[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN108526839B - Automatic assembling machine for power plug built-in parts - Google Patents

Automatic assembling machine for power plug built-in parts Download PDF

Info

Publication number
CN108526839B
CN108526839B CN201810366682.6A CN201810366682A CN108526839B CN 108526839 B CN108526839 B CN 108526839B CN 201810366682 A CN201810366682 A CN 201810366682A CN 108526839 B CN108526839 B CN 108526839B
Authority
CN
China
Prior art keywords
cylinder
base
plastic products
feeding
plug
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
CN201810366682.6A
Other languages
Chinese (zh)
Other versions
CN108526839A (en
Inventor
张安
王敏
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.)
Huizhou Pu'an Electronics Co ltd
Original Assignee
Huizhou Pu'an Electronics Co 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 Huizhou Pu'an Electronics Co ltd filed Critical Huizhou Pu'an Electronics Co ltd
Priority to CN201810366682.6A priority Critical patent/CN108526839B/en
Publication of CN108526839A publication Critical patent/CN108526839A/en
Application granted granted Critical
Publication of CN108526839B publication Critical patent/CN108526839B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001Article feeders for assembling machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention relates to an automatic assembling machine for power plug built-in parts, which comprises a frame, a base arranged on the frame, a vibration feeding mechanism arranged on the base and used for providing plastic products, a turntable mechanism used for placing the plastic products, a feeding manipulator used for conveying the plastic products from the vibration feeding mechanism to the turntable mechanism, an assembling mechanism used for assembling hardware terminals into the plastic products into plug products, a tray mechanism used for installing trays, and a discharging manipulator used for conveying the plug products to the tray mechanism. The invention is provided with the vibration feeding mechanism, the assembling mechanism and the turntable mechanism, can realize automatic feeding, and can drive the hardware terminals into plastic products to assemble plug products, thereby realizing automation of plug production, improving production efficiency and saving labor cost. On the other hand, the automatic production also ensures the assembly size of the plug product, improves the product quality and ensures the yield.

Description

Automatic assembling machine for power plug built-in parts
Technical Field
The invention relates to the technical field of plug processing, in particular to an automatic assembling machine for power plug built-in parts.
Background
A Connector (Connector) of a general electronic product and an electrical appliance plug (Pin) are called a plug. The electrical appliance becomes an indispensable part of life of people, and the performance of the plug as an essential part of the electrical appliance directly influences the service life of the electrical appliance, so that the production quality and process of the electrical appliance have strict requirements. In the traditional production process of the plug, the conductive metal head or the inserting piece is manually inserted into the slot of the plastic product, so that the production efficiency is very low, the labor intensity is high, the assembly size is unstable, safety potential hazards exist, and the requirement cannot be met in mass production. Although semi-automatic equipment can be matched with manpower to finish production, the production efficiency is still low and the production cost is high.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic power plug built-in assembly machine which can automatically assemble hardware terminals and plastic products into plug products.
The invention is realized by the following scheme:
the automatic assembling machine for the built-in power plug comprises a frame, a base, a vibration feeding mechanism, a rotary table mechanism, a feeding manipulator, an assembling mechanism and a tray mechanism, wherein the base is arranged on the frame, the vibration feeding mechanism is arranged on the base and used for providing plastic products, the rotary table mechanism is used for placing the plastic products, the feeding manipulator is used for conveying the plastic products from the vibration feeding mechanism to the rotary table mechanism, the assembling mechanism is used for assembling hardware terminals into the plastic products into plug products, the tray mechanism is used for installing a tray, and the discharging manipulator is further arranged on the base and used for conveying the plug products to the tray mechanism; the assembly mechanism comprises a support frame arranged on the base, a punching cylinder arranged on the support frame and used for cutting the hardware terminal from the material belt, a lifting cylinder arranged below the punching cylinder and used for lifting the hardware terminal, and a thimble used for driving the hardware terminal into a plastic product; the rotary table mechanism and the ejector pins are respectively positioned on two opposite sides of the supporting frame, the ejector pins are driven by the ejector pin cylinder arranged below the base to move towards the direction of the rotary table, and the base is also provided with a material belt conveying motor for conveying the material belt of the hardware terminal to the lower part of the punching cylinder.
Further, the turntable mechanism comprises a supporting seat, a hollow turntable arranged on the supporting seat, a plurality of jigs fixed on the hollow turntable and used for placing plastic products, and a motor arranged at the supporting seat and used for driving the hollow turntable to rotate; the hollow part at the center of the hollow turntable is provided with a support column, and the top end of the support column is also provided with a compacting cylinder for compacting plastic products.
Further, vibrations feed mechanism is including setting up the vibrations dish in the frame, is used for carrying the material way of plastic product, setting up the direct shock of material way below with vibrations dish connection to and the feeding cylinder that is used for with the plastic product jack-up that sets up on the base, the feeding cylinder is located the tip position department of material way.
Further, the vibration plate is fixed on the frame through the first base, the direct vibration is fixed on the base through the second base, and the feeding cylinder is fixed on the base through the third base.
Further, a first optical fiber sensor for sensing plastic products is arranged at the end part of the material channel, which is close to the feeding cylinder.
Further, the feeding manipulator comprises a feeding support arranged on the base, a first transverse moving cylinder arranged at the upper end of the feeding support, a first downward moving cylinder connected with the first transverse moving cylinder, a grabbing cylinder connected with the first grabbing cylinder, and a grabbing clamp connected with the grabbing cylinder and used for grabbing plastic products.
Further, the discharging manipulator comprises a discharging support, a second transverse moving cylinder arranged at the upper end of the discharging support, a second downward moving cylinder connected with the second transverse moving cylinder, and a vacuum chuck connected with the second downward moving cylinder and used for adsorbing plug products.
Further, the material tray mechanism comprises a material tray support arranged on the base, a material tray mounting piece rotatably connected to the material tray support, and a material discharging limit groove arranged below the material tray mounting piece; the discharging limiting groove is fixedly connected with the material tray support through a connecting piece.
Further, a second optical fiber sensor for sensing the position of the hardware terminal is arranged on the supporting frame.
Further, the material belt conveying motor is fixed on the base at one side of the supporting frame through the fixing frame.
Compared with the prior art, the invention has the following beneficial effects:
the invention is provided with the vibration feeding mechanism, the assembling mechanism and the turntable mechanism, can realize automatic feeding, and can drive the hardware terminals into plastic products to assemble plug products, thereby realizing automation of plug production, improving production efficiency and saving labor cost. On the other hand, the automatic production also ensures the assembly size of the plug product, improves the product quality and ensures the yield.
Drawings
Fig. 1 is a schematic structural diagram of an automatic power plug assembly machine according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a vibration feeding mechanism in this embodiment.
Fig. 4 is a schematic structural view of the turntable mechanism according to the present embodiment.
Fig. 5 is an exploded view of the feeding manipulator of the present embodiment.
Fig. 6 is an exploded view of the tray mechanism of the present embodiment.
Fig. 7 is an exploded view of the discharging manipulator of the present embodiment.
Detailed Description
In order to facilitate an understanding of the present invention by those skilled in the art, the present invention will be described in further detail with reference to specific examples and drawings.
Referring to fig. 1 to 7, the automatic power plug built-in assembly machine provided by the invention comprises a frame 1, a base 2 arranged on the frame, a vibration feeding mechanism 3 arranged on the base and used for providing plastic products, a turntable mechanism 4 used for placing the plastic products, a feeding manipulator 5 used for conveying the plastic products from the vibration feeding mechanism to the turntable mechanism, an assembly mechanism 6 used for driving hardware terminals into the plastic products to assemble plug products, a tray mechanism 7 used for installing a tray, and a discharging manipulator 8 used for conveying the plug products to the tray mechanism.
The assembly mechanism 6 comprises a supporting frame 61 arranged on the base 2, a punching cylinder 62 arranged on the supporting frame and used for cutting the hardware terminal from the material belt, a lifting cylinder 63 arranged below the punching cylinder and used for lifting the hardware terminal, and a thimble 64 used for driving the hardware terminal into a plastic product; the turntable mechanism 4 and the thimble 64 are respectively located at two opposite sides of the supporting frame, and in this embodiment, the thimble and the turntable mechanism are respectively located at front and rear sides of the supporting frame at an angle shown in the drawing. The thimble is specifically connected to one end of a connecting rod, the connecting rod is fixed on the base through a fixing piece, and the connecting rod is rotatably connected with the fixing piece to form a lever structure. The base 2 below is provided with thimble cylinder 65, and the other end of connecting rod is connected to its piston rod, and the connecting rod is driven by the thimble cylinder, can make the thimble move towards the direction of carousel, promotes out and inserts the five metals terminal in the plastic product. A tape transport motor 66 for transporting the tape of the metal terminals to the lower side of the die-cutting cylinder 62 is also provided on the base 2. The support 61 is provided with a second optical fiber sensor 67 for sensing the position of the hardware terminal. The tape conveying motor 66 is fixed to the base 2 on one side of the support frame 21 by a fixing frame 68. In order to avoid being blocked, the structure relation is clearly shown in fig. 1 and 2, and the thimble cylinder is arranged above the non-base.
The turntable mechanism 4 comprises a supporting seat 41, a hollow turntable 42 arranged on the supporting seat, a plurality of jigs 43 fixed on the hollow turntable and used for placing plastic products, and a motor 44 arranged at the supporting seat and used for driving the hollow turntable to rotate. A supporting column 45 is arranged at the hollow part of the center of the hollow turntable 41, and a compacting cylinder 46 for compacting plastic products is also arranged at the top end of the supporting column 45. In the embodiment, four jigs are arranged and evenly distributed around the circle center of the hollow turntable. In this embodiment, the support column is rotatable, that is, the pressing cylinder is rotatable along with the hollow turntable.
The vibration feeding mechanism 3 comprises a vibration disc 31 arranged on the frame 1, a material channel 32 connected with the vibration disc and used for conveying plastic products, a direct vibration 33 arranged below the material channel, and a feeding cylinder 34 arranged on the base 2 and used for jacking the plastic products, wherein the feeding cylinder is positioned at the end part of the material channel. Wherein, the vibration plate 31 is fixed on the frame 1 through the first base 35, the direct vibration 33 is fixed on the base 2 through the second base 36, and the feeding cylinder is fixed on the base through the third base 38. The end of the material channel 32 near the feeding cylinder 34 is provided with a first optical fiber sensor 37 for sensing the plastic product. The vibration disc conveys the plastic products to the material channel in a direction, the material channel conveys the products to the first optical fiber sensor under the direct vibration effect, and after the products are sensed to be in place, the lifting cylinder ejects the products.
The feeding manipulator 5 comprises a feeding bracket 51 arranged on the base, a first transverse moving cylinder 52 arranged at the upper end of the feeding bracket, a first downward moving cylinder 53 connected with the first transverse moving cylinder, a grabbing cylinder 54 connected with the first downward moving cylinder, and a grabbing clamp 55 connected with the grabbing cylinder and used for grabbing plastic products.
The tray mechanism 7 includes a tray support 71 provided on the base, a tray mount 72 rotatably connected to the tray support, and a discharge limit groove 73 provided below the tray mount. The discharge limit groove is fixedly connected with the tray support through a connecting piece 74. The tray mechanism can be used for clamping the tray for containing the plug products during specific implementation.
The discharging manipulator 8 comprises a discharging bracket 81, a second traversing cylinder 82 arranged at the upper end of the discharging bracket, a second downshifting cylinder 83 connected with the second traversing cylinder, and a vacuum chuck 84 connected with the second downshifting cylinder and used for adsorbing plug products.
During specific work, the vibration feed mechanism sends out the plastic product through the material way, and the feeding cylinder jack-up the plastic product, and the material loading manipulator presss from both sides the tool department that removes carousel mechanism with the plastic product afterwards. After the plastic product is placed at the jig, the pressing cylinder presses down to press the plastic product. The hollow turret is then rotated 90 degrees counter-clockwise in this embodiment to the assembly. The material belt conveying motor conveys the material belt to a position corresponding to the plastic product through the first optical fiber sensor, and the punching cylinder punches downwards to separate the hardware terminal from the material belt. The lifting air cylinder lifts the plastic product to a parallel position, and the thimble air cylinder drives the hardware terminal into the plastic product to complete assembly. And then the hollow rotary disc rotates anticlockwise by 90 degrees, the discharging manipulator adsorbs the assembled plug product to the tray mechanism through the vacuum chuck and puts the plug product into the tray to complete a processing procedure.
The invention is provided with the vibration feeding mechanism, the assembling mechanism and the turntable mechanism, can realize automatic feeding, and can drive the hardware terminals into plastic products to assemble plug products, thereby realizing automation of plug production, improving production efficiency and saving labor cost. On the other hand, the automatic production also ensures the assembly size of the plug product, improves the product quality and ensures the yield.
While the invention has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the scope of the appended claims.

Claims (10)

1. The automatic assembling machine for the built-in power plug is characterized by comprising a frame (1), a base (2) arranged on the frame, a vibration feeding mechanism (3) arranged on the base and used for providing plastic products, a turntable mechanism (4) used for placing the plastic products, a feeding manipulator (5) used for conveying the plastic products from the vibration feeding mechanism to the turntable mechanism, an assembling mechanism (6) used for assembling the plastic products into plug products by driving hardware terminals into the plastic products, a tray mechanism (7) used for installing a tray, and a discharging manipulator (8) used for conveying the plug products to the tray mechanism; the assembly mechanism (6) comprises a supporting frame (61) arranged on the base (2), a punching cylinder (62) arranged on the supporting frame and used for cutting the hardware terminal from the material belt, an ascending cylinder (63) arranged below the punching cylinder and used for lifting the hardware terminal, and a thimble (64) used for driving the hardware terminal into a plastic product; the rotary table mechanism (4) and the ejector pins (64) are respectively positioned on two opposite sides of the supporting frame, the ejector pins are driven by an ejector pin cylinder (65) arranged below the base (2) to move towards the direction of the rotary table, and a material belt conveying motor (66) for conveying a material belt of a hardware terminal to the lower side of the punching cylinder (62) is further arranged on the base (2).
2. The automatic power plug built-in assembly machine according to claim 1, wherein the turntable mechanism (4) comprises a supporting seat (41), a hollow turntable (42) arranged on the supporting seat, a plurality of jigs (43) fixed on the hollow turntable and used for placing plastic products, and a motor (44) arranged at the supporting seat and used for driving the hollow turntable to rotate; a supporting column (45) is arranged at the hollow part of the center of the hollow rotary table (42), and a compressing cylinder (46) for compressing plastic products is further arranged at the top end of the supporting column (45).
3. The automatic power plug built-in assembly machine according to claim 1, wherein the vibration feeding mechanism (3) comprises a vibration disc (31) arranged on the frame (1), a material channel (32) connected with the vibration disc and used for conveying plastic products, a direct vibration (33) arranged below the material channel, and a feeding cylinder (34) arranged on the base (2) and used for jacking up the plastic products, wherein the feeding cylinder is positioned at the end position of the material channel.
4. A power plug-in automatic assembling machine according to claim 3, characterized in that the vibration plate (31) is fixed on the frame (1) through a first base (35), the direct vibration (33) is fixed on the base (2) through a second base (36), and the feeding cylinder is fixed on the base through a third base (38).
5. Automatic power plug insert assembling machine according to claim 4, characterized in that the end of the material channel (32) close to the feeding cylinder (34) is provided with a first optical fiber sensor (37) for sensing plastic products.
6. The automatic power plug built-in assembly machine according to claim 1, wherein the feeding manipulator (5) comprises a feeding bracket (51) arranged on the base, a first traversing cylinder (52) arranged at the upper end of the feeding bracket, a first downshifting cylinder (53) connected with the first traversing cylinder, a grabbing cylinder (54) connected with the first downshifting cylinder, and a grabbing clamp (55) connected with the grabbing cylinder and used for grabbing plastic products.
7. The automatic power plug-in assembling machine according to claim 1, wherein the discharging manipulator (8) comprises a discharging bracket (81), a second traversing cylinder (82) arranged at the upper end of the discharging bracket, a second downward moving cylinder (83) connected with the second traversing cylinder, and a vacuum chuck (84) connected with the second downward moving cylinder for sucking plug products.
8. The automatic power plug-in assembly machine according to claim 1, wherein the tray mechanism (7) comprises a tray support (71) provided on the base, a tray mount (72) rotatably connected to the tray support, and a discharge limit groove (73) provided below the tray mount; the discharging limiting groove is fixedly connected with the material tray support through a connecting piece (74).
9. The automatic power plug insert assembling machine according to claim 1, wherein the supporting frame (61) is provided with a second optical fiber sensor (67) for sensing the position of the hardware terminal.
10. The automatic power plug-in assembly machine according to claim 9, wherein the tape conveying motor (66) is fixed to the base (2) on one side of the support frame (61) by a fixing frame (68).
CN201810366682.6A 2018-04-23 2018-04-23 Automatic assembling machine for power plug built-in parts Active CN108526839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810366682.6A CN108526839B (en) 2018-04-23 2018-04-23 Automatic assembling machine for power plug built-in parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810366682.6A CN108526839B (en) 2018-04-23 2018-04-23 Automatic assembling machine for power plug built-in parts

Publications (2)

Publication Number Publication Date
CN108526839A CN108526839A (en) 2018-09-14
CN108526839B true CN108526839B (en) 2024-02-06

Family

ID=63479178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810366682.6A Active CN108526839B (en) 2018-04-23 2018-04-23 Automatic assembling machine for power plug built-in parts

Country Status (1)

Country Link
CN (1) CN108526839B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109366167B (en) * 2018-11-27 2020-08-04 东莞立新塑胶有限公司 Hardware plastic part assembling machine
CN109578399B (en) * 2018-11-27 2021-02-09 东莞立新塑胶有限公司 Mixed kludge of cotton five metals of bubble
CN110181248B (en) * 2019-07-03 2023-03-14 厦门科鑫电子有限公司 Full-automatic precision glue core intelligent plug terminal boxing machine
CN114512876B (en) * 2022-02-25 2023-11-14 东莞好景塑胶制品有限公司 Two slip table inserted sheet equipment of charging terminal seat hardware sheet
CN115321111B (en) * 2022-08-15 2023-05-02 金舜驰(天津)科技有限公司 Automatic stator mounting terminal feeding and discharging integrated equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1667891A (en) * 2004-03-11 2005-09-14 新明和工业株式会社 Waterproof-seal inserting apparatus
EP2330063A1 (en) * 2009-12-02 2011-06-08 STS International S.r.l Helical rotating member for grouping or destacking containers
CN104860064A (en) * 2015-05-14 2015-08-26 东莞市万将机电设备有限公司 Full-automatic intelligent assembly line based on flexible concept
CN105290779A (en) * 2015-10-23 2016-02-03 舟山市智海技术开发有限公司 Mobile phone machining detection device
CN206764285U (en) * 2017-04-07 2017-12-19 东莞市晴达电子有限公司 A kind of JACK plugs automatic assembling
CN107877121A (en) * 2017-12-15 2018-04-06 昆山博富仕自动化设备有限公司 Dissipate PIN contact pin apparatus
CN208051309U (en) * 2018-04-23 2018-11-06 惠州市普安电子有限公司 A kind of attaching plug built-in part automatic assembling

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1667891A (en) * 2004-03-11 2005-09-14 新明和工业株式会社 Waterproof-seal inserting apparatus
EP2330063A1 (en) * 2009-12-02 2011-06-08 STS International S.r.l Helical rotating member for grouping or destacking containers
CN104860064A (en) * 2015-05-14 2015-08-26 东莞市万将机电设备有限公司 Full-automatic intelligent assembly line based on flexible concept
CN105290779A (en) * 2015-10-23 2016-02-03 舟山市智海技术开发有限公司 Mobile phone machining detection device
CN206764285U (en) * 2017-04-07 2017-12-19 东莞市晴达电子有限公司 A kind of JACK plugs automatic assembling
CN107877121A (en) * 2017-12-15 2018-04-06 昆山博富仕自动化设备有限公司 Dissipate PIN contact pin apparatus
CN208051309U (en) * 2018-04-23 2018-11-06 惠州市普安电子有限公司 A kind of attaching plug built-in part automatic assembling

Also Published As

Publication number Publication date
CN108526839A (en) 2018-09-14

Similar Documents

Publication Publication Date Title
CN108526839B (en) Automatic assembling machine for power plug built-in parts
CN109950774B (en) DC socket processing equipment
CN111250984B (en) Multi-mechanism terminal assembling machine
CN111452481A (en) Aluminum substrate foil plate pressing device
CN112003431B (en) Stator assembly module, equipment and assembly method
CN111300034B (en) Wire connector and automatic production equipment and method thereof
CN214922162U (en) Fan blade assembling machine
CN210615437U (en) Electric wire circuit board welding device
TWI687289B (en) Electronic component crimping device and test classification equipment containing the same
CN110125680B (en) Automatic assembly machine for single-state switch pins and assembly method thereof
CN218691088U (en) Rotating angle pressing assembly machine for dispensing upper cover of inductor
CN213969834U (en) Bearing assembling equipment for heat radiation fan
CN217800132U (en) Disc type toggle switch assembling equipment
CN116728078A (en) Full-automatic assembly machine for double-filter switcher finished product
CN217344344U (en) Copper sheet equipment is adorned to auto-parts gear
CN215401548U (en) Elastic sheet riveting mechanism
CN213036923U (en) Unloader on semi-manufactured goods work piece
CN211219544U (en) Automatic assembling equipment for brake disc
CN108971948B (en) Material plate glue pressing nail equipment
CN209912805U (en) Large-power magnetic latching relay reed combination riveting device
CN215787312U (en) Flexible lamp panel welding machine capable of automatically feeding and welding terminals
CN115664133A (en) Rotor core shaft entering machine
CN113060531A (en) Elastic sheet riveting mechanism
CN215880697U (en) Assembling device for assembling connector positioning piece
CN217577307U (en) A get and put mechanism that is used for U piece material loading under cell-phone band

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant