CN207325888U - A kind of arbor connection structure - Google Patents
A kind of arbor connection structure Download PDFInfo
- Publication number
- CN207325888U CN207325888U CN201721073594.4U CN201721073594U CN207325888U CN 207325888 U CN207325888 U CN 207325888U CN 201721073594 U CN201721073594 U CN 201721073594U CN 207325888 U CN207325888 U CN 207325888U
- Authority
- CN
- China
- Prior art keywords
- arbor
- hole
- crab
- contiguous block
- connection structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005266 casting Methods 0.000 abstract description 7
- 239000004576 sand Substances 0.000 abstract description 7
- 210000000988 bone and bone Anatomy 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model discloses a kind of arbor connection structure, including contiguous block, crab is inserted into contiguous block, since the size of through hole is slightly larger than main core bone size, conveniently crab is inserted into through hole.Secondary arbor is threaded into screw hole again, the end of secondary arbor is withstood on the sidepiece of crab, preventing from shaking there are gap between crab and contiguous block causes sand core cracked, then puts the manufacturing process that sand completes sand core again.First revolute arbor is needed during cleaning, it is extracted crab out after exiting screw hole, contiguous block is taken out by the hole above casting structure, so as to complete the taking-up work of arbor.Contiguous block and crab, secondary arbor all in sand encirclement, may be reused.
Description
Technical field
It the utility model is related to a kind of arbor connection structure.
Background technology
Sand core is used for being formed the inner-cavity structure of casting, is largely surrounded in casting mold by the liquid metal of high temperature, and core
Bone is a kind of made of metal skeleton, being placed in sand core to improve the strength and stiffness of sand core in casting.
Traditional arbor has two kinds of overall arbor or split arbor.Overall arbor is to use round steel or screw-thread steel integrally bending system
Into, or be welded together to form round steel or screw-thread steel by the way of electric welding.Split arbor refers to arbor being divided into two parts
Or several parts, the mode being then stitched together during coremaking.For the complex sand core of structure, integral core is used
Bone can only often solve the strength and stiffness problems of sand core, but the limitation due to casting structure in scale removal process causes arbor
It cannot take out.And use split arbor, although taken out during cleaning it is more convenient, in foundry production by
Easily connect in sand core in transhipment, the stress during lower core and the buoyancy for bearing during cast iron liquid, sand core in arbor
Socket part position is broken, the defects of causing disconnected core, core floatation.
Utility model content
The technical problems to be solved in the utility model is in view of the foregoing drawbacks, there is provided a kind of arbor connection structure, the arbor
Connection structure ensure that the intensity of sand core, and take out sand core during being convenient to clean.
In order to solve the above-mentioned technical problem, the utility model includes contiguous block, and the middle part of the contiguous block is equipped with through hole, institute
State and crab is fitted with through hole, the sidepiece of the contiguous block is equipped with the screw hole with perforation in the middle part of through hole, and pair is bolted with screw hole
Arbor.
The opposite both ends of the surface of the through hole through connection block.
The through hole is vertically arranged with screw hole.
The diameter of the through hole is more than the diameter of crab.
The end of the pair arbor is equipped with external screw thread, and the externally threaded length is more than the depth of screw hole.
The end of the pair arbor is located at the sidepiece in through hole with crab and holds out against.
Using the above scheme after the advantages of effect be：Crab is inserted into contiguous block, since the size of through hole is slightly larger than master
Arbor size, therefore conveniently crab is inserted into through hole.Secondary arbor is threaded into screw hole again, is made
The end of secondary arbor withstands on the sidepiece of crab, and preventing from shaking there are gap between crab and contiguous block causes sand core to go out
Existing crackle, then puts the manufacturing process that sand completes sand core again.
First revolute arbor is needed during cleaning, it is extracted crab out after exiting screw hole, contiguous block passes through casting
The hole of structure is taken out, so as to complete the taking-up work of arbor.Contiguous block and crab, secondary arbor all in sand encirclement,
It may be reused.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of contiguous block；
Fig. 3 is the bottom view of Fig. 2.
Embodiment
As shown in Figure 1-Figure 3, which includes contiguous block 3, and the middle part of contiguous block 3 is equipped with through hole 31, through hole
The opposite both ends of the surface of 31 through connection blocks 3, the center line of through hole 31 are overlapped with the center line between 3 both ends of contiguous block.This implementation
Through hole 31 is circular hole in example.Crab 1 is fitted with through hole 31, the diameter of through hole 31 is more than the diameter of crab 1, easy to lead
Arbor 1 is inserted into through hole 31.The sidepiece of contiguous block 3 is equipped with the screw hole 32 with the perforation of the middle part of through hole 31, and through hole 31 hangs down with screw hole 32
It is straight to set.Secondary arbor 2 is bolted with screw hole 32.32 inner wall of screw hole is equipped with internal thread in the present embodiment, and the end of secondary arbor 2 is set
There is the external screw thread with screw-internal thread fit, externally threaded length is more than the depth of screw hole 32, is so conveniently adjusted what secondary arbor 2 screwed in
Length.Screw that secondary arbor 2 can make the end of secondary arbor 2 and crab 1 is located at a sidepiece top in through hole 31 in the present embodiment
Tightly.
During coremaking, certain thickness sand is laid with core box bottom first, ensures that contiguous block 3 is fully enclosed in sand core and works as
In.Crab 1 is inserted into contiguous block 3, since the size of through hole 31 is slightly larger than 1 size of crab, is conveniently inserted crab 1
Enter in through hole 31.Secondary arbor 2 is threaded into screw hole 32 again, the end of secondary arbor 2 is withstood on main core
The sidepiece of bone 1, preventing from shaking there are gap between crab 1 and contiguous block 3 causes sand core cracked, then puts sand again
Complete the manufacturing process of sand core.
First revolute arbor 2 is needed during cleaning, it is extracted crab 1 out after exiting screw hole 32, contiguous block 3 passes through
Hole above casting structure is taken out, so as to complete the taking-up work of arbor.Contiguous block 3 and crab 1, secondary arbor in the present embodiment
2 all in sand encirclement, may be reused.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art, are not departing from the utility model
On the premise of spirit and scope, some change and modification can be done.The scope of protection of the utility model should be with the utility model
Subject to claim.
Claims (6)
1. a kind of arbor connection structure, it is characterized in that：Including contiguous block（3）, the contiguous block（3）Middle part be equipped with through hole
（31）, the through hole（31）Inside it is fitted with crab（1）, the contiguous block（3）Sidepiece be equipped with and through hole（31）Middle part penetrates through
Screw hole（32）, screw hole（32）Inside it is bolted with secondary arbor（2）.
2. arbor connection structure according to claim 1, it is characterized in that：The through hole（31）Through connection block（3）Relatively
Both ends of the surface.
3. arbor connection structure according to claim 2, it is characterized in that：The through hole（31）With screw hole（32）Vertically set
Put.
4. arbor connection structure according to claim 1, it is characterized in that：The through hole（31）Diameter be more than crab
（1）Diameter.
5. arbor connection structure according to claim 1, it is characterized in that：The pair arbor（2）End be equipped with external screw thread,
The externally threaded length is more than screw hole（32）Depth.
6. arbor connection structure according to claim 5, it is characterized in that：The pair arbor（2）End and crab（1）
Positioned at through hole（31）An interior sidepiece is held out against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721073594.4U CN207325888U (en) | 2017-08-25 | 2017-08-25 | A kind of arbor connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721073594.4U CN207325888U (en) | 2017-08-25 | 2017-08-25 | A kind of arbor connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207325888U true CN207325888U (en) | 2018-05-08 |
Family
ID=62374455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721073594.4U Expired - Fee Related CN207325888U (en) | 2017-08-25 | 2017-08-25 | A kind of arbor connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207325888U (en) |
-
2017
- 2017-08-25 CN CN201721073594.4U patent/CN207325888U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |