Internal cooling multifunctional inner hole machine clamping cutter bar

Abstract

The utility model discloses an internal cooling multifunctional inner hole machine clamping cutter bar, which relates to the technical field of cutter bars, and comprises a cutter bar main body, a mounting groove and a grooving blade, the inner side of the end part of the cutter bar main body is provided with the mounting groove, and the grooving blade is inserted in the mounting groove. According to the internal-cooling multifunctional inner hole machine clamping cutter bar, firstly, a grooving blade can be inserted into a mounting groove, then two sets of rubber protective sleeves are connected to the bottom ends of two sets of first inner hexagon screws in a sleeving mode, and at the moment, the two sets of first inner hexagon screws can be inserted into the cutter bar body; the two sets of first inner hexagon screws can be screwed through a locking tool, the chamfering blade and the grooving blade can be internally cooled and protected through the cooling channel, cooling is uniform, the machining life of the chamfering blade and the grooving blade is prolonged, meanwhile, the chamfering blade can be replaced with a reverse boring blade with the matched size, and the machining efficiency is improved. Therefore, the cutter bar main body can perform multifunctional processing operations including but not limited to boring, grooving, inner and outer chamfering and the like.

Description

Technical Field

[0001] This utility model relates to the field of tool holder technology, specifically to an internally cooled multifunctional internal hole clamping tool holder. Background Technology

[0002] An internal hole machine tool holder is a tool used to clamp and fix cutting inserts. It is suitable for internal turning on machine tools and is an essential tool for connecting the machine tool and the cutting tool. The cutting insert is mounted at its end and can be installed on the lathe tool post for internal turning. However, existing tool holders still have certain defects in use.

[0003] Common standard internal hole cutting tool holders on the market usually do not have internal cooling function. Using common tool holders for internal hole grooving will result in uneven cooling, or even the coolant may not be able to protect and cool the cutting tool. High-frequency processing will cause the cutting tool to be annealed at high temperature, which will reduce the tool life and prevent the tool from reaching the theoretical processing life, thus increasing the manufacturing cost for enterprises. Utility Model Content

[0004] The purpose of this invention is to provide a multi-functional internal cooling internal hole machine tool holder to solve the problem mentioned in the background art that tool holders on the market generally do not have internal cooling function.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional internal hole clamping tool holder with internal cooling, comprising: a tool holder body, a mounting groove, and a grooving blade. The mounting groove is provided on the inner side of the end of the tool holder body, and the grooving blade is inserted into the mounting groove. A first internal hexagon screw is threadedly connected to the top of the tool holder body near the grooving blade. A chamfering blade is inserted into the tool holder body near the grooving blade. A second internal hexagon screw is threadedly connected to the top of the tool holder body near the chamfering blade. A cooling channel is provided inside the tool holder body near the grooving blade and the chamfering blade.

[0006] Preferably, the bottom of both the first and second hexagonal socket screws is fitted with a rubber protective sleeve.

[0007] Preferably, the end of the cutter bar body away from the cutting blade is threadedly connected to a threaded joint, and the threaded joint has a through hole inside.

[0008] Preferably, the through hole is interconnected with the cooling channel.

[0009] Preferably, there is a gap between the first and second socket head cap screws and the inner wall of the tool holder body, and there is also a gap between the top of the grooving blade and the top of the chamfering blade and the inner top of the tool holder body.

[0010] Preferably, two sets of the first and second hexagonal socket screws are provided inside the tool holder body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This internally cooled multi-functional internal hole clamping tool holder allows the grooving blade to be inserted into the mounting slot first, and then two sets of rubber protective sleeves to be fitted onto the bottom ends of two sets of first hexagon socket screws. At this point, the two sets of first hexagon socket screws can be inserted into the tool holder body, allowing them to be tightened using a locking tool. When the two sets of first hexagon socket screws are tightened, their bottom ends and the rubber protective sleeves can compress and fix the grooving blade. When installing the chamfering blade, the end of the chamfering blade closest to the inside of the tool holder body does not contact the inner wall of the tool holder body. After both the grooving blade and the chamfering blade are installed, the threaded connector can be threaded onto the end of the tool holder body furthest from the grooving blade, thus installing the threaded connector at the end of the tool holder body. Further details are needed. When the grooving and chamfering inserts are cooled, the coolant can enter the through hole through the lathe cooling pipe. The coolant in the through hole can enter the cooling channel, and the coolant can flow onto the chamfering and grooving inserts through the cooling channel. At this time, the coolant inside the cooling channel can cool the chamfering and grooving inserts. The coolant finally rushes out from the gaps on both sides of the second and first internal hexagon screws above the chamfering and grooving inserts. The cooling channel can provide internal cooling protection for the chamfering and grooving inserts, and the cooling is uniform, thereby extending the machining life of the chamfering and grooving inserts. At the same time, the chamfering inserts can be replaced with back boring inserts of matching size, so that the tool holder body can perform multi-functional machining operations including but not limited to boring, grooving, and internal and external chamfering. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a top view of the structure of this utility model;

[0014] Figure 3 This is a top view sectional structural diagram of the main body of the tool holder of this utility model;

[0015] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the diagram.

[0016] In the diagram: 1. Tool holder body; 2. Mounting groove; 3. Grooving blade; 4. First hex socket screw; 5. Chamfering blade; 6. Second hex socket screw; 7. Cooling channel; 8. Rubber protective sleeve; 9. Threaded connector; 10. Through hole. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 It can be seen that this utility model provides a technical solution: a multi-functional internally cooled internal drilling machine tool holder, comprising: a tool holder body 1, a mounting groove 2, and a grooving blade 3. The mounting groove 2 is provided on the inner side of the end of the tool holder body 1, and the grooving blade 3 is inserted into the mounting groove 2. A first internal hexagon screw 4 is threadedly connected to the top of the tool holder body 1 near the top of the grooving blade 3. A chamfering blade 5 is inserted into the tool holder body 1 near the top of the chamfering blade 3. A second internal hexagon screw 6 is threadedly connected to the top of the tool holder body 1 near the top of the chamfering blade 5. A cooling channel 7 is provided inside the tool holder body 1 near the grooving blade 3 and the chamfering blade 5. Both the nail 4 and the second socket head cap screw 6 are fitted with rubber protective sleeves 8. The end of the tool holder body 1 away from the grooving blade 3 is threaded with a threaded connector 9. The threaded connector 9 has a through hole 10 that communicates with the cooling channel 7. There is a gap between the first socket head cap screw 4 and the second socket head cap screw 6 and the inner wall of the tool holder body 1. There is also a gap between the top of the grooving blade 3 and the top of the chamfering blade 5 and the top of the inside of the tool holder body 1. There are two sets of the first socket head cap screw 4 and the second socket head cap screw 6 inside the tool holder body 1. The first socket head cap screw 4 and the second socket head cap screw 6 are both made of stainless steel.

[0019] In practical implementation, the internal hole machine tool holder plays a crucial role in internal hole machining. However, traditional tool holder bodies 1 typically lack internal cooling, which can lead to uneven cooling and high-temperature annealing of the grooving inserts 3 and chamfering inserts 5 during prolonged use. This reduces the lifespan of the grooving inserts 3 and chamfering inserts 5 and increases the cost of purchasing them. Before using the tool holder body 1, the grooving inserts 3 can be inserted into the mounting slot 2. Then, two sets of rubber protective sleeves 8 are fitted onto the bottom ends of the two sets of first hexagon socket screws 4. At this point, the two sets of first hexagon socket screws 4 can be inserted into the tool holder body 1, allowing the rubber protective sleeves 8 at the bottom ends of the two sets of first hexagon socket screws 4 to rest above the grooving inserts 3. A locking tool can then be used to tighten the two sets of first hexagon socket screws 4. When the two sets of first hexagon socket screws 4 are tightened, their bottom ends and the rubber protective sleeves 8 can compress and solidify the grooving inserts 3. The installation of the grooving insert 3 is completed by fixing the rubber protective sleeve 8 to prevent the bottom end of the first internal hex screw 4 from directly contacting the surface of the grooving insert 3, thus making the surface of the grooving insert 3 less prone to wear. Then, the chamfering insert 5 is installed inside the tool holder body 1. When installing the chamfering insert 5, the end of the chamfering insert 5 closest to the inside of the tool holder body 1 does not contact the inner wall of the tool holder body 1, so that the end of the chamfering insert 5 closest to the inside of the tool holder body 1 is located on the path of the cooling channel 7. Then, the rubber protective sleeve 8 is fitted onto the bottom end of the second internal hex screw 6, and the chamfering insert 5 is installed in the same way as the grooving insert 3. After both the grooving insert 3 and the chamfering insert 5 are installed, the threaded connector 9 can be threadedly connected to the end of the tool holder body 1 away from the grooving insert 3, thus installing the threaded connector 9 at the end of the tool holder body 1. At this time, the through hole 10 inside the threaded connector 9 is interconnected with the cooling channel 7 inside the tool holder body 1, and one end of the lathe cooling pipe is connected to one end of the threaded connector 9.

[0020] See Figures 1-4 It can be seen that when the tool holder body 1 is installed on the lathe tool holder, and the grooving insert 3 and the chamfering insert 5 need to be cooled, the coolant can enter the through hole 10 through the lathe cooling pipe. The coolant in the through hole 10 can enter the cooling channel 7. The coolant can flow onto the chamfering insert 5 and the grooving insert 3 through the cooling channel 7. At this time, the coolant inside the cooling channel 7 can cool the chamfering insert 5 and the grooving insert 3. The coolant finally rushes out from the gaps on both sides of the second internal hexagon screw 6 and the first internal hexagon screw 4 above the chamfering insert 5 and the grooving insert 3. The internal cooling and cooling protection of the chamfering insert 5 and the grooving insert 3 can be achieved through the cooling channel 7, and the cooling is uniform, thereby extending the machining life of the chamfering insert 5 and the grooving insert 3. At the same time, the chamfering insert 5 can be replaced with a back boring insert of matching size, so that the tool holder body 1 can perform multi-functional machining operations including but not limited to boring, grooving, and internal and external chamfering.

[0021] In summary, when using this internally cooled multi-functional internal boring machine tool holder, the grooving insert 3 can be inserted into the mounting slot 2 first, and then the two sets of rubber protective sleeves 8 can be fitted onto the bottom ends of the two sets of first hexagon socket screws 4. At this time, the two sets of first hexagon socket screws 4 can be inserted into the inside of the tool holder body 1. The chamfering insert 5 and the grooving insert 3 can be internally cooled and protected through the cooling channel 7, and the cooling is uniform, thereby extending the processing life of the chamfering insert 5 and the grooving insert 3. At the same time, the chamfering insert 5 can be replaced with a back boring insert of matching size, so that the tool holder body 1 can perform multi-functional machining operations including but not limited to boring, grooving, and internal and external chamfering. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional internal cooling internal drilling machine tool holder, comprising: The tool holder body (1), mounting groove (2), and grooving blade (3) are characterized in that: The inner side of the end of the blade holder body (1) is provided with a mounting groove (2), and a grooving blade (3) is inserted into the mounting groove (2); The top of the cutter body (1) near the grooving blade (3) is threaded with a first internal hex screw (4). A chamfering blade (5) is inserted into the inside of the cutter body (1) near the grooving blade (3). A second internal hex screw (6) is threaded into the top of the cutter body (1) near the chamfering blade (5). A cooling channel (7) is provided inside the cutter body (1) near the grooving blade (3) and the chamfering blade (5).

2. The internally cooled multifunctional internal drilling machine tool holder according to claim 1, characterized in that: The bottom of the first hex socket screw (4) and the second hex socket screw (6) are both fitted with rubber protective sleeves (8).

3. The internally cooled multifunctional internal drilling machine tool holder according to claim 1, characterized in that: The end of the cutter bar body (1) away from the grooving blade (3) is threadedly connected to a threaded connector (9), and a through hole (10) is provided inside the threaded connector (9).

4. The internally cooled multifunctional internal drilling machine tool holder according to claim 3, characterized in that: The through hole (10) is interconnected with the cooling channel (7).

5. The internally cooled multifunctional internal drilling machine tool holder according to claim 2, characterized in that: There is a gap between the first hex socket screw (4) and the second hex socket screw (6) and the inner wall of the tool holder body (1), and there is also a gap between the top of the grooving blade (3) and the top of the chamfering blade (5) and the top of the inside of the tool holder body (1).

6. The internally cooled multifunctional internal drilling machine tool holder according to claim 5, characterized in that: Two sets of the first hexagon socket screw (4) and the second hexagon socket screw (6) are provided inside the tool holder body (1).

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