CN209139598U - A kind of sectional die for connecting rod forging blank trimming - Google Patents

Abstract

The utility model discloses a kind of sectional dies for connecting rod forging blank trimming, are mainly used for the overlap flash excision of the connecting rod forging blank of various specifications model.Its main technical schemes: in upper die holder, connection convex mould base is fastened, punch-pin is installed on convex mould base；Connection die socket is fastened in lower die holder, cavity plate is installed on die socket, the both sides of lower die holder are connect with adjusting screw rod, and adjusting screw rod top connects stripper.The utility model passes through probationary certificate: temperature out of contior phenomenon when fundamentally overcoming blank forged piece trimming, reaches effectively guarantee blank forged piece technical quality, reduces cost, improve production efficiency, adapts to the demand produced in enormous quantities.

Description

A kind of sectional die for connecting rod forging blank trimming

Technical field

The utility model belongs to a kind of mold of connecting rod manufacture processing, is mainly used for the connecting rod blank forging of various specifications model The overlap flash of part is cut off.

Background technique

Connecting rod is one of core component of engine (see Fig. 1,2), is made of large and small head bore, right with advances in technology Technology acuracy, production efficiency of connecting rod ASSY etc. propose higher requirement.Therefore must to connecting rod manufacture tool set about into Row improves, and is just able to satisfy its requirement.Shaving die especially in connecting rod forging, problem is than more prominent, the company of each specification Bar needs a kind of special shaving die, and as the connecting rod manufacturer of profession, this is a high cost and manages troublesome big Problem；It is super that connecting rod easily generates biggish angularity (i.e. the depth of parallelism, the flatnesses of two planes above and below connecting rod) in die forging process Difference, blank is when by trimming, if temperature does not control in optimum range, the precision that just will receive mold changes, between mold The influence of the factors such as the variation of gap, stripper interference, then when often there is blank overlap and not cutting completely also, entire connecting rod blank It is just stuck on the upper punch (punch-pin) of mold, needs just take off using tools such as crowbars, connecting rod blank is caused to become because serious Shape is damaged and is scrapped；When the upper punch of shaving die is needed replacing because of the reason that cutting edge is damaged, by entire shaving die from setting It is standby above to disassemble replacement, entire shaving die to be debugged in equipment again after finishing changing, replacement process is time-consuming and laborious, by In overlong time, in connecting rod forging blank trimming, temperature is impossible to control in optimum range (because being that assembly line is made Industry, every procedure are both needed to complete in certain high temperature range, and steps of manufacturing blanks caused by previous process will cool down more), make The technology quality index of blank is difficult to reach, while also bringing that production efficiency is relatively low, is not suitable with the mass production of connecting rod.

Utility model content

The main technical problems to be solved in the utility model and purpose are: being deposited according to current connecting rod forging blank shaving die Deficiency, design a kind of new sectional die for connecting rod forging blank trimming, fundamentally blank forged piece overcome to cut Temperature out of contior phenomenon when side reaches effectively guarantee workpiece technical quality, improves production efficiency, adapts to produce in enormous quantities Demand.

The main technical schemes of the utility model: the mold includes upper die holder, convex mould base, stripper, punch-pin, cavity plate, tune Screw rod, die socket, lower die holder, screw, nut are saved, specific structure: in the middle position of upper die holder, connecting punch-pin with screws tighten Seat, convex mould base install punch-pin by screw；In lower die holder, die socket is connected with screws tighten, is installed on die socket by screw Cavity plate is connect by threaded hole with adjusting screw rod on the both sides of lower die holder, and adjusting screw rod top connects stripper by nut.

The utility model is proved by practical application: purpose of design is fully achieved, the mould structure is simple, and it is easy to operate, it is fixed Level is true；Die punch replacing construction was reduced to 3 minutes by original 20 minutes, obtained temperature when connecting rod forging blank trimming Effective control has been arrived, the technology quality index of connecting rod forging blank is satisfied；By replacing parts peculiar, can be used to more The trimming of the connecting rod forging blank of kind of specification, without each specification Machining of Connecting Rod will a kind of special shaving die, mould Tool manufacturing expense has saved 3/4ths or more, while also significantly improving production efficiency, meets the demand of mass production.

Detailed description of the invention

With reference to the accompanying drawing, specific embodiment of the present utility model is described in further detail.

Fig. 1 is the main view of connecting rod forging blank.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the main view of the utility model.

Fig. 4 is the main view of the utility model convex mould base 2.

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

Fig. 6 is the top view of the utility model stripper 3.

Fig. 7 is the main view of the utility model punch-pin 4.

Fig. 8 is the bottom view of Fig. 7.

Fig. 9 is the main view of the utility model cavity plate 5.

Figure 10 is the top view of Fig. 9.

Specific embodiment

Referring to Fig. 3, be illustrated to the main technical schemes of the utility model: the utility model includes upper die holder 1, punch-pin Seat 2(see Fig. 4,5), stripper 3(see Fig. 6), punch-pin 4(see Fig. 7,8), cavity plate 5(see Fig. 9,10), adjusting screw rod 6, die socket 7, Specific structure: lower die holder 8, screw 9, nut 10 in the middle position of upper die holder 1, fasten connection convex mould base 2, punch-pin with screw 9 Seat installs punch-pin 4 by screw 9；In lower die holder 8, connection die socket 7 is fastened with screw 9, is installed on die socket by screw recessed Mould 5 is connect by threaded hole with adjusting screw rod 6 on the both sides of lower die holder 8, and adjusting screw rod top connects stripper by nut 10 3。

Referring to Fig. 3, the specific fit dimension of the punch-pin 4 and cavity plate 5, shaving die design routinely is given.

Reference Fig. 3, the operation of the utility model:, the mold is mounted on the workbench of common punch press equipment, carry out Simple debugging；, the connecting rod forging blank A to trimming is put into female die of die 5；Start to carry out excision overlap B.Work In, when vulnerable part punch-pin 4 needs replacing, just directly unloaded exchange.

Referring to Fig.1,2, the utility model only need to be according to the center carpenters square cun L of connecting rod forging blank₁, replace corresponding punch-pin 4 and cavity plate 5, it can be used to the trimming of the connecting rod forging blank of plurality of specifications, improve efficiency, reduce die cost.

It is a variety of connecting rod blank forgings such as H16, B15D, G10C, BYD473Q, EG01T that the utility model, which has been used for specification, at present Part trimming, effect are preferable.

Claims (1)

1. a kind of sectional die for connecting rod forging blank trimming, it is characterised in that: include upper die holder (1), convex mould base (2), stripper (3), punch-pin (4), cavity plate (5), adjusting screw rod (6), die socket (7), lower die holder (8), screw (9), nut (10), specific structure is, in the middle position of upper die holder (1), to fasten connection convex mould base (2) with screw (9), convex mould base passes through spiral shell Follow closely (9) installation punch-pin (4)；In lower die holder (8), connection die socket (7) is fastened with screw (9), is installed on die socket by screw Cavity plate (5) is connect by threaded hole with adjusting screw rod (6) on the both sides of lower die holder (8), and adjusting screw rod top passes through nut (10) It connects stripper (3).