CN1171691C - T-shaped component extrusion and fixation process and special pressing cutter - Google Patents
T-shaped component extrusion and fixation process and special pressing cutter Download PDFInfo
- Publication number
- CN1171691C CN1171691C CNB011264977A CN01126497A CN1171691C CN 1171691 C CN1171691 C CN 1171691C CN B011264977 A CNB011264977 A CN B011264977A CN 01126497 A CN01126497 A CN 01126497A CN 1171691 C CN1171691 C CN 1171691C
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- extruding
- pressing
- angle
- connecting process
- forming cutter
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- 238000003825 pressing Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 title description 3
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241001529734 Ocimum Species 0.000 description 2
- 235000010676 Ocimum basilicum Nutrition 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention relates to a process for fixedly connecting T-shaped components made of plastic metal and a special pressing cutter thereof. The invention is that the special pressing knife (2) is a cylinder, the lower opening is a flat circumference cutting edge, the invention process is to first mount the upper member (1) processed, the lower member (3) into T-shaped member, then place on the pressure machine, the pressure passes the special pressing knife (2) that is fitted outside the cylindrical upper member (1), make the circumference cutting edge on the lower member (3), surround the root of the upper member (1) and extrude, the material of the department makes the centripetal deformation because of cutting and extruding, thus wrap up the convex ring (4) of the root of the upper member (1) tightly, make the upper and lower members firm-connected into a whole. The invention has simple and reliable process, avoids various defects of a welding method, improves the product precision and reduces the production cost.
Description
Technical field
The present invention relates to the metallic article process technology, relate in particular to the compression joint technique and the specific purpose tool of T type member with certain plastic metal material.
Background technology
In existing T type member (as the valve body) processing, the consolidation method between vertical member (top of valve body) and the horizontal element (valve body following) generally adopts welding, is exactly will be through independent accurately machined vertical member, and horizontal element is welded into T shape integral body.There are many shortcomings in this technology: welding high temperature, welding stress can produce distortion, influence original precision; In order to eliminate stress, have to increase annealing operation; In order to ensure the member precision, need after annealing, to carry out again fine finishining, and the inside fine finishining of this moment is more much more difficult than original single-piece work; In a word to ensure precision and reduce cost unfavorable.
Summary of the invention
The present invention need solve problem be: the present invention is directed to above-mentioned technological deficiency, replace welding with extruding and connecting process and come extruding and connecting to be processed into T font member, reached simple and reliable process, no longer include welding stress, improved precision, the purpose that reduces production costs.
The present invention is achieved by the following technical solution: there is the upper member of a protruding circle of ring-type that outwards protrudes the bottom, is after the lower member on plane is done metal cutting processing respectively with the face that passes through mutually that upper member passes through mutually, the two tight fit is just adorned again be combined into T shape.When latus rectum during less than 25mm, just dress is in conjunction with taking interference fit, the magnitude of interference to be controlled in 0.02～0.08mm, and the faying face of upper valve body and following valve body is fitted fully when just adorning; When latus rectum during greater than 25mm, just dress is in conjunction with adopting to be threaded.Then the above-mentioned T of dress just shape member is placed on the forcing press, be nested with a columnar pressing and forming cutter outside upper member, cutter hub internal diameter and upper member outside dimension are approaching substantially, and certain clearance is arranged, and this gap is good with 0.5mm.Forcing press is exerted pressure to pressing and forming cutter, the circumference blade of pressing and forming cutter pushes the last plane of lower member, extrude V-arrangement annulus indent one, the inboard material of indent is done entad distortion because of being squeezed, tightly wrap the protruding circle of ring-type of upper member root, make " T " font of the affixed one-tenth of lower member integral body.Pressing and forming cutter according to sharp, the blunt degree of its blade be divided into two kinds or multiple more than, use earlier sharp tackle during extruding, blunt knife is used in the back, takes turns as one, changes pressing and forming cutter in case of necessity, and with bigger pressure, repeat aforementioned extruding, carry out taking turns above repeatedly extruding, each applied pressure then strengthens one by one, (pressure limit is 50～60 tons) is until the affixed intensity and the sealing that reach expection.
Special pressing and forming cutter of the present invention is a cylindrical shape, and its cutter hub is that hollow is simplified, and the cylindrical shell lower end is smooth circumference cutting edge.The sharp blunt sharp tackle and the blunt knife of being divided into of its blade; The tool point angle α of sharp tackle
1And α
2, α wherein
1=47 °～44 °, optimum value is α
1=47 °; α
2=25 °～40 °, optimum value is α
2=32 °, and α
1+ α
2＜85 °; The tool point angle α of blunt knife
1' and α
2', α wherein
1'=49 °～45 °, optimum value is α
1'=49 °; α
2'=28 °～43 °, optimum value is α
2'=34 °, and α
1'+α
2＜90 °.The thickness of pressing and forming cutter cutter hub is to guarantee that it is principle that sufficient intensity is arranged, and general wall thickness is 10mm.The material of pressing and forming cutter is cold mould steel, cutter head HRC60～64 of partly hardening.Before each the use, the circumference cutting edge of pressing and forming cutter ground repair, check, guarantee the smooth of cutting edge, one of the basil is shown and is ensured and pressed part stress.
Compared with prior art, the advantage that the present invention has: simple and reliable process, no longer include welding stress, improved precision, reduced production cost.
Description of drawings:
Fig. 1 is the vertical cut-away view of the embodiment of the invention;
Fig. 2 is the vertical cut-away view of special pressing and forming cutter of the present invention;
Fig. 3 is a technology extrusion process schematic diagram of the present invention;
The specific embodiment:
As first embodiment of the invention (most preferred embodiment), see Fig. 1, be the application on LA one-way throttle valve, AL throttling check valve.Upper valve body 1, following valve body 3 are done metal cutting processing respectively, the one protruding circle 4 of ring-type that outwards protrudes is arranged at the bottom of described upper valve body 1, after upper valve body 1, following valve body 3 tight fits, tentatively be fixed as a T font spare, the above-mentioned T of dress just shape part is placed on the forcing press (not shown), be nested with a pressing and forming cutter 2 outside upper valve body 1, the cutter hub of described pressing and forming cutter 2 (see figure 2)s is a hollow cylindrical body, and the cylinder lower end is smooth circumference cutting edge.Its blade sharp blunt be divided into sharp tackle 2 ' and blunt knife 2 "; Sharp tackle 2 ' tool point angle α
1And α
2, wherein get α
1Optimum value be 47 °; α
2Optimum value be 32 °; Blunt knife 2 " tool point angle α
1' and α
2', wherein get α
1' optimum value be 49 °, α
2' optimum value be α
2'=34 °, the wall thickness of pressing and forming cutter 2 is 10mm, is furnished with 0.5mm gap 5 between cutter hub internal diameter and upper valve body 1 external diameter.Forcing press is to pressing and forming cutter 2 F that exerts pressure, and its extrusion process (see figure 3) was undertaken by the step, the first step with the sharper sharp tackle 2 of blade ', sharp tackle 2 ' tool point angle α
1And α
2(getting optimum value is α
1=47 ° of α
2=32 °), at pressure F
1Under=55 tons the effect, the circumference blade of pressing and forming cutter extrudes V-arrangement annulus indent one around the place of upper valve body 1 root on following valve body 3 planes, and its degree of depth is h
1, the material of annular groove inboard is because of the extruding that is subjected to radial component entad takes place, downward plastic deformation, the hoop of formation wraps the protruding circle 4 of the root of upper valve body 1 tightly, makes up and down that valve body is affixed to be T shape integral body, more than shown in the I of Fig. 3.In second step, change pressing and forming cutter 2 into the more blunt blunt knife of blade 2 ", and with bigger pressure F
2=56 tons of (F
2＞F
1) carry out the extruding second time, because F
2＞F
1, blunt knife 2 " basil α
1'=49 °, α
2'=34 ° of (α
1'＞α
1, α
2'＞α
2), thereby the normal component of force N that inwardly pushes
2Than the normal component of force N first time
1Bigger, make that to form the V-ring groove already darker (be h
2＞h
1), suitable for reading wideer, the hoop of groove inboard more closely wraps the protruding circle 4 of the root of upper valve body 1, makes affixed intensity stronger, better tightness, more than shown in the II of Fig. 3.Three, the 4th step be use in regular turn again sharp tackle 2 ', blunt knife 2 ", and with bigger pressure F
3=57 tons and F
4=58 tons of (its F
4＞F
3＞F
2) carry out second take turns repeat the extruding, shown in III, the IV of Fig. 3.Along with the increase one by one of pressure, the degree of depth of V-ring groove is constantly deepened, i.e. h
1＜h
2＜h
3＜h
4, the plastic deformation of annular groove inside material is also all the more entad tightened, and until the complete filling gap between the valve body joint portion up and down, and wraps the protruding circle 4 of upper valve body 1 root securely, reaches the affixed intensity and the sealing of expection.
Embodiment two, and the difference of present embodiment and embodiment one is the lower limit of the tool point angle of used pressing and forming cutter 2 for the scope of getting, and the forcing press (not shown) is less to the power that pressing and forming cutter 2 applies.When pushing by the first step of the first above-mentioned embodiment, with the sharper sharp tackle 2 of blade ', sharp tackle 2 ' tool point angle α
1And α
2, value is α
1=45 ° of α
2=25 °, at pressure F
1Under=50 tons the effect, push, make up and down that valve body is affixed to be T shape integral body, shown in the I of Fig. 3 by above-mentioned.In second step, when pushing, change pressing and forming cutter 2 into the more blunt blunt knife of blade 2 by second step of the first above-mentioned embodiment ", the tool point angle of pressing and forming cutter is got α
1'=46 ° of α
2'=28 °, pressure is got F
2=51 tons, carry out the extruding second time, because F
2＞F
1, α
1'＞α
1, α
2'＞α
2, thereby the normal component of force N that inwardly pushes
2Than the normal component of force N first time
1Bigger, make that to form the V-ring groove already darker (be h
2＞h
1), suitable for reading wideer, the hoop of groove inboard more closely wraps the protruding circle 4 of the root of upper valve body 1, more than shown in the II of Fig. 3.Three, the 4th step be use in regular turn again sharp tackle 2 ', blunt knife 2 ", and with bigger pressure F
3=52 tons and F
4=53 tons of (its F
4＞F
3＞F
2) carry out second take turns repeat the extruding, shown in III, the IV of Fig. 3.After carrying out many wheel extruding, reach the affixed intensity and the sealing of expection.
Embodiment three, and the difference of present embodiment and embodiment one is the higher limit of the tool point angle of used pressing and forming cutter 2 for the scope of getting, and the forcing press (not shown) is bigger to the power that pressing and forming cutter 2 applies.When pushing by the first step of the first above-mentioned embodiment, with the sharper sharp tackle 2 of blade ', sharp tackle 2 ' tool point angle α
1And α
2, value is α
1=44 ° of α
2=40 °, at pressure F
1Under=56 tons the effect, push, make up and down that valve body is affixed to be T shape integral body, shown in the I of Fig. 3 by above-mentioned.The tool point angle of ", pressing and forming cutter 2 " is got α in second step, by second step of the first above-mentioned embodiment when pushing, to change pressing and forming cutter 2 into the more blunt blunt knife of blade 2
1'=46 ° of α
2'=43 °, pressure is got F
2=57 tons, carry out the extruding second time, because F
2＞F
1, α
1'＞α
1, α
2'＞α
2, thereby the normal component of force N that inwardly pushes
2Than the normal component of force N first time
1Bigger, make that to form the V-ring groove already darker (be h
2＞h
1), suitable for reading wideer, the hoop of groove inboard more closely wraps the protruding circle 4 of the root of upper valve body 1, more than shown in the II of Fig. 3.Three, the 4th step be use in regular turn again sharp tackle 2 ', blunt knife 2 ", and with bigger pressure F
3=58 tons and F
4=59 tons of (its F
4＞F
3＞F
2) carry out second take turns repeat the extruding, shown in III, the IV of Fig. 3.After carrying out many wheel extruding, reach the affixed intensity and the sealing of expection.
From the above, the present invention has overcome the welding distortion that high temperature, welding stress produced, and has improved precision, and it is simple to have reached technology, and the purpose that production cost is low is so have the usefulness of popularization.
Claims (9)
1. T type member extruding and connecting process, with upper member (1), lower member (3) is done metal cutting processing back respectively and is just dressed up T shape member, it is characterized in that: a protruding circle of ring-type (4) that outwards protrudes is arranged at the bottom of described upper member (1), the above-mentioned T of dress just shape member is placed on the forcing press, outside upper member, be nested with a pressing and forming cutter (2), forcing press is exerted pressure to pressing and forming cutter (2), the circumference blade of pressing and forming cutter pushes the last plane of lower member, extrude V-arrangement annulus indent one, the inboard material of indent is done entad distortion because of being squeezed, tightly wrap the protruding circle of ring-type (4) of upper member root, make " T " font of the affixed one-tenth of lower member integral body.
2. T type member extruding and connecting process according to claim 1 is characterized in that intensified pressure one by one, repeatedly pushes.
3. a kind of T type member extruding and connecting process according to claim 1, it is characterized in that described pressing and forming cutter according to sharp, the blunt degree of its blade be divided into two kinds or multiple more than, use earlier sharp tackle during extruding, the back blunt knife, take turns as one, carry out taking turns above repeatedly extruding, each applied pressure then strengthens one by one.
4. a kind of T type member extruding and connecting process according to claim 1 is characterized by: the first dress technology of the last lower member of described T font structure is the integral body that both tentatively is fixed as a T font with tight fit.
5. a kind of T type member extruding and connecting process according to claim 1, it is characterized by: described pressure limit is 50～60 tons.
6. a kind of T type member extruding and connecting process according to claim 1 is characterized in that the cutter hub internal diameter is suitable mutually with the upper member external diameter, and certain fit clearance (5) is arranged that this gap is good with 0.5mm.
7. a T type member extruding and connecting process special pressing and forming cutter is characterized in that cutter hub is a hollow cylinder, and the cylindrical shell lower end is smooth circumference cutting edge.
8. T type member extruding and connecting process special pressing and forming cutter according to claim 7 is characterized in that the tool point angle α of described sharp tackle
1Angle be 47 °～44 °, α
1Best angle be 47 °; The tool point angle α of described sharp tackle
2Angle be 25 °～40 °, α
2Best angle be 32 °, and α
1+ α
2＜85 °.
9. according to claim 7 or 8 described T type member extruding and connecting process special pressing and forming cutters, it is characterized in that the tool point angle α of described blunt knife
1' angle be 49 °～45 °, α
1' best angle be 49 °; The tool point angle α of described blunt knife
2' angle be 28 °～43 °, α
2Best angle be 34 °, and α
1'+α
2'＜90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011264977A CN1171691C (en) | 2001-08-16 | 2001-08-16 | T-shaped component extrusion and fixation process and special pressing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011264977A CN1171691C (en) | 2001-08-16 | 2001-08-16 | T-shaped component extrusion and fixation process and special pressing cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1332046A CN1332046A (en) | 2002-01-23 |
| CN1171691C true CN1171691C (en) | 2004-10-20 |
Family
ID=4666513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011264977A Expired - Fee Related CN1171691C (en) | 2001-08-16 | 2001-08-16 | T-shaped component extrusion and fixation process and special pressing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1171691C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898293B (en) * | 2010-06-25 | 2012-05-23 | 浙江新界泵业股份有限公司 | Method for surface treatment of encloser inner wall |
| CN102589979B (en) * | 2012-01-18 | 2013-08-07 | 清华大学 | Simulation experiment method for extrusion welding performance of aluminium alloy |
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2001
- 2001-08-16 CN CNB011264977A patent/CN1171691C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1332046A (en) | 2002-01-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20120816 |