CN215236979U - Bending and stamping module for internal hook of plate - Google Patents

Abstract

The utility model provides a collude punching press module of bending in panel, it includes location module and punching press module, the punching press module orientation location module motion to make the machined part contact on the die assembly of punching on it and the location module and accomplish and bend, be formed with first ejector pin in the punching press module, this first ejector pin through first elastomeric element with punching press module telescopically is fixed, among the stamping process, first ejector pin with the machined part surface offsets, and, the punching press module all the time with the machined part keeps non-contact state, and it has simplified structure and easily realizes, can collude in saving aluminium alloy panel and bend one step of fashioned while, solves the technical problem that the die leads to the finished product quality to descend with the scraping of panel face.

Description

Bending and stamping module for internal hook of plate

Technical Field

The utility model relates to a panel spare part processing technology field, specifically speaking relates to a collude punching press module of bending in panel.

Background

The aluminum plate is used as a common base material in the processing of hardware parts, and is widely applied to the field of metal stamping due to light weight and low cost.

Taking an aluminum stamping part with an inner hook bend as an example, in the prior art, the processing process of the inner hook bend is divided into a two-step bending forming method of performing right-angle bending first and then performing side bending at a certain side pushing angle on the end part formed by the right-angle bending.

Obviously, the processing procedure of two-step shaping can't satisfy the higher requirement that the second panel machining efficiency provided, and naturally, people begin to seek processing mode and processing equipment that accomplish the interior colluding and bend through one step only. Therefore, in the prior art, a bending female die is adopted on a punch press, the female die is prepared into an inclined sliding block capable of sliding on the surface of an aluminum sheet, and thus, the processing of bending the inner hook can be completed only by one step through the matching of a bending punch and the slidable female die. However, in order to ensure that the female die has certain processing strength, the bending female die generally needs to be made of hard materials such as steel, so that in the processing process, the bending female die made of hard materials slides in contact with the aluminum piece plate made of soft materials, and due to contact friction between the bending female die and the aluminum piece plate, the bending female die scrapes the surface of the aluminum product in the sliding process, and a large amount of aluminum scraps are generated by scraping to influence the quality of the finished product.

In view of this, the prior art should be improved to solve the problem that the concave die and the plate are scraped in the process of bending the aluminum plate.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a collude in the panel that bends stamping module with simplified structure and easily realization, can collude in saving aluminium alloy panel and bend one step of fashioned, solve the scraping of die and panel face and lead to this problem of finished product quality decline.

For solving the technical problem, the utility model discloses a collude punching press module of bending in panel, it includes location module and punching press module, the punching press module orientation location module motion to make the machined part contact and the completion on the punching press head subassembly and the location module above that bend, be formed with first ejector pin in the punching press module, this first ejector pin through first elastomeric element with punching press module telescopically is fixed, among the punching press process, first ejector pin with the machined part surface offsets, and, the punching press module all the time with the machined part keeps non-contact state.

Preferably, the punching die set comprises a punching die base, a fixing block, a bending punch and a discharging assembly are sequentially arranged on the punching die base perpendicular to the punching direction, the fixing block clamps the bending punch between the fixing block and the discharging assembly, and the bending side surface of the bending punch is attached to and limited by the end surface of the discharging assembly.

Preferably, the discharging assembly is provided with a fixed plate, a discharging base plate and a discharging plate in sequence along a stamping direction, wherein a first through channel is formed in the discharging base plate and the discharging plate, and the first ejector rod and the first elastic part are arranged in the first through channel; and the first ejector rod keeps the trend of extending out from the channel opening of the first channel under the action of the preset deformation amount of the first elastic component in a normal state, and the extending length is the sum of the thickness of the workpiece and the length of the preset distance.

Further preferably, the positioning module comprises a positioning die holder, a cavity plate and a cavity plate are arranged on the positioning die holder along the direction towards the stamping module, a through second channel is formed between the positioning die holder and the cavity plate, a second ejector rod is formed in the second channel and is fixed with the positioning die holder in a telescopic manner through a second elastic component, a cavity slide block is arranged at the end of the second ejector rod, wherein in a normal state, the second elastic component is in an unpressurized state, the second ejector rod keeps the trend of extending out of a channel opening of the second channel and jacks up the cavity slide block, and one side surface of the cavity slide block is in slidable fit with the cavity plate.

Still further preferably, the elastic force of the first elastic component to the first top bar is greater than the elastic force of the second elastic component to the second top bar.

Still further preferably, the die slide is a trapezoidal body and forms two opposite slope surfaces, which are respectively defined as a first slope surface close to the bending punch and a second slope surface close to the cavity plate, wherein one side of the cavity plate forms an inclined surface matched with the second slope surface, and when the die slide is subjected to a force in the stamping direction, the die slide slides along the inclined surface of the cavity plate and compresses the second elastic component until the movement of the die slide is limited by the die cushion plate.

Still further preferably, the die slide slides on the die plate so that the first slope surface of the die slide contacts with the bending side surface of the bending punch to bend the workpiece.

Due to the adoption of the technical scheme, the utility model discloses compare in prior art and have following beneficial technological effect:

1. the utility model provides a thought that the slip of bending die produced the scraping to the machined part among the prior art, be on the one hand through the ejector pin will bend the die and fix a position with the machined part surface, on the other hand, keep the length that the ejector pin stretches out the stripper to add predetermined length for the material thickness of machined part, thereby reduce the contact of stripper surface and machined part surface, namely, make the surface of stripper and the surface of machined part be non-contact state in the punching press process, like this, through the above-mentioned two aspects, solved because of the slip of bending die produced the scraping to the machined part surface, lead to the technical problem that machined part cost quality receives the influence;

2. the ejector rod pieces are respectively arranged in the stamping module positioning module, namely, a first ejector rod in the stamping module and a second ejector rod in the positioning module are supported by the first elastic part, the second ejector rod is supported by the second elastic part, the first ejector rod keeps the trend of extending out of the first channel opening under the normal state of the first elastic part, the extending length is larger than the material thickness of a machined part, meanwhile, the second ejector rod keeps the trend of extending out of the channel opening of the second channel under the normal state of the second elastic part, and the female die sliding block is jacked up. The elastic force of the first elastic component on the first ejector rod is larger than the elastic force of the second elastic component on the second ejector rod, so that in the stamping process, after the first ejector rod is contacted with the surface of a workpiece, the female die slide block can be further driven to slide along the inclined surface of the female die plate, the second ejector rod is compressed until the movement of the female die slide block is limited by the female die base plate, in the process, no sliding displacement is generated between the female die slide block and the workpiece, and the surface of the workpiece is always kept in a non-contact state with the stamping die set; then, in the further punching process, the first ejector rod is stressed and compresses the first elastic part, and because the distance which is larger than the thickness of the workpiece material is arranged between the first ejector rod and the surface of the workpiece, the distance between the first ejector rod and the elastic part can be eliminated by compressing the elastic part by the stressed first ejector rod, but because the female die sliding block is limited at the moment, the female die sliding block and the workpiece still do not slide relatively, so that scraping between the female die sliding block and the surface of the workpiece is reduced in the whole punching process, and the quality of a finished product is ensured;

3. based on the second point of the beneficial technical effect, in the process of one-step forming of inward-hooking bending, the completion of the bending process is ensured, and the scraping between the female die slide block and the surface of the stamping module and the surface of the machined part can be reduced, so that the stamping process is saved, the quality of a finished product is improved, and the production cost of the product is reduced.

Drawings

Fig. 1 is a schematic view illustrating a structure of an internally-hooked bent aluminum plate material in the prior art;

fig. 2 is a schematic view illustrating an overall structure of the plate inward-hooking bending stamping die set according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view illustrating a structure of a punching module in the plate inward hooking and bending punching module shown in FIG. 2;

FIG. 4 is a schematic view illustrating a structure of a positioning module in the plate inward hooking and bending stamping module shown in FIG. 2;

fig. 5 is a state diagram showing a material placing state of the plate inner hook bending stamping module according to the embodiment of the present invention before processing;

FIG. 6 is a state diagram showing a state in which the punching die set is pressed down and brought into contact with the surface of the member to be processed after the state shown in FIG. 5;

fig. 7 is a state diagram showing a state in which the die set has been completely struck and bent by the inner hook after the state shown in fig. 6;

fig. 8 is a state diagram showing the state of the module backhaul after the state shown in fig. 7.

Detailed Description

The following describes an embodiment of a bending and stamping module with internal hooks for a plate according to the present invention with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

It should be noted that, in the embodiments of the present invention, the expressions "first" and "second" are used for distinguishing two entities with the same name but different names or different parameters, and it can be seen that "first" and "second" are only used for convenience of description and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe this any more.

Fig. 1 is a schematic view illustrating a structure of an internally-hooked aluminum plate material in the prior art. Referring to fig. 1, the inward hooking bending is a processing process of bending one end of the plate toward one side surface thereof and forming an acute angle between the inner surface of the bent portion and the surface of the plate. For example, in the present invention, an aluminum plate with a bending angle of 80 ° is prepared. It should be understood that the bending stamping module set of the preferred embodiment of the present invention can be applied to different materials and different bending angles of the plate.

With reference to fig. 1, in the conventional process, the end of the plate to be bent is placed on a slidable die slide block, and the die slide block slides to make the workpiece contact with the bending punch, so that the inner hook is bent and formed in one step. And the utility model discloses a preferred embodiment is to collude in prior art and bend the die slider of in-process hard material and produce relative displacement with the machined part surface, lead to the machined part surface to produce the technical problem of aluminium bits because of the scraping and provide, and the utility model provides a thought of this technical problem includes following two aspects:

1) the contact area between the stamping module and the surface of the workpiece is reduced;

2) and the relative displacement between the die slide block and the workpiece is reduced.

Fig. 2 is a schematic view illustrating an overall structure of the bending and stamping die set according to a preferred embodiment of the present invention. As shown in fig. 2, the plate bending and punching module according to the preferred embodiment of the present invention is a punch structure composed of a positioning module 100 and a punching module 200. The positioning module 100 is used for fixing a position and bearing the weight of waiting to add the workpiece 300, and the punching press is realized towards the direction of positioning module 100 to punching press module 200, then the utility model discloses in, for the explanation is convenient, with the direction that punching press module 200 removed towards positioning module 100, it is reverse for the punching press to define.

First, look at the stamping module. Fig. 3 is a schematic view illustrating a structure of a punching die set in the plate inward-hooking punching die set shown in fig. 2. Referring to fig. 3, the stamping die set includes a stamping die holder 201, the stamping die holder 201 is a supporting base of the die set, and the surface of the stamping die set 200 is provided with a fixing block 202, a bending punch 203 and a discharging assembly in sequence from left to right along a direction perpendicular to the stamping direction (according to the display direction of fig. 3, i.e. the horizontal direction). The bending punch 203 is limited and fixed by the fixing block 202 and clamped between the fixing block 202 and the discharging assembly. That is, the fixed side surface of the bending punch 203 is pressed and limited by the fixing block 202, and the bending side surface of the bending punch is attached to the side surface of the discharging assembly.

The discharging assembly further comprises a fixing plate 204, a discharging backing plate 205 and a discharging plate 206 which are sequentially arranged along the stamping direction, a first channel (not shown) is formed in the discharging backing plate 205 and the discharging plate 206, the first channel extends from the bottom of the discharging backing plate 205 to the surface of the discharging plate 206 and forms an opening, and a telescopic piece formed by a top rod and an elastic part is arranged in an inner cavity of the first channel. The telescopic member, which defines the telescopic member in the first channel, includes a first push rod 207 and a first elastic component 208, the first push rod 207 is telescopically fixed by the first elastic component 208, and in a normal state, the first elastic component 208 makes the first push rod 207 keep a tendency of extending out from the channel opening of the first channel, that is, in a normal state, a part of the first push rod 207 is located outside the first channel. In the different embodiments of the present invention, the length of the first push rod 207 extending out of the first channel can be adjusted according to the requirement of the thickness of the processing material, and is always set to be longer than the length of the thickness of the processing material, and in the preferred embodiment, the extending length of the first push rod 207 is the length of the thickness of the processing material plus 0.5 mm.

And then the positioning module. Fig. 4 is a schematic view illustrating a structure of a positioning module in the plate inward-hooking stamping module shown in fig. 2. Referring to fig. 4, similar to the stamping die set 200. The positioning module 100 also includes a positioning die base 101 as a base body, and the positioning die base 101 is a supporting structure formed by a die base pad 1011 and a plurality of die base pillars 1012 on the die base pad. A cavity plate 102 and a cavity plate 103 are disposed on the positioning die holder 101 along a direction toward the stamping die set 200 (i.e., from top to bottom in the direction shown in fig. 4), and similarly, a second channel (not shown) matching the first channel is formed between the positioning die holder 101 and the cavity plate 103, and the second channel is a through channel, a part of which is located in the positioning die holder 101, and a part of which is located in the cavity plate 103. And, in the same way as in the first channel, the second channel cavity is also provided with a telescopic piece composed of a mandril and an elastic part, which is defined as a second mandril 104 and a second elastic part 105. Also, the second push rod 104 is telescopically fixed by the second elastic member 105, and the second elastic member 105 causes the second push rod 104 to keep a tendency to protrude from the passage opening of the second passage in a normal state, that is, a part of the second push rod 104 is located outside the second passage in a normal state.

With continued reference to fig. 4, the end of the portion of the second push rod 104 extending out of the second channel is connected to the die slide 106, and then, in a normal state, the second push rod 104 pushes up the die slide 106. Specifically, the die slide 106 is a trapezoidal body, and includes two opposing slope surfaces, which are defined as a first slope surface 1061 contacting the bending punch 203 during the punching process and a second slope surface 1062 attached to the die plate 102 according to the positional relationship. In order to be matched with the second slope 1062 of the die slide 106, an inclined surface matched with the second slope 1062 is formed on the side, attached to the die slide 106, of the die plate 102, so that the die slide 106 can slide along the inclined surface of the die plate 102 under a stress condition after being contacted and attached to the die plate 102.

During die closing and stamping, the female die sliding block 106 slides towards the female die base plate 103, so that on one hand, the workpiece 300 to be machined, which is borne on the female die sliding block 106, moves towards the bending side surface of the bending punch 203, and bending is completed in the moving process; on the other hand, the sliding of the die slide 106 towards the die backing plate 103 compresses the second ejector rod 104, so that the second ejector rod 104 is stressed and compresses the second elastic part 105 until the bottom surface of the die slide 106 contacts with the surface of the die backing plate 103 and generates a limit, and the die slide 106 stops sliding.

The structure of each component is described, and then the process of bending the inner hook in the mold closing state is described. Fig. 5 to 8 show the process from discharging to punching to forming and finally returning of the inner hook bending.

First, referring to fig. 2 and 5, in a mold opening state before the bending process, a plate to be processed is placed on a top end surface of the die slide 106, and at this time, due to the action of the second ejector 104 and the second elastic member 105, the die slide 106 is ejected, so that a non-contact state is formed between the surface of the workpiece to be processed and the cavity plate 102.

Next, referring to fig. 6 to 7, when the stamping operation starts, the stamping module 200 starts to stamp downwards, and the end of the first push rod 207 contacts with the surface of the workpiece to be machined first, in the preferred embodiment of the present invention, the elastic force generated by the first elastic component 208 to the first push rod 207 is set to be greater than the elastic force generated by the second elastic component 105 to the second push rod 104, so that, after the end of the first push rod 207 contacts with the surface of the workpiece to be machined, the pressing force of the first push rod 207 will make the die slide 106 bearing the workpiece 300 slide downwards along the inclined plane of the die plate 102 and compress the second elastic component 105 along with the continuous pressing of the stamping module. In the process, the first push rod 207 is in point contact with the surface of the workpiece 300 to be processed, so that the workpiece 300 to be processed is only positioned, the workpiece 300 to be processed is kept in a non-contact state with the surface of the stripper plate 206, and the distance between the workpiece 300 to be processed and the surface of the stripper plate 206 is always the length of the first push rod 207 extending out of the first channel passage opening.

And stops when the die slide 106 slides until it contacts the die backing plate 103. At this time, the stamping module is further pressed down, and the first push rod 207 is forced upward by the workpiece 300 to move toward the inner cavity of the first channel and compress the first elastic component 208, in the process, the length of the first push rod 207 extending out of the channel opening of the first channel is compressed, and at this time, the internal hook bending stamping process is completed.

Finally, referring to fig. 8, after the inner hook bending process is completed, the stamping module rises, and the second elastic component 105 recovers its elastic deformation, so as to push the second ejector rod 104 and make the die slide block 106 perform a return motion, and the die slide block 106 jacks up the processed plate, and finally the processed plate is discharged.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. A bending and stamping module for a plate inner hook comprises a positioning module and a stamping module, wherein the stamping module moves towards the positioning module to enable a stamping head assembly on the stamping module to be in contact with a workpiece on the positioning module and complete bending,

the stamping die set is characterized in that a first ejector rod is formed in the stamping die set, the first ejector rod is telescopically fixed with the stamping die set through a first elastic component, the first ejector rod is abutted against the surface of a workpiece in the stamping process, and the stamping die set is always kept in a non-contact state with the workpiece.

2. The sheet material internally-hooking bending stamping module set according to claim 1, wherein the stamping module set comprises a stamping die holder, and a fixing block, a bending punch and an unloading assembly are sequentially arranged on the stamping die holder perpendicular to the stamping direction, the fixing block clamps the bending punch between the bending punch and the unloading assembly, and the bending side surface of the bending punch is abutted to and limited by the end surface of the unloading assembly.

3. The sheet internally hooking and bending stamping module as defined in claim 2, wherein the discharge assembly is provided with a fixed plate, a discharge pad and a discharge plate in sequence along the stamping direction, wherein,

a first through channel is formed in the discharging base plate and the discharging plate, and the first ejector rod and the first elastic part are arranged in the first channel; and the first ejector rod keeps the trend of extending out from the channel opening of the first channel under the action of the preset deformation amount of the first elastic component in a normal state, and the extending length is the sum of the thickness of the workpiece and the length of the preset distance.

4. The sheet internally hooking stamping die set of claim 3,

the positioning module comprises a positioning die holder, a concave die plate and a concave die base plate are arranged on the positioning die holder along the direction towards the stamping module, a through second channel is formed between the positioning die holder and the concave die base plate, a second ejector rod is formed in the second channel and is telescopically fixed with the positioning die holder through a second elastic component, a concave die slide block is arranged at the end part of the second ejector rod, wherein,

under a normal state, the second elastic component is in a non-pressure-bearing state, the second ejector rod keeps the trend of extending out of the channel opening of the second channel and jacks up the female die sliding block, and one side surface of the female die sliding block is in slidable fit with the female die plate.

5. The sheet inward-hooking stamping module according to claim 4, wherein the elastic force of the first elastic member on the first ejector pin is greater than the elastic force of the second elastic member on the second ejector pin.

6. The sheet internally hooking stamping module of claim 5, wherein the die slide is a trapezoidal body and forms two opposing sloping surfaces, respectively defined as a first sloping surface adjacent to the bending punch and a second sloping surface adjacent to the die plate, wherein,

and an inclined plane matched with the second slope-shaped surface is formed on one side of the female die plate, so that when the female die slide block is subjected to a force in the stamping direction, the female die slide block slides along the inclined plane of the female die plate and compresses the second elastic part until the movement of the female die slide block is limited by the female die base plate.

7. The sheet internally hooking stamping module of claim 6, wherein the sliding of the die slide on the die plate causes the first sloped surface of the die slide to contact the bending side surface of the bending punch to bend the workpiece.

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