CN213002892U - Anti-drop's hardness twolip end mill - Google Patents

Abstract

The utility model discloses an anti-drop's two sword end mill of hardness, including handle of a knife base and cutter arbor, the spacing groove has been seted up on the handle of a knife base, and spacing groove tank bottom fixedly connected with spring, and the spring keeps away from the one end fixedly connected with dog of spacing groove tank bottom, fixedly connected with handle of a knife main part on the handle of a knife base is close to the lateral wall of spacing groove, and has seted up the round hole in the handle of a knife main part, and the diameter of round hole is unanimous with the diameter of cutter arbor, a plurality of straight flutes have been seted up on the lateral wall of round hole, and the straight flute runs through the setting of handle of a knife main part, a plurality of arcs have been seted up on the lateral wall of round hole, and the one end and the straight flute of a plurality of arcs are linked together the setting, the square hole. The utility model relates to a milling cutter assembly technical field utilizes the function of realizing the auto-lock when threaded connection fastening cutter arbor, prevents that the cutter arbor from rotating the in-process and receiving vibrations and coming off.

Description

Anti-drop's hardness twolip end mill

Technical Field

The utility model relates to a milling cutter assembly technical field specifically is an anti-drop's hardness twolip end mill.

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.

When the milling cutter has a large diameter, even if the shank and the holder are clean, a tool-dropping accident may occur, and the tool has to be replaced with a new one, and damage to the manufactured product is irreparable.

To solve the above problem, we propose a drop-resistant hard two-edged end mill.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-drop's two sword of hardness end mill to solve the problem that the vertical milling cutter on the existing market that above-mentioned background art provided drops easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anti-falling hardness two-edge end mill comprises a cutter handle base and a cutter rod, wherein a limiting groove is formed in the cutter handle base, a spring is fixedly connected to the bottom of the limiting groove, a stop block is fixedly connected to one end, far away from the bottom of the limiting groove, of the spring, a cutter handle main body is fixedly connected to the side wall, close to the limiting groove, of the cutter handle base, a round hole is formed in the cutter handle main body, the diameter of the round hole is consistent with that of the cutter rod, a plurality of straight grooves are formed in the side wall of the round hole and penetrate through the cutter handle main body, a plurality of arc-shaped grooves are formed in the side wall of the round hole, one ends of the arc-shaped grooves are communicated with the straight grooves, a square hole is formed in the bottom of the arc-shaped grooves, the square hole is opposite to the limiting groove, a limiting block is inserted into the square hole in a, and the sliding hole is communicated with the round hole, a sliding block is connected in the sliding hole in a sliding manner, the sliding block and the limiting block are fixedly connected, one end of the knife handle main body, far away from the knife handle base, of the knife handle is connected with a knife handle joint, threads are formed in the knife handle joint, a lock sleeve is connected to the knife handle joint in a threaded manner, one side of the lock sleeve is fixedly connected with a limiting ring, single-rotation limiting teeth are arranged on the limiting ring, one side of the lock sleeve, far away from the limiting ring, is fixedly connected with a fastening sleeve, the fastening sleeve is arranged in a hollow boss shape, one end of the fastening sleeve, far away from the lock sleeve, is provided with a through hole, the through hole is matched with the knife rod, a spring jacket is arranged between the fastening sleeve and the knife handle joint, one end of the knife.

Preferably, a boss hole is formed in the tool shank joint and is matched with the spring jacket, and the fastening sleeve is matched with the spring jacket.

Preferably, the inner wall diameter of the spring jacket is 1-2mm larger than the diameter of the cutter shaft.

Preferably, the distance between the side wall of the arc-shaped groove far away from the straight groove and the limiting block is consistent with the size of the fixing block.

Preferably, an installation groove is formed in the side wall of one end of the arc-shaped groove, and a rubber gasket is fixedly installed in the installation groove.

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

1. the self-locking function of threaded connection is realized through the limiting ring, the limiting teeth, the sliding block, the limiting block, the stop block and the spring, when an operator rotates the lock sleeve to enable the spring jacket to be fastened more and more, the limiting ring can approach the base of the tool shank along with the lock sleeve, when the limiting ring contacts the sliding block, the sliding block can be pushed to slide, the sliding block is fixedly connected with the limiting block, when the limiting block contacts the stop block, the spring starts to be compressed, the lock sleeve is screwed up again, the limiting teeth can interact with the sliding block, at the moment, the lock sleeve cannot rotate reversely, if the lock sleeve needs to rotate reversely, the sliding block needs to be abutted by hand first, and the arrangement ensures that the lock sleeve cannot fall off easily in the;

2. through the fixed block, the slider, the stopper, the arc wall, straight flute and spacing groove, prevent that the cutter arbor from taking place the rotation each other with the handle of a knife main part in the course of the work, lead to the not good damage of cutter even of processing effect, back in the cutter arbor inserts the round hole, the cutter arbor rotates, make the fixed block slide in the arc wall and contact with one side lateral wall of arc wall, in fastening process, the spacing ring can promote the slider and slide, then make the stopper slide and block into in the spacing groove, the fixed block is in the centre by stopper and arc wall card this moment, make cutter arbor and handle of a knife main part remain the stationary state throughout.

Drawings

Fig. 1 is a schematic structural view of an anti-drop hard two-edge end mill provided by the present invention;

fig. 2 is a schematic view of a lock sleeve structure of an anti-drop hard two-edge end mill provided by the utility model;

fig. 3 is a schematic view of a cutter bar structure of an anti-drop hard two-edge end mill provided by the present invention;

FIG. 4 is a schematic view of the main structure of the tool holder of the anti-drop hard two-edge end mill provided by the present invention;

fig. 5 is the utility model provides an anti-drop's hardness twolip end mill's handle of a knife base section structure sketch map.

In the figure: 1. a knife handle base; 2. a knife handle main body; 3. a circular hole; 4. a straight groove; 5. an arc-shaped slot; 6. a limiting block; 7. a slide hole; 8. a slider; 9. a tool shank joint; 10. a spring jacket; 11. a lock sleeve; 12. a limiting ring; 13. limiting teeth; 14. fastening sleeves; 15. a through hole; 16. a cutter bar; 17. a fixed block; 18. a spring; 19. a stopper; 20. a limiting groove.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, an anti-falling hardness two-edge end mill comprises a holder base 1 and a cutter bar 16, wherein a limiting groove 20 is formed on the holder base 1, a spring 18 is fixedly connected to the bottom of the limiting groove 20, a stop 19 is fixedly connected to one end of the spring 18 away from the bottom of the limiting groove 20, a holder main body 2 is fixedly connected to the side wall of the holder base 1 close to the limiting groove 20, a circular hole 3 is formed in the holder main body 2, the diameter of the circular hole 3 is consistent with that of the cutter bar 16, a plurality of straight grooves 4 are formed in the side wall of the circular hole 3, the straight grooves 4 penetrate through the holder main body 2, a plurality of arc grooves 5 are formed in the side wall of the circular hole 3, a mounting groove is formed in one end of the arc grooves 5, and a rubber gasket is fixedly mounted in the mounting groove, so that the fixing block 17 can relieve the, and one end of the arc grooves 5 is communicated with the straight groove 4, the bottom of the arc grooves 5 is provided with a square hole which is opposite to the limit groove 20, the limit block 6 is inserted in the square hole in a sliding way, the distance between the side wall of the arc grooves 5 far away from the straight groove 4 and the limit block 6 is consistent with the size of the fixed block 17, the fixed block 17 is more stable and can not rotate when being clamped between the side wall of the arc grooves 5 and the limit block 6 due to the arrangement, the limit block 6 is matched with the limit groove 20, the side wall of the knife handle main body 2 is provided with a sliding hole 7, the sliding hole 7 is communicated with the round hole 3, the sliding block 8 is connected in the sliding hole 7 in a sliding way, the sliding block 8 and the limit block 6 are fixedly connected with the knife handle, one end of the knife handle main body 2 far away from the base 1 is fixedly connected with a knife handle joint 9, the knife handle, the boss hole is matched with the spring jacket 10, the fastening sleeve 14 is matched with the spring jacket 10, the spring jacket 10 is more firmly arranged between the fastening sleeve 14 and the handle joint 9 to reduce the deformation when the handle joint 9 is vibrated, the lock sleeve 11 is in threaded connection with the handle joint 9, one side of the lock sleeve 11 is fixedly connected with the limiting ring 12, the limiting ring 12 is provided with a single-rotation limiting tooth 13, one side of the lock sleeve 11, which is far away from the limiting ring 12, is fixedly connected with the fastening sleeve 14, the fastening sleeve 14 is arranged in a hollow boss shape, one end of the fastening sleeve 14, which is far away from the lock sleeve 11, is provided with a through hole 15, the through hole 15 is matched with the cutter bar 16, the spring jacket 10 is arranged between the fastening sleeve 14 and the handle joint 9, the diameter of the inner wall of the spring jacket 10 is 1-2mm larger than the diameter of the cutter bar 16, and the, and the vibration that enables cutter arbor 16 to receive in the course of the work can be alleviated, reducing wear, and the one end fixedly connected with of cutter arbor 16 has a plurality of fixed blocks 17, and fixed block 17 and straight flute 4 and arc wall 5 phase-match set up.

In the utility model, when the operator installs, the operator needs to align the fixed block 17 fixedly connected with the cutter bar 16 with the straight groove 4, then insert the circular hole 3, then rotate the cutter bar 16 to make the fixed block 17 slide in the arc-shaped groove 5 and contact with one side wall of the arc-shaped groove 5, then sleeve the spring jacket 10 and the lock sleeve 11 in sequence, and rotate the lock sleeve 11 to make the spring jacket 10 fasten more and more, at this time, the limit ring 12 will push the slider 8 to slide, then the limit block 6 will slide and clip into the limit groove 20, at this time, the fixed block 17 is clipped in the middle by the limit block 6 and the arc-shaped groove 5 side wall, when the limit block 6 contacts the stop block 19, the spring 18 starts to be compressed, tighten the lock sleeve 11 again, the limit tooth 13 will interact with the slider 8, at this time, the lock sleeve 11 can not rotate reversely again, continue to use the wrench to tighten the lock sleeve 11, the assembly, the worker needs to firstly support the sliding block 8 by hand, then the locking sleeve 11 is rotated reversely by using a wrench, the locking sleeve 11 and the spring jacket 10 can be sequentially detached, then the sliding block 8 is slid to the lowest end, the cutter bar 16 can be rotated reversely, and the cutter bar 16 can be taken out.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. An anti-falling hardness two-edge end mill comprises a cutter handle base (1) and a cutter rod (16), and is characterized in that a limiting groove (20) is formed in the cutter handle base (1), a spring (18) is fixedly connected to the bottom of the limiting groove (20), a stop block (19) is fixedly connected to one end, away from the bottom of the limiting groove (20), of the spring (18), a cutter handle main body (2) is fixedly connected to the side wall, close to the limiting groove (20), of the cutter handle base (1), a round hole (3) is formed in the cutter handle main body (2), the diameter of the round hole (3) is consistent with that of the cutter rod (16), a plurality of straight grooves (4) are formed in the side wall of the round hole (3), the cutter handle main body (2) penetrates through the straight grooves (4), a plurality of arc-shaped grooves (5) are formed in the side wall of the round hole (3), and one ends of the plurality of the arc-shaped grooves (5, a square hole is formed in the bottom of the arc-shaped groove (5), the square hole is arranged opposite to the limiting groove (20), a limiting block (6) is inserted into the square hole in a sliding mode, the limiting block (6) is matched with the limiting groove (20), a sliding hole (7) is formed in the side wall of the knife handle main body (2), the sliding hole (7) is communicated with the round hole (3), a sliding block (8) is connected into the sliding hole (7) in a sliding mode, the sliding block (8) is fixedly connected with the limiting block (6), a knife handle joint (9) is fixedly connected to one end, away from the knife handle base (1), of the knife handle main body (2), threads are formed in the knife handle joint (9), a lock sleeve (11) is connected to the knife handle joint (9) through threads, a limiting ring (12) is fixedly connected to one side of the lock sleeve (11), and a single-rotating limiting tooth (13) is arranged on the limiting ring (12, one side fixedly connected with adapter sleeve (14) of spacing ring (12) is kept away from in lock sleeve (11), and adapter sleeve (14) are the setting of cavity boss form, through-hole (15) have been seted up to the one end that lock sleeve (11) were kept away from in adapter sleeve (14), and through-hole (15) and cutter arbor (16) phase-match set up, be provided with spring jacket (10) between adapter sleeve (14) and handle of a knife joint (9), a plurality of fixed blocks (17) of one end fixedly connected with of cutter arbor (16), and fixed block (17) and straight flute (4) and arc wall (5) phase-match set up.

2. The anti-drop hardness two-edge end mill according to claim 1, wherein a boss hole is formed in the shank adapter (9), the boss hole is matched with the spring jacket (10), and the fastening sleeve (14) is matched with the spring jacket (10).

3. A drop-resistant solid two-edged end mill according to claim 1, wherein the inner wall diameter of the spring jacket (10) is 1-2mm larger than the diameter of the shank (16).

4. The anti-drop hardness two-edge end mill according to claim 1, wherein the distance between the side wall of the arc-shaped groove (5) far away from the straight groove (4) and the limiting block (6) is consistent with the size of the fixing block (17).

5. The anti-drop hardness two-edge end mill according to claim 1, wherein a mounting groove is formed on one end side wall of the arc-shaped groove (5), and a rubber gasket is fixedly mounted in the mounting groove.

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