CN109571144B

CN109571144B - CNC transfer machine

Info

Publication number: CN109571144B
Application number: CN201811637042.0A
Authority: CN
Inventors: 颜学政; 雷冬生
Original assignee: Guangdong Tianji Industrial Intelligent System Co Ltd
Current assignee: Guangdong Tianji Intelligent System Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-10-23
Anticipated expiration: 2038-12-29
Also published as: CN109571144A

Abstract

The utility model provides a CNC transfer machine, CNC transfer machine includes master control case, automatically-controlled door, ground rail, sets up the feeding dolly on the ground rail, sets up secondary positioner, manipulator on the feeding dolly, and sets up the material clearance palm of getting on the manipulator, and the automatically-controlled door sets up on the CNC side, is provided with anchor clamps in the CNC. The automatic CNC line is arranged on the side edge of the automatic door, when the feeding trolley slides to a CNC accurate position, the automatic door is automatically opened, a machined product on the clamp is taken out of the feeding trolley, the clamp is cleaned, after the cleaning is finished, the product positioned by the secondary positioning device is installed on the clamp by the material taking and cleaning palm, after the installation is finished, the material taking and cleaning palm exits the automatic door, the automatic door is closed, the CNC starts to work, intelligent product changing and scrap cleaning are achieved through the automatic door, the mechanical arm and the material taking and cleaning palm arranged on the mechanical arm, the labor cost is saved, the processing reject ratio is reduced, and the production efficiency is improved.

Description

CNC transfer machine

Technical Field

The invention relates to the field of automatic processing equipment, in particular to a CNC automatic line.

Background

In the production process of processing the shell of the mobile phone by the existing CNC (computer Numerical Control Machine tool), products of each processed process of the CNC need to manually open a CNC front safety door, the processed products are taken down, and the unprocessed products are installed on a clamp in the CNC after the clamp is cleaned. The clamp is cleaned manually, and the product is assembled and disassembled sometimes with aluminum chips which are not cleaned, so that the surface of the product is crushed; the problems of inaccurate product installation position, scratching in the installation process and the like can also occur, so that the product reject ratio cannot be reduced, and the labor cost is increased day by day.

Disclosure of Invention

In order to solve the problems existing in the prior art, the CNC automatic line uses the mechanical arm to replace manual operation, saves labor cost, reduces the processing reject ratio and improves production efficiency.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

a CNC automation line comprising:

a CNC for machining a product, the CNC including a fixture;

the automatic door is arranged on one side of the CNC;

the ground rail is arranged on one side, far away from the CNC, of the automatic door;

the feeding trolley is arranged on the ground rail and used for conveying a product to be processed to the CNC under the guidance of the ground rail;

the secondary positioning device is arranged on the feeding trolley and used for positioning a product to be processed;

get material cleaning device, correspond the CNC setting, get material cleaning device includes the manipulator and connects the material of getting of manipulator clearance palm, get material clearance palm be used for under the drive of manipulator take away the processed product on CNC's anchor clamps to take away the clearance anchor clamps after placing at the processed product, after anchor clamps are cleared up totally, get from secondary positioner again and wait to process the product place in CNC's anchor clamps are last.

Foretell CNC transfer machine sets up in CNC's side, be provided with the automatically-controlled door at the CNC side, the feed dolly slides on the ground rail, when sliding to the accurate position of CNC, the automatically-controlled door is automatic to be opened, get on the feed dolly and expect that the material clearance palm takes out the processed product on the anchor clamps, and clearance anchor clamps, the back of finishing in the clearance, get on the material clearance palm install the anchor clamps with the good product of secondary positioner location on, the back of finishing in the installation, it withdraws from the automatically-controlled door to get the material clearance palm, the automatically-controlled door is closed, CNC begins to work, through the automatically-controlled door, the manipulator, and set up the material clearance palm of getting on the manipulator, realize intelligent dress product that changes, the clearance sweeps, the human cost is saved, reduce the processing.

In one embodiment, the secondary positioning device comprises a positioning plate and two positioning strips, the positioning plate is provided with a product placing surface and a plate back surface which are oppositely arranged, the positioning strips are arranged on the product placing surface, the two positioning strips surround a product placing area, the two positioning strips are vertically arranged, and the product placing area is positioned above the two positioning strips; the product placing surface is obliquely arranged towards the direction from the product placing surface to the back surface of the plate, and the included angle between the product placing surface and the horizontal direction is 60-80 degrees.

In one embodiment, the clamp comprises a cover plate for covering the product and a pressing plate mechanism for driving the cover plate to press the product; and the cover plate is provided with a product processing hole.

In one embodiment, the material taking and cleaning palm comprises a cover plate taking device, a product taking device, an air blowing pipe and a glue taking frame device, wherein the cover plate taking device and the product taking device are located in different planes.

In one embodiment, the product taking device comprises a processed product taking device and an unprocessed product taking device which are positioned on different planes, and the processed product taking device, the unprocessed product taking device and the glue taking frame device are all vacuum chucks.

In one embodiment, the cover plate taking device comprises a plate taking mechanism and a top plate mechanism, wherein the plate taking mechanism is an electromagnet, and the top plate mechanism is a top plate cylinder.

In one embodiment, a rack is arranged on the ground rail, the feeding trolley is provided with a transmission mechanism, the transmission mechanism comprises a servo motor, a speed reduction assembly and a gear which are sequentially connected, and the gear is meshed with the rack of the ground rail.

In one embodiment, the feed trolley further comprises a raw product stacking device and a processed product stacking device.

In one embodiment, the feeding trolley is in sliding connection with the ground rail.

In one embodiment, the automatic door comprises a cylinder, a slide rail and a door main body, wherein the door main body is in slide connection with the slide rail, and the cylinder is connected with the door main body.

Drawings

FIG. 1 is a schematic structural diagram of a CNC automation line according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the structure of the clamp;

FIG. 4 is a schematic structural view of a platen mechanism;

FIG. 5 is a schematic structural view of an automatic door;

FIG. 6 is a schematic structural diagram of a ground rail;

FIG. 7 is a perspective view of the feed trolley;

FIG. 8 is a bottom view of the feed trolley;

FIG. 9 is a schematic structural diagram of a secondary positioning device;

fig. 10 is a schematic view of the mechanism for reclaiming and cleaning the palm.

In the figure:

10. a master control electronic box;

20、CNC；

21. a clamp; 22. a cover plate; 221. processing holes on the product; 222. pressing holes of the pressing plate; 23. a platen mechanism; 231. a rotary pressing head;

30. an automatic door; 31. a rodless cylinder; 32. a slide rail; 33. a door main body;

40. a ground rail; 41. a large plate; 42. a rack; 43. a slide rail; 44. a pillow plate;

50. a feeding trolley; 51. a green product stacking device; 52. a processed product stacking device; 53. a windrow lifting mechanism; 54. a servo motor; 55. a gear; 56. a slider; 57. a positioning mechanism;

60. a secondary positioning device; 61. positioning a plate; 62. a product placement surface; 63. a back side of the board; 64. a positioning bar;

70. a material taking and cleaning device; 71. a manipulator; 72. taking materials and cleaning the palm; 73. a cover plate taking device; 731. a plate taking mechanism; 732. a roof plate mechanism; 74. taking a processed product; 75. an air blowing pipe; 76. taking a raw product device; 77. positioning pins; 78. a displacement prevention pressing mechanism;

80. and (4) a protective net.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length," "width," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 10, a CNC automation line according to a preferred embodiment of the present invention includes a main control electrical box 10, a CNC20 for processing products, an automatic door 30 disposed on one side of the CNC20, a ground rail 40 disposed on one side of the automatic door 30 away from the CNC20, a feeding cart 50 disposed on the ground rail 40, a secondary positioning device 60 disposed on the feeding cart 50, and a material taking and cleaning device 70 disposed corresponding to the CNC 20. The specific introduction of each part is as follows:

in this embodiment, the number of the CNC20 is several, and several CNC20 are arranged in two columns. Two columns of CNC20 have channels formed between them. Protective nets 80 are arranged on two sides of the passage, and each CNC20 comprises a clamp 21 for fixing products. The fixture 21 is a product clamp jig designed for positioning a product when the CNC20 processes the product.

As shown in fig. 3, the fixture 21 includes a cover plate 22 disposed on the product and a pressing plate mechanism 23 for driving the cover plate 22 to press the product, the cover plate 22 is provided with a product processing hole 221 and a pressing plate pressing hole 222, and the product processing hole 221 is used for a cutter for processing the product to pass through so that the cutter can process the product. In this embodiment, as shown in fig. 4, the pressing plate mechanism 23 is a pressing cylinder 23, a pressing head 231 is disposed on the pressing cylinder 23, preferably, the pressing head 231 is hook-shaped, the existing fixture 21 uses a cylinder to clamp the product, but when the cylinder directly applies force to the product, the product will be pressed and deformed or crushed, so that the present embodiment uses a cover plate 22 to press the product, and the pressing cylinder 23 is disposed with the pressing head 231, so that the pressing head 231 penetrates through the pressing plate pressing hole 222 when the pressing cylinder 23 extends out, and the pressing head 231 is rotated to press the cover plate 22 when the pressing cylinder retracts, so that the force of the pressing head 231 is uniformly applied to the product, and the product is prevented from being pressed and deformed. Therefore, the product is replaced by removing the cover plate 22 first, and the cover plate 22 is required to be covered again after the product is replaced.

The quantity of automatic door 30 equals with the quantity of CNC20, and automatic door 30 and CNC20 one-to-one setting, and automatic door 30 is used for the gate of switching CNC20, and when the product processing, the gate of CNC20 is closed to automatic door 30, and when the product processing finished and need take out, automatic door 30 opened.

In the present embodiment, as shown in fig. 5, the automatic door 30 includes a rodless cylinder 31, a slide rail 32, and a door body 33, the slide rail 32 is provided on the CNC20, the door body 33 is slidably provided on the slide rail 32, and the rodless cylinder 31 is connected to the door body 33 for driving the door body 33 to open or close the doorway of the CNC 20.

In this embodiment, the rodless cylinders 31, the slide rails 32 and the door bodies 33 are all provided with two, the two door bodies 33 are arranged in parallel, when the CNC2010 finishes machining the product, the two rodless cylinders 31 respectively drive the two door bodies 33 to move left and right, the automatic door 30 is opened, and when the manipulator 71 extends out of the CNC20, the two rodless cylinders 31 respectively drive the two door bodies 33 to do closing movement before the CNC20 starts machining.

In this embodiment, the ground rail 40 is used to guide the movement of the feed trolley 50 so that the feed trolley 50 can be accurately moved to the position of the CNC 20. The ground rail 40 is arranged on a channel formed between the two rows of CNC20, so that one feeding trolley can convey products to be processed for the two rows of CNC20, and the efficiency of conveying the products to be processed by the feeding trolley is improved.

As shown in fig. 6, the ground rail 40 includes a large spliced plate 41, a rack 42, a sliding rail 43, and a pillow plate 44. The pillow plate 44 is fixed by an expansion screw, the height of the large plate 41 can be adjusted by the expansion screw, an aluminum strip is padded below the rack 42 to prevent foreign matters from being clamped, and the rack 42 and the sliding rail 43 are protected by metal plates.

In this embodiment, the ground rail 40 is provided with a rack 42 for driving and connecting the feeding trolley 50, and the extending direction of the rack 42 is the same as the extending direction of the ground rail 40.

Preferably, the ground rail 40 is also slidably connected to the feed trolley 50, so that on the one hand the feed trolley 50 is not easily detached from the ground rail 40, and on the other hand the feed trolley 50 is not easily vibrated when it moves again. Specifically, the ground rail 40 is provided with a slide rail 43, the feeding trolley is provided with a slide block 56 corresponding to the slide rail 43, and the slide block 56 is slidably connected with the slide rail 43.

In this embodiment, as shown in fig. 7, the feeding cart 50 includes a stacking device 51 for unprocessed products and a stacking device 52 for processed products, and the stacking device 51 for unprocessed products and the stacking device 52 for processed products are preferably rubber frames with a stacking lifting mechanism 53, and each rubber frame is provided with a plurality of rubber baskets for placing products. The stacking lifting mechanism 53 is used for lifting the stacked rubber frame, so that the stacking space is saved. In the present embodiment, the processed product stacking means 52 is located above the unprocessed product stacking means 51. In operation, the manipulator 71 takes the unprocessed products from the uppermost rubber frame of the unprocessed product stacking device 51, performs secondary positioning, and after the processed products are processed, places the processed products on the rubber frame of the processed product stacking device 52, when the products on the uppermost rubber frame of the unprocessed product stacking device 51 are completely taken out to form an empty rubber frame, the manipulator 71 places the empty rubber frame on the processed product stacking device 52 and stacks the empty rubber frame on the last rubber frame filled with the processed products, and the above operation is repeated, and when the rubber frame on the unprocessed product stacking device 51 is half taken away by the manipulator 71, the stacking lifting mechanism 53 drives the rubber frame filled with the remaining unprocessed products to rise to a certain height, so that the manipulator 71 takes the products.

In this embodiment, as shown in fig. 7 and 8, the feeding cart 50 is further provided with a transmission mechanism, the transmission mechanism includes a servo motor 54, a speed reducer and a gear 55, which are connected in sequence, and the gear 55 is connected with the rack 42 in a matching manner. This arrangement allows the feed trolley 50 to slide along the ground rail 40. In the present embodiment, the reduction gear is a planetary reduction gear.

The bottom of the feeding trolley 50 is provided with a positioning mechanism 57. The positioning mechanism 57 is preferably an origin, limit switch.

In this embodiment, as shown in fig. 9, the secondary positioning device 60 includes a positioning plate 61 and two positioning bars 64, the positioning plate 61 has a product placing surface 62 and a plate back surface 63 which are oppositely arranged, the positioning bars 64 are arranged on the product placing surface 62, the number of the positioning bars 64 is two, the two positioning bars 64 enclose a product placing area, the product placing area is located above the two positioning bars 64, the two positioning bars 64 are vertically arranged, and the two positioning bars 64 are both inclined upwards; the product placement surface 62 is disposed obliquely in the direction from the product placement surface 62 to the board back surface 63, and the included angle between the product placement surface 62 and the horizontal direction is 60 ° to 80 °. This angle setting can be so that the mechanical handle product when placing on the product is placed the district, and the product is because of self gravity landing, and two location strips are hugged closely to the adjacent both sides of product, realize the accurate positioning when having no exogenic action, and positioning accuracy can reach positive negative 0.05 mm.

In this embodiment, as shown in fig. 10, the main function of the material taking and cleaning palm 72 is to take out and replace a product under the driving of the manipulator 71, and simultaneously take out the upper cover plate 22 of the fixture 21, clean the aluminum scraps on the fixture 21, and take and place the adhesive frame. The material taking and cleaning palm 72 comprises a cover plate taking device 73, a processed product taking device 74, an air blowing pipe 75, an unprocessed product taking device 76 and a glue taking frame device, wherein the cover plate taking device 73, the processed product taking device 74, the unprocessed product taking device 76 and the glue taking frame device are located in different planes. The cover plate taking device 73 is used for taking the cover plate 22 of the clamp 21 under the drive of the manipulator 71, and the processed product taking device 74 is used for taking the processed product from the clamp 21 under the drive of the manipulator 71 and placing the processed product on the rubber frame of the processed product stacking device 52; the air blowing pipe 75 is used for blowing and cleaning the CNC20 under the driving of the mechanical arm 71 to avoid the influence of scraps on the processing of workpieces, and the unprocessed product taking device 76 is used for taking unprocessed products from a rubber frame of the unprocessed product stacking device 51 and placing the unprocessed products on the clamp 21 under the driving of the mechanical arm 71; the adhesive dispenser device is used for taking an empty adhesive dispenser from the unprocessed product stacking device 51 and placing the empty adhesive dispenser on the processed product stacking device 53 for stacking under the driving of the manipulator 71.

In this embodiment, the cover plate taking device 73 includes a plate taking mechanism 731 and a top plate mechanism 732, the plate taking mechanism 731 is preferably an electromagnet, and the top plate mechanism 732 is preferably a top plate cylinder. When the cover plate 22 is taken by the material taking and cleaning palm 72, the cover plate 22 is sucked by the electromagnet, and when the cover plate 22 is put, the magnetism does not completely disappear after the electromagnet is powered off, so that the cover plate 22 is ejected by the top plate cylinder. In the present embodiment, the number of plate taking mechanisms 731 is two, and the top plate mechanism 732 is located between the plate taking mechanisms 731.

In this embodiment, the processed product taking device 74, the unprocessed product taking device 76 and the glue taking frame device are preferably vacuum chuck structures.

The material taking and cleaning palm 72 further comprises a proximity switch arranged between the plate taking mechanisms 731 and used for clamping whether the plate driving mechanism sucks the cover plate 22 or not, a positioning pin 77 used for positioning the cover plate 22 and a displacement-preventing pressing mechanism 78 arranged corresponding to the product machining hole 221 are mounted on the material taking and cleaning palm 72, the positioning pin 77 is used for preventing the cover plate 22 from being displaced when being sucked, and the displacement-preventing pressing mechanism 78 is used for pressing the product machining hole 221 penetrating through the cover plate 22 onto the product so as to avoid taking up the product when the cover plate 22 is taken. In the present embodiment, the displacement prevention pressing mechanism 78 is a buffer oil pressing member.

The working principle of the CNC automatic line is as follows: the transfer machine is installed at the side of two CNC20, and automatically-controlled door 30 is installed to every CNC20 side door, and manipulator 71 is installed on feeding dolly 50, gets material clearance palm 72 and sets up on manipulator 71, and eight CNC20 of a feeding dolly 50 supply get the product of trading. After the product is processed by the CNC20 No. 1, the automatic door 30 on the side of the CNC20 is opened, and the feeding trolley 50 moves to a position between the CNC20 No. 1 and the CNC20 No. 2, and the feeding trolley 50 takes the unprocessed product from the rubber basket of the unprocessed product stacking device 51 by the material taking and cleaning palm 72 of the manipulator 71 on the trolley while moving, and positions the product by the secondary positioning device 60. After the feeding trolley 50 moves to the proper position, the positioning mechanism 57 on the trolley precisely positions the trolley, then the material taking and cleaning palm 72 of the manipulator 71 extends into the CNC20 No. 1, the machined product is taken away through the machined product taking device 74, and the clamp 21 is cleaned through the air blowing pipe 75. The take-off cleaning palm 72 of the robot 71 then places the processed product into a processed product basket on the cart. And then the unprocessed product on the secondary positioning device 60 is installed by the material taking and cleaning palm 72, and the manipulator 71 takes the product of 2-8 CNC20 while processing the product by No. 1 CNC20 in this circulation. When the unprocessed products on the trolley are completely processed, the feeding trolley 50 moves to the side of the main control electronic box 10 to wait for manual material changing.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A CNC automation line, comprising:

a CNC for machining a product, the CNC including a fixture;

the automatic door is arranged on one side of the CNC; the automatic door comprises an air cylinder, a sliding rail and a door main body, wherein the door main body is in sliding connection with the sliding rail, and the air cylinder is connected with the door main body;

the feeding trolley is arranged on the ground rail and used for conveying a product to be processed to the CNC under the guidance of the ground rail, and the feeding trolley is connected with the ground rail in a sliding mode; the feeding trolley further comprises a raw product stacking device and a processed product stacking device, the processed product stacking device is positioned above the raw product stacking device, the raw product stacking device and the processed product stacking device are both rubber frames with stacking lifting mechanisms, and a plurality of rubber baskets for placing products are arranged on the rubber frames;

the secondary positioning device is arranged on the feeding trolley and used for positioning a product to be processed, the secondary positioning device comprises a positioning plate and two positioning strips, the positioning plate is provided with a product placing surface and a plate back surface which are oppositely arranged, the positioning strips are arranged on the product placing surface, a product placing area is defined by the two positioning strips, the two positioning strips are vertically arranged, and the product placing area is positioned above the two positioning strips; the product placing surface is obliquely arranged towards the direction from the product placing surface to the back surface of the plate, and the included angle between the product placing surface and the horizontal direction is 60-80 degrees; and

2. The CNC automatic line according to claim 1, wherein the clamp includes a cover plate for covering the product and a pressing plate mechanism for driving the cover plate to press the product; and the cover plate is provided with a product processing hole.

3. The CNC automation line of claim 2 wherein the take-off cleaning palm comprises a take-off cover device, a take-off product device, a blow tube and a take-off glue rack device, the take-off cover device and the take-off product device being located in different planes.

4. The CNC automation line of claim 3 wherein the product taking device comprises a processed product taking device and an unprocessed product taking device located at different planes.

5. The CNC automation line of claim 3, wherein the cover removing device comprises a plate removing mechanism and a top plate mechanism, wherein the plate removing mechanism is an electromagnet, and the top plate mechanism is a top plate cylinder.

6. The CNC automation line of claim 1, wherein the ground rail is provided with a rack, the feeding trolley is provided with a transmission mechanism, the transmission mechanism comprises a servo motor, a speed reducing component and a gear which are connected in sequence, and the gear is meshed with the rack of the ground rail.

7. The CNC automation line of claim 1 wherein the feed trolley is in sliding contact with the ground rail.