Hard alloy drill bit

Abstract

The utility model discloses a hard alloy drill bit, which relates to the technical field of alloy drill bits and comprises an alloy cutter handle component, a locking component and an alloy drill bit component, the alloy cutter handle component comprises a cutter handle head and a clamping groove, the clamping groove is arranged outside the cutter handle head, the locking component is mounted at the bottom of the alloy cutter handle component in a threaded manner, and the alloy drill bit component is mounted in the clamping groove. The locking assembly comprises a threaded ring and a threaded assembling and disassembling groove, the alloy drill bit assembly is fixedly installed in the alloy cutter handle assembly, and the alloy drill bit assembly comprises a drill bit cutter body and a drill bit installation groove. Under the combined action of the threaded ring, the drill bit clamping block, the force bearing block and the drill bit mounting groove, the drill bit and the cutter handle are divided into two parts, when the hard alloy drill bit is assembled, the threaded ring and the drill bit clamping block are tightened through the threaded assembling and disassembling groove, the drill bit clamping block clamps the cutter handle head, and therefore the drill bit is assembled. The cutter handle can be reserved when the drill bit is damaged, and cutter handle materials are saved.

Description

Technical Field

[0001] This utility model relates to the field of alloy drill bit technology, specifically to a cemented carbide drill bit. Background Technology

[0002] Drill bits are widely used in various processing techniques, and to ensure their strength, they are generally made of cemented carbide to enhance their hardness.

[0003] Finished carbide drill bits have a single piece for the blade and shank. However, during machining, carbide drill bits may inevitably encounter damage or breakage due to improper operation or excessively hard materials. In such cases, the drill bit needs to be replaced, resulting in excessive wear. Even if the drill bit is broken, the strength of the shank remains good, but when the blade breaks, the shank must be discarded, resulting in a waste of shank material. Furthermore, when the drill bit reaches a certain depth, the cutting fluid cannot fully reach the machining area, which can easily lead to poor cooling and lubrication, causing abnormal temperature rise in the machining area, reducing tool life, and hindering its widespread use.

[0004] To address this problem, this application provides a carbide drill bit. Utility Model Content

[0005] The purpose of this invention is to provide a carbide drill bit that solves the problem mentioned in the background art where the strength of the shank of a broken drill bit remains good, but the shank must be discarded when the drill body breaks, resulting in a waste of shank material and poor performance of the carbide drill bit.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A carbide drill bit includes a carbide shank assembly, a locking assembly, and a carbide drill bit assembly. The carbide shank assembly includes a shank head and a clamping groove. The clamping groove is formed on the outside of the shank head. The locking assembly is threadedly installed on the bottom of the carbide shank assembly. The locking assembly includes a threaded ring and a threaded loading / unloading groove. The carbide drill bit assembly is fixedly installed inside the carbide shank assembly. The carbide drill bit assembly includes a drill bit body and a drill bit mounting groove, which is formed inside the drill bit body.

[0008] A further improvement of this utility model is that: a tool holder rod is fixedly connected to the bottom of the tool holder head, and a cutting fluid inlet is provided inside the tool holder head.

[0009] The further improvement in the technical scheme of the utility model lies in that the bottom of the tool shank rod is fixedly connected with drill bit clamping blocks, the inner side of the drill bit clamping block is provided with a drill bit positioning groove, and the drill bit clamping blocks are provided with a movable opening.

[0010] The further improvement in the technical scheme of the utility model lies in that the bottom of the tool shank rod is fixedly connected with a cutting fluid connector, and the bottom of the tool shank rod is fixedly connected with a force bearing block.

[0011] The further improvement in the technical scheme of the utility model lies in that the outer part of the drill bit body is fixedly provided with a positioning block, and the bottom end of the drill bit body is provided with a chip removal groove.

[0012] The further improvement in the technical scheme of the utility model lies in that the bottom of the drill bit body is provided with a cutting fluid outlet.

[0013] The further improvement in the technical scheme of the utility model lies in that the inner part of the drill bit body is provided with a cutting fluid pipeline, and the inner part of the top end of the drill bit body is provided with a cutting fluid connector.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1、The utility model provides a hard alloy drill bit, through the cooperation of the thread ring, drill bit clamping block, force bearing block and drill bit mounting groove, the drill bit and the tool shank are divided into two parts, when assembling the hard alloy drill bit, the positioning block in the alloy drill bit assembly and the drill bit positioning groove in the alloy tool shank assembly are used to connect the force bearing block and the drill bit mounting groove, then the thread ring and the drill bit clamping block are tightened through the thread mounting groove, the drill bit clamping block clamps the tool shank head, which is convenient and fast, the tool shank can be reserved when the drill bit is damaged, and the tool shank material is saved.

[0016] 2、The utility model provides a hard alloy drill bit, through the cooperation of the cutting fluid inlet, cutting fluid pipeline and cutting fluid outlet, the cutting fluid is injected from the cutting fluid inlet in the tool shank head, the cutting fluid reaches the cutting fluid pipeline in the drill bit body through the cutting fluid connector in the alloy drill bit assembly and the cutting fluid connector in the alloy tool shank assembly, and then is sprayed from the cutting fluid outlet, which cleans the cutting chips generated in the drilling process and lubricates the drill bit. ACCURACY OF DRAWINGS

[0017] Fig. 1 It is the overall structure schematic view of the hard alloy drill bit of the utility model;

[0018] Fig. 2 It is the internal structure schematic view of the hard alloy drill bit of the utility model;

[0019] Fig. 3 Structure diagram of the alloy drill bit assembly of the utility model;

[0020] Fig. 4 Structure diagram of the alloy drill bit assembly of the utility model;

[0021] Fig. 5 Structure diagram of the alloy drill bit assembly of the utility model.

[0022] In the figure: 1, alloy handle assembly; 2, locking assembly; 3, alloy drill bit assembly; 10, handle head; 11, clamping groove; 12, handle rod; 13, cutting fluid connector; 14, drill bit positioning groove; 15, force block; 16, cutting fluid inlet; 20, threaded ring; 21, threaded dismounting groove; 22, movable opening; 23, drill bit clamping block; 30, drill bit body; 31, chip removal groove; 32, cutting fluid outlet; 33, positioning block; 34, drill bit mounting groove; 35, cutting fluid pipeline; 36, cutting fluid interface. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in connection with the embodiments as follows:

[0024] As Figs. 1-4 shown, the utility model provides a hard alloy drill bit, including alloy handle assembly 1, locking assembly 2 and alloy drill bit assembly 3, alloy handle assembly 1 includes handle head 10 and clamping groove 11, the outside of handle head 10 is seted up with clamping groove 11, handle head 10 and clamping groove 11 can make this hard alloy drill bit and machine tool connect, the bottom of handle head 10 is fixedly connected with handle rod 12, handle rod 12 can connect handle head 10 with locking assembly 2, the inside of handle head 10 is seted up with cutting fluid inlet 16, when needing to cool workpiece, can through cutting fluid inlet 16 and inject cutting fluid into the inside of handle head 10, the bottom of handle rod 12 is fixedly connected with cutting fluid connector 13, cutting fluid connector 13 can deliver cutting fluid to the inside of alloy drill bit assembly 3, the bottom of handle rod 12 is fixedly connected with force block 15, force block 15 can transmit the rotary motion of machine tool to hard alloy drill bit.

[0025] The locking assembly 2 is screwed on the bottom of the alloy shank assembly 1, the locking assembly 2 can connect the alloy shank assembly 1 and the alloy drill bit assembly 3, so that the alloy drill bit assembly 3 does not rotate during drilling the workpiece, the locking assembly 2 comprises a threaded ring 20 and a threaded dismounting groove 21, the threaded dismounting groove 21 can conveniently lock the threaded ring 20, the bottom of the shank rod 12 is fixedly connected with drill bit clamping blocks 23, the drill bit clamping blocks 23 can clamp the alloy drill bit assembly 3, the inner side of the drill bit clamping blocks 23 is provided with drill bit positioning grooves 14, the drill bit positioning grooves 14 play a positioning role when the alloy drill bit assembly 3 is installed, which is convenient for operation, the drill bit clamping blocks 23 are provided with movable openings 22, and the threaded ring 20 is screwed on the outside of the drill bit clamping blocks 23.

[0026] The alloy drill bit assembly 3 is fixedly installed in the inside of the alloy shank assembly 1, the alloy drill bit assembly 3 comprises a drill bit body 30 and a drill bit mounting groove 34, the drill bit mounting groove 34 is arranged in the inside of the drill bit body 30, the drill bit mounting groove 34 cooperates with the force bearing block 15, so that the drill bit can be prevented from rotating during drilling the workpiece, thereby preventing the machining precision from being reduced, the outside of the drill bit body 30 is fixedly installed with a positioning block 33, the positioning block 33 cooperates with the drill bit positioning groove 14 to position the drill bit during installation, thereby saving assembly time and improving assembly efficiency, through the cooperation of the threaded ring 20, the drill bit clamping blocks 23, the force bearing block 15 and the drill bit mounting groove 34, the positioning block 33 in the alloy drill bit assembly 3 cooperates with the drill bit positioning groove 14 in the alloy shank assembly 1, so that the force bearing block 15 is connected with the drill bit mounting groove 34, and then the threaded ring 20 and the drill bit clamping blocks 23 are tightened through the threaded dismounting groove 21, so that the drill bit clamping blocks 23 clamp the shank head 10, which is convenient and fast, so that the shank can be reserved when the drill bit is damaged, thereby saving shank material, the bottom of the drill bit body 30 is provided with a cutting fluid outlet 32, the cutting fluid is sprayed out of the cutting fluid outlet 32 to cool and lubricate the machining area, the bottom end of the drill bit body 30 is provided with a chip removal groove 31, the chip removal groove 31 can remove the waste chips generated in the drilling process, thereby ensuring the machining quality, the inside of the drill bit body 30 is provided with a cutting fluid pipeline 35, and the inside of the top end of the drill bit body 30 is provided with a cutting fluid inlet 36, when it is necessary to introduce the cutting fluid into the machining area to cool and lubricate, the cutting fluid is injected from the cutting fluid inlet 16 in the inside of the shank head 10 through the cooperation of the cutting fluid inlet 16, the cutting fluid pipeline 35 and the cutting fluid outlet 32, the cutting fluid reaches the cutting fluid pipeline 35 in the inside of the drill bit body 30 through the cooperation of the cutting fluid inlet 36 in the alloy drill bit assembly 3 and the cutting fluid connecting head 13 in the alloy shank assembly 1, and then is sprayed out of the cutting fluid outlet 32, thereby cleaning the cutting chips generated in the drilling process and lubricating the drill bit.

[0027] The working principle of the hard alloy drill bit will be described below.

[0028] As Figs. 1-4As shown, the utility model provides a hard alloy drill bit, need to assemble alloy handle component 1 with alloy drill bit assembly 3 when using the hard alloy drill head to carry out drilling to work piece, first through the joint action of screw ring 20, drill chucking piece 23, force block 15 and drill mounting groove 34, make force block 15 with drill mounting groove 34 connect through the positioning block 33 in alloy drill bit assembly 3 with drill positioning slot 14 in alloy handle component 1, again through screw thread dismounting groove 21 and screw ring 20 with drill chucking piece 23 are tightened, make drill chucking piece 23 clamp handle head 10, convenient and fast operation makes handle keep down when drill damage, save handle material, when needing to pass through handle head 10 in alloy handle component 1 with clamping groove 11 to the assembled hard alloy drill bit is loaded into machine tool, when needing to pass into cutting fluid cooling lubrication to processing area, through the joint action of cutting fluid inlet 16, cutting fluid pipeline 35 and cutting fluid outlet 32, cutting fluid is injected from cutting fluid inlet 16 inside handle head 10, cutting fluid reaches cutting fluid pipeline 35 inside drill body 30 through cutting fluid interface 36 in alloy drill bit assembly 3 with cutting fluid connecting head 13 in alloy handle component 1, again from cutting fluid outlet 32 spouts, cooling lubrication and cleaning the chip produced in the drilling process to processing area.

[0029] The above has made detailed description to the utility model in general, but can make some modification or improvement on the basis of the utility model, which is obvious to the general skilled in the technical field. Therefore, the modification or improvement without departing from the spirit of the utility model is within the protection scope of the utility model.

Claims

1. A carbide drill comprising an alloy shank assembly (1), a locking assembly (2) and an alloy drill assembly (3), characterized in that: The alloy tool shank assembly (1) comprises a tool shank head (10) and a clamping groove (11), the outer part of the tool shank head (10) is provided with the clamping groove (11), the locking assembly (2) is screw-mounted at the bottom of the alloy tool shank assembly (1), the locking assembly (2) comprises a threaded ring (20) and a threaded dismounting groove (21), the alloy drill bit assembly (3) is fixedly installed inside the alloy tool shank assembly (1), the alloy drill bit assembly (3) comprises a drill bit body (30) and a drill bit mounting groove (34), and the drill bit mounting groove (34) is arranged in the inside of the drill bit body (30).

2. A carbide drill according to claim 1, characterized in that: The bottom of the tool shank head (10) is fixedly connected with a tool shank rod (12), and the inside of the tool shank head (10) is provided with a cutting fluid inlet (16).

3. A carbide drill according to claim 2, characterized in that: The bottom of the tool shank rod (12) is fixedly connected with a drill bit clamping block (23), the inner side of the drill bit clamping block (23) is provided with a drill bit positioning groove (14), the drill bit clamping block (23) is provided with a movable opening (22) between the drill bit clamping block (23), and the threaded ring (20) is screw-mounted outside the drill bit clamping block (23).

4. A carbide drill according to claim 2, characterized in that: The bottom of the tool shank rod (12) is fixedly connected with a cutting fluid connector (13), and the bottom of the tool shank rod (12) is fixedly connected with a force receiving block (15).

5. A carbide drill according to claim 1, characterized in that: The outside of the drill bit body (30) is fixedly installed with a positioning block (33), and the bottom end of the drill bit body (30) is provided with a chip removal groove (31).

6. A carbide drill according to claim 1, characterized in that: The bottom of the drill bit body (30) is provided with a cutting fluid outlet (32).

7. A carbide drill according to claim 1, characterized in that: The inside of the drill bit body (30) is provided with a cutting fluid pipeline (35), and the inside of the top end of the drill bit body (30) is provided with a cutting fluid interface (36). The inside of the drill bit body (30) is provided with a cutting fluid pipeline (35), and the inside of the top end of the drill bit body (30) is provided with a cutting fluid interface (36).

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