CN102695570A - Ejection device for a threading machine - Google Patents
Ejection device for a threading machine Download PDFInfo
- Publication number
- CN102695570A CN102695570A CN201180005315XA CN201180005315A CN102695570A CN 102695570 A CN102695570 A CN 102695570A CN 201180005315X A CN201180005315X A CN 201180005315XA CN 201180005315 A CN201180005315 A CN 201180005315A CN 102695570 A CN102695570 A CN 102695570A
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- CN
- China
- Prior art keywords
- parts
- ejecting device
- screw rod
- release
- tapping machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H9/00—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
- B21H9/02—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass for screw-rolling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Saccharide Compounds (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
An ejection device (1) suitable for ejecting a screw (3) after being threaded by a threading machine (2), com- prising: Supporting means (7) suitable for being assembled on said threading machine (2); ejecting means (13) supported by said supporting means (7) and suitable for coming into contact with said screw (3); return means (24) cooperating with said ejecting means (13); said ejecting means (13) being movable between a with not drawn position (R) with respect to said supporting means (7), towards which said ejecting means (13) are pushed by said screw (3) due to the movement impressed by said threading machine (2) so as to oppose and mechanically load said return means (24), and an extended position (P) at least partially with respect to said supporting means (7), towards which said ejecting means (13) are propelled by said return means (24) so as to expel said screw (3) from said threading machine (2).
Description
Technical field
The present invention relates to ejecting device, be specially adapted to be contained in lathe and for example be used for the machine that object is shaped, in particular for screw rod or similarity piece are formed on the machine of screw thread.
Background technology
The known forming machine that is used to process screw flight comprise the retaining thread chasing tool be applicable to the screw rod that will form screw thread against and constitute movable threaded chasing tool with respect to the parallel motion of retaining thread chasing tool.The movable threaded chasing tool that is used for contacting with screw rod and the surface of retaining thread chasing tool are formed with suitable shape so that on screw rod, obtain desired screw thread.
Movable threaded chasing tool keeps the motion of preset distance ground at its duration of work and retaining thread chasing tool, and it along with it is carried, forces screw rod to be rolled on the retaining thread chasing tool screw rod, and applies forming pressure above that, produces desired screw thread like this.Usually, also want atomizing of liquids for example oily so that screw rod lubricated and that cooling is being processed.
In case movable threaded chasing tool arrives its end of travel, then screwed screw rod just contacts with movable threaded chasing tool, and no longer contact with the retaining thread chasing tool basically.At this moment, must from these chasers, threaded screw rod be taken out.For this reason, the compressed air ejecting device is got involved, and it provides continuous compressed air jet to screw thread so that from machine, it is taken out.
The known defect of this ejecting device is that this also means expensive owing to obtain, control and use the energy consumption height of the needed work operation of compressed air.
In addition, top release system noise is higher relatively, therefore produces high noisy and pollutes, and this is harmful especially near the staff being positioned at forming machine.
Because air for continuous provides and does not just provide where necessary, so the defective above having aggravated.
Another defective of above ejecting device is that compressed air jet makes oil splash, thereby has made us accepting ground contamination the working region around the machine everywhere when cold oil around the impact screw rod and lubricant.
Another defective is that ejecting device can not take out threaded screw rod reliably from tapping machine.In other words; Compressed air jet possibly be not enough to the obstruction that screw rod is released and this can cause the machine appearance not expected, this causes badly damaged also can causing for the dangerous accident of staff that is in the machine near zone except meeting to machine self.In addition, for let the mechanical recovery original state or to place under repair, need the long machine stoppage phase, the result causes the production cycle loss.
Summary of the invention
One object of the present invention is to improve and is used for the known devices screw rod released from the chaser of tapping machine.
Another object of the present invention is to provide very economical and simple in structure but same effectively ejecting device.
Another object of the present invention is to provide a kind of like this ejecting device, and it can reduce the cost of producing screw rod greatly, and obviously improves environmental working condition, and tapping machine cleannes and the noise aspect on every side that is equipped with it especially above that improves.
Description of drawings
In order to understand the present invention and embodiment thereof better, referring now to following accompanying drawing, these accompanying drawings have provided the non-limiting embodiment of some illustrative, wherein:
Fig. 1 is vertical sketch map, demonstrate the ejecting device according to the present invention that is in first operating position with and on be equipped with the part of the tapping machine of said device;
Fig. 2 demonstrates tapping machine and the ejecting device that is in second operating position;
Fig. 3 demonstrates tapping machine and the ejecting device that is in the 3rd operating position;
Fig. 4 demonstrates first form according to ejecting device of the present invention;
Fig. 5 demonstrates second form according to ejecting device of the present invention.
The specific embodiment
With reference to Fig. 1-5, these accompanying drawings show ejecting device 1, and it can be used for the screw rod production field, are particularly useful for various tapping machines.The tapping machine of institute's reference comprises so-called " making up gradual " forming machine, it forms desired screw thread through cold forming process on said screw rod.In case be assemblied on the tapping machine 2, in case 1 of present ejecting device makes screw rod form desired screw thread then can release automatically.In the specification below, specifically provide a kind of like this processing technology, this processing technology comprises that use is included in the suitable cutter elements of being called as in the tapping machine 2 " tapping thread chasing tool " and on each screw rod 3, forms screw thread.The tapping thread chasing tool comprises by the tapping of suitable shaping surface, and these tapping surfaces are forming desired screw thread with screw rod 3 high press contacts the time on the latter.
As in Fig. 1 to 3, being schematically shown, tapping machine 2 comprises the retaining thread chasing tool element 4 that is arranged in the fixed position and constitutes the movable threaded chasing tool 5 that moves with respect to retaining thread chasing tool 4 along operative orientation O.Retaining thread chasing tool 4 and movable threaded chasing tool 5 each interval certain distance parallel relative motions are so that the screw rod 3 that will form screw thread on it can be inserted in therebetween.Between retaining thread chasing tool 4 and movable threaded chasing tool 5, form working region 10, screw rod 3 is advanced during being processed therein.
Specifically, screw rod 3 is arranged to an one of which longitudinal axes L and becomes laterally with respect to operative orientation O and especially substantially perpendicularly arrange.
As shown in Figure 1, ejecting device 1 according to the present invention is connected on the tapping machine 2, especially near the first area of the end 6 of movable threaded chasing tool 5.
This ejecting device 1 comprises supportive body 7, its constitute through be contained in respective fixation mouth or the hole 8 suitable fixture for example screw be assemblied on the tapping machine 2.Supportive body 7 can have the arbitrary form that its that part of geometry in particular of assembling tapping machine 2 is above that matched.In this respect, form and/or quantity and/or position and/or the size of suitably selecting permanent opening 8 are to match with specific tapping machine 2.Figure 4 and 5 illustrate two kinds of multi-form supportive bodies 7, and they are the different identical functions of still carrying out aspect geometry.
Ejecting device 1 comprises releases element 13, in a single day it is applicable to contact and formed screw thread with screw rod 3 and just screw rod is released.Specifically, releasing formation contact jaw 15 on the element 13, especially circular contact jaw perhaps has suitable shapes so that under the situation of not damaging screw rod 3, interact effectively with screw rod 3 in any situation.
Release element and be positioned near the upper surface 9 of supportive body 7, this upper surface 9 is arranged on the opposite flank with respect to connecting surface 11, therefore facing to working region 10.
Releasing element 13 can be with respect to supportive body 7 motion.Specifically, releasing element 13 can move with respect to operative orientation O abreast.Specifically, release element 13 can be therein it with respect to supportive body 7 towards relative end 14, first area movable threaded chasing tool 5 and end 6 at least the part extended position P that stretches out (at Fig. 1,2, shown in 4 and 5) with wherein it moves between the partially retracted at least retracted position R (shown in Fig. 3) with respect to supportive body 7.Specifically, in retracted position R, release the middle section of element 13 near the upper surface 9 of supportive body 7.
For to have the rectangular shape of longitudinal axis X, especially it is bar-shaped or trochoid at the release element 13 shown in these accompanying drawings.Can have different shapes but release element 13, for example it can be plate-like form, and perhaps it can have any suitable in the desired form of carrying out its function.
Figure 4 and 5 illustrate two kinds of multi-form bracket components 12, and they are the different identical functions that still have with respect to supportive body 7 sliding supports release element 13 aspect geometry.
In the form of Fig. 4, each bracket component 12 comprises first elongated portion 16 of substantially perpendicularly arranging with longitudinal axis X and extending in parallel with upper surface 9.Each bracket component 12 comprises the first plate shape part 17 of laterally stretching out from first elongated portion 16.The first plate shape part 17 is shaped as them can join basically close to each otherly, so that correctly be limited to the distance between first elongated portion 16, thereby accurate and the correct assembling and the function of element 13 are released in realization.Hold opening 20 and be positioned on the bracket component 12, release element 13 and be slidingly received in its inside.Specifically, hold on the fringe region 21 that opening 20 is arranged on bracket component 12.
Ejecting device (1) comprises return mechanism 24, and this return mechanism is here with reference to comprising spring 24 in the described exemplary and non-limiting embodiment of accompanying drawing, but spring can be chosen wantonly and comprises various forms of elastic devices.Except spring 24, this return mechanism can comprise for example cylinder of other devices that are equal to.As described in more detail below the same, spring 24 with release element 13 and constitute when screw rod 3 discharges and opened in 4 minutes with retaining thread chasing tool element, to work in coordination with and on screw rod 3, apply release thrust.
Especially the spring 24 that is screw type is with respect to releasing element 13 coaxial arrangement, and has the first end that is pressed against on the relative part 22 and act on the second end on the second bracket component 12b.Spring 24 remains among the extended position P so that will release element 13 when on releasing element 13, not applying any external force for the compression spring and according to relative part 22 being pressed against the mode effect on the first bracket component 12a.When on contact jaw 15, applying the thrust of the mechanical strength that for example is used for overcoming spring 24; As will finding out in more detail below; Releasing element 13 moves towards retracted position R; Wherein contact jaw 15 is near the first bracket component 12a, and actuate part 23 at least part stretch out and surpass the second bracket component 12b.In this structure, return mechanism 24 and therefore release element 13 and have mechanical energy, this mechanical energy can be used for applying propulsive force to screwed screw rod 3 as will seeing below, thereby it is released from tapping machine 2.
Obviously can ejecting device 1 so be constituted, thereby it utilizes extension spring rather than compression spring action after carrying out suitable geometric modification.
Because bracket component 12 can be easy to from supportive body 7 motions; So releasing element 13 for example can be promptly with new release element replacement when wearing and tearing; The release element of the different length that perhaps matches with the geometry in particular with the screw rod that is applicable to the tapping machine and/or the tapping of wanting is replaced, and perhaps only is the maintenance intervention that allows to carry out arbitrary form.
The form of the ejecting device shown in Fig. 51 on effect and structure with the form class of Fig. 4 seemingly.The difference of this form is that the geometry of supportive body 7 is different, and this can more be applicable to dissimilar tapping machine 2, and is used for the bracket component 12 of different geometries.Specifically, each bracket component 12 comprises the second plate shape part 25, and it and the first plate shape part 17 are similar, but have single fixing hole 18, and its size can suitably be selected.
Each bracket component 12 of the form of Fig. 5 also comprises second elongated portion 26, and its elongated portion as first elongated portion 16 extends.
27 places, lower end at each elongated portion 26 are provided with second stationary body 28, and this stationary body is through preventing bracket component 12 because any rotation of not expecting appears in the stress that during the processing of screw rod 3, produces with stationary body 18 cooperations.
Between action period, in the zone of the startup between movable threaded chasing tool element 5 and retaining thread chasing tool element 4 29, the screw rod 3 of the tapping of is placed to the chaser element through unshowned suitable conveying assembly in primary importance A or in-position.Actuate movable threaded chasing tool element 5 subsequently to move towards retaining thread chasing tool element 4 along operative orientation O.In this stage, force screw rod 3 to roll, thereby screw rod receive the plastic force that is used for producing desired screw thread from these chaser elements with respect to movable threaded chasing tool element 5 and retaining thread chasing tool element 4.At this duration of work, screw rod 3 arrives in certain position and releases near element 13, and in the second place B shown in Fig. 2, stops contact jaw 15.From at this time beginning; The screw rod 3 that is compelled to advance owing to the relative motion effect of chaser element 4 and 5 applies towards the thrust of retracted position R releasing on the element 13; Thereby gradually reduce spring 24; Arrive the 3rd position C or exit position up to it from the chaser element, as shown in fig. 3.Near the operation end of chaser element 5, thereby will release almost completely at this moment that element 13 is pressed among the retracted position R and, promptly no longer contacted with retaining thread chasing tool 4 with the screw rod 3 that spring 24 compressions have mechanical energy to it disengagement that becomes.Like this, because screw rod 3 present and retaining thread chasing tool element 4 disengagements are no longer stopped so release element 13, and freely are discharged on the said screw rod 3, thereby on spring 24, accumulated mechanical energy.Specifically, spring 24 stretches rapidly, thereby makes that releasing element 13 gets back to extended position P, and acts on like this on the screw rod 3, thereby it is pushed open from supportive body 7, promptly makes it to stretch out to surpass and actuates zone 29, and therefore it is released from tapping machine 2.
At this moment, chaser element 4 and 5 can be got back to original state on another screw rod, to carry out new processing.
For prior art systems, ejecting device 1 according to the present invention is more reliable aspect guaranteeing from tapping machine 2 screw rod ejected.In addition; Ejecting device 1 can prevent that the card that between the chaser element, occurs not expecting from blocking up; And therefore avoid occurring to said machine cause the grievous injury not expecting to have or or even accident, this can cause danger to the staff's around this machine safety originally.Because its constructional simplicity and high reliability, so ejecting device 1 avoids appearing at problem in the release system of prior art downtime long problem.This causes having economical advantage under the situation of the production efficiency in remaining on screw rod processing.
And ejecting device 1 according to the present invention is proved the production cost that can obviously reduce screw rod because it used in the prior art normally used cheapness and excessive Compressed Gas.
In addition, except simple and low cost of manufacture, ejecting device 1 can also be realized significantly improving in condition of work aspect around.Specifically, different with the known release system with Compressed Gas, this ejecting device 1 has guaranteed that the tapping machine that is equipped with it on it has lower noise and high cleanliness.
Claims (10)
1. an ejecting device (1) is applicable to after forming screw thread by tapping machine screw rod (3) is released, and comprising:
Support component (7), said support component are applicable to and are assemblied on the said tapping machine (2);
Release parts (13), said release parts are supported by said support component (7) and are applicable to said screw rod (3) and contact;
Reply parts (24), said answer parts and said release parts (13) cooperation;
Said release parts (13) can move with respect to the retracted position (R) of said support component (7) with between at least partly with respect to the extended position (P) of said support component (7); Said ejecting device (13) is pushed so that mechanically load facing to said answer parts (24) and to said answer parts towards retracted position by said screw rod (3) owing to the motion that is applied by said tapping machine (2), and said release parts (13) are pushed so that said screw rod (3) is released from said tapping machine (2) towards extended position by said answer parts (24).
2. ejecting device as claimed in claim 1, wherein said release parts (13) and said answer parts (24) are constituted as from the position that wherein said screw rod (3) and the retaining thread chasing tool element (4) that is included in the said tapping machine (2) separate and begin to apply release thrust at said screw rod (3).
3. according to claim 1 or claim 2 ejecting device; Wherein said support component comprises the supportive body (7) that is applicable to the movable threaded chasing tool element (5) that is arranged in said tapping machine (2); And wherein said release parts comprise oval component (13), and said oval component is by said supportive body (7) sliding support and constitute the parallel motion of direction of advance (O) with said movable threaded chasing tool element (5).
4. ejecting device as claimed in claim 3, wherein said oval component comprises bar-shaped or pivot element (13), and said bar-shaped or pivot element is applicable to that during use the longitudinal axis (L) with said screw rod (3) substantially perpendicularly extends.
5. like each described ejecting device in the claim 1 to 4, also comprise the bracket component (12) that said release parts (13) movably is connected to said support component (7).
6. ejecting device as claimed in claim 5; Wherein said bracket component comprises and being parallel to each other and isolated a pair of bracket component (12a; 12b); Holding opening (20) is arranged in said bracket component and is applicable to and receive said release parts (13) slidably; (12a 12b) is removably fixed to said support component (7) through fixed part to said a pair of bracket component, and said support component (7) removably is assemblied on the said tapping machine (2) through another fixed part.
7. like each described ejecting device in the claim 1 to 6, wherein said answer parts (24) be inserted in said release parts (13) coupling part (22) and with standing part (21) that said answer parts (24) contact between.
8. like each described ejecting device in the claim 1 to 7, wherein said answer parts comprise elastic recovery parts (24).
9. ejecting device as claimed in claim 8, wherein said elastomeric element comprise that round the helical spring (24) of said release parts (13) coaxial arrangement said helical spring comprises compression spring (24) or extension spring.
10. like each described ejecting device in the claim 1 to 7, wherein said answer parts comprise the pneumatic linear actuator device.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI20100008 ITMI20100008U1 (en) | 2010-01-19 | 2010-01-19 | EJECTOR |
| ITMI2010U000008 | 2010-01-19 | ||
| ITMO2010A000284A IT1402582B1 (en) | 2010-01-19 | 2010-10-12 | EJECTOR DEVICE |
| ITMO2010A000284 | 2010-10-12 | ||
| PCT/IB2011/000057 WO2011089498A1 (en) | 2010-01-19 | 2011-01-14 | Ejection device for a threading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102695570A true CN102695570A (en) | 2012-09-26 |
Family
ID=43733483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180005315XA Pending CN102695570A (en) | 2010-01-19 | 2011-01-14 | Ejection device for a threading machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2525927B1 (en) |
| CN (1) | CN102695570A (en) |
| IT (2) | ITMI20100008U1 (en) |
| WO (1) | WO2011089498A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2411932A (en) * | 1945-06-16 | 1946-12-03 | Jack & Heintz Prec Ind Inc | Bolt ejector for thread rollers |
| US3528270A (en) * | 1969-02-10 | 1970-09-15 | Textron Inc | Thread roller |
| US5613391A (en) * | 1995-03-08 | 1997-03-25 | Loncar; Stanley M. | Machine and method for knurling the tip of a needle |
| DE10045747A1 (en) * | 2000-09-15 | 2002-04-11 | Daimler Chrysler Ag | Press piece comprises housing section which deviates from circular shape for enabling non-positive connection between press piece and assembly tool |
| CN2788931Y (en) * | 2005-05-08 | 2006-06-21 | 张向伟 | Automatic charging and discharging thread rolling machine tool for workpieces |
| CN101028642A (en) * | 2006-03-03 | 2007-09-05 | 陈显国 | Automatic skip blanking apparatus of thread rolling machine |
-
2010
- 2010-01-19 IT ITMI20100008 patent/ITMI20100008U1/en unknown
- 2010-10-12 IT ITMO2010A000284A patent/IT1402582B1/en active
-
2011
- 2011-01-14 EP EP11707476.5A patent/EP2525927B1/en not_active Not-in-force
- 2011-01-14 CN CN201180005315XA patent/CN102695570A/en active Pending
- 2011-01-14 WO PCT/IB2011/000057 patent/WO2011089498A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2411932A (en) * | 1945-06-16 | 1946-12-03 | Jack & Heintz Prec Ind Inc | Bolt ejector for thread rollers |
| US3528270A (en) * | 1969-02-10 | 1970-09-15 | Textron Inc | Thread roller |
| US5613391A (en) * | 1995-03-08 | 1997-03-25 | Loncar; Stanley M. | Machine and method for knurling the tip of a needle |
| DE10045747A1 (en) * | 2000-09-15 | 2002-04-11 | Daimler Chrysler Ag | Press piece comprises housing section which deviates from circular shape for enabling non-positive connection between press piece and assembly tool |
| CN2788931Y (en) * | 2005-05-08 | 2006-06-21 | 张向伟 | Automatic charging and discharging thread rolling machine tool for workpieces |
| CN101028642A (en) * | 2006-03-03 | 2007-09-05 | 陈显国 | Automatic skip blanking apparatus of thread rolling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMO20100284A1 (en) | 2011-07-20 |
| WO2011089498A1 (en) | 2011-07-28 |
| IT1402582B1 (en) | 2013-09-13 |
| EP2525927A1 (en) | 2012-11-28 |
| EP2525927B1 (en) | 2014-03-19 |
| ITMI20100008U1 (en) | 2011-07-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |