EP1393887A2 - Presse à entraínement électrique, en particulier à entraínement servo-électrique - Google Patents
Presse à entraínement électrique, en particulier à entraínement servo-électrique Download PDFInfo
- Publication number
- EP1393887A2 EP1393887A2 EP03015915A EP03015915A EP1393887A2 EP 1393887 A2 EP1393887 A2 EP 1393887A2 EP 03015915 A EP03015915 A EP 03015915A EP 03015915 A EP03015915 A EP 03015915A EP 1393887 A2 EP1393887 A2 EP 1393887A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- press according
- electric drive
- brake
- press
- 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.)
- Withdrawn
Links
- 238000012360 testing method Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 101100328887 Caenorhabditis elegans col-34 gene Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
- B30B1/186—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
- B30B15/148—Electrical control arrangements
Definitions
- the present invention relates to a press electric drive, in particular servo drive, which directly or indirectly a spindle for linear movement of a pestle drives.
- Such presses are of various shapes and designs already known and available on the market.
- a disadvantage of such presses is that they are not without Have another switch off during operation and the tappet to continues to standstill of the electric drive. Wait for this standstill until, for example, a workpiece removed or used for further processing can is undesirable.
- These are complex Security doors, security strips or the like are required, which must remain closed until a the press has actually come to a standstill.
- Such Safety devices are expensive and require a lot Time and do not serve an optimized production.
- the present invention is based on the object To create press of the type mentioned, which the mentioned disadvantages eliminated, and with which on inexpensive and easy way to ensure the safety of the press is significantly increased in operation, with a fast Exchange of tools and / or workpieces if necessary in the operating state through an open engagement opening in a housing of the press should be possible without one There is a risk of injury to the operating personnel.
- Corresponding different circuits can be used for this or brake circuits provided in the brake control be at least one on a corresponding signal Sensor element out, the electric drive 6 in one Switch generator operation and the electric drive to use as a brake.
- a press R 1 has a frame 1, wherein a plunger 4 can be moved back and forth in a housing 2 in a guide 3, which is connected to the frame 1, in the double arrow direction X shown.
- the plunger 4 is moved back and forth via at least one spindle 5 in the double arrow direction, a running nut 6 being provided between the spindle 5 and the plunger 4.
- an electrical one Drive 6 arranged parallel to the spindle 5 and drives this by means of a belt 7, for example.
- the housing 2 is preferably one on the front Engagement opening 8 formed, for example, on a tool or workpiece carrier 9 workpieces or tools that processed by means of the plunger 4, in particular formed be stretched or brought in.
- an area of the engaging opening 8 is detected by means of at least one sensor element 10, for example by means of an infrared or light curtain, and that the at least one sensor element 10 detects a signal when the area of the engaging opening 8 is intervened, for example detects which is transmitted to a brake controller 11.
- the sensor elements 10 can be arranged in a ceiling, floor or wall area, or as shown in the embodiment according to FIG. 2 for a press R 2 , in each case in the side walls 12, 13 of the housing 2, in order to cover a detectable area, in particular to produce in the area of the engagement opening 8. This should also be within the scope of the present invention.
- Another advantage with the present invention is that on a display 14 only indicated here and through corresponding circuit of the brake control 11 a permanent operational readiness of the electric brake, especially their circuit for switching the electric drive 6 can be displayed in generator mode. In this way it can be seen externally that the Brake operation is actively monitored or activated.
- a mechanical, electromechanical, pneumatic or hydraulic operated braking device 15 the electric drive 6 can be assigned in order to brake it very quickly, to stop a feed movement of the ram 4. It should but are also within the scope of the present invention, that such a braking device 15 after switching off the electric drive 6, on an electrical signal of the Sensor element 10 is turned on. In addition, too be considered such a braking device 15 of the Assign spindle 5 to after switching off the electrical Drive 6, upon a signal from sensor element 10, to activate this braking device 15 to make a movement to stop or brake the plunger 4 very quickly.
- At least one contactor 16.1, 16.2 switches the electric drive 6 from a voltage source 17 to generator operation, in which at least one between each of the phases U, V, W is used Phases U and V, V and W and W and U inserted load resistor L R switched on and the voltage source 17 is switched off.
- the electric drive 6 turns into one Generator operation and brakes the drive movement.
- the at least one contactor 16.1, 16.2 can be controlled and the load resistors L R switched on and the voltage source 17 or the electric drive 6 switched off via a module 18 which is only indicated here.
- the module 18 has a test module 19 can be assigned to each phase U, V and W connected.
- the test module 19 is preferred after switching to generator operation and if necessary after the electrical and / or mechanical braking by means of one not shown and numbered here Test circuit the state of the brake circuit, in particular the condition of each component of the brake circuit is determined.
- the impedance between phase U and V or V and W and W and U measured and with a stored selectable reference value, as tolerance range or Reference window compared.
- the test module 19 is preferably used DC and AC impedance each Phase pair between U and V, V and W and W and U des complete circuit and measured with a selectable, adjustable and specified tolerance range compared. If this measurement is within the tolerance range, then all components in order, i.e. all components of the Brake circuit are reliable. This additional Review also allows an increase in Press safety in operation.
- a plurality of load resistors per phase pair can be used as load resistors L R, if necessary in parallel, in series or in a star connection, so that, for example, a sufficient braking effect can be achieved by the others in the event of a defective load resistor.
- a possible defect in an individual load resistor can then be recognized and this can then be exchanged.
- This also increases the safety of the press during operation, so that, for example, the braking effect is not negligibly impaired if a single load resistor is defective. This should also be within the scope of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10240579 | 2002-08-29 | ||
| DE10240579 | 2002-08-29 | ||
| DE10244318A DE10244318A1 (de) | 2002-08-29 | 2002-09-23 | Presse mit elektrischem Antrieb, insbesondere elektrischem Servoantrieb |
| DE10244318 | 2002-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1393887A2 true EP1393887A2 (fr) | 2004-03-03 |
| EP1393887A3 EP1393887A3 (fr) | 2004-03-31 |
Family
ID=31496754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03015915A Withdrawn EP1393887A3 (fr) | 2002-08-29 | 2003-07-12 | Presse à entraínement électrique, en particulier à entraínement servo-électrique |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1393887A3 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426606A (en) * | 1982-11-08 | 1984-01-17 | Sanyo Denki Co., Ltd. | Emergency stop device for brushless motors |
| US5469031A (en) * | 1994-10-21 | 1995-11-21 | Cincinnati Milacron Inc. | Dynamic braking for electric motors in a plastics processing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127599A (en) * | 1981-01-29 | 1982-08-07 | Toshiba Mach Co Ltd | Brake display device |
| GB2258186A (en) * | 1991-07-30 | 1993-02-03 | Hadley Ind Plc | Press with positioning motor |
| JP3422456B2 (ja) * | 1997-03-31 | 2003-06-30 | 株式会社小松製作所 | サーボプレスの制御装置 |
| JPH11267900A (ja) * | 1998-03-18 | 1999-10-05 | Aida Eng Ltd | サーボプレスの停止動作の監視装置 |
| JP3941384B2 (ja) * | 2000-12-05 | 2007-07-04 | アイダエンジニアリング株式会社 | 駆動装置並びにプレス機械のスライド駆動装置及び方法 |
-
2003
- 2003-07-12 EP EP03015915A patent/EP1393887A3/fr not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426606A (en) * | 1982-11-08 | 1984-01-17 | Sanyo Denki Co., Ltd. | Emergency stop device for brushless motors |
| US5469031A (en) * | 1994-10-21 | 1995-11-21 | Cincinnati Milacron Inc. | Dynamic braking for electric motors in a plastics processing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1393887A3 (fr) | 2004-03-31 |
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| RIC1 | Information provided on ipc code assigned before grant |
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Effective date: 20060808 |