技术领域technical field
本发明涉及一种贴片机，特别是一种贴片机用PCB板输送装置。The invention relates to a placement machine, in particular to a PCB board conveying device for a placement machine.
背景技术Background technique
贴片机是一种将PCB板输送到指定位置，再通过移动贴装头把表面贴装元器件准确的放置PCB板上的设备，元器件的贴装位置是影响PCB电路板质量的重要因素。目前的贴片机大多通过输送带的摩擦带动来完成对PCB板的输送工作，但输送带的输送过程中对造成PCB板的相互滑动，影响了PCB板在贴装时的位置精度；并且由于移动贴装头在贴装时会对PCB板施加一定的压力，导致PCB板在受压后会造成输送链的轻微形变，从而使PCB板在贴装时形成抖动和轻微位移，造成PCB板贴装质量的降低。因此，现有贴片机对PCB板的输送方式存在定位精度低、贴装稳定性差的问题。The placement machine is a device that transports the PCB board to the designated position, and then accurately places the surface mount components on the PCB board by moving the placement head. The placement position of the components is an important factor affecting the quality of the PCB circuit board. . Most of the current placement machines complete the delivery of the PCB board through the friction of the conveyor belt, but the mutual sliding of the PCB boards during the conveying process of the conveyor belt affects the position accuracy of the PCB board during placement; and because The mobile placement head will exert a certain pressure on the PCB board during placement, which will cause slight deformation of the conveyor chain after the PCB board is pressed, so that the PCB board will form jitter and slight displacement during placement, resulting in PCB board sticking Decrease in loading quality. Therefore, there are problems of low positioning accuracy and poor placement stability in the way of conveying PCB boards by existing placement machines.
发明内容Contents of the invention
本发明的目的在于，提供一种贴片机用PCB板输送装置。它具有定位精度高、贴装稳定性好的特点。The object of the present invention is to provide a PCB board conveying device for a placement machine. It has the characteristics of high positioning accuracy and good placement stability.
本发明的技术方案：一种贴片机用PCB板输送装置，包括并排设置的两个安装板，两个安装板之间经固定横梁相互连接，每个安装板两端分别设有主动链轮和从动链轮，主动链轮和从动链轮之间经驱动链条相互连接，两个安装板上的主动链轮经转轴相互连接，其中一个安装板上的主动链轮连接有驱动电机，所述驱动链条由夹紧链节和普通链节依次连接而成，夹紧链节外侧连接有夹紧装置；所述夹紧装置包括安装座，安装座下端连接夹紧链节，安装座上端经安装圆筒设有夹紧杆，夹紧杆一端设有矩形板，夹紧杆中部外侧设有位于安装座内的压簧，夹紧杆另一端设有位于安装座外侧的永磁铁；所述驱动链条两端外侧沿驱动链条输送方向分别设有第一电磁铁和第二电磁铁，所述沿驱动链条输送方向一端的固定横梁上设有与第二电磁铁配合的接近开关。The technical solution of the present invention: a PCB board conveying device for a placement machine, including two mounting plates arranged side by side, the two mounting plates are connected to each other through fixed beams, and driving sprockets are respectively provided at both ends of each mounting plate and the driven sprocket, the driving sprocket and the driven sprocket are connected to each other through the driving chain, the driving sprockets on the two mounting plates are connected to each other through the rotating shaft, and the driving sprocket on one of the mounting plates is connected to the driving motor. The drive chain is formed by sequentially connecting clamping chain links and ordinary chain links, and a clamping device is connected to the outside of the clamping chain link; the clamping device includes a mounting seat, the lower end of which is connected to the clamping chain link, and the upper end of the mounting seat The installed cylinder is provided with a clamping rod, one end of the clamping rod is provided with a rectangular plate, the outside of the middle part of the clamping rod is provided with a pressure spring located in the mounting seat, and the other end of the clamping rod is provided with a permanent magnet located outside the mounting seat; A first electromagnet and a second electromagnet are respectively provided outside the two ends of the driving chain along the conveying direction of the driving chain, and a proximity switch cooperating with the second electromagnet is provided on the fixed beam at one end along the conveying direction of the driving chain.
前述的一种贴片机用PCB板输送装置中，所述夹紧链节和普通链节之间按2：1的排列方式依次连接。In the aforementioned PCB board conveying device for a mounter, the clamping chain links and ordinary chain links are sequentially connected in an arrangement of 2:1.
前述的一种贴片机用PCB板输送装置中，所述矩形板四周设有位于安装圆筒外侧的矩形套筒。In the aforementioned PCB board conveying device for a mounter, the rectangular board is surrounded by a rectangular sleeve located outside the mounting cylinder.
前述的一种贴片机用PCB板输送装置中，所述两侧驱动链条上的夹紧装置呈对称设置。In the aforementioned PCB board conveying device for a placement machine, the clamping devices on the drive chains on both sides are arranged symmetrically.
前述的一种贴片机用PCB板输送装置中，所述夹紧链节和普通链节顶部均设有橡胶板。In the aforementioned PCB board conveying device for a placement machine, rubber plates are provided on the tops of the clamping chain link and the ordinary chain link.
与现有技术相比，本发明通过主动链轮、转轴和驱动电机的配合，使两侧安装板上的驱动链条能够以相同转速对PCB板进行输送，通过夹紧链节上的夹紧装置，可以在驱动链条输送时对PCB板的两端进行横向定位和夹紧，从而实现PCB板在输送和贴装时的固定和限位，提高了PCB板的输送精度和贴装稳定性；通过第一电磁铁和永磁铁的配合，可以使夹紧杆在PCB板放置时能够自动张开，使用户能够将PCB板稳定放置在驱动链条上，用户在放置PCB板时还能将PCB板端部与矩形套筒的侧壁相互贴合，使矩形套筒能够对PCB板进行纵向定位，进一步提高了PCB板的输送精度和贴装稳定性；通过第二电磁铁、接近开关和永磁铁的配合，可以使PCB板输送到位时矩形板自动张开，从而使驱动链条能够将PCB板稳定推出，进一步提高了对PCB板的输送稳定性。Compared with the prior art, the present invention enables the driving chains on the mounting plates on both sides to transport the PCB board at the same speed through the cooperation of the driving sprocket, the rotating shaft and the driving motor, and the clamping device on the clamping chain link , the two ends of the PCB board can be laterally positioned and clamped when the drive chain is conveyed, so as to realize the fixation and limit of the PCB board during conveying and mounting, and improve the conveying accuracy and mounting stability of the PCB board; through The cooperation of the first electromagnet and the permanent magnet can make the clamping lever open automatically when the PCB board is placed, so that the user can place the PCB board stably on the drive chain, and the user can also place the PCB board end when placing the PCB board. The upper part and the side wall of the rectangular sleeve fit together, so that the rectangular sleeve can longitudinally position the PCB board, further improving the conveying accuracy and mounting stability of the PCB board; through the second electromagnet, proximity switch and permanent magnet With cooperation, the rectangular board can be automatically opened when the PCB board is transported in place, so that the drive chain can push the PCB board out stably, further improving the stability of the PCB board transport.
此外，本发明通过橡胶板可以增加夹紧链节和PCB板之间的接触面积和摩擦力，从而提高对PCB板的输送稳定性并减小PCB板在贴装时对夹紧链节造成的形变；通过安装圆筒和矩形套筒的配合可以对夹紧杆进行导向，避免夹紧杆在受到侧向力时造成卡滞或偏移的问题，进一步提高了夹紧装置对PCB板的夹紧效果。所以，本发明具有定位精度高、贴装稳定性好的特点。In addition, the present invention can increase the contact area and friction between the clamping chain link and the PCB board through the rubber plate, thereby improving the stability of the delivery of the PCB board and reducing the impact of the PCB board on the clamping chain link during mounting. Deformation; through the cooperation of the installation cylinder and the rectangular sleeve, the clamping rod can be guided to avoid the problem of clamping or offset of the clamping rod when it is subjected to lateral force, and further improve the clamping device's clamping of the PCB board tight effect. Therefore, the present invention has the characteristics of high positioning accuracy and good placement stability.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是夹紧装置的结构示意图；Fig. 2 is the structural representation of clamping device;
图3是图2的A向剖视图。Fig. 3 is a cross-sectional view taken along line A of Fig. 2 .
附图中的标记为：1-安装板，2-固定横梁，3-主动链轮，4-从动链轮，5-驱动链条，6-转轴，7-驱动电机，8-夹紧装置，9-第一电磁铁，10-第二电磁铁，11-接近开关，501-夹紧链节，502-普通链节，503-橡胶板，801-安装座，802-安装圆筒，803-夹紧杆，804-矩形板，805-压簧，806-永磁铁，807-矩形套筒。The marks in the accompanying drawings 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-installation seat, 802-installation cylinder, 803- Clamping rod, 804-rectangular plate, 805-pressure spring, 806-permanent magnet, 807-rectangular sleeve.
具体实施方式Detailed ways
下面结合附图和实施例对本发明作进一步的说明，但并不作为对本发明限制的依据。The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.
实施例。一种贴片机用PCB板输送装置，构成如图1所示，包括并排设置的两个安装板1，两个安装板1之间经固定横梁2相互连接，每个安装板1两端分别转动连接有主动链轮3和从动链轮4，同一安装板1上的主动链轮3和从动链轮4之间经驱动链条5相互连接，两个安装板1上的主动链轮3经转轴6相互连接，其中一个安装板1上的主动链轮3连接有驱动电机7，驱动电机7固定在安装板1上，所述驱动链条5由交错设置的夹紧链节501和普通链节502依次连接而成，夹紧链节501外侧连接有夹紧装置8；所述夹紧装置8包括安装座801，安装座801下端连接夹紧链节501，安装座801上端经安装圆筒802设有夹紧杆803，夹紧杆803一端设有矩形板804，夹紧杆803中部外侧设有位于安装座801内的压簧805，夹紧杆803另一端设有位于安装座801外侧的永磁铁806；所述驱动链条5两端外侧沿驱动链条5输送方向分别设有第一电磁铁9和第二电磁铁10，第一电磁铁9和第二电磁铁10分别固定在安装板1的两端，所述沿驱动链条5输送方向一端的固定横梁2上设有与第二电磁铁10配合的接近开关11。Example. A PCB board conveying device for a placement machine, as shown in Figure 1, including two installation boards 1 arranged side by side, the two installation boards 1 are connected to each other through fixed beams 2, and the two ends of each installation board 1 are respectively The driving sprocket 3 and the driven sprocket 4 are connected in rotation. The driving sprocket 3 and the driven sprocket 4 on the same mounting plate 1 are connected to each other through the driving chain 5. The driving sprocket 3 on the two mounting plates 1 Connected to each other through the rotating shaft 6, the driving sprocket 3 on one of the mounting plates 1 is connected with a driving motor 7, and the driving motor 7 is fixed on the mounting plate 1, and the driving chain 5 is composed of clamping chain links 501 and ordinary chains arranged alternately. The joints 502 are connected sequentially, and the outside of the clamping chain link 501 is connected with a clamping device 8; the clamping device 8 includes a mounting seat 801, the lower end of which is connected to the clamping chain link 501, and the upper end of the mounting seat 801 is passed through the installation cylinder. 802 is provided with a clamping rod 803, one end of the clamping rod 803 is provided with a rectangular plate 804, the outside of the middle part of the clamping rod 803 is provided with a compression spring 805 located in the mounting seat 801, and the other end of the clamping rod 803 is provided with a plate located outside the mounting seat 801. permanent magnet 806; the outer sides of the two ends of the drive chain 5 are respectively provided with a first electromagnet 9 and a second electromagnet 10 along the conveying direction of the drive chain 5, and the first electromagnet 9 and the second electromagnet 10 are respectively fixed on the mounting plate 1, the fixed beam 2 at one end along the conveying direction of the drive chain 5 is provided with a proximity switch 11 that cooperates with the second electromagnet 10 .
所述夹紧链节501和普通链节502之间按2：1的排列方式依次连接。The clamping chain link 501 and the normal chain link 502 are sequentially connected in a 2:1 arrangement.
所述矩形板804四周设有位于安装圆筒802外侧的矩形套筒807，矩形套筒807的内壁宽度略大于安装圆筒802的直径。The rectangular plate 804 is surrounded by a rectangular sleeve 807 located 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 .
所述两侧驱动链条5上的夹紧装置8呈对称设置。The clamping devices 8 on the drive chains 5 on both sides are arranged symmetrically.
所述夹紧链节501和普通链节502顶部均设有橡胶板503。A rubber plate 503 is provided on the top of the clamping chain link 501 and the ordinary chain link 502 .
本发明的工作原理：本发明通过驱动电机7、主动链轮3、从动链轮4和转轴6的配合带动驱动链条5进行转动，并使两侧安装板1上的驱动链条5保持相同转速；当驱动链条5上的夹紧链节501转动至靠近第一电磁铁9一侧的安装板1端部时，通过第一电磁铁9可以对夹紧装置8上的永磁铁806进行吸引，使永磁铁806在受到吸力后对矩形板804进行收缩，从而使用户在矩形板804收缩后能够将对PCB板稳定放置在驱动链条5上，用户在放置PCB板时还可以将PCB板一端与张开后矩形套筒807侧壁贴合，从而完成对方便贴片机对PCB板的定位并提高了其定位精度。PCB板放入驱动链条5后，通过驱动链条5和橡胶板503的配合带动PCB板前进；当PCB板两侧的夹紧装置8脱离第一电磁铁9的范围后，压簧805对矩形板804进行顶推使矩形板804能够对PCB板进行横向定位和预紧，保证PCB板能够处于输送装置的中间位置并对其进行限位，提高PCB板在贴装时的稳定性和贴装效果。夹紧杆803在移动时通过矩形套筒807和安装圆筒802的配合可以对夹紧杆803进行导向，保证矩形板804的伸缩稳定。当PCB板贴装完成并经驱动链条5带动至从动链轮4一端时，位于PCB板下方的接近开关11检测到后开启第二电磁铁10，第二电磁铁10开启后将PCB板两侧的矩形板804张开，使PCB板能够经驱动链条5稳定脱离贴片机，PCB板脱离后接近开关11关闭第二电磁铁10，使夹紧装置8重新恢复自然状态，完成对PCB板的输送工作。Working principle of the present invention: the present invention drives the driving chain 5 to rotate through the cooperation of the driving motor 7, the driving sprocket 3, the driven sprocket 4 and the rotating shaft 6, and keeps the driving chain 5 on the mounting plates 1 on both sides at the same speed When the clamping link 501 on the drive chain 5 rotates to the end of the mounting plate 1 near the first electromagnet 9, the permanent magnet 806 on the clamping device 8 can be attracted by the first electromagnet 9, Make the permanent magnet 806 shrink the rectangular plate 804 after receiving the suction force, so that the user can stably place the PCB board on the drive chain 5 after the rectangular plate 804 shrinks, and the user can also connect one end of the PCB board to the drive chain 5 when placing the PCB board. After being opened, the side walls of the rectangular sleeve 807 fit together, thereby completing the positioning of the PCB board by the convenient placement machine and improving its positioning accuracy. After the PCB board is put into the drive chain 5, the PCB board is driven forward through the cooperation of the drive chain 5 and the rubber plate 503; when the clamping devices 8 on both sides of the PCB board are out of the range of the first electromagnet 9, the compression spring 805 is aligned with the rectangular plate. The 804 pushes the rectangular plate 804 to laterally position and pre-tighten the PCB board to ensure that the PCB board can be placed in the middle of the conveying device and limit it, improving the stability and placement effect of the PCB board during placement . When the clamping rod 803 is moving, the clamping rod 803 can be guided through the cooperation of the rectangular sleeve 807 and the installation cylinder 802, so as to ensure the stretching and stability of the rectangular plate 804. When the PCB board mounting is completed and driven to one end of the driven sprocket 4 by the drive chain 5, the proximity switch 11 located below the PCB board detects and then opens the second electromagnet 10, and the PCB board two The rectangular plate 804 on the side is opened, so that the PCB board can be stably detached from the placement machine through the driving chain 5. After the PCB board is detached, the proximity switch 11 closes the second electromagnet 10, so that the clamping device 8 returns to its natural state, and the PCB board is completed. transport work.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563106.0ACN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563106.0ACN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
| Publication Number | Publication Date |
|---|---|
| CN108974784Atrue CN108974784A (en) | 2018-12-11 |
| CN108974784B CN108974784B (en) | 2020-05-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810563106.0AActiveCN108974784B (en) | 2018-06-04 | 2018-06-04 | PCB conveying device for chip mounter |
| Country | Link |
|---|---|
| CN (1) | CN108974784B (en) |
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| CN111330775A (en)* | 2020-03-26 | 2020-06-26 | 胡鸿韬 | Integrated spraying device for door leaf surface and using method thereof |
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| 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 |
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| GB191126794A (en)* | 1911-11-30 | 1912-11-21 | William Phillips Thompson | Improvements in Feed Apparatus for Linoleum Presses. |
| US8833544B2 (en)* | 2011-11-19 | 2014-09-16 | Robert Bosch Gmbh | Conveying device |
| 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 |
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| CN111330775A (en)* | 2020-03-26 | 2020-06-26 | 胡鸿韬 | Integrated spraying device for door leaf surface and using method thereof |
| CN111330775B (en)* | 2020-03-26 | 2020-12-18 | 胡鸿韬 | Integrated spraying device for door leaf surface and using method thereof |
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