CN203077002U - Long ball screw multi-group auxiliary bracket mechanism - Google Patents
Long ball screw multi-group auxiliary bracket mechanism Download PDFInfo
- Publication number
- CN203077002U CN203077002U CN 201220698838 CN201220698838U CN203077002U CN 203077002 U CN203077002 U CN 203077002U CN 201220698838 CN201220698838 CN 201220698838 CN 201220698838 U CN201220698838 U CN 201220698838U CN 203077002 U CN203077002 U CN 203077002U
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- bearing
- carriage
- auxiliary bracket
- holder
- bracket mechanism
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Abstract
The utility model relates to a long ball screw multi-group auxiliary bracket mechanism. According to the structure, a plurality of guide rail pair sliding blocks are connected on a guide rail pair sequentially in a sliding mode. Bearing bases are connected on installing plates, bearings and bearing sleeves are connected on the bearing bases through small bearing shafts, a connecting plate is connected on the bearing base between every two adjacent brackets, two ends of a short supporting lever are connected on the bearing base between every two adjacent brackets, and two ends of a long supporting lever are connected on the installing plates of the two brackets which are arranged on the head portion and the tail portion respectively. The long ball screw multi-group auxiliary bracket mechanism overcomes the defect that a lead screw of an existing numerical control machine tool with an over 4-meter stroke is deformed caused by the fact that the lead screw sags due to self-weight. An auxiliary supporting point is added based on an exiting two-point supporting manner, an installing span distance is reduced, the bending deformation of a ball screw is reduced to the minimum in the process of operating, a precision level of lead screw transmission is improved, excessive ball screw deformation produced when the ball screw rotates at high speed or high acceleration is avoided, and torsional rigidity of positioning transmission is guaranteed.
Description
Technical field
The utility model relates to the mechanism on the big-and-middle-sized numerical control gantry machine tool, and particularly a kind of long ball-screw is organized auxiliary bracket mechanism more.
Background technology
Before the present utility model, the drive disk assembly of existing Digit Control Machine Tool adopts the ball-screw transmission mostly, adopts motor cabinet and 2 supports of bearing block.But, for the Digit Control Machine Tool of stroke above 4 meters, because it is sagging that the leading screw deadweight causes, can cause distortion, particularly when Digit Control Machine Tool ran up, leading screw can produce very big beating, form deflection deformation, certainly will influence the transmission accuracy of leading screw, long-term use can cause tired spot corrosion, even destroys whole transmission mechanism.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned defective, develops a kind of long ball-screw and organizes auxiliary bracket mechanism more.
The technical solution of the utility model is:
A kind of long ball-screw is organized auxiliary bracket mechanism more, its major technique is characterised in that a plurality of guideway slide blocks that are slidingly connected successively on the guideway on the lathe, bearing block is connected on the installing plate, bearing and bearing holder (housing, cover) are connected on the bearing block through the little axle of bearing, connecting plate is connected on the bearing block of adjacent two carriages, the moving bar two ends of short holder are connected on the bearing block of adjacent two carriages, and the moving bar two ends of long holder are connected on the installing plate of two carriages of head and the tail.
Advantage of the present utility model and effect are in the servomechanism of lathe, utilize the optimum organization of carriage mechanism, upwards install in footpath at ball-screw, six groups of auxiliary bracket mechanisms of ball-screw, promptly in original 2 supports, increased the supplemental support point, reduced the installation span, make the flexural deformation of ball-screw drop to minimum during operation, thereby improved the precision level of lead screw transmission, producing excessive ball-screw when having avoided because of high speed or high acceleration rotation is out of shape, thereby guaranteed the torsional rigidity of location transmission, the shock loading that acts on nut seat and workpiece in addition also is able to rational control.Effectively reach stable drive, reduced noise, improved the dynamic characteristic of transmission system greatly.
Description of drawings
The local main schematic diagram of looking of Fig. 1---the utility model.
The local schematic top plan view of Fig. 2---the utility model.
Fig. 3---the utility model support roller cross-sectional schematic.
Fig. 4---the utility model bracket axle is looked schematic diagram.
Fig. 5---the utility model carriage group axle is looked schematic diagram.
Fig. 6---the utility model carriage overall structure axle is looked schematic diagram.
The moving bar schematic diagram of short holder that Fig. 7---installation support roller supports.
Fig. 8---support roller is not installed support the moving bar schematic diagram of short holder.
Each label represents that corresponding component is as follows among the figure:
Leading screw 1, guideway 2, guideway slide block 3, installing plate 4, bearing block 5, the little axle 6 of bearing, bearing holder (housing, cover) 7, bearing 8, connecting plate 9, the moving bar 10 of short holder, the little axle 11 of support roller, support roller 12, packing ring 13, spacer pin 14, the moving bar 15 of long holder, holder 16, counter-base 17, collision block 18, pair of nut 19, carriage A, carriage B, carriage C, carriage D, carriage E, carriage F.
The specific embodiment
Shown in Fig. 1,2,3,4,5,6,7,8: guideway 2 is installed on the lathe, a plurality of (getting six in this example) guideway slide block 3 is slidingly connected at respectively on the guideway 2, six installing plates 4 are separately fixed on six guideway slide blocks 3, six bearing blocks 5 are connected on six installing plates 4, and the bearing holder (housing, cover) 7 that bearing 8 will be housed is fixed on these six bearing blocks 5 by the little axle 6 of bearing; Connecting plate 9 is fixed on the diaxon bearing 5 of nearest carriage C in pair of nut 19 both sides and carriage D (as Fig. 5 or Fig. 6), two moving bars 10 of short holder, wherein on the bearing block 5 that is fixed on carriage E, the other end is applied in 5 li of the bearing blocks (not needing fixing as free end) of carriage D, moving 10 1 on the bar of the short holder of another root is fixed on the bracket axle bearing 5 of carriage B, the other end is applied in 5 li of the bearer carriers of carriage C, does not also need fixing as free end (carriage C can move freely on the moving bar 10 of short holder).And the free end (not stiff end) of these the two moving bars 10 of short holder all will be installed two carriages that the moving bar 10 of 14, two short holders of spacer pin connects and be the mode of going forward one by one before a left side, the dextrad.Moving bar 15 two ends of long holder utilize holder 16 to be separately fixed on the installing plate 4 of (the most previous) carriage A and (last) carriage F (as Fig. 5 or Fig. 6), another root also is fixed on two ends on the installing plate 4 of carriage A and carriage F with identical method, two moving bars 15 of long holder are the first from left right side, and connected mode is identical; Support roller 12, packing ring 13 are installed on the little axle 11 of support roller (as Fig. 3), the little axle 11 of support roller is fixed to again on the connecting plate 9 again.Form six groups of auxiliary bracket mechanisms.Guideway slide block 3 and carriage, installing plate 4, bearing block 5 numbers are identical; Support roller 12 and packing ring 13 are connected on the little axle 11 of support roller, the little axle of support roller 11 equidistant being fixed on the connecting plate 9; On two carriages, the other end was slidingly connected on the bearing block 5 of adjacent two carriages in the middle of moving bar 10 1 ends of short holder were fixed on, and the moving bar 10 of the short holder of another root also is, two carriages of the two connection are the mode of going forward one by one before the left and right.
Guideway 2 is installed on the lathe, a plurality of (getting six in this example) guideway slide block 3 is slidingly connected at respectively on the guideway 2, six installing plates 4 are separately fixed on six guideway slide blocks 3, six bearing blocks 5 are connected on six installing plates 4, and the bearing holder (housing, cover) 7 that bearing 8 will be housed is fixed on these six bearing blocks 5 by the little axle 6 of bearing; Connecting plate 9 is fixed on the diaxon bearing 5 of nearest carriage C in pair of nut 19 both sides and carriage D (as Fig. 5 or Fig. 6), two moving bars 10 of short holder, wherein on the bearing block 5 that is fixed on carriage E, the other end is applied in 5 li of the bearing blocks (not needing fixing as free end) of carriage D, moving 10 1 on the bar of the short holder of another root is fixed on the bracket axle bearing 5 of carriage B, the other end is applied in 5 li of the bearer carriers of carriage C, does not also need fixing as free end (carriage C can move freely on the moving bar 10 of short holder).And the free end (not stiff end) of these the two moving bars 10 of short holder all will be installed two carriages that the moving bar 10 of 14, two short holders of spacer pin connects and be the mode of going forward one by one before a left side, the dextrad.Moving bar 15 two ends of long holder utilize holder 16 to be separately fixed on the installing plate 4 of (the most previous) carriage A and (last) carriage F (as Fig. 5 or Fig. 6), another root also is fixed on two ends on the installing plate 4 of carriage A and carriage F with identical method, two moving bars 15 of long holder are the first from left right side, and connected mode is identical; Support roller 12, packing ring 13 are installed on the little axle 11 of support roller (as Fig. 3), the little axle 11 of support roller is fixed to again on the connecting plate 9 again.Form six groups of auxiliary bracket mechanisms.Guideway slide block 3 and carriage, installing plate 4, bearing block 5 numbers are identical; Support roller 12 and packing ring 13 are connected on the little axle 11 of support roller, the little axle of support roller 11 equidistant being fixed on the connecting plate 9; On two carriages, the other end was slidingly connected on the bearing block 5 of adjacent two carriages in the middle of moving bar 10 1 ends of short holder were fixed on, and the moving bar 10 of the short holder of another root also is, two carriages of the two connection are the mode of going forward one by one before the left and right.
The utility model application process is described as follows:
As seen in Figure 6, under primary condition, auxiliary bracket mechanism is actionless; When ball-screw 1 drive the collision block that is installed on the counter-base 17 18 towards left to motion, when collision block 18 touches carriage D installing plate 4, directly promoting carriage D is moved to the left, to hit again and contact carriage E and also will hit as the carriage E that continues again to move to left and contact carriage F (as Fig. 6) when moving a certain distance tail-bracket D, to promote carriage E thus and carriage F moves to left in the lump, again since carriage C and carriage D by connecting plate 9 link to each other (as Fig. 6), so carriage C also is moved to the left in the lump when carriage D is moved to the left, this moment, carriage C can be moved to the left on short drag strut 10, this moment is because the effect of spacer pin 14, and carriage C will utilize and lack drag strut 10 and also drive carriage B in the lump and be moved to the left (short rod 10 1 ends are to be fixed on the bearer carrier of carriage B).Promote carriage D, carriage E, link to each other by long drag strut 15 again with carriage A owing to carriage F when carriage F is moved to the left to certain distance by the collision block on the leading screw counter-base 17 18, carriage F also drove carriage A in the lump and moved to left this moment, stop during up to total kilometres to limit position, this moment, three groups of carriages on the screw pair left side tightly were pieced together at the leading screw high order end, and leading screw is held in the below that other three groups of carriage mechanism then are dispersed in leading screw 1 by certain distance makes its leading screw 1 not produce sagging.When carriage D, carriage E, carriage F all tightly pieced together left end at leading screw 1, moving bar 10 major parts of short holder were in vacant state, and this moment, support roller 12 just played the short effect (as Fig. 7 Fig. 8) of moving bar 10 of holding in the palm of holding; Allow carriage D on the moving bar 10 of short holder, steadily move (as Fig. 7 Fig. 8).
When leading screw principle when right is moved the same.
Six groups of auxiliary bracket mechanisms of a kind of long ball-screw, make ball-screw in transmission process, obtain the support alignment, improved the precision level of ball-screw transmission, the fixation of attaching parts before and after having given full play to, these six groups of auxiliary bracket mechanisms have possessed enough intensity, rigidity and lubricity.The optimum organization of these six groups of auxiliary bracket mechanisms has guaranteed ball-screw stability of transmission, transmission efficiency and service life.
Claims (6)
1. a long ball-screw is organized auxiliary bracket mechanism more, it is characterized in that a plurality of guideway slide blocks that on the guideway on the lathe, are slidingly connected successively, bearing block is connected on the installing plate, bearing and bearing holder (housing, cover) are connected on the bearing block through the little axle of bearing, connecting plate is connected on the bearing block of adjacent two carriages, the moving bar of short holder connects the bearing block on two carriages, and the moving bar two ends of long holder are connected on the installing plate of two carriages of head and the tail.
2. a kind of long ball-screw according to claim 1 is organized auxiliary bracket mechanism more, it is characterized in that guideway slide block and carriage, installing plate, bearing block number are identical.
3. a kind of long ball-screw according to claim 1 is organized auxiliary bracket mechanism more, it is characterized in that support roller and packing ring are connected on the little axle of support roller, equidistant being fixed on the connecting plate of the little axle of support roller.
4. a kind of long ball-screw according to claim 1 is organized auxiliary bracket mechanism more, it is characterized in that short the holder on the free end that moves bar connects spacer pin.
5. a kind of long ball-screw according to claim 1 is organized auxiliary bracket mechanism more, it is characterized in that moving bar one end of short holder is fixed on middle two carriages, the other end is slidingly connected on the bearing block of adjacent two carriages, another according to the moving bar of short holder also is, two carriages of the two connection are the mode of going forward one by one before the left and right.
6. a kind of long ball-screw according to claim 1 is organized auxiliary bracket mechanism more, it is characterized in that the moving bar of long holder has two, the first from left right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698838 CN203077002U (en) | 2012-12-12 | 2012-12-12 | Long ball screw multi-group auxiliary bracket mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698838 CN203077002U (en) | 2012-12-12 | 2012-12-12 | Long ball screw multi-group auxiliary bracket mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203077002U true CN203077002U (en) | 2013-07-24 |
Family
ID=48822877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698838 Expired - Lifetime CN203077002U (en) | 2012-12-12 | 2012-12-12 | Long ball screw multi-group auxiliary bracket mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203077002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186529A (en) * | 2017-07-14 | 2017-09-22 | 山东德隆博德尔环保装备发展有限公司 | A kind of screw bracket system |
| CN107830139A (en) * | 2017-11-27 | 2018-03-23 | 安徽戎发冲压机器人有限公司 | Leading screw antihunting lifting apparatus |
-
2012
- 2012-12-12 CN CN 201220698838 patent/CN203077002U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186529A (en) * | 2017-07-14 | 2017-09-22 | 山东德隆博德尔环保装备发展有限公司 | A kind of screw bracket system |
| CN107186529B (en) * | 2017-07-14 | 2023-05-26 | 山东德隆博德尔环保装备发展有限公司 | Screw bracket system |
| CN107830139A (en) * | 2017-11-27 | 2018-03-23 | 安徽戎发冲压机器人有限公司 | Leading screw antihunting lifting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200729 Address after: No.1, innovation Avenue, hardware technology innovation industrial park, xianchaqiao Town, Shaodong county, Shaoyang City, Hunan Province Patentee after: Hunan Ningqing Aerospace Intelligent Equipment Co.,Ltd. Address before: Jiangsu Xiangfeng road 211178 city of Nanjing province Jiangning Binjiang Development Zone No. 11 Patentee before: NANJING NINGQING CNC MACHINE TOOL MANUFACTURE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |