Automatic taking, placing and pressing all-in-one machine

Abstract

The invention provides an automatic taking, placing and pressing all-in-one machine which comprises a skip car feeding mechanism, a charging tray feeding mechanism and a pressure maintaining mechanism, the charging tray feeding mechanism and the pressure maintaining mechanism are sequentially arranged on the conveying downstream of the skip car feeding mechanism, and an X-axis conveying assembly comprises an X-axis conveying belt, a limiting blocking strip, an adjusting block, an adjusting screw, a pressure maintaining lower die, a blocking air cylinder and a baffle. The front end and the rear end of the pressure maintaining lower die are placed on the two sets of X-axis conveying belts respectively, the four corners of the pressure maintaining lower die correspond to the lower portions of the four sets of adjusting screws respectively, the supporting assembly corresponds to the lower portion of the pressure maintaining lower die, the blocking air cylinder is fixed to the installation platform, and the baffle is fixed to the power output end of the blocking air cylinder and corresponds to the left side of the pressure maintaining lower die. The circuit board pressure maintaining die has the advantages that the flatness of the upper end face of the pressure maintaining lower die can be guaranteed, so that it is guaranteed that in the pressure maintaining process, pressure maintaining pressure borne by elements at all positions on a circuit board is balanced, and the pressure maintaining effect can be improved.

Description

Technical Field

[0001] The present invention relates to the field of circuit board processing equipment, and particularly relates to an automatic pick-and-place and press-fitting integrated machine. Background Art

[0002] After the components of the circuit board are assembled, pressure needs to be maintained. At the pressure-maintaining station, the circuit board is placed on a support platform, and the support platform supports the circuit board so that the pressure-maintaining upper die can apply pressure to the circuit board. Generally, the support platform is driven to lift by a cylinder in the middle below it. Before the circuit board is pressure-maintained, it is difficult to ensure the flatness of the support platform. As a result, when the pressure-maintaining upper die applies pressure to the components on the circuit board, the pressure received by the components at different positions varies greatly. For the components with too much pressure, they are easily damaged, while for the components with too little pressure, they cannot be fully assembled with the circuit board, ultimately having an adverse impact on the performance of the circuit board. Therefore, it is necessary to manufacture an automatic pick-and-place and press-fitting integrated machine to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic pick-and-place and press-fitting integrated machine to solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An automatic pick-and-place and press-fitting integrated machine includes a trolley loading mechanism, a tray loading mechanism, and a pressure-maintaining mechanism. The tray loading mechanism and the pressure-maintaining mechanism are sequentially arranged downstream of the trolley loading mechanism in terms of conveying. The pressure-maintaining mechanism includes an installation platform, an XYZ-axis linkage driving assembly, a pick-and-place manipulator, an X-axis conveying assembly, a support assembly, an X-axis driving assembly, a Z-axis driving assembly, and a pressure-maintaining upper die. The XYZ-axis linkage driving assembly is fixed above the installation platform, the pick-and-place manipulator is fixed at the power output end of the XYZ-axis linkage driving assembly, the X-axis conveying assembly is fixed above the installation platform, two groups of X-axis conveying assemblies are arranged in the front-rear direction, the support assembly is fixed on the installation platform and corresponds to the space between the two groups of X-axis conveying assemblies, the X-axis driving assembly is fixed on the installation platform, the Z-axis driving assembly is fixed at the power output end of the X-axis driving assembly, the pressure-maintaining upper die is fixed at the power output end of the Z-axis driving assembly, and both the pick-and-place manipulator and the pressure-maintaining upper die are located above the support assembly;

[0006] The X-axis conveying assembly includes an X-axis conveyor belt, a limit bar, an adjustment block, an adjustment screw, a pressure-holding lower die, a blocking cylinder, and a baffle. The X-axis conveyor belt is fixed above the installation platform. The limit bar is fixedly installed outside and above the X-axis conveyor belt. The adjustment block is fixed on the limit bar and is adjustable in the left-right direction. The adjustment screw vertically penetrates through the adjustment block and is threadedly connected to the adjustment block. Two sets of the adjustment block and the adjustment screw are provided on each set of limit bars. The front and rear ends of the pressure-holding lower die are respectively placed on two sets of X-axis conveyor belts. The four corners of the pressure-holding lower die respectively correspond to the lower sides of four sets of adjustment screws. The support assembly corresponds to the lower side of the pressure-holding lower die. The blocking cylinder is fixed on the installation platform. The baffle is fixed on the power output end of the blocking cylinder and corresponds to the left side of the pressure-holding lower die.

[0007] Further description of the present invention: The upper end of the adjustment screw is threadedly connected to the adjustment block and has a cross slot on the upper end face. The cross-sectional area of the lower end of the adjustment screw is larger than that of the upper end.

[0008] Further description of the present invention: The support assembly includes a support cylinder, a support bottom plate, a support cushion plate, a guide post, and a guide sleeve. The support cylinder is fixed on the installation platform with its power output end facing upward. The support bottom plate is fixed on the power output end of the support cylinder. The support cushion plate is fixed above the support bottom plate. Multiple sets of the support cushion plates are evenly arranged on the support bottom plate. The pressure-holding lower die corresponds to the upper side of the support cushion plate. The guide sleeve is fixed on the installation platform. The upper end of the guide post is fixed below the support bottom plate, and the lower end of the guide post is slidably connected to the guide sleeve.

[0009] Further description of the present invention: The material cart loading mechanism includes a material frame cart, a material frame lifting assembly, a guiding assembly, and a material cart positioning assembly. Two sets of the guiding assemblies are provided and respectively correspond to the left and right sides of the lifting assembly. The material frame cart corresponds to the front side of the material frame lifting assembly and is located between the two sets of guiding assemblies. A support rod is vertically provided at the rear end of the material frame cart. The material cart positioning assembly includes a first connecting block, an elastic telescopic member, a positioning cylinder, a second connecting block, a positioning plate, and a sensor. The first connecting block is fixedly arranged on one side of the material frame lifting assembly. The rear end of the elastic telescopic member is fixed on the first connecting block, and the front end of the elastic telescopic member is an elastic telescopic end. The positioning cylinder is fixed on the guiding assembly. The second connecting block is fixed on the power output end of the positioning cylinder. The positioning plate is fixed on the second connecting block and is adjustable in the front-rear direction. A positioning boss is provided on the side of the positioning plate facing the material frame lifting assembly. The front and rear ends of the support rod respectively abut against the rear end face of the positioning boss and the elastic telescopic end of the elastic telescopic member. The sensor is fixed on the second connecting block and the sensing end corresponds to the support rod.

[0010] Further description of the present invention: the material frame trolley includes a material cart base, casters, a vertical push rod, a handle, a first mounting frame, a first material tray guide wheel, a second material tray guide wheel and a material frame limit block. The casters are fixed at the four lower corners of the material cart base, a support rod is provided at the rear end of the material cart base, the lower end of the vertical push rod is fixed to the front side of the material cart base, two groups of vertical push rods are arranged and correspond to the left and right sides of the material cart base, the handle is fixed to the front side of the upper end of the vertical push rod, the first mounting frame is fixed to one side of the vertical push rod, the two groups of first mounting frames are arranged facing each other, the first material tray guide wheel and the second material tray guide wheel are both rotatably mounted on the inner side of the first mounting frame, the first material tray guide wheel corresponds to above the second material tray guide wheel, the first material tray guide wheel and the second material tray guide wheel are arranged in multiple groups along the vertical direction, a lifting cavity is provided on the material cart base, and the material frame limit block is fixed above the material cart base and corresponds to the outer periphery of the lifting cavity.

[0011] Further description of the present invention: the material frame lifting assembly includes a lifting drive assembly, a lifting carrier plate and a positioning column. The lifting carrier plate is fixed at the power output end of the lifting drive assembly and corresponds to the lifting cavity. Two groups of positioning columns are arranged and both are fixed above the lifting carrier plate.

[0012] Further description of the present invention: The guide assembly includes a second mounting frame, a material cart guide wheel and a material frame guide wheel. The second mounting frame is fixedly arranged on the left and right sides of the material frame lifting assembly. The material cart guide wheel is rotatably mounted on the lower side of the second mounting frame. The material cart guide wheels are evenly arranged in multiple groups along the front and rear directions and correspond to the material cart base. The material frame guide wheels are rotatably mounted on the upper side of the second mounting frame. The material frame guide wheels are evenly arranged in multiple groups along the front and rear directions and correspond to the top of the material frame limit block.

[0013] Further description of the present invention: the material tray loading mechanism includes a material frame body, a material tray body, a material tray removal assembly, a material tray locking assembly and an unlocking assembly. The material tray body can be slidably installed in the material frame body along the front and rear directions. The material tray body is arranged in multiple groups in the material frame body along the vertical direction. A locking groove is provided at the lower end of the edge of the material tray body. The material tray removal assembly is fixedly arranged on the rear side of the material frame body. The material tray locking assembly includes a driving arm, a first connecting column, a second connecting column, a third connecting column, a compression spring, a locking roller, a driving handle and a limit screw. The middle part of the driving part is hinged to the outer side of the side wall of the material frame body. The first connecting column The locking cam is fixed at the front end of the driving arm, the second connecting column is fixed at the outer side of the side wall of the material frame body and corresponds to the top of the first connecting column, one end of the third connecting column is fixed at the front end of the driving arm and the other end is passed through the material frame body inwardly, the two ends of the compression spring are respectively fixed on the first connecting column and the second connecting column, the locking roller is rotatably mounted on the inner end of the third connecting column and corresponds to the locking groove, the driving handle is rotatably mounted on the rear end of the driving arm, the limit screw is threadedly connected to the side wall of the material frame body and corresponds to the bottom of the rear end of the driving arm, and the unlocking component is fixedly arranged on one side of the tray removal component and is used to lift the driving handle.

[0014] Further description of the present invention: The tray removal assembly includes a Y-axis drive assembly, a movable bottom plate, a Z-axis cylinder, a lifting connection plate, a push plate, and Y-axis slide rails. The Y-axis drive assembly is fixedly arranged at the rear side of the frame body. The movable bottom plate is fixed to the power output end of the Y-axis drive assembly. The Z-axis cylinder is fixed above the movable bottom plate. The lifting connection plate is fixed to the power output end of the Z-axis cylinder. The push plate is fixed below the lifting connection plate. Two groups of push plates are arranged in the front-rear direction. Oblique angles are provided on the lower ends of the two groups of push plates on the side facing each other. Two groups of Y-axis slide rails are provided and are respectively fixedly arranged on the left and right sides of the Y-axis drive assembly. The unlocking assembly is fixed on one side of the Y-axis slide rail. A push boss is provided above the rear end of the tray body. During the process of removing the tray, the two ends of the tray body are respectively slidably connected to the two groups of Y-axis slide rails, and the push boss corresponds to the space between the two groups of push plates.

[0015] Further description of the present invention: The unlocking assembly includes an unlocking cylinder and an unlocking drive block. The unlocking cylinder is fixed outside the Y-axis slide rail and its power output end faces the front side. The unlocking drive block is fixed to the power output end of the unlocking cylinder. A drive inclined surface is provided above the front side of the unlocking drive block.

[0016] The beneficial effects of the present invention are as follows: The pressure-holding lower die is conveyed from right to left by the X-axis conveyor belt until the left end of the pressure-holding lower die touches the baffle and then stops. The support assembly drives the pressure-holding lower die to rise, so that the pressure-holding lower die is separated from the X-axis conveyor belt. The four corners of the upper end surface of the pressure-holding lower die are in contact with the lower ends of the adjusting screws. The adjusting screws can be finely adjusted in the vertical direction and can be horizontally shifted left and right through the adjusting block to adapt to different specifications of the pressure-holding lower die. After the pressure-holding lower die rises to the proper position, the XYZ-axis linkage drive assembly grabs a group of circuit boards from the loading station and places them on the pressure-holding lower die. Then, the X-axis drive assembly drives the pressure-holding upper die to move above the circuit board and, under the drive of the Z-axis drive assembly, presses the circuit board. After the pressing is completed, the pressure-holding upper die resets. The blocking cylinder drives the baffle to descend. The support assembly drives the pressure-holding lower die to descend. The X-axis conveyor belt transports the pressure-holding lower die and the circuit board to the subsequent process to the left. The advantage of this design is that by arranging adjusting screws at the four corners above the pressure-holding lower die to limit the upper end surface of the pressure-holding lower die, the flatness of the upper end surface of the pressure-holding lower die can be ensured, so as to ensure that the pressure applied to the components at each position on the circuit board is balanced during the pressure-holding process, and the pressure-holding effect can be improved. Description of the Drawings

[0017] Figure 1 is the overall structure diagram of the present invention;

[0018] Figure 2 is the structure diagram of the material truck loading mechanism in the present invention;

[0019] Figure 3 is the structure diagram of the frame truck and the material truck positioning assembly in the present invention;

[0020] Figure 4 Is Figure 2 The partial enlarged view of position A in it;

[0021] Figure 5 Is the structural diagram of the material frame lifting component and the guiding component in the present invention;

[0022] Figure 6 Is the structural diagram of the material tray feeding mechanism in the present invention;

[0023] Figure 7 Is the structural diagram of the material frame body, the material tray body and the material tray locking component in the present invention (wherein the material frame body part is hidden);

[0024] Figure 8 Is Figure 7 The partial enlarged view of position B in it;

[0025] Figure 9 Is the structural diagram of the material tray removing component and the unlocking component in the present invention;

[0026] Figure 10 Is Figure 9 The partial enlarged view of position C in it;

[0027] Figure 11 Is the structural diagram of the pressure maintaining mechanism in the present invention;

[0028] Figure 12 Is the structural diagram of the X-axis driving component and the supporting component in the present invention;

[0029] Figure 13 Is Figure 12 The partial enlarged view of position D in it;

[0030] Figure 14 Is the structural diagram of the supporting component in the present invention;

[0031] Explanation of reference numerals:

[0032] 1. Material cart feeding mechanism; 2. Material tray feeding mechanism; 3. Pressure maintaining mechanism;

[0033] 11. Material frame cart; 111. Cart base; 1111. Support rod; 1112. Lifting cavity; 112. Caster; 113. Vertical push rod; 114. Handle; 115. First mounting bracket; 116. First tray guide wheel; 117. Second tray guide wheel; 118. Frame limit block; 12. Frame lifting assembly; 121. Lifting drive assembly; 122. Lifting carrier plate; 123. Positioning column; 13. Guide assembly; 131. Second mounting bracket; 132. Cart guide wheel; 133. Frame guide wheel; 14. Cart positioning assembly; 141. First connecting block; 142. Elastic telescopic member; 143. Positioning cylinder; 144. Second connecting block; 145. Positioning plate; 1451. Positioning boss; 146. Inductor

[0034] 21. Frame body; 22. Tray body; 221. Locking groove; 222. Pushing boss; 23. Tray removal assembly; 231. Y-axis drive assembly; 232. Movable bottom plate; 233. Z-axis cylinder; 234. Lifting connecting plate; 235. Pushing plate; 236. Y-axis slide rail; 24. Tray locking assembly; 241. Driving arm; 242. First connecting column; 243. Second connecting column; 244. Third connecting column; 245. Compression spring; 246. Locking roller; 247. Driving handle; 248. Limit screw; 25. Unlocking assembly; 251. Unlocking cylinder; 252. Unlocking drive block; 2521. Driving inclined surface

[0035] 31. Installation platform; 32. XYZ-axis linkage drive assembly; 33. Pick-and-place manipulator; 34. X-axis conveying assembly; 341. X-axis conveyor belt; 342. Limit bar; 343. Adjusting block; 344. Adjusting screw; 3441. Cross slot; 345. Pressure-holding lower die; 346. Blocking cylinder; 347. Baffle; 35. Support assembly; 351. Support cylinder; 352. Support bottom plate; 353. Support pad; 354. Guide post; 355. Guide sleeve; 36. X-axis drive assembly; 37. Z-axis drive assembly; 38. Pressure-holding upper die Detailed implementation manners

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] As Figure 1 shown, an automatic pick-and-place and press-fitting integrated machine includes a material cart loading mechanism 1, a tray loading mechanism 2, and a pressure-holding mechanism 3. The tray loading mechanism 2 and the pressure-holding mechanism 3 are sequentially arranged downstream of the material cart loading mechanism 1 in terms of conveying

[0038] As Figures 2 to 5As shown in the figure, the loading mechanism 1 of the material cart includes a material box cart 11, a material box lifting assembly 12, a guiding assembly 13 and a material cart positioning assembly 14. Two sets of guiding assemblies 13 are provided and are respectively corresponding to the left and right sides of the lifting assembly. The material box cart 11 corresponds to the front side of the material box lifting assembly 12 and is between the two sets of guiding assemblies 13. A support rod 1111 is vertically provided at the rear end of the material box cart 11. The material cart positioning assembly 14 includes a first connecting block 141, an elastic telescopic member 142, a positioning cylinder 143, a second connecting block 144, a positioning plate 145 and a sensor 146. The first connecting block 141 is fixedly arranged on one side of the material box lifting assembly 12. The rear end of the elastic telescopic member 142 is fixed on the first connecting block 141. The front end of the elastic telescopic member 142 is an elastic telescopic end. The positioning cylinder 143 is fixed on the guiding assembly 13. The second connecting block 144 is fixed on the power output end of the positioning cylinder 143. The positioning plate 145 is fixed on the second connecting block 144 and is adjustable in position along the front-back direction. A positioning boss 1451 is provided on the side of the positioning plate 145 facing the material box lifting assembly 12. The front and rear ends of the support rod 1111 are respectively abutted against the rear end face of the positioning boss 1451 and the elastic telescopic end of the elastic telescopic member 142. The sensor 146 is fixed on the second connecting block 144 and the sensing end corresponds to the support rod 1111.

[0039] The operator pushes the material box cart 11. The material box cart 11 is guided by the guiding assembly 13 to perform preliminary positioning of the material box cart 11 pushed to the front side of the material box lifting assembly 12. The support rod 1111 on the material box cart 11 squeezes the elastic telescopic end of the elastic telescopic member 142 backward. At this time, the sensor 146 senses the support rod 1111, and the device transmits a signal to the positioning cylinder 143 to drive the positioning plate 145 to extend out so that the positioning boss 1451 corresponds to the front side of the support rod 1111. Then, the operator can let go. The support rod 1111 abuts against the positioning boss 1451 forward under the action of the elastic telescopic member 142, thereby completing the precise fixation of the material box cart 11. A set of material box positioning assemblies can be provided on each of the left and right sides of the material box cart 11 to further improve the positioning accuracy. The advantage of this design is that it can quickly and accurately determine the relative position between the material box cart 11 and the material box lifting assembly 12, and improve the position accuracy during the loading of the circuit board.

[0040] The material frame trolley 11 includes a trolley base 111, casters 112, a vertical push rod 113, a handle 114, a first mounting bracket 115, a first tray guide wheel 116, a second tray guide wheel 117, and a material frame limiting block 118. The casters 112 are fixed at the four corners below the trolley base 111. A support rod 1111 is provided at the rear end of the trolley base 111. The lower end of the vertical push rod 113 is fixed to the front side of the trolley base 111. Two sets of vertical push rods 113 are provided and correspond to the left and right sides of the trolley base 111. The handle 114 is fixed to the front side of the upper end of the vertical push rod 113. The first mounting bracket 115 is fixed to one side of the vertical push rod 113. The two sets of first mounting brackets 115 are arranged facing each other. The first tray guide wheel 116 and the second tray guide wheel 117 are rotatably installed inside the first mounting bracket 115. The first tray guide wheel 116 corresponds to the upper side of the second tray guide wheel 117. Multiple sets of the first tray guide wheel 116 and the second tray guide wheel 117 are arranged in the vertical direction. A lifting cavity 1112 is provided on the trolley base 111. The material frame limiting block 118 is fixed above the trolley base 111 and corresponds to the outer periphery of the lifting cavity 1112.

[0041] The material frame is first placed in the area enclosed by the material frame limiting block 118 and the first mounting bracket 115, and then the tray containing the circuit board is inserted between the first tray guide wheel 116 and the second tray guide wheel 117 of the same group, so as to be quickly placed into the material frame. The operator holds the handle 114 and pushes the material frame trolley 11 to the front side of the material frame lifting assembly 12. The lifting cavity 1112 on the trolley base 111 facilitates the material frame lifting assembly 12 to lift the material frame.

[0042] The material frame lifting assembly 12 includes a lifting drive assembly 121, a lifting carrier plate 122, and positioning columns 123. The lifting carrier plate 122 is fixed to the power output end of the lifting drive assembly 121 and corresponds to the inside of the lifting cavity 1112. Two sets of positioning columns 123 are provided and are both fixed above the lifting carrier plate 122.

[0043] The lifting drive assembly 121 drives the lifting carrier plate 122 to rise, thereby driving the material frame to be gradually lifted, so as to facilitate the subsequent process to load the tray. The positioning columns 123 can cooperate with the positioning holes at the bottom of the material frame to make the position of the material frame accurate when lifting the material frame.

[0044] The guiding assembly 13 includes a second mounting bracket 131, a trolley guide wheel 132, and a material frame guide wheel 133. The second mounting bracket 131 is fixedly arranged on the left and right sides of the material frame lifting assembly 12. The trolley guide wheel 132 is rotatably installed on the lower side of the second mounting bracket 131. Multiple sets of trolley guide wheels 132 are evenly arranged in the front-rear direction and correspond to the trolley base 111. The material frame guide wheel 133 is rotatably installed on the upper side of the second mounting bracket 131. Multiple sets of material frame guide wheels 133 are evenly arranged in the front-rear direction and correspond to the upper side of the material frame limiting block 118.

[0045] In the process of pushing the material frame trolley 11 to the front side of the material frame lifting assembly 12, the material trolley guide wheels 132 guide the two sides of the material trolley base 111, and the material frame guide wheels 133 guide the two sides of the material frame, so that the material frame trolley 11 can be quickly and preliminarily positioned.

[0046] like Figures 6 to 10 As shown, the tray loading mechanism 2 includes a material frame body 21, a material tray body 22, a material tray removal assembly 23, a material tray locking assembly 24 and an unlocking assembly 25. The material tray body 22 can be slidably installed in the material frame body 21 along the front and rear directions. The material tray body 22 is arranged in multiple groups in the material frame body 21 along the vertical direction. The lower end of the edge of the material tray body 22 is provided with a locking groove 221. The material tray removal assembly 23 is fixedly arranged on the rear side of the material frame body 21. The material tray locking assembly 24 includes a driving arm 241, a first connecting column 242, a second connecting column 243, a third connecting column 244, a compression spring 245, a locking roller 246, a driving handle 247 and a limit screw 248. The middle part of the driving part is hinged to the outer side of the side wall of the material frame body 21. The first connecting column 242 is fixed on the driving handle 247. The front end of the movable arm 241, the second connecting column 243 is fixed on the outer side of the side wall of the material frame body 21 and corresponds to the top of the first connecting column 242, one end of the third connecting column 244 is fixed on the front end of the driving arm 241 and the other end is passed through the material frame body 21 inwardly, the two ends of the compression spring 245 are respectively fixed on the first connecting column 242 and the second connecting column 243, the locking roller 246 is rotatably mounted on the inner end of the third connecting column 244 and corresponds to the locking groove 221, the driving handle 247 is rotatably mounted on the rear end of the driving arm 241, the limit screw 248 is threadedly connected to the side wall of the material frame body 21 and corresponds to the bottom of the rear end of the driving arm 241, and the unlocking component 25 is fixedly arranged on one side of the tray removal component 23 and is used to lift the driving handle 247.

[0047] When loading the tray, the frame body 21 is moved to the front side of the tray removal assembly 23 by a trolley, and the frame body 21 is gradually lifted by a lifting device so that the tray removal assembly 23 can remove the tray body 22 layer by layer. Before the tray is removed, the compression spring 245 pulls up the front end of the driving arm 241 through the first connecting column 242, and the lower part of the rear end of the driving arm 241 abuts against the limit screw 248. At this time, it is the maximum rising height of the front end of the driving arm 241, and the locking roller 246 corresponds to the locking groove 221 of the tray body 22, so that the tray body 22 will not shift due to the vibration of the equipment. When it is necessary to remove the tray, the unlocking assembly 25 lifts the driving handle 247, so that the front end of the driving arm 241 descends, and finally the locking roller 246 disengages from the locking groove 221, so that the tray body 22 can be removed outward by the tray removal assembly 23. The advantage of this design is that it can ensure that during the loading process of the tray body 22, the tray body 22 will not be affected by the vibration of the equipment and cause position deviation, thus improving the loading accuracy.

[0048] The tray removal assembly 23 includes a Y-axis driving assembly 231, a movable bottom plate 232, a Z-axis cylinder 233, a lifting connecting plate 234, a pushing plate 235 and a Y-axis slide rail 236. The Y-axis driving assembly 231 is fixedly arranged at the rear side of the frame body 21, the movable bottom plate 232 is fixed at the power output end of the Y-axis driving assembly 231, the Z-axis cylinder 233 is fixed above the movable bottom plate 232, the lifting connecting plate 234 is fixed at the power output end of the Z-axis cylinder 233, the pushing plate 235 is fixed below the lifting connecting plate 234, two groups of pushing plates 235 are arranged in the front-rear direction, and the lower ends of the two groups of pushing plates 235 are provided with bevels on the opposite sides. Two groups of Y-axis slide rails 236 are respectively fixedly arranged on the left and right sides of the Y-axis driving assembly 231, the unlocking assembly 25 is fixed on one side of the Y-axis slide rail 236, and a pushing boss 222 is arranged above the rear end of the tray body 22. During the tray removal process, the two ends of the tray body 22 are respectively slidably connected with the two groups of Y-axis slide rails 236, and the pushing boss corresponds to the space between the two groups of pushing plates 235.

[0049] After the unlocking assembly 25 unlocks the tray locking assembly 24, the Z-axis cylinder 233 drives the lifting connecting plate 234 to rise, the Y-axis driving assembly 231 drives the pushing plate 235 to move forward and correspond to the pushing boss 222, then the Z-axis cylinder 233 drives the lifting connecting plate 234 to descend, so that the pushing boss 222 is inserted into the front and rear two groups of pushing plates 235, and then under the drive of the Y-axis driving assembly 231, the tray body 22 is pulled and slides backward along the Y-axis slide rail 236, and the tray body 22 is conveyed to the subsequent process.

[0050] The unlocking assembly 25 includes an unlocking cylinder 251 and an unlocking drive block 252. The unlocking cylinder 251 is fixed outside the Y-axis slide rail 236 with its power output end facing the front side. The unlocking drive block 252 is fixed to the power output end of the unlocking cylinder 251, and a driving inclined surface 2521 is provided above the front side of the unlocking drive block 252.

[0051] When it is necessary to unlock the tray locking assembly 24, the unlocking cylinder 251 drives the unlocking drive block 252 to move forward, so that the driving inclined surface 2521 abuts against the side surface of the driving handle 247 and lifts it. As the driving handle 247 is continuously lifted, the unlocking is finally completed.

[0052] As Figures 11 to 14 shown, the pressure-holding mechanism 3 includes a mounting platform 31, an XYZ-axis linkage drive assembly 32, a material-taking manipulator 33, an X-axis conveying assembly 34, a support assembly 35, an X-axis drive assembly 36, a Z-axis drive assembly 37, and a pressure-holding upper die 38. The XYZ-axis linkage drive assembly 32 is fixed above the mounting platform 31. The material-taking manipulator 33 is fixed to the power output end of the XYZ-axis linkage drive assembly 32. The X-axis conveying assembly 34 is fixed above the mounting platform 31. Two groups of X-axis conveying assemblies 34 are arranged in the front-back direction. The support assembly 35 is fixed on the mounting platform 31 and corresponds to the space between the two groups of X-axis conveying assemblies 34. The X-axis drive assembly 36 is fixed on the mounting platform 31. The Z-axis drive assembly 37 is fixed to the power output end of the X-axis drive assembly 36. The pressure-holding upper die 38 is fixed to the power output end of the Z-axis drive assembly 37. Both the material-taking manipulator 33 and the pressure-holding upper die 38 are located above the support assembly 35;

[0053] The X-axis conveying assembly 34 includes an X-axis conveyor belt 341, a limit bar 342, an adjustment block 343, an adjustment screw 344, a pressure-holding lower die 345, a blocking cylinder 346, and a baffle 347. The X-axis conveyor belt 341 is fixed above the mounting platform 31. The limit bar 342 is fixedly installed above the outer side of the X-axis conveyor belt 341. The adjustment block 343 is fixed on the limit bar 342 and is adjustable in the left-right direction. The adjustment screw 344 vertically penetrates through the adjustment block 343 and is threadedly connected to the adjustment block 343. Two sets of the adjustment block 343 and the adjustment screw 344 are provided on each set of limit bars 342. The front and rear ends of the pressure-holding lower die 345 are respectively placed on the two sets of X-axis conveyor belts 341. The four corners of the pressure-holding lower die 345 respectively correspond to the lower sides of the four sets of adjustment screws 344. The support assembly 35 corresponds to the lower side of the pressure-holding lower die 345. The blocking cylinder 346 is fixed on the mounting platform 31. The baffle 347 is fixed to the power output end of the blocking cylinder 346 and corresponds to the left side of the pressure-holding lower die 345.

[0054] The pressure-holding lower die 345 is conveyed from right to left by the X-axis conveyor belt 341 until it stops when the left end of the pressure-holding lower die 345 touches the baffle 347. The support assembly 35 drives the pressure-holding lower die 345 to rise, so that the pressure-holding lower die 345 is separated from the X-axis conveyor belt 341. The four corners of the upper end surface of the pressure-holding lower die 345 are abutted against the lower ends of the adjusting screws 344. The adjusting screws 344 can be finely adjusted in the vertical direction and can be horizontally shifted left and right through the adjusting block 343 to adapt to different specifications of the pressure-holding lower die 345. After the pressure-holding lower die 345 rises to the proper position, the XYZ-axis linkage driving assembly 32 grabs a set of circuit boards from the loading station and places them on the pressure-holding lower die 345. Then, the X-axis driving assembly 36 drives the pressure-holding upper die 38 to move above the circuit board and, under the drive of the Z-axis driving assembly 37, presses the circuit board. After the pressing is completed, the pressure-holding upper die 38 resets. The blocking cylinder 346 drives the baffle 347 to descend, the support assembly 35 drives the pressure-holding lower die 345 to descend, and the X-axis conveyor belt 341 transports the pressure-holding lower die 345 and the circuit board to the subsequent process to the left. The advantage of this design is that by arranging the adjusting screws 344 at the four corners above the pressure-holding lower die 345 to limit the upper end surface of the pressure-holding lower die 345, the flatness of the upper end surface of the pressure-holding lower die 345 can be ensured, so that during the pressure-holding process, the pressure-holding pressures received by the components at various positions on the circuit board are balanced, and the pressure-holding effect can be improved.

[0055] The upper end of the adjusting screw 344 is threadedly connected to the adjusting block 343 and a cross slot 3441 is provided on the upper end surface. The cross-sectional area of the lower end of the adjusting screw 344 is larger than that of the upper end.

[0056] That is, the head of the adjusting screw 344 faces downward, which can increase the contact area with the end surface of the pressure-holding lower die 345. The lower end of the adjusting screw 344 is not easily damaged and can better maintain the position of the end surface of the pressure-holding lower die 345.

[0057] The support assembly 35 includes a support cylinder 351, a support bottom plate 352, a support backing plate 353, guide posts 354 and guide sleeves 355. The support cylinder 351 is fixed on the installation platform 31 and the power output end faces upward. The support bottom plate 352 is fixed on the power output end of the support cylinder 351. The support backing plate 353 is fixed above the support bottom plate 352. Multiple groups of the support backing plates 353 are evenly arranged on the support bottom plate 352. The pressure-holding lower die 345 corresponds to the upper part of the support backing plate 353. The guide sleeves 355 are fixed on the installation platform 31. The upper ends of the guide posts 354 are fixed below the support bottom plate 352, and the lower ends of the guide posts 354 are slidably connected to the guide sleeves 355.

[0058] The support cylinder 351 drives the support bottom plate 352 to rise. The support bottom plate 352 lifts the pressure-holding lower die 345 upward through the support backing plate 353. By setting the guide posts 354 and the guide sleeves 355 to cooperate, the lifting and lowering actions of the support bottom plate 352 are made smoother.

[0059] Working principle of this embodiment:

[0060] The frame body 21 is placed on the frame cart 11, and multiple groups of tray bodies 22 are placed inside the frame body 21. The frame cart 11 pushes the frame body 21 to the front side of the frame lifting assembly 12. The frame lifting assembly 12 gradually lifts it, and the tray removal assembly 23 moves the tray body 22 backward. The picking manipulator 33 grabs the circuit board on the tray body 22 after the backward movement and places it on the holding lower die 345. Then, the holding upper die 38 performs pressure holding on the circuit board, and the circuit board after pressure holding is transported to the subsequent process.

[0061] The above does not impose any limitation on the technical scope of the present invention. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic pick-and-place press-fit machine, characterized in that: It includes a material cart feeding mechanism, a material tray feeding mechanism and a pressure holding mechanism, the material tray feeding mechanism and the pressure holding mechanism are sequentially arranged at the conveying downstream of the material cart feeding mechanism, the pressure holding mechanism includes a mounting platform, an XYZ-axis linkage drive assembly, a material picking manipulator, an X-axis conveying assembly, a support assembly, an X-axis drive assembly, a Z-axis drive assembly and a pressure holding upper die, the XYZ-axis linkage drive assembly is fixed above the mounting platform, the material picking manipulator is fixed to the power output end of the XYZ-axis linkage drive assembly, the X-axis conveying assembly is fixed above the mounting platform, two groups of the X-axis conveying assembly are arranged along the front-rear direction, the support assembly is fixed on the mounting platform and corresponds to between the two groups of X-axis conveying assemblies, the X-axis drive assembly is fixed on the mounting platform, the Z-axis drive assembly is fixed to the power output end of the X-axis drive assembly, the pressure holding upper die is fixed to the power output end of the Z-axis drive assembly, and the material picking manipulator and the pressure holding upper die both correspond to the upper side of the support assembly; The X-axis conveying assembly includes an X-axis conveyor belt, a limit stop bar, an adjustment block, an adjustment screw, a pressure-holding lower die, a blocking cylinder and a baffle. The X-axis conveyor belt is fixed above the mounting platform, the limit stop bar is fixedly mounted on the upper outer side of the X-axis conveyor belt, the adjustment block is fixed on the limit stop bar and is adjustable in the left and right directions, the adjustment screw vertically passes through the adjustment block and is threadedly connected to the adjustment block, two groups of the adjustment block and the adjustment screw are arranged on one group of the limit stop bars, the front and rear ends of the pressure-holding lower die are respectively placed on two groups of the X-axis conveyor belts, the four corners of the pressure-holding lower die correspond to the bottom of the four groups of adjustment screws, the support assembly corresponds to the bottom of the pressure-holding lower die, the blocking cylinder is fixed on the mounting platform, and the baffle is fixed to the power output end of the blocking cylinder and corresponds to the left side of the pressure-holding lower die.

2. The automatic pick-and-place press-fit machine according to claim 1, characterized in that: The upper end of the adjusting screw is threadedly connected to the adjusting block and the upper end surface is provided with a cross groove. The cross-sectional area of ​​the lower end of the adjusting screw is larger than that of the upper end.

3. The automatic pick-and-place press-fit machine according to claim 1, characterized in that: The support assembly includes a support cylinder, a support base plate, a support pad, a guide column and a guide sleeve. The support cylinder is fixed on the mounting platform with the power output end facing upward, the support base plate is fixed on the power output end of the support cylinder, the support pad is fixed above the support base plate, and multiple groups of support pads are evenly arranged on the support base plate. The pressure-maintaining lower die corresponds to the top of the support pad. The guide sleeve is fixed on the mounting platform, the upper end of the guide column is fixed below the support base plate, and the lower end of the guide column is slidably connected to the guide sleeve.

4. The automatic pick-and-place press-fit machine according to claim 1, characterized in that: The material cart feeding mechanism includes a material frame trolley, a material frame lifting assembly, a guide assembly and a material cart positioning assembly. The guide assembly is provided in two groups and corresponds to the left and right sides of the lifting assembly respectively. The material frame trolley corresponds to the front side of the material frame lifting assembly and corresponds to between the two groups of the guide assemblies. A support rod is vertically provided at the rear end of the material frame trolley. The material cart positioning assembly includes a first connecting block, an elastic telescopic member, a positioning cylinder, a second connecting block, a positioning plate and a sensor. The first connecting block is fixedly provided on one side of the material frame lifting assembly. The rear end of the elastic telescopic member is fixed on the first connecting block. The front end of the elastic telescopic member is an elastic telescopic end. The positioning cylinder is fixed on the guide assembly. The second connecting block is fixed on the power output end of the positioning cylinder. The positioning plate is fixed on the second connecting block and can be adjusted in position along the front and rear directions. A positioning boss is provided on the side of the positioning plate facing the material frame lifting assembly. The front and rear ends of the support rod are respectively abutted against the rear end surface of the positioning boss and the elastic telescopic end of the elastic telescopic member. The sensor is fixed on the second connecting block and the sensing end corresponds to the support rod.

5. The automatic pick-and-place press-fit machine according to claim 4, characterized in that: The yoke is fixed to the bottom surface of the support frame, and the yoke is fixed to the bottom surface of the support frame.

6. The automatic pick-and-place press-fit machine according to claim 5, characterized in that: The material frame lifting assembly includes a lifting drive assembly, a lifting carrier plate and a positioning column. The lifting carrier plate is fixed at the power output end of the lifting drive assembly and corresponds to the lifting cavity. Two groups of positioning columns are arranged and both are fixed above the lifting carrier plate.

7. The automatic pick-and-place press-fit machine according to claim 5, characterized in that: The guide assembly includes a second mounting frame, a material cart guide wheel and a material frame guide wheel. The second mounting frame is fixedly arranged on the left and right sides of the material frame lifting assembly. The material cart guide wheel is rotatably mounted on the lower side of the second mounting frame. The material cart guide wheels are evenly arranged in multiple groups along the front and rear directions and correspond to the material cart base. The material frame guide wheels are rotatably mounted on the upper side of the second mounting frame. The material frame guide wheels are evenly arranged in multiple groups along the front and rear directions and correspond to the top of the material frame limit block.

8. The automatic pick-and-place press-fit machine according to claim 1, characterized in that: The tray loading mechanism comprises a material frame body, a material tray body, a material tray removal assembly, a material tray locking assembly and an unlocking assembly, the material tray body can be slidably installed in the material frame body in the front and rear directions, the material tray body is arranged in multiple groups in the material frame body in the vertical direction, the lower end of the edge of the material tray body is provided with a locking groove, the material tray removal assembly is fixedly arranged on the rear side of the material frame body, the material tray locking assembly comprises a driving arm, a first connecting column, a second connecting column, a third connecting column, a compression spring, a locking roller, a driving handle and a limit screw, the middle part of the driving part is hinged to the outer side of the side wall of the material frame body, the first connecting column is fixed to the front end of the driving arm, and the The second connecting column is fixed to the outer side of the side wall of the material frame body and corresponds to the top of the first connecting column. One end of the third connecting column is fixed to the front end of the driving arm and the other end is passed through the material frame body inwardly. The two ends of the compression spring are respectively fixed on the first connecting column and the second connecting column. The locking roller is rotatably mounted on the inner end of the third connecting column and corresponds to the locking groove. The driving handle is rotatably mounted on the rear end of the driving arm. The limit screw is threadedly connected to the side wall of the material frame body and corresponds to the bottom of the rear end of the driving arm. The unlocking component is fixedly arranged on one side of the material tray removal component and is used to lift the driving handle.

9. The automatic pick-and-place press-fit machine according to claim 8, characterized in that: The material tray removing assembly comprises a Y-axis driving assembly, a movable bottom plate, a Z-axis cylinder, a lifting connecting plate, a pushing plate and a Y-axis slide rail. The Y-axis driving assembly is fixedly arranged on the rear side of the material frame body, the movable bottom plate is fixed to the power output end of the Y-axis driving assembly, the Z-axis cylinder is fixed above the movable bottom plate, the lifting connecting plate is fixed to the power output end of the Z-axis cylinder, the pushing plate is fixed below the lifting connecting plate, and the pushing plates are arranged in two groups along the front and rear directions, and the lower ends of the two groups of pushing plates are provided with bevels on the opposite sides, the Y-axis slide rails are arranged in two groups and are respectively fixedly arranged on the left and right sides of the Y-axis driving assembly, the unlocking assembly is fixed on one side of the Y-axis slide rail, and a pushing boss is provided above the rear end of the material tray body. During the material tray removing process, the two ends of the material tray body are respectively slidably connected with the two groups of Y-axis slide rails, and the pushing boss corresponds to between the two groups of pushing plates.

10. The automatic pick-and-place press-fit machine according to claim 9, characterized in that: The unlocking assembly includes an unlocking cylinder and an unlocking drive block. The unlocking cylinder is fixed on the outside of the Y-axis slide rail with the power output end facing the front side. The unlocking drive block is fixed on the power output end of the unlocking cylinder. A driving inclined surface is provided above the front side of the unlocking drive block.

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