CN202622349U - Precision numerical control rotation workbench - Google Patents
Precision numerical control rotation workbench Download PDFInfo
- Publication number
- CN202622349U CN202622349U CN 201220266187 CN201220266187U CN202622349U CN 202622349 U CN202622349 U CN 202622349U CN 201220266187 CN201220266187 CN 201220266187 CN 201220266187 U CN201220266187 U CN 201220266187U CN 202622349 U CN202622349 U CN 202622349U
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- China
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- main shaft
- hydraulic clamping
- workbench
- clamping cylinder
- rotary table
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Abstract
The utility model relates to a precision numerical control rotation workbench, which comprises workbench bases, a workbench main shaft and main shaft core shafts which are fixedly connected with the workbench main shaft, and is characterized in that support sleeves are fixedly connected to the workbench bases; outer rings of rotary table bearings and hydraulic clamping cylinders are arranged on the support sleeves; torque motor stators are fixedly connected to the bottoms of the support sleeves; the workbench main shaft is arranged on inner rings of the rotary table bearings; torque motor rotors are connected below the main shaft core shafts; spring compacting sheets of the hydraulic clamping cylinders are arranged below the workbench main shaft; and pistons of the hydraulic clamping cylinders are assembled in grooves of the hydraulic clamping cylinders and are in contact with the spring compacting sheets of the hydraulic clamping cylinders. The precision numerical control rotation workbench has the advantages of capability of improving the ending pulsation accuracy of a table board of the workbench under the action of eccentric load impact force, high positioning accuracy, large transmission torque and simple and reliable assembly and has a self-locking function, a torque motor can run discontinuously, and energy is saved.
Description
Technical field
The utility model belongs to lathe and makes the field, particularly relates to a kind of accurate digital control rotary table.
Background technology
NC rotary table is the core component of multiple lathes such as vertical lathe, milling machine, machining center, digital control gear shaper, and the element relationship such as ability of the kinematic accuracy of NC rotary table, bearing capacity, reply impulsive force are to the production and processing ability and the efficient of whole lathe.The current application situation of NC rotary table is still undesirable.
At present, the type of drive of NC rotary table mainly is servomotor or torque motor, and servomotor is fit to high-revolving occasion, and torque motor is fit to the occasion of low-speed big, and the rotating speed that the accurate digital control rotary table generally needs is lower.
The kind of drive of NC rotary table has worm gear transmission and gear pair transmission etc.Facts have proved; Worm gear transmission and gear pair transmission can provide higher transmission accuracy and have higher transmission stability; But influenced by multiple uncertain factors such as machining, assembling and setting; Inevitably there is drive gap in the worm gear transmission process of NC rotary table, influences transmission accuracy then.
The table base of most of NC rotary tables to the supporting way of rotary main shaft be that static pressure supports, YRT three-row cylinder roller bearings or with special material as the common friction support of contact material etc.; Though it is it is better that static pressure supports support stiffness, relatively poor in offset loading force especially unbalance loading impact force action lower table table top end jumping precision; YRT three-row cylinder roller bearing positioning accuracy is constant; Has very big limitation with special material aspect running accuracy, the transmission stability as the common friction support mode of contact material.
The workbench of most of workplace is not to need to rotate continuously, but intermittently rotates according to operating mode, and under the operating mode that needs stop, needing motor to be in enabled always, otherwise can influence positioning accuracy.
The utility model content
The utility model provides the accurate digital control rotary table that a kind of positioning accuracy is high, driving torque is big, assembling is simple and reliable and have the self-locking function for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The accurate digital control rotary table; Comprise table base, workbench main shaft, with the affixed main shaft mandrel of workbench main shaft; It is characterized in that: be connected with support set on the said table base; Turntable shaft bearing outer-ring and hydraulic clamping cylinder are installed on the said support set; The affixed torque motor stator in support set bottom, said workbench main shaft is installed on the inner ring of turntable bearing, coupling torque rotor below the main shaft mandrel; The below of said workbench main shaft is equipped with hydraulic clamping cylinder spring compression sheet, and the revolution that is made up of rotary table workbench main shaft, turntable bearing inner race, workbench main shaft mandrel, torque motor rotor and hydraulic clamping cylinder spring compression sheet is whole; Constitute the fixedly integral body of rotary table by turntable shaft bearing outer-ring, support set, table base and hydraulic clamping cylinder; Be equipped with the hydraulic clamping cylinder piston in the groove of said hydraulic clamping cylinder, the hydraulic clamping cylinder piston contacts with hydraulic clamping cylinder spring compression sheet.
The utility model can also adopt following technical scheme:
Said turntable bearing is the YRT turntable bearing that has steel grid chi.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme; Promptly whole and fixing wholely realize rotatablely moving and accurate positioning function of accurate digital control panoramic table by what turntable shaft bearing outer-ring, support set, table base and hydraulic clamping cylinder constituted rotary table through the revolution that constitutes rotary table by workbench main shaft, turntable bearing inner race, workbench main shaft mandrel, torque motor rotor and hydraulic clamping cylinder spring compression sheet, and can improve unbalance loading impact force action lower table table top end and jump precision.This rotary table positioning accuracy is high, and driving torque is big, assembles simple and reliablely, has the self-locking function, makes that torque motor can discontinuous work, saves energy.
Description of drawings
The structural representation of Fig. 1 the utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Among the figure: 1, workbench main shaft; 2, turntable bearing; 3, hydraulic clamping cylinder; 4, hydraulic clamping cylinder piston; 5, hydraulic clamp oil cylinder spring compression sheet; 6, support set; 7, main shaft mandrel; 8, torque motor stator; 9, torque motor rotor; 10, table base.
The specific embodiment
For further understanding utility model content, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1 and Fig. 2, the accurate digital control rotary table, comprise table base 10, workbench main shaft 1, with the affixed main shaft mandrel 7 of workbench main shaft.Be connected with support set 6 on the said table base 1, the outer ring and the hydraulic clamping cylinder 3 of turntable bearing 2 be installed, the affixed torque motor stator 8 in support set 6 bottoms on the said support set.Said workbench main shaft 1 is installed on the inner ring of turntable bearing 2; Coupling torque rotor 9 below main shaft mandrel 7; The below of said workbench main shaft is equipped with hydraulic clamping cylinder spring compression sheet 5, and the revolution that is made up of rotary table workbench main shaft 1, turntable bearing inner race, main shaft mandrel, torque motor rotor and hydraulic clamping cylinder spring compression sheet is whole.Constitute the fixedly integral body of rotary table by turntable shaft bearing outer-ring, support set 6, table base 10 and hydraulic clamping cylinder 3.Be shaped on groove on the said hydraulic clamping cylinder 3, assembling hydraulic clamping cylinder piston 4 in its groove, the hydraulic clamping cylinder piston contacts with hydraulic clamping cylinder spring compression sheet 5.In the present embodiment, said turntable bearing 2 is preferably the YRT turntable bearing that has steel grid chi, and said hydraulic clamping cylinder 3 adopts the hydraulic clamp oil cylinder.
The operating principle of the utility model is:
At the state that does not need hydraulic clamp; Not oil-filled in the oil sac in the middle of hydraulic clamping cylinder 3 and the hydraulic clamping cylinder piston 4; During setting in motion; Torque motor gets; Torque motor rotor 9 rotates with respect to torque motor stator 8, and inner ring, the hydraulic clamping cylinder spring compression sheet 5 of the YRT turntable bearing 2 of the workbench main shaft mandrel 7 that is connected with torque motor rotor 9, workbench main shaft 1, subsidiary steel grid chi are all done identical rotatablely moving with torque motor rotor 9, and the steel grid chi of the YRT turntable bearing 2 of subsidiary steel grid chi is responsible for the feedback of signal so that realize rotatablely moving and accurate positioning function of accurate digital control rotary table.
Needing the state of hydraulic clamp; The related above-mentioned moving component of torque motor is realized accurately location; Oil circuit through hydraulic clamping cylinder 3 in the oil sac in the middle of hydraulic clamping cylinder 3 and the hydraulic clamping cylinder piston 4 is full of hydraulic oil; Make hydraulic clamping cylinder piston 4 move downward, strain takes place downwards and makes to have enough frictional force between hydraulic clamping cylinder spring compression sheet 5 and the support set 6 in the planar section of compressing hydraulic clamping cylinder spring compression sheet 5, makes that the pivotable parts of NC rotary table and standing part are static relatively; After realizing clamping function, make the torque motor outage.When the needs hydraulic clamping system unclamps the clamping function; Make torque motor get electric and have motion and enable; Make in the oil sac in the middle of hydraulic clamping cylinder 3 and the hydraulic clamping cylinder piston 4 oil circuit draining through hydraulic clamping cylinder 3; Hydraulic clamping cylinder spring compression sheet 5 is realized original state, realizes that clamping system unclamps.
Although combine accompanying drawing that the preferred embodiment of the utility model is described above; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the utility model.
Claims (2)
1. accurate digital control rotary table; Comprise table base, workbench main shaft, with the affixed main shaft mandrel of workbench main shaft; It is characterized in that: be connected with support set on the said table base; Turntable shaft bearing outer-ring and hydraulic clamping cylinder are installed on the said support set; The affixed torque motor stator in support set bottom, said workbench main shaft is installed on the inner ring of turntable bearing, coupling torque rotor below the main shaft mandrel; The below of said workbench main shaft is equipped with hydraulic clamping cylinder spring compression sheet, and the revolution that is made up of rotary table workbench main shaft, turntable bearing inner race, workbench main shaft mandrel, torque motor rotor and hydraulic clamping cylinder spring compression sheet is whole; Constitute the fixedly integral body of rotary table by turntable shaft bearing outer-ring, support set, table base and hydraulic clamping cylinder; Be equipped with the hydraulic clamping cylinder piston in the groove of said hydraulic clamping cylinder, the hydraulic clamping cylinder piston contacts with hydraulic clamping cylinder spring compression sheet.
2. accurate digital control rotary table according to claim 1 is characterized in that: said turntable bearing is the YRT turntable bearing that has steel grid chi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266187 CN202622349U (en) | 2012-06-07 | 2012-06-07 | Precision numerical control rotation workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266187 CN202622349U (en) | 2012-06-07 | 2012-06-07 | Precision numerical control rotation workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622349U true CN202622349U (en) | 2012-12-26 |
Family
ID=47375592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220266187 Expired - Fee Related CN202622349U (en) | 2012-06-07 | 2012-06-07 | Precision numerical control rotation workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622349U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699691A (en) * | 2012-06-07 | 2012-10-03 | 天津第一机床总厂 | Precision numerical control rotary workbench |
| CN105215787A (en) * | 2015-09-07 | 2016-01-06 | 成都飞机工业（集团）有限责任公司 | Calibration positioning tool turntable |
| CN111390580A (en) * | 2020-04-23 | 2020-07-10 | 秦皇岛齐二数控机床有限公司 | Anti-impact buffering table |
-
2012
- 2012-06-07 CN CN 201220266187 patent/CN202622349U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699691A (en) * | 2012-06-07 | 2012-10-03 | 天津第一机床总厂 | Precision numerical control rotary workbench |
| CN105215787A (en) * | 2015-09-07 | 2016-01-06 | 成都飞机工业（集团）有限责任公司 | Calibration positioning tool turntable |
| CN111390580A (en) * | 2020-04-23 | 2020-07-10 | 秦皇岛齐二数控机床有限公司 | Anti-impact buffering table |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210607 |