovetail clamping groove 15 on the impact head 10 and the dovetail clamping block 16 on the punch body 1 facilitate the connection of the clamping block 16 to the clamping groove 15. The first clamping ring 12, the second clamping ring 13 and the third clamping ring 14 can be clamped on the outer walls of the punch body 1 and the impact head 10 by means of a limit ring 17 provided on the punch body 1 and a notch provided at one end of the first clamping ring 12 near the retaining edge 18 for abutting the retaining edge 18. The third clamping ring 14 is made of copper material, which can allow the third clamping ring 14 to have a certain degree of expansion during processing, thereby preventing some hardening of the molten metal from causing some unnecessary damage to the punch.
[0021] Working principle:
[0022] In actual work, when the punch body 1 or the impact head 10 is damaged during die-casting and needs to be replaced, the operator usually selects the connecting head 3 from the injection device first, then unscrews the connecting head 3 from one side of the punch body 1, and finally removes the impact head 10 from the punch body 1, thereby meeting the replacement requirements of the impact head 10 or the punch body 1 whichever part is damaged during processing, thereby reducing the processing cost, and the first oil circuit 8 on the connecting head 3, the second oil circuit 9 on the punch body 1 and the third oil circuit 11 on the impact head 10 are interconnected, so that the entire punch being processed can be lubricated to avoid corrosion and wear of the punch caused by the metal liquid during processing, and excessive mechanical damage, thereby affecting the service life.
[0023] By providing a detachable connection between the impact head 10 and the punch body 1, it is possible to achieve the situation that there is no need to replace the entire punch when the impact head 10 and the impact body are damaged. The first clamping ring 12 can stabilize the impact head 10 and the punch body 1 to prevent the impact head 10 from falling off the punch body 1 during processing. The dovetail clamping groove 15 on the impact head 10 and the dovetail clamping block 16 on the punch body 1 facilitate the connection of the clamping block 16 to the clamping groove 15. The limiting ring 17 provided on the punch body 1 and the notch provided at the end of the first clamping ring 12 close to the retaining edge 18 for abutting the retaining edge 18 can clamp the first clamping ring 12, the second clamping ring 13 and the third clamping ring 14 on the outer wall of the punch body 1 and the impact head 10. The third clamping ring 14 is made of copper material, which can allow the third clamping ring 14 to have a certain degree of expansion during processing, thereby preventing some hardening of the molten metal from causing some unnecessary damage to the punch.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A die-casting punch, comprising a punch body (1), characterized in that: An opening is provided at one end of the punch body (1), an internal thread (2) is provided at the opening, and a connector (3) is connected to the internal thread (2) in the opening; the connector (3) comprises a cylindrical body (4), connecting columns (5) are integrally provided at both ends of the cylindrical body (4), and an external thread (6) is provided on the circumferential surface of the connecting column (5) away from the cylindrical body (4); Annular oil grooves (7) are provided on both end faces of the cylindrical body (4); a plurality of first oil passages (8) extending along the length direction of the cylindrical body (4) are provided inside the cylindrical body (4); both ends of the first oil passages (8) are communicated with the two annular oil grooves (7); a plurality of second oil passages (9) extending along the length direction of the punch body (1) are provided inside the punch body (1); openings are provided at both ends of the punch body (1); the end face of the cylindrical body (4) abuts against the end face of the punch body (1); one end opening of the second oil passage (9) is communicated with the annular oil groove (7); An impact head (10) is provided at one end of the punch body (1) away from the connecting head (3), and a plurality of third oil passages (11) are provided on the impact head (10). Openings are provided at both ends of the third oil passages (11), and one end opening of the third oil passages (11) is in communication with the second oil passage (9).
2. A die-casting punch according to claim 1, characterized in that: The impact head (10) and the punch body (1) are detachably connected, and a first clamping ring (12) is provided at the connection between the outer walls of the impact head (10) and the punch body (1). The first clamping ring (12) is used to clamp the punch body (1) and the impact head (10) from their outer peripheries after they are connected.
3. A die-casting punch according to claim 1, characterized in that: The punch body (1) further comprises a second clamping ring (13) and a third clamping ring (14), wherein the second clamping ring (13) and the third clamping ring (14) are clamped on the outer wall of the punch body (1); the third clamping ring (14) is located between the first clamping ring (12) and the second clamping ring (13); the first clamping ring (12) is made of a rigid material, and the third clamping ring (14) is made of a copper material; the first clamping ring (12), the second clamping ring (13) and the third clamping ring (14) have the same thickness.
4. A die-casting punch according to claim 1, characterized in that: A clamping groove (15) with a dovetail-shaped cross section is provided on the impact head (10), and a clamping block (16) with a dovetail-shaped cross section is provided on the punch body (1).
5. The die-casting punch according to claim 1, characterized in that: A limiting ring (17) is integrally provided on the outer wall of the punch body (1); a stop edge (18) is provided at one end of the impact head (10); and a notch for abutting against the stop edge (18) is provided at one end of the first retaining ring (12) close to the stop edge (18); the first retaining ring (12), the second retaining ring (13) and the third retaining ring (14) are located between the limiting ring (17) and the stop edge (18).
6. A die-casting punch according to claim 3, characterized in that: The third clamping ring (14) is made of copper material and is used to increase the expansion coefficient. During processing, the third clamping ring (14) abuts against the injection device.