CN208929250U - A kind of improved main-shaft core drill mechanism - Google Patents
A kind of improved main-shaft core drill mechanism Download PDFInfo
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- CN208929250U CN208929250U CN201821538730.7U CN201821538730U CN208929250U CN 208929250 U CN208929250 U CN 208929250U CN 201821538730 U CN201821538730 U CN 201821538730U CN 208929250 U CN208929250 U CN 208929250U
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- oil cylinder
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Abstract
The utility model provides a kind of improved main-shaft core drill mechanism, including headstock, spindle drum, main shaft, hollow pull rod, collet, telescopic oil cylinder, angling cylinder, center bit, the main shaft is installed on the headstock, blocking can rotate in headstock in spindle drum, the hollow pull rod is located in the main shaft and can rotate in main shaft, described hollow pull rod one end is connect with the angling cylinder, the other end is connect with the collet, centre drill mandrel is equipped in the hollow pull rod, centre drill mandrel one end is connect with the telescopic oil cylinder, the other end is connect with the center bit.Using by original main shaft body, pull rod planning and designing structure is simple, main shaft inner axis of heart and center bit is driven to move axially by the expanding-contracting action of hydraulic cylinder, so as to which part need to be done both ends or the simplification of back center drilling processing technique compared with machining long workpieces, and guarantee in the more stable accurate effect of main shaft inside center drilling processing.
Description
Technical field
The utility model relates to a kind of improved main-shaft core drill mechanisms.
Background technique
As market competition becomes increasingly fierce, client is increasingly strict to product requirement, in face of the technology work for the dealer that goes together
How energy competitiveness, improve high-effect high-quality of the numerically controlled lathe in terms of processing technology, promote higher processing efficiency, essence
Degree, simple structure, the core competitiveness that easy to operate chemical conversion is digit ctrol machine tool field.Main shaft inside center drilling equipment is based on original
First main shaft oil cylinder pressure chuck connection, it is only necessary to telescopic oil cylinder be connected by main shaft base rear end supporting mechanism and configure idler axle and center
Drill bit realizes centre-drilling hole function.Mechanical structure is simple and compact, and additional configuration feature can be configured by primary standard, occupies inner space
It is small, while guaranteeing high-precision requirement, it is substantially shorter process time, to improve workpieces processing quality qualification rate, simultaneously
Configure high-accuracy grade needle bearing support centre drill mandrel, can high-efficiency and precision use this mechanism.This device needs to meet following
Several points: 1. meet the requirement of company standard lathe high end configuration and normal use, i.e., fit on the basis of improving performance as far as possible
When the certain improvement cost of holding；2. the totle drilling cost of this device should not be excessively high and facilitates operator's installing and dismounting；3. this high-performance
Mechanism will be designed as modularity, will largely apply to the configuration of this numerically-controlled machine tool；4. this mechanism can by clamped one time technique,
Multinomial manufacturing procedure is completed, avoids leading to concentricity because of multiple clamping；5. this mechanism guarantees each component by being mechanically fixed
Synchronous high-speed rotation, oil pressure cntrol is flexible, and stability is strong；6. this mechanism structure is close, is not required to additionally increase space, meet not
With the timeliness under processing conditions, it is greatly improved working efficiency.
Usual CNC machine configure knife tower centre-drilling hole, the structure be able to satisfy cope with client to workpiece manufacturing procedure compared with
Simply, it is not required to repeatedly realize workpiece end face centre-drilling hole process conditions.If in face of that need to realize both ends centre-drilling hole etc. compared with machining long workpieces
When manufacturing procedure, it need to realize that the tailstock that first drills again withstands workpiece then normal process workpiece outer diameter processing the first procedure, do
Another side process Shi Zexu changes face, and clamping realizes that centre-drilling hole tailstock withstands workpiece and carrying out turning process again, at this time because of workpiece
Cantilevered out chuck end is longer, and clamping workpiece axial direction concentricity not can guarantee, and drill centers whipping power is excessive, and user can uninterruptedly send out
Raw centre drill Broken condition seriously affects processing efficiency or even processes and bad causes material scrap.And then influence product quality product
Matter increases and scraps object, will affect brand effect when serious.
Utility model content
In view of the foregoing deficiencies of prior art, the utility model aim is to provide a kind of improved main-shaft core
Drill mechanism improves the stability and precision of processing, reaches high-efficiency high-precision production, the effect of intellectualized detection.
In order to achieve the above objects and other related objects, the utility model provides a kind of improved main-shaft core drilling machine
Structure, including headstock, spindle drum, main shaft, hollow pull rod, collet, telescopic oil cylinder, angling cylinder, center bit, the main shaft peace
It can be rotated in headstock loaded on blocking in the headstock, spindle drum, the hollow pull rod is located in the main shaft and can be
Rotation, described hollow pull rod one end are connect with the angling cylinder in main shaft, and the other end is connect with the collet, the hollow drawing
Centre drill mandrel is equipped in bar, centre drill mandrel one end is connect with the telescopic oil cylinder, the other end and the center bit
Connection.
Preferably, the both ends inside the hollow pull rod be equipped with needle bearing, the needle bearing end be equipped with oil sealing and
Locking sleeve can play lubrication sealing protection and end face limit function to needle bearing.
Preferably, the centre drill heart the tip of the axis is equipped with bracket, and the both ends of the bracket are equipped with fixed plate, described flexible
Oil cylinder is connected on bracket by fixed plate, and fixed frame is equipped between the spindle drum and the bracket, is provided for telescopic oil cylinder
Firm support effect.
Preferably, the fixed plate is equipped with sensor stand, and the sensor stand is equipped with close to switch, close to open
Close the stroke of detectable telescopic oil cylinder.
Preferably, the fixed bracket of oil cylinder, the fixed bracket locking of oil cylinder and headstock are equipped between the headstock and bracket
It is enclosed with stress reflux is formed on bracket, guarantees telescopic oil cylinder and front-end of spindle organisation operations stability.
Preferably, the centre drill mandrel and telescopic oil cylinder connecting pin are equipped with double end round key, make its center infiltrate axis according to
Fixation locus is mobile, and abrasion long afterwards can't be used to cause transfer problem because of needle bearing.
Preferably, positioning sleeve and stroke detection ring are equipped between the centre drill mandrel and the telescopic oil cylinder.
Preferably, the angling cylinder rear end is equipped with sensing bracket, and dress connects there are two close to switch on the sensing bracket
Nearly switch is for detecting the flexible stroke detection ring position of oil cylinder.
Preferably, the centre drill mandrel is fixed on the center bit by screw cap sleeve and gland.
As described above, a kind of improved main-shaft core drill mechanism provided by the utility model, has the advantages that
By providing a kind of centre-drilling hole device being built in spindle of numerical control lathe, using by original main shaft body, pull rod planning
Design structure is simple, drives main shaft inner axis of heart and center bit to move axially by the expanding-contracting action of hydraulic cylinder, so as to incite somebody to action
Part need to do both ends or back center drilling processing technique compared with machining long workpieces and simplify, and guarantee main shaft inside center drilling processing more
To stablize accurate effect.Workpiece outer diameter, end face, groove profile, screw thread and back center hole machined can be completed in clamped one time, at certain
The processing technology time can be greatlyd save under a little special workpiece process conditions, and can avoid part machining long workpieces change face machining center hole it
Tremble chatter knife, cutting output inconsistence problems.Using the dynamic balancing of patented technology and self compensating system inside centre drill, even if needle
It is still processable to blank or inclined-plane；The mechanism by high-accuracy P3 grades of needle bearing be placed in centre drill mandrel and hollow pull rod it
Between, it is ensured that stability and precision when processing when centre drill is mobile.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of improved main-shaft core drill mechanism.
1, spindle drum, 2, main shaft, 3, hollow pull rod, 4, centre drill mandrel, 5, needle bearing, 6, oil sealing, 7, locking sleeve, 8,
Sensing bracket, 9, close switch, 10, fixed plate, 11, bracket, 12, sensor stand, 13, telescopic oil cylinder, 15, double end round key,
16, positioning sleeve, 17, detection ring, 18, fixed frame, 19, center bit, 20, collet, 21, the fixed bracket of oil cylinder, 22, revolution oil
Cylinder.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig. 1.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, it should all still fall in the utility model institute
The technology contents of announcement obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right",
The term of " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model,
Its relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
The utility model discloses a kind of centre drill mechanism, oil pressure cntrol telescopic oil cylinder brake piston bar drives center auger spindle
The working principle to drill to high speed rotation workpiece end face is realized to mobile and fitted bearing Internal and external cycle rolling relation.Main assembly
Have: main shaft, hollow pull rod, needle bearing, centre drill mandrel, supporting block, telescopic oil cylinder, close to switch, centre drill head etc..
The present utility model patent is that the raising type structure design of numerically controlled lathe meets visitor within the scope of controllable costs
In the more situation of family workpieces processing process, the caused machining accuracy error of multiple clamping, flexible and changeable, the scope of application are avoided
Extensively.
The present utility model patent is a kind of transformation numerically controlled lathe, i.e., relative to traditional numeric-control lathe tool tower centre-drilling hole
The corrective measure of technique, principle is simple and installation and disassembly it is more convenient flexibly, facilitate the assembling and after sale of on-site assembly personnel
The maintenance of maintenance personal mitigates the operation intensity of worker, greatly improves workpiece quality requirement.
As shown in Figure 1, the utility model provides a kind of improved main-shaft core drill mechanism, including headstock, spindle drum
1, main shaft 2, hollow pull rod 3, collet 20, telescopic oil cylinder 13, angling cylinder 22, center bit 19, the main shaft 2 are installed on described
Blocking can rotate in headstock in headstock, spindle drum 1, and the hollow pull rod 3 is located in the main shaft 2 and can be in main shaft 2
Interior rotation, described 3 one end of hollow pull rod are connect with the angling cylinder 22, and the other end is connect with the collet 20, described hollow
Centre drill mandrel 4 is equipped in pull rod 3, described 4 one end of centre drill mandrel is connect with the telescopic oil cylinder 13, the other end with it is described in
Heart drill bit 19 connects.
In the present embodiment, the both ends inside the hollow pull rod 3 are equipped with needle bearing 5,5 end of needle bearing
Equipped with oil sealing 6 and locking sleeve 7, lubrication sealing protection and end face limit function can be played to needle bearing 5.
In the present embodiment, the end of the centre drill mandrel 4 is equipped with bracket 11, and the both ends of the bracket 11, which are equipped with, to be fixed
Plate 10, the telescopic oil cylinder 13 are connected on bracket 11 by fixed plate, are equipped between the spindle drum 1 and the bracket 11
Fixed frame 18 provides firm support effect for telescopic oil cylinder 13.
In the present embodiment, the fixed plate 10 is equipped with sensor stand 12, and the sensor stand 12 is equipped with and connects
Nearly switch, close to the stroke for switching detectable telescopic oil cylinder 13.
In the present embodiment, the fixed bracket 21 of oil cylinder, the fixed bracket 21 of oil cylinder are equipped between the headstock and bracket 11
Stress reflux is formed in locking and headstock and bracket 11 to enclose, and guarantees telescopic oil cylinder 13 and front-end of spindle organisation operations stability.
In the present embodiment, the centre drill mandrel 4 is equipped with double end round key 15 with 13 connecting pin of telescopic oil cylinder, makes its center
Unbearable axis 4 is mobile according to fixation locus, and abrasion long afterwards can't be used to cause transfer problem because of needle bearing 5.
In the present embodiment, it is equipped with positioning sleeve 16 between the centre drill mandrel 4 and the telescopic oil cylinder 13 and stroke is examined
Survey ring 17.
In the present embodiment, 22 rear end of angling cylinder is equipped with sensing bracket 8, on the sensing bracket 8 there are two dresses
Close to switch 9, it is used to detect flexible 17 position of stroke detection ring of oil cylinder close to switch 9.
In the present embodiment, the centre drill mandrel 19 is fixed on the center bit 19 by screw cap sleeve and gland.
The working principle of the present utility model patent: for main shaft internal center drilling additional on the basis of original main axle structure
Mechanism.It is bored and is moved by telescopic oil cylinder control centre, and support centre drill mandrel by the hollow drawing of main shaft by high-accuracy needle bearing
Bar is separated with the movement of centre drill mandrel high speed rotation, realizes that main shaft clamp workpiece does high speed rotation, center drill bit grinds axis
Boring action is completed to linear motion.When can avoid that centre-drilling hole technique need to be done because of machining long workpieces, the cantilevered out too long centering of workpiece
With outside cylinder decentraction problem and centre drill breakage problem；Processing efficiency can also be greatly promoted simultaneously, reduce operator's work
It is improved work efficiency again while amount and output.
Main shaft 2 is installed on inside spindle drum 1, and can in head high speed rotation.Hollow pull rod 3 connects angling cylinder and folder
First 20 and closely connect with main shaft 2 three formed one group can do high speed rotation and front and back pulling action.Telescopic oil cylinder 13 passes through solid
Fixed board 10 is connected on bracket 11；Fixed frame 18 is connected on spindle drum 1 and bracket 11, is provided for telescopic oil cylinder 13 firm
Support effect, while being locked on headstock 1 and bracket 11 by the fixed bracket 21 of oil cylinder and to form stress reflux and enclose, guaranteed
Telescopic oil cylinder 13 and front-end of spindle organisation operations stability.12 end face of sensor stand is locked in fixed plate 10, and is equipped with and is connect
The nearly stroke for switching detectable telescopic oil cylinder 13 equally configure sensing bracket 8 in angling cylinder rear end, and close opens equipped with two
9 are closed for detecting flexible 17 positions of stroke detection ring of oil cylinder, for automation motion flow provide reliable feedback signal with
The fluency of movement.Centre drill mandrel 4 is placed in hollow pull rod 3, and is installed on hollow pull rod 3 via high-accuracy needle bearing 5
Internal both ends, and 5 end of needle bearing be equipped with oil sealing 6 and locking sleeve 7, needle bearing 5 can be played lubrication sealing protection with
End face limit function.19 one end of centre drill mandrel passes through screw cap sleeve and gland locking center bit 19；The other end and flexible oil
13 piston rod of cylinder is fastenedly connected.Realize a procedure can to the functions such as back drill and facing, grooving, drilling, from
And effectively increase working efficiency.
During the work time, mechanism is moved axially by 13 piston of oil pressure solenoid valve control telescopic oil cylinder, drives centre drill
Mandrel 4 axially moves with center bit.The high-accuracy needle bearing 5 of two P3 grades is configured at 3 inside both ends of hollow pull rod, is made
Its hollow pull rod 3 drives 5 inner ring of needle bearing to do high speed rotation, and 5 inner ring of needle bearing makes with 4 precision-fit of centre drill mandrel
Its asynchronous rotation, also centered on infiltrate axis 4 in needle bearing 5 movement provide stable support.Centre drill mandrel 4 with stretch
13 connecting pin of contracting oil cylinder is equipped with double end round key 15, keeps the unbearable axis 4 in its center mobile according to fixation locus, can't be because of needle roller axis
Holding 5 used abrasion long afterwards to cause transfer problem.13 backend arrangement of telescopic oil cylinder is bored close to the detectable telescopic oil cylinder 13 of switch 9
Hole depth, while angling cylinder rear end equally configures two and detects collet clamping and release signal close to switch 9, is automatic detection
Signal process of feedback provides effective necessary condition.Because telescopic oil cylinder 13 stretch out it is cantilevered out outside angling cylinder it is longer, spy matches
Connection supporting mechanism fixed frame 18 and the fixed bracket 21 of oil cylinder are set, annular ring form force flow line is formed, ensure that stability of strutting system,
Rear end whipping damage bearing or supporting mechanism will not be caused by making its main shaft when rotating at high speed.It is final to realize main shaft 2, hollow pull rod
3,5 outer ring of needle bearing, which synchronizes, does high speed rotation movement；Telescopic oil cylinder 13 drive centre drill mandrel 4 and 5 inner ring of needle bearing and
The whole axial movement of center bit 19.20 clamping workpiece high speed rotation of collet, center bit 19, which axially moves, realizes drilling function
Energy.
In conclusion the utility model provides a kind of improved main-shaft core drill mechanism, structure is simple, adaptable.
By controlling under the premise of referring again to standard main shaft bindiny mechanism under a certain range cost allows, using oily with spindle drum and collet
Cylinder shaft holds the close connection type of segmentation, because the structure installation and adjustment are convenient, when processing needs double-face drilling to position compared with machining long workpieces, no
The processes such as outer diameter, end face, back drill need to can be completed in a procedure, changing face using the long turning end drilling of high cantilever
It can be directly realized by tailstock when processing another procedure and withstand workpiece progress turnery processing, high risk adds when avoiding cantilevered out axis too long
Work technique, and guarantee concentricity between drill centers and original processing face.The stability and precision for greatly improving processing, match simultaneously
It sets proximity switch inspection center and bores signal stabilization transmission when punch position detection function guarantees to process and act to be connected and stablize, reach high
Efficiency high-precision, the effect of intellectualized detection.So the utility model effectively overcomes various shortcoming in the prior art and has
High industrial utilization value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (9)
1. a kind of improved main-shaft core drill mechanism, it is characterised in that: including headstock, spindle drum, main shaft, hollow pull rod,
Collet, telescopic oil cylinder, angling cylinder, center bit, the main shaft are installed on that the headstock, blocking can be in head in spindle drum
Rotation in seat, the hollow pull rod are located in the main shaft and can rotate in main shaft, described hollow pull rod one end and described time
Turn oil cylinder connection, the other end is connect with the collet, and centre drill mandrel, the centre drill mandrel one are equipped in the hollow pull rod
End is connect with the telescopic oil cylinder, and the other end is connect with the center bit.
2. a kind of improved main-shaft core drill mechanism according to claim 1, it is characterised in that: in the hollow pull rod
The both ends in portion are equipped with needle bearing, and the needle bearing end is equipped with oil sealing and locking sleeve.
3. a kind of improved main-shaft core drill mechanism according to claim 2, it is characterised in that: the centre drill mandrel
End be equipped with bracket, the both ends of the bracket are equipped with fixed plate, and the telescopic oil cylinder is connected on bracket by fixed plate, institute
It states and is equipped with fixed frame between spindle drum and the bracket.
4. a kind of improved main-shaft core drill mechanism according to claim 3, it is characterised in that: set in the fixed plate
There is sensor stand, the sensor stand is equipped with close to switch.
5. a kind of improved main-shaft core drill mechanism according to claim 4, it is characterised in that: the headstock and branch
The fixed bracket of oil cylinder is equipped between frame.
6. a kind of improved main-shaft core drill mechanism according to claim 1, it is characterised in that: the centre drill mandrel
Double end round key is equipped with telescopic oil cylinder connecting pin.
7. a kind of improved main-shaft core drill mechanism according to claim 6, it is characterised in that: the centre drill mandrel
Positioning sleeve and stroke detection ring are equipped between the telescopic oil cylinder.
8. a kind of improved main-shaft core drill mechanism according to claim 4, it is characterised in that: after the angling cylinder
End is equipped with sensing bracket, close to switch there are two dresses on the sensing bracket.
9. a kind of improved main-shaft core drill mechanism according to claim 1, it is characterised in that: the centre drill mandrel
The center bit is fixed on by screw cap sleeve and gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538730.7U CN208929250U (en) | 2018-09-20 | 2018-09-20 | A kind of improved main-shaft core drill mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538730.7U CN208929250U (en) | 2018-09-20 | 2018-09-20 | A kind of improved main-shaft core drill mechanism |
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| Publication Number | Publication Date |
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| CN208929250U true CN208929250U (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821538730.7U Active CN208929250U (en) | 2018-09-20 | 2018-09-20 | A kind of improved main-shaft core drill mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014274A (en) * | 2018-09-20 | 2018-12-18 | 程泰机械（吴江）有限公司 | A kind of improved main-shaft core drill mechanism |
-
2018
- 2018-09-20 CN CN201821538730.7U patent/CN208929250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014274A (en) * | 2018-09-20 | 2018-12-18 | 程泰机械（吴江）有限公司 | A kind of improved main-shaft core drill mechanism |
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