Drilling and chamfering combined machining tool

Abstract

The utility model discloses a drilling and chamfering composite processing tool. The drilling and chamfering composite processing tool of the utility model includes a handle, one end forms the main shaft connecting portion for connecting with the main shaft of machine tool, the drilling head is used for drilling, the chamfering head is used for chamfering to the drilling and the cutting edge of chamfering head is located at the side of chamfering head far away from drilling head, the drilling head is detachably installed on the handle, and the chamfering head is movably installed on the handle to adjust the distance between the drilling head. The drilling and chamfering composite processing tool of the utility model through detachably installing the drilling head on the handle, movably installing the chamfering head on the handle, according to the different processing aperture, can flexibly replace the drilling head of different diameters, and then through moving the chamfering head, satisfies the chamfering processing requirement of different aperture, can process the aperture of different diameters under the premise of not replacing the handle, improves the versatility and practicality of the tool.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically, it relates to a drilling and chamfering composite machining tool. Background Technology

[0002] Currently, hole machining is a very common basic process in the machining industry. The conventional hole machining operation in the industry generally adopts a step-by-step machining method of drilling first and then chamfering. This traditional machining method requires changing tools or equipment to perform chamfering after drilling, which not only increases the number of machining steps and time costs, but also easily introduces errors during multiple clamping and process changes, affecting the accuracy and overall quality of hole machining, resulting in low machining efficiency.

[0003] In existing technologies, integrated drilling and turning techniques are being adopted to improve efficiency. However, traditional integrated drilling and turning tools typically need to be customized according to the specific size of the hole to be machined. This means that each specific hole diameter requires a dedicated tool, which not only increases machining costs but also leads to management inconvenience and wasted tool resources when facing diverse machining needs, greatly limiting production flexibility and economy. Therefore, designing a flexible tool that can machine different hole diameters without changing the tool holder is an urgent problem to be solved.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art. The primary objective is to provide a drilling and chamfering composite machining tool. By detachably mounting the drilling head on the tool holder and movably mounting the chamfering head on the tool holder, it is convenient to replace drilling heads of different diameters and adjust the corresponding chamfering heads, thereby improving the versatility and practicality of the tool.

[0006] The second objective is to provide a combined drilling and chamfering tool, which facilitates installation and improves processing efficiency by placing the drilling head and chamfering head on the same side of the tool holder.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A drilling and chamfering composite machining tool, comprising

[0009] The tool holder has a spindle connection part at one end, which is used to connect to the machine tool spindle.

[0010] Drill bit, used for drilling;

[0011] A chamfering cutter, used to chamfer a drilled hole, wherein the cutting edge of the chamfering cutter is located on the side of the chamfering cutter away from the drilled hole cutter;

[0012] The drilling tool head can be detachably mounted on the tool holder;

[0013] The chamfering cutter head is movably mounted on the shank to adjust the distance between it and the drilling cutter head.

[0014] Furthermore, the tool holder has a tool head mounting portion for fixing the drilling tool head and the chamfering tool head;

[0015] The drilling tip and the chamfering tip are located on the same side of the tip mounting portion.

[0016] Furthermore, the chamfering cutter head is installed at the end of the cutter head mounting portion away from the spindle connection portion;

[0017] The chamfering cutter head is slidably mounted on the cutter head mounting portion to be close to or away from the drilling cutter head.

[0018] Furthermore, a first limiting part is provided at the end of the cutter head mounting part;

[0019] The chamfering cutter head is provided with a second limiting part;

[0020] The second limiting part slides on the first limiting part in a direction perpendicular to the axis of the drilling head.

[0021] Furthermore, the chamfering cutter head is fixed to the first limiting part by a second fastener;

[0022] The end of the second fastener abuts against the surface of the first limiting portion.

[0023] Furthermore, a second hole is provided on the chamfering cutter head;

[0024] The second fastener is threaded into the second hole;

[0025] The axis of the second hole is perpendicular to the sliding direction of the chamfering cutter.

[0026] Furthermore, the cutting head mounting part is provided with a mounting hole for inserting the drilling cutting head part;

[0027] The mounting hole penetrates the end of the cutter head mounting part and extends inward by a certain length;

[0028] The axis of the mounting hole coincides with the axis of the cutter head mounting part and the axis of the spindle connection part.

[0029] Furthermore, a first fastener is provided on the peripheral wall of the cutting head mounting part for fixing the drilling cutting head;

[0030] The end of the first fastener abuts against the peripheral wall of the drill bit.

[0031] Furthermore, a first hole is formed on the peripheral wall of the cutter head mounting part;

[0032] The first fastener is threadedly connected to the first hole;

[0033] The axis of the first hole is perpendicular to the axis of the mounting hole.

[0034] Furthermore, both the cutter head mounting portion and the spindle connecting portion are cylindrical structures;

[0035] The diameter of the cutter head mounting part is larger than the diameter of the spindle connection part.

[0036] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0037] 1. The drilling and chamfering composite machining tool of this utility model has a drilling head that can be detachably installed on the tool holder and a chamfering head that can be movably installed on the tool holder. Different drilling heads can be flexibly replaced according to different hole diameters. By moving the chamfering head, the chamfering requirements of different hole diameters can be met. Different hole diameters can be processed without changing the tool holder, thus improving the versatility and practicality of the tool.

[0038] 2. The drilling and chamfering composite machining tool of this utility model, by setting mounting holes and a first fastener, allows the tool holder to meet the drilling needs of various hole diameters. When facing different machining tasks, it is not necessary to replace the entire tool holder, but only to replace the drilling head of the corresponding diameter, which greatly improves the flexibility and efficiency of machining.

[0039] 3. The drilling and chamfering composite machining tool of this utility model is modularly connected to the T-shaped groove on the chamfering cutter head via a T-shaped slide rail on the tool holder. This connection method allows the chamfering cutter head to move flexibly along the T-shaped slide rail according to the size of the hole to be machined, and to precisely adjust its position, ensuring that it can perform corresponding chamfering on holes of different diameters after drilling, thus realizing the integrated drilling and chamfering function.

[0040] Meanwhile, this utility model has a simple structure, significant effects, and is suitable for widespread use.

[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0043] Figure 1 This is a top view of the drilling and chamfering composite machining tool of this utility model;

[0044] Figure 2 This is a front view of the drilling and chamfering composite machining tool of this utility model;

[0045] Figure 3 This is a partial sectional view of the drilling and chamfering composite machining tool of this utility model;

[0046] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0047] Figure 5 This is a schematic diagram of the machining process of the drilling and chamfering composite machining tool of this utility model.

[0048] In the figure: 1. Tool holder; 11. Spindle connection part; 12. Tool head mounting part; 13. Mounting hole; 14. First fastener; 15. First hole; 16. First limiting part; 2. Drilling tool head; 3. Chamfering tool head; 31. Second limiting part; 32. Second fastener; 33. Second hole.

[0049] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0051] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] like Figures 1 to 5 As shown, the drilling and chamfering composite machining tool of this utility model includes a tool holder 1, a drilling head 2, and a chamfering head 3. One end of the tool holder 1 forms a spindle connection part 11, which is used to connect with the machine tool spindle. The drilling head 2 is used for drilling, and the chamfering head 3 is used for chamfering the drilled hole.

[0054] The specific machining process is as follows: the spindle connecting part 11 of the tool holder 1 is connected to the spindle of the machine tool. The rotation of the machine tool spindle drives the drilling head 2 to rotate, thereby realizing the drilling operation. Simultaneously with drilling, the chamfering head 3 can also perform chamfering. In this way, drilling and chamfering operations can be completed in a single process, simplifying the process, improving machining efficiency, and reducing manufacturing costs. At the same time, it avoids the time loss and accuracy errors caused by process transitions, significantly improving drilling efficiency. Furthermore, integrated machining reduces the impact of multiple clamping operations on machining accuracy, ensuring machining quality.

[0055] Depending on the size of the hole to be machined, different diameter drilling heads 2 and corresponding chamfering heads 3 are required. Traditional drilling and chamfering tools are typically custom-made according to the specific size of the hole. This means that each specific hole diameter requires a dedicated tool, increasing machining costs. Furthermore, when facing diverse machining needs, a large number of custom-made tools of different specifications cause management inconvenience and waste of tool resources, significantly limiting production flexibility and economy.

[0056] To address the aforementioned issues, in this embodiment, the drilling head 2 is detachably mounted on the tool holder 1, and the chamfering head 3 is movably mounted on the tool holder 1 to adjust the distance between it and the drilling head 2. Depending on the diameter of the hole to be machined, drilling heads 2 of different diameters can be flexibly replaced, and the chamfering head 3 can be moved to meet the chamfering requirements of the corresponding hole diameter. This allows for the machining of holes of different diameters without changing the tool holder 1, improving the versatility and practicality of the tool.

[0057] In this embodiment, the tool holder 1 also includes a tool head mounting portion 12, which is integrally formed with the spindle connection portion 11. The tool head mounting portion 12 is used to fix the drilling tool head 2 and the chamfering tool head 3. Both the tool head mounting portion 12 and the spindle connection portion 11 are cylindrical structures, wherein the diameter of the tool head mounting portion 12 is larger than the diameter of the spindle connection portion 11. In this way, a stepped structure is formed at the connection between the tool head mounting portion 12 and the spindle connection portion 11, which facilitates positioning when the tool holder 1 is installed on the machine tool and ensures installation accuracy.

[0058] In this embodiment, the drilling head 2 and the chamfering head 3 are located on the same side of the head mounting part 12, so that the drilling head 2 and the chamfering head 3 are close to each other, which makes it easier to determine the positional relationship between the drilling head 2 and the chamfering head 3, facilitates the adjustment of the chamfering head 3, and also ensures the accuracy of the chamfer size.

[0059] In this embodiment, both the drilling head 2 and the chamfering head 3 are mounted on the head mounting part 12 to achieve a compact structure, reduce the overall size of the handle 1, and facilitate tool management.

[0060] In this embodiment, both the drilling head 2 and the chamfering head 3 are located at the end of the head mounting portion 12 away from the spindle connection portion 11. Specifically, the axis of the drilling head 2 coincides with the axis of the tool holder 1, and a portion of the drilling head 2 extends outward from its end face by a certain length. The chamfering head 3 is mounted on the end face, located on one side of the drilling head 2, and can move in a direction close to or away from the drilling head 2.

[0061] During machining, select appropriate drilling head 2 and chamfering head 3 according to the size of the hole to be machined. First, install drilling head 2 on tool holder 1, and then install chamfering head 3. By moving chamfering head 3, it is brought into contact with the peripheral wall of drilling head 2. In this way, during the drilling process, chamfering head 3 simultaneously chamfers the hole.

[0062] In this embodiment, specifically, the drill bit mounting part 12 is provided with a mounting hole 13 for inserting a portion of the drill bit 2. A first fastener 14 is provided on the drill bit mounting part 12 to fix the drill bit 2 within the mounting hole 13. By providing the mounting hole 13 and the first fastener 14, the installation and removal of the drill bit 2 are facilitated, simplifying the installation process and improving convenience.

[0063] In this embodiment, the mounting hole 13 penetrates the end of the tool head mounting part 12 and extends inward by a certain length. The axis of the mounting hole 13 coincides with the axis of the tool head mounting part 12 and the axis of the spindle connection part 11. In this way, when the drilling tool head 2 is installed, it is ensured that the moving direction of the drilling tool head 2 is consistent with the feed direction of the machine tool spindle, thus ensuring the accuracy of drilling.

[0064] In this embodiment, the mounting hole 13 and the first fastener 14 can be used to clamp drilling heads 2 of different diameters. This design allows the tool holder 1 to meet the drilling needs of various hole diameters. When facing different processing tasks, it is not necessary to replace the entire tool holder 1, but only to replace the drilling head 2 of the corresponding diameter, which greatly improves the flexibility and efficiency of processing.

[0065] In this embodiment, the first fastener 14 can be fixed by end face fixing, side fastening connection, spring sleeve connection, etc. In this embodiment, side fastening connection is used as an example for explanation:

[0066] The side-fixing connection means that the drilling head 2 is pressed and fixed on the side of the tool holder 1 by the first fastener 14. The first fastener 14 passes through the peripheral wall of the tool head mounting part 12, so that the end of the first fastener 14 abuts against the peripheral wall of the drilling head 2, thereby pressing and fixing the drilling head 2.

[0067] In this embodiment, a first hole 15 is provided on the peripheral wall of the drill bit mounting part 12. The axis of the first hole 15 is perpendicular to the axis of the mounting hole 13, and the first fastener 14 is threadedly connected to the first hole 15. During installation, the drill bit 2 is inserted into the mounting hole 13, and the end of the drill bit 2 is tightly fitted with the bottom of the mounting hole 13. The first fastener 14 is tightened until the end of the first fastener 14 abuts against the peripheral wall of the drill bit 2, thereby pressing and fixing the drill bit 2.

[0068] In this embodiment, multiple first holes 15 can be provided along the axial direction of the tool holder 1 to improve the fastening effect of the drilling head 2 and avoid loosening due to vibration during the processing.

[0069] In this embodiment, the first fastener 14 can be a bolt, screw, stud, threaded handle, etc. The threaded connection improves connection strength and ensures that the drill bit 2 remains stable and does not move during machining, guaranteeing machining accuracy and stability.

[0070] In this embodiment, the chamfering cutter head 3 is further slidably mounted on the cutter head mounting part 12 to be close to or away from the drilling cutter head 2, and the chamfering cutter head 3 is fixed by the second fastener 32. The position of the chamfering cutter head 3 is adjusted by sliding according to the diameter of the hole to be processed, to a suitable processing position, and then fixed by the second fastener 32 to achieve chamfering.

[0071] Specifically, the end of the cutter head mounting part 12 is provided with a first limiting part 16, which is arranged radially along the cutter shank 1, and the chamfering cutter head 3 is provided with a second limiting part 31. The first limiting part 16 and the second limiting part 31 are slidably connected to realize the movement setting of the chamfering cutter head 3.

[0072] In this embodiment, the second limiting part 31 slides on the first limiting part 16 in a direction perpendicular to the axis of the drilling head 2. During installation, both the chamfering head 3 and the drilling head 2 are installed along the axial extension direction of the tool holder 1. When the chamfering head 3 slides along the first limiting part 16, the side of the chamfering head 3 closest to the drilling head 2 can fit tightly against the peripheral wall of the drilling head 2, and the cutting edge of the chamfering head 3 is located on the side of the chamfering head 3 away from the drilling head 2, thereby realizing that while the drilling head 2 is drilling, the chamfering head 3 performs chamfering processing on the edge of the drilled hole.

[0073] In this embodiment, the chamfering cutter head 3 is fixed to the first limiting part 16 by the second fastener 32, and the end of the second fastener 32 abuts against the surface of the first limiting part 16.

[0074] In this embodiment, the first limiting part 16 is a slide rail or a groove, and the second limiting part 31 is a groove or a slide rail. In this embodiment, the first limiting part 16 is a T-shaped slide rail, and the second limiting part 31 is a T-shaped groove.

[0075] The chamfering head 3 is modularly connected via a T-shaped slide rail on the tool holder 1 and a T-shaped groove on the chamfering head 3. This connection method allows the chamfering head 3 to move flexibly along the T-shaped slide rail according to the size of the hole being machined, precisely adjusting its position to ensure that it can perform chamfering on holes of different diameters after drilling, thus achieving integrated drilling and chamfering functions.

[0076] In this embodiment, the chamfering head 3 has a second hole 33, and the second fastener 32 is threadedly connected to the second hole 33. The axis of the second hole 33 is perpendicular to the sliding direction of the chamfering head 3. When installing the chamfering head 3, the second fastener 32 is loosened so that the chamfering head 3 can slide along the first limiting part 16. After adjusting to a suitable position, the chamfering head 3 is fixed by tightening the second fastener 32.

[0077] In this embodiment, the second fastener 32 can be a bolt, screw, stud, etc. The threaded connection improves the connection strength. This ensures that the chamfering cutter head 3 remains stable and does not move during processing, guaranteeing processing accuracy and stability.

[0078] In this embodiment, the second fastener 32 adopts a hidden structure, that is, when the chamfering head 3 is in a fixed state, the second fastener 32 is completely located in the second hole 33, so as to avoid the processing being affected by the second fastener 32 protruding from the surface of the chamfering head 3.

[0079] The working principle of this utility model's drilling and chamfering composite machining tool is as follows: Before machining, a drilling head 2 is selected according to the diameter of the hole to be machined. The selected drilling head is inserted into the mounting hole 13, and the first fastener 14 is adjusted to ensure that the drilling head 2 is firmly fixed on the tool holder 1, preventing loosening during subsequent machining and affecting the drilling accuracy. The second fastener 32 of the chamfering head 3 is loosened, and the chamfering head 3 is precisely moved along the first limiting part 16 according to the diameter of the current machining hole, so that the chamfering head 3 fits tightly against the outer wall of the drilling head 2 and is adjusted to a suitable machining position. Then, the second fastener 32 is tightened again to fix the chamfering head 3, and the integrated drilling and chamfering machining operation can begin. By moving the chamfering head 3, the chamfering requirements of different hole diameters can be met. It is possible to machine holes of different diameters without changing the tool holder 1, improving the versatility and practicality of the tool.

[0080] This utility model's combined drilling and chamfering tool changes the traditional separate drilling and chamfering process, integrating the two steps into a single process. This avoids time losses and accuracy errors caused by process switching, significantly improving drilling efficiency. Simultaneously, the integrated machining reduces the impact of multiple clamping operations on machining accuracy, ensuring machining quality.

[0081] The tool holder 1 of this utility model can clamp drilling heads 2 of different diameters, and together with the adjustable chamfering head 3, the position can be adjusted according to the different diameters of the holes to be processed, so as to realize the integrated drilling and chamfering processing of different hole diameters. There is no need to frequently change the cutting head and tool holder 1 due to changes in hole diameter, and it can flexibly meet diverse processing needs.

[0082] The tool holder 1 of this invention does not require individual customization for each bore diameter, reducing the types and quantities of cutting tools and lowering tool procurement costs. Furthermore, avoiding frequent replacements of the cutting head and tool holder 1 reduces equipment downtime, improves equipment utilization, and further reduces processing costs.

[0083] In this invention, when encountering hole machining tasks without chamfering requirements, the chamfering cutter head 3 can be easily disassembled, allowing the tool holder 1 to still be used normally for drilling operations, thus enhancing the versatility of the tool holder 1 and expanding its application range in different machining scenarios.

[0084] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A drilling and chamfering composite machining tool, characterized in that: include The tool holder (1) has a spindle connection part (11) at one end for connecting with the machine tool spindle; Drill bit (2), used for drilling; A chamfering cutter (3) is used to chamfer the drilled hole, and the cutting edge of the chamfering cutter (3) is located on the side of the chamfering cutter (3) away from the drilled hole cutter (2); The drilling head (2) is detachably mounted on the tool holder (1); The chamfering cutter head (3) is movably mounted on the shank (1) to adjust the distance between it and the drilling cutter head (2).

2. The drilling and chamfering composite machining tool according to claim 1, characterized in that: The handle (1) has a cutting head mounting part (12) for fixing the drilling cutting head (2) and the chamfering cutting head (3); The drilling head (2) and the chamfering head (3) are located on the same side of the head mounting part (12).

3. The drilling and chamfering composite machining tool according to claim 2, characterized in that: The chamfering cutter head (3) is installed at one end of the cutter head mounting part (12) away from the spindle connection part (11); The chamfering cutter (3) is slidably disposed on the cutter mounting part (12) to be close to or away from the drilling cutter (2).

4. The drilling and chamfering composite machining tool according to any one of claims 2-3, characterized in that: The end of the blade mounting part (12) is provided with a first limiting part (16); The chamfering cutter head (3) is provided with a second limiting part (31); The second limiting part (31) slides on the first limiting part (16) in a direction perpendicular to the axis of the drilling head (2).

5. The drilling and chamfering composite machining tool according to claim 4, characterized in that: The chamfering cutter head (3) is fixed to the first limiting part (16) by the second fastener (32); The end of the second fastener (32) abuts against the surface of the first limiting part (16).

6. The drilling and chamfering composite machining tool according to claim 5, characterized in that: The chamfering cutter head (3) has a second hole (33); The second fastener (32) is threaded into the second hole (33); The axis of the second hole (33) is perpendicular to the sliding direction of the chamfering cutter head (3).

7. The drilling and chamfering composite machining tool according to any one of claims 2-3, characterized in that: The cutting head mounting part (12) is provided with a mounting hole (13) for the drilling cutting head (2) to be partially inserted; The mounting hole (13) passes through the end of the cutter head mounting part (12) and extends inward for a certain length; The axis of the mounting hole (13) coincides with the axis of the cutter head mounting part (12) and the axis of the spindle connection part (11).

8. The drilling and chamfering composite machining tool according to claim 7, characterized in that: The peripheral wall of the cutting head mounting part (12) is provided with a first fastener (14) for fixing the drilling cutting head (2); The end of the first fastener (14) abuts against the peripheral wall of the drill bit (2).

9. The drilling and chamfering composite machining tool according to claim 8, characterized in that: A first hole (15) is provided on the peripheral wall of the blade mounting part (12); The first fastener (14) is threadedly connected to the first hole (15); The axis of the first hole (15) is perpendicular to the axis of the mounting hole (13).

10. The drilling and chamfering composite machining tool according to any one of claims 2-3, characterized in that: Both the cutter head mounting part (12) and the spindle connecting part (11) are cylindrical structures; The diameter of the cutter head mounting part (12) is larger than the diameter of the spindle connecting part (11).

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