CN203917623U - A kind of punching die structure - Google Patents
A kind of punching die structure Download PDFInfo
- Publication number
- CN203917623U CN203917623U CN201420294274.1U CN201420294274U CN203917623U CN 203917623 U CN203917623 U CN 203917623U CN 201420294274 U CN201420294274 U CN 201420294274U CN 203917623 U CN203917623 U CN 203917623U
- Authority
- CN
- China
- Prior art keywords
- convex tendon
- push rod
- draw
- blank holder
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of punching die structure that is applied to auto parts and components punching press tooling device technical field, on the lower mould body (1) of described punching die structure, blank holder body (2) is set, blank holder body (2) arranges push rod (3) below, push rod bottom surface with under touch body (1) and contact, convex tendon mount pad (5) is drawn in push rod (3) upper surface setting, draw upper installation of convex tendon mount pad (5) and draw convex tendon (6), draw convex tendon (6) and be set to be positioned at the structure between blank holder cutter piece (7) and push rod (3), structure of the present utility model, make to draw the state that convex tendon is in use the work of never working, the power being applied to during its work on plate is also a process increasing gradually, do not have like this that plate is occurred when moulding is wrinkling, draw the problems such as insufficient, and the pressure that draws convex tendon when plate forming starts is less, plate can well flow into die cavity, can not make plate cracking and necking down.
Description
Technical field
The utility model belongs to punch machining equipment for automotive component technical field, more particularly, relates to a kind of punching die structure.
Background technology
Along with the fast development of auto industry, automotive safety part is as more and more extensive in the application of beam class high strength plate in body structure.But along with automobile high-strength plate is bent strong continuous increase, and general die cavity is darker, so the phenomenon such as plate easily ftractures in die for molding process, wrinkling, resilience.The drawing die of high-strength plate moulding need to arrange bead and control cracking, wrinkling, resilience.Whether the setting of drawing under many circumstances convex tendon is reasonable, directly determining stamping success or failure.Existing automobile panel high-strength plate drawing die draws convex tendon and is generally round muscle or semicircle muscle and square muscle, as a whole for drawing convex tendon groove and body on blank holder.In high-strength plate drawing process, in order to make the abundant moulding of plate, avoid folded material or wrinkling, resilience, need larger pressure-pad-force, but pressure-pad-force is large, high-strength plate yield tensile ratio is larger, plate mobile bad, plate there will be and ftractures or secretly split.Regulate downforce or establish to become and draw convex tendon geomery, changing pressure-pad-force is an important step in high-strength plate debug process, but taking turns change, each all can cause debugging the prolongation of fabrication cycle, and sometimes cannot regulate downforce or establish to become and draw convex tendon and change pressure-pad-force to plate cracking and wrinkling, resilience and draw the contradiction between insufficient, can not adapt to current auto vendor to the Mold Making cycle and with the demand of quality.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of simple in structure, when upper mould body contacts with lower mould body, the dynamics contacting with upper mould body of drawing being positioned on lower mould body constantly increases, pressure-pad-force constantly increases, thereby avoids the plate of processing to occur wrinkling, to draw insufficient problem punching die structure.
Solve above-described technical problem, the technical scheme that the utility model is taked is:
The utility model is a kind of punching die structure, comprise mould body, lower mould body, on described lower mould body, blank holder body is set, below blank holder body, push rod is set, push rod bottom surface contacts with lower mould body, and convex tendon mount pad is drawn in the setting of push rod upper surface, draw on convex tendon mount pad and install and draw convex tendon, draw convex tendon and be set to the structure between blank holder cutter piece and push rod.
Described push rod is arranged in push rod groove, the upper position of push rod groove arranges left boss and right boss, push rod upper end is connected with the dead piece of pier, the dead piece of pier with draw convex tendon mount pad and be connected, the dead piece of pier can be stuck in the structure on left boss and right boss while being set to move down.
The described convex tendon that draws comprises body and convex rib part, body with draw convex tendon mount pad side and be fixedly connected with, convex rib part is set to list structure, convex rib part cross section is inverted L shape structure, body is set to be positioned at the structure of blank holder cutter piece lower position, convex rib part is set to the structure with the laminating of blank holder cutter piece side, and blank holder body is set to the structure that can move downward under upper mould body pressure.
Described drawing on convex tendon mount pad arranges positive stop lug boss, the body that draws convex tendon is resisted against on positive stop lug boss, the convex tendon upper end of drawing the convex rib part of convex tendon is set to protrude from the structure of the cutter piece upper surface of blank holder cutter piece, and the dead piece of pier is set to the plate structure that cross section is rectangle.
Adopt the technical solution of the utility model, can obtain following beneficial effect:
Punching die structure of the present utility model, when upper mould body contacts initial position with lower mould body, drawing convex tendon does not stress, in off position, such structure, make to draw the state that convex tendon is in use the work of never working, the power being applied to during its work on plate is also a process increasing gradually, do not have like this make plate when moulding, occur wrinkling, draw the problems such as insufficient, and the pressure that draws convex tendon when plate forming starts is less, plate can well flow into die cavity, can not make plate cracking and necking down.
Accompanying drawing explanation
The expressed content of each accompanying drawing of this description and the mark in figure are made to brief description below:
Fig. 1 be punching die structure described in the utility model draw the idle view of convex tendon;
View when Fig. 2 is drawing convex tendon and working completely of punching die structure described in the utility model;
Plan structure schematic diagram when Fig. 3 is drawing convex tendon and drawing convex tendon mount pad and be connected of punching die structure described in the utility model;
Reference numeral is: 1, lower mould body; 2, blank holder body; 3, push rod; 4, convex tendon upper end; 5, draw convex tendon mount pad; 6, draw convex tendon; 7, blank holder cutter piece; 8, push rod groove; 9, left boss; 10, right boss; 11, the dead piece of pier; 12, body; 13, convex rib part; 14, positive stop lug boss; 15, clearance portion.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present utility model is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle etc.:
As shown in accompanying drawing 1-accompanying drawing 3, the utility model is a kind of punching die structure, comprise mould body, lower mould body 1, arranges blank holder body 2 on described lower mould body 1, and blank holder body 2 sides arrange push rod 3, push rod 3 bottom surfaces contact with lower mould body 1, convex tendon mount pad 5 is drawn in push rod 3 upper surface settings, draws on convex tendon mount pad 5 and installs and draw convex tendon 6, draws convex tendon 6 and is set to the structure between blank holder cutter piece 7 and push rod 3.
Described push rod 3 is arranged in push rod groove 8, the upper position of push rod groove 8 arranges left boss 9 and right boss 10, push rod 3 upper ends are connected with the dead piece 11 of pier, the dead piece 11 of pier with draw convex tendon mount pad 5 and be connected, the dead piece 11 of pier can be stuck in the structure on left boss 9 and right boss 10 while being set to move down.
The described convex tendon 6 that draws comprises body 12 and convex rib part 13, body 12 with draw convex tendon mount pad 5 sides and be fixedly connected with, convex rib part 13 is set to list structure, convex rib part 13 cross sections are inverted L shape structure, body 12 is set to be positioned at the structure of blank holder cutter piece 7 lower positions, convex rib part 13 is set to the structure with the 7 side laminatings of blank holder cutter piece, and blank holder body 2 is set to the structure that can move downward under upper mould body pressure.
Described drawing arranges positive stop lug boss 14 on convex tendon mount pad 5, the body 12 that draws convex tendon 6 is resisted against on positive stop lug boss 14, the convex tendon upper end 4 of drawing the convex rib part 13 of convex tendon 6 is set to protrude from the structure of the cutter piece upper surface of blank holder cutter piece 7, and the dead piece 11 of pier is set to the plate structure that cross section is rectangle.
The object of structure of the present utility model is to overcome deficiency of the prior art: in prior art, high-strength plate blank holder draws convex tendon and blank holder body is integrated, blank holder is contacting with upper mould body one, draw convex tendon just in complete duty, pressure-pad-force can be larger, and plate yield tensile ratio is larger, in die cavity between upper mould body and lower mould body, during moulding, plate flows into die cavity difficulty, can cause plate cracking or necking down.If it is little to draw the pressure-pad-force of convex tendon in whole drawing and moulding process, there will be again plate wrinkling, draw insufficient problem.
The described convex tendon 6 use screw lock of drawing are being drawn on convex tendon mount pad 5, and the described convex tendon mount pad 5 that draws has guidance quality with blank holder body 1, can guarantee to draw the steady jack-up of convex tendon 6 and whereabouts.
Described push rod 3 lower surfaces and the dead piece of pier 11 upper surfaces are stressed to be contacted frequently, needs the high heat treatment of being on the point of during design.Draw convex tendon 6 materials and adopt forging state Cr12Mo1V1 or SKD11, need overall vacuum heat treatment.
Punching die structure of the present utility model, when upper mould body contacts initial position with lower mould body, draws convex tendon and does not stress, and in off position, when plate forming, plate can well flow into die cavity like this, can not make plate cracking and necking down.In prior art, drawing convex tendon and blank holder body is integral type structure, be arranged on blank holder body on lower mould body after contacting with upper mould body, draw convex tendon just in complete duty, the pressure-pad-force being applied on plate can be larger, plate yield tensile ratio is larger, flows into die cavity difficulty in plate forming process, can cause plate cracking or necking down.Meanwhile, in plate forming process, if pressure-pad-force is too small, have again make plate wrinkling, draw insufficiently, be difficult to equally guarantee plate forming quality.Punching die structure described in the utility model, when upper mould body does not contact work with lower mould body, draw convex tendon and blank holder body is not all worked, when the downward application of force of upper mould body arrives lower mould body, blank holder body is under pressure, but be separated position owing to drawing between convex tendon and blank holder body, and draw and between convex tendon and blank holder cutter piece, have gap (coordinating for H9/h8), at bead mount pad and drawing under convex tendon Gravitative Loads, mould draws convex tendon and draws convex tendon mount pad in off working state (free state) in off working state, upper mould body downwards just the application of force when the lower mould body, draw convex tendon and can not be subject to the impact of the power of mould body, therefore draw convex tendon in off position, when upper mould body continues the application of force to lower mould body, the power that blank holder body is subject to continues to increase, the size of drawing the clearance portion between convex tendon and blank holder cutter piece is also dwindled gradually, until draw the body of convex tendon, lean on blank holder cutter piece, at this moment, draw convex tendon and start to be subject to the power from upper mould body, meanwhile, the dead BOB(beginning of block) of pier is resisted against on left boss and right boss, prevention is drawn convex tendon and is moved down, at this moment, drawing convex tendon starts to work together with blank holder body, the convex rib part that draws convex tendon also starts on the plate in the die cavity of the application of force between upper mould body and lower mould body, along with blank holder body is constantly descending under the pressure-acting of upper mould body, the power that bead is subject to is also increasing, until draw, when leaning on blank holder cutter piece, the body of convex tendon reaches maximum.Such structure, make to draw the state that convex tendon is in use the work of never working, and the power being applied to during its work on plate is also a process increasing gradually, power during to the last moulding reaches maximum, do not have like this make plate when moulding, occur wrinkling, draw the problems such as insufficient, and the pressure that draws convex tendon when plate forming starts is less, plate can well flow into die cavity, can not make plate cracking and necking down.
By reference to the accompanying drawings the utility model has been carried out to exemplary description above; obviously the concrete realization of the utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technical scheme to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasions, all in protection domain of the present utility model.
Claims (4)
1. a punching die structure, comprise mould body, lower mould body (1), it is characterized in that: on described lower mould body (1), blank holder body (2) is set, blank holder body (2) arranges push rod (3) below, push rod (3) bottom surface contacts with lower mould body (1), convex tendon mount pad (5) is drawn in push rod (3) upper surface setting, draw upper installation of convex tendon mount pad (5) and draw convex tendon (6), draw convex tendon (6) and be set to be positioned at the structure between blank holder cutter piece (7) and push rod (3).
2. punching die structure according to claim 1, it is characterized in that: described push rod (3) is arranged in push rod groove (8), the upper position of push rod groove (8) arranges left boss (9) and right boss (10), push rod (3) upper end is connected with the dead piece of pier (11), the dead piece of pier (11) with draw convex tendon mount pad (5) and be connected, the dead piece of pier (11) can be stuck in the structure on left boss (9) and right boss (10) while being set to move down.
3. punching die structure according to claim 1 and 2, it is characterized in that: the described convex tendon (6) that draws comprises body (12) and convex rib part (13), body (12) with draw convex tendon mount pad (5) side and be fixedly connected with, convex rib part (13) is set to list structure, convex rib part (13) cross section is inverted L shape structure, body (12) is set to be positioned at the structure of blank holder cutter piece (7) lower position, convex rib part (13) is set to the structure with the laminating of blank holder cutter piece (7) side, blank holder body (2) is set to the structure that can move downward under upper mould body pressure.
4. punching die structure according to claim 3, it is characterized in that: described drawing arranges positive stop lug boss (14) on convex tendon mount pad (5), the body (12) that draws convex tendon (6) is resisted against on positive stop lug boss (14), the convex tendon upper end (4) of drawing the convex rib part (13) of convex tendon (6) is set to protrude from the structure of the cutter piece upper surface of blank holder cutter piece (7), and the dead piece of pier (11) is set to the plate structure that cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294274.1U CN203917623U (en) | 2014-06-04 | 2014-06-04 | A kind of punching die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294274.1U CN203917623U (en) | 2014-06-04 | 2014-06-04 | A kind of punching die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917623U true CN203917623U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294274.1U Expired - Fee Related CN203917623U (en) | 2014-06-04 | 2014-06-04 | A kind of punching die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203917623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801610A (en) * | 2015-04-24 | 2015-07-29 | 富士瑞鹄技研（芜湖）有限公司 | Automobile covering element punching mold structure |
-
2014
- 2014-06-04 CN CN201420294274.1U patent/CN203917623U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801610A (en) * | 2015-04-24 | 2015-07-29 | 富士瑞鹄技研（芜湖）有限公司 | Automobile covering element punching mold structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee after: RAYHOO MOTOR DIES CO.,LTD. Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee before: RAYHOO MOTOR DIES Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |