A kind of tooth plate fine blanking die improving angle of collapsingTechnical field
The utility model is related to a kind of tooth plate fine blanking die, specifically a kind of tooth plate fine blanking die improving angle of collapsing,Belong to tooth plate fine blanking die technical field.
Background technology
Fine blanking die is directly to go out that cross section quality is good on plate, the diel of the high part of dimensional accuracy, is applicable inIn the production of high-volume high-precision plate part.Currently, in automobile making, household electrical appliance obtain extensively in close instrument manufacturingUsing.
In the prior art, fine blanking die is easy to form larger angle of collapsing in the teeth portion of tooth plate, angle of collapsing is general when producing tooth plateIn 20-30% or more, it is difficult to meet the product requirement of most fines.Tooth plate can be allowed without angle of collapsing using shaving technique, but need to adoptWith continuous mould, the complexity and manufacturing cost of mold design are improved, stock utilization is reduced.
Invention content
In place of the purpose of this utility model is to overcome above-mentioned deficiency, to provide a kind of tooth plate fine blanking die improving angle of collapsingTool can reduce the angle of collapsing generated in the molding of tooth plate fine, improve the molding quality of tooth plate fine.
According to technical solution provided by the utility model, it is a kind of improvement collapse angle tooth plate fine blanking die include tooth plate molding it is recessedMould and reinforcement gear ring, it is characterized in that：It is equipped in tooth plate molding concave die and is used for the molding tooth plate shaping mold cavity of tooth plate, tooth plate shaping mouldChamber one end is equipped with die cavity teeth portion；It is equipped with towards die cavity teeth portion position edge in molding concave die upper surface and reinforces gear ring, reinforce gear ringIncluding gear ring ontology, gear ring ontology is equipped with denticle towards gear ring side is reinforced, and denticle coincide with die cavity teeth portion tooth profile.
Further, reinforce gear ring and be equipped with a circle gear ring flange along edge.
Further, the thickness range for reinforcing gear ring is process tooth plate thickness 20 ~ 30%.
Compared with the prior art the utility model has the following advantages：
The utility model is simple in structure, compact, reasonable, is arranged in mold teeth portion and reinforces gear ring, can reduce tooth plate fineThe molding quality of tooth plate fine is improved at the angle of collapsing generated in molding.
Description of the drawings
Fig. 1 is the utility model stereogram.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model vertical view.
Reference sign：1- tooth plates molding concave die, 2- tooth plates shaping mold cavity, 3- die cavitys teeth portion, 4- reinforce gear ring, 5- teethEnclose ontology, 6- denticles, 7- gear ring flange.
Specific implementation mode
The utility model will be further described in conjunction with the embodiment in attached drawing below：
As shown in Fig. 1 ~ 3, the utility model includes mainly tooth plate molding concave die 1 and reinforcement gear ring 4, tooth plate molding concave die 1Interior be equipped with is used for the molding tooth plate shaping mold cavity 2 of tooth plate, and 2 one end of tooth plate shaping mold cavity is equipped with die cavity teeth portion 3.
It is equipped with towards 3 position edge of die cavity teeth portion in 1 upper surface of molding concave die and reinforces gear ring 4, it includes gear ring to reinforce gear ringOntology 5, gear ring ontology 5 are equipped with denticle 6 towards 4 side of gear ring is reinforced, and denticle 6 coincide with 3 tooth profile of die cavity teeth portion so that plateMaterial enters die cavity teeth portion 3 when rushing in die cavity teeth portion 3 along denticle 6.
The thickness range for reinforcing gear ring 4 is process tooth plate thickness 20 ~ 30%.
The reinforcement gear ring 4 is equipped with a circle gear ring flange 7 along edge.
The operation principle of the utility model is：In tooth plate forming process, plate is placed on concave-convex mould holder, punch-pin bandMovable plate material enters in the tooth plate shaping mold cavity of cavity plate, and plate, which initially enters, to be reinforced in gear ring, reinforces gear ring by plate to die cavity toothIt is squeezed at portion, to make product in deformation process, has enough materials that can add to teeth portion and collapse at angle, reduce to reachIt collapses the purpose at angle.