CN202317310U - Digital control indexing and clamping device for large spiral bevel gear broaching machine - Google Patents
Digital control indexing and clamping device for large spiral bevel gear broaching machine Download PDFInfo
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- CN202317310U CN202317310U CN 201120442546 CN201120442546U CN202317310U CN 202317310 U CN202317310 U CN 202317310U CN 201120442546 CN201120442546 CN 201120442546 CN 201120442546 U CN201120442546 U CN 201120442546U CN 202317310 U CN202317310 U CN 202317310U
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Abstract
The utility model relates to a digital control indexing and clamping device for a large spiral bevel gear broaching machine. The digital control indexing and clamping device comprises an indexing mechanism driven by a servo motor, and is characterized by further comprising a hydraulic clamping mechanism, wherein the hydraulic clamping mechanism comprises a workpiece clamping part and a spindle clamping part; the workpiece clamping part comprises a small hydraulic piston cylinder fixedly connected with one end of the workpiece spindle; a piston rod of the small hydraulic piston cylinder extends from a cylinder body and is mounted in the workpiece spindle; the head part of the piston rod is connected with a pull rod; the spindle clamping part comprises a hydraulic cylinder sleeved at the outer part of the small hydraulic piston cylinder; a friction sheet fixed with one end of the workpiece spindle is mounted in the hydraulic cylinder; and a piston sheet is arranged between the friction sheet and the hydraulic cylinder. The digital control indexing and clamping device has the benefits as follows: the digital control indexing operation is adopted, and an indexing damping device and an indexing hydraulic clamping device are used in an assisting way, so that the indexing action of a machine tool is stable, precise and reliable, a small vibration of workpieces in a cutting process is avoided, and the gear processing precision is improved; and the large gear processing can be realized, and the requirements of small batch and multiple varieties in industrial production of automobiles can be met.
Description
Technical field
The utility model belongs to the gear-broach machine technical field, particularly relates to large-scale spiral bevel gear broaching machine calibration of a kind of numerical control and clamping device.
Background technology
Bull wheel in spiral bevel gear pair or the hypoid gear pair is widely used in various industries such as automobile, tractor, engineering machinery, military project as the vital part of transmission device.The teeth directional, profile of tooth, tooth pitch equal error that in spiral bevel gear and Machining of Near-Hyperboloid Gear process, will guarantee gear can guarantee that just processed tooth transmission accuracy is high in certain claimed range.Gear-broach machine of the prior art is in the workpiece working angles, because the calibration of indexing mechanism acts frequently, required time is shorter, and during the worm and gear engagement, its gap is difficult to quick elimination; In addition, because worm and gear meshes for a long time, under the protection of no backlash eliminating equipment, will influence and reduce its indexing accuracy.It is to step up workpiece box integral body through hydraulic cylinder that workpiece clamps, because its main cutting cutter concentrates on the workpiece casing, utilizes the hydraulic clamp workpiece box can't avoid workpiece that small play takes place in working angles.Along with auto industry production by of the development of in enormous quantities, few kind to small batch, many kinds, more and more to the quantity required of large-scale high-precision gear, quality requirement is also increasingly high, and traditional numerical control spiral bevel gear broaching machine can't adapt to above-mentioned requirements.
Summary of the invention
The utility model provides a kind of simple in structure and can increase substantially the large-scale spiral bevel gear broaching machine calibration of numerical control and the clamping device of gear-broach machine indexing accuracy and gear cutting machining accuracy 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:
Large-scale spiral bevel gear broaching machine calibration of numerical control and clamping device; Comprise indexing mechanism by driven by servomotor; Said indexing mechanism comprises; Through the worm screw that shaft coupling is connected with the servomotor output shaft, said worm screw two ends are fixed in the endless screw support through bearings, and the work spindle cylindrical is through being fixed with the worm gear with worm engaging; It is characterized in that: also comprise the hydraulic clamp mechanism that is used to guarantee the workpiece indexing position; Said hydraulic clamp mechanism comprises workpiece clamping part and main shaft clamping part; Said workpiece clamping part comprises the small-sized hydraulic piston cylinder affixed with work spindle one end; The piston rod of small-sized hydraulic piston cylinder stretches out cylinder body outward packs in the work spindle, and the said piston rod head pull bar that is threaded, said main shaft clamping part comprise and be arranged in the main shaft casing and be sleeved on the outside hydraulic cylinder of small-sized hydraulic piston cylinder; Be equipped with in the said hydraulic cylinder and the fixing friction plate of work spindle one end, be provided with the hydraulic cylinder piston sheet between said friction plate and the hydraulic cylinder.
The utility model can also adopt following technical scheme:
An also fixing gear wheel on the worm gear of said indexing mechanism, said gear wheel and pinion shaft engagement, the pinion shaft hydraulic motor interior with being fixed on the main shaft casing is connected, to constitute the hydraulic damping device.
Be equipped with slight clearance between said friction plate two sides and main shaft cabinet wall, the piston sheet.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme; When the work spindle calibration; Hydraulic work system drives hydraulic motor and produces and the opposite moment of torsion of work spindle gyratory directions tangent line; This torsional interaction and passes to the worm and gear kinematic pair through gear wheel on pinion shaft, the worm and gear engagement is rotated receive the opposing torque from damping unit simultaneously all the time; Eliminate the play gap in the calibration action, make the calibration process more steady, accurate.When calibration was accomplished, cutting workpiece need guarantee that workpiece is not squinted by position and calibration completing place under the cutting force effect.Hydraulic work system gives piston sheet pressure in the hydraulic cylinder, and this masterpiece is used for friction plate, and it firmly is pressed in the main shaft casing, and main shaft is clamped under the frictional force effect.Clamp and the main shaft clamping through workpiece, guarantee that like this workpiece is in the clamped state all the time in working angles, guarantee flank of tooth fineness and tooth pitch precision.The utility model not only can be realized the processing of large gear, but also can satisfy the requirement that auto industry is produced small batch, many kinds.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, indexing mechanism; 1-1, work spindle; 1-2, worm gear; 1-3, worm screw; 1-4, endless screw support; 1-5, gear wheel; 1-6, pinion shaft; 1-7, hydraulic motor; 2, hydraulic clamp mechanism; 2-1, small-sized hydraulic piston cylinder; 2-2, piston rod; 2-3, hydraulic cylinder; 2-4, piston sheet; 2-5, friction plate; 3, main shaft casing.
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; Large-scale spiral bevel gear broaching machine calibration of numerical control and clamping device; Comprise the indexing mechanism 1 by driven by servomotor, said indexing mechanism comprises, the worm screw 1-3 that is connected with the servomotor output shaft through shaft coupling; Said worm screw two ends are fixed among the endless screw support 1-4 through bearings, and work spindle 1-1 cylindrical is fixed with the worm gear 1-2 with worm engaging.An also fixing gear wheel 1-5 on the worm gear 1-2 of said indexing mechanism, said gear wheel and pinion shaft 1-6 engagement, pinion shaft be fixed on main shaft casing 3 interior hydraulic motor 1-7 and be connected, with formation hydraulic damping device.When the work spindle calibration; Hydraulic work system drives hydraulic motor and produces and the opposite moment of torsion of work spindle gyratory directions tangent line; This torsional interaction and passes to the worm and gear kinematic pair through gear wheel on pinion shaft, the worm and gear engagement is rotated receive the opposing torque from damping unit simultaneously all the time; Eliminate the play gap in the calibration action, make the calibration process more steady, accurate.
Also be provided with the hydraulic clamp mechanism 2 that is used to guarantee the workpiece indexing position in this device; Said hydraulic clamp mechanism comprises workpiece clamping part and main shaft clamping part; Said workpiece clamping part comprises the small-sized hydraulic piston cylinder 2-1 affixed with work spindle 1-1 one end; The piston rod of small-sized hydraulic piston cylinder stretches out cylinder body outward and packs in the work spindle 1-1; The said piston rod head frock pull bar that is threaded; Said main shaft clamping part comprises and is arranged in the main shaft casing 3 and is sleeved on the outside hydraulic cylinder 2-3 of small-sized hydraulic piston cylinder, be equipped with in the said hydraulic cylinder one with the fixing friction plate 2-5 of work spindle one end, be provided with hydraulic cylinder piston sheet 2-4 between said friction plate and the hydraulic cylinder.Be equipped with slight clearance between the two sides of said friction plate and main shaft cabinet wall, the piston sheet.
When cutting workpiece, piston rod is retreated, and pull bar descends, and workpiece is tightened up.After cutting was accomplished, piston rod advanced, and pull bar rises, and workpiece is released.Said main shaft clamps and relies on hydraulic cylinder 2-3 and friction plate 2-5 to realize.When calibration was accomplished, cutting workpiece need guarantee that workpiece is not squinted by position and calibration completing place under the cutting force effect.The hydraulic work system of hydraulic clamp mechanism 2 gives piston sheet 2-4 pressure among the hydraulic cylinder 2-3, and this pressure acts on friction plate 2-5, and it firmly is pressed in the main shaft casing, and main shaft is clamped under the frictional force effect.Clamp and the main shaft clamping through workpiece, guarantee that like this workpiece is in the clamped state all the time in working angles, and then guaranteed flank of tooth fineness and tooth pitch precision.
Claims (3)
1. large-scale spiral bevel gear broaching machine calibration of numerical control and clamping device; Comprise indexing mechanism by driven by servomotor; Said indexing mechanism comprises; Through the worm screw that shaft coupling is connected with the servomotor output shaft, said worm screw two ends are fixed in the endless screw support through bearings, and the work spindle cylindrical is through being fixed with the worm gear with worm engaging; It is characterized in that: also comprise the hydraulic clamp mechanism that is used to guarantee the workpiece indexing position; Said hydraulic clamp mechanism comprises workpiece clamping part and main shaft clamping part; Said workpiece clamping part comprises the small-sized hydraulic piston cylinder affixed with work spindle one end; The piston rod of small-sized hydraulic piston cylinder stretches out cylinder body outward packs in the work spindle, and the said piston rod head pull bar that is threaded, said main shaft clamping part comprise and be arranged in the main shaft casing and be sleeved on the outside hydraulic cylinder of small-sized hydraulic piston cylinder; Be equipped with in the said hydraulic cylinder and the fixing friction plate of work spindle one end, be provided with the hydraulic cylinder piston sheet between said friction plate and the hydraulic cylinder.
2. large-scale spiral bevel gear broaching machine calibration of numerical control according to claim 1 and clamping device; It is characterized in that: also be fixed with a gear wheel on the worm gear of said indexing mechanism; Said gear wheel and pinion shaft engagement; The pinion shaft hydraulic motor interior with being fixed on the main shaft casing is connected, to constitute the hydraulic damping device.
3. large-scale spiral bevel gear broaching machine calibration of numerical control according to claim 1 and clamping device is characterized in that: be equipped with slight clearance between said friction plate two sides and main shaft cabinet wall, the piston sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120442546 CN202317310U (en) | 2011-11-10 | 2011-11-10 | Digital control indexing and clamping device for large spiral bevel gear broaching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120442546 CN202317310U (en) | 2011-11-10 | 2011-11-10 | Digital control indexing and clamping device for large spiral bevel gear broaching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317310U true CN202317310U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120442546 Expired - Fee Related CN202317310U (en) | 2011-11-10 | 2011-11-10 | Digital control indexing and clamping device for large spiral bevel gear broaching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357681A (en) * | 2011-11-10 | 2012-02-22 | 天津第一机床总厂 | Indexing and clamping device for numerically-controlled large spiral bevel gear broaching machine |
-
2011
- 2011-11-10 CN CN 201120442546 patent/CN202317310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357681A (en) * | 2011-11-10 | 2012-02-22 | 天津第一机床总厂 | Indexing and clamping device for numerically-controlled large spiral bevel gear broaching machine |
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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: 20120711 Termination date: 20191110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |