CN210188623U - Ball end mill with adjustable cutter body length - Google Patents

Abstract

The utility model discloses a milling cutter is found to bulb of adjustable blade length, found the milling cutter body including the bulb, the right-hand member fixedly connected with adjusting device of milling cutter body is found to the bulb, adjusting device includes the sleeve, telescopic left end and bulb found the right-hand member swing joint of milling cutter body, through-hole one has been seted up to telescopic left end, the inner wall sliding connection of through-hole one has flexible pipe, the right-hand member fixed connection of milling cutter body is found with the bulb to the left end of flexible pipe, the inner wall sliding connection of flexible pipe has the inner tube, the right-hand member of inner tube and the right side fixed connection of sleeve inner wall, through-hole two has been seted up to telescopic right-hand member. The utility model discloses, use through the cooperation between the above-mentioned structure, solved in the in-service use because the screw stands the fixed centre gripping of milling cutter body to the bulb firm inadequately, and need extra instrument to assist the dismouting when changing, comparatively waste time and energy, the problem of inconvenience is brought for the use.

Description

Ball end mill with adjustable cutter body length

Technical Field

The utility model relates to an industrial cutter technical field specifically is a bulb end mill of adjustable blade length.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. The conventional ball end mill is fixed in end, is difficult to be adjusted adaptively according to actual processing requirements, has a limited processing range, and can only replace the cutter according to the actual required length by an operator, so that the working efficiency is reduced, and therefore, a length-adjustable ball end mill is provided for the purpose, for example, the length-adjustable ball end mill disclosed in Chinese patent CN208644192U comprises a ball end mill body and an adjustable handle; and one hole site in the spiral continuous screw hole on the external thread connecting end is always superposed with the independent screw hole on the internal thread sleeve. The utility model discloses the machined part of various length in the applicable certain limit has improved work efficiency to a certain extent, but in the in-service use process, because the screw is firm inadequately to the fixed centre gripping of bulb end milling cutter body, and need extra instrument to assist the dismouting when changing, comparatively wastes time and energy, brings inconvenience for the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bulb end mill of adjustable blade length improves traditional device, has solved the problem among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bulb end mill of adjustable blade length, includes that the bulb founds the milling cutter body, the right-hand member fixedly connected with adjusting device of the milling cutter body is found to the bulb, adjusting device includes the sleeve, telescopic left end and the right-hand member swing joint of the milling cutter body is found to the bulb, through-hole one has been seted up to telescopic left end, the inner wall sliding connection of through-hole one has flexible pipe, the right-hand member fixed connection of the milling cutter body is found with the bulb to the left end of flexible pipe.

The inner wall of the telescopic pipe is connected with an inner pipe in a sliding manner, the right end of the inner pipe is fixedly connected with the right side of the inner wall of the sleeve, the right end of the sleeve is provided with a second through hole, the inner wall of the second through hole is limited and rotated to form a damping rotary rod, the inner wall of the inner pipe close to the left end is fixedly connected with a shell, the surface of the damping rotary rod close to the left end penetrates through the shell and is limited and rotated on the shell, the left end of the damping rotary rod is rotatably connected with a supporting plate, the surface of the supporting plate is fixedly connected with the inner wall of the shell, the circle center of the left end of the damping rotary rod is fixedly connected with a driven shaft, the left end of the driven shaft penetrates through the supporting plate and is fixedly connected with a rotary plate, the right side of the rotary plate is provided with a spiral groove, the inner wall of the spiral groove is slidably connected with a, the inner wall of the telescopic pipe is provided with a clamping hole, and the surface of the end part of the clamping column is movably connected with the inner wall of the clamping hole.

Preferably, the surface of the sleeve is provided with a holding groove, and the inner wall of the holding groove on the sleeve is provided with anti-skid grains.

Preferably, the surface of the telescopic pipe is fixedly connected with a sliding block, and the inner wall of the sleeve is provided with a limiting groove for the sliding block to slide left and right.

Preferably, the number of the sliding blocks is two, and the two sliding blocks are symmetrically arranged on the horizontal center line of the damping rotary rod.

Preferably, the end part of the sliding block is an arc-shaped surface, and the sliding block is connected with the inner wall of the limiting groove in a sliding mode through the arc-shaped surface on the sliding block.

Preferably, the surface of the damping rotary rod is fixedly connected with two limiting rings, and the opposite sides of the two limiting rings are respectively connected with the right side of the sleeve and the right side of the inner wall of the sleeve in a rotating manner.

Preferably, the right end of the damping rotary rod is fixedly connected with an armrest block, and anti-skid grains are formed in the surface of the armrest block.

Preferably, the number of the clamping columns is two, and the two clamping columns are symmetrically arranged with the horizontal center line of the driven shaft.

Preferably, the end part of the clamping column is an arc-shaped surface, and anti-skid grains are arranged on the surface of the clamping column.

Preferably, the number of the clamping holes is not less than ten, and the plurality of clamping holes are arranged on the inner wall of the sleeve at equal intervals.

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

the utility model has the advantages that through the arrangement of the adjusting device, the ball head vertical milling cutter body can realize the telescopic positioning operation, thereby achieving the effect of adjusting the length of the cutter body, being simple and convenient to use, and improving the working efficiency;

the driven shaft on the left end of the damping rotary rod is coaxially rotated with the damping rotary rod through the rotation of the manually driven damping rotary rod, so that the rotary disc on the driven shaft is coaxially rotated with the damping rotary rod, and the clamping column cannot rotate along with the rotary disc through the sliding column due to the movement of the clamping column in the through groove, so that the sliding column and the rotary disc are relatively slid; when the turntable and the driven shaft synchronously rotate, the two clamping columns simultaneously move in opposite directions and move away from each other under the guidance of the spiral groove on the turntable; when the two clamping columns move away from each other, the two clamping columns penetrate through the through groove and finally enter the clamping holes in the telescopic pipe, the inner pipe and the telescopic pipe are locked, the telescopic pipe is fixed on the inner pipe, and then the relative position of the ball head vertical milling cutter body on the sleeve is locked; when the two clamping columns move oppositely, the two clamping columns can be separated from the clamping holes in the telescopic pipe, the telescopic pipe can move relative to the inner pipe when the locking between the telescopic pipe and the inner pipe is released, namely, the ball head vertical milling cutter body can stretch relative to the sleeve, and the length of the cutter body is adjusted; so that the adjustment of the length of the cutter body of the ball end mill body is completed;

thirdly, the utility model discloses a cooperation between the above-mentioned structure is used, has solved in the in-service use because the screw is firm inadequately to the fixed centre gripping of the ball end mill cutter body, and needs extra instrument to assist the dismouting when changing, comparatively wastes time and energy, the problem of bringing inconvenience for the use.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

fig. 2 is a front cross-sectional view of the sleeve of the present invention;

fig. 3 is a front sectional view of the housing of the present invention;

fig. 4 is a right side view of the spiral groove of the present invention.

In the figure: the milling cutter comprises a ball head vertical milling cutter body 1, a ball head vertical milling cutter body 2, an adjusting device 3, a sleeve 4, a through hole I, a telescopic pipe 5, an inner pipe 6, a through hole II, a damping rotary rod 8, a shell 9, a supporting plate 10, a driven shaft 11, a rotary disc 12, a spiral groove 13, a sliding column 14, a clamping column 15, a through groove 16, a clamping hole 17, a sliding block 18, a limiting groove 19, a limiting ring 20 and a handrail block 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a ball end mill capable of adjusting the length of a cutter body comprises a ball end vertical milling cutter body 1, wherein the ball end mill is a cutter with a cutting edge similar to a ball head and assembled on a milling machine for milling various curved surfaces and arc grooves, an adjusting device 2 is fixedly connected to the right end of the ball end vertical milling cutter body 1, and the ball end vertical milling cutter body 1 can realize telescopic positioning operation through the arrangement of the adjusting device 2, so that the effect of adjusting the length of the cutter body is achieved, the use is simple and convenient, and the working efficiency is improved; the adjusting device 2 comprises a sleeve 3, a holding groove is formed in the surface of the sleeve 3, anti-slip grains are formed in the inner wall of the holding groove in the sleeve 3, the holding groove is formed to facilitate the holding during adjustment, and the anti-slip grains are formed in the sleeve to enable the sleeve to be not easy to slip during the holding; the left end of the sleeve 3 is movably connected with the right end of the ball head vertical milling cutter body 1, the left end of the sleeve 3 is provided with a through hole I4, the inner wall of the through hole I4 is connected with a telescopic pipe 5 in a sliding manner, and the length of the cutter body of the ball head vertical milling cutter body 1 is adjusted by the left-right sliding of the telescopic pipe 5 in the sleeve 3; the surface of the extension tube 5 is fixedly connected with a slide block 18, the inner wall of the sleeve 3 is provided with a limit groove 19 for the slide block 18 to slide left and right, and the slide block 18 slides in the limit groove 19 to ensure the stability of the extension tube 5 sliding in the sleeve 3; the number of the sliding blocks 18 is two, the two sliding blocks 18 are symmetrically arranged by the horizontal central line of the damping rotary rod 8, and the two sliding blocks 18 are symmetrically arranged, so that the stress of the telescopic pipe 5 is more balanced, and the telescopic pipe is more stable during movement; the end part of the sliding block 18 is an arc-shaped surface, the sliding block 18 is connected with the inner wall of the limiting groove 19 in a sliding mode through the arc-shaped surface on the sliding block 18, and the sliding of the sliding block 18 in the limiting groove 19 is smoother through the arrangement of the arc-shaped surface on the sliding block 18; the left end of the telescopic pipe 5 is fixedly connected with the right end of the ball head vertical milling cutter body 1;

the inner wall of the telescopic pipe 5 is connected with an inner pipe 6 in a sliding way, and the inner pipe 6 plays roles of fixing, supporting and limiting; the right end of the inner tube 6 is fixedly connected with the right side of the inner wall of the sleeve 3, the right end of the sleeve 3 is provided with a second through hole 7, the inner wall of the second through hole 7 is limited to rotate and provided with a damping rotary rod 8, and the surface of the damping rotary rod 8 is fixedly connected with a rubber sleeve, so that the damping rotary rod has damping viscous feeling in the rotating process, and the damping rotary rod 8 is not easy to rotate after the rotation is finished and has better stability; the surface of the damping rotary rod 8 is fixedly connected with two limiting rings 20, the opposite sides of the two limiting rings 20 are respectively rotatably connected with the right side of the sleeve 3 and the right side of the inner wall of the sleeve 3, through the arrangement of the two limiting rings 20, on one hand, the damping rotary rod 8 can perform more stable limiting rotation on the sleeve 3, and meanwhile, through the contact between the two limiting rings 20 and the sleeve 3, friction force is increased, so that the rotation resistance of the damping rotary rod 8 is larger, the rotation is further improved, the damping effect is realized, and the accidental rotation of the damping rotary rod 8 is avoided; the right end of the damping rotary rod 8 is fixedly connected with the handrail block 21, the surface of the handrail block 21 is provided with anti-skid grains, the damping rotary rod 8 is conveniently driven to rotate through the arrangement of the handrail block 21, and the anti-skid grains are arranged on the damping rotary rod, so that the rotation is more labor-saving; the inner wall close to the left end of the inner tube 6 is fixedly connected with a shell 9, the surface close to the left end of the damping rotary rod 8 penetrates through the shell 9 and rotates on the shell 9 in a limiting mode, the left end of the damping rotary rod 8 is rotatably connected with a supporting plate 10, the supporting plate 10 supports a clamping column 15, the clamping column is enabled to move more stably, the surface of the supporting plate 10 is fixedly connected with the inner wall of the shell 9, a driven shaft 11 is fixedly connected to the circle center of the left end of the damping rotary rod 8, and the driven shaft 11 plays a role in transmission; the left end of the driven shaft 11 penetrates through the supporting disc 10 and is fixedly connected with the rotary disc 12, the driven shaft 11 on the left end of the damping rotary rod 8 rotates coaxially with the damping rotary rod 8 through the manual driving of the damping rotary rod 8, and the rotary disc 12 on the driven shaft 11 also rotates coaxially with the damping rotary rod; a spiral groove 13 is formed in the right side of the rotary table 12, a sliding column 14 is connected to the inner wall of the spiral groove 13 in a sliding mode, a clamping column 15 is fixedly connected to the right end of the sliding column 14, and the clamping column 15 cannot rotate along with the rotary table 12 through the sliding column 14 due to the fact that the clamping column 15 moves in the through groove 16, and therefore the sliding column 14 and the rotary table 12 slide relatively; after the rotary disc 12 and the driven shaft 11 synchronously rotate, under the guide of the spiral groove 13 on the rotary disc 12, the two clamping columns 15 simultaneously move in the opposite direction and move away from each other; when the two clamping columns 15 move away from each other, the two clamping columns penetrate through the through groove 16 and finally enter the clamping holes 17 in the telescopic pipe 5, the inner pipe 6 and the telescopic pipe 5 are locked, the telescopic pipe 5 is fixed on the inner pipe 6, and then the relative position of the ball head vertical milling cutter body 1 on the sleeve 3 is locked; when the two clamping columns 15 move towards each other, the two clamping columns can be separated from the clamping holes 17 in the telescopic pipe 5, and the telescopic pipe 5 can move relative to the inner pipe 6 for unlocking the telescopic pipe 5 and the inner pipe 6, namely the ball head vertical milling cutter body 1 can stretch relative to the sleeve 3, so that the length of the cutter body can be adjusted; so that the length of the cutter body of the ball head vertical milling cutter body 1 can be adjusted; the number of the clamping columns 15 is two, the two clamping columns 15 are symmetrically arranged around the horizontal central line of the driven shaft 11, after the two clamping columns 15 pass through the through groove 16 and enter the clamping hole 17, the inner pipe 6 and the telescopic pipe 5 are connected firmly and stably, the end parts of the clamping columns 15 are arc-shaped surfaces, anti-slip grains are arranged on the surfaces of the clamping columns 15, the clamping columns 15 can enter the clamping hole 17 more easily through the arrangement of the arc-shaped surfaces, the anti-slip grains are arranged on the clamping columns, the clamping columns 15 are not prone to sliding in the through groove 16, the clamping holes 17 and the space 17, and the clamping and locking effect is better; logical groove 16 has been seted up on the surface of inner tube 6, the surface of card post 15 run through casing 9 and with the inner wall sliding connection who leads to groove 16, block hole 17 has been seted up to the inner wall of flexible pipe 5, ten are no less than to the quantity in block hole 17, and a plurality of block hole 17 equidistance is seted up on telescopic 3's inner wall, ten are no less than through the quantity in block hole 17, and the equidistance is seted up, make flexible pipe 5 have more length location to select, greatly increased the suitability when ball head end milling cutter body 1 uses, the surface of card post 15 tip and the inner wall swing joint in block hole 17.

The working principle is as follows: when the ball end mill with the adjustable cutter body length is used, the damping rotary rod 8 is manually driven to rotate, so that the driven shaft 11 on the left end of the damping rotary rod 8 rotates coaxially with the damping rotary rod, the rotary disc 12 on the driven shaft 11 also rotates coaxially with the damping rotary rod, and the clamping column 15 cannot rotate together with the rotary disc 12 through the sliding column 14 due to the fact that the clamping column 15 moves in the through groove 16, and relative sliding is generated between the sliding column 14 and the rotary disc 12; after the rotary disc 12 and the driven shaft 11 synchronously rotate, under the guide of the spiral groove 13 on the rotary disc 12, the two clamping columns 15 simultaneously move in the opposite direction and move away from each other; when the two clamping columns 15 move away from each other, the two clamping columns penetrate through the through groove 16 and finally enter the clamping holes 17 in the telescopic pipe 5, the inner pipe 6 and the telescopic pipe 5 are locked, the telescopic pipe 5 is fixed on the inner pipe 6, and then the relative position of the ball head vertical milling cutter body 1 on the sleeve 3 is locked; when the two clamping columns 15 move towards each other, the two clamping columns can be separated from the clamping holes 17 in the telescopic pipe 5, and the telescopic pipe 5 can move relative to the inner pipe 6 for unlocking the telescopic pipe 5 and the inner pipe 6, namely the ball head vertical milling cutter body 1 can stretch relative to the sleeve 3, so that the length of the cutter body can be adjusted; so that the length of the cutter body of the ball head vertical milling cutter body 1 can be adjusted; through the cooperation use between the above-mentioned structure, solved in the in-service use because the screw is firm inadequately to the fixed centre gripping of ball end mill cutter body, and need extra instrument to assist the dismouting when changing, comparatively waste time and energy, the problem of inconvenience is brought for the use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a bulb end mill of adjustable blade length, includes that bulb end mill body (1), its characterized in that: the right end of the ball head vertical milling cutter body (1) is fixedly connected with an adjusting device (2), the adjusting device (2) comprises a sleeve (3), the left end of the sleeve (3) is movably connected with the right end of the ball head vertical milling cutter body (1), the left end of the sleeve (3) is provided with a through hole I (4), the inner wall of the through hole I (4) is connected with a telescopic pipe (5) in a sliding mode, and the left end of the telescopic pipe (5) is fixedly connected with the right end of the ball head vertical milling cutter body (1);

the inner wall of the telescopic pipe (5) is connected with an inner pipe (6) in a sliding manner, the right end of the inner pipe (6) is fixedly connected with the right side of the inner wall of the sleeve (3), a through hole II (7) is formed in the right end of the sleeve (3), a damping rotary rod (8) is arranged on the inner wall of the through hole II (7) in a limiting and rotating manner, a shell (9) is fixedly connected with the inner wall of the inner pipe (6) close to the left end, the surface of the damping rotary rod (8) close to the left end penetrates through the shell (9) and rotates on the shell (9) in a limiting manner, a supporting plate (10) is rotatably connected with the left end of the damping rotary rod (8), the surface of the supporting plate (10) is fixedly connected with the inner wall of the shell (9), a driven shaft (11) is fixedly connected with the circle center of the left end of the damping rotary rod (8), and a, spiral groove (13) have been seted up on the right side of carousel (12), the inner wall sliding connection of spiral groove (13) has traveller (14), the right-hand member fixedly connected with card post (15) of traveller (14), logical groove (16) have been seted up on the surface of inner tube (6), the surface of card post (15) run through casing (9) and with the inner wall sliding connection who leads to groove (16), block hole (17) have been seted up to the inner wall of flexible pipe (5), the surface of card post (15) tip and the inner wall swing joint in block hole (17).

2. The ball nose end mill of claim 1, wherein: the surface of the sleeve (3) is provided with a holding groove, and the inner wall of the holding groove on the sleeve (3) is provided with anti-skid grains.

3. The ball nose end mill of claim 1, wherein: the surface of the extension tube (5) is fixedly connected with a sliding block (18), and the inner wall of the sleeve (3) is provided with a limiting groove (19) for the sliding block (18) to slide left and right.

4. A ball nose end mill with an adjustable blade length according to claim 3, wherein: the number of the sliding blocks (18) is two, and the two sliding blocks (18) are symmetrically arranged by the horizontal central line of the damping rotary rod (8).

5. A ball nose end mill with an adjustable blade length according to claim 3, wherein: the end part of the sliding block (18) is an arc-shaped surface, and the sliding block (18) is connected with the inner wall of the limiting groove (19) in a sliding mode through the arc-shaped surface on the sliding block.

6. The ball nose end mill of claim 1, wherein: the surface of the damping rotary rod (8) is fixedly connected with two limiting rings (20), and the opposite sides of the two limiting rings (20) are respectively connected with the right side of the sleeve (3) and the right side of the inner wall of the sleeve (3) in a rotating mode.

7. The ball nose end mill of claim 1, wherein: the right end of the damping rotary rod (8) is fixedly connected with a handrail block (21), and anti-skid grains are formed in the surface of the handrail block (21).

8. The ball nose end mill of claim 1, wherein: the number of the clamping columns (15) is two, and the two clamping columns (15) are symmetrically arranged by using the horizontal central line of the driven shaft (11).

9. The ball nose end mill of claim 1, wherein: the end part of the clamping column (15) is an arc-shaped surface, and anti-skid grains are arranged on the surface of the clamping column (15).

10. The ball nose end mill of claim 1, wherein: the number of the clamping holes (17) is not less than ten, and the clamping holes (17) are arranged on the inner wall of the sleeve (3) at equal intervals.

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