CN106938345A - A kind of workpiece pre-tightening mechanism - Google Patents
A kind of workpiece pre-tightening mechanism Download PDFInfo
- Publication number
- CN106938345A CN106938345A CN201710234625.8A CN201710234625A CN106938345A CN 106938345 A CN106938345 A CN 106938345A CN 201710234625 A CN201710234625 A CN 201710234625A CN 106938345 A CN106938345 A CN 106938345A
- Authority
- CN
- China
- Prior art keywords
- flank
- driver plate
- mounting seat
- tooth driver
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
- B23B23/04—Live centres
- B23B23/045—Live centres the centres being adjustable
Abstract
The invention discloses a kind of workpiece pre-tightening mechanism, including connection packing, mounting seat, adapter sleeve, flank of tooth driver plate, first is top and second top, connection packing is fixed on machine tool chief axis, mounting seat is fixed on the front end of connection packing, the middle part of the first top front end for being fixed on mounting seat, flank of tooth driver plate is set in the first top outside, first top tip is stretched out from the front end of flank of tooth driver plate, flank of tooth driver plate is fixed in mounting seat, flank of tooth driver plate holds out against unit by an elasticity and held out against, adapter sleeve is set in the outside of flank of tooth driver plate, adapter sleeve is fixed in mounting seat, the second top tip just tip top to first, second top top is coaxially disposed with first, second top is arranged on a hydraulic tailstock sleeve, hydraulic tailstock sleeve is connected with machine tool feed unit.The workpiece pre-tightening mechanism structure is simple, low cost, and its flank of tooth driver plate can play a part of end face driving and mitigate bounce, be conducive to improving and ensureing Workpiece Machining Accuracy.
Description
Technical field
The present invention relates to a kind of jacking mechanism, specifically a kind of workpiece pre-tightening mechanism.
Background technology
, it is necessary to using jacking mechanism top tight workpiece, complete to process by top top tight workpiece in lathe process.Existing work
Part jacking mechanism generally has two kinds of forms, and one kind is top fixed jacking mechanism, and heart line and top center line be not within the workpiece
During consistent or workpiece gravity center eccentric, top and workpiece concentricity can not be adjusted because of top fixation, it is top inevitably to produce
Raw bounce, influences Workpiece Machining Accuracy, in addition, this jacking mechanism is usually hydraulic-driven, complex structure is with high costs；Separately
One kind is centre with endlong movement, and bouncing of centers amplitude is big, causes precision after work pieces process not enough.For example CN102806477A is disclosed
A kind of Machinetool workpiece clamping device, including scroll chuck, back centre, the scroll chuck rear are provided with elastic rolling center；Institute
Stating elastic rolling center includes tapered sleeve；Provided with blocking, compression spring, preceding top in the tapered sleeve；The compression spring is connected to
Block and it is preceding it is top between；The preceding top extension into scroll chuck；The preceding top bar portion is socketed in oriented scroll chuck
The limited block of extension；The preceding top center is in same horizontal line with back centre center.The clamping device, which is utilized, compresses bullet
The elasticity of spring, makes preceding tail spindle to flexible, coordinates all the time with workpiece positioning datum end centre bore, play certralizing ability, workpiece is another
One end is withstood with back centre, the preceding top workpiece positioning datum end face that is compressed to is contacted with limited block, scroll chuck locking, though can
The lengthwise dimension and workpiece centre of guarantee workpiece in the same horizontal line, but are equally existed because of caused by bouncing of centers
The problem of Workpiece Machining Accuracy is not enough.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of simple in construction, cost in view of the shortcomings of the prior art
Workpiece pre-tightening mechanism that is low, being conducive to improving and ensure Workpiece Machining Accuracy.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of workpiece pre-tightening mechanism, including terminal pad
Root, mounting seat, adapter sleeve, flank of tooth driver plate, first top and second top, described connection packing is fixed on machine tool chief axis,
Described mounting seat is fixed on the front end of described connection packing, the first described top front end for being fixed on described mounting seat
Middle part, described flank of tooth driver plate is set in the first described top outside, and described the first top tip is from described
The front end of flank of tooth driver plate is stretched out, and described flank of tooth driver plate is fixed in described mounting seat, and described flank of tooth driver plate is by an elasticity
Hold out against unit to hold out against, described adapter sleeve is set in the outside of described flank of tooth driver plate, described adapter sleeve is fixed on described
In mounting seat, the second described top tip is just to the first described top tip, and described second is top and described
First it is top be coaxially disposed, described second it is top be arranged on a hydraulic tailstock sleeve, described hydraulic tailstock sleeve and machine
Bed feed unit be connected, during work, first it is top and second it is top respectively top tight workpiece two ends, the front end face of flank of tooth driver plate and
The rear end face laminating of workpiece.
Workpiece pre-tightening mechanism structure disclosed by the invention is simple, low cost, is conducive to improving and ensureing Workpiece Machining Accuracy.
During work, pass through first top and the second top carry out centralized positioning.Machine tool feed unit promotes the movement of hydraulic tailstock sleeve, band
Dynamic second it is top shift to workpiece, by first top and the second top two ends for distinguishing top tight workpiece.Elasticity holds out against unit to the flank of tooth
Driver plate imposes elastic thrust, and the front end face of flank of tooth driver plate is fitted with the rear end face of workpiece, plays end face driving and mitigates bounce
Effect, when machine tool chief axis rotates, you can external diameter cutting is carried out to workpiece.
Described elasticity holds out against unit including multigroup disc spring, through multiple between described flank of tooth driver plate and described mounting seat
Screw is connected, and each described screw includes offering on threaded portion and the installation portion being wholely set, described flank of tooth driver plate many
The cut-off ring being arranged on described flank of tooth driver plate is integrated on front side of individual installation cavity, each described installation cavity, it is each described
Screw sequentially pass through cut-off ring described in one and the installation cavity described in one is threadedly coupled with described mounting seat, Mei Gesuo
One group of described disc spring for being in compressive state is arranged with the installation portion stated, the front end of this group of disc spring is resisted against described in one
On the rear end face for separating ring, the rear end of this group of disc spring is resisted against on the front end face of described mounting seat, each described cut-off ring
Front end face and screw through the cut-off ring head of screw there is gap.The setting of above-mentioned multigroup disc spring, is dialled to the flank of tooth
Fold preferable elasticity and hold out against effect, and be conducive to space-saving, make jacking mechanism overall structure more compact.Screw will not be right
Disc spring causes interference, is conducive to disc spring to hold out against the elasticity of flank of tooth driver plate, it is ensured that what end face drove is smoothed out.
Regulation jackscrew is installed, the interior of described regulation jackscrew rectifies top to described first in described mounting seat
Sideways, described regulation jackscrew is used to adjust the first top concentricity between workpiece.By adjusting regulation jackscrew, the can adjust
In the one top concentricity between workpiece to preferable scope（Typically within 1）, so as to play the work for further mitigating bounce
With, it is ensured that workpiece Accuracy of finish.
It is provided with anti-rotation jackscrew, described flank of tooth driver plate and offers and described anti-rotation on the side wall of described adapter sleeve
The corresponding stopper slot in jackscrew position, the inner of described anti-rotation jackscrew is stretched into described stopper slot.Anti-rotation jackscrew can effectively be kept away
Exempt from the relative rotation between adapter sleeve and flank of tooth driver plate, it is ensured that mechanism assembly precision.
Some O-ring seals are installed between described adapter sleeve and described flank of tooth driver plate.O-ring seal support,
It is oriented to and waterproof action.
The front end of described flank of tooth driver plate has been wholely set tapered portion, and described the first top tip is from described taper
Portion is stretched out.The setting of tapered portion, is conducive to space-saving and further reduction cost of material.
Compared with prior art, the advantage of the invention is that：Workpiece pre-tightening mechanism disclosed by the invention, it is simple in construction, into
This is low, is conducive to improving and ensureing Workpiece Machining Accuracy.When the jacking mechanism works, pass through first top and the second top progress
Centralized positioning.Machine tool feed unit promotes the movement of hydraulic tailstock sleeve, drive second it is top shifts to workpiece, it is top and the by first
The two ends of two top top tight workpieces respectively.Elasticity holds out against unit and elastic thrust, the front end face of flank of tooth driver plate is imposed to flank of tooth driver plate
Fitted with the rear end face of workpiece, play a part of end face driving and mitigate bounce, when machine tool chief axis rotates, you can workpiece is carried out
External diameter is cut.
Brief description of the drawings
Fig. 1 is the structural representation of workpiece pre-tightening mechanism in embodiment；
Fig. 2 is enlarged drawing at A in Fig. 1.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
The workpiece pre-tightening mechanism of embodiment 1, as illustrated, including connection packing 1, mounting seat 2, adapter sleeve 3, flank of tooth driver plate
4th, first top 5 and second top 6, connection packing 1 is fixed on machine tool chief axis（Not shown in figure）On, the company of being fixed on of mounting seat 2
Connect the front end of packing 1, first top 5 is fixed in the middle part of the front end of mounting seat 2, mounting seat 2 and is provided with regulation jackscrew 21, adjusts
Save jackscrew 21 it is interior rectify top to first 5 side, regulation jackscrew 21 be used for adjust first top 5 with it is concentric between workpiece 8
Degree, flank of tooth driver plate 4 is set in first top 5 outside, and first top 5 tip is stretched out from the front end of flank of tooth driver plate 4, and the flank of tooth is dialled
Disk 4 is fixed in mounting seat 2, and flank of tooth driver plate 4 holds out against unit by an elasticity and held out against, and adapter sleeve 3 is set in the outer of flank of tooth driver plate 4
Side, adapter sleeve 3 is fixed in mounting seat 2, the tip at second top 6 tip just top to first 5, second top 6 and first
Top 5 are coaxially disposed, and second top 6 is arranged on a hydraulic tailstock sleeve 61, hydraulic tailstock sleeve 61 and machine tool feed unit
（Not shown in figure）It is connected, during work, first top 5 and second top 6 distinguishes before the two ends of top tight workpiece 8, flank of tooth driver plate 4
End face is fitted with the rear end face of workpiece 8.
In embodiment 1, elasticity, which holds out against unit, includes multigroup disc spring 71, through multiple screws between flank of tooth driver plate 4 and mounting seat 2
72 are connected, and each screw 72 includes offering multiple installation cavitys on threaded portion 73 and the installation portion 74 being wholely set, flank of tooth driver plate 4
41, the front side of each installation cavity 41 is integrated the cut-off ring 42 being arranged on flank of tooth driver plate 4, and each screw 72 sequentially passes through one
Cut-off ring 42 and an installation cavity 41 are threadedly coupled with mounting seat 2, and one group is arranged with each installation portion 74 and is in compressive state
Disc spring 71, the front end of this group of disc spring 71 is resisted against on the rear end face of a cut-off ring 42, and the rear end of this group of disc spring 71 is resisted against
On the front end face of mounting seat 2, each separate the front end face of ring 42 and through the head of screw 75 of the screw 72 of the cut-off ring 42
With gap 43.
The workpiece pre-tightening mechanism of embodiment 2, as illustrated, including connection packing 1, mounting seat 2, adapter sleeve 3, flank of tooth driver plate
4th, first top 5 and second top 6, connection packing 1 is fixed on machine tool chief axis（Not shown in figure）On, the company of being fixed on of mounting seat 2
Connect the front end of packing 1, first top 5 is fixed in the middle part of the front end of mounting seat 2, mounting seat 2 and is provided with regulation jackscrew 21, adjusts
Save jackscrew 21 it is interior rectify top to first 5 side, regulation jackscrew 21 be used for adjust first top 5 with it is concentric between workpiece 8
Degree, flank of tooth driver plate 4 is set in first top 5 outside, and the front end of flank of tooth driver plate 4 has been wholely set tapered portion 45, first top 5
Tip stretched out from tapered portion 45, flank of tooth driver plate 4 is fixed in mounting seat 2, and flank of tooth driver plate 4 holds out against unit by an elasticity and held out against,
Adapter sleeve 3 is set in the outside of flank of tooth driver plate 4, and some O-ring seals 32 are provided between adapter sleeve 3 and flank of tooth driver plate 4, connection
Set 3 is fixed in mounting seat 2, is provided with anti-rotation jackscrew 31, flank of tooth driver plate 4 and is offered and anti-rotation top on the side wall of adapter sleeve 3
The corresponding stopper slot 44 in 31 positions of silk, the inner of anti-rotation jackscrew 31 is stretched into stopper slot 44, and second top 6 tip is just to first
Top 5 tip, second top 6 is coaxially disposed with first top 5, and second top 6 is arranged on a hydraulic tailstock sleeve 61, liquid
Press barrel of tail stock 61 and machine tool feed unit（Not shown in figure）It is connected, during work, first top 5 and second top 6 pushes up respectively
The two ends of clamping of workpieces 8, the front end face of flank of tooth driver plate 4 is fitted with the rear end face of workpiece 8.
In embodiment 2, elasticity, which holds out against unit, includes multigroup disc spring 71, through multiple screws between flank of tooth driver plate 4 and mounting seat 2
72 are connected, and each screw 72 includes offering multiple installation cavitys on threaded portion 73 and the installation portion 74 being wholely set, flank of tooth driver plate 4
41, the front side of each installation cavity 41 is integrated the cut-off ring 42 being arranged on flank of tooth driver plate 4, and each screw 72 sequentially passes through one
Cut-off ring 42 and an installation cavity 41 are threadedly coupled with mounting seat 2, and one group is arranged with each installation portion 74 and is in compressive state
Disc spring 71, the front end of this group of disc spring 71 is resisted against on the rear end face of a cut-off ring 42, and the rear end of this group of disc spring 71 is resisted against
On the front end face of mounting seat 2, each separate the front end face of ring 42 and through the head of screw 75 of the screw 72 of the cut-off ring 42
With gap 43.
During above-mentioned workpiece pre-tightening mechanism work, centralized positioning is carried out by first top 5 and second top 6.Machine tool feed
Unit promotes hydraulic tailstock sleeve 61 to move, and drives second top 6 to shift to workpiece 8, by top 6 difference of first top 5 and second
The two ends of top tight workpiece 8.Multigroup disc spring 71 imposes elastic thrust, front end face and the workpiece 8 of flank of tooth driver plate 4 to flank of tooth driver plate 4
Rear end face is fitted, and is played a part of end face driving and is mitigated bounce, when machine tool chief axis rotates, you can carry out outer quarter sawing to workpiece 8
Cut.
Claims (6)
1. a kind of workpiece pre-tightening mechanism, it is characterised in that including connection packing, mounting seat, adapter sleeve, flank of tooth driver plate, first top
Top with second, described connection packing is fixed on machine tool chief axis, and described mounting seat is fixed on described connection packing
Front end, the middle part of the described first top front end for being fixed on described mounting seat, described flank of tooth driver plate is set in described
First top outside, the first described top tip is stretched out from the front end of described flank of tooth driver plate, described flank of tooth driver plate
It is fixed in described mounting seat, described flank of tooth driver plate holds out against unit by an elasticity and held out against, and described adapter sleeve is set in institute
The outside for the flank of tooth driver plate stated, described adapter sleeve is fixed in described mounting seat, and the described second top tip is just right
The first described top tip, described second it is top with described first it is top be coaxially disposed, the second described top peace
On a hydraulic tailstock sleeve, described hydraulic tailstock sleeve is connected with machine tool feed unit, during work, and first is top and
The two ends of two top top tight workpieces respectively, the front end face of flank of tooth driver plate is fitted with the rear end face of workpiece.
2. a kind of workpiece pre-tightening mechanism according to claim 1, it is characterised in that described elasticity holds out against unit including many
Group disc spring, is connected between described flank of tooth driver plate and described mounting seat through multiple screws, and each described screw includes one
Multiple installation cavitys are offered on the threaded portion of setting and installation portion, described flank of tooth driver plate, the front side of each described installation cavity
Be integrated the cut-off ring being arranged on described flank of tooth driver plate, each described screw sequentially pass through cut-off ring described in one and
Installation cavity described in one is threadedly coupled with described mounting seat, and one group is arranged with each described installation portion in compression shape
The described disc spring of state, the front end of this group of disc spring is resisted against on the rear end face of the cut-off ring described in one, the rear end of this group of disc spring
On the front end face for being resisted against described mounting seat, the spiral shell of the front end face and the screw through the cut-off ring of each described cut-off ring
There is gap between ailhead.
3. a kind of workpiece pre-tightening mechanism according to claim 1, it is characterised in that regulation is provided with described mounting seat
Jackscrew, described the interior of regulation jackscrew is rectified to the first described top side, and described regulation jackscrew is used to adjust first
The top concentricity between workpiece.
4. a kind of workpiece pre-tightening mechanism according to claim 1, it is characterised in that installed on the side wall of described adapter sleeve
Having offered on anti-rotation jackscrew, the described flank of tooth driver plate stopper slot corresponding with described anti-rotation jackscrew position, described anti-rotation
The inner of jackscrew is stretched into described stopper slot.
5. a kind of workpiece pre-tightening mechanism according to claim 1, it is characterised in that described adapter sleeve and the described flank of tooth
Some O-ring seals are installed between driver plate.
6. a kind of workpiece pre-tightening mechanism according to claim 1, it is characterised in that the front end one of described flank of tooth driver plate
Tapered portion is provided with, the first described top tip is stretched out from described tapered portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234625.8A CN106938345B (en) | 2017-04-12 | 2017-04-12 | Workpiece jacking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234625.8A CN106938345B (en) | 2017-04-12 | 2017-04-12 | Workpiece jacking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106938345A true CN106938345A (en) | 2017-07-11 |
| CN106938345B CN106938345B (en) | 2019-12-24 |
Family
ID=59464810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234625.8A Active CN106938345B (en) | 2017-04-12 | 2017-04-12 | Workpiece jacking mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN106938345B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909515A (en) * | 2019-04-25 | 2019-06-21 | 长江师范学院 | Eccentric adjustable tailstock |
| CN110496975A (en) * | 2019-08-26 | 2019-11-26 | 上海丰禾精密机械有限公司 | A kind of waterproof frock clamp mechanism and its working method being applicable in different lengths axial workpiece |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613410A1 (en) * | 1985-04-23 | 1986-12-18 | Hans-August 2313 Raisdorf Rohweder | Face driver centre |
| CN204052946U (en) * | 2014-08-05 | 2014-12-31 | 潍柴动力股份有限公司 | One is stirred top |
| CN205147905U (en) * | 2015-12-04 | 2016-04-13 | 长春轨道客车装备有限责任公司 | Novel axle for vehicle location drive frock |
| CN205254129U (en) * | 2015-12-04 | 2016-05-25 | 温岭市明华齿轮有限公司 | Top anchor clamps of conical surface drive |
| CN106141327A (en) * | 2015-05-12 | 2016-11-23 | 利勃海尔齿轮技术股份有限公司 | There is end face and drive the Workpiece clamping device of machine |
| CN206009861U (en) * | 2016-08-29 | 2017-03-15 | 万向钱潮传动轴有限公司 | Automatically drive top |
| CN206689451U (en) * | 2017-04-12 | 2017-12-01 | 宁波海天精工股份有限公司 | A kind of workpiece pre-tightening mechanism |
-
2017
- 2017-04-12 CN CN201710234625.8A patent/CN106938345B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613410A1 (en) * | 1985-04-23 | 1986-12-18 | Hans-August 2313 Raisdorf Rohweder | Face driver centre |
| CN204052946U (en) * | 2014-08-05 | 2014-12-31 | 潍柴动力股份有限公司 | One is stirred top |
| CN106141327A (en) * | 2015-05-12 | 2016-11-23 | 利勃海尔齿轮技术股份有限公司 | There is end face and drive the Workpiece clamping device of machine |
| CN205147905U (en) * | 2015-12-04 | 2016-04-13 | 长春轨道客车装备有限责任公司 | Novel axle for vehicle location drive frock |
| CN205254129U (en) * | 2015-12-04 | 2016-05-25 | 温岭市明华齿轮有限公司 | Top anchor clamps of conical surface drive |
| CN206009861U (en) * | 2016-08-29 | 2017-03-15 | 万向钱潮传动轴有限公司 | Automatically drive top |
| CN206689451U (en) * | 2017-04-12 | 2017-12-01 | 宁波海天精工股份有限公司 | A kind of workpiece pre-tightening mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909515A (en) * | 2019-04-25 | 2019-06-21 | 长江师范学院 | Eccentric adjustable tailstock |
| CN110496975A (en) * | 2019-08-26 | 2019-11-26 | 上海丰禾精密机械有限公司 | A kind of waterproof frock clamp mechanism and its working method being applicable in different lengths axial workpiece |
| CN110496975B (en) * | 2019-08-26 | 2024-04-16 | 上海丰禾精密机械有限公司 | Waterproof tool clamp mechanism applicable to shaft parts with various lengths and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106938345B (en) | 2019-12-24 |
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