CN207344147U - power head with sealing function - Google Patents

Abstract

Nib process equipment is the utility model is related to, especially a kind of power head with sealing function.The utility model adopts the following technical solution, a kind of power head with sealing function, including axle sleeve and main shaft, main shaft is spindle rotationally arranged on axle sleeve, the head of main shaft is equipped with convex disk, the lower face of convex disk is fixedly installed knife rest, between axle sleeve and main shaft clutch shaft bearing is arranged with the head position close to main shaft, between axle sleeve and main shaft second bearing is arranged with the tail position close to main shaft, axle sleeve, which is equipped with, is used for the locking closure for limiting clutch shaft bearing movement and the rear cover for limiting second bearing movement, locking closure is set with axle sleeve close-fitting, the upper surface of the convex disk and the lower face gap setting of locking closure, the upper surface of convex disk is equipped with least one first annular groove.By using such scheme, the utility model overcomes the shortcomings of the prior art, there is provided a kind of power head with sealing function, can prevent coolant from entering bearing, extend the service life of bearing.

Description

Power head with sealing function

Technical field

Nib process equipment is the utility model is related to, especially a kind of power head with sealing function.

Background technology

Nib process equipment includes the power head for processing nib, and general power head includes axle sleeve and main shaft, Main shaft is spindle rotationally arranged on axle sleeve, and main shaft is equipped with convex disk, and the lower face of the convex disk is fixedly installed knife rest, the axis Clutch shaft bearing is arranged with the position close to spindle nose between set and main shaft, close to main shaft tail between the axle sleeve and main shaft The position in portion is arranged with second bearing, and the axle sleeve is equipped with the locking closure for being used for limiting clutch shaft bearing movement, itself and sleeve lining Close-fitting, for the spacing of clutch shaft bearing, axle sleeve is equipped with the rear cover for being used for limiting second bearing movement, it is used for second bearing It is spacing, drill bit and cutter are installed on knife rest, nib can be drilled and be cut.But in process, in order to prevent Work pieces process overheats, and can spray coolant to workpiece, and convex disk upper surface and locking closure, there are gap, and are locked close to the end face of convex disk Lid is close to the axle portion end face of main shaft and the axle portion side of main shaft there is also gap, and coolant is easily from gap location inflow clutch shaft bearing Place, influences the normal use of clutch shaft bearing, has shortened the service life of bearing, be unfavorable for processing.

The content of the invention

The utility model overcomes the deficiencies in the prior art, there is provided a kind of power head with sealing function, can prevent Coolant enters bearing, extends the service life of bearing.

To achieve these goals, the technical solution adopted in the utility model is：A kind of power head with sealing function, Including axle sleeve and main shaft, the main shaft is spindle rotationally arranged on axle sleeve, and the head of the main shaft is equipped with convex disk, the convex disk Lower face is fixedly installed knife rest, is arranged with clutch shaft bearing in the head position close to main shaft between the axle sleeve and main shaft, institute State and be arranged with second bearing in the tail position close to main shaft between axle sleeve and main shaft, the axle sleeve, which is equipped with, to be used to limit first The locking closure of bearing movement and the rear cover for limiting second bearing movement, the locking closure are set with axle sleeve close-fitting, the convex disk Upper surface and locking closure lower face gap setting, the upper surface of the convex disk is equipped with least one first annular groove.

By using such scheme, main shaft includes bar portion and the convex disk being wholely set with bar portion, the head of main shaft herein Portion refers to main shaft and refers to the one end of main shaft away from convex disk close to one end of convex disk, the afterbody of main shaft, close to main between axle sleeve and main shaft The head position of axis is arranged with clutch shaft bearing, and second bearing is arranged with the tail position close to main shaft between axle sleeve and main shaft, The bar portion of main shaft is spindle rotationally arranged in axle sleeve by clutch shaft bearing and second bearing, and the convex disk of main shaft exposes axle sleeve, convex disk Lower face be fixedly installed knife rest, axle sleeve is equipped with the locking closure for being used for limiting clutch shaft bearing movement, and locking closure is set with axle sleeve close-fitting Put, axle sleeve is equipped with the rear cover for being used for limiting second bearing movement, the upper surface of convex disk and the lower face gap setting of locking closure, convex The upper surface of disk is equipped with least one first annular groove, in process, cutter setting frame sprinkling coolant when, coolant from Flow into, and flowed into first annular groove at gap, when first annular groove is arranged to multiple, coolant is produced by multiple first annular grooves Raw resistance, reduces its flow, produces throttle effect, and first annular groove can store the coolant for flowing into gap, can prevent from cooling down Liquid enters clutch shaft bearing, extends the service life of clutch shaft bearing.

Further set of the utility model be：The first annular groove into circular ring shape set, the first annular groove by From inside to outside at least provided with two, the V-shaped setting in section of first annular groove, the lower face of the locking closure corresponds to first annular groove Position is equipped with the second annular groove, the V-shaped setting in section of the second annular groove.

By using such scheme, first annular groove is set into circular ring shape, its convenient formation, first annular groove is from inside to outside At least provided with two, first annular groove number setting is more, and the resistance of generation is bigger, and the flow of coolant is smaller, throttling effect Fruit is more preferable, the V-shaped setting in section of first annular groove, increases resistance, can effectively reduce the flow of coolant, the lower face of locking closure Corresponding first annular groove location is equipped with the second annular groove, and the second annular groove corresponds with first annular groove and forms cavity and sets Put, play more preferable restriction effect, sealing performance is more preferable.

Further set of the utility model be：Locking nut is screwed with the main shaft, the locking nut is arranged on Side of the clutch shaft bearing away from locking closure is simultaneously resisted against on the end face of clutch shaft bearing.

By using such scheme, locking nut is screwed with main shaft, clutch shaft bearing side is resisted against on locking nut, separately Side is resisted against on locking closure, realizes the location and installation of clutch shaft bearing.

Further set of the utility model be：The main shaft is equipped with convex block, and second bearing is resisted against by the rear cover On the end face of convex block, bearing shim is equipped between the rear cover and second bearing, the afterbody of the main shaft is additionally provided with belt pulley, skin Belt wheel is connected with main shaft, and main shaft realizes the positioning to belt pulley by the nut that is screwed on.

By using such scheme, main shaft is equipped with convex block, and the side of second bearing is resisted against on the end face of convex block, and second The opposite side of bearing has compressed end cap, realizes the location and installation to second bearing, and bearing gasket is equipped between rear cover and second bearing Piece, plays transition connection, and the afterbody of main shaft is arranged with belt pulley, and belt pulley realizes and link that the belt pulley is arranged on main shaft close-fitting Outside axle sleeve, it can be driven by belt, so as to drive main axis, the end of main shaft is screwed with nut, can prevent belt pulley from coming off.

Further set of the utility model be：The main shaft is axially arranged with first passage along it, and the knife rest is for One channel position is provided with second channel, first passage and second channel mutual conduction, and drill bit is inserted with the second channel, The afterbody of the drill bit is extended at first passage, and the knife rest is radially equipped with threaded hole, and the threaded hole can be screwed on spiral shell Nail compresses the location and installation that drill bit realizes drill bit.

By using such scheme, the first passage of main shaft and the second channel mutual conduction of knife rest, drill bit are plugged in At two passages, knife rest is radially equipped with threaded hole, which is conducted with second channel, and be screwed on screw at threaded hole, Drill bit can be pressed on the inner wall of second channel by screw, realize the location and installation of drill bit, when drilling cutting, can be produced very much Waste material, carries out blowing operation to first passage, can blow waste material off.

Further set of the utility model be：The end face of the knife rest is respectively provided with the both sides positioned at drill bit The first cutter and the second cutter of cutting.

By using such scheme, the both sides of drill bit are fixedly installed the first cutter and the second cutter respectively, are being bored While hole, machining can be also carried out, improves the efficiency of processing.

The utility model is further described below in conjunction with the accompanying drawings.

Brief description of the drawings

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the structure diagram of the utility model embodiment intermediate slide；

Fig. 3 is the A-A diagrammatic cross-sections of Fig. 2；

Fig. 4 is the B portions enlarged diagram of Fig. 3；

Fig. 5 is main shaft and each component mounting structure schematic diagram in the utility model embodiment；

Fig. 6 is the structure diagram of main shaft in the utility model embodiment；

Fig. 7 is the structure diagram of locking closure in the utility model embodiment.

Embodiment

As shown in figs. 1-7, a kind of power head with sealing function, including axle sleeve 1 and main shaft 2, main shaft 2 are rotatably set Put on axle sleeve 1, the head of main shaft 2 is equipped with convex disk 21, and the lower face of convex disk 21 is fixedly installed knife rest 3, passes through the screw that is screwed on Mode fix, be arranged with clutch shaft bearing 4 close to the head position of main shaft 2 between axle sleeve 1 and main shaft 2, clutch shaft bearing 4 is angle Contact ball bearing, second bearing 5 is arranged between axle sleeve 1 and main shaft 2 in the tail position close to main shaft 2, and second bearing 5 is deep Ditch ball bearing, after axle sleeve 1 is equipped with the locking closure 6 for being used to limit the movement of clutch shaft bearing 4 and for limiting the movement of second bearing 5 Lid 7, the lateral wall of locking closure 6 are set with the madial wall close-fitting of axle sleeve 1, and the upper surface of convex disk 21 is set with the lower face gap of locking closure 6 Put, the upper surface of convex disk 21 is equipped with three first annular grooves 211 successively from inside to outside, can also set one, two or three More than a, first annular groove 211 is set into circular ring shape, and the V-shaped setting in section of first annular groove 211 can also be in the arc-shaped Or polygon is set, the lower face of locking closure 6 corresponds to first annular 211 position of groove and is equipped with the second annular groove 61, the second annular groove The V-shaped setting in section, can also in the arc-shaped or polygon set, first annular 211 and second annular groove 61 of groove is mutual It is corresponding, and form multiple independent cavitys.

In the present embodiment, main shaft 2 is equipped with external screw thread, is screwed with locking nut 81 thereon, and locking nut 81 is arranged on Side of the clutch shaft bearing 4 away from locking closure 6 is simultaneously resisted against on the end face of clutch shaft bearing 4, and locking nut 81 coordinates with locking closure 6 can be achieved The location and installation of clutch shaft bearing 4.

In the present embodiment, main shaft 2 is equipped with convex block 22, and the side of second bearing 5 is resisted against on the end face of convex block 22, after Second bearing 5 is resisted against on the end face of convex block 22 by lid 7, and rear cover 7 and 1 close-fitting of axle sleeve, are equipped between rear cover 7 and second bearing 5 Bearing shim 82, the lateral surface of bearing shim 82 and the medial surface close-fitting of axle sleeve, the afterbody of main shaft 2 are additionally provided with belt pulley 9, belt Wheel 9 and 2 close-fitting of main shaft, realize both be connected, main shaft 2 realizes the positioning to belt pulley 9 by the nut 83 that is screwed on.

In the present embodiment, main shaft 2 is axially arranged with first passage 23 along it, and knife rest 3 is set for 23 position of first passage There is a second channel 31,31 mutual conduction of first passage 23 and second channel, is inserted with drill bit 32 at second channel 31, drill bit 32 Afterbody is extended at first passage 23, and knife rest 3 is radially equipped with threaded hole 33, and the screw that can be screwed on of threaded hole 33 compresses drill bit 32 Realize the location and installation of drill bit 32, the end face of knife rest 3 is being respectively provided with the first cutter of cutting positioned at the both sides of drill bit 32 34 and second cutter 35.

One kind of above example, simply the utility model preferably specific embodiment, those skilled in the art are in this reality It is included in the usual variations and alternatives carried out in new technique aspects in the scope of protection of the utility model.

Claims (6)

1. a kind of power head with sealing function, including axle sleeve and main shaft, the main shaft are spindle rotationally arranged on axle sleeve, institute The head for stating main shaft is equipped with convex disk, and the lower face of the convex disk is fixedly installed knife rest, close between the axle sleeve and main shaft The head position of main shaft is arranged with clutch shaft bearing, and second is arranged with the tail position close to main shaft between the axle sleeve and main shaft Bearing, the axle sleeve, which is equipped with, is used for the locking closure for limiting clutch shaft bearing movement and the rear cover for limiting second bearing movement, The locking closure is set with axle sleeve close-fitting, it is characterised in that：The upper surface of the convex disk and the lower face gap setting of locking closure, it is described The upper surface of convex disk is equipped with least one first annular groove.

2. the power head according to claim 1 with sealing function, it is characterised in that：The first annular groove is into annulus Shape is set, and the first annular groove is from inside to outside at least provided with two, the V-shaped setting in section of first annular groove, the lock The lower face of lid corresponds to first annular groove location and is equipped with the second annular groove, the V-shaped setting in section of the second annular groove.

3. the power head according to claim 1 or 2 with sealing function, it is characterised in that：It is screwed with the main shaft Locking nut, the locking nut are arranged on side of the clutch shaft bearing away from locking closure and are resisted against on the end face of clutch shaft bearing.

4. the power head according to claim 1 or 2 with sealing function, it is characterised in that：The main shaft is equipped with convex Second bearing is resisted against on the end face of convex block by block, the rear cover, and bearing shim, institute are equipped between the rear cover and second bearing The afterbody for stating main shaft is additionally provided with belt pulley, and belt pulley is connected with main shaft, and main shaft is realized to belt pulley by the nut that is screwed on Positioning.

5. the power head according to claim 1 or 2 with sealing function, it is characterised in that：The main shaft is along its axial direction Equipped with first passage, the knife rest is provided with second channel, first passage and second channel phase mutual conductance for first passage position It is logical, drill bit is inserted with the second channel, the afterbody of the drill bit is extended at first passage, and the knife rest is radially set There is a threaded hole, the threaded hole screw that can be screwed on compresses the location and installation that drill bit realizes drill bit.

6. the power head according to claim 5 with sealing function, it is characterised in that：The end face of the knife rest positioned at The both sides of drill bit are respectively provided with the first cutter and the second cutter of cutting.