CN214053576U - Core box for casting brake disc - Google Patents
Core box for casting brake disc Download PDFInfo
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- CN214053576U CN214053576U CN202022579767.8U CN202022579767U CN214053576U CN 214053576 U CN214053576 U CN 214053576U CN 202022579767 U CN202022579767 U CN 202022579767U CN 214053576 U CN214053576 U CN 214053576U
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- core box
- brake disc
- exhaust
- sand
- upper core
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Abstract
The utility model provides a core box is used in brake disc casting to improve the not real problem of sand is penetrated in the preparation process to current brake disc psammitolite. Core box for brake disc casting includes: a lower core box and an upper core box. The upper core box is arranged on the lower core box, and a brake disc sand core cavity is arranged between the upper core box and the lower core box; the upper core box is provided with a molding sand inlet and at least one exhaust channel; the molding sand inlet is communicated with the brake disc sand core cavity, one end of the exhaust channel is communicated with the brake disc sand core cavity, and the other end of the exhaust channel is arranged in the upper core box or extends along the matching surface of the upper core box and the sand blasting machine, and the outer side of the matching surface is communicated with the atmosphere. The utility model discloses can effectively improve and penetrate the not real problem of sand.
Description
Technical Field
The utility model relates to a casting equipment field, concretely relates to core box is used in brake disc casting.
Background
The core box for casting the brake disc is a core box for making the core and is a very important process in the casting production process. With the continuous development of the foundry industry, customers have higher and higher requirements on castings, which puts forward higher requirements on how to improve the quality of the castings, in the industry at present, the situations of sand shooting unreality easily occur in the core making process of some sand core bosses, the produced sand cores do not meet good quality requirements, and the sand cores are required to be manually maintained sometimes, so that the quality of the sand cores is influenced, and the production efficiency of the sand cores is reduced. Therefore, the novel core box for casting the brake disc is needed to be provided to solve the problem that the existing sand core of the brake disc is not solid in the process of manufacturing the sand core.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings in the prior art, an object of the present invention is to provide a core box for casting a brake disc to improve the problem of unrealistic sand shooting of the sand core of the brake disc in the manufacturing process.
In order to achieve the above objects and other related objects, the present invention provides a core box for casting a brake disc, including:
a lower core box;
the upper core box is arranged on the lower core box, and a brake disc sand core cavity is arranged between the upper core box and the lower core box; the upper core box is provided with a molding sand inlet and at least one exhaust channel;
the molding sand inlet is communicated with the brake disc sand core cavity, one end of the exhaust channel is communicated with the brake disc sand core cavity, and the other end of the exhaust channel is arranged in the upper core box or extends along the matching surface of the upper core box and the sand blasting machine and is communicated with the atmosphere outside the matching surface.
The utility model discloses an in the example, go up the core box and include last core box body and fender dish, exhaust passage includes exhaust hole, first exhaust recess, second exhaust recess and third exhaust recess, the exhaust hole sets up go up on the core box body, first exhaust recess sets up on the fender dish, second exhaust recess sets up go up on the face of cylinder of core box body, third exhaust recess sets up go up on the fitting end face of core box body.
In an example of the present invention, a vent plug is installed in the vent hole.
The utility model discloses an in the example, keep off and correspond on the dish the position in exhaust hole is provided with the core vent and changes the mouth, demountable installation has the shutoff body on the core vent installing port.
In an example of the present invention, the plugging body is screwed to the vent plug replacement port.
In an example of the present invention, the core box body and the baffle plate are provided with a positioning structure therebetween.
In an example of the present invention, the positioning structure includes a coaxial positioning structure and an axial positioning structure.
In an example of the present invention, the blocking plate is installed on the upper core box body by bolting.
In an example of the present invention, the first exhaust groove, the second exhaust groove and the third exhaust groove have a groove depth of 1-2 mm and a width of 40-50 mm.
In an example of the present invention, the exhaust passage is provided in plurality and is circumferentially and evenly distributed around the axis of the brake disc.
As above, the utility model discloses in be provided with exhaust passage on the core box, at the sandblast in-process, gas in the die cavity can be discharged through exhaust passage, can effectively improve the problem that the sand shooting is unreal, in addition the utility model discloses well exhaust passage is in go up the core box inside or follow go up the core box and extend with the fitting surface of sand blasting machine, and the fitting surface outside is linked together with the atmosphere, can effectively avoid blockking up exhaust passage in the sand blasting in-process gravel enters into exhaust passage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a top view of another embodiment of the present invention;
FIG. 3 is a view taken along line A-A of FIG. 2;
fig. 4 is a partial view of the region I in fig. 3.
Description of the element reference numerals
10 lower core box
20 go up core box
201 cylindrical surface
202 mating end face
21 exhaust passage
211 exhaust hole
212 first exhaust groove
213 second exhaust groove
214 third vent groove
22 brake disc sand core cavity
23 sand inlet
210 core box
220 catch tray
221 coaxial positioning structure
222 axial positioning structure
30 mounting rack of sand blasting machine
40 air exhaust plug
50 plugging body
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the present invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any number between the endpoints are optional unless the utility model discloses otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and are intended to describe the same, and all methods, apparatus and materials similar or equivalent to those described herein may be used in the practice of this invention.
Referring to fig. 1 to 4, an object of the present invention is to provide a core box for casting a brake disc, so as to solve the problem of unrealistic sand shooting during the manufacturing process of the conventional sand core for the brake disc.
Referring to fig. 1 and 3, the core box for casting a brake disc of the present invention includes: a lower core box 10 and an upper core box 20. An upper core box 20 is arranged on the lower core box 10, and a brake disc sand core cavity 22 is arranged between the upper core box 20 and the lower core box 10; the upper core box 20 is provided with a circular sand inlet 23 and at least one air vent passage 21. The molding sand inlet 23 and the brake disc sand core cavity 22 are coaxially arranged and communicated with the brake disc sand core cavity 22, one end of the exhaust channel 21 is communicated with the brake disc sand core cavity 22, and the other end of the exhaust channel 21 is arranged inside the upper core box 20 or along the matching surface between the upper core box 20 and the sand blasting machine mounting frame 30 and communicated with the atmosphere outside the matching surface.
Referring to fig. 1, in an example of the present invention, the upper core box 20 is an integrated structure, the upper core box 210 is provided with a matching cylindrical surface 201 and a matching end surface 202 matching with the sand-blasting machine mounting frame 30, the exhaust channel 21 is disposed inside the upper core box 210, one end of the exhaust channel 21 is communicated with the brake disc sand core cavity 22, and the other end of the exhaust channel 21 is disposed on a wall body outside the matching end surface 202.
Referring to fig. 2 to 4, in an example of the present invention, the upper core box 20 is a split structure, and specifically includes an upper core box 210 and a baffle disc 220, the upper core box 210 is provided with a matching cylindrical surface 201 and a matching end surface 202 matching with the sand-blasting machine mounting frame 30, the baffle disc 220 is detachably mounted on the upper core box 210, a first matching surface of the baffle disc 220 facing away from the sand-blasting machine contacts with a second matching surface of the upper core box 210 facing towards the sand-blasting machine, the exhaust channel 21 includes an exhaust hole 211, a first exhaust groove 212, a second exhaust groove 213 and a third exhaust groove 214, the exhaust hole 211 is provided on the upper core box 210 and extends vertically upward, the first exhaust groove 212 is provided on the first matching surface of the baffle disc 220 and is communicated with the exhaust hole 211, the second exhaust groove 213 is provided on the matching surface 201 of the upper core box 210, and is communicated with the first exhaust groove 212, the third exhaust groove 214 is disposed on the mating surface 202 of the upper core case 210, and is communicated with the second exhaust groove 213, and an outlet of the third exhaust groove 214 is disposed on an outer sidewall of the mating surface 202.
Referring to fig. 4, in order to prevent the sand in the cavity from escaping from the exhaust hole 211, in an example of the present invention, an exhaust plug 40 is installed in the exhaust channel 21. The vent plug 40 is installed in the vent hole 211 of the upper cartridge body 210. In view of replacement and maintenance, the utility model discloses an example, correspond on the fender dish 220 the position of exhaust hole 211 is provided with the core vent and changes the mouth, removable mounting has shutoff body 50 on the core vent changes the mouth. The shutoff body 50 can adopt all suitable means to carry out demountable installation, elasticity interference plugging, ring flange bolt fastening etc. for example, nevertheless the utility model discloses an in the example, be provided with the external screw thread on the shutoff body 50, be provided with in the core hole is changed to the core vent with the internal thread that the external screw thread matches, 50 threaded connection of shutoff body are installed on the core vent is changed the mouth.
The utility model discloses well core box body 210 is in installation form on the fender dish 220 can not receive the injecing, can be for can be with the suitable form of first fitting surface and second fitting surface tight fit the utility model discloses an example, go up core box body 210 with be provided with location structure between the fender dish 220. When the baffle disc 220 is installed, the positioning can be quickly and accurately carried out, and the positioning is convenient and quick.
Referring to fig. 4, the positioning structure of the present invention may be any suitable positioning form capable of positioning and installing between the baffle disc 220 and the upper core box 210, and in an example of the present invention, the positioning structure includes a coaxial positioning structure 221 and an axial positioning structure 222. The coaxial positioning structure 221 includes an outer cylindrical surface 201 disposed on the upper cartridge body 210 and an inner cylindrical surface 201 disposed on the baffle disc 220, and the outer cylindrical surface 201 and the inner cylindrical surface 201 are matched. In an example of the present invention, the axial positioning structure 222 is the first fitting surface and the second fitting surface, and the first fitting surface is tightly mounted on the second fitting surface to realize axial positioning.
The installation mode of the blocking disc 220 on the upper core box 20 may not be limited, such as welding, riveting, etc. in an example of the present invention, the blocking disc 220 is installed on the upper core box body 210 through the bolt 60, and can be detached to clean the exhaust holes 211 when necessary.
In view of the large fitting surface and the limited height of the upper core box 210, in order not to affect the strength of the upper core box 20, in an example of the present invention, the plurality of exhaust passages 21 are provided and are circumferentially and uniformly distributed around the axis of the brake disc. The groove depth of the first exhaust groove 212, the second exhaust groove 213 and the third exhaust groove 214 is 1-2 mm, and the width is 40-50 mm.
As above, the utility model discloses in be provided with exhaust passage on the core box, at the sandblast in-process, gas in the die cavity can be discharged through exhaust passage, can effectively improve the problem that the sand shooting is unreal, in addition the utility model discloses well exhaust passage is in go up the core box inside or follow go up the core box and extend with the fitting surface of sand blasting machine, and the fitting surface outside is linked together with the atmosphere, can effectively avoid blockking up exhaust passage in the sand blasting in-process gravel enters into exhaust passage. Therefore, the utility model discloses thereby effectively overcome some practical problems among the prior art and had very high use value and use meaning.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A core box for casting a brake disc is characterized by comprising:
a lower core box;
the upper core box is arranged on the lower core box, and a brake disc sand core cavity is arranged between the upper core box and the lower core box; the upper core box is provided with a molding sand inlet and at least one exhaust channel;
the molding sand inlet is communicated with the brake disc sand core cavity, one end of the exhaust channel is communicated with the brake disc sand core cavity, and the other end of the exhaust channel is arranged in the upper core box or extends along the matching surface of the upper core box and the sand blasting machine and is communicated with the atmosphere outside the matching surface.
2. The brake disc casting core box of claim 1, wherein the upper core box comprises an upper core box body and a shield disc, the exhaust channel comprises an exhaust hole, a first exhaust groove, a second exhaust groove and a third exhaust groove, the exhaust hole is arranged on the upper core box body, the first exhaust groove is arranged on the shield disc, the second exhaust groove is arranged on a cylindrical surface of the upper core box body, and the third exhaust groove is arranged on a matching end surface of the upper core box body.
3. The brake disc casting core box of claim 2, wherein a vent plug is mounted in the vent hole.
4. The core box for casting the brake disc according to claim 3, wherein a vent plug replacing opening is formed in the position, corresponding to the vent hole, of the baffle disc, and a plugging body is detachably mounted on the vent plug mounting opening.
5. The brake disc casting core box according to claim 4, wherein the plugging body is threadedly mounted on the vent plug replacement port.
6. The brake disc casting core box of claim 2, wherein a locating structure is disposed between the upper core box body and the baffle disc.
7. The brake disc casting core box of claim 6, wherein the locating structure comprises a coaxial locating structure and an axial locating structure.
8. The brake disc casting core box of claim 2, wherein the shield disc is bolted to the upper core box body.
9. The brake disc casting core box according to claim 2, wherein the first exhaust groove, the second exhaust groove and the third exhaust groove have a groove depth of 1 to 2mm and a width of 40 to 50 mm.
10. The brake disc casting core box according to claim 1, wherein the plurality of exhaust passages are provided and are evenly distributed in a circumferential direction around an axis of the brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022579767.8U CN214053576U (en) | 2020-11-10 | 2020-11-10 | Core box for casting brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022579767.8U CN214053576U (en) | 2020-11-10 | 2020-11-10 | Core box for casting brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214053576U true CN214053576U (en) | 2021-08-27 |
Family
ID=77400173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022579767.8U Active CN214053576U (en) | 2020-11-10 | 2020-11-10 | Core box for casting brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214053576U (en) |
-
2020
- 2020-11-10 CN CN202022579767.8U patent/CN214053576U/en active Active
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