EP3731997B1 - Outil hydraulique pour un dispositif de traction et/ou de pressage - Google Patents

Outil hydraulique pour un dispositif de traction et/ou de pressage Download PDF

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Publication number
EP3731997B1
EP3731997B1 EP18830478.6A EP18830478A EP3731997B1 EP 3731997 B1 EP3731997 B1 EP 3731997B1 EP 18830478 A EP18830478 A EP 18830478A EP 3731997 B1 EP3731997 B1 EP 3731997B1
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EP
European Patent Office
Prior art keywords
hydraulic
tool
hydraulic tool
screwdriver
power piston
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.)
Active
Application number
EP18830478.6A
Other languages
German (de)
English (en)
Other versions
EP3731997A1 (fr
Inventor
Klaus Reitzig
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.)
Ws Wielander and Schill Engineering & Co KG GmbH
Original Assignee
Ws Wielander and Schill Engineering & Co KG GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP3731997A1 publication Critical patent/EP3731997A1/fr
Application granted granted Critical
Publication of EP3731997B1 publication Critical patent/EP3731997B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/005—Hydraulic driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • B21D28/343—Draw punches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump

Definitions

  • the invention relates to a hydraulic tool for driving a pulling and/or pressing device.
  • the invention particularly relates to a hydraulic tool which is designed as an attachment for a screwdriver, in particular a cordless screwdriver, and with which hydraulic tools for setting rivets, in particular blind rivets, as well as tools for punching or pressing in and out of workpieces can be operated.
  • the disclosure document DE 10 2011 111 533 A1 shows a pneumatic/hydraulic pressure generator, which is designed as a hand-held device and with which riveting tools in particular can be operated.
  • the document DE 200 17 118 U1 shows a tool that can be coupled to a screwdriver, as contained in the preamble of claim 1.
  • the invention is based on the object of providing a hydraulic tool for driving a pulling and/or pressing device, which is powerful and compact, but at the same time can be manufactured particularly easily.
  • the object of the invention is already achieved by a hydraulic tool for driving a pulling and/or pressing device according to claim 1.
  • the invention relates to a hydraulic tool for driving a pulling and/or pressing device.
  • the invention relates to a hydraulic tool by means of which rivets, in particular blind rivets, punch rivets and two-part rivets, are set.
  • the hydraulic tool can also be used to drive a pressing device, for example for punching or pressing in or out components.
  • the hydraulic tool comprises a drive shaft that can be attached to a screwdriver.
  • the hydraulic tool can be attached to an electric screwdriver, in particular a cordless screwdriver.
  • the hydraulic tool comprises a hydraulic pump which is driven by the drive shaft and which pumps hydraulic fluid into the working chamber of a working piston.
  • One aspect of the invention relates to the fact that the hydraulic tool can be attached to a commercially available screwdriver, in particular a cordless screwdriver.
  • a commercially available screwdriver in particular a cordless screwdriver.
  • Such devices which include an electric motor, for example, are available in almost every workshop and are also quite inexpensive.
  • a pump piston is moved in an oscillating manner via the drive shaft that can be connected to the screwdriver, which pumps hydraulic fluid into the working space of a hydraulic working piston.
  • the tool therefore comprises a hydraulic pump piston, also called a plunger, which is part of the hydraulic pump that pumps hydraulic fluid into the working chamber of the working piston through an oscillating movement of the pump piston.
  • a hydraulic pump piston also called a plunger
  • the working piston has a larger surface area subject to pressure than the pump piston.
  • the working piston is at least twenty, preferably fifty, preferably up to 100 times as large as the pump piston in terms of an area subject to hydraulic fluid (relative to the piston area of at least one side of the working piston).
  • a pressure of over 500 bar can be achieved in the working chamber of the working piston.
  • the working cylinder can preferably generate compressive and/or tensile forces of over 10,000 N, particularly preferably over 50,000 N.
  • the hydraulic tool according to the invention can also be constructed from relatively few components, which allows a compact design as a hand-held device to be achieved.
  • the working piston is connected to a coupling for a setting or pressing tool attachment.
  • the hydraulic tool according to the invention is thus constructed in such a modular manner that a tool for different tasks can be designed using different attachments which are coupled to the working piston, for example a blind riveting tool, a tool for setting two-part rivets, and a punching tool.
  • the pump piston can be moved in an oscillating manner by means of an eccentric.
  • an eccentric shaft rotates in two ball or needle bearings.
  • the pump piston pumps the hydraulic fluid into the working chamber of the working piston via a suction and pressure valve.
  • the pump piston preferably has a stroke of more than 1 mm and less than 10 mm, preferably from 2 to 7 mm.
  • the hydraulic tool comprises a reservoir for hydraulic fluid, which serves as a buffer volume when the working piston is moved. This makes it possible to provide a self-contained system in which the hydraulic fluid flowing in or out when the working piston is moved flows into or out of the buffer volume.
  • the working piston of the hydraulic tool is preferably designed as a differential piston.
  • a front piston surface has a smaller surface area exposed to hydraulic fluid than the rear piston surface, particularly due to a tool holder.
  • the hydraulic tool can be set to the forward or backward position of the working piston via a control element.
  • the working piston In the forward position of the working piston, it preferably moves forwards due to the pressure in the hydraulic fluid reservoir, whereas the working piston remains in its position in the backward position when the cordless screwdriver is not operated. This means that the workpiece can be approached slowly when riveting or punching.
  • the hydraulic tool is preferably purely mechanically connected to the setting or
  • the reservoir for hydraulic fluid is arranged behind the working piston and laterally offset from the drive shaft.
  • the reservoir for hydraulic fluid is designed such that it is arranged above the housing of the screwdriver when connected to a screwdriver. This allows a compact design to be provided.
  • the housing of the hydraulic tool is divided into three main sections.
  • a first section of the housing comprises the working space with the working piston and is preferably arranged in front of the drive shaft ("in front of”, “behind”, “above” and “below” in the sense of the invention is understood to mean the position in the installed state from the perspective of a cordless screwdriver standing on its base).
  • the coupled tool attachment is preferably arranged axially to the drive shaft of the screwdriver so that the ergonomic shape of the screwdriver and its operating device can continue to be used if necessary.
  • a second housing section with the reservoir for hydraulic fluid extends laterally offset to the Drive shaft and is therefore arranged next to or above the housing of the screwdriver when connected.
  • a middle housing section in which at least the pump piston, which is part of the hydraulic pump, is arranged.
  • the pump piston is preferably arranged transversely, in particular vertically, to the drive shaft and/or the working piston.
  • the eccentric can thus be connected in line with the drive shaft and drive the pump piston. This also makes it easier to provide a tool with a compact design.
  • the hydraulic tool comprises a control element, depending on the actuation of which hydraulic fluid is conveyed into a working chamber of the working piston either in front of or behind the working piston.
  • the control element is designed in such a way that the hydraulic tool can be put into two operating states, namely either for pressing or for pulling.
  • the hydraulic pump pumps hydraulic fluid into the working chamber behind the working piston, whereas for pulling, the fluid is pumped into the working chamber in front of the working piston.
  • control element is preferably coupled to a hydraulic control valve.
  • this is a spring-return 5/2-way valve, in particular with regard to the functionality of the automatic movement to a predetermined end position.
  • control element is designed such that the working piston must be permanently actuated in order to advance it.
  • the hydraulic tool is designed in such a way that in the basic position of the control element, the working piston is subjected to pressure from the piston rod side, so that the working piston is retracted.
  • the drive shaft of the screwdriver drives the hydraulic pump and the working piston is retracted with such high force that a forming process, for example the setting of a blind rivet, can be carried out.
  • the user In order to advance the working piston via the hydraulic pump, for example for punching or processing two-part rivets, the user must permanently operate the actuating element.
  • the control valve can, as provided in one embodiment of the invention, comprise a rod running transversely, in particular perpendicularly, to the working piston, via which channels running along the rod are opened and closed.
  • the control valve can in particular be switched via a tappet actuation.
  • the reservoir for hydraulic fluid is preferably installed upstream of the hydraulic pump.
  • the accumulator preferably buffers a quantity of hydraulic fluid that is at least as large as, but preferably at least twice the displacement volume of the working cylinder.
  • the accumulator for hydraulic fluid can comprise a piston preloaded by a spring.
  • This piston permanently exerts pressure on the hydraulic fluid in the accumulator.
  • a gas pressure accumulator is conceivable, in which a membrane or a piston is preloaded by gas pressure.
  • the pressure in the accumulator for hydraulic fluid is preferably 5 to 30, particularly preferably 8 to 15 bar.
  • control valve which is designed as a 5/2-way valve, is operated without activating the screwdriver, the working piston moves to the front end position solely due to this pressure.
  • the working piston is designed as a differential piston.
  • the working piston always moves forward without activating the screwdriver, so that when setting a rivet, for example, the setting punch can be moved slowly and without energy expenditure towards the workpiece.
  • the hydraulic tool comprises a pressure control valve, which is preferably designed as a full-stroke safety valve and which preferably offers the possibility of presetting the maximum working pressure or the maximum pressing force.
  • the valve opens when a preset maximum pressure is reached and prevents the preset operating pressure and thus the permissible pressing or pulling force from being exceeded.
  • the overflowing hydraulic fluid flows back into the hydraulic accumulator.
  • the hydraulic tool according to the invention benefits from the fact that cordless screwdrivers usually have an adjustable
  • torque limitation This can be used advantageously to limit the force exerted by the working piston.
  • the pressure control valve ensures that only a specified maximum pressure is reached in the hydraulic area and that, as a result, the maximum torque available on the drive shaft is also limited.
  • the hydraulic tool comprises a torque support which is designed such that it is supported on the housing of the screwdriver.
  • the torque support is arranged on the storage housing for hydraulic fluid.
  • the drive shaft only needs to be clamped into the chuck of the screwdriver.
  • the torque arm supports the hydraulic tool on at least one side, preferably on both sides of the housing. It is therefore not necessary to couple the housing of the hydraulic tool to the housing of the screwdriver using further assembly steps, such as screwing it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (15)

  1. Outil hydraulique (1) pour l'entraînement d'un dispositif de traction et/ou de pressage (100), comprenant un arbre d'entraînement (3) pouvant être monté sur une visseuse (32), l'arbre d'entraînement (3) permettant d'entraîner une pompe hydraulique (35), laquelle pompe du fluide hydraulique dans la chambre de travail (19) d'un piston de travail hydraulique (20),
    caractérisé en ce que l'outil hydraulique (1) comporte un support de couple (103) qui est conçu de manière à être en appui sur le carter de la visseuse (32).
  2. Outil hydraulique (1) selon la revendication précédente, caractérisé en ce que la pompe hydraulique (35) comprend un piston de pompe (15) pouvant être déplacé en oscillation par l'arbre d'entraînement (3), lequel pompe le fluide hydraulique dans la chambre de travail (19) d'un piston de travail hydraulique (20).
  3. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que le piston de travail (29) est relié à un raccord pour un embout d'outil de pose ou de pressage, en particulier un embout d'outil de pose ou de pressage (101) comportant une poignée (42).
  4. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que le piston de pompe (15) peut être déplacé en oscillation au moyen d'un excentrique (23).
  5. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que l'outil hydraulique (1) comporte un réservoir (10) pour le fluide hydraulique, lequel fait office de volume tampon lors du déplacement du piston de travail (20).
  6. Outil hydraulique (1) selon la revendication précédente, caractérisé en ce que le réservoir (10) pour le fluide hydraulique est disposé derrière le piston de travail (20) et décalé latéralement par rapport à l'arbre d'entraînement (3).
  7. Outil hydraulique (1) selon la revendication précédente, caractérisé en ce que le réservoir (10) est soumis à une pression, en particulier au moyen d'un ressort (12) qui s'engage sur un piston (20), de telle sorte que, dans un état non actionné de l'outil hydraulique (1), le piston de travail (20) se déplace dans une position finale, en particulier une position finale avant.
  8. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que l'outil hydraulique (1) comporte un organe de commande (7), dont l'actionnement permet le refoulement de fluide hydraulique dans une chambre de travail (19) du piston de travail (20), devant ou derrière le piston de travail (20) .
  9. Outil hydraulique (1) selon la revendication précédente, caractérisé en ce que l'organe de commande est couplé à une vanne de commande (18), en particulier à une vanne 5/2 voies.
  10. Outil hydraulique (1) selon l'une deux revendications précédentes, caractérisé en ce que l'organe de commande (7) est conçu de telle sorte que, pour faire avancer le piston de travail (20), la vanne de commande (18) doit être actionnée en permanence.
  11. Outil hydraulique (1) selon l'une des deux revendications précédentes, caractérisé en ce que la vanne de commande (18) comprend une tige s'étendant transversalement, en particulier perpendiculairement au piston de travail (18), par lequel des canaux s'étendant le long de la tige sont ouverts et fermés.
  12. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que l'outil hydraulique (1) comprend une vanne de régulation de pression (8) qui, à partir d'une pression maximale prédéfinie, permet un retour du fluide hydraulique dans le réservoir (10) de fluide hydraulique.
  13. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que le support de couple (103) est de préférence monté sur un carter de réservoir de fluide hydraulique.
  14. Outil hydraulique (1) selon l'une des revendications précédentes, caractérisé en ce que le piston de travail (20) est orienté parallèlement, en particulier axialement, à l'arbre d'entraînement (3).
  15. Outil hydraulique (1) selon l'une des revendications précédentes, l'outil hydraulique (1) étant relié à une visseuse (32), notamment une visseuse sans fil, et/ou un accouplement élastique (117) étant disposé entre l'arbre d'entraînement (3) et la pompe hydraulique (35), et/ou l'outil hydraulique (1) comprenant un dispositif de blocage de mandrin (120) pour la visseuse (32), en particulier une visseuse sans fil, et/ou l'outil hydraulique (1) comprenant un arbre d'entraînement (3) avec une masse d'inertie (121), en particulier une masse d'inertie qui est conçue comme cloche d'un dispositif de blocage de mandrin (120) pour la visseuse.
EP18830478.6A 2017-12-21 2018-12-20 Outil hydraulique pour un dispositif de traction et/ou de pressage Active EP3731997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017130840 2017-12-21
PCT/EP2018/086404 WO2019122243A1 (fr) 2017-12-21 2018-12-20 Outil hydraulique pour un dispositif de traction et/ou de pressage

Publications (2)

Publication Number Publication Date
EP3731997A1 EP3731997A1 (fr) 2020-11-04
EP3731997B1 true EP3731997B1 (fr) 2024-06-26

Family

ID=65003375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18830478.6A Active EP3731997B1 (fr) 2017-12-21 2018-12-20 Outil hydraulique pour un dispositif de traction et/ou de pressage

Country Status (4)

Country Link
US (1) US11673249B2 (fr)
EP (1) EP3731997B1 (fr)
DE (1) DE112018006550A5 (fr)
WO (1) WO2019122243A1 (fr)

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EP3731997B1 (fr) * 2017-12-21 2024-06-26 WS Wieländer + Schill Engineering GmbH & Co. KG Outil hydraulique pour un dispositif de traction et/ou de pressage
US11110580B2 (en) 2018-03-22 2021-09-07 James Kevin Panks Pneumatic percussive tool with attachments and method of use thereof
NL2021527B1 (en) * 2018-08-30 2020-04-24 Holmatro B V Tool having a pump and a motor on a common axis
CN111546281B (zh) * 2020-05-12 2021-08-27 三一重机有限公司 一种挖掘机主泵拆装装置
EP4363168A1 (fr) * 2021-06-29 2024-05-08 Enerpac Tool Group Corp. Clé dynamométrique hydraulique
CN115488362A (zh) * 2022-10-25 2022-12-20 安庆帝伯粉末冶金有限公司 用于气门座圈车削的移转上料装置
CN117000848B (zh) * 2023-08-28 2024-07-05 苏州丹卡精密机械有限公司 一种具有缓冲防护功能的冲压模具
CN117548535B (zh) * 2024-01-09 2024-03-29 四川众信通用电力有限公司 一种电气柜生产用板材弯折设备

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DE102014107752A1 (de) * 2014-06-03 2015-12-03 Rehau Ag + Co Werkzeugvorrichtung zum Anschluss eines Kunststoffrohres oder eines Metall-Kunststoff-Verbundrohres an einen Fitting mit einer Schiebe- oder Presshülse
US10317304B2 (en) * 2014-12-23 2019-06-11 Scs Concept S.R.L. Screwdriver test bench
EP3307487B1 (fr) 2015-06-09 2022-06-01 Cembre S.p.A. Équipement de travail portable pour utilisation en déplacement
IT201600076117A1 (it) * 2016-07-20 2018-01-20 Atlas Copco Blm Srl Sistema per controllare il corretto funzionamento di avvitatori industriali.
EP3731997B1 (fr) * 2017-12-21 2024-06-26 WS Wieländer + Schill Engineering GmbH & Co. KG Outil hydraulique pour un dispositif de traction et/ou de pressage

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US20200316765A1 (en) 2020-10-08
US11673249B2 (en) 2023-06-13
WO2019122243A4 (fr) 2019-08-15
WO2019122243A1 (fr) 2019-06-27
DE112018006550A5 (de) 2020-09-03
EP3731997A1 (fr) 2020-11-04

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