CN108974784B - PCB conveying device for chip mounter - Google Patents
PCB conveying device for chip mounter Download PDFInfo
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- CN108974784B CN108974784B CN201810563106.0A CN201810563106A CN108974784B CN 108974784 B CN108974784 B CN 108974784B CN 201810563106 A CN201810563106 A CN 201810563106A CN 108974784 B CN108974784 B CN 108974784B
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- China
- Prior art keywords
- chain
- clamping
- pcb
- driving
- driving chain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/40—Chains acting as load-carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
Abstract
The invention discloses a PCB conveying device for a chip mounter, which comprises two mounting plates arranged side by side, wherein a driving chain wheel and a driven chain wheel are respectively arranged at two ends of each mounting plate, the driving chain wheel and the driven chain wheel are mutually connected through a driving chain, the driving chain wheels on the two mounting plates are mutually connected through a rotating shaft, the driving chain wheel on one mounting plate is connected with a driving motor, the driving chain is formed by sequentially connecting clamping chain links and common chain links, and the outer sides of the clamping chain links are connected with a clamping device. The invention has the characteristics of high positioning precision and good mounting stability.
Description
Technical Field
The invention relates to a chip mounter, in particular to a PCB conveying device for the chip mounter.
Background
The chip mounter is a device for conveying a PCB to a designated position and accurately placing surface-mounted components on the PCB by moving a mounting head, wherein the mounting positions of the components are important factors influencing the quality of the PCB. Most of the current chip mounters finish conveying work of the PCB through friction driving of a conveying belt, but mutual sliding of the PCB is caused in the conveying process of the conveying belt, so that the position precision of the PCB in mounting is influenced; and because remove the subsides head and can exert certain pressure to the PCB board when subsides dress, lead to the PCB board to cause the slight deformation of conveying chain after the pressurized to make the PCB board form shake and slight displacement when subsides dress, cause the reduction of PCB board dress quality. Therefore, the existing chip mounter has the problems of low positioning precision and poor mounting stability in a PCB conveying mode.
Disclosure of Invention
The invention aims to provide a PCB conveying device for a chip mounter. The positioning device has the characteristics of high positioning precision and good mounting stability.
The technical scheme of the invention is as follows: a PCB conveying device for a chip mounter comprises two mounting plates which are arranged side by side, wherein the two mounting plates are mutually connected through a fixed cross beam, two ends of each mounting plate are respectively provided with a driving chain wheel and a driven chain wheel, the driving chain wheels are mutually connected through a driving chain, the driving chain wheels on the two mounting plates are mutually connected through a rotating shaft, the driving chain wheel on one mounting plate is connected with a driving motor, the driving chain is formed by sequentially connecting clamping chain links and common chain links, and the outer sides of the clamping chain links are connected with clamping devices; the clamping device comprises a mounting seat, the lower end of the mounting seat is connected with a clamping chain link, the upper end of the mounting seat is provided with a clamping rod through a mounting cylinder, one end of the clamping rod is provided with a rectangular plate, the outer side of the middle part of the clamping rod is provided with a pressure spring positioned in the mounting seat, and the other end of the clamping rod is provided with a permanent magnet positioned on the outer side of the mounting seat; the outer sides of two ends of the driving chain are respectively provided with a first electromagnet and a second electromagnet along the conveying direction of the driving chain, and a proximity switch matched with the second electromagnet is arranged on the fixed cross beam at one end along the conveying direction of the driving chain.
In the foregoing PCB conveying apparatus for a mounter, the clamping links and the common links are arranged in a manner of 1: 2 are connected in sequence in number ratio.
In the PCB conveying device for the chip mounter, the rectangular sleeve positioned on the outer side of the installation cylinder is arranged on the periphery of the rectangular plate.
In the PCB conveying device for a chip mounter, the clamping devices on the driving chains at two sides are symmetrically arranged.
In the foregoing PCB conveying device for a chip mounter, rubber plates are disposed on the tops of the clamping chain links and the common chain links.
Compared with the prior art, the PCB conveying device has the advantages that the driving chains on the mounting plates on the two sides can convey the PCB at the same rotating speed through the matching of the driving chain wheel, the rotating shaft and the driving motor, and the two ends of the PCB can be transversely positioned and clamped when the driving chains are conveyed through the clamping devices on the clamping chain links, so that the PCB is fixed and limited during conveying and mounting, and the conveying precision and the mounting stability of the PCB are improved; through the cooperation of the first electromagnet and the permanent magnet, the clamping rod can be automatically opened when the PCB is placed, so that a user can stably place the PCB on the driving chain, and the end part of the PCB can be mutually attached to the side wall of the rectangular sleeve when the user places the PCB, so that the rectangular sleeve can longitudinally position the PCB, and the conveying precision and the mounting stability of the PCB are further improved; through the cooperation of second electro-magnet, proximity switch and permanent magnet, the rectangle board is automatic to be opened when can making the PCB board carry to target in place to make drive chain can stably release the PCB board, further improved the transport stability to the PCB board.
In addition, the rubber plate can increase the contact area and the friction force between the clamping chain link and the PCB, thereby improving the conveying stability of the PCB and reducing the deformation of the clamping chain link caused by the PCB during mounting; the clamping rod can be guided by the cooperation of the installation cylinder and the rectangular sleeve, the problem that the clamping rod is blocked or deviated when being subjected to lateral force is avoided, and the clamping effect of the clamping device on the PCB is further improved. Therefore, the invention has the characteristics of high positioning precision and good mounting stability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the clamping device;
fig. 3 is a sectional view taken along the line a of fig. 2.
The labels in the figures are: 1-mounting plate, 2-fixed beam, 3-driving sprocket, 4-driven sprocket, 5-driving chain, 6-rotating shaft, 7-driving motor, 8-clamping device, 9-first electromagnet, 10-second electromagnet, 11-proximity switch, 501-clamping chain link, 502-common chain link, 503-rubber plate, 801-mounting seat, 802-mounting cylinder, 803-clamping rod, 804-rectangular plate, 805-pressure spring, 806-permanent magnet and 807-rectangular sleeve.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): a PCB conveying device for a chip mounter is formed as shown in figure 1, and comprises two mounting plates 1 which are arranged side by side, wherein the two mounting plates 1 are mutually connected through a fixed cross beam 2, two ends of each mounting plate 1 are respectively and rotatably connected with a driving chain wheel 3 and a driven chain wheel 4, the driving chain wheels 3 and the driven chain wheels 4 on the same mounting plate 1 are mutually connected through a driving chain 5, the driving chain wheels 3 on the two mounting plates 1 are mutually connected through a rotating shaft 6, the driving chain wheel 3 on one mounting plate 1 is connected with a driving motor 7, the driving motor 7 is fixed on the mounting plate 1, the driving chain 5 is formed by sequentially connecting clamping chain links 501 and common chain links 502 which are arranged in a staggered mode, and the outer sides of the clamping chain links 501; the clamping device 8 comprises an installation base 801, the lower end of the installation base 801 is connected with a clamping link 501, the upper end of the installation base 801 is provided with a clamping rod 803 through an installation cylinder 802, one end of the clamping rod 803 is provided with a rectangular plate 804, the outer side of the middle part of the clamping rod 803 is provided with a pressure spring 805 positioned in the installation base 801, and the other end of the clamping rod 803 is provided with a permanent magnet 806 positioned on the outer side of the installation base 801; the outer sides of the two ends of the driving chain 5 are respectively provided with a first electromagnet 9 and a second electromagnet 10 along the conveying direction of the driving chain 5, the first electromagnet 9 and the second electromagnet 10 are respectively fixed at the two ends of the mounting plate 1, and a proximity switch 11 matched with the second electromagnet 10 is arranged on the fixed cross beam 2 at one end of the conveying direction of the driving chain 5.
The clamping chain link 501 and the common chain link 502 are arranged in a mode that 1: 2 are connected in sequence in number ratio.
The rectangular plate 804 is provided with a rectangular sleeve 807 positioned outside the installation cylinder 802, and the width of the inner wall of the rectangular sleeve 807 is slightly larger than the diameter of the installation cylinder 802.
The clamping devices 8 on the two side driving chains 5 are symmetrically arranged.
The top of the clamping chain link 501 and the common chain link 502 are both provided with a rubber plate 503.
The working principle of the invention is as follows: the invention drives the driving chain 5 to rotate by the matching of the driving motor 7, the driving chain wheel 3, the driven chain wheel 4 and the rotating shaft 6, and the driving chains 5 on the mounting plates 1 at two sides keep the same rotating speed; when the clamping link 501 on the driving chain 5 rotates to the end part of the mounting plate 1 close to one side of the first electromagnet 9, the permanent magnet 806 on the clamping device 8 can be attracted through the first electromagnet 9, the permanent magnet 806 is made to shrink the rectangular plate 804 after being attracted, so that a user can stably place the PCB on the driving chain 5 after the rectangular plate 804 shrinks, the user can also attach one end of the PCB to the side wall of the expanded rectangular sleeve 807 when placing the PCB, and the positioning accuracy of the convenient chip mounter to the PCB is improved. After the PCB is placed in the driving chain 5, the PCB is driven to move forward through the matching of the driving chain 5 and the rubber plate 503; after the clamping devices 8 on the two sides of the PCB are separated from the range of the first electromagnet 9, the pressure spring 805 pushes the rectangular plate 804 to enable the rectangular plate 804 to transversely position and pre-tighten the PCB, the PCB can be guaranteed to be located in the middle of the conveying device and limited, and stability and mounting effect of the PCB during mounting are improved. When moving, the clamping rod 803 can guide the clamping rod 803 through the matching of the rectangular sleeve 807 and the mounting cylinder 802, so as to ensure the stable extension and retraction of the rectangular plate 804. When the PCB is pasted and mounted and is driven to one end of the driven chain wheel 4 through the driving chain 5, the proximity switch 11 positioned below the PCB is detected and then the second electromagnet 10 is started, the rectangular plates 804 on two sides of the PCB are opened after the second electromagnet 10 is started, so that the PCB can be stably separated from the chip mounter through the driving chain 5, the proximity switch 11 closes the second electromagnet 10 after the PCB is separated, the clamping device 8 is enabled to recover the natural state again, and the conveying work of the PCB is completed.
Claims (5)
1. The utility model provides a PCB board conveyor for chip mounter which characterized in that: the chain transmission mechanism comprises two mounting plates (1) which are arranged side by side, wherein the two mounting plates (1) are mutually connected through a fixed cross beam (2), two ends of each mounting plate (1) are respectively provided with a driving chain wheel (3) and a driven chain wheel (4), the driving chain wheels (3) and the driven chain wheels (4) are mutually connected through a driving chain (5), the driving chain wheels (3) on the two mounting plates (1) are mutually connected through a rotating shaft (6), the driving chain wheel (3) on one mounting plate (1) is connected with a driving motor (7), the driving chain (5) is formed by sequentially connecting clamping chain links (501) and common chain links (502), and the outer sides of the clamping chain links (501) are connected with clamping devices (8); the clamping device (8) comprises an installation base (801), the lower end of the installation base (801) is connected with a clamping chain link (501), the upper end of the installation base (801) is provided with a clamping rod (803) through an installation cylinder (802), one end of the clamping rod (803) is provided with a rectangular plate (804), the outer side of the middle part of the clamping rod (803) is provided with a pressure spring (805) positioned in the installation base (801), and the other end of the clamping rod (803) is provided with a permanent magnet (806) positioned on the outer side of the installation base (801); the outer sides of the two ends of the driving chain (5) are respectively provided with a first electromagnet (9) and a second electromagnet (10) along the conveying direction of the driving chain (5), and a proximity switch (11) matched with the second electromagnet (10) is arranged on the fixed cross beam (2) at one end of the conveying direction of the driving chain (5).
2. The PCB conveying device for the chip mounter according to claim 1, wherein: the clamping chain link (501) and the common chain link (502) are arranged in a mode that the ratio of 1: 2 are connected in sequence in number ratio.
3. The PCB conveying device for the chip mounter according to claim 1, wherein: rectangular sleeve (807) that is located the installation drum (802) outside is equipped with around rectangular plate (804).
4. The PCB conveying device for the chip mounter according to claim 1, wherein: the clamping devices (8) on the driving chains (5) at the two sides are symmetrically arranged.
5. The PCB conveying device for the chip mounter according to claim 1, wherein: rubber plates (503) are arranged at the tops of the clamping chain links (501) and the common chain links (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563106.0A CN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563106.0A CN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108974784A CN108974784A (en) | 2018-12-11 |
| CN108974784B true CN108974784B (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810563106.0A Active CN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
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| Country | Link |
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| CN (1) | CN108974784B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330775B (en) * | 2020-03-26 | 2020-12-18 | 胡鸿韬 | Integrated spraying device for door leaf surface and using method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE258787C (en) * | 1911-11-30 | |||
| DE102011118977A1 (en) * | 2011-11-19 | 2013-05-23 | Robert Bosch Gmbh | conveyor |
| CN203062039U (en) * | 2013-02-04 | 2013-07-17 | 日东电子科技(深圳)有限公司 | PCB positioning and clamping mechanism |
| CN103813645B (en) * | 2014-02-23 | 2018-08-17 | 广东木几智能装备有限公司 | A kind of automatic plate feeding device and control method of high-speed multifunctional SMT chip mounters |
| CN107010401B (en) * | 2017-04-14 | 2022-10-11 | 江苏智子自动化科技有限公司 | PCB clamping and conveying mechanism |
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- 2018-06-04 CN CN201810563106.0A patent/CN108974784B/en active Active
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| Publication number | Publication date |
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| CN108974784A (en) | 2018-12-11 |
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Denomination of invention: PCB board conveying device for chip mounter Effective date of registration: 20211021 Granted publication date: 20200505 Pledgee: Zhejiang Anji Rural Commercial Bank of the West Branch of Limited by Share Ltd. Pledgor: HUZHOU XUYUAN ELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2021330001989 |