CN103009099B - Rotary fixture for machining center - Google Patents
Rotary fixture for machining center Download PDFInfo
- Publication number
- CN103009099B CN103009099B CN201210516140.5A CN201210516140A CN103009099B CN 103009099 B CN103009099 B CN 103009099B CN 201210516140 A CN201210516140 A CN 201210516140A CN 103009099 B CN103009099 B CN 103009099B
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- rotating shaft
- fixedly connected
- axle sleeve
- machining center
- system case
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Abstract
The invention discloses a rotary fixture for a machining center. The rotary fixture comprises a fixture seat. A positioning rotating shaft is supported on the fixture seat, and is fixedly connected with a clamping mechanism case. A plurality of worm gears are arranged in the clamping mechanism case, and are simultaneously meshed with a worm which is supported on the clamping mechanism case. A shaft sleeve is fixedly arranged in the circumferential direction of an axle of each worm gear, and is supported on the clamping mechanism case. One end of each shaft sleeve is fixedly connected with a clamping device, and the other end of each shaft sleeve is connected with a push-pull cylinder. Each clamping device is provided with an axial through hole which is communicated with an axial hole of the corresponding shaft sleeve. A pull rod penetrates through each axial through hole and the axial hole of the corresponding shaft sleeve. One end of each pull rod is a conical head, and the other end of each pull rod is connected with a piston of the corresponding push-pull cylinder. A graduator is fixedly arranged on each shaft sleeve. A graduation cylinder is arranged on the clamping mechanism case. One end of the worm is connected with a first servo motor. One end of the positioning rotating shaft extends from the clamping mechanism case to be connected with the output end of a divider. The input end of the divider is connected with a second servo motor. According to the fixture, the production efficiency of a factory can be improved, and the production cost can be lowered.
Description
Technical field
The present invention relates to a kind of fixture, particularly relate to a kind of rolling clamp of machining center.
Background technology
At present, the workpiece of work in-process processing belt centre bore in the heart, need be fixed on equipment by fixture by workpiece usually, and fixation workpiece mode is first located on the fixture of band locating shaft by trade union college, and then fixed Workpiece clamping by cylinder or bolt.Fixture on current machining center, can not the position of travelling workpiece after clamping workpiece, needs the cutter of multiple directions to process workpiece from the multiple directions of workpiece, completes and often need multiple clamping to whole processing of workpiece; And fixture at present on machining center once can only clamping workpiece, can not realize the multiple workpiece of clamped one time and process simultaneously.Therefore need larger processing center machine bed apparatus and more servomotor, take larger space, energy consumption is higher, inefficiency, adds the production cost of factory.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of rolling clamp of machining center, this fixture can the multiple workpiece of clamped one time, and allows workpiece at both direction synchronous rotary, improves the production efficiency of factory, reduces production cost.
The object of the present invention is achieved like this:
A kind of rolling clamp of machining center, comprise clamping fixture seat, described clamping fixture seat is rotatably supported with a positioning rotating shaft, on described positioning rotating shaft, circumference is fixedly connected with a clamp system case, multiple worm gear is side by side provided with in described clamp system case, multiple worm gear side by side simultaneously with a worm engaging, described worm screw is parallel with positioning rotating shaft, the two ends of worm screw by bearings in clamp system case, the axle center circumference of each worm gear fixes an axle sleeve, the two ends of axle sleeve respectively by bearings in clamp system case, one end of each axle sleeve is fixedly connected with the clamping device of inflatable distortion, the other end of each axle sleeve connects push-and-pull cylinder, described clamping device is provided with axially extending bore and communicates with the axis hole of axle sleeve, pull bar runs through the axis hole of axially extending bore that clamping device is provided with and axle sleeve, one end of pull bar is the conical head of reducing, the other end is connected with the piston of push-and-pull cylinder, on described axle sleeve, circumference is fixed with protractor, it is corresponding with protractor that clamp system case is provided with calibration cylinder, one end of described worm screw is fixedly connected with the rotating shaft of the first servomotor, first servomotor is fixedly connected with clamp system case, one end of described positioning rotating shaft is extended clamp system case and is fixedly connected with the output of dispenser, the input of dispenser is fixedly connected with the rotating shaft of the second servomotor, second servomotor is fixed on clamping fixture seat.
The quantity of described worm gear is three.
The expansion rod that described pull bar comprises connecting rod, is threaded with connecting rod, conical head is positioned at one end of expansion rod, and the other end of expansion rod coordinates with the threaded one end of connecting rod, and the other end of connecting rod is fixedly connected with the piston of push-and-pull cylinder.
The external part of described clamping device is provided with the expansion pawl that four cross sections are the inflatable distortion of U-shaped.
Described clamping fixture seat is provided with a dispenser gripper shoe, and dispenser is fixed in dispenser gripper shoe.
Described clamping fixture seat is provided with a slot to make way rotated for clamp system case.
Described worm screw is fixedly connected with the rotating shaft of the first servomotor by shaft coupling.
Described dispenser is fixedly connected with the rotating shaft of positioning rotating shaft, the second servomotor respectively by shaft coupling.
Owing to adopting technique scheme, first servomotor of this rolling clamp can drive worm screw to rotate, thus drives worm gear to rotate, and then drives clamping device rotation, makes workpiece can along the axis rotation of worm screw; Second servomotor of this rolling clamp can drive positioning rotating shaft to rotate by dispenser, thus drives clamp system case to rotate, and then makes workpiece can along the axis rotation of positioning rotating shaft.Second servomotor is connected by dispenser with positioning rotating shaft, make workpiece along the precision of the axis rotation of positioning rotating shaft and the life-span higher.Calibration cylinder on clamp system case controls the protractor on axle sleeve, make workpiece along worm screw axle center rotation precision and the life-span higher.Push-and-pull cylinder pulls pull bar by piston, thus makes the U-shaped expansion pawl of the conical head extruding clamping device of pull bar, and expansion pawl is radially expanded, thus circumferential clamping work pieces.This rolling clamp once can the multiple workpiece of clamping, then by rotational workpieces, cutter only needs just can comprehensively to process workpiece a direction feeding.
Pull bar is threaded with expansion rod by connecting rod, expansion rod is facilitated and directly to take off from clamp system case, workpiece for convenience detach.
This fixture can clamping travelling workpiece by the way, once can the multiple workpiece of clamping, and workpiece can be allowed at both direction synchronous rotary, make cutter can multiple of a direction processing work, improve the production efficiency of factory, reduce production cost.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure diagram of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the structure diagram of clamp system case of the present invention;
Fig. 5 is the B-B sectional view of Fig. 4.
In accompanying drawing, 1 is the second servomotor, and 2 is dispenser, and 3 is dispenser gripper shoe, and 4 is positioning rotating shaft, 5 is clamp system case, and 6 is the first servomotor, and 7 is worm screw, and 8 is worm gear, 9 is axle sleeve, and 10 is pull bar, and 10a is connecting rod, 10b is expansion rod, and 11 is push-and-pull cylinder, and 12 is positioning rotating shaft gripper shoe, 13 is clamping device, and 14 is expansion pawl, and 15 is calibration cylinder, 16 is protractor, and 17 is slot to make way, and 18 is clamping fixture seat.
Detailed description of the invention
It is a kind of embodiment of the rolling clamp of machining center see Fig. 1 ~ Fig. 5, this rolling clamp comprises clamping fixture seat 18, described clamping fixture seat 18 is rotatably supported with a positioning rotating shaft 4, clamping fixture seat 18 is provided with positioning rotating shaft gripper shoe 12, described positioning rotating shaft 4 by bearings in positioning rotating shaft gripper shoe 12.On described positioning rotating shaft 4, circumference is fixedly connected with a clamp system case 5, and clamp system case 5 can be driven when positioning rotating shaft 4 rotates to rotate.Described clamping fixture seat 18 is provided with a slot to make way 17 rotated for clamp system case 5, this slot to make way 17 is positioned in positioning rotating shaft gripper shoe 12, this slot to make way 17 makes clamp system case 5 can move to position perpendicular to clamping fixture seat 18, and can be spacing to clamp system case 5.Be provided with multiple worm gear 8 side by side in described clamp system case 5, multiple worm gear 8 side by side engages with a worm screw 7 simultaneously, the two ends of worm screw 7 by bearings in clamp system case 5, can drive when worm screw 7 is rotated multiple worm gear 8 simultaneously, synchronous rotary.The quantity of worm gear 8 can be determined according to the actual conditions of factory, and as output, area etc., worm gear 8 quantity selected in the present embodiment is three.Described worm screw 7 is parallel with positioning rotating shaft 4, and during to ensure that clamp system case 5 rotates, the position of three worm gear 8 motions is identical.The axle center of each worm gear respectively circumference is fixed with an axle sleeve 9, the two ends of axle sleeve 9 respectively by bearings in clamp system case 5, one end of each axle sleeve 9 is fixedly connected with the clamping device 13 of inflatable distortion, the mode that is fixedly connected with is for being threaded, because the load of this end of axle sleeve 9 is comparatively large, this end of axle sleeve 9 passes through two bearings in clamp system case 5.The external part of described clamping device 13 is provided with the expansion pawl 14 that four cross sections are the inflatable distortion of U-shaped, and the other end of each axle sleeve 9 connects push-and-pull cylinder 11, and described clamping device 13 is provided with axially extending bore and communicates with the axis hole of axle sleeve 9, forms moving conduit.Pull bar 10 runs through the axis hole of axially extending bore that clamping device 13 is provided with and axle sleeve 9, one end of pull bar 10 is the conical head of reducing, the other end is connected with the piston of push-and-pull cylinder 11, when after installation workpiece, pull bar 10 shrinks under the effect of push-and-pull cylinder 11 in axle sleeve 9, the conehead extrusion expansion pawl 14 of pull bar 10, makes the expansion pawl 14 of U-shaped be radially expanded, thus circumferential clamping work pieces.The expansion rod 10b that described pull bar 10 comprises connecting rod 10a, is threaded with connecting rod, conical head is positioned at one end of expansion rod 10b, the other end of expansion rod 10b coordinates with the threaded one end of connecting rod 10a, and the other end of connecting rod 10a is fixedly connected with the piston of push-and-pull cylinder 11.This separable structure of pull bar 10 makes expansion rod 10b directly take off from connecting rod 10a, can workpiece for convenience detach.On described axle sleeve 9, circumference is fixed with protractor 16, it is corresponding with protractor 16 that clamp system case 5 is provided with calibration cylinder 15, the piston rod of calibration cylinder 15 is extended to be contacted with the protractor 16 that axle sleeve 9 is respectively equipped with respectively, protractor 16 make workpiece along worm screw 7 axis rotation precision and the life-span higher.One end of described worm screw 7 is fixedly connected with the rotating shaft of the first servomotor 6, and described worm screw 7 is fixedly connected with the rotating shaft of the first servomotor 6 by shaft coupling, the first servomotor 6 is fixedly connected with clamp system case 5.When the first servomotor 6 works, drive three worm gear 8 synchronous axial system by worm screw 7, thus drive clamping device 13 to rotate, and then drive workpiece around the axis rotation of axle sleeve 9.One end of described positioning rotating shaft 4 is extended clamp system case 5 and is fixedly connected with the output of dispenser 2, the input of dispenser 2 is fixedly connected with the rotating shaft of the second servomotor 1, because dispenser 2 is pure machine driving, and be operated in hermetic fuel tank, there is high accuracy, high life, highly reliable advantage.Described clamping fixture seat 18 is provided with a dispenser gripper shoe 3, and dispenser 2 is fixed in dispenser gripper shoe 3, and described dispenser 2 is fixedly connected with the rotating shaft of positioning rotating shaft 4, second servomotor 1 respectively by shaft coupling.Described second servomotor 1 is fixed on clamping fixture seat 18, when the second servomotor 1 works, drives positioning rotating shaft 4 to rotate by dispenser 2, thus drives clamp system case 5 to rotate, and then drives workpiece around the axis rotation of positioning rotating shaft 4.
Before the work of this rolling clamp, first the workpiece of band centre bore is enclosed within the expansion pawl of clamping device, again the expansion rod of pull bar is passed the centre bore of clamping device and the axis hole of axle sleeve, be threadedly connected on the connecting rod in axle sleeve, open push-and-pull cylinder, push-and-pull cylinder pulls pull bar by piston, thus makes the U-shaped expansion pawl of the conical head extruding clamping device of pull bar, expansion pawl is radially expanded, thus circumferential clamping work pieces.First servomotor work, worm screw is driven to rotate, thus drive three worm gears to rotate, three axle sleeves are synchronized with the movement drive clamping device under the driving of worm screw, and then drive workpiece to rotate, because axle sleeve is provided with protractor, the cylinder that clamp system case is provided with can stretch out piston rod and contact with the pneumatic protractor that axle sleeve is provided with, to axle sleeve calibration and locking positioning, the angle that fine rotational workpiece one needs, workpiece, around the axis rotation of axle sleeve, can allow machining center in each face of radial processing work.Second servomotor task driven clamp system case rotates, and rotates workpiece to correct position, and workpiece, around the axis rotation of positioning rotating shaft, makes machining center can the inclined hole of processing work.Therefore the present invention makes cutter only need just can comprehensively to process workpiece a direction feeding.
The present invention is not only confined to above-described embodiment, carries out the technical scheme of few modifications when not deviating from technical solution of the present invention spirit, should fall into protection scope of the present invention.
Claims (8)
1. the rolling clamp of a machining center, comprise clamping fixture seat, it is characterized in that: described clamping fixture seat is rotatably supported with a positioning rotating shaft, on described positioning rotating shaft, circumference is fixedly connected with a clamp system case, multiple worm gear is side by side provided with in described clamp system case, multiple worm gear side by side simultaneously with a worm engaging, described worm screw is parallel with positioning rotating shaft, the two ends of worm screw by bearings in clamp system case, the axle center circumference of each worm gear fixes an axle sleeve, the two ends of axle sleeve respectively by bearings in clamp system case, one end of each axle sleeve is fixedly connected with the clamping device of inflatable distortion, the other end of each axle sleeve connects push-and-pull cylinder, described clamping device is provided with axially extending bore and communicates with the axis hole of axle sleeve, pull bar runs through the axis hole of axially extending bore that clamping device is provided with and axle sleeve, one end of pull bar is the conical head of reducing, the other end is connected with the piston of push-and-pull cylinder, on described axle sleeve, circumference is fixed with protractor, it is corresponding with protractor that clamp system case is provided with calibration cylinder, one end of described worm screw is fixedly connected with the rotating shaft of the first servomotor, first servomotor is fixedly connected with clamp system case, one end of described positioning rotating shaft is extended clamp system case and is fixedly connected with the output of dispenser, the input of dispenser is fixedly connected with the rotating shaft of the second servomotor, second servomotor is fixed on clamping fixture seat.
2. the rolling clamp of machining center according to claim 1, is characterized in that: the quantity of described worm gear is three.
3. the rolling clamp of machining center according to claim 1, it is characterized in that: the expansion rod that described pull bar comprises connecting rod, is threaded with connecting rod, conical head is positioned at one end of expansion rod, the other end of expansion rod coordinates with the threaded one end of connecting rod, and the other end of connecting rod is fixedly connected with the piston of push-and-pull cylinder.
4. the rolling clamp of machining center according to claim 1, is characterized in that: the external part of described clamping device is provided with the expansion pawl that four cross sections are the inflatable distortion of U-shaped.
5. the rolling clamp of machining center according to claim 1, is characterized in that: described clamping fixture seat is provided with a dispenser gripper shoe, and dispenser is fixed in dispenser gripper shoe.
6. the rolling clamp of machining center according to claim 1 or 5, is characterized in that: described clamping fixture seat is provided with a slot to make way rotated for clamp system case.
7. the rolling clamp of machining center according to claim 1, is characterized in that: described worm screw is fixedly connected with the rotating shaft of the first servomotor by shaft coupling.
8. the rolling clamp of machining center according to claim 1, is characterized in that: described dispenser is fixedly connected with the rotating shaft of positioning rotating shaft, the second servomotor respectively by shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210516140.5A CN103009099B (en) | 2012-12-06 | 2012-12-06 | Rotary fixture for machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210516140.5A CN103009099B (en) | 2012-12-06 | 2012-12-06 | Rotary fixture for machining center |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103009099A CN103009099A (en) | 2013-04-03 |
| CN103009099B true CN103009099B (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210516140.5A Expired - Fee Related CN103009099B (en) | 2012-12-06 | 2012-12-06 | Rotary fixture for machining center |
Country Status (1)
| Country | Link |
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| CN (1) | CN103009099B (en) |
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| CN105171471B (en) * | 2015-09-30 | 2017-05-17 | 河南飞龙(芜湖)汽车零部件有限公司 | Supporting device for automotive water pump cover clamp |
| CN105252411B (en) * | 2015-10-26 | 2018-01-02 | 长安大学 | A kind of clamping head is capable of the fixture of auto-steering |
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| CN106799468A (en) * | 2016-11-30 | 2017-06-06 | 宁夏共享模具有限公司 | A kind of pneumatic expansion fixture for carrying core |
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| CN108838698B (en) * | 2018-08-17 | 2024-09-03 | 上海杰武精密机械有限公司 | Multi-station processing device of four-axis equipment |
| CN111872740A (en) * | 2020-06-30 | 2020-11-03 | 安徽省捷甬达智能机器股份有限公司 | Simple graduator |
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Patent Citations (10)
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| EP0614716A1 (en) * | 1993-02-08 | 1994-09-14 | Xian Hua Xu | Mandrel for processing workpiece with internal spline |
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| CN201140288Y (en) * | 2008-01-21 | 2008-10-29 | 成都恒成工具制造有限公司 | Automatic displacement apparatus for milling machine spindle |
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