Cutter and chamfer machining structure

Abstract

The utility model discloses a cutter and a chamfer machining structure, which belong to the field of machine tool machining, and comprise a cutter head and a plurality of blades, the cutter head is provided with a plurality of mounting parts, the plurality of mounting parts are positioned at the edge of the cutter head, each mounting part is provided with a mounting groove and a mounting hole, and the cutter further comprises a third fastener, the third fasteners extend into the blades and are matched with the mounting holes to enable the blades to be detachably mounted in the mounting grooves, the multiple blades are evenly distributed on the outer edge of the cutterhead at intervals and located on the same circumference, when the blades are damaged during cutting, only the blades need to be replaced, the whole cutterhead does not need to be completely replaced, cost is reduced, and the machining period is shortened.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a cutting tool. Background Art

[0002] Due to different aperture diameters inside the spindle box, chamfered connections are provided. For the existing cutting tool, the cutter head and the cutting blade are of an integral structure. When the cutting blade is damaged, only the whole cutter head can be replaced, resulting in a long manufacturing cycle and high cost of the cutting tool. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the present utility model is to provide a cutting tool which, after the cutting blade is damaged, does not require the whole cutter head to be replaced, thus shortening the processing cycle.

[0004] In order to overcome the deficiencies of the prior art, the second purpose of the present utility model is to provide a chamfering processing structure which, after the cutting blade is damaged, does not require the whole cutter head to be replaced, thus shortening the processing cycle.

[0005] One of the purposes of the present utility model is realized by adopting the following technical solutions:

[0006] A cutting tool includes a cutter head and cutting blades. The number of the cutting blades is multiple. The cutter head is provided with a plurality of mounting parts which are located at the edge of the cutter head. Each mounting part is provided with a mounting groove and a mounting hole. The cutting tool further includes a third fastener which extends into the cutting blade and cooperates with the mounting hole to detachably mount the cutting blade in the mounting groove. The plurality of cutting blades are evenly spaced and distributed on the outer edge of the cutter head and the plurality of cutting blades are located on a circumference.

[0007] Furthermore, the cutting tool further includes a tool shank, a locating key and a first fastener. The locating key is fixed to the tool shank. The cutter head is provided with a locating groove and a plurality of mounting parts. The cutter head is detachably mounted on the tool shank through the first fastener. At least part of the locating key is located in the locating groove. The cutting blade is detachably mounted on the outer edge of the cutter head.

[0008] Furthermore, the extending direction of the locating key is the same as the extending direction of the tool shank, and the locating key circumferentially positions the cutter head.

[0009] Furthermore, the cutter head includes a fixing block and a mounting block extending from the fixing block. Both the fixing block and the mounting block are cylindrical. The diameter of the fixing block is smaller than that of the mounting block. The locating groove is arranged on the fixing block.

[0010] Further, the cutter head is provided with a stepped hole which penetrates through the fixing block and the mounting block. The axis of the stepped hole coincides with the axis of the tool shank. The end of the tool shank extends into the stepped hole, and the first fastening member is installed in the stepped hole and connected to the end of the tool shank.

[0011] Further, the tool further includes a gasket which is located in the stepped hole. The first fastening member presses the gasket to fasten the mounting block.

[0012] Further, the outer edge of the mounting block is in a toothed structure, and the blade is detachably mounted on the convex teeth.

[0013] Further, the tool further includes a second fastening member which is a screw. The positioning key is fixed to the tool shank by the second fastening member.

[0014] Further, the positioning key is linear.

[0015] The second object of the present utility model is achieved by the following technical solution:

[0016] A chamfering processing structure includes a spindle box. The spindle box is internally provided with a spindle hole and a clearance hole. The spindle hole and the clearance hole are coaxially arranged. The diameter of the spindle hole is different from the diameter of the clearance hole. The spindle hole and the clearance hole are chamfer-connected. The chamfering processing structure further includes any one of the above-mentioned tools, and the tool is located inside the spindle box to process the chamfer.

[0017] Compared with the prior art, the cutter head of the tool of the present utility model is provided with a plurality of mounting parts which are located at the edge of the cutter head. Each mounting part is provided with a mounting groove and a mounting hole. The tool further includes a third fastening member which extends into the blade and cooperates with the mounting hole to detachably mount the blade in the mounting groove. A plurality of blades are evenly spaced and distributed on the outer edge of the cutter head and a plurality of blades are located on a circumference. When the blade is damaged by cutting, only the blade needs to be replaced, and there is no need to replace the entire cutter head, thus shortening the processing cycle. Description of the Drawings

[0018] Figure 1 is a perspective view of the tool of the present utility model;

[0019] Figure 2 is Figure 1 the front view of the tool of

[0020] Figure 3 is Figure 1 the perspective view of the cutter head of the tool of

[0021] Figure 4 is a schematic diagram of the chamfering processing structure of the present utility model.

[0022] In the figure: 10, cutting tool; 11, tool shank; 12, locating key; 13, tool disc; 130, fixing block; 1301, locating groove; 131, mounting block; 1310, mounting portion; 1311, stepped hole; 14, blade; 15, spacer; 16, first fastener; 17, second fastener; 18, third fastener; 20, spindle box; 21, spindle hole; 22, clearance hole; 23, chamfer. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be another intermediate component through which it is fixed. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Please refer to Figures 1 to 4 , a cutting tool 10 of the present invention is used to machine the chamfer 23 inside the spindle box 20. The spindle box 20 is internally provided with a spindle hole 21 and a clearance hole 22. The diameter of the clearance hole 22 is larger than the diameter of the spindle hole 21. The intersection of the clearance hole 22 and the spindle hole 21 is provided as a chamfer 23, and the cutting tool 10 is used to machine the chamfer 23.

[0027] The cutting tool 10 includes a tool shank 11, a locating key 12, a tool disc 13, a plurality of blades 14, a spacer 15, a first fastener 16, a second fastener 17 and a third fastener 18.

[0028] The end of the tool shank 11 is used to mount the tool disc 13. Specifically, the tool shank 11 is cylindrical. One end of the tool shank 11 is used to mount the tool disc 13, and a pull stud is provided at the other end. A boss is provided at the end of the tool shank 11 for mounting the tool disc 13. The boss is used to extend into the tool disc 13 to achieve detachable connection.

[0029] The positioning key 12 is fixed to the end of the tool shank 11, and a part of the positioning key 12 extends out from the end of the tool shank 11. The extended positioning key 12 is latched with the tool disc 13 to achieve circumferential positioning of the tool disc 13. Specifically, the positioning key 12 is in a shape of a straight bar. One end of the positioning key 12 is fixed to the tool shank 11 by a second fastener 17. In this embodiment, the second fastener 17 is a screw.

[0030] The tool disc 13 includes a fixing block 130 and a mounting block 131. The mounting block 131 extends from the fixing block 130 and is an integral structure. Both the fixing block 130 and the mounting block 131 are cylindrical, and the fixing block 130 and the mounting block 131 are coaxially arranged. The diameter of the fixing block 130 is smaller than that of the mounting block 131, so that the edge of the mounting block 131 protrudes, which is convenient for chamfering 23 of the blade 14. The fixing block 130 is provided with a positioning groove 1301 for mounting the positioning key 12. The tool disc 13 is provided with a stepped hole 1311 that penetrates through the fixing block 130 and the mounting block 131. The stepped hole 1311 is arranged along the axis of the tool disc 13 and is used for mounting the first fastener 16 to detachably mount the tool disc 13 to the tool shank 11.

[0031] The outer edge of the mounting block 131 is a toothed structure, and a groove is formed between adjacent teeth. The groove is rectangular. An installation portion 1310 is formed at the edge of the side wall of each groove. The installation portion 1310 is provided with an installation groove and an installation hole located in the installation groove. The installation groove is used for installing the blade 14, and the installation hole is used for installing the third fastener 18 to detachably mount the blade 14 to the installation portion 1310. Specifically, the third fastener 18 is a locking screw. A plurality of installation portions 1310 are evenly spaced, and a plurality of installation portions 1310 are all located on the outer edge of the mounting block 131 and on the same circumference.

[0032] Each blade 14 is detachably mounted to an installation portion 1310.

[0033] The gasket 15 is located in the stepped hole 1311, and the gasket 15 is located between the first fastener 16 and the tool disc 13. Specifically, the first fastener 16 is a screw.

[0034] When using the tool 10, the tool 10 extends into the spindle hole 21 of the spindle box 20, and the blade 14 processes the chamfer 23. When the cutting edge of the blade 14 is damaged, only the new blade 14 needs to be replaced, and there is no need to replace the tool disc 13 as a whole, which reduces the cost and shortens the processing cycle.

[0035] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can be made. These are all equivalent modifications and evolutions to the above embodiments based on the essential technology of the present utility model, and all of these fall within the protection scope of the present utility model.

Claims

1. A cutting tool, comprising a tool disc and a cutting blade, characterized in that: The number of the blades is multiple. The cutter head is provided with a plurality of mounting parts which are located at the edge of the cutter head. Each mounting part is provided with a mounting groove and a mounting hole. The tool further includes a third fastener which extends into the blade and cooperates with the mounting hole to detachably mount the blade in the mounting groove. The plurality of blades are evenly spaced and distributed on the outer edge of the cutter head and the plurality of blades are located on a circumference.

2. The cutting tool according to claim 1, wherein: The tool further includes a tool shank, a locating key and a first fastener. The locating key is fixed to the tool shank. The cutter head is provided with a locating groove and a plurality of mounting parts. The cutter head is detachably mounted on the tool shank through the first fastener. At least part of the locating key is located in the locating groove. The blade is detachably mounted on the outer edge of the cutter head.

3. The tool according to claim 2, characterized in that: The extending direction of the locating key is the same as the extending direction of the tool shank. The locating key circumferentially positions the cutter head.

4. The cutting tool according to claim 2, characterized in that: The cutter head includes a fixing block and a mounting block extending from the fixing block. Both the fixing block and the mounting block are cylindrical. The diameter of the fixing block is smaller than the diameter of the mounting block. The locating groove is arranged on the fixing block.

5. The cutting tool according to claim 4, characterized in that: The cutter head is provided with a stepped hole which penetrates through the fixing block and the mounting block. The axis of the stepped hole coincides with the axis of the tool shank. The end of the tool shank extends into the stepped hole. The first fastener is mounted in the stepped hole and connected with the end of the tool shank.

6. The tool according to claim 5, characterized in that: The tool further includes a gasket which is located in the stepped hole. The first fastener presses the gasket to fasten the mounting block.

7. The cutting tool according to claim 5, wherein: The outer edge of the mounting block is in a toothed structure. The blade is detachably mounted on the convex teeth.

8. The cutting tool according to claim 2, characterized in that: The tool further includes a second fastener which is a screw. The locating key is fixed to the tool shank through the second fastener.

9. The cutting tool according to claim 2, characterized in that: The locating key is linear.

10. A chamfering processing structure includes a spindle box. Inside the spindle box, there are a spindle hole and a clearance hole. The spindle hole and the clearance hole are coaxially arranged. The diameter of the spindle hole is different from that of the clearance hole. The spindle hole and the clearance hole are chamfer-connected. It is characterized in that: The chamfering processing structure further includes the tool according to any one of claims 1-9. The tool processes the chamfer inside the headstock.

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