CN210996077U - Hinge blank pressing blanking deep-drawing mould - Google Patents
Hinge blank pressing blanking deep-drawing mould Download PDFInfo
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- CN210996077U CN210996077U CN201921645916.7U CN201921645916U CN210996077U CN 210996077 U CN210996077 U CN 210996077U CN 201921645916 U CN201921645916 U CN 201921645916U CN 210996077 U CN210996077 U CN 210996077U
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- blanking
- deep drawing
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Abstract
The utility model discloses a hinge blank pressing blanking deep drawing mould, including upper die base, die holder, deep-drawing die, deep-drawing terrace die and ejector pad, the top of ejector pad is equipped with the push rod, and the bottom of ejector pad contacts with the deep-drawing terrace die, and the deep-drawing terrace die sets up in the die holder, and the push rod sets up in the upper die base, its characterized in that still includes compression spring, spring holder, pull rod, guide pin bushing and connecting rod, the one end of connecting rod links to each other with the bottom of deep-drawing die, and the other end passes through hinged joint with compression spring's one end and L type pull rod's one end, the other end of pull rod passes through the guide pin bushing and links to each other with the upper die base, compression spring, pull rod and connecting rod are two sets, and two compression spring's tip pass through the hinge formula blank pressing structure that changes along with the deep-drawing power, effectively solved the conflict of finished piece surface and crease-resistance fracture, improved production efficiency, alleviateed operating personnel.
Description
Technical Field
The utility model belongs to the technical field of the deep-drawing mould, especially, relate to a hinge blank pressing blanking deep-drawing mould.
Background
The trial-manufactured part is made of a 08F steel plate, and the die is guided by a rear guide pillar and a guide sleeve and is formed on a double-action press. And (3) analyzing the manufacturability of the workpiece: the deep drawing depth of the workpiece shown in FIG. 3 is large, and if a conventional spring or rubber deep drawing die structure is adopted, the volume of the workpiece needs to be large enough; in the forming process, the blank holder force is continuously increased, and the drawing force cannot be adapted to increase from small to large. The tendency of the material to change from large to small thereafter. Is not beneficial to ensuring the edge-drawing effect and the drawing quality.
Therefore, how to solve the above-mentioned drawbacks of the prior art becomes the direction of efforts of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hinge blank pressing blanking deep-drawing mould can solve above-mentioned prior art's weak point completely.
The utility model aims at realizing through the following technical scheme that a hinge blank pressing blanking deep drawing mould, including upper die base, die holder, deep-drawing die, deep-drawing terrace die and ejector pad, the top of ejector pad is equipped with the push rod, and the bottom of ejector pad contacts with the deep-drawing terrace die, and the deep-drawing terrace die sets up in the die holder, and the push rod sets up in the upper die base, its characterized in that still includes compression spring, spring holder, pull rod, guide pin bushing and connecting rod, the one end of connecting rod links to each other with the bottom of deep-drawing die, and the other end passes through hinged joint with compression spring's one end and L type pull rod's one end, the other end of pull rod passes through the guide pin bushing and links to each other with the upper die base, compression spring, pull rod and connecting rod are two sets, and two compression spring's tip pass through the.
The drawing die further comprises an upper backing plate, a flange die shank, a cylindrical pin and a screw, wherein the upper backing plate and the drawing die are fixedly connected through the cylindrical pin, and the upper die base and the flange die shank are fixedly connected through the screw.
As one of the preferable modes, the blanking die comprises a blanking die, a die holder, a blanking plate and a countersunk screw, wherein the blanking die is fixedly connected with the die holder through the countersunk screw, and the die holder is fixedly connected with the blanking plate through the countersunk screw; the blanking female die and the female die holder are arranged on the outer side surface of the drawing female die.
As one of the preferable modes, the drawing die further comprises a gasket and a third hexagonal nut, wherein the third hexagonal nut is arranged on the periphery of the drawing male die, and the gasket is arranged between the third hexagonal nut and the drawing male die.
As one of the preferable modes, the spring seat further comprises a sleeve seat and a positioning sleeve, the sleeve seat is arranged on the periphery of the spring seat, and the positioning sleeve is arranged at the bottom of the spring seat.
Preferably, the part is placed in the deep drawing female die, and a blank holder is arranged outside the part.
Preferably, a guide post is disposed at the bottom of the guide sleeve, and the bottom of the guide post is fixed to the lower die holder.
Compared with the prior art, the beneficial effects of the utility model reside in that: hinge blank pressing blanking deep-drawing mould possesses following advantage:
1. the hinge type blank pressing structure with the blank pressing force changing along with the drawing force is adopted, so that the contradiction of crease resistance and fracture resistance of the surface of a workpiece is effectively solved;
2. the blanking, deep drawing and punching are combined into a die structure of one process, so that the production efficiency is improved, and the labor intensity of operators is reduced;
3. the die is simple in structure, convenient to operate, convenient to replace and adjust individual parts in the edge pressing mechanism, capable of meeting requirements of workpieces of different specifications on edge pressing force, capable of reducing production efficiency and capable of shortening production period.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
Fig. 2 is a schematic view of the plane of depression structure of the present invention.
Fig. 3 is a schematic structural view of the die machined part of the present invention.
Fig. 4 is a second schematic structural view of the die machined part according to the present invention.
In the drawings: the die comprises a lower die holder 1, a guide pillar 2, an inner hexagon screw 3, a pull rod 4, a guide sleeve 5, a second inner hexagon screw 6, an upper die holder 7, a push rod holder 8, a flange die shank 9, a screw 10, a cylindrical pin 11, an upper backing plate 12, a push rod 13, a drawing female die 14, a pushing block 15, a countersunk screw 16, a blanking female die 17, a workpiece 18, a female die holder 19, a blank holder 20, a lower backing plate 21, a gasket 22, a connecting rod 23, a third hexagon nut 24, a sleeve holder 25, a positioning sleeve 26, a spring seat 27, a cylindrical helical compression spring 28 and a drawing male die 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, a hinge blank-pressing blanking deep drawing die comprises an upper die holder 7, a lower die holder 1, a deep drawing female die 14, a deep drawing male die 29 and a pushing block 15, wherein a push rod 13 is arranged at the top end of the pushing block 15, the bottom end of the pushing block 15 is in contact with the deep drawing male die 29, the deep drawing male die 29 is arranged in the lower die holder 1, the push rod 13 is arranged in the upper die holder 7, the hinge die further comprises a compression spring 28, a spring seat 27, a pull rod 4, a guide sleeve 5 and a connecting rod 23, one end of the connecting rod 23 is connected with the bottom of the deep drawing female die 14, the other end of the connecting rod 23 is connected with one end of the compression spring 28 and one end of the L-type pull rod 4 through a hinge, the other end of the pull rod 4 is connected with the upper die holder 7 through the guide sleeve 5, the compression spring, the pull rod 4.
The die comprises an upper backing plate 12, a flange die shank 9, a cylindrical pin 11 and a screw 10, wherein the upper backing plate 12 and a drawing die 14 are fixedly connected through the cylindrical pin, and the upper die base 7 and the flange die shank 9 are fixedly connected through the screw 10.
The blanking die 17 is fixedly connected with the die holder 19 through the countersunk head screw 16, and the die holder 19 is fixedly connected with the blanking plate 21 through the countersunk head screw 16; the blanking female die and the female die holder 19 are arranged on the outer side surface of the drawing female die 14.
The drawing punch further comprises a gasket 22 and a third hexagon nut 24, the third hexagon nut 24 is arranged on the periphery of the drawing punch 29, and the gasket 22 is arranged between the third hexagon nut and the drawing punch.
The spring seat is characterized by further comprising a sleeve seat 25 and a positioning sleeve 26, wherein the sleeve seat 25 is arranged on the periphery of the spring seat, and the positioning sleeve is arranged at the bottom of the spring seat.
The workpiece 18 is placed in the drawing die 14, and a blank holder 20 is arranged outside the workpiece.
The bottom of the guide sleeve 5 is provided with a guide pillar 2, and the bottom of the guide pillar 2 is fixed on the lower die holder 1.
The utility model provides a than chain blank pressing blanking deep-drawing compound die that punches a hole. The variable blank pressing force compound die integrates the three processes of blanking, deep drawing and punching, the volume of a spring generating the blank pressing force is small, the blank pressing force changes along with the variation trend of the deep drawing force in the whole deep drawing process, the die structure is compact, the blank pressing effect is good, and the surface of a workpiece is effectively prevented from cracking. The punch-die 13 is connected with the upper template 7 through an upper backing plate 11, a bolt 6 and a cylindrical pin 11. The lower end of the male die and the lower end of the female die are conical. The upper die base 7 is connected with an outer slide block of the press machine through a die handle 9. The blanking female die 16 is connected with the lower die plate 1 through a female die holder 18, a lower backing plate 20, a cylindrical head screw 3 and a countersunk head screw. The drawing punch 22 is mounted on the lower mat 20 by means of a double screw head 28, a washer 29. The center of the drawing convex die is provided with a through hole so that the punched hole cutting net falls. The punching die 15 is provided with a return spring 14, and the upper end part of the punching die is abutted against the bottom of the cylindrical hole of the punch-die 13. The push rod seat 8 is connected with an inner slide block of the press, and is connected with a push rod 12 at the lower part, so that the formed product can be pushed out.
Initial state before upper die descending: the punch and die 13 is above the unloading plate and blank, and the blank holder spring 27 and the pull rod 4 are in the position I shown in the figure. And (5) descending the upper die and blanking. And the upper die continues to descend for stretching. At this time, the pressing ring 19 presses the blank, and the pressing spring is compressed and increases the pressing force as the ejector rod 21 moves downward. When the ejector rod moves downwards to the position II, the spring is not pressed to the limit position, the edge pressing force reaches the maximum, and the corresponding drawing force reaches the maximum at the moment. And then, along with the reduction of the drawing force and the downward movement of the ejector rod, the spring is gradually relaxed, and the blank holding force is gradually reduced until the working stroke is finished until the stroke position II. Finally, when one working stroke is finished and the upper die moves upwards, the blank holder spring 27 is restored to the initial position I through the pull rod 4.
The conical female die is adopted in the drawing process, so that blanks enter a gap between the male die and the female die to shrink to a certain extent, the instability resistance is increased, the wrinkling tendency is reduced, the friction resistance and the deformation resistance caused by the fillet radius of the female die are reduced, and the drawing forming is facilitated. The taper is related to factors such as drawing diameter height, wall thickness and the like, and can be obtained by calculation and table lookup.
In addition, when the lower end of the pull rod is connected with the positioning sleeve, a fork-shaped structure is adopted, the operation is convenient and reliable, and the cylindrical pin hole for connecting the upper end of the pull rod with the guide sleeve is expanded into a short groove, so that the interference in operation can be avoided, and the impact is reduced.
The working process of the die comprises the following steps:
1. pressing materials: the blank is installed through a guide ruler and a stop pin, the conical end of the male die and the conical end of the female die are connected with the blank, and the upper end of a blank pressing graph is attached to the blank.
2. Blanking:
and when the upper die descends to the edge pressing mechanism to press the blank, the convex-concave die and the blanking concave die are blanked by the Jiangxi unscrambler.
3. Drawing:
after blanking, the punch-die and the drawing punch draw the blank into a cylindrical shape, and in the drawing process, the blank holder spring is compressed to provide the blank holder force required by drawing and the size of the blank holder force is changed along with the change of the drawing force.
4. Punching: after the drawing is finished, the punching die punches holes on the end face of the blank according to the preset position, after the punching, the restoring spring resets, and the punching cutting is discharged through the internal control of the drawing male die and the end distribution of the sleeve seat. Resetting the mould: and after the punching is finished, the upper die moves upwards, the workpiece is pushed out of the convex-concave die through the action of the push rod seat and the push rod with the circular plate at the end part, and the workpiece is taken out. When the upper die moves upwards, the pull rod is lifted, and the blank pressing spring is reset to the position I. And finishing one working cycle of the die.
The utility model discloses a theory of operation does:
and in the initial working stroke state, the male die is drawn, the upper end surface of the blanking female die is parallel and level, the blank is installed through the guide ruler and the stop pin, the conical section of the male die and the conical section of the female die are connected with the blank, and the blank holder is tightly attached to the blank for pressing. And when the upper die moves downwards to the blank pressing mechanism to press the blank, the male die and the female die perform blanking. After blanking, the punch-die and the drawing punch carry out drawing on the blank, in the drawing process, the blank holder spring is compressed to provide the blank holder force required by drawing, and the size of the blank holder force is changed along with the change of the drawing force.
The utility model discloses technical requirement when in-service use:
1. the parts must be cleaned before assembly, no burrs, flashes, oxide skin, cutting, dust, oil stains and the like exist, and the parts are not allowed to be collided, knocked and scratched in the assembly process.
2. During assembly, the uniform and consistent gaps between the male die and the female die are ensured, the fit gap meets the design requirement, and the gap is not allowed to be corrected by adopting a male die and female die deformation method.
3. The male die and the female die are matched with the fixed plate according to H7/m6, so that the working stability and reliability are ensured.
4. The tolerance of the unmarked position is in GB/T1184-1996, wherein the tolerance grades of the straightness, the planeness and the coaxiality are in C grade.
5. The screws for fastening must not loosen and ensure that the cross sections of the screws and pins cannot protrude out of the upper and lower die holder planes.
6. And (3) carrying out high-frequency quenching on the part, tempering at 350-370 ℃, and HRC 40-45.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A hinge blank pressing blanking deep drawing die comprises an upper die base, a lower die base, a deep drawing female die, a deep drawing male die and a push block, wherein a push rod is arranged at the top end of the push block, the bottom end of the push block is in contact with the deep drawing male die, the deep drawing male die is arranged in the lower die base, the push rod is arranged in the upper die base, the hinge blank pressing blanking deep drawing die is characterized by further comprising a compression spring, a spring base, a pull rod, a guide sleeve and a connecting rod, one end of the connecting rod is connected with the bottom of the deep drawing female die, the other end of the connecting rod is connected with one end of the compression spring and one end of an L type pull rod through a hinge, the other end of the pull rod is connected with the upper die base through the guide sleeve, the compression spring, the.
2. The hinge blank pressing, blanking and deep drawing die of claim 1, characterized in that: the drawing die is characterized by further comprising an upper base plate, a flange die handle, a cylindrical pin and a screw, wherein the upper base plate is fixedly connected with the drawing die through the cylindrical pin, and the upper die base is fixedly connected with the flange die handle through the screw.
3. The hinge blank pressing, blanking and deep drawing die of claim 1, characterized in that: the blanking die is fixedly connected with the die holder through the countersunk head screw, and the die holder is fixedly connected with the blanking plate through the countersunk head screw; the blanking female die and the female die holder are arranged on the outer side surface of the drawing female die.
4. The hinge blank pressing, blanking and deep drawing die of claim 1, characterized in that: the three-position deep drawing male die further comprises a gasket and a three-position hexagon nut, wherein the three-position hexagon nut is arranged on the periphery of the deep drawing male die, and the gasket is arranged between the three-position hexagon nut and the deep drawing male die.
5. The hinge blank pressing, blanking and deep drawing die of claim 1, characterized in that: the spring seat is characterized by further comprising a sleeve seat and a positioning sleeve, wherein the sleeve seat is arranged on the periphery of the spring seat, and the positioning sleeve is arranged at the bottom of the spring seat.
6. The hinge blank pressing, blanking and deep drawing die of claim 1, characterized in that: and the bottom of the guide sleeve is provided with a guide pillar, and the bottom of the guide pillar is fixed on the lower die base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645916.7U CN210996077U (en) | 2019-09-29 | 2019-09-29 | Hinge blank pressing blanking deep-drawing mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645916.7U CN210996077U (en) | 2019-09-29 | 2019-09-29 | Hinge blank pressing blanking deep-drawing mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210996077U true CN210996077U (en) | 2020-07-14 |
Family
ID=71468776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921645916.7U Expired - Fee Related CN210996077U (en) | 2019-09-29 | 2019-09-29 | Hinge blank pressing blanking deep-drawing mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210996077U (en) |
-
2019
- 2019-09-29 CN CN201921645916.7U patent/CN210996077U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20210929 |