CN201394612Y - Punch structure of hole-flanging device - Google Patents
Punch structure of hole-flanging device Download PDFInfo
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- CN201394612Y CN201394612Y CN2009201187236U CN200920118723U CN201394612Y CN 201394612 Y CN201394612 Y CN 201394612Y CN 2009201187236 U CN2009201187236 U CN 2009201187236U CN 200920118723 U CN200920118723 U CN 200920118723U CN 201394612 Y CN201394612 Y CN 201394612Y
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- hole flanging
- punch structure
- hole
- groove
- workspace
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Abstract
The utility model discloses a punch structure of hole-flanging device, comprising a hole reaming area and a working area; wherein the lower end of the working area is provided with a groove circumferentially. The punch structure is provided with a groove, for broaching and cutting the inner hole of work piece, thereby confirming the verticality, smoothness and ellipticity of flanged holes.
Description
Technical field
The utility model relates to a kind of hole flanging device, relates in particular to a kind of punch structure of hole flanging device.
Background technology
In the production process of some workpiece, often need process the end face that is used to assemble, for example process the annulus that is used to connect in a side of flange, realize being connected or weld and fix etc. with socket, the bearing of other part.Hole flanging is a kind of relatively more commonly used and convenient mode in this type of processing method.
The method of general hole flanging be on flat board directly towards bottom outlet hole flanging again, hole flanging is a kind of stamping procedure of material being translated into around the bottom outlet edge-on flange.
The hole flanging device generally comprises power drive, punch, positioner, and workpiece to be processed is fixed to clamp, and power drive drives punch hole flanging on workpiece.At present general punch structure as shown in Figure 1, comprise reaming district 110 and workspace 120, reaming district 110 makes the workpiece bottom outlet enlarge along with the increase of reaming district diameter, and workspace 120 makes be squeezed power and be shaped to hole flanging to be processed, the technology simple and fast of the bottom outlet after the expansion.
From foregoing description as can be known, hole flanging is exactly the process of a plastic deformation in fact.But because the fillet of workpiece part and marginal portion all are the deformed areas, the technology of a reaming of above-mentioned employing and extruding, cause the discontinuity of workpiece easily, cause the plasticity of material to flow not smooth, often follow in the process hole flanging break, wrinkling, lose circle, inner hole wall fineness is bad and generation of defects such as horn mouth, has a strong impact on the quality and the life-span of product.
The utility model content
The utility model is at deficiency of the prior art, a kind of punch structure simple in structure is provided, punch structure of the present utility model has been used in the hole flanging device, can process quality hole flanging preferably, do not produce and break, and guarantee perpendicularity, fineness and the ovality of hole flanging with wrinkling.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of punch structure of hole flanging device comprises reaming district, workspace, and the lower end edge of described workspace circumferentially is provided with groove.
Further, described groove inwall angulation is 80～100 °.
Further, described groove number is two.
Further, upper end, described workspace is isometrical cylinder, the lower end from groove to the bottom narrow contracting, the narrow angle that contracts is 1 °～2 °.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
(1) punch structure of the present utility model is used in the hole flanging device, in flange hole technology, the thick reaming in workpiece bottom outlet process reaming earlier district, again through little reaming of end toper under the workspace, make bottom outlet after the thick reaming that the process of a buffering and fine setting be arranged, prevent that effectively it from breaking with wrinkling, and improve the perpendicularity and the circularity of the hole flanging that processes.
(2) punch structure of the present utility model is provided with the rectangular groove of inwall, and the workpiece endoporus is played the effect of broaching, makes hole flanging inwall fineness good, and further improves the perpendicularity and the circularity of hole flanging.
Description of drawings
Fig. 1 is the schematic diagram of background technology punch structure.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the A place enlarged drawing of Fig. 2.
Fig. 4 is the structural representation of the hole flanging that uses the utility model and process.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Referring to accompanying drawing 1～4, a kind of punch structure of hole flanging device comprises reaming district 1, workspace 2, and the lower end 21 of described workspace 2 is along circumferentially being provided with groove 3.
As a specific embodiment of the present utility model, the upper end 20 of described workspace 2 is isometrical cylinder, lower end 21 from groove 3 to the bottom narrow contracting, the narrow angle beta that contracts is 1 °～2 °, makes lower end, workspace 21 tapered.In the hole flanging process, the workpiece bottom outlet is earlier through the thick reaming in reaming district 1, again through little reaming of lower end, workspace 21 tapers, makes bottom outlet after the thick reaming that the process of a buffering and fine setting be arranged, prevent that effectively it from breaking with wrinkling, and improve the perpendicularity and the circularity of the hole flanging that processes.
The lower end 21 of described workspace 2 is provided with the identical groove of two-strip structure 3, groove 3 is set herein, can plays the effect of broaching tool, promptly when workpiece through herein the time, 3 pairs of workpiece inner hole walls of groove play broaching, to improve fineness, perpendicularity and the circularity of workpiece inner hole wall.
Be provided with two grooves 3,3 pairs of workpiece of article one groove carry out rough cut, and 3 pairs of workpiece of second groove carry out the essence cutting, by twice cutting, effectively guarantee perpendicularity, fineness and the ovality of hole flanging madial wall.
As preferably, described groove 3 inwall angulation a are 80～100 °, both can guarantee the rigidity of groove 3 itself, can guarantee again workpiece cutting intensity of force.
Operation principle: punch structure of the present utility model is used in the hole flanging device, is ￠ 42.5mm with aperture to be processed, and the hole flanging of Kong Gaowei 10mm is the specific embodiment explanation:
On workpiece, process the bottom outlet of ￠ 32.5mm, and workpiece is clamped on the positioner, lower end diameter ￠ 32mm is made in the reaming district 1 of punch structure, upper end diameter ￠ 42mm, the narrow angle beta that contracts of lower end, workspace 21 tapers is 1 ° 45 ' 44 "; groove 3 inwalls meet at right angles, and upper end, workspace 20 diameters are ￠ 42.5mm.Add man-hour, 1. with the lower end aligned workpiece bottom outlet in reaming district 1, start power drive, make punch structure descending, along with the increase of reaming district 1 diameter, the aperture of workpiece bottom outlet increases to ￠ 42mm and turns over down, the formation hole flanging; 2. punch structure continues descending, lower end, workspace 21 contacts with hole flanging and carries out little reaming, make the aperture of hole flanging be extended to ￠ 42.5mm, hole flanging after the thick reaming is carried out little reaming, make hole flanging that the process of a buffering and fine setting be arranged, prevent that effectively it from breaking with wrinkling, and improve the perpendicularity and the circularity of the hole flanging that processes; 3. the punch structure continuation is descending, makes hole flanging carry out a rough cut and once smart cutting under the effect of groove 3, improves fineness, perpendicularity and the circularity of hole flanging inwall; 4. the punch structure continuation is descending, and upper end 20, workspace offsets with the hole flanging inwall, and the hole flanging inwall power that is squeezed is also finalized the design; 5. machine, withdraw from workpiece.
The utility model is simple in structure, and is easy to operate, and the hole flanging hole wall that uses the utility model punch structure to process is linearly, and fineness reaches more than 6.3, and ovality can guarantee that quality is good between 0.05～0.1.
Claims (4)
1, a kind of punch structure of hole flanging device comprises reaming district (1), workspace (2), it is characterized in that, the lower end (21) of described workspace (2) is along circumferentially being provided with groove (3).
2, the punch structure of hole flanging device according to claim 1 is characterized in that, described groove (3) inwall angulation is 80～100 °.
3, the punch structure of hole flanging device according to claim 1 is characterized in that, described groove (3) number is two.
4, the punch structure of hole flanging device according to claim 1 is characterized in that, the upper end (20) of described workspace (2) is isometrical cylinder, lower end (21) from groove to the bottom narrow contracting, the narrow angle that contracts is 1 °～2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201187236U CN201394612Y (en) | 2009-04-27 | 2009-04-27 | Punch structure of hole-flanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201187236U CN201394612Y (en) | 2009-04-27 | 2009-04-27 | Punch structure of hole-flanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394612Y true CN201394612Y (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201187236U Expired - Fee Related CN201394612Y (en) | 2009-04-27 | 2009-04-27 | Punch structure of hole-flanging device |
Country Status (1)
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| CN (1) | CN201394612Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513446A (en) * | 2011-12-02 | 2012-06-27 | 无锡晶心精密机械有限公司 | Plate type workpiece hole flanging mold |
| CN103056220A (en) * | 2011-10-21 | 2013-04-24 | 林栢村 | Punch with groove structure and micro-stretching forming device applying punch |
| CN104525714A (en) * | 2014-12-24 | 2015-04-22 | 上海新申金属制品有限公司 | End plate machining and manufacturing method |
| CN104998976A (en) * | 2015-08-21 | 2015-10-28 | 江苏久日数控机床有限公司 | Bending tool for CNC bending machine |
| CN105149453A (en) * | 2015-09-23 | 2015-12-16 | 无锡市中捷减震器有限公司 | Cold punching device applied to integrated process of hole-flanging and chamfering |
| CN107243555A (en) * | 2017-07-05 | 2017-10-13 | 苏州市天星山精密模具有限公司 | A kind of high-precision thinner flanging mould |
-
2009
- 2009-04-27 CN CN2009201187236U patent/CN201394612Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056220A (en) * | 2011-10-21 | 2013-04-24 | 林栢村 | Punch with groove structure and micro-stretching forming device applying punch |
| CN102513446A (en) * | 2011-12-02 | 2012-06-27 | 无锡晶心精密机械有限公司 | Plate type workpiece hole flanging mold |
| CN104525714A (en) * | 2014-12-24 | 2015-04-22 | 上海新申金属制品有限公司 | End plate machining and manufacturing method |
| CN104998976A (en) * | 2015-08-21 | 2015-10-28 | 江苏久日数控机床有限公司 | Bending tool for CNC bending machine |
| CN105149453A (en) * | 2015-09-23 | 2015-12-16 | 无锡市中捷减震器有限公司 | Cold punching device applied to integrated process of hole-flanging and chamfering |
| CN107243555A (en) * | 2017-07-05 | 2017-10-13 | 苏州市天星山精密模具有限公司 | A kind of high-precision thinner flanging mould |
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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 |
Granted publication date: 20100203 Termination date: 20160427 |