Die for forming wear-resistant layer on surface of bearing part

Abstract

The utility model provides a die for forming a wear-resistant layer on the surface of a bearing part, and particularly relates to the technical field of bearing machining. The mold for forming the wear-resistant layer on the surface of the bearing part comprises a mold body and a mold pressing disc, the mold body is provided with a pouring cavity used for containing the bearing part, and an opening used for placing the bearing part is formed in the upper portion of the pouring cavity; the mold pressure plate is arranged at the opening and is provided with a liquid injection hole; wherein the pouring cavity is internally provided with a positioning structure used for positioning the bearing part, a gap is formed between the inner wall of the pouring cavity and the outer wall of the bearing part, and the gap is used for being filled with a liquid wear-resistant material to form the wear-resistant layer. The wear-resistant layer is poured on the surface of the bearing part through the mold, the high temperature resistance and wear resistance of the surface of the bearing part are improved, and the service life of the bearing part is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a mold used for forming a wear-resistant layer on the surface of a bearing part. Background Art

[0002] With the continuous development of industrial technology, the requirements for the safety, reliability and service life of metal materials in practical applications are getting higher and higher. Usually, in order to improve the high temperature resistance and wear resistance of the surface of bearing parts, improve the service life of bearings and extend the service life, bearing parts need to be strengthened after forming. The commonly used method for strengthening bearing parts is to attach a layer of SiO2 on the surface of bearing parts. In order to simplify the process flow, the strengthening process is carried out by pouring liquid SiO2 on the surface of the bearing. Therefore, a mold that matches the bearing part is required to complete the casting of the wear-resistant layer on the surface of the bearing part. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides a mold for forming a wear-resistant layer on the surface of a bearing part, so as to achieve surface strengthening of the bearing part.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a mold for forming a wear-resistant layer on the surface of a bearing part, the mold comprising a mold body and a mold pressure plate, the mold body is provided with a casting cavity for accommodating the bearing part, the top of the casting cavity has an opening for placing the bearing part; the mold pressure plate is arranged at the opening and has a liquid injection hole; wherein a positioning structure for positioning the bearing part is arranged in the casting cavity, a gap is provided between the inner wall of the casting cavity and the outer wall of the bearing part, and the gap is used to fill liquid wear-resistant material to form the wear-resistant layer.

[0005] In an example of the present invention, a gap between the inner wall of the casting cavity and the bearing component is 1 to 1.5 mm.

[0006] In an example of the present invention, the mold body includes a bottom plate and side plates arranged along the circumference of the bottom plate, and the bottom plate and the side plates cooperate to form a casting cavity.

[0007] In an example of the present invention, the bottom plate is annular, and the side plate includes a first side plate and a second side plate, the first side plate is arranged along the outer periphery of the bottom plate, and the second side plate is arranged along the inner periphery of the bottom plate.

[0008] In an example of the present invention, the mold body further includes a connecting plate, the connecting plate is arranged at an end of the second side plate away from the bottom plate, and the connecting plate is fixedly connected to the second side plate.

[0009] In an example of the present invention, the mold pressure plate is annular and matches the connecting plate, the inner periphery of the mold pressure plate overlaps the second side plate, and the outer periphery of the mold pressure plate overlaps the first side plate.

[0010] In an example of the present invention, a convex portion is provided on the first side plate, the inner side of the mold pressing plate abuts against the connecting plate, and the outer side of the mold pressing plate abuts against the convex portion.

[0011] In an example of the present invention, the mold for forming the wear-resistant layer on the surface of the bearing part further includes a cooling cavity, and the cooling cavity is located on a side of the second side plate away from the casting cavity.

[0012] In an example of the present invention, the positioning structure includes a plurality of protrusions, and the plurality of protrusions are evenly distributed along the inner wall of the casting cavity.

[0013] In an example of the present invention, the mold body is cylindrical.

[0014] The utility model provides a mold for forming a wear-resistant layer on the surface of a bearing part. A casting cavity matching the bearing part is arranged in a mold body, the bearing part is placed in the casting cavity, and liquid wear-resistant material is cast into the gap between the bearing part and the casting cavity to form a wear-resistant layer on the surface of the bearing part, thereby improving the high temperature resistance and wear resistance of the surface of the bearing part and extending the service life of the bearing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a mold for forming a wear-resistant layer on the surface of a bearing part in one embodiment of the utility model;

[0017] Figure 2 It is a top view schematic diagram of a mold for forming a wear-resistant layer on the surface of a bearing part of the utility model in one embodiment;

[0018] Figure 3 It is a structural schematic diagram of a mold pressure plate in one embodiment of a mold for forming a wear-resistant layer on the surface of a bearing part of the utility model;

[0019] Figure 4 for Figure 1 A partial enlarged schematic diagram of area A in the middle.

[0020] Component number description

[0021] 100, mold body; 110, bottom plate; 120, side plate; 121, first side plate; 1211, convex part; 122, second side plate; 130, connecting plate; 200, mold pressure plate; 210, injection hole; 300, casting cavity; 310, protrusion; 311, first protrusion; 312, second protrusion; 400, bearing part; 500, cooling cavity. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0023] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0024] See also Figure 1 and Figure 4 The utility model provides a mold for forming a wear-resistant layer on the surface of a bearing part. The mold includes a mold body 100 and a mold pressure plate 200. The mold is used to form a wear-resistant layer on the surface of a bearing part 400 to extend the service life of the bearing part 400.

[0025] The mold body 100 is provided with a casting cavity 300 for accommodating a bearing part 400, and an opening is provided above the casting cavity 300 for placing the bearing part 400. The shape of the mold body 100 is not limited in the present application, and the mold body 100 can be any three-dimensional structure, such as a cuboid, a cube, or a cylinder. In one embodiment, the shape of the mold body 100 is a cylinder. The shape of the casting cavity 300 is adaptively adjusted according to the shape of the bearing part 400. For example, if the shape of the bearing part 400 is a cube, the casting cavity 300 is a cube, and if the shape of the bearing part 400 is a sphere, the casting cavity 300 is a sphere.

[0026] The mold platen 200 is arranged at the opening of the casting cavity 300 and has a liquid injection hole 210 for injecting wear-resistant material into the casting cavity 300. A positioning structure for positioning the bearing part 400 is arranged in the casting cavity 300. There is a gap between the inner wall of the casting cavity 300 and the outer wall of the bearing part 400, and the gap is used to fill the liquid wear-resistant material to form a wear-resistant layer on the surface of the bearing part 400. In the present application, the gap between the inner wall of the casting cavity 300 and the outer wall of the bearing part 400 is adjusted according to actual production requirements. For example, the gap between the inner wall of the casting cavity 300 and the outer wall of the bearing part 400 is 1 to 1.5 mm, such as 1 mm, 1.3 mm or 1.5 mm.

[0027] See also Figure 1 The mold body 100 includes a bottom plate 110 and a side plate 120 arranged along the circumference of the bottom plate 110, and the bottom plate 110 and the side plate 120 cooperate to form a casting cavity 300. In one embodiment, the bottom plate 110 is annular, and the side plate 120 includes a first side plate 121 and a second side plate 122, the first side plate 121 is arranged along the outer periphery of the bottom plate 110, and the second side plate 122 is arranged along the inner periphery of the bottom plate 110. In other embodiments, the mold body 100 also includes a connecting plate 130, the connecting plate 130 is arranged at one end of the second side plate 122 away from the bottom plate 110, and the connecting plate 130 is fixedly connected to the second side plate 122. The shape of the connecting plate 130 is not limited in the present application, for example, the cross-section of the connecting plate 130 in the horizontal direction can be square, rectangular or circular.

[0028] See also Figure 1 and Figure 3In one embodiment, the mold platen 200 is an annular structure that cooperates with the connecting plate 130, the inner periphery of the mold platen 200 overlaps the second side plate 122, and the outer periphery of the mold platen 200 overlaps the first side plate 121. The number of injection holes 210 on the mold platen 200 can be any number, such as one, two, three or more, and is adaptively adjusted according to actual needs. For example, when the volume of the bearing part 400 is small, the number of injection holes 210 can be one. If the volume of the bearing part 400 is large, in order to ensure uniform casting of the wear-resistant material, a plurality of injection holes 210 are provided on the mold platen 200, and the plurality of injection holes 210 are evenly distributed along the circumference of the mold platen 200. Exemplarily, four injection holes 210 are provided on the mold platen 200. Preferably, a convex portion 1211 is provided on the first side plate 121 , and the inner side of the mold pressing plate 200 abuts against the connecting plate 130 , and the outer side of the mold pressing plate 200 abuts against the convex portion 1211 , so as to prevent the mold pressing plate 200 from moving on the mold body 100 .

[0029] See also Figure 1 , Figure 2 and Figure 4 In one embodiment, the positioning structure includes a plurality of protrusions 310, and the plurality of protrusions 310 are evenly distributed on the inner wall of the casting cavity 300. A plurality of protrusions 310 are provided on both the side plate 120 of the casting cavity 300 and the bottom plate 110 of the casting cavity 300, and the protrusions on the side plate 120 are recorded as first protrusions 311, and the protrusions on the bottom plate 110 are recorded as second protrusions 312. The first protrusion 311 can be provided on one side of the casting cavity 300, or on both sides of the casting cavity 300. Specifically, the first protrusion 311 can be provided on the side wall of the first side plate 121, or on the side wall of the second side plate 122, or on the side walls of the first side plate 121 and the second side plate 122 at the same time, and the number of the first protrusions 311 is at least two. Exemplarily, the number of the first protrusions 311 is four, and the four first protrusions 311 are evenly distributed on the inner wall of the first side plate 121.

[0030] The number of the second protrusions 312 is also at least two, and the second protrusions 312 are evenly distributed on the bottom plate 110. Exemplarily, in this embodiment, the number of the second protrusions 312 is four, and the four second protrusions 312 are evenly distributed along the circumference of the bottom plate 110. In other embodiments, the number of the second protrusions 312 may also be three, five or more.

[0031] See also Figure 1The mold for forming a wear-resistant layer on the surface of the bearing part also includes a cooling chamber 500, which is used to cool the liquid wear-resistant material so that the wear-resistant material is solidified on the surface of the bearing part 400. The cooling chamber 500 is located on the side of the second side plate 122 away from the casting chamber 300. In one embodiment, the structure of the cooling chamber 500 is composed of a connecting plate 130 and a second side plate 122. The bottom of the cooling chamber 500 is open, and a coolant is sprayed into the cooling chamber 500. The coolant cools the wear-resistant material and then evaporates. In other embodiments, a baffle is provided on the inner periphery of the bottom plate 110, and the baffle is sealed and connected to the bottom plate 110. The baffle, the connecting plate 130 and the second side plate 122 enclose the cooling chamber 500. The baffle and the bottom plate 110 can be an integral structure or a split structure. An opening for injecting coolant is provided on the connecting plate 130 , and a coolant outlet is provided on the baffle plate. After the liquid wear-resistant material is injected into the casting cavity 300 , coolant is injected into the cooling cavity 500 , so that the liquid wear-resistant material is rapidly cooled and solidified on the surface of the bearing part 400 .

[0032] The utility model provides a mold for forming a wear-resistant layer on the surface of a bearing part, a casting cavity matching the bearing part is arranged on the surface of the mold, the bearing part is placed in the casting cavity, and liquid wear-resistant material is cast into the gap between the bearing part and the casting cavity to form a wear-resistant layer on the surface of the bearing part, improve the high temperature resistance and wear resistance of the surface of the bearing part, and extend the service life of the bearing part. Therefore, the utility model effectively overcomes some practical problems in the prior art, and thus has high utilization value and use significance.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A mold for forming a wear-resistant layer on the surface of a bearing part, characterized in that: include: A mold body, wherein the mold body is provided with a casting cavity for accommodating a bearing part, and an opening is provided above the casting cavity for placing the bearing part; A mold pressing plate, arranged at the opening and having a liquid injection hole; Wherein, a positioning structure for positioning the bearing part is arranged in the casting cavity, and there is a gap between the inner wall of the casting cavity and the outer wall of the bearing part, and the gap is used to fill the liquid wear-resistant material to form the wear-resistant layer.

2. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 1, characterized in that: The gap between the inner wall of the casting cavity and the bearing part is 1 to 1.5 mm.

3. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 1, characterized in that: The mold body comprises a bottom plate and side plates arranged along the circumference of the bottom plate, and the bottom plate and the side plates cooperate to form a casting cavity.

4. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 3, characterized in that: The bottom plate is annular, and the side plate includes a first side plate and a second side plate. The first side plate is arranged along the outer periphery of the bottom plate, and the second side plate is arranged along the inner periphery of the bottom plate.

5. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 4, characterized in that: The mold body further comprises a connecting plate, which is arranged at one end of the second side plate away from the bottom plate, and the connecting plate is fixedly connected to the second side plate.

6. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 5, characterized in that: The mold pressing plate is annular and matches the connecting plate. The inner periphery of the mold pressing plate overlaps the second side plate, and the outer periphery of the mold pressing plate overlaps the first side plate.

7. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 5, characterized in that: The first side plate is provided with a convex portion, the inner side of the mold pressing plate abuts against the connecting plate, and the outer side of the mold pressing plate abuts against the convex portion.

8. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 6, characterized in that: The mold for forming a wear-resistant layer on the surface of a bearing part further comprises a cooling cavity, and the cooling cavity is located on a side of the second side plate away from the casting cavity.

9. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 1, characterized in that: The positioning structure includes a plurality of protrusions, and the plurality of protrusions are evenly distributed along the inner wall of the casting cavity.

10. The mold for forming a wear-resistant layer on the surface of a bearing part according to claim 1, characterized in that: The mold body is cylindrical.

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