Machine tool matching drill bit for stepped hole machining

By designing a machine tool for step hole processing, the drill bit is matched with the drill bit, and the combination of the tool rod and multiple blades is used to realize the partial replacement of the blade, solving the problem of the drill bit being replaced in the prior art after wear, reducing production costs.

CN222608107UActive Publication Date: 2025-03-14SUZHOU HAOHENGLI CNC TOOLS CO LTD
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Patent Information

Application Number
CN202420922086.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2025-03-14
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

In the prior art, the drill bit needs to be replaced after wear, resulting in increased production costs and is not economical.

Method used

A machine tool matching drill bit for step hole processing is designed, including a tool rod part, a chamfering knife, a drilling knife and a step knife. The connection rod is disassembled and replaced to achieve partial replacement of the blade.

Benefits of technology

By partially replacing the blade, the replacement of the entire drill bit is avoided, the replacement cost is reduced, and the convenience during processing is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of industrial cutters, and discloses a stepped hole machining machine tool matching drill bit which comprises a connector and further comprises a cutter bar part, a chamfering cutter is arranged at the top of the cutter bar part, a drilling cutter is arranged at the bottom of the cutter bar part, the cutter bar part has rotational freedom, the cutter bar part is in a spiral shape, and the connector is connected with the cutter bar part. The top end of the cutter bar part is fixedly connected with a step bar, a step cutter is arranged in an inner cavity of the step bar, the top of the cutter bar part is in threaded connection with a first connecting rod, the cutter bar part is in threaded connection with a chamfering cutter through the first connecting rod, and the bottom end of the cutter bar part is in threaded connection with a third connecting rod. The cutter bar part is in threaded connection with the drilling cutter through a third connecting rod, and an inner cavity of the step rod is in threaded connection with a second connecting rod. The step cutter is replaced, so that local replacement of the chamfering cutter, the drilling cutter and the step cutter is realized, overall replacement of the cutter bar part is avoided, the replacement cost is reduced, and waste is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of industrial cutting tools, and more specifically, to a machine tool matching drill bit for machining step holes. Background Art

[0002] When processing workpieces in factories, there are processes such as drilling base holes, step holes, and chamfering. In the process of processing, different drill bits are used for processing. However, in the existing technology, an integral drill bit is generally used, and the blade will wear during use. However, the blade will be damaged after wear, which leads to the need to replace the entire drill bit, which in turn leads to increased production costs and is not economical. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a machine tool matching drill bit for machining stepped holes, which has the advantage of saving use costs.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a matching drill bit for a machine tool for machining stepped holes, including a connector and further comprising:

[0005] The tool rod portion, the top of the tool rod portion is provided with a chamfering knife, the bottom of the tool rod portion is provided with a drilling knife, the tool rod portion has a degree of freedom of rotation, the tool rod portion is spirally shaped, the top of the tool rod portion is fixedly connected to a step rod, the inner cavity of the step rod is provided with a step knife, the top of the tool rod portion is threadedly connected to a connecting rod one, the tool rod portion is threadedly connected to the chamfering knife through the connecting rod one, the bottom end of the tool rod portion is threadedly connected to a connecting rod three, the tool rod portion is threadedly connected to the drilling knife through the connecting rod three, the inner cavity of the step rod is threadedly connected to the connecting rod two, the step rod is threadedly connected to the step knife through the connecting rod two, the connecting rod one, the connecting rod two, and the connecting rod three all have a degree of freedom of rotation, and the chamfering knife, step knife and drilling knife can be disassembled through the connecting rod one, the connecting rod two, and the connecting rod three respectively;

[0006] The beneficial effect of adopting the above technical solution is: processing is carried out by using a chamfering knife, a drilling knife and a step knife, and during long-term use, connecting rod one is unscrewed from the inner cavity of the chamfering knife to replace the chamfering knife, or connecting rod three is unscrewed from the inner cavity of the drilling knife to replace the drilling knife, or connecting rod two is unscrewed from the inner cavity of the step knife to replace the step knife, thereby realizing partial replacement of the chamfering knife, drilling knife and step knife, avoiding replacement of the entire tool rod part, reducing replacement costs and avoiding waste.

[0007] As a further improvement of the present invention, the bottom end of the tool rod portion begins to have a mounting groove, the drilling tool is located in the inner cavity of the mounting groove, the bottom end of the step rod is provided with a groove portion, and the step tool is located in the inner cavity of the groove portion;

[0008] The beneficial effect of adopting the above technical solution is: through the setting of the chamfering tool, the drilling tool and the step tool, the chamfering tool can be used for chamfering, and then the drilling tool can be used for drilling, and the step hole can be processed by the step tool, thereby realizing multifunctional processing by the chamfering tool, the drilling tool and the step tool, so that there is no need to replace different drill bits, which improves the convenience during processing.

[0009] As a further improvement of the present invention, a cutting groove is provided in the middle of the shank portion, and the cutting groove is curved;

[0010] The beneficial effects of adopting the above technical solution are: the cutting groove in the middle of the shank portion can guide the chips, and the cutting groove is curved, so that the cutting groove can smoothly guide the chips out.

[0011] As a further improvement of the present invention, a heat dissipation groove is provided on the outer side of the shank portion, and there are a plurality of heat dissipation grooves;

[0012] The beneficial effect of adopting the above technical solution is: the heat dissipation groove on the outside of the tool rod can dissipate the heat generated by the tool rod during the processing, thereby avoiding the accumulation of heat inside the tool rod, causing the temperature of the tool rod to rise, which is inconvenient for subsequent processing.

[0013] As a further improvement of the present invention, the bottom end of the connector is fixedly connected to a conical portion, and the step rod is fixedly installed at the bottom end of the conical portion;

[0014] The beneficial effect of adopting the above technical solution is that, by setting the conical portion, the conical shape of the conical portion makes it more comfortable for the staff to hold.

[0015] As a further improvement of the present invention, the connector and the conical portion are directly connected by a connecting groove, and the connector is a cylinder;

[0016] The beneficial effect of adopting the above technical solution is that through the setting of the connecting groove, the connecting head can be clamped or connected by the connecting part of the machine tool, thereby enabling the machine tool to use chamfering cutters, drilling cutters, and step cutters for processing.

[0017] As a further improvement of the present invention, the middle parts of the chamfering cutter, drilling cutter and step cutter are all provided with threaded holes;

[0018] The beneficial effect of adopting the above technical solution is: through the threaded holes in the middle of the chamfering tool, drilling tool and step tool, the chamfering tool, drilling tool and step tool can be fixed in the specified position, and the chamfering tool, drilling tool and step tool can be replaced.

[0019] As a further improvement of the present invention, the heat dissipation groove is a rectangular groove, and the heat dissipation groove is curved;

[0020] The beneficial effect of adopting the above technical solution is: by making the heat dissipation groove a rectangular groove and making the heat dissipation groove a curved shape, the heat dissipation groove can quickly dissipate the heat inside the shank part, thereby quickly reducing the heat of the shank part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the step rod connection structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection of the step knife structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the connection of the conical part of the structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the connection of the chamfering cutter structure of the utility model.

[0026] In the figure: 1. Connector; 2. Conical part; 3. Step rod; 4. Tool bar part; 5. Cutting groove; 6. Chamfering knife; 7. Connecting rod 1; 8. Drilling knife; 9. Step knife; 10. Groove part; 11. Heat dissipation groove; 12. Connecting rod 2; 13. Connecting rod 3; 14. Connecting groove; 15. Mounting groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 5 As shown, the utility model provides a machine tool matching drill bit for step hole processing, including a connecting head 1 and also including:

[0029] The shank portion 4 is provided with a chamfering knife 6 at the top of the shank portion 4, and a drilling knife 8 is provided at the bottom of the shank portion 4. The shank portion 4 has a degree of freedom of rotation. The shank portion 4 is spiral. The top of the shank portion 4 is fixedly connected with a step rod 3. A step knife 9 is provided in the inner cavity of the step rod 3. The top of the shank portion 4 is threadedly connected with a connecting rod 1 7. The shank portion 4 is threadedly connected to the chamfering knife 6 through the connecting rod 1 7. The bottom end of the shank portion 4 is threadedly connected with a connecting rod 3 13. The shank portion 4 is threadedly connected to the drilling knife 8 through the connecting rod 3 13. The inner cavity of the step rod 3 is threadedly connected with a connecting rod 2 12. The step rod 3 is threadedly connected to the step knife 9 through the connecting rod 2 12. The connecting rod 1 7, the connecting rod 2 12, and the connecting rod 3 13 all have a degree of freedom of rotation. The chamfering knife 6, the step knife 9, and the drilling knife 8 can be disassembled through the connecting rod 1 7, the connecting rod 2 12, and the connecting rod 3 13 respectively.

[0030] The beneficial effect of adopting the above technical solution is: processing is performed by the chamfering knife 6, the drilling knife 8, and the step knife 9, and during long-term use, the connecting rod 1 7 is unscrewed from the inner cavity of the chamfering knife 6 to replace the chamfering knife 6, or the connecting rod 3 13 is unscrewed from the inner cavity of the drilling knife 8 to replace the drilling knife 8, or the connecting rod 2 12 is unscrewed from the inner cavity of the step knife 9 to replace the step knife 9, thereby realizing partial replacement of the chamfering knife 6, the drilling knife 8, and the step knife 9, avoiding replacement of the entire tool rod part 4, reducing replacement costs, and avoiding waste.

[0031] In one embodiment of the present invention, a mounting groove 15 is formed at the bottom end of the shank portion 4, the drilling tool 8 is located in the inner cavity of the mounting groove 15, a groove portion 10 is formed at the bottom end of the step rod 3, and the step tool 9 is located in the inner cavity of the groove portion 10;

[0032] The beneficial effect of adopting the above technical solution is: through the setting of the chamfering tool 6, the drilling tool 8, and the step tool 9, chamfering processing can be performed by the chamfering tool 6, and then drilling processing can be performed by the drilling tool 8, and step holes can be processed by the step tool 9, thereby realizing multifunctional processing by the chamfering tool 6, the drilling tool 8, and the step tool 9, so that there is no need to replace different drill bits, which improves the convenience during processing.

[0033] In one embodiment of the present invention, a cutting groove 5 is provided in the middle of the shank portion 4, and the cutting groove 5 is curved;

[0034] The beneficial effects of adopting the above technical solution are: through the cutting groove 5 in the middle of the shank part 4, the cutting groove 5 can guide the debris, and the cutting groove 5 is curved, so that the cutting groove 5 can smoothly guide the debris out.

[0035] In one embodiment of the present invention, a heat dissipation groove 11 is provided on the outer side of the shank portion 4, and there are a plurality of heat dissipation grooves 11;

[0036] The beneficial effect of adopting the above technical solution is: through the heat dissipation groove 11 on the outside of the shank part 4, the heat generated by the shank part 4 during the processing can be dissipated through the heat dissipation groove 11, thereby avoiding the accumulation of heat inside the shank part 4, causing the temperature of the shank part 4 to rise, which is inconvenient for subsequent processing.

[0037] In one embodiment of the present invention, the bottom end of the connector 1 is fixedly connected to the conical portion 2, and the step rod 3 is fixedly installed at the bottom end of the conical portion 2;

[0038] The beneficial effect of adopting the above technical solution is that, by setting the conical portion 2, the conical shape of the conical portion 2 makes it more comfortable for the staff to hold.

[0039] In one embodiment of the present invention, the connector 1 and the conical portion 2 are directly connected with a connecting groove 14, and the connector 1 is a cylinder;

[0040] The beneficial effect of adopting the above technical solution is: through the setting of the connecting groove 14, the connecting head 1 can be clamped or connected by the connecting part of the machine tool, so that the machine tool can use the chamfering tool 6, the drilling tool 8, and the step tool 9 for processing.

[0041] In one embodiment of the present invention, the chamfering cutter 6, the drilling cutter 8, and the step cutter 9 are all provided with threaded holes in their middle parts;

[0042] The beneficial effect of adopting the above technical solution is: through the threaded holes in the middle of the chamfering tool 6, drilling tool 8, and step tool 9, the chamfering tool 6, drilling tool 8, and step tool 9 can be fixed in the specified position, and the chamfering tool 6, drilling tool 8, and step tool 9 can be replaced.

[0043] In one embodiment of the present invention, the heat dissipation slot 11 is a rectangular slot, and the heat dissipation slot 11 is curved;

[0044] The beneficial effect of adopting the above technical solution is: by making the heat dissipation groove 11 a rectangular groove and making the heat dissipation groove 11 curved, the heat dissipation groove 11 can quickly dissipate the heat inside the shank part 4, thereby quickly reducing the heat of the shank part 4.

[0045] The working principle and usage process of the present invention are as follows: connect the connecting head 1 to the machine tool, then drill a hole through the drilling tool 8, and process the step hole through the step tool 9, and then chamfer through the chamfering tool 6, and guide the generated debris to the outside through the cutting groove 5, and when in use, dissipate heat through the heat dissipation groove 11. When the chamfering tool 6, the drilling tool 8, and the step tool 9 are damaged during long-term use, the connecting rod 1 7 can be unscrewed from the inner cavity of the chamfering tool 6, and then the connecting rod 3 13 can be unscrewed from the inner cavity of the drilling tool 8, and the connecting rod 2 12 can be unscrewed from the inner cavity of the step tool 9, so as to replace the chamfering tool 6, the drilling tool 8, and the step tool 9.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The machine tool matching drill bit for step hole processing is characterized by: Including connector, also includes: A tool rod portion, a chamfering knife is arranged on the top of the tool rod portion, a drilling knife is arranged on the bottom of the tool rod portion, the tool rod portion has rotational freedom, the tool rod portion is spiral, the top end of the tool rod portion is fixedly connected with a step rod, the inner cavity of the step rod is provided with a step knife, the top of the tool rod portion is threadedly connected with a connecting rod 1, the tool rod portion is threadedly connected to the chamfering knife through the connecting rod 1, the bottom end of the tool rod portion is threadedly connected with a connecting rod 3, the tool rod portion is threadedly connected to the drilling knife through the connecting rod 3, the inner cavity of the step rod is threadedly connected with a connecting rod 2, the step rod is threadedly connected with the step knife through the connecting rod 2, the connecting rod 1, the connecting rod 2, and the connecting rod 3 all have rotational freedom, and the chamfering knife, step knife and drilling knife can be disassembled through the connecting rod 1, the connecting rod 2, and the connecting rod 3 respectively.

2. The machine tool matching drill bit for step hole processing according to claim 1, characterized in that: The bottom end of the tool rod portion begins to have a mounting groove, the drilling tool is located in the inner cavity of the mounting groove, the bottom end of the step rod is provided with a groove portion, and the step tool is located in the inner cavity of the groove portion.

3. The machine tool matching drill bit for step hole processing according to claim 1, characterized in that: A cutting groove is provided in the middle of the shank portion, and the cutting groove is curved.

4. The machine tool matching drill bit for step hole processing according to claim 1, characterized in that: A heat dissipation groove is provided on the outer side of the knife bar portion, and there are a plurality of heat dissipation grooves.

5. The machine tool matching drill bit for step hole processing according to claim 1, characterized in that: The bottom end of the connector is fixedly connected with a cone portion, and the step rod is fixedly installed at the bottom end of the cone portion.

6. The machine tool matching drill bit for step hole processing according to claim 5, characterized in that: The connecting head and the conical part are directly connected with a connecting groove, and the connecting head is a cylinder.

7. The machine tool matching drill bit for step hole processing according to claim 2, characterized in that: The middle parts of the chamfering cutter, the drilling cutter and the step cutter are all provided with threaded holes.

8. The machine tool matching drill bit for step hole processing according to claim 4, characterized in that: The heat dissipation groove is a rectangular groove, and the heat dissipation groove is curved.