CN208467001U - The anti-rebound hold-down mechanism of lever in bending system - Google Patents
The anti-rebound hold-down mechanism of lever in bending system Download PDFInfo
- Publication number
- CN208467001U CN208467001U CN201820776379.9U CN201820776379U CN208467001U CN 208467001 U CN208467001 U CN 208467001U CN 201820776379 U CN201820776379 U CN 201820776379U CN 208467001 U CN208467001 U CN 208467001U
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- shaping
- lever
- die holder
- shaft
- driving unit
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Abstract
The utility model relates to the anti-rebound hold-down mechanisms of lever in bending system, including the pressure core being connect with upper die holder, the correcting die being connected with lower die holder, shaping unit, shaping unit includes shaping lever, it is set to the driving unit on lower die holder as the shaft of the fulcrum of shaping lever and for driving shaping lever, shaping lever is sheathed in shaft and has rotary freedom by the axis of the drives edge shaft of driving unit, the whole working face in side matched with correcting die is provided on shaping lever, shaft, driving unit is located at the two sides of the whole working face in side, the hold-down mechanism drives shaping lever to rotate along shaft by driving unit, realize the compression shaping to product, the compression shaping of product can be realized using the clear position on mold, inhibit product rebound, save cost, meet product quality requirement.
Description
Technical field
The utility model relates to the anti-rebound mechanisms in mold, the anti-rebound compression of lever specifically in bending system
Mechanism.
Background technique
Since automobile gradually develops to lightweight and safety direction, this just drives automobile production manufacturer for high intensity
The use of steel, aluminium alloy and composite material, with new diseases, it is common in sheet forming process that rebound phenomenon, which becomes,
Defect, has seriously affected the correctness and accuracy of mold design, what rebound made to design and manufacture according to the theoretical shape of part
The part that mold is produced does not meet the requirement of Element Design.Rebound is more scabrous problem for stamping parts of automobile,
Software analysis theories rebound compensation amount is only used at this stage, but cannot fully control rebound in this way, it is also necessary in the die debugging stage
The deficiency of analysis rebound compensation amount is made up, trimming is increased.Vertical flange rebound, it is often necessary to which inclined wedge carries out side shaping and adds
Work, but using the higher cost of inclined wedge, and for engineers, the wood is already made into a boat for mold, is difficult have space to be enough again rear
Phase increases wedge mechanism and realizes negative angle flange to compensate rebound.
Utility model content
In order to solve the above technical problems, the utility model provides the anti-rebound hold-down mechanism of lever in bending system, benefit
, effectively inhibition product rebound whole to the side of product is realized with the clear position on mold.
The technical solution adopted in the utility model is:
The anti-rebound hold-down mechanism of lever in bending system is connected including the pressure core connecting with upper die holder and lower die holder
Correcting die, shaping unit, it is critical that the shaping unit includes shaping lever, is set on lower die holder as shaping
The shaft of the fulcrum of lever and driving unit for driving shaping lever, shaping lever are sheathed in shaft and single by driving
The axis of the drives edge shaft of member has rotary freedom, is provided with the whole work in side matched with correcting die on shaping lever
Face, shaft, driving unit are located at the two sides of the whole working face in side.
The driving unit includes the first drive block being connected by eccentric shaft and upper die holder, is arranged on the first drive block
There is drive surface, be provided with matched with drive surface by drive surface on shaping lever, is provided with and shaping thick stick on the lower die holder
The retracting spring of bar connection.
The driving unit includes the second drive block being connected with upper die holder, is set on lower die holder by guide runner
Sliding block is provided with slotted hole on sliding block, and shaping lever is connect by the articulated shaft being set in slotted hole with sliding block, under described
The retracting spring of sliding block is provided on die holder.
The retracting spring is tension spring.
The cover board being provided on the lower die holder above shaping lever.
Stroke limit block, the backhaul limited block of shaping lever are respectively arranged on the lower die holder.
The beneficial effects of the utility model are: using shaft as the fulcrum of shaping lever, upper die holder band dynamic pressure core is by product
It compresses, driving unit drives shaping lever, and shaping lever is rotated along shaft, the whole working face in side and correcting die on shaping lever
The mating bending part by product carries out compression shaping, and bending part is made to generate negative angle, is eligible state, hold-down mechanism benefit after rebound
With lever principle, negative angle flange is realized, rationally using the clear position on mold, is easily installed, both improves product quality
It reduces the production cost again, realizes good economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1.
Fig. 2 is the structural schematic diagram of lower die holder after embodiment 1 is opened.
Fig. 3 is the assembling schematic diagram of embodiment 1 eccentric shaft and shaping lever.
Fig. 4 is the structural schematic diagram of the shaping unit of embodiment 2.
Fig. 5 is the structural schematic diagram of shaping unit after embodiment 2 is opened.
Fig. 6 is the structural schematic diagram of slotted hole.
In attached drawing, 1, upper die holder, 2, pressure core, 3, lower die holder, 4, correcting die, 5, shaping lever, 6, shaft, 7, backhaul bullet
Spring, 8, eccentric shaft, the 9, first drive block, 10, the whole working face in side, 11, cover board, 12, stroke limit block, 13, backhaul limited block,
14, the second drive block, 15, guide runner, 16, sliding block, 17, slotted hole, 18, articulated shaft.
Specific embodiment
The anti-rebound hold-down mechanism of lever in bending system is connected including the pressure core 2 connecting with upper die holder 1 and lower die holder 3
Correcting die 4, shaping unit, it is important to, the shaping unit includes shaping lever 5, is set on lower die holder 3 as whole
The shaft 6 of the fulcrum of shape lever 5 and driving unit for driving shaping lever 5, shaping lever 5 are sheathed in shaft 6 and borrow
It helps the axis of the drives edge shaft 6 of driving unit that there is rotary freedom, is provided on shaping lever 5 mating with correcting die 4
The whole working face 10 in side, shaft 6, driving unit are located at the two sides of the whole working face 10 in side.
Embodiment 1, as shown in Figure 1-3, the driving unit includes first to be connected by eccentric shaft 8 and upper die holder 1
Drive block 9 is provided with drive surface on first drive block 9, is provided on shaping lever 5 matched with drive surface by drive surface, institute
The retracting spring 7 connecting with shaping lever 5 is provided on the lower die holder 3 stated.Drive block 9 and 8 eccentric setting of eccentric shaft, drive block
9 are set on eccentric shaft 8 along the axis of eccentric shaft 8 with rotary freedom.Distinguish on eccentric shaft 8 positioned at the both ends of drive block 9
It is provided with safe spacing block, prevents drive block 9 from falling off, guarantees that processing work carries out safely.
Shaft 6 is positioned close to fulcrum of the one end of retracting spring 7 as shaping lever 5.Under original state, upper die holder 1,
Drive block 9, pressure core 2 rise, and retracting spring 7 is that nature, shaping lever 5 and correcting die 4 are arranged in angle.Lower die holder 3
On be respectively arranged with stroke limit block 12, the backhaul limited block 13 of shaping lever 5, work of the stroke limit block 12 to shaping lever 5
It is limited as position, backhaul limited block 13 forms limit to the shaping lever 5 of backhaul.
When work, the product to shaping is placed on correcting die 4, upper die holder 1 is with dynamic pressure core 2, drive block 3 to moving down
Dynamic, pressure core 2 first compresses product 3, is provided with spring between upper die holder 1 and pressure core 2, and upper die holder 1 continues to move down, driving
The drive surface of block 9, by driving face contact, generates driving force to shaping lever 5, shaping lever 5 is also right simultaneously with shaping lever 5
Drive block 9 generates opposition, while upper die holder 1 drives drive block 9 to continue to move down, axis of the drive block 9 along eccentric shaft 8
Rotation, drive block 9 are contacted with shaping lever 5 always, and squeezing shaping lever 5 rotates it along shaft 6, the side on shaping lever 5
Whole working face 10, until product is compressed shaping in place with the cooperation of correcting die 4, generates the bending part of product close to product 3
Negative angle, stroke limit block 12 limit shaping lever 5, prevent 5 excessive movement of shaping lever, mold damage, shaping lever
Retracting spring 7 elongates while 5 rotation；Then die sinking, upper die holder 1 drive drive block 9 to move up, and pressure core 2 gradually rises,
Shaping lever 5 is no longer influenced by the driving force of drive block 9, and retracting spring 7 is shunk, and reversely rotates shaping lever 5 along shaft 6,
Limit of the shaping lever 5 by backhaul limited block 13 prevents shaping lever 5 because of the excessive backhaul of inertia.Retracting spring 7 is tension spring,
Tension spring is able to bear the pulling force generated when shaping lever 5 rotates to it and generates accumulation of energy, makes shaping lever after the rise of drive block 9
5 returns.
Shaping lever 5 at negative angle, falls into the vertical flanging and restriking of product 3 in acceptability limit after the negative angle rebound of product 3.
The end of the cover board 11 being additionally provided with above shaping lever 5 on lower die holder 3, shaft 6 is arranged in cover board 11,
Axle sleeve matched with shaft 6 is additionally provided in cover board 11, the setting of axle sleeve prevents the abrasion of shaft 6 Yu cover board 11, replacement side
Just the service life of mold and is effectively extended.The setting of cover board 11 can prevent shaping lever 5 from play occurs, and guarantee mold
Safety in production.
Embodiment 2 is the another embodiment of driving unit, and as Figure 4-Figure 6, driving unit includes solid with upper die holder 1
The second drive block 14 even is set to the sliding block 16 on lower die holder 3, the direction of guide runner 15 and retracting spring by guide runner 15
7 telescopic direction is identical.It is provided with slotted hole 17 on sliding block 16, the escape groove of 5 end of shaping lever is additionally provided on sliding block 16,
The end of shaping lever 5 is set in escape groove and connect by the articulated shaft 18 being set in slotted hole 17 with sliding block 16, institute
The retracting spring 7 of sliding block 16 is provided on the lower die holder 3 stated.Second drive block 14 drives sliding block 16, converts vertical motion to
Horizontal rectilinear motion, sliding block 16 drive shaping lever 5 to rotate along shaft 6, make shaping lever by slotted hole 17 and articulated shaft 18
5 compress shaping with the mating bending part by product of correcting die 4.Embodiment 2 compared with Example 1 driving unit installation jail
It leans on, driveability more consolidates.Guide runner 15 forms limit slide guide to 16 two sides of sliding block, guarantees that sliding block 16 can be transported along straight line
It is dynamic, prevent deflection.
The utility model relates to hold-down mechanism be one end using lever principle, far from shaft 6 as driving end, by
Driving unit is that shaping lever 5 provides power, and fulcrum of the shaft 6 as shaping lever 5 makes shaping lever 5 rotate reality along shaft 6
Now to the compression shaping of product, the amplitude of oscillation of shaping lever 5 is small, effectively inhibits defect rate caused by product rebound, the hold-down mechanism
Occupied space, operating space are small, can be realized using space limited on mold, solve can not normal mounting routinely driving and
Wedge mechanism influences the problem of normal production, also needs the installation that increase die size is the rebound reservation inclined wedge that possible occur empty
Between, meet the design requirement of compact mold, production cost is minimized.
Claims (6)
1. the anti-rebound hold-down mechanism of lever in bending system, including the pressure core (2) being connect with upper die holder (1) and lower die holder (3)
Connected correcting die (4), shaping unit, it is characterised in that: the shaping unit includes shaping lever (5), is set to down
Driving unit on die holder (3) as the shaft (6) of the fulcrum of shaping lever (5) and for driving shaping lever (5), shaping thick stick
Bar (5) is sheathed on shaft (6) and has rotary freedom, shaping thick stick by the axis of the drives edge shaft (6) of driving unit
Be provided on bar (5) with correcting die (4) matched whole working face in side (10), shaft (6), driving unit are located at the whole work in side
Make the two sides of face (10).
2. the anti-rebound hold-down mechanism of lever in bending system according to claim 1, it is characterised in that: the driving
Unit includes the first drive block (9) being connected by eccentric shaft (8) and upper die holder (1), and the first drive block is provided with driving on (9)
Face, is provided on shaping lever (5) matched with drive surface by drive surface, is provided with and shaping thick stick on the lower die holder (3)
The retracting spring (7) of bar (5) connection.
3. the anti-rebound hold-down mechanism of lever in bending system according to claim 1, it is characterised in that: the driving
Unit includes the second drive block (14) being connected with upper die holder (1), by guide runner (15) is set to the sliding block on lower die holder (3)
(16), it is provided with slotted hole (17) on sliding block (16), shaping lever (5) is by the articulated shaft (18) being set in slotted hole (17)
It is connect with sliding block (16), the retracting spring (7) of sliding block (16) is provided on the lower die holder (3).
4. the anti-rebound hold-down mechanism of lever in bending system according to claim 2 or 3, it is characterised in that: described
Retracting spring (7) is tension spring.
5. the anti-rebound hold-down mechanism of lever in bending system according to claim 1, it is characterised in that: the lower die
The cover board (11) being provided on seat (3) above shaping lever (5).
6. the anti-rebound hold-down mechanism of lever in bending system according to claim 1, it is characterised in that: the lower die
Stroke limit block (12), the backhaul limited block (13) of shaping lever (5) are respectively arranged on seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776379.9U CN208467001U (en) | 2018-05-23 | 2018-05-23 | The anti-rebound hold-down mechanism of lever in bending system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776379.9U CN208467001U (en) | 2018-05-23 | 2018-05-23 | The anti-rebound hold-down mechanism of lever in bending system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208467001U true CN208467001U (en) | 2019-02-05 |
Family
ID=65218481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820776379.9U Expired - Fee Related CN208467001U (en) | 2018-05-23 | 2018-05-23 | The anti-rebound hold-down mechanism of lever in bending system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208467001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658122A (en) * | 2020-12-07 | 2021-04-16 | 东风汽车有限公司 | Continuous die without overlap edge |
| CN112792291A (en) * | 2020-12-21 | 2021-05-14 | 佛山市巨隆金属制品有限公司 | Shaping structure and cold header applying same |
-
2018
- 2018-05-23 CN CN201820776379.9U patent/CN208467001U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658122A (en) * | 2020-12-07 | 2021-04-16 | 东风汽车有限公司 | Continuous die without overlap edge |
| CN112658122B (en) * | 2020-12-07 | 2023-09-12 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Continuous die without overlapping edge |
| CN112792291A (en) * | 2020-12-21 | 2021-05-14 | 佛山市巨隆金属制品有限公司 | Shaping structure and cold header applying same |
| CN112792291B (en) * | 2020-12-21 | 2022-08-09 | 佛山市巨隆金属制品有限公司 | Shaping structure and cold header applying same |
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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: 20190205 |