Broaching tool
A technology of cutting tools and tool holders, which is applied in the direction of broaching tools, broaching machines, manufacturing tools, etc. It can solve the problems of unclear embedding depth direction guidance, laborious pulling handles, and inconvenient loading and unloading, etc., so as to achieve convenient and quick adjustment and prevent knife Clip deflection, stable and reliable structure
Inactive Publication Date: 2015-02-25
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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Problems solved by technology
[0005] The Chinese patent document with the publication number CN203448764U discloses an insert broach with adjustable embedding depth, which can realize the adjustment of embedding depth, but this structure has certain defects: the blade is easy to deflect; when the cutting force is large, The pressing force is not enough; at the same time, when loading and unloading the blade, it is very laborious to pull the handle, and the loading and unloading is not convenient enough; in addition, during the adjustment process, the orientation of the embedded depth direction is not clear
Method used
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Figure 1 to Figure 5 An embodiment of the broaching tool of the present invention is shown, the broaching tool includes a cutter body 1, a tool holder 2, a blade 3 and a pressing block 4, the cutter body 1 is provided with a mounting groove 11, and the pressing block 4 passes through the pressing block The fastener 5 is installed in the installation groove 11, the tool holder 2 is installed in the installation groove 11 and pressed by the pressing block 4, the blade 3 is installed on the tool holder 2 through the blade fastener 6, and the installation groove 11 includes The first side positioning surface 111, the lower positioning surface 112, the side space-avoiding surface 113, the following space-avoiding surface 114 and the second side positioning surface 115, the first side positioning surface 111 and the lower positionin...
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The invention discloses a broaching tool which comprises a tool body, a tool holder, a tool blade and a pressing block. An installation groove is formed in the tool body. The installation groove comprises a first side positioning face, a lower positioning face, a side receding face, a lower receding face and a second side positioning face. The first side positioning face and the lower positioning face are matched with the first side face and the bottom face of the tool holder respectively. The side receding face, the lower receding face and the second side positioning face are matched with the first pressing block side face, the pressing block bottom face and the second pressing block side face of the pressing block respectively. The second side face is matched with the first pressing block side face. A receding interval H1 is formed between the lower receding face and the pressing block bottom face. A receding interval H2 is formed between the lower positioning face and the bottom face. A through hole is formed in the bottom face. An adjusting hole corresponding to the through hole is formed in the lower positioning face. The broaching tool further comprises an adjusting screw connected with the tool holder. The adjusting screw penetrates through the through hole to be matched with the adjusting hole. An acute angle alpha is formed between the first pressing block side face and the second pressing block side face. The broaching tool has the advantages of being stable in positioning, capable of rapidly and conveniently adjusting rise per tooth and the like.
Description
technical field [0001] The invention relates to the field of metal cutting, in particular to a broaching tool. Background technique [0002] The broach is a forming tool used for broaching. There are multiple rows of teeth on the surface of the broach. The size and shape of the multiple rows of teeth increase and change sequentially from the cutting end to the cutting end. The feeding movement of the broach is determined by the The amount of tooth lift of the cutter tooth is completed. [0003] In the prior art, there are mainly two kinds of broaches: integral type and inlaid type: the integral type broach is generally directly processed by tool steel or high-speed steel, and its red hardness is not enough, the processing efficiency is low, and there are low processing accuracy and use. Problems such as low service life and difficult maintenance; the mosaic broach is made of medium carbon steel or medium carbon alloy steel as the body, and is inlaid with alloy knife grains....
Claims
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IPC IPC(8): B23D43/00
Inventor 王春秀王云志彭震吴敏杨红星
Owner ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD