Hard alloy cutter easy to assemble

Abstract

The utility model belongs to the technical field of machining tools, and particularly relates to a hard alloy tool easy to assemble, which comprises a tool bar with a cavity, a cutting tool bit and a clamping rod, and further comprises an adapter rod, an adapter sleeve, a clamping rod and a connecting rod, a second threaded counter bore is machined in the fixing sleeve, and the switching rod is partially embedded into the fixing sleeve; the adapter rod is partially embedded into the cutter bar, and a plurality of positioning grooves which are distributed at equal intervals in the length direction of the adapter rod are machined in the adapter rod; according to the cutting tool, the adapter rod is used for connecting the tool bar and the cutting tool bit, the first countersunk head screw and the second countersunk head screw are used for locking, on the premise that stable connection is guaranteed, the cutting tool bit which is seriously abraded can be conveniently detached and replaced, meanwhile, the length of the whole tool can be adjusted according to the actual machining scene, and therefore the machining efficiency is improved. And a plurality of adapter rods can be in butt joint end to end, so that the length of the cutter is further increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining tool, specifically relates to a hard alloy tool easy to assemble. BACKGROUND

[0002] The hard alloy tool is made of hard alloy material with extremely high hardness, and the material has the advantages of high strength, good toughness, wear resistance and corrosion resistance, and is widely used in cutting.

[0003] In actual use, since the tool head is used to process the workpiece during the cutting process, the tool head is usually worn out quickly, and the prior art usually designs the tool head and the tool rod as a split structure, so as to facilitate the separate disassembly and replacement of the severely worn tool head, and reduce the use and maintenance cost.

[0004] For example, in the prior art, the Chinese utility model patent with the authorization announcement number CN221620870U discloses "a hard alloy tool head convenient to disassemble and install", which comprises a tool rod, the rear end of the tool rod is fixedly connected with a positioning ball, the front end of the tool rod is fixedly connected with an alloy tool head, a blade clamping groove is formed in the surface of the alloy tool head, a blade is slidably connected in the blade clamping groove, a sliding groove is formed in the alloy tool head, and a fixing device is arranged in the sliding groove.

[0005] The hard alloy tool in the prior art including the above has the advantage of easy replacement, but cannot adjust the length of the tool rod according to the actual processing scene, and has high use limitation.

[0006] To solve the above problems, the utility model provides a hard alloy tool easy to assemble. CONTENT OF THE UTILITY MODEL

[0007] To solve the above problems in the prior art, the utility model provides a hard alloy tool easy to assemble, which has the characteristics of convenient use, easy adjustment and wide application range.

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a hard alloy tool easy to assemble, comprising a tool rod with a cavity, a cutting tool head fixed to one end of the tool rod, and a clamping rod fixed to the other end of the tool rod, a fixing sleeve is fixed to the cutting tool head, and the hard alloy tool further comprises:

[0009] The adapter rod has a polygonal connecting groove at one end, a polygonal connecting block fixedly connected with the polygonal connecting groove at the other end, and an internal threaded hole formed in the polygonal connecting block;

[0010] A No. 1 countersunk head screw is provided with a No. 2 threaded countersunk hole on the fixing sleeve, the adapter rod is partially embedded in the fixing sleeve, and a limiting groove is formed on the adapter rod, the No. 1 countersunk head screw is screwed into the No. 2 threaded countersunk hole by screwing, and one end of the No. 1 countersunk head screw is embedded in the limiting groove;

[0011] A No. 2 countersunk head screw is provided with a No. 1 threaded countersunk hole on the tool bar, the adapter rod is partially embedded in the tool bar, and a plurality of positioning grooves are formed on the adapter rod and are equidistantly distributed along the length direction of the adapter rod, the No. 2 countersunk head screw is screwed into the No. 1 threaded countersunk hole by screwing, and one end of the No. 2 countersunk head screw is embedded in the positioning groove.

[0012] As a preferred technical scheme of the utility model, the No. 1 countersunk head screw and the No. 2 countersunk head screw are both symmetrically distributed with two.

[0013] As a preferred technical scheme of the utility model, the outer wall of the adapter rod abuts against the inner wall of the tool bar and the fixing sleeve.

[0014] As a preferred technical scheme of the utility model, the cross section of the polygonal connecting groove and the polygonal connecting block is a regular hexagonal structure.

[0015] As a preferred technical scheme of the utility model, further comprising:

[0016] Positioning convex strips, two positioning convex strips are symmetrically fixed to the outer wall of the adapter rod, a No. 1 positioning groove is formed on the inner wall of the tool bar for embedding the positioning convex strip, and a No. 2 positioning groove is formed on the inner wall of the fixing sleeve for embedding the positioning convex strip.

[0017] As a preferred technical scheme of the utility model, the clamping rod is detachably connected to the tool bar.

[0018] As a preferred technical scheme of the utility model, further comprising:

[0019] A No. 1 connecting flange is integrally formed at the end of the tool bar;

[0020] A No. 2 connecting flange is integrally formed at the end of the clamping rod;

[0021] Locking bolts, a plurality of locking bolts are equidistantly distributed in the circumferential direction and penetrate the No. 1 connecting flange and the No. 2 connecting flange;

[0022] Locking nuts, the locking nuts are installed on the protruding end of the locking bolt by screwing.

[0023] As a preferred technical scheme of the utility model, a plurality of chip grooves are distributed equidistantly along the circumferential direction on the circumferential surface of the cutting head.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] In the utility model, the adapter rod is used for connecting the cutter bar and the cutting head, and is locked through the No. 1 countersunk screw and the No. 2 countersunk screw, so that the cutting head with serious wear can be conveniently disassembled and replaced under the premise of ensuring stable connection, the length of the whole cutter can be adjusted according to the actual machining scene, and the length of the cutter can be further increased through butt joint of the plurality of adapter rods.

[0026] Other additional advantages and beneficial effects of the utility model will be partly given in the following description, will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation on the utility model. In the drawings:

[0028] Figure 1 It is the structural schematic diagram of the utility model;

[0029] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0030] Figure 3 It is the adapter rod axonometric structure schematic diagram in the utility model;

[0031] Figure 4 It is the cutting head axonometric structure schematic diagram in the utility model;

[0032] Figure 5 It is the A place enlarged structure schematic diagram in the utility model Figure 1

[0033] In the drawing: 1, cutter bar;11, No. 1 connecting flange;12, No. 1 threaded counterbore;13, No. 1 positioning groove;2, adapter rod;21, limit slot;22, positioning groove;23, polygonal connecting groove;24, polygonal connecting block;241, internal thread hole;25, positioning convex strip;3, cutting head;31, chip groove;32, fixed sleeve;321, No. 2 threaded counterbore;322, No. 2 positioning groove;4, clamping rod;41, No. 2 connecting flange;5, locking bolt;6, locking nut;7, No. 1 countersunk screw;8, No. 2 countersunk screw. DETAILED DESCRIPTION

[0034] ​The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] Please refer to Figures 1-5 The utility model provides the following technical scheme: a hard alloy cutter easy to assemble, including the cutter bar 1 with cavity, the cutting head 3 fixed in one end of cutter bar 1 and the clamping rod 4 fixed in the other end of cutter bar 1, the fixed sleeve 32 is fixed on the cutting head 3, further including: adapter rod 2, No. 1 countersunk screw 7 and No. 2 countersunk screw 8.

[0036] Further, as shown in Figures 1-3 In the embodiment, one end of the adapter rod 2 has a polygonal connecting groove 23, the other end is fixed with a polygonal connecting block 24 that fits the polygonal connecting groove 23, and an internal threaded hole 241 is machined on the polygonal connecting block 24. A No. 2 threaded countersunk hole 321 is machined on the fixed sleeve 32. The adapter rod 2 is partially embedded in the fixed sleeve 32, and a limiting groove 21 is machined on the adapter rod 2. The No. 1 countersunk screw 7 is screwed into the No. 2 threaded countersunk hole 321 by threaded engagement, and one end of the No. 1 countersunk screw 7 is embedded in the limiting groove 21. A No. 1 threaded countersunk hole 12 is machined on the cutter bar 1, and the adapter rod 2 is partially embedded in the cutter bar 1. A plurality of positioning grooves 22 are machined on the adapter rod 2 and are equally spaced along the length direction of the adapter rod 2. The No. 2 countersunk screw 8 is screwed into the No. 1 threaded countersunk hole 12 by threaded engagement, and one end of the No. 2 countersunk screw 8 is embedded in the positioning groove 22. After using the above scheme, one end of the adapter rod 2 is embedded in the cutter bar 1, and the other end is embedded in the fixed sleeve 32. The No. 2 countersunk screw 8 and the No. 1 countersunk screw 7 are tightened and locked, respectively. Under the premise of ensuring stable connection, it is also convenient to disassemble and replace the severely worn cutting head 3, which reduces the use and maintenance cost. When necessary, the No. 2 countersunk screw 8 is loosened first, so that the No. 2 countersunk screw 8 is separated from the positioning groove 22. Then, the position of the cutter bar 1 is adjusted to adjust the length of the entire cutter. A plurality of adapter rods 2 can be butt-jointed end to end, with the polygonal connecting block 24 embedded in the polygonal connecting groove 23. Then, the No. 2 countersunk screw 8 is used to pass through the limiting groove 21 and is screwed into the internal threaded hole 241 for locking, which further improves the length of the cutter and meets different processing scenes.

[0037] It should be noted that, in another aspect of the utility model, the polygonal connecting block 24 and the adapter rod 2 are a one-piece member formed by casting, which has high structural strength.

[0038] Preferably,Figure 1 and Figure 2 As shown in this embodiment, there are two countersunk screws 7 and two countersunk screws 8 symmetrically distributed. With the above scheme, when in use, two countersunk screws 7 and two countersunk screws 8 are used to lock in opposite directions, which results in higher stability.

[0039] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the outer wall of the adapter rod 2 abuts against the inner wall of the tool bar 1 and the fixed sleeve 32. With the above solution, the high-speed rotation of the tool during operation will not cause relative vibration between the tool bar 1, the adapter rod 2 and the fixed sleeve 32, thus improving the safety of processing.

[0040] Optionally, by Figures 1-3 As shown in this embodiment, the cross-sections of the polygonal connecting groove 23 and the polygonal connecting block 24 are both regular hexagonal structures. With the above solution, the high-speed rotation generated by the tool during operation will not cause relative rotation between different adapter rods 2, thus improving the safety of processing.

[0041] Preferably, by Figures 1-5 As shown, this embodiment also includes: positioning protrusions 25, two positioning protrusions 25 are symmetrically fixed to the outer wall of the adapter rod 2, a first positioning groove 13 for the positioning protrusions 25 to be embedded in is machined on the inner wall of the tool bar 1, and a second positioning groove 322 for the positioning protrusions 25 to be embedded in is machined on the inner wall of the fixed sleeve 32. With the above solution, in use, by embedding the positioning protrusions 25 into the first positioning groove 13 and the second positioning groove 322, the splicing of the tool bar 1, the adapter rod 2 and the fixed sleeve 32 is positioned, and the stability of the splicing of the tool bar 1, the adapter rod 2 and the fixed sleeve 32 is further improved. The high-speed rotation generated by the tool during operation will not cause relative rotation between the tool bar 1, the adapter rod 2 and the fixed sleeve 32, thus improving the safety of processing.

[0042] It should be noted that, in another aspect of this utility model, the positioning protrusion 25 and the adapter rod 2 are integrally cast components with high structural strength.

[0043] Preferably, by Figure 1 As shown in this embodiment, the clamping rod 4 is detachably connected to the tool holder 1. With the above solution, different clamping rods 4 can be replaced according to different installation requirements during use. During use, the tool is fixed to the output shaft of the machine tool through the clamping rod 4.

[0044] Optionally, by Figure 1As shown, in the embodiment, further comprising: a first connecting flange 11, a second connecting flange 41, locking bolts 5 and locking nuts 6, the first connecting flange 11 is integrally formed on the end of the cutter bar 1, the second connecting flange 41 is integrally formed on the end of the clamping rod 4, the locking bolts 5 are distributed along the circumferential direction and penetrate the first connecting flange 11 and the second connecting flange 41, and the locking nuts 6 are screwed on the protruding ends of the locking bolts 5, so that the clamping rod 4 is detachably installed through the first connecting flange 11, the second connecting flange 41, the locking bolts 5 and the locking nuts 6, which is convenient for installation, use, disassembly and replacement, and has high installation stability.

[0045] Preferably, the first connecting flange 11 and the second connecting flange 41 are integrally formed on the end of the cutter bar 1 and the end of the clamping rod 4 respectively. Figure 1 As shown, in the embodiment, a plurality of chip grooves 31 are distributed along the circumferential direction on the circumferential surface of the cutting head 3, so that the debris generated by the operation of the cutting head 3 can be discharged from the chip grooves 31.

[0046] The components not described in detail herein are prior art.

[0047] The working principle and use process of the utility model are as follows: the utility model discloses a tool, in use, one end of the adapter rod 2 is embedded in the cutter bar 1, the other end is embedded in the fixed sleeve 32, and the second countersunk screw 8 and the first countersunk screw 7 are respectively screwed and locked, under the premise of ensuring stable connection, the severely worn cutting head 3 is also convenient to disassemble and replace, and the use and maintenance cost are reduced.

[0048] When necessary, the second countersunk screw 8 is loosened first, so that the second countersunk screw 8 is separated from the positioning groove 22, then the position of the cutter bar 1 is adjusted to adjust the length of the whole tool.

[0049] The plurality of adapter rods 2 can be butt-jointed at the head and tail, the polygonal connecting block 24 is embedded in the polygonal connecting groove 23, then the second countersunk screw 8 is screwed into the inner threaded hole 241 after penetrating the limiting groove 21 to lock, so that the length of the tool is further improved, and different processing scenes are met.

[0050] In use, the tool is fixed to the output shaft of the machine tool through the clamping rod 4, and the clamping rod 4 is detachably installed, so that different clamping rods 4 can be replaced according to different installation requirements.

[0051] The utility model discloses an adapter rod 2 for connecting the cutter bar 1 and the cutting head 3, and locking is realized through the first countersunk screw 7 and the second countersunk screw 8, under the premise of ensuring stable connection, the severely worn cutting head 3 is also convenient to disassemble and replace, and the length of the whole tool can also be adjusted according to the actual processing scene, and the plurality of adapter rods 2 can be butt-jointed at the head and tail to further improve the length of the tool.

[0052] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A cemented carbide tool easy to assemble, comprising a tool shank (1) having a cavity, a cutting head (3) fixed to one end of the tool shank (1) and a clamping shank (4) fixed to the other end of the tool shank (1), a fixing sleeve (32) being fixed to the cutting head (3), characterized in that Also include: The adapter rod (2) has a polygonal connection groove (23) at one end, a polygonal connection block (24) is fixed at the other end, and an internal threaded hole (241) is processed on the polygonal connection block (24); A No. 1 countersunk screw (7) is processed on the fixed sleeve (32) to form a No. 2 threaded countersunk hole (321), the adapter rod (2) is partially embedded in the fixed sleeve (32), and a limiting groove (21) is processed on the adapter rod (2), the No. 1 countersunk screw (7) is screwed into the No. 2 threaded countersunk hole (321) by screwing, and one end of the No. 1 countersunk screw (7) is embedded in the limiting groove (21); A No. 2 countersunk screw (8) is processed on the tool rod (1) to form a No. 1 threaded countersunk hole (12), the adapter rod (2) is partially embedded in the tool rod (1), and a plurality of positioning grooves (22) are processed on the adapter rod (2) along the length direction, the No. 2 countersunk screw (8) is screwed into the No. 1 threaded countersunk hole (12) by screwing, and one end of the No. 2 countersunk screw (8) is embedded in the positioning groove (22).

2. A cemented carbide tool easy to assemble according to claim 1, characterized in that: The No. 1 countersunk screw (7) and the No. 2 countersunk screw (8) are symmetrically distributed.

3. A cemented carbide tool easy to assemble according to claim 1, characterized in that: The outer wall of the adapter rod (2) abuts against the inner wall of the tool rod (1) and the fixed sleeve (32).

4. A cemented carbide tool easy to assemble according to claim 1, characterized in that: The cross section of the polygonal connection groove (23) and the polygonal connection block (24) is a regular hexagonal structure.

5. A cemented carbide tool easy to assemble according to claim 1, characterized in that: Also include: Two positioning protrusions (25) are symmetrically fixed to the outer wall of the adapter rod (2), a No. 1 positioning groove (13) is processed on the inner wall of the tool rod (1) for embedding the positioning protrusion (25), and a No. 2 positioning groove (322) is processed on the inner wall of the fixed sleeve (32) for embedding the positioning protrusion (25).

6. A cemented carbide tool easy to assemble according to claim 1, characterized in that: The clamping rod (4) is detachably connected to the tool rod (1).

7. A cemented carbide tool easy to assemble according to claim 6, characterized in that: Also include: A No. 1 connecting flange (11) is integrally formed on the end of the tool rod (1); A No. 2 connecting flange (41) is integrally formed on the end of the clamping rod (4); A plurality of locking bolts (5) are equally spaced in the circumferential direction and penetrate the No. 1 connecting flange (11) and the No. 2 connecting flange (41); A locking nut (6) is installed on the protruding end of the locking bolt (5) by screwing.

8. A cemented carbide tool easy to assemble according to claim 1, characterized in that: A plurality of chip grooves (31) are processed on the circumferential surface of the cutting tool head (3) and are equally spaced in the circumferential direction.

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