CN201505831U - Turnover driving device of vertical exchange workbench - Google Patents
Turnover driving device of vertical exchange workbench Download PDFInfo
- Publication number
- CN201505831U CN201505831U CN2009202037128U CN200920203712U CN201505831U CN 201505831 U CN201505831 U CN 201505831U CN 2009202037128 U CN2009202037128 U CN 2009202037128U CN 200920203712 U CN200920203712 U CN 200920203712U CN 201505831 U CN201505831 U CN 201505831U
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- leading screw
- turnover
- revolute pair
- screw
- horizontal
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Abstract
The utility model relates to a turnover driving device of a vertical exchange workbench, which is used for a horizontal five-axis CNC machining center and is characterized in that a turnover structure is a four-link structure and consists of three revolute pairs and a moving pair, wherein in the first revolute pair, a fixed end of a screw along with a bearing seat rotates around a central shaft; in the second revolute pair, a turnover table is driven by the screw to rotate around self-fixed rotation shaft; and in the third revolute pair, a nut seat arranged at the other end of the turnover table transmits; and a motor drives the screw to transmit, the screw is stressed to form a two-force bar, a nut drives a slide block to translate along the direction of the screw, and simultaneously, the slide block is connected with the second revolute pair to realize the positioning of the turnover workbench via servo control, so vertical-horizontal conversion and accurate turnover positioning are realized. The vertical-horizontal double exchange workbench of a high-speed horizontal machining center provides turnover power for realizing accurate positioning.
Description
Technical field
This novel mechanical production devices that relates to, overturning drive device on the vertical exchange working platform in the lathe.
Background technology
Extensively adopt advanced overall construction design technology in present generation aircraft design, the aviation integral structure component has that size is big, wall thin, yielding, process characteristics such as the machining difficulty is very big, element precision height.Because the requirement of workpiece amount of deflection and aspects such as thermal stress effect and chip removal, at a high speed, the horizontal main processing mode that is processed into for aerospace component processing at present.Along with the fast development of Chinese airplane industry, the demand of high speed, horizontal Machining centers that adapts to integral structure component processing is increasing, becomes a spotlight of present equipment manufacture.
The high-speed horizontal machining center is equipped with vertical exchange working platform, can increase work efficiency greatly, reduces non-cutting time, can strengthen the rigidity of lathe host machine part simultaneously.This double change-table has the upright translation function that crouches, and when clamping workpiece, workbench is in horizontal state; When exchange, workbench is in vertical state, and this mode is very beneficial for the clamping of workpiece, thereby has further reduced non-cutting time, raises the efficiency.Yet at present in vertical exchange working platform, overturning drive device directly influences the exchange of workbench to the upset positioning accuracy of workbench not enough.
Summary of the invention
This novel purpose provides a kind of vertical exchange working platform overturning drive device, can realize the accurately upset power of location for upright, the double change-table that crouches of high-speed horizontal machining center provides.
Vertical exchange working platform overturning drive device, be used for horizontal five-shaft numerical control machining center, it is characterized in that overturn structure is a four-bar linkage structure: form by three revolute pairs and a moving sets, first revolute pair be the leading screw stiff end together with bearing block around central shaft rotate, second revolute pair be under the driving of roll-over table at leading screw around self fixing turning cylinder rotate, the 3rd revolute pair is the nut seat transmission that is placed in the roll-over table other end; The driven by motor lead screw transmission, leading screw is subjected to pressure, forms two power bars, and screw drives nut axis along the leading screw direction translational, thereby promotes the upset working platform overturning; By SERVO CONTROL, can realize the accurate location of workbench of overturning, thereby realize upright conversion and the upset location of crouching.
The design's exchange working platform overturning drive device can be good at realizing upright, the translation function that crouches of workbench, guarantees conversion accuracy, promotes operating efficiency.
Description of drawings
Accompanying drawing 1 is that vertical exchange working platform overturning drive device is at the switch structure diagram;
Accompanying drawing 2 is that vertical exchange working platform overturning drive device is at the clamping position structure diagram;
Accompanying drawing 3 is vertical exchange working platform overturning drive device cutaway views;
The specific embodiment
Accompanying drawings the design's connecting relation: vertical exchange working platform drives turning device, is used for horizontal five-shaft numerical control machining center, it is characterized in that this device is a four-bar linkage structure, is made up of three revolute pairs and a moving sets.Three revolute pairs are: 1, first revolute pair is to be connected with bearing block 7 with bearing group at leading screw 4 one ends, and bearing block 7 is placed on the support 8, and support 8 is pressed Fig. 3 by bearing 10 and central shaft 9, motor and speed reducer 11 and installed; 2, second revolute pair is to combine with turning cylinder 3 on being fixed on base 1 at roll-over table 2 one ends, and roll-over table 2 other ends are by deep groove ball bearing connecting filament female seat 12, and nut seat 12 is coaxial with nut axis 6, and perpendicular to leading screw 4; Rotary middle spindle 9 and plant bottom case 1 that moving sets is leading screw 4 stiff ends are fixed together, and leading screw 4 other ends are settled nut axis 6.
Job state: vertical exchange working platform overturning drive device, be used for horizontal five-shaft numerical control machining center, it is characterized in that overturn structure is a four-bar linkage structure: form by three revolute pairs and a moving sets, first revolute pair be leading screw 4 stiff ends together with bearing block 7 around central shaft 9 rotate, second revolute pair is that roll-over table 2 rotates under the driving of leading screw 4 that moving axis 3 rotates, the 3rd revolute pair is the nut seat transmission; Leading screw 4 is that an end is fixed an end and freely installed, and stiff end links to each other with the servomotor seat by the reductor turning cylinder, and constitutes revolute pair: the driven by motor lead screw transmission, overturn thereby promote roll-over table; By SERVO CONTROL, can realize the accurate location of workbench of overturning, thereby realize upright conversion and the upset location of crouching.
The first revolute pair support 8 rotates around central shaft 9, rotate under the driving of leading screw 4 moving axis 3 of the second revolute pair roll-over table 2 rotates, can realize that 90 degree crouch, upright state conversion, the 3rd revolute pair roll-over table 2 front end nut seats 12 rotate around nut seat by bearing 5 with the nut seat 6 that leading screw 4 ends are settled.Motor and speed reducer 11 drives leading screw 4, thereby promoting screw 12 upwards makes kinematic axis 3 rotate along leading screw 4, leading screw 4 rotates around rotating central shaft 9 together with mechanisms such as bearings 7 simultaneously, roll-over table 2 moving axis 3 that rotates under the driving of leading screw 4 is made flip-flop movement, thereby realize the upright conversion of crouching, Fig. 2 and Fig. 1 are two horizontal and vertical states.In entire work process, it is axial direction along leading screw self that screw is given the power of leading screw, only is subjected to axial force, and leading screw is two power bars, thereby has guaranteed rigidity.Circle grating chi 13 has been realized closed-loop control, makes the upright accurate transformation that crouches.
Because the upset workbench also will be realized vertical function of exchange, so require switching mechanism must realize accurate location, the present invention adopts the accurate location of the method realization lead screw shaft that adds round grating.The stiff end of leading screw adopts angular contact ball bearing to fix, and the other end is decontroled, because leading screw is in compressive state all the time in switching process, this leading screw fixed form can satisfy the demands fully.
In order to obtain bigger moment of torsion and conserve space, the mode that the present invention adopts motor via reducer to drive realizes the driving of leading screw.Fixing leading screw protector on the bearing block of stiff end, thus realize the protection of leading screw.Nut seat links to each other by deep groove ball bearing with the upset workbench, thereby has realized fast moving.
Claims (1)
1. vertical exchange working platform overturning drive device, be used for horizontal five-shaft numerical control machining center, it is characterized in that adopting four-bar linkage structure, be made up of with a moving sets three revolute pairs: 1, first revolute pair is to be connected with bearing block (7) with bearing group at leading screw (4) one ends, bearing block (7) is placed on the support (8), support (8) is installed by bearing (10) and central shaft (9), motor and speed reducer (11) concentric, and circle grating chi (13) is co-axially mounted on bearing block (7) top with leading screw (4); Two, second revolute pair is to combine with turning cylinder (3) on being fixed on base (1) at roll-over table (2) one ends, and roll-over table (2) other end is by deep groove ball bearing connecting wire female seat (12), and nut seat (12) is coaxial with nut axis (6); Three, the 3rd revolute pair is that nut axis (6) on the leading screw (4) is coaxial with nut seat (12) by bearing (5), and perpendicular to leading screw (4); Moving sets is that the rotary middle spindle (9) by leading screw (4) stiff end is fixed together with plant bottom case (1), and leading screw (4) other end is settled nut axis (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202037128U CN201505831U (en) | 2009-09-29 | 2009-09-29 | Turnover driving device of vertical exchange workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202037128U CN201505831U (en) | 2009-09-29 | 2009-09-29 | Turnover driving device of vertical exchange workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201505831U true CN201505831U (en) | 2010-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202037128U Expired - Fee Related CN201505831U (en) | 2009-09-29 | 2009-09-29 | Turnover driving device of vertical exchange workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201505831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476215A (en) * | 2014-12-18 | 2015-04-01 | 济南二机床集团有限公司 | Turning plate horizontal processing center |
| CN104493506A (en) * | 2014-12-18 | 2015-04-08 | 济南二机床集团有限公司 | Turning plate type workbench of machine tool |
| CN110039331A (en) * | 2019-04-08 | 2019-07-23 | 科德数控股份有限公司 | A kind of pallet changer with standing function |
-
2009
- 2009-09-29 CN CN2009202037128U patent/CN201505831U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476215A (en) * | 2014-12-18 | 2015-04-01 | 济南二机床集团有限公司 | Turning plate horizontal processing center |
| CN104493506A (en) * | 2014-12-18 | 2015-04-08 | 济南二机床集团有限公司 | Turning plate type workbench of machine tool |
| CN110039331A (en) * | 2019-04-08 | 2019-07-23 | 科德数控股份有限公司 | A kind of pallet changer with standing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20120929 |