Composite knife handle

Abstract

The utility model provides a composite cutter handle which comprises a cutter handle body, the tail end of the cutter handle body is used for being connected with a machine tool, and a clamping part used for installing a cutter is formed at the front end of the cutter handle body; and the plurality of milling blades are arranged on the outer peripheral side of the front end of the cutter handle main body in the circumferential direction, so that the cutter handle main body serves as a milling tool when a cutter is not mounted. The composite cutter handle can be used as a cutter handle for installing a cutter at the front end, can also be used as a milling tool when the cutter handle is not installed, and has the functions of cutter fixing and milling at the same time.

Description

Technical Field

[0001] The present disclosure generally relates to the field of machine tool processing technology, and more particularly to a composite tool holder. Background Art

[0002] The tool holder is a key component in machine tool processing, responsible for connecting and securing the tool to the machine tool. Existing tool holders can only be used to secure the tool, and processing primarily relies on the tool. This results in a single function for the tool holder, making it unsuitable for other work scenarios. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a composite tool handle to solve the above-mentioned problems.

[0004] The present application provides a composite tool handle, comprising:

[0005] A tool handle body, the end of which is used to connect to a machine tool, and the front end of which is formed with a clamping portion for mounting a tool;

[0006] A plurality of milling blades are arranged circumferentially on the outer peripheral side of the front end of the tool holder body, so that the tool holder body can be used as a milling tool when no tool is installed.

[0007] According to the technical solution provided in the embodiment of the present application, a plurality of concave blade grooves are formed on the front end outer wall of the handle body, and the blade grooves are used to fix the milling blades.

[0008] According to the technical solution provided in the embodiment of the present application, a chip removal groove is further provided at the front end of the tool handle body corresponding to each of the blade slots, and the chip removal groove is communicated with the blade slot.

[0009] According to the technical solution provided in the embodiment of the present application, a threaded hole is provided on the side wall of the blade slot, and the threaded hole is used to cooperate with a screw to fix the milling blade.

[0010] According to the technical solution provided in the embodiment of the present application, the handle body includes a handle outer shell and a handle inner shell, the handle inner shell is embedded in the front end of the handle outer shell and is coaxially arranged with the handle outer shell, the cross-section of the handle inner shell is annular, and the clamping portion is formed on the inner side of the handle inner shell; an annular hydraulic oil chamber is formed between the handle outer shell and the handle inner shell, and when the oil pressure in the hydraulic oil chamber increases, the handle inner shell is squeezed to tighten the clamping portion.

[0011] According to the technical solution provided in the embodiment of the present application, a first oil circuit is provided on the shank housing, one end of the first oil circuit is connected to the hydraulic oil chamber, and the other end is provided with an adjusting bolt, which is used to adjust the oil pressure in the hydraulic oil chamber.

[0012] According to the technical solution provided in the embodiment of the present application, a second oil circuit is also provided on the shank housing, one end of the second oil circuit is connected to the hydraulic oil chamber, and the other end is used for an external oil supply device; a sealing plug top screw is provided at one end of the second oil circuit for connection to the external oil supply device.

[0013] According to the technical solution provided in the embodiment of the present application, the hydraulic oil chamber includes two hydraulic sub-oil chambers, which are respectively formed at both ends of the inner shell of the tool handle, and the two hydraulic sub-oil chambers are connected through an oil guide passage.

[0014] Compared with the prior art, the present invention has the following advantages: when a cutting tool is mounted on the clamping portion of the tool holder, the tool holder can be used as a tool handle; and by providing multiple milling blades at the front end of the tool holder, the tool holder can be used as a milling tool when no cutting tool is mounted on the clamping portion. The composite tool holder provided by the present invention has the functions of both a tool handle and a milling tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 A schematic diagram of the structure of the composite knife handle provided in this application;

[0017] Figure 2 for Figure 1 A schematic structural diagram of the composite tool handle from another perspective;

[0018] Figure 3 for Figure 2 A top view of the composite shank shown;

[0019] Figure 4 for Figure 3 The cross-sectional view of the composite tool holder shown is at AA;

[0020] Figure 5 for Figure 4 A magnified schematic diagram of point a in the middle;

[0021] Figure 6 for Figure 3 The cross-sectional view of the composite tool holder at BB is shown;

[0022] Figure 7 for Figure 3 The cross-sectional view of the composite tool holder at CC is shown;

[0023] Figure 8 for Figure 2 A front view of the composite tool holder shown;

[0024] Figure 9 for Figure 8 Cross-sectional view of the composite tool handle at DD

[0025] Figure numbers: 1. Tool holder body; 2. Clamping part; 3. Milling blade; 4. Blade slot; 5. Chip groove; 6. Screw; 7. Tool holder outer shell; 8. Tool holder inner shell; 9. Hydraulic oil chamber; 10. First oil circuit; 11. Adjusting bolt; 12. Second oil circuit; 13. Sealing plug top screw; 14. Oil guide passage; 15. Inner oil circuit; 16. Hydraulic sub-oil chamber; 17. Sealing ring. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Example 1

[0029] Please refer to Figures 1-9 The present application provides a composite tool handle, comprising:

[0030] A tool handle body 1, the end of which is used to connect to a machine tool, and a clamping portion 2 for mounting a tool is formed at the front end of the tool handle body 1;

[0031] A plurality of milling inserts 3 are arranged circumferentially on the outer peripheral side of the front end of the tool holder body 1 so that the tool holder body 1 can be used as a milling tool when no tool is installed.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the tool holder body 1 is hollow inside and connected at both ends, wherein the rear end is used to be fixed on the machine tool, and the opening at the front end forms the clamping portion 2. The tool for processing is inserted into the clamping portion 2, and the tool is fixed by tightening the clamping portion 2. When the tool holder body 1 is used as a tool holder, it can be selected from one of a hydraulic tool holder, a spring chuck tool holder, an ER chuck tool holder, a TG chuck tool holder, or a stress-locking tool holder. A plurality of milling blades 3 are provided on the outer peripheral side of the front end of the tool holder body 1. The plurality of milling blades 3 are evenly arranged and detachably connected to the tool holder body 1. In this embodiment, as shown in the figure, four milling blades 3 are provided.

[0033] When a tool is needed for processing, the tool can be installed on the clamping part 2 for processing, and the tool holder body 1 is used as a tool holder. At this time, the front end of the tool holder body 1 can be equipped with the milling blade 3. When milling processing is required, the tool installed on the clamping part 2 can be removed, and the milling blade 3 can be installed on the front end of the tool holder body 1. The tool holder body 1 and the milling blade 3 are used together as a milling tool.

[0034] Furthermore, a plurality of concave blade slots 4 are formed on the front end outer wall of the handle body 1 , and the blade slots 4 are used to fix the milling blades 3 .

[0035] Specifically, the front end of the handle body 1 is concave to form the blade slot 4. The width direction of the blade slot 4 is parallel to the radial direction of the front end of the handle body 1, and the length direction of the blade slot 4 is parallel to the axial direction of the handle body 1. The thickness of the blade slot 4 is slightly greater than the thickness of the milling blade 3. The milling blade 3 is embedded in the blade slot 4, and the portion used for milling extends out of the blade slot 4.

[0036] Furthermore, a chip removal groove 5 is provided at the front end of the tool handle body 1 corresponding to each of the blade slots 4 , and the chip removal groove 5 is communicated with the blade slot 4 .

[0037] Specifically, the chip groove 5 is formed inwardly on one side of each blade groove 4 on the tool handle body 1, and the chip groove 5 is connected to the blade groove 4. The length of the chip groove 5 along the axial direction of the tool handle body 1 is greater than the length of the blade groove 4. The side wall of the chip groove 5 on one side connected to the blade groove 4 extends along the axial direction parallel to the tool handle body 1, and the side wall on the other side of the chip groove 5 forms a smooth curved surface. The chip groove 5 is used to discharge waste chips during milling processing.

[0038] Furthermore, a threaded hole is provided on the side wall of the blade slot 4 , and the threaded hole is used to cooperate with the screw 6 to fix the milling blade 3 .

[0039] Specifically, a threaded hole is provided on the side wall of the blade slot 4 away from the chip groove 5, and a through hole corresponding to the threaded hole is provided on the milling blade 3. A screw 6 passes through the through hole and extends into the threaded hole for threaded connection, so that the milling blade 3 can be fixed.

[0040] Example 2

[0041] In this embodiment, the handle body 1 is a hydraulic handle, and the handle body 1 includes a handle outer shell 7 and a handle inner shell 8. The handle inner shell 8 is embedded in the front end of the handle outer shell 7 and is coaxially arranged with the handle outer shell 7. The cross-section of the handle inner shell 8 is annular, and the clamping part 2 is formed on the inner side of the handle inner shell 8; an annular hydraulic oil chamber 9 is formed between the handle outer shell 7 and the handle inner shell 8, and when the oil pressure in the hydraulic oil chamber 9 increases, the handle inner shell 8 is squeezed to tighten the clamping part 2.

[0042] Specifically, such as Figure 3-Figure 5 As shown, the handle outer shell 7 and the handle inner shell 8 are both cylindrical structures. The handle inner shell 8 is inserted into the front end of the handle outer shell 7 and is coaxial with the handle outer shell 7, thereby forming the handle body 1. The interior of the handle inner shell 8 forms the clamping portion 2. A sealing ring 17 is provided at the connection between the handle inner shell 8 and the handle outer shell 7. Due to the different diameters of the handle inner shell 8 and the handle outer shell 7, after the handle inner shell 8 is inserted into the handle outer shell 7, a sealed annular hydraulic oil chamber 9 is formed between the outer wall and the inner wall of the handle inner shell 8. An internal oil passage 15 is formed within the side wall of the handle outer shell 7 and communicates with the hydraulic oil chamber 9 for supplying hydraulic oil to the hydraulic oil chamber 9. The hydraulic oil chamber 9 is filled with hydraulic oil. By increasing the pressure of the hydraulic oil in the hydraulic oil chamber 9, the hydraulic oil squeezes the handle inner shell 8 inward, thereby clamping and securing the tool.

[0043] Furthermore, a first oil circuit 10 is provided on the shank housing 7 . One end of the first oil circuit 10 is connected to the hydraulic oil chamber 9 , and the other end is provided with an adjusting bolt 11 . The adjusting bolt 11 is used to adjust the oil pressure in the hydraulic oil chamber 9 .

[0044] Specifically, such as Figure 1 、 Figure 6 and Figure 9 As shown, the first oil circuit 10 is formed inside the side wall of the handle housing 7. One end of the first oil circuit 10 communicates with the hydraulic oil chamber 9 through the internal oil circuit 15, and the other end of the first oil circuit 10 passes through the outer wall of the handle housing 7 and communicates with the outside. An adjusting bolt 11 is provided at one end of the first oil circuit 10 that communicates with the outside. The adjusting bolt 11 is threadedly connected to the handle housing 7 and is provided with a sealing plug that extends into the interior of the first oil circuit 10. Rotating the adjusting bolt 11 causes the sealing plug to squeeze the hydraulic oil in the first oil circuit 10, thereby increasing the oil pressure in the hydraulic oil chamber 9 to control the tightening degree of the handle inner housing 8.

[0045] Furthermore, a second oil circuit 12 is provided on the handle housing 7, one end of the second oil circuit 12 is connected to the hydraulic oil chamber 9, and the other end is used for external oil supply equipment; the end of the second oil circuit 12 for connecting to the external oil supply equipment is provided with a sealing plug top screw 13.

[0046] Specifically, such as Figure 2 、 Figure 7 and Figure 9 As shown, the second oil circuit 12 is formed inside the side wall of the tool handle housing 7. One end of the second oil circuit 12 is connected to the hydraulic oil chamber 9 through the internal oil circuit 15, and the other end of the second oil circuit 12 passes through the outer wall of the tool handle housing 7 and is connected to the outside. The second oil circuit 12 is used to connect to an external oil supply device to fill the hydraulic oil chamber 9 with hydraulic oil. The sealing plug top screw 13 is provided at one end of the second oil circuit 12 that is connected to the outside. The sealing plug top screw 13 is used to ensure the sealing of the interface position when the second oil circuit 12 is connected to the external oil supply device to prevent leakage of hydraulic oil.

[0047] Furthermore, the hydraulic oil chamber 9 includes two hydraulic sub-oil chambers 16 , which are respectively formed at two ends of the tool handle inner shell 8 , and the two hydraulic sub-oil chambers 16 are connected through an oil guide passage 14 .

[0048] Specifically, such as Figure 5As shown, the reason why the hydraulic oil chamber 9 is configured as two hydraulic sub-oil chambers 16, which are respectively provided at both ends of the hydraulic oil chamber 9, is to take into account both the clamping stability of the tool and the high efficiency of oil pressure regulation. When the two hydraulic sub-oil chambers 16 are pressurized, the hydraulic oil squeezes the two ends of the tool handle inner shell 8, thereby providing clamping force to the tool only at the two ends of the clamping part 2. Compared with squeezing the entire tool handle inner shell 8, the squeezing method at both ends makes the clamping stability of the tool better; compared with arranging the hydraulic oil chamber 9 between the entire tool handle inner shell 8 and the tool handle outer shell 7, the hydraulic oil chamber 9 is configured as two hydraulic sub-oil chambers 16 and is provided at both ends of the tool handle inner shell 8. While meeting the regulation function, the amount of hydraulic oil required is less, which saves costs on the one hand, and on the other hand, a small amount of hydraulic oil can make the regulation faster. One of the hydraulic sub-oil chambers 16 is directly connected to the internal oil circuit 15, and the other hydraulic sub-oil chamber 16 is connected to the previous hydraulic sub-oil chamber 16 through the oil guiding passage 14; the oil guiding passage 14 is arranged between the two hydraulic sub-oil chambers 16 and is annular. The width of the oil guiding passage 14 is much smaller than the width of the hydraulic sub-oil chamber 16. When the hydraulic sub-oil chamber 16 is pressurized, the oil pressure in the oil guiding passage 14 will also rise, so that the hydraulic oil in the oil guiding passage 14 will also squeeze the tool handle inner shell 8, thereby providing a certain degree of clamping force on the tool at the middle position of the tool handle inner shell 8.

[0049] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A composite knife handle, characterized in that: include: A tool handle body (1), the end of the tool handle body (1) is used to connect to a machine tool, and the front end of the tool handle body (1) is formed with a clamping portion (2) for mounting a tool; A plurality of milling blades (3) are arranged circumferentially on the outer peripheral side of the front end of a tool holder body (1), so that the tool holder body (1) can be used as a milling tool when a tool is not installed.

2. The composite knife handle according to claim 1, characterized in that: A plurality of inwardly concave blade slots (4) are formed on the front end outer wall of the tool handle body (1), and the blade slots (4) are used to fix the milling blade (3).

3. The composite knife handle according to claim 2, characterized in that: The front end of the tool handle body (1) is further provided with a chip removal groove (5) corresponding to each blade groove (4), and the chip removal groove (5) is communicated with the blade groove (4).

4. The composite knife handle according to claim 3, characterized in that: The side wall of the blade slot (4) is provided with a threaded hole, and the threaded hole is used to cooperate with a screw (6) to fix the milling blade (3).

5. The composite knife handle according to claim 4, characterized in that: The handle body (1) comprises a handle outer shell (7) and a handle inner shell (8), wherein the handle inner shell (8) is embedded in the front end of the handle outer shell (7) and is coaxially arranged with the handle outer shell (7), and the cross section of the handle inner shell (8) is annular, and the inner side of the handle inner shell (8) forms the clamping portion (2); an annular hydraulic oil chamber (9) is formed between the handle outer shell (7) and the handle inner shell (8), and when the oil pressure in the hydraulic oil chamber (9) increases, the handle inner shell (8) is squeezed to tighten the clamping portion (2).

6. The composite knife handle according to claim 5, characterized in that: A first oil circuit (10) is provided on the tool handle housing (7), one end of the first oil circuit (10) is connected to the hydraulic oil chamber (9), and the other end is provided with an adjusting bolt (11), and the adjusting bolt (11) is used to adjust the oil pressure in the hydraulic oil chamber (9).

7. The composite knife handle according to claim 6, characterized in that: The tool handle housing (7) is further provided with a second oil circuit (12), one end of which is in communication with the hydraulic oil chamber (9), and the other end of which is used for connecting to an external oil supply device; a sealing plug top screw (13) is provided at one end of the second oil circuit (12) for connecting to the external oil supply device.

8. The composite knife handle according to claim 7, characterized in that: The hydraulic oil chamber (9) includes two hydraulic sub-oil chambers (16), the two hydraulic sub-oil chambers (16) are respectively formed at two ends of the tool handle inner shell (8), and the two hydraulic sub-oil chambers (16) are connected through an oil guide passage (14).

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