CN205085427U - Little stroke of single coordinate feeds headstock - Google Patents
Little stroke of single coordinate feeds headstock Download PDFInfo
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- CN205085427U CN205085427U CN201520740282.9U CN201520740282U CN205085427U CN 205085427 U CN205085427 U CN 205085427U CN 201520740282 U CN201520740282 U CN 201520740282U CN 205085427 U CN205085427 U CN 205085427U
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- belt
- adjusting sleeve
- eccentric adjusting
- main shaft
- eccentric sleeve
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Abstract
The utility model discloses a little stroke of single coordinate feeds headstock, including rack -mounted power box, power box internally mounted eccentric sleeve, the interior installation main shaft of eccentric sleeve, big band pulley is connected to main shaft one end, and big band pulley passes through the belt and connects power supply acquisition power, eccentric sleeve installs power rotary driving mechanism outward, and power rotary driving mechanism connects the eccentric sleeve outer wall, and the drive eccentric sleeve rotate, flexible straining device is still being installed on the belt side, this flexibility straining device contacts for the tensioning belt with the belt, this kind of little stroke of single coordinate feeds headstock, adopt the eccentric sleeve principle, through the rotatory scheme that drives main shaft (or workstation) removal of drive eccentric sleeve, realized that the main shaft becomes along the micro - pivoted function of a direction at the rectilinear movement of a coordinate direction, because of using monocycle big velocity ratio transmission of festival to combine the segmentation to rectify, thereby in great reinforcing great when having reduced mechanical structure mechanism's rigidity and at an ascending movement accuracy in side.
Description
Technical field
The utility model is used for axis feeding or the movable workbench of stock-removing machine (as Machine for Milling), realizes the adjustment of little stroke and high precision relative position, specifically a kind of single coordinate little stroke feeding power case.
Background technology
The design of tradition boring and milling machine, is mostly adopted lead screw guide rails pair, rack-and-pinion guideway structure, is realized the relative feed movement of main shaft and workpiece by mobile headstock parts or workbench.Use this class formation, because will drive headstock assembly or workbench, and headstock on heavy duty machine tools, workpiece workbench are huge, make driving power and dimensions of mechanical structures larger; Because large by control piece movement inertia, it is more difficult that realization fast, high accuracy controls, and equipment on-line arranges that applicability is poor.
Along with the development of production technology, lathe is proposed to the requirement of little space, high accuracy, high rhythm of production, special production line needs can the special purpose machine tool of on-line automatic production; The special production line at oil well casing line, multiple tube production line etc., long part end being processed to (bore hole, milling), requires layout on-line, automated exchanged cutter, fast pace, heavy duty is cut, mass production, also very high to the reliability requirement of equipment.As used traditional boring and milling machine, have equipment huge, can not on-line Fullly produce, the shortcoming such as rhythm of production is slow, equipment dependability is low.
Utility model content
The purpose of this utility model is for shortcoming described above, and a kind of novel single coordinate headstock (workbench) of design, while realizing high accuracy, small size, low power consumption, adapts to the requirement that heavy duty is cut.
For this reason, the utility model provides a kind of single coordinate little stroke feeding power case, comprise rack-mounted power box, power box inside is provided with eccentric adjusting sleeve by bearing, by bearing, main shaft is installed in eccentric adjusting sleeve, main shaft one end connects large belt wheel, and large belt wheel connects mair motor by belt and obtains power; Be installed with dynamic rotation driving mechanism outside described eccentric adjusting sleeve, this dynamic rotation driving mechanism connects eccentric adjusting sleeve outer wall, drives eccentric adjusting sleeve to rotate; Described belt is other is also installed with flexible tension mechanism, and this flexible tension mechanism and belt contacts are in order to tightening belt.
Described dynamic rotation driving mechanism comprises the transmission turbine that to engage with eccentric adjusting sleeve outer wall and transmit power and coordinates with transmission turbine the geared worm installed, and geared worm is arranged perpendicular to the axial direction of eccentric adjusting sleeve.
Described dynamic rotation driving mechanism also can be gear pair mechanism or feed screw nut vice mechanism.
Described flexible tension mechanism comprises conflicts and the regulating wheel acted on belt, and regulating wheel linking springs extensible member, the telescopic spring part other end is fixed in frame.
Described belt is V-belt or tooth form synchronous belt.
The beneficial effects of the utility model:
1, compact conformation, size are little:
Because be achieve main shaft or operating position adjustment in headstock inside, need not move integrally workbench or headstock, dimensions of mechanical structures is very little.
2, straightening line sliding pair is revolute, equipment good rigidly:
Because be achieve main spindle's adjustment in headstock inside, there is no outside moving sets, equipment good rigidly, for heavy duty, precision cutting create favorable conditions.
3, driving power is little, and response is fast, and control accuracy is high:
Workbench or headstock need not be moved integrally, driving power is little, electrical response is fast, control accuracy is high, can micron accuracies be reached in conjunction with correction link.
4, the position control of complicated track, curved surface can be realized:
As used servocontrolled axis, the principles such as interpolation are adopted to realize the position control requirement of Complex curve and surface.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further details.
Fig. 1 is that figure is shown in structural representation of the present utility model.
Fig. 2 is that eccentric adjusting sleeve operation principle sketch is looked on a left side.
Description of reference numerals: 1, power box; 2, eccentric adjusting sleeve; 3, main shaft; 4, large belt wheel; 5, belt; 6, power source; 7, flexible tension mechanism; 8, transmission turbine; 9, geared worm.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of single coordinate little stroke feeding power case, see figures.1.and.2, comprise rack-mounted power box 1, power box 1 inside is provided with eccentric adjusting sleeve 2 by bearing, by bearing, main shaft 3 is installed in eccentric adjusting sleeve 2, main shaft 3 one end connects large belt wheel 4, and it can be motor that large belt wheel 4 connects power source 6(power source herein by belt 5, also or hydraulic jack etc. the equipment of power can be provided) obtain power; Be installed with dynamic rotation driving mechanism outside described eccentric adjusting sleeve 2, this dynamic rotation driving mechanism connects eccentric adjusting sleeve 2 outer wall, drives eccentric adjusting sleeve 2 to rotate; Described belt 5 is other is also installed with flexible tension mechanism 7, and this flexible tension mechanism 7 contacts in order to tightening belt 5 with belt 5.
In the present embodiment, in employing, hold formula eccentric adjusting sleeve structure, main shaft 3 action under power source 6, belt 5 and large belt wheel 4 act on that eccentric adjusting sleeve 2 inside is installed.Due to the existence of dynamic rotation driving mechanism, under its effect, eccentric adjusting sleeve 2 can produce rotary motion, because in eccentric adjusting sleeve 2, main shaft 3 is in the reason of eccentric position, in eccentric adjusting sleeve 2 rotary course, main shaft 3 can produce a circular movement locus, can produce an additional displacement in the horizontal direction when the change in location of main shaft 3, and movable workbench pair carries out corresponding compensation to it.Thus the track of main shaft 3 can reach the comprehensive covering in certain limit, achieves and to realize any adjustment of main shaft 3 within the scope of certain diameter and feeding when frame is fixed, reach the effect of the heavy duty processing of gadget size.
In addition, also can give eccentric adjusting sleeve 2 setting position feedback, then carry out independent position according to technological requirement and fix or track programming, realize automation trail change.
This structure of the present embodiment can adjust thus realize walking out setting track in working angles, can be locked (can additional retaining mechanism when special heavy duty is cut) when bore hole by servomotor to main spindle's.Because the position of main spindle's opposite case changes, make the centre-to-centre spacing of odontoid belt pair produce respective change, therefore belt transmission pair is provided with flexible tension mechanism 7, protects the reliable tensioning of whole belt.
Embodiment 2:
On the basis of embodiment 1, the present embodiment is described further, see figures.1.and.2, here dynamic rotation driving mechanism comprises the transmission turbine 8 that to engage with eccentric adjusting sleeve 2 outer wall and transmit power and coordinates the geared worm 9 installed with transmission turbine 8, and geared worm 9 is arranged perpendicular to the axial direction of eccentric adjusting sleeve 2.
Geared worm 9 is driven to rotate with servomotor, due under the effect of cooperatively interacting of geared worm 9 and transmission turbine 8, geared worm 9 rotates and transmission turbine 8 is rotating perpendicular to geared worm 9 direction, and then geared worm 9 drives eccentric adjusting sleeve 2 to rotate, and realizes the rotation of eccentric adjusting sleeve 2.
Same, here dynamic rotation driving mechanism also can be gear pair mechanism or feed screw nut vice mechanism.Because these structures, its principle and worm gear structure principle all similar, do not elaborate at this.
Embodiment 3:
In the above two embodiments, because the position of the relative power box 1 in main shaft 3 position changes, the centre-to-centre spacing of belt 5 belt pair is made to produce respective change, here belt 5 is V-belt or tooth form synchronous belt, therefore belt transmission pair will be provided with flexible tension mechanism 7, protects the reliable tensioning of whole belt.In the present embodiment, as shown in Figure 2, flexible tension mechanism 7 comprises conflicts and the regulating wheel acted on belt 5, and regulating wheel linking springs extensible member, the telescopic spring part other end is fixed in frame.
In this structure, telescopic spring part is the structural member of a certain force, selects suitable spring to realize this structure function according to the tensile requirements of belt, when after the skew of main shaft 3 position, if belt tension fluffs, spring elongates, regulating wheel is close to belt, makes belt become tight; If along with the skew of main shaft 3 position, belt becomes tight, spring contraction, and regulating wheel and belt are fitted slightly slow, are now equivalent to compensate a part of belt, alleviates the tensioning of belt.In this structure, the spring extensible member other end is fixed in frame, also can be fixed on other stationary plane, as long as can meet the tensioning of adjustment belt.
In this structure of the present utility model, the frame in order to install power box 1 can be fixed, also can be installed on mobile or rotatable platform, in order to meet the technological requirements such as the movement of Complex curve and surface.
In sum, this single coordinate of the present utility model little stroke feeding power case, adopt eccentric adjusting sleeve principle, by the scheme driving eccentric adjusting sleeve to rotarily drive main shaft (or workbench) movement, achieve main shaft becomes the minor rotation along direction function in the rectilinear movement of a coordinate direction.Because using the transmission of monocycle joint large speed ratio in conjunction with segmentation correction, thus while reducing frame for movement greatly, improve the motion control accuracy in a direction.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (5)
1. single coordinate little stroke feeding power case, comprise rack-mounted power box (1), it is characterized in that: power box (1) inside is provided with eccentric adjusting sleeve (2) by bearing, by bearing, main shaft (3) is installed in eccentric adjusting sleeve (2), main shaft (3) one end connects large belt wheel (4), and large belt wheel (4) connects power source (6) by belt (5) and obtains power; Be installed with dynamic rotation driving mechanism outside described eccentric adjusting sleeve (2), this dynamic rotation driving mechanism connects eccentric adjusting sleeve (2) outer wall, drives eccentric adjusting sleeve (2) to rotate; Described belt (5) is other is also installed with flexible tension mechanism (7), and this flexible tension mechanism (7) contacts in order to tightening belt (5) with belt (5).
2. single coordinate as claimed in claim 1 little stroke feeding power case, it is characterized in that: described dynamic rotation driving mechanism comprises the transmission turbine (8) that to engage with eccentric adjusting sleeve (2) outer wall and transmit power and coordinates the geared worm (9) installed with transmission turbine (8), and geared worm (9) is arranged perpendicular to the axial direction of eccentric adjusting sleeve (2).
3. single coordinate as claimed in claim 2 little stroke feeding power case, is characterized in that: described dynamic rotation driving mechanism also can be gear pair mechanism or feed screw nut vice mechanism.
4. single coordinate as claimed in claim 1 little stroke feeding power case, it is characterized in that: described flexible tension mechanism (7) comprises and contacting and the regulating wheel acted on belt (5), regulating wheel linking springs extensible member, the telescopic spring part other end is fixed in frame.
5. single coordinate as claimed in claim 1 little stroke feeding power case, is characterized in that: described belt (5) is V-belt or tooth form synchronous belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740282.9U CN205085427U (en) | 2015-09-23 | 2015-09-23 | Little stroke of single coordinate feeds headstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740282.9U CN205085427U (en) | 2015-09-23 | 2015-09-23 | Little stroke of single coordinate feeds headstock |
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| Publication Number | Publication Date |
|---|---|
| CN205085427U true CN205085427U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520740282.9U Active CN205085427U (en) | 2015-09-23 | 2015-09-23 | Little stroke of single coordinate feeds headstock |
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| Country | Link |
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| CN (1) | CN205085427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108206A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Single-coordinate small-stroke feeding power box |
-
2015
- 2015-09-23 CN CN201520740282.9U patent/CN205085427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108206A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Single-coordinate small-stroke feeding power box |
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