Dovetail groove turning tool

Abstract

The utility model relates to the technical field of turning tools, and aims to solve the technical problems that tool connecting marks appear on a product, and the sizes such as the symmetry degree are difficult to guarantee. In order to solve the technical problem, the utility model provides the dovetail groove turning tool. A mounting groove is formed in the front end of the cutter handle part; the blade comprises a connecting part and a cutting part connected to the front end of the connecting part; the connecting part is connected with the mounting groove; the shape of the cutting part is consistent with that of the dovetail groove; the supporting part is arranged at the front end of the knife handle part, and the blade is erected on the top of the supporting part. The shape of the cutting part is consistent with that of the dovetail groove, the dovetail groove with the required size can be machined at a time, tool marks cannot be formed in the dovetail groove, and the symmetry of the dovetail groove can be guaranteed; the number of tools is reduced, time for replacing the tools is saved, debugging time is shortened, machining efficiency is improved, and the problem that production cannot be achieved due to the fact that the number of tool magazines of a machine tool is insufficient is solved.

Description

Technical Field

[0001] This utility model relates to the field of turning tool technology, and in particular to a dovetail groove turning tool. Background Technology

[0002] A lathe tool is a cutting tool with a single cutting section used for turning. It is one of the most widely used cutting tools in machining. The working part of a lathe tool is what generates and handles chips, including the cutting edge, structures that break or coil the chips, spaces for chip removal or storage, and channels for cutting fluid.

[0003] Dovetail grooves are required to be machined in some parts, often using a lathe tool. Current technology requires two tools to machine symmetrical dovetail grooves, which results in tool marks and makes it difficult to guarantee dimensional accuracy such as symmetry, necessitating multiple adjustments. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.

[0005] To solve the above technical problems, this utility model provides a dovetail turning tool, comprising:

[0006] The handle has a mounting groove at the front end;

[0007] The blade includes a connecting part and a cutting part connected to the front end of the connecting part; the connecting part is connected to the mounting groove; the shape of the cutting part is consistent with the shape of the dovetail groove.

[0008] The support is located at the front end of the handle, and the blade rests on top of the support.

[0009] In one embodiment of this utility model, the rear end face of the connecting part is arc-shaped.

[0010] In one embodiment of this utility model, the support portion and the handle portion are connected at a rounded corner.

[0011] In one embodiment of this utility model, the front end face of the support portion is inclined inward from top to bottom.

[0012] In one embodiment of this utility model, the side of the support portion is inclined inward from top to bottom.

[0013] In one embodiment of this utility model, the two sides of the connecting portion are provided with beveled surfaces.

[0014] In one embodiment of this utility model, the rear end face of the handle is inclined and tilted inward from top to bottom.

[0015] In one embodiment of this utility model, the width of the front end of the handle is smaller than the width of the tail end.

[0016] In one embodiment of this utility model, the handle is detachably connected to the blade.

[0017] In one embodiment of this utility model, the back angle of the cutting part is 1°~3°.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] The dovetail lathe tool of this utility model has an insert connected to the front end of the tool holder, and the tail end of the cutting part of the insert is installed in the mounting groove. The front end of the cutting part is supported by a support part. The shape of the cutting part of this application is consistent with the shape of the dovetail groove, so that the dovetail groove of the required size can be machined in one go without forming tool marks in the dovetail groove, thus ensuring the symmetry of the dovetail groove. It reduces the number of tools, saves the time for changing tools, reduces the debugging time, improves the machining efficiency, and reduces the problem of production failure due to insufficient number of machine tool magazines. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the processing flow of the prior art in the background section;

[0022] Figure 2 This is a schematic diagram of the structure of a dovetail groove turning tool in a preferred embodiment of the present invention;

[0023] Figure 3 yes Figure 2 Top view of a dovetail cutting tool;

[0024] Figure 4 yes Figure 2 A partial schematic diagram of a dovetail turning tool (excluding the insert);

[0025] Figure 5 yes Figure 2 A schematic diagram of the insert structure in a dovetail lathe tool;

[0026] Figure 6 Is adopted Figure 2 A schematic diagram of the machining process using a dovetail groove turning tool;

[0027] Explanation of reference numerals in the accompanying drawings: 100, tool holder; 110, mounting groove; 120, rear end face of the tool holder;

[0028] 200. Blade; 210. Connecting part; 211. Arc shape; 212. Side of the connecting part; 220. Cutting part;

[0029] 300. Product to be processed; 310. Dovetail groove;

[0030] 400. Support part; 410. Front end face of the support part; 420. Side face of the support part;

[0031] 500. Rounded corner transition;

[0032] 600. First grooving cutter;

[0033] 700, Second Grooving Tool;

[0034] 800, knife marks. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0036] In the prior art, the two cutting tools are a first grooving tool 600 and a second grooving tool 700. The first grooving tool 600 is used to machine the inner part of the dovetail groove, and the second grooving tool 700 is used to machine the outer part of the dovetail groove. After the dovetail groove 310 is machined on the product 300, a tool mark 800 will appear at the junction of the first grooving tool 600 and the second grooving tool 700 in the dovetail groove 310.

[0037] Reference Figures 2-6 As shown, this utility model embodiment provides a dovetail turning tool, comprising:

[0038] The tool holder 100 has a mounting groove 110 at its front end; the tail end of the tool holder 100 is connected to the lathe tool holder (not shown in the figure), and the lathe drives the cutting tool to cut the workpiece 300.

[0039] The blade 200 includes a connecting portion 210 and a cutting portion 220 connected to the front end of the connecting portion 210; the connecting portion 210 is connected to the mounting groove 110; the shape of the cutting portion 220 is consistent with the shape of the dovetail groove 310.

[0040] A support portion 400 is located at the front end of the tool holder portion 100, and the cutting insert 200 rests on top of the support portion 400. The support portion 400 supports the cutting insert 200, preventing the cutting portion 220 from being suspended in the air, thus ensuring the stability of the connection between the cutting insert 200 and the tool holder portion 100. This prevents the connection between the cutting insert 200 and the tool holder portion 100 from loosening due to prolonged cutting, which would affect machining accuracy and quality, thereby improving machining quality and extending the service life of the cutting insert 200.

[0041] Specifically, in this embodiment, a cutting blade 200 is connected to the front end of the tool holder 100, and the tail end of the cutting part 220 of the cutting blade 200 is installed in the mounting groove 110. The front end of the cutting part 220 is supported by the support part 400. The shape of the cutting part 220 in this application is consistent with the shape of the dovetail groove 310, so that the dovetail groove 310 of the required size can be machined in one go without forming tool marks 800 in the dovetail groove 310, thus ensuring the symmetry of the dovetail groove 310. This reduces the number of tools, saves the time for changing tools, reduces the debugging time, improves the processing efficiency, and reduces the problem of production failure due to insufficient number of machine tool magazines.

[0042] Furthermore, the rear end face of the connecting portion 210 is arc-shaped 211. Correspondingly, this part in the mounting groove 110 is also arc-shaped. Specifically, the arc-shaped 211 design disperses the stress on the rear end face of the connecting portion 210, reduces stress concentration, and improves the service life of the blade 200; in addition, it enhances the aesthetics.

[0043] Furthermore, the corner of the connection between the support portion 400 and the handle portion 100 is rounded by 500. Specifically, this embodiment can reduce stress concentration at the connection between the handle portion 100 and the support portion 400, thereby improving the stability of the connection structure between the support portion 400 and the handle portion 100, improving the load-bearing capacity of the support portion 400, and thus improving the service life of the blade 200.

[0044] Furthermore, the front end face 410 of the support portion is inclined inward from top to bottom. Specifically, in this embodiment, the inclined front end face 410 of the support portion can achieve avoidance, preventing it from hitting the product 300 to be processed during the cutting process, thereby improving processing accuracy.

[0045] Furthermore, the side surface 420 of the support portion is inclined inward from top to bottom. Specifically, in this embodiment, the inclined side surface 420 of the support portion can achieve avoidance, preventing it from hitting the product 300 to be processed during the cutting process, thereby improving processing accuracy.

[0046] Furthermore, the side surface 212 of the connecting part is provided with a beveled surface. Specifically, the beveled surface design achieves clearance, avoids overcutting during cutting, and thus improves machining quality.

[0047] Furthermore, the rear end face 120 of the tool holder is inclined and tilted inward from top to bottom. Specifically, this embodiment can reduce weight, save materials, and lower costs on the one hand, and avoid the product 300 to be processed on the other.

[0048] Furthermore, the width B1 of the front end of the tool holder 100 is smaller than the width B2 of the rear end. Specifically, this embodiment can avoid the product 300 to be processed on the one hand, and reduce weight on the other.

[0049] In some embodiments, the cutting tool 200 is welded into the mounting groove 110 of the tool holder 100. Thus, after prolonged machining wear, if the cutting tool becomes worn and no longer meets machining requirements, the entire cutting tool needs to be replaced, resulting in high costs.

[0050] Furthermore, the tool holder 100 and the cutting tool 200 are detachably connected. For example, the tool holder 100 and the cutting tool 200 are connected by screws. Specifically, this embodiment facilitates the quick replacement of damaged cutting tools 200, improving machining efficiency. Thus, only the cutting tool 200 needs to be replaced after wear, eliminating the need to replace the entire cutting tool and reducing maintenance costs.

[0051] Furthermore, the back angle of the cutting part 220 is 1° to 3°.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A dovetail slot tool, characterized by: The utility model relates to a cutting tool, including: A shank part is equipped with the installation groove in the front end; The blade includes the connecting portion and the cutting portion connected in the front end of the connecting portion, the connecting portion is connected with the installation groove, and the shape of the cutting portion is consistent with the shape of the swallow-tail groove; Supporting part, set up in the front end of the shank part, the blade is set up on the top of the supporting part.

2. The dovetail slot tool bit of claim 1, wherein: The rear end surface of the connecting portion is arc-shaped.

3. The dovetail slot tool bit of claim 1, wherein: The supporting part and the shank part are connected with the position of the round angle transition.

4. The dovetail slot tool bit of claim 1, wherein: The front end surface of the supporting part is inclinedly arranged from top to bottom to the inside.

5. The dovetail slot tool bit of claim 1, wherein: The side surface of the supporting part is inclinedly arranged from top to bottom to the inside.

6. The dovetail slot tool bit of claim 1, wherein: Two side surfaces of the connecting portion are provided with bevel surfaces.

7. The dovetail tool according to claim 1, wherein: The rear end surface of the shank part is inclinedly arranged and is inclined from top to bottom to the inside.

8. The dovetail tool post according to claim 1, wherein: The width of the front end of the shank part is less than the width of the tail end.

9. The dovetail tool bit of claim 1, wherein: The shank part and the blade are detachably connected.

10. The dovetail tool post according to claim 1, wherein: The clearance angle of the cutting portion is 1-3 degrees.

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