Novel circulating type internal cooling alloy drill bit tool

By designing a circulating internal cooling system in the alloy drill bit, the cooling chamber, cooling pipe and pump body drive the circulating flow of coolant, the problem of overheating of the drill bit is solved, the service life is extended, the processing accuracy is improved, and the cooling liquid consumption is reduced.

CN222856803UActive Publication Date: 2025-05-13JIANGSU JUEKE CNC TOOL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421433643.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-05-13
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

The heat generated by traditional alloy drill bits during high-speed rotation is difficult to effectively disperse, causing the drill bit to overheat, affecting service life and processing quality.

Method used

A circulating internal cooling alloy drill bit tool is designed, including a cooling chamber, a cooling pipe, a liquid outlet pipe and a liquid inlet pipe. The cooling liquid is driven by the pump body to circulate between these pipes and chambers to achieve internal cooling.

Benefits of technology

Effectively cool the drill bit, preventing material performance decline and wear caused by overheating, extending the service life of the drill bit, improving processing accuracy, reducing the consumption of coolant, and having good economic and environmental benefits.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222856803U_ABST
    Figure CN222856803U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel circulating type internal cooling alloy drill bit tool which comprises a drill bit, and a connecting rod is arranged on the drill bit. A cooling cavity is formed in the drill bit, a liquid outlet pipeline is further arranged on the outer wall of the drill bit and communicated with an inner cavity of the cooling cavity, a cooling pipeline is arranged on the connecting rod, a liquid inlet pipeline is arranged on the outer wall of the connecting rod and communicated with an inner cavity of the cooling pipeline, and the cooling pipeline extends into the cooling cavity. The cooling device has the beneficial effects that through the matching of the cooling cavity and the cooling pipeline, a flowing path capable of circularly cooling can be conveniently formed in the drill bit, the drill bit can be conveniently cooled, and the reduction of material performance and abrasion caused by overheating of the drill bit are effectively prevented through cooling.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to a novel circulating internally cooling alloy drill cutter. Background Art

[0002] In the field of mechanical processing, drill bits are one of the commonly used cutting tools and are widely used in drilling operations of various materials. Traditional alloy drill bits will generate a lot of heat due to friction and cutting during high-speed rotation. If this heat cannot be dissipated in a timely and effective manner, the drill bit will overheat and cause the material to soften, deform or even break, seriously affecting its service life and processing quality.

[0003] In the prior art, the drill bit is usually cooled by spraying an external coolant. However, it is difficult to accurately spray the coolant onto the cutting edge and drilling position of the drill bit, and the cooling effect is poor. The heat generated by the drill bit cannot be effectively removed. In view of this, the utility model proposes a new type of circulating internally cooled alloy drill tool to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a novel circulating internally-cooled alloy drill tool to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel circulating internally-cooled alloy drill tool comprises a drill bit (10), wherein a connecting rod (40) is provided on the drill bit (10);

[0007] A cooling cavity (11) is provided in the drill bit (10), and a liquid outlet pipe (20) is also provided on the outer wall of the drill bit (10), and the liquid outlet pipe (20) is communicated with the inner cavity of the cooling cavity (11). A cooling pipe (42) is provided on the connecting rod (40), and a liquid inlet pipe (30) is provided on the outer wall of the connecting rod (40), and the liquid inlet pipe (30) is communicated with the inner cavity of the cooling pipe (42). The cooling pipe (42) extends into the cooling cavity (11), so that the coolant can pass through the liquid inlet pipe (30), the cooling pipe (42), the cooling cavity (11) and the liquid outlet pipe (20) in sequence to complete the cooling process.

[0008] As an improvement of the above technical solution, a liquid outlet sleeve (21) is provided on the liquid outlet pipeline (20), and the liquid outlet sleeve (21) is rotatably connected to the drill bit (10).

[0009] As an improvement of the above technical solution, a liquid inlet sleeve (31) is provided on the liquid inlet pipeline (30), and the liquid inlet sleeve (31) is rotatably connected to the connecting rod (40).

[0010] As an improvement of the above technical solution, the outer wall of the drill bit (10) is provided with a plurality of groups of liquid outlet holes (12), the liquid outlet holes (12) are in communication with the cooling cavity (11), and the positions of the liquid outlet holes (12) and the liquid outlet sleeve (21) match.

[0011] As an improvement of the above technical solution, the outer wall of the connecting rod (40) is provided with a plurality of groups of liquid inlet holes (41), the liquid inlet holes (41) are in communication with the liquid inlet pipeline (30), and the positions of the liquid inlet holes (41) and the liquid inlet sleeve (31) match each other.

[0012] As an improvement of the above technical solution, the drill bit (10) is provided with a connecting circular plate A (13), and the connecting rod (40) is provided with a connecting circular plate B (43), and the connecting circular plate A (13) and the connecting circular plate B (43) are matched in position and size;

[0013] The connecting circular plate A (13) and the connecting circular plate B (43) are connected by bolts.

[0014] As an improvement of the above technical solution, a positioning hole (14) is provided on the drill bit (10), and the positioning hole (14) is coaxially arranged with the drill bit (10);

[0015] A positioning rod (44) is provided on the connecting rod (40), the positioning rod (44) is coaxially arranged with the connecting rod (40), the positioning rod (44) is adapted to the positioning hole (14), and the positioning rod (44) extends into the positioning hole (14).

[0016] As an improvement to the above technical solution, the cross-sections of the positioning hole (14) and the positioning rod (44) are both polygonal.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the drill bit (10) needs to be cooled, the coolant is first stored in a container, and two sets of pump bodies are installed in the container. The two sets of pump bodies are respectively connected to the liquid outlet pipe (20) and the liquid inlet pipe (30) through pipelines, and the coolant is driven to flow through the two sets of pump bodies;

[0019] Of course, during the cooling process, the coolant is introduced from the storage container into the liquid inlet pipe (30) through the pump body, and then introduced into the cooling pipe (42) through the liquid inlet pipe (30), and then enters the cooling chamber (11) through the cooling pipe (42). At the same time, the coolant is sucked out of the cooling chamber (11) through the pump body connected to the liquid outlet pipe (20) and enters the container storing the coolant again, forming a cyclic cooling process;

[0020] By cooperating between the cooling chamber (11) and the cooling pipe (42) as described above, a flow path for circulating cooling can be formed inside the drill bit (10), thereby facilitating cooling of the drill bit (10). Effective cooling prevents degradation of material properties and wear of the drill bit (10) due to overheating, thereby extending the service life of the drill bit (10). The internal cooling system can maintain the stability of the drill bit (10) during the processing, reduce thermal expansion caused by temperature changes, thereby improving processing accuracy. The internal circulation system enables the coolant to be reused repeatedly, reducing the consumption of the coolant, and having good economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 It is the front view of the utility model;

[0023] Figure 3 For this utility model Figure 2 Sectional view of AA in the middle;

[0024] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 5 This is a schematic diagram of the structure of the drill bit of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the connecting rod of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the liquid outlet pipeline of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the liquid inlet pipeline of the utility model.

[0029] In the figure: 10, drill bit; 11, cooling chamber; 12, liquid outlet; 13, connecting circular plate A; 14, positioning hole; 20, liquid outlet pipe; 21, liquid outlet sleeve; 30, liquid inlet pipe; 31, liquid inlet sleeve; 40, connecting rod; 41, liquid inlet hole; 42, cooling pipe; 43, connecting circular plate B; 44, positioning rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] like Figure 1-8 As shown, this embodiment provides a novel circulating internally-cooled alloy drill tool, comprising a drill bit (10), wherein a connecting rod (40) is provided on the drill bit (10);

[0033] A cooling cavity (11) is provided in the drill bit (10), and a liquid outlet pipe (20) is also provided on the outer wall of the drill bit (10), and the liquid outlet pipe (20) is communicated with the inner cavity of the cooling cavity (11). A cooling pipe (42) is provided on the connecting rod (40), and a liquid inlet pipe (30) is provided on the outer wall of the connecting rod (40), and the liquid inlet pipe (30) is communicated with the inner cavity of the cooling pipe (42). The cooling pipe (42) extends into the cooling cavity (11), so that the coolant can pass through the liquid inlet pipe (30), the cooling pipe (42), the cooling cavity (11) and the liquid outlet pipe (20) in sequence to complete the cooling process.

[0034] In the present case, the connecting rod (40) is used to connect to the clamp of the drill bit hand drill, so as to drive the drill bit (10) to rotate and perform the normal drilling process.

[0035] In this embodiment, when the drill bit (10) needs to be cooled, the coolant is first stored in a container, and two sets of pump bodies are installed in the container. The two sets of pump bodies are respectively connected to the liquid outlet pipe (20) and the liquid inlet pipe (30) through pipelines, and the coolant is driven to flow through the two sets of pump bodies.

[0036] Of course, during the cooling process, the coolant is introduced from the storage container into the liquid inlet pipe (30) through the pump body, and then introduced into the cooling pipe (42) through the liquid inlet pipe (30), and then enters the cooling chamber (11) through the cooling pipe (42). At the same time, the coolant is sucked out of the cooling chamber (11) through the pump body connected to the liquid outlet pipe (20) and enters the container storing the coolant again, forming a cyclic cooling process;

[0037] By cooperating between the cooling chamber (11) and the cooling pipe (42) as described above, a flow path for circulating cooling can be formed inside the drill bit (10), thereby facilitating cooling of the drill bit (10). Effective cooling prevents degradation of material properties and wear of the drill bit (10) due to overheating, thereby extending the service life of the drill bit (10). The internal cooling system can maintain the stability of the drill bit (10) during the processing, reduce thermal expansion caused by temperature changes, thereby improving processing accuracy. The internal circulation system enables the coolant to be reused repeatedly, reducing the consumption of the coolant, and having good economic and environmental benefits.

[0038] Specifically, a liquid outlet sleeve (21) is provided on the liquid outlet pipeline (20), and the liquid outlet sleeve (21) is rotatably connected to the drill bit (10).

[0039] Specifically, a liquid inlet sleeve (31) is provided on the liquid inlet pipeline (30), and the liquid inlet sleeve (31) is rotatably connected to the connecting rod (40).

[0040] In the present case, the liquid outlet sleeve (21) and the drill bit (10) are connected in a rotary sealing manner, and the liquid inlet sleeve (31) and the connecting rod (40) are connected in a rotary sealing manner.

[0041] In this embodiment, during the rotation of the drill bit (10) and the connecting rod (40), the provided liquid outlet sleeve (21) and the liquid inlet sleeve (31) can prevent the corresponding liquid outlet pipe (20) and the liquid inlet pipe (30) from rotating, thereby facilitating the cyclic cooling process.

[0042] Specifically, a plurality of groups of liquid outlet holes (12) are provided on the outer wall of the drill bit (10), the liquid outlet holes (12) are in communication with the cooling cavity (11), and the positions of the liquid outlet holes (12) and the liquid outlet sleeve (21) match.

[0043] In this embodiment, the provided liquid outlet hole (12) can facilitate the introduction of cooling liquid from the cooling cavity (11) into the liquid outlet pipe (20).

[0044] Specifically, the outer wall of the connecting rod (40) is provided with a plurality of groups of liquid inlet holes (41), the liquid inlet holes (41) are in communication with the liquid inlet pipeline (30), and the positions of the liquid inlet holes (41) and the liquid inlet sleeve (31) match each other.

[0045] In this embodiment, the provided liquid inlet hole (41) can facilitate the coolant to enter the inner cavity of the cooling pipe (42).

[0046] Specifically, the drill bit (10) is provided with a connecting circular plate A (13), and the connecting rod (40) is provided with a connecting circular plate B (43), and the connecting circular plate A (13) and the connecting circular plate B (43) are matched in position and size;

[0047] The connecting circular plate A (13) and the connecting circular plate B (43) are connected by bolts.

[0048] In this embodiment, the bolt connection between the connecting circular plate A (13) and the connecting circular plate B (43) can facilitate disassembly between the connecting rod (40) and the drill bit (10), thereby facilitating subsequent maintenance.

[0049] Specifically, the drill bit (10) is provided with a positioning hole (14), and the positioning hole (14) is coaxially arranged with the drill bit (10);

[0050] A positioning rod (44) is provided on the connecting rod (40), the positioning rod (44) is coaxially arranged with the connecting rod (40), the positioning rod (44) is adapted to the positioning hole (14), and the positioning rod (44) extends into the positioning hole (14).

[0051] Specifically, the cross-sections of the positioning hole (14) and the positioning rod (44) are both polygonal.

[0052] In this embodiment, by providing the positioning hole (14) and the positioning rod (44) in a polygonal shape, it is possible to facilitate the connecting rod (40) to drive the drill bit (10) to rotate, thereby improving the stability of kinetic energy transmission between the connecting rod (40) and the drill bit (10).

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of circulating internal cooling alloy drill tool, characterized by: It comprises a drill bit (10), wherein a connecting rod (40) is provided on the drill bit (10); A cooling cavity (11) is provided in the drill bit (10), and a liquid outlet pipe (20) is also provided on the outer wall of the drill bit (10), and the liquid outlet pipe (20) is communicated with the inner cavity of the cooling cavity (11). A cooling pipe (42) is provided on the connecting rod (40), and a liquid inlet pipe (30) is provided on the outer wall of the connecting rod (40), and the liquid inlet pipe (30) is communicated with the inner cavity of the cooling pipe (42). The cooling pipe (42) extends into the cooling cavity (11), so that the coolant can pass through the liquid inlet pipe (30), the cooling pipe (42), the cooling cavity (11) and the liquid outlet pipe (20) in sequence to complete the cooling process.

2. A new type of circulating internal cooling alloy drill tool according to claim 1, characterized in that: A liquid outlet sleeve (21) is provided on the liquid outlet pipeline (20), and the liquid outlet sleeve (21) is rotatably connected to the drill bit (10).

3. A new type of circulating internal cooling alloy drill tool according to claim 1, characterized in that: The liquid inlet pipe (30) is provided with a liquid inlet sleeve (31), and the liquid inlet sleeve (31) is rotatably connected to the connecting rod (40).

4. A new type of circulating internal cooling alloy drill tool according to claim 2, characterized in that: The outer wall of the drill bit (10) is provided with a plurality of groups of liquid outlet holes (12), the liquid outlet holes (12) are in communication with the cooling cavity (11), and the positions of the liquid outlet holes (12) and the liquid outlet sleeve (21) match each other.

5. A new type of circulating internal cooling alloy drill tool according to claim 3, characterized in that: The outer wall of the connecting rod (40) is provided with a plurality of groups of liquid inlet holes (41), the liquid inlet holes (41) are in communication with the liquid inlet pipeline (30), and the positions of the liquid inlet holes (41) and the liquid inlet sleeve (31) match each other.

6. A new type of circulating internal cooling alloy drill tool according to claim 1, characterized in that: The drill bit (10) is provided with a connecting circular plate A (13), and the connecting rod (40) is provided with a connecting circular plate B (43), and the connecting circular plate A (13) and the connecting circular plate B (43) are matched in position and size; The connecting circular plate A (13) and the connecting circular plate B (43) are connected by bolts.

7. The new type of circulating internal cooling alloy drill tool according to claim 1 is characterized by: The drill bit (10) is provided with a positioning hole (14), and the positioning hole (14) is coaxially arranged with the drill bit (10); A positioning rod (44) is provided on the connecting rod (40), the positioning rod (44) is coaxially arranged with the connecting rod (40), the positioning rod (44) is adapted to the positioning hole (14), and the positioning rod (44) extends into the positioning hole (14).

8. A new type of circulating internal cooling alloy drill tool according to claim 7, characterized in that: The cross sections of the positioning hole (14) and the positioning rod (44) are both polygonal.