CN208374296U - A kind of combined type forming cutter - Google Patents

Abstract

The utility model discloses a kind of combined type forming cutters, including broach shell and knife core.Broach shell includes cutter hub, and one end of cutter hub is equipped with the first knife handle, and the other end is equipped with mounting groove and blade, and the bottom of the mounting groove is equipped with the suit hole of circular in cross-section on cutter hub.Knife core includes drill bit, the second knife handle that one end of drill bit is successively arranged suit portion and matches with suit hole, chamfered cutting edge is equipped between drill bit and suit portion, chip space on drill bit extends to suit portion, is set in suit portion there are two mating surface, the two mating surfaces correspond to each other, second knife handle is loaded on suit hole, suit portion and mounting groove cooperate, and two mating surfaces are bonded with the two sides of mounting groove respectively, and cutter hub is equipped with the lock-screw for locking the second knife handle.The combined type forming cutter of the utility model has the characteristics that high in machining efficiency, flexible and convenient to use and processing is stable.

Description

A kind of combined type forming cutter

Technical field

The utility model belongs to cutting-tool engineering field, is related to a kind of forming cutter for machining, more particularly to a kind of Combined type forming cutter.

Background technique

During processing to workpiece, general each process processes knife using one, therefore most of mechanical Factory generally requires to purchase a variety of cutters, and is processed using a variety of cutters by pair of workpieces, and cumbersome, process velocity is slow, Production efficiency is low.

Utility model content

The purpose of the utility model is to provide combined type a kind of high in machining efficiency, flexible and convenient to use and that processing is stable at Type knife.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of combined type forming cutter, including Broach shell and knife core, the broach shell include cutter hub, and one end of the cutter hub is equipped with the first knife handle, and the other end is equipped with mounting groove and knife Piece, the bottom of the mounting groove is equipped with the suit hole of circular in cross-section on the cutter hub, and the knife core includes drill bit, the brill The second knife handle that one end of head is successively arranged suit portion and matches with the suit hole, sets between the drill bit and the suit portion There is chamfered cutting edge, the chip space on the drill bit extends to the suit portion, is set in the suit portion there are two mating surface, this two A mating surface corresponds to each other, and second knife handle is loaded on the suit hole, and the suit portion and the mounting groove cooperate, and two A mating surface is bonded with the two sides of the mounting groove respectively, and the cutter hub is equipped with the lock for locking second knife handle Tight screw.

Further, second knife handle is equipped with locking face, and the cutter hub is equipped with locking screw holes, the locking screw holes It is connected with the suit hole, the lock-screw is set in the locking screw holes, tightens the locking screw when lock-screw One end of nail compresses the locking face, so that the knife core is lock onto the cutter hub.

Further, the locking screw holes are M5 screw hole.

Further, the circular in cross-section of the cutter hub.

Further, the circular in cross-section of first knife handle.

The utility model the utility model has the advantages that the utility model combined type forming cutter, knife core can drilling and chamfering, on broach shell Blade can be processed end face, therefore can disposably realize drilling, chamfering and processing end face, shorten process time, improve plus Work efficiency rate；The combined type forming cutter is split type structure, needs to freely form using different broach shells and knife core according to processing Forming cutter, it is flexible and convenient to use, and when knife core or broach shell damage, be not required to it is whole forming cutter is replaced, save cutter at This；The cutter hub plane of the suit portion of knife core and broach shell cooperates, and knife core is enabled to be stably fixed to broach shell, and knife core is not easy when processing Deflection is generated, processing stability is improved.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the combined type forming cutter of the utility model embodiment.

Fig. 2 is the structural schematic diagram of the broach shell of the utility model embodiment.

Fig. 3 is the structural schematic diagram of the knife core of the utility model embodiment.

Fig. 4 is the cross-sectional view of A-A in Fig. 3.

Fig. 5 is the cross-sectional view of B-B in Fig. 3.

Description of symbols:

Broach shell 1, knife core 2, lock-screw 3；

First knife handle 11, cutter hub 12, blade 13, suit hole 14, mounting groove 15, locking screw holes 16；

Second knife handle 21, locking face 22, suit portion 23, mating surface 24, chamfered cutting edge 25, drill bit 26, chip space 27.

Specific embodiment

Below in conjunction with the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts Every other embodiment, fall within the protection scope of the utility model.

As shown in Figure 1, the combined type forming cutter of the present embodiment, which includes broach shell 1 and knife core 2.

Referring to Fig. 2, broach shell 1 includes the cutter hub 12 of circular in cross-section, and the right end of cutter hub 12 is machined with circular in cross-section The first knife handle 11, the left end of cutter hub 12 is machined with mounting groove 15 and the blade 13 for processing end face, the both ends of mounting groove 15 The periphery of cutter hub 12 is extended respectively into, the bottom of mounting groove 15 is machined with the suit hole 14 of circular in cross-section on cutter hub 12. Referring to Fig. 3, knife core 2 includes drill bit 26, the right end of drill bit 26 be successively machined with suit portion 23 and match with suit hole 14 second Knife handle 21 is machined with chamfered cutting edge 25 between drill bit 26 and suit portion 23, the chip space 27 on drill bit 26 extends to suit portion 23. Referring to Fig. 5, in suit portion 23, there are two mating surface 24, the two mating surfaces 24 to correspond to each other for processing, and the second knife handle 21 is loaded on set Hole 14 is filled, suit portion 23 and mounting groove 15 cooperate, and two mating surfaces 24 are bonded with the two sides of mounting groove 15 respectively, set on cutter hub 12 There is the lock-screw 3 for locking the second knife handle 21, knife core 2 is lock on broach shell 1 by lock-screw 3.

Preferred design is machined with a locking face 22 referring to Fig. 3 and Fig. 4 on the second knife handle 21, referring to Fig. 2, cutter hub 12 There are two locking screw holes 16, locking screw holes 16 are M5 screw hole for upper processing, and locking screw holes 16 and suit hole 14 are connected, two locking screws Nail 3 is set in two locking screw holes 16, tightens two lock-screws 3, and one end of lock-screw 3 compresses locking face 22, from And knife core 2 is lock onto cutter hub 12.

The combined type forming cutter of the utility model, knife core can drilling and chamfering, end face can be processed in the blade on broach shell, because This can disposably realize drilling, chamfering and processing end face, shorten process time, improve processing efficiency；Combined type molding Knife is split type structure, is needed to freely form forming cutter using different broach shells and knife core according to processing, flexible and convenient to use, And knife core or broach shell be when damaging, be not required to it is whole forming cutter is replaced, save the cost of cutter；The suit portion of knife core and broach shell The cooperation of cutter hub plane, enable knife core to be stably fixed to broach shell, knife core is not likely to produce deflection when processing, improves processing surely It is qualitative.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (5)

1. a kind of combined type forming cutter, which is characterized in that including broach shell (1) and knife core (2), the broach shell (1) includes cutter hub (12), one end of the cutter hub (12) is equipped with the first knife handle (11), and the other end is equipped with mounting groove (15) and blade (13), the knife The bottom of the mounting groove (15) is equipped with the suit hole (14) of circular in cross-section on body (12), and the knife core (2) includes drill bit (26), the second knife handle that one end of the drill bit (26) is successively arranged suit portion (23) and matches with the suit hole (14) (21), chamfered cutting edge (25) are equipped between the drill bit (26) and the suit portion (23), the chip space on the drill bit (26) (27) the suit portion (23) is extended to, is set on the suit portion (23) there are two mating surface (24), the two described mating surfaces (24) it corresponds to each other, second knife handle (21) is loaded on the suit hole (14), the suit portion (23) and the mounting groove (15) cooperate, two mating surfaces (24) are bonded with the two sides of the mounting groove (15) respectively, and the cutter hub (12) is equipped with For locking the lock-screw (3) of second knife handle (21).

2. a kind of combined type forming cutter according to claim 1, which is characterized in that second knife handle (21) is equipped with lock Tight face (22), the cutter hub (12) are equipped with locking screw holes (16), and the locking screw holes (16) and the suit hole (14) are connected, The lock-screw (3) is set in the locking screw holes (16), tightens the lock-screw (3) when the lock-screw (3) One end compresses the locking face (22), so that the knife core (2) is lock onto the cutter hub (12).

3. a kind of combined type forming cutter according to claim 1 or 2, which is characterized in that the locking screw holes (16) are M5 Screw hole.

4. a kind of combined type forming cutter according to claim 1, which is characterized in that the cross section of the cutter hub (12) is in circle Shape.

5. a kind of combined type forming cutter according to claim 1, which is characterized in that the cross section of first knife handle (11) It is rounded.