CN206241309U - One kind is bored and attacks center machine tool mechanical main shaft clamping device - Google Patents
One kind is bored and attacks center machine tool mechanical main shaft clamping device Download PDFInfo
- Publication number
- CN206241309U CN206241309U CN201621358316.9U CN201621358316U CN206241309U CN 206241309 U CN206241309 U CN 206241309U CN 201621358316 U CN201621358316 U CN 201621358316U CN 206241309 U CN206241309 U CN 206241309U
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- China
- Prior art keywords
- bearing
- main shaft
- housing
- support cylinder
- clamping device
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Abstract
The utility model is related to a kind of boring to attack center machine tool mechanical main shaft clamping device, including housing, axis rod and bearing (ball) cover；Housing is hollow tubular, and the bottom of axis rod inserts and by upper and lower bearings in housing, and bearing (ball) cover is arranged on the lower end of the housing, and bearing (ball) cover is provided with plug-in opening；Inner support cylinder and outer support cylinder are provided between upper and lower bearing, inner support cylinder is withstood between the inner ring of the upper and lower bearing, and outer support cylinder is withstood between the outer ring of the upper and lower bearing.The upper end of the housing is provided with retaining mechanism, and the lower end of the housing is provided with lower retaining mechanism.The utility model simple structure, it is lightweight, weight saves 30% or so, low cost, easy care meets the rigid requirements of bearing, the installation of housing internal locking nut can be reduced again, the influence of pyrotoxin and slew gear to properties of product is reduced, out-of-balance force and vibration is reduced, is suitable for the processing to product surface quality and processing efficiency requirement electronic product high.
Description
Technical field
The utility model is related to a kind of boring to attack center machine tool mechanical main shaft clamping device, belongs to mechanical manufacturing technology neck
Domain.
Background technology
It is existing for boring the mechanical main shaft rotating speed attacked in center machine tool in 6000-12000r/min, mainly including main shaft
Axis rod, synchronous pulley, upper locking nut, middle part locking nut, shell, bearing, bearing (ball) cover etc., the structure housing and axle center
3 row bottom end bearings, the configuration of 2 row upper end bearings are used between bar；The locking that wherein inner ring of upper end bearing passes through top
Nut, synchronous pulley are compressed, and are connected by bearing shim between the bearing of upper end, and the bottom of upper end bearing is entered by pad, the shaft shoulder
Row is compressed；The inner ring top of bottom end bearing is compressed using middle part locking nut, and middle part locking nut is threaded in axis rod
The inside of outside housing, drives main shaft gyration, main shaft bearing to provide the bearing end of revolving support, shell and bottom using belt pulley
Lid provides main shaft seal.Above-mentioned mechanical main shaft is generally used for the processing of component of machine drilling, tapping, cutting, milling etc., process into
Knife amount is big, and the rigid requirements to mechanical axis are high, along with component of machine is not high to product surface roughness requirements after processing, therefore
The processing of above-mentioned parts is completed by above-mentioned mechanical main shaft slow-speed of revolution high torque.
With the fast development of electronic product, the processing request of electronic component and Cellphone Accessories correlation lightweight product is more next
Higher, such as dynamics is not high although the depth of cut less, is processed for its process of phone housing, and the rigid requirements to main shaft are small, but will
Product surface is highly polished after asking it to process, and polishing effect is good, therefore requires that main shaft rotating speed high is general in 25000r/min, according to
Above-mentioned mechanical main shaft, not only its rotating speed is unsatisfactory for requiring, and its complex structure, and weight is big, and rotary inertia is big, number of bearings
It is many, there is bearing and do not fix, very big out-of-balance force and the risk for jumping can be produced during revolution at a high speed, it is impossible to ensure high turning
Main shaft precision under speed；In addition revolution at a high speed bearing heating amount is big, easily burns and damages when acting for a long time, has a strong impact on the longevity
Life；The design of axis rod inside locking nut increases the rotary inertia and heat condition of main shaft, has a strong impact on main shaft balancing
And vibration；It is that locking nut is acted on by belt pulley that upper end bearing is fixed, when in turning course, due to belt tension change
Active force can be acted on over pulleys carried, and main shaft bearing stress can be caused indirectly, and the precision of bearing revolution and life-span can also be subject to shadow
Ring, therefore the rotary inertia and out-of-balance force of the generation of existing mechanical main shaft are big, cause main shaft bearing to generate heat and less stable,
Cannot be used for processing smaller to the rigid requirement of main shaft, it is desirable to main shaft rotating speed high, light processing, to Product processing surface quality and
The lightweight products such as the exigent electronic component of processing efficiency, Cellphone Accessories.
Existing electro spindle rotating speed is general in 10000-30000r/min or so, and although electro spindle disclosure satisfy that requirements above
Can be used to the products such as the processing request measured electronic component of revolution counter mirror polish matter high, Cellphone Accessories, but electro spindle valency
Lattice are expensive, and cost is more much higher than mechanical main shaft, the processing cost of product is increased significantly, for the planar light high of the demand
The processing of cleanliness is also to waste one's talent on a petty job.
Utility model content
The utility model is in view of the shortcomings of the prior art, there is provided a kind of simple structure, rotating speed is high, and the brill of low cost is attacked
Center machine tool mechanical main shaft clamping device.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：One kind brill is attacked center machine tool mechanical main shaft and is pressed from both sides
Hold mechanism, including housing, axis rod and bearing (ball) cover；The housing is hollow tubular, and the bottom of the axis rod inserts and leads to
Upper and lower bearings are crossed in the housing, the bearing (ball) cover is arranged on the lower end of the housing, is set on the bearing (ball) cover
There is plug-in opening；Inner support cylinder and outer support cylinder are provided between the upper and lower bearing, the inner support cylinder withstands on the upper and lower axle
Between the inner ring for holding, the outer support cylinder is withstood between the outer ring of the upper and lower bearing.
The beneficial effects of the utility model are that upper and lower bearing revolving support is used between housing and axis rod, and upper and lower
It is supported by inside and outside support tube between inner ring, the outer ring of bearing, overall structure is simple, lightweight, it is left that weight saves 30%
The right side, low cost, easy care meets the rigid requirements of bearing, and the installation of housing internal locking nut can be reduced again, reduces hair
The influence of thermal source and slew gear to properties of product, reduces out-of-balance force and vibration, and the rotating speed high of the mechanical main shaft is in 25000r/
Min or so, is suitable for the processing to product surface quality and processing efficiency requirement electronic product high.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the upper end of the housing is provided with retaining mechanism, the upper retaining mechanism include locking nut and on
Pressure-bearing pad, the upper end of the housing is provided with annular shoulder, and the bottom of the annular shoulder is pressed on the outer ring of the upper bearing (metal)
On, the upper pressure-bearing pad is arranged in the space between the axis rod and the annular shoulder, the upper pressure-bearing pad
Gap is provided between outside and the annular shoulder, the bottom of the upper pressure-bearing pad is pressed on the inner ring of the upper bearing (metal),
The bottom of the locking nut is pressed on the top of the upper pressure-bearing pad.
Beneficial effect using above-mentioned further scheme is that upper bearing (metal) inner ring applies pretightning force, outer ring by locking nut
Pretightning force is applied by casing annular shoulder, coordinates inside and outside support of the support tube to the bottom of upper bearing (metal) so that axis rod is fixed
It is reliable and stable, prevent play occur during axis rod revolution at a high speed.
Further, the lower end of the housing is provided with lower retaining mechanism, the lower retaining mechanism include lower pressure-bearing pad and
Compress gasket, the lower end of the axis rod is provided with the shaft shoulder, and the inner ring of the lower bearing is pressed at the top of the lower pressure-bearing pad
On, the bottom of the lower pressure-bearing pad is supported on the shaft shoulder；The top of the compress gasket compresses the outer of the lower bearing
Circle, the bottom of the compress gasket is supported on the bearing (ball) cover.
Beneficial effect using above-mentioned further scheme is that the top of the inside and outside circle of lower bearing passes through inside and outside support tube pressure
Tightly, the bottom of the inside and outside circle of lower bearing then carries out applying pretension by lower pressure-bearing pad and the shaft shoulder, compress gasket and bearing (ball) cover
Power so that axis rod fixing-stable reliability, prevents play occur during axis rod revolution at a high speed.
Further, the inwall of the inner support cylinder is provided with inner groove.
It is to be easy to the assembling of inner support cylinder using the beneficial effect of above-mentioned further scheme, while can radiate, prevents hot change
Shape.
Further, the outer wall of the outer support cylinder is provided with outer groove.
It is to be easy to the assembling of outer support cylinder using the beneficial effect of above-mentioned further scheme, while can radiate, prevents hot change
Shape.
Further, the bottom of the axis rod is provided with ring flange, and the ring flange is connected with the axis rod by bolt
Connect.
Beneficial effect using above-mentioned further scheme is that the bottom that ring flange is fixedly mounted on axis rod does not influence cutter
Installation site, axis rod is protected for dust-proof.
Further, the lower end of the axis rod is provided with the driving key for driving cutter.
Beneficial effect using above-mentioned further scheme is, for installing cutter, to complete the driving of cutter.
Further, the inner support cylinder is engraved structure.
Beneficial effect using above-mentioned further scheme is to mitigate the weight of inner support cylinder, so that the load of main shaft is reduced,
Mechanical main shaft is lighter, reduces the rotary inertia of mechanical main shaft, and mechanical main shaft high-speed rotation is more stable.
Further, the outer support cylinder is engraved structure.
Beneficial effect using above-mentioned further scheme is to mitigate the weight of outer support cylinder, so that the load of main shaft is reduced,
Mechanical main shaft is lighter, reduces the rotary inertia of mechanical main shaft, and mechanical main shaft high-speed rotation is more stable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is profile of the utility model along A-A directions；
Fig. 3 is the partial enlarged drawing at B in Fig. 1；
Fig. 4 is the partial enlarged drawing at C in Fig. 1；
Fig. 5 is the partial enlarged drawing at D in Fig. 1；
Fig. 6 is contour structures schematic diagram of the present utility model；
In figure, 1, housing；2nd, axis rod；3rd, bearing (ball) cover；4th, upper bearing (metal)；5th, lower bearing；6th, inner support cylinder；7th, outer support
Cylinder；8th, locking nut；9th, upper pressure-bearing pad；10th, annular shoulder；11st, lower pressure-bearing pad；12nd, compress gasket；13rd, the shaft shoulder；14、
Inner groove；15th, outer groove；16th, ring flange；17th, key is driven.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with example, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figs 1 to 6, a kind of boring attacks center machine tool mechanical main shaft clamping device, including housing 1, axis rod 2 and
Bearing (ball) cover 3；The housing 1 is hollow tubular, and the bottom of the axis rod 2 is inserted and supported by upper bearing (metal) 4, lower bearing 5
In the housing, the bearing (ball) cover is arranged on the lower end of the housing, and the bearing (ball) cover is provided with plug-in opening；It is described
Be provided with inner support cylinder 6 and outer support cylinder 7 between upper and lower bearing, inner support cylinder withstand on the upper and lower bearing inner ring it
Between, the outer support cylinder is withstood between the outer ring of the upper and lower bearing.
The upper end of the housing is provided with retaining mechanism, and the upper retaining mechanism includes locking nut 8 and upper pressure-bearing pad
9, the upper end of the housing is provided with annular shoulder 10, and the bottom of the annular shoulder is pressed on the outer ring of the upper bearing (metal), institute
State in the space that pressure-bearing pad is arranged between the axis rod and the annular shoulder, the outside of the upper pressure-bearing pad with
Gap is provided between the annular shoulder, the bottom of the upper pressure-bearing pad is pressed on the inner ring of the upper bearing (metal), the lock
The bottom of tight nut is pressed on the top of the upper pressure-bearing pad.Locking nut is locked in upper bearing (metal) by upper pressure-bearing pad
Circle, the outer ring of upper bearing (metal) is then compressed by annular shoulder, and upper bearing (metal) inner ring applies pretightning force, outer ring and leads to by locking nut
Cross casing annular shoulder and apply pretightning force, coordinate inside and outside support of the support tube to the bottom of upper bearing (metal) so that axis rod is fixed stably
It is fixed reliable, prevent play occur during axis rod revolution at a high speed.
The lower end of the housing is provided with lower retaining mechanism, and the lower retaining mechanism includes lower pressure-bearing pad 11 and compress gasket
12, the lower end of the axis rod is provided with the shaft shoulder 13, is pressed on the inner ring of the lower bearing at the top of the lower pressure-bearing pad, institute
The bottom for stating lower pressure-bearing pad is supported on the shaft shoulder；The top of the compress gasket compresses the outer ring of the lower bearing, institute
The bottom for stating compress gasket is supported on the bearing (ball) cover.The top of the inside and outside circle of lower bearing passes through inside and outside support tube and compresses,
The bottom of the inside and outside circle of lower bearing then applies pretightning force by lower pressure-bearing pad and the shaft shoulder, compress gasket and bearing (ball) cover so that
Axis rod fixing-stable reliability, prevents play occur during axis rod revolution at a high speed.
The inwall of the inner support cylinder is provided with inner groove 14.It is easy to the assembling of inner support cylinder, while can radiate, prevents heat
Deformation.
The outer wall of the outer support cylinder is provided with outer groove 15.It is easy to the assembling of outer support cylinder, while can radiate, prevents heat
Deformation.
The bottom of the axis rod is provided with ring flange 16, and the ring flange is bolted with the axis rod.It is described
Gap is provided between ring flange and bearing (ball) cover.The bottom that ring flange is fixedly mounted on axis rod does not influence the installation position of cutter
Put, axis rod is protected for dust-proof, can be rotated with axis rod.
The lower end of the axis rod is provided with the driving key 17 for driving cutter.For installing cutter, the drive of cutter is completed
It is dynamic.
The inner support cylinder is engraved structure.Mitigate the weight of inner support cylinder, so as to reduce the load of main shaft, mechanical main shaft
It is lighter, reduce the rotary inertia of mechanical main shaft, mechanical main shaft high-speed rotation is more stable.
The outer support cylinder is engraved structure.Mitigate the weight of outer support cylinder, so as to reduce the load of main shaft, mechanical main shaft
It is lighter, reduce the rotary inertia of mechanical main shaft, mechanical main shaft high-speed rotation is more stable.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of boring attacks center machine tool mechanical main shaft clamping device, it is characterised in that including housing, axis rod and bearing end
Lid；The housing is hollow tubular, and the bottom of the axis rod inserts and by upper and lower bearings in the housing, institute
Bearing (ball) cover is stated installed in the lower end of the housing, the bearing (ball) cover is provided with plug-in opening；It is provided between the upper and lower bearing
Inner support cylinder and outer support cylinder, the inner support cylinder are withstood between the inner ring of the upper and lower bearing, and the outer support cylinder withstands on institute
State between the outer ring of upper and lower bearing.
2. mechanical main shaft clamping device according to claim 1, it is characterised in that the upper end of the housing is provided with locking
Mechanism, the upper retaining mechanism includes locking nut and upper pressure-bearing pad, and the upper end of the housing is provided with annular shoulder, the ring
The bottom of shape shoulder is pressed on the outer ring of the upper bearing (metal), and the upper pressure-bearing pad is arranged on the axis rod with the annular
In space between shoulder, gap, the upper pressure-bearing pad are provided between the outside of the upper pressure-bearing pad and the annular shoulder
The bottom of piece is pressed on the inner ring of the upper bearing (metal), and the bottom of the locking nut is pressed on the top of the upper pressure-bearing pad
Portion.
3. mechanical main shaft clamping device according to claim 1 and 2, it is characterised in that the lower end of the housing is provided with down
Retaining mechanism, the lower retaining mechanism includes lower pressure-bearing pad and compress gasket, and the lower end of the axis rod is provided with the shaft shoulder, described
It is pressed on the inner ring of the lower bearing at the top of lower pressure-bearing pad, the bottom of the lower pressure-bearing pad is supported on the shaft shoulder
On, the top of the compress gasket compresses the outer ring of the lower bearing, and the bottom of the compress gasket is supported on the bearing end
Cover.
4. mechanical main shaft clamping device according to claim 1, it is characterised in that the inwall of the inner support cylinder is provided with
Inner groove.
5. mechanical main shaft clamping device according to claim 1, it is characterised in that the outer wall of the outer support cylinder is provided with
Outer groove.
6. mechanical main shaft clamping device according to claim 1, it is characterised in that the bottom of the axis rod is provided with flange
Disk, the ring flange is bolted with the axis rod.
7. mechanical main shaft clamping device according to claim 1, it is characterised in that the lower end of the axis rod be provided with for
Drive the driving key of cutter.
8. mechanical main shaft clamping device according to claim 1, it is characterised in that the inner support cylinder is engraved structure.
9. mechanical main shaft clamping device according to claim 1, it is characterised in that the outer support cylinder is engraved structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358316.9U CN206241309U (en) | 2016-12-12 | 2016-12-12 | One kind is bored and attacks center machine tool mechanical main shaft clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358316.9U CN206241309U (en) | 2016-12-12 | 2016-12-12 | One kind is bored and attacks center machine tool mechanical main shaft clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206241309U true CN206241309U (en) | 2017-06-13 |
Family
ID=59006604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621358316.9U Expired - Fee Related CN206241309U (en) | 2016-12-12 | 2016-12-12 | One kind is bored and attacks center machine tool mechanical main shaft clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206241309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392143A (en) * | 2016-12-12 | 2017-02-15 | 鲁东大学 | Clamping mechanism of mechanical main shaft for drilling and tapping center machine tool |
-
2016
- 2016-12-12 CN CN201621358316.9U patent/CN206241309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392143A (en) * | 2016-12-12 | 2017-02-15 | 鲁东大学 | Clamping mechanism of mechanical main shaft for drilling and tapping center machine tool |
| CN106392143B (en) * | 2016-12-12 | 2019-05-17 | 鲁东大学 | A kind of brill attacks center machine tool mechanical main shaft clamping device |
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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: 20170613 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |