CN104249129A - Apparatus and method for producing connecting portion with end face as part of tool - Google Patents
Apparatus and method for producing connecting portion with end face as part of tool Download PDFInfo
- Publication number
- CN104249129A CN104249129A CN201410291375.8A CN201410291375A CN104249129A CN 104249129 A CN104249129 A CN 104249129A CN 201410291375 A CN201410291375 A CN 201410291375A CN 104249129 A CN104249129 A CN 104249129A
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- China
- Prior art keywords
- connecting portion
- face
- portion section
- cannelure
- close die
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
- B21K5/10—Forming drill-bit shanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/12—Forming profiles on internal or external surfaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a method for producing a connecting portion with an end face as part of a tool, in particular a drill or chisel fixed on an electric hammer tool rack in a manner of being axially movably, or the tool part being a part of a connecting rod, wherein the connecting portion comprises at least a longitudinal groove, of which at least has an end face facing the connecting portion is at least partially closed. The invention further relates to a semi-finished tool, a drill, a chisel or a rod as well as an apparatus for manufacturing the connecting portion. In the method, the semi-finished drill product may have a rod with a substantially cylindrical or polygonal, in particular square peripheral surface. Furthermore, the connecting portion is introduced into an enclosed die. In addition, the at least one longitudinal groove is impressed by the radial feeding of one or more moveable forming bodies in the enclosed die, whereby an elongation of the connecting portion in the region of the longitudinal groove causes the reduction of a cross-sectional area.
Description
Technical field
The present invention relates to a kind of by stamped as tool component, the manufacture method of the connecting portion section that is provided with end face, the parts of described instrument are particularly fixed on the parts of drill bit in the tool rack of electric hammer or chisel in the mode that can move vertically, or the parts of described instrument also can be the parts of connecting rod, wherein said connecting portion section has at least one cannelure or longitudinal surface, and at least one end face towards connecting portion section in described cannelure or longitudinal surface closes at least in part.The present invention relates to a kind of semi-finished product instrument (Halbwerkzeug), drill bit, chisel or the bar with the operate portions section of connecting portion section and/or front portion in addition.The invention still further relates to a kind of for absorbing axial pulling force and pressure and absorbing the bar of moment of torsion.The invention still further relates to a kind of for by the device of stamped as the connecting portion section of tool component, described instrument is particularly fixed on drill bit in the tool rack of electric hammer or chisel in the mode that can move vertically.The present invention also relates to a kind of for the manufacture of the combination with the mould of the connecting portion section of at least two cannelures or longitudinal surface for semi-finished product instrument, drill bit, chisel and bar, at least one end face towards described connecting portion section in described cannelure or longitudinal surface closes at least in part.
Background technology
Starting these class methods, device, semi-finished product instrument, drill bit and the bar mentioned is known substantially.
Summary of the invention
Therefore the object of the invention is, a kind of method for the manufacture of the connecting portion section for bar, drill bit and chisel of improvement and a kind of device for the manufacture of the connecting portion section for bar, drill bit and chisel of improvement are provided.
According to this object of the present invention by a kind ofly manufacturing as tool component according to according to the present invention, the method being provided with the connecting portion section of end face realizes, parts that are that described tool component is particularly fixed on drill bit in the tool rack of electric hammer in the mode that can move vertically or chisel, or described tool component also can be the parts of connecting rod,-wherein said connecting portion section has at least one cannelure, at least one described end face towards described connecting portion section in described cannelure closes at least in part, a) drill blank is provided or has substantially columniform or polygonal, the bar of particularly square ring perimeter surface, b) described connecting portion section is incorporated in close die, c) by the radial feed punching press of one or more movable formed body in described close die cannelure described at least one, produce the elongation of described connecting portion section thus and produce reduced cross-sectional in the region of described cannelure.
The present invention includes following knowledge, namely drill bit and connecting rod manufacture usually on stock-removing machine, and due to produced chip, this causes the manufacturing time that the materials demand and needing in addition improved is grown relatively.Therefore one reintroducing following idea, namely manufacturing connecting portion section by means of being shaped.In EP2 181 783B1, describe a kind of method for the manufacture of bar and a kind of bar, described bar such as can be used as the gantry pillars for chassis in automobile making.But at this illustrate, the bar proposed in EP2 181 783B1 is not suitable for higher pulling force axially, because the undercutting realized carrys out the plastic components of counter pressure injection encapsulated deficiently in hotter temperature with resistance.Because cylindrical parts thinner is in addition transitioned into the transition of thicker portion's section of upsetting continuously, so this transition does not provide any obvious restrictive stays or stopper section.Technical scheme only shown in Fig. 8 of EP2 181 783B1 proves it is also for higher load in practice.Must produce by means of roll extrusion in independently operation in this undercutting, this causes the cost improved, connecting portion section (being mostly called handle (Einsteckende) at this place) in order to manufacture hammer drill in---particularly so-called safe fast-assembled drill bit (SDS-plus-Bohrern)---, the technical scheme manufactured by means of being shaped is known.Describe in this kind of DE84 of being manufactured on 33 275U1.Openly to be introduced into by the impact extrusion towards end face at this groove and to be closed by upsetting subsequently.This suggestion proves not attainable in practice, because when by upsetting closed slots, these grooves are equally also out of shape and then can not meet its function.Describe in DE199 15 303A1: manufacture the handle with the groove opening wide by impact extrusion or forging method and close.Any hint is there is not here to how solving the problem be shaped in the second forming process middle slot of corresponding necessity yet.According to EP2 361 702A1, in order to address this problem, obturator is imported in groove, so as in back to back upsetting the shape of retention groove.Problematic here, need significant axial force for for upsetting closed slots.If the safe fast-assembled handle of diameter 10mm (sees) drill bit being designed for the about 5mm of bore diameter in its active side along boring direction, so produce following problem, namely when upsetting end face, portion's section with the bore diameter of 5mm equally also can together by upsetting, and this usually causes material discharging machine drift to rupture (Auswerfernadelbr ü chen) when discharging drill bit blank.Therefore propose in EP11 190 059.3, the closed of groove is carried out as hot forming or half hot forming.Reduce required axial force significantly thus and avoid described problem.But, the job step that heating causes the cost that adds high.Cold upsetting also has another serious shortcoming: shaping in advance due to cannelure, and end face was extremely uneven before upsetting and part even has burr.In back to back upsetting, this face deformation is, makes to produce material fold in this section.Such as bear in the end regions of maximum load because of the axial impact of electric hammer at drill bit, this kind of fault in material can cause fracture, and wherein breaking portion usually causes the damage of electric hammer.In addition show, owing to treating the large shaping work performed with each job step, by means of the shaping cannelure of upsetting and closed end face limits possible production life cycle number (Produktionstaktzahl).---in order to avoid shortcoming mentioned before proposes especially in EP13158919, at least two steps, manufacture lock slots.Achieve by the manufacture of lock slots being divided into two steps, each step is carried out with obvious less power.The shortcoming of this method is proved, and namely the portion's section towards end face of lock slots can not be configured as or be difficult to be configured as in upsetting process, makes the replicable profile desired by producing.---be generally speaking also confirmedly, the multiple job step that the manufacture of lock slots is divided into proposed in different patent documents is difficult to realize technically, cause extra cost, and when manufacturing on multistage extruder, at least two levels are necessary for described groove.
In the method according to the invention, step a) in drill blank is provided or there is the bar of substantially columniform or polygonal, particularly square ring perimeter surface.In step b) in connecting portion section is incorporated in close die.In step c) in by least one cannelure of radial feed punching press of one or more movable formed body in close die, produce the elongation of connecting portion section and the reduced cross-sectional in the region of cannelure thus.
Term " elongation " preferably can be regarded as length variations within the scope of this invention, and particularly drill blank length in a longitudinal direction increases.Reduced cross-sectional can be interpreted as on the one hand the reduction transverse to the cross section of the longitudinal direction of drill blank in the region of cannelure within the scope of this invention, but also to can be understood as in the region of cannelure reducing of cross section in a longitudinal direction.---more simply too much than technical scheme proposed up to now and avoid its shortcoming according to method according to the present invention.
Preferably have at 800N/mm according to material used in the present invention
2to 1000N/mm
2, the intensity comprised in the scope of boundary value.The product with larger durability can be manufactured thus, because it is shocking, even if be also to carry out punching press under this intensity, its mode is that close die such as can stand constructively by the coating member of pretension or the higher power that caused by hard metal girth member.
According to one of method according to the present invention preferred embodiment, when not having prefabricated cannelure, particularly, in drill blank or bar, punching press is being carried out when prefabricated cannelure.Carry out in this shaping degree preferably in following scope, described shaping degree at 20% height to 45%, comprise in the scope of boundary value, further preferred at 24% height to 38%, comprise in the scope of boundary value.
According to method according to the present invention another preferred embodiment, in the recess of close die, guide the formed body that can radially move.
Method according to the present invention another preferred embodiment in, the uncrossed elongation of punch restriction connecting portion section, described punch has certain distance when punching course starts apart from the end face of connecting portion section, and described distance is less than the elongation of the connecting portion section produced by punching press.Therefore the region towards end face particularly achieving cannelure is accurately shaped according to formed body.The preferred distance of the end face of punch distance connecting portion section is before the punching between 0.2mm and 4.0mm.This result also can be realized by the punch that spring is housed, described in spring is housed punch be pressed onto on the end face of connecting portion section when punching press starts.
According to method according to the present invention another preferred embodiment, in step c) period, additionally produce the unlimited drive groove of at least one end face towards connecting portion section or drive face by means of punching press by the radial feed of movable formed body in close die.Punching press drives groove can preferably be interpreted as within the scope of this invention, the lock slots that simultaneously punching press closes towards end face and the drive groove opened wide towards end face.Especially all cannelures of connecting portion section economically and technically can be manufactured by this way simply in an only mould.This preferably carries out in following shaping degree, described shaping degree at 20% height to 45%, comprise in the scope of boundary value, further preferred 25% to 40%, comprise in the scope of boundary value, further preferred 30% to 37%, comprise in the scope of boundary value.
Method according to the present invention another preferred embodiment in, in step c) before, in forming step before, additionally produce the unlimited drive groove of at least one other end face towards connecting portion section or drive face by shrinking, impact extrusion or other manufacturing process.Here for step c) shaping preferably carry out in following shaping degree, described shaping degree at 20% height to 35%, comprise in the scope of boundary value, further preferred 23% to 32%, comprise in the scope of boundary value, further preferred 25% to 30%, comprise in the scope of boundary value.
Method according to the present invention another preferred embodiment in, close die have towards connecting portion section, particularly point to inner profile, described profile correspond to connecting portion section in step c) before the exterior contour ground that exists form, and the groove wherein opened wide towards the end face of connecting portion section or face are by the corresponding forming section of mould or filled by filler.
Method according to the present invention another preferred embodiment in, in step c) after, produce by shrinking, punching press or other manufacturing process the drive groove or drive face that at least one end face towards connecting portion section opens wide in follow-up forming step, and at this groove first produced by the corresponding forming section of mould or filled by filler.The generation of the drive groove opened wide towards the end face of connecting portion section is carried out in following shaping degree, described shaping degree is from 15% height to 40%, comprises boundary value, further preferred from 18% height to 37%, comprise boundary value, further preferred from 22% height to 32%, comprise boundary value.
Different shaping degree take into account lock slots and drives the different shape of cross section of groove, because the groove such as with rounded trough bottom resists formed body with obvious larger penetration resistance compared with having the groove of polygonal bottom land.
Method according to the present invention another preferred embodiment in, punching press is in step c) in carry out and/or being formed in two or more sub-forming step of other groove is carried out.
In a preferred improvement project of method according to the present invention, formed body is in step c) in there is forming section, preferably chamfered edge on the edge area, described forming section flows at punching press limit material.Fringe region can accurately be shaped thus.
According to method according to the present invention another preferred embodiment, the end face of connecting portion section is preferred infundibulate ground openly prefabricated (Nach einer weiteren bevorzugten Ausf ü hrungsform des in the region of the cannelure opened wide towards the end face of connecting portion section subsequently particularly
verfahrens wird die
des Verbindungsabschnitts, insbesondere im Bereich der
zur
des Verbindungsabschnitts offenen
sich, bevorzugt
zur
vorgeformt).
In another preferred improvement project of method according to the present invention, punching press connecting portion section on two ends of bar.
Another aspect of the present invention relates to a kind of according to semi-finished product instrument, drill bit, chisel or the bar with the operate portions section of connecting portion section and/or front portion of the present invention.
Semi-finished product instrument, drill bit, chisel or bar comprise cannelure in ring perimeter surface of substantially columniform or polygonal, particularly square ring perimeter surface, end face and at least two or longitudinal surface, at least one cannelure in described cannelure or longitudinal surface or longitudinal surface close at least in part towards the end face of connecting portion section, and wherein at least one cannelure or longitudinal surface are formed by punching press.
According to semi-finished product according to the present invention, drill bit, chisel or bar one preferred embodiment, at least one in cannelure or longitudinal surface is formed by impact extrusion or shrinking in a mold, and at least one cannelure or longitudinal surface carry out punching press by means of the formed body that can radially move.
According to semi-finished product according to the present invention, drill bit, chisel or bar one preferred embodiment, one at least in the end of bar is arranged the pressure injection-moulded encapsulating preferably formed by plastics.
Another aspect of the present invention relates to a kind of according to the device for the manufacture of the connecting portion section as tool component of the present invention, described tool component is particularly fixed on the parts of drill bit in the tool rack of electric hammer or chisel in the mode that can move vertically, or the parts of bar.
In this connecting portion section, there is end face and substantially cylindrical or polygonal, particularly square ring perimeter surface.Described device also comprises close die, described close die have at least can radially move and at least one formed body be arranged in the recess of close die, at least one lock slots can be formed by punching press by described formed body.
According to one preferred embodiment, according to the inventive system comprises close die, by means of described close die, lock slots and the cannelure opened wide towards end face or longitudinal surface can by least can radially move and the formed body be arranged in the recess of close die via stamping.
According to another preferred embodiment, method according to the present invention comprises mould and has the close die of the formed body that at least can radially move, by means of described mould, at least one cannelure or longitudinal surface can be configured as ring perimeter surface by impact extrusion or shrinking, by means of described close die, at least one lock slots can by stamping.
Device according to the present invention another preferred embodiment in, punch extend in close die along the longitudinal direction of drill blank or bar, the end face of wherein said punch adjustable ground distance connecting portion section when punching course starts has certain distance, described distance is less than the elongation of the connecting portion section caused because of punching press, or described punch is pressed onto on the end face of connecting portion section as the punch that spring is housed.
Another preferred embodiment in, the executing agency that the formed body of close die is consisted of conical ground, wedge shape ground or cam-shaped ground moves diametrically.
Accompanying drawing explanation
Exemplarily describe preferred embodiment of the present invention with reference to the accompanying drawings.Accompanying drawing illustrates:
Fig. 1 to 3 illustrates the intermediate products according to connecting portion section of the present invention according to making according to one embodiment of the method for the invention,
Fig. 4 illustrates the detailed view of connecting portion section shown in figure 2,
Fig. 5 illustrates the top view of the connecting portion section illustrated in figures 2 and 4,
Fig. 6 illustrates the profile along taken along line C-C shown in Figure 5,
Fig. 7 illustrates the profile along taken along line B-B shown in Figure 5,
Fig. 8 illustrates the detailed view of connecting portion section shown in Figure 3,
Fig. 9 illustrates the top view of the connecting portion section shown in Fig. 3 and 8,
Figure 10 illustrates the profile along taken along line B-B shown in Figure 9,
Figure 11 illustrates the profile along taken along line C-C shown in Figure 9,
Figure 12 shown in profile according to first of device of the present invention embodiment, and
Figure 13 shown in profile according to second of device of the present invention embodiment.
Detailed description of the invention
Fig. 1 illustrates the intermediate products of connecting portion section 100, and described connecting portion section is according to making according to one embodiment of the method for the invention.Connecting portion section 100 forms a part with the drill blank 102 of columniform ring perimeter surface 104.In addition connecting portion section 100 has end face 106.Fig. 1 illustrates the connecting portion section 100 manufactured according to the present invention in the rough 110 before punching press cannelure.According to embodiment shown in Figure 1, according to of the present invention for the manufacture of be provided with end face 106 connecting portion section 100 method method step a) in the rough 110 of 102 forms in drill blank is provided.
Fig. 2 and Fig. 4 to 7 illustrates the connecting portion section 100 as intermediate products 120 shown in Figure 1, subsequently at method step b) in connecting portion section 100 is introduced in close die 128, as shown in figs. 12 and 13, and afterwards at method step c) middle punching press cannelure 122.Carry out when this punching press is not prefabricated with cannelure 122 in drill blank 102.The cannelure 122 be stamped closes towards the end face 106 of connecting portion section 100 and forms lock slots 124.
Fig. 3 and Fig. 8 to 11 illustrate Fig. 1,2 and Fig. 4 to 7 shown in the connecting portion section 100 as intermediate products 160, in another method step, stamp out cannelure 162 afterwards.The cannelure 162 be stamped opens wide towards the end face 106 of connecting portion section 100 and is formed and rotarily drives groove 164.
According to method step c) punching press can realize by means of the device 126 such as in fig. 12 shown in first embodiment or by means of such as shown in the second embodiment in fig. 13 device 226.Figure 12 or 13 illustrates the device 126 or 226 in the second state C2 in the first state C1 before the punching and during punching press or after punching press.
Figure 12 at the device 126 shown in profile in two state C1 and C2, observes during punching press or after punching press from top view before the punching from below.Device 126 comprises close die 128, and described close die has recess 130.The movable formed body 134 in radially direction 132 is provided with in recess 130.If this formed body 134 is inwardly feeding diametrically, so lock slots 124 is shaped in connecting portion section 100.According to method step c) punching press in, go out as shown in Figure 12, cause connecting portion section 100 in a longitudinal direction 136 elongation.By described elongation, end face 106 collides punch 138, and described punch has certain distance according to the elongation of the connecting portion section 100 caused by punching press apart from end face 106 before the punching.
By means of having the executing agency 140 pointing to inner conical face 142, if executing agency 140 136 motions in a longitudinal direction, so formed body 134 radial feed.
Figure 13 illustrates the device 226 as second embodiment.Device 226 is similar to device 126 shown in Figure 12 and constructs.The element that identical or function is identical is provided with identical Reference numeral at this.With device shown in Figure 12 unlike, device 226 has following punch 238, and described punch 136 is flexibly installed in a longitudinal direction by means of spring 250.
Reference numerals list
100 connecting portion sections
102 drill blanks
104 ring perimeter surface
106 end faces
110 roughs
120 intermediate products
122 cannelures
124 lock slots
126 devices
128 close die
130 recesses
132 radial direction
134 formed bodies
136 longitudinal directions
138 punch
140 executing agencies
160 intermediate products
162 cannelures
164 rotarily drive groove
226 devices
238 punch
250 springs.
Claims (15)
1. one kind manufacture as tool component, the method for the connecting portion section (100) that is provided with end face, parts that are that described tool component is particularly fixed on drill bit in the tool rack of electric hammer in the mode that can move vertically or chisel, or described tool component also can be the parts of connecting rod
-wherein said connecting portion section (100) has at least one cannelure (122), and at least one the described end face (106) towards described connecting portion section in described cannelure closes at least in part,
-it is characterized in that, described method has following method step:
Drill blank (102) a) is provided or there is the bar of substantially columniform or polygonal, particularly square ring perimeter surface (104),
B) described connecting portion section (100) is incorporated in close die (128),
C) by the radial feed punching press of one or more movable formed body (134) in described close die (128) cannelure (122) described at least one, produce the elongation of described connecting portion section (100) thus and produce reduced cross-sectional in the region of described cannelure (122).
2. method according to claim 1, is not wherein carrying out punching press prefabricated described cannelure (122) when not having prefabricated described cannelure (122), particularly in described drill blank (102) or described bar.
3. the method according to any one of the claims, wherein punch (138) or punch (238) that spring is housed are pressed onto on described end face (106), limit the elongation of described connecting portion section (100) thus, wherein said punch has certain distance when punching course starts apart from the described end face (106) of described connecting portion section (100), and described distance is less than the elongation produced by punching press of described connecting portion section (100).
4. the method according to any one of the claims, wherein in step c) period, by means of punching press, by the radial feed of described formed body movable in described close die (128), additionally produce the unlimited drive groove (164) of at least one described end face (106) towards described connecting portion section (100) or the face of drive.
5. according to the method in any one of claims 1 to 3, wherein at described step c) before, shrinking is passed through in forming step before, extruding or other manufacturing process additionally produce other unlimited drive groove (164) of at least one other described end face (106) towards described connecting portion section (100) or the face of drive, or wherein at described step c) after, shrinking is passed through in follow-up forming step, impact extrusion or other manufacturing process produce the unlimited drive groove (164) of at least one described end face (106) towards described connecting portion section (100) or the face of drive, and at this groove first produced by the corresponding forming section of mould or filled by filler.
6. the method according to claims 1 to 3 and 5, wherein said close die (128) have towards described connecting portion section (100), particularly point to inner profile, described profile correspond to described connecting portion section (100) at described step c) before the exterior contour ground that exists form, and the groove wherein opened wide towards the described end face (106) of described connecting portion section (100) or face are by the corresponding forming section of mould or filled by filler.
7. the method according to any one of the claims, wherein said punching press is at described step c) in carry out, and/or being formed in two or more sub-forming step of other groove (162) is carried out.
8. the method according to any one of the claims, wherein said formed body (134) is at described step c) in there is forming section, preferably chamfered edge on the edge area, described forming section flows at impact extrusion limit material.
9. the method according to any one of the claims, particularly in the region of the cannelure (162) opened wide towards the described end face (106) of described connecting portion section (100) subsequently, preferably infundibulate ground is openly prefabricated for the described end face (106) of wherein said connecting portion section (100).
10. there is the semi-finished product instrument of the operate portions section of connecting portion section (100) and/or front portion, drill bit, chisel or a bar, comprising:
Substantially columniform or polygonal, particularly square ring perimeter surface (104),
End face (106), and
At least two cannelures (122) in ring perimeter surface (104) or longitudinal surface, at least one cannelure in described cannelure or longitudinal surface or longitudinal surface close at least in part towards the described end face (106) of described connecting portion section (100), and wherein at least one cannelure (122) or longitudinal surface are formed by punching press.
11. 1 kinds of devices for the manufacture of the connecting portion section (100) as tool component, described tool component is particularly fixed on the parts of drill bit in the tool rack of electric hammer or chisel in the mode that can move vertically, wherein said connecting portion section (100) has end face (106) and substantially columniform or polygonal, particularly square ring perimeter surface (104), or described tool component is the parts of bar, and described device comprises:
Close die (128), described close die has formed body (134) that is that at least one at least can radially move and that be arranged in the recess of described close die (128), and at least one lock slots (124) can be formed by punching press by means of described formed body.
12. devices according to claim 11, comprising:
Close die (128), by means of described close die, lock slots (124) and towards described end face (106) open wide cannelure (162) or longitudinal surface can via at least can radially move and the formed body (134) be arranged in the recess of described close die (128) by stamping.
13. devices according to claim 11, comprising:
-mould, can be formed at least one cannelure or longitudinal surface in described ring perimeter surface (104) by impact extrusion or shrinking by means of described mould, and
-close die (128), described close die has the formed body (134) that at least can radially move, and by means of described close die, at least one lock slots (124) can by stamping.
14. devices according to claim 11,12 or 13,
Its convex mould (138; 238) longitudinal direction (136) along drill blank (102) or bar extend in described close die (128), wherein said punch (138) adjustable ground when punching course starts has certain distance apart from the described end face (106) of described connecting portion section (100), described distance is less than the elongation of the described connecting portion section (100) caused by punching press, or described punch is pressed onto on the described end face (106) of described connecting portion section (100) as the punch (238) that spring is housed.
15. according to claim 11 to the device according to any one of 14,
The executing agency (140) that the described formed body (134) of wherein said close die (128) is consisted of conical ground or wedge shape ground moves diametrically.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013010495.5A DE102013010495A1 (en) | 2013-06-25 | 2013-06-25 | Method and device for producing an end face provided with a connecting portion as part of a tool |
| DE102013010495.5 | 2013-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104249129A true CN104249129A (en) | 2014-12-31 |
| CN104249129B CN104249129B (en) | 2018-07-20 |
Family
ID=50349531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410291375.8A Expired - Fee Related CN104249129B (en) | 2013-06-25 | 2014-06-25 | The device and method for manufacturing connect segment as tool component, equipped with end face |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2839900B1 (en) |
| CN (1) | CN104249129B (en) |
| DE (1) | DE102013010495A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069520A (en) * | 2018-10-19 | 2020-04-28 | 神力公司 | Method and device for producing a connecting element |
| CN111069521A (en) * | 2018-10-19 | 2020-04-28 | 神力公司 | Connecting element, method and device for producing a connecting element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020007945A1 (en) | 2020-12-24 | 2022-06-30 | Mac Panther Gmbh | Connection section with locking groove open on one side |
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| DE8433275U1 (en) | 1984-11-14 | 1986-03-27 | Hawera Probst Gmbh + Co, 7980 Ravensburg | Drilling tool |
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| DE102012204609A1 (en) | 2012-03-22 | 2013-09-26 | Mac Panther Gmbh | Method and device for producing a connection section as part of a tool |
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2013
- 2013-06-25 DE DE102013010495.5A patent/DE102013010495A1/en not_active Withdrawn
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- 2014-06-25 CN CN201410291375.8A patent/CN104249129B/en not_active Expired - Fee Related
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| CN101111329A (en) * | 2005-01-31 | 2008-01-23 | 昭和电工株式会社 | Upsetting method and upsetting apparatus |
| CN101966603A (en) * | 2009-07-27 | 2011-02-09 | 喜利得股份公司 | Driller and method for its manufacture |
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| CN102233511A (en) * | 2010-05-03 | 2011-11-09 | 喜利得股份公司 | Hollow drill and method for its manufacture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069520A (en) * | 2018-10-19 | 2020-04-28 | 神力公司 | Method and device for producing a connecting element |
| CN111069521A (en) * | 2018-10-19 | 2020-04-28 | 神力公司 | Connecting element, method and device for producing a connecting element |
| US11565306B2 (en) | 2018-10-19 | 2023-01-31 | Mac Panther Gmbh | Connecting element, method and apparatus for its production |
| CN111069520B (en) * | 2018-10-19 | 2024-01-12 | 神力公司 | Method and device for producing a connecting element |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2839900A1 (en) | 2015-02-25 |
| CN104249129B (en) | 2018-07-20 |
| EP2839900B1 (en) | 2017-07-12 |
| DE102013010495A1 (en) | 2015-01-08 |
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