Tungsten steel coating drill bit convenient to connect and fix cutter body

Abstract

The utility model belongs to the technical field of drill bits, particularly relates to a tungsten steel coating drill bit convenient for connecting a cutter body to fix, and solves the problems that in the prior art, during long-time machining, a drill bit mechanism and a drill rod cannot be adjusted as a machined hole becomes deeper and deeper, so that the drill bit mechanism and the drill rod cannot be machined; according to the technical scheme, the device comprises a drill bit clamping block, a drill bit telescopic connecting rod is fixedly connected to the lower portion of the drill bit clamping block, the outer wall of the lower portion of the drill bit telescopic connecting rod is sleeved with a first drill bit rod, and a drill bit body is fixedly connected to the lower portion of the first drill bit rod; a drill piece installation groove is formed in the lower end of the drill bit body, a drill piece limiting block is fixedly connected to the lower end of the drill bit body, a drill piece limiting hole is formed in the surface of the inner wall of the drill piece limiting block, and a coating drill piece is movably installed outside the drill piece installation groove. According to the utility model, the practicability is increased, convenience is brought to a user during drilling, the operation quality can be improved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to a tungsten steel coating drill bit which is convenient for connecting and fixing a cutter body, in particular to a tungsten steel coating drill bit which is convenient for connecting and fixing a cutter body, and belongs to the technical field of drill bits. Background Art

[0002] Tungsten steel drill bits have a very high hardness, usually above HRC90. Because the material contains rare metal materials such as tungsten cobalt, and coated drill bits are usually coated with 0.01-0.03 titanium aluminum titanium on the surface, data shows that the service life of tungsten steel drill bits is 3-4 times that of white steel titanium-plated left drill bits, so the price is higher than that of white steel drill bits.

[0003] A tungsten steel drill bit with the announcement number CN219466598U includes a drill rod, a drill bit mechanism, a connecting mechanism, a water supply mechanism and an anti-oxidation coating. The drill bit mechanism is provided at one end of the drill rod, and the connecting mechanism is provided at the other end of the drill rod. The connection is clamped by the clamping pattern on the surface of the connecting rod body, so that the connecting rod body and the drilling rig are more firmly clamped. Then, the sealing ring is sleeved with the connecting rod body to block the water flow and particles during processing and prevent the card slot from being blocked. Finally, the drill bit mechanism is threadedly connected through the connecting port to improve the flexibility of the connecting mechanism.

[0004] In the above technical solution, since the drill bit mechanism is fixedly arranged at one end of the drill rod, during long-term processing, as the processed hole becomes deeper and deeper, the drill bit mechanism and the drill rod cannot be adjusted, which may cause the drill bit mechanism and the drill rod to fail to process, resulting in the problem that the drill bit mechanism and the drill rod may need to be frequently replaced. For this reason, we provide a tungsten steel coated drill bit that is easy to connect and fix the cutter body. Utility Model Content

[0005] The utility model aims to solve the above-mentioned problem that during long-term processing, as the processed hole becomes deeper and deeper, the drill bit mechanism and the drill rod cannot be adjusted, which may result in the drill bit mechanism and the drill rod not being able to be processed, resulting in the drill bit mechanism and the drill rod possibly needing to be frequently replaced. A tungsten steel coated drill bit that is easy to connect and fix the cutter body is provided.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a tungsten steel coated drill bit convenient for connecting and fixing a cutter body, comprising a drill bit clamping block, a drill bit telescopic connecting rod is fixedly connected to the lower part of the drill bit clamping block, a drill bit rod 1 is sleeved on the lower outer wall of the drill bit telescopic connecting rod, a drill bit body is fixedly connected to the lower part of the drill bit rod 1, a drill bit limiting block is fixedly connected to the lower end of the drill bit body, and a drill bit installation groove is opened on the inner side of the drill bit limiting block;

[0007] The inner wall surface of the drill bit limit block is provided with a drill bit limit hole, the outer surface of the drill bit installation groove is movably provided with a coated drill bit, the outer wall surface of the coated drill bit is provided with a drill bit fixing hole, and the inner thread of the drill bit fixing hole is provided with a drill bit fixing screw.

[0008] As a further solution of the utility model: a telescopic rod limiting block is fixedly connected to the outer periphery of the drill telescopic connecting rod, and a telescopic rod fixing threaded hole is opened on the outer wall surface of the drill telescopic connecting rod.

[0009] As a further solution of the utility model: a drill rod fixing hole is provided on the outer wall surface of the drill rod one, and a fixing screw one is installed on the internal thread of the drill rod fixing hole.

[0010] As a further solution of the utility model: a telescopic rod installation groove is provided at the top end of the drill rod 1, and a limit block installation groove is provided on the inner wall surface of the telescopic rod installation groove.

[0011] As a further solution of the utility model: a chip removal groove is provided on the outer wall surface of the drill body.

[0012] As a further solution of the utility model: the drill bit installation groove is located on the upper inner side of the drill bit limiting block.

[0013] As a further solution of the utility model: the outer wall surface of the coated drill bit is covered with a tungsten steel coating.

[0014] The beneficial effects of the utility model are:

[0015] 1. The coated drill bit of the utility model cooperates with the drill bit limiting hole and the drill bit fixing hole, so that the drill bit fixing screw is conveniently screwed in, and the coated drill bit is fixed on the drill bit installation groove opened by the drill bit limiting block, so that the coated drill bit can be stably operated to avoid the inconvenience caused by the fall of the coated drill bit to the user, and after the coated drill bit is worn, the drill bit fixing screw is screwed out, so that the user can remove the coated drill bit from the bottom of the drill head body, and the coated drill bit can be conveniently replaced, thereby increasing practicality and facilitating use;

[0016] 2. The utility model can lengthen the device as a whole by unscrewing the fixing screw to move the drill telescopic connecting rod upward, thus avoiding frequent tool changes and eliminating the need for overall disassembly, saving time and effort and improving work efficiency. The chip groove can effectively discharge the chips drilled by the coated drill bit to the outside, reducing the risk of the tool being damaged by the chips, facilitating the user's drilling, improving the work quality, and facilitating use. In addition, the tungsten steel coating covering the outside of the coated drill bit can effectively increase the service life of the coated drill bit during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation slot structure of the telescopic rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the coated drill bit of the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of the tungsten steel coating of the utility model.

[0021] In the figure: 1. Drill bit clamping block; 2. Drill bit telescopic connecting rod; 3. Telescopic rod limit block; 4. Telescopic rod fixing threaded hole; 5. Fixing screw 1; 6. Drill rod 1; 7. Drill body; 8. Chip groove; 9. Coated drill bit; 10. Drill bit fixing screw; 11. Drill bit rod fixing hole; 12. Telescopic rod mounting slot; 13. Limit block mounting slot; 14. Drill bit fixing hole; 15. Drill bit limit block; 16. Drill bit limit hole; 17. Drill bit mounting slot; 18. Tungsten steel coating 1. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0023] like Figures 1 to 4 As shown, a tungsten steel coated drill bit convenient for connecting and fixing a cutter body comprises a drill bit clamping block 1, a drill bit telescopic connecting rod 2 is fixedly connected to the lower part of the drill bit clamping block 1, a drill bit rod 6 is sleeved on the lower outer wall of the drill bit telescopic connecting rod 2, a drill bit body 7 is fixedly connected to the lower part of the drill bit rod 6, a drill bit limiting block 15 is fixedly connected to the lower end of the drill bit body 7, and a drill bit installation groove 17 is provided on the inner side of the drill bit limiting block 15, a drill bit limiting hole 16 is provided on the inner wall surface of the drill bit limiting block 15, a coated drill bit 9 is movably installed on the outer side of the drill bit installation groove 17, and a drill bit fixing hole 16 is provided on the outer wall surface of the coated drill bit 9 4. The inner thread of the drill bit fixing hole 14 is installed with a drill bit fixing screw 10. The coated drill bit 9 cooperates with the drill bit limiting hole 16 and the drill bit fixing hole 14, so that the drill bit fixing screw 10 is conveniently screwed in, and the coated drill bit 9 is fixed on the drill bit installation groove 17 opened by the drill bit limiting block 15, so that the coated drill bit 9 can be stably operated to avoid the coated drill bit 9 falling off and causing inconvenience to the user. After the coated drill bit 9 is worn, the drill bit fixing screw 10 is screwed out, so that the user can remove the coated drill bit 9 from the bottom of the drill head body 7 conveniently, and the coated drill bit 9 can be replaced conveniently, thereby increasing practicality and facilitating use. Embodiment 2

[0024] In addition to all the technical features of the first embodiment, the present embodiment also includes: a telescopic rod limit block 3 is fixedly connected to the outer periphery of the drill telescopic connecting rod 2, a telescopic rod fixing threaded hole 4 is provided on the outer wall surface of the drill telescopic connecting rod 2, a drill rod fixing hole 11 is provided on the outer wall surface of the drill rod 6, and a fixing screw 5 is installed on the inner thread of the drill rod fixing hole 11. The fixing screw 5 is screwed out to move the drill telescopic connecting rod 2 upward, so that the device can be lengthened as a whole, and frequent tool changes can be avoided without the need for overall disassembly, which saves time and effort. The drill bit 7 is labor-saving and has improved work efficiency. A telescopic rod mounting groove 12 is provided at the top of the drill rod 6. A limit block mounting groove 13 is provided on the inner wall surface of the telescopic rod mounting groove 12. A chip withdrawal groove 8 is provided on the outer wall surface of the drill body 7. The drill bit mounting groove 17 is located above the inner side of the drill bit limit block 15. The outer wall surface of the coated drill bit 9 is covered with a tungsten steel coating 18. The chip withdrawal groove 8 can effectively discharge the debris drilled by the coated drill bit 9 to the outside, reducing the risk of the tool being damaged by the debris, facilitating the user's drilling, improving the work quality, and facilitating use.

[0025] Working principle: first install the coated drill bit 9 in the drill bit installation groove 17 opened inside the drill bit limit block 15, and then threadedly install it through the drill bit fixing screw 10 and the drill bit fixing hole 14 opened on the outer wall of the coated drill bit 9 and the drill bit limit hole 16 opened on the inner surface of the drill bit limit block 15, so that the coated drill bit 9 is fixed under the drill head body 7, so that the coated drill bit 9 increases stability during drilling operation, can avoid falling off during drilling, effectively prevent the two from loosening, increase practicality, and facilitate user use. The chip removal groove 8 can discharge the debris drilled out by the coated drill bit 9, avoid the accumulation of debris to damage the coated drill bit 9 and the drill head body 7, improve the overall safety, and after the coated drill bit 9 is worn, the user can effectively replace the coated drill bit 9 by unscrewing the drill bit fixing screw 10, improve the processing quality, and at the same time avoid the user from replacing the whole, reducing the user's loss, and the tungsten steel coating 18 covering the outside of the coated drill bit 9 can effectively increase the service life of the coated drill bit 9 in action.

[0026] Insert the drill telescopic connecting rod 2 into the telescopic rod installation groove 12 opened inside the drill rod 6, so that the telescopic rod fixing threaded hole 4 opened on the surface of the drill telescopic connecting rod 2 coincides with the drill rod fixing hole 11 opened on the surface of the drill rod 6, and then the user screws in the fixing screw 5 to fix the drill telescopic connecting rod 2 and the drill rod 6, and the telescopic rod limit block 3 fixed on the outside of the drill telescopic connecting rod 2 cooperates with the limit block installation groove 13 opened inside the drill rod 6 to fix the drill telescopic connecting rod 2. The limiting function is used to facilitate the user to quickly insert the drill telescopic connecting rod 2 into the drill rod 6, effectively improving the drilling efficiency. As the drilling depth increases, the user unscrews the fixing screw 5, moves the drill rod 6 downward, and then screws in the fixing screw 5, which can effectively adjust the overall length of the device, thereby avoiding the tedious frequent tool changes when processing is not possible, and is convenient for users to use. By fixing the drill clamping block 1 on the machine tool, the drill clamping block 1 can effectively drive the drill telescopic connecting rod 2 to operate, which is convenient to use.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tungsten steel coated drill bit convenient for connecting and fixing a cutter body, comprising a drill bit clamping block (1), characterized in that: A drill telescopic connecting rod (2) is fixedly connected to the bottom of the drill clamping block (1); a drill rod (6) is sleeved on the outer wall below the drill telescopic connecting rod (2); a drill body (7) is fixedly connected to the bottom of the drill rod (6); a drill bit limiting block (15) is fixedly connected to the lower end of the drill bit body (7); and a drill bit mounting groove (17) is provided on the inner side of the drill bit limiting block (15); The inner wall surface of the drill bit limiting block (15) is provided with a drill bit limiting hole (16), the outer surface of the drill bit mounting groove (17) is movably mounted with a coated drill bit (9), the outer wall surface of the coated drill bit (9) is provided with a drill bit fixing hole (14), and the inner thread of the drill bit fixing hole (14) is provided with a drill bit fixing screw (10).

2. A tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 1, characterized in that: A telescopic rod limiting block (3) is fixedly connected to the outer periphery of the drill telescopic connecting rod (2), and a telescopic rod fixing threaded hole (4) is provided on the outer wall surface of the drill telescopic connecting rod (2).

3. The tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 1, characterized in that: The outer wall surface of the drill rod one (6) is provided with a drill rod fixing hole (11), and the inner thread of the drill rod fixing hole (11) is provided with a fixing screw one (5).

4. A tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 3, characterized in that: A telescopic rod installation groove (12) is provided at the top end of the drill rod 1 (6), and a limit block installation groove (13) is provided on the inner wall surface of the telescopic rod installation groove (12).

5. The tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 1, characterized in that: The outer wall surface of the drill body (7) is provided with a chip removal groove (8).

6. The tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 1, characterized in that: The drill bit mounting groove (17) is located at the bottom of the drill head body (7).

7. The tungsten steel coated drill bit that is convenient for connecting and fixing a cutter body according to claim 1, characterized in that: The outer wall surface of the coated drill bit (9) is covered with a tungsten steel coating (18).

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