CN201168795Y - Machine-clamped cut-off knives with re-weldable carbide inserts - Google Patents

Abstract

The utility model relates to a lathe tool knife, in particular to a machine clip cutting knife which can repeatedly weld hard alloy blades. It includes a blade, a cutter body, and a pressing plate. The cutter body is a cuboid, one edge of which is a boss structure, and the edge corresponding to the edge is a rectangular slot structure. The pressure plate is a cuboid, and one side is a boss structure. Welded on the cuboid knife block, the knife block is embedded in the rectangular slot formed by the pressure plate and the knife body. Compared with the prior art, the utility model has the beneficial effects of simple structure, convenient loading and unloading, and easy operation. Because the blade can be welded repeatedly, the manufacturing cost can be reduced by more than 40%, and the economic value is very considerable.

Description

Machine-clamped cut-off knives with re-weldable carbide inserts

Technical field:

The utility model relates to a metal cutting knife for a lathe, in particular to a machine clip cutting knife which can repeatedly weld hard alloy blades.

Background technique:

The cut-off knife is a cutting tool commonly used on ordinary lathes and CNC lathes. At present, the cutting knives used on lathes are: integral type, machine clip type and welding type. The integral cutting knife has low production efficiency and is generally rarely used. Because the clamped part is relatively small and the rigidity is poor, the machine-clamped cutting-off knife will crack if there is a slight vibration, and the service life of the blade is very low. It is generally used on CNC machine tools and rarely used on ordinary lathes. The head of the welded cutting knife is long and narrow, has low rigidity, poor working conditions, and is easy to wear and crack, so the life of the knife is low. When the blade can no longer be used, the whole knife is scrapped. Therefore waste is bigger.

Invention content:

The technical problem to be solved by the utility model is to provide a machine-clamp cutting knife that can repeatedly weld the blade on a knife block, and is convenient for disassembly and blade grinding.

The technical solution adopted by the utility model to solve the technical problem is: a machine-clamped cutting knife that can repeatedly weld cemented carbide blades, including a blade, a knife body, and a pressure plate. The knife body is a cuboid, and one edge is a convex platform Structure, the edge corresponding to the edge is a rectangular slot structure, the pressure plate is a cuboid, one side is a boss structure, the blade is welded on the cuboid knife block, and the knife block is embedded in the rectangular slot formed by the pressure plate and the knife body.

Compared with the prior art, the utility model has the beneficial effects of simple structure, convenient loading and unloading, and easy operation. Because the blade can be welded repeatedly, the manufacturing cost can be reduced by more than 40%, and the economic value is very considerable.

Description of drawings:

Fig. 1 is a front structural schematic diagram of the utility model.

Fig. 2 is a side view structural diagram of the utility model.

Fig. 3 is a sectional view of A-A in Fig. 2 .

Figure 4 is a schematic diagram of the installation of the utility model.

Among the figure: supporting plate 1, blade 2, pressing plate 3, cutter body 4, cutter block 5, spacer 6, compression screw 7, lathe tool rest 8.

Detailed ways:

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

A machine-clamp cutting knife that can repeatedly weld cemented carbide blades. The knife body 4 is a cuboid, one edge of which is a convex structure, and the edge corresponding to the edge is a rectangular slot structure. The pressure plate 3 is a cuboid. The side is a boss structure, the blade 2 is welded on the cuboid knife block 5, and the knife block 5 is embedded in the rectangular slot formed by the pressure plate 3 and the knife body 4.

In order to increase the bearing force of the blade 2 during cutting and prevent it from cracking, a supporting plate 1 is provided under the front end of the cutter body 4 described in this embodiment.

The using method of the utility model is briefly described as follows:

Clamped cut-off knives with re-weldable carbide inserts do not require all parts to be secured when not in use. When in use, first place its parts according to the installation position, put them on the corresponding position of the lathe tool rest 8, and then use the first two compression screws 7 on the lathe tool rest 8 to compress the pressure plate 3, thereby pressing the knife block 5 It is fixed in the cutter body 4, and the cutter body 4 is also fixed on the lathe tool rest 8 simultaneously.

During the cutting process, when the blade 2 is worn to a certain extent and needs to be re-sharpened, the compression screw 7 on the lathe tool rest 8 is loosened, and the knife block 5 can be removed for sharpening. When sharpening repeatedly, blade 2 can no longer be cut or when blade 2 is broken, blade 2 and the following cutter block 5 parts are removed, and a new blade is re-welded at the cutter block 5 front end, thereby becoming a new cutting knife. According to the size of the spare length of the knife block 5, a knife block 5 can repeat the welding of the blade about 5 times.

Claims (2)

1, a kind of machine folder cutoff tool that repeats to weld carbide chip, comprise blade, cutter hub, pressing plate, it is characterized in that: cutter hub is a cuboid, the one seamed edge is boss structure, with the rectangular draw-in groove structure of this rib corresponding edge, pressing plate is a cuboid, and a side is boss structure, blade is welded on the cuboid cutter piece, and the cutter piece embeds in the rectangle draw-in groove of pressing plate and cutter hub formation.

2, the machine folder cutoff tool that repeats to weld carbide chip according to claim 1 is characterized in that being provided with supporting plate below its front end of cutter hub.

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