CN208600576U - A kind of two times punch mold for the forming of zigzag shape beam piece - Google Patents

Abstract

The utility model discloses a kind of two times punch molds for the forming of zigzag shape beam piece, comprising: offers the cavity plate that groove is adapted with zigzag shape beam piece shape, and equipped with the punch-pin for being adapted convex block with cavity plate upper groove；Along the two sides of the length direction of convex block on the punch-pin, it is equipped with the square muscle to prevent process part processing from generating rebound in punching press；The length of side's muscle is 15 ± 0.05mm, and the height of square muscle is 12 ± 0.05mm, and the angle R on square muscle is R3 fillet.The utility model, which has the advantages that, greatly improves Product Precision cost, completely solves the generation of zigzag shape beam piece side wall cambered surface situation, and the punching press difficulty and springback compensation for reducing mold repair a die number.

Description

A kind of two times punch mold for the forming of zigzag shape beam piece

Technical field

The utility model relates to zigzag shape beam piece stamping dies, are used for zigzag shape beam class more specifically to one kind The two times punch mold of part forming.

Background technique

The manufacturing process of part is the specific implementation process of forming parts technique, and all sheet metal components of automobile are all by certain Forming technology realize actual production.

In the prior art, zigzag shape beam-like part (see figure 1) is usually from being shaped by direct binder or directly Draw forming is connect to complete actual production, unavoidably needs to use zigzag shape beam-like part in automobile metal plate work.Due to tradition Straight forming technique, the cambered surface that feature side-wall generates is serious, and product size is unable to reach entrucking requirement.

Therefore, it is necessary to repeatedly rectify and improve mold, causing to repair a die, the period is long, and processing cost is larger, and debugging cost is also very big, in vehicle Body trial-production industry, which has had no advantage, to be sayed.

Utility model content

In view of the above defects of the prior art, the purpose of the utility model is to provide one kind to be used for zigzag shape beam class The two times punch mold of part forming, the method that can effectively solve the problem that zigzag shape beam piece Product Precision and fabrication cycle.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of two times punch mold for the forming of zigzag shape beam piece, comprising: offer and zigzag shape beam piece shape It is adapted the cavity plate of groove, and equipped with the punch-pin for being adapted convex block with cavity plate upper groove；

Along the two sides of the length direction of convex block on the punch-pin, it is equipped with to prevent process part processing from generating rebound in punching press Square muscle；

The length of side's muscle is 15 ± 0.05mm, and the height of square muscle is 12 ± 0.05mm, and the angle R on square muscle is R3 fillet.

In the above technical solution, a kind of secondary punching for the forming of zigzag shape beam piece provided by the utility model Compression mould effectively solves product side wall and the phenomenon that cambered surface occurs, improves product size precision, and part production week is greatly saved Phase, the punching press difficulty and springback compensation for reducing mold repair a die number.

Detailed description of the invention

Fig. 1 is the schematic diagram of zigzag shape beam piece；

Fig. 2 is using the precedence diagram to pre-bend in advance before the utility model two times punch mold；

Fig. 3 is the schematic diagram of formation process part after pre-bending in Fig. 2；

Fig. 4 is the schematic diagram of the utility model two times punch mold；

Fig. 5 is the schematic diagram of muscle above the utility model two times punch mold convex mould；

Fig. 6 is the schematic cross-section of square muscle in the utility model two times punch mold.

Specific embodiment

The technical solution of the utility model is further illustrated with reference to the accompanying drawings and examples.

Incorporated by reference to shown in Fig. 2 to Fig. 3, before using the utility model two times punch mold, sheet metal component is carried out in advance pre- The technique of bending, comprising the following steps:

1) firstly, metal plate is pre-bended out product general shape by numerical control bender, bending sequence is as follows:

1.1) first by the upward bending in metal plate left end end；

1.2) by the upward bending in metal plate right end end；

1.3) by left position downward bending close on metal plate middle section；

1.4) finally, by right end position downward bending close on metal plate middle section；

Numerical control bender point carries out bending to metal plate by above-mentioned 4 times, forms the process part processing of zigzag shape beam piece；

2) process part processing is placed in stamping die again, carries out two times punch forming, obtains the final of zigzag shape beam piece Product.

Preferably, the shaping amount of process part processing and final products controls within 3mm in the step 1).

Preferably, the process part processing depth is consistent with final products depth or < 2mm is advisable, the angle R on process part processing It is 2~5mm bigger than the angle R on final products to be advisable.

Preferably, in the step 2), the side's of being provided with muscle in stamping die, rebound control when to two times punch forming System.

Incorporated by reference to shown in fig. 4 to fig. 6, the utility model provides a kind of two times punch for the forming of zigzag shape beam piece Mold, comprising: offer the cavity plate 1 for being adapted groove 11 with zigzag shape beam piece shape, and be equipped with and 1 upper groove of cavity plate, 11 phase It is adapted to the punch-pin 2 of convex block 21；

Preferably, being equipped with along the two sides of the length direction of convex block 21 to prevent process part processing in punching press on the punch-pin 2 When generate rebound square muscle 22；

Preferably, the length of side's muscle 22 is 15 ± 0.05mm, the height of square muscle 22 is 12 ± 0.05mm, square muscle The angle R on 22 is R3 fillet.

In conclusion the zigzag shape beam piece produced by the utility model, sidewall rebound is good, not the feelings of cambered surface Condition improves the precision of part so that the cost of rectification mold be greatly saved, and is most importantly originally at full stretch The trial-production period saves a large amount of quality time.

Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new Type, and be not used as the restriction to the utility model, as long as in the spirit of the utility model, to the above Variation, the modification of embodiment will all be fallen in the Claims scope of the utility model.

Claims (1)

1. a kind of two times punch mold for the forming of zigzag shape beam piece characterized by comprising offer and zigzag shape beam Like members shape is adapted the cavity plate of groove, and equipped with the punch-pin for being adapted convex block with cavity plate upper groove；

Along the two sides of the length direction of convex block on the punch-pin, it is equipped with the side to prevent process part processing from generating rebound in punching press Muscle；

The length of side's muscle is 15 ± 0.05mm, and the height of square muscle is 12 ± 0.05mm, and the angle R on square muscle is R3 circle Angle.