CN201537821U - Workpiece positioning and clamping device for threading machine - Google Patents
Workpiece positioning and clamping device for threading machine Download PDFInfo
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- CN201537821U CN201537821U CN2009202448182U CN200920244818U CN201537821U CN 201537821 U CN201537821 U CN 201537821U CN 2009202448182 U CN2009202448182 U CN 2009202448182U CN 200920244818 U CN200920244818 U CN 200920244818U CN 201537821 U CN201537821 U CN 201537821U
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Abstract
The utility model discloses a workpiece positioning and clamping device for threading machine, which is composed of a seat having an inner cavity, an operation mechanism positioned on the upper plane of the seat, and a transmission mechanism positioned in the seat cavity. The operation mechanism is composed of two V-shaped claws having opening opposed to each other, and two dragging boards on the left and the right respectively, in order to form a sponge opening capable of being opened and closed. The transmission mechanism, positioned in the inner cavity of the seat, is composed of a pneumatic motor positioned on one side of the inner cavity of the seat, a set of gears in different size engaged on the center of the inner cavity of the seat, a left-hand ball screw pair and a right-hand ball screw pair, wherein the small gear is sheathed onto the motor shaft, the shafts of two ball screw pairs are inserted in the inner pore of the large gear, and ball screw nut are respectively in fixed connection with the left and the right dragging boards. The device has functions of outer circle automatic positioning and adaptive clamping and protecting, can stably follows the cutting movement of the cutters, and keep a certain cutting depth between the cutter and the outer circle on each section of the workpiece.
Description
Technical field
The utility model relates to a kind of work piece positioning of lathe and holds device, particularly a kind of workpiece of thread cutting machine revolution locating and clamping apparatus.
Technical background:
Existing thread cutting machine is to the processing of cylindrical screw body part (as ball-screw, trapezoidal screw, compressor and screw in injection molding machine and various cylindrical worm) and to measure what adopt be the centre bore locating and clamping apparatus always, frame end to end on the device is top to hold out against workpiece two ends centre bore, and with this as the workpiece centre of gyration, drive the workpiece rotation by shift fork, implement processing or measurement.In processing or measuring, especially when car, the elongated thread part of Milling Process, the flexural deformation that part is produced with Milling Force is rocked in the rotation of thin and long units all can bring processing or measured deviation, and cutter is the closer to the middle part of part, rock with flexural deformation big more, even a heart frame is done supplemental support to part and also is difficult to overcome in adopting, have a strong impact on dimensional accuracy, pitch precision, middle footpath uniformity and the screw thread raceway roughness of thread part, product processed is difficult to reach designing requirement.
We know, the processing of double thread part is to do screw thread processing on the workpiece that processes its cylindrical again, and many indexs such as the middle footpath of screw thread, profile error are fixed according to cylindrical.And above-mentioned so-called centre bore only is the axial centre position at workpiece two ends, is not the axial centre of each section of workpiece.Whole work-piece center everywhere is to determine with the cylindrical of this position section, that is to say the cylindrical that the actual use benchmark of the processing of screw thread or measurement is a part.Yet existing locating and clamping apparatus but is the axial centre position that the axial centre position at workpiece two ends is assumed to each section of whole work-piece, this supposition and actual error arranged, it is big more to arrive median error more, and its processing or measurement result must be bigger near the centre position deviation.
The utility model content:
The utility model purpose is to propose a kind of thread cutting machine work piece positioning and holds device, and it is with the actual use benchmark location of workpiece and with its clamping; In process, follow Tool in Cutting and move and steadily servo-actuated, overcome rocking and flexural deformation of workpiece, guarantee that the processing result of all size thread part can both adhere to specification.
Realize that the above-mentioned purpose technical scheme is: the thread cutting machine work piece positioning is held device, and it is made up of bearing, a travelling mechanism that is positioned at plane on the bearing and a transmission mechanism that is positioned at the bearing cavity of a band inner chamber.Upper surface of support is equipped with the guide rail plate, and two closed slides are arranged on the guide rail plate, and the guide rail direction is vertical with the lathe bed longitudinal axis; Described travelling mechanism is made up of two shapes, identical V-arrangement claw and left and right two plankers of structure, two guide rails of left and right planker and the guide rail of guide rail plate are equipped, formation can adapt to the closed guideway that the cutting force size and Orientation changes, two V-arrangement claw openings are relative, be installed in respectively on the left and right planker, but the jaw folding that partners, that can carry out clamping and location to excircle of workpiece; Described transmission mechanism is arranged in the inner chamber of bearing, form by an air motor, the big pinion of a cover, a left-handed ball screw assembly, and a dextrorotation ball screw assembly,, air motor is fixedly mounted on a side of bearing inner chamber, pinion is installed in the center of bearing inner chamber, motor drive shaft by key and pinion shaft to socket, pinion and the gear wheel engagement that is loaded on the top, the left and right axle head that revolves ball screw assembly, inserts the gear wheel endoporus from two ends, carry out coaxial affixedly, the left and right nut that revolves ball screw assembly, connects firmly with left and right planker respectively.
When the mouth air inlet of the air motor left side of transmission mechanism, air motor drives gear wheel by pinion just to be changeed, drive the left and right nut that revolves ball screw assembly, and draw close rectilinear motion, and drive left and right planker move toward one another, two pairs of V-type claws just clamp excircle of workpiece, promptly realize workpiece outer location and clamping.The V-type claw can be adjusted by adjusting the gas pressure that flows into air motor the clamping dynamics of workpiece, the size of clamping force transfers to and workpiece is rotated in two pairs of V-type claws and moves axially, and can offset the swing and the flexural deformation under the cutting force effect of part off-axis again.In the part processing process, if than the oscillatory forces F of farm labourer's part off-axis
PendulumWith cutting force F
Cut, i.e. F
Pendulum+ F
Cut＞F
FolderWhen (V-type claw clamping force), because the compressibility of gas and ball screw assembly, rotation and straight-line invertibity, the V-type claw will drive and move after nut is done the self adaptation trace, order about left and right two ball screw assembly,s and do the trace counter-rotating.So just can avoid cutter, anchor clamps and workpiece impaired.Under the normal condition, F
Pendulum+ F
Cut≤ F
Folder, the V-type claw is all the time with the location clamped condition of constant force maintenance to the part cylindrical.
This device uses in pairs, is fixed on the vertical planker of lathe with the machine tool system, and tooling system is positioned at middle position on vertical planker, and this device of cover is respectively installed in the cutter both sides.Vertically planker is installed on the bed ways, when carrying out the screw chasing campaign, by lathe headstock chuck holding workpiece one end, and drive workpiece rotation, vertically planker is done vertically to decide than moving along bed ways, drive tooling system and two these devices of cover are together made axial linear movement, in the screw chasing process, cutter and two these device relative positions of cover remain fixing, therefore cutter and the outer fenestra of each section of workpiece remain a definite cutting depth, thereby have guaranteed the coaxial accuracy of the cylindrical screw body excircle of workpiece and the pitch diameter of thread, multinomial required precision such as profile accuracy.
After screw chasing is finished, the right mouthful air inlet of air motor, air motor counter-rotating, drive the gear wheel backward rotation by pinion, drive the left and right nut that revolves ball screw assembly, and do to separate rectilinear motion, and drive left and right planker separation, the V-type claw is finished and is unclamped action.
The utility model thread cutting machine work piece positioning is held device and is had cylindrical automatic positioning function and self adaptation clamping and defencive function, and workpiece clamp sets a simple and fast; In process, can follow the Tool in Cutting motion and steadily servo-actuated, make each section of workpiece cylindrical and cutter remain a definite cutting depth, overcome rocking and flexural deformation of workpiece, guaranteed that the processing result of all size thread part can both reach design accuracy.And, make it to realize that hardness is that the high speed of the thread part of HRC60 degree is revolved firmly and milled for the research and development manufacturing of numerical control screw thread whirlwind milling machine provides indispensable key technology, formed novel green high speed thread processing equipment.
Description of drawings:
Fig. 1 is an installation site of the present utility model schematic top plan view.
Profile embodiment illustrated in fig. 2.
Fig. 3 is the schematic appearance of Fig. 2 embodiment.
Fig. 4 is Fig. 1 partial right side view.
Among the figure: 1. the headstock, 2. chuck, 3. this device, 4. tooling system, 5. workpiece, 6. left-handed ball screw assembly,, 7. left-handed nut, 8. nut seat (2), 9. left planker, 10. pressing plate, 11.V shape claw (2), 12. guide rail plates, 13. the dextrorotation ball screw assembly,, 14. right-handed nuts, 15. right plankers, 16. sliding sleeve, 17. fine-tuning nuts, 18. fine setting screw rods, 19. bearing, 20. backing plates, 21. gear-boxes, 22. gear wheel, 23. pinions, 24. keys, 25. air motor, 26. vertical plankers, 27. master screw nuts, 28. master screw, 29. lathe beds, 30. supplemental support.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model thread cutting machine work piece positioning is held device and is made up of bearing and the transmission mechanism that is fixedly mounted on the travelling mechanism on bearing top and is installed in the bearing inner chamber, and transmission mechanism will rotatablely move and convert rectilinear motion to and drive travelling mechanism work.This device uses in pairs, be fixed on vertical planker 26 of lathe with the machine tool system, tooling system 4 is positioned at the middle position on vertical planker 26, and this device of cover is respectively installed in its both sides, vertically planker 26 is seated on the guide rail of bed piece 29, and is shown in Figure 3 as Fig. 1.When carrying out the screw chasing campaign, by lathe headstock chuck 2 holding workpieces 5 one ends, and drive workpiece 5 rotations, lathe master screw 28 drives master screw nut 27 and vertical planker 26 is done vertically to decide than moving along bed ways, vertically the tooling system on the planker 26 and two these devices of cover are together done vertically surely than rectilinear motion, in the screw chasing process, cutter and two these device relative positions of cover remain fixing, so each section of workpiece cylindrical and cutter also remain a definite cutting depth.
Bearing 19 upper faces are installed with a guide rail plate 12, and the both sides of guide rail plate 12 are the rectangular guideway of symmetrical parallel, and the guide rail direction is vertical with the lathe bed longitudinal axis; Two interior rectangular guidewaies are respectively arranged on the left and right planker of travelling mechanism, and they are equipped with two outer rectangular guidewaies of guide rail plate 12 respectively, form closed guide rail; The opening of two V-arrangement claws 11 is relative, is installed in respectively on left planker 9 and the right planker 15 by two pressing plates 10, but the jaw folding that partners, that can carry out clamping and location to the cylindrical of workpiece 5, as shown in Figure 3.V-type claw 11 can be done corresponding replacing according to the size of diameter of work.Guide rail plate 12 centre lower planes are equipped with gear-box 21, and guide rail plate 12 has two slots along center line, are positioned at the two ends of gear-box 21; The lower plane of left side planker 9 and right planker 15 respectively is equipped with a nut seat 8, and they insert in respectively in two slots; Transmission mechanism is arranged in the inner chamber of bearing, air motor 25 is fixedly mounted on bearing 19 inner chambers left side, motor drive shaft carries out axle by key 24 and pinion 23 in being supported on 21 times holes of gear-box and is connected, pinion 23 meshes with the gear wheel 22 of its top, the axle head of the axle head of left-handed ball screw assembly, 6 and dextrorotation ball screw assembly, 13 inserts the endoporus of gear wheel 22 from both sides, and it is fixedly connected to carry out axle sleeve.The nut seat 8 of the nut 7 of left-handed ball screw assembly, 6 below left planker 9 connects firmly, and the nut seat 8 of the nut 14 of dextrorotation ball screw assembly, 13 below right planker 15 connects firmly, as shown in Figure 2.
Consistent for guaranteeing claw 11 with the center line of the headstock 1, a backing plate 20 is installed, center line the overlapping of height realization claw 11 with the headstock 1 by reconditioning backing plate 20 at horizontal plane on the base plane of bearing 19; At bearing 19 inner chamber right-hand members, be installed with a micro-adjusting mechanism, the sliding sleeve 16 of this micro-adjusting mechanism is connected with the other end of dextrorotation leading screw 13.Rotate fine setting screw rod 18, drive fine-tuning nut 17 and sliding sleeve 16 and do horizontal displacement, drive whole transmission mechanism and travelling mechanism and do horizontal displacement, thereby the center line of realizing claw 11 and the headstock 1 is the overlapping of vertical plane, as shown in Figure 2.
The one end revolution positioning supports of workpiece 5 realizes that by the clamping of chuck 2 other end realizes turning round positioning supports by a pair roller of carriage 30, as shown in Figure 4.
Claims (2)
1. a thread cutting machine work piece positioning is held device, it is characterized in that: it is made up of bearing, a travelling mechanism that is positioned at plane on the bearing and a transmission mechanism that is positioned at the bearing cavity of a band inner chamber, upper surface of support is equipped with the guide rail plate, two closed slides are arranged on the guide rail plate, and its direction is vertical with the lathe bed longitudinal axis; Described travelling mechanism is made up of two V-arrangement claws and left and right two plankers, and described left and right planker is fitted on the guide rail of guide rail plate, and two V-arrangement claw openings are relative, be installed in respectively on the left and right planker, but the jaw of the folding that partners; Described transmission mechanism is arranged in the inner chamber of bearing, form by an air motor, the big pinion of a cover, a left-handed ball screw assembly, and a dextrorotation ball screw assembly,, described air motor is fixedly mounted on a side of bearing inner chamber, described pinion is installed in the center of bearing inner chamber, pinion shaft and motor drive shaft socket and with the gear wheel engagement of its top, the described left and right axle head that revolves ball screw assembly, is plugged on the gear wheel endoporus from two ends, and their ball nut connects firmly with described left and right planker respectively.
2. hold device according to the described thread cutting machine work piece positioning of claim 1, it is characterized in that: be connected with a micro-adjusting mechanism on the described travelling mechanism, this micro-adjusting mechanism is fixed on the other end of bearing inner chamber, and the other end of the sliding sleeve of micro-adjusting mechanism and dextrorotation leading screw is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202448182U CN201537821U (en) | 2009-10-15 | 2009-10-15 | Workpiece positioning and clamping device for threading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202448182U CN201537821U (en) | 2009-10-15 | 2009-10-15 | Workpiece positioning and clamping device for threading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201537821U true CN201537821U (en) | 2010-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202448182U Expired - Lifetime CN201537821U (en) | 2009-10-15 | 2009-10-15 | Workpiece positioning and clamping device for threading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201537821U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102699703A (en) * | 2012-06-07 | 2012-10-03 | 珠海格力电器股份有限公司 | Drilling fixture |
| CN102039535B (en) * | 2009-10-15 | 2012-12-05 | 陕西汉江机床有限公司 | Workpiece positioning and clamping device for thread cutting machine |
| CN103600126A (en) * | 2013-10-09 | 2014-02-26 | 浙江安统汽车部件有限公司 | Horizontal and vertical feed burr-free bar cutting device |
| CN103769916A (en) * | 2013-12-12 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | Worm self-locking and looseness-preventing type fine adjustment clamp |
| CN103826780A (en) * | 2011-09-18 | 2014-05-28 | 吉特迈意大利公司 | Thread whirling device and lathe comprising a thread whirling device |
| CN104191268A (en) * | 2014-08-24 | 2014-12-10 | 吉林大学 | Bidirectional self-centering fixture for workpieces |
| CN105772611A (en) * | 2014-06-20 | 2016-07-20 | 高田华 | Thread transferring device |
| CN106625096A (en) * | 2016-12-19 | 2017-05-10 | 新乡市振英机械设备有限公司 | Screen frame welding seam grinding tool for spin-vibration screen |
| CN107855795A (en) * | 2017-10-20 | 2018-03-30 | 宁波华驰轴承有限公司 | A kind of clamping device for bearing machining |
| CN108356571A (en) * | 2018-04-26 | 2018-08-03 | 重庆恒博机械制造有限公司 | A kind of shaft-like workpiece billeteer |
| CN108972233A (en) * | 2018-07-03 | 2018-12-11 | 柳州市钜嘉机械有限公司 | A kind of automatic polishing equipment |
| CN109368319A (en) * | 2018-09-28 | 2019-02-22 | 陕西北人印刷机械有限责任公司 | A kind of sleeve rubber roller roller core clamping and positioning device |
| CN109514326A (en) * | 2018-12-23 | 2019-03-26 | 李兆林 | A kind of intelligence meal selling machine discharge nozzle processing compression adjuster |
| CN114589324A (en) * | 2022-03-25 | 2022-06-07 | 重庆明达天晨汽车零部件制造有限公司 | Clamping jaw with correcting function for joint fork machining |
| WO2024098656A1 (en) * | 2022-11-09 | 2024-05-16 | 苏州复玖机械科技有限公司 | Wind turbine generator blade end face milling machine |
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2009
- 2009-10-15 CN CN2009202448182U patent/CN201537821U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039535B (en) * | 2009-10-15 | 2012-12-05 | 陕西汉江机床有限公司 | Workpiece positioning and clamping device for thread cutting machine |
| CN103826780B (en) * | 2011-09-18 | 2017-08-25 | 吉特迈意大利公司 | Screw thread cyclone cutting device and the lathe for including screw thread cyclone cutting device |
| CN103826780A (en) * | 2011-09-18 | 2014-05-28 | 吉特迈意大利公司 | Thread whirling device and lathe comprising a thread whirling device |
| CN102699703B (en) * | 2012-06-07 | 2015-11-25 | 珠海格力电器股份有限公司 | A kind of boring grab |
| CN102699703A (en) * | 2012-06-07 | 2012-10-03 | 珠海格力电器股份有限公司 | Drilling fixture |
| CN103600126A (en) * | 2013-10-09 | 2014-02-26 | 浙江安统汽车部件有限公司 | Horizontal and vertical feed burr-free bar cutting device |
| CN103600126B (en) * | 2013-10-09 | 2015-12-02 | 浙江安统汽车部件有限公司 | One is feed impulse-free robustness bar cutter sweep in length and breadth |
| CN103769916A (en) * | 2013-12-12 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | Worm self-locking and looseness-preventing type fine adjustment clamp |
| CN105772611A (en) * | 2014-06-20 | 2016-07-20 | 高田华 | Thread transferring device |
| CN104191268A (en) * | 2014-08-24 | 2014-12-10 | 吉林大学 | Bidirectional self-centering fixture for workpieces |
| CN104191268B (en) * | 2014-08-24 | 2016-04-27 | 吉林大学 | A kind of Bidirectional self-centering fixture of workpiece |
| CN106625096A (en) * | 2016-12-19 | 2017-05-10 | 新乡市振英机械设备有限公司 | Screen frame welding seam grinding tool for spin-vibration screen |
| CN107855795A (en) * | 2017-10-20 | 2018-03-30 | 宁波华驰轴承有限公司 | A kind of clamping device for bearing machining |
| CN108356571A (en) * | 2018-04-26 | 2018-08-03 | 重庆恒博机械制造有限公司 | A kind of shaft-like workpiece billeteer |
| CN108356571B (en) * | 2018-04-26 | 2023-08-01 | 重庆恒博机械制造有限公司 | Coarse machining machine tool for shaft workpieces |
| CN108972233A (en) * | 2018-07-03 | 2018-12-11 | 柳州市钜嘉机械有限公司 | A kind of automatic polishing equipment |
| CN109368319A (en) * | 2018-09-28 | 2019-02-22 | 陕西北人印刷机械有限责任公司 | A kind of sleeve rubber roller roller core clamping and positioning device |
| CN109514326A (en) * | 2018-12-23 | 2019-03-26 | 李兆林 | A kind of intelligence meal selling machine discharge nozzle processing compression adjuster |
| CN114589324A (en) * | 2022-03-25 | 2022-06-07 | 重庆明达天晨汽车零部件制造有限公司 | Clamping jaw with correcting function for joint fork machining |
| WO2024098656A1 (en) * | 2022-11-09 | 2024-05-16 | 苏州复玖机械科技有限公司 | Wind turbine generator blade end face milling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100804 Effective date of abandoning: 20091015 |
|
| RGAV | Abandon patent right to avoid regrant |