CN101850434A - X-shaft transmission case of numerical control floor type boring and milling machine - Google Patents
X-shaft transmission case of numerical control floor type boring and milling machine Download PDFInfo
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- CN101850434A CN101850434A CN200910058793A CN200910058793A CN101850434A CN 101850434 A CN101850434 A CN 101850434A CN 200910058793 A CN200910058793 A CN 200910058793A CN 200910058793 A CN200910058793 A CN 200910058793A CN 101850434 A CN101850434 A CN 101850434A
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Abstract
The invention discloses an X-shaft transmission case of a numerical control floor type boring and milling machine. The transmission case comprises a ball screw nut transmission pair, an intermediate transmission pair and a gear box, wherein the ball screw nut transmission pair comprises a ball screw and is externally sleeved with a nut sleeve; one end of a ball screw nut is pressed tightly by an axial limiter; a double-tooth anti-backlash gear is arranged at one end of the nut sleeve; an end face ball bearing and a needle roller bearing which are screwed by a first nut are arranged in the middle of the nut sleeve; a radial ball bearing and a bearing cover are arranged at the other end of the nut sleeve; and all the end face ball bearing, the needle roller bearing and the radial ball bearing are born on the gear box. In the transmission case, all parts can be directly arranged in the transmission case outside the box, and are finally assembled, only by simply putting the whole transmission case into a window of a sliding seat of the boring and milling machine, assembling the ball screw nut pair and screwing the ball screw nut pair by using a bolt, so that the assembly is very convenient.
Description
Technical field
The present invention relates to numerical control Metal Cutting Machine Tool technical field, exactly relate to a kind of X-axis transmission case of digital-control boring-milling machine.
Background technology
At present, the ball screw nut transmission is the main driving type of Digit Control Machine Tool, but also is not applied to the numerical control floor type boring and milling machine directions X.The numerical control floor type boring and milling machine directions X uses the pinion and rack transmission in the past, though it is suitable for the situation of heavy load, at the bottom of complex structure, cost height, the standardization level, the production cycle is long, be unfavorable for that precision further improves.After the transmission employing ball screw nut mechanism of numerical control floor type boring and milling machine at directions X, its transmission case structural design is again a key issue.Because the ball screw nut transmission of numerical control floor type boring and milling machine directions X is that screw mandrel maintains static, nut rotates.Nut must be connected with slide, because the locus is low and limited, and the slide area is very big, if nut seat is directly placed under the lathe slide, very difficulty, assembling of slide hole processing, adjust very inconvenient.
Publication number is CN101382192, the Chinese patent literature that open day is on March 11st, 2009 discloses a kind of gap eliminating transmission case, its technical scheme that adopts is: first helical gear that connects dextrorotation at the middle part of first take-off (propeller) shaft, second take-off (propeller) shaft middle part connects the second left-handed helical gear, the 6th helical gear is installed on the gearing shaft, the 4th helical gear, the 5th helical gear is connected on the 4th helical gear, motor and planetary reduction box are installed on the casing, motor output shaft is connected with the 3rd helical gear, the 3rd helical gear and the 4th helical gear and the engagement of the 5th helical gear, the gear parts of helical gear power transmission shaft and the engagement of second helical gear, the 6th helical gear and the engagement of first helical gear.This transmission case layout travelling gear simple and reasonable for structure position, make gap eliminating transmission case internal structure compactness, conserve space, pass through the reasonable utilization of anti-backlash mechanism simultaneously, make gap eliminating transmission case that backlass preferably be arranged, the X-axis that is delivered to the numerical control gantry mill machining center just shows as good positioning accuracy and repetitive positioning accuracy, has ensured the machining accuracy of numerical control gantry mill machining center.But the problem of the slide hole processing difficulties that this technical scheme does not solve among the present invention to be proposed, assembling, adjustment inconvenience; Because its volume is bigger, be not suitable for numerical control floor type boring and milling machine slide below yet.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of X-shaft transmission case of numerical control floor type boring and milling machine simple in structure, easy to manufacture, easy to adjust, the present invention can directly be installed on each part in the transmission case outside machine, when general assembly, only whole transmission case need be put into simply the window of boring and milling machine slide, load onto ballscrew nut fitting and also get final product, assemble very convenient with screw is fastening.
The present invention is achieved through the following technical solutions:
A kind of X-shaft transmission case of numerical control floor type boring and milling machine, comprise the ball screw nut transmission, middle transmission and tooth case, it is characterized in that: described ball screw nut transmission comprises ball screw, be provided with nut sleeve outward, one end of described ball screw nut compresses through axial limiter, one end of described nut sleeve is equipped with the bidentate clearance elimination gear, the centre of nut sleeve is equipped with through first nut and tight end face ball bearing and needle bearing, the other end of nut sleeve is equipped with radial ball bearing, and bearing cap, described end face ball bearing be installed, needle bearing, radial ball bearing all is supported on the described tooth case.
Transmission is installed on the power transmission shaft and with described bidentate clearance elimination gear and meshes in the middle of described, and power transmission shaft is supported on the tooth case by the clutch shaft bearing and second bearing, and an end of power transmission shaft is connected with reduction gearbox output shaft by shaft coupling.
Described bidentate clearance elimination gear is made up of first gear, second gear, pin and spring, and an end of bidentate clearance elimination gear is through second nut and tight.
Described tooth case is a support accessory, is connected with numerical control floor boring machine slide with pin by screw.
Described power transmission shaft and reduction gearbox output shaft rotate together, drive middle transmission rotation and the bidentate clearance elimination gear is rotated, and rotate on one side the bidentate clearance elimination gear drives ball screw nut through key conduction power by nut sleeve, and an edge directions X moves.
Advantage of the present invention shows:
1, be that the prior art of representative compare with the patent document that is CN101382192 with the publication number, the present invention is simple in structure, easily manufactured, transmission case is independently parts, can be before general assembly will all assemble, debug qualified, when general assembly, compress with screw and axial limiter as long as nut sleeve is contained on the nut except that the part feed screw nut's assembly.
2, be that the prior art of representative compare with the patent document that is CN101382192 with the publication number, because the ball screw nut transmission is mounted in the bottom of numerical control floor type boring and milling machine slide, the area of slide is very big, and the space is little, is designed to the monoblock type assembling, adjusts very difficulty.And the high part of present this structure precision is just tested when adorning in portion, and the place that need debug during general assembly seldom.
3, be that the prior art of representative compare with the patent document that is CN101382192 with the publication number, feed screw nut's assembly of the present invention is by the professional production manufacturer production, the standardization level height; And this transmission case is that leading screw is motionless, on one side the leading screw that nut rotates, an edge is fixing moves axially the problem such as reverse of appearance when having avoided elongated ball-screw to rotate; The clearance elimination gear transmission has been adopted in middle transmission, so transmission accuracy is very high.
Description of drawings
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is an overall structure schematic diagram of the present invention
Mark among the figure:
1, first back-up ring, 2, bearing cap, 3, nut sleeve, 4, the tooth case, 5, first nut, 6, power transmission shaft, 7, middle transmission, 8, the tooth case lid, 9, the clutch shaft bearing lid, 10, second nut, 11, first gear, 12, pin, 13, second gear, 14, first lining ring, 15, second lining ring, 17, spring, 18, ball screw, 20, clutch shaft bearing, 21, second bearing, 22, radial ball bearing, 23, needle bearing, 24, the end face ball bearing, 25, first screw, 26, first bolt, 27, first flat key, 28, second flat key, 29, second bolt, 30, pin, 31, the 3rd bolt, 32, second back-up ring, 33, second screw, 35, the 4th screw.
The specific embodiment
With reference to Figure of description 1, the invention discloses a kind of X-shaft transmission case of numerical control floor type boring and milling machine, comprise the ball screw nut transmission, middle transmission 7 and tooth case 4, described ball screw nut transmission comprises ball screw 18, be arranged with nut sleeve 3 outward, ball screw 18 is connected with nut sleeve 3 through the 3rd screw, one end of described ball screw nut compresses through axial limiter, one end of described nut sleeve 3 is equipped with the bidentate clearance elimination gear, the centre of nut sleeve 3 is equipped with through first nut 5 and tight end face ball bearing 24 and the needle bearing 23, the other end of nut sleeve 3 is equipped with radial ball bearing 22, and bearing cap 2, described end face ball bearing 24 be installed, needle bearing 23, radial ball bearing 22 all is supported on the described tooth case 4.Transmission 7 is installed on the power transmission shaft 6 and with described bidentate clearance elimination gear and meshes in the middle of described, and power transmission shaft 6 is supported on the tooth case 4 by the clutch shaft bearing 20 and second bearing 21, and an end of power transmission shaft 6 is connected with reduction gearbox output shaft by shaft coupling.Described bidentate clearance elimination gear is made up of first gear 11, second gear 13, pin 12 and spring 17, and an end of bidentate clearance elimination gear is through second nut 10 and tight.Described tooth case 4 is a support accessory, is connected with numerical control floor boring machine slide with pin 12 by screw.Described power transmission shaft 6 and reduction gearbox output shaft rotate together, drive middle transmission 7 rotations and the bidentate clearance elimination gear is rotated, and rotate on one side the bidentate clearance elimination gear drives ball screw nut through key conduction power by nut sleeve 3, and an edge directions X moves.
Claims (5)
1. X-shaft transmission case of numerical control floor type boring and milling machine, comprise the ball screw nut transmission, middle transmission (7) and tooth case (4), it is characterized in that: described ball screw nut transmission comprises ball screw (18), be arranged with nut sleeve (3) outward, one end of described ball screw (18) nut compresses through axial limiter, one end of described nut sleeve (3) is equipped with the bidentate clearance elimination gear, the centre of nut sleeve (3) is equipped with through first nut (5) and tight end face ball bearing (24) and needle bearing (23), the other end of nut sleeve (3) is equipped with radial ball bearing (22), and bearing cap (2), described end face ball bearing (24) be installed, needle bearing (23), radial ball bearing (22) all is supported on the described tooth case (4).
2. a kind of X-shaft transmission case of numerical control floor type boring and milling machine according to claim 1, it is characterized in that: described middle transmission (7) is installed on power transmission shaft (6) and upward and with described bidentate clearance elimination gear meshes, power transmission shaft (6) is supported on the tooth case (4) by clutch shaft bearing (20) and second bearing (21), and an end of power transmission shaft (6) is connected with reduction gearbox output shaft by shaft coupling.
3. a kind of X-shaft transmission case of numerical control floor type boring and milling machine according to claim 1 and 2, it is characterized in that: described bidentate clearance elimination gear is made up of first gear (11), second gear (13), pin (12) and spring (17), and an end of bidentate clearance elimination gear is through second nut (10) and tight.
4. a kind of X-shaft transmission case of numerical control floor type boring and milling machine according to claim 1 and 2 is characterized in that: described tooth case (4) is a support accessory, is connected with numerical control floor boring machine slide with pin (12) by screw.
5. a kind of X-shaft transmission case of numerical control floor type boring and milling machine according to claim 2, it is characterized in that: described power transmission shaft (6) and reduction gearbox output shaft rotate together, transmission (7) rotates and makes the rotation of bidentate clearance elimination gear in the middle of driving, the bidentate clearance elimination gear drives ball screw nut through key conduction power by nut sleeve (3) and rotates on one side, and an edge directions X moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058793A CN101850434A (en) | 2009-04-01 | 2009-04-01 | X-shaft transmission case of numerical control floor type boring and milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058793A CN101850434A (en) | 2009-04-01 | 2009-04-01 | X-shaft transmission case of numerical control floor type boring and milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101850434A true CN101850434A (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910058793A Pending CN101850434A (en) | 2009-04-01 | 2009-04-01 | X-shaft transmission case of numerical control floor type boring and milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101850434A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490066A (en) * | 2011-11-11 | 2012-06-13 | 上海三一精机有限公司 | Nut rotation type screw nut transmission device and boring-milling machine |
| CN104528602A (en) * | 2014-12-30 | 2015-04-22 | 江苏华澳橡胶机械有限公司 | Lifting device |
| CN108443689A (en) * | 2018-05-08 | 2018-08-24 | 郑州天点科技有限公司 | A kind of novel projector flap seat |
-
2009
- 2009-04-01 CN CN200910058793A patent/CN101850434A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490066A (en) * | 2011-11-11 | 2012-06-13 | 上海三一精机有限公司 | Nut rotation type screw nut transmission device and boring-milling machine |
| CN104528602A (en) * | 2014-12-30 | 2015-04-22 | 江苏华澳橡胶机械有限公司 | Lifting device |
| CN108443689A (en) * | 2018-05-08 | 2018-08-24 | 郑州天点科技有限公司 | A kind of novel projector flap seat |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101006 |