Disclosure of utility model
The utility model aims to provide a blanking, stretching and trimming integrated die which can finish three procedures of blanking, stretching and trimming in one single-station die, has high production efficiency, good safety and low cost, and simultaneously saves labor cost.
The utility model provides the following technical scheme: the blanking, stretching and trimming integrated die comprises a die holder set, an outer guide post and a material strip fixing plate, wherein the die holder set comprises a die handle, an upper die holder and a lower die holder; further comprises:
the blanking module comprises a blanking male punch and a stretching female die; the blanking male punch and the stretching female die are fixed on the upper die holder through connecting pieces; an upper die inner stripper plate is arranged in the inner cavity of the blanking male punch and the stretching female die; the upper inner stripper plate slides in a groove arranged in the stretching female die;
The stretching module comprises a stretching and pressing plate, a stretching and pressing force adjusting rod and a stretching and pressing ejector rod;
The trimming module comprises a trimming knife edge insert, a stretching male die, a trimming knife edge seat and a knife edge supporting plate, wherein the stretching pressing plate is arranged in the knife edge supporting plate and is connected with the stretching pressing ejector rod; a trimming knife edge insert and a drawing punch insert are sequentially arranged between the drawing punch and the trimming knife edge seat and the upper die inner stripper plate;
the blanking module, the stretching module and the trimming module are sequentially arranged between the upper die holder and the lower die holder according to the direction from the top to the bottom.
Further, a cutting-off knife edge plate and a material strip fixing plate are sequentially arranged at the top of the knife edge supporting plate; the cutting-off knife edge plate and the knife edge supporting plate are fixed with the lower die holder through connecting pieces; the knife edge supporting plate is of a cylinder structure; the knife edge supporting plate is sleeved outside the blanking male punch and the stretching female die.
Further, a stretching and pressing ejector rod is arranged on the lower die holder and drives the stretching and pressing plate to move.
Further, the stretching and pressing force adjusting rod is connected between the upper die seat and the lower die seat, and the blanking male punch and the stretching female die, the knife edge supporting plate and the material strip fixing plate are connected together.
Further, the stretching male die insert and the trimming blade insert are connected to the stretching male die and the trimming blade seat through connecting pieces, and the stretching male die and the trimming blade seat are fixed on the lower die seat.
Further, the outer guide post is supported between the upper die seat and the lower die seat; an outer guide sleeve is arranged between the upper die holder and the outer guide post.
The utility model has the following advantages.
(1) The production convenience of the single-station die is improved, the die development cost is low, the die development time is short, and the die assembly and debugging are convenient and quick.
(2) The die has low cost and high production efficiency.
(3) Solves the problem of high cost caused by products produced by continuous dies or multi-station dies.
(4) Can solve the problems of high die cost, low production efficiency, high production efficiency, convenient operation and favorable production
Is effective in (1).
(5) Solves the problem of multiple product procedures, can complete blanking, stretching and trimming in the same set of die, saves the machine, has higher labor cost and production efficiency.
(6) The problem that after the product is stretched, the shaping procedure is not well positioned is solved, after the edge of the stretching belt is cut, the product can be leveled, the positioning of the shaping procedure and the stripping of the product are facilitated, the concentricity and the precision of the jumping degree of the product are effectively improved, and the competition of the product is obviously improved.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
The utility model will be further described with reference to the following examples, which are given in connection with the accompanying drawings.
The embodiment is shown in the accompanying drawing 1, and the blanking, stretching and trimming integrated die provided by the embodiment of the utility model comprises a 1-stripping and beating rod, a 2-die shank, a 3-upper die seat, a 4-outer guide sleeve, a 5-stretching and pressing force adjusting rod, a 6-outer guide pillar, a 7-stretching male die insert, an 8-trimming knife edge insert, a 9-stretching male die and trimming knife edge seat, a 10-stretching and pressing ejector rod, a 11-lower die holder, a 12-stretching and pressing plate, a 13-knife edge supporting plate, a 14-cutting knife edge plate, a 15-material strip fixing plate, a 16-upper die inner stripping plate and a 17-blanking male die and stretching female die.
The embodiment is shown in the figure 1, and the blanking, stretching and trimming integrated die provided by the embodiment of the utility model is divided into four layers from outside to inside, wherein the outermost layer is an outer guide post and an outer guide sleeve, and the secondary outer layer is a strip fixing plate, a cutting knife edge plate and a knife edge supporting plate, which are sequentially arranged from top to bottom; the secondary inner layer is a blanking male punch, a stretching female die, a stretching pressing plate and a stretching pressing rod which are sequentially arranged from top to bottom; the innermost layer is an upper die inner stripper, a stretching male die insert, a trimming blade insert, a stretching male die and a trimming blade seat, which are sequentially arranged from top to bottom.
For the secondary outer layer, the knife edge supporting plate is placed on the lower die holder, the cutting knife edge plate and the knife edge supporting plate are nailed on the lower die holder through long screws, and the material strip fixing plate is nailed on the cutting knife edge plate through short screws. The cutting edge plate and the edge supporting plate and the strip fixing plate have the same inner diameter and outer diameter.
For the secondary inner layer, the blanking male punch and the stretching female die are fixed on the upper die holder through bolts, so that the space from the upper die holder to the upper part of the knife edge supporting plate is occupied, the stretching and pressing plate is completely positioned in the knife edge supporting plate, and the stretching and pressing plate is completely driven by the stretching and pressing ejector rod. Meanwhile, a chute is formed by the larger inner diameter of the middle and upper parts in the blanking male punch and the stretching female die, and the upper die stripping plate can move in the chute; the top of the periphery of the blanking male punch and the stretching female die is provided with a convex, so that the outer diameter of the mounting part is larger for fixing, and the stretching pressing force adjusting rod sequentially penetrates through the mounting part of the lower die base, the knife edge supporting plate, the cutting knife edge plate, the material strip fixing plate and the blanking male punch and the stretching female die from bottom to top and is fixed on the upper die base.
For the innermost layer, the upper die inner stripper occupies most space in the blanking male punch and the stretching female die, the lower end of the stretching male punch insert below the upper die inner stripper is flush with the lower end of the blanking male punch and the lower end of the stretching female die, the trimming knife edge insert is connected with the stretching male punch insert, the stretching male punch and the trimming knife edge seat, and mounting pieces such as screws are arranged above the stretching male punch insert to connect the stretching male punch insert, the trimming knife edge insert, the stretching male punch and the trimming knife edge seat together.
The scheme provided by the embodiment can solve the problems of high die cost and low production efficiency, and achieves the effects of high production efficiency, convenient operation and favorable production; solves the problem of multiple product procedures, can complete blanking, stretching and trimming in the same set of die, saves the machine, has higher labor cost and production efficiency. The problem that after the product is stretched, the shaping procedure is not well positioned is solved, after the edge of the stretching belt is cut, the product can be leveled, the positioning of the shaping procedure and the stripping of the product are facilitated, the concentricity and the precision of the jumping degree of the product are effectively improved, and the competition of the product is obviously improved.
The second embodiment is shown in fig. 1, and the blanking, stretching and trimming integrated die provided by the embodiment of the utility model comprises a die holder set, an outer guide post and a material strip fixing plate, wherein the die holder set comprises a die shank, an upper die and a lower die; further comprises:
the blanking module comprises a blanking male punch and a stretching female die; the blanking male punch and the stretching female die are fixed on the upper die holder through connecting pieces; an upper die inner stripper plate is arranged in the inner cavity of the blanking male punch and the stretching female die; the upper inner stripper plate slides in a groove arranged in the stretching female die;
The stretching module comprises a stretching and pressing plate, a stretching and pressing force adjusting rod and a stretching and pressing ejector rod;
The trimming module comprises a trimming knife edge insert, a stretching male die, a trimming knife edge seat and a knife edge supporting plate, wherein the stretching pressing plate is arranged in the knife edge supporting plate and is connected with the stretching pressing ejector rod; a trimming knife edge insert and a drawing punch insert are sequentially arranged between the drawing punch and the trimming knife edge seat and the upper die inner stripper plate;
The blanking module, the stretching module and the trimming module are sequentially arranged between the upper die and the lower die according to the direction from the top to the bottom.
In the embodiment, a cutting knife edge plate and a material strip fixing plate are sequentially arranged at the top of the knife edge supporting plate; the cutting-off knife edge plate and the knife edge supporting plate are fixed with the lower template through connecting pieces; the knife edge supporting plate is of a cylinder structure; the knife edge supporting plate is sleeved outside the blanking male punch and the stretching female die.
In the embodiment, a stretching and pressing ejector rod is arranged on the lower die holder, and the stretching and pressing ejector rod drives the stretching and pressing plate to move.
In this embodiment, the stretching and pressing force adjusting rod is connected between the upper die seat and the lower die seat, and connects the blanking male punch, the stretching female die, the knife edge supporting plate and the material strip fixing plate together.
In the embodiment, the stretching male die insert and the trimming blade insert are connected to the stretching male die and the trimming blade seat through connecting pieces, and the stretching male die and the trimming blade seat are fixed on the lower die holder.
In this embodiment, the outer guide post is supported between the upper and lower die seats; an outer guide sleeve is arranged between the upper die holder and the outer guide post.
In the third embodiment, as shown in fig. 1, a novel die structure integrating blanking, stretching and trimming can be used for well solving the problem of blanking a wafer required by stretching a product; the product is stretched, the flange edges are uneven after stretching, and a mould structure (a mould structure for finishing three working procedures of blanking, stretching, trimming and the like in the same set of single-engineering mould) is needed to be cut and flattened at the straight edges of the product. Because the product is stretched and then the straight wall of the product becomes irregular, the product is shaped after being stretched, the positioning is not accurate enough in the shaping process due to the uneven side wall of the product, the material removed from the product after shaping is stressed unevenly, the product is very easy to clamp in the shaping male die and is difficult to take out, a set of trimming die is needed to cut the uneven straight edge smoothly, the working procedures are numerous in the production of the product, and the production efficiency is low.
Some brushless motor products have coaxiality and runout (dynamic balance) requirements, and if accumulated errors caused by repeated positioning are relatively large, the optimal state is that the working procedures are reduced as much as possible when the products are smoothly produced in mass.
After the strip enters the blanking-stretching-trimming die, after the punch descends, the blanking punch shears the material, the process of blanking the wafer is about to be completed, the punch descends again, the stretching punch pulls the cut wafer into the stretching die, the stretching process is about to be completed, the punch descends again, after the stretching height reaches a design value, the trimming punch knife edge reaches the stretching die, the punch descends again, the trimming punch enters the stretching die to complete the trimming action, and thus the blanking to stretching of the strip is completed, and the trimming process is completed after the stretching is completed.
The die has a simple structure, three procedures of wafer discharging, stretching and trimming are completed in one die, the die processing cost is low, and meanwhile, the labor cost is saved.
The flange edge after stretching is trimmed under the condition of becoming irregular, so that the flange edge is convenient for the positioning of each subsequent process, the deviation and the concentricity degradation are not easy to generate, the positioning is more accurate, the stripping is more uniform and better, the personnel operation is easy and not hard, the wall thickness of each subsequent process is more uniform, the jumping degree is less, the dynamic balance quantity can be smaller, and the motor operation is more uniform. The production convenience of the single-station die is improved, the die development cost is low, the die development time is short, and the die assembly and debugging are convenient and quick. The die has low cost and high production efficiency, and solves the problem of high cost caused by products produced by continuous dies or multi-station dies.
The object of the present utility model is fully effectively achieved by the above-described embodiments. Those skilled in the art will appreciate that the present utility model includes, but is not limited to, those illustrated in the drawings and described in the foregoing detailed description. While the utility model has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the utility model is not limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.