CN2048003U - Self-cooled centre with current-collecting function - Google Patents
Self-cooled centre with current-collecting function Download PDFInfo
- Publication number
- CN2048003U CN2048003U CN 89204388 CN89204388U CN2048003U CN 2048003 U CN2048003 U CN 2048003U CN 89204388 CN89204388 CN 89204388 CN 89204388 U CN89204388 U CN 89204388U CN 2048003 U CN2048003 U CN 2048003U
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- China
- Prior art keywords
- carbon brush
- sliding support
- conical sliding
- support cover
- self
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Abstract
The utility model relates to a self-cooled centre with current-collecting function which is used for measuring the cutting temperature of knife on a machine tool, mainly which is composed of a centre, a carbon brush and a conical sliding support sleeve. The utility model is characterized in that the centre and the carbon brush are both arranged in the supporting sleeve and contacted through the tangential form of hemisphere face and plain face; the contact pressure of the carbon brush and the centre is adjustable and can be separated through the junction pole; when the taper shank of the conical sliding support sleeve and the prime shelf of the machine tool main shaft are inserted to be fixedly connected. When temperature is measured, the junction pole, the workpiece, the cutting tool and the centre are formed as a cycle and can be measured through the instrumentation. The utility model has the advantages of reliable working, simple installation and debugging, good versatility, etc. The utility model has the advantages of high reliability, simple installation and good versatility.
Description
It is top that the utility model relates to a kind of self-cooled afflux that is used on the lathe measuring the Tool in Cutting temperature.
Cutting temperature is a very important index in the metal cutting work, and it not only directly influences the wearing and tearing and the durability of cutter, and influences the machining accuracy and the surface quality of workpiece.At present, generally adopt natural thermocouple method to measure cutting temperature, what Fig. 4 was given is exactly this schematic representation of apparatus.It mainly is by workpiece, cutter, insulating materials, milivoltmeter (or potential difference meter) lead-in wire and copper is top, the copper pin, and the support of fixing it.When this device used, workpiece and cutter all needed and machine insulation, the normal employing and the metallic rod of workpiece between workpiece and the collecting ring with material, and metal wire, the spacious line of screen, or the cutting of this workpiece connects as lead-in wire.This current-collecting device basic pattern has mercury formula, top formula, copper top (or silver-plated top), carbon brush formula, spring sliding ring type, remote sensing formula etc.Adopting the measured temperature value of this device is according to the electromotive force millivolt value that measures in the working angles, can find relative cutting temperature value on the millivolt value calibration curve together in the temperature of obtaining in advance.
Above-mentioned this structure has following shortcoming: 1. work-handling bothers, and is difficult to automation.Because generally will hole at workpiece end face earlier, tapping so that lead-in wire is installed, this has just not only increased a large amount of unproductive times, and needs manual operations, can't use in the production scene; 2. Gong Zuo lead-in wire work is unreliable, and Yi Song, easily broken especially in that will break when disconnected can serious interfering signal, makes the natural thermocouple job insecurity, produces a large amount of noise signals and often is difficult for discovery; 3. if current-collecting device adopts the mercury formula, then because of mercury is poisonous, the loss of easily running off goes between and other part but also can float erosion, influences operate as normal.If its form of employing, then because structure is responsive to setting-up eccentricity, and frictional force is big, it is relatively poor to dispel the heat or the like, easily produces the parasitic heat electromotive force.
Owing to have above-mentioned shortcoming in the existing device, task of the present utility model is to provide a kind of reliable operation, install easy to adjust, versatility is good, heat in metal cutting electromotive force, monitoring vibration and tool wear had both been can be used for measuring, simultaneously can be used for applying artificial electric current again, suppress tool wear, a kind of novel self-cooling formula that prolongs cutter life is top.
Above-mentioned task of the present utility model is executed by following mistake and finished: promptly this device mainly is by top, carbon brush and conical sliding support cover are formed, it is characterized in that top (9) and carbon brush (13) place in the conical sliding support cover (11), top (9) are fixed in the conical sliding support cover (11) by friction top (10) with heart ball bearing (21) mutually by thrust ball bearing (20), the taper shank of conical sliding support cover (11) inserts with tail stock for machine tool sleeve taper hole and connects, fan (12) is equipped with in the rear end of top (9), the end is a hemisphere face, carbon brush (13) and top (9) coaxial assembling, its end face adopt can be tangent with the hemisphere face of top end the plane, carbon brush is adjusted axle (16) and can be slided in the hole of conical sliding support cover (11) afterbody, spring (17) is housed on it and adjusts nut (18).
This device also has two other feature except that above-mentioned principal character:
It 1 is to have L shaped groove (11-1) on the taper shank body of above said conical sliding support cover (11), is equipped with in it along top axially movable junction pole (15).
It 2 is to adjust on the axle (16) at the bearing fixing place of top (9) and carbon brush insulating materials is housed respectively.
Below in conjunction with accompanying drawing in detail design of the present utility model is described in detail:
This device is mounted in the machine tool chief axis afterbody, constitutes path by top, workpiece, cutter and connecting conducting wire, measures the cutting temperature of cutter with milivoltmeter or potential difference meter.Adopt this device mainly to solve in existing device in workpiece one end dress a series of worn-out sick this key issue that thermocouple brought.This device mainly is made up of top (9), conical sliding support cover (11) and carbon brush (13).Top (9) and the coaxial assembling of carbon brush (13) also place in the conical sliding support cover (11), top is to be fixed in the conical sliding support cover (11) by bearing (20), (21) and friction top, bearing and top between insulating materials (22) is housed so that make the insulation of top (9) and conical sliding support cover (11).Left end in top (9) is equipped with self-cooling fan (12), hemisphere face is adopted in the end of top (9), carbon brush (13) is that the carbon brush by its left end is adjusted in the hole of taper shank end that axle (16) is installed in the conical sliding support cover, it can endwisely slip, between carbon brush adjustment axle (16) and conical sliding support cover (11) insulating materials is housed, purpose is to make carbon brush (13) and conical sliding support cover (11) insulation.The left end of carbon brush (13) adopts the plane, can make the tangent drainage of hemisphere face and carbon brush plane of top (9) like this.Adopt this structure, theoretically, the friction linear velocity at this place almost levels off to zero, and insensitive to setting-up eccentricity.So the wearing and tearing of contact-making surface are very little, working stability, service life big leap ahead.Because fan (12) is equipped with near the top end of this contact-making surface, help eliminating the parasitic heat electromotive force, and rotating speed is high more simultaneously, self cooling effect is good more.The contacting pressure and can adjust carbon brush and adjust spring (17) on the axle (16) of carbon brush (13) and top (9) by adjusting nut (18), thus excellent contact obtained.
In order to solve under the situation of thermometric not, avoid top the contact to bring unnecessary wearing and tearing with carbon brush, on conical sliding support cover taper shank body, have L shaped groove (11-1), be equipped with in it and can carbon brush (13) be dialled to right-hand member along top axially movable junction pole (15), it is separated with top, and this moment can be as general top use.When the needs thermometric or when applying artificial electric current junction pole (15) is taken out from L shaped groove (11-1), carbon brush (13) contacts with the semicircle sphere of top (9) under spring (17) effect.
Because top drainage is partly insulated with band taper shank splicing sleeve, just insulate with tailstock.If so cutter insulate with knife rest when using, workpiece then can be on-insulated, temperature-measuring results is not influenced by it can.
When cutter, workpiece were all on-insulated, the equivalent circuit of temp measuring system as shown in Figure 3.After tested, headstock spindle is to the resistance R of knife rest
S, quite big usually, and workpiece, Tool in Cutting contact zone resistance R
TGenerally very little.According to the electrotechnics principle, when stable state is cut, milivoltmeter reading U
SCFor:
E in the formula
TBe actual cut thermoelectrical potential value, because R
SVery big R
TVery little, so R
T/ R
S→ 0, U
SC≈ E
TAt this moment promptly (the workpiece cutter is all on-insulated) milivoltmeter measured value is similar to actual cut thermoelectrical potential value, and slightly smaller, at short time measurement, require not really tight, or as long as can be for reference when changing more relatively.
When kinetic measurement, all on-insulated not influence of frequency characteristic, especially frequency content of workpiece, cutter to the cutting electromotive force, tested checking is real.
Such scheme provided by the utility model and existing device relatively have the following advantages:
1. signal noise is little, and brush contact place linear velocity is zero in theory, and in fact automatically air-cooled owing to having, Parasitic EMF during Measuring can drop to very little.
2. the reliability height has been eliminated original various device, existence to the setting-up eccentricity sensitivity, lead-in wire frangibility, or the easy leakage loss loss of mercury etc. affects the problem of work.
3. practical, workpiece does not need to hole in advance, and tapping and installation lead-in wire are convenient to automatic loading and unloading workpiece and production scene and are used, and have overcome the deficiency of original device this respect.
4. versatility is good, both can be used for thermometric or applied artificial electric current suppressing tool wear, can be used for again conventional cutting as general top use.
5. simple in structure, use easy to operately, can save the time of a large amount of preparations, installation, adjustment and maintenance.
6. other lathe such as also can be used for rolling, mill.
7. easy to manufacture, low price.
Description of drawings:
The top temperature measuring equipment schematic diagram of Fig. 1 self-cooled afflux.
Fig. 2 self-cooled afflux top tip structure figure.
When Fig. 3 cutter, workpiece are all on-insulated, the equivalent circuit diagram of the top temp measuring system of self-cooled afflux.
Fig. 4 has natural thermocouple method temperature measuring equipment schematic diagram now.
Workpiece among the figure (1), cutter (2), insulating materials (3), milivoltmeter (4), lead-in wire (5), copper top (6), copper pin (7), machine tool chief axis afterbody (8), top (9), friction top (10), conical sliding support cover (11), fan (12), carbon brush (13), trip bolt (14), junction pole (15), carbon brush is adjusted axle (16), spring (17), adjust nut (18), clamp nut (19), thrust ball bearing (20), radial ball bearing (21), insulating materials (22).
Such scheme provided by the utility model can be implemented by the given wherein example of Fig. 2.
Claims (3)
1, a kind of self-cooled afflux that is used on the lathe measuring the Tool in Cutting temperature is top, it mainly is by top, carbon brush and conical sliding support cover are formed, it is characterized in that top (9) and carbon brush (13) place in the conical sliding support cover (11), top (9) are fixed in the conical sliding support cover (11) by friction top (10) by thrust ball bearing (20) and radial ball bearing (21), the taper shank of conical sliding support cover (11) inserts with tail stock for machine tool sleeve taper hole and connects, fan (12) is equipped with in the rear end of top (9), the end is a hemisphere face, carbon brush (13) and top (9) coaxial assembling, its end face adopt can be tangent with the hemisphere face of top end the plane, carbon brush is adjusted axle (16) and can be slided in the hole of conical sliding support cover (11) afterbody, spring (17) is housed on it and adjusts nut (18).
2, a kind of self-cooled afflux that is used on the lathe measuring the Tool in Cutting temperature according to claim 1 is top, it is characterized in that having L shaped groove (11-1) on the taper shank body of said conical sliding support cover (11), being equipped with in it can be along top axially movable junction pole (15).
3, a kind of self-cooled afflux that is used on the lathe measuring the Tool in Cutting temperature according to claim 1 and 2 is top, it is characterized in that adjusting on the axle (16) at the bearing fixing place of top (9) and carbon brush insulating materials is housed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89204388 CN2048003U (en) | 1989-04-10 | 1989-04-10 | Self-cooled centre with current-collecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89204388 CN2048003U (en) | 1989-04-10 | 1989-04-10 | Self-cooled centre with current-collecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2048003U true CN2048003U (en) | 1989-11-22 |
Family
ID=4861752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89204388 Withdrawn CN2048003U (en) | 1989-04-10 | 1989-04-10 | Self-cooled centre with current-collecting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2048003U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228997A (en) * | 2011-06-29 | 2011-11-02 | 重庆银钢汽车配件制造有限责任公司 | Elastic core clamper |
| CN109332734A (en) * | 2018-11-20 | 2019-02-15 | 宁夏贺兰县机床附件厂 | A kind of end face hydraulic automatic driver plate with the utilization rate for improving material |
| CN109664089A (en) * | 2018-12-29 | 2019-04-23 | 温州奔龙信息科技有限公司 | A kind of conveniently welding ball valve assembly machine |
| CN110076360A (en) * | 2019-05-31 | 2019-08-02 | 重庆宏钢数控机床有限公司 | A kind of Quick Release ready-package is top |
-
1989
- 1989-04-10 CN CN 89204388 patent/CN2048003U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228997A (en) * | 2011-06-29 | 2011-11-02 | 重庆银钢汽车配件制造有限责任公司 | Elastic core clamper |
| CN102228997B (en) * | 2011-06-29 | 2013-01-02 | 重庆银钢一通凸轮科技有限公司 | Elastic core clamper |
| CN109332734A (en) * | 2018-11-20 | 2019-02-15 | 宁夏贺兰县机床附件厂 | A kind of end face hydraulic automatic driver plate with the utilization rate for improving material |
| CN109664089A (en) * | 2018-12-29 | 2019-04-23 | 温州奔龙信息科技有限公司 | A kind of conveniently welding ball valve assembly machine |
| CN110076360A (en) * | 2019-05-31 | 2019-08-02 | 重庆宏钢数控机床有限公司 | A kind of Quick Release ready-package is top |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |