Wear-resistant hard alloy tool bit

Abstract

The utility model discloses a wear-resistant hard alloy tool bit, and relates to the technical field of alloy tools. The wear-resistant hard alloy tool bit comprises an alloy tool bar, a threaded groove is formed in the upper end of the alloy tool bar, the inner wall of the threaded groove is in threaded connection with a threaded rod, and the upper end of the threaded rod is fixedly connected with an alloy tool bit body; the upper end of the alloy tool bit is fixedly connected with two tungsten steel heads; the alloy cutter bar and the alloy cutter head are subjected to quenching and tempering heat treatment, the alloy cutter bar and the alloy cutter head are conveniently fixed through threaded connection of the threaded groove and the threaded rod, drill bits of different specifications or abraded drill bits can be conveniently replaced, the flexibility and efficiency of drilling operation are improved, and when the alloy cutter bar or the alloy cutter head is damaged, the alloy cutter bar or the alloy cutter head can be conveniently replaced. One cutter is convenient to replace, the whole cutter does not need to be replaced, and the practicability and convenience of the cutter are improved; through quenching and tempering, the hardness, strength and wear resistance of the hard alloy cutter bar and the alloy cutter head can be remarkably improved, so that the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to alloy cutter technical field, especially in a wear -resisting type hard alloy tool bit. BACKGROUND

[0002] The hard alloy tool bit is made of a refractory metal hard compound and a bonding metal through a powder metallurgy process, and the hard alloy has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, especially high hardness and wear resistance, which are basically unchanged even at a temperature of 500 DEG C and still have a high hardness at 1000 DEG C.

[0003] A plurality of hard alloy tool bits are installed on the rotating rod, the rotating rod is driven to rotate, and the plurality of hard alloy tool bits are driven to rotate, so that reaming work is realized, at present, the hard alloy tool bit is mostly integrally made and is fixed on the rotating rod of the reamer through a screw, however, only the side of the hard alloy tool bit away from the rotating rod is a cutting surface, the rest only plays a supporting strength role, when the cutting surface of the hard alloy tool bit is damaged, the whole needs to be replaced, the practicability of the alloy tool bit is reduced, and therefore a novel solution is provided. SUMMARY

[0004] The utility model discloses a wear -resisting type hard alloy tool bit, can solve the problem that the hard alloy tool bit only the side away from the rotating rod is the cutting surface, the rest only plays the supporting strength role, when the cutting surface of the hard alloy tool head is damaged, the whole needs to be replaced, reduces the practicability of alloy tool head.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a wear -resisting type hard alloy tool bit, including alloy cutter rod, the upper end of alloy cutter rod is equipped with thread groove, the inner wall of thread groove is connected with thread rod in screw thread, the upper end of thread rod is fixedly connected with alloy tool bit;

[0006] The upper end of the alloy tool bit is fixedly connected with two tungsten steel heads.

[0007] The alloy cutter rod and the alloy tool bit are quenched and tempered.

[0008] Preferably, the surface of the alloy cutter rod and the alloy tool bit is provided with a chip removal groove, and a plurality of cutting strips are fixedly connected to the surface of the alloy cutter rod and the alloy tool bit.

[0009] Preferably, the lower end of the alloy cutter rod is fixedly connected with an alloy cutter mounting block.

[0010] Water holes are formed in the alloy cutter rod, the alloy cutter mounting block, the alloy tool bit and the thread rod.

[0011] The alloy cutter head is provided with two drainage holes on the surface.

[0012] Compared with the prior art, the alloy cutter head has the advantages that:

[0013] 1. The wear-resistant hard alloy cutter head is convenient to fix the alloy cutter rod and the alloy cutter head through the threaded connection of the threaded groove and the threaded rod, the threaded connection can provide stable connection, ensure that the drill bit and the drill rod will not separate during drilling, thereby ensuring the continuity and stability of the drilling operation, conveniently replacing the drill bit of different specifications or wear, improving the flexibility and efficiency of the drilling operation, conveniently replacing one of the alloy cutter rod and the alloy cutter head when they are damaged, without overall replacement, improving the practicability and convenience of the cutter; the wear resistance and hardness of the alloy cutter head are improved through the use of the tungsten steel head, the hardness, strength and wear resistance of the hard alloy cutter rod and the alloy cutter head are significantly improved through quenching and tempering, thereby prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further illustrated below in combination with the drawings and embodiments:

[0015] Fig. 1 It is a wear-resistant hard alloy cutter head structure schematic view of the utility model;

[0016] Fig. 2 It is a water hole schematic view of the utility model;

[0017] Fig. 3 It is a threaded rod schematic view of the utility model.

[0018] The drawings show that: 1, alloy cutter rod; 2, alloy cutter mounting block; 3, alloy cutter head; 4, chip removal groove; 5, cutting strip; 6, threaded groove; 7, water hole; 8, threaded rod; 9, drainage hole; 10, tungsten steel head. DETAILED DESCRIPTION

[0019] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0020] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0021] In the description of the utility model, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second is only used for distinguishing the technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0022] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0023] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a wear-resistant hard alloy tool bit, including alloy tool rod 1, the upper end of alloy tool rod 1 is provided with thread groove 6, the inner wall of thread groove 6 is threadedly connected with threaded rod 8, the upper end of threaded rod 8 is fixedly connected with alloy tool bit 3, the upper end of alloy tool bit 3 is fixedly connected with two tungsten steel head 10, alloy tool rod 1 and alloy tool bit 3 are quenched and tempered heat treated.

[0024] Through the thread connection of thread groove 6 and threaded rod 8, alloy tool rod 1 and alloy tool bit 3 can be fixed conveniently, and the thread connection can provide stable connection, to ensure that drill bit and drill rod will not be separated during drilling process, so as to ensure the continuity and stability of drilling operation, through thread connection, different specifications or worn drill bits can be conveniently replaced, the flexibility and efficiency of drilling operation are improved, when alloy tool rod 1 or alloy tool bit 3 is damaged, one of them can be conveniently replaced, without the need for overall replacement, the practicability and convenience of the tool are improved.

[0025] Through the use of tungsten steel head 10, the wear resistance and hardness of alloy tool bit can be conveniently increased, and through quenching and tempering, the hardness, strength and wear resistance of hard alloy tool rod 1 and alloy tool bit 3 can be significantly improved, so as to prolong its service life.

[0026] The surface of alloy tool rod 1 and alloy tool bit 3 is provided with chip groove 4, and a plurality of cutting strips 5 are fixedly connected to the surface of alloy tool rod 1 and alloy tool bit 3.

[0027] The main role of the chip groove 4 provided on the surface of the alloy tool rod 1 and the alloy tool bit 3 is to remove chips and transport cutting fluid. The design of the chip groove 4 allows the chips generated during cutting to be removed in a timely manner, avoiding the accumulation of chips in front of the alloy tool bit 3, thereby improving the working conditions of the alloy tool bit 3, increasing the work efficiency of the alloy tool bit 3, reducing the wear of the alloy tool bit 3, prolonging its service life, avoiding the interference of chip accumulation on the machining process, and improving the machining efficiency.

[0028] Through the setting of the cutting strip 5, the cutting force of the alloy tool bar 1 and the alloy tool head 3 to the workpiece is improved, the cutting area of the alloy tool head 3 can be increased, so that the cutting efficiency and speed of the alloy tool head 3 are improved, and the practicability of the alloy tool head 3 is improved.

[0029] The lower end of the alloy tool bar 1 is fixedly connected with the alloy tool mounting block 2, the interiors of the alloy tool bar 1, the alloy tool mounting block 2, the alloy tool head 3 and the threaded rod 8 are all provided with water passing holes 7, and the surface of the alloy tool head 3 is provided with two drainage holes 9.

[0030] A large amount of heat is generated during the cutting process, the cooling liquid is injected through the water passing hole 7, the temperature of the alloy tool head 3 and the tungsten steel head 10 can be effectively reduced, the thermal deformation of the alloy tool head 3 and the tungsten steel head 10 is reduced, and the machining precision and tool life are improved.

[0031] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A wear resistant cemented carbide tool tip, characterized in that: Including alloy cutter stem (1), the upper end of alloy cutter stem (1) is provided with threaded groove (6), the inner wall of threaded groove (6) is threadedly connected with threaded rod (8), the upper end of threaded rod (8) is fixedly connected with alloy cutter head (3); The upper end of alloy cutter head (3) is fixedly connected with two tungsten steel heads (10); Alloy cutter stem (1) and alloy cutter head (3) are quenched and tempered heat treated.

2. A wear resistant carbide tool tip according to claim 1, characterized in that: The surface of alloy cutter stem (1) and alloy cutter head (3) is provided with chip groove (4), and the surface of alloy cutter stem (1) and alloy cutter head (3) is fixedly connected with multiple cutting strips (5).

3. A wear resistant carbide tool tip according to claim 1 wherein: The lower end of alloy cutter stem (1) is fixedly connected with alloy cutter mounting block (2); The inside of alloy cutter stem (1), alloy cutter mounting block (2), alloy cutter head (3) and threaded rod (8) is provided with water hole (7); The surface of alloy cutter head (3) is provided with two water drainage holes (9).

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