CN211071756U

CN211071756U - Die-casting punch

Info

Publication number: CN211071756U
Application number: CN201920549702.3U
Authority: CN
Inventors: 杨华; 刘昭华
Original assignee: Sensus Rongtai Precision Die Casting Yangzhou Co Ltd
Current assignee: Sensus Rongtai Precision Die Casting Yangzhou Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-07-24
Anticipated expiration: 2029-04-22

Abstract

The utility model relates to a die-casting drift, including the base member of cylindrical structure a plurality of radial recesses have been seted up on the circumference outer wall of base member detachably fixed insertion has the graphite cylinder on the radial recess. Because graphite has the lubrication action, the utility model discloses a die-casting drift has self-lubricating function at the during operation, can reduce the die-casting in-process effectively and cause the inside technical defect who produces the gas pocket easily of product, has reduced the change frequency of die-casting drift, has improved the production efficiency of die-casting production, has reduced manufacturing cost simultaneously.

Description

Die-casting punch

Technical Field

The utility model relates to a die-casting technical field specifically relates to a die-casting drift.

Background

Die casting is a metal casting process and is characterized in that high pressure is applied to molten metal by utilizing an inner cavity of a die. The die-casting punch is a core part of a die-casting machine, works in a high-temperature, high-pressure and high-speed environment, is directly contacted with metal liquid and rubs with a melting cup at a high speed, and the loss of the die-casting machine punch is easily caused by a severe working environment. Therefore, the punch of the die casting machine needs to be replaced continuously after the punch fails, and the replacement of the punch seriously affects the die casting production efficiency, thereby causing economic loss. For example, in the case of a medium-production die casting machine, the die casting machine does not include die-casting aluminum alloy materials, and the power consumption and the labor hour loss cost, and the annual loss of each die casting machine is up to tens of thousands of yuan. At present, the lubricating of the die-casting punch head mainly adopts punch head oil or granular oil for lubricating. The lubricating mode is easy to generate smoke, the quality of die castings is affected, and the environmental pollution is high.

SUMMERY OF THE UTILITY MODEL

The technical problems that the die-casting punch in the prior art is short in service life, poor in wear resistance and easy to generate air holes in products due to the fact that punch lubricating oil is used are solved. The utility model provides a can overcome aforementioned technical defect's a die-casting drift.

In order to realize the purpose, the technical scheme of the utility model is that: a die-casting punch comprises a base body, wherein a plurality of radial grooves are uniformly formed in the circumferential outer wall of the base body, and graphite cylinders are detachably and fixedly inserted into the radial grooves.

Preferably, the graphite cylinder is coated with a bonding material at the junction with the radial groove.

In any of the above aspects, preferably, the radial groove is of a cylindrical configuration.

In any of the above embodiments, preferably, the substrate has a cylindrical structure.

In any of the above schemes, preferably, the end of the base body is provided with an axially arranged liquid inlet through hole and a liquid outlet through hole.

In any one of the above schemes, preferably, the liquid inlet through hole and the liquid outlet through hole are parallel to each other and are through.

In any of the above solutions, it is preferable that the distance between two adjacent radial grooves is 5 to 10 mm.

In any of the above solutions, it is preferable that the base body is made of H13 alloy steel material.

In any of the above aspects, it is preferable that the surface of the base body is subjected to nitriding treatment and the thickness of the nitrided layer is more than 0.1 mm.

In any of the above aspects, it is preferred that the diameter of the radial groove is 3 to 5 mm.

In any of the above aspects, it is preferred that the radial groove has a diameter of 5 mm.

In any of the above embodiments, it is preferable that the graphite cylinders have a diameter of 4.8 mm.

In any of the above embodiments, it is preferable that the graphite cylinders have a diameter of 3 to 5 mm.

In any of the above embodiments, preferably, the adhesive material is an anaerobic adhesive.

In any of the above solutions, it is preferable that the distance between two adjacent radial grooves is 8 mm.

In any of the above aspects, it is preferred that the depth of the radial groove is 3 to 5 mm. Preferably 4.5 mm.

Compared with the prior art, the utility model has the advantages of: since graphite has a lamellar structure, when an external force is applied to the graphite, slippage between layers is likely to occur. The graphite lubricating property mainly depends on the size of graphite flakes, and the larger the flakes are, the smaller the friction coefficient is, and the better the lubricating property is. Meanwhile, the graphite has the advantages of high temperature resistance, fatigue resistance, friction resistance and the like. Graphite has the irreplaceable advantage in the occasions where high lubricating performance is required. Therefore, the utility model discloses a die-casting drift has adopted the lubricated mode that graphite lubrication mode has replaced traditional die-casting drift to adopt drift oil and/or pellet oil. The lubricating mode effectively reduces the problem of air holes in the product caused by using the punch oil or the granular oil. Meanwhile, the graphite has very good lubricating property, so that the friction between the die-casting punch and the melting cup is reduced, the service life of the die-casting punch is prolonged, the frequency of replacing the die-casting punch is reduced, the working efficiency of a die-casting process is greatly improved, and the die-casting cost is also reduced.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a die casting punch according to the invention. The reference numbers in the figures are: matrix: 1. a graphite cylinder: 2. radial grooves: 3. end part: 4. liquid inlet through holes: 5. liquid outlet through holes: 6.

Detailed Description

The preferred embodiments of the present invention will be further explained with reference to the accompanying drawings;

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "bonded" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

as shown in fig. 1, the die-casting punch comprises a base body 1, a plurality of radial grooves 3 are uniformly formed in the circumferential outer wall of the base body 1, and graphite cylinders 2 are detachably fixed and inserted in the radial grooves 3. The base body 1 is provided with an end part 4, and a liquid inlet through hole 5 and a liquid outlet through hole 6 which are axially arranged are arranged on the end part 4. The liquid inlet through hole 5 and the liquid outlet through hole 6 are parallel to each other and are communicated with each other. The joint of the graphite cylinder 2 and the radial groove 3 is coated with a bonding material. In other words, the graphite cylinder 2 is bonded in the radial groove 3 by the adhesive material. The specific installation mode is that the graphite cylinder 2 is fixedly inserted into the radial groove 3, and the contact part of the graphite cylinder 2 and the radial groove 3 is coated with adhesive material. In this embodiment, the adhesive material is anaerobic glue.

Example 2:

as shown in fig. 1, the die-casting punch comprises a base body 1, a plurality of radial grooves 3 are uniformly formed in the circumferential outer wall of the base body 1, and graphite cylinders 2 are detachably fixed and inserted in the radial grooves 3. The base body 1 is provided with an end part 4, and a liquid inlet through hole 5 and a liquid outlet through hole 6 which are axially arranged are arranged on the end part 4. The radial grooves 3 are of cylindrical configuration. Also, the base 1 has a cylindrical structure. The liquid inlet through hole 5 and the liquid outlet through hole 6 are parallel to each other and are communicated with each other. The joint of the graphite cylinder 2 and the radial groove 3 is coated with a bonding material. In other words, the graphite cylinder 2 is bonded in the radial groove 3 by the adhesive material. The specific installation mode is that the graphite cylinder 2 is fixedly inserted into the radial groove 3, and the contact part of the graphite cylinder 2 and the radial groove 3 is coated with adhesive material. In this embodiment, the adhesive material is anaerobic glue.

Example 3:

as shown in fig. 1, the die-casting punch comprises a base body 1, a plurality of radial grooves 3 are uniformly formed in the circumferential outer wall of the base body 1, and graphite cylinders 2 are detachably fixed and inserted in the radial grooves 3. The base body is made of H13 alloy steel material. The surface of the substrate 1 is nitrided and the thickness of the nitrided layer is more than 0.1 mm. The base body 1 is provided with an end part 4, and a liquid inlet through hole 5 and a liquid outlet through hole 6 which are axially arranged are arranged on the end part 4. The radial grooves 3 are of cylindrical configuration. Also, the base 1 has a cylindrical structure. The liquid inlet through hole 5 and the liquid outlet through hole 6 are parallel to each other and are communicated with each other. The joint of the graphite cylinder 2 and the radial groove 3 is coated with a bonding material. In other words, the graphite cylinder 2 is bonded in the radial groove 3 by the adhesive material. The specific installation mode is that the graphite cylinder 2 is fixedly inserted into the radial groove 3, and the contact part of the graphite cylinder 2 and the radial groove 3 is coated with adhesive material. In this embodiment, the adhesive material is anaerobic glue. In the present embodiment, the distance between two adjacent radial grooves 3 is 5-10 mm. The diameter of the radial groove is 3-5 mm, and the depth is also 3-5 mm. The diameter of the graphite cylinder is 3-5 mm.

Example 4:

as shown in fig. 1, the self-lubricating graphite die-casting punch comprises a base body 1, wherein a plurality of radial grooves 3 are uniformly formed in the circumferential outer wall of the base body 1, and graphite cylinders 2 are detachably and fixedly inserted into the radial grooves 3. The substrate is made of H13 alloy steel material, and the surface of the substrate 1 is subjected to nitriding treatment. The base body 1 is provided with an end part 4, and a liquid inlet through hole 5 and a liquid outlet through hole 6 which are axially arranged are arranged on the end part 4. The liquid inlet through hole 5 and the liquid outlet through hole 6 are used for the inlet and outlet of cooling liquid. The radial grooves 3 are of cylindrical configuration. Also, the base 1 has a cylindrical structure. The liquid inlet through hole 5 and the liquid outlet through hole 6 are parallel to each other and are communicated with each other. The joint of the graphite cylinder 2 and the radial groove 3 is coated with a bonding material. In other words, the graphite cylinder 2 is bonded in the radial groove 3 by the adhesive material. The specific installation mode is that the graphite cylinder 2 is fixedly inserted into the radial groove 3, and the contact part of the graphite cylinder 2 and the radial groove 3 is coated with adhesive material. In this embodiment, the adhesive material is anaerobic glue. In the present embodiment, the distance between two adjacent radial grooves 3 is 5-10 mm, preferably 8 mm. The diameter of the radial groove 3 is 3-5 mm, preferably 5 mm. The depth of the radial groove 3 is 4.5 mm. The graphite cylinders have a diameter of 3 to 5 mm, preferably 4.8 mm. The self-lubricating graphite die-casting punch in the embodiment is manufactured by the following steps of annealing H13 steel, machining holes in rough machining outer circles and inner holes, performing heat treatment, finishing external grinding, nitriding and inlaying graphite. The base body 1 is made of hot-work die steel H13, and the thickness of a nitriding layer is more than 0.1 mm through quenching tempering and nitriding processes. Since graphite has a lamellar structure, when an external force is applied to the graphite, slippage between layers is likely to occur. The graphite lubricating property mainly depends on the size of graphite flakes, and the larger the flakes are, the smaller the friction coefficient is, and the better the lubricating property is. Meanwhile, the graphite has the advantages of high temperature resistance, fatigue resistance, friction resistance and the like. Graphite has the irreplaceable advantage in the occasions where high lubricating performance is required. Therefore, the utility model discloses a die-casting drift has adopted the lubricated mode that graphite lubrication mode has replaced traditional die-casting drift to adopt drift oil and/or pellet oil. The lubricating mode effectively reduces the problem of air holes in the product caused by using the punch oil or the granular oil. Meanwhile, the graphite has very good lubricating property, so that the friction between the die-casting punch and the melting cup is reduced, the service life of the die-casting punch is prolonged, the frequency of replacing the die-casting punch is reduced, the working efficiency of a die-casting process is greatly improved, and the die-casting cost is also reduced.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are any simple modifications, equivalent changes and modifications made to the above embodiments, and still belong to the scope of the technical solution of the present invention.

After reading this specification, it will be apparent to those skilled in the art that the present invention is formed by a combination of prior art, and some of these prior art forming each part of the present invention are described in detail herein, and some are not described in detail for the sake of brevity of the specification, but will be known to those skilled in the art after reading this specification. Moreover, it will be appreciated by those skilled in the art that the combination of these prior art techniques to form the present invention is highly creative and is a crystal that has been analyzed theoretically and experimented for many years by the inventor. It will also be apparent to those skilled in the art from this disclosure that each of the embodiments disclosed herein, and any combination of features, can be incorporated into the present invention.

Claims

1. A die casting punch comprising a base body, characterized in that: a plurality of radial grooves are uniformly formed in the circumferential outer wall of the base body, and graphite cylinders are detachably and fixedly inserted into the radial grooves; the base body is made of H13 alloy steel material; the surface of the substrate is subjected to nitriding treatment, and the thickness of a nitriding layer is more than 0.1 mm; the end part of the base body is provided with a liquid inlet through hole and a liquid outlet through hole which are axially arranged; the liquid inlet through hole and the liquid outlet through hole are parallel to each other and are communicated with each other.

2. The die casting punch as claimed in claim 1, wherein: and a bonding material is coated at the joint of the graphite cylinder and the radial groove.

3. The die casting punch as claimed in claim 2, wherein: the radial groove is of a cylindrical structure.

4. The die casting punch as claimed in claim 1, wherein: the substrate is of a cylindrical structure.

5. The die casting punch as claimed in claim 1, wherein: the distance between two adjacent radial grooves is 5-10 mm.

6. The die casting punch as claimed in claim 1, wherein: the diameter of the radial groove is 3-5 mm.

7. The die casting punch as claimed in claim 1, wherein: the diameter of the radial groove is 5 mm.

8. The die casting punch as claimed in claim 1, wherein: the diameter of the graphite cylinder is 4.8 mm.

9. The die casting punch as claimed in claim 1, wherein: the diameter of the graphite cylinder is 3-5 mm.

10. The die casting punch as claimed in claim 2, wherein: the bonding material is anaerobic adhesive.

11. The die casting punch as claimed in claim 1, wherein: the distance between two adjacent radial grooves is 8 mm.

12. The die casting punch as claimed in claim 1, wherein: the depth of the radial groove is 3-5 mm.