CN102873576A - Feed change unit for fast metric/english conversion of small machine tool - Google Patents
Feed change unit for fast metric/english conversion of small machine tool Download PDFInfo
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- CN102873576A CN102873576A CN2012103817956A CN201210381795A CN102873576A CN 102873576 A CN102873576 A CN 102873576A CN 2012103817956 A CN2012103817956 A CN 2012103817956A CN 201210381795 A CN201210381795 A CN 201210381795A CN 102873576 A CN102873576 A CN 102873576A
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Abstract
The invention discloses a feed change unit for fast metric/english conversion of a small machine tool. The feed change unit comprises a control mechanism, a connection rod mechanism, a transmission mechanism, a slipping mechanism, a supporting mechanism and a positioning mechanism. Left and right swinging of the control mechanism pushes the connection rod mechanism to lead the transmission mechanism to move vertically on the slipping mechanism and stay at different positions so as to achieve metric/english conversion and different gear ratios. The supporting mechanism is used for achieving reserve rotating direction or relative rest relative to the transmission mechanism located on the same axis with the supporting mechanism. The positioning mechanism keeps the position of the transmission mechanism to be fixed when the transmission mechanism achieves function conversion and speed change. Therefore, the feed change unit has the function of achieving metric/english conversion in the small machine tool and is very convenient to operate.
Description
Technical field
The present invention relates to a kind of structure of machine tool component, relate in particular to the fast feed change unit of conversion of a kind of junior machine metric and English.
Background technology
Because it has enough spaces, yard and meter turn adopts a plurality of Combined clutchs to realize its function in the middle of medium-and-large-sized lathe.But just cumbersome for junior machine, feed change unit position especially, appearance and size is more compact.As everyone knows, speed change transmission (between main spindle box, the feed mechanism) in the middle of feed change unit is mainly used in realizing, in order to guarantee the variation feeding of driving-chain, can only be that the metric and English mapping function is placed outside the feed change unit, realize metric and English feeding conversion by the different plug-in gear of manual replacing, operation is inconvenience very, and plug-in gear is deposited separately and is not easy to preserve simultaneously, easily loses.
Summary of the invention
The invention provides a kind of fast feed change unit of conversion of junior machine metric and English that is applied to, this feed change unit can pass through the handle control link as required, simultaneously a pair of gear is implemented in the action of diverse location and the engagement of different gears, to change gearratio, to realize the function of metric and English transmission conversion.
The technical solution used in the present invention is: a kind of junior machine metric and English is the feed change unit of conversion fast, comprises operating mechanism, linkage, transmission mechanism (containing cylindrical and end face transmission), slipping mechanism, supporting mechanism, detent mechanism.It is characterized in that: operating mechanism is provided with handle and handle set, gear change hand lever, shift fork, and handle set links to each other with the rotating shaft of linkage, and gear change hand lever is fixed on the shift fork; Linkage is provided with rotating shaft, fork, connecting rod; Transmission mechanism is provided with cylindrical gear drive and the transmission of end face dental inlay, and it can realize mutual conversion under the drive of connecting rod; Slipping mechanism has adopted the spline guiding to guarantee the gear slippage, realizes yard and meter turn; Supporting mechanism is provided with bearing and power transmission shaft, has realized that the gear on same axis keeps different rotating speeds; Detent mechanism is provided with steel ball location, taper hole location, the location of realizing handle set, gear shift fork.It is mobile at splined shaft that operating mechanism promotes gear by linkage, realizes the transmission of metric system (or made in Great Britain) after putting in place from different gear engagements; As realizing the transmission of English system (or metric system), moving handle in the opposite direction then.
Handle set is located with steel ball, and the position of its corresponding cooperation counterbore is determined by the stroke that gear slides onto both sides, in order to guarantee gear engagement or the engagement of end face dental inlay.
Rotating shaft links to each other with handle set, fork by taper pin, by fork, the swing of handle is become the rectilinear motion of connecting rod.The connecting rod two ends are provided with draw-in groove and aim at two shifting slide gears, when the driving handle bar, promote simultaneously two gear move left and right by fork.
Two travelling gear end faces that promoted by connecting rod are furnished with jaw clutch, previous dental inlay transmission becomes meshed transmission gear when it is pushed to another position, gear-drivenly become the dental inlay transmission, except with different meshed transmission gear ratios changes, whole driving-chain direction also changes thereupon.Simultaneously different gears and the pinion of cone pulley have namely realized the function of gear.
Although because the travelling gear that has coexists on the axis, be not simultaneously transmission, so increased bearing at bore, in order to support different gears and splined shaft, on an axis, or not the function of rotating simultaneously to realize it.
Detent mechanism has adopted the mode of vertebral foramen location with the pinion of cone pulley engagement except the steel ball of handle set.Be about to pinion and be fixed in the shift fork groove, join from the different gear engagement position of cone pulley according to pinion at feed change unit panel place and make different taper holes, the purpose of locating to reach speed change.
This feed change unit has following characteristics: 1, function transforms simple.Namely only can realize conversion with a handle once-through operation; 2, the function conversion is accurate.Be that deciliter English must must be from, mutually noninterfere from, Ying Hegong; 3, save operation space.Only establish a handle, this is particularly important concerning junior machine.
Description of drawings
Fig. 1 is the present invention program's schematic diagram
Fig. 2 is the front view of invention scheme metric system transmission
Fig. 3 is the gear change hand lever cutaway view of invention scheme metric system transmission
Fig. 4 is the cutaway view of the present invention program's operating mechanism
Fig. 5 is the top view of the present invention program's linkage
Fig. 6 is the transmission diagram of the present invention program's metric system transmission
Fig. 7 is the rearview of the present invention program's linkage
Fig. 8 is the transmission diagram of the present invention program's transmission made in Great Britain
Sequence number explanation in the accompanying drawing: 1, gear change hand lever; 2, handlebar; 3, extension bar; 4, handle set; 5, positioning ball; 6, fork; 7, connecting rod; 8, splined shaft one; 9, gear one (27 tooth); 10, clutch one; 11, inner support bearing; 12, outer support bearing; 13, cone pulley (totally seven groups); 14, clutch two; 15, spring bearing; 16, gear two (27 tooth); 17,18,19,21 multiplication mechanisms; 20, splined shaft two; 22, splined shaft three; 23, gear three (27 tooth); 24, gear four (22 tooth); 25, splined shaft four; 26, gear five (27 tooth); 27, idle wheel (17 tooth); 28, shift fork; 29, location taper hole (7).
The specific embodiment
Such as Fig. 1,2,3,4,5,6,7, shown in 8, the present invention program is by operating mechanism (gear change hand lever 1, handlebar 2, handle set 4, shift fork 28), linkage (extension bar 3, fork 6, connecting rod 7), transmission mechanism (contains cylindrical and end face transmission, gear 1, clutch 1, cone pulley (totally seven groups) 13, clutch 2 14, gear 2 16, multiplication mechanism 17,18,19,21, gear 3 23, gear 4 24, gear 5 26, idle wheel 27), slipping mechanism (splined shaft 1, splined shaft 2 20, splined shaft 3 22, splined shaft 4 25), supporting mechanism (inner support bearing 11, outer support bearing 12, spring bearing 16), detent mechanism (positioning ball 5, location taper hole 29).
When handlebar is beaten to the metric system position, under the drive of connecting rod 7, gear one 9(slippage to the right on splined shaft 1, break away from the engagement with gear 5 26) and gear two 16(slippage to the right on splined shaft 2 20, break away from the engagement with clutch 2 14) move right simultaneously, gear 1 is by end face dental inlay and clutch one 10 engagements, and gear 2 16 is finished the conversion of a metric system transmission agency by cylindrical straight-tooth and gear 3 23 engagements.
The driving-chain of this moment is outside cone pulley (figure omits, totally four groups) → gear one 9 → clutch one 10 → cone pulley (totally seven groups) 13 → idle wheel, 27 → gear, 4 24 → gear, 3 23 → gear, 2 16 → multiplication mechanism, 17,18,19,21 → leading screw made in Great Britain (pitch 2.54mm).Because fixedly end face dental inlay engagement of this moment gear 1 and clutch 1, without relative motion, belong to one to one transmission, so the driving-chain gearratio is that outside cone pulley ratio * cone pulley number of teeth/multiplication of 17 * 17/22 * 27/27 * multiplication mechanism is than * 2.54, variation cone pulley and multiplication mechanism double than the metric system feeding driving-chain take millimeter as unit that just can obtain changing.
In this transmission, cone pulley (totally seven groups) 13 and gear 2 16 belong to an axis together from the feed casing, should be to rotate together.But the splined shaft at the splined shaft at cone pulley 13 places and gear 2 16 places is not same in the middle of this structure, in order to strengthen its rigidity, in the middle of clutch 2 14 endoporus bearing has been installed, and has so both realized the effect of mutual support, can realize mutual rotation again.
When handlebar is beaten to position made in Great Britain, under the drive of connecting rod 7, gear one 9(slippage left on splined shaft 1, break away from the engagement with clutch 1) and gear two 16(slippage left on splined shaft 2 20, break away from the engagement with gear 3 23) be moved to the left simultaneously, gear 1 is by outer Knucle-gear and gear 5 26 engagements, and gear 2 16 is finished once the conversion of transmission agency made in Great Britain by end face dental inlay and clutch 2 14 engagements.
The driving-chain of this moment is outside cone pulley (figure omits, totally four groups) → gear one 9 → gear 5 26 → gear 4 24 → idle wheel 27 → cone pulley (totally seven groups) 13 → clutch, 2 14 → gear, 2 16 → multiplication mechanism 17,18,19,21 → leading screw made in Great Britain (pitch 2.54mm).Because fixedly end face dental inlay engagement of this moment gear 2 16 and clutch 2 14, without relative motion, belong to one to one transmission, so the driving-chain gearratio is that outside cone pulley ratio * 27/27 * 22/17 * 17/ cone pulley number of teeth * the multiplication mechanism multiplication is than * 2.54, variation cone pulley and multiplication mechanism double than the feeding driving-chain made in Great Britain take inch as unit that just can obtain changing.
Equally, in this transmission, gear 1 adheres to different splined shafts separately from cone pulley 13, at clutch one 10 inner hole outer circularities bearing is installed all, namely can realize the rotation of self, and the splined shaft 1 of the same axis of getting along can rotate mutually with its realization, and can play the effect of supporting splined shaft 1.
Be positioned at gear 4 24 on the shift fork 28, idle wheel 27 belongs to normal engagement, comes mobile shift fork by mobile gear change hand lever, thereby realize speed change from different cone gear engagement.
Claims (8)
1. one kind is applied to the fast feed change unit of conversion of junior machine metric and English, comprises operating mechanism, linkage, transmission mechanism (containing cylindrical and end face transmission), slipping mechanism, supporting mechanism, detent mechanism.
2. it is characterized in that: operating mechanism is provided with handle and handle set, gear change hand lever, shift fork, is used for control link mechanism and gear graduation, and makes its slippage on slipping mechanism; Linkage is provided with rotating shaft, fork, connecting rod, guarantees the interlock of transmission mechanism; Transmission mechanism is provided with cylindrical gear drive and the transmission of end face dental inlay, guarantees all can mesh at diverse location; Slipping mechanism has adopted the spline guiding to guarantee the gear slippage, realizes yard and meter turn; Supporting mechanism is provided with bearing and power transmission shaft, has realized that the transmission mechanism on same axis keeps different rotating speeds; Detent mechanism is provided with steel ball location, taper hole location, the location of realizing operating mechanism.
3. the quick feed change unit of conversion of junior machine metric and English according to claim 2, it is characterized in that: described operating mechanism is provided with handle and handle set, gear change hand lever, shift fork, handle set links to each other with the rotating shaft of linkage, gear change hand lever is fixed on the shift fork, and drives when needed shift fork and move.
4. the fast feed change unit of conversion of junior machine metric and English that is applied to according to claim 2, it is characterized in that: described linkage is provided with draw-in groove, draw-in groove blocks gear and carries out move left and right, and two gears are realized interlock, and then realizes the function of an engagement, another disengaging.
5. the fast feed change unit of conversion of junior machine metric and English that is applied to according to claim 2, it is characterized in that: described transmission mechanism is divided into gear and dental inlay, realizes respectively cylindrical transmission and end face transmission.
6. the fast feed change unit of conversion of junior machine metric and English that is applied to according to claim 2 is characterized in that: slipping mechanism employing spline structure.
7. the fast feed change unit of conversion of junior machine metric and English that is applied to according to claim 2, it is characterized in that: supporting mechanism supports mutually by the bearing that is embedded in gear Inner hole, realizes the different rotation directions of same axis, different rotating speeds.
8. the fast feed change unit of conversion of junior machine metric and English that is applied to according to claim 2, it is characterized in that: detent mechanism is provided with taper hole and steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381795.6A CN102873576B (en) | 2012-10-10 | 2012-10-10 | Feed change unit for fast metric/English conversion of small machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381795.6A CN102873576B (en) | 2012-10-10 | 2012-10-10 | Feed change unit for fast metric/English conversion of small machine tool |
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| Publication Number | Publication Date |
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| CN102873576A true CN102873576A (en) | 2013-01-16 |
| CN102873576B CN102873576B (en) | 2015-06-03 |
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| CN201210381795.6A Active CN102873576B (en) | 2012-10-10 | 2012-10-10 | Feed change unit for fast metric/English conversion of small machine tool |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210477U (en) * | 1987-08-24 | 1988-03-16 | 国营二四五厂 | Self-control machine for boring brake drum |
| CN2082657U (en) * | 1990-06-22 | 1991-08-14 | 山东临沂机床厂 | Multifunctional tool machine feeding box |
| JPH09196139A (en) * | 1996-01-24 | 1997-07-29 | Murata Mach Ltd | Drive transmission device of feed device |
| CN201161348Y (en) * | 2007-08-24 | 2008-12-10 | 扬州力创机床有限公司 | Feed box structure of general accuracy machine tool |
| CN201552460U (en) * | 2009-11-04 | 2010-08-18 | 山东鲁南华源数控股份有限公司 | Variable feeding mechanism |
-
2012
- 2012-10-10 CN CN201210381795.6A patent/CN102873576B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210477U (en) * | 1987-08-24 | 1988-03-16 | 国营二四五厂 | Self-control machine for boring brake drum |
| CN2082657U (en) * | 1990-06-22 | 1991-08-14 | 山东临沂机床厂 | Multifunctional tool machine feeding box |
| JPH09196139A (en) * | 1996-01-24 | 1997-07-29 | Murata Mach Ltd | Drive transmission device of feed device |
| CN201161348Y (en) * | 2007-08-24 | 2008-12-10 | 扬州力创机床有限公司 | Feed box structure of general accuracy machine tool |
| CN201552460U (en) * | 2009-11-04 | 2010-08-18 | 山东鲁南华源数控股份有限公司 | Variable feeding mechanism |
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| Publication number | Publication date |
|---|---|
| CN102873576B (en) | 2015-06-03 |
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