CN108421895B - Easy demoulding self-detecting stamping die - Google Patents
Easy demoulding self-detecting stamping die Download PDFInfo
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- CN108421895B CN108421895B CN201810230384.4A CN201810230384A CN108421895B CN 108421895 B CN108421895 B CN 108421895B CN 201810230384 A CN201810230384 A CN 201810230384A CN 108421895 B CN108421895 B CN 108421895B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention provides an easy-demoulding self-detection stamping die, which comprises a base, a forming module and a stamping rod, wherein the base is provided with a base seat; a piezoelectric device is arranged in the center of the top surface of the base; the forming module comprises symmetrical stamping blocks which are assembled on the sliding groove in a sliding mode, and symmetrical positioning blocks are vertically fixed at the tops of the stamping blocks; the rear end of the stamping block is provided with symmetrical fixed blocks which are vertically fixed on the base, and a tension spring is connected between the stamping block and the fixed blocks; the stamping rod is arranged right above the piezoelectric device; the easy-demoulding self-detection stamping die detects the state of a stamping rod, so that the state of the stamping rod is automatically adjusted to enable the stamping size of a workpiece to be more accurate; meanwhile, the device can realize demoulding operation by automatically separating the stamping die.
Description
Technical Field
The invention relates to the field of stamping dies, in particular to a self-detection demoulding stamping die.
Background
The stamping die is a special technological equipment for processing metal or nonmetal into parts or semi-finished products in cold stamping, and is called cold stamping die commonly called cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. In the sheet stamping process, the difficulty in demolding is high due to the small thickness of the sheet; the existing demoulding mode is that a pushing device pushes a sheet after the sheet is punched, so that the sheet is separated from a punching die; however, when the sheet is pressed by an excessive pressing force, the sheet can be in close contact with a pressing die, and the workpiece can be damaged due to forced demolding of the pushing device; if the hardness of the workpiece is low, the workpiece is deformed again by forced demoulding, so that the workpiece is scrapped. In sheet stamping, for a workpiece with a thickness smaller than a standard thickness, a stamping rod is reset in advance during stamping, and the workpiece is scrapped due to a large error between the stamped size of the workpiece and the standard size of the workpiece to be stamped. In the sheet punching process, the sheet must be accurately positioned before punching, and if the positioning is not accurate or the sheet moves during punching, the sheet is distorted and deformed due to huge punching torque force during punching, so that the sheet is scrapped. In summary, there are drawbacks.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an easy-to-release self-detecting stamping die, which detects the state of a stamping rod, so as to automatically adjust the state of the stamping rod, so that the stamping size of a workpiece is more accurate; meanwhile, the demolding operation can be realized through automatically separating the stamping die.
The technical scheme adopted by the invention for solving the technical problem is as follows: the easy demoulding self-detection stamping die comprises a base, a forming module and a stamping rod; a piezoelectric device is arranged in the center of the top surface of the base; symmetrical chutes are arranged on two sides of the piezoelectric device; the forming module comprises symmetrical stamping blocks which are assembled on the sliding groove in a sliding mode, and symmetrical positioning blocks are vertically fixed at the tops of the stamping blocks; the rear end of the stamping block is provided with symmetrical fixed blocks which are vertically fixed on the base, and a tension spring is connected between the stamping block and the fixed blocks; a permanent magnet is arranged on one side, facing the fixed block, of the stamping block, an electromagnet is arranged on one side, facing the stamping block, of the fixed block, and the electromagnet is connected with the piezoelectric device and a power supply through a lead; the stamping rod is arranged right above the piezoelectric device.
Preferably, the two sides of the punching rod are provided with spray heads, the spray heads are connected with an air pump through pipelines, and the pipelines are universal bamboo joint pipes.
Preferably, a push plate driven by an electric push rod is designed at a gap between the stamping blocks, and the position of the push plate corresponds to the position of the piezoelectric module.
Preferably, the positioning block comprises a fixed end and a sliding end, the sliding end is slidably assembled on the stamping block, and the stamping block is provided with a scale value matched with the sliding end to slide.
Preferably, an electric heating module is arranged at the bottom end of the punching rod.
The invention has the beneficial effects that: when the easy-demoulding self-detection stamping die is used, a user places a sheet workpiece between the positioning blocks, so that a part to be stamped of the sheet workpiece is placed right above a gap between the stamping blocks; and starting the stamping rod, pressing the stamping rod downwards on the sheet workpiece to enable the sheet workpiece to be bent and deformed, and stamping the sheet workpiece into a required shape under the extrusion action of the stamping rod and the stamping block to achieve the function of stamping the sheet. When the stamping rod presses a sheet workpiece downwards, the electromagnet is in an open state, so that the electromagnet and the permanent magnet are in a same-pole repulsion state, and therefore in the process that the workpiece deforms along with the pressing of the stamping rod, small displacement compensation is arranged between the stamping blocks, the workpiece can automatically adapt to and adjust to a correct stamping position, and the phenomenon of scrapping caused by movement when the sheet workpiece is incorrectly positioned or deforms is avoided.
After the sheet workpiece is stamped, the sheet workpiece is pressed down under the action of the stamping rod until the sheet workpiece is contacted with the piezoelectric module; after the piezoelectric module receives the extrusion signal, the electromagnet is powered off through the transmission of an electric signal, so that the repulsive force between the electromagnet and the permanent magnet disappears; at the moment, under the action of the tension spring, the stamping block moves towards the fixed block on the sliding groove; so that the punching block is separated from the sheet workpiece, and the effect of punching and demoulding is achieved; and the user takes out the punched sheet workpiece. And after the piezoelectric module is reset, the process is repeated, and then the sheet punching operation can be circularly carried out.
Drawings
Fig. 1 is a front view of the easy-to-release self-detecting stamping die of the invention.
Fig. 2 is a front view of the stamping state of the easy-demoulding self-detection stamping die.
FIG. 3 is a front view of the easy-to-release self-detecting stamping die of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
as shown in the embodiments of fig. 1, 2 and 3, the easy-to-release self-detecting stamping die is a stamping die which detects the state of a stamping rod, so that the state of the stamping rod is automatically adjusted to enable the stamping size of a workpiece to be more accurate; meanwhile, the device can realize demoulding operation by automatically separating the stamping die, and comprises a base 1, a forming module 2 and a stamping rod 3; a piezoelectric device 11 is arranged in the center of the top surface of the base 1; two sides of the piezoelectric device 11 are provided with symmetrical chutes; the forming module 2 comprises symmetrical stamping blocks 20 which are assembled on the sliding groove in a sliding mode, and symmetrical positioning blocks 22 are vertically fixed at the top of the stamping blocks 20; the rear end of the stamping block 20 is provided with symmetrical fixed blocks 21 which are vertically fixed on the base 1, and a tension spring 211 is connected between the stamping block 20 and the fixed blocks 21; a permanent magnet is arranged on one side, facing the fixed block 21, of the stamping block 20, an electromagnet is arranged on one side, facing the stamping block 20, of the fixed block 21, and the electromagnet is connected with the piezoelectric device 11 and a power supply through a lead; the punching rod 3 is arranged right above the piezoelectric device 11.
When the easy-demoulding self-detection stamping die is used, a user places the thin sheet workpiece 4 between the positioning blocks 22, so that the part to be stamped of the thin sheet workpiece 4 is placed right above the gap between the stamping blocks 20; and starting the stamping rod 3, pressing the stamping rod 3 downwards on the sheet workpiece 4 to enable the sheet workpiece 4 to be bent and deformed, and stamping the sheet workpiece 4 into a required shape under the extrusion action of the stamping rod 3 and the stamping block 20 to achieve the function of stamping sheets. When the punching rod 3 pushes the thin-sheet workpiece 4 downwards, the electromagnet is in an open state, so that the electromagnet and the permanent magnet are in a state of homopolar repulsion, and therefore in the process that the workpiece deforms along with the pushing of the punching rod 3, small displacement compensation is arranged between the punching blocks 20, the workpiece can automatically adapt to and adjust to a correct punching position, and the phenomenon of scrapping caused by movement when the thin-sheet workpiece 4 is incorrectly positioned or deforms is avoided.
After the sheet workpiece 4 is punched, the sheet workpiece 4 is pressed down under the action of the punching rod 3 until the sheet workpiece is contacted with the piezoelectric module; after the piezoelectric module receives the extrusion signal, the electromagnet is powered off through the transmission of an electric signal, so that the repulsive force between the electromagnet and the permanent magnet disappears; at this time, under the action of the tension spring 211, the stamping block 20 moves on the chute towards the fixed block 21; so that the punching block 20 is separated from the sheet workpiece 4, and the function of punching and demoulding is achieved; the user takes out the punched sheet workpiece 4. And after the piezoelectric module is reset, the process is repeated, and then the sheet punching operation can be circularly carried out.
As shown in fig. 1, 2 and 3, two sides of the punching rod 3 are provided with nozzles, the nozzles are connected with an air pump through a pipeline, and the pipeline uses a universal bamboo joint pipe. The user can be through manual regulation the position of giving vent to anger of pipeline, through the air pump to thin slice work piece 4 and jet-propelled in the clearance between the punching press piece 20, can clear away thin slice work piece 4 and dust particle on the punching press piece 20 avoids the dust particle to influence the quality of punching press.
As shown in fig. 1 and fig. 3, a push plate driven by an electric push rod is designed at a gap between the punching blocks 20, and the position of the push plate is arranged corresponding to the position of the piezoelectric module. After the sheet is punched, the punching block 20 is separated and demoulded, the electric push rod is started, and the punched sheet workpiece 4 is pushed out of the punching area through the push plate, so that the automatic punching processing operation is realized.
As shown in fig. 1, 2 and 3, the positioning block 22 includes a fixed end and a sliding end, the sliding end is slidably assembled on the stamping block 20, and the stamping block 20 is provided with a scale value matching the sliding end for sliding. By moving the positioning block 22 at the sliding end and adjusting according to the scale value, the sheet workpiece 4 can be positioned more accurately, and the stamping efficiency is improved.
As shown in fig. 1, 2 and 3, an electric heating module is provided at the bottom end of the punching rod 3. Before stamping, the electric heating module is started, so that when the stamping rod 3 is in contact with the sheet workpiece 4, the sheet can be heated and softened, and the ductility of the sheet workpiece 4 can be increased; the sheet workpiece 4 is prevented from being broken due to too high a punching speed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.
Claims (3)
1. The utility model provides an easy demoulding self-detecting stamping die's operating method, easy demoulding self-detecting stamping die includes base (1), shaping module (2) and ram rod (3), its characterized in that: a piezoelectric device (11) is arranged in the center of the top surface of the base (1); symmetrical sliding grooves are formed in the two sides of the piezoelectric device (11); the forming module (2) comprises symmetrical stamping blocks (20) which are assembled on the sliding groove in a sliding mode, and symmetrical positioning blocks (22) are vertically fixed at the tops of the stamping blocks (20); the rear end of the stamping block (20) is provided with symmetrical fixed blocks (21) which are vertically fixed on the base (1), and a tension spring (211) is connected between the stamping block (20) and the fixed blocks (21); a permanent magnet is arranged on one side, facing the fixed block (21), of the stamping block (20), an electromagnet is arranged on one side, facing the stamping block (20), of the fixed block (21), and the electromagnet is connected with the piezoelectric device (11) and a power supply through a lead; the stamping rod (3) is arranged right above the piezoelectric device (11); the working method of the easy-demoulding self-detection stamping die comprises the following steps that a user places a thin sheet workpiece (4) between the positioning blocks (22) so that a part to be stamped of the thin sheet workpiece (4) is placed right above a gap between the stamping blocks (20); the stamping rod (3) is started, the stamping rod (3) is pressed down on the sheet workpiece (4) to enable the sheet workpiece (4) to be bent and deformed, and the sheet workpiece (4) is stamped into a required shape under the extrusion action of the stamping rod (3) and the stamping block (20) to achieve the function of stamping a sheet; when the punching rod (3) presses the thin-sheet workpiece (4) downwards, the electromagnet is in an open state, so that the electromagnet and the permanent magnet are in a state of homopolar repulsion; after the sheet workpiece (4) is punched, the sheet workpiece (4) is pressed down under the action of the punching rod (3) until the sheet workpiece is contacted with the piezoelectric device; after the piezoelectric device receives the extrusion signal, the electromagnet is powered off through the transmission of an electric signal, so that the repulsive force between the electromagnet and the permanent magnet disappears; at the moment, under the action of the tension spring (211), the stamping block (20) moves towards the fixed block (21) on the sliding groove; so that the punching block (20) is separated from the sheet workpiece (4) to achieve the effect of punching and demoulding; the user takes out the punched sheet workpiece (4); a push plate driven by an electric push rod is arranged in a gap between the stamping blocks (20), and the position of the push plate corresponds to the position of the piezoelectric device; the positioning block (22) comprises a fixed end and a sliding end, the sliding end is assembled on the stamping block (20) in a sliding mode, and the stamping block (20) is provided with a scale value matched with the sliding end in a sliding mode.
2. The working method of the easy-demoulding self-detection stamping die as claimed in claim 1, characterized in that: the sprayer is installed on the two sides of the stamping rod (3) and connected with the air pump through a pipeline, and the pipeline is made of universal bamboo joint pipes.
3. The working method of the easy-demoulding self-detection stamping die as claimed in claim 1, characterized in that: and an electric heating module is arranged at the bottom end of the stamping rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230384.4A CN108421895B (en) | 2018-03-20 | 2018-03-20 | Easy demoulding self-detecting stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230384.4A CN108421895B (en) | 2018-03-20 | 2018-03-20 | Easy demoulding self-detecting stamping die |
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| CN108421895A CN108421895A (en) | 2018-08-21 |
| CN108421895B true CN108421895B (en) | 2020-07-03 |
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| CN201810230384.4A Active CN108421895B (en) | 2018-03-20 | 2018-03-20 | Easy demoulding self-detecting stamping die |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110480942B (en) * | 2019-03-04 | 2023-08-01 | 娄底市安地亚斯电子陶瓷有限公司 | Injection mold structure suitable for power battery relay shell blank molding |
| CN110976599A (en) * | 2019-12-26 | 2020-04-10 | 吉林工程技术师范学院 | Automatic stamping forming equipment for end part of cylindrical pipe fitting |
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| CN108421895A (en) | 2018-08-21 |
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