CN203843568U - Workpiece arc surface machining fixture - Google Patents

Workpiece arc surface machining fixture Download PDF

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Publication number
CN203843568U
CN203843568U CN201320836406.4U CN201320836406U CN203843568U CN 203843568 U CN203843568 U CN 203843568U CN 201320836406 U CN201320836406 U CN 201320836406U CN 203843568 U CN203843568 U CN 203843568U
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CN
China
Prior art keywords
workpiece
base plate
pressure strip
fixture
circular base
Prior art date
Application number
CN201320836406.4U
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Chinese (zh)
Inventor
陈光明
Original Assignee
凯迈(洛阳)机电有限公司
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Publication date
Application filed by 凯迈(洛阳)机电有限公司 filed Critical 凯迈(洛阳)机电有限公司
Priority to CN201320836406.4U priority Critical patent/CN203843568U/en
Application granted granted Critical
Publication of CN203843568U publication Critical patent/CN203843568U/en

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Abstract

The utility model discloses a workpiece arc surface machining fixture comprising a round base plate, pressing plates and screwed fasteners. A plurality of grooves used for clamping workpieces are evenly distributed on one side face of the round base plate circumferentially at intervals. The pressing plates comprise pressing portions used for correspondingly pressing the corresponded positions of the workpiece to tightly press the workpiece to the facing grooves. The screwed fasteners are used for tightly assembling the pressing plates to the round base plate on the workpiece pressing direction so as to allow the pressing plates to press the workpiece tightly. In the process of clamping the workpiece, the pressing plates only move on the workpiece pressing direction, the pressing portions of the pressing plates apply the pressing force to the workpiece on the workpiece pressing direction only, the rotating force applied to the surface of the workpiece through the pressing portions can be avoided, and the surface of the workpiece can be prevented from damage. In the process clamping the workpiece by using the fixture, the workpiece is positioned on six degrees of freedom through matching the grooves of the round base plate and the pressing plates, and the clamping and positioning of the workpiece are guaranteed effectively.

Description

Workpiece circular arc face fixture for processing

Technical field

The utility model relates to a kind of workpiece circular arc face fixture for processing.

Background technology

In automobile brake field, use current vortex buffer as complemental brake system.Current vortex buffer mainly comprises rotor, stator and stator support, wherein, stator is mainly comprised of a plurality of iron cores and the coil being wrapped on iron core, the structure of iron core as depicted in figs. 1 and 2, during processing iron core, need to be at the corresponding section of iron core processing three arc surface A, B and C, at present, how single iron core is carried out to arc surface processing, working (machining) efficiency is low.

In the Chinese utility model patent that is CN203171310U at Granted publication number, a kind of workpiece milling arc surface fixture is disclosed, comprise circular base plate, in a side of circular base plate around being circumferentially evenly equipped with a plurality of semi-circular recesses, described fixture also comprises a plurality of pressing plates corresponding with semi-circular groove, on each pressing plate, there is equally semi-circular recesses, pressing plate is to be fixedly assemblied in circular base plate by pin, semi-circular recesses on pressing plate and the corresponding installing hole that is formed for installing workpiece of semi-circular recesses in circular base plate, during fixation workpiece, by workpiece corresponding be placed in installing hole, then rotate and be arranged on the bolt on pressing plate, by bolt, corresponding the fixing of workpiece clamped, then the rotating shaft being coaxially fixedly installed with circular base plate is fixed on machine tool chief axis, by machine tool chief axis, drive fixture and workpiece to rotate, the arc surface processing of realization to workpiece.

Although above-mentioned workpiece milling arc surface fixture can carry out the processing of arc surface to a plurality of workpiece simultaneously, but this fixture mainly relies on the bolt being arranged on pressing plate by the fixing clamping of workpiece when work, bolt immediate roof is pressed on workpiece, so, when turn nut is during with fastening workpiece, nut will apply turning effort power at surface of the work, and this active force easily damages to surface of the work, and then affect the quality of workpiece.

Utility model content

The purpose of this utility model is to provide a kind of workpiece circular arc face fixture for processing, easily destroys the technical problem of surface of the work while relying on the bolt workpiece pressing of spinning on pressing plate in prior art to solve.

For achieving the above object, the technical scheme of workpiece circular arc face fixture for processing provided by the utility model is: workpiece circular arc face fixture for processing, comprise circular base plate, on one side of circular base plate around circumferentially there being uniformly at intervals a plurality of grooves for card engaging workpiece, described fixture also comprises pressure strip, pressure strip has for top corresponding to workpiece corresponding position presses to press the top splenium of workpiece towards described groove, described fixture also comprises for pressing at pressure strip in workpiece direction and being assemblied in described circular base plate so that the threaded fastener of pressure strip workpiece pressing pressure strip is fastening.

Described pressure strip be for at least two shared pressure strips that groove is corresponding in circular base plate, share and on pressure strip, to have for the top splenium described at least two of corresponding top pressure respectively of the workpiece with at least two grooves described in corresponding being installed on.

Described shared pressure strip is for the strip corresponding with adjacent two grooves, and the shared pressure strip of strip has the top splenium described in two.

Described top splenium is the top belling piece convexing with on pressure strip, and top belling piece has for the top pressure surface with top, workpiece corresponding position press contacts.

Described top pressure surface is arc surface.

Described threaded fastener is the movable fastening bolt on pressure strip that is installed on, in described pressure strip and circular base plate, offer respectively for the bolt mounting holes corresponding with described fastening bolt, in described circular base plate, between adjacent two grooves, have protuberance, the bolt mounting holes correspondence in described circular base plate is opened on described protuberance.

On a side that is evenly equipped with described groove in described circular base plate, convex with the annular boss coaxially arranged with described circular base plate, described groove is for being opened in the open-topped groove on described annular boss along described circular base plate is radially corresponding, and groove has two notches in the parallel both sides cell wall extending and the corresponding inner and outer circumferential surfaces that is arranged at annular boss.

Usefulness of the present utility model is: fixture provided by the utility model in use, workpiece to be processed is placed in to the groove of circular base plate, again pressure strip is pressed on workpiece, finally by threaded fastener, pressure strip and circular base plate is tightened to assembling so that pressure strip workpiece pressing in pressure strip workpiece pressing direction.Because in clamping work pieces process, pressure strip only moves up in workpiece pressing side, like this, top splenium on pressure strip only applies clamping force to workpiece in workpiece pressing direction, top splenium can not apply turning effort power to surface of the work, and then under guaranteeing the prerequisite of Work-sheet pressing, avoid surface of the work to damage, guarantee the crudy to workpiece.And, in using the process of this clamp workpiece, the main location that relies on the groove realization in circular base plate to make progress in fixture week to workpiece, rely on the holding workpiece of pressure strip and groove to realize the clamping and positioning that workpiece is made progress in clamp shaft simultaneously, and the clamping force that pressure strip applies to workpiece also makes to produce enough large frictional force to realize the location that workpiece is made progress in fixture footpath between workpiece and groove and workpiece and the corresponding side surface of pressure strip, so, groove by pressure strip and circular base plate is realized the location to workpiece on six-freedom degree, effectively guaranteed the location that clamps to workpiece.

Further, when pressure strip is use, be used for and at least two shared pressure strips that groove is corresponding, can reduce like this pressure strip number, simplify the structure of fixture.

Further, shared pressure strip is the strip corresponding with adjacent two grooves, and when the two top spleniums that share pressure strip form two fulcrums to sharing pressure strip during respectively with corresponding two workpiece top interference fit, guarantee to share pressure strip the normal top of associated workpiece is pressed, there will not be omission.

Further, using the top belling piece being convexly equipped with on pressure strip as top splenium, can, so that the contact area of pressure strip and workpiece is less, guarantee the top pressure effect of pressure strip to workpiece like this.

Further, fastening structure adopts threaded fastener, is convenient to like this mounting or dismounting.

Further, groove design is become to groove, can in clamped one time process, to the inside and outside two ends of workpiece, carry out the processing of arc surface so simultaneously, and then can guarantee the axiality of corresponding arc surface, improve machining accuracy.

Accompanying drawing explanation

Fig. 1 is the stereogram of the iron core of existing current vortex buffer;

Fig. 2 is the side view of iron core shown in Fig. 1;

Fig. 3 is workpiece circular arc face fixture for processing clamping provided by the utility model view during iron core as shown in Figure 1;

Fig. 4 is the perspective view of circular base plate in Fig. 3;

Fig. 5 is the side view of circular base plate shown in Fig. 3;

Fig. 6 is the perspective view of pressure strip in Fig. 3.

The specific embodiment

As shown in Figures 3 to 6, a kind of embodiment of workpiece circular arc face fixture for processing, fixture in this embodiment comprises circular base plate 1, one side of circular base plate 1 convexes with the round platform 14 for the corresponding coaxial clamping of the chuck on lathe, another side convexes with the annular boss coaxially arranged with circular base plate, on the side of annular boss around the groove 11 that is circumferentially useful on uniformly at intervals card engaging workpiece 4, groove 11 is the groove along disk diameter to 1 extension, groove has bottom land, two notches in the parallel both sides cell wall extending and the corresponding inner and outer circumferential surfaces that is arranged at annular boss, herein for guaranteeing to reduce machining accuracy under the prerequisite supporting, at the bottom land place of groove, also offer the lower groove 15 radially extending along circular base plate equally, lower groove 15 is positioned at the width that bottom land centre position place and its width are less than groove 11.

Described fixture also comprises pressure strip 2, pressure strip 2 has for pressing to press the top splenium of workpiece towards groove with the corresponding top, corresponding position that is installed on the workpiece 4 of groove 11, top splenium is the top belling piece 21 convexing with on pressure strip 2, top belling piece has for the top pressure surface with workpiece 4 top, corresponding position press contacts, and top pressure surface is herein arc surface.For adapting to, produce in enormous quantities, and reduce number of parts, pressure strip 2 be herein for at the bottom of circular discs on shared pressure strip corresponding to adjacent two grooves, this shared pressure strip is strip, and this shared pressure strip have two respectively corresponding top be pressed in two top belling pieces 21 on workpiece.

Described fixture also comprises for pressing at pressure strip 2 in workpiece direction and being assemblied in circular base plate 1 so that the threaded fastener of pressure strip 2 workpiece pressings 4 pressure strip 2 is fastening, this threaded fastener is the movable fastening bolt 3 on pressure strip 2 that is installed on, on pressure strip 2, offer for the upper bolt mounting holes 22 corresponding with fastening bolt 3, and in circular base plate 1, offer for the lower bolt mounting holes 13 corresponding with fastening bolt 3, because pressure strip 2 is the shared pressure strip corresponding with adjacent two grooves 11, upper bolt mounting holes 22 is arranged on to the centre of pressure strip, and between adjacent two grooves 11, be provided with protuberance 12 on the annular boss of circular base plate 1, lower bolt mounting holes is being opened on protuberance 12 so that lower bolt mounting holes 13 is convenient to corresponding with the upper bolt mounting holes on pressure strip 2 of correspondence, and then be convenient to install fastening bolt 3.

During use, the corresponding outer peripheral face that clamps the round platform 14 of circular base plate 1 of chuck with lathe, then a plurality of workpiece 4 are packed in the groove 11 of circular base plate 1 successively, fastening bolt 3 correspondences are installed in the upper bolt mounting holes 22 of pressure strip 2 and the lower bolt mounting holes 13 of circular base plate 1 again, screw fastening bolt 3, pressure strip 2 and circular base plate 1 coordinate clamping work pieces 4, and then workpiece 4 is carried out to arc surface processing.State in the use in the process of clamp workpiece, the location that workpiece was made progress in fixture week is realized in the main two sides of circular base plate upper groove 11 that rely on, simultaneously, rely on the bottom land holding workpiece of pressure strip and groove 11 to realize the clamping and positioning that workpiece is made progress in clamp shaft, and the clamping force that pressure strip applies to workpiece also makes to produce between the groove bottom of workpiece and circular base plate and workpiece and the corresponding side surface of pressure strip the location that enough large frictional force makes progress in fixture footpath to workpiece with realization, so, groove by pressure strip and circular base plate is realized the location to workpiece on six-freedom degree, effectively guaranteed the location that clamps to workpiece.

The fixture providing in the present embodiment is suitable for being applied on lathe workpiece is carried out to the turning processing of arc surface, is guaranteeing under the prerequisite of turning accuracy, and clamped one time can a plurality of workpiece of turning, and working (machining) efficiency is higher.

In above-described embodiment, pressure strip is the shared pressure strip corresponding with adjacent two grooves, in other embodiments, each pressure strip also can be only corresponding with single groove, the top splenium of now pressing with top, workpiece corresponding position on pressure strip will be positioned at the place, centre position of pressure strip, and the bolt mounting holes corresponding with fastening bolt is arranged on to the two ends of pressure strip.

In above-described embodiment, shared pressure strip is only corresponding with adjacent two grooves, in other embodiments, also can be according to actual conditions needs, the corresponding with the groove above with three greatly of pressure strip design will be shared, accordingly, need to share on pressure strip, be provided with more than three for the top splenium corresponding with workpiece.

In above-described embodiment, top splenium is the top belling piece convexing with on pressure strip, in other embodiments, and the detent that top splenium also can be provided with for pressure strip.

In above-described embodiment, threaded fastener is fastening bolt, in other embodiments, threaded fastener can be also clamp nut, now, can on the boss of circular base plate, correspondence be convexly equipped with the column that top has external thread section, during installation, pressure strip correspondence is sleeved on column, and by the corresponding spinning of clamp nut on column, in screwing the process of clamp nut, can realize equally the object of clamping work pieces in the process of fastening assembling pressure strip and circular base plate.

In above-described embodiment, by the groove design in circular base plate, by groove, be mainly for long with length and need at two ends, the workpiece of Machining Arc face is corresponding respectively, and the parallel extension of the both sides cell wall of groove be also for the profile with workpiece identical corresponding so that workpiece is positioned.In other embodiments, the groove in circular base plate also can be for coincideing so that the semi-circular recesses that workpiece is positioned or V-type groove with corresponding workpiece profile.

Below in conjunction with the concrete occupation mode of processing the example of iron core as shown in Figure 1 and Figure 2 and illustrate the fixture that above-described embodiment provides:

Step 1: fixture is arranged on C630-1 lathe chuck, with the round platform periphery of chuck clamping circular base plate;

Step 2: 16 iron cores are pressed into respectively in the groove of circular base plate; Rotate circular base plate, with the gag lever post being arranged on lathe cutter head, 16 iron core peripheries are adjusted on same excircle, then screw fastening bolt, rely on pressure strip to compress two adjacent iron cores simultaneously;

Step 3: start lathe, in clamped one time, out A face and the C face of iron core of turning, guarantees axiality requirement, then processes the B face of iron core one side wing edge;

Step 4: unclamp fastening bolt, take out respectively iron core, then iron core is turned, be again pressed in the evil groove of circular base plate, rotate circular base plate, with the gag lever post being arranged on lathe cutter head, 16 iron core peripheries are adjusted on same excircle; Screw fastening bolt, rely on pressure strip to compress two adjacent iron cores simultaneously;

Step 5: start lathe, the turning B face on the iron core opposite side edge of a wing out in clamped one time; So far iron core turning processing all completes.

The clamping principle of above-mentioned fixture is clear, and structural design is ingenious simple, can effectively meet low-cost rapid processing production requirement in enormous quantities, easy to loading and unloading simple, clamps solid and reliable.

Claims (7)

1. workpiece circular arc face fixture for processing, comprise circular base plate, on one side of circular base plate around circumferentially there being uniformly at intervals a plurality of grooves for card engaging workpiece, it is characterized in that: described fixture also comprises pressure strip, pressure strip has for top corresponding to workpiece corresponding position presses to press the top splenium of workpiece towards described groove, and described fixture also comprises for pressing at pressure strip in workpiece direction and being assemblied in described circular base plate so that the threaded fastener of pressure strip workpiece pressing pressure strip is fastening.
2. workpiece circular arc face fixture for processing according to claim 1, it is characterized in that: described pressure strip for for at least two shared pressure strips that groove is corresponding in circular base plate, share and on pressure strip, to have for the top splenium described at least two of corresponding top pressure respectively of the workpiece with at least two grooves described in corresponding being installed on.
3. workpiece circular arc face fixture for processing according to claim 2, is characterized in that: described shared pressure strip is for the strip corresponding with adjacent two grooves, and the shared pressure strip of strip has the top splenium described in two.
4. according to the workpiece circular arc face fixture for processing described in claim 1 or 2 or 3, it is characterized in that: described top splenium is the top belling piece convexing with on pressure strip, and top belling piece has for the top pressure surface with top, workpiece corresponding position press contacts.
5. workpiece circular arc face fixture for processing according to claim 4, is characterized in that: described top pressure surface is arc surface.
6. according to the workpiece circular arc face fixture for processing described in claim 1 or 2 or 3, it is characterized in that: described threaded fastener is the movable fastening bolt on pressure strip that is installed on, in described pressure strip and circular base plate, offer respectively for the bolt mounting holes corresponding with described fastening bolt, in described circular base plate, between adjacent two grooves, have protuberance, the bolt mounting holes correspondence in described circular base plate is opened on described protuberance.
7. according to the workpiece circular arc face fixture for processing described in claim 1 or 2 or 3, it is characterized in that: on the side that is evenly equipped with described groove in described circular base plate, convex with the annular boss coaxially arranged with described circular base plate, described groove is for being opened in the open-topped groove on described annular boss along described circular base plate is radially corresponding, and groove has two notches in the parallel both sides cell wall extending and the corresponding inner and outer circumferential surfaces that is arranged at annular boss.
CN201320836406.4U 2013-12-18 2013-12-18 Workpiece arc surface machining fixture CN203843568U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320836406.4U CN203843568U (en) 2013-12-18 2013-12-18 Workpiece arc surface machining fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320836406.4U CN203843568U (en) 2013-12-18 2013-12-18 Workpiece arc surface machining fixture

Publications (1)

Publication Number Publication Date
CN203843568U true CN203843568U (en) 2014-09-24

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526344A (en) * 2014-12-05 2015-04-22 苏州佳祺仕信息科技有限公司 Station detecting and positioning rotating tray
CN105834810A (en) * 2016-06-21 2016-08-10 山东豪迈机械制造有限公司 Intersecting curved surface machining tooling and machining method
CN106984947A (en) * 2017-04-14 2017-07-28 北京航星机器制造有限公司 The machining process of journal stirrup part arc profile
CN107838817A (en) * 2017-10-13 2018-03-27 歌尔股份有限公司 Product orientation mechanism and sandblasting mechanism
CN107962511A (en) * 2016-10-19 2018-04-27 富鼎电子科技(嘉善)有限公司 Fixing device
CN109396886A (en) * 2018-10-30 2019-03-01 武汉船用机械有限责任公司 The processing tool and processing method of stator class part
CN109773214A (en) * 2019-01-31 2019-05-21 武汉船用机械有限责任公司 Blade turning tool and method for turning

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526344A (en) * 2014-12-05 2015-04-22 苏州佳祺仕信息科技有限公司 Station detecting and positioning rotating tray
CN105834810A (en) * 2016-06-21 2016-08-10 山东豪迈机械制造有限公司 Intersecting curved surface machining tooling and machining method
CN105834810B (en) * 2016-06-21 2018-08-03 山东豪迈机械制造有限公司 Mutually pass through the processing tool and processing method of curved surface
CN107962511B (en) * 2016-10-19 2019-09-20 富鼎电子科技(嘉善)有限公司 Fixed device
CN107962511A (en) * 2016-10-19 2018-04-27 富鼎电子科技(嘉善)有限公司 Fixing device
CN106984947A (en) * 2017-04-14 2017-07-28 北京航星机器制造有限公司 The machining process of journal stirrup part arc profile
CN107838817A (en) * 2017-10-13 2018-03-27 歌尔股份有限公司 Product orientation mechanism and sandblasting mechanism
CN109396886A (en) * 2018-10-30 2019-03-01 武汉船用机械有限责任公司 The processing tool and processing method of stator class part
CN109773214A (en) * 2019-01-31 2019-05-21 武汉船用机械有限责任公司 Blade turning tool and method for turning

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