CN207206140U - Brake drum honing fixture and honing system - Google Patents

Abstract

Honing technique field is the utility model is related to, more particularly, to a kind of brake drum honing fixture and honing system.The brake drum honing fixture, including clamp body, fixed cover, floating buss and clamp system；Fixed cover is fixed on clamp body, and floating buss is arranged in fixed cover；Floatation element is provided between floating buss and fixed cover, for enabling floating buss to be relatively moved in radial directions relative to fixed cover；Clamp system is used to clamp workpiece, so that workpiece can keep geo-stationary with floating buss；Clamp system includes push-and-pull tiltedly set and multiple clamping jaws, and push-and-pull is tiltedly covered for making the radial direction that multiple clamping jaws tiltedly cover along push-and-pull open or collapse.The honing system, including described brake drum honing fixture.The utility model ensure that the machining accuracy of endoporus, improve the crudy of brake drum.

Description

Brake drum honing fixture and honing system

Technical field

Honing technique field is the utility model is related to, more particularly, to a kind of brake drum honing fixture and honing system.

Background technology

Automobile brake drum endoporus new process for processing is to use honing technique.Because the endoporus aperture of brake drum is big, so needing Corresponding honing head is used to carry out Honing process, and the weight of corresponding honing head is generally heavier, using honing head and master During axle floating connection, the machining accuracy of endoporus is easily influenceed.

Utility model content

The purpose of this utility model is to provide a kind of brake drum honing fixture and honing system, to solve in the prior art When existing use honing head is connected with spindle floating, the technical problem of the machining accuracy of endoporus is easily influenceed.

The utility model provides a kind of brake drum honing fixture, including clamp body, fixed cover, floating buss and clamping machine Structure；

The fixed cover is fixed on the clamp body, and the floating buss is arranged in the fixed cover；The floating Floatation element is provided between axle sleeve and the fixed cover, for enabling the floating buss relative to the fixed cover in footpath Relatively moved on to direction；

The clamp system is used to clamp workpiece, so that the workpiece can keep geo-stationary with the floating buss； The clamp system includes push-and-pull tiltedly set and multiple clamping jaws, and the push-and-pull is tiltedly covered for making multiple clamping jaws oblique along the push-and-pull The radial direction of set is opened or collapsed.

Further, the clamp system also includes position-limiting tube, and the circumference of the position-limiting tube offers multiple spacing holes, institute Clamping jaw is stated to be installed in the position-limiting tube；The push-and-pull tiltedly covers the inclined plane part of clamping jaw described in push-and-pull, can make the hook of the clamping jaw Portion stretches out or the spacing hole of retracting.

Further, the push-and-pull tiltedly covers tapered；The circumferential laying that multiple clamping jaws tiltedly cover along the push-and-pull, and the folder Pawl tiltedly covers to engage with the push-and-pull to be slidably connected.

Further, the inclined plane part of the clamping jaw has chuck, has on the conical surface that the push-and-pull tiltedly covers along cone element The neck of extension, the chuck are limited in the neck；

Or, the inclined plane part of the clamping jaw has neck, have on the conical surface that the push-and-pull tiltedly covers along cone element extension Chuck, the chuck are limited in the neck.

Further, the clamp system also includes retractor device, for making the push-and-pull tiltedly transport axial direction of the set along itself It is dynamic；

Tiltedly set is fixedly connected the expansion link of the retractor device with the push-and-pull.

Further, the floatation element includes the first floating external member, and the first floating external member is sheathed on the floating On axle sleeve；

The first floating external member includes the first backing plate, the second backing plate, the first ball and the first ball retainer；Described One backing plate, first ball retainer and second backing plate are sheathed on the floating buss successively；First ball Retainer and the first ball are respectively positioned between first backing plate and the second backing plate, and first ball is limited in described first In ball retainer.

Further, the floatation element also includes the second floating external member, and the second floating external member is sheathed on described floating Moving axis is put, and the second floating external member is located at the lower section of the first floating external member；

The second floating external member includes the 3rd backing plate, the 4th backing plate, the second ball and the second ball retainer；Described Three backing plates, second ball retainer and the 4th backing plate are sheathed on the floating buss successively；Second ball Retainer and the second ball are respectively positioned between the 3rd backing plate and the 4th backing plate, and second ball is limited in described second In ball retainer.

Further, multiple first adjustment bolts and multiple second adjustment bolts are distributed with the circumference of the fixed cover；

First adjustment bolt abuts against with first ball retainer, for adjusting the floating of the floating buss Amount；

Second adjustment bolt abuts against with second ball retainer, for adjusting the floating of the floating buss Amount.

Further, in addition to substrate and backing plate, the substrate are installed on the upper of the radial extension of the floating buss End face, the backing plate are installed on the upper surface of the substrate；

The fixed cover is located at the lower section of the radial extension of the floating buss；

Rotation stop pin is installed on the fixed cover, locking is carried out for the rotation to the floating buss；

Alignment pin for positioning workpiece is installed on the substrate.

The utility model additionally provides a kind of honing system, including described brake drum honing fixture.

Compared with prior art, the beneficial effects of the utility model are：

Brake drum honing fixture provided by the utility model, including clamp body, fixed cover, floating buss and clamp system； Fixed cover is fixed on clamp body, and floating buss is arranged in fixed cover；Floating group is provided between floating buss and fixed cover Part, for enabling floating buss to be relatively moved in radial directions relative to fixed cover；Clamp system is used to clamp work Part, so that workpiece can keep geo-stationary with floating buss；Clamp system includes push-and-pull, and tiltedly set and multiple clamping jaws, push-and-pull tiltedly cover For opening the radial direction that multiple clamping jaws tiltedly cover along push-and-pull or collapsing.Honing head and main shaft are replaced by making clamp floating Floating connection, i.e. honing head is rigidly connected with main shaft, the mode that the floating buss of brake drum honing fixture floats, in order to Easily honing head is controlled during honing, so as to ensure the machining accuracy of endoporus, and clamp system tiltedly covered by push-and-pull for The control of clamping jaw, realize the fast assembling-disassembling of folder workpiece.

The honing system that the utility model also provides, including described brake drum honing fixture.Understood based on above-mentioned analysis, The honing system ensure that the machining accuracy of endoporus, improve the crudy of brake drum.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation (section view) of brake drum honing fixture in the utility model embodiment one；

Fig. 2 is the close-up schematic view at A in Fig. 1；

Fig. 3 is the close-up schematic view at B in Fig. 1 (clamping jaw does not clamp workpiece in figure)；

Fig. 4 is that clamping jaw is installed on the schematic diagram that push-and-pull is tiltedly put in the utility model embodiment one；

Fig. 5 is the push-and-pull schematic diagram that tiltedly set links together with pull bar in the utility model embodiment one；

Fig. 6 is the signal that push-and-pull tiltedly covers another visual angle after being linked together with pull bar in the utility model embodiment one Figure；

Fig. 7 is the schematic diagram of clamping jaw in the utility model embodiment one；

Fig. 8 is the schematic diagram at another visual angle of clamping jaw in the utility model embodiment one；

Fig. 9 is the sectional view of position-limiting tube in the utility model embodiment one；

Figure 10 is the structural representation of position-limiting tube in the utility model embodiment one；

Figure 11 is the structural representation of the first ball retainer in the utility model embodiment one；

Figure 12 is the sectional view of the first ball retainer in the utility model embodiment one.

In figure：

101- clamp bodies；102- fixed covers；103- floating busses；104- workpiece；105- push-and-pulls tiltedly cover；106- clamping jaws； 107- cascade rings；108- locating slots；109- substrates；110- backing plates；111- rotation stop pins；112- alignment pins；113- position-limiting tubes；114- Spacing hole；115- inclined plane parts；116- hook portions；117- chuck；118- necks；119- pull bars；120- retractor devices；122- stretches Bar；The backing plates of 123- first；The backing plates of 124- second；The balls of 125- first；The ball retainers of 126- first；The backing plates of 127- the 3rd； The backing plates of 128- the 4th；The balls of 129- second；The ball retainers of 130- second；131- support rims；The adjustment bolts of 132- first； The adjustment bolts of 133- second；134- annular grooves；135- annular boss；136- locking nuts.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Embodiment one

Referring to shown in Fig. 1 to Figure 12, the utility model provides a kind of brake drum honing fixture, including clamp body 101, solid Surely set 102, floating buss 103 and clamp system；Fixed cover 102 is fixed on clamp body 101, and floating buss 103 is arranged in solid Surely in set 102, there is gap between floating buss 103 and fixed cover 102；It is provided between floating buss 103 and fixed cover 102 Floatation element, for enabling floating buss 103 to be relatively moved in radial directions relative to fixed cover 102, that is, Say, enable floating buss 103 that relative movement to occur in the radial direction in fixed cover 102 relative to fixed cover 102；Clamp Mechanism is used to clamp workpiece 104, so that workpiece 104 can keep geo-stationary with floating buss 103；Clamp system includes push-and-pull Tiltedly set 105 and multiple clamping jaws 106, push-and-pull tiltedly cover 105 radial directions for being used to make multiple clamping jaws 106 tiltedly cover 105 along push-and-pull and opened Or collapse.It should be noted that in the embodiment, brake drum is automobile brake drum.

Specifically, clamp body 101 is used to support fixed cover 102, and fixed cover 102 is secured by bolts in clamp body 101 On, in order to improve the stationarity of fixed cover 102 and clamp body 101, avoid fixed cover 102 from radial direction occur on clamp body 101 Planar movement, the outer rim of the lower end of fixed cover 102 have cascade ring 107, and the cascade ring 107 of fixed cover 102 is positioned at clamp body In the locating slot 108 of the upper surface of 101 bodies.Workpiece 104 is clamped by clamp system to be fixed on floating buss 103.

The brake drum honing fixture that the embodiment provides, connected by making clamp floating to replace the floating of honing head and main shaft Connect, i.e., honing head is rigidly connected with main shaft, the mode of the floating of floating buss 103 of brake drum honing fixture, in order in honing Shi Rongyi is controlled to honing head, and so as to ensure the machining accuracy of endoporus, and clamp system tiltedly covers 105 by push-and-pull for folder The control of pawl 106, realize the fast assembling-disassembling of folder workpiece 104.

In the optional scheme of the embodiment, brake drum honing fixture also includes substrate 109 and backing plate 110, and substrate 109 is installed In the upper surface of the radial extension of floating buss 103, backing plate 110 is installed on the upper surface of substrate 109；Fixed cover 102 is located at The lower section of the radial extension of floating buss 103；Rotation stop pin 111 is installed, for floating buss 103 on fixed cover 102 Rotate and carry out locking, that is to say, that prevent in honing process, floating buss 103 turns line around the axis of itself, so by only Ship and resell on another market 111, realize that floating buss 103 can only diametrically be moved；It is provided with substrate 109 for positioning workpiece 104 Alignment pin 112.

Specifically, substrate 109 is bolted to connection with floating axle, and the lower surface of substrate 109 also has ladder Ring 107, the cascade ring 107 of substrate 109 are positioned in the set of floating buss 103.Backing plate 110 is fixed by bolt and substrate 109 Connection.Alignment pin 112 on substrate 109 runs through backing plate 110, and alignment pin 112 stretches out the upper surface of backing plate 110, with realization pair The positioning of brake drum.Workpiece 104 (i.e. brake drum) is positioned over the upper surface of backing plate 110, after being positioned by alignment pin 112, then leads to Cross clamp system and realize that workpiece 104 is installed on the upper surface of backing plate 110.Offered only in the radial extension of floating buss 103 Turn hole, rotation stop pin 111 are arranged in rotation stop hole.

It should be noted that in order that floating buss 103 can float plane radially occurs, rotation stop hole also rotation stop pin Gap is provided between 111, further, in order to preferably enable the sagittal plane of floating buss 103 float, and will not be occurred Rotate, rotation stop hole can be mounting hole, and the bearing of trend of the radial section of mounting hole points to the axis of floating buss 103.

In the optional scheme of the embodiment, clamp system also includes position-limiting tube 113, and the circumference of position-limiting tube 113 offers more Individual spacing hole 114, clamping jaw 106 are installed in position-limiting tube 113；Push-and-pull tiltedly covers the inclined plane part 115 of 105 push-and-pull clamping jaws 106, can make The hook portion 116 of clamping jaw 106 is stretched out or retraction spacing hole 114.

Specifically, spacing hole 114 is located at the upper end of position-limiting tube 113；The quantity of spacing hole 114 and the quantity of clamping jaw 106 Equal, i.e., multiple clamping jaws 106 correspond with multiple spacing holes 114, and the hook portion 116 of clamping jaw 106 is limited in spacing hole 114.Limit The lower end of position pipe 113 is fixedly connected with clamp body 101, and position-limiting tube 113 is arranged in floating buss 103, the pipe of position-limiting tube 113 Footpath is less than the internal diameter of floating buss 103, is positioned to improve position-limiting tube 113 on clamp body 101, the lower end of position-limiting tube 113 is also Specifically there is cascade ring 107, the cascade ring 107 of position-limiting tube 113 is positioned in the positioning hole of clamp body 101.Position-limiting tube 113 also extends through Substrate 109 and backing plate 110, and there is gap between the outer tube wall of position-limiting tube 113 and substrate 109, the outer tube wall of position-limiting tube 113 with There is gap between backing plate 110, with ensure substrate 109 and backing plate 110 can diametrically occur with floating buss 103 it is micro Plane is floated.

In the optional scheme of the embodiment, push-and-pull tiltedly covers 105 tapered, i.e., tiltedly set 105 is in frustum for push-and-pull, and push-and-pull tiltedly covers The area of 105 upper surface is less than the area that push-and-pull tiltedly covers 105 lower surface；Multiple clamping jaws 106 tiltedly cover 105 circumference along push-and-pull Lay, and tiltedly set 105 engages slip company to clamping jaw 106 with push-and-pull, that is to say, that clamping jaw 106 is limited in by way of engaging to be pushed away Skew on set 105, and clamping jaw 106 can tiltedly cover the relative slip of 105 generations relative to push-and-pull.

In the optional scheme of the embodiment, the inclined plane part 115 of clamping jaw 106 has chuck 117, and push-and-pull tiltedly covers 105 conical surface It is upper to be limited in the neck 118 extended along cone element, chuck 117 in neck 118.

Specifically, there is chuck 117, push-and-pull tiltedly covers to be had on 105 conical surface on the inclined-plane of the inclined plane part 115 of clamping jaw 106 There is the neck 118 along the bus extension of the conical surface, chuck 117 can be so limited in push-and-pull and tiltedly covered on 105 conical surface；When pushing away Skew set 105 upwards motion when, the conical surface that push-and-pull tiltedly covers 105 can produce along push-and-pull to the inclined plane part 115 of clamping jaw 106 and tiltedly cover 105 Axial direction upward power and outward power radially, due to the hook portion 116 of clamping jaw 106 be limited in it is spacing In the spacing hole 114 of pipe 113, so clamping jaw 106 can not be moved in axial direction, the hook portion 116 of clamping jaw 106 can only be in radial direction side Outward motion is done, that is, is stretching out spacing hole 114, multiple 106 open-shaped states of clamping jaw, the now hook of multiple clamping jaws 106 Portion 116 is pressed on the step in the endoporus of brake drum, is realized and is clipped in brake drum on backing plate 110.When push-and-pull, tiltedly to cover 105 downward During motion, push-and-pull tiltedly cover 105 the conical surface inclined plane part 115 of clamping jaw 106 can be produced tiltedly covered along push-and-pull 105 axial direction to Under power and inside retraction radially power, because the hook portion 116 of clamping jaw 106 is limited in the spacing hole of position-limiting tube 113 In 114, so clamping jaw 106 can not be moved in axial direction, the hook portion 116 of clamping jaw 106 can only do inside retraction in radial direction Motion, i.e., in spacing hole 114 is retracted into, multiple clamping jaws 106 are in rounding state, now, can be by brake drum from backing plate 110 On remove.

In the embodiment, the quantity of clamping jaw 106 and spacing hole 114 is three.It should be noted that in the embodiment also Can be, the inclined plane part 115 of clamping jaw 106 has neck 118, and push-and-pull, which tiltedly covers, to be had on 105 conical surface along cone element extension Chuck 117, chuck 117 are limited in neck 118.

In the optional scheme of the embodiment, the cross section of chuck 117 is in I-shaped, the shape of the cross section of neck 118 In I-shaped.It should be noted that in the embodiment, the shape of the shape of the cross section of chuck 117 and the cross section of neck 118 Shape, can also each be in other shapes, for example, the shape of the cross section of chuck 117 is trapezoidal, the shape of the cross section of neck 118 Trapezoidal, i.e., neck 118 is dovetail groove.It should be noted that the bearing of trend of chuck 117 tiltedly covers 105 axial direction with push-and-pull Set in angle, the axial direction of the bearing of trend and the oblique set 105 of push-and-pull of neck 118 is set in angle, and angle is 30 degree.

In the optional scheme of the embodiment, clamp system also includes retractor device 120, for making push-and-pull tiltedly cover 105 along certainly The axial movement of body, even if push-and-pull tiltedly covers the 105 axial direction up and down motions that 105 are tiltedly covered along push-and-pull；The expansion link of retractor device 120 122 tiltedly cover 105 with push-and-pull is fixedly connected.

Specifically, by pull bar 119, tiltedly set 105 is fixedly connected the expansion link 122 of retractor device 120 with push-and-pull, is pushed away Tiltedly set 105 is integral type structure to pull bar 119 with push-and-pull, and pull bar 119 is located at the lower surface that push-and-pull tiltedly covers 105.Pull bar 119 It is threadedly coupled with expansion link 122.The expansion link 122 of retractor device 120 is arranged in position-limiting tube 113.Retractor device 120 is installed on In the cavity of clamp body 101, and it is fixedly connected with clamp body 101.

In the optional scheme of the embodiment, retractor device 120 is electric cylinder, cylinder or hydraulic cylinder.Specifically, stretch dress It is hydraulic cylinder to put 120.It should be noted that in the embodiment, retractor device 120 is not only limited to three of the above retractor device 120, can also be other types of retractor device 120, should for other retractor devices 120 for realizing flexible function Embodiment is no longer specifically described.

In the optional scheme of the embodiment, floatation element includes the first floating external member, and the first floating external member is sheathed on floating On axle sleeve 103；First floating external member includes the first backing plate 123, the second backing plate 124, the first ball 125 and the first ball retainer 126；First backing plate 123, the first ball retainer 126 and the second backing plate 124 are sheathed on floating buss 103 successively；First rolling The ball 125 of pearl retainer 126 and first is respectively positioned between the first backing plate 123 and the second backing plate 124, and the first ball is limited in In one ball retainer 126.Floatation element also includes the second floating external member, and the second floating external member is sheathed on floating buss 103, And second floating external member be located at the lower section of the first floating external member；Second floating external member include the 3rd backing plate 127, the 4th backing plate 128, Second ball 129 and the second ball retainer 130；3rd backing plate 127, the second ball retainer 130 and the 4th backing plate 128 are successively It is sheathed on floating buss 103；Second ball retainer 130 and the second ball 129 are respectively positioned on the 3rd backing plate 127 and the 4th backing plate Between 128, and the second ball is limited in the second ball retainer 130.First ball retainer and the second ball retainer Structure is identical.

Specifically, the first floating external member and the second floating external member are installed on floating buss 103 by locking nut 136 On, locking nut is connected with the lower end nut of floating buss 103.The lower end of first backing plate 123 and the extension of floating buss 103 Face fits.First backing plate 123 is located at the top of the first ball retainer 126, and the first ball retainer 126 is located at the second backing plate 124 top；First backing plate 123, the first ball retainer 126 and the second backing plate 124 are annular in shape；Outside first backing plate 123 There is gap between circle and the inwall of fixed cover 102, have between the inner circle of the second backing plate 124 and the outer wall of floating buss 103 Gap；The inner circle and the outer wall of floating buss 103 of first backing plate 123 fit, the cylindrical and fixed cover 102 of the second backing plate 124 Inwall fit；Second backing plate 124 is located at the top of the 3rd backing plate 127, and the second backing plate 124 and the 3rd backing plate 127 are consolidated Surely the support rim 131 on the inwall of set 102 is separated.3rd backing plate 127 is located at the top of the second ball retainer 130, the Two ball retainers 130 are located at the top of the 4th backing plate 128；3rd backing plate 127, the second ball retainer 130 and the 4th backing plate 128 is annular in shape；There is gap between the inner circle of 3rd backing plate 127 and the outer wall of floating buss 103, the 4th backing plate 128 it is outer Between circle and the inwall of fixed cover 102 between gap with gap, the cylindrical and fixed cover 102 of the 3rd backing plate 127 it is interior Wall fits, and the inner circle and the outer wall of floating buss 103 of the 4th backing plate 128 fit.By the cylindrical of the first backing plate 123 and admittedly Surely the inwall gap of set 102 coordinates, and the inner circle of the second backing plate 124 coordinates with the outer wall gap of floating buss 103, the 3rd backing plate 127 inner circle coordinates with the outer wall gap of floating buss 103, and the inwall gap of the cylindrical and fixed cover 102 of the 4th backing plate 128 is matched somebody with somebody Close, to realize that the plane floating of radial direction can occur relative to fixed cover 102 for floating buss 103.

In the embodiment, the quantity of the first ball is multiple, and the material of the first ball is steel, the first ball retainer 126 Material be steel.The quantity of second ball is multiple, and the material of the second ball is steel, and the material of the second ball retainer 130 is Steel.First ball is limited in the ring of the first ball retainer 126, and the second ball is limited in the ring of the second ball retainer 130 It is interior.First ball supports the first backing plate 123, and the second ball supports the 3rd backing plate 127, and the lower surface of floating buss 103 and folder Specific 101 upper surface gap setting, to ensure that floating buss 103 can do plane floating action.

In the optional scheme of the embodiment, multiple first adjustment bolts 132 and multiple are distributed with the circumference of fixed cover 102 Second adjustment bolt 133；First adjustment bolt 132 abuts against with the first ball retainer 126, for adjusting floating buss 103 Amount of floating；Second adjustment bolt 133 abuts against with the second ball retainer 130, for adjusting the floating of floating buss 103 Amount.

Specifically, where the ring heart that the first ball retainer 126 can be adjusted by multiple first adjustment bolts 132 The axiality of axis (i.e. the axis of the first ball retainer 126) and the axis of floating buss 103；Pass through the multiple second adjustment spiral shells Bolt 133 can adjust axis (i.e. the axis of the second ball retainer 130) where the ring heart of the second ball retainer 130 with it is floating The axiality of the axis of moving axis set 103.The regulation of the amount of floating to floating buss 103 just can be realized by adjusting axiality.Need It is noted that the first ball retainer 126 will not or hardly occur during being abutted by the first adjustment bolt 132 Deformation.Second ball retainer 130 will not or hardly deform upon during being abutted by the second adjustment bolt 133.The One adjustment bolt 132 and the second adjustment bolt 133 are three, and it is two neighboring between central angle be 60 degree.

In the optional scheme of the embodiment, the lower surface of the extension of floating buss offers annular groove 134, fixed cover There is annular boss 135, annular boss 135 is limited in annular groove 134, for limiting floating buss in radial direction side on upper surface Upward plane amount of floating.

In the embodiment, the operation principle of brake drum honing fixture is, when the piston rod of oil cylinder moves up and down, drives push-and-pull Tiltedly set 105 is moved up or moved down, so as to drive clamping jaw 106 is mobile in diametric(al) to clamp workpiece 104 or release work Part 104.Rotation stop pin 111 prevents workpiece 104 from rotating.Steel ball and floating axle are adjusted by the first adjusting screw and the second adjusting screw The distance between axis of set 103, can adjust amount of floating.

Embodiment two

The utility model embodiment two provides a kind of honing system, including brake drum honing fixture.The honing system is also Including machine tool chief axis and honing head, machine tool chief axis is rigidly connected with honing head.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.In addition, it will be appreciated by those of skill in the art that although some implementations described herein Example includes some features included in other embodiments rather than further feature, but the combination of the feature of different embodiments is anticipated Taste within the scope of the utility model and forms different embodiments.For example, in the following claims, institute The one of any of claimed embodiment mode can use in any combination.

Claims (10)

1. a kind of brake drum honing fixture, it is characterised in that including clamp body, fixed cover, floating buss and clamp system；

The fixed cover is fixed on the clamp body, and the floating buss is arranged in the fixed cover；The floating buss Floatation element is provided between the fixed cover, for enabling the floating buss relative to the fixed cover in radial direction side Relatively move upwards；

The clamp system is used to clamp workpiece, so that the workpiece can keep geo-stationary with the floating buss；It is described Clamp system includes push-and-pull, and tiltedly set and multiple clamping jaws, the push-and-pull tiltedly cover what is tiltedly covered along the push-and-pull for making multiple clamping jaws Radial direction is opened or collapsed.

2. brake drum honing fixture according to claim 1, it is characterised in that the clamp system also includes position-limiting tube, The circumference of the position-limiting tube offers multiple spacing holes, and the clamping jaw is installed in the position-limiting tube；The push-and-pull tiltedly covers push-and-pull The inclined plane part of the clamping jaw, the hook portion stretching of the clamping jaw or the spacing hole of retracting can be made.

3. brake drum honing fixture according to claim 2, it is characterised in that the push-and-pull tiltedly covers tapered；Multiple folders The circumferential laying that pawl tiltedly covers along the push-and-pull, and the clamping jaw tiltedly covers to engage and is slidably connected with the push-and-pull.

4. brake drum honing fixture according to claim 3, it is characterised in that the inclined plane part of the clamping jaw has chuck, There is the neck extended along cone element, the chuck is limited in the neck on the conical surface that the push-and-pull tiltedly covers；

Or, the inclined plane part of the clamping jaw has neck, has the chuck extended along cone element on the conical surface that the push-and-pull tiltedly covers, The chuck is limited in the neck.

5. the brake drum honing fixture according to any one of claim 1-4, it is characterised in that the clamp system also wraps Retractor device is included, for making the push-and-pull tiltedly cover along the axial movement of itself；

Tiltedly set is fixedly connected the expansion link of the retractor device with the push-and-pull.

6. the brake drum honing fixture according to any one of claim 1-4, it is characterised in that the floatation element includes First floating external member, the first floating external member are sheathed on the floating buss；

The first floating external member includes the first backing plate, the second backing plate, the first ball and the first ball retainer；First pad Plate, first ball retainer and second backing plate are sheathed on the floating buss successively；First ball is kept Frame and the first ball are respectively positioned between first backing plate and the second backing plate, and first ball is limited in first ball In retainer.

7. brake drum honing fixture according to claim 6, it is characterised in that the floatation element also includes second and floated External member, the second floating external member are sheathed on the floating buss, and the second floating external member is floated positioned at described first The lower section of external member；

The second floating external member includes the 3rd backing plate, the 4th backing plate, the second ball and the second ball retainer；3rd pad Plate, second ball retainer and the 4th backing plate are sheathed on the floating buss successively；Second ball is kept Frame and the second ball are respectively positioned between the 3rd backing plate and the 4th backing plate, and second ball is limited in second ball In retainer.

8. brake drum honing fixture according to claim 7, it is characterised in that be distributed with the circumference of the fixed cover more Individual first adjustment bolt and multiple second adjustment bolts；

First adjustment bolt abuts against with first ball retainer, for adjusting the amount of floating of the floating buss；

Second adjustment bolt abuts against with second ball retainer, for adjusting the amount of floating of the floating buss.

9. the brake drum honing fixture according to any one of claim 1-4, it is characterised in that also including substrate and pad Plate, the substrate are installed on the upper surface of the radial extension of the floating buss, and the backing plate is installed on the upper of the substrate End face；

The fixed cover is located at the lower section of the radial extension of the floating buss；

Rotation stop pin is installed on the fixed cover, locking is carried out for the rotation to the floating buss；

Alignment pin for positioning workpiece is installed on the substrate.

10. a kind of honing system, it is characterised in that including brake drum honing fixture as claimed in any one of claims 1-9 wherein.