CN107350426A - A kind of blank preparation method of bearing block - Google Patents
A kind of blank preparation method of bearing block Download PDFInfo
- Publication number
- CN107350426A CN107350426A CN201710474918.3A CN201710474918A CN107350426A CN 107350426 A CN107350426 A CN 107350426A CN 201710474918 A CN201710474918 A CN 201710474918A CN 107350426 A CN107350426 A CN 107350426A
- Authority
- CN
- China
- Prior art keywords
- bearing block
- mould
- die cavity
- precoated sand
- arenaceous shell
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/04—Pattern plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of blank making method of bearing block, belongs to plant equipment production field, comprises the following steps：First, according to the design drawing of bearing block, bearing block is divided into two parts up and down, separately designs manufacture bearing block precoated sand mould；2nd, the precoated sand mould of bearing block is put on automatic moulding machine and produces precoated sand cast arenaceous shell model；3rd, pour into a mould；4th, take out and casting and clear up, there is the production that can efficiently realize bearing block blank, save material and artificial, reduce machining amount, reduce casting flaw, improve yield rate, the characteristics of easily realizing automated production.
Description
Technical field
The invention belongs to plant equipment production field, more particularly to a kind of blank making method of bearing block.
Background technology
Bearing block is the support member of bearing, generally into case shape；As shown in figure 1, bearing block inner chamber needs to adapt to bearing
The shape of outer ring, bearing block shell need to adapt to various installation environments, so its structure and shape matching are complicated, its producer is big
More method production blanks using metal casting, then it is being machined, to obtain more preferable stability and processing essence
Degree；Existing bearing block blank is cast using cast iron mostly, and its casting method is first according to bearing block design drawing, choosing
Select suitable die joint, make profile and bearing block shape identical built-up pattern, this built-up pattern mostly using die joint as
Faying face of the boundary as built-up pattern, this model is mostly wooden or aluminum is to carry and to process；Second, by model
Sandbox is put into, foundry sand is inserted and tamps, sandbox is separated into taking-up model, shape is formed among the sand in sandbox
With model identical cavity, then produce pouring channel and rising head just complete casting before sand mold make；3rd, sand mold is entered
After the appropriate drying of row, sandbox is closed up, casting molten metal is poured into from pouring channel；4th, sandbox is removed after cooling, will
Sand mold crushes, and takes out casting, takes out cast gate and rising head, just completes the making of bearing block blank；Because molten iron is poured into sand mold
When, there is expansive force to sand mold in molten iron, and sand mold is relatively soft, will cause the shape of sand mold inner chamber produces to change, and this change
Change is uncertain, and the appearance and size for the blank for resulting in casting out is not known；The characteristics of due to process above, its casting method
Have that the operation amount of labour is big, it is high to the skilled operation skill set requirements of worker, it is desirable to which that working area is big, and operating environment is poor, powder
Dirt is big, and cast(ing) surface material roughness value is high, and reserved processing capacity is big, waste of raw materials, flexible type, the defects such as qualified yield rate is low.
The content of the invention
A kind of blank making side of bearing block is proposed for above mentioned problem, the present invention existing for the production of existing bearing block blank
Method, it is characterised in that：Comprise the following steps：First, according to the design drawing of bearing block, bearing block is divided into two parts up and down, point
She Jizhizao not bearing block precoated sand mould；2nd, the precoated sand mould of bearing block is put on automatic moulding machine and produces overlay film
Sand pours into a mould arenaceous shell model；3rd, pour into a mould；4th, take out casting and clear up.
Bearing block precoated sand mould described in described step one refers to be used to make sand using ferrous materials are manufactured
The mould of shell model；It is characterized in that：Including upper mould, lower mould；Described upper mould is used for the shape for making the top of bearing block；Institute
The lower mould stated is used for the shape for making the bottom of bearing block；After described upper mould closes up with lower mould, complete bearing block is formed
Overall shape.
Described upper mould, it is characterised in that：Including cope plate, upper outer die cavity, upper interior die cavity, positioning hole, sand inlet, ventilation
Hole, mounting hole, gate core, rising head core；Described cope plate is located at the periphery of upper outer die cavity, is made up of ferrous materials；Described
Upper outer die cavity is located on the outside of the inside of cope plate；The shape of described upper outer die cavity and the outer loop-shaped on the die joint top of arenaceous shell
It is identical；The size of described upper outer die cavity is equal to appearance and size the setting plus arenaceous shell of the outer perimeter section on the die joint top of arenaceous shell
Count thickness；Described upper interior die cavity is located at the interior of cope plate；The described shape of upper interior die cavity and the die joint of arenaceous shell
The interior loop-shaped on top is identical；The size of described upper interior die cavity is equal to the profile chi of the inner round portion on the die joint top of arenaceous shell
The very little design thickness plus arenaceous shell；The quantity of described upper interior die cavity has four, is uniformly arranged in described upper outer die cavity
Side；Described positioning hole is located on cope plate, and after being aligned with the positioning hole in lower template, its interior chamber size forms arenaceous shell size and added
Upper arenaceous shell thickness；Described sand inlet is arranged on the cope plate on outer die cavity top, at the same with upper external form intracavitary portion and
Upper inner mold intracavitary portion connection；Described passage is arranged on cope plate, and the overflow between upper outer die cavity and upper interior die cavity is led to
Road connects；Described mounting hole is arranged on cope plate, is matched with the installing plate of automatic arenaceous shell forming machine；Described gate core is set
Put on cope plate, on the outside of upper external form intracavitary side, upper interior die cavity；Described rising head core is arranged on cope plate, positioned at upper
On the outside of external form intracavitary side, upper interior die cavity.
Described lower mould, it is characterised in that：Including lower template, lower outer die cavity, lower interior die cavity, positioning hole, sand inlet, ventilation
Hole, mounting hole；Described lower template is located at the periphery of lower outer die cavity, is made up of ferrous materials；Under described lower outer die cavity is located at
On the outside of the inside of template；The shape of described lower outer die cavity is identical with the outer loop-shaped of the die joint bottom of arenaceous shell；Under described
The size of outer die cavity is equal to design thickness of the appearance and size plus arenaceous shell of the outer perimeter section of the die joint bottom of arenaceous shell；Described
Die cavity is located at the interior of lower template in lower；The shape of described lower interior die cavity and the interior loop-shaped of the die joint bottom of arenaceous shell
It is identical；The size of described lower interior die cavity is equal to appearance and size the setting plus arenaceous shell of the inner round portion of the die joint bottom of arenaceous shell
Count thickness；The quantity of described lower interior die cavity has four, is uniformly arranged in the inner side of described lower outer die cavity；Described positioning hole
In lower template, after being aligned with the positioning hole on cope plate, its interior chamber size forms arenaceous shell size and adds arenaceous shell thickness；
Described sand inlet is arranged in the lower template on lower outer die cavity top, while is connected with lower external form intracavitary portion and lower inner mold intracavitary portion
It is logical；Described passage is arranged in lower template, and the overflow ducts between lower outer die cavity and lower interior die cavity connect；Described peace
Dress hole is arranged in lower template, is matched with the installing plate of automatic arenaceous shell forming machine.
Described attribute block, it is characterised in that：Including block, mark；Described block is arranged on described lower mould；Institute
The traffic sign placement stated is on the upper surface of described block.
The making of arenaceous shell in described step two refers to bearing block precoated sand mould being placed on arenaceous shell forming machine,
Its internal injection precoated sand pressurized, heated sizing and solidifying, formed bearing block cast processed with certain thickness interior chamber size with
Bearing block appearance and size identical cavity body.
Arenaceous shell automatic moulding machine in described step two is a kind of double precoated sand arenaceous shell automatic moulding machine, its feature
It is：Including right mould frame, frame, hydraulic system, mould bases mobile device, mould bases plate, compressed air system, control system, sandbox,
Sand hopper, left mould frame；Described right mould frame is arranged on mould bases mobile device right-hand member, including mould bases plate, Die and mould plate, guiding support bar；
Described frame includes base, and support, described floor installation is in the bottom of double precoated sand arenaceous shell automatic moulding machine；It is described
Support be arranged on base on；Described hydraulic system includes hydraulic station, control element, hydraulic cylinder；Described mould bases movement dress
Put on base, including mobile work platform；Described mobile work platform can on base transverse shifting；Described mould bases
Plate is arranged on the both ends of left mould frame and right mould frame, is connected respectively with guiding support bar both ends；Described compressed air system includes
Source of the gas, air accumulator, cylinder；Described control system includes controller, sensor, programmer, parameter setting apparatus；Described
Sandbox is arranged in frame；Described sand hopper is arranged on the top of left mould frame and right mould frame；Described left mould frame is arranged on mould bases
The left end of mobile device and right mould frame are symmetrical.
Described step three refers to that cast meets bearing block material into proportioning at the cavity for the precoated sand arenaceous shell made
The molten iron of the fusing of matter component requirements.
Described step four be by pour be poured in molten iron precoated sand arenaceous shell cooling after it is naturally defeated and dispersed, taking-up inner casts, clearly
Cast gate, rising head, and residual impurity are managed, is heat-treated and is machined into next process.
Beneficial effect
The beneficial effects of the present invention are can efficiently realize the production of bearing block blank, save material and artificial, reduction machinery
Processing capacity, casting flaw is reduced, improve yield rate, easily realize automated production.
Brief description of the drawings
Fig. 1 is the structural representation of bottom bracket of the present invention
A. bearing block inner chamber；B. bearing block shell.
Fig. 2 is the structural representation of bearing block precoated sand mould
Mould on 1.；2. lower mould；3. attribute block.
Fig. 3 is the structural representation of the upper mould of precoated sand mould
10. cope plate；Outer die cavity on 11.；Interior die cavity on 12.；13. positioning hole；14. sand inlet；15. passage；16. installation
Hole；17. gate core；18. rising head core.
Fig. 4 is the structural representation of the lower mould of precoated sand mould
20. lower template；21. lower outer die cavity；22. die cavity in lower；23. positioning hole；24. sand inlet；25. passage；26. installation
Hole.
Fig. 5 is the structural representation of the attribute block of precoated sand mould
31. block；32. mark.
Embodiment
In order to further illustrate technical scheme, in conjunction with embodiment of the invention is illustrated, such as
Fig. 1 to Fig. 4, according to the design drawing of bearing block, in this example by taking small-size shaft bearing as an example, the quantity for choosing bearing block is four,
It is uniformly arranged, the appearance and size of bearing block is amplified into 8-12 millimeters, makes bearing block precoated sand mould, bearing block is selected in this example
Horizontal centre plane as cast die joint, using die joint as boundary, by bearing block precoated sand mould using bearing block die joint as
Mould 1 and lower mould 2 are produced respectively in center；On upper mould 1 in this example using the steel plate of 50 millimeters of thickness as cope plate 10,
Outer die cavity 11, upper interior die cavity 12, positioning hole 13, sand inlet 14, passage 15, mounting hole are produced on cope plate 10 respectively
16, gate core 17, rising head core 18, and be engaged with lower mould 2, the same steel plate from 50 millimeters of thickness makes the lower mould of lower mould 2
Plate 20, and produce lower outer die cavity 21 respectively in lower template 20, lower interior die cavity 22, positioning hole 23, sand inlet 24, passage
25, mounting hole 26, the block 31 of attribute block 3 is made from 10 millimeters of steel plate of thickness, and mark 32 is processed on block 31, will
Attribute block 3 is arranged on mould 1, and upper mould 1 and the die cavity open face of lower mould 2 are closed up relatively, and it is fixed to be inserted respectively using alignment pin
Position hole 18 and positioning hole 28, fix its position, form bearing block precoated sand mould；Use in this example and made simultaneously per mold
The arenaceous shell of the upper and lower part of bearing block；The arenaceous shell for the bearing block made is placed on cast place, the fusing that will have been matched
Molten iron is poured into arenaceous shell, after cooling, is opened arenaceous shell, is taken out casting, cast gate and rising head are removed, and clears up miscellaneous on spray
Matter, just complete the production of the blank of bearing block.
It because the production of arenaceous shell and core is automated production, can produce in enormous quantities, overcome clay-bonded sand or resin sand
The complexity of moulding, a large amount of Foundry quartz sands are saved, reduce production cost and labor intensity；Arenaceous shell die life simultaneously
It is long, overcome wooden model or the short-life shortcoming of aluminum dipping form.
Claims (1)
- A kind of 1. blank making method of bearing block, it is characterised in that：Comprise the following steps：First, according to the design drawing of bearing block Paper, bearing block is divided into two parts up and down, separately designs manufacture bearing block precoated sand mould；2nd, by the overlay film sand mo(u)ld of bearing block Tool, which is put on automatic moulding machine, produces precoated sand cast arenaceous shell model；3rd, pour into a mould；4th, take out casting and clear up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474918.3A CN107350426A (en) | 2017-06-21 | 2017-06-21 | A kind of blank preparation method of bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474918.3A CN107350426A (en) | 2017-06-21 | 2017-06-21 | A kind of blank preparation method of bearing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107350426A true CN107350426A (en) | 2017-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474918.3A Pending CN107350426A (en) | 2017-06-21 | 2017-06-21 | A kind of blank preparation method of bearing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047667A (en) * | 2018-08-18 | 2018-12-21 | 南安市春安机械铸造有限公司 | A kind of buhl saw bearing block casting technique |
| CN109175234A (en) * | 2018-11-23 | 2019-01-11 | 禹州市昆仑模具有限公司 | A kind of keeper precoated sand mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203887167U (en) * | 2014-06-13 | 2014-10-22 | 邻水县薪宇机械制造有限公司 | Casting mould for gearbox shell of mini-tiller |
| CN105397024A (en) * | 2015-12-09 | 2016-03-16 | 禹州市昆仑模具有限公司 | Sand shell mold for manufacturing blank of vehicle braking disc |
| CN105458184A (en) * | 2015-12-09 | 2016-04-06 | 禹州市昆仑模具有限公司 | Workblank manufacturing method of automobile brake disc |
| CN105583372A (en) * | 2016-03-21 | 2016-05-18 | 禹州市昆仑模具有限公司 | Sand core lower mould of pipe-clip sand core mould |
| CN105689640A (en) * | 2016-03-21 | 2016-06-22 | 禹州市昆仑模具有限公司 | Sand core upper die of pipe clamp sand core die |
| CN105728648A (en) * | 2016-03-21 | 2016-07-06 | 禹州市昆仑模具有限公司 | Method for manufacturing blank of pipe clamp |
-
2017
- 2017-06-21 CN CN201710474918.3A patent/CN107350426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203887167U (en) * | 2014-06-13 | 2014-10-22 | 邻水县薪宇机械制造有限公司 | Casting mould for gearbox shell of mini-tiller |
| CN105397024A (en) * | 2015-12-09 | 2016-03-16 | 禹州市昆仑模具有限公司 | Sand shell mold for manufacturing blank of vehicle braking disc |
| CN105458184A (en) * | 2015-12-09 | 2016-04-06 | 禹州市昆仑模具有限公司 | Workblank manufacturing method of automobile brake disc |
| CN105583372A (en) * | 2016-03-21 | 2016-05-18 | 禹州市昆仑模具有限公司 | Sand core lower mould of pipe-clip sand core mould |
| CN105689640A (en) * | 2016-03-21 | 2016-06-22 | 禹州市昆仑模具有限公司 | Sand core upper die of pipe clamp sand core die |
| CN105728648A (en) * | 2016-03-21 | 2016-07-06 | 禹州市昆仑模具有限公司 | Method for manufacturing blank of pipe clamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047667A (en) * | 2018-08-18 | 2018-12-21 | 南安市春安机械铸造有限公司 | A kind of buhl saw bearing block casting technique |
| CN109047667B (en) * | 2018-08-18 | 2020-07-28 | 南安市春安机械铸造有限公司 | Casting process of frame saw bearing block |
| CN109175234A (en) * | 2018-11-23 | 2019-01-11 | 禹州市昆仑模具有限公司 | A kind of keeper precoated sand mold |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |