Stepped drill with stepped chip breaking structure

Abstract

The utility model belongs to the technical field of step drills, and particularly relates to a step drill with a step chip breaking structure, which aims at solving the problem of chip splashing in the prior art and comprises a drill rod, a chip breaking part is fixed at the bottom end of the drill rod, a drill bit part is connected below the chip breaking part, and a collecting mechanism is arranged outside the drill rod. According to the device, chippings are prevented from splashing under the wrapping of the rotating sleeve, meanwhile, the fixed plate is in reverse threaded connection with the rotating sleeve, the fixed plate is matched with the storage cylinder to form a storage space, the chippings are accumulated, the chippings are prevented from splashing, the chippings are prevented from splashing, and the chippings are prevented from splashing. And the position of the drill bit part is reserved through the placement hole, and the rotating sleeve is rotationally connected with the lantern ring through the limiting ring, so that when the drill bit part is drilled by abutting against an object, a drilling space is reserved through sliding of the lantern ring, and the rotating sleeve is prevented from rotating along with the lantern ring.

Description

Technical Field

[0001] This utility model relates to a stepped drill, specifically a stepped drill with a stepped chip-breaking structure, and belongs to the field of stepped drill technology. Background Technology

[0002] A step drill is a type of drill bit-like machining tool used for high-precision, high-surface-quality hole machining in a single operation. It ensures the machining accuracy of the hole while reducing its surface roughness. Also known as a step drill or pagoda drill, it is mainly used for drilling thin steel plates within 3mm. One drill bit can replace multiple drill bits and can machine holes of different diameters as needed. It can also complete the machining of large holes in one operation without the need to change drill bits or drill positioning holes for various parts.

[0003] In the prior art, such as the stepped drill with a stepped chip-breaking structure disclosed in CN221817421U, a chip-breaking structure is added to the cutting edge at the stepped position by combining the drill rod, threaded groove, cutting edge, chip-breaking structure, chip-breaking groove, cutting edge one, cutting edge two, etc., thereby cutting narrower long strip-shaped chips. This effectively avoids chips of this shape from easily scratching the workpiece and wrapping around the tool, thus improving processing efficiency and saving costs.

[0004] However, in implementing the relevant technology, it was found that the stepped drill with a stepped chip-breaking structure designed above has the following problems: Although the existing technology can break chips by cooperating with components such as chip-breaking grooves, the chips will accumulate on the outside of the object or spread, which will affect the working environment and require manual cleaning and maintenance, which is quite troublesome. In view of this, a stepped drill with a stepped chip-breaking structure is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem of debris accumulating on the outside of objects or spreading, thus affecting the working environment and requiring cumbersome manual cleaning and maintenance, by providing a stepped drill with a stepped chip-breaking structure.

[0006] The present invention achieves the above objectives through the following technical solution: a stepped drill with a stepped chip-breaking structure, comprising a drill rod, a chip-breaking part fixed at the bottom end of the drill rod, and a drill head connected below the chip-breaking part, and a collection mechanism provided on the outside of the drill rod.

[0007] The collecting mechanism includes a collar, which is slidably connected to the outside of the drill rod, and a limiting ring is fixed to the outside of the collar. A rotating sleeve is rotatably connected to the outside of the limiting ring, and a fixing plate extends through the lower part of the inside of the rotating sleeve. A storage tube is embedded at the top of the fixing plate, and a placement hole is opened inside the storage tube.

[0008] As a further embodiment of this utility model: the rotating sleeve forms a rotating structure between the limiting ring and the collar, and the collar and the drill rod form a sliding structure.

[0009] As a further improvement of this utility model: a slider is fixed to the outer wall of the drill rod facing the collar, and an abutment mechanism is provided on one side of the slider.

[0010] As a further embodiment of this utility model: the abutting mechanism includes a sliding groove, which is opened on the outer wall of the drill rod at the position corresponding to the slider, and a fixing ring is fixed on the upper outer side of the drill rod. A connecting cylinder is fixed to the outer wall of the fixing ring facing the collar, and a through rod extends out of the inside of the connecting cylinder.

[0011] As a further embodiment of this utility model: the abutting mechanism further includes a limiting plate, which is fixed to one end of the through rod that enters the connecting cylinder, and a spring is embedded in the outer wall of the limiting plate.

[0012] As a further improvement of this utility model: the slider forms a sliding structure with the drill rod through the sliding groove, and the drill rod is welded to the fixing ring.

[0013] As a further improvement of this utility model: the through rod and the connecting cylinder form a sliding structure, and the connecting cylinder forms an elastic structure with the limiting plate through the spring.

[0014] The beneficial effects of this utility model are: the debris is prevented from splashing under the wrapping of the rotating sleeve, and at the same time, the fixed plate is connected to the rotating sleeve by a reverse thread, forming a storage space with the storage tube, allowing the debris to accumulate, which is convenient for unified cleaning after disassembly and assembly. The position of the drill bit is reserved through the mounting hole, and the rotating sleeve is rotatably connected to the collar through the limiting ring, so that when the drill bit drills into the object, the collar slides to reserve the drilling space and prevents the rotating sleeve from rotating with the collar.

[0015] The beneficial effects of this utility model are: the collar slides stably along the drill rod via the slider and the groove, and at the same time, a telescopic rod consisting of a connecting cylinder and a through rod is fixed between the fixed ring and the collar, which further improves the sliding stability of the collar. When the telescopic rod extends, the limiting plate prevents the through rod from passing through the connecting cylinder, and at the same time, the spring allows the rotating sleeve to be reset after processing. 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 drill head structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the storage tube structure of this utility model;

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

[0020] In the diagram: 1. Drill rod; 2. Chip breaking section; 3. Drill head; 4. Collection mechanism; 401. Collar; 402. Limiting ring; 403. Rotating sleeve; 404. Fixing plate; 405. Storage cylinder; 406. Installation hole; 5. Sliding block; 6. Abutting mechanism; 601. Slide groove; 602. Fixing ring; 603. Connecting cylinder; 604. Through rod; 605. Limiting plate; 606. Spring. 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 stepped drill with a stepped chip-breaking structure includes a drill rod 1, a chip-breaking section 2 fixed at the bottom end of the drill rod 1, a drill head 3 connected below the chip-breaking section 2, and a collection mechanism 4 provided on the outside of the drill rod 1. The collection mechanism 4 includes a collar 401, which is slidably connected to the outside of the drill rod 1. A limit ring 402 is fixed to the outside of the collar 401, and a rotating sleeve 403 is rotatably connected to the outside of the limit ring 402. A fixing plate 404 extends through the lower part of the rotating sleeve 403, and a storage tube 405 is embedded at the top of the fixing plate 404. The storage tube 405 has a mounting hole 406 inside, and the rotating sleeve 403 passes through the limit ring 402. The rotating sleeve 402 and the collar 401 form a rotating structure, while the collar 401 and the drill rod 1 form a sliding structure. The debris is prevented from splashing under the wrapping of the rotating sleeve 403. At the same time, the rotating sleeve 403 is connected to the fixed plate 404 by a reverse thread, and together with the storage tube 405, a storage space is formed to allow the debris to accumulate, which is convenient for unified cleaning after disassembly and assembly. The position of the drill head 3 is reserved through the mounting hole 406. The rotating sleeve 403 is rotatably connected to the collar 401 through the limiting ring 402. Thus, when the drill head 3 is drilled by contacting an object, the collar 401 slides to reserve the drilling space and prevents the rotating sleeve 403 from rotating with the collar 401. Example 2

[0023] In addition to all the technical features in Embodiment 1, this embodiment also includes: a slider 5 fixed to the outer wall of the drill rod 1 facing the collar 401; an abutment mechanism 6 provided on one side of the slider 5; the abutment mechanism 6 includes a groove 601, which is opened on the outer wall of the drill rod 1 corresponding to the slider 5; a fixing ring 602 fixed to the upper outer side of the drill rod 1; a connecting cylinder 603 fixed to the outer wall of the fixing ring 602 facing the collar 401; a through rod 604 extending from the inside of the connecting cylinder 603; and a limiting plate 605 fixed to the end of the through rod 604 that enters the connecting cylinder 603. A spring 606 is embedded in the outer wall of the limiting plate 605. The slider 5 passes through... The slide groove 601 and the drill rod 1 form a sliding structure. The drill rod 1 is welded to the fixed ring 602. The through rod 604 and the connecting cylinder 603 form a sliding structure. The connecting cylinder 603 forms an elastic structure with the limiting plate 605 through the spring 606. The collar 401 slides stably along the drill rod 1 through the slider 5 and the slide groove 601. At the same time, a telescopic rod composed of the connecting cylinder 603 and the through rod 604 is fixed between the fixed ring 602 and the collar 401 to further improve the sliding stability of the collar 401. When the telescopic rod extends, the limiting plate 605 prevents the through rod 604 from passing through the connecting cylinder 603. At the same time, the spring 606 allows the rotating sleeve 403 to be reset after processing.

[0024] Working principle: The drill rod 1 and the drill head 3 form a stepped drill. The chip breaking part 2 achieves the chip breaking effect. At the same time, the rotating sleeve 403 is rotatably connected by the collar 401 and the limiting ring 402 and is sleeved on the outside of the drill head 3. The storage cylinder 405, which is fixed by the fixing plate 404, forms a storage space to control the chips and prevent them from splashing while storing them. The fixing plate 404 and the rotating sleeve 403 are connected by reverse threads for easy disassembly and cleaning. The drill head 3 passes through the mounting hole 406. When the drill head 3 drills in, the collar 401 slides along the slide groove 601 towards the fixing ring 602 via the slider 5 to avoid the limitation situation. At the same time, the connecting cylinder 603 and the through rod 604 form a telescopic rod to maintain the stability of the sliding. The limiting plate 605 prevents the through rod 604 from disengaging during extension. The rotating sleeve 403 can be reset by the spring 606 after drilling is completed.

[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 stepped drill with a stepped chip-breaking structure, comprising a drill rod (1), characterized in that: The bottom end of the drill rod (1) is fixed with a chip breaking part (2), and a drill head (3) is connected below the chip breaking part (2). A collection mechanism (4) is provided on the outside of the drill rod (1). The collecting mechanism (4) includes a collar (401), which is slidably connected to the outside of the drill rod (1), and a limiting ring (402) is fixed to the outside of the collar (401). A rotating sleeve (403) is rotatably connected to the outside of the limiting ring (402), and a fixing plate (404) extends through the lower part of the inside of the rotating sleeve (403). A storage tube (405) is embedded at the top of the fixing plate (404), and a placement hole (406) is opened inside the storage tube (405).

2. A stepped drill with a stepped chip-breaking structure according to claim 1, characterized in that: The rotating sleeve (403) forms a rotating structure with the retaining ring (402) and the collar (401), and the collar (401) forms a sliding structure with the drill rod (1).

3. A stepped drill with a stepped chip-breaking structure according to claim 1, characterized in that: The collar (401) has a slider (5) fixed to the outer wall of the drill rod (1), and an abutment mechanism (6) is provided on one side of the slider (5).

4. A stepped drill with a stepped chip-breaking structure according to claim 3, characterized in that: The abutting mechanism (6) includes a slide groove (601), which is opened on the outer wall of the drill rod (1) at the position corresponding to the slider (5). A fixing ring (602) is fixed on the upper outer side of the drill rod (1). A connecting cylinder (603) is fixed on the outer wall of the fixing ring (602) facing the collar (401), and a through rod (604) extends through the inside of the connecting cylinder (603).

5. A stepped drill with a stepped chip-breaking structure according to claim 4, characterized in that: The abutment mechanism (6) further includes a limiting plate (605), which is fixed at one end of the through rod (604) that passes through the connecting cylinder (603), and a spring (606) is embedded in the outer wall of the limiting plate (605).

6. A stepped drill with a stepped chip-breaking structure according to claim 4, characterized in that: The slider (5) forms a sliding structure with the drill rod (1) through the sliding groove (601), and the drill rod (1) is welded to the fixing ring (602).

7. A stepped drill with a stepped chip-breaking structure according to claim 5, characterized in that: The through rod (604) and the connecting cylinder (603) form a sliding structure, and the connecting cylinder (603) and the limiting plate (605) form an elastic structure through the spring (606).

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