Hard alloy milling cutter with protection function

Abstract

The utility model belongs to the technical field of machining cutters, in particular to a hard alloy milling cutter with a protection function, which comprises a cutter bar, a milling cutter head fixed at the bottom end of the cutter bar and a clamping bar fixed at the top end of the cutter bar, and further comprises a flexible protective cover which is trumpet-shaped and is detachably mounted on the milling cutter head; the soft magnetic strip is bonded and fixed on the inner wall of the flexible protective cover; the auxiliary ring is integrally formed at the bottom end of the flexible protective cover, and the section of the auxiliary ring is semicircular; according to the hard alloy milling cutter, through the arrangement of the flexible protective cover and the soft magnetic strip, on one hand, normal work of the hard alloy milling cutter is not affected, on the other hand, the hard alloy milling cutter can be protected, metal chippings are prevented from splashing, the metal chippings are adsorbed through the soft magnetic strip, cleaning is easy, and the flexible protective cover is detachable; and the damaged flexible protective cover and the damaged soft magnetic strip are convenient to disassemble, clean or replace.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining tool, concretely relates to a hard alloy milling cutter with protection function. BACKGROUND

[0002] Tungsten steel hard alloy cutter is a cutter with tungsten steel (hard alloy) as material, has a series of excellent performance such as high hardness, high wear resistance, good strength and toughness, heat resistance and corrosion resistance, and tungsten steel cutter is especially suitable for high speed cutting and heavy cutting, can keep high hardness even under high temperature environment.

[0003] Milling cutter is a very common machining tool, and the milling cutter is a rotary cutter for milling machining, has one or more cutter teeth, and each cutter tooth intermittently cuts the excess of the workpiece in turn during work, and the milling cutter is mainly used for machining plane, step, groove, shaped surface and cutting off workpiece on the milling machine.

[0004] In the prior art, the milling cutter needs to rotate at high speed during work, but the milling cutter currently lacks protection function, and metal scraps generated during processing can splash everywhere, which is inconvenient for subsequent cleaning.

[0005] To solve the above problems, the utility model provides a hard alloy milling cutter with protection function. CONTENT OF THE UTILITY MODEL

[0006] To solve the above problems in the prior art, the utility model provides a hard alloy milling cutter with protection function, which has the characteristics of convenient use, high safety performance and easy cleaning.

[0007] To achieve the above object, the utility model provides the following technical scheme: a hard alloy milling cutter with protection function, including cutter bar, milling cutter head fixed at the bottom end of the cutter bar and clamping rod fixed at the top end of the cutter bar, further comprising:

[0008] Flexible protective cover, the flexible protective cover is trumpet-shaped and is detachably installed on the milling cutter head;

[0009] Soft magnetic strip, the soft magnetic strip is adhesively fixed to the inner wall of the flexible protective cover;

[0010] Auxiliary ring, the auxiliary ring is integrally formed at the bottom end of the flexible protective cover, and the cross section of the auxiliary ring is semicircular.

[0011] As a preferred technical scheme of the utility model, further comprising:

[0012] No. 1 locking bolt, threaded hole is processed on the milling cutter head, and the no. 1 locking bolt is screwed into the threaded hole in a threaded screwing mode after penetrating the flexible protective cover.

[0013] As a preferred technical scheme of the utility model, two one locking bolts are symmetrically distributed.

[0014] As a preferred technical scheme of the utility model, further comprising:

[0015] The positioning ring is fixed to the outer wall of the milling cutter head and is used for positioning the installation position of the flexible protective cover.

[0016] As a preferred technical scheme of the utility model, further comprising:

[0017] The connecting rod is fixed to the end of the milling cutter head, and a plurality of positioning grooves are formed on the connecting rod and are equidistantly distributed along the length direction of the connecting rod.

[0018] The second locking bolt is installed on the milling rod by screwing, and the end of the second locking bolt is embedded in the positioning groove.

[0019] As a preferred technical scheme of the utility model, the outer wall of the connecting rod abuts against the inner wall of the connecting cavity.

[0020] As a preferred technical scheme of the utility model, the cross section of the connecting rod and the connecting cavity are both regular hexagonal structures.

[0021] As a preferred technical scheme of the utility model, further comprising:

[0022] The first connecting flange is fixed to one end of the milling rod away from the milling cutter head.

[0023] The second connecting flange is fixed to one end of the clamping rod.

[0024] The third locking bolt is equidistantly distributed along the circumferential direction, and the third locking bolt penetrates the first connecting flange and the second connecting flange.

[0025] The locking nut is installed on the protruding end of the third locking bolt by screwing.

[0026] Compared with the prior art, the utility model has the beneficial effects that:

[0027] In the utility model, the flexible protective cover and the soft magnetic strip are arranged, on one hand, the normal work of the hard alloy milling cutter is not affected, on the other hand, the hard alloy milling cutter can be protected, metal scraps are avoided from splashing, the metal scraps are adsorbed through the soft magnetic strip, are easy to clean, the flexible protective cover is detachable, and it is convenient to detach and clean or replace the damaged flexible protective cover and soft magnetic strip.

[0028] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0032] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0033] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B in the diagram;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of the tool holder in this utility model;

[0035] Figure 6 This utility model Figure 5 Enlarged structural diagram at point C;

[0036] Figure 7 This utility model Figure 5 A magnified structural diagram at point D in the diagram.

[0037] In the diagram: 1. Tool holder; 11. Connecting cavity; 12. Connecting flange No. 1; 2. Clamping rod; 21. Connecting flange No. 2; 3. Milling cutter head; 31. Positioning ring; 32. Threaded hole; 33. Connecting rod; 331. Positioning groove; 4. Flexible protective cover; 41. Soft magnetic strip; 42. Auxiliary ring; 5. Locking bolt No. 1; 6. Locking bolt No. 2; 7. Locking bolt No. 3; 8. Locking nut. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please refer to Figures 1-7 The utility model provides the following technical scheme: A hard alloy milling cutter with a protection function, comprising a cutter bar 1, a milling cutter head 3 fixed to the bottom end of the cutter bar 1, and a clamping rod 2 fixed to the top end of the cutter bar 1, further comprising: a flexible protective cover 4, a soft magnetic strip 41, and an auxiliary ring 42.

[0040] Further, as shown in Figure 1 , Figure 2 and Figure 4 , in the embodiment, the flexible protective cover 4 is trumpet-shaped and is detachably mounted on the milling cutter head 3, the soft magnetic strip 41 is adhesively fixed to the inner wall of the flexible protective cover 4, and the auxiliary ring 42 is integrally formed at the bottom end of the flexible protective cover 4, and the cross section of the auxiliary ring 42 is semicircular. After the above scheme is used, in use, the hard alloy milling cutter is fixed to the output shaft of a machine tool by the clamping rod 2, and the milling cutter head 3 is controlled by the output shaft of the machine tool to realize milling work. During processing, the metal chips generated are blocked by the flexible protective cover 4 and are adsorbed by the soft magnetic strip 41, so that the metal chips are prevented from flying everywhere and are easy to clean. The flexible protective cover 4 is detachable, which facilitates the disassembly, cleaning, or replacement of the damaged flexible protective cover 4 and soft magnetic strip 41.

[0041] It should be noted that, in another aspect of the utility model, because the flexible protective cover 4 and the soft magnetic strip 41 are both flexible materials, they can deform, so as not to affect the normal milling operation of the hard alloy milling cutter. The flexible protective cover 4 can be made of common rubber or silicone.

[0042] It is worth noting that the auxiliary ring 42 is provided, and the cross section of the auxiliary ring 42 is semicircular, which can effectively reduce the contact area between the auxiliary ring 42 and the workpiece, and only line contact exists between the auxiliary ring 42 and the workpiece, so that the sliding friction generated during work is small.

[0043] Optionally, as shown in Figures 1-3 , in the embodiment, further comprising: a first locking bolt 5, a threaded hole 32 is formed on the milling cutter head 3, and the first locking bolt 5 is screwed into the threaded hole 32 after penetrating through the flexible protective cover 4. After the above scheme is used, in use, the flexible protective cover 4 of the utility model is fixed by the first locking bolt 5, which facilitates the disassembly of the flexible protective cover 4 under the premise of ensuring the stable installation of the flexible protective cover 4, and facilitates the disassembly, cleaning, or replacement of the damaged flexible protective cover 4 and soft magnetic strip 41.

[0044] Preferably, as shown in Figures 1-3 , in the embodiment, the first locking bolt 5 is symmetrically distributed in two, which ensures the stability of the installation of the flexible protective cover 4.

[0045] Preferably, as shown in Figures 1-3As shown, in the embodiment, the positioning ring 31 is fixed to the outer wall of the milling cutter head 3, and is used to position the installation position of the flexible protective cover 4. After the above scheme is used, in use, the positioning ring 31 can preferably ensure the reliability of the installation position of the flexible protective cover 4.

[0046] Preferably, the flexible protective cover 4 is made of rubber. Figure 1 、 Figure 5 and Figure 6 As shown, in the embodiment, the connecting rod 33 is fixed to the end of the milling cutter head 3, and a plurality of positioning grooves 331 are formed on the connecting rod 33 and are distributed at equal intervals along the length direction of the connecting rod 33. The connecting rod 33 is embedded in the connecting cavity 11 in the tool bar 1. The second locking bolt 6 is installed on the tool bar 1 in a threaded screwing manner, and the end of the second locking bolt 6 is embedded in the positioning groove 331. After the above scheme is used, in use, the connecting rod 33 is embedded in the connecting cavity 11, and the second locking bolt 6 is tightened to realize the installation of the milling cutter head 3. On the premise of ensuring the stable installation of the milling cutter head 3, the damaged milling cutter head 3 can also be conveniently disassembled and replaced, thereby reducing the use and maintenance costs. In addition, the second locking bolt 6 is loosened, the second locking bolt 6 is separated from the positioning groove 331, the embedded amount of the connecting rod 33 can be adjusted, the length of the milling cutter can be adjusted to meet different use needs, and after the adjustment is completed, the second locking bolt 6 is tightened again, and the end of the second locking bolt 6 is embedded in the positioning groove 331 at different positions to be locked.

[0047] Preferably, the flexible protective cover 4 is made of rubber. Figure 1 、 Figure 5 and Figure 6 As shown, in the embodiment, the outer wall of the connecting rod 33 abuts against the inner wall of the connecting cavity 11. After the above scheme is used, in use, the stability of the connection between the milling cutter head 3 and the tool bar 1 can be further improved, and relative shaking between the milling cutter head 3 and the tool bar 1 during work can be avoided.

[0048] Preferably, the flexible protective cover 4 is made of rubber. Figure 1 、 Figure 5 and Figure 6 As shown, in the embodiment, the cross section of the connecting rod 33 and the connecting cavity 11 are both regular hexagonal structures. In use, the stability of the connection between the milling cutter head 3 and the tool bar 1 can be further improved, and relative rotation between the milling cutter head 3 and the tool bar 1 during work can be avoided.

[0049] Preferably, the flexible protective cover 4 is made of rubber. Figure 1 、 Figure 5 and Figure 7The embodiment shown further comprises a first connecting flange 12, a second connecting flange 21, a third locking bolt 7 and a locking nut 8, the first connecting flange 12 is fixed to one end of the cutter bar 1 away from the milling cutter head 3, the second connecting flange 21 is fixed to one end of the clamping rod 2, a plurality of third locking bolts 7 are distributed at equal intervals in the circumferential direction, and the third locking bolts 7 penetrate the first connecting flange 12 and the second connecting flange 21, and the locking nut 8 is installed on the protruding end of the third locking bolt 7 in a threaded screwing manner.

[0050] Components not described in detail herein are prior art.

[0051] The working principle and use process of the hard alloy milling cutter are as follows: in use, the hard alloy milling cutter is fixed to the output shaft of the machine tool by the clamping rod 2, and the milling cutter head 3 is controlled by the output shaft of the machine tool to realize milling work.

[0052] During machining, the metal chips generated are blocked by the flexible protective cover 4, and part of the metal chips are adsorbed by the soft magnetic strips 41, so that the metal chips are prevented from flying everywhere, and the flexible protective cover 4 can be easily cleaned or replaced.

[0053] In another aspect of the utility model, the milling cutter head 3 is detachably installed, the second locking bolt 6 is loosened, the second locking bolt 6 is separated from the positioning groove 331, the embedding amount of the connecting rod 33 can be adjusted, the length of the milling cutter is adjusted, different use needs are met, and after adjustment, the second locking bolt 6 is tightened again.

[0054] In another aspect of the utility model, the first connecting flange 12, the second connecting flange 21, the third locking bolt 7 and the locking nut 8 are used to install the clamping rod 2, the clamping rod 2 is stably installed, the damaged clamping rod 2 is conveniently disassembled and replaced, or different clamping rods 2 are replaced according to different installation scenes.

[0055] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A hard metal milling cutter with a protective function, comprising a cutter shank (1), a milling head (3) fixed to the bottom end of the cutter shank (1), and a clamping shank (2) fixed to the top end of the cutter shank (1), characterized in that, Also include: Flexible protective cover (4), the flexible protective cover (4) is trumpet-shaped and is detachably mounted on the milling cutter head (3); Soft magnetic strip (41), the soft magnetic strip (41) is adhesively fixed to the inner wall of the flexible protective cover (4); Auxiliary ring (42), the auxiliary ring (42) is integrally formed at the bottom end of the flexible protective cover (4), and the section of the auxiliary ring (42) is semicircular.

2. The hard metal milling cutter with a protective function according to claim 1, characterized in that: Also include: A locking bolt (5), a threaded hole (32) is formed on the milling cutter head (3), the locking bolt (5) is screwed into the threaded hole (32) through the flexible protective cover (4) by threaded connection.

3. The hard metal milling cutter with a protective function according to claim 2, characterized in that: The first locking bolt (5) is symmetrically distributed with two.

4. The hard metal milling cutter with a protective function according to claim 1, characterized in that: Also include: Positioning ring (31), the positioning ring (31) is fixed to the outer wall of the milling cutter head (3), which is used for positioning the installation position of the flexible protective cover (4).

5. The hard metal milling cutter with a protective function according to claim 1, characterized in that: Also include: Connecting rod (33), the connecting rod (33) is fixed to the end of the milling cutter head (3), and a plurality of positioning grooves (331) are formed on the connecting rod (33) and are equally spaced along the length direction of the connecting rod (33), and the connecting rod (33) is embedded in the connecting cavity (11) in the tool bar (1); Second locking bolt (6), the second locking bolt (6) is installed on the tool bar (1) by threaded connection, and the end of the second locking bolt (6) is embedded in the positioning groove (331).

6. The hard metal milling cutter with a protective function according to claim 5, characterized in that: The outer wall of the connecting rod (33) abuts against the inner wall of the connecting cavity (11).

7. The hard metal milling cutter with a protective function according to claim 6, characterized in that: The section of the connecting rod (33) and the connecting cavity (11) are both regular hexagonal structures.

8. The hard metal milling cutter with a protective function according to claim 1, characterized in that: Also include: First connecting flange (12), the first connecting flange (12) is fixed to one end of the tool bar (1) away from the milling cutter head (3); Second connecting flange (21), the second connecting flange (21) is fixed to one end of the clamping rod (2); Third locking bolt (7), a plurality of third locking bolts (7) are equally spaced in the circumferential direction, and the third locking bolts (7) penetrate the first connecting flange (12) and the second connecting flange (21); Locking nut (8), the locking nut (8) is installed on the protruding end of the third locking bolt (7) by threaded connection.

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