CN106346377B - Green dry abrasive cutting phase-change thermal storage grinding wheel and its manufacturing method - Google Patents
Green dry abrasive cutting phase-change thermal storage grinding wheel and its manufacturing method Download PDFInfo
- Publication number
- CN106346377B CN106346377B CN201610865211.0A CN201610865211A CN106346377B CN 106346377 B CN106346377 B CN 106346377B CN 201610865211 A CN201610865211 A CN 201610865211A CN 106346377 B CN106346377 B CN 106346377B
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- China
- Prior art keywords
- grinding wheel
- base body
- pumping
- heat accumulation
- pedestal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0054—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
Abstract
The present invention provides a kind of green dry abrasive cutting phase-change thermal storage grinding wheel, abrasive material including grinding wheel base body and set on the grinding wheel base body outer end, perimetrical lumen is equipped in the grinding wheel base body at outer end, one circle heat accumulation element of setting in the matrix of the perimetrical lumen inner end, the working medium under room temperature for liquid is provided in the perimetrical lumen, have in the grinding wheel base body and be connected to the perimetrical lumen and extraneous pumping liquid injection hole, setting blocks the plugging device of the pumping liquid injection hole on the grinding wheel base body.Perimetrical lumen is evacuated, inject working medium and tail is honored as a queen to form annular heat pipe, the phase-change heat transfer effect of the annular heat pipe can guarantee that grinding heat when processing is transferred to inside grinding wheel rapidly, heat accumulation element then can further by these heat absorptions and be stored to itself, the external world is transferred to by grinding wheel base body again, and then realize the effect for reducing grinding temperature, occasion is processed especially suitable for dry abrasive cutting.
Description
Technical field
The present invention relates to a kind of grinding wheels, belong to abrasive tool industry, specifically, relate to a kind of green dry abrasive cutting and are stored up with phase transformation
Hot grinding wheel further relates to a kind of method for manufacturing the grinding wheel.
Background technique
Grinding is due to that can convert thermal energy for most mechanical energy in removal materials process, if these heats are not
It can be dredged away in time from grinding arc area, resulting grinding high temperature easily causes workpiece surface thermal damage, wheel life contracting
The ill effect that short and Workpiece Machining Accuracy reduces.Cooling in time to achieve the purpose that, conventional solution is added in grinding
Coolant liquid is used in work.But in fact, since grinding arc area is comparatively closed, in order to effectively be sent to coolant liquid
Grinding arc area enhanced heat exchange, dosage and effluxvelocity become increasing, and can largely be caused using coolant liquid a series of
Negative issue, as liquid waste processing is improper will seriously pollute environment, largely using coolant liquid will increase production cost, energy consumption with
And coolant liquid use process can damage the health of operator, this is runed counter to current green manufacturing theory.
Therefore, while reduction (or being not necessarily to) coolant liquid usage amount, how to realize and grinding temperature is effectively reduced, this is
As the importance that must be taken into account in the future development of Grinding Technology field.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of design science, structure novel, can be effective
Reduce the green dry abrasive cutting phase-change thermal storage grinding wheel of grinding temperature.
To achieve the goals above, the technical scheme adopted by the invention is that: a kind of green dry abrasive cutting phase-change thermal storage sand
It takes turns, the abrasive material including grinding wheel base body and set on the grinding wheel base body outer end, is equipped with annular in the grinding wheel base body at outer end
Lumen, one circle heat accumulation element of setting in the matrix of the perimetrical lumen inner end are provided under room temperature as liquid in the perimetrical lumen
The working medium of state has in the grinding wheel base body and is connected to the perimetrical lumen and extraneous pumping liquid injection hole, on the grinding wheel base body
The plugging device for blocking the pumping liquid injection hole is set.
Described on base, the grinding wheel base body includes pedestal and cover board, and annular recess, the heat accumulation member are arranged on the pedestal
Part is mounted on the inside of the annular recess, and the cover board and the tube chamber welds with base fix and form the perimetrical lumen.It is described
The outer end face of heat accumulation element is in plane or wavy or cambered surface.
It is described on base, open up a handle hole along axial direction on the pedestal, the pumping liquid injection hole from the perimetrical lumen according to
Secondary to pass through in the heat accumulation element and the pedestal to the handle hole, the plugging device is seal plug, the seal plug
Head is mounted in the handle hole, the deep equality of the length of the seal plug and the handle hole.
Described on base, it further includes pumping fluid injection connector, and the handle hole is through-hole, the pumping fluid injection connector
Diameter is consistent with the seal plug, and described be evacuated in fluid injection connector is arranged for being connected to the pumping liquid injection hole and the external world
L-type perforation.
Described on base, the heat accumulation element is the red copper or copper alloy of annular structure, and the heat accumulation element passes through close-fitting
Conjunction mode is mounted in the annular groove of the pedestal.
It is described on base, it is evacuated fluid injection connector and the seal plug is all made of the radial direction with 3 groups of sealing rings and groove
Movable sealing structure.
Described on base, the handle hole size is φ 8-20mm, and surface roughness is less than Ra0.8 μm, and the annular is recessed
Groove width is 35-70mm, and the size of the pumping liquid injection hole is φ 1-2mm.
Described on base, the annular section width of the heat accumulation element is 15-40mm；The outer end face of the heat accumulation element is flat
Face or wavy or cambered surface and the outer end face pass through bead.
The method for manufacturing above-mentioned green dry abrasive cutting phase-change thermal storage grinding wheel, comprising the following steps:
Step 1) makes pedestal, cover board, heat accumulation element, pumping fluid injection connector and seal plug according to design size；
Heat accumulation element is assembled in the annular groove of pedestal, and guarantees the pumping liquid injection hole on heat accumulation element by step 2
Section is aligned with the pumping fluid injection hole section on pedestal；Cover board assembly is welded and fixed on pedestal later；
Step 3) carries out vacuum leak hunting to weld seam, if discovery stomata carries out repair welding；
Step 4) finishes grinding wheel base body, its outer circle and end face are machined to size requirement；Later again to weld seam
Secondary vacuum leak detection is carried out, if discovery stomata carries out secondary repair welding, then using the extra weldering of method for grinding removal wheel face
Material；
Step 5) is electroplated using diamond or cubic boron nitride abrasive materials；
Step 6) is bonded by coaxial requirement with seal plug and is installed sealing ring for fluid injection connector is evacuated, then close
Seal and operation hole surface apply a small amount of vacuseal grease；Then pumping fluid injection connector is mounted in the handle hole of pedestal, together
When guarantee pumping fluid injection connector on L-type perforation it is corresponding with the pumping fluid injection hole section on pedestal；
Step 7) is perforated and is evacuated liquid injection hole by L-type and working medium is vacuumized and injected to perimetrical lumen, then slowly
Seal plug is elapsed to the position of substitution pumping fluid injection connector, shape that perimetrical lumen is evacuated, injection working medium and tail are honored as a queen
Circularize heat pipe；Finally seal plug and vacuum pumping liquid injection connector are detached from, complete grinding wheel manufacture.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, specifically, present invention tool
It has the advantage that
1, relatively existing to carry out cooling technology using coolant liquid, this grinding wheel heat transfer property high using annular heat pipe,
In the heat accumulation element for being transferred to intrinsic silicon that the heat of grinding arc area is quick, lasting, passing through grinding wheel base body itself later will
Above-mentioned heat is dredged into ambient enviroment, and the purpose for reducing grinding temperature is achieved in, and is avoided and is used a large amount of coolant liquid institutes band
The a series of problems come.The green dry abrasive cutting that this grinding wheel is suitable for various types of materials is processed.
2, perimetrical lumen assembled by groove and cover board, weld after formed, for heat accumulation element in the groove, structure is simply easy
Molding.
3, setting pumping fluid injection connector, whole specification is consistent with plug, is connected to after L-type perforation and pumping liquid injection hole docking
The external world is evacuated, fluid injection and closure by the replacement of plug and pumping fluid injection connector, and structure is easy to use, so that grinding wheel
Internal annular heat pipe preparation process is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Green dry abrasive cutting phase-change thermal storage grinding wheel of the present invention.
Fig. 2 is the phase-change thermal storage schematic diagram of annular heat pipe in the present invention.
Fig. 3 is the use state diagram that fluid injection connector is evacuated in the present invention.
Fig. 4-1,4-2,4-3 are the structural schematic diagrams in the present invention in heat accumulation element difference embodiment.
In figure: 1. pedestals；2. cover board；3. perimetrical lumen；4. heat accumulation element；5. working medium；6. seal plug；7. abrasive material；8.
It is evacuated fluid injection connector；The perforation of 9.L type；10. sealing ring；11. being evacuated liquid injection hole.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
As shown in Figure 1, a kind of green dry abrasive cutting phase-change thermal storage grinding wheel, including grinding wheel base body and it is set to the grinding wheel base body
The abrasive material 7 of outer end, the abrasive material 7 is diamond or cubic boron nitride, and is fixedly arranged at outside above-mentioned grinding wheel base body by electro-plating method
Disc and endface position.
The grinding wheel base body includes pedestal 1 and cover board 2, and the annular recess that setting width is 60mm on the pedestal 1 is described
Purple can be used by the annular heat accumulation element 4 of tight fit mode (as being interference fitted) installation, heat accumulation element 4 in the inside of annular recess
The material of the good heat-transfers such as copper or copper alloy makes, and the outer end face of heat accumulation element 4 passes through bead, the heat accumulation element 4
Annular section width be 30mm.
The cover board 2 is welded and fixed and is formed perimetrical lumen 3 with the pedestal 1, is provided with room temperature in the perimetrical lumen 3
It is down the working medium 5 of liquid.
As shown in Fig. 4-1,4-2 and 4-3, in various embodiments, the outer end face of the heat accumulation element 4 can be flat
Face or wavy or cambered surface, are designed as cambered surface or wavy purpose is to increase heat exchange area.
The handle hole that a size is φ 15mm is opened up along axial direction on the pedestal 1, surface roughness is less than Ra0.8 μm, institute
It states and opens up the pumping liquid injection hole 11 for being connected to handle hole and perimetrical lumen 3 on heat accumulation element 4 and the pedestal 1, be evacuated liquid injection hole 11
Size be φ 1.5mm, seal plug 6 is installed in the handle hole.
As shown in figure 3, for convenience of pumping and fluid injection, setting pumping fluid injection connector 8 sets logical for the handle hole
Hole, the diameter and the seal plug 6 of the pumping fluid injection connector 8 are consistent, and setting is used in the pumping fluid injection connector 8
It is connected to the pumping liquid injection hole 11 and extraneous L-type perforation 9.The pumping fluid injection connector and the seal plug 6 are all made of
Radial moving sealing structure with 3 groups of sealing rings 10 and groove.
It when specifically used, will be evacuated in 8 insertion operation hole of fluid injection connector, and L-type is perforated and docks pumping liquid injection hole 11,
The external world is connected to perimetrical lumen 3, is vacuumized by external equipment, is then injected into working medium 5, finally sealed with seal plug 6, shape
At the annular heat pipe.
According to the applying working condition of grinding wheel, the annular heat pipe is prepared according to moderate temperature heat pipe, therefore is selected under room temperature and be
The working medium 5 of liquid, such as water, alcohol, acetone, working medium 5 is on 3 wall surface of perimetrical lumen when 5 injection rate of working medium is grinding wheel rotation
Uniform liquid film is formed with a thickness of volume corresponding to 1-3mm.
As shown in Fig. 2, a large amount of grinding heat is generated when stone, and the effect of the phase-change heat transfer of annular heat pipe can be protected
Heat is rapidly transferred to the heat accumulation element 4 inside grinding wheel by card, and heat accumulation element 4, which then further absorbs this partial heat, to be stored up
There are itself, and then the feature larger by grinding wheel base body itself heat exchange area, is gradually transferred to external environment for heat, realizes
The rapid cooling in wheel grinding arc area.
The heat storage capacity of the heat accumulation element is assessed as follows.Since above-mentioned annular heat pipe and heat accumulation element are with excellent
Good thermal conductivity, it is assumed that the temperature of (storage heating element portion) is approximate consistent inside grinding wheel, at this time the heat storage capacity of grinding wheel can by with
Lower formula is estimated:
Q=cmΔT
Wherein: Q --- the heat of storage, J；
C --- specific heat capacity, J/ (kg DEG C)；
M --- quality, kg；
Δ T --- the average temperature rising after grinding wheel heat absorption inside heat accumulation element, DEG C.
This grinding wheel grinding when without using coolant liquid, while can using grinding wheel therein annular heat pipe and storage
Thermal element 4 promptly by inside the heat storage to grinding wheel of grinding arc area, is constantly dredged heat to surrounding through grinding wheel after
Environment, to realize the effect for reducing grinding temperature, the green dry abrasive cutting especially suitable for various types of materials is processed.
The method for manufacturing above-mentioned green dry abrasive cutting phase-change thermal storage grinding wheel, comprising the following steps:
Step 1) makes pedestal 1, cover board 2, heat accumulation element 4, pumping fluid injection connector 8 and seal plug according to design size
First 6, select the sealing ring 10 of suitable dimension and type；
Heat accumulation element 4 is assembled in the annular groove of pedestal 1, and guarantees the pumping fluid injection on heat accumulation element 4 by step 2
Hole section is aligned with the pumping fluid injection hole section on pedestal 1；The assembly of cover board 2 is welded and fixed on pedestal 1 later；
Perimetrical lumen 3 described in step 3) needs to carry out vacuum leak hunting after being formed, when the leak rate of perimetrical lumen 3 is lower than 0.5Pa/
When hour, the leakproofness of the perimetrical lumen 3 is met the requirements.Otherwise, by carrying out leak detection and repair method to weld seam, to improve its close
Feng Xing.
Step 4) finishes grinding wheel base body, its outer circle and end face are machined to size requirement；Later again to weld seam
Secondary vacuum leak detection is carried out, if discovery stomata carries out secondary repair welding, then using the extra weldering of method for grinding removal wheel face
Material；
Step 5) is electroplated using diamond or cubic boron nitride abrasive materials；
Step 6) is bonded by coaxial requirement with seal plug 6 and is installed sealing ring 10 for fluid injection connector 8 is evacuated, then
A small amount of vacuseal grease is applied in sealing ring 10 and operation hole surface；Pumping fluid injection connector 8 is then mounted on 1 handle hole of pedestal
In, while guaranteeing that the L-type being evacuated on fluid injection connector 8 perforation is corresponding with 11 sections of pumping liquid injection hole on pedestal 1；
Step 7) is perforated and is evacuated liquid injection hole 11 by L-type and working medium 5 is vacuumized and injected to perimetrical lumen 3, then
Slowly by the passage of seal plug 6 to the position of substitution pumping fluid injection connector 8；Finally seal plug 6 and vacuum pumping liquid injection are connected
Fitting is detached from, and completes grinding wheel manufacture.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of green dry abrasive cutting phase-change thermal storage grinding wheel, the abrasive material including grinding wheel base body and set on the grinding wheel base body outer end,
It is characterized by: being equipped with perimetrical lumen in the grinding wheel base body at outer end, it is arranged in the matrix of the perimetrical lumen inner end
One encloses heat accumulation element, and the working medium under room temperature for liquid is provided in the perimetrical lumen, has connection institute in the grinding wheel base body
Perimetrical lumen and extraneous pumping liquid injection hole are stated, setting blocks the plugging device of the pumping liquid injection hole on the grinding wheel base body.
2. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 1, it is characterised in that: the grinding wheel base body includes
Annular recess is arranged on the pedestal in pedestal and cover board, and the heat accumulation element is mounted on the inside of the annular recess, the lid
Plate and the tube chamber welds with base fix and form the perimetrical lumen.
3. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 2, it is characterised in that: outside the heat accumulation element
End face is in plane or wavy or cambered surface.
4. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 3, it is characterised in that: the heat accumulation element is circle
The red copper or copper alloy of cyclic structure, the heat accumulation element are mounted in the annular groove of the pedestal by tight fit mode.
5. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 4, it is characterised in that: along axial direction on the pedestal
Open up a handle hole, the pumping liquid injection hole sequentially passes through the heat accumulation element and the pedestal to described from the perimetrical lumen
In handle hole, the plugging device is seal plug, and the seal plug is mounted in the handle hole, the seal plug
The deep equality of length and the handle hole.
6. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 5, it is characterised in that: it further includes pumping fluid injection
Connector, the handle hole are through-hole, and the diameter of the pumping fluid injection connector is consistent with the seal plug, the pumping note
Setting is for being connected to the pumping liquid injection hole and extraneous L-type perforation in liquid connector.
7. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 6, it is characterised in that: the pumping fluid injection connection
Part and the seal plug are all made of the radial moving sealing structure with multiple groups sealing ring and groove.
8. according to the described in any item green dry abrasive cutting phase-change thermal storage grinding wheels of claim 5-7, it is characterised in that: the operation
Hole size is φ 8-20mm, and surface roughness is less than Ra0.8 μm, and the annular groove width is 35-70mm, the pumping note
The size of fluid apertures is φ 1-2mm.
9. green dry abrasive cutting phase-change thermal storage grinding wheel according to claim 8, it is characterised in that: the ring of the heat accumulation element
Shape partial width is 15-40mm；The outer end face of the heat accumulation element is plane or wavy or cambered surface and the outer end face passes through
Cross bead.
10. the method for the described in any item green dry abrasive cutting phase-change thermal storage grinding wheels of manufacturing claims 1-9, it is characterised in that:
The following steps are included:
Step 1) makes pedestal, cover board, heat accumulation element, pumping fluid injection connector and seal plug according to design size；
Step 2, by heat accumulation element assembly in the annular groove of pedestal, and guarantee the pumping fluid injection hole section on heat accumulation element with
Pumping fluid injection hole section alignment on pedestal；Cover board assembly is welded and fixed on pedestal later；
Step 3) carries out vacuum leak hunting to weld seam, if discovery stomata carries out repair welding；
Step 4) finishes grinding wheel base body, carries out secondary vacuum leak detection to weld seam again later, if discovery stomata carries out two
Secondary repair welding；
Step 5) is electroplated using diamond or cubic boron nitride abrasive materials；
Pumping fluid injection connector is bonded with seal plug by coaxial requirement and installs sealing ring by step 6)；Pumping is infused
Liquid connector is mounted in the handle hole of pedestal, while guaranteeing the L-type being evacuated on fluid injection connector perforation and the pumping on pedestal
Fluid injection hole section is corresponding；
Step 7), being perforated by L-type and being evacuated liquid injection hole is vacuumized to perimetrical lumen and is injected working medium, then by seal plug
Head passage is evacuated the position of fluid injection connector to substitution, then seal plug and vacuum pumping liquid injection connector are detached from, and completes grinding wheel
Manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865211.0A CN106346377B (en) | 2016-09-30 | 2016-09-30 | Green dry abrasive cutting phase-change thermal storage grinding wheel and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865211.0A CN106346377B (en) | 2016-09-30 | 2016-09-30 | Green dry abrasive cutting phase-change thermal storage grinding wheel and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106346377A CN106346377A (en) | 2017-01-25 |
| CN106346377B true CN106346377B (en) | 2019-01-18 |
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ID=57867170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610865211.0A Active CN106346377B (en) | 2016-09-30 | 2016-09-30 | Green dry abrasive cutting phase-change thermal storage grinding wheel and its manufacturing method |
Country Status (1)
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| CN (1) | CN106346377B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571292B (en) * | 2018-12-29 | 2020-11-17 | 河南工业大学 | Novel high-thermal-conductivity phase-change heat-storage superhard abrasive grinding wheel and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0760648A (en) * | 1993-08-24 | 1995-03-07 | Matsushita Electric Ind Co Ltd | Precision grinding cutting grinding wheel |
| CN100522491C (en) * | 2007-11-15 | 2009-08-05 | 南京航空航天大学 | Braze welding diamond heattube abrasive wheel |
| CN202540148U (en) * | 2012-05-05 | 2012-11-21 | 山东大学 | Heat pipe sucker for accelerating heat transfer of abrasive machining on thin-walled workpiece |
| CN103128676B (en) * | 2013-02-26 | 2015-07-01 | 南京航空航天大学 | Heat pipe grinding wheel for dry cutting for difficult-to-machined materials and method for manufacturing heat pipe grinding wheel |
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- 2016-09-30 CN CN201610865211.0A patent/CN106346377B/en active Active
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| CN106346377A (en) | 2017-01-25 |
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