CN203557197U - Device for balancing gravity center of spindle box of boring and milling machine - Google Patents
Device for balancing gravity center of spindle box of boring and milling machine Download PDFInfo
- Publication number
- CN203557197U CN203557197U CN201320710308.6U CN201320710308U CN203557197U CN 203557197 U CN203557197 U CN 203557197U CN 201320710308 U CN201320710308 U CN 201320710308U CN 203557197 U CN203557197 U CN 203557197U
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- spindle box
- boring
- chain
- main spindle
- milling machine
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Abstract
The utility model discloses a device for balancing the gravity center of a spindle box of a boring and milling machine, and relates to the technical field of machine tool manufacturing. The device comprises the spindle box and a column, wherein the spindle box is provided with a front balancing chain and a rear balancing chain; one end of the front balancing chain is connected with a piston rod of a balancing and compensating cylinder arranged in the spindle box, and the other end of the front balancing chain is connected with a balancing counterweight block arranged in the column through a front balancing chain pulley; and one end of the rear balancing chain is connected with the spindle box, and the other end of the rear balancing chain is connected with the balancing counterweight block. According to the device for balancing the gravity center of the spindle box of the boring and milling machine, the problem that the machining accuracy is reduced when the extending position of a ram of a floor type boring and milling machine is farther from the spindle box in the prior art can be solved.
Description
Technical field
The utility model relates to technology of Machine Tool field, especially a kind of device of balance boring and milling machine main spindle box center of gravity.
Background technology
Traditional numerical control floor type boring and milling machine is in process, when the positional distance main spindle box that stretches out when ram is far away, because main shaft is cantilever design, now main shaft rigidity can variation, cause whole main spindle box center of gravity to change, cause numerical control floor type boring and milling machine machining accuracy to reduce.
Utility model content
The purpose of this utility model is to provide a kind of boring and milling machine main spindle box gravity balance device, and it can solve in prior art the problem that when floor-type milling & boring machine ram extended position is far away apart from main spindle box, machining accuracy reduces.
In order to address the above problem, the technical solution adopted in the utility model is: this boring and milling machine main spindle box gravity balance device, comprise main spindle box, column, described main spindle box is provided with forward horizontal stand chain and back balance chain, described forward horizontal stand chain one end is connected with the piston rod of balanced compensated oil cylinder in being located at described main spindle box, and its other end is connected with the equilibrate counterweight in being located at described column by forward horizontal stand chain pulley; One end of described back balance chain is connected with described main spindle box, and the other end is connected with described equilibrate counterweight by back balance chain pulley.
According to above technical scheme, further scheme is: described forward horizontal stand chain pulley and described back balance chain pulley all have two groups, are located at respectively the top of described column.
Further scheme is: described balancing cylinder is connected with the electrohydraulic proportional control valve in being located at boring and milling machine hydraulic system.
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:
When 1, floor-type milling & boring machine main spindle box gravity balance device can solve floor-type milling & boring machine high-rate cutting workpiece, the center of gravity of main spindle box, because ram stretches out movement, changes the center of gravity of main spindle box.
2, floor-type milling & boring machine main spindle box gravity balance apparatus structure is simple, convenient, practical.
3, main spindle box stretching motion linearity is better, and whole system rigidity is better.
4, can improve the machining accuracy of floor-type milling & boring machine.
5, floor-type milling & boring machine can keep good precision, extends its service life.
Accompanying drawing explanation
Fig. 1 is boring and milling machine main spindle box gravity balance device schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described: boring and milling machine main spindle box gravity balance device as shown in Figure 1, comprise main spindle box 1 and column 7, main spindle box is provided with perpendicular to the forward horizontal stand chain 8 of column 7 and back balance chain 2, one end of forward horizontal stand chain 8 is connected with the piston rod of balanced compensated oil cylinder 6 in being located at main spindle box 1, and its other end is connected with the equilibrate counterweight 5 in being located at column 7 by forward horizontal stand chain pulley 4; One end of back balance chain 2 is connected with main spindle box 1, and the other end is connected with equilibrate counterweight 5 by back balance chain pulley 3.
Forward horizontal stand chain pulley 4 and back balance chain pulley 3 all have two groups, are located at respectively the top of column 7.
Implement after this boring and milling machine main spindle box gravity balance device, the pressure of balanced compensated cylinder body 6 is controlled by electro-hydraulic proportional valve, the variation of the pressure by balanced compensated cylinder body 6 makes the pulling force of forward horizontal stand chain 8 and back balance chain 2 produce corresponding variation, pulling force between forward horizontal stand chain 8 and back balance chain 2 and main carrying chain distributes to be adjusted by equilibrate counterweight 5, and the former poised state of main spindle box 1 is maintained.
Claims (3)
1. a boring and milling machine main spindle box gravity balance device, comprise main spindle box, column, it is characterized in that: described main spindle box is provided with forward horizontal stand chain and back balance chain, described forward horizontal stand chain one end is connected with the piston rod of balanced compensated oil cylinder in being located at described main spindle box, and its other end is connected with the equilibrate counterweight in being located at described column by forward horizontal stand chain pulley; One end of described back balance chain is connected with described main spindle box, and the other end is connected with described equilibrate counterweight by back balance chain pulley.
2. boring and milling machine main spindle box gravity balance device according to claim 1, is characterized in that: described forward horizontal stand chain pulley and described back balance chain pulley all have two groups, are located at respectively the top of described column.
3. boring and milling machine main spindle box gravity balance device according to claim 1, is characterized in that: described balancing cylinder is connected with the electrohydraulic proportional control valve in being located at boring and milling machine hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710308.6U CN203557197U (en) | 2013-11-12 | 2013-11-12 | Device for balancing gravity center of spindle box of boring and milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710308.6U CN203557197U (en) | 2013-11-12 | 2013-11-12 | Device for balancing gravity center of spindle box of boring and milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203557197U true CN203557197U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320710308.6U Expired - Fee Related CN203557197U (en) | 2013-11-12 | 2013-11-12 | Device for balancing gravity center of spindle box of boring and milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203557197U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325351A (en) * | 2013-11-12 | 2015-02-04 | 柳州正菱重型数控机床有限公司 | Spindle box gravity center balancing device of boring-milling machine |
| CN107127631A (en) * | 2017-04-26 | 2017-09-05 | 广西大学 | A kind of balanced compensated mechanism applied to milling-boring machine main spindle box displacement of center of gravity |
| CN108705105A (en) * | 2018-05-30 | 2018-10-26 | 北京理工大学 | A kind of vertical spindle processing unit (plant) |
-
2013
- 2013-11-12 CN CN201320710308.6U patent/CN203557197U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325351A (en) * | 2013-11-12 | 2015-02-04 | 柳州正菱重型数控机床有限公司 | Spindle box gravity center balancing device of boring-milling machine |
| CN107127631A (en) * | 2017-04-26 | 2017-09-05 | 广西大学 | A kind of balanced compensated mechanism applied to milling-boring machine main spindle box displacement of center of gravity |
| CN108705105A (en) * | 2018-05-30 | 2018-10-26 | 北京理工大学 | A kind of vertical spindle processing unit (plant) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20151112 |