Feeding and board arranging device and corresponding PCB automatic appearance detection equipment

Abstract

The utility model provides a feeding and board arranging device and corresponding PCB automatic appearance detection equipment. The feeding and board arranging device comprises a rack, a positioning frame, a transverse board arranging assembly, a longitudinal board arranging assembly, a lifting driving assembly and a lifting frame, the positioning frame is fixed to the rack, the lifting frame is used for bearing PCBs, and the lifting driving assembly drives the lifting frame to move in the vertical direction so that the PCBs on the lifting frame can be lifted into a board arranging area of the positioning frame. When the lifting frame is located at a low position, a PCB is placed on the lifting frame, the lifting driving assembly drives the lifting frame to ascend, and therefore the PCB can be lifted to a board arranging area, the transverse board arranging assembly, the longitudinal board arranging assembly and the positioning frame are matched to conduct board arranging on the PCB, meanwhile, the PCB is made to be close to the transferring device after being lifted, and feeding of the PCB is completed. After the PCB is lifted, feeding and board arrangement can be realized at the same position, the efficiency is improved, the structure is simplified, and the occupied area of the whole equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of PCB detection equipment, in particular to a whole-board feeding device and corresponding PCB automatic appearance detection equipment. Background Art

[0002] When performing appearance inspection on a PCB, in order to enable the camera device to scan the PCB more accurately to facilitate subsequent appearance inspection, the PCB is usually straightened before passing through the camera device so that it can be placed in a standard position. In the prior art, after the PCB is loaded, the PCB appearance inspection equipment needs to use a transfer device to move the PCB to the whole board device for whole board, and then transfer it again after the whole board is completed, and then scan it through the camera device. The PCB needs to be transferred multiple times, and the process is long, which affects the inspection efficiency. In addition, the loading device and the whole board device are arranged horizontally, and each needs to occupy a certain space, so that the entire PCB appearance inspection equipment occupies a large area. Utility Model Content

[0003] The utility model provides a whole-board feeding device and corresponding PCB automatic appearance detection equipment, which can effectively improve efficiency and reduce floor space.

[0004] The utility model provides a loading and whole-board device, comprising a frame, and a loading and whole-board device, a transfer device, a translation device and a camera device all arranged on the frame.

[0005] The utility model provides a whole-board loading device and a corresponding PCB automatic appearance inspection device. When the lifting frame is at a lower position, the PCBs can be placed in piles on the lifting frame, and the lifting drive assembly drives the lifting frame to rise, so that the PCBs can be lifted into the whole-board area, and the PCBs can be whole-boarded by using the horizontal whole-board assembly, the vertical whole-board assembly and the positioning frame. At the same time, after the PCB is lifted, it is brought close to the transfer device to complete the loading of the PCB, which is convenient for its transfer for the next step. After the PCB is lifted, the loading and whole-board can be realized at the same position, without the need to move the PCB from the loading position to the whole-board structure, thereby improving efficiency, simplifying the structure, and reducing the overall equipment footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A schematic diagram of the structure of a PCB automatic appearance inspection device provided by a preferred embodiment of the utility model;

[0007] Figure 2 yes Figure 1 Structural schematic diagram of the loading and whole board device of the PCB automatic appearance inspection equipment;

[0008] Figure 3 yes Figure 2A schematic diagram of the structure of the positioning frame, the horizontal whole board assembly and the vertical whole board assembly of the middle loading whole board device;

[0009] Figure 4 yes Figure 3 A schematic diagram of the structure of the transverse positioning strip and the first moving mechanism of the middle transverse whole plate assembly;

[0010] Figure 5 yes Figure 4 An exploded schematic diagram of the middle transverse positioning bar and the first moving mechanism;

[0011] Figure 6 yes Figure 3 An exploded schematic diagram of the longitudinal positioning strip and the second moving mechanism of the middle longitudinal whole panel assembly;

[0012] Figure 7 yes Figure 2 A schematic diagram of the structure of the lifting frame and lifting drive assembly of the middle loading whole board device;

[0013] Figure 8 yes Figure 7 An exploded schematic diagram of the middle lifting frame and the lifting drive assembly;

[0014] Fig. 9 It is a structural schematic diagram of another embodiment of the positioning frame provided by the utility model in a whole board state;

[0015] Fig.10 yes Fig. 9 Schematic diagram of the structure of the middle positioning frame in another state. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0017] In the figures, structurally similar elements are denoted by the same reference numerals.

[0018] Please refer to Figure 1The preferred embodiment of the utility model provides an automatic PCB appearance inspection device, which includes a loading and whole board device 100, a transfer device 200, a translation device 300 and a camera device 400. The loading and whole board device 100 is used to receive the PCB and lift and whole the board, the transfer device 200 is used to move the PCB lifted and whole by the loading and whole board device 100 to the translation device 300, the camera device 400 is located directly above the translation device 300, and the translation device 300 is used to drive the PCB to move horizontally so that the camera device 400 can be used to scan and photograph the PCB.

[0019] More specifically, in the present embodiment, the board loading device 100 and the translation device 300 are arranged along the horizontal direction X, the transfer device 200 is arranged along the horizontal direction and is located directly above the board loading device 100 and the translation device 300, and is used to move the PCB lifted and straightened by the board loading device 100 to the translation device 300, the translation device 300 is arranged along the longitudinal direction Y to drive the PCB to move horizontally along the longitudinal direction Y, and the camera device 400 and the transfer device 200 are arranged along the longitudinal direction Y.

[0020] like Figure 2 As shown, the loading and whole-board device 100 includes a frame 9, a positioning frame 1, a horizontal whole-board assembly 2, a vertical whole-board assembly 3, a lifting drive assembly 4 and a lifting frame 5. The positioning frame 1 cooperates with the horizontal whole-board assembly 2 and the vertical whole-board assembly 3 to perform whole-board operation on the PCB in two directions, so that the PCB can be placed in a standard position, which is conducive to the subsequent positioning and appearance inspection of the PCB. The lifting frame 5 is used to carry the PCB, and the user can place the PCB to be inspected on the lifting frame 5. The lifting drive assembly 4 is set on the frame 9 and connected to the lifting frame 5 to drive the lifting frame 5 to lift the PCB to the positioning frame 1 for whole-board operation.

[0021] The positioning frame 1 is fixed to the frame 9, and can be arranged at the top of the frame 9, so that the PCB can be moved away by the transfer device 200 after the whole board is assembled. Here, the positioning frame 1 can be arranged according to the specific structure of the frame 9. The transfer device 200, the translation device 300 and the camera device 400 can all be arranged on the frame 9.

[0022] Combination Figure 2 and Figure 3 As shown, the positioning frame 1 includes a transverse positioning plate 11 and two longitudinal positioning plates 12. The transverse positioning plate 11 is a strip arranged along the transverse direction X, and the two longitudinal positioning plates 12 are arranged along the transverse direction X. Each longitudinal positioning plate 12 is a strip arranged along the longitudinal direction Y. One end of the two longitudinal positioning plates 12 is respectively fixed at the two ends of the transverse positioning plate 11, so that the transverse positioning plate 11 and the two longitudinal positioning plates 12 are connected to form a U-shaped structure, and a whole board area 10 is enclosed between the three for accommodating the PCB for whole board operation.

[0023] The transverse whole board assembly 2 includes a transverse positioning bar 21 and a transverse driving mechanism 22. The transverse positioning bar 21 is a bar arranged along the longitudinal direction Y. The transverse positioning bar 21 is connected to the transverse positioning plate 11 by sliding along the transverse direction X. The transverse driving mechanism 22 is connected to the transverse positioning bar 21 to drive the transverse positioning bar 21 to move along the transverse direction X, so that the transverse positioning bar 21 cooperates with the two longitudinal positioning plates 12 to clamp the PCB in the transverse direction for whole board. When a pile of PCBs needs to be whole boarded, the transverse positioning bar 21 can cooperate with one of the longitudinal positioning plates 12 to clamp the PCB; when two piles of PCBs arranged in the transverse direction need to be whole boarded, the transverse positioning bar 21 is located between the two piles of PCBs, and the two piles of PCBs are clamped and whole boarded with the two longitudinal positioning plates 12 in turn, so as to realize the whole boarding of the two piles of PCBs, which is convenient for the subsequent simultaneous transfer and appearance inspection of the two PCBs.

[0024] The longitudinal whole board assembly 3 includes a longitudinal positioning bar 31 and a longitudinal driving mechanism 32. The longitudinal positioning bar 31 is a bar arranged along the horizontal direction X, and its two ends are respectively slidably connected to the two longitudinal positioning plates 12 along the longitudinal direction Y. The longitudinal driving mechanism 32 is connected to the longitudinal positioning bar 31 to drive the longitudinal positioning bar 31 to move longitudinally, so that the longitudinal positioning bar 31 cooperates with the horizontal positioning plate 11 to clamp the PCB in the longitudinal direction for whole board.

[0025] The lifting frame 5 is used to carry the PCB and is located directly below the whole board area 10 surrounded by the positioning frame 1; the lifting drive assembly 4 is arranged on the frame 9, which is connected to the lifting frame 5 and is used to drive the lifting frame 5 to move along the vertical direction Z to lift the PCB on the lifting frame 5 to the whole board area 10 surrounded by the positioning frame 1. The lifting drive assembly 4 is located at one end of the longitudinal positioning plate 12 away from the transverse positioning plate 11, and its structural layout is reasonable, which is convenient for the assembly of various components on the frame 9.

[0026] When the lifting frame 5 is at a lower position, the user can manually or use other tools to place the PCBs in piles on the lifting frame 5. Multiple PCBs can be stacked on the lifting frame 5. Larger PCBs can be stacked in one pile on the lifting frame, while smaller PCBs can be stacked in two piles, and the two piles of PCBs are arranged horizontally. The lifting drive assembly 4 drives the lifting frame 5 to rise, so that the PCB can be lifted to the whole board area surrounded by the positioning frame 1, and the PCB is whole boarded by the horizontal whole board assembly 2 and the vertical whole board assembly 3. At the same time, after the PCB is lifted, it is close to the transfer device 200 to complete the loading of the PCB, so that it is convenient to transfer it for the next operation.

[0027] If the whole pile of PCBs is high, that is, there are many PCBs in one pile, after the PCBs are lifted, the top several PCBs are located in the whole board area, and the PCBs in this area are firstly whole-boarded. After completion, the whole-boarded PCBs are moved away, and then the lifting frame 5 is raised to move the lower PCBs to the whole board area for whole-boarding, and then they are moved away after whole-boarding, and so on, and the whole pile of PCBs are whole-boarded and transferred.

[0028] After the PCB is lifted, loading and whole board can be realized at the same position, without the need to move the PCB from the loading position to the whole board structure. Moreover, more PCBs can be placed on the lifting frame at one time, which improves efficiency, simplifies the structure and reduces the overall equipment footprint.

[0029] In this embodiment, Figure 3 As shown, the transverse positioning bar 21 is connected to the transverse driving mechanism 22 via a first moving mechanism 23. Figure 4 , Figure 5 As shown, the first moving mechanism 23 includes a first moving block 231 and a first buffer assembly 230. The first buffer assembly 230 includes a first buffer plate 232, a first buffer spring 233, a first buffer block 234 and a first guide rod 235. The first buffer block 234 is connected to the first moving block 231 through the first buffer spring 233 and the first buffer plate 232, and the first guide rod 235 is used to make the first moving block 231 and the first buffer block 234 slide relative to each other stably. The first moving block 231 and the first buffer block 234 are respectively connected to the horizontal driving mechanism 22 and the horizontal positioning bar 21 to provide buffering when clamping the entire PCB to avoid damaging the PCB.

[0030] The first moving block 231 is connected to the transverse driving mechanism 22, and the transverse driving mechanism 22 can drive the first moving block 231 to move transversely, thereby causing the first moving mechanism 23 to move transversely together with the transverse positioning bar 21. The first moving block 231 is slidably connected to the transverse positioning plate 11 to ensure the stability of the first moving block 231 in transverse movement. A sliding mechanism of a slider and a guide rail can be set between the first moving block 231 and the transverse positioning plate 11 to ensure the stability of the relative movement between the two.

[0031] There are two first buffer plates 232 arranged opposite to each other in the transverse direction and fixed to the first moving block 231. The first guide rod 235 and the first buffer block 234 are both located between the two first buffer plates 232. There are two first guide rods 235 arranged in the longitudinal direction. The axial direction of each first guide rod 235 is transverse, and the two ends are respectively fixedly connected to the two first buffer plates 232. Two linear bearings are fixed on the first buffer block 234, and the two linear bearings are respectively slidably matched with the two first guide rods 235. The linear bearings are used to achieve the stability of the first buffer block 234 sliding in the transverse direction. The transverse positioning strip 21 is connected to the first buffer block 234, which can ensure that the transverse positioning strip 21 will not tilt during the whole board process. Both ends of each first guide rod 235 are sleeved with a first buffer spring 233, that is, there are four first buffer springs 233. The two ends of the first buffer spring 233 are elastically abutted against the first buffer plate 232 and the first buffer block 234, respectively, for providing a buffering force between the first moving block 231 and the first buffer block 234.

[0032] When the transverse positioning bar 21 moves laterally and abuts against the PCB under the drive of the transverse driving mechanism 22, the transverse positioning bar 21 acts on the first buffer block 234, the first buffer block 234 moves relative to the first moving block 231 and the first buffer plate 232, and the first buffer spring 233 is compressed. The deformation of the first buffer spring 233 is used to achieve a buffering effect on the transverse positioning bar 21 to avoid damaging the PCB.

[0033] like Figure 5 As shown, a plurality of positioning holes 210 are provided on the transverse positioning strip 21 along its length direction, and an adjustment slot 2341 and an adjustment hole 2342 are provided on the first buffer block 234. The adjustment slot 2341 is a long strip that passes through the first buffer block 234 in the longitudinal direction, and the transverse positioning strip 21 is adjustably mounted on the adjustment slot 2341 in the longitudinal direction. The adjustment hole 2342 is provided in the vertical direction and communicated with the adjustment slot 2341. The first moving mechanism 23 also includes a positioning pin 236, which slides vertically through the adjustment hole 2342 and extends into a positioning hole 210.

[0034] When the whole board is being assembled, the position of the transverse positioning bar 21 can be adjusted according to the longitudinal length of the PCB to avoid interference between the transverse positioning bar 21 and the longitudinal positioning bar 31. When adjusting, the positioning pin 236 is pulled out from the positioning hole 210, and the transverse positioning bar 21 is moved longitudinally to align another positioning hole 210 with the adjustment hole 2342, and the positioning pin 236 is inserted into the positioning hole 210 to achieve adjustment of the transverse positioning bar 21.

[0035] The adjustment groove 2341 is located at the bottom surface of the first buffer block 234, so as to clamp the transverse positioning strip 21 between the first buffer block 234 and the first moving block 231. Here, in another embodiment, the adjustment groove 2341 may also be a hole-shaped hole arranged along the longitudinal direction, and the positioning pin 236 may be threadedly connected with the positioning hole 210 to lock the first buffer block 234 and the transverse positioning strip 21, so as to facilitate the simultaneous movement of the two.

[0036] The first moving block 231 includes a first top plate 2311 and a first vertical plate 2312. The first top plate 2311 is horizontally arranged and clamped and fixed between the two first buffer plates 232. The top end of the first vertical plate 2312 is fixedly connected to the bottom surface of the first top plate 2311, and the two are in a T-shaped structure. The bottom ends of the two first buffer plates 232 are connected to the top ends of the first vertical plates 2312, so that the two first buffer plates 232 are connected to the first top plate 2311 and the first vertical plates 2312 at the same time, thereby improving the connection stability. The first vertical plate 2312 is parallel to the transverse positioning plate 11, and one side of the first vertical plate 2312 is slidably connected to the transverse positioning plate 11 through the cooperation of the slider and the slide rail to ensure the stability of the first moving block 231 in the transverse movement.

[0037] like Figure 3 As shown, the transverse driving mechanism 22 is located on the side of the transverse positioning plate 11 away from the longitudinal positioning plate 12 to avoid affecting the PCB inside. The transverse driving mechanism 22 includes a transverse motor 221, a transverse transmission belt 222 and two transverse transmission wheels 223. The two transverse transmission wheels 223 are arranged in the transverse direction, and are both rotatably connected to the transverse positioning plate 11, and the rotating shafts are both vertical; the transverse motor 221 is transmission-connected to a transverse transmission wheel 223; and the transverse transmission belt 222 is sleeved outside the two transverse transmission wheels 223. The transverse transmission belt 222 is connected to the first vertical plate 2312 of the first moving block 231. The flexibility of the transverse transmission belt 222 can further play a buffering role in the movement of the transverse positioning strip 21. The side belt of the transverse transmission belt 222 away from the transverse positioning plate 11 is connected to the other side of the first vertical plate 2312, and the first vertical plate 2312 is located at the inner side of the transverse transmission belt 222, which can facilitate the connection between the first vertical plate 2312 and the transverse transmission belt 222. Both sides of the first vertical plate 2312 cooperate with the transverse positioning plate 11 and the transverse transmission belt 222 respectively, and the structure layout is compact and occupies little space.

[0038] Combination Figure 3 and Figure 6As shown, the longitudinal positioning bar 31 is connected to the longitudinal driving mechanism 32 through the longitudinal moving mechanism 33. The longitudinal moving mechanism 33 includes a moving member 331 and a second buffer assembly 330. The moving member 331 includes a linkage bar 3311 and two second moving blocks 3312. The linkage bar 3311 is arranged in the horizontal direction, and its two ends are fixedly connected to the two second moving blocks 3312 respectively. The two second moving blocks 3312 are slidably connected to the two longitudinal positioning plates 12, and one of the second moving blocks 3312 is connected to the longitudinal driving mechanism 32 to move longitudinally under the drive of the longitudinal driving mechanism 32. The second moving block 3312 is slidably connected to the side of the longitudinal positioning plate 12 away from the whole board area 10 to avoid interference with the PCB.

[0039] There are two second buffer components 330, which are respectively arranged at both ends of the linkage bar 3311. Each second buffer component 330 includes a second buffer plate 332, a second buffer spring 333, a second buffer block 334 and a second guide rod 335. The second buffer block 334 is connected to the second moving block 3312 through the second buffer spring 333 and the second buffer plate 332, and the second moving block 3312 and the second buffer block 334 are relatively stable in sliding through the second guide rod 335. The second moving block 3312 and the second buffer block 334 are respectively connected to the longitudinal driving mechanism 32 and the longitudinal positioning bar 31 to provide buffering when clamping the entire PCB to avoid damaging the PCB.

[0040] The longitudinal driving mechanism 32 can drive a second moving block 3312 to move horizontally, thereby making the longitudinal moving mechanism 33 move longitudinally together with the longitudinal positioning bar 31. The second moving block 3312 is slidably connected to the longitudinal positioning plate 12 to ensure the stability of the second moving block 3312 moving longitudinally.

[0041] In each second buffer assembly 330, there are two second buffer plates 332 arranged opposite to each other in the longitudinal direction and fixed to the second moving block 3312. The second guide rod 335 and the second buffer block 334 are both located between the two second buffer plates 332. There are two second guide rods 335, which are arranged in the transverse direction. The axial direction of each second guide rod 335 is longitudinal, and the two ends are respectively fixedly connected to the two second buffer plates 332. Two linear bearings are fixed on the second buffer block 334, which are respectively slidably matched with the two second guide rods 335 to achieve the stability of the second buffer block 334 sliding in the longitudinal direction. Both ends of each second guide rod 335 are sleeved with second buffer springs 333, that is, there are four second buffer springs 333. The two ends of the second buffer spring 333 are elastically abutted against the second buffer plate 332 and the second buffer block 334, respectively, for providing a buffering force between the second moving block 3312 and the second buffer block 334.

[0042] The second buffer blocks 334 of the two second buffer assemblies 330 are respectively connected to the two ends of the longitudinal positioning strip 31. The two ends of the longitudinal positioning strip 31 are respectively connected to the two second buffer blocks 334, which can ensure that the longitudinal positioning strip 31 will not tilt during the whole board process. The longitudinal positioning strip 31 and the two second buffer blocks 334 can be integrally formed to facilitate processing and preparation.

[0043] When the longitudinal positioning bar 31 moves longitudinally and abuts against the PCB under the drive of the longitudinal driving mechanism 32, the two ends of the longitudinal positioning bar 31 act on the two second buffer blocks 334 respectively, the second buffer blocks 334 move relative to the second moving block 3312, and the second buffer spring 333 is compressed. The deformation of the second buffer spring 333 is used to achieve a buffering effect on the longitudinal positioning bar 31 to avoid damaging the PCB.

[0044] The second moving block 3312 is located on the side of the longitudinal positioning plate 12 away from the whole plate area 10, and includes a second top plate 33121 and a second vertical plate 33122. The top of the second vertical plate 33122 is fixedly connected to the bottom surface of the second top plate 33121, forming a T-shaped structure. The second top plate 33121 is clamped and fixed between the two second buffer plates 332. The bottom ends of the two second buffer plates 332 are connected to the top ends of the second vertical plates 33122, so that the two second buffer plates 332 are connected to the second top plate 33121 and the second vertical plates 33122 at the same time, thereby improving the connection stability. The second top plates 33121 of the two second moving blocks 3312 are integrally formed with the linkage strip 3311 to improve the connection strength and facilitate assembly.

[0045] The second vertical plate 33122 is parallel to the longitudinal positioning plate 12, and the opposing surfaces of the second vertical plate 33122 and the longitudinal positioning plate 12 are slidably connected via the cooperation of the slider and the slide rail to ensure the stability of the second moving block 3312 in the longitudinal movement.

[0046] like Figure 3As shown, the longitudinal drive mechanism 32 is located on the side of a longitudinal positioning plate 12 away from the other longitudinal positioning plate 12 to avoid affecting the PCB on the inside. The longitudinal drive mechanism 32 includes a longitudinal motor 321, a longitudinal transmission belt 322 and two longitudinal transmission wheels 323. The two longitudinal transmission wheels 323 are arranged along the longitudinal direction Y, and are both rotatably connected to the longitudinal positioning plate 12, and the rotation axes are both vertical Z; the longitudinal motor 321 is transmission-connected to a longitudinal transmission wheel 323; the longitudinal transmission belt 322 is sleeved outside the two longitudinal transmission wheels 323. The longitudinal transmission belt 322 is connected to the second vertical plate 33122 of the second moving block 3312. The flexibility of the longitudinal transmission belt 322 can further play a buffering role in the movement of the longitudinal positioning strip 31. The side belt of the longitudinal transmission belt 322 away from the longitudinal positioning plate 12 is connected to the second moving block 3312, which can facilitate the connection between the second vertical plate 33122 and the longitudinal transmission belt 322. The two sides of the second vertical plate 33122 are respectively connected with the longitudinal positioning plate 12 and the longitudinal transmission belt 322, and the structure is compact and occupies little space.

[0047] like Figure 7 , Figure 8 As shown, the lifting frame 5 includes a linkage plate 51 and a plurality of support arms 52, wherein the plurality of support arms 52 are arranged at intervals in the transverse direction, and each support arm 52 is extended in the longitudinal direction, and one end thereof away from the transverse positioning plate 11 is fixedly connected to the linkage plate 51, and one end thereof close to the transverse positioning plate 11 is suspended in the air. The plurality of support arms 52 can support the PCB and reduce the contact area with the PCB, thereby reducing the wear on the PCB. The linkage plate 51 can connect the plurality of support arms 52 into an integral structure.

[0048] The lifting drive assembly 4 includes a support frame 41, a panel 42, a lifting motor 43, a ball screw 44 and a lifting plate 45. The support frame 41 is fixed to the frame 9 to provide support for the entire lifting drive assembly 4. The lifting motor 43 is fixed to the support frame 41 and is connected to the lifting plate 45 through the ball screw 44 to drive the lifting plate 45 to move vertically. The panel 42 is vertically fixed to the support frame 41, and the ball screw 44 and the lifting plate 45 are both located on the side of the panel 42 away from the linkage plate 51. The panel 42 can be used to separate the main components of the lifting drive assembly 4 from the lifting frame 5 and the PCB to avoid affecting the lifting and moving of the PCB.

[0049] The two support arms 52 located at the two lateral ends of the lifting frame 5 are respectively fixed at the two lateral end surfaces of the linkage plate 51, and are respectively fixed at the two lateral end surfaces of the lifting plate 45. The linkage plate 51 and the lifting plate 45 are both clamped and fixed between the two support arms 52 at the two ends to achieve the connection between the lifting frame 5 and the lifting drive assembly 4; at the same time, the panel 42 is located between the linkage plate 51 and the lifting plate 45, which can isolate the two and ensure the simplicity and flatness of the lifting drive assembly 4 facing the PCB.

[0050] The support frame 41 includes an upper plate 411, a lower plate 412, a back plate 413 and two side plates 414. The back plate 413 is arranged vertically, parallel to the panel 42, and fixedly connected to the frame 9. The upper plate 411 and the lower plate 412 are respectively fixed at the vertical ends of the back plate 413. The two side plates 414 are parallel to each other, respectively arranged at the horizontal sides of the back plate 413, and fixedly connected to the back plate 413. The vertical ends of the side plates 414 are respectively fixed to the upper plate 411 and the lower plate 412, and the vertical ends of the panel 42 are respectively fixed to the upper plate 411 and the lower plate 412. The support frame 41 and the panel 42 can be enclosed to form a square cavity structure to accommodate structures such as the ball screw 44. The side plates 414 and the panel 42 are spaced apart so that the horizontal sides of the lifting plate 45 can extend from the gap between the side plates 414 and the panel 42, so as to facilitate the connection with the lifting frame 5. The lifting motor 43 is fixed to the lower plate 412, and the ball screw 44 is arranged vertically, and its two ends are rotatably connected to the upper plate 411 and the upper plate 411 respectively. The support frame 41 can facilitate the arrangement of the lifting motor 43, the ball screw 44 and other mechanisms.

[0051] Two sets of guide mechanisms (not shown in the figure) can be arranged between the lifting plate 45 and the back plate 413. The two sets of guide mechanisms are arranged laterally on both sides of the ball screw 44 to ensure the stability and balance of the lifting plate 45 in the vertical movement.

[0052] like Figure 6 As shown, a plurality of vertical bars 310 are arranged on one side of the longitudinal positioning bar 31 facing the transverse positioning bar 21, and the plurality of vertical bars 310 are arranged at intervals in the transverse direction for contacting with the PCB. Each vertical bar 310 is arranged vertically, and its bottom end extends to the bottom of the longitudinal positioning bar 31. When the lifting frame 5 moves upward to the whole board area 10 surrounded by the positioning frame 1, the bottom end of the vertical bar 310 extends to the gap between the plurality of support arms 52. The plurality of vertical bars 310 can be used to position the stacked plurality of PCBs at the same time, thereby increasing the number of PCBs positioned at one time and improving efficiency. By cross-coordinating the plurality of vertical bars 310 with the lifting arm, the PCB in contact with the support arm 52 can also be well positioned, and interference between the lifting frame 5 and the longitudinal positioning bar 31 can be avoided.

[0053] like Figure 4 , Figure 5 As shown, a plurality of positioning blocks 215 are arranged at the bottom of the transverse positioning strip 21, and the plurality of positioning blocks 215 are arranged at intervals along the longitudinal direction. Figure 8As shown, the top surface of the support arm 52 is provided with a plurality of avoidance grooves 520, each avoidance groove 520 corresponds to the position of the positioning block 215, and when the lifting frame 5 moves upward to the space surrounded by the positioning frame 1, the positioning block 215 can be located in the avoidance groove 520. The use of the positioning block 215 can also increase the number of PCBs in a stack that can be positioned at one time, and the PCBs in contact with the support arm 52 can also be better positioned.

[0054] In order to facilitate placing the PCB on the lifting frame 5, the PCB automatic appearance inspection device may also include a cart (not shown in the figure), on which a load frame is fixed, and the structure of the load frame may be similar to that of the lifting frame. The load frame includes a plurality of load arms, which are arranged at intervals in the transverse direction and are used to place the PCB to be inspected. Each load arm is extended in the longitudinal direction, one end of which is fixed to the cart and the other end is suspended.

[0055] like Figure 1 As shown, the frame 9 is provided with a receiving cavity 90 for receiving the cart. When the cart is pushed into the receiving cavity 90 in the longitudinal direction, the support arm 52 is inserted into the gap between the adjacent bearing arms. The top surface of the support arm 52 is lower than the bottom surface of the bearing arm, so that the support arm 52 can be located below the PCB. When the support arm 52 is lifted so that its top surface is higher than the top surface of the bearing arm, the top surface of the support arm 52 contacts the PCB to lift the PCB, and the PCB is separated from the bearing arm to transfer the PCB from the cart to the lifting frame 5. The user can load the PCB onto the bearing frame of the cart at a suitable position. When the lifting frame 5 is at the lowest position, the cart is pushed into the receiving cavity 90 of the frame 9 in the longitudinal direction and positioned. Multiple support arms 52 and multiple bearing arms are inserted into the corresponding gaps with each other, and the lifting frame 5 is lifted, so that the PCB can be removed from the cart. It is convenient to use and can realize the rapid loading of multiple PCBs.

[0056] like Figure 1 As shown, the transfer device 200 includes a lateral moving component 201, a lifting component 202, and a grabbing component 203. The grabbing component 203 is provided with a plurality of suction nozzles for grabbing the PCB at the top of the lifting frame 5. The lifting component 202 is connected to the grabbing component 203 and is used to drive the grabbing component 203 to move along the vertical direction Z, so that the grabbing component 203 is close to or away from the lifting frame 5 along the vertical direction Z. The lateral moving component 201 is provided on the frame 9, and is connected to the lifting component 202 to drive the lifting component 202 to move along the lateral direction X, so that the grabbing component 203 moves between the upper part of the whole board loading device and the upper part of the translation device 300, thereby moving the PCB to the translation device 300.

[0057] The translation device 300 is located on one side of the loading and whole board device 100 in the horizontal direction X, and is arranged along the longitudinal direction Y, and is used to drive the PCB to move horizontally along the longitudinal direction Y. In this embodiment, the translation device 300 is a conveyor belt mechanism, and a plurality of buffer holes are arranged on the conveyor belt to prevent the PCB from drifting when placed thereon. The camera device 400 is located directly above the translation device 300, and is used to shoot the PCB on the translation device 300.

[0058] The camera device 400 and the transfer device 200 are arranged along the longitudinal direction Y, so that the entire device structure is compact and the overall volume and floor space are reduced.

[0059] In order to prevent the shaped PCB from abutting against the transverse positioning plate 11 and the longitudinal positioning plate 12 and affecting the lifting frame 5 to further lift the PCB, the transverse positioning plate 11 and the longitudinal positioning plate 12 in the positioning frame are further improved.

[0060] like Fig. 9 and Fig.10 As shown, the transverse positioning plate 11 includes a transverse fixed plate 111 and a transverse movable plate 112. The transverse fixed plate 111 is fixedly arranged, and the transverse fixed plate 111 is fixedly connected to the longitudinal positioning plate 12, or is fixedly connected to the frame 9, or is connected to other fixed parts. The transverse fixed plate 111 and the transverse movable plate 112 are arranged in parallel, and both are perpendicular to the longitudinal direction Y. The transverse movable plate 112 is movably connected to the transverse fixed plate 111 along the longitudinal direction Y, and is close to the center of the whole board area 10 relative to the transverse fixed plate 111. The transverse movable plate 112 has a first longitudinal position and a second longitudinal position on the movable track. In the longitudinal direction Y, the first longitudinal position is close to the center of the whole board area 10 relative to the second longitudinal position.

[0061] The longitudinal positioning plate 12 includes a longitudinal fixed plate 121 and a longitudinal movable plate 122. The longitudinal fixed plate 121 is fixedly arranged, and the longitudinal fixed plate 121 is fixedly connected to the transverse fixed plate 111, or fixedly connected to the frame 9, or connected to other fixed components. The longitudinal fixed plate 121 and the longitudinal movable plate 122 are arranged in parallel, and both are perpendicular to the transverse direction X. The longitudinal movable plate 122 is movably connected to the longitudinal fixed plate 121 along the transverse direction X, and is close to the center of the whole board area 10 relative to the longitudinal fixed plate 121. The longitudinal movable plate 122 has a first transverse position and a second transverse position on the movable track. In the transverse direction X, the first transverse position is close to the center of the whole board area 10 relative to the second transverse position.

[0062] like Fig. 9As shown, when the longitudinal positioning strip 31 moves longitudinally and cooperates with the transverse positioning plate 11 to perform board assembly, the transverse movable plate 112 is located at the first longitudinal position, so that the transverse movable plate 112 is located at a position relatively far away from the transverse fixed plate 111; when the transverse positioning strip 21 cooperates with the longitudinal positioning plate 12 to perform board assembly, the longitudinal movable plate 122 is located at the first transverse position, so that the longitudinal movable plate 122 is located at a position relatively far away from the longitudinal fixed plate 121. When performing board assembly, the area of ​​the board assembly region 10 is relatively small, and the transverse movable plate 112 and the longitudinal movable plate 122 are used to contact and position the PCB.

[0063] When the lifting frame 5 moves vertically, Fig.10 As shown, the transverse movable plate 112 is located at the second longitudinal position, and the longitudinal movable plate 122 is located at the second transverse position, that is, the transverse movable plate 112 is located near the transverse fixed plate 111, and the longitudinal movable plate 122 is located near the longitudinal fixed plate 121, so that the area of ​​the whole board area 10 surrounded by the transverse positioning plate 11 and the two longitudinal positioning plates 12 is larger. After placing multiple stacked PCBs on the lifting frame 5, when the lifting frame 5 is lifted so that the PCBs are raised to the area inside the positioning frame 1, it is convenient for the lifting frame 5 to drive the PCBs to be lifted and lowered, and the friction between the PCBs and the transverse positioning plate 11 and the longitudinal positioning plate 12 is avoided to cause damage to the PCBs. After the PCB is straightened, the transverse movable plate 112 moves to the second longitudinal position close to the transverse fixed plate 111, and the longitudinal movable plate 122 moves to the second transverse position close to the longitudinal fixed plate 121, so that the transverse movable plate 112 and the longitudinal movable plate 122 are respectively separated from the PCB, thereby avoiding contact between the PCB and the positioning frame 1; when the PCB is transferred away by the transfer device 200, and when the lifting frame 5 further lifts the PCB, it can avoid that the PCB is scratched by the positioning frame 1 and causes the PCB to shift.

[0064] The relative movement between the transverse movable plate 112 and the transverse fixed plate 111 , and between the longitudinal movable plate 122 and the longitudinal fixed plate 121 can be achieved by cylinders, or can be driven by other linear drive mechanisms.

[0065] In this embodiment, the transverse fixed plate 111 and the transverse movable plate 112 are connected by a first driving assembly 113, and the first driving assembly 113 includes a first cylinder 1131, a first connecting rod 1132 and two first movable rods 1133. The first cylinder 1131 is fixed to the side of the transverse fixed plate 111 away from the whole plate area 10, and the two first movable rods 1133 are arranged along the transverse X. The axial direction of each first movable rod 1133 is the longitudinal direction Y, and it is slidably penetrated through the transverse fixed plate 111 along the longitudinal direction, one end of which is fixedly connected to the transverse movable plate 112, and the other end is fixedly connected to the first connecting rod 1132. The piston rod of the first cylinder 1131 is connected to the first connecting rod 1132 to drive the first connecting rod 1132 to move in the longitudinal direction. The first connecting rod 1132 drives the two first movable rods 1133 and the transverse movable plate 112 to move in the longitudinal direction at the same time. The two first movable rods can ensure the stability of the movement of the transverse movable plate 112. When the transverse movable plate 112 is located at the first longitudinal position, the transverse movable plate 112 and the transverse fixed plate 111 are spaced apart; when the transverse movable plate 112 is located at the second longitudinal position, the transverse movable plate 112 and the transverse fixed plate 111 are fitted together to make the structure compact.

[0066] The longitudinal fixed plate 121 and the longitudinal movable plate 122 are connected by a second driving assembly 123, and the second driving assembly 123 includes a second cylinder 1231, a second connecting rod 1232 and two second movable rods 1233. The second cylinder 1231 is fixed to the side of the longitudinal fixed plate 121 that is away from the whole plate area 10, and the two second movable rods 1233 are arranged in the transverse direction. The axial direction of each second movable rod 1233 is transverse, and it is slidably arranged in the transverse direction through the longitudinal fixed plate 121, one end of which is fixedly connected to the longitudinal movable plate 122, and the other end is fixedly connected to the second connecting rod 1232. The piston rod of the second cylinder 1231 is connected to the second connecting rod 1232 to drive the second connecting rod 1232 to move in the transverse direction. The second connecting rod 1232 drives the two second movable rods 1233 and the longitudinal movable plate 122 to move in the longitudinal direction at the same time. The two second movable rods 1233 can ensure the stability of the movement of the longitudinal movable plate 122. When the longitudinal movable plate 122 is located at the first horizontal position, the longitudinal movable plate 122 and the longitudinal fixed plate 121 are spaced apart; when the longitudinal movable plate 122 is located at the second horizontal position, the longitudinal movable plate 122 and the longitudinal fixed plate 121 are fitted together to make the structure compact.

[0067] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A whole board loading device, characterized in that: It includes a frame, a positioning frame, a horizontal whole board assembly, a vertical whole board assembly, a lifting drive assembly and a lifting frame; The positioning frame is fixed to the frame, and includes a transverse positioning plate and two longitudinal positioning plates, wherein the transverse positioning plate is a strip arranged in the transverse direction, and the two longitudinal positioning plates are arranged in the transverse direction, and each longitudinal positioning plate is a strip arranged in the longitudinal direction, and one end of the two longitudinal positioning plates is respectively fixed at the two ends of the transverse positioning plate, and the three of them enclose a whole board area; The transverse whole board assembly includes a transverse positioning bar and a transverse driving mechanism, wherein the transverse positioning bar is a bar arranged in the longitudinal direction, and the transverse positioning bar is connected to the transverse positioning plate in a transverse sliding manner, and the transverse driving mechanism is connected to the transverse positioning bar to drive the transverse positioning bar to move in the transverse direction, thereby making the transverse positioning bar cooperate with the two longitudinal positioning plates to clamp the PCB in the transverse direction for whole board; The longitudinal whole board assembly includes a longitudinal positioning bar and a longitudinal driving mechanism. The longitudinal positioning bar is a bar arranged in the transverse direction, and its two ends are respectively connected to the two longitudinal positioning plates in a longitudinal sliding manner. The longitudinal driving mechanism is connected to the longitudinal positioning bar, so that the longitudinal positioning bar moves in the longitudinal direction, and then the longitudinal positioning bar cooperates with the transverse positioning plates to clamp the PCB in the longitudinal direction for whole board. The lifting frame is used to carry the PCB and is located directly below the whole board area; the lifting drive assembly is arranged on the frame and is connected to the lifting frame, and is used to drive the lifting frame to move vertically to lift the PCB on the lifting frame to the whole board area.

2. The whole plate loading device according to claim 1, characterized in that: The longitudinal positioning bar is connected to the longitudinal driving mechanism through a longitudinal moving mechanism; the longitudinal moving mechanism includes a moving member and a second buffer assembly, the moving member includes a linkage bar and two second moving blocks, the linkage bar is arranged in the transverse direction, and its two ends are respectively fixedly connected to the two second moving blocks; the two second moving blocks are respectively slidably connected to the two longitudinal positioning plates, and one of the second moving blocks is connected to the longitudinal driving mechanism to move in the longitudinal direction under the drive of the longitudinal driving mechanism; There are two second buffer components, which are respectively arranged at the two ends of the linkage bar; each second buffer component includes a second buffer plate, a second buffer spring, a second buffer block and a second guide rod; in each second buffer component, there are two second buffer plates arranged opposite to each other in the longitudinal direction and fixed to the second moving block; there are two second guide rods, which are arranged in the transverse direction; the axial direction of each second guide rod is longitudinal, and the two ends are respectively fixedly connected to the two second buffer plates; the second buffer block is slidably matched with the two second guide rods; the two ends of each second guide rod are sleeved with a second buffer spring, and the two ends of the second buffer spring are respectively elastically abutted against the second buffer plate and the second buffer block, so as to provide a buffering force between the second moving block and the second buffer block; The second buffer blocks of the two second buffer components are respectively connected to two ends of the longitudinal positioning strip.

3. The whole plate loading device according to claim 2, characterized in that: The second movable block is located on the side of the longitudinal positioning plate away from the whole plate area, and includes a second top plate and a second vertical plate. The top end of the second vertical plate is fixedly connected to the bottom surface of the second top plate, and the two form a T-shaped structure; the second top plate is clamped and fixed between the two second buffer plates, and the second vertical plate is parallel to the longitudinal positioning plate. The opposite surfaces of the second vertical plate and the longitudinal positioning plate are slidably connected through the cooperation of a slider and a slide rail.

4. The whole plate loading device according to claim 1, characterized in that: The transverse positioning bar is connected to the transverse driving mechanism through a first moving mechanism; the first moving mechanism includes a first moving block and a first buffer assembly; the first moving block is connected to the transverse driving mechanism, the first buffer assembly includes a first buffer plate, a first buffer spring, a first buffer block and a first guide rod; the first buffer plates are two transversely arranged opposite to each other and fixed to the first moving block; the first guide rod and the first buffer block are both located between the two first buffer plates; there are two first guide rods, arranged longitudinally, the axial direction of each first guide rod is transverse, and the two ends are respectively fixedly connected to the two first buffer plates; the first buffer block is slidably matched with the two first guide rods, the transverse positioning bar is connected to the first buffer block, and the two ends of each first guide rod are sleeved with a first buffer spring, and the two ends of the first buffer spring are elastically abutted against the first buffer plate and the first buffer block respectively, for providing a buffering force between the first moving block and the first buffer block.

5. The whole plate loading device according to claim 4, characterized in that: The transverse positioning strip is provided with a plurality of positioning holes along its length direction, and the first buffer block is provided with an adjustment slot and an adjustment hole, wherein the adjustment slot is a long strip that penetrates the first buffer block in the longitudinal direction, and the transverse positioning strip is adjustably installed in the adjustment slot in the longitudinal direction; the adjustment hole is arranged in the vertical direction and is connected to the adjustment slot; the first moving mechanism also includes a positioning pin, which slides vertically through the adjustment hole and extends into one of the positioning holes.

6. The whole plate loading device according to claim 4, characterized in that: The first moving block includes a first top plate and a first vertical plate; the first top plate is horizontally arranged and clamped and fixed between the two first buffer plates; the top end of the first vertical plate is fixedly connected to the bottom surface of the first top plate, and the two are in a T-shaped structure; the bottom ends of the two first buffer plates are connected to the top end of the first vertical plate, the first vertical plate is parallel to the horizontal positioning plate, and one side of the first vertical plate is slidably connected to the horizontal positioning plate through the cooperation of a slider and a slide rail; The transverse driving mechanism is located on the side of the transverse positioning plate away from the longitudinal positioning plate, and the transverse driving mechanism includes a transverse motor, a transverse transmission belt and two transverse transmission wheels; the two transverse transmission wheels are arranged in a transverse direction, are rotatably connected to the transverse positioning plate, and the rotating shafts are both vertical; the transverse motor is transmission-connected to one of the transverse transmission wheels, and the transverse transmission belt is sleeved on the outside of the two transverse transmission wheels; the side belt of the transverse transmission belt away from the transverse positioning plate is connected to the other side of the first vertical plate, and the first vertical plate is located on the inner side of the transverse transmission belt.

7. The whole plate loading device according to claim 1, characterized in that: The lifting frame includes a linkage plate and a plurality of support arms, wherein the plurality of support arms are arranged at intervals in the transverse direction, and each support arm is extended in the longitudinal direction, and one end thereof away from the transverse positioning plate is fixedly connected to the linkage plate, and one end thereof close to the transverse positioning plate is suspended; A plurality of vertical bars are arranged on one side of the longitudinal positioning bar facing the transverse positioning bar, and the plurality of vertical bars are arranged at intervals in the transverse direction for contacting with the PCB; each of the vertical bars is arranged in the vertical direction, and its bottom end extends to the bottom of the longitudinal positioning bar; When the lifting frame moves upward to the whole panel area, the bottom end of the vertical bar extends into the gap between the plurality of support arms.

8. The whole plate loading device according to claim 7, characterized in that: A plurality of positioning blocks are arranged at intervals along the longitudinal direction at the bottom of the transverse positioning strip; a plurality of air avoidance grooves are arranged on the top surface of the support arm, each of the air avoidance grooves corresponds to the position of the positioning block, and when the lifting frame moves upward to the whole board area, the positioning block can be located in the air avoidance groove.

9. The whole plate loading device according to claim 1, characterized in that: The transverse positioning plate includes a transverse fixed plate and a transverse movable plate; the transverse fixed plate is fixedly arranged, the transverse fixed plate is arranged in parallel with the transverse movable plate, both of which are perpendicular to the longitudinal direction, the transverse movable plate is movably connected to the transverse fixed plate along the longitudinal direction, and is close to the center of the entire board area relative to the transverse fixed plate, and the transverse movable plate has a first longitudinal position and a second longitudinal position on the movable track, and in the longitudinal direction, the first longitudinal position is close to the center of the entire board area relative to the second longitudinal position; The longitudinal positioning plate includes a longitudinal fixed plate and a longitudinal movable plate; the longitudinal fixed plate is fixedly arranged, the longitudinal fixed plate is arranged in parallel with the longitudinal movable plate, both of which are perpendicular to the horizontal direction, the longitudinal movable plate is movably connected to the longitudinal fixed plate along the horizontal direction, and is close to the center of the entire board area relative to the longitudinal fixed plate, the longitudinal movable plate has a first horizontal position and a second horizontal position on the movable track, and in the horizontal direction, the first horizontal position is close to the center of the entire board area relative to the second horizontal position; When the longitudinal positioning strip moves longitudinally and cooperates with the transverse positioning plate to perform panel alignment, the transverse movable plate is located at the first longitudinal position; when the transverse positioning strip cooperates with the longitudinal positioning plate to perform panel alignment, the longitudinal movable plate is located at the first transverse position; When the lifting frame moves in the vertical direction, the transverse movable plate is located at the second longitudinal position, and the longitudinal movable plate is located at the second transverse position.

10. A PCB automatic appearance inspection device, characterized in that: It comprises the whole plate loading device as described in any one of claims 1-9.

Images