Sheet metal part punch forming die

Abstract

The utility model relates to the technical field of punch forming, in particular to a sheet metal part punch forming die which comprises a driving assembly, a buffering assembly for buffering a punching table and a material ejecting assembly for ejecting punched sheet metal parts. The ejection assembly comprises a second buffer rod, an ejection plate and a model assembly; and the second buffer rod is fixedly connected with the top plate. According to the stamping forming die for the sheet metal part, when the stamping head descends, the top plate is matched with the bending table, the sheet metal part is stamped into a wave shape on the bending table, the top plate abuts against a groove in the surface of the bending table, the sheet metal part is completely formed, when the stamping head ascends, the second buffer rod can slowly extend till the air cylinder contracts to the limit distance, and therefore the sheet metal part is formed. At the moment, the buffer rod is slightly separated from the bending table, the top plate is slightly higher than the inner height of the bending table, the sheet metal part is ejected out, the sheet metal part is conveniently taken out, and the sheet metal part is prevented from being tightly attached to the bending table due to high temperature generated by instant stamping.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping and forming, in particular to a stamping and forming die for a sheet metal part. Background Art

[0002] As we all know, sheet metal stamping technology is widely used in a variety of fields, including aviation, automobiles, electronics, home appliances, and machinery manufacturing. With the rapid development of these industries, the demand for sheet metal parts continues to increase, driving the continuous advancement and innovation of sheet metal stamping technology. Sheet metal stamping technology is characterized by high production efficiency and can quickly achieve large-scale production using simple molds and stamping equipment. This highly efficient processing method can greatly improve production efficiency and reduce production costs, meeting the modern manufacturing industry's demand for efficient and low-cost production.

[0003] The shapes of sheet metal parts are usually complex and varied. In the automotive field, the reinforcements in the car chassis need to be stamped and formed during the production process, and the angle of the reinforcements connected to the car chassis must be determined, and they must be molded into a wavy shape to enhance the connection strength of the car chassis.

[0004] The utility model with application number CN202323102368.2 discloses a stamping mold for automobile sheet metal parts, including a processing table. After the stamping processing of the automobile sheet metal parts is completed, the second motor is turned on to drive the second screw to rotate, so that the movable plate drives the auxiliary plate to move right until the auxiliary plate is above the lower mold. The two first motors are controlled by the controller to start synchronously, drive the first screw to rotate, and the first lifting plate and the second lifting plate drive the auxiliary plate to descend until the sealing gasket at the bottom of the auxiliary plate contacts the workpiece. The fan is turned on to extract the air between the chamber, the through hole and the sealing gasket as much as possible, so that the workpiece is adsorbed under the auxiliary plate through a negative pressure state, and the second motor is turned on again to make the second screw rotate in the opposite direction, so that the movable plate drives the auxiliary plate to reset, and the fan is turned off to make the workpiece fall, thereby completing the removal of the workpiece. There is no need for personnel to reach into the lower mold to remove the workpiece, thereby improving safety and ensuring the safety of personnel.

[0005] This application uses the negative pressure of a fan to suck the sheet metal parts away from the mold forming table, thereby completing the removal of the workpiece. However, this removal method needs to ensure the flatness of the sheet metal parts themselves. At the same time, the fan needs to fit tightly with the sheet metal parts when sucking the sheet metal parts. When sucking bent sheet metal parts, it is usually impossible to suck them out.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of the utility model is to provide a sheet metal stamping die that can effectively solve the above technical problems.

[0008] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0009] A sheet metal stamping die, comprising: a driving assembly, a buffer assembly for buffering a stamping table, and a ejecting assembly for ejecting the stamped sheet metal;

[0010] The ejector assembly includes a second buffer rod, a top plate, and a mold assembly; the second buffer rod is fixedly connected to the top plate;

[0011] The model assembly consists of a bending platform and a fixer; the bending platform is fixedly connected to the fixer, and a positioning groove is provided on the bending platform.

[0012] Furthermore, the driving assembly consists of a mounting plate, a driving cylinder, and a base; the mounting plate is fixedly connected to the driving cylinder, and the mounting plate is fixedly connected to the base.

[0013] Furthermore, the buffer assembly includes a fixed plate, a punching head, and a first buffer rod; the fixed plate is fixedly connected to the punching head, and the fixed plate is fixedly connected to the first buffer rod.

[0014] Furthermore, the first buffer rods are provided in four groups, and the four groups of buffer rods are all fixedly connected to the base.

[0015] Furthermore, a positioning rod that matches the positioning groove is provided at the bottom of the punch head.

[0016] Furthermore, the fixers are provided in multiple groups and are plugged into the bending platform.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a sheet metal stamping forming die, when the punching head descends, the top plate and the bending table are in a matching relationship, so that the sheet metal is punched into a wavy shape on the bending table, and the top plate supports the groove on the surface of the bending table, so that it is completely formed; when the punching head rises, the second buffer rod will slowly extend until the cylinder shrinks back to the limit distance. At this time, the buffer rod slightly separates from the bending table, so that the top plate is slightly higher than the height inside the bending table, and the sheet metal is ejected, which is convenient for the sheet metal to be taken out and prevents the sheet metal from being tightly attached to the bending table due to the high temperature generated by the instantaneous stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 This is a schematic structural diagram of a sheet metal stamping die according to the present invention;

[0020] Figure 2 This is a cross-sectional view of a sheet metal stamping die of the utility model;

[0021] Figure 3 This utility model is a sheet metal stamping die Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a cross-sectional view of a sheet metal stamping die of the utility model.

[0023] In the figure: 1. Drive assembly; 11. Mounting plate; 12. Drive cylinder; 13. Base; 2. Buffer assembly; 21. Fixing plate; 22. Punching head; 23. First buffer rod; 3. Ejector assembly; 31. Second buffer rod; 32. Ejector plate; 33. Model assembly; 331. Bending table; 332. Fixer; 333. Positioning groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0025] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] like Figures 1 to 4 As shown, a sheet metal stamping die includes: a driving component 1, a buffer component 2 for buffering the stamping table, and a ejecting component 3 for ejecting the stamped sheet metal.

[0027] As we all know, sheet metal parts will generate a lot of heat during the stamping process. After stamping, the sheet metal parts may adhere to the stamping head 22 or the stamping table due to heat accumulation. At this time, the sheet metal parts are overheated and difficult for workers to remove, resulting in reduced work efficiency.

[0028] The punching table is punched by the driving assembly 1, which drives the punching head 22. The driving assembly 1 is composed of a mounting plate 11, a driving cylinder 12, and a base 13. The mounting plate 11 is fixedly connected to the driving cylinder 12, and the mounting plate 11 is fixedly connected to the base 13. The mounting plate 11 is fixed by the base 13 to prevent the driving cylinder 12 from vibrating during operation, so as to keep the punching position unchanged and prevent the punching position of the punching head 22 from changing and causing damage to the mold.

[0029] At the same time, during the stamping process, the buffer assembly 2 is used to adjust the impact force generated during stamping to prevent the stamping pressure from being too large and causing damage to the mold. The buffer assembly 2 includes a fixed plate 21, a punching head 22, and a first buffer rod 23; the fixed plate 21 is fixedly connected to the punching head 22, and the fixed plate 21 is fixedly connected to the first buffer rod 23. There are four groups of first buffer rods 23, and the four groups of buffer rods are all fixedly connected to the base 13, and the fixed plate 21 is fixedly connected to the output end of the driving cylinder 12; by starting the driving cylinder 12, the fixed plate 21 is driven to rise or fall, and the punching head 22 will also rise or fall accordingly to stamp the automobile reinforcement, and the residual impact force generated by the stamping is slowly released by the first buffer rod 23 to prevent the stamping pressure from being too large and causing damage to the sheet metal.

[0030] The ejector assembly 3 includes a second buffer rod 31, a top plate 32, and a mold assembly 33; the second buffer rod 31 is fixedly connected to the top plate 32, and the second buffer rod 31 is fixedly connected to the fixing plate 21; the mold assembly 33 consists of a bending table 331 and a fixture 332; the bending table 331 is fixedly connected to the fixture 332, and a positioning groove 333 is formed on the bending table 331; when the punch head 22 descends, the top plate 32 and the bending table 331 are in a mating relationship, so that the sheet metal part is punched into a wavy shape on the bending table 331, so that the top plate 32 presses against the groove on the surface of the bending table 331, so that it is fully formed;

[0031] When the punch head 22 rises, the second buffer rod 31 will slowly extend until the cylinder contracts back to the limit distance. At this time, the buffer rod slightly separates from the bending table 331, so that the top plate 32 is slightly higher than the height inside the bending table 331, and the sheet metal is ejected to facilitate the removal of the sheet metal and prevent the sheet metal from being tightly attached to the bending table 331 due to the high temperature generated by the instantaneous stamping.

[0032] At the same time, during the stamping process, since the sheet metal parts themselves are relatively light in weight but maintain high strength, sheet metal processing is convenient and flexible during the stamping process, and is suitable for various complex workpiece shapes and size requirements, including flat parts, bent parts, coiled parts, and drawn parts.

[0033] Working principle:

[0034] The mounting plate 11 is fixed by the base 13 to prevent the driving cylinder 12 from vibrating during operation, so as to keep the stamping position unchanged and prevent the stamping position of the stamping head 22 from changing and causing damage to the mold. By starting the driving cylinder 12, the fixed plate 21 is driven to rise or fall, and the stamping head 22 will also rise or fall accordingly to stamp the automobile reinforcement, and the residual impact force generated by the stamping is slowly released by the first buffer rod 23 to prevent the stamping pressure from being too large and causing damage to the sheet metal. When the stamping head 22 descends, the top plate 32 is in a matching relationship with the bending table 331, so that the sheet metal is stamped into a wavy shape on the bending table 331, and the top plate 32 is pressed against the groove on the surface of the bending table 331 to make it fully formed.

[0035] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A sheet metal stamping die, characterized in that: include: Drive assembly, buffer assembly for buffering the stamping table, and ejector assembly for ejecting the stamped sheet metal parts; The ejector assembly includes a second buffer rod, a top plate, and a mold assembly; the second buffer rod is fixedly connected to the top plate; The model assembly consists of a bending platform and a fixer; the bending platform is fixedly connected to the fixer, and a positioning groove is provided on the bending platform.

2. A sheet metal stamping die according to claim 1, characterized in that: The driving assembly consists of a mounting plate, a driving cylinder, and a base; the mounting plate is fixedly connected to the driving cylinder, and the mounting plate is fixedly connected to the base.

3. The sheet metal stamping die according to claim 1, wherein: The buffer assembly includes a fixed plate, a punching head, and a first buffer rod; the fixed plate is fixedly connected to the punching head, and the fixed plate is fixedly connected to the first buffer rod.

4. A sheet metal stamping die according to claim 3, characterized in that: The first buffer rods are provided in four groups, and the four groups of buffer rods are all fixedly connected to the base.

5. The sheet metal stamping die according to claim 3, wherein: The bottom of the punch head is provided with a positioning rod matched with the positioning groove.

6. The sheet metal stamping die according to claim 1, wherein: The fixers are provided in multiple groups and are plugged into the bending platform.

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