PCB board and elastic clamping tooling assembly system

Abstract

The invention discloses a PCB board and elastic clamping tool assembly system, comprising: an assembly mechanism, used for assembling tool and PCB board; a tool feeding mechanism, used for feeding a stack of tool to be fed to the assembly mechanism one by one; a PCB feeding mechanism, used for transporting the stack of PCB boards to be fed to a designated position; a PCB transporting mechanism, used for transferring the whole stack of PCB boards from the designated position to the assembly mechanism one by one. The system can realize the assembly of PCB board and tool, and can be automatically connected with an automatic production line to realize automatic production; moreover, it can solve the problem that in the operation process of manually opening a spring clamping positioning pin of a stress clamping tool and then putting the PCB board into the tool, it is difficult for the manual operator to operate the stress clamping tool and it is difficult for the manual operator to put the PCB board into the tool due to the existence of spring stress.

Description

Technical Field

[0001] The invention relates to the field of PCB manufacturing, and in particular to an assembly system of a PCB board and an elastic clamping tool. Background Art

[0002] At present, most PCB boards in SMT (Surface Mount Technology) automatic production lines are assembled with fixtures (tooling) and flow into the production line together. In order to solve the problem of automated production and feeding of PCB fixtures in the front-end production line of SMT, the elastic clamping tooling needs to manually open the spring clamping positioning pins and then put them into the PCB board, and then the PCB board is fixed by the spring positioning pins. During this operation, it is difficult for humans to operate the stress clamping tooling and it is difficult for humans to put the PCB board into the elastic clamping tooling due to the spring stress. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a PCB board and elastic clamping tooling assembly system in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve the technical problem is: constructing a PCB board and elastic clamping tooling assembly system, including:

[0005] An assembly mechanism, used for assembling a tooling and a PCB board, comprising: a carrying platform capable of carrying the tooling, a horizontal telescopic mechanism, and an opening and closing mechanism, wherein after the tooling is mounted on the carrying platform, the tooling cooperates with a group of elastic clamping structures on the tooling, and can drive the group of elastic clamping structures to be pulled apart under the action of the horizontal telescopic mechanism so as to place the PCB board on the tooling, and can drive the group of elastic clamping structures to be brought together under the action of the horizontal telescopic mechanism after the PCB board is placed so as to clamp the PCB board;

[0006] A tool feeding mechanism, used for feeding a stack of tools to be fed one by one to the assembly mechanism;

[0007] PCB loading mechanism, used to transport a stack of PCB boards to be loaded to a designated location;

[0008] The PCB conveying mechanism is used to transfer the entire stack of PCB boards one by one from the designated position to the assembly mechanism.

[0009] Preferably, each of the tooling has flanges on both sides, and the tooling feeding mechanism comprises:

[0010] A tooling conveying mechanism, used to convey the tooling dropped thereon to an assembly mechanism;

[0011] A set of material blocking mechanisms, which can be brought together and pulled apart by horizontal extension and retraction, and the flanges on both sides of the last tool in the stack of tooling are respectively placed on the set of material blocking mechanisms;

[0012] A supporting mechanism is located below the entire stack of tooling and can be lifted and lowered in the vertical direction, wherein the height difference between the supporting mechanism and the entire stack of tooling is greater than the height difference between the tooling conveying mechanism and the entire stack of tooling. The supporting mechanism can lift the entire stack of tooling until the last tooling leaves the blocking mechanism so that the group of blocking mechanisms can be pulled apart; and lower the entire stack of tooling to allow the group of blocking mechanisms to move closer together and extend between the flanges on both sides of the last and second tooling, thereby allowing the second to last tooling to be placed on the group of blocking mechanisms and the last to last tooling to fall onto the tooling conveying mechanism after the supporting mechanism is reset.

[0013] Preferably, the material supporting mechanism comprises a material supporting cylinder and a group of material receiving cylinders, wherein the group of material receiving cylinders are respectively located on the left and right sides of the material supporting cylinder, and the material supporting cylinders can extend to lift the entire stack of tooling until the last tooling leaves the material blocking mechanism; the group of material receiving cylinders can extend and retract to lower the entire stack of tooling; and the group of material receiving cylinders can be retracted to achieve resetting.

[0014] Preferably, the tooling conveying mechanism comprises a group of first rails, a group of tooling conveying belts, and a blocking positioning cylinder arranged in parallel, and the group of tooling conveying belts are correspondingly installed on the group of first rails;

[0015] The assembly mechanism, the blocking and positioning cylinder, the material supporting cylinder and a group of material receiving cylinders are all located between the group of tooling conveyor belts. The blocking and positioning cylinder is arranged behind the assembly mechanism and can block the tooling on the belt above the assembly mechanism after being extended. The material supporting cylinder and a group of material receiving cylinders are located in front of the assembly mechanism. The blocking and positioning cylinder can initially position the tooling on the belt above the assembly mechanism when extended.

[0016] Preferably, the tooling conveying mechanism further comprises a flow channel width adjustment mechanism, which is simultaneously connected to the group of first rails and can adjust the spacing between the group of first rails by telescopic movement.

[0017] Preferably, the assembly mechanism also includes a support platform and upper and lower cylinders, the bearing platform is placed on the support platform, the upper and lower cylinders are located below the support platform, the support platform is provided with windows for the upper and lower cylinders to pass through, and the upper and lower cylinders can lift the bearing platform off the support platform so that the tooling located above it falls onto the bearing platform.

[0018] Preferably, the top of the carrying platform is used to place the tooling, the horizontal telescopic mechanism includes an opening and closing cylinder arranged below the carrying platform, a slide rail is arranged at the bottom of the carrying platform, the opening and closing mechanism includes a group of clamping arms corresponding to the group of elastic clamping structures, the clamping arms cooperate with the slide rails, the clamping arms have a limiting portion located at the side of the carrying platform, and the limiting portion is provided with an elastic clamping positioning pin that cooperates with the corresponding elastic clamping structure;

[0019] When the horizontal telescopic mechanism is extended, it can push the group of clamping arms to slide and pull apart, so as to drive the group of elastic clamping structures to pull apart; when the horizontal telescopic mechanism is retracted, it can pull the group of clamping arms to slide and return to the position where the limiting part abuts against the side of the supporting platform, so as to drive the group of elastic clamping structures to return to the closed state to clamp the PCB board.

[0020] Preferably, sliding grooves are provided at both ends of the tooling, and the elastic clamping positioning pin passes through the sliding groove and cooperates with the corresponding elastic clamping structure. When the set of clamping arms slides, the elastic clamping positioning pin can slide in the sliding groove.

[0021] Preferably, the PCB feeding mechanism comprises: a group of second rails arranged in parallel, a group of feeding cylinders correspondingly installed on the group of second rails, a vertically liftable lifting mechanism, a lateral positioning cylinder, and a lateral positioning cylinder;

[0022] The last PCB board in the whole stack of PCB boards is placed on the group of feeding cylinders and can be moved to the top of the lifting mechanism as the group of feeding cylinders extend; the lifting mechanism can lift the whole stack of PCB boards located above it; the lateral positioning cylinder and the transverse positioning cylinder are located on two adjacent sides above the lifting mechanism, and are used to extend simultaneously after the whole stack of PCB boards is lifted so as to position the PCB boards and wait for the PCB conveying mechanism to pick up the boards.

[0023] Preferably, the PCB transport mechanism comprises: a third track, a moving module, a slide cylinder, a vacuum generating device, and a vacuum suction cup controlled by the vacuum generating device;

[0024] The moving module is installed on the third track and can slide along the third track between above the PCB feeding mechanism and above the assembly mechanism. The slide cylinder and the vacuum generating device are installed on the moving module. The vacuum suction cup is installed on the slide cylinder. The vacuum suction cup can move up and down in the vertical direction as the slide cylinder is extended and retracted, so that when the moving module moves above the PCB feeding mechanism, it can suck up a top PCB board from the entire stack of PCB boards by descending and rise after sucking the PCB board.

[0025] The PCB board and elastic clamping tool assembly system of the present invention has the following beneficial effects: the system can realize the assembly of the PCB board and the tool, and can be automatically docked with the automatic production line to realize automatic production; moreover, after the tool is mounted on the carrier, the opening and closing mechanism cooperates with a group of elastic clamping structures on the tool, and can drive the group of elastic clamping structures to be pulled apart under the action of the horizontal telescopic mechanism so as to place the PCB board on the tool, and after the PCB board is placed, the group of elastic clamping structures can be driven together under the action of the horizontal telescopic mechanism to clamp the PCB board, thereby solving the problem that it is difficult to manually operate the stress clamping tool during the operation of manually opening the spring clamping positioning pin and then placing the PCB board, and it is difficult to manually place the PCB board into the tool due to the spring stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0027] Figure 1 It is a structural schematic diagram of a specific embodiment of the PCB board and elastic clamping tooling assembly system of the present invention;

[0028] Figure 2 It is a structural diagram of the assembly mechanism;

[0029] Figure 3 It is an exploded view of the assembly mechanism.

[0030] Figure 4 It is a structural diagram of the tooling feeding mechanism;

[0031] Figure 5 yes Figure 4 A magnified image of area A;

[0032] Figure 6 It is a structural diagram of the PCB feeding mechanism;

[0033] Figure 7 It is a structural diagram of the PCB conveying mechanism; DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Typical embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] Terms including ordinal numbers such as "first" and "second" used in this specification may be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the present invention, the first component may be named as the second component, and similarly, the second component may also be named as the first component.

[0038] refer to Figure 1 The PCB board and elastic clamping tooling assembly system of this embodiment includes: an assembly mechanism 4 for assembling the PCB board and the tooling, a tooling loading mechanism 1 for loading a stack of tooling to be loaded one by one to the assembly mechanism 4, a PCB loading mechanism 2 for transporting the stack of PCB boards to be loaded to a designated position, and a PCB transporting mechanism 3 for transferring the entire stack of PCB boards from the designated position to the assembly mechanism 4 one by one.

[0039] like Figure 1 As shown, in this embodiment, the entire system is placed on a frame 5, the tooling feeding mechanism 1 and the assembly mechanism 4 are in the same straight line, and the assembly mechanism 4 is approximately located behind the tooling feeding mechanism 1. The PCB feeding mechanism 2 is approximately arranged side by side with the tooling feeding mechanism 1, and the PCB conveying mechanism 3 is located above the PCB feeding mechanism 2 and the assembly mechanism 4.

[0040] refer to Figure 2-3 The assembly mechanism 4 of this embodiment includes: a bearing platform 41, a supporting platform 44, an upper and lower cylinder 145, a horizontal telescopic mechanism 42, and an opening and closing mechanism 43.

[0041] The carrier platform 41 can carry the stress clamping tool 100. Specifically, the carrier platform 41 is a horizontal platform, and the top of the carrier platform 41 is used to place the stress clamping tool 100. The top of the carrier platform 41 is provided with a tool positioning pin 411 for positioning the stress clamping tool 100 and a PCB board positioning pin 412 for positioning the PCB board 200. The tool 100 and the PCB board 200 are both provided with positioning holes that cooperate with the tool positioning pin 411. In addition, the tool 100 and the PCB board 200 are also provided with positioning holes that cooperate with the PCB board positioning pin 412.

[0042] The left and right ends of the tooling 100 have a group of elastic clamping structures (not shown), and the group of elastic clamping structures are arranged relatively to each other. After the tooling 100 is placed on the carrier 41, the opening and closing mechanism 43 will cooperate with the group of elastic clamping structures on the tooling 100, and can drive the group of elastic clamping structures to be pulled apart under the action of the horizontal telescopic mechanism 42 so as to place the PCB board 200 on the tooling 100, and after the PCB board 200 is placed, the group of elastic clamping structures can be driven together under the action of the horizontal telescopic mechanism 42 to clamp the PCB board 200.

[0043] In this embodiment, the horizontal telescopic mechanism 42 includes an opening and closing cylinder disposed below the support platform 41. The opening and closing mechanism 43 includes a group of clamping arms corresponding to the group of elastic clamping structures, and the group of clamping arms are disposed opposite to each other.

[0044] The clamping arm is provided with an elastic clamping locating pin 431 that cooperates with the corresponding elastic clamping structure, and the group of clamping arms is connected to the bearing platform 41 and is relatively slidably arranged. Specifically, a slide rail is provided at the bottom of the bearing platform 41, and the horizontal part of the clamping arm cooperates with the slide rail. The clamping arm has a vertically arranged limiting portion located at the side of the bearing platform 41, and the elastic clamping locating pin 431 is vertically arranged on the limiting portion. The left and right ends of the tooling 100 are provided with sliding grooves to provide space for the elastic clamping locating pin 431 to move. When the tooling 100 is not placed, the limiting portion of the clamping arm abuts against the side of the bearing platform 41. When the tooling 100 is placed, the elastic clamping locating pin 431 on the limiting portion passes through the sliding groove on the tooling 100 and cooperates with the corresponding elastic clamping structure on the tooling 100 (not shown in the figure). When the group of clamping arms slides, the elastic clamping locating pin 431 can slide in the sliding groove.

[0045] The extension of the opening and closing cylinder can push the set of clamping arms to slide and open, so as to drive the set of elastic clamping structures to open. When the opening and closing cylinder is retracted, it can pull the set of clamping arms to slide and reset to close together, so as to drive the set of elastic clamping structures to reset to a closed state to clamp the PCB board 200. At the same time, the clamping arms are reset to the position where the limiting part abuts against the side of the bearing platform 41.

[0046] In this embodiment, the support platform 44 can be used to place the bearing platform 41. The support platform 44 is specifically similar to the structure of a table, with four pillars 441. The upper and lower cylinders 145 are located below the bearing platform 41. The upper and lower cylinders 145 are specifically located below the support platform 44. The support platform 44 is provided with a window for the upper and lower cylinders 145 to pass through. The upper and lower cylinders 145 can pass through the window to lift the bearing platform 41 off the support platform 44 and put the bearing platform 41 back on the support platform 44. After the upper and lower cylinders 145 are lifted up, the bearing platform 41 can be lifted up off the support platform 44, so that the tooling 100 located above the entire assembly mechanism 4 falls onto the bearing platform 41. The guide column 47 passes through the support platform 44 and is connected to the bearing platform 41. The guide column 47 is used to ensure the stable vertical movement of the upper and lower cylinders 145.

[0047] refer to Figure 4-5 The tooling loading mechanism 1 is used to load a stack of tools 100 one by one, specifically, to separate the tools 100 from the bottom of the stack of tools 100 one by one to achieve loading. Figure 2 Each of the tooling 100 has flanges 101 on its left and right sides.

[0048] The loading mechanism in this embodiment includes: a tool conveying mechanism for transporting the tooling dropped thereon to the assembly mechanism 4, a tooling material bin, a group of material blocking mechanisms that can be extended and retracted in the horizontal plane, a material supporting mechanism that can be raised and lowered in the vertical direction, and a sensor 19.

[0049] Specifically, the tooling conveying mechanism includes a set of first rails 11 arranged in parallel, a set of tooling conveying belts 13, and a blocking positioning cylinder 112 (the blocking positioning cylinder 112 is as shown in FIG. Figure 2 , 3 As shown in the figure, the group of conveyor belts 13 are installed correspondingly on the inner side of the group of first rails 11. The so-called inner side of the first rail 11 refers to the inner side of the first rail 11 relative to the other first rail 11. The conveyor belt 13 is driven by a conveyor belt motor 17. The running direction of the conveyor belt 13 is consistent with the length of the first rail 11. The tooling 100 finally falls on the conveyor belt 13 and enters the next process, that is, reaches the assembly mechanism 4.

[0050] The projections of the assembly mechanism 4 and the blocking positioning cylinder 112 are located between the projections of the group of tooling conveyor belts 13. The blocking positioning cylinder 112 is arranged behind the assembly mechanism 4 and close to the assembly mechanism 4. The blocking positioning cylinder 112 can extend to preliminarily position the tooling 100 on the belt 13 above the assembly mechanism 4.

[0051] In order to facilitate the limiting of the whole stack of tooling 100, in this embodiment, a group of tooling guide limit plates 12 are installed on the group of first rails 11. The tooling guide limit plates 12 are vertically arranged on the first rails 11, and a group of tooling guide limit plates 12 are arranged opposite to each other. A tooling material bin is formed between the group of tooling guide limit plates 12, so that a group of tooling guide limit plates 12 are separated on the left and right sides of the whole stack of tooling 100.

[0052] The group of material-blocking mechanisms can be brought together and apart by horizontal extension and retraction, and the flanges 101 on both sides of the last tooling 100 in the stack of tooling 100 are placed on the group of material-blocking mechanisms respectively. Specifically, the group of material-blocking mechanisms includes a group of material-blocking cylinders 14 correspondingly installed on the group of first rails 11, that is, a material-blocking cylinder 14 is installed on each first rail 11, and a baffle matching the flange 101 of the tooling 100 can be designed to support the flange 101 of the tooling 100, and the thickness of the baffle is less than the spacing between the flanges 101 of the two stacked tools 100, and then the baffle is connected to the material-blocking cylinder 14, and the material-blocking cylinder 14 can drive the baffle to extend and retract.

[0053] Among them, the supporting mechanism is located below the stack of tooling 100 and can be raised and lowered in the vertical direction. The height difference between the supporting mechanism and the stack of tooling 100 is greater than the height difference between the conveying mechanism and the stack of tooling 100. The supporting mechanism can lift the stack of tooling 100 until the last tooling 100 leaves the blocking mechanism so that the group of blocking mechanisms can be pulled apart; and lower the stack of tooling 100 to allow the group of blocking mechanisms to move closer and extend between the flanges 101 on both sides of the last and second tooling 100, so that after the supporting mechanism is reset, the last tooling 100 is placed on the group of blocking mechanisms and the last tooling 100 falls into the conveying mechanism in the flow channel.

[0054] In this embodiment, the material supporting mechanism includes a material supporting cylinder 16 and a group of material receiving cylinders 15, the projections of the material supporting cylinder 16 and the group of material receiving cylinders 15 are located between the projections of the group of conveyor belts 13, and the material supporting cylinder 16 and the group of material receiving cylinders 15 are located in front of the assembly mechanism 4, at a certain distance from the assembly mechanism 4. The material supporting cylinder 16 and the group of material receiving cylinders 15 are also located below the stacked tooling 100, and the group of material receiving cylinders 15 are respectively located on the left and right sides of the material supporting cylinder 16. Of course, a pallet of a suitable size can also be designed to be connected to the material supporting cylinder 16, and the pallet can be used to support the tooling 100. Similarly, a pallet of a suitable size can also be designed to be connected to the material receiving cylinder 15. During the loading process, the supporting cylinder 16 extends to lift the entire stack of tooling 100 until the last tooling 100 leaves the material blocking mechanism; the group of receiving cylinders 15 extends and the supporting cylinder 16 retracts to lower the entire stack of tooling 100; the group of receiving cylinders 15 retracts to achieve resetting.

[0055] Of course, in other embodiments, the supporting mechanism may also be an electric cylinder instead of the three air cylinders in this embodiment, and the electric cylinder can accurately control its rising position and lowering position.

[0056] In order to connect with the SMT automatic line to realize automated production, preferably, the tooling feeding mechanism 1 also includes a sensor 19 arranged in front of the tooling conveying mechanism, which is used to sense whether the tooling 100 is separated from the belt 13. After the sensor 19 senses that the tooling 100 is separated from the conveyor belt 13, the conveyor belt 13 is automatically connected to the automatic production line to realize automated production.

[0057] In this embodiment, the tooling 100 needs to fall onto a set of conveyor belts 13 after being separated, so the spacing between a set of first rails 11 is related to the size of the tooling 100. Preferably, in order to adapt to tooling 100 of different sizes, in this embodiment, the feeding mechanism further includes a flow channel width adjustment mechanism, which is connected to the set of first rails 11 at the same time and can adjust the spacing between the set of first rails 11 through telescopic movement.

[0058] Specifically, a slide rail 110 can be designed, and the slide rail 110 is placed vertically with the group of first rails 11. The group of first rails 11 are fixed on the slide rail 110 through brackets, and the conveyor belt motor 17 is also fixed on the bracket. The bracket can slide on the slide rail 110, and the flow channel width adjustment mechanism includes a motor 17, which is simultaneously connected to the bracket on the same slide rail 110. The distance between the brackets can be adjusted by the motor 17, and then the spacing of the group of first rails 11 can be adjusted, so that it can be suitable for tooling 100 of different sizes. In addition, the supporting cylinder 16 and a group of receiving cylinders 15 can also be set on another slide rail 11. When the spacing between the first rails 11 is adjusted, the position of the supporting cylinder 16 and a group of receiving cylinders 15 on the slide rail 11 can also be adjusted.

[0059] refer to Figure 6 The PCB feeding mechanism 2 includes: a set of second rails 21 arranged in parallel, a set of feeding cylinders 23 correspondingly installed on the set of second rails 21, a PCB material bin composed of a set of PCB guide limit plates 22, a lateral positioning cylinder 29, a lateral positioning cylinder 27, a brush 28, and a vertically lifting mechanism. The lifting mechanism specifically includes a lifting motor 24 and a lifting plate 25, and the motor 24 drives the lifting plate 25 to move up and down.

[0060] The second rail 21 is arranged parallel to the first rail 11. In this embodiment, in order to facilitate the positioning of the entire stack of PCB boards 200, a group of PCB guide limit plates 22 are installed on the group of second rails 21. The PCB guide limit plates 22 are vertically arranged on the two rails 21. A group of PCB guide limit plates 22 are arranged opposite to each other. A PCB material bin for accommodating PCB boards is formed between the PCB guide limit plates 22. In this way, the PCB guide limit plates 22 are separated on the left and right sides of the entire stack of PCB boards 200.

[0061] The feed cylinder 23 can be extended and retracted along the direction of the track 21. The last PCB board in the whole stack of PCB boards is placed on the group of feed cylinders. The whole stack of PCB boards can be moved to the top of the lifting mechanism as the group of feed cylinders are extended, that is, moved to the top of the lifting plate 25. The motor 24 drives the lifting plate 25 to lift the whole stack of PCB boards.

[0062] In this embodiment, a table-like bracket is arranged behind the PCB silo, and a lateral positioning cylinder 29 and a brush 28 are installed on the right side frame of the bracket parallel to the track 21, and a transverse positioning cylinder 27 is installed on the front side frame of the bracket perpendicular to the track 21. The lateral positioning cylinder 29 and the transverse positioning cylinder 27 are located on two adjacent sides above the lifting mechanism. The lateral positioning cylinder 29 and the transverse positioning cylinder 27 are used to extend simultaneously after the whole stack of PCB boards is lifted up so as to position the PCB boards and wait for the PCB conveying mechanism 3 to take the boards. Among them, the brush 28 is used to peel off the first PCB board and the second PCB board when taking the boards.

[0063] Preferably, in order to adapt to different PCB board sizes, the rails 21 are connected by adjusting the guide rail 210, and the adjusting guide rail 210 is vertically connected to the two rails 21 at the same time. There are multiple installation positions on the guide rail 210, and the rail 21 on the right side can be moved to a suitable installation position for fixing. Correspondingly, the front and rear side frames of the bracket (the side frame on which the lateral positioning cylinder 27 is installed and the other side frame opposite thereto) are also designed to have a structure similar to the guide rail 210, so as to achieve the spacing adjustment of the left and right side frames of the bracket.

[0064] refer to Figure 7 The PCB transport mechanism 3 in this embodiment includes: a third track 31, a moving module 39, a module motor 32, a slide cylinder 34, a vacuum generating device 33, and a vacuum suction cup 36 controlled by the vacuum generating device 33.

[0065] The third track 31 is perpendicular to the first track 11 and the second track 21. The mobile module 39 is mounted on the third track 31 and can slide between above the PCB feeding mechanism 2 and above the assembly mechanism 4 along the third track 31 under the drive of the module motor 32. The slide cylinder 34 and the vacuum generating device 33 are mounted on the mobile module 39 and can move with the sliding of the mobile module 39. The vacuum suction cup 36 is mounted on the slide cylinder 34 and can move up and down in the vertical direction with the extension and retraction of the slide cylinder 34, so that when the mobile module 39 moves to above the PCB feeding mechanism 2, it can suck the top PCB board 200 from the whole stack of PCB boards 200 by descending and rise after sucking the PCB board 200.

[0066] A laser displacement sensor 35 is fixed on the slide cylinder 34 to help detect the distance between the vacuum suction cup 36 and the PCB board 200, so as to accurately control the rise and fall of the vacuum suction cup 36.

[0067] Among them, the air pipe and control line of the vacuum generating device 33 , the air pipe of the slide cylinder 34 , and the line of the sensor 35 are all protected by the drag chain 38 .

[0068] The working process of this embodiment is as follows:

[0069] 1) Tool loading: Tool loading mechanism 1 realizes the loading of the whole stack of tools one by one, refer to Figure 4-5 , the tooling 100 is fixedly guided for the stacking material through the tooling guide limit plate 12, and the tooling 100 is supported by the material blocking cylinder 14 to prevent it from falling. The material supporting cylinder 16 extends to lift the whole stack of tooling 100 and separate it from the material blocking cylinder 14, so that there is a certain gap between the last tooling 100 and the material supporting cylinder 16, and the material blocking cylinder 14 retracts. At this time, there is no friction between the material blocking cylinder 14 and the tooling 100, and no wear is caused to the tooling 100; the material receiving cylinder 15 extends, and then the material supporting cylinder 16 retracts, and the material receiving cylinder 15 receives the whole stack of tooling 100 to realize the lowering of the whole stack of tooling 100; the material blocking cylinder 14 extends to between the flanges 101 of the penultimate and second-to-last tooling 100, at which time there is no friction between the material blocking cylinder 14 and the tooling 100; the material receiving cylinder 15 retracts, and the material blocking cylinder 14 holds the penultimate tooling 100. The penultimate tooling 100 is brought into the conveyor belt 13 as the material receiving cylinder 15 retracts, and the belt 13 moves the tooling 100 closer to the assembly mechanism 4, and the blocking positioning cylinder 112 extends to block the tooling 100 from continuing to move with the belt 13, thereby preliminarily positioning the tooling 100, so that the tooling 100 on the belt 13 is positioned above the entire assembly mechanism 4.

[0070] 2) PCB board loading: PCB loading mechanism 2 transports the entire stack of PCB boards to the designated location, refer to Figure 6 The PCB board 200 is fixedly guided for stacking by the PCB guide limit plate 22, and the whole stack of PCB boards 200 is transported to the top of the lifting plate 25 by the feeding cylinder 23. The lifting motor 24 drives the lifting plate 25 to push the whole stack of PCB boards 200 to the required height. The lateral positioning cylinder 29 and the transverse positioning cylinder 27 are extended at the same time to position the PCB board 200, waiting for the PCB conveying mechanism 3 to take the board.

[0071] 3) PCB board transportation: The PCB conveying mechanism 3 transports the PCB boards in the PCB feeding mechanism 2 to the assembly mechanism 4 one by one to form a whole with the tooling. Figure 7 The mobile module 39 is driven by the lead screw of the motor 32 to move on the third track 31 to the top of the PCB feeding mechanism 2, and then the slide cylinder 34 descends, the vacuum generating device 33 is started, and the vacuum suction cup 36 sucks the first PCB board, the brush 28 will peel the top PCB board from the second PCB, and the slide cylinder 34 rises again, and the mobile module 39 moves to the top of the assembly mechanism 4.

[0072] 4) Assembly of tooling and pre-PCB: Assembly mechanism 4 realizes the assembly of tooling and PCB board, refer to Figure 2-3The opening and closing cylinder is in a retracted state, the limiting portion of the clamping arm abuts against the side of the carrying platform 41, and the upper and lower cylinders 145 extend out to lift the carrying platform 41 so that the tooling 100 located above the entire assembly mechanism 4 falls onto the carrying platform 41. After the tooling 100 is placed on the carrying platform 41, the tooling locating pins 411 of the carrying platform 41 cooperate with the locating holes corresponding to the stress clamping tooling 100 to position the tooling, and the PCB board locating pins 412 of the carrying platform 41 pass through the corresponding locating holes of the tooling 100. At the same time, the elastic clamping locating pins 431 on the limiting portion of the clamping arm pass through the sliding groove on the tooling and cooperate with the corresponding elastic clamping structure on the tooling; then the opening and closing cylinder extends out to push the clamping arm to slide and pull it apart, that is, the elastic clamping locating pins 431 on the two clamping arms are relatively pulled apart, thereby driving the group of elastic clamping structures to pull apart. After pulling apart, the slide cylinder 34 descends to place the PCB board above the tooling , the vacuum generating device 33 stops working, the PCB board is peeled off from the vacuum suction cup 36, and the PCB board is placed on the tooling, and the PCB board positioning pin 412 of the carrier 41 successively passes through the positioning hole corresponding to the stress clamping tooling 100 and the positioning hole corresponding to the PCB board, so as to position the PCB board. In addition, the tooling positioning pin 411 successively passes through the positioning hole corresponding to the stress clamping tooling 100 and the positioning hole corresponding to the PCB board; the opening and closing cylinder retracts to pull the group of clamping arms to reset to the position where the limit part and the side of the carrier 41 are abutted, and at the same time drives the elastic clamping structure to reset to the close state to clamp the PCB board; the blocking positioning cylinder 112 retracts, the upper and lower cylinders 145 retract, and the tooling 100 and the PCB board flow into the SMT section production line, realizing automatic positioning and opening and closing of the stress clamping tooling 100. This mechanism can be well connected with the automatic production line for automatic production.

[0073] In summary, this embodiment has the following beneficial effects:

[0074] 1) It can realize the automatic assembly of the tooling pre-PCB, and can solve the problem that it is difficult to manually operate the stress clamping tooling during the operation of manually opening the spring clamping positioning pin and then putting it into the PCB board, and it is difficult to manually put the PCB board into the tooling due to the spring stress.

[0075] 2) It can realize automatic loading of tooling and PCB boards without causing wear to the tooling and PCB boards. It can adapt to tooling and PCB boards of different sizes. At the same time, it can detect whether the tooling is separated to the flow channel and connect with the SMT automatic line to realize automated production.

[0076] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A PCB board and elastic clamping tooling assembly system, characterized in that: include: An assembly mechanism, used for assembling a tool and a PCB board, comprising: a carrying platform capable of carrying the tool, a horizontal telescopic mechanism, and an opening and closing mechanism, wherein the tool is mounted on the carrying platform and cooperates with a group of elastic clamping structures on the tool, and can drive the group of elastic clamping structures to be pulled apart under the action of the horizontal telescopic mechanism so as to place the PCB board on the tool, and can drive the group of elastic clamping structures to be brought together under the action of the horizontal telescopic mechanism after the PCB board is placed so as to clamp the PCB board; A tool feeding mechanism, used for feeding a stack of tools to be fed one by one to the assembly mechanism; PCB loading mechanism, used to transport a stack of PCB boards to be loaded to a designated location; A PCB conveying mechanism, used to transfer the entire stack of PCB boards one by one from a designated location to the assembly mechanism; Wherein, the tooling feeding mechanism comprises: a tooling conveying mechanism, which is used to transport the tools dropped thereon to the assembly mechanism; a group of material blocking mechanisms, which can be brought together and pulled apart by horizontal extension and retraction, and the two side flanges of the last tooling in the whole stack of tools are respectively placed on the group of material blocking mechanisms; a supporting mechanism located below the whole stack of tools and capable of being lifted and lowered in the vertical direction, the height difference between the supporting mechanism and the whole stack of tools being greater than the height difference between the tooling conveying mechanism and the whole stack of tools, the supporting mechanism can lift the whole stack of tools until the last tooling leaves the material blocking mechanism so that the group of material blocking mechanisms can be pulled apart; and the whole stack of tools is lowered so that the group of material blocking mechanisms can be brought together and extended between the two side flanges of the last and second tools, so that after the supporting mechanism is reset, the last tooling is placed on the group of material blocking mechanisms and the last tooling falls on the tooling conveying mechanism; The top of the carrier platform is used to place the tooling, the horizontal telescopic mechanism includes an opening and closing cylinder arranged under the carrier platform, a slide rail is arranged at the bottom of the carrier platform, and the opening and closing mechanism includes a group of clamping arms corresponding to the group of elastic clamping structures, the clamping arms cooperate with the slide rail, and the clamping arms have a limiting portion located on the side of the carrier platform, and the limiting portion is provided with an elastic clamping locating pin that cooperates with the corresponding elastic clamping structure; the horizontal telescopic mechanism can be extended to push the group of clamping arms to slide and pull apart, so as to drive the group of elastic clamping structures to pull apart; when the horizontal telescopic mechanism is retracted, it can pull the group of clamping arms to slide and reset to the position where the limiting portion and the side of the carrier platform are abutted, so as to drive the group of elastic clamping structures to reset to a close state to clamp the PCB board.

2. The PCB board and elastic clamping fixture assembly system according to claim 1, characterized in that: The material supporting mechanism includes a material supporting cylinder and a group of material receiving cylinders, wherein the group of material receiving cylinders are respectively located on the left and right sides of the material supporting cylinder. When the material supporting cylinder is extended, it can lift the whole stack of tooling until the last tooling leaves the material blocking mechanism; when the group of material receiving cylinders is extended and the material supporting cylinders are retracted, the whole stack of tooling can be lowered; and when the group of material receiving cylinders is retracted, it can be reset.

3. The PCB board and elastic clamping tooling assembly system according to claim 2, characterized in that: The tooling conveying mechanism comprises a set of first rails arranged in parallel, a set of tooling conveying belts, and a blocking positioning cylinder, wherein the set of tooling conveying belts are correspondingly installed on the set of first rails; The assembly mechanism, the blocking and positioning cylinder, the material supporting cylinder and a group of material receiving cylinders are all located between the group of tooling conveyor belts. The blocking and positioning cylinder is arranged behind the assembly mechanism and can block the tooling on the belt above the assembly mechanism after being extended. The material supporting cylinder and a group of material receiving cylinders are located in front of the assembly mechanism. The blocking and positioning cylinder can initially position the tooling on the belt above the assembly mechanism when extended.

4. The PCB board and elastic clamping tool assembly system according to claim 3, characterized in that: The tooling conveying mechanism further comprises a flow channel width adjusting mechanism, which is connected to the group of first rails at the same time and can adjust the spacing between the group of first rails through telescopic movement.

5. The PCB board and elastic clamping tooling assembly system according to claim 3, characterized in that: The assembly mechanism also includes a support platform and upper and lower cylinders. The load-bearing platform is placed on the support platform, and the upper and lower cylinders are located below the support platform. The support platform is provided with windows through which the upper and lower cylinders can pass. The upper and lower cylinders can lift the load-bearing platform off the support platform so that the tooling located above it falls onto the load-bearing platform.

6. The PCB board and elastic clamping tool assembly system according to claim 1, characterized in that: Both ends of the tooling are provided with sliding grooves, and the elastic clamping positioning pin passes through the sliding groove and cooperates with the corresponding elastic clamping structure. When the set of clamping arms slides, the elastic clamping positioning pin can slide in the sliding groove.

7. The PCB board and elastic clamping tool assembly system according to claim 1, characterized in that: The PCB feeding mechanism comprises: a group of second rails arranged in parallel, a group of feeding cylinders correspondingly installed on the group of second rails, a vertically liftable lifting mechanism, a lateral positioning cylinder, and a lateral positioning cylinder; The last PCB board in the whole stack of PCB boards is placed on the group of feeding cylinders and can be moved to the top of the lifting mechanism as the group of feeding cylinders extend; the lifting mechanism can lift the whole stack of PCB boards located above it; the lateral positioning cylinder and the transverse positioning cylinder are located on two adjacent sides above the lifting mechanism, and are used to extend simultaneously after the whole stack of PCB boards is lifted so as to position the PCB boards and wait for the PCB conveying mechanism to pick up the boards.

8. The PCB board and elastic clamping tool assembly system according to claim 1, characterized in that: The PCB conveying mechanism comprises: a third track, a moving module, a slide cylinder, a vacuum generating device, and a vacuum suction cup controlled by the vacuum generating device; The moving module is installed on the third track and can slide along the third track between above the PCB feeding mechanism and above the assembly mechanism. The slide cylinder and the vacuum generating device are installed on the moving module. The vacuum suction cup is installed on the slide cylinder. The vacuum suction cup can move up and down in the vertical direction as the slide cylinder is extended and retracted, so that when the moving module moves above the PCB feeding mechanism, it can suck up a top PCB board from the entire stack of PCB boards by descending and rise after sucking the PCB board.

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