CN115922386A - Automatic center separating device for sheet workpieces - Google Patents
Automatic center separating device for sheet workpieces Download PDFInfo
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- CN115922386A CN115922386A CN202211505678.6A CN202211505678A CN115922386A CN 115922386 A CN115922386 A CN 115922386A CN 202211505678 A CN202211505678 A CN 202211505678A CN 115922386 A CN115922386 A CN 115922386A
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- 230000005540 biological transmission Effects 0.000 claims description 110
- 230000000903 blocking effect Effects 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
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- 230000004888 barrier function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention relates to an automatic centering device for sheet workpieces, which comprises a rack, an object carrying plate erected at the top of the rack, a positioning workbench arranged on the object carrying plate, a first clamping mechanism arranged along the X direction and a second clamping mechanism arranged along the Y direction at the top of the rack, wherein first clamping columns are arranged on two opposite sides of the first clamping mechanism along the X direction, and second clamping columns are arranged on two opposite sides of the second clamping mechanism along the X direction; the object carrying plate is respectively provided with a first sliding groove along the X direction and at least two second sliding grooves extending along the Y direction, the first clamping column penetrates through the first sliding groove, and the second clamping column penetrates through the second sliding groove; the first clamping mechanism is used for driving the first clamping columns on two sides of the positioning workbench to move in the X direction or in the reverse direction, and the second clamping mechanism is used for driving the second clamping columns on two sides of the positioning workbench to move in the Y direction or in the reverse direction so as to clamp or loosen a workpiece. The invention has simple structure, high positioning precision and strong applicability.
Description
Technical Field
The invention relates to the technical field of workpiece positioning, in particular to an automatic centering device for sheet workpieces.
Background
The existing thin-sheet workpieces (such as glass sheets, sapphire sheets and the like) need to be positioned before being sent to a machine tool for processing so as to ensure the processing accuracy. The transmission positioning method generally adopts an air cylinder to push a workpiece to be close to a limiting plate to perform unilateral positioning as shown in fig. 1, and when thrust is applied to at least one side of the workpiece 1, the workpiece gradually moves to the limiting plate 2, so that positioning is realized.
However, the single-sided positioning limitation is relatively large, and is embodied in the following two aspects: on the one hand, the influence of the size of the blank material is large. When unilateral positioning is carried out, if the workpiece has a size error, the error can be reflected on one side of the workpiece far away from the limiting plate in a centralized manner, if the actual size of the blank is smaller than the standard size, when the positioned workpiece is transferred to a machine tool machining table by adopting a transfer device for machining, one side or two sides of the workpiece far away from the limiting plate can not be machined by a cutter due to insufficient machining allowance, and finally the obtained finished product is scrapped due to the fact that the size is too small; if the actual size of the rough blank is larger than the standard size, when the positioned workpiece is transferred to a machine tool machining table by using the transfer device for machining, the situation that the tool has large tool cutting amount and the tool is abraded too fast due to the fact that machining allowance is too large on one side or two sides of the workpiece far away from the limiting plate can be caused. And on the other hand, the adaptability of the unilateral positioning jig is poor. The work piece size diverse, after the work piece size that is used for processing changes, the tool that traditional unilateral location used no longer is applicable.
Disclosure of Invention
Based on the above, the invention aims to provide an automatic centering device for sheet workpieces, which performs centering and positioning on the sheet workpieces and has the advantages of high positioning accuracy and strong applicability.
An automatic centering device for sheet workpieces comprises a rack, a carrying plate erected at the top of the rack, a positioning workbench arranged on the carrying plate, a first clamping mechanism arranged at the top of the rack along the X direction and a second clamping mechanism arranged along the Y direction, wherein first clamping columns are arranged on two opposite sides of the first clamping mechanism along the X direction, and second clamping columns are arranged on two opposite sides of the second clamping mechanism along the Y direction; the object carrying plate is respectively provided with a first sliding groove along the X direction and a second sliding groove extending along the Y direction, the first clamping columns penetrate through the first sliding groove, the second clamping columns penetrate through the second sliding groove, so that the first clamping columns are located on two opposite sides of the positioning workbench along the X direction, and the second clamping columns are located on two opposite sides of the positioning workbench along the Y direction; first fixture is used for the drive to be located positioning table both sides first centre gripping post is along X direction phase or reverse movement, second fixture is used for the drive positioning table both sides second centre gripping post is along Y direction phase or reverse movement to press from both sides tightly or loosen and place work piece on the positioning table.
Compared with the prior art, the center-dividing positioning is realized by clamping the peripheral side edges of the workpiece from the X direction and the Y direction through the first clamping mechanism, and the problems of finished product defects or cutter abrasion during machining caused by uneven workpiece size in the traditional single-side positioning are solved.
Furthermore, the first clamping mechanism comprises two first sliding assemblies respectively arranged on two opposite sides of the top of the rack along the X direction, a first X-direction sliding plate and a second X-direction sliding plate which are respectively fixed on the two first sliding assemblies, and a first transmission assembly; the first X-direction sliding plate and the second X-direction sliding plate are respectively connected with the frame in a sliding mode through the first sliding assembly, and the first X-direction sliding plate is in transmission connection with the second X-direction sliding plate through the first transmission assembly; the first clamping columns are respectively arranged on the first X-direction sliding plate and the second X-direction sliding plate; the two first transmission assemblies are respectively connected with the first X-direction sliding plate and the second X-direction sliding plate and are used for driving the first clamping column on the first X-direction sliding plate and the first clamping column on the second X-direction sliding plate to move oppositely or oppositely;
the second clamping mechanism comprises two second sliding assemblies respectively arranged at two sides of the top of the rack along the Y direction, a first Y-direction sliding plate and a second Y-direction sliding plate which are respectively fixed on the two second sliding assemblies, and a second transmission assembly; the first Y-direction sliding plate and the second Y-direction sliding plate are respectively connected with the rack in a sliding manner through the second sliding assembly, and the first Y-direction sliding plate is connected with the second Y-direction sliding plate in a transmission manner through the second transmission assembly; the second clamping columns are respectively arranged on the first Y-direction sliding plate and the second Y-direction sliding plate;
the two second transmission assemblies are respectively connected with the first Y-direction sliding plate and the second Y-direction sliding plate and used for driving the second clamping column on the first Y-direction sliding plate and the second clamping column on the second Y-direction sliding plate to move in the opposite direction or in the opposite direction.
Further, the first sliding assembly comprises a first guide rail fixed on the top of the rack and extending along the X direction, and first sliding blocks respectively matched with the first guide rail; the first X-direction sliding plate and the second X-direction sliding plate are respectively fixed on the first sliding block; the second sliding assembly comprises a second guide rail fixed at the top of the rack and extending along the Y direction, and second sliding blocks respectively matched with the second guide rail; the first Y-direction sliding plate and the second Y-direction sliding plate are respectively fixed on the second sliding block.
Furthermore, the first transmission assembly comprises two first transmission wheels arranged on two sides of the rack along the X direction, a first transmission belt in matched transmission with the two first transmission wheels, two first clamping pieces for clamping the first transmission belt, and a first driving motor; the first driving motor is provided with an output shaft which is fixedly connected with the axis of the first driving wheel and is used for driving the first driving wheel to rotate; the two first clamping pieces are used for clamping the belt bodies on two opposite sides of the first transmission belt respectively and are connected with the first X-direction sliding plate and the second X-direction sliding plate respectively; the second transmission assembly comprises two second transmission wheels arranged on two sides of the rack along the Y direction, a second transmission belt matched with the two second transmission wheels, two second clamping pieces for clamping the second transmission belt, and a second driving motor; the second driving motor is provided with an output shaft which is fixedly connected with the axle center of a second driving wheel and is used for driving the second driving wheel to rotate; the two second clamping pieces are respectively and fixedly connected with the first Y-direction sliding plate and the second Y-direction sliding plate, are respectively positioned at two opposite sides of the second transmission belt and are respectively connected with the first Y-direction sliding plate and the second Y-direction sliding plate.
Furthermore, one first transmission component is fixedly connected with the first X-direction sliding plate, and the other first transmission component is elastically connected with the second X-direction sliding plate; one second transmission component is fixedly connected with the first Y-direction sliding plate, and the other second transmission component is elastically connected with the second Y-direction sliding plate.
Furthermore, the first transmission component connected with the second X-direction sliding plate further comprises a first elastic piece, one end of the first elastic piece is fixedly connected with the first clamping piece, and the other end of the first elastic piece is fixedly connected with the second X-direction sliding plate; the second transmission assembly connected with the second Y-direction sliding plate further comprises a second elastic piece, one end of the second elastic piece is fixedly connected with the second clamping piece, and the other end of the second elastic piece is fixedly connected with the second Y-direction sliding plate.
Further, the first transmission assembly connected with the second X-direction sliding plate further comprises a third guide rail extending along the X direction, and a third sliding block matched with the third guide rail to slide; the third guide rail is fixedly connected with the first clamping piece, and the third sliding block is fixedly connected with the second X-direction sliding plate, so that the first clamping piece is slidably connected with the second X-direction sliding plate; the second transmission assembly connected with the second Y-direction sliding plate further comprises a fourth guide rail extending along the Y direction and a fourth sliding block matched with the fourth guide rail to slide; the fourth guide rail is fixedly connected with the second clamping piece, and the fourth sliding block is fixedly connected with the second Y-direction sliding plate, so that the second clamping piece is slidably connected with the second Y-direction sliding plate.
Furthermore, the first clamping mechanism further comprises a first limiting component;
the first limiting assembly comprises a first photoelectric sensor and a first blocking piece, and the first photoelectric sensor is arranged on the second X-direction sliding plate and is electrically connected with the first driving motor; one end of the first blocking piece is fixedly connected with the first clamping piece, and the other end of the first blocking piece extends along the X direction and can extend into the first photoelectric sensor to block a light source signal in the first photoelectric sensor so as to control the start and stop of the first driving motor; the second clamping mechanism further comprises a second limiting component; the second limiting assembly comprises a second photoelectric sensor and a second blocking piece, and the second photoelectric sensor is arranged on the second Y-direction sliding plate and is electrically connected with the second driving motor; one end of the second blocking piece is fixedly connected with the second clamping piece, and the other end of the second blocking piece extends along the Y direction and can extend into the second photoelectric sensor to block a light source signal in the second photoelectric sensor so as to control the start and stop of the second driving motor.
Furthermore, the first transmission wheel and the second transmission wheel are synchronous wheels, and the first transmission belt and the second transmission belt are synchronous belts.
Further, the first elastic piece and the second elastic piece are both tension springs.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a conventional single-sided positioning process;
FIG. 2 is a perspective view of an automatic centering device for sheet-like workpieces according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first clamping mechanism in an automatic sorting apparatus for sheet-like workpieces according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first transmission assembly in the automatic sorting apparatus for sheet-like workpieces according to the embodiment of the present invention;
FIG. 5 is a schematic structural view of a second clamping mechanism in the automatic sorting apparatus for sheet-like workpieces according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second transmission assembly in the automatic sorting device for sheet-like workpieces according to the embodiment of the invention;
FIG. 7 is a schematic view of a first position-limiting assembly of the automatic sorter for sheet-like workpieces according to the embodiment of the invention;
FIG. 8 is a schematic structural diagram of a first limiting assembly in the automatic sorting apparatus for thin-sheet workpieces according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a second limiting assembly in the automatic sorting apparatus for thin-sheet workpieces according to the embodiment of the present invention;
reference numerals: 1-workpiece, 2-limit plate, 10-frame, 20-carrier plate, 20 a-first sliding groove, 20 b-second sliding groove, 30-positioning workbench, 40-first clamping mechanism, 42-first sliding component, 422-first guide rail, 424-first sliding block, 44 a-first X-direction sliding plate, 44 b-second X-direction sliding plate, 46-first transmission component, 461-first elastic component, 462-first transmission wheel, 463-third guide rail, 464-first transmission belt, 465-third sliding block, 466-first clamping component, 468-first driving motor, 48-first limiting component, 482-first photoelectric sensor, 484-first baffle plate 484 a-first supporting part, 484 b-first shielding part, 50-first clamping column, 60-second clamping mechanism, 62-second sliding component, 622-second guide rail, 624-second sliding block, 64 a-first Y-direction sliding plate, 64 b-second Y-direction sliding plate, 66-second transmission component, 662-second transmission wheel, 664-second transmission belt, 666-second clamping component, 668-second driving motor, 661-second elastic component, 663-fourth guide rail 665, 665-fourth sliding block, 68-second limiting component, 682-second photoelectric sensor, 684-second blocking piece, 684 a-second supporting part, 684 b-second shielding part and 70-second clamping column.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or in an interactive relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Fig. 2 shows the general structure of the automatic center sorting device for sheet-like workpieces according to the embodiment of the invention. The automatic sheet workpiece center separating device comprises a frame 10, an object carrying plate 20 is erected on the top of the frame 10, and a positioning workbench 30 is arranged on the object carrying plate 20. First sliding grooves 20a extending in the X direction are respectively formed on two opposite sides of the positioning table 30 on the object plate 20, and second sliding grooves 20b extending in the Y direction are respectively formed on the other two opposite sides of the positioning table 30. The first clamping mechanism 40 is further disposed on the frame 10 along the X direction, two first clamping columns 50 are disposed on the first clamping mechanism 40, each first clamping column 50 corresponds to one first sliding groove 20a, and the first clamping column 50 penetrates through the two first sliding grooves 20a of the object carrying plate 20 and can slide in the first sliding groove 20 a. The frame 10 is further provided with a second clamping mechanism 60 along the Y direction, the second clamping mechanism 60 is provided with four second clamping columns 70, each second clamping column 70 corresponds to one second sliding groove 20b, and the second clamping column 70 penetrates through the second sliding groove 20b of the object carrying plate 20 and can slide in the second sliding groove 20b. The first clamping mechanism 40 is used for driving the first clamping columns 50 on two sides of the positioning workbench 30 to move towards or away from each other along the X direction, and the second clamping mechanism 60 is used for driving the second clamping columns 70 on two sides of the positioning workbench 30 to move towards or away from each other along the Y direction so as to clamp or release the workpiece 1 placed on the positioning workbench 30. Wherein, the included angle between the X direction and the Y direction is 90 degrees, and the plane vertical to the X direction and the Y direction is the Z direction.
Fig. 3 shows a specific structure of a first clamping mechanism in the automatic sorting device for sheet-like workpieces. The first clamping mechanism 40 includes two first sliding members 42 disposed at opposite sides of the top of the frame 10, a first X-direction sliding plate 44a and a second X-direction sliding plate 44b fixed to the two first sliding members 42, respectively, and a first transmission member 46. The first sliding assembly 42 includes two first guide rails 422 and two first sliding blocks 424 cooperating with the first guide rails 422, wherein the two first guide rails 422 are fixed on the top of the machine frame 10 in parallel and extend along the X direction. The first X-direction sliding plate 44a is horizontally fixed on top of the two first sliding blocks 424 on the same side, the second X-direction sliding plate 44b is horizontally fixed on top of the two first sliding blocks 424 on the other side, and the two first clamping columns 50 are vertically fixed on the first X-direction sliding plate 44a and the second X-direction sliding plate 44b, respectively.
Fig. 4 shows a specific structure of a first transmission assembly in the automatic sorting device for sheet-like workpieces. The first transmission assembly 46 includes two first transmission wheels 462, a first transmission belt 464 for cooperating with the two first transmission wheels 462, a first clamping member 466 and a first driving motor 468. The two first driving wheels 462 are respectively arranged on two opposite sides of the rack 10 along the X direction; the first driving motor 468 has an output shaft (not shown) fixedly connected to the axis of one of the first transmission wheels 462; the two first clamping members 466 clamp the belt bodies on opposite sides of the first driving belt 464 respectively, and are connected to the first X-direction sliding plate 44a and the second X-direction sliding plate 44b respectively. Here, the first clamping member 466 and the first X-direction sliding plate 44a are fixedly connected; the first clamping member 466 and the second X-direction sliding plate 44b may be fixedly connected or elastically connected. The first clamping member 466 can be composed of two clamping plates, and is connected to clamp the first driving belt 464 by a fastener, or can be an integrally formed clamping block, and the clamping block is provided with an opening extending to two side edge positions for clamping the first driving belt 464.
Fig. 5 shows a specific structure of a second clamping mechanism in the automatic sorting device for sheet type workpieces. The second clamping mechanism 60 includes two second sliding members 62 disposed on two opposite sides of the top of the frame 10, a first Y-sliding plate 64a and a second Y-sliding plate 64b fixed to the two second sliding members 62, respectively, and a second transmission member 66. The second sliding assembly 62 includes two second guide rails 622 and two second sliding blocks 624 cooperating with the second guide rails 622, wherein the two second guide rails 622 are fixed on the top of the frame 10 in parallel and extend along the Y direction. The first Y-sliding plate 64a is horizontally fixed on top of the two second sliding blocks 624 on the same side, the second Y-sliding plate 64b is horizontally fixed on top of the two second sliding blocks 624 on the other side, and four second clamping columns 70 are vertically fixed on the first Y-sliding plate 64a and the second Y-sliding plate 64b two by two, respectively.
Fig. 6 shows a specific structure of a second transmission assembly in the automatic sorting device for sheet type workpieces. The second driving assembly 66 includes two second driving wheels 662, a first driving belt 464 driven by the two second driving wheels 662, a second clamping member 666 and a second driving motor 668. Two second driving wheels 662 are respectively arranged on two opposite sides of the rack 10 along the X direction; the second driving motor 668 has an output shaft (not shown) fixedly connected to the axial center of one of the second driving wheels 662; the two second clamping members 666 respectively clamp the belts on the two opposite sides of the second belt 664, and are respectively fixedly connected to the first Y-sliding plate 64a and the second Y-sliding plate 64 b. Here, the second clamping member 666 is fixedly connected to the first Y-sliding plate 64 a; the second clamping member 666 and the second Y-sliding plate 64b may be fixedly connected or elastically connected. The second clamping member 666 can be composed of two clamping plates, and clamp the second belt 664 through the connection of the fastener, or an integrally formed clamping block, which is provided with an opening extending to the edge of two sides for clamping the second belt 664, in this embodiment, the second clamping member 666 is composed of two clamping plates.
When the first transmission assembly 46 works, the first driving motor 468 drives the first transmission wheel 462 fixedly connected therewith to rotate, and drives the other first transmission wheel 462 to rotate synchronously through the transmission of the first transmission belt 464. At this time, the two first clamping members 466 of the belt bodies respectively located at the opposite sides of the first driving belt 464 synchronously move in the X direction or in the reverse direction along with the movement of the first driving belt 464, so that the two first clamping columns 50 respectively fixed on the first X-direction sliding plate 44a and the second X-direction sliding plate 44b move in the X direction or in the reverse direction. Similarly, when the second transmission assembly 66 works, the second driving motor 668 drives the second transmission wheel 662 fixedly connected therewith to rotate, and drives another second transmission wheel 662 to rotate synchronously through the transmission of the second transmission belt 664. At this time, the two second clamping members 666 of the belt bodies respectively located at the opposite sides of the second driving belt 664 synchronously move toward or away from each other in the Y direction with the movement of the second driving belt 664, so that the second clamping columns 70 respectively fixed to the first Y-direction sliding plate 64a and the second Y-direction sliding plate 64b synchronously move toward or away from each other in the Y direction two by two.
Before positioning the workpiece 1, the workpiece 1 is horizontally placed on the positioning table 30, and the first drive motor 468 and the second drive motor 668 are simultaneously started. The first X-sliding plate 44a and the second X-sliding plate 44b are moved toward each other along the first guide rail 422 by the driving of the first driving unit 46, respectively, so that the first clamping columns 50 on opposite sides of the positioning table 30 are moved toward the workpiece 1. The first Y-direction sliding plate 64a and the second Y-direction sliding plate 64b are driven by the second driving assembly 66 to move toward each other along the second guide rail 622, respectively, so as to move the second clamping columns 70 on the other opposite sides of the positioning table 30 toward the workpiece 1. When the first clamping column 50 and the second clamping column 70 touch the edge of the workpiece 1, the workpiece 1 is clamped from the X direction and the Y direction, and the neutral positioning is finished.
Compared with the conventional single-side positioning, the workpiece 1 is clamped by moving the first clamping column 50 and the second clamping column 70 from the X direction and the Y direction respectively, but at this time, the first clamping column 50 and the second clamping column 70 are in rigid contact with the workpiece 1, so that the workpiece 1 is easily deformed and damaged in the clamping and positioning process.
To solve this problem, the second X-direction sliding plate 44b and the first transmission assembly 46 in the above-mentioned automatic sorting apparatus for sheet-like workpieces are connected to each other in an elastic manner, and the second Y-direction sliding plate 64b and the second transmission assembly 66 are connected to each other in an elastic manner. The method specifically comprises the following steps:
as shown in fig. 6 and 7, the first transmission assembly 46 elastically connected to the second X-direction sliding plate 44b further includes a first elastic member 461, a third guide 463 extending in the X-direction, and a third slider 465 sliding in cooperation with the third guide 463. The first elastic element 461 is specifically a tension spring, and the first elastic element 461 is disposed along the X direction, and one end thereof is fixedly connected to the first clamping element 466, and the other end thereof is fixedly connected to the second X-direction sliding plate 44 b. When the first clamping member 466 moves along with the transmission of the first transmission belt 464, the driving force is transmitted to the second X-direction sliding plate 44b through the first elastic member 461, so as to drive the second X-direction sliding plate 44b to move along the X direction. The third guide 463 is fixedly connected to a first clamping member 466, and the top of the third slider 465 is fixedly connected to the bottom of the second X-direction sliding plate 44b, so that the first clamping member 466 is slidably connected to the second X-direction sliding plate 44b, and thus a supporting force can be provided to the first clamping member 466 from the top thereof, the first clamping member 466 is prevented from being suspended on the first transmission belt 464, and at the same time, the first clamping member 466 and the second X-direction sliding plate 44b can be ensured to be displaced relatively.
As shown in fig. 8 and 9, the second transmission assembly 66 connected to the second Y-sliding plate 64b further includes a second elastic member 661, a fourth guide rail 663 extending in the Y-direction, and a fourth slider 665 sliding in cooperation with the fourth guide rail 663. The second elastic member 661 is specifically a tension spring, and the second elastic member 661 is disposed along the Y direction, and one end thereof is fixedly connected to the second clamping member 666 and the other end thereof is fixedly connected to the second Y-direction sliding plate 64 b. When the second clamping member 666 moves along with the transmission of the second transmission belt 664, the second elastic member 661 transmits the driving force to the second Y-direction sliding plate 64b, so as to drive the second Y-direction sliding plate 64b to slide along the Y-direction. Fourth rail 663 is fixedly connected to a second clamping member 666, and the top of fourth slide block 665 is fixedly connected to the bottom of second Y-sliding plate 64b, so that second clamping member 666 is slidably connected to second Y-sliding plate 64b, thereby providing a supporting force to second clamping member 666 from the top thereof, preventing second clamping member 666 from hanging on second belt 664, and at the same time, ensuring that second clamping member 666 and second Y-sliding plate 64b can be displaced relatively.
The contact between the first clamping column 50 on one side and the workpiece 1 is changed from rigid contact to flexible contact by the elastic connection between the second X-direction sliding plate 44b and the first clamping member 466 through the first elastic member 461; meanwhile, the second Y-direction sliding plate 64b is elastically connected to the second clamping member 666 through the second elastic member 661, and the contact between the second clamping column 70 on one side and the workpiece 1 is changed from rigid contact to flexible contact, so as to ensure that there is a certain elastic expansion amount in both the X direction and the Y direction during the positioning of the workpiece 1, and thus the workpiece 1 can be prevented from being damaged due to the excessive clamping force in the X direction and the Y direction.
However, the above technical solution can avoid the problem that the workpiece 1 is deformed and even damaged due to too large clamping force to some extent, however, if the clamping force is too small, the workpiece 1 is not completely clamped, which affects the positioning accuracy, and therefore, it is critical to control the position to which the first clamping column 50 or the second clamping column 70 moves relatively to apply the proper clamping force to the workpiece 1.
To solve this problem, the first clamping mechanism 40 further includes a first limiting assembly 48, and the first limiting assembly 48 includes a first photosensor 482 and a first stop piece 484. The first photoelectric sensor 482 is fixed on the second X-direction sliding plate 44b, the first blocking piece 484 is specifically composed of a first supporting portion 484a and a first shielding portion 484b, the first supporting portion 484a is fixedly connected with the first clamping member 466, the first shielding portion 484b extends along the X direction, one end of the first shielding portion 484a is fixedly connected with the first supporting portion 484a, the other end of the first shielding portion 484b is a free end, and the free end faces a direction away from the workpiece 1 and can extend into the first photoelectric sensor 482 to shield a light source signal in the first photoelectric sensor 482 so as to control starting and stopping of the first driving motor 468.
Likewise, the second fixture 60 further includes a second stop assembly 68, and the second stop assembly 68 further includes a second photosensor 682 and a second stop 684. The second photoelectric sensor 682 is fixed on the second Y-direction sliding plate 64b, the second blocking piece 684 specifically includes a second supporting portion 684a and a second blocking portion 684b, the second supporting portion 684a is fixedly connected to the second clamping member 666, the second blocking portion 684b extends in the Y direction, one end of the second blocking portion 684b is fixedly connected to the second supporting portion 684a, and the other end is a free end facing the direction of the workpiece 1 and capable of extending into the second photoelectric sensor 682 to block the light source signal in the second photoelectric sensor 682, so as to control the on/off of the second driving motor 668.
Before use, the first shielding portion 484b of the first shielding sheet 484 is located at a position not to shield the first photosensor 482, and the second shielding portion 684b of the second shielding sheet 684 is located at a position to shield the second photosensor 682. In use, the workpiece 1 is placed on the positioning table 30, and then the first driving motor 468 and the second driving motor 668 are simultaneously started to drive the first X-direction sliding plate 44a and the second X-direction sliding plate 44b to move towards each other through the matching transmission of the first driving wheel 462 and the first driving belt 464; and, through the matching transmission of the second transmission wheel 662 and the second transmission belt 664, the first Y-direction sliding plate 64a and the second Y-direction sliding plate 64b are driven to move towards each other, so that the first clamping columns 50 located at two opposite sides of the workpiece 1 gradually approach towards the workpiece 1 along the X direction, and the second clamping columns 70 located at two opposite sides gradually approach towards the workpiece 1 along the Y direction simultaneously until contacting with the peripheral sides of the workpiece 1. At this time, since the first clamping column 50 provided on the second X-direction sliding plate 44b is in flexible contact with the workpiece 1, the thrust force applied to the workpiece 1 by the first clamping column 50 on the second X-direction sliding plate 44b is smaller than the thrust force applied to the workpiece 1 by the first clamping column 50 on the first X-direction sliding plate 44a, and therefore the first clamping column 50 on the second X-direction sliding plate 44b is moved in the X direction away from the workpiece 1 in reaction to the force of the workpiece 1. As the second X-direction sliding plate 44b moves, the first photosensor 482 and the first blocking piece 484 gradually approach each other until the first blocking portion 484b of the first blocking piece 484 blocks the light source signal in the first photosensor 482, and the first photosensor 482 feeds back a signal to the first drive motor 468, so that the first drive motor 468 stops operating, and the first X-direction sliding plate 44a and the second X-direction sliding plate 44b stop moving. Meanwhile, since the second clamping post 70 provided on the second Y-direction sliding plate 64b is in flexible contact with the workpiece 1, the thrust force applied to the workpiece 1 by the second clamping post 70 on the second Y-direction sliding plate 64b will be smaller than the thrust force applied to the workpiece 1 by the second clamping post 70 on the first Y-direction sliding plate 64a, and therefore the second clamping post 70 on the second Y-direction sliding plate 64b will be moved in the Y-direction away from the workpiece 1 in reaction to the force of the workpiece 1. As the second Y-direction sliding plate 64b moves, the second photosensor 682 and the second barrier 684 are gradually separated from each other until the second blocking portion 684b of the second barrier 684 cannot block the light source signal in the second photosensor 682, the second photosensor 682 feeds back a signal to the second driving motor 668, and the second driving motor 668 stops operating, so that the first X-direction sliding plate 44a and the second X-direction sliding plate 44b stop sliding, and at this time, the centering and positioning of the workpiece 1 is completed.
Here, the distance between the tip of the first shielding portion 484b and the light source in the first photosensor 482 before use is a first overtravel distance; the distance between the front end of the second shielding portion 684b and the light source in the second photosensor 682 before use is the second overtravel distance. The amount of clamping force applied by the first clamping column 50 to the workpiece 1 in the X direction is affected by two factors: one is the elastic force of the first elastic element 461, and the larger the elastic force is, the larger the clamping force is; the second is the first overtravel distance, and the greater the first overtravel distance is, the greater the deformation amount of the first elastic member 461 is, the greater the clamping force is. The clamping force applied by the second clamping column 70 to the workpiece 1 in the X direction is affected by the second elastic member 661 and the second over-travel distance, and the principle thereof is the same as that of the clamping force in the X direction, so the description thereof is omitted. The lengths of the first and second shield portions 484b, 684b may be determined as desired for the centering. Since the lengths of the first shielding portion 484b and the second shielding portion 684b are fixed, it is ensured that the first overtravel distance and the second overtravel distance are the same at each positioning, thereby ensuring that the centered positioning of each workpiece is accurate and consistent, and the clamping force at each positioning is also consistent.
Of course, the free end of the second shielding portion 684b of the second shielding sheet 684 may also be disposed in the direction toward the workpiece 1, that is, the second photosensor 682 and the second shielding sheet 684 gradually approach with the movement of the second Y-direction sliding plate 64b, and thus, the cooperation between the second shielding sheet 684 and the second photosensor 682 is set as follows: when the light source signal in the second photosensor 682 is blocked by the second blocking portion 684b of the second blocking piece 684, the second photosensor 682 feeds back a signal to the second drive motor 668, and the second drive motor 668 stops operating. Similarly, the free end of the first shielding portion 484b of the first shielding plate 484 may also be set to face away from the workpiece 1, that is, as the second X-direction sliding plate 44b moves, the first photoelectric sensor 482 and the first shielding plate 484 are gradually separated until the first shielding portion 484b of the first shielding plate 484 cannot shield the light source signal in the first photoelectric sensor 482, the first photoelectric sensor 482 feeds back a signal to the first driving motor 468, and the first driving motor 468 stops operating.
It should be noted that, in the above technical solution, the fixing connection or fixing manner of the different components may be direct connection between the two components, or may be connection through a fixing member (such as a fixing plate, a fixing rod, etc.), and may be specifically adjusted according to the spatial condition of actual installation.
In other embodiments, to improve the transmission accuracy of the first transmission assembly 46, the first and second transmission wheels 462 and 662 are synchronous wheels and the first and second transmission belts 464 and 664 are synchronous belts.
In other embodiments, the first drive motor 468 and the second drive motor 668 are servo motors.
Compared with the prior art, the center-dividing positioning device has the advantages that the first clamping mechanism is arranged to clamp the peripheral side edges of the workpiece from the X direction and the Y direction, so that center-dividing positioning is realized, the problem that the finished product is defective or a cutter is abraded during machining due to uneven size of the workpiece in the traditional single-side positioning process is solved, the center-dividing positioning device is suitable for workpieces with different sizes, the positioning accuracy is high, and the cost is low.
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 numerous changes and modifications can be made by those skilled in the art without departing from the inventive concepts and it is intended that such changes and modifications be covered by the present invention.
Claims (10)
1. The utility model provides a device in automatic branch of thin slice class work piece which characterized in that: the device comprises a rack (10), an object carrying plate (20) erected on the top of the rack (10), a positioning workbench (30) arranged on the object carrying plate (20), a first clamping mechanism (40) arranged along the X direction and a second clamping mechanism (60) arranged along the Y direction on the top of the rack (10), wherein first clamping columns (50) are arranged on two opposite sides of the first clamping mechanism (40) along the X direction, and second clamping columns (70) are arranged on two opposite sides of the second clamping mechanism (60) along the Y direction;
the object carrying plate (20) is respectively provided with a first sliding groove (20 a) extending along the X direction and a second sliding groove (20 b) extending along the Y direction, the first clamping columns (50) penetrate through the first sliding groove (20 a), the second clamping columns (70) penetrate through the second sliding groove (20 b), so that the first clamping columns (50) are located on two opposite sides of the positioning workbench (30) along the X direction, and the second clamping columns (70) are located on two opposite sides of the positioning workbench (30) along the Y direction;
the first clamping mechanism (40) is used for driving the first clamping columns (50) on two sides of the positioning workbench (30) to move in the opposite direction or the opposite direction along the X direction, and the second clamping mechanism (60) is used for driving the second clamping columns (70) on two sides of the positioning workbench (30) to move in the opposite direction or the opposite direction along the Y direction so as to clamp or loosen a workpiece (1) placed on the positioning workbench (30).
2. The automatic thin sheet workpiece centering device according to claim 1, wherein:
the first clamping mechanism (40) comprises two first sliding assemblies (42) which are respectively arranged at two opposite sides of the top of the rack along the X direction, a first X-direction sliding plate (44 a) and a second X-direction sliding plate (44 b) which are respectively fixed on the two first sliding assemblies (42), and a first transmission assembly (46); the first X-direction sliding plate (44 a) and the second X-direction sliding plate (44 b) are respectively connected with the frame (10) in a sliding way through the first sliding assembly (42); the first clamping columns (50) are respectively arranged on the first X-direction sliding plate (44 a) and the second X-direction sliding plate (44 b);
the first X-direction sliding plate (44 a) is in transmission connection with the second X-direction sliding plate (44 b) through the first transmission component (46), and the first transmission component (46) is used for driving a first clamping column (50) on the first X-direction sliding plate (44 a) and a first clamping column (50) on the second X-direction sliding plate (44 b) to move towards or away from each other;
the second clamping mechanism (60) comprises two second sliding assemblies (62) which are respectively arranged at two sides of the top of the rack along the Y direction, a first Y-direction sliding plate (64 a) and a second Y-direction sliding plate (64 b) which are respectively fixed on the two second sliding assemblies (62), and a second transmission assembly (66); the first Y-direction sliding plate (64 a) and the second Y-direction sliding plate (64 b) are respectively connected with the frame (10) in a sliding mode through the second sliding assembly (62); the second clamping columns (70) are respectively arranged on the first Y-direction sliding plate (64 a) and the second Y-direction sliding plate (64 b);
the first Y-direction sliding plate (64 a) is in transmission connection with the second Y-direction sliding plate (64 b) through the second transmission component (66), and the second transmission component (66) is used for driving a second clamping column (70) on the first Y-direction sliding plate (64 a) and a second clamping column (70) on the second Y-direction sliding plate (64 b) to move towards or away from each other.
3. The automatic thin sheet workpiece centering device according to claim 2, characterized in that:
the first sliding assembly (42) comprises a first guide rail (422) fixed at the top of the frame (10) and extending along the X direction, and first sliding blocks (424) respectively matched with the first guide rail (422); the first X-direction sliding plate (44 a) and the second X-direction sliding plate (44 a) are respectively fixed on the first sliding block (424);
the second sliding assembly (62) comprises a second guide rail (622) fixed at the top of the frame (10) and extending along the Y direction, and second sliding blocks (624) respectively matched with the second guide rail (622); the first Y-direction sliding plate (64 a) and the second Y-direction sliding plate (64 b) are respectively fixed on the second sliding block (624).
4. The automatic centering device for thin sheet workpieces as claimed in claim 3, wherein:
the first transmission assembly (46) comprises two first transmission wheels (462) arranged on two sides of the rack (10) along the X direction, a first transmission belt (464) in matched transmission with the two first transmission wheels (462), two first clamping pieces (466) for clamping the first transmission belt (464), and a first driving motor (468); the first driving motor (468) is provided with an output shaft which is fixedly connected with the axis of the first driving wheel (462) and is used for driving the first driving wheel (462) to rotate; the two first clamping pieces (466) respectively clamp the belt bodies on two opposite sides of the first transmission belt (464) and are respectively connected with the first X-direction sliding plate (44 a) and the second X-direction sliding plate (44 b);
the second transmission assembly (66) comprises two second transmission wheels (662) arranged at two sides of the rack (10) along the Y direction, a second transmission belt (664) matched with the two second transmission wheels (662), two second clamping members (666) clamping the second transmission belts (664), and a second driving motor (668); the second driving motor (668) is provided with an output shaft which is fixedly connected with the axle center of a second driving wheel (662) and is used for driving the second driving wheel (662) to rotate; the two second clamping members (666) are respectively fixedly connected with the first Y-direction sliding plate (64 a) and the second Y-direction sliding plate (64 b), and the two second clamping members (666) are respectively positioned at two opposite sides of the second driving belt (664) and are respectively connected with the first Y-direction sliding plate (64 a) and the second Y-direction sliding plate (64 b).
5. The automatic centering device for thin sheet workpieces as claimed in claim 4, wherein:
one first transmission assembly (46) is fixedly connected with the first X-direction sliding plate (44 a), and the other first transmission assembly (46) is elastically connected with the second X-direction sliding plate (44 b);
one second transmission component (66) is fixedly connected with the first Y-direction sliding plate (64 a), and the other second transmission component (66) is elastically connected with the second Y-direction sliding plate (64 b).
6. The automatic thin sheet workpiece centering device according to claim 5, wherein:
the first transmission assembly (46) connected with the second X-direction sliding plate (44 b) further comprises a first elastic member (461), one end of the first elastic member (461) is fixedly connected with the first clamping member (466), and the other end of the first elastic member is fixedly connected with the second X-direction sliding plate (44 b);
and the second transmission assembly (66) connected with the second Y-direction sliding plate (64 b) further comprises a second elastic member (661), one end of the second elastic member (661) is fixedly connected with the second clamping member (666), and the other end of the second elastic member is fixedly connected with the second Y-direction sliding plate (64 b).
7. The automatic thin sheet workpiece centering device according to claim 6, wherein:
the first transmission assembly (46) connected with the second X-direction sliding plate (44 b) further comprises a third guide rail (463) extending along the X direction, and a third sliding block (465) matched with the third guide rail (463) to slide; the third guide rail (463) is fixedly connected with the first clamping piece (466), and the third sliding block (465) is fixedly connected with the second X-direction sliding plate (44 b) so that the first clamping piece (466) is slidably connected with the second X-direction sliding plate (44 b);
the second transmission assembly (66) connected with the second Y-direction sliding plate (64 b) further comprises a fourth guide rail (663) extending along the Y direction, and a fourth sliding block (665) matched with the fourth guide rail for sliding; the fourth guide rail (663) is fixedly connected with the second clamping piece (666), the fourth sliding block (665) is fixedly connected with the second Y-direction sliding plate (64 b), and the second clamping piece (666) is connected with the second Y-direction sliding plate (64 b) in a sliding mode.
8. The automatic thin sheet workpiece centering device according to claim 7, wherein:
the first clamping mechanism (40) further comprises a first limiting component (48);
the first limiting assembly (48) comprises a first photoelectric sensor (482) and a first blocking piece (484), wherein the first photoelectric sensor (482) is arranged on the second X-direction sliding plate (44 b) and is electrically connected with the first blocking piece (468); one end of the first blocking piece (484) is fixedly connected with the first clamping piece (466), and the other end of the first blocking piece (484) extends along the X direction and can extend into the first photoelectric sensor (482) to block a light source signal in the first photoelectric sensor (482) so as to control the start and stop of the first blocking piece (468);
the second clamping mechanism (60) further comprises a second limiting component (68);
the second limit component (68) comprises a second photoelectric sensor (682) and a second baffle (684), the second photoelectric sensor (682) is arranged on the second Y-direction sliding plate (64 b) and is electrically connected with the second driving motor (668); one end of the second baffle (684) is fixedly connected with the second clamping piece (666), and the other end of the second baffle extends along the Y direction and can stretch into the second photoelectric sensor (682) to shield a light source signal in the second photoelectric sensor (682) so as to control the start and stop of the second driving motor (668).
9. The automatic thin sheet workpiece centering device according to any one of claims 4 to 8, characterized in that:
the first transmission wheel (462) and the second transmission wheel (662) are synchronous wheels, and the first transmission belt (464) and the second transmission belt (664) are synchronous belts.
10. The automatic thin sheet workpiece centering device according to any one of claims 5 to 8, characterized in that: the first elastic piece (461) and the second elastic piece (661) are both tension springs.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211505678.6A CN115922386B (en) | 2022-11-29 | 2022-11-29 | Automatic separating device for sheet workpieces |
| PCT/CN2023/134252 WO2024114559A1 (en) | 2022-11-29 | 2023-11-27 | Automatic centering device for sheet workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211505678.6A CN115922386B (en) | 2022-11-29 | 2022-11-29 | Automatic separating device for sheet workpieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115922386A true CN115922386A (en) | 2023-04-07 |
| CN115922386B CN115922386B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211505678.6A Active CN115922386B (en) | 2022-11-29 | 2022-11-29 | Automatic separating device for sheet workpieces |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115922386B (en) |
| WO (1) | WO2024114559A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024114559A1 (en) * | 2022-11-29 | 2024-06-06 | 广东科杰技术股份有限公司 | Automatic centering device for sheet workpieces |
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Also Published As
| Publication number | Publication date |
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| WO2024114559A1 (en) | 2024-06-06 |
| CN115922386B (en) | 2023-10-27 |
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