CN102371497A - Main shaft holding knife resetting mechanism of numerical control plane milling and boring machine - Google Patents
Main shaft holding knife resetting mechanism of numerical control plane milling and boring machine Download PDFInfo
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- CN102371497A CN102371497A CN201110259057XA CN201110259057A CN102371497A CN 102371497 A CN102371497 A CN 102371497A CN 201110259057X A CN201110259057X A CN 201110259057XA CN 201110259057 A CN201110259057 A CN 201110259057A CN 102371497 A CN102371497 A CN 102371497A
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- control plane
- main shaft
- piston rod
- boring machine
- push rod
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Abstract
The invention provides a main shaft holding knife resetting mechanism of a numerical control plane milling and boring machine. The mechanism comprises a cylinder, a new piston rod and a piston. The mechanism is characterized in that: the left end of the cylinder is fixedly connected with a connecting sleeve; the left end of the new piston rod is connected with a push rod; and an axial clearance X is formed between the left end face of the push rod and a main shaft sleeve. Through the mechanism, separation of a transmission device and the main shaft sleeve in a working state can be realized, and a rolling pair is not affected by a cutting force and a knife holding force in work, so that the high-speed re-cutting requirement of the numerical control plane milling and boring machine is met.
Description
Technical field
The present invention relates to the main spindle clamp tool mechanism of digital control plane milling and boring machine, related to the moving beam gantry boring and milling machine main spindle clamp tool resetting mechanism of numerical control specifically.
Background technology
Digital control plane milling and boring machine is mainly used in the multistation processing of heavy parts.It mainly is made up of lathe bed, gantry, slide, crossbeam, slip crate, main spindle box, square ram.Lathe bed is fixed on the basis, and left and right sides slide places on the lathe bed, and left and right pillar is separately fixed on the slide, and left and right pillar is linked together at the column end face through tie-beam, forms the gantry frame of a sealing.Lengthwise movement is done along the guide rail of lathe bed in gantry; Slip crate is done transverse movement along beam guideway; Crossbeam is done along the left and right pillar vertical guide rail and is moved both vertically; Side's ram band main spindle box and in slip crate, is moved both vertically, and realizes main axis rotation through motor, main spindle box transmission, thereby accomplishes the processing to part.Lathe also is furnished with the annex of difference in functionality, every kind of all automatically replaceable, automatic displacement calibration of annex, and except that the action of folder cutter was the pulling force realization through the butterfly spring generation, other actions all realized through the control of hydraulic jack.Because reasons in structure, main spindle clamp tool does not have resetting means, is in folder cutter state during the machine tool chief axis rotation all the time; Cutting force directly is passed to thrust bearing with folder cutter power, causes main shaft afterbody thrust bearing to bear the effect of cutting force and clamping force simultaneously, will produce high heat if main shaft is long-time when rotating at a high speed; Make thrust ball bearing heating, grind and hinder even crushing, main shaft can only low-speed running, approximately is not higher than 900 rev/mins; Even now, because the dynamic loading that this bearing is born when main axis rotation is quite big, this bearing also will often damage; Therefore can not adapt to the requirement that modern Digit Control Machine Tool is heavily cut at a high speed, restrict the high speed development of digital control plane milling and boring machine.
Summary of the invention
In order to overcome shortcoming of the prior art; The invention provides the main spindle clamp tool resetting mechanism of digital control plane milling and boring machine; Comprise: oil cylinder, new piston rod and piston; It is characterized in that: the left end of said oil cylinder is fixedly connected with coupling sleeve, and the left end of said new piston rod links to each other with a push rod, and end play X is arranged between the left side of said push rod and the rack sleeve.
Between said coupling sleeve, oil cylinder, new piston rod and the piston oil pocket (a, b, c) is arranged.
Be equipped with the rolling pair with radial centering between the said push rod diameter of axle and said new piston rod, the left end of said new piston rod links to each other with push rod through this rolling pair.
Beneficial effect of the present invention: owing to adopt technique scheme; Between the outer shroud of bearing and bearing holder (housing, cover), increase push rod, and had the gap of resetting between push rod and sleeve, promptly realized the main spindle clamp tool reset function; During cylinder action; Through keeping and the elimination gap that resets, be implemented in that device for loosing knife separates with rack sleeve under the main axis rotation state, thrust bearing does not bear cutting force and presss from both sides the influence of cutter power during the assurance main axis rotation; Eliminate the requirement that transferring power is realized in the gap in the time of satisfying the annex indexing again and change annex and cutter; This scheme has reduced shaft strength load, and the high heat that has produced when having avoided main shaft heavily to cut at a high speed is to the restriction of bearing, thereby the high speed that realizes digital control plane milling and boring machine is heavily cut.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Description of drawings: 1, oil cylinder 2, new piston rod 3, piston 4, stop collar 5, coupling sleeve 6, the rolling pair 7 that bears axial load, sleeve 8, push rod 10, bear rolling pair 11, the limited block of radial load
The specific embodiment
Below be to specify technical scheme of the present invention through accompanying drawing.
As shown in Figure 1; Numerical control gate boring-milling machine high-speed main spindle clamp tool resetting mechanism of the present invention is improved in addition on the basis of former mechanism; Increased the oil pocket c that realizes homing action, made 7 of push rod 8 and rack sleeves have the gap of resetting X, the span of X is between 1-3mm; Can guarantee that push rod 8 separates with rack sleeve 7 gets final product, if movement travel excessive then that will strengthen device for loosing knife.This digital control plane milling and boring machine main spindle clamp tool resetting mechanism mainly comprises oil cylinder 1, new piston rod 2 and piston 3, and the left end of oil cylinder 1 is fixedly connected and overlaps 5, and coupling sleeve 5 is fixed on the ram main spindle box; Form oil pocket c between the left side of step in coupling sleeve 5, oil cylinder 1 and the new piston rod 2, the left side composition oil pocket b of step in the right side of step and the oil cylinder 1 in the piston rod 2, oil pocket a is formed in the left side of the right side of step and piston 3 in the oil cylinder 1; The left end of new piston rod 2 is connected with push rod 8 through the rolling pair 6 that can bear axial load, the rolling pair 10 of left end through bearing axial load of the following diameter of axle of push rod 8 and new piston rod 2, and end play X is arranged between the left side of push rod 8 and the rack sleeve 7; Having on the new piston rod 2 can axially movable above that piston 3, and new piston rod 2 right-hand members connect stop collar 4, oil cylinder 1 right-hand member endoporus bolt limited block 11 through bolt.In this embodiment; The rolling pair 6 that bears axial load refers to thrust roller bearing, can also adopt thrust ball bearing in the practical application, and this rolling pair no longer receives the effect of axial force during owing to main axis rotation; Do not receive the restriction of bearing capacity and limit speed when therefore selecting; The rolling pair 10 of radial centering effect is meant needle bearing, can also adopt deep groove ball bearing, copper sheathing etc. in the practical application, can select according to structural requirement.
Claims (3)
1. the main spindle clamp tool resetting mechanism of digital control plane milling and boring machine; Comprise: oil cylinder, new piston rod and piston; It is characterized in that: the left end of said oil cylinder is fixedly connected with coupling sleeve; The left end of said new piston rod links to each other with a push rod, and end play X is arranged between the left side of said push rod and the rack sleeve.
2. main spindle clamp tool resetting mechanism according to claim 1 is characterized in that: between said coupling sleeve, oil cylinder, new piston rod and the piston oil pocket (a, b, c) is arranged.
3. main spindle clamp tool resetting mechanism according to claim 1 is characterized in that: be equipped with the rolling pair with radial centering between the said push rod diameter of axle and said new piston rod, the left end of said new piston rod links to each other with push rod through this rolling pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110259057XA CN102371497A (en) | 2011-09-05 | 2011-09-05 | Main shaft holding knife resetting mechanism of numerical control plane milling and boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110259057XA CN102371497A (en) | 2011-09-05 | 2011-09-05 | Main shaft holding knife resetting mechanism of numerical control plane milling and boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102371497A true CN102371497A (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110259057XA Pending CN102371497A (en) | 2011-09-05 | 2011-09-05 | Main shaft holding knife resetting mechanism of numerical control plane milling and boring machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102371497A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909589A (en) * | 2012-10-31 | 2013-02-06 | 普瑞森（安阳）机械有限公司 | Mechanical tool-changing spindle used at direct machining center |
| CN105965040A (en) * | 2016-07-21 | 2016-09-28 | 广州市敏嘉制造技术有限公司 | Machine tool with spindle tool holder |
| CN107716950A (en) * | 2017-09-29 | 2018-02-23 | 沈阳盛京精益数控机械有限公司 | A kind of ultra-thin main spindle box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200945565Y (en) * | 2006-08-14 | 2007-09-12 | 欧境企业股份有限公司 | Adjustment type vertical compression knife striking cylinder |
| JP2008000860A (en) * | 2006-06-26 | 2008-01-10 | Nippei Toyama Corp | Machine tool and machine tool of complex type |
| CN201040344Y (en) * | 2007-06-01 | 2008-03-26 | 杭州友佳精密机械有限公司 | Cutter exchanging mechanism |
| CN201659449U (en) * | 2010-02-04 | 2010-12-01 | 纽威数控装备（苏州）有限公司 | Water supply knife machining mechanism of high-speed central water outlet main shaft |
-
2011
- 2011-09-05 CN CN201110259057XA patent/CN102371497A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000860A (en) * | 2006-06-26 | 2008-01-10 | Nippei Toyama Corp | Machine tool and machine tool of complex type |
| CN200945565Y (en) * | 2006-08-14 | 2007-09-12 | 欧境企业股份有限公司 | Adjustment type vertical compression knife striking cylinder |
| CN201040344Y (en) * | 2007-06-01 | 2008-03-26 | 杭州友佳精密机械有限公司 | Cutter exchanging mechanism |
| CN201659449U (en) * | 2010-02-04 | 2010-12-01 | 纽威数控装备（苏州）有限公司 | Water supply knife machining mechanism of high-speed central water outlet main shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909589A (en) * | 2012-10-31 | 2013-02-06 | 普瑞森（安阳）机械有限公司 | Mechanical tool-changing spindle used at direct machining center |
| CN102909589B (en) * | 2012-10-31 | 2015-01-14 | 普瑞森（安阳）机械有限公司 | Mechanical tool-changing spindle used at direct machining center |
| CN105965040A (en) * | 2016-07-21 | 2016-09-28 | 广州市敏嘉制造技术有限公司 | Machine tool with spindle tool holder |
| CN107716950A (en) * | 2017-09-29 | 2018-02-23 | 沈阳盛京精益数控机械有限公司 | A kind of ultra-thin main spindle box |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |