CN209139587U - The adjustable mandril of drawing die and blank holder press structure - Google Patents
The adjustable mandril of drawing die and blank holder press structure Download PDFInfo
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- CN209139587U CN209139587U CN201821953503.0U CN201821953503U CN209139587U CN 209139587 U CN209139587 U CN 209139587U CN 201821953503 U CN201821953503 U CN 201821953503U CN 209139587 U CN209139587 U CN 209139587U
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- mandril
- blank holder
- drawing die
- threaded sleeve
- adjustable
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Abstract
The utility model discloses a kind of adjustable mandril of drawing die and blank holder press structure, the adjustable mandril of drawing die, including mandril lower section and mandril upper section, therebetween it is connected by screw thread elevating mechanism, the screw thread elevating mechanism includes threaded rod and threaded sleeve, and retaining mechanism is equipped between the threaded rod and threaded sleeve.Using the utility model has the beneficial effects that, operator is by adjusting screw thread elevating mechanism to adjust mandril length, mandril upper end can be made against blank holder, reduce each mandril to the pressure on top surface difference of blank holder, dramatically avoid unbalance loading problem, to guarantee pressure balance of the blank holder to pressed sheet material, guarantee stable product quality.
Description
Technical field
The utility model relates to punching die device fields, and in particular to a kind of adjustable mandril of drawing die and flanging
Circle press structure.
Background technique
In the drawing die using post rod mechanism, more mandrils, which act on blank holder, cooperates it with cavity plate, thus by material
Material compresses.The length of traditional mandril is fixed, and ejector pin of die set quantity 2~40 are differed.
In production, there is abrasion, local collapse in press machine lower part air cushion, mandril there are abrasion deformation, all mandrils
Length cannot be identical, and mold blank holder lower part is there are processing dimension error, situations such as ejector pin contact block is worn, may all lead
Cause drawing die in production, lower part mandril cannot completely homogeneously make blank holder stress.Cavity plate and blank holder gap state are not
Unanimously, blank holder is to the pressure imbalance of plate, and there are regional area pressure is excessive, and other area pressures are too small shows
As that is, so-called unbalance loading.The big region material flowing of pressure is slow, causes to crack；The small region material flowing of pressure is fast, occurs
Wrinkle.
Mandril will affect mold production to the press unbalanced phenomena of blank holder, cause part production bad.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of adjustable mandril of drawing die and drawing die flanging
Circle press structure.
Technical solution is as follows:
A kind of adjustable mandril of drawing die leads to therebetween it is critical that including mandril lower section and mandril upper section
It crosses screw thread elevating mechanism to be connected, which includes threaded rod and threaded sleeve, between the threaded rod and threaded sleeve
Equipped with retaining mechanism.
Using the above design, it the advantage is that operator according to the contact shape between each mandril upper end and blank holder
State, adjusting screw thread elevating mechanism is moved upwardly or downwardly mandril upper section, mandril upper end can be made against blank holder, or made
Long mandril shortens, and each mandril can be reduced to the pressure on top surface difference of blank holder by adjusting mandril one by one, dramatically avoids
Unbalance loading problem guarantees stable product quality to guarantee pressure balance of the blank holder to pressed sheet material.
As optimal technical scheme, above-mentioned retaining mechanism is the locking for being set on the threaded rod and being threadedly engaged with it
Ring, the retaining ring are located between the free end of the threaded sleeve and the connecting pin of the threaded rod.
Using the above design, so that one end is pushed against threaded sleeve by turning retaining ring, screw thread elevating mechanism can be locked
Tightly.
As optimal technical scheme, above-mentioned threaded rod is connected with the upper end of the mandril lower section, the threaded sleeve and institute
The lower end for stating mandril upper section is connected, and the retaining ring is between the threaded sleeve and the upper end of the mandril lower section.
Using the above design, rotation threaded sleeve rotates synchronously mandril upper section therewith to rise or fall, top can be realized
The length adjustment of bar.
As optimal technical scheme, the circumferential casing that is equipped with adjusts rod aperture on the outer wall of the threaded sleeve.
It is to be adjusted since operator station is difficult to contact mandril by arm outside lathe in casing using the above design
Rod aperture is inserted into adjusting rod, so that it is more laborsaving to turn threaded sleeve.
As optimal technical scheme, above-mentioned threaded rod is connected with the lower end of the mandril upper section, the threaded sleeve and institute
The upper end for stating mandril lower section is connected, and the retaining ring is between the threaded sleeve and the lower end of the mandril upper section.
Using the above design, rotation mandril upper section is allowed to rise or fall, and the length adjustment of mandril can be realized.
As optimal technical scheme, the circumferential mandril that is equipped with adjusts rod aperture on the outer wall of the mandril upper section.
Using the above design, rod aperture is adjusted in mandril and is inserted into adjusting rod, facilitates operation.
It is circumferential on the outer wall of the retaining ring to be equipped with locking adjusting rod aperture as optimal technical scheme.
Using the above design, personnel is avoided to reach mandril and unworkable problem, is inserted by adjusting rod aperture in mandril
Enter adjusting rod, so that it is convenient and strength-saving to turn retaining ring.
A kind of drawing die blank holder press structure, including lower die, lower die top are equipped with blank holder, correspond in the lower die
The blank holder is circumferentially distributed mandril perforation, and sliding is equipped with above-mentioned any one and is adjusted in each mandril perforation
Formula mandril.
Using the above design, by changing the length of adjustable mandril, so that top of each mandril upper end to blank holder
Pressure is consistent.
The utility model has the advantages that using the utility model has the beneficial effects that operator according to each mandril upper end and blank holder
Between contact condition, adjust screw thread elevating mechanism be moved upwardly or downwardly mandril upper section, mandril upper end can be made against pressure
Flange, or shorten too long mandril, each mandril can be reduced to the pressure on top surface difference of blank holder, pole by adjusting mandril one by one
Unbalance loading problem is avoided to big degree, to guarantee pressure balance of the blank holder to pressed sheet material, guarantees stable product quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the structural schematic diagram of the screw thread elevating mechanism of embodiment one；
Fig. 3 is the structural schematic diagram of embodiment two；
Fig. 4 is the structural schematic diagram of the screw thread elevating mechanism of embodiment two；
Fig. 5 is the structural schematic diagram of retaining ring and adjusting rod；
Fig. 6 is the structural schematic diagram of embodiment three.
Specific embodiment
Below with reference to embodiment and attached drawing, the utility model is described in further detail.
Embodiment one
As illustrated in fig. 1 and 2, the adjustable mandril of a kind of drawing die, including mandril lower section 4 and mandril upper section 1, the two it
Between by screw thread elevating mechanism 2 be connected, the screw thread elevating mechanism 2 include threaded rod 21 and threaded sleeve 22,21 He of threaded rod
Retaining mechanism 3 is equipped between threaded sleeve 22.
Specifically, the retaining mechanism 3 is to be set in the retaining ring being threadedly engaged on the threaded rod 21 and with it, the lock
Tight ring is located between the free end of the threaded sleeve 22 and the connecting pin of the threaded rod 21.
The upper end of the mandril lower section 4 is integrally formed integrally formed with the threaded rod 21, the lower end of the mandril upper section 1
There is the threaded sleeve 22.
To solve the problems, such as that operator station reaches outside lathe mandril and unworkable, as shown in figure 5, for convenience of adjusting
Section, the circumferential casing that is equipped with adjusts rod aperture 23 on the outer wall of the threaded sleeve 22, and circumferential direction is set on the outer wall of the retaining ring
There is locking to adjust rod aperture 31.Described sleeve pipe adjusts rod aperture 23 or locking adjusts rod aperture 31 and can be processed into consistent size, is correspondingly provided with
Independent adjusting rod 5 when needing to carry out length adjustment, protrudes into described sleeve pipe using adjusting rod 5 and adjusts rod aperture 23 or locking adjusting
Rod aperture 31, so that rotation is relatively labor-saving.
Rotating the threaded sleeve 22 makes the upper-end contact blank holder of mandril, then turns retaining ring against the spiral shell
Line casing 22, can locking screw thread elevating mechanism 2, keep the length stabilisation of mandril.
Embodiment two
The difference is that, as shown in Figures 3 and 4, the lower end of the mandril upper section 1 is integrally formed with embodiment one
It states threaded rod 21 to be connected, the upper end of the mandril lower section 4 is integrally formed with the threaded sleeve 22.In the mandril upper section 1
The circumferential mandril that is equipped with adjusts rod aperture 11 on outer wall.
The retaining ring is adjusted on the mandril between the threaded sleeve 22 and the lower end of the mandril upper section 1
Section 1 makes end in contact blank holder thereon, then turning retaining ring makes it abut the threaded sleeve 22, i.e. lockable mandril makes its holding
Length.
Embodiment three
A kind of drawing die blank holder press structure is equipped with blank holder b above lower die a as shown in fig. 6, including lower die a,
Correspond to that the blank holder b is circumferentially distributed mandril perforation on the lower die a, sliding is equipped with one in each mandril perforation
The lower end of adjustable mandril c in root embodiment one or two, the adjustable mandril c are equipped with punching machine air cushion d.
When the upper end of the adjustable mandril c in part does not push against blank holder b, then make the upper end by rotating mandril upper section 1
Against blank holder b.Since, there are when gap, rotation mandril upper section 1 is more light between the upper end and blank holder b of mandril upper section 1,
And when pushing against, it is rotated further by mandril upper section 1 then more arduously, operator can judge whether adjustable mandril c holds out against accordingly, make
The upper end for obtaining each adjustable mandril c pushes against blank holder b.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Multiple similar expressions, such transformation are each fallen within the protection scope of the utility model.
Claims (8)
1. a kind of adjustable mandril of drawing die, it is characterised in that: including mandril lower section (4) and mandril upper section (1), the two it
Between by screw thread elevating mechanism (2) be connected, which includes threaded rod (21) and threaded sleeve (22), the spiral shell
Retaining mechanism (3) are equipped between rasp bar (21) and threaded sleeve (22).
2. the adjustable mandril of drawing die according to claim 1, it is characterised in that: the retaining mechanism (3) is set
It is located at the retaining ring being threadedly engaged on the threaded rod (21) and with it, which is located at the freedom of the threaded sleeve (22)
Between end and the connecting pin of the threaded rod (21).
3. the adjustable mandril of drawing die according to claim 2, it is characterised in that: the threaded rod (21) with it is described
The upper end of mandril lower section (4) is connected, and the threaded sleeve (22) is connected with the lower end of the mandril upper section (1), the retaining ring
Between the threaded sleeve (22) and the upper end of the mandril lower section (4).
4. the adjustable mandril of drawing die according to claim 3, it is characterised in that: in the threaded sleeve (22)
The circumferential casing that is equipped with adjusts rod aperture (23) on outer wall.
5. the adjustable mandril of drawing die according to claim 2, it is characterised in that: the threaded rod (21) with it is described
The lower end of mandril upper section (1) is connected, and the threaded sleeve (22) is connected with the upper end of the mandril lower section (4), the retaining ring
Between the threaded sleeve (22) and the lower end of the mandril upper section (1).
6. the adjustable mandril of drawing die according to claim 5, it is characterised in that: in the mandril upper section (1)
The circumferential mandril that is equipped with adjusts rod aperture (11) on outer wall.
7. according to the adjustable mandril of drawing die described in claim 2~6 any one, it is characterised in that: in the lock
It is circumferential on the outer wall of tight ring to be equipped with locking adjusting rod aperture (31).
8. a kind of drawing die blank holder presses structure, including lower die (a), it is equipped with blank holder (b) above the lower die (a), under described
Correspond to that the blank holder (b) is circumferentially distributed mandril perforation on mould (a), it is characterised in that: sliding in each mandril perforation
It is dynamic to be equipped with adjustable mandril (c) described in claim 1~7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953503.0U CN209139587U (en) | 2018-11-23 | 2018-11-23 | The adjustable mandril of drawing die and blank holder press structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953503.0U CN209139587U (en) | 2018-11-23 | 2018-11-23 | The adjustable mandril of drawing die and blank holder press structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209139587U true CN209139587U (en) | 2019-07-23 |
Family
ID=67287428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821953503.0U Active CN209139587U (en) | 2018-11-23 | 2018-11-23 | The adjustable mandril of drawing die and blank holder press structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802174A (en) * | 2019-11-25 | 2020-02-18 | 奇瑞汽车股份有限公司 | Drawing die with anti unbalance loading structure |
| CN111589930A (en) * | 2020-05-14 | 2020-08-28 | 安徽江淮汽车集团股份有限公司 | Ejector rod mechanism and stamping die |
-
2018
- 2018-11-23 CN CN201821953503.0U patent/CN209139587U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802174A (en) * | 2019-11-25 | 2020-02-18 | 奇瑞汽车股份有限公司 | Drawing die with anti unbalance loading structure |
| CN111589930A (en) * | 2020-05-14 | 2020-08-28 | 安徽江淮汽车集团股份有限公司 | Ejector rod mechanism and stamping die |
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