CN113441628A

CN113441628A - Automobile spare and accessory part physiosis formula metal stamping die

Info

Publication number: CN113441628A
Application number: CN202111021582.8A
Authority: CN
Inventors: 熊义旺
Original assignee: Nantong Jiwei Electromechanical Equipment Co ltd
Current assignee: Nantong Jiwei Electromechanical Equipment Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-09-28
Anticipated expiration: 2041-09-01
Also published as: CN113441628B

Abstract

The invention discloses an inflatable metal stamping die for automobile parts, which belongs to the technical field of stamping, and can be used for stamping metal by arranging detection grooves at a plurality of positions on a fixed die, extruding detection blocks in the detection grooves to enter the detection grooves to be matched with the detection blocks, leaving gaps instead of the detection blocks when the detection blocks integrally enter the detection grooves if deviation or shape rebounds, applying a magnetic field to marking powder by utilizing an electromagnet to extrude an outer gas film, then canceling the expansion action of the outer gas film by utilizing the inertia of an object to push the marking powder to be released from the gaps to mark the deviation.

Description

Automobile spare and accessory part physiosis formula metal stamping die

Technical Field

The invention relates to the technical field of stamping, in particular to an inflatable metal stamping die for automobile parts.

Background

Cold stamping is a press working method in which a press die is used to apply pressure to a sheet material on a press machine at normal temperature to cause plastic deformation or separation of the sheet material, thereby obtaining a part of a desired shape and size. In cold stamping, a cold stamping die is the processing equipment used for stamping. Without an advanced cold die, an advanced stamping process cannot be realized. The stamping equipment, the die and the process conditions are three elements of stamping processing.

The stamping forming process has the advantages of difficult processing, high precision, high technical requirement and high production cost, and the stamping forming process can be fully embodied only under the condition of large production batch of stamping parts, thereby obtaining good economic benefit. Cold stamping plays an important role in modern industrial production, is an indispensable processing method in national defense industry and civil industrial production, and in automobile products, stamping parts account for 75-80%.

However, the current metal die inevitably generates deviation during stamping, so that the appearance or the quality of a stamped product has problems, or the stamped product has a phenomenon of local springback, in the prior art, the stamped product is often detected after stamping is finished, the detection efficiency is low, time and labor are wasted, and meanwhile, the unqualified product is subjected to targeted secondary stamping.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an inflatable metal stamping die for automobile parts, which can be used for stamping metal in a mode that a plurality of positions are provided with detection grooves, the detection blocks in the detection grooves are extruded to enter the detection grooves to be matched with the detection blocks, if deviation or shape rebound occurs, the detection blocks cannot integrally enter the detection grooves but leave gaps, an electromagnet is used for applying a magnetic field to marking powder to extrude an outer air film, and then the magnetic field is cancelled, under the expansion action of the outer air film, the marking powder can be pushed to be released from the gaps by using the inertia of an object to mark the deviation positions.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an automobile spare and accessory part physiosis formula metal stamping die, includes the pressure board, cover half and movable mould are installed to pressure board upper end, and the cover half is located the movable mould downside, a plurality of detection grooves have been seted up on the cover half, it detects the piece to be equipped with the assorted in the detection groove, it includes the sense terminal, extends end and many support bars to detect the piece, extend the equal fixed connection of end and support bar in sense terminal lower extreme, and extend the end and be located center department, the support bar distributes around extending end ring array, fixedly connected with foreign gas membrane on the detection groove diapire, and detect the piece and run through the foreign gas membrane and extend to its inboard, the last distribution of foreign gas membrane has the mark powder, the inner of pressure board is inlayed and is installed the electro-magnet.

Further, the sense terminal is from last to the round platform form that the diameter gradually diminishes gradually down, and its upper surface with detect the groove notch phase-match, only when the metal punching press satisfies the required precision, the sense terminal just in time covers the detection groove and shields, in case when deviation or defect region appear, the sense terminal can and detect and leave the space between the groove, mark powder can follow the space and release out and mark the defect region.

Furthermore, the outer gas film comprises a main film, an annular auxiliary film and a magnetic absorption layer, the annular auxiliary film is embedded and connected onto the main film, the annular auxiliary film corresponds to the supporting bars, the magnetic absorption layer is attached to the inner surface of the annular auxiliary film, the marking powder is absorbed on the magnetic absorption layer, the magnetic absorption layer is temporarily stored in the annular auxiliary film through the absorption marking powder, the magnetic absorption layer can be released to the outside along the supporting bars right after being thrown out, and the magnetic absorption layer is not blocked by a detection end easily so as to reduce the probability of successful marking.

Furthermore, the main membrane and the annular auxiliary membrane are both made of elastic and air-tight materials, the elasticity of the annular auxiliary membrane is superior to that of the main membrane, after the electromagnet applies a magnetic field, the marking powder extrudes the annular auxiliary membrane to generate large deformation, and the marking powder is thrown out when the shape is recovered so as to mark along the gap.

Furthermore, the marking powder sequentially comprises an inner iron core, a colored paint layer and a liquid film from inside to outside, the inner iron core can be attracted by a magnetic field, the color of the colored paint layer can be obviously marked visually, and the liquid film can assist the inner iron core to be adhered to a defect area of metal and is not easy to directly fall off.

Further, the inner iron core is made of a ferromagnetic material, and the liquid film is high-viscosity liquid.

Furthermore, the marking powder comprises a plurality of different particle sizes, the maximum particle size is smaller than the difference between the minimum diameter of the detection end and the width of the detection groove, theoretically, the larger the deviation in metal stamping is, the larger the gap formed between the detection end and the detection groove is, so that the marking powder with the larger particle size can smoothly pass through, the deviation condition can be basically obtained by judging the maximum particle size of the marking powder, and the subsequent targeted processing is facilitated.

Furthermore, the distance between the bottom end of the extension end and the bottom wall of the detection groove is consistent with the height of the detection end extending out of the detection groove, when the metal stamping meets the precision requirement, the detection end just enters the detection groove, and the extension end abuts against the bottom wall of the detection groove.

Furthermore, the bottom wall of the detection groove is fixedly connected with an inner liquid film, the inner liquid film is positioned on the inner side of the outer air film, and the extension end also penetrates through the inner liquid film and extends to the inner side of the inner liquid film.

Furthermore, the inner liquid film is filled with electrorheological fluid, the electrorheological fluid is electrically connected with an external power supply, the electrorheological fluid is characterized by being fluid under a normal state, normal movement of the detection block can be met, the detection block is hardened through electrification after stamping is finished, the position of the detection block is fixed, the position of the detection block cannot deviate when the marking powder is attracted and released through a magnetic field, and the situation that the detection groove is just covered after the detection block moves is avoided.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme can be that the detection grooves are formed in a plurality of positions on the fixed die, when metal is punched, the detection blocks in the detection grooves are extruded to enter the detection grooves to be matched with the detection blocks, if deviation or shape rebounds, the detection blocks cannot integrally enter the detection grooves but leave gaps, the electromagnet is used for applying a magnetic field to the marking powder to extrude the outer air film, then the magnetic field is cancelled, under the expansion action of the outer air film, the marking powder can be pushed to be released from the gaps by the inertia of an object to mark the deviation, and compared with the prior art, the punching precision detection method can realize the detection of punching precision in the punching process and position a defect area.

(2) The detection end is from last to the round platform form that the diameter gradually diminishes gradually down, and its upper surface with detect groove notch phase-match, only when the metal punching press satisfies the required precision, the detection end just in time covers the detection groove and shields, in case when deviation or defect region appear, the detection end can and detect and leave the space between the groove, mark powder can follow the space and release away and mark the defect region.

(3) The marking powder sequentially comprises an inner iron core, a colored paint layer and a liquid film from inside to outside, the inner iron core can be attracted by a magnetic field, the color of the colored paint layer can be obviously marked visually, and the liquid film can assist the inner iron core to be adhered to a defect area of metal and is not easy to directly fall off.

(4) The marking powder comprises a plurality of different particle sizes, the maximum particle size is smaller than the difference between the minimum diameter of the detection end and the width of the detection groove, theoretically, the larger the deviation in metal stamping is, the larger the gap formed between the detection end and the detection groove is, so that the larger the particle size of the marking powder can pass through smoothly, the deviation condition can be basically obtained by judging the maximum particle size of the marking powder, and subsequent targeted processing is facilitated.

(5) The inner liquid film is filled with electrorheological fluid, the electrorheological fluid is electrically connected with an external power supply, the electrorheological fluid is characterized by being fluid under a normal state, normal movement of the detection block can be met, the position of the detection block is fixed by hardening the position of the detection block through electrification after stamping is finished, then the position of the detection block cannot deviate when the marking powder is attracted and released through a magnetic field, and the situation that the detection groove is just covered after the detection block moves is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a fixed mold part of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a detection block according to the present invention;

FIG. 5 is a schematic structural view of the outer air film in a normal state according to the present invention;

FIG. 6 is a schematic view of the structure at B in FIG. 5;

FIG. 7 is a schematic structural view of the outer air film in a deformed state according to the present invention;

FIG. 8 is a schematic structural view of the marking powder of the present invention;

FIG. 9 is a schematic structural diagram of a marking powder according to the present invention;

FIG. 10 is a schematic structural diagram of the present invention showing the labeling of different particle size marker powders.

The reference numbers in the figures illustrate:

1 pressure machine table, 2 fixed moulds, 3 movable moulds, 4 electromagnets, 5 detection blocks, 51 detection ends, 52 extension ends, 53 support strips, 6 outer air films, 61 main films, 62 annular auxiliary films, 63 magnetic absorption layers, 7 inner liquid films, 8 marking powder, 81 inner iron cores, 82 colored paint layers and 83 liquid films.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, an automobile spare and accessory part inflatable metal stamping die comprises a pressure machine table 1, a fixed die 2 and a movable die 3 are installed at the upper end of the pressure machine table 1, the fixed die 2 is located on the lower side of the movable die 3, a plurality of detection grooves are formed in the fixed die 2, matched detection blocks 5 are arranged in the detection grooves, each detection block 5 comprises a detection end 51, an extension end 52 and a plurality of support bars 53, the extension ends 52 and the support bars 53 are fixedly connected to the lower end of the detection end 51, the extension ends 52 are located at the center, the support bars 53 are distributed around the extension ends 52 in an annular array mode, outer air films 6 are fixedly connected to the bottom walls of the detection grooves, the detection blocks 5 penetrate through the outer air films 6 and extend to the inner sides of the outer air films 6, marking powder 8 are distributed on the outer air films 6, and electromagnets 4 are installed at the inner end of the pressure machine table 1 in an embedded mode.

The detection end 51 is from last to the little round platform form that the diameter gradually diminishes gradually down, and its upper surface and detection groove notch phase-match, and only when the metal punching press satisfies the precision requirement, the detection end 51 just in time covers the detection groove and shields, in case when deviation or defect region appear, the detection end 51 can and leave the space between the detection groove, and mark powder 8 can be released out from the space and mark the defect region.

The distance between the bottom end of the extension end 52 and the bottom wall of the detection groove is consistent with the height of the detection end 51 extending out of the detection groove, when the metal stamping meets the requirement of precision, the detection end 51 just enters the detection groove, and the extension end 52 abuts against the bottom wall of the detection groove.

The bottom wall of the detection groove is also fixedly connected with an inner liquid film 7, the inner liquid film 7 is positioned at the inner side of the outer air film 6, and the extension end 52 also penetrates through the inner liquid film 7 and extends to the inner side thereof.

The inner liquid film 7 is filled with electrorheological fluid, the electrorheological fluid is electrically connected with an external power supply, the electrorheological fluid is characterized by being fluid under a normal state, normal movement of the detection block 5 can be met, the position of the detection block 5 is fixed by electrifying the detection block after stamping is finished, the position of the detection block 5 cannot deviate when the marking powder 8 is attracted and released through a magnetic field, and the situation that the detection groove is just covered after the detection block 5 moves is avoided.

Referring to fig. 5-7, the outer gas film 6 includes a main film 61, an annular auxiliary film 62 and a magnetic absorption layer 63, the annular auxiliary film 62 is embedded in the main film 61, the annular auxiliary film 62 corresponds to the support bars 53, the magnetic absorption layer 63 is attached to the inner surface of the annular auxiliary film 62, the marker powder 8 is adsorbed on the magnetic absorption layer 63, the magnetic absorption layer 63 temporarily stores the marker powder 8 in the annular auxiliary film 62 by adsorption, and the marker powder can be released to the outside along the support bars 53 after being thrown out, so that the marker powder is not easily blocked by the detection end 51, and the probability of successful marking is reduced.

It should be noted that the magnetism of the magnetic attraction layer 63 can attract the marker powder 8 without dropping, but the inertia force when the annular auxiliary membrane 62 is deformed and restored is larger than the magnetic attraction force, and the technician can adjust the magnetism of the magnetic attraction layer 63 appropriately.

The main film 61 and the annular auxiliary film 62 are both made of an elastic and air-impermeable material, and the elasticity of the annular auxiliary film 62 is superior to that of the main film 61, and after a magnetic field is applied by the electromagnet 4, the marking powder 8 is pressed against the annular auxiliary film 62 to be largely deformed, and the marking powder 8 is ejected when the shape is restored, so that marking is performed along the gap.

Referring to fig. 8-9, the marking powder 8 sequentially includes an inner iron core 81, a colored paint layer 82 and a liquid film 83 from inside to outside, the inner iron core 81 can be attracted by a magnetic field, the color of the colored paint layer 82 is obvious and can be visually marked, and the liquid film 83 can assist the inner iron core 81 to adhere to a defect area of metal and is not easy to directly fall off.

The inner core 81 is made of ferromagnetic material, and the liquid film 83 is a high viscosity liquid, and can be marked by covering the surface of the inner core 81 with color pigment.

Referring to fig. 10, the marking powder 8 includes a plurality of different particle sizes, and the maximum particle size is smaller than the difference between the minimum diameter of the detection end 51 and the width of the detection groove, and theoretically, the larger the deviation is during metal stamping, the larger the gap formed between the detection end 51 and the detection groove is, so that the marking powder 8 with the larger particle size can pass through smoothly, and the deviation can be basically obtained by judging the maximum particle size of the marking powder 8, thereby facilitating subsequent targeted processing.

The marking powder 8 can be granules or powder, the specific size is set according to the size and precision requirement of a punched product, and the marking powder can be actively recycled by the magnetic field of the electromagnet 4.

The invention can extrude the detection block 5 in the detection groove to enter the detection groove to be matched with the detection block through arranging the detection grooves at a plurality of positions on the fixed die when metal is punched, if deviation or shape rebound occurs, the detection block 5 can not integrally enter the detection groove but leave a gap, the electromagnet 4 is used for applying a magnetic field to the marking powder 8 to extrude the outer air film 6, then the magnetic field is removed under the expansion action of the outer air film 6, the marking powder 8 can be pushed out from the gap by using the inertia of an object to mark the deviation position, compared with the prior art, the invention can realize the detection of punching precision in the punching process and position a defect area.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an automobile parts physiosis formula metal stamping die, includes pressure board (1), cover half (2) and movable mould (3) are installed to pressure board (1) upper end, and cover half (2) are located movable mould (3) downside, its characterized in that: the utility model discloses a pressure machine, including cover half (2), cover half (2) is last to have seted up a plurality of detection grooves, be equipped with assorted detection piece (5) in the detection groove, detect piece (5) including detection end (51), extension end (52) and many support bars (53), extend the equal fixed connection in detection end (51) lower extreme of end (52) and support bar (53), and extend end (52) and be located center department, support bar (53) are around extending end (52) annular array distribution, fixedly connected with outer gas membrane (6) on the detection groove diapire, and detect piece (5) and run through outer gas membrane (6) and extend to its inboard, it has mark powder (8) to distribute on outer gas membrane (6), pressure machine (1) inner is installed and is inlayed electro-magnet (4), outer gas membrane (6) are including main membrane (61), annular auxiliary membrane (62) and magnetic absorption layer (63), annular auxiliary membrane (62) are inlayed and are connected on main membrane (61), and the annular pair of membrane (62) is corresponding with support bar (53), magnetism absorbs layer (63) and pastes and cover in annular pair of membrane (62) internal surface, and mark powder (8) adsorb on magnetism absorbs layer (63), mark powder (8) are from interior to exterior including interior iron core (81), colored paint layer (82) and liquid film (83) in proper order.

2. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the detection end (51) is in a circular truncated cone shape with the diameter gradually reduced from top to bottom, and the upper surface of the detection end is matched with the notch of the detection groove.

3. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the main membrane (61) and the annular auxiliary membrane (62) are both made of elastic and air-tight materials, and the elasticity of the annular auxiliary membrane (62) is superior to that of the main membrane (61).

4. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the inner iron core (81) is made of a ferromagnetic material, and the liquid film (83) is high-viscosity liquid.

5. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the marking powder (8) comprises a plurality of different particle sizes, and the maximum particle size is smaller than the difference between the minimum diameter of the detection end (51) and the width of the detection groove.

6. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the distance between the bottom end of the extension end (52) and the bottom wall of the detection groove is consistent with the height of the extension end (51) extending out of the detection groove.

7. The inflatable metal stamping die for automobile parts as claimed in claim 1, wherein: the bottom wall of the detection groove is also fixedly connected with an inner liquid film (7), the inner liquid film (7) is positioned on the inner side of the outer air film (6), and the extension end (52) also penetrates through the inner liquid film (7) and extends to the inner side of the inner liquid film.

8. The inflatable metal stamping die for automobile parts as claimed in claim 7, wherein: and the inner liquid film (7) is filled with electrorheological fluid which is electrically connected with an external power supply.