Coated drill bit with hole blocking prevention function

Abstract

The utility model belongs to the technical field of drill bits, particularly relates to a coating drill bit with a hole clamping prevention function, and aims at solving the problem that an existing drill bit cannot be pulled out, the following scheme is provided, the coating drill bit comprises a connecting rod, a coating drill bit body penetrates out of the lower portion of the connecting rod, and an adjusting mechanism is arranged in the connecting rod; the adjusting mechanism comprises a fastener, the fastener is fixed to the outer wall of the connecting rod, a penetrating-out block is connected to the interior of the connecting rod in a sliding mode, a connecting plate is fixed to the bottom end of the penetrating-out block, and a connecting hole is formed in the penetrating-out block. The coating drill bit body and the connecting rod are rapidly disassembled and assembled, when a clamping hole appears, after the fastening piece is disassembled, the coating drill bit body and the penetrating-out block enter the connecting rod, the crushing drill fixed by the fixing block conducts crushing work, the hole diameter is opened and widened, and the clamped coating drill bit body is conveniently pulled out through crushing clamping points.

Description

Technical Field

[0001] This utility model relates to a coated drill bit, specifically a coated drill bit with anti-jamming function, belonging to the field of drill bit technology. Background Technology

[0002] Coated cutting tools have become a hallmark of modern cutting tools, accounting for over 50% of all cutting tools. Various cutting tools used in machining, including turning tools, boring tools, drills, reamers, broaches, taps, thread cutters, rolling heads, milling cutters, form tools, gear hobs, and gear shapers, can all undergo coating processes to improve their performance. Drills, in particular, are tools used to create holes; to improve their wear resistance, wear-resistant coatings are applied, thereby extending their service life.

[0003] In existing technologies, such as the anti-jamming drill bit assembly disclosed in CN208662621U, traditional drilling machines experience two outcomes when they get stuck: either the drill bit breaks or the main motor burns out. The main motor is very expensive, and its failure results in significant losses. Drill bits are also relatively expensive, mostly made of alloys, and their breakage can also cause losses to the workshop. However, in the case of this invention, the connecting part will break under strong torque when the drilling machine gets stuck, which can prevent drill bit breakage or motor burnout in advance. The connecting body has a simple structure and is made of inexpensive materials, resulting in low cost. After the connecting part breaks, the connecting body can be replaced, allowing the drilling machine to continue to be used.

[0004] However, in implementing the relevant technology, the following problems were found in the mechanical drilling anti-jamming drill bit assembly designed above: In the prior art, the drill bit can be actively broken and replaced through the cooperation of components such as connectors, but in actual use, the problem of the drill bit getting stuck and unable to be pulled out cannot be solved. In view of this, a coated drill bit with anti-jamming function is provided to overcome the above defects. Utility Model Content

[0005] This invention provides a coated drill bit with anti-jamming function to solve the above-mentioned technical problem of drill bit getting stuck and unable to be pulled out.

[0006] The present invention achieves the above objectives through the following technical solution: a coated drill bit with anti-jamming function, comprising a connecting rod, wherein the coated drill bit body extends through the lower part of the connecting rod, and an adjustment mechanism is provided inside the connecting rod;

[0007] The adjustment mechanism includes a fastener, which is fixed to the outer wall of the connecting rod. A through-hole block is slidably connected inside the connecting rod. A connecting plate is fixed to the bottom end of the through-hole block, and a connecting hole is opened inside the through-hole block. A fixing block is fixed to the lower outer side of the connecting rod, and a breaker drill is fixed to the bottom end of the fixing block. A chip removal groove is opened on the outer wall of the breaker drill.

[0008] As a further improvement of this utility model: the protruding block is detachably connected to the connecting rod by fasteners, and the connecting rod is tightly fitted to the connecting plate.

[0009] As a further improvement of this utility model: the breaker drill is closely fitted with the coated drill bit body, and a sliding structure is formed between the coated drill bit body and the breaker drill.

[0010] As a further improvement of this utility model: a sliding groove is provided above the fixing block on the outer wall of the connecting rod, and an abutment mechanism is provided inside the sliding groove.

[0011] As a further embodiment of this utility model: the abutting mechanism includes a slider, which is slidably connected inside the groove, and an abutting block is fixed at one end of the slider that passes through the connecting rod, and a collar is provided above the slider.

[0012] As a further embodiment of this utility model: the abutting mechanism further includes a limiting block, the limiting block is fixed at the bottom end of the abutting block, and a limiting hole is opened at the top of the protruding block corresponding to the position of the limiting block.

[0013] As a further improvement of this utility model: the collar is tightly fitted with the slider, and the collar is threadedly connected to the connecting rod.

[0014] The beneficial effects of this utility model are: by inserting the fastener into the connecting hole of the through-hole block, the coated drill bit body and the connecting rod can be quickly disassembled and assembled. When a jamming occurs, after removing the fastener, the coated drill bit body and the through-hole block enter the connecting rod, allowing the crushing drill fixed by the fixing block to crush the workpiece, opening and widening the hole diameter. The crushing jamming point makes it easy to pull out the jammed coated drill bit body.

[0015] The slider slides along the groove, causing the abutment block to abut the protruding block. At the same time, the limiting block is inserted into the limiting hole. Then, the adjusting collar presses the slider to improve the stability of the coated drill bit body after installation and the load-bearing capacity during processing. When it is necessary to break the hole, the adjusting collar will prevent the abutment block from pressing the protruding block, making it easier for the coated drill bit body to enter the connecting rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting rod structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the through-block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the contact block structure of this utility model.

[0020] In the diagram: 1. Connecting rod; 2. Coated drill bit body; 3. Adjusting mechanism; 301. Fastener; 302. Connecting plate; 303. Through block; 304. Connecting hole; 305. Fixing block; 306. Breaker; 307. Chip removal groove; 4. Slide groove; 5. Abutting mechanism; 501. Slider; 502. Abutting block; 503. Collar; 504. Limiting block; 505. Limiting hole. Detailed Implementation

[0021] 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. Example 1

[0022] like Figures 1 to 4 As shown, a coated drill bit with anti-jamming function includes a connecting rod 1, with a coated drill bit body 2 extending from the bottom of the connecting rod 1. An adjustment mechanism 3 is provided inside the connecting rod 1. The adjustment mechanism 3 includes a fastener 301 fixed to the outer wall of the connecting rod 1. A through-hole block 303 is slidably connected inside the connecting rod 1. A connecting plate 302 is fixed to the bottom end of the through-hole block 303. A connecting hole 304 is provided inside the through-hole block 303. A fixing block 305 is fixed to the lower outer side of the connecting rod 1. A breaker drill 306 is fixed to the bottom end of the fixing block 305. A chip removal groove 307 is provided on the outer wall of the breaker drill 306. The fastener 301 is detachably connected to the connecting rod 1. The connecting rod 1 is tightly fitted to the connecting plate 302. The breaker drill 306 is tightly fitted to the coated drill bit body 2. A sliding structure is formed between the coated drill bit body 2 and the breaker drill 306. The fastener 301 is inserted into the connecting hole 304 of the through block 303, allowing the coated drill bit body 2 and the connecting rod 1 to be quickly disassembled and assembled. When a jamming occurs, the fastener 301 is removed, and the coated drill bit body 2 and the through block 303 enter the connecting rod 1, allowing the breaker drill 306, which is fixed by the fixing block 305, to break the workpiece, open and widen the hole diameter, and facilitate the removal of the jammed coated drill bit body 2 from the breakage point. Example 2

[0023] In addition to all the technical features in Embodiment 1, this embodiment also includes: a groove 4 is provided above the fixing block 305 on the outer wall of the connecting rod 1; an abutment mechanism 5 is provided inside the groove 4; the abutment mechanism 5 includes a slider 501, which is slidably connected inside the groove 4; an abutment block 502 is fixed to one end of the slider 501 that passes through the connecting rod 1; a collar 503 is provided above the slider 501; the abutment mechanism 5 also includes a limiting block 504, which is fixed to the bottom end of the abutment block 502; and the top end of the protruding block 303 corresponds to the limiting block 502. A limiting hole 505 is provided at position 04. The collar 503 fits tightly with the slider 501 and is threadedly connected to the connecting rod 1. The slider 501 slides through the slide groove 4, allowing the abutment block 502 to abut against the through block 303. At the same time, the limiting block 504 is inserted into the limiting hole 505. Then, the collar 503 is adjusted to press the slider 501, which improves the stability of the coated drill bit body 2 after installation and the load-bearing capacity during processing. At the same time, when it is necessary to break the hole, the collar 503 is adjusted so that the abutment block 502 no longer presses against the through block 303, making it easier for the coated drill bit body 2 to enter the connecting rod 1.

[0024] Working principle: The coated drill bit body 2, through the through-hole block 303 fixed by the connecting plate 302, passes through the connecting rod 1 and is connected to the machine tool via the connecting rod 1. Although it can be quickly assembled by fasteners 301 through the connecting hole 304 to perform drilling and other work normally, when jamming occurs, the coated drill bit body 2 is removed from the fasteners 301 and enters the connecting rod 1. The crushing drill 306, fixed by the fixing block 305, performs crushing operations, and the chips are discharged through the chip removal groove 307, thereby covering the coated drill bit body 2 to crush the object and avoid jamming. The coated drill bit body 2 is then detached, and the slider 501, which slides through the slide groove 4, allows the abutment block 502 to abut against the through-hole block 303. The collar 503 is threadedly connected to the connecting rod 1. After adjustment, the slider 501 is pressed to increase the support force on the coated drill bit body 2. At the same time, the limiting block 504 is inserted into the limiting hole 505 to keep the coated drill bit body 2 stable.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coated drill bit with anti-jamming function, comprising a connecting rod (1), characterized in that: The coated drill bit body (2) extends out from the bottom of the connecting rod (1), and an adjustment mechanism (3) is provided inside the connecting rod (1). The adjustment mechanism (3) includes a fastener (301), which is fixed to the outer wall of the connecting rod (1). A through block (303) is slidably connected inside the connecting rod (1). A connecting plate (302) is fixed to the bottom end of the through block (303), and a connecting hole (304) is opened inside the through block (303). A fixing block (305) is fixed to the lower outside of the connecting rod (1), and a breaker drill (306) is fixed to the bottom end of the fixing block (305). A chip removal groove (307) is opened on the outer wall of the breaker drill (306).

2. A coated drill bit with anti-jamming function according to claim 1, characterized in that: The protruding block (303) is detachably connected to the connecting rod (1) by fasteners (301), and the connecting rod (1) is tightly fitted to the connecting plate (302).

3. A coated drill bit with anti-jamming function according to claim 1, characterized in that: The breaker (306) is closely fitted to the coated drill bit body (2), and a sliding structure is formed between the coated drill bit body (2) and the breaker (306).

4. A coated drill bit with anti-jamming function according to claim 1, characterized in that: A groove (4) is provided above the outer wall fixing block (305) of the connecting rod (1), and an abutment mechanism (5) is provided inside the groove (4).

5. A coated drill bit with anti-jamming function according to claim 4, characterized in that: The abutting mechanism (5) includes a slider (501), which is slidably connected inside the groove (4), and an abutting block (502) is fixed at one end of the slider (501) that passes through the connecting rod (1). A collar (503) is provided above the slider (501).

6. A coated drill bit with anti-jamming function according to claim 5, characterized in that: The contact mechanism (5) also includes a limiting block (504), which is fixed at the bottom of the contact block (502), and a limiting hole (505) is provided at the top of the protruding block (303) corresponding to the position of the limiting block (504).

7. A coated drill bit with anti-jamming function according to claim 5, characterized in that: The collar (503) fits tightly against the slider (501), and the collar (503) is threadedly connected to the connecting rod (1).

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