CN201333560Y

CN201333560Y - Broaching clamp for processing fractured connecting rods

Info

Publication number: CN201333560Y
Application number: CNU2008202289340U
Authority: CN
Inventors: 周洋; 邓伟; 杨建辉; 韩海平
Original assignee: YUNNAN XIYI INDUSTRY CO LTD
Current assignee: YUNNAN XIYI INDUSTRY CO LTD
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2009-10-28
Anticipated expiration: 2018-12-19

Abstract

The utility model discloses a broaching clamp for processing fractured connecting rods, which is mainly used for the broaching of a fractured connecting rod splitting notch and can also be used for other similar broaching. The main technical characteristics are as follows: an upper positioning plane and a lower positioning plane are arranged at the centering hole of a clamp body, and a symmetrical scrap containing through groove is respectively and additionally arranged on the two planes. The practical application confirms that the utility model radically overcomes the clamping and blocking of broken scrap iron for the centering hole of the clamp body and a broaching tool, eliminates the phenomena that the clamp body and the broaching tool are worn, and the workpiece surface is easy to be damaged, effectively improves the service life and work efficiency of the broaching clamp and the broaching tool, and meets the requirements of the mass production of products.

Description

A kind of drawing of usefulness of fractured connecting rod processing used anchor clamps

One, technical field

The utility model belongs to a kind of anchor clamps of machinery broaching processing, is mainly used in the broaching processing of fractured connecting rod splitter, also can be used for other similarly broaching processing.

Two, background technology

Fractured connecting rod has been widely used in engine abroad, and domestic fractured connecting rod also begins making and using, the fractured connecting rod splitter as shown in Figure 1, A is a crank pin end pore, B is the splitter in the hole.The processing of fractured connecting rod splitter adopts drawing shown in Fig. 2,3 to use anchor clamps, and it is made up of clamp body 1, apotting spindle 2, assist location axle 3.Apotting spindle 2 location of during work the microcephaly hole of fractured connecting rod 5 being packed into, assist location axle 3 restriction fractured connecting rods 5 rotate, broaching cutters 4 penetrates the big end hole of fractured connecting rod 5 and the internal point D of clamp body 1, the handle of broaching cutters is connected with the broaching machine main shaft by pin, to draw with the open pore of anchor clamps by two symmetries, be installed on the broaching machine with bolt, under the traction of broaching machine main shaft, carry out the cracking groove cutting is processed.The less investment of this method equipment, technology are simple, and processing cost is low.But in reality processing, also increase thereupon of increase bushel iron bits along with cutter allowance, part bushel iron bits are taken away by broaching cutters 4 and cutting fluid, another part bushel iron bits then rest between the internal point D and broaching cutters 4 of clamp body 1, form jam, cause anchor clamps and broaching tool the difform trace that draws to occur, influenced the easy motion of broaching tool, cause fractured connecting rod splitter passing rate of processing on the low side, do not meet batch production requirement; Obviously shortened the service life of drawing with anchor clamps and broaching tool, fractured connecting rod big end hole surface is damaged sometimes, and product quality is obviously descended.

Three, utility model content

The main technical problems to be solved in the utility model and purpose are: according to the existing defective that in use exists with anchor clamps of drawing, provide newly drawing after a kind of improve to use anchor clamps, fundamentally overcome the bushel iron bits to the jam between clamp body and the broaching cutters, eliminate anchor clamps and broaching tool is worn, the flimsy phenomenon of surface of the work, improve and draw with the service life of anchor clamps and broaching tool and the operating efficiency of this procedure.

Main technical schemes of the present utility model is: at the internal point place of clamp body, two plane of orientations are up and down arranged, respectively set up the appearance bits groove of a symmetry on these two planes.

The utility model proves by practical application: in use, the bushel iron bits obtain mediation to the jam between clamp body and the broaching cutters, anchor clamps and broaching tool are easy to wear, the easy impaired phenomenon of surface of the work is overcome, obviously prolonged the service life of drawing with anchor clamps and broaching tool, improve the quality of product and the operating efficiency of this procedure effectively, met batch production requirement.

Four, description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is done to describe in further detail.

Fig. 1 is the schematic diagram of fractured connecting rod splitter.

Fig. 2 is existing drawing with the front view under the clamp working-station.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the front view under the utility model duty, and except that describing locating surface C and holding the bits groove E, other structure is identical with Fig. 2.

Fig. 5 is the left view of Fig. 4.

Fig. 6, the I-I that is Fig. 5 is to cutaway view.

Five, the specific embodiment

With reference to Fig. 4,5,6, main technical schemes explanation of the present utility model: at the internal point D place of clamp body 1, two plane of orientation C are up and down arranged, on these two planes, respectively set up the appearance bits groove E of a symmetry.

With reference to Fig. 6, in holding bits groove E, scope 10～15mm of size L; Scope 2～3.5mm of size S.

With reference to Fig. 4,5, the utility model uses the structure and the operation principle of anchor clamps basic identical with existing drawing.Different is, hold bits groove E owing to structurally increased, former internal point D that rests on clamp body 1 and the bits of the bushel iron between the broaching cutters 4 fall into and hold bits groove E and be discharged from, jam can not form, broaching cutters 4 is able to easy motion and finishes process, draws with anchor clamps and broaching tool and surface of the work and is easily drawn the bad phenomenon of wearing and tearing to eliminate naturally.

Claims

1, a kind of drawing of usefulness of fractured connecting rod processing used anchor clamps, contain clamp body (1), apotting spindle (2), assist location axle (3), it is characterized in that: the internal point (D) in clamp body (1) is located, two plane of orientations (C) are up and down arranged, on these two planes, respectively set up the appearance bits groove (E) of a symmetry.

2, drawing of usefulness of fractured connecting rod processing according to claim 1 used anchor clamps, it is characterized in that: in holding bits grooves (E), and the scope 10～15mm of size (L), the scope 2～3.5mm of size (S).