Tool bit protection structure of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool's cutting head protection structure, including connector and connecting the cutting head at the bottom end of connector, the outside of cutting head is sleeved with the movable protection structure, the top end of movable protection structure is connected with the telescopic structure, the telescopic structure includes telescopic groove, telescopic connecting rod, spring, through groove and telescopic top groove, and the telescopic connecting rod is connected with the telescopic groove. The movable protection structure is of an annular structure in an overhead view; the designed movable protection structure covers the outer side of the tool bit, the protection effect on the tool bit can be achieved, the telescopic structure at the top of the movable protection structure has the telescopic adjusting capacity, and therefore the movable protection structure can cover the outer side of the tool bit all the time; the movable protection structure can be extruded to conduct self-adaptive shrinkage, so that normal machining is not affected, through the structural design, the good protection effect can be achieved, and the movable protection structure does not need to be disassembled and assembled frequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool cutter heads, and in particular relates to a cutter head protection structure of a numerical control machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. The machine tool contains a large number of accessories, and the cutter head is one of the most important accessories. When the machine tool is in use, the material is processed by the high-speed rotating cutter head.

[0003] The integrity of the cutter head directly determines the processing effect, so the protection of the cutter head is very important. The existing protection method is generally to directly set a protective cover on the outside of the cutter head. The protective cover needs to be removed from the outside of the cutter head when in use, and the protective cover needs to be installed when not in use. This method that requires frequent disassembly and assembly of the protective cover is not convenient enough. Therefore, it is necessary to design a new cutter head protection structure to solve this problem. Utility Model Content

[0004] The utility model aims to provide a tool head protection structure for a CNC machine tool, so as to solve the problem that the existing tool head protection method proposed in the above background technology is inconvenient to disassemble and assemble the protection cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool head protection structure of a CNC machine tool, comprising a connecting head and a tool head connected to the bottom end of the connecting head, a movable protection structure is provided on the outer side of the tool head, a telescopic structure is connected to the top of the movable protection structure, the telescopic structure comprises a telescopic slot, a telescopic connecting rod, a spring, a through slot and a telescopic top slot, the movable protection structure is an annular structure when viewed from above, the telescopic slot is opened inside the connecting head and is an annular cross-section matched with the movable protection structure, the top end of the movable protection structure is slidably connected to the inside of the telescopic slot, the telescopic connecting rod is movably arranged inside the telescopic slot, the through slot is opened at the top of the telescopic slot, the telescopic top slot is opened at the top of the through slot, the bottom end of the telescopic connecting rod is fixedly connected to the movable protection structure, the top end slides into the inside of the telescopic top slot, and the spring is arranged between the top of the telescopic slot and the movable protection structure.

[0006] Preferably, there are two telescopic connecting rods, and the spring is sleeved on the outer surface of the telescopic connecting rod.

[0007] Preferably, the telescopic structure further includes an anti-dropout block, and the top end of the telescopic connecting rod is fixedly connected to the anti-dropout block.

[0008] Preferably, the top end of the telescopic connecting rod and the anti-dropping block form a T-shaped structure, and the anti-dropping block fits against the inner wall of the telescopic top groove.

[0009] Preferably, the movable protective structure includes a connecting ring, a protective inner cover, an iron ring, an annular groove and a magnetic ring. The connecting ring is arranged on the top of the protective inner cover, the iron ring is fixed on the bottom surface of the connecting ring and embedded in the annular groove opened on the top surface of the protective inner cover, and the magnetic ring is fixed on the bottom of the annular groove and is magnetically connected to the iron ring.

[0010] Preferably, the movable protective structure further comprises a through slot, and the through slot penetrates and is opened on the outer surface of the protective inner cover.

[0011] Preferably, an outer protective assembly is provided on the outer side of the bottom end of the connector, and the outer protective assembly includes a protective outer cover, a retaining ring and a retaining groove. The protective outer cover covers the outer surface of the cutter head and the movable protective structure, and the retaining ring is fixed on the inner side of the top end of the protective outer cover and is inserted into the retaining groove opened on the bottom end surface of the connector.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The designed movable protective structure covers the outside of the cutter head, which can protect the cutter head, and the telescopic structure on the top of the movable protective structure has telescopic adjustment capability. Therefore, the movable protective structure can always cover the outside of the cutter head. When the cutter head is drilling, the movable protective structure can be squeezed and adaptively contracted, thereby not affecting normal processing. Through the design of the above structure, it can achieve good protection effect without the need for frequent disassembly and assembly of the movable protective structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional view of the utility model;

[0015] Figure 2 It is a partial front cross-sectional view of the telescopic structure of the utility model;

[0016] Figure 3 It is a partial front cross-sectional view of the movable protective structure of the utility model;

[0017] Figure 4 It is a partial front cross-sectional view of the outer protection component of the utility model;

[0018] In the figure: 100, connector; 200, cutter head; 300, movable protective structure; 301, connecting ring; 302, protective inner cover; 303, iron ring; 304, annular groove; 305, magnetic ring; 306, through groove; 400, telescopic structure; 401, telescopic groove; 402, telescopic connecting rod; 403, spring; 404, through groove; 405, telescopic top groove; 406, anti-drop block; 500, external protective assembly; 501, protective outer cover; 502, clamping ring; 503, clamping groove. DETAILED DESCRIPTION

[0019] 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.

[0020] Example

[0021] See also Figures 1 to 4 , is an embodiment of the utility model, and this embodiment provides a technical solution: a tool head protection structure of a CNC machine tool, comprising a connecting head 100 and a tool head 200 connected to the bottom end of the connecting head 100, a movable protection structure 300 is sleeved on the outer side of the tool head 200, which can protect the tool head 200, and a telescopic structure 400 is connected to the top of the movable protection structure 300, so that the movable protection structure 300 has telescopic ability, and the telescopic structure 400 includes a telescopic groove 401, a telescopic connecting rod 402, a spring 403, a through groove 404 and a telescopic top groove 405. The movable protection structure 300 is an annular structure when viewed from above, and the telescopic groove 401 is opened inside the connecting head 100 and is an annular cross-section adapted to the movable protection structure 300. The top of the movable protection structure 300 is slidably connected to the inside of the telescopic groove 401, and the movable protection structure 30 0 can be lifted and lowered inside the telescopic slot 401, the telescopic connecting rod 402 is movably arranged inside the telescopic slot 401, the through slot 404 is arranged at the top of the telescopic slot 401, the telescopic top slot 405 is arranged at the top of the through slot 404, the bottom end of the telescopic connecting rod 402 is fixedly connected to the movable protective structure 300, and the top end slides into the inside of the telescopic top slot 405, the spring 403 is arranged between the top of the telescopic slot 401 and the movable protective structure 300, when the cutter head 200 moves down to perform drilling operation, the movable protective structure 300 is compressed and shrinks and moves up inside the telescopic slot 401, which does not affect the normal drilling operation, when the cutter head 200 moves up, the spring 403 pushes the movable protective structure 300 to reset, under this design, the movable protective structure 300 can always cover the outside of the cutter head 200, so as to play a good protective role.

[0022] In this embodiment, preferably, there are two telescopic connecting rods 402 so that the movable protective structure 300 can be stably raised and lowered, and the spring 403 is sleeved on the outer surface of the telescopic connecting rod 402 to prevent the spring 403 from bending.

[0023] In this embodiment, preferably, the telescopic structure 400 also includes an anti-dropout block 406, and the top of the telescopic connecting rod 402 is fixedly connected to the anti-dropout block 406. The top of the telescopic connecting rod 402 and the anti-dropout block 406 form a T-shaped structure to prevent dropout. The anti-dropout block 406 fits against the inner wall of the telescopic top groove 405, so that the telescopic connecting rod 402 can be lifted and slid stably.

[0024] In this embodiment, preferably, the movable protective structure 300 includes a connecting ring 301, a protective inner cover 302, an iron ring 303, an annular groove 304 and a magnetic ring 305. The connecting ring 301 is arranged on the top of the protective inner cover 302, the iron ring 303 is fixed on the bottom surface of the connecting ring 301, and is embedded in the annular groove 304 opened on the top surface of the protective inner cover 302. The magnetic ring 305 is fixed at the bottom of the annular groove 304 and is magnetically connected to the iron ring 303 to complete the connection between the connecting ring 301 and the protective inner cover 302. If the protective inner cover 302 needs to be disassembled, it only needs to pull the protective inner cover 302 downward with force.

[0025] In this embodiment, preferably, the movable protective structure 300 further includes a through slot 306 , which penetrates through the outer surface of the protective inner cover 302 and can play a role in heat dissipation.

[0026] In the present embodiment, preferably, an outer protection component 500 is provided on the outer side of the bottom end of the connector 100 to further enhance the protection effect. The outer protection component 500 includes a protective cover 501, a retaining ring 502 and a slot 503. The protective cover 501 covers the outer surfaces of the cutter head 200 and the movable protection structure 300. The retaining ring 502 is fixed to the inner side of the top end of the protective cover 501 and is inserted into the slot 503 provided on the bottom surface of the connector 100. During daily use, the protective cover 501 can be directly removed and the movable protection structure 300 can be used for protection to avoid frequent disassembly and assembly operations. When the device is transported or not used for a long time, the protective cover 501 can be installed to further enhance the protection effect.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), 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. A tool head protection structure for a numerically controlled machine tool, comprising a connector (100) and a tool head (200) connected to the bottom end of the connector (100), characterized in that: The outer side of the cutter head (200) is sleeved with a movable protective structure (300), the top end of the movable protective structure (300) is connected to a telescopic structure (400), the telescopic structure (400) comprises a telescopic slot (401), a telescopic connecting rod (402), a spring (403), a through slot (404) and a telescopic top slot (405), the movable protective structure (300) is an annular structure when viewed from above, the telescopic slot (401) is provided inside the connector (100) and is an annular cross-section that matches the movable protective structure (300), and the movable protective structure (300) is a telescopic structure that is arranged on the outer side of the cutter head (200), and the telescopic slot (401) is a telescopic structure that matches the movable protective structure (300). The top end of the telescopic structure (300) is slidably connected to the inside of the telescopic slot (401), the telescopic connecting rod (402) is movably arranged in the telescopic slot (401), the through slot (404) is arranged at the top end of the telescopic slot (401), the telescopic top slot (405) is arranged at the top end of the through slot (404), the bottom end of the telescopic connecting rod (402) is fixedly connected to the movable protective structure (300), and the top end slides into the inside of the telescopic top slot (405), and the spring (403) is arranged between the top end of the telescopic slot (401) and the movable protective structure (300).

2. The tool head protection structure of a CNC machine tool according to claim 1, characterized in that: There are two telescopic connecting rods (402), and the spring (403) is sleeved on the outer surface of the telescopic connecting rod (402).

3. The tool head protection structure of a CNC machine tool according to claim 1, characterized in that: The telescopic structure (400) further comprises an anti-slip block (406), and the top end of the telescopic connecting rod (402) is fixedly connected to the anti-slip block (406).

4. The tool head protection structure of a CNC machine tool according to claim 3, characterized in that: The top end of the telescopic connecting rod (402) and the anti-slip block (406) form a T-shaped structure, and the anti-slip block (406) fits against the inner wall of the telescopic top groove (405).

5. The tool head protection structure of a CNC machine tool according to claim 1, characterized in that: The movable protective structure (300) comprises a connecting ring (301), a protective inner cover (302), an iron ring (303), an annular groove (304) and a magnetic ring (305); the connecting ring (301) is arranged on the top of the protective inner cover (302); the iron ring (303) is fixed to the bottom surface of the connecting ring (301) and embedded in the annular groove (304) provided on the top surface of the protective inner cover (302); the magnetic ring (305) is fixed to the bottom of the annular groove (304) and is magnetically connected to the iron ring (303).

6. The tool head protection structure of a CNC machine tool according to claim 5, characterized in that: The movable protective structure (300) further comprises a through slot (306), wherein the through slot (306) penetrates and is opened on the outer surface of the protective inner cover (302).

7. The tool head protection structure of a CNC machine tool according to claim 1, characterized in that: An outer protection component (500) is arranged on the outer side of the bottom end of the connector (100), and the outer protection component (500) comprises a protection cover (501), a retaining ring (502) and a retaining groove (503). The protection cover (501) covers the outer surface of the cutter head (200) and the movable protection structure (300), and the retaining ring (502) is fixed on the inner side of the top end of the protection cover (501) and is retained in the retaining groove (503) provided on the bottom end surface of the connector (100).

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