CN204868451U - Thin wall part external grinding equipment for motor - Google Patents

Thin wall part external grinding equipment for motor Download PDF

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Publication number
CN204868451U
CN204868451U CN201520557467.6U CN201520557467U CN204868451U CN 204868451 U CN204868451 U CN 204868451U CN 201520557467 U CN201520557467 U CN 201520557467U CN 204868451 U CN204868451 U CN 204868451U
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CN
China
Prior art keywords
expansion
workpiece
abrasive band
cover
pressing plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520557467.6U
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Chinese (zh)
Inventor
黄云凡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd
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CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd
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Publication date
Application filed by CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd filed Critical CHONGQING SHANGZE MECHANICAL AND ELECTRICAL Co Ltd
Priority to CN201520557467.6U priority Critical patent/CN204868451U/en
Application granted granted Critical
Publication of CN204868451U publication Critical patent/CN204868451U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The patent discloses a thin wall part external grinding equipment for motor, including frame, anchor clamps, fix three -jaw chuck in the frame, drive three -jaw chuck's headstock and grinding apparatus, wherein anchor clamps include the dabber, expand cover, clamp plate and gland nut, the spindle sets up screw thread section and circle conic section, screw thread section, gland nut and screw thread section thread connection are close to to the one end that circle conic section diameter is little, expanding and overlapping for the bloated cover of polyurethane, the interior working face of the cover that expands sets up to the bell mouth, and the round conic section's of the tapering of bell mouth and dabber tapering matches, the clamp plate is located gland nut and expands between the cover, and the clamp plate is the annular, and the clamp plate internal diameter is less than bloated cover internal diameter and is greater than the big footpath of screw thread section, and the clamp plate external diameter is greater than the cover external diameter that expands, the grinding apparatus then including fix action wheel in the frame, from the driving wheel, lie in between the two take -up pulley and abrasive band, the take -up pulley lies in the abrasive band inboard, the abrasive band lies in the cover top of expanding, the take -up pulley highly be higher than the action wheel. The design of this patent, manufacturing simply can be applicable to small -batch production.

Description

Motor thin-walled parts cylindrical grinding equipment
Technical field
The utility model relates to the production equipment of motor component processing, is specifically related to motor thin-walled parts cylindrical grinding equipment.
Background technology
Motor refers to a kind of calutron realizing electric energy conversion according to the law of electromagnetic induction or transmit, and represents in circuit with alphabetical M, and its Main Function produces driving torque, as the power source of electrical appliance or various machinery, motor has a lot of thin-walled parts.
It is generally acknowledged, in housing component, sleeve member, annular element, dish, flat part, shaft forgings, when the ratio of part wall thickness and internal diameter radius of curvature (or overall size) is less than 1:20, be called thin-walled parts.The common feature of this kind of part is that rigidity is low, and complex structure adds and very easily causes error distortions or workpiece flutter man-hour, reduces the machining accuracy of workpiece.
Existing thin-walled parts cylindrical grinding processing adopts grinding machine to process usually, but grinder structure mainly cuts emery wheel, regulating wheel and work support, and three mechanisms are formed, and complex structure, cost is high, is not suitable for small lot or single-piece production.
Add man-hour at the cylindrical grinding of cylindrical bore workpiece in prior art, usually use the grip device of following three types;
1. mandrel, mandrel directly coordinates with inner hole of workpiece, makes Workpiece fixing, and mandrel, with very little tapering, facilitates clamping and the dismounting of workpiece.Because workpiece and mandrel are interference fit, workpiece is when clamping and dismounting, and damage relatively more serious to inner hole of workpiece and mandrel, mandrel is short for service life; Mandrel size is certain, high to the dimension precision requirement of inner hole of workpiece, to ensure there is suitable clamping force to workpiece; Mandrel is with tapering, and the position error of workpiece is larger, and Workpiece Machining Accuracy is low.
2. soft three-jaw, by soft three-jaw clamping work pieces endoporus, carries out workpiece end face or Excircle machining.Soft three-jaw positioning precision is low, and clamping force easily makes workpiece deformation.
3. the swollen tire of liquid plastics, by the filling of liquid plastics between inner hole of workpiece and fixture by Workpiece clamping.Liquid plastics is melted to boil formed by Corvic, dibutyl carboxylic acid, calcium stearate, there is certain consistence and viscosity, but during the gap between workpiece and fixture comparatively large (being greater than 0.05mm), liquid plastics is easy to seepage occurs, the clamping force that fixture passes to workpiece is also very unstable, or cannot clamping work pieces, and therefore this fixture design itself, processing and manufacturing are complicated, manufacturing cost is high, is difficult to the work pieces process that batch is little.
Utility model content
The utility model is intended to provide a kind of motor thin-walled parts cylindrical grinding equipment, and the design of its grip device, manufacture simply, can be applicable to small lot or single-piece production.
Motor in base case thin-walled parts cylindrical grinding equipment, comprise frame, fixture, be fixed on scroll chuck in frame and grinding tool, wherein fixture comprises mandrel, expansion set, pressing plate and clamp nut, mandrel is arranged thread segment and conical section, the little one end of conical section diameter near thread segment, clamp nut and thread segment thread connection; Expansion set is polyurethane expansion set, and the inner working face of expansion set is set to bellmouth, and the tapering of bellmouth mates with the tapering of mandrel conical section; Pressing plate is between clamp nut and expansion set, and pressing plate is annular, and pressing plate internal diameter is less than expansion set internal diameter and is greater than the large footpath of thread segment, and pressing plate external diameter is greater than expansion set external diameter; Grinding tool then comprises the driving wheel be fixed in frame, the driven pulley flushed with driving wheel, is positioned at regulating wheel between the two and abrasive band, and regulating wheel is positioned at inside abrasive band, and abrasive band is positioned at above expansion set, and the height of regulating wheel is higher than driving wheel.
Frame is for supporting scroll chuck and fixture, and scroll chuck can clamping device, and then keeps stable when workpiece is contacted with grinding tool, and workpiece contacts with grinding tool, thus carries out the processing of cylindrical grinding.
Mandrel not only plays supporting role, can also fix clamping with lathe; Wherein thread segment and clamp nut form screw thread pair, and the circumference realizing clamp nut compresses, and conical section is then mated with expansion set, and expansion set is expanded thus swelling workpiece.
Expansion set is polyurethane expansion set, polyurethane expansion set is filled in inner hole of workpiece equably, make workpiece uniform stressed in process, improve Workpiece Machining Accuracy, because inner hole of workpiece is out rough turn after workpiece quenching, inner hole wall is very coarse, when this just causes common expansion set even inflation, workpiece deforms under its effect, and polyurethane expansion set its rigidity is less than workpiece, can adapt to the inner hole wall that workpiece is coarse; Secondly, the elastic performance of polyurethane expansion set self makes fixture with adaptive ability, can to the heart while playing cushioning effect, reduces because of clamping, grinding and the workpiece deformation that brings; Again, functional (effect of elastomer to alternate stress shows obvious hysteresis to the absorbing of polyurethane expansion set.The part energy of External Force Acting is consumed in the interior friction of elastomeric molecule in this course, be transformed into heat energy, this characteristic is called the absorbing performance of material, also referred to as energy absorption or damping capacity), the vibration produced under can absorbing the effect of grinding tool cutting force (particularly radial cutting force), reduce the workpiece deformation brought because of vibration, improve the machining accuracy of workpiece; In addition, compared with common expansion set, the structure of polyurethane expansion set is simple, and handling ease, cost is low.
Expansion set is enclosed within conical section, screws clamp nut and expansion set can be made to move axially and the swelling workpiece that expands.
Under the promotion of clamp nut, compress expansion set end face during pressing plate work, thus expansion set is evenly moved axially, thus even inflation swelling workpiece; Pressing plate internal diameter is less than expansion set internal diameter and is greater than the large footpath of thread segment, and pressing plate external diameter is greater than expansion set external diameter, ensures that pressing plate can either slide on thread segment, can cover expansion set end face again, thus compress expansion set, make expansion set even inflation.
Grinding tool then comprises the driving wheel be fixed in frame, the driven pulley flushed with driving wheel, is positioned at regulating wheel between the two and abrasive band, and regulating wheel is positioned at inside abrasive band, and abrasive band is positioned at above expansion set, and the height of regulating wheel is higher than driving wheel; Abrasive particle on abrasive band has stronger cutting power than emery wheel abrasive particle, so its grinding efficiency is very high, driving wheel, driven pulley are for supporting abrasive band, driving wheel drives abrasive band to rotate, and improve abrasive band to the grinding force of workpiece, regulating wheel makes abrasive band be close to workpiece all the time simultaneously, the tensioning degree in abrasive band can also be ensured, and driving wheel, driven pulley and regulating wheel are all positioned at inside abrasive band, therefore inside abrasive band, abrasive particle is not set, substantially increases the service life in driving wheel, driven pulley, regulating wheel and abrasive band; Can according to different processing request, the height of adjustment regulating wheel, thus the grinding force in adjustment abrasive band; Abrasive band is positioned at above expansion set, and the break flour produced after can ensureing sbrasive belt grinding workpiece directly drops in frame, and can not pile up in abrasive band, is beneficial to protection abrasive band and is not damaged, improve abrasive band service life.
And the grinding tool of this programme is compared to grinding machine of the prior art etc., structure is simple, and cost is low.
Advantage of the present utility model also comprises:
1., at the outer bowlder of processing column shape bore work, make the machining accuracy of workpiece can ensure to reach more than 6 grades.The breathing scope of expansion set cylindrical, at more than 0.5mm, assembles the defects such as difficulty, workpiece processing quality be unstable to the higher requirement of inner hole of workpiece dimensional accuracy and workpiece and grip device when avoiding direct mandrel or tire swollen with liquid plastics.
2. expansion set and the coupling face of workpiece are that nearly full circle face contacts, and avoid positioning precision low, clamping force when adopting soft three-jaw processes and too concentrate and easily make the defect of workpiece deformation.
3. structure is simple, and work-handling is convenient, and workpiece both ends of the surface and cylindrical can complete under clamped one time, ensure that the machining accuracy of workpiece, improve work pieces process efficiency, and the processing being specially adapted to small lot or single-piece workpiece uses.
Based on the first preferred version of scheme, expansion set circumference is evenly equipped with dilatation joint, and dilatation joint extends in the middle part of expansion set from expansion set end face; Ensure the length being shorter in length than expansion set of dilatation joint, thus be beneficial to expansion set expansion swelling.
On the basis of the first preferred version, adjacent dilatation joint opening direction is contrary; Ensure the symmetrical of dilatation joint, make the even swelling of expansion set, the globality of expansion set can also be ensured.
On the basis of the first preferred version, also comprise spanner, described clamp nut is circumferentially with tooth, and on spanner, then correspondence is provided with teeth groove.
On the basis of the first preferred version, the tapering of described expansion set inner conical surface is between for 1:15 ~ 1:10; The selection of mandrel tapering and expansion set tapering, can ensure there are enough clamping forces to workpiece, and be not easy to make the integrality of workpiece to be damaged.
On the basis of the first preferred version, between thread segment and conical section, be provided with escape; Facilitate the tool backlash movement after thread segment completion of processing, facilitate the processing of mandrel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model motor thin-walled parts cylindrical grinding apparatus embodiments;
Fig. 2 is the structural representation of the utility model motor thin-walled parts cylindrical grinding apparatus embodiments;
Fig. 3 is the structural representation of expansion set in the utility model motor thin-walled parts cylindrical grinding apparatus embodiments.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: mandrel 1, expansion set 2, clamp nut 3, conical section 11, thread segment 12, pressing plate 4, workpiece 5, abrasive band 6, driving wheel 7, driven pulley 8, regulating wheel 81, frame 9.
Embodiment is substantially as shown in Figure 1:
Motor thin-walled parts cylindrical grinding equipment, comprise frame 9, fixture, be fixed on scroll chuck in frame 9 and grinding tool, grinding tool then comprises the driving wheel 7 be fixed in frame 9, the driven pulley 8 flushed with driving wheel 7, is positioned at regulating wheel 81 between the two and abrasive band 6, tensioning 81 is taken turns and is positioned at inside abrasive band 6, abrasive band 6 is positioned at above expansion set 2, and regulating wheel 81 degree is higher than driving wheel 7.
As shown in Figure 2, fixture comprises mandrel 1, expansion set 2, pressing plate 4 and clamp nut 3, mandrel 1 is arranged thread segment 12 and conical section 11, the little one end of conical section 11 diameter near thread segment 12, clamp nut 3 and thread segment 12 thread connection; Expansion set 2 is polyurethane expansion set, and the inner working face of expansion set 2 is set to bellmouth, and the tapering of bellmouth mates with the tapering of mandrel 1 conical section 11; Pressing plate 4 is between clamp nut 3 and expansion set 2, and pressing plate 4 is annular, and pressing plate 4 internal diameter is less than expansion set 2 internal diameter and is greater than the large footpath of thread segment 12, pressing plate 4 external diameter is greater than expansion set 2 external diameter, also comprises spanner, not shown, clamp nut 3 is circumferentially with tooth, and on spanner, then correspondence is provided with teeth groove.
Mandrel 1 material used is No. 45 steel, and expansion set 2 material is polyurethane, and pressing plate 4 material is Q235A, and clamp nut 3 material is steel 45.Each part of grip device does not all need to carry out independent heat treatment.The taper angle of the conical section 11 on mandrel 1 and the inner conical surface tapering of expansion set 2 are set to 1:13.
The machining benchmark of the conical section 11 of mandrel 1 is the centre bore at mandrel 1 two ends; The inner conical surface of expansion set 2 and conical section 11 facing-up of mandrel 1; After mandrel 1, expansion set 2, pressing plate 4 and clamp nut 3 are assembled by accompanying drawing 2, with mandrel 1 two ends centre bore for benchmark, the cylindrical of processing expansion set 2; Expansion set 2 is split out, as shown in Figure 3, at the circumferentially respectively well-balanced Di Kai tri-road dilatation joint 21 at the two ends of expansion set 2, the length 10 ~ 30mm shorter in the length of expansion set 2 of dilatation joint 21.
Mandrel 1, expansion set 2, pressing plate 4 and clamp nut 3 are assembled by accompanying drawing 2, unclamps clamp nut 3, expansion set 2 is shunk; By the correct position of workpiece 5 benchmark inner hole sleeve at this device, with clamp nut 3 axial compression pressing plate 4, along mandrel 1 axial compression expansion set 2, make expansion set 2 distending, by workpiece 5 swelling.According to the thrust size of the requirement determination clamp nut 3 of workpiece 5 body structures and processing, make workpiece 5 have enough tension forces, and ensure that workpiece 5 is indeformable.Then start driving wheel 7, workpiece 5 and abrasive band 6 rub, and after workpiece 5 processes, close driving wheel 7, are unclamped by clamp nut 3, expansion set 2 is shunk, is unloaded by workpiece 5.

Claims (6)

1. motor thin-walled parts cylindrical grinding equipment, comprise frame, fixture, be fixed on scroll chuck in frame and grinding tool, wherein fixture comprises mandrel, expansion set, pressing plate and clamp nut, it is characterized in that: mandrel is arranged thread segment and conical section, the little one end of conical section diameter near thread segment, clamp nut and thread segment thread connection; Expansion set is polyurethane expansion set, and the inner working face of expansion set is set to bellmouth, and the tapering of bellmouth mates with the tapering of mandrel conical section; Pressing plate is between clamp nut and expansion set, and pressing plate is annular, and pressing plate internal diameter is less than expansion set internal diameter and is greater than the large footpath of thread segment, and pressing plate external diameter is greater than expansion set external diameter; Grinding tool then comprises the driving wheel be fixed in frame, the driven pulley flushed with driving wheel, is positioned at regulating wheel between the two and abrasive band, and regulating wheel is positioned at inside abrasive band, and abrasive band is positioned at above expansion set, and the height of regulating wheel is higher than driving wheel.
2. motor thin-walled parts cylindrical grinding equipment according to claim 1, it is characterized in that: expansion set circumference is evenly equipped with dilatation joint, dilatation joint extends in the middle part of expansion set from expansion set end face.
3. motor thin-walled parts cylindrical grinding equipment according to claim 2, is characterized in that: adjacent dilatation joint opening direction is contrary.
4. motor thin-walled parts cylindrical grinding equipment according to claim 2, it is characterized in that: also comprise spanner, described clamp nut is circumferentially with tooth, and on spanner, then correspondence is provided with teeth groove.
5. motor thin-walled parts cylindrical grinding equipment according to claim 2, is characterized in that: the tapering of described expansion set inner conical surface is between for 1:15 ~ 1:10.
6. motor thin-walled parts cylindrical grinding equipment according to claim 2, is characterized in that: be provided with escape between thread segment and conical section.
CN201520557467.6U 2015-07-29 2015-07-29 Thin wall part external grinding equipment for motor Expired - Fee Related CN204868451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520557467.6U CN204868451U (en) 2015-07-29 2015-07-29 Thin wall part external grinding equipment for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520557467.6U CN204868451U (en) 2015-07-29 2015-07-29 Thin wall part external grinding equipment for motor

Publications (1)

Publication Number Publication Date
CN204868451U true CN204868451U (en) 2015-12-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112709A (en) * 2016-08-25 2016-11-16 浙江通力重型齿轮股份有限公司 Adjustable outer core grinding axle clamp for machining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112709A (en) * 2016-08-25 2016-11-16 浙江通力重型齿轮股份有限公司 Adjustable outer core grinding axle clamp for machining

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20160729

CF01 Termination of patent right due to non-payment of annual fee