Stepped drill and reamer integrated cutter

Abstract

The utility model provides a kind of stepped drill reamer integrated cutter, it is related to machining tool technical field, including connecting portion, the bottom surface of connecting portion is equipped with reaming portion, the bottom surface of reaming portion is equipped with transition portion, the inside of transition portion is equipped with drilling portion, reaming portion includes stepped reaming column, the outer surface of stepped reaming column is equipped with reaming groove, drilling portion includes drill bit, the upper surface of drill bit is equipped with connecting column, the upper surface of connecting column is equipped with limit block.The utility model is assembled together with connecting portion and machine tool, drilling and reaming can be completed simultaneously, compared with traditional step-by-step processing, greatly reduce the idle time of machine tool, can greatly shorten production cycle, and improve production efficiency, this stepped drill reamer integrated cutter adopts integrated structure, can effectively avoid the positioning error caused by multiple clamping, so that the coaxiality error of hole can be reduced, and high-precision processing demand can be met, to improve processing quality.

Description

Technical Field

[0001] This utility model relates to the field of machining tool technology, specifically a stepped drilling and reaming integrated tool. Background Technology

[0002] In the hole machining process of machining, the traditional process requires first drilling a blank hole with a drill bit, and then using a reamer to enlarge the hole and perform finishing to meet the requirements of hole diameter accuracy and surface finish.

[0003] This step-by-step machining method has many drawbacks. Frequent tool changes lead to a significant increase in machine tool idle time, which seriously affects production efficiency. Multiple tool clamping can easily introduce positioning errors, making it difficult to guarantee the coaxiality of the machined holes and reducing machining accuracy. To address these issues, we propose a stepped drilling and reaming integrated tool. Utility Model Content

[0004] The purpose of this utility model is to provide a stepped drilling and reaming integrated tool to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a stepped drilling and reaming integrated cutter, including a connecting part, a reaming part installed on the bottom surface of the connecting part, a transition part installed on the bottom surface of the reaming part, a drilling part installed inside the transition part, the reaming part including a stepped reaming column, a reaming groove formed on the outer surface of the stepped reaming column, the drilling part including a drill bit, a connecting column installed on the upper surface of the drill bit, and a limit block installed on the upper surface of the connecting column.

[0006] As a further embodiment of this utility model: the transition part includes a transition column, and the upper surface of the transition column is fixedly installed with the bottom surface of the connecting part.

[0007] As a further improvement of this utility model: the bottom surface of the transition column is provided with a connecting groove, and the inner wall of the connecting column is in contact with the inner wall of the connecting groove.

[0008] As a further improvement of this utility model: the inner top wall of the connecting groove is provided with a square groove, and the outer surface of the limiting block is in contact with the inner wall of the square groove.

[0009] As a further improvement of this utility model: the outer surface of the limiting block is provided with a first limiting hole, and the outer surface of the transition column is provided with a second limiting hole.

[0010] As a further improvement of this utility model: the outer side of the connecting part is provided with a limiting pin, and the outer surface of the limiting pin is respectively engaged with the inner wall of the first limiting hole and the inner wall of the second limiting hole.

[0011] As a further embodiment of this utility model: the connecting part includes a column, and the upper surface of the column has a ring-shaped arrangement of connecting notches.

[0012] As a further improvement of this utility model, an arc-shaped mounting hole is provided on the outer surface of the column.

[0013] Compared with the prior art, the beneficial effects of this utility model include: This stepped drilling and reaming integrated tool can simultaneously complete drilling and reaming by assembling the connecting part with the machine tool. Compared with traditional step-by-step processing, it greatly reduces the idle time of the machine tool, significantly shortens the production cycle, and improves production efficiency. This stepped drilling and reaming integrated tool adopts an integrated structure, which can effectively avoid positioning errors caused by multiple clamping, thereby reducing the coaxiality error of the hole and meeting the requirements of high-precision processing, thus improving the processing quality. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 The diagram schematically shows a front view of a stepped drill-reamer integrated tool according to one embodiment of the present invention;

[0016] Figure 2 The diagram schematically shows a front sectional view of a stepped drill-reamer integrated tool according to one embodiment of the present invention.

[0017] Figure 3 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 2 Enlarged structural diagram at point B;

[0019] The following are the labeling elements in the diagram: 1. Drilling section; 101. Drill bit; 102. Connecting post; 103. Limiting block; 104. First limiting hole; 2. Transition section; 201. Transition post; 202. Square groove; 203. Second limiting hole; 204. Connecting groove; 3. Reaming section; 301. Stepped reaming post; 302. Reaming groove; 4. Connecting section; 401. Connecting notch; 402. Arc-shaped mounting hole; 403. Post; 5. Limiting pin. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] like Figures 1-4 As shown, this embodiment provides a stepped drill-reamer integrated tool, including a connecting part 4, a reaming part 3 mounted on the bottom surface of the connecting part 4, a transition part 2 mounted on the bottom surface of the reaming part 3, a drilling part 1 mounted inside the transition part 2, the reaming part 3 including a stepped reaming post 301, the outer surface of the stepped reaming post 301 having a reaming groove 302, the drilling part 1 including a drill bit 101, a connecting post 102 mounted on the upper surface of the drill bit 101, and a limit block 103 mounted on the upper surface of the connecting post 102. The drill bit 101 can drill out a blank hole. When the reaming part 3 enters the interior of the blank hole, the stepped reaming column 301 has a reaming groove 302 on its outer surface, which can further enlarge and finish the inner wall of the blank hole, so that the diameter of the blank hole can meet the diameter accuracy and the inner wall of the blank hole can achieve a high degree of smoothness. This device can perform drilling and reaming operations simultaneously, which can effectively avoid frequent tool changes. It can not only improve production efficiency, but also ensure the coaxiality of the machined hole and improve machining accuracy.

[0022] In this embodiment, the transition section 2 includes a transition post 201. The upper surface of the transition post 201 is fixedly installed with the bottom surface of the connecting section 4. A connecting groove 204 is formed on the bottom surface of the transition post 201. The inner wall of the connecting post 102 contacts the inner wall of the connecting groove 204. A square groove 202 is formed on the inner top wall of the connecting groove 204. The outer surface of the limiting block 103 contacts the inner wall of the square groove 202. By forming a connecting groove 204 on the bottom surface of the transition post 201, the connecting post 102 can extend into the connecting groove 204. Inside 04, the inner diameter of the connecting groove 204 matches the diameter of the connecting column 102, thereby preventing the drill bit 101 from shaking during drilling. By opening a square groove 202 on the inner bottom wall of the connecting groove 204 and making the outer surface of the limiting block 103 contact the inner wall of the square groove 202, the limiting block 103 and the square groove 202 can play a limiting role for the connecting column 102 and the drill bit 101, thereby enabling the transition part 2 to drive the drilling part 1 to rotate synchronously when rotating.

[0023] In this embodiment, a first limiting hole 104 is provided on the outer surface of the limiting block 103, a second limiting hole 203 is provided on the outer surface of the transition column 201, and a limiting pin 5 is provided on the outside of the connecting part 4. The outer surface of the limiting pin 5 is respectively engaged with the inner wall of the first limiting hole 104 and the inner wall of the second limiting hole 203. The connecting part 4 includes a column 403, the upper surface of the column 403 is provided with annularly arranged connecting notches 401, and the outer surface of the column 403 is provided with an arc-shaped mounting hole 402. By providing the first limiting hole 104 on the outer surface of the limiting block 103 and the second limiting hole 203 on the outer surface of the transition column 201, the connecting part 4 can achieve the desired connection. A second limiting hole 203 is opened on the surface, so that after the limiting pin 5 is set inside the first limiting hole 104 and the second limiting hole 203, the connection strength between the transition column 201 and the drilling part 1 can be further strengthened. By opening a ring-shaped connection notch 401 on the upper surface of the column 403, the operator can easily insert the top of the connecting part 4 into the position of the machine tool to install the tool, and can effectively prevent the column 403 from spinning freely. By opening an arc-shaped mounting hole 402 on the outer surface of the column 403, the operator can easily and quickly assemble the integrated tool with the machine tool.

[0024] The working principle of this utility model is as follows: First, the operator assembles the connecting part 4 of the integrated tool with the machine tool. Then, the machine tool can drive the reaming part 3, the transition part 2 and the drilling part 1 to rotate at a high speed through the connecting part 4. The high-speed rotating drill bit 101 can quickly process a blank hole on the outer surface of the workpiece. After the drill bit 101 drills through the workpiece, the reaming part 3 can gradually enter the interior of the blank hole. When the reaming part 3 gradually enters the interior of the blank hole, the reaming groove 302 can further ream the inner diameter of the blank hole, and the diameter of the blank hole can gradually reach the preset diameter accuracy.

[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A stepped drill-reamer integrated tool, characterized in that, The device includes a connecting part (4), a reaming part (3) is installed on the bottom surface of the connecting part (4), a transition part (2) is installed on the bottom surface of the reaming part (3), a drilling part (1) is installed inside the transition part (2), the reaming part (3) includes a stepped reaming column (301), the outer surface of the stepped reaming column (301) is provided with a reaming groove (302), the drilling part (1) includes a drill bit (101), a connecting column (102) is installed on the upper surface of the drill bit (101), and a limit block (103) is installed on the upper surface of the connecting column (102).

2. The stepped drilling and reaming integrated tool according to claim 1, characterized in that, The transition section (2) includes a transition column (201), the upper surface of which is fixedly installed with the bottom surface of the connecting section (4).

3. A stepped drilling and reaming integrated tool according to claim 2, characterized in that, The bottom surface of the transition column (201) is provided with a connecting groove (204), and the inner wall of the connecting column (102) is in contact with the inner wall of the connecting groove (204).

4. A stepped drilling and reaming integrated tool according to claim 3, characterized in that, The inner top wall of the connecting groove (204) is provided with a square groove (202), and the outer surface of the limiting block (103) is in contact with the inner wall of the square groove (202).

5. A stepped drilling and reaming integrated tool according to claim 4, characterized in that, The outer surface of the limiting block (103) is provided with a first limiting hole (104), and the outer surface of the transition column (201) is provided with a second limiting hole (203).

6. A stepped drill-reamer integrated tool according to claim 5, characterized in that, The connecting part (4) is provided with a limiting pin (5) on its outside. The outer surface of the limiting pin (5) is engaged with the inner wall of the first limiting hole (104) and the inner wall of the second limiting hole (203).

7. A stepped drill-reamer as described in claim 6, characterized in that, The connecting part (4) includes a column (403), and the upper surface of the column (403) is provided with annularly arranged connecting notches (401).

8. A stepped drilling and reaming integrated tool according to claim 7, characterized in that, The outer surface of the column (403) is provided with an arc-shaped mounting hole (402).

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