EP3575035A1 - Outil pneumatique - Google Patents

Outil pneumatique Download PDF

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Publication number
EP3575035A1
EP3575035A1 EP18174681.9A EP18174681A EP3575035A1 EP 3575035 A1 EP3575035 A1 EP 3575035A1 EP 18174681 A EP18174681 A EP 18174681A EP 3575035 A1 EP3575035 A1 EP 3575035A1
Authority
EP
European Patent Office
Prior art keywords
housing
component
contact
switching element
head housing
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.)
Granted
Application number
EP18174681.9A
Other languages
German (de)
English (en)
Other versions
EP3575035B1 (fr
Inventor
Stefano Carbone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Univer SpA
Original Assignee
Univer SpA
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Filing date
Publication date
Application filed by Univer SpA filed Critical Univer SpA
Priority to EP18174681.9A priority Critical patent/EP3575035B1/fr
Publication of EP3575035A1 publication Critical patent/EP3575035A1/fr
Application granted granted Critical
Publication of EP3575035B1 publication Critical patent/EP3575035B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps
    • B25B5/06Arrangements for positively actuating jaws
    • B25B5/061Arrangements for positively actuating jaws with fluid drive
    • B25B5/064Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps
    • B25B5/06Arrangements for positively actuating jaws
    • B25B5/12Arrangements for positively actuating jaws using toggle links
    • B25B5/122Arrangements for positively actuating jaws using toggle links with fluid drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps
    • B25B5/16Details, e.g. jaws, jaw attachments

Definitions

  • the invention relates to a pneumatically operable working device, in particular for use in the bodywork of the motor vehicle industry, with a particular double-acting cylinder, a cylinder housing, a displaceable in this piston and connected thereto, linearly displaceable and led out of the cylinder housing piston rod for actuating an arm, in particular a clamping arm or swivel arm, of the working device, wherein the region of the piston rod arranged outside the cylinder housing is arranged within a head housing of the working device and the piston rod accommodates at least one switching element within the head housing, and with a device connected to the head housing for detecting and Querying at least one position of the switching element, wherein the head housing has two interconnected housing parts and in a separation region of the two housing parts, the device is arranged.
  • Such implements in which the piston rod acts on the arm via a toggle lever, in particular tensioning arm or pivoting arm, of the working device, are usually referred to as a toggle lever tensioning device or toggle lever pivoting device.
  • the clamping arm In a work tool with clamping arm this is usually the task to clamp a workpiece or an object.
  • the clamping arm In the one end position of the displaceable piston, the clamping arm assumes its clamping position, while in the other end position of the piston, the clamping arm is in the open position.
  • the piston rod can be adjustable in length, so that different opening angle of the clamping arm can be displayed by means of the implement. In this case, the same position of the switching element in the clamping position of the clamping arm and a variable depending on the selected length of the piston rod position of this switching element or another switching element by means of the device queried by the means for detecting and querying one hand.
  • a device for detecting and interrogating at least one position of a switching element in this case a plurality of positions of the switching element, as a component form. This is inserted in total into a recess between two housing parts of a head housing and screwed from the outside to the head housing.
  • This design of the device requires a complex assembly, because the device is used in the longitudinal extension of the implement and previously Is cylinder housing of the implement to dismantle, because the device is to be inserted from the region of the cylinder housing in the head housing.
  • the one-piece construction of the device is also insufficient or not suitable for different series of implements.
  • the device for detecting and interrogating at least one position of the switching element is designed in two parts.
  • the device has a disposed within the head housing mechanical component, which is displaceable under the action of the piston rod-side switching element. In accordance with the displacement position of the component, this cooperates with optical sensors of a further part of the device for detecting and interrogating, which is arranged outside the head housing and screwed thereto.
  • this working device has been sold extensively by the Applicant and has several electrical displays and an electrical connection for an electrical device for querying the at least one position of the switching element.
  • at least one or both end positions of the piston rod can be detected and displayed directly on the implement and / or the external device.
  • Object of the present invention is to develop a working device of the type mentioned so that in the area of the device for detecting and querying a significant simplification in terms of design and installation is recorded and beyond with respect to different series an effective standardization is possible.
  • the means for detecting and interrogating a first component for detecting the at least one position of the switching element and a second separate component for interrogating the at least a position of the switching element wherein the first component is mounted in the two housing parts between them, and the first component on a side facing an interior of the head housing detecting means for detecting the at least one position of the switching element and the first component on an exterior of the Head housing side facing first electrical contact means which cooperate with the detection means, wherein the second component is arranged in the region of the exterior of the head housing side facing and connected to the head housing, and the second component second electrical contact means which contact the first contact means, and having output means cooperating with the second contact means, the output means outputting the detected by means of the detection means at least one position of the switching element.
  • this working device thus takes place a functional separation of the means for detecting and interrogating at least one position of the switching element in the two components, namely first component and second component.
  • the first component is used to detect at least one position of the switching element
  • the second component is used to interrogate at least one position of the switching element.
  • the two components interact exclusively via the contact means associated therewith, thus the first electrical contact means and the second electrical contact means. Because of this functional separation of the means for detecting and interrogating at least one position of the switching element, a single second component can be used for the entire production range of different pneumatically operable implements. This allows a significant reduction of stock and the reduction of spare parts. Concerning this second component, only the same spare part is to be stocked.
  • the second component Since the second component is positioned in the region of the outside of the head housing, it can be easily attached to the head housing or disassembled with respect to the head housing.
  • the storage of the first component is particularly simple and safe, because it is stored in the two housing parts between them.
  • a particularly simple design is given in this regard, when the first component is inserted into the one housing part, in particular inserted and then the two housing parts are joined together, wherein the first component is inserted into the other housing part, in particular plugged. If the two housing parts firmly connected to each other, in particular bolted together, no further fastening means for the first component for the purpose of their storage in the two housing parts are required.
  • the electrical contacting of the two components of the device for detecting and interrogating at least one position of the switching element is particularly advantageous when connecting the second component to the head housing already stored in the head housing first component. It is only necessary to bring the second component in its mounting position relative to the head housing. In this case, their second electrical contact means come directly into contact with the first electrical contact means of the first component. There are thus no special measures to provide for connecting the two contact means in this training.
  • the one contact means has a resilient contact spring and the other contact means has a contact plate, wherein the contact spring contacts the contact plate.
  • the contact plate can thus be rigid, while the contact spring is yielding. Due to the resilience of the contact spring a system of contact means under bias and thus a permanently secure contact is guaranteed.
  • the resilient contact spring is assigned in particular to the second component.
  • this is structurally more expensive to provide an arrangement in which the compliant contact spring of the first component is associated, thus representing the first electrical contact means.
  • the detection means of the first component are preferably designed as optical sensors.
  • it is one or more sensor pairs, wherein the respective sensor pair is formed by an optical transmitter and an optical receiver.
  • the detection means are in particular associated with the first contact means in that region of this contact means in which the switching element connected to the piston rod is in an open position of the arm, in particular clamping arm or swivel arm. It may well be provided further detection means which detect other positions of the arm, for example, a position of the arm, which corresponds to the other end position, in particular a closed position of the clamping arm.
  • the second component has in particular a housing.
  • This housing is in particular connected to two housing parts of the head housing, in particular screwed to this.
  • the housing of the second component preferably has the second contact means on a side facing the head housing, and the dispensing means are arranged on one or more other sides.
  • the output means comprise one or more electrical displays or an electrical connection for an external device.
  • the electrical displays are, in particular, lamps, wherein in particular a lamp lights up when the switching element is in a position between a sensor pair, which is arranged at a position that the position of the switching element in the open end position of the arm, in particular Clamping arm, corresponds.
  • the clamping arm is in a different position, thus the switching element in a deviating position, this sensor pair determines no presence of the switching element and then it lights up the other light, indicating that the arm is not in the open position or the switching element itself not in the position corresponding to this opening position.
  • Another light can indicate, for example, whether the electrical device for detecting and interrogating at least one position of the switching element is energized or de-energized.
  • the likewise provided electrical connection for an external device makes it possible not to query this information directly to the second component, but to supply via a line connected to the electrical connection for the purpose of query an external electrical device.
  • the first component is in particular designed such that it has a strip-shaped main body.
  • a strip-shaped main body Such a can be particularly easily stored in the two housing halves between them and is also functionally optimally designed under the aspect of the linear travel path of the switching element.
  • the base body is designed such that it receives on one side of the detection means and on one side facing away from the first contact means.
  • This design is functionally particularly advantageous because the detection means are assigned directly to the path of movement of the switching element and the first contact means, from the outside of the head housing particularly well accessible, is assigned directly to the second contact means.
  • the base body has projections or recesses on opposite sides, which engage in recesses or projections of the housing parts that are designed to be complementary. Due to this design, a particularly simple arrangement and connection of the base body and thus the first component in the head housing can be created by a positive connection arrangement between the base body and the housing parts is accomplished.
  • the main body on opposite sides of projections in particular frustoconical projections which are used in interconnected housing parts in recesses, in particular frusto-conical recesses of the housing parts, in particular are used without play. Consequently, no independent fastening means for securing the base body and thus the first component on the head housing are required.
  • the base body is inserted into the one housing part of the head housing and then plugged the other housing part to the base body, wherein the two housing parts then lie against each other and it is only necessary to screw the two housing parts together.
  • the head housing has a passage in the separation region of the two housing parts, wherein the first contact means are arranged in the region of the passage. Accordingly, a particularly simple contacting of the first contact means with the second contact means is possible when the second component is applied to and connected to the first component.
  • a pneumatically operated implement 1 is used in particular in the bodywork of the motor vehicle industry.
  • the working device 1 has a double-acting cylinder 2.
  • This has a cylinder housing 3, a displaceable in this, not shown piston and connected to the piston, linearly displaceable and led out of the cylinder housing 3 piston rod 4 for actuating an unillustrated arm of the implement 1 on.
  • the outside of the cylinder housing 3 arranged region of the piston rod 4 is disposed within a head housing 5 of the implement 1.
  • the piston rod 4 In the region of its end facing away from the piston, the piston rod 4 is pivotally connected to a toggle lever 6, the other end is rotatably connected to an output shaft 7.
  • the piston rod 4 accommodates a switching element 12 within the head housing 5. This is linearly moved in accordance with the retraction and extension movement of the piston rod 4.
  • the switching element 12 is formed as perpendicular to the longitudinal axis of the piston rod 4 extending, oriented by the piston rod 4 in the direction of the receptacles 4 flag.
  • the working device 1 has a device 13 connected to the head housing 5 for detecting and interrogating at least one position of the switching element 12, specifically for detecting two end positions of the switching element 12.
  • This device 13 is arranged in a separation region of the two housing parts 8, 9, thus where the head housing 5 is divided.
  • the device 13 has a first component 14 for detecting the two end positions of the switching element 12 and a second, separate component 15 for interrogating these two positions of the switching element 12.
  • the first component 14 is mounted in the two housing parts 8, 9 between them.
  • the first component 14 on a side facing an interior of the head housing 4 detecting means 16 for detecting the two mentioned positions of the switching element 12.
  • the first component 14 also has on a side facing the exterior of the head housing 5 side first electrical contact means 17, which cooperate with the detection means 16, on.
  • the second component 15 is arranged in the region of the exterior of the head housing 5 facing side and connected to the head housing 5, specifically with the two housing parts 8 and 9.
  • the second component 15 has second electrical contact means 18 which contact the first contact means 17 and output means 19 cooperating with the second contact means 18.
  • the output means 19 output the detected by means of the detection means 16 positions of the switching element 12.
  • the first component 14 has a strip-shaped main body 20. This takes on one side of the detection means 16 and on the side facing away from this side, the first contact means 17.
  • the main body 20 has on opposite sides projections 21, wherein two projections 21 are aligned with each other.
  • the projections 21 engage in complementary designed recesses 22 of the housing parts 8 and 9 a. Specifically, two projections 21 arranged on one side of the main body 20 engage in two recesses 22 of one housing part 8 and two projections 21 arranged on the other side of the main body 20 in two recesses 22 of the other housing part 9.
  • the projections 21 and recesses 22 are frustoconical.
  • the base body 20 Before mounting the head housing 5, thus the screwing together of the housing parts 8 and 9, the base body 20 is inserted with its arranged on one side two projections 21 in the two associated recesses 22 of the housing part 8 and then the two housing parts 8 and 9 abutting each other wherein the protrusions 21 of the base body 20 located on the other side engage in the facing recesses 22 of the other housing part 9. In this state, the two housing parts 8, 9 are screwed together.
  • the detection means 16 are designed as optical sensors. Specifically, two sensor pairs 23, 24 are provided, wherein the respective sensor pair is formed by an optical transmitter 25 and an optical receiver 26. Light is directed from the optical transmitter 25 to the optical receiver 26. If the movable switching element 12 interrupts the light beam, this is detected by the first component 14 and this information is forwarded to the second component 15.
  • the head housing 5 has a passage 27 in the separation area of the two housing parts 8, 9. In the region of the passage 27, the first contact means 17 are arranged.
  • the second component 15 has a housing 28. This is bolted to the two housing parts 8, 9.
  • the housing 28 accommodates the second contact means 18 on the side facing the head housing 5 and the dispensing means 19 are arranged on the side of the housing 28 facing away from this side.
  • the output means 19 comprise a plurality of electrical displays, in particular three electrical displays 29 and an electrical connection 30 for an external device.
  • the three displays 29 are those which have the state "current applied”, Indicate "arm in one end position" and “arm in the other end position", these two end positions in a clamping arm denote its opening and closing position and denote a Schwenkarm whose two Schwenkendpositionen.
  • the electrical connection 30 can be connected to an external device so that the queried positions of the switching element can be additionally displayed there.
  • the first contact means 17 a rigid contact plate 31 with a plurality of contacts 34 and the second contact means 18 compliant contact springs 32 which contact the contacts 34 of the contact plate 31 under spring bias when the second component 15 is bolted to the head housing 5.
  • the attachment is effected by means of two screws 33 which pass through the housing 28 and are screwed into the housing parts 8, 9.
  • the implement 1 according to the in the FIGS. 19 and 20 illustrated second embodiment differs from the first embodiment only in that the first contact means 17 as contact springs 32 and the second contact means 18 are formed as a rigid contact plate 31 with the contacts 34.
  • the contact surfaces of the contact springs 32 and contacts 34 are preferably gold plated.
  • the protection class IP 65 represent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Jigs For Machine Tools (AREA)
EP18174681.9A 2018-05-29 2018-05-29 Outil pneumatique Active EP3575035B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18174681.9A EP3575035B1 (fr) 2018-05-29 2018-05-29 Outil pneumatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18174681.9A EP3575035B1 (fr) 2018-05-29 2018-05-29 Outil pneumatique

Publications (2)

Publication Number Publication Date
EP3575035A1 true EP3575035A1 (fr) 2019-12-04
EP3575035B1 EP3575035B1 (fr) 2022-05-11

Family

ID=62455416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18174681.9A Active EP3575035B1 (fr) 2018-05-29 2018-05-29 Outil pneumatique

Country Status (1)

Country Link
EP (1) EP3575035B1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004019495U1 (de) * 2004-12-17 2005-03-10 Tünkers Maschinenbau Gmbh Durch Druckmitteldruck, insbesondere pneuamtisch, betätigte Kolben-Zylinder-Einheit, bei welcher ein mit einer Kolbenstange verbundener Kolben durch Druckmittelbeaufschlagung linear bewegbar ist, z.B. druckmittelbetätigbare Kniehebelspannvorrichtung, insbesondere für den Karosseriebau der Kfz-Industrie
EP1524081A2 (fr) * 2003-10-16 2005-04-20 VEP Automation S.r.l. Unité de contrôle pour contrôler la position en fin de course d'un bras de serrage rotatif d'un dispositif de serrage à leviers articulés
EP1878539A1 (fr) 2006-06-26 2008-01-16 UNIVER S.p.A. Dispositif de fixation et/ou de centrage pour pièces de travail, avec positions de fonctionnement réglables manuellement
DE102009054153A1 (de) * 2009-11-23 2011-05-26 De-Sta-Co Europe Gmbh Spannvorrichtung
EP2548700A1 (fr) 2011-07-20 2013-01-23 UNIVER S.p.A. Outil pneumatique
DE102013001004B3 (de) * 2013-01-22 2014-02-06 Tünkers Maschinenbau Gmbh Vorrichtung zum Spannen, Prägen, Schweißen, Clinchen oder Schwenken von Bauteilen, mit einer Sensorvorrichtung zur Positionsbestimmung eines länglichen Verstellteils, welches mit einem Kniehebelgelenk ein schwenkbares Vorrichtungsteil antreibt
EP2752271A1 (fr) * 2011-09-02 2014-07-09 SMC Kabushiki Kaisha Dispositif de serrage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524081A2 (fr) * 2003-10-16 2005-04-20 VEP Automation S.r.l. Unité de contrôle pour contrôler la position en fin de course d'un bras de serrage rotatif d'un dispositif de serrage à leviers articulés
DE202004019495U1 (de) * 2004-12-17 2005-03-10 Tünkers Maschinenbau Gmbh Durch Druckmitteldruck, insbesondere pneuamtisch, betätigte Kolben-Zylinder-Einheit, bei welcher ein mit einer Kolbenstange verbundener Kolben durch Druckmittelbeaufschlagung linear bewegbar ist, z.B. druckmittelbetätigbare Kniehebelspannvorrichtung, insbesondere für den Karosseriebau der Kfz-Industrie
EP1878539A1 (fr) 2006-06-26 2008-01-16 UNIVER S.p.A. Dispositif de fixation et/ou de centrage pour pièces de travail, avec positions de fonctionnement réglables manuellement
DE102009054153A1 (de) * 2009-11-23 2011-05-26 De-Sta-Co Europe Gmbh Spannvorrichtung
EP2548700A1 (fr) 2011-07-20 2013-01-23 UNIVER S.p.A. Outil pneumatique
EP2752271A1 (fr) * 2011-09-02 2014-07-09 SMC Kabushiki Kaisha Dispositif de serrage
DE102013001004B3 (de) * 2013-01-22 2014-02-06 Tünkers Maschinenbau Gmbh Vorrichtung zum Spannen, Prägen, Schweißen, Clinchen oder Schwenken von Bauteilen, mit einer Sensorvorrichtung zur Positionsbestimmung eines länglichen Verstellteils, welches mit einem Kniehebelgelenk ein schwenkbares Vorrichtungsteil antreibt

Also Published As

Publication number Publication date
EP3575035B1 (fr) 2022-05-11

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