CN209453356U

CN209453356U - Finishing automatic grinding head

Info

Publication number: CN209453356U
Application number: CN201821854416.XU
Authority: CN
Inventors: 周士升; 詹淳崵; 赵长亮; 蒋燕
Original assignee: Suzhou Feng Chuan Electronic Technology Co Ltd
Current assignee: Suzhou Feng Chuan Electronic Technology Co Ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2019-10-01
Anticipated expiration: 2028-11-12

Abstract

The utility model discloses a kind of finishing automatic grinding head, including outer housing, inner housing, core and swivel head, the inner housing is located in outer housing, the core is rotatably set in inner housing, the swivel head and core installation connect, the inner and outer wall of the inner housing is cylindrical surface, there are two annular grooves disposed in parallel for tool on the inner housing outer wall, several air inlets are provided on the intracorporal annular groove inner wall of first chamber, several air outlets are provided on the intracorporal annular groove inner wall of second chamber, air inlet and air outlet are provided on the outer housing, the air inlet and the first cavity penetrate through, the gas outlet and the second cavity penetrate through, the central axis that the lower end of the core is connected with swivel head described in a rotation shell is not overlapped with the central axis of core.The setting of the utility model top cover, structure is simple, the convenient dismounting to component, while the internal structures such as core being protected not influenced by external dust etc., extends the service life of component.

Description

Finishing automatic grinding head

Technical field

The utility model relates to a kind of finishing automatic grinding heads, belong to Electronic product precision part processing technique field.

Background technique

Surface structure part/accessory of most of mobile phone, laptop is using metal material, metal material currently on the market Molding mainly have a modes such as aluminium extruded, die casting, forging and stamping, no matter which kind of molding mode, CNC machining center is both needed to after molding and is added Work, due to that, there are the bad orders phenomenon such as knife mark, scuffing, need to be passivated to workpiece, sanding and polishing, spray in CNC process A series of appearance reprocessing such as painting, anodic oxidation.And in the grinding process, the consumption of grinding head is very serious, needs often Replacement, had not only reduced the efficiency of production but also had improved the cost of processing.

Utility model content

The purpose of the utility model is to provide a kind of finishing automatic grinding head, finishing automatic grinding head top caps Setting, structure is simple, the convenient dismounting to component, while the internal structures such as core being protected not influenced by external dust etc., Extend the service life of component.

In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of finishing automatic grinding head, including Outer housing, inner housing, core and swivel head, the inner housing are located in outer housing, and the core is rotatably set to inner casing In vivo, the swivel head and core installation connect；

The inner and outer wall of the inner housing is cylindrical surface, the central axis and inner casing on inner housing outer wall cylindrical surface It the centerline axis parallel on internal wall cylindrical surface and is not overlapped, so that the wall thickness of inner housing is gradually incremented by upwards in semi-circumference, There are two annular grooves disposed in parallel for tool on the inner housing outer wall, to form the first parallel protrusion on interior housing exterior walls Portion, the second lug boss and third protrusion portion, the inner housing outer wall are connect with outer housing inner wall close-fitting, thus outer housing with it is interior The first cavity and the second cavity are formed between two annular grooves of shell, if being provided on the intracorporal annular groove inner wall of first chamber Dry air inlet is provided with several air outlets on the intracorporal annular groove inner wall of the second chamber；

The central axis of the core is overlapped with the central axis on inner housing outer wall cylindrical surface, this core passes through upper bearing (metal) Seat, step are rotatably installed in outer housing, and the top chock lower surface and inner housing top surface connect, described Step is set in outer housing and is located at below inner housing, is circumferentially equidistantly provided with several blades on the core Slot has been respectively embedded into driving blade in this blade groove, is provided with air inlet and air outlet on the outer housing, the air inlet with The perforation of first cavity, the gas outlet and the second cavity penetrate through；

The lower end of the core is connected with a rotation shell, has a mounting base in this rotation shell, this mounting base passes through an axis It holds and is rotatably installed in rotation shell, the swivel head is connect with mounting base, the center of the mounting base, bearing and swivel head Axis is overlapped, and the central axis of the swivel head is not overlapped with the central axis of core.

Further improved scheme is as follows in above-mentioned technical proposal:

1. in above scheme, the core includes upper axle portion, driving portion and lower shaft portion, the upper axle portion is embedded in upper bearing (metal) In seat, in the lower shaft portion insertion step, the driving part is in inner housing.

2. in above scheme, a washer is set in the lower shaft portion of the core, this washer is embedded in step upper surface Through-hole in, and the upper surface of washer be higher than step upper surface.

3. in above scheme, the central axis of the inner housing outer wall cylinder is located in inner housing inner wall.

4. in above scheme, first lug boss, the second lug boss, third protrusion portion are arranged at equal intervals.

5. in above scheme, the number of several blade grooves is 4.

6. in above scheme, there is internal screw thread, the interconnecting piece insertion outer housing of a top cover is simultaneously at the outer housing upper opening It is threadedly coupled with outer housing.

7. in above scheme, a sealing ring is provided between the top cover and outer housing.

8. in above scheme, the lower shaft portion of the core is sequentially embedded step and rotation shell top, and passes through a pin Nail is connect with rotation shell.

9. in above scheme, in the bearing insertion rotation shell, and the outer wall of bearing and rotation shell inner wall are fitted close, On the rotation shell inner wall and it is located at bearing lower section with annular groove, this annular groove has been embedded in a circlip, the circlip Upper surface and underside bearing surface connect.

Due to the application of the above technical scheme, the utility model has the advantage that compared with prior art

1, the utility model finishing automatic grinding head, the combination settings of inner and outer shell and core, clever structure, gas Entering inner housing by the first cavity, blows driving blade, driving blade drives core rotation, is discharged using the second cavity, The rotation of core drives swivel head rotation, realizes automatically grinding, and structure is simple, easy to use；In addition, the lower shaft portion end of its core End is connected with a rotation shell, has a mounting base in this rotation shell, this mounting base is rotatably installed on rotation by a bearing In shell, the swivel head is connect with mounting base, and the central axis of the mounting base, bearing and swivel head is overlapped, the swivel head Central axis be not overlapped with the central axis of core, by rotation shell and bearing drive swivel head to rotate indirectly, prevent from pushing Occur swivel head stuck situation when strength is excessive, guarantees the flexible rotating of swivel head；And swivel head and driving spin head Core out-of-alignment eccentric setting improve the fine degree of polishing so that will not leave behind the trajectory line of polishing in bruting process.

2, the utility model, which finishes, uses automatic grinding head, is set with a washer in the lower shaft portion of core, this washer is embedding In the through-hole for entering step upper surface, and the upper surface of washer be higher than step upper surface, the setting of washer so that under Have small gap without contacting between bearing block upper surface and the driving portion of core and the lower surface of driving blade, it can be effective The abrasion in rotary course to core driving portion and blade is prevented, extends the time that it is used and does not have to often replacement, improve life Produce efficiency, save the cost；In addition, at its outer housing upper opening have internal screw thread, a top cover interconnecting piece insertion outer housing and with Outer housing is threadedly coupled, and the setting of top cover, structure is simple, the convenient dismounting to component, while protecting the internal structures such as core not It is influenced by external dust etc., extends the service life of component.

3, the utility model finishing automatic grinding head, is provided with a sealing ring between top cover and outer housing, seal The setting of circle, further such that core and external environs, prevent external dust, in air steam influence, extend component Service life；In addition, in its bearing insertion rotation shell, and the outer wall of bearing and rotation shell inner wall are fitted close, the rotation shell On inner wall and be located at below bearing there is annular groove, this annular groove has been embedded in a circlip, the upper surface of the circlip with Underside bearing surface connects, the setting of circlip, plays the role of sealing and further fixes bearing, prevents the steam in air Or the liquid used in polishing enters in shell below grinding head, causes inner body to get rusty, extends the use of grinding head Service life.

Detailed description of the invention

Attached drawing 1 is the utility model finishing automatic grinding header structure cross-sectional view；

Attached drawing 2 is inner shell structure schematic diagram in the utility model finishing automatic grinding head；

Attached drawing 3 is core structural decomposition diagram in the utility model finishing automatic grinding head；

Attached drawing 4 is the utility model processing automatic grinding head partial structure sectional view.

In the figures above: in the figures above: 1, outer housing；2, inner housing；3, core；4, swivel head；5, annular groove；11, Upper axle portion；12, driving portion；13, lower shaft portion；61, the first lug boss；62, the second lug boss；63, third protrusion portion；7, top cover； 8, the first cavity；9, the second cavity；101, air inlet；102, air outlet；14, top chock；15, step；17, blade Slot；18, driving blade；19, air inlet；20, gas outlet；21, sealing ring；22, shell is rotated；23, mounting base；24, bearing；25, Pin；26, circlip；27, washer.

Specific embodiment

Embodiment 1: a kind of finishing automatic grinding head, including outer housing 1, inner housing 2, core 3 and swivel head 4, institute It states inner housing 2 to be located in outer housing 1, the core 3 is rotatably set in inner housing 2, and the swivel head 4 is pacified with core 3 Load connects；

The inner and outer wall of the inner housing 2 is cylindrical surface, the central axis on the 2 outer wall cylindrical surface of inner housing with it is interior It the centerline axis parallel on 2 inner wall cylindrical surface of shell and is not overlapped, so that the wall thickness of inner housing 2 is gradually passed upwards in semi-circumference Increase, there are two annular grooves 5 disposed in parallel for tool on 2 outer wall of inner housing, to form parallel the on 2 outer wall of inner housing One lug boss 61, the second lug boss 62 and third protrusion portion 63,2 outer wall of inner housing are connect with 1 inner wall close-fitting of outer housing, from And the first cavity 8 and the second cavity 9 are formed between outer housing 1 and two annular grooves 5 of inner housing 2, in first cavity 8 5 inner wall of annular groove on be provided with several air inlets 101, be provided with several air outlets on 5 inner wall of annular groove in second cavity 9 102；

The central axis of the core 3 is overlapped with the central axis on 2 outer wall cylindrical surface of inner housing, this core 3 passes through upper axis Hold seat 14, step 15 is rotatably installed in outer housing 1,14 lower surface of top chock connects with 2 top surface of inner housing Touching connection, the step 15 are set in outer housing 1 and are located at below inner housing 2, on the core 3 circumferentially at equal intervals Several blade grooves 17 are provided with, driving blade 18 has been respectively embedded into this blade groove 17, has been provided with air inlet on the outer housing 1 19 and gas outlet 20, the air inlet 19 and the first cavity 8 penetrate through, the gas outlet 20 and the perforation of the second cavity 9；

The lower end of the core 3 is connected with a rotation shell 22, has a mounting base 23, this mounting base 23 in this rotation shell 22 It being rotatably installed in rotation shell 22 by a bearing 24, the swivel head 4 is connect with mounting base 23, the mounting base 23, The central axis of bearing 24 and swivel head 4 is overlapped, and the central axis of the swivel head 4 is not overlapped with the central axis of core 3.

Above-mentioned core 3 includes upper axle portion 11, driving portion 12 and lower shaft portion 13, and above-mentioned upper axle portion 11 is embedded in top chock 14 Interior, above-mentioned lower shaft portion 13 is embedded in step 15, and above-mentioned driving portion 12 is located in inner housing 2；The lower shaft portion 13 of above-mentioned core 3 On be set with a washer 27, this washer 27 is embedded in the through-hole of 15 upper surface of step, and under the upper surface of washer 27 is higher than The upper surface of bearing block 15；A sealing ring 21 is provided between above-mentioned top cover 7 and outer housing 1；The lower shaft portion 13 of above-mentioned core 3 according to Secondary insertion step 15 and rotation 22 top of shell, and connect by a pin 25 with rotation shell 22.

Embodiment 2: a kind of finishing automatic grinding head, including outer housing 1, inner housing 2, core 3 and swivel head 4, institute It states inner housing 2 to be located in outer housing 1, the core 3 is rotatably set in inner housing 2, and the swivel head 4 is pacified with core 3 Load connects；

The central axis of above-mentioned 2 outer wall cylinder of inner housing is located in 2 inner wall of inner housing；Above-mentioned first lug boss 61, second Lug boss 62, third protrusion portion 63 are arranged at equal intervals；The number of above-mentioned several blade grooves 17 is 4；Above-mentioned 1 upper opening of outer housing Place has internal screw thread, and the interconnecting piece insertion outer housing 1 of a top cover 7 is simultaneously threadedly coupled with outer housing 1；The above-mentioned insertion of bearing 24 rotation In shell 22, and the outer wall of bearing 24 and rotation 22 inner wall of shell are fitted close, and on above-mentioned 22 inner wall of rotation shell and are located under bearing 24 Side has annular groove, this annular groove has been embedded in a circlip 26, and upper surface and 24 lower surface of bearing of above-mentioned circlip 26 connect Touching connection.

When using above-mentioned finishing automatic grinding head, the combination settings of inner and outer shell and core, clever structure, gas warp It crosses the first cavity and enters inner housing, blow driving blade, driving blade drives core rotation, is discharged using the second cavity, core The rotation of body drives swivel head rotation, realizes automatically grinding, and structure is simple, easy to use；In addition, it passes through rotation shell and bearing Swivel head rotation is driven indirectly, prevents occurring swivel head stuck situation when lower amount of pressure is excessive, guarantees flexibly turning for swivel head It is dynamic；And the core out-of-alignment eccentric setting of swivel head and driving spin head, so that will not leave behind polishing in bruting process Trajectory line, improve the fine degree of polishing；In addition, the setting of its washer, so that the driving of step upper surface and core Have small gap without contacting between portion and the lower surface of driving blade, can effectively prevent in rotary course driving core The abrasion in portion and blade extends the time that it is used and does not have to often replacement, improves production efficiency, save the cost；

In addition, the setting of its top cover, structure is simple, the convenient dismounting to component, while protecting the internal structures such as core not It is influenced by external dust etc., extends the service life of component；In addition, the setting of its sealing ring, further such that core and outer The isolation of portion's environment, prevent external dust, in air steam influence, extend component service life；In addition, the setting of its circlip, Play the role of sealing and further fix bearing, prevents the liquid used in steam or polishing in air under grinding head Side enters in shell, causes inner body to get rusty, extends the service life of grinding head.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims

1. a kind of finishing automatic grinding head, it is characterised in that: including outer housing (1), inner housing (2), core (3) and rotation Head (4), the inner housing (2) are located in outer housing (1), and the core (3) is rotatably set in inner housing (2), described Swivel head (4) and core (3) installation connect；

The inner and outer wall of the inner housing (2) is cylindrical surface, the central axis on inner housing (2) the outer wall cylindrical surface with it is interior The centerline axis parallel on shell (2) inner wall cylindrical surface and be not overlapped so that the wall thickness of inner housing (2) semi-circumference upwards by Gradually it is incremented by, there are two annular groove disposed in parallel (5) for tool on inner housing (2) outer wall, thus the shape on inner housing (2) outer wall At parallel the first lug boss (61), the second lug boss (62) and third protrusion portion (63), inner housing (2) outer wall and shell Body (1) inner wall close-fitting connection, to form the first cavity between outer housing (1) and two annular grooves (5) of inner housing (2) (8) and the second cavity (9) it, is provided with several air inlets (101) on annular groove (5) inner wall in first cavity (8), described Several air outlets (102) are provided on annular groove (5) inner wall in two cavitys (9)；

The central axis of the core (3) is overlapped with the central axis on inner housing (2) outer wall cylindrical surface, this core (3) passes through upper Bearing block (14), step (15) are rotatably installed in outer housing (1), top chock (14) lower surface and inner casing Body (2) top surface connects, and the step (15) is set in outer housing (1) and is located at below inner housing (2), the core It is circumferentially equidistantly provided with several blade grooves (17) on body (3), has been respectively embedded into driving blade (18) in this blade groove (17), Air inlet (19) and gas outlet (20) are provided on the outer housing (1), the air inlet (19) and the first cavity (8) penetrate through, The gas outlet (20) and the second cavity (9) penetrate through；

The lower end of the core (3) is connected with a rotation shell (22), has a mounting base (23) in this rotation shell (22), this installation Seat (23) is rotatably installed in rotation shell (22) by a bearing (24), and the swivel head (4) connect with mounting base (23), The central axis of the mounting base (23), bearing (24) and swivel head (4) is overlapped, the central axis and core of the swivel head (4) The central axis of body (3) is not overlapped.

2. finishing automatic grinding head according to claim 1, it is characterised in that: the core (3) includes upper axle portion (11), driving portion (12) and lower shaft portion (13), upper axle portion (11) insertion top chock (14) is interior, and the lower shaft portion (13) is embedding Enter in step (15), the driving portion (12) is located in inner housing (2).

3. finishing automatic grinding head according to claim 2, it is characterised in that: the lower shaft portion of the core (3) (13) washer (27) are set on, this washer (27) is embedded in the through-hole of step (15) upper surface, and washer (27) Upper surface is higher than the upper surface of step (15).

4. finishing automatic grinding head according to claim 1, it is characterised in that: inner housing (2) the outer wall cylinder Central axis be located in inner housing (2) inner wall.

5. finishing automatic grinding head according to claim 1, it is characterised in that: first lug boss (61), the Two lug bosses (62), third protrusion portion (63) are arranged at equal intervals.

6. finishing automatic grinding head according to claim 1, it is characterised in that: the number of several blade grooves (17) Mesh is 4.

7. finishing automatic grinding head according to claim 1, it is characterised in that: at outer housing (1) upper opening With internal screw thread, interconnecting piece insertion outer housing (1) of a top cover (7) is simultaneously threadedly coupled with outer housing (1).

8. finishing automatic grinding head according to claim 7, it is characterised in that: the top cover (7) and outer housing (1) Between be provided with a sealing ring (21).

9. finishing automatic grinding head according to claim 2, it is characterised in that: the lower shaft portion of the core (3) (13) it is sequentially embedded step (15) and rotation shell (22) top, and is connect by a pin (25) with rotation shell (22).

10. finishing automatic grinding head according to claim 1, it is characterised in that: bearing (24) the insertion rotation In shell (22), and the outer wall of bearing (24) and rotation shell (22) inner wall are fitted close, and on rotation shell (22) inner wall and are located at There is below bearing (24) annular groove, this annular groove has been embedded in a circlip (26), the upper surface of the circlip (26) with Bearing (24) lower surface connects.