CN204308031U - Aluminium sheet stamping machine - Google Patents

Abstract

The utility model discloses mechanical processing stereotyped mold equipment, in particular to an aluminum plate stamping machine, comprising an upper mold frame, an upper mold, a lower mold frame and a lower mold, and the lower mold includes a cone platform, a sliding frame and a cone uniformly distributed in the circumferential direction. The slider on the periphery of the table, the cone and the slide frame are fixed on the lower mold frame, wherein the upper end of the cone table is small and the bottom end is large, and the slide frame is provided with an inclined chute, which is connected with the adjacent cone slope or cone The direction of the surface is consistent, the slider is set between the carriage and the cone, the slider is against the slope or the cone surface of the cone, the slider is slidably connected in the inclined chute, the cone The end face on the table and the upper part of the slider together form a profile matching the shape of the inner surface of the finished product with inner flanging. The utility model overcomes the defects of low production efficiency and high production cost in the prior art, and provides an aluminum plate stamping machine with inner flanging that can be produced in one step without an additional cylinder.

Description

Aluminum stamping machine

technical field

The utility model relates to a mechanical processing shaping mold equipment, in particular to an aluminum plate stamping machine.

Background technique

Stamping is a forming processing method that applies external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation to obtain workpieces (stamping parts) of required shape and size. Many aluminum products are made by stamping. For some products that need flanging, such as the door trim of a car, a certain amount of flanging needs to be made on the outer edge as a position for connecting with other components.

However, the existing mechanical processing technology can only carry out one-step forming processing on stamped products with outer flanging, such as directly setting the corresponding profiles on the upper and lower dies, and there is no difficulty in blocking or processing; for For stamped products with inner flanging, the upper mold or the lower mold cannot be directly covered to form the inner flanging. Just imagine that if the upper mold and the lower mold are directly covered, the shapes of the inner mold surfaces of the upper mold and the lower mold are equivalent to being on the same plane. Some vertical corners are added to the peripheral side of the upper mold, and the corners are turned inward. The upper mold is provided with a curved surface corresponding to the shape of the inner flange. The curved surface is curved inward, and the bottom of the curved surface is the plane (the curved surface of the lower mold is still below the plane of the lower mold), so if it is directly covered, the curved surface of the upper mold will be against the plane of the lower mold (instead of being close to the corresponding surface of the lower mold, and the outer surface of the profile cannot be clamped. edge), according to the inability to process the inner flanging.

In order to solve the above problems, the Chinese patent CN203887061 discloses a two-step continuous mold of shrinking and flaring, which includes an upper mold base, a lower mold base, and a tool for completing the upper pre-shrinking and lower expansion of the workpiece in the first working step. Die I and punch I, unloading rod and unloader for unloading the workpiece in the first step, air cushion rod I and air cushion plate I for ejecting the workpiece in the first step; used to complete the first step Die II and punch II for shrinking the upper part of the workpiece in the second step, air cushion rod II and air cushion plate II for ejecting the workpiece in the second step; die I, discharge rod and die II are installed on the On the mold base, the unloader is installed in the die I and connected with the unloading rod; the air cushion rod I cooperates with the air cushion plate I, the air cushion rod II cooperates with the air cushion plate II, and the air cushion rod I and the air cushion rod II are installed on the lower mold base and connected with the cylinder of the machine tool.

The idea adopted in the Chinese patent CN203887061 is: realize the corresponding stamping and flanging in two steps, that is, stamping and flanging are carried out step by step. . This method requires multiple cylinders in different directions (up and down and left and right directions) to cooperate, and it needs to be carried out step by step. The consumables are time-consuming, the production efficiency is low, and the production cost is high.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of punching machine for aluminum plate with inner flanging that only needs the cylinder in the up and down direction as the power, and can be produced in one step.

In order to solve the above technical problems, the utility model provides the following technical solutions:

Aluminum plate stamping machine, including upper mold base and lower mold base, and upper mold fixed on the upper mold base, lower mold fixed on the lower mold base, wherein the upper mold is provided with a shape matching the shape of the outer surface of the finished product with inner flanging On the surface, the lower mold includes a truncated cone, a sliding frame and sliders that are uniformly distributed on the periphery of the truncated cone. The truncated cone and the sliding frame are fixed on the lower mold frame. An oblique chute, the inclined chute is consistent with the direction of the adjacent conical truncated slope or conical surface, the slider is arranged between the carriage and the conical truncated, and the slider leans against the conical frustum slope or conical surface , the slider is slidably connected in the inclined chute, the upper end surface of the frustum of the cone and the upper part of the slider together form a profile that matches the shape of the inner surface of the finished product with inward flanging. The curved surface corresponding to the side shape is arranged on the outer edge of the upper part of the slider, and the upper part of the slider is higher than the upper end surface of the frustum of the cone. With return spring.

Explanation of terms: frustum, also known as frustum, refers to the solid between two parallel planes after a cone or pyramid is truncated by two parallel planes. According to whether the cut is a cone or a pyramid, it can be divided into a circular frustum and a pyramidal frustum.

Adopting the aluminum plate stamping machine of the utility model has the following effects:

During the processing, the upper part of the slider is higher than the upper end surface of the truncated cone, the profile is screwed on the slide, and there is a certain gap between the profile and the upper end surface of the truncated cone. When the upper die presses down, it first touches the profile on the slider, and the slider moves down under pressure. Since the slider is slidably connected in the inclined chute, because the inclined chute is in contact with the bevel of the cone or the cone The direction of the surface is consistent, so that the horizontal distance between the slider and the frustum will not change, and the slider will always move downward in a manner of abutting against the surface of the frustum;

The upper mold continues to move down, and the slider also moves down. When the upper mold touches the upper end surface of the cone, the distance between the upper mold and the cone is only the thickness value of the profile, and the distance between the upper mold and the slider The distance is also the thickness value of the profile. It can be seen that the upper surface of the truncated cone and the slider are flush at this time. Since the upper part of the truncated cone is smaller and the lower part is larger, the slider will move outward at the same time during the downward movement, which is equivalent to sliding the upper part and the upper surface of the slider. The area surrounded by the upper end surface of the cone becomes larger, and the slider moves from the center to the edge of the upper die, that is, the curved surface corresponding to the shape of the inner flange on the upper die, and the corresponding sliding outer edge is also equipped with an inner flange. The shape corresponds to the curved surface, and the approach of the two curved surfaces forms the inner and outer profiles of the inner flanging. The profile between the two curved surfaces will naturally be compressed and deformed to form a corresponding inward flanging shape, and then the profile becomes a finished product.

Then the upper mold rises, because the curved surface shape between the outer edge of the upper mold and the outer edge of the slider is consistent, and the inner flange formed by the profile, the upper mold will drive the profile and the slider to rise in turn, but because the slider and the cone The matching relationship between the cone surface or the inclined surface, the slider will move inward while rising, which is equivalent to the area enclosed by the upper part of the slide and the upper end surface of the cone becomes smaller, so that the slider will be inward with the profile. There is a large gap between them, and the upper mold drives the finished product upward to separate the finished product from the lower mold. The slide block is under the action of the return spring to keep the initial position for the next processing.

The aluminum plate stamping machine of the utility model does not need the cooperation of the cylinders in the left and right directions, and only needs the cylinders in the up and down directions to provide the power for the upper die to move down, so that the aluminum plate stamping with inner flanging can be produced in one step, and the production efficiency is high. The production cost itself is low.

Further, the slider includes a molding block on the upper part and a sliding block on the lower part, the sliding block is slidably connected in the inclined chute, the molding block is provided with the profile, and the molding block is fixed on the sliding On the block, and the sliding block is provided with an inclined surface matched with the frustum inclined surface or the tapered surface.

The slider is designed in separate parts, which is convenient for separate processing and then assembled. The method of separate processing and reassembly helps to shorten the production cycle of the entire stamping machine and save materials. Just imagine, if the sliding block and the forming block are processed on the same raw material, as long as one of the dimensions is improperly processed, the entire sliding block will be invalid. The corresponding standard parts are enough, and the wasted material is only the original part, not the whole slider. And processing separately, the sliding block and the forming block can be processed separately at the same time, without waiting for one part to be processed before processing the other part.

Further, the upper die includes a split upper die and a lateral die, the lower surface of the upper die and the inner side of the lateral die together form a profile that matches the shape of the outer surface of the finished product with inner flanging. The curved surface corresponding to the shape of the inner flanging is arranged on the inner side of the lateral die, the upper die is fixed on the upper die frame, and the lateral die is slidably connected to the upper die frame, the lower surface of the upper die and the lateral die The inner surfaces are at the same height position, and the upper die is directly above the upper end surface of the truncated cone.

Although the aluminum plate stamping machine of the utility model can produce finished products with inner flanging in one step, the demoulding operation between the finished product and the upper mold depends on the shape of the finished product itself. If the finished product has inner flanges on the left and right sides, and no flanges on the front and rear sides, as long as no corresponding curved surfaces are set on the front and rear sides of the upper mold, the finished product can be pushed out through the front and rear sides of the upper mold. But if the shape of finished product is to have flanging all around, just described patrix is made subdivided structure, promptly forms patrix by patrix and lateral die, and wherein lateral die is responsible for forming the curved surface of inner flanging.

Set the lower surface of the upper die and the inner side of the lateral die at the same height. When aluminum plates need to be processed, the lower surface of the upper die and the inner face of the lateral die can be spliced together through the sliding connection between the lateral die and the upper die frame , so as to combine into a "complete" profile that matches the shape of the outer surface of the finished product with inner flanging. After the stamping is completed, the lower surface of the upper die is separated from the inner side of the lateral die through the sliding connection between the lateral die and the upper die frame, so that the finished product can be easily removed.

Further, the lateral mold is slidably connected to the upper mold frame through a connecting block, and the outer side of the connecting block is provided with an oblique cut surface inclined inwardly and downwardly, and the lower mold frame directly below the connecting block is provided with an abutting block, and the abutting block The inside of the inner side is provided with an abutment surface which is consistent with the slope of the chamfered surface and whose position is corresponding.

The lateral die is slidingly connected on the upper die frame, and workers are required to lock the position between the lateral die and the upper die according to the actual situation, so as to avoid the upper die and the lateral die from being separated from each other during stamping. In order to realize automatic adjustment, according to the principle of wedge-surface fit, corresponding slopes are set on the side mold and the abutment block below the side mold. Since the beveled surface on the connection block is inclined from the outside of the connection block to the inside and the bottom, when the upper die moves downward, the connection block will cooperate with the wedge surface of the abutting block, so that the connection block will automatically move upward in the direction of the die. Finally, the lower surface of the upper die is spliced together with the inner side of the lateral die. In this way, the pressing of the lateral die and the upper die can be realized by the abutting block, without the need for an additional locking mechanism.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the aluminum plate punching machine of the present invention before punching and forming.

Fig. 2 is a schematic structural view of the punching and forming process in the embodiment of the aluminum sheet punching machine of the present invention.

Detailed ways

The utility model is described in further detail below by means of specific embodiments:

The reference signs in the drawings of the description include: upper die 1, upper die frame 2, sliding frame 3, connecting block 4, lateral die 5, profile 6, curved surface 7, forming block 8, abutting block 9, sliding frame 10. Bearing 11, cone truncated 12, sliding block 13, lower mold base 15, return spring 16.

The utility model aluminum plate stamping machine comprises upper die frame 2 and lower die frame 15, and the upper die fixed on upper die frame 2, and the lower die fixed on lower die frame 15. The aluminum plate stamping machine of the utility model is used for processing the finished product (made of aluminum) with inner flanging on the periphery, and the surface of the finished product is also required to be printed with certain patterns or bulges. Since the flanging on the periphery of the finished product is towards the inner side of the finished product, one side of the finished product forming the inner space surrounded by the flanging is defined as the inner surface of the finished product, that is, the lower surface of the profile 6 shown in Figure 2, and the other side (i.e. The upper surface of the profile 6 shown in 2) is defined as the outer surface of the finished product.

Wherein upper die is provided with the profile that matches with the outer surface shape of finished product with inner flanging as shown in Fig. 2, and described lower die comprises a frustum 12, slide frame 10 and the slide block that the circumferential direction is evenly distributed on frustum 12 periphery, so Said cone frame 12 and slide frame 10 are fixed on the lower mold frame 15, wherein the upper end of cone frame 12 is small and the bottom end is large. The direction is consistent, the slider is arranged between the carriage 10 and the frustum 12, the slider abuts against the inclined surface or the conical surface of the frustum 12, and the slider is slidably connected in the inclined chute. Described slide block comprises the molding block 8 that is located at the top and the sliding block 13 that is located at the bottom, and described sliding block 13 is slidably connected in the inclined chute, and profile block 8 is provided with described profile, and molding block 8 It is fixed on the sliding block 13, and the sliding block 13 is provided with an inclined surface matching with the inclined surface or the conical surface of the frustum 12.

There is a gap between adjacent sliding blocks 13, so the utility model aluminum plate stamping machine cannot be applicable to the requirements of all finished product patterns and bulges, such as the kind of pattern densely covering the entire finished product surface. In the utility model aluminum plate stamping machine, the upper end surface of the cone 12 and the upper part of the slider together form a profile matching the shape of the inner surface of the finished product, and the upper end surface of the cone 12 and the part of the upper surface of the forming block 8 are responsible for printing or uplifting, corresponding There is a gap between the adjacent forming blocks 8, which means that it is impossible to print or bulge on the finished product at the gap.

As shown in Figure 1, the curved surface 7 corresponding to the shape of the inner flange in the profile is arranged on the outer edge of the sliding block 13, and the sliding block 13 is higher than the upper end surface of the frustum 12. When it is flush with the upper end surface of the frustum 12, the profile can be spliced completely; in other states, the profile is separated. Moreover, the sliding frame 10 and the cone 12 are fixed on the lower mold frame 15 through a support 11 , and the return spring 16 is arranged between the sliding block 13 and the support 11 .

As shown in Figure 1, the upper die includes a split upper die 1 and a lateral die 5, the lower surface of the upper die 1 and the inner side of the lateral die 5 jointly form an outer shell with an inner flanging finished product. The surface shape matches the surface, the curved surface 7 corresponding to the shape of the inner flange is set on the inner side of the lateral mold 5, the upper die 1 is fixed on the upper mold frame 2, and the lateral mold 5 is slidably connected to the upper mold frame 2, the lower surface of the upper die 1 is at the same height as the inner surface of the lateral die 5, and the upper die 1 is directly above the upper end face of the frustum 12.

The lateral mold 5 is slidably connected to a sliding frame 3 preset by the upper mold frame 2 through a connecting block 4. The outer side of the connecting block 4 is provided with a beveled surface inclined inwardly and downwardly, and the lower mold frame directly below the connecting block 4 15 is provided with an abutment block 9, and the inner side of the abutment block 9 is provided with an abutment surface which is consistent with the slope of the chamfered surface and corresponding in position.

In terms of size setting, the most critical thing is the slope setting of the abutting block 9 and the connecting block 4. It is required that when the abutting block 9 is in contact with the slope on the connecting block 4, the height distance between the upper pressing block and the profile 6 is the same as that of the lateral mold. The ratio of the horizontal distance between 5 and the forming block 8 is exactly the inclination of the abutment block 9 and the inclination of the abutment block 9 and the connecting block 4. Otherwise, it is difficult to achieve matching on the processing position.

What is described above is only the embodiment of the utility model, and common knowledge such as the specific structure and characteristic known in the scheme is not described too much here. It should be pointed out that for those skilled in the art, some deformations and improvements can be made without departing from the structure of the present invention, such as the return spring 16 is arranged between the slide block and the bottom of the inclined chute, the described Back-moving spring 16 also can be set between connection block 4 and upper die 1, when demoulding like this, lateral die 5 can separate automatically with upper die 1, and demoulding automatically. These should also be regarded as the scope of protection of the utility model, and these will not affect the effect of the implementation of the utility model and the practicability of the patent. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (4)

1. aluminium sheet stamping machine, comprise top mold frame and lower mold holder, and be fixed on the patrix of top mold frame, be fixed on the counterdie of lower mold holder, it is characterized in that, wherein patrix is provided with the profile of mating with the external surface shape with in-flanges finished product, described counterdie comprises a frustum, balladeur train and circumference are distributed on the slide block of frustum periphery, described frustum and balladeur train are fixed on lower mold holder, wherein frustum is big top and small bottom, balladeur train is provided with oblique chute, this oblique chute moves towards consistent with contiguous frustum inclined-plane or the conical surface, described slide block is located between balladeur train and frustum, slide block is resisted against on described frustum inclined-plane or the conical surface, skid is connected in described oblique chute, the top of described frustum upper surface and slide block forms the profile of mating with the inner surface configuration with in-flanges finished product jointly, curved surface corresponding with in-flanges shape in profile is located at the outward flange on slide block top, the top of slide block is higher than the upper surface of described frustum, back-moving spring is provided with between described slide block and lower mold holder or bottom slide block and oblique chute.

2. aluminium sheet stamping machine as claimed in claim 1, it is characterized in that: described slide block comprises the forming blocks being located at top and the sliding shoe being located at bottom, described sliding shoe is slidably connected in oblique chute, forming blocks is provided with described profile, forming blocks is fixed on sliding shoe, and sliding shoe is provided with the inclined-plane with described frustum inclined-plane or cone match.

3. aluminium sheet stamping machine as claimed in claim 1; it is characterized in that: described patrix comprises top die and the side direction mould of split; described top die lower surface forms the profile of mating with the external surface shape with in-flanges finished product jointly with side direction mould medial surface; curved surface corresponding with in-flanges shape in profile is located at side direction mould medial surface; top die is fixed in top mold frame; side direction mould is slidably connected in top mold frame; described top die lower surface and side direction mould medial surface are in sustained height position, and described top die is in directly over frustum upper surface.

4. aluminium sheet stamping machine as claimed in claim 3, it is characterized in that: side direction mould is slidably connected in top mold frame by a contiguous block, the scarf of inside inclined downward is provided with outside described contiguous block, lower mold holder immediately below contiguous block is provided with one against block, and the inner side against block is provided with and abutment face that position corresponding consistent with described scarf slope.