Anti-cracking stainless steel fixed point drill

Abstract

The utility model belongs to the technical field of fixed-point drills, and particularly relates to an anti-cracking stainless steel fixed-point drill, which aims at solving the problem of material cracking caused by inclination of an existing drill bit, and adopts the technical scheme that the anti-cracking stainless steel fixed-point drill comprises a limiting sleeve, the drill bit penetrates out of the limiting sleeve, and a limiting mechanism is arranged on one side of the drill bit in the limiting sleeve; the drill bit is clamped with the high-speed bearing in a rotating mode, when the drill bit drills, the sliding plate drives the penetrating rod to penetrate into the fixing sleeve embedded in the fixing block, the sliding process of the sliding plate is kept stable, the limiting sleeve can abut against a machined part, and therefore the machined part is prevented from being damaged. Accordingly, the situation that the drill bit deviates or shakes, the drill bit and a machined part are staggered, and consequently the drill bit cracks can be avoided, the sealing performance is kept through a rubber pad, piston movement is formed, air pressure circulates through an air leakage hole, the stability of the sliding process is further improved, and the situation of collision is avoided through a spring.

Description

Technical Field

[0001] This utility model relates to a stainless steel fixed-point drill, specifically a crack-resistant stainless steel fixed-point drill, belonging to the field of fixed-point drill technology. Background Technology

[0002] A stainless steel locating drill is a tool specifically designed for positioning and drilling holes in stainless steel materials. It is used to machine shallow holes or recesses in precise positions on workpieces. It is commonly used in the field of machining, especially before drilling, tapping and other machining processes, to play a positioning and guiding role, thereby improving the positional accuracy of the drilling and reducing the positional deviation of the hole.

[0003] In existing technologies, such as the novel fixed-point drilling drill disclosed in CN219484309U, the entire device is installed on a drilling machine via a connector. The drill bit is aligned with the designated location, and one or more pressing grooves are used to press the rotary table, causing the friction blocks on its surface to adhere and press against the outside of the drilling position. During drilling, because the friction blocks are designed with an arc shape and are numerous, the friction force generated during drilling is greater than the reaction force generated by the drilling friction. In this way, the drill bit will not shift its position due to the large reaction force of the friction force in the early stage of drilling. Furthermore, when the drill body rotates, the rotary table will not be driven to rotate by the sliding groove. Since the rotary table is designed outside the drill body, it will not affect the drilling. The overall positioning is improved by the large friction force generated by the external rotary table and friction blocks, thus increasing the overall drilling accuracy. This prevents the drill core from being squeezed from the inside, thereby reducing the overall lifespan. The whole system can be widely applied to drilling machines.

[0004] However, in implementing the relevant technology, the following problems were found in the new type of fixed-point drilling drill with the above design: In the existing technology, the drilling accuracy can be improved by the cooperation of components such as friction blocks, but in the actual use, since the drill bit needs to be aligned with the object for processing, it may deflect during rotation, resulting in material breakage. In view of this, a crack-resistant stainless steel fixed-point drill is provided to overcome the above defects. Utility Model Content

[0005] This invention provides a crack-resistant stainless steel fixed-point drill to solve the technical problem that the drill bit may deviate during rotation when it needs to be aligned with the object for processing, which may lead to material breakage.

[0006] The present invention achieves the above objectives through the following technical solution: a crack-resistant stainless steel fixed-point drill, including a limiting sleeve, wherein a drill bit protrudes from the inside of the limiting sleeve, and a limiting mechanism is provided on one side of the drill bit inside the limiting sleeve.

[0007] The limiting mechanism includes a sliding plate, which is slidably connected inside the limiting sleeve. A high-speed bearing is embedded inside the sliding plate. A fixing block is fixedly installed below the sliding plate inside the limiting sleeve. A fixing sleeve is embedded inside the fixing block. A through rod extends out from inside the fixing sleeve, and a limiting plate is fixedly installed on the outer wall of one end of the through rod that enters the fixing sleeve.

[0008] As a further improvement of this utility model: a spring is fixedly installed at the bottom end of the protruding rod, a rubber pad is embedded at the bottom end of the limiting plate, and a vent hole is opened at the bottom inside the fixing sleeve.

[0009] As a further improvement of this utility model: the limiting plate is bonded to the rubber pad, and the limiting plate and the fixing sleeve form a sliding structure.

[0010] As a further improvement of this utility model: a filter screen is embedded in the lower part of the outer wall of the limiting sleeve, and an abutting mechanism is provided on one side of the filter screen on the outer wall of the limiting sleeve.

[0011] As a further embodiment of this utility model: the abutting mechanism includes a mounting groove, which is opened on one side of the filter screen on the outer wall of the limiting sleeve, and a rotating plate is rotatably connected inside the mounting groove.

[0012] As a further embodiment of this utility model: a rotating rod extends through the interior of the rotating plate, and limit holes are opened on both sides of the interior of the mounting groove corresponding to the position of the rotating rod. An abutment collar is slidably connected to one side of the rotating plate on the outer wall of the limit sleeve.

[0013] As a further improvement of this utility model: the limiting sleeve is threadedly connected to the contact collar, and the contact collar and the rotating plate form a sliding structure.

[0014] The beneficial effects of this utility model are: the drill bit and the high-speed bearing rotate and engage. When the drill bit drills in, the sliding plate drives the through rod to pass through the fixed sleeve embedded in the fixed block, keeping the sliding plate stable during the sliding process. This allows the limiting sleeve to abut against the workpiece, thus preventing the drill bit from deflecting or shaking, which could lead to misalignment with the workpiece and breakage. The rubber gasket maintains the seal, thus forming piston movement. Air pressure flows through the vent hole, further improving the stability of the sliding process. The spring prevents collisions.

[0015] When the limiting sleeve comes into contact with the workpiece, the rotating rod is engaged through the limiting hole, causing the rotating plate to rotate and come into contact with the workpiece. Then, the position is adjusted by the threaded connection between the contact ring and the limiting sleeve, so that the rotating plate comes into contact from above, thereby increasing the contact area between the limiting sleeve and the workpiece. This further improves stability and prevents the limiting sleeve from shaking during the operation of the drill bit, which could lead to misalignment between the drill bit and the workpiece and cause breakage. 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 internal structure of the limiting sleeve of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing sleeve of this utility model;

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

[0020] In the diagram: 1. Limiting sleeve; 2. Drill bit; 3. Limiting mechanism; 301. Sliding plate; 302. High-speed bearing; 303. Fixing block; 304. Fixing sleeve; 305. Through rod; 306. Limiting plate; 307. Spring; 308. Rubber pad; 309. Vent hole; 4. Filter screen; 5. Abutting mechanism; 501. Installation groove; 502. Rotating plate; 503. Limiting hole; 504. Rotating rod; 505. Abutting collar. 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 4As shown, a type of anti-cracking stainless steel fixed-point drill includes a limiting sleeve 1, with a drill bit 2 extending through the inside of the limiting sleeve 1. A limiting mechanism 3 is provided on one side of the drill bit 2 inside the limiting sleeve 1. The limiting mechanism 3 includes a sliding plate 301, which is slidably connected inside the limiting sleeve 1. A high-speed bearing 302 is embedded inside the sliding plate 301. A fixing block 303 is fixedly installed below the sliding plate 301 inside the limiting sleeve 1. A fixing sleeve 304 is embedded inside the fixing block 303. A through rod 305 extends through the inside of the fixing sleeve 304. A limiting plate 306 is fixedly installed on the outer wall of one end of the through rod 305 that penetrates into the fixing sleeve 304. A spring 307 is fixedly installed at the bottom end of the through rod 305. A rubber pad 308 is embedded at the bottom end of the limiting plate 306. The fixed sleeve 304 has a vent hole 309 at its bottom. The limiting plate 306 is bonded to the rubber pad 308, and the limiting plate 306 and the fixed sleeve 304 form a sliding structure. The drill bit 2 is engaged with the high-speed bearing 302. When the drill bit 2 drills, the sliding plate 301 drives the through rod 305 to pass through the fixed sleeve 304 embedded in the fixed block 303, keeping the sliding plate 301 stable during the sliding process. This allows the limiting sleeve 1 to abut against the workpiece, thus preventing the drill bit 2 from deflecting or shaking, which could lead to misalignment with the workpiece and breakage. The rubber pad 308 maintains the seal, thus forming a piston movement. Air pressure flows through the vent hole 309, further improving the stability of the sliding process. The spring 307 prevents collisions. Example 2

[0023] In addition to all the technical features in Embodiment 1, this embodiment also includes: a filter screen 4 is embedded in the lower part of the outer wall of the limiting sleeve 1; an abutting mechanism 5 is provided on one side of the filter screen 4 on the outer wall of the limiting sleeve 1; the abutting mechanism 5 includes a mounting groove 501, which is opened on one side of the filter screen 4 on the outer wall of the limiting sleeve 1; a rotating plate 502 is rotatably connected inside the mounting groove 501; a rotating rod 504 extends through the rotating plate 502; limiting holes 503 are opened on both sides of the mounting groove 501 corresponding to the positions of the rotating rod 504; an abutting collar 505 is slidably connected to one side of the rotating plate 502 on the outer wall of the limiting sleeve 1; and the limiting sleeve 1... The limiting sleeve 1 is threadedly connected to the abutting collar 505, and a sliding structure is formed between the abutting collar 505 and the rotating plate 502. When the limiting sleeve 1 abuts against the workpiece, the rotating rod 504 is engaged by the limiting hole 503, causing the rotating plate 502 to rotate and abut against the workpiece. Then, the position is adjusted by the threaded connection between the abutting collar 505 and the limiting sleeve 1, so that the rotating plate 502 abuts from above, thereby increasing the contact area between the limiting sleeve 1 and the workpiece. This can further improve stability and prevent the limiting sleeve 1 from shaking during the operation of the drill bit 2, which could lead to misalignment between the drill bit 2 and the workpiece, resulting in breakage.

[0024] Working principle: The drill bit 2 penetrates the limiting sleeve 1 and rotates and engages with the high-speed bearing 302 embedded in the sliding plate 301. During drilling, the limiting sleeve 1 abuts against the workpiece to prevent deviation and wobbling, keeping the drill bit 2 stable and preventing breakage of the workpiece. During drilling, the sliding plate 301 drives the through rod 305 to slide stably inside the fixed sleeve 304 fixed by the fixed block 303. The fixed sleeve 304 and through rod 305 work together to maintain stability during sliding. The rubber gasket 308 provides a seal, and the piston motion further enhances the stability of the sliding plate 301. Gas flows slowly through the vent 309, preventing internal leakage. The air pressure is affected, and the spring 307 prevents collisions. After processing, the spring 307 allows the sliding plate 301 to reset. The limiting plate 306 prevents the spring 307 from pushing too much, allowing the through rod 305 to disengage from the fixed sleeve 304. The rotating plate 502 rotates through the limiting hole 503 and the rotating rod 504, and passes through the mounting groove 501 to abut against the workpiece. At the same time, the abutting collar 505 is threadedly connected to the limiting sleeve 1, which can abut against the rotating plate 502 to prevent movement or loosening, increase the contact area with the workpiece, and improve the stability of the drill bit 2 during operation. The filter screen 4 facilitates air flow and heat dissipation, preventing the heat from rotational friction from being difficult to dissipate.

[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 type of anti-cracking stainless steel fixed-point drill, comprising a limiting sleeve (1), characterized in that: A drill bit (2) extends through the inside of the limiting sleeve (1), and a limiting mechanism (3) is provided on one side of the drill bit (2) inside the limiting sleeve (1). The limiting mechanism (3) includes a sliding plate (301), which is slidably connected inside the limiting sleeve (1). A high-speed bearing (302) is embedded inside the sliding plate (301). A fixing block (303) is fixedly installed below the sliding plate (301) inside the limiting sleeve (1). A fixing sleeve (304) is embedded inside the fixing block (303). A through rod (305) extends out from inside the fixing sleeve (304). A limiting plate (306) is fixedly installed on the outer wall of one end of the through rod (305) that extends into the fixing sleeve (304).

2. The anti-scraping stainless steel fixed-point drill according to claim 1, characterized in that: A spring (307) is fixedly installed at the bottom end of the through rod (305), a rubber pad (308) is embedded at the bottom end of the limiting plate (306), and a vent hole (309) is opened at the bottom end of the inside of the fixing sleeve (304).

3. The anti-scraping stainless steel fixed-point drill according to claim 2, characterized in that: The limiting plate (306) is bonded to the rubber pad (308), and the limiting plate (306) and the fixed sleeve (304) form a sliding structure.

4. The anti-scraping stainless steel fixed-point drill according to claim 1, characterized in that: A filter screen (4) is embedded in the lower part of the outer wall of the limiting sleeve (1), and an abutment mechanism (5) is provided on one side of the filter screen (4) on the outer wall of the limiting sleeve (1).

5. The anti-scraping stainless steel fixed-point drill according to claim 4, characterized in that: The abutment mechanism (5) includes a mounting groove (501), which is located on one side of the filter screen (4) on the outer wall of the limiting sleeve (1), and a rotating plate (502) is rotatably connected inside the mounting groove (501).

6. The anti-scraping stainless steel fixed-point drill according to claim 5, characterized in that: A rotating rod (504) extends through the interior of the rotating plate (502). Limiting holes (503) are provided on both sides of the interior of the mounting groove (501) corresponding to the position of the rotating rod (504). A contacting collar (505) is slidably connected to one side of the rotating plate (502) on the outer wall of the limiting sleeve (1).

7. The anti-scraping stainless steel fixed-point drill according to claim 6, characterized in that: The limiting sleeve (1) is threadedly connected to the abutting collar (505), and the abutting collar (505) and the rotating plate (502) form a sliding structure.

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