CN204018514U - Exempt to clamp riveting die set - Google Patents
Exempt to clamp riveting die set Download PDFInfo
- Publication number
- CN204018514U CN204018514U CN201420152845.8U CN201420152845U CN204018514U CN 204018514 U CN204018514 U CN 204018514U CN 201420152845 U CN201420152845 U CN 201420152845U CN 204018514 U CN204018514 U CN 204018514U
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- workpiece
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- mold core
- lower mold
- die set
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Abstract
The utility model relates to mach technical field, disclose and exempt to clamp riveting die set, comprise upper die and lower die, described counterdie comprise be fixed on stamping machine die shoe, be inserted in described die shoe and the lower mold core that can vertically slide and the elastic component be arranged at therebetween, described patrix lower end is provided with the projection for punching press force, and described projection is provided with the adsorption structure for adsorbing the first workpiece.Exempting from the utility model clamps riveting die set, by absorption, workpiece is fixed, without the need to clamping, good to special shape workpiece adaptability, and can not defective work piece, in the process of punching press, absorption surface to be riveted location can be realized by the slippage of lower mold core, its automaticity is high, and production cost is low.
Description
Technical field
The utility model relates to mach technical field, particularly relates to and exempts to clamp riveting die set.
Background technology
Riveted joint is technological means common in machined, generally refers under stamping press effect, and two workpiece deform the process be fixed together, and in riveted joint, need riveting die set to be mounted in stamping machine, the stamping press provided by stamping machine is riveted.
Stamping machine many dependence material strip of the prior art transmits material loading, for the part that some shapes are special, the part of the circular arc that such as cannot clamp or the three-dimensional part itself having many places bending to be easily out of shape in transmission, be difficult to stationary positioned, manual positioning can only be relied on, manually workpiece is positioned in mould and locates, process, this processing mode human cost is high, and production automation degree is low.
Utility model content
The purpose of this utility model is to provide to be exempted to clamp riveting die set, and be intended to solve irregular peculiar part in prior art and be difficult to automatically locate in riveter, processing cost is high, the problem that production automation degree is low.
The utility model realizes like this, exempt to clamp riveting die set, comprise upper die and lower die, described counterdie comprise be fixed on stamping machine die shoe, be inserted in described die shoe and the lower mold core that can vertically slide and the elastic component be arranged at therebetween, described patrix lower end is provided with the projection for punching press force, and described projection is provided with the adsorption structure for adsorbing the first workpiece.
Further, described die shoe offers upper end open and the cavity vertically extended, and described lower mold core is inserted in described cavity, and the two is slidably matched, described lower mold core upper end geomery is identical with second workpiece, and described projection sectional dimension is less than the opening of described cavity.
Further, the described cavity degree of depth is greater than described lower mold core length, and the difference of the two is less than described projection thickness.
Further, described projection is provided with the absorption positioning chamber coordinated with described first workpiece shapes.
Further, described die shoe offers for avoiding the breach of interfering with described first workpiece.
Further, described adsorption structure comprises the through hole be opened on described projection, and described through hole is communicated with the negative pressure pump for providing subnormal ambient for described through hole.
Further, described lower mold core is provided with the first centre hole for abutting riveted joint place of described second workpiece, and inside is inserted with hard thimble.
Further, the described first through described lower mold core upper and lower end face of centre hole, described cavity lower end offers the second centre hole alignd with described first centre hole, and described hard thimble lower end is positioned in described second centre hole, and described first centre hole is inserted in upper end.
Further, described elastic component is spring, and cavity lower end offers the spring cavity vertically arranged, and described spring is positioned in described spring cavity, and upper end is connected to described lower mold core bottom surface.
Compared with prior art, exempting from the utility model clamps riveting die set, and utilize adsorption structure to be difficult to irregular peculiar part i.e. first absorption of workpieces of clamping in patrix, second workpiece is directly placed on counterdie.Because lower mold core can counterdie slippage relatively, punching course segmentation is carried out, and utilizes elastic component to cushion stamping press, makes workpiece to be punched contact with each other location before stamping, then carries out punching press.The mode that absorption is fixed is wide to the applicability of shape of product, can not make deformation of products because of mechanical grip, and automatically locate in the process of punching press, positioning precision is improved, and production automation degree also improves, and indirectly reduces production cost simultaneously.
Accompanying drawing explanation
The structural representation exempting to clamp riveting die set that Fig. 1 provides for the utility model embodiment;
The upper die structure schematic diagram exempting to clamp riveting die set that Fig. 2 provides for the utility model embodiment;
The counterdie internal structure schematic diagram exempting to clamp riveting die set that Fig. 3 provides for the utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Be described in detail below in conjunction with the realization of concrete accompanying drawing to the utility model illustrated embodiment.
As shown in Figure 1-Figure 3, exempt to clamp riveting die set 1, comprise patrix 11 and counterdie, counterdie comprises the die shoe 12 and lower mold core 121 that are fixed on stamping machine, and lower mold core 121 is inserted in die shoe 12, and can vertically slide, and is provided with elastic component therebetween.Patrix 11 is fixed on stamping machine punching press place, and its lower end is provided with projection 111, and projection 111 is provided with adsorption structure.
When the first workpiece 2 is riveted with second workpiece 3, in advance second workpiece 3 is positioned on position shown in lower mold core 121 Fig. 3, first workpiece 2 is adsorbed in by adsorption structure on the projection 111 of patrix 11 lower end, riveting process stage by stage by stamping machine drives patrix 11 to press down, specific as follows: 1) patrix 11 presses down and the first workpiece 2 is contacted with second workpiece 3; 2) patrix 11 continues to press down, and lower mold core 121 is stressed to be moved down, and under the buffering of elastic component, stamping press reduces, the pressure after second workpiece 3 and the first workpiece 2 are cushioned, and makes the two mutually be adjacent to.In the process be adjacent to, the riveted joint place correspondence of second workpiece 3 inserts riveted joint place of the first workpiece 2, completes the mutual location of the two; 3) lower mold core 121 is displaced downwardly to extreme position, and all impulsive forces of patrix 11 are passed to the first workpiece 2 and second workpiece 3 by projection 111, make it distortion, complete riveted joint.
Due to fixing by adsorbing between the first workpiece 2 and patrix 11, do not need clamping, the not shape of easy damaged first workpiece 2, pressed down by segmented, realize the contact between the first workpiece 2 and second workpiece 3 and location, finally rivet, decrease the human cost in special shape Workpiece fixing process, improve production automation degree, indirectly improve production efficiency and yields.
In actual applications, can also additional designs adsorbent equipment and feeding structure with the use of, make material loading also realize automation, enhance productivity.
As shown in Figure 1, Figure 3, die shoe 12 offers cavity 122, the upper end open of cavity 122, and inner vertical extends.Lower mold core 121 is inserted in cavity 122, and is slidably matched with it, can slippage in cavity 122.Lower mold core 121 upper end geomery is identical with second workpiece 3.Projection 111 sectional dimension is less than the opening of cavity 122, can go deep in cavity 122, and can not interfere with die shoe 12.Before production starts, regulate the position of lower mold core 121, make its lower mold core 121 upper end lower than cavity 122 opening, after second workpiece 3 being positioned over lower mold core 121 upper end, cavity 122 opening edge, along playing positioning action, limits the position of second workpiece 3.
The degree of depth of cavity 122 is greater than the length of lower mold core 121, and the difference of the two is less than projection 111 thickness.Namely when lower mold core 121 is displaced downwardly to extreme position, projection 111 still can be pressed on lower mold core 121 upper surface, for it applies stamping press.
As shown in Figure 1 and Figure 2, projection 111 is provided with absorption positioning chamber 112, absorption positioning chamber 112 shape and structure is identical with the first workpiece 2, is convenient to the first workpiece 2 and inserts.The bending structure if the first workpiece 2 has living space, correspondence arranges identical absorption positioning chamber 112 internal structure, can embed absorption positioning chamber 112, while location, avoid the first workpiece 2 to be out of shape.The first workpiece 2 in this enforcement has three-dimensional bending structure, so absorption positioning chamber 112 is designed to reentrant cylindrical cavity 122.
As shown in Figure 1, offer breach at die shoe 12, when lower mold core 121 moves down, the edge of the first workpiece 2 can go deep in breach, avoids interfering with counterdie and causes distortion even to affect riveted joint result.
The design of adsorption structure can have multiple, such as magnetic absorption, electrostatic adhesion etc., in the present embodiment, adsorption structure is adsorbed the first workpiece 2 by negative-pressure adsorption mode, it comprises the through hole be opened on projection 111, and connects negative pressure pump (not shown).Negative pressure pump is connected to through hole by pipeline, makes to form subnormal ambient in through hole by bleeding, thus is adsorbed on outside projection 111 by the first workpiece 2.
As shown in Figure 3, be by the process of workpiece mushrooming deformation because riveting process is actual, the process that the rivet deformation portion 31 namely in diagram is upsetting.In the process that pier is thick, sink in rivet deformation portion 31, and lower mold core 121 is provided with the first centre hole, and the first centre hole is positioned at lower end, rivet deformation portion 31, and inside is inserted with hard thimble.The head of hard thimble is connected to rivet deformation portion 31, and it can be avoided to sink.
The first centre hole through lower mold core 121 upper and lower end face in the utility model illustrated embodiment, offer the second centre hole alignd with the first centre hole in counterdie cavity 122 lower end, hard thimble lower end is positioned in the second centre hole, and the first centre hole is inserted in upper end.Except avoiding rivet deformation portion 31 and being out of shape, hard thimble can also play the effect of restriction lower mold core 121 glide direction, lower mold core 121 and die shoe 12 is mutually located.Centre hole and hard thimble are ripe prior art, and the angle in figure does not demonstrate, and can understand its physical location by rivet deformation portion 31.
The design of elastic component can have multiple, and energy cushion impact forces, can adopt resilient foam material, pneumatic buffer part etc., adopt the mode of spring in this enforcement.As shown in Figure 1, cavity 122 lower end offers the spring cavity 123 vertically arranged, and spring is placed in spring cavity 123, and upper end is connected to lower mold core 121 bottom surface, and spring cavity 123 can prevent spring from moving, again can restraining spring telescopic direction, extends its service life.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. exempt to clamp riveting die set, comprise upper die and lower die, it is characterized in that, described counterdie comprise be fixed on stamping machine die shoe, be inserted in described die shoe and the lower mold core that can vertically slide and the elastic component be arranged at therebetween, described patrix lower end is provided with the projection for punching press force, and described projection is provided with the adsorption structure for adsorbing the first workpiece.
2. exempt from as claimed in claim 1 to clamp riveting die set, it is characterized in that, described die shoe offers upper end open and the cavity vertically extended, described lower mold core is inserted in described cavity, and the two is slidably matched, described lower mold core upper end geomery is identical with second workpiece, and described projection sectional dimension is less than the opening of described cavity.
3. exempt from as claimed in claim 2 to clamp riveting die set, it is characterized in that, the described cavity degree of depth is greater than described lower mold core length, and the difference of the two is less than described projection thickness.
4. exempt from as claimed in claim 1 to clamp riveting die set, it is characterized in that, described projection is provided with the absorption positioning chamber coordinated with described first workpiece shapes.
5. exempt from as claimed in claim 1 to clamp riveting die set, it is characterized in that, described die shoe offers for avoiding the breach of interfering with described first workpiece.
6. exempt from as claimed in claim 1 to clamp riveting die set, it is characterized in that, described adsorption structure comprises the through hole be opened on described projection, and described through hole is communicated with the negative pressure pump for providing subnormal ambient for described through hole.
7. exempt from as claimed in claim 2 to clamp riveting die set, it is characterized in that, described lower mold core is provided with the first centre hole for abutting riveted joint place of described second workpiece, and inside is inserted with hard thimble.
8. exempt from as claimed in claim 7 to clamp riveting die set, it is characterized in that, the described first through described lower mold core upper and lower end face of centre hole, described cavity lower end offers the second centre hole alignd with described first centre hole, described hard thimble lower end is positioned in described second centre hole, and described first centre hole is inserted in upper end.
9. exempt from as claimed in claim 8 to clamp riveting die set, it is characterized in that, described elastic component is spring, and described cavity lower end offers the spring cavity vertically arranged, and described spring is positioned in described spring cavity, and upper end is connected to described lower mold core bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152845.8U CN204018514U (en) | 2014-03-31 | 2014-03-31 | Exempt to clamp riveting die set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152845.8U CN204018514U (en) | 2014-03-31 | 2014-03-31 | Exempt to clamp riveting die set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204018514U true CN204018514U (en) | 2014-12-17 |
Family
ID=52058426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152845.8U Expired - Fee Related CN204018514U (en) | 2014-03-31 | 2014-03-31 | Exempt to clamp riveting die set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204018514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931460A (en) * | 2017-11-14 | 2018-04-20 | 山东同创汽车散热装置股份有限公司 | One kind expansion positioner and squeeze riveter |
-
2014
- 2014-03-31 CN CN201420152845.8U patent/CN204018514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931460A (en) * | 2017-11-14 | 2018-04-20 | 山东同创汽车散热装置股份有限公司 | One kind expansion positioner and squeeze riveter |
| CN107931460B (en) * | 2017-11-14 | 2024-01-23 | 山东同创汽车散热装置股份有限公司 | Expansion positioning device and squeeze riveter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141217 |