WO2016128770A1 - Outil à main - Google Patents

Outil à main Download PDF

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Publication number
WO2016128770A1
WO2016128770A1 PCT/GB2016/050351 GB2016050351W WO2016128770A1 WO 2016128770 A1 WO2016128770 A1 WO 2016128770A1 GB 2016050351 W GB2016050351 W GB 2016050351W WO 2016128770 A1 WO2016128770 A1 WO 2016128770A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
head
control system
heads
temperature
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.)
Ceased
Application number
PCT/GB2016/050351
Other languages
English (en)
Inventor
Stuart Mead
Philip Newman
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.)
3D 20 Ltd
Original Assignee
3D 20 Ltd
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
Application filed by 3D 20 Ltd filed Critical 3D 20 Ltd
Publication of WO2016128770A1 publication Critical patent/WO2016128770A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F3/00Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/16Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F1/00Combination or multi-purpose hand tools
    • B25F1/02Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20Post-treatment, e.g. curing, coating or polishing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02Deburring or deflashing

Definitions

  • the present invention relates to a handheld tool. Some embodiments of the invention relate to a heated tool for removing or refining unwanted material from objects produced by 3D printers.
  • 3D printers leave large amounts of unwanted spurs, anomalies and printer supports attached on the final raw prints.
  • 3D printer users struggle with cleaning-up their raw printed models, and are often unable to refine detail and remove large amounts of spurs and supports.
  • the mainstream materials used for 3D printing are thermoplastics, although there is an ever-increasing choice of materials and their corresponding properties. Similar issues may arise in tools used as soldering irons or heated wax tools used by dental technicians and jewellers.
  • a 3D finishing system comprising a handheld device with interchangeable heads based on heat application, rotated abrasion, rotated polishing, or ultrasonic techniques in conjunction with haptic feedback and pre-set settings to remove unwanted material from a 3D printed model.
  • a 3D printer attachment which is fixed to the existing 3D printer's printer head mounting mechanism, may trace the external shape of the 3D print to cut and polish unwanted spurs and printer errors.
  • a haptic feedback system utilising the sense of touch and pressure in a user interface design to provide information to the control system to increase temperature or rotation speed beyond a pre-set setting or return the temperature or rotation speed to a pre-set setting.
  • the invention also provides a closed loop derivative whereby an automatic control system is regulated by feedback to continually adjust back to the measure: increasing pressure increases temperature or rotation speed; decreasing pressure decreases temperature or rotation speed. If pressure is too low temperature or rotation speed falls; if pressure is too high it increases so as to meet the preset pressure level.
  • a handheld tool comprising a body configured to be grasped by a user, a retaining mechanism in the body for retaining a tool tip extending from the body, an activation mechanism for causing a tool head retained by the retaining mechanism to heat, rotate and/or vibrate.
  • the retaining mechanism may be configured to release the tool head and receive an alternative tool head.
  • heads can be interchangeable. This allows different heads to be used for different purposes. For example, if the tool is used to touch up 3D printed models, different heads may be used for different materials or for specific tasks.
  • the activation mechanism comprises a heat source for applying heat to the head.
  • the tool may comprise a closed feedback loop to maintain a temperature of the head at a chosen temperature.
  • the body may comprise a heat dissipation mechanism for ensuring that heat generated by the heat source is not conducted into a portion of the body grasped by the user. This avoids heat which may be uncomfortable for users being conducted into the handle, and enables the tool to be kept relatively short.
  • the heat dissipation mechanism may comprise a heat reflective bulkhead within the body, and/or vents to allow heat to escape from the body, and/or a fan to direct airflow away from a portion of the body grasped by the user.
  • the activation mechanism may comprise a motor for causing the head to rotate and/or a vibration mechanism for imparting vibration, optionally ultrasonic vibration, to the head.
  • the tool may comprise a control system for controlling the temperature, rotation speed and/or vibration frequency of the head.
  • the control system may be configured to enable a user to choose appropriate temperature, rotation speed and/or vibration frequency settings for the head in dependence on a specific task.
  • the control system may include pre-programmed settings for specific tasks, and /or may be programmable to enable settings to be entered.
  • the control system may include a communication device to allow instructions to be received by the tool wirelessly from a remote device, for example via Bluetooth® from an app executed by a mobile device.
  • the tool may include a pressure sensor for detecting pressure applied to a user interface on the body or to the head.
  • the control system may be configured to respond to haptic feedback from the pressure sensor to control the temperature, rotation speed and/or vibration frequency of the head.
  • a change in pressure applied by the user may cause the control system to increase the temperature, rotation speed and/or vibration frequency of the head beyond a pre-set setting, or to return to a pre-set setting.
  • the temperature and/or rotation speed of the head may be continually adjusted in response to the pressure.
  • a kit of parts comprising the tool described above and a plurality of heads configured to be received by the retaining mechanism.
  • the heads and control system may be configured so that the tool can be used for touching up a 3D printed model, wherein the heads are configured to remove, refine, polish and/or blend material on the model.
  • the heads and control system may be configured so that the tool can be used as a soldering iron, or as a heated wax tool.
  • an interchange system for enabling tool heads to be inserted into and removed from the tool described above.
  • the system comprises a tool head having a tip for carrying out a task and a body for insertion into the tool described above, the body having a recess or rebate therearound.
  • the system also comprises a tool head holder comprising jaws pivotable between an open position and a closed position and configured to allow the tool tip to be inserted therebetween in the open configuration.
  • the jaws comprise a profile configured to close around the recess or rebate in the closed configuration so as to retain the tool head and pull it from the tool. This enables the tool head to be pulled from the tool and stored even when hot.
  • a tool for touching up a 3D printed model comprising a head configured to remove, refine, polish and/or blend material on the model.
  • Figure 1 shows a handheld device with interchangeable heated heads
  • Figure 2 shows a handheld device with interchangeable rotating heads
  • Figure 3 shows a handheld device with interchangeable ultrasonic vibrating heads
  • Figures 4A and 4B show an interchangeable head attachment fixed to a 3D printer's printer head mechanism
  • FIGS 5A and 5B illustrate heat dissipation mechanisms
  • Figures 6A and 6B illustrate a system for exchanging tool heads.
  • Figure 1 is an illustration of an exemplary handheld tool comprising a body 100 for grasping by a user and removable head 101 , and a control system offering a closed loop feedback system to monitor and control temperature of the tool's head 101 .
  • the heads are interchangeable.
  • the tool may be used as a heated 3D print finishing tool, and the following discussion is mainly concerned with this example, but it will be appreciated that other uses for the tool may also be envisaged, for example as a soldering iron or a heated wax tool, such as those used by jewellers and dental technicians.
  • the device uses the temperature properties of 3D printing materials to calculate the optimal melting and blending temperatures for the heated head.
  • the tool 100 can respond to the pressure applied by the user to either heat-up or cool-down the temperature of the interchangeable head and therefore the level of heat at the operating end.
  • the tool may have temperature pre-sets programmed preferably to current favourable 3D printing materials with assistance of a look-up chart that is referenced by either a visual system or computer programme.
  • Figure 2 is an illustration of an exemplary handheld rotating 3D print finishing tool having a body 200 and interchangeable abrasion and polishing heads 201 , and a control system offering a closed loop feedback system to monitor and control speed of the tool's head 201. Further, through additional haptic feedback the tool 200 can respond to the pressure applied by the user to either speed-up or slow-down the rotation of the interchangeable head and therefore the level of positive or negative friction at the operating end.
  • the tool may have speed pre-sets programmed preferably to current favourable 3D printing materials with assistance of a look-up chart that is referenced by either a visual system or computer programme.
  • Figure 3 is an illustration of an exemplary handheld vibrating 3D print finishing tool having a body 300 with interchangeable abrasion and polishing heads 301 , and a control system offering a closed loop feedback system to monitor and control mechanical or ultrasonic vibration of the tool's head 301 . Further, through additional haptic feedback the tool can respond to the pressure applied by the user to either speed-up or slow-down the ultrasonic vibration of the interchangeable head and therefore the level of positive or negative vibration at the operating end.
  • the tool may have ultrasonic pre-sets programmed preferably to current favourable 3D printing materials with assistance of a look-up chart that is referenced by either a visual system or computer programme.
  • the interchangeable heads and pre-sets from the look-up chart or computer programme may be adjustable as new 3D printing materials become available to the market.
  • the haptic feedback may take a number of forms.
  • the touch and pressure applied by the user either may be detected either through the pressure applied to the head, or to the pressure applied to a user interface on the body of the tool.
  • the change in pressure may provide information to the control system to cause a parameter such as temperature or rotational speed or vibration frequency to increase beyond a pre-set setting, or to return to a pre-set setting.
  • An alternative possibility may be for an automatic control system to be regulated by feedback to continually adjust the parameter: increasing pressure increases the parameter. If pressure is too low the parameter is reduced: if pressure is too high it increases so as to meet the pre-set pressure level.
  • Such tools may be entirely handheld devices (for example devices rechargeable by insertion into a cradle or by plugging in to an electrical source) but another alternative is to locate most of the electronics in a control unit, and include a tool in the form of a terminal connected to the control unit by a cable. It will also be appreciated that a rechargeable terminal could be both recharged and reprogrammed from a remote control unit, whether via a cable or wirelessly. The user interface show in the Figures could then be located on the control unit rather than on the tool held in the hand.
  • Figure 4A illustrates an interchangeable head attachment 400 which can be fixed to an existing 3D printer's printer head mounting mechanism.
  • Figure 4B shows the head attachment 400 fixed to an exemplary printer head mounting mechanism 402.
  • the head attachment 400 has an interchangeable head 401 which may use heat, rotation or vibration in the same way as the heads 101 , 201 , 301 described with reference to the tools of Figures 1 to 3.
  • the head attachment may utilize software running on top of the operating system of the 3D printer to plot the 3 dimensional XYZ coordinates of the 3D computer file which has previously been 3D printed by the printer.
  • the attachment 400 traces the external shape of the 3D printed model provided by the 3D CAD file used for printing.
  • a small motor 403 allows the head to turn to make cuts and polish.
  • Interchangeable heads offer different heads for different tasks; for example but not limited to, polishing, cutting, and sanding.
  • the cutting head removes all excess material created by the 3D printer. Variations of this device may be attached to existing printer head mounting mechanisms of popular 3D printers.
  • Figure 4B illustrates dual motors to create a 5 axis system; therefore, allowing the attachment to perform undercutting.
  • the finishing system utilised by the interchangeable heads may be based on heat application, rotated abrasion, rotated polishing, or ultrasonic techniques.
  • a heat dissipation device as shown in Figure 5A may be provided. This may include a heat reflective bulkhead 501 and/or vents 502 in the body to allow heat to escape. A fan 503 may also be added to direct airflow more actively, as shown in Figure 5B.
  • FIG. 6A illustrates a set of heads 600 configured for use with a head removal and storage tool 601 (shown in Figure 6B).
  • Each head has a tip 602 for carrying out a task, and a body 603 for insertion into a body 100,200,300 of a tool such as that shown in Figures 1 -3.
  • a recess or groove 604 is provided around the body at a point which will extend externally of the body of the tool.
  • the head removal and storage tool 601 is formed by two jaws 605, 606 which are pivotable about an axis 607 so as to a move between open and closed configurations.
  • a spring 608 biases the jaws towards the closed configuration.
  • the jaws may be opened by squeezing handles 609, 610 at a proximal end of the jaws.
  • a distal and of each jaw terminates in a profile 61 1 which matches the recess 604 in the body of the head 600.
  • the jaws can be opened, by hand, passed over the tip 602 of the head 600, and closed so that the profile 61 1 mates with the recess 604. The head is then held securely in the jaws and can be pulled free of the body of the tool even when hot, and also stored safely.
  • a detent or other rebate or shoulder may alternatively be provided.
  • the control system for the handheld tools of Figures 1 , 2 or 3 provides for accurate temperature heating, rotating speed, and ultrasonic vibrating speed.
  • the control system can generate fixed outputs or haptic feedback variations through pressure sensitivity technology, incorporating haptic feedback.
  • haptic feedback the device can respond to the pressure applied by the user to control the temperature, rotating speed, or ultrasonic vibrating speed.
  • the tool may have programmed pre-sets to current favourable 3D printing materials with assistance of a look-up chart that is referenced by either a visual system or computer program. This process allows for the head to be maintained at a constant temperature or speed irrespective of the material or tip design used while cleaning-up a 3D print. This combination allows the user to optimize the tool for a variety of tasks and personal preferences when it comes to cleaning-up 3D prints.
  • the pre-sets from the look-up chart or computer programme may be adjustable as new 3D printing materials become available to the market.
  • the control system may also be configured for remote operation, for example via an app in a smartphone. Instructions may be sent wirelessly to the tool, for example via Bluetooth®.
  • interchangeable heads provides significant flexibility, enabling accurate operations including but not limited to removal, refinement, polishing, fixing and blending unwanted material from 3D prints. Further, each head may be illuminated by an LED working light (not shown in the figures).
  • the interchangeable heads may be adjustable as new 3D printing materials become available to the market. Different heads may be used for different tasks (e.g. removal of large or small blemishes, polishing etc.) or for use with different materials.
  • the ergonomic handheld design of the tool combines comfort and precision, allowing users to hold the tool in different hand positions for finishing 3D printed models.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

L'invention concerne un outil à main chauffé. Le système comprend un dispositif à main pourvu de têtes interchangeables aptes à assurer l'application de chaleur, l'abrasion par rotation, le polissage par rotation ou des techniques à ultrasons, éventuellement en association avec un système de commande haptique. L'outil peut être utilisé pour enlever une matière indésirable de modèles imprimés en 3D, ou comme fer à souder ou outil pour cire chauffée.
PCT/GB2016/050351 2015-02-13 2016-02-12 Outil à main Ceased WO2016128770A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1502486.2 2015-02-13
GB1502486.2A GB2535981A (en) 2015-02-13 2015-02-13 Finishing system for 3D prints

Publications (1)

Publication Number Publication Date
WO2016128770A1 true WO2016128770A1 (fr) 2016-08-18

Family

ID=52781610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2016/050351 Ceased WO2016128770A1 (fr) 2015-02-13 2016-02-12 Outil à main

Country Status (2)

Country Link
GB (1) GB2535981A (fr)
WO (1) WO2016128770A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3871835A1 (fr) * 2020-02-26 2021-09-01 Shanghai Dong-Jing Automatic system Co., Ltd. Procédé et équipement pour la réparation des rayures de surface

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962681A (en) * 1988-11-09 1990-10-16 Yang Tai Her Modular manual electric appliance
US20050121495A1 (en) * 2003-12-09 2005-06-09 Tetuo Yokoyama Temperature control system for solder handling devices and method for temperature control for those devices
US20050200087A1 (en) * 2004-03-15 2005-09-15 Vasudeva Kailash C. Rotary tool with quick connect means and attachments thereto
US20080230246A1 (en) * 2007-03-23 2008-09-25 Donte Dollar-Wright Rotatable head vibrating multifunctional device
WO2013116303A1 (fr) * 2012-01-30 2013-08-08 Black & Decker Inc. Outil électrique
US20130247321A1 (en) * 2012-03-06 2013-09-26 Gary Steven Sichau Pressure sensing toothbrush
US20140374949A1 (en) * 2013-06-25 2014-12-25 Cal-Comp Precision (Singapore) Limited Three-dimensional printing apparatus and pringing method thereof

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US2211216A (en) * 1938-02-11 1940-08-13 Oster John Mfg Co Small power driven tool
DE2913943A1 (de) * 1979-04-06 1980-10-30 Peter Bausch Fa Motorisch angetriebenes bastler- arbeitsgeraet
CN2086183U (zh) * 1991-03-05 1991-10-09 王宏 多用锉磨机
US5781955A (en) * 1996-10-11 1998-07-21 Hendricks; Glen J. Motorized multiple brush assembly
GB2327054A (en) * 1997-07-08 1999-01-13 Black & Decker Inc Shaft locking
DE19808450A1 (de) * 1998-02-27 1999-09-02 Heddernheimer Metallwarenfab Vorrichtung zum Antreiben eines Werkzeuges
WO2015143007A2 (fr) * 2014-03-20 2015-09-24 Shapeways, Inc. Traitement de pièces imprimées en trois dimensions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962681A (en) * 1988-11-09 1990-10-16 Yang Tai Her Modular manual electric appliance
US20050121495A1 (en) * 2003-12-09 2005-06-09 Tetuo Yokoyama Temperature control system for solder handling devices and method for temperature control for those devices
US20050200087A1 (en) * 2004-03-15 2005-09-15 Vasudeva Kailash C. Rotary tool with quick connect means and attachments thereto
US20080230246A1 (en) * 2007-03-23 2008-09-25 Donte Dollar-Wright Rotatable head vibrating multifunctional device
WO2013116303A1 (fr) * 2012-01-30 2013-08-08 Black & Decker Inc. Outil électrique
US20130247321A1 (en) * 2012-03-06 2013-09-26 Gary Steven Sichau Pressure sensing toothbrush
US20140374949A1 (en) * 2013-06-25 2014-12-25 Cal-Comp Precision (Singapore) Limited Three-dimensional printing apparatus and pringing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3871835A1 (fr) * 2020-02-26 2021-09-01 Shanghai Dong-Jing Automatic system Co., Ltd. Procédé et équipement pour la réparation des rayures de surface

Also Published As

Publication number Publication date
GB2535981A (en) 2016-09-07
GB201502486D0 (en) 2015-04-01

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