CN104249129B - The device and method for manufacturing connect segment as tool component, equipped with end face - Google Patents
The device and method for manufacturing connect segment as tool component, equipped with end face Download PDFInfo
- Publication number
- CN104249129B CN104249129B CN201410291375.8A CN201410291375A CN104249129B CN 104249129 B CN104249129 B CN 104249129B CN 201410291375 A CN201410291375 A CN 201410291375A CN 104249129 B CN104249129 B CN 104249129B
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- Prior art keywords
- face
- connect segment
- cannelure
- mould
- guan
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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 present invention relates to a kind of methods manufacturing connect segment as tool component, equipped with end face, the tool be especially by can axially movable in a manner of be fixed on drill bit or chisel in the tool rack of electric hammer, or the tool component can also be the component of connecting rod, wherein there is connect segment at least one cannelure, wherein at least one to be closed at least partly towards the end face of connect segment.The invention further relates to a kind of semi-finished product tool, drill bit, chisel or bar and a kind of devices for manufacturing connect segment.In the method, bar of the drill blank either with substantially cylindrical or polygon, particularly rectangular ring perimeter surface is provided.In addition the connect segment is introduced into Guan Bi mould.In addition at least one cannelure of radial feed punching press of the formed body movable in Guan Bi mould by one or more, the elongation being thus connected in section and in cannelure region generate reduced cross-sectional.
Description
Technical field
Tool component, connect segment equipped with end face manufacturer is used as by stamped the present invention relates to a kind of
Method, the component of the tool be especially by can axially movable in a manner of be fixed on drill bit or chisel in the tool rack of electric hammer
Component or the tool component can also be connecting rod component, wherein the connect segment have it is at least one vertical
To slot, either at least one of the longitudinal surface cannelure or longitudinal surface close at least partly towards the end face of connect segment
It closes.The present invention additionally relates to a kind of semi-finished product tool of the work section with connect segment and/or front
(Halbwerkzeug), drill bit, chisel or bar.The invention further relates to a kind of for absorbing axial pulling force and pressure and inhaling
Receive the bar of torque.It is described the invention further relates to a kind of device for being used as the connect segment of tool component by stamped
Tool be especially by can axially movable in a manner of be fixed on drill bit or chisel in the tool rack of electric hammer.The present invention also relates to
A kind of connection at least two cannelures or longitudinal surface for manufacturing for semi-finished product tool, drill bit, chisel and bar
The combination of the mold of section, at least one of the cannelure or longitudinal surface are towards the end face of the connect segment at least portion
Ground is divided to be closed.
Background technology
Such methods, device, semi-finished product tool, drill bit and the bar being initially mentioned are substantially known.
Invention content
Therefore it is an object of the present invention to provide a kind of improved connect segments for manufacturing for bar, drill bit and chisel
Method and it is a kind of it is improved for manufacture be used for bar, drill bit and chisel connect segment device.
Tool component, company equipped with end face are used as by a kind of manufacture according to the present invention according to this of the invention purpose
The method of socket part section realizes, the tool component especially by can axially movable in a manner of be fixed in the tool rack of electric hammer
Drill bit either chisel component or the tool component can also be connecting rod component ,-wherein described connect segment
With at least one cannelure, at least one of described cannelure towards the end face of the connect segment at least partly
It is closed, a) provides drill blank either with substantially cylindrical or polygon, particularly rectangular ring perimeter surface
Bar, b) connect segment is introduced into Guan Bi mould, c) it is movable in the Guan Bi mould by one or more
Formed body at least one cannelure of radial feed punching press, thus generate the elongation of the connect segment and described
Reduced cross-sectional is generated in the region of cannelure.
The present invention includes following knowledge, i.e. drill bit and connecting rod usually manufactures on stock-removing machine, is cut due to generated
Considering this to be worth doing leads to the materials demand improved and needs relatively long manufacturing time in addition.Therefore one following idea is reintroduced, that is, borrowed
Help forming to manufacture connect segment.A kind of method and one kind for manufacturing bar is described in 2 181 783 B1 of EP
Bar, the bar are for example can be used as in automobile making as the gantry pillars for chassis.However be shown here, in EP 2 181
Bar proposed in 783 B1 is not suitable for the pulling force in higher axial direction because the undercutting realized in hotter temperature not
Fully carry out the plastic components of counter pressure injection encapsulated with resistance.Because relatively thin cylindrical parts are continuously transitioned into addition
The transition of the thicker section of upsetting, so this transition does not provide any apparent restrictive stays or stopper section.Only
The technical solution shown in Fig. 8 of 2 181 783 B1 of EP proves to be also for higher load in practice.Herein
Undercutting must generate in independent process by means of rolling, this leads to the cost improved, in order to manufacture hammer drill --- especially
So-called safe fast-assembled drill bit (SDS-plus-Bohrern) --- in connect segment (at this mostly be known as handle
(Einsteckende)) technical solution, manufactured by means of shaping is known.This kind of manufacture is in 84 33 275 U1 of DE
Described in.It is openly introduced by the impact extrusion towards end face in this slot and is then closed by upsetting.In practice this
A suggestion is proved to be not achievable, because when by upsetting closed slots, these slots equally also deform and then cannot meet it
Function.It is described in 199 15 303 A1 of DE：Manufacture has through impact extrusion or forging method come open and close slot
Handle.Herein to how to solve the problems, such as that any hint is also not present in corresponding necessary second forming process bracket groove forming.
In order to solve this problem obturator is imported into slot according to 2 361 702 A1 of EP, so as in back to back upsetting
The shape of retention groove.It is problematic herein to be, predominantly axial power is needed for by means of upsetting closed slots.If straight
The safe fast-assembled handle of diameter 10mm (being seen along boring direction) in its active side is designed for the drill bit of bore diameter about 5mm,
So lead to the problem of as follows, i.e., at upsetting end face, the section of the bore diameter with 5mm equally also can be together by upsetting, this
Material discharging machine punch fracture (Auswerfernadelbr ü chen) is frequently resulted in when drill bit blank is discharged.Therefore in EP 11 190
It is proposed in 059.3, the closure of slot is carried out as hot forming or half hot forming.Thus required axis has been greatly reduced
To power and avoid described problem.However, heating leads to additional work step of high cost.Cold upsetting also has another
One serious disadvantage：Due to the prior molding of cannelure, end face is that extremely uneven and part even has before upsetting
It is jagged.In back to back upsetting, this face deformation is so that material fold is generated in this section.In drill bit
Such as born because of the axial impact of electric hammer in the end regions of maximum load, this kind of fault in material can cause to be broken, and interrupt
Split the damage that part frequently results in electric hammer.In addition it has been shown that big forming work due to waiting for executing with each work step, is borrowed
Help upsetting molding cannelure and is closed end face and limits possible production life cycle number
(Produktionstaktzahl).--- in EP 13158919 in order to avoid being previously mentioned before the shortcomings that, is especially set out,
Lock slots are manufactured at least two steps.It is realized by the way that the manufacture of lock slots is divided into two steps, each step is with bright
Smaller power is shown to carry out.The shortcomings that this method, has been found, i.e., the section towards end face of lock slots is during upsetting
It can not be configured to or be difficult to be configured to so that generate desired replicable profile.--- generally speaking also have been found
, proposed in different patent documents the manufacture of lock slots is divided into multiple work steps technically is to be difficult to reality
Existing, lead to extra cost, and when being manufactured on multistage extruder, at least two grades are necessary the slot.
In the method according to the invention, drill blank is provided in the step a) or with substantially cylindrical or
The bar of person's polygon, particularly rectangular ring perimeter surface.Connect segment is introduced into Guan Bi mould in step b).
At least one cannelure of radial feed punching press of the formed body movable in Guan Bi mould by one or more in step c),
Thus the elongation for generating connect segment and the reduced cross-sectional in the region of cannelure.
Term " elongation " preferably can be regarded as length variation within the scope of this invention, and especially drill blank is along vertical
To the length increase in direction.Reduced cross-sectional is within the scope of this invention on the one hand it will be appreciated that be horizontal in the region of cannelure
Reduction to the cross section of the longitudinal direction in drill blank, but it can be appreciated that along vertical in the region of cannelure
Diminution to the cross section in direction.--- the technical solution according to the method for the present invention than being proposed so far is much simpler simultaneously
And avoid its disadvantage.
Preferably had in 800N/mm according to material used in the present invention2To 1000N/mm2Including in the range of boundary value
Intensity.Thus, it is possible to manufacture the product of the durability with bigger, because it is especially surprising that even if under this intensity
It is that can carry out punching press, mode is Guan Bi mould for example and can be subjected to constructively by the coating member that pre-tightens or by hard gold
Belong to higher power caused by reinforcing member.
According to a preferred embodiment according to the method for the present invention, in the case of no prefabricated cannelure, spy
It is not to carry out punching press in the case of the not prefabricated cannelure in drill blank or bar.This is preferably in the following range
Carried out in forming degree, the forming degree 20% up to 45% including boundary value range in, further preferably 24%
Up to 38% including boundary value range in.
According to another preferred embodiment according to the method for the present invention, guiding can edge in the recess portion of Guan Bi mould
The formed body of radial motion.
In another preferred embodiment according to the method for the present invention, punch-pin limits the unobstructed of connect segment
Elongation, there is a certain distance in punch-pin end face away from connect segment when punching course starts, and the distance, which is less than, passes through punching
Press the elongation of the connect segment generated.Therefore the region towards end face of cannelure is especially realized accurately according to formed body
Forming.The preferred distance of end face of the punch-pin away from connect segment is before the punching between 0.2mm and 4.0mm.This result
Also it can be realized by the punch-pin equipped with spring, the punch-pin equipped with spring has been pressed onto connect segment when punching press starts
End face on.
It is logical by means of punching press during step c) according to another preferred embodiment according to the method for the present invention
Crossing the radial feed of movable formed body in Guan Bi mould, additionally to generate at least one end face towards connect segment spacious
The drive slot opened or drive face.Punching press drives slot to be preferably interpreted as within the scope of this invention, while punching press is towards end face
Lock slots of closure and towards the open drive slot in end face.It in this way can be especially economically and technically simply only one
All cannelures of connect segment are manufactured in a mold.This is preferably carried out in following forming degree, and the forming degree exists
20% up to 45% including boundary value range in, further preferably 25% to 40% including boundary value range in, more
Further preferably 30% to 37% including boundary value range in.
In another preferred embodiment according to the method for the present invention, before step c), in forming before
At least one other end towards connect segment is additionally generated by shrinking, impact extrusion or other manufacturing process in step
The open drive slot in face drives face.The forming for being here used for step c) preferably carries out in following forming degree, described
Forming degree 20% up to 35% including boundary value range in, further preferably 23% to 32% including boundary value
In range, still more preferably 25% to 30% including boundary value range in.
In another preferred embodiment according to the method for the present invention, Guan Bi mould has towards connect segment
, particularly inwardly directed profile, the profile is with corresponding to the existing exterior contour before step c) of connect segment
Constitute, and wherein towards the open slot in the end face of connect segment either face by the corresponding forming section of mold or by filling out
Expect to fill.
In another preferred embodiment according to the method for the present invention, after step c), in subsequent forming
At least one open drive in the end face towards connect segment is generated by shrinking, punching press or other manufacturing process in step
Slot either drives face and the slot generated first herein is filled by the corresponding forming section of mold or by filler.Direction
The open generation for driving slot in the end face of connect segment carries out in following forming degree, the forming degree be from 15% up to
40%, including boundary value, further preferably from 18% up to 37% including boundary value, still more preferably up to from 22%
32%, including boundary value.
Different forming degree considers lock slots and drives the different cross-sectional shapes of slot, because for example with circle
The slot of shape slot bottom resists formed body compared with the slot with polygonal slot bottom with significantly larger penetration resistance.
In another preferred embodiment according to the method for the present invention, punching press is carried out in step c) and/or it
Being formed in two or more sub- forming steps for its slot carries out.
In a preferred improvement project according to the method for the present invention, formed body is in step c) in its marginal zone
There is forming section, preferably chamfered edge, the forming section to be flowed in punching press time limit prepared material on domain.Thus fringe region can be accurately
Forming.
According to another preferred embodiment according to the method for the present invention, the end face of connect segment is especially subsequent
Openly prefabricated (the Nach einer towards preferred infundibulate in the region of the open cannelure in end face of connect segment
weiteren bevorzugten Ausführungsform des Verfahrens
wird diedes Verbindungsabschnitts,insbesondere im Bereich derzurdes Verbindungsabschnitts offenen
sich, bevorzugtzurvorgeformt)。
In another preferred improvement project according to the method for the present invention, the stamping connection portion on two ends of bar
Section.
Another aspect of the present invention is related to a kind of work section according to the present invention with connect segment and/or front
Semi-finished product tool, drill bit, chisel or bar.
Either bar includes substantially cylindrical or polygon, particularly rectangular for semi-finished product tool, drill bit, chisel
The cannelure of ring perimeter surface, end face and at least two in ring perimeter surface is either in the longitudinal surface cannelure or longitudinal surface
At least one cannelure or longitudinal surface be closed at least partly towards the end face of connect segment, wherein at least one cannelure
Or longitudinal surface is by being stamped and formed out.
According to semi-finished product according to the present invention, drill bit, chisel either a preferred embodiment cannelure of bar or
By impact extrusion, either shrinking is formed at least one of longitudinal surface and at least one cannelure or longitudinal surface are borrowed in a mold
Help can radially movable formed body carry out punching press.
According to a preferred embodiment of semi-finished product according to the present invention, drill bit, chisel or bar, at least in bar
One in end is above arranged the pressure injection-moulded encapsulating preferably formed by plastics.
Another aspect of the present invention is related to a kind of connect segment according to the present invention for manufacturing as tool component
Device, the tool component be especially by can axially movable in a manner of be fixed on drill bit or chisel in the tool rack of electric hammer
The component of son or the component of bar.
There is end face and substantially cylindrical or polygon, particularly rectangular ring perimeter surface in this connect segment.Institute
Stating device, to further include Guan Bi mould, the Guan Bi mould have and at least can be radially movable and be arranged in the recessed of Guan Bi mould
At least one of portion formed body, at least one lock slots can be by the formed bodies by being stamped and formed out.
According to a preferred embodiment, the apparatus according to the invention includes Guan Bi mould, by means of the closure mould
Tool, lock slots and can be by least can be radially movable and being arranged and existing towards the open cannelure in end face or longitudinal surface
Formed body in the recess portion of Guan Bi mould is via stamping.
Include mold and at least can radially transporting according to the method for the present invention according to another preferred embodiment
The Guan Bi mould of dynamic formed body, by means of the mold, at least one cannelure either longitudinal surface can by impact extrusion or
Shrinking is configured to ring perimeter surface, and by means of the Guan Bi mould, at least one lock slots can be by stamping.
In another preferred embodiment of the apparatus according to the invention, punch-pin is along drill blank or bar
Longitudinal direction is extend into Guan Bi mould, wherein the punch-pin adjustably end face away from connect segment when punching course starts
Have a certain distance, the distance be less than the connect segment caused by punching press elongation or the punch-pin as being equipped with spring
Punch-pin is pressed onto on the end face of connect segment.
In another preferred embodiment, the formed body of Guan Bi mould passes through conical ground, wedge shape ground or cam
The executing agency constituted to shape moves radially.
Description of the drawings
It is illustratively described the preferred embodiments of the present invention with reference to the accompanying drawings.Attached drawing is shown：
Fig. 1 to 3 is shown according to connect segment according to the present invention manufactured according to one embodiment of the method for the invention
Intermediate products,
Fig. 4 shows the detailed view of connect segment shown in figure 2,
Fig. 5 shows the vertical view of the connect segment shown in figures 2 and 4,
Fig. 6 shows the sectional view along the taken along line C-C being shown in FIG. 5,
Fig. 7 shows the sectional view along the taken along line B-B being shown in FIG. 5,
Fig. 8 shows the detailed view for the connect segment being shown in FIG. 3,
Fig. 9 shows the vertical view of the connect segment shown in Fig. 3 and 8,
Figure 10 shows the sectional view along the taken along line B-B being shown in FIG. 9,
Figure 11 shows the sectional view along the taken along line C-C being shown in FIG. 9,
Figure 12 shows one embodiment of the apparatus according to the invention in sectional view, and
Figure 13 shows second embodiment of the apparatus according to the invention in sectional view.
Specific implementation mode
Fig. 1 shows the intermediate products of connect segment 100, and the connect segment is according to a reality according to the method for the present invention
Example is applied to be made.Connect segment 100 forms a part for the drill blank 102 with cylindrical ring perimeter surface 104.In addition connect
Socket part section 100 has end face 106.Fig. 1 shows being made according to the present invention in the rough 110 before punching press cannelure
At connect segment 100.According to embodiment shown in FIG. 1, end face 106 is provided with for manufacturing according to the present invention
Rough 110 in 102 form of drill blank is provided in the method and step a) of the method for connect segment 100.
Fig. 2 and Fig. 4 to 7 shows the connect segment 100 shown in FIG. 1 as intermediate products 120, then in method
Connect segment 100 is introduced into Guan Bi mould 128 in step b), as shown by figs. 12 and 13, and later in method
Punching press cannelure 122 in step c).It is carried out in the case where this punching press is not prefabricated with cannelure 122 in drill blank 102.
The cannelure 122 being stamped is closed towards the end face 106 of connect segment 100 and forms lock slots 124.
Fig. 3 and Fig. 8 to 11 shows the connect segment 100 as intermediate products 160 shown in Fig. 1,2 and Fig. 4 to 7,
Cannelure 162 is stamped out in another method and step later.The cannelure 162 being stamped is towards the end face of connect segment 100
106 open wide and form rotation drive slot 164.
It can be by means of such as the device in fig. 12 shown in one embodiment according to the punching press of method and step c)
126 or by means of such as shown device 226 is realized in the second embodiment in fig. 13.Figure 12 or 13 shows rushing
First state C1 before pressure neutralizes the device 126 or 226 in the second state C2 during punching or after punching press.
Figure 12 shows the device 126 in two states C1 and C2 in sectional view, before the punching it is viewed from above simultaneously
And it observes from below during punching or after punching press.Device 126 includes Guan Bi mould 128, and the Guan Bi mould has recessed
Portion 130.It is provided in recess portion 130 along the movable formed body 134 of radial direction 132.If this formed body 134 is in diameter
Inwardly feeding upwards, then lock slots 124 shape in connect segment 100.In the punching press according to method and step c), such as exist
Shown in Figure 12, cause connect segment 100 in a longitudinal direction 136 elongation.By the elongation, end face 106 is touched
Punch-pin 138 is hit, the punch-pin has one according to the elongation of connect segment 100 caused by punching press away from end face 106 before the punching
Set a distance.
By means of the executing agency 140 in the face with inwardly directed cone, if executing agency 140 is along longitudinal direction
Direction 136 moves, then 134 radial feed of formed body.
Figure 13 is shown as the device 226 of second embodiment.Device 226 is similar to device 126 shown in Figure 12
Construction.The identical element of identical or function is provided with identical reference numeral herein.Not with the device that is shown in FIG. 12
There are following punch-pin 238 with, device 226, the punch-pin 136 is flexibly pacified in a longitudinal direction by means of spring 250
Dress.
Reference numerals list
100 connect segments
102 drill blanks
104 ring perimeter surfaces
106 end faces
110 roughs
120 intermediate products
122 cannelures
124 lock slots
126 devices
128 Guan Bi moulds
130 recess portions
132 radial directions
134 formed bodies
136 longitudinal directions
138 punch-pin
140 executing agencies
160 intermediate products
162 cannelures
164 rotations drive slot
226 devices
238 punch-pin
250 springs.
Claims (25)
1. a kind of component of the manufacture as tool is the component as connecting rod, connect segment (100) equipped with end face
Method,
The wherein described connect segment (100) has at least one cannelure (122), at least one of described cannelure direction
The end face (106) of the connect segment is closed at least partly,
It is characterized in that, the method has following methods step：
Bar of the drill blank (102) either with cylindrical or polygon ring perimeter surface (104) a) is provided,
B) connect segment (100) is introduced into Guan Bi mould (128),
C) the radial feed punching press of the formed body (134) movable in the Guan Bi mould (128) by one or more is extremely
A few cannelure (122), thus generates the elongation of the connect segment (100) and in the cannelure (122)
Reduced cross-sectional is generated in region,
Wherein punch-pin (138) or punch-pin (238) equipped with spring are pressed onto on the end face (106), thus limit the company
The elongation of socket part section (100), wherein the end face of the punch-pin when punching course starts away from the connect segment (100)
(106) certain distance, the distance are less than the elongation of the connect segment (100) generated by punching press.
2. according to the method described in claim 1, the wherein described tool be by can axially movable in a manner of be fixed on electric hammer
Drill bit in tool rack or chisel.
3. according to the method described in claim 1, the wherein described ring perimeter surface is rectangular.
4. according to the method in any one of claims 1 to 3, wherein no prefabricated cannelure (122) the case where
Lower carry out punching press.
5. according to the method described in claim 4, wherein prefabricated not in the drill blank (102) or the bar
Punching press is carried out in the case of the cannelure (122).
6. according to the method in any one of claims 1 to 3, wherein during step c), by means of punching press, by institute
The radial feed for stating the formed body movable in Guan Bi mould (128) additionally generates at least one towards the connection
The open drive slot (164) in the end face (106) of section (100) drives face.
7. according to the method in any one of claims 1 to 3, wherein before the step c), in forming step before
At least one other direction connect segment is additionally generated by shrinking, extruding or other manufacturing process in rapid
(100) the end face (106) it is open it is other drive slots (164) either drive face or wherein the step c) it
Afterwards, it is generated by shrinking, impact extrusion or other manufacturing process in subsequent forming step at least one towards the connection
The open drive slot (164) in the end face (106) of section (100) drives face, and the slot generated first herein passes through
The corresponding forming section of mold is filled, or is filled by filler.
8. according to the method in any one of claims 1 to 3, wherein the Guan Bi mould (128) has towards the company
The profile of socket part section (100), the profile correspond to the existing external before the step c) of the connect segment (100)
It constitutes to profile, and wherein passes through mold towards the open slot in the end face (106) of the connect segment (100) or face
The filling of corresponding forming section, or filled by filler.
9. according to the method described in claim 8, the wherein described Guan Bi mould (128) has inwardly directed profile.
10. according to the method in any one of claims 1 to 3, wherein the punching press carries out in the step c).
11. according to the method described in claim 10, wherein after step c), in two or more subsequent forming steps
The middle forming for carrying out the other end face (106) open cannelures (162) towards the connect segment (100).
12. according to the method in any one of claims 1 to 3, wherein the formed body (134) in the step c)
There is forming section, the forming section to be flowed in impact extrusion time limit prepared material on its fringe region.
13. according to the method for claim 12, wherein the forming section is chamfered edge.
14. according to the method in any one of claims 1 to 3, wherein the end face of the connect segment (100)
(106) then towards unlimited in the region of the end face (106) the open cannelure (162) of the connect segment (100)
Ground is prefabricated.
15. according to the method for claim 14, wherein the end face (106) of the connect segment (100) is in subsequent court
Into the region of the end face (106) the open cannelure (162) of the connect segment (100) infundibulate it is openly pre-
System.
16. one kind having the semi-finished product tool or connecting rod of connect segment (100), including：
Cylindrical or polygon ring perimeter surface (104),
End face (106), and
At least two cannelures (122) in ring perimeter surface (104) is either in the longitudinal surface cannelure or longitudinal surface
The end face (106) of at least one cannelure or longitudinal surface towards the connect segment (100) is closed at least partly,
In at least one cannelure (122) or longitudinal surface by being stamped and formed out,
It is characterized in that, either at least one of longitudinal surface is formed by impact extrusion or shrinking cannelure in a mold, and
At least one cannelure either longitudinal surface by means of can radially movable formed body come its convex mould (138) of punching press or dress
There is the punch-pin (238) of spring to be forced on the end face (106), thus limit the connect segment (100) by radial punch
Caused elongation.
17. either connecting rod wherein semi-finished product tool or connecting rod also has semi-finished product tool according to claim 16
There is the work section of front.
18. semi-finished product tool according to claim 16 or 17 or connecting rod, wherein the semi-finished product tool is drill bit
Or chisel.
19. semi-finished product tool according to claim 16 or 17 or connecting rod, wherein the ring perimeter surface (104) side of being
Shape.
20. a kind of device for manufacturing the connect segment (100) of the component as tool component or as connecting rod, wherein
The connect segment (100) has end face (106) and cylindrical or polygon ring perimeter surface (104), described device packet
It includes：
Guan Bi mould (128), the Guan Bi mould have it is at least one at least can it is radially movable and be arranged closed described
Formed body (134) in the recess portion of molding tool (128), at least one lock slots (124) can be passed through by means of the formed body
It is stamped and formed out,
It is characterized in that, punch-pin (138；238) it extend into institute along the longitudinal direction (136) of drill blank (102) or bar
State in Guan Bi mould (128), wherein the punch-pin (138) when punching course starts adjustably away from the connect segment
(100) the end face (106) has certain distance, the distance to be less than stretching for caused by punching press connect segment (100)
The long or described punch-pin is pressed onto as the punch-pin (238) equipped with spring on the end face (106) of the connect segment (100).
21. device according to claim 20, wherein the tool be by can axially movable in a manner of be fixed on electric hammer
Tool rack in drill bit or chisel.
22. device according to claim 20, wherein the ring perimeter surface is rectangular.
23. the device according to any one of claim 20 to 22, including：
Guan Bi mould (128), by means of the Guan Bi mould, lock slots (124) and towards the end face (106) open longitudinal direction
Slot (162) or longitudinal surface can be via at least can be radially movable and being arranged recess portion in the Guan Bi mould (128)
In formed body (134) by stamping.
24. the device according to any one of claim 20 to 22, including：
Mold, by means of the mold, by impact extrusion, either at least one cannelure or longitudinal surface can be formed by shrinking
In the ring perimeter surface (104), and
Guan Bi mould (128), the Guan Bi mould are had formed body (134) that at least can be radially movable, are closed by means of described
Molding tool, at least one lock slots (124) can be by stamping.
25. the device according to any one of claim 20 to 22,
The execution machine that the formed body (134) of the wherein described Guan Bi mould (128) by conical or wedge-shapedly is constituted
Structure (140) moves radially.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013010495.5 | 2013-06-25 | ||
| 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104249129A CN104249129A (en) | 2014-12-31 |
| CN104249129B true CN104249129B (en) | 2018-07-20 |
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| 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018126086B4 (en) | 2018-10-19 | 2023-10-12 | Mac Panther Gmbh | Connecting element, method and device for its production |
| DE102018126093A1 (en) | 2018-10-19 | 2020-04-23 | Mac Panther Gmbh | Method and device for producing a connecting element |
| DE102020007945A1 (en) | 2020-12-24 | 2022-06-30 | Mac Panther Gmbh | Connection section with locking groove open on one side |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3015893A1 (en) * | 1980-04-24 | 1981-10-29 | Hilti AG, 9494 Schaan | METHOD FOR PRODUCING TAKE-UP GROOVES ON TOOLS |
| DE8433275U1 (en) | 1984-11-14 | 1986-03-27 | Hawera Probst Gmbh + Co, 7980 Ravensburg | Drilling tool |
| DE19604279B4 (en) * | 1996-02-07 | 2005-04-28 | Bosch Gmbh Robert | Insert tools for rotary hammers and method for its production |
| DE19915303A1 (en) | 1998-04-03 | 1999-10-14 | Hawera Probst Gmbh | Drilling tool made of semi-finished material with different diameters at different sections e.g. for use in rock drilling machine |
| DE19915305C2 (en) * | 1999-04-03 | 2003-11-20 | Hawera Probst Gmbh | drilling |
| ATE332780T1 (en) * | 2002-02-28 | 2006-08-15 | Bosch Gmbh Robert | METHOD FOR MAKING A DRILL OR CUTTER |
| CN100542710C (en) * | 2005-01-31 | 2009-09-23 | 昭和电工株式会社 | Upsetting processing method and upsetting processing unit (plant) |
| DE102008055637A1 (en) | 2008-11-03 | 2010-05-06 | Südsta AG | Rod and method for its production |
| DE102009028020B4 (en) * | 2009-07-27 | 2011-07-28 | Hilti Aktiengesellschaft | Drill and manufacturing process |
| DE102010002167A1 (en) * | 2010-02-22 | 2011-08-25 | Hilti Aktiengesellschaft | Manufacturing method for an insertion end |
| DE102010018791A1 (en) * | 2010-04-29 | 2011-11-03 | Illinois Tool Works Inc. | A method of manufacturing an elongate tool having a working portion and a male portion |
| DE102010028474A1 (en) * | 2010-05-03 | 2011-11-03 | Hilti Aktiengesellschaft | Hollow drill and manufacturing process |
| DE102010061905A1 (en) | 2010-11-24 | 2012-05-24 | Mac Panther Gmbh | Method for producing the insertion end of a drill |
| 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
-
2014
- 2014-03-26 EP EP14161805.8A patent/EP2839900B1/en active Active
- 2014-06-25 CN CN201410291375.8A patent/CN104249129B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104249129A (en) | 2014-12-31 |
| EP2839900B1 (en) | 2017-07-12 |
| EP2839900A1 (en) | 2015-02-25 |
| DE102013010495A1 (en) | 2015-01-08 |
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