A press machine for light emitting device

Abstract

The present invention provides a press machine for light-emitting devices, including a shell feeding mechanism, a circulating conveying mechanism and a pressing mechanism; the shell feeding mechanism includes a pre-feeding device, a buffer line and a final feeding device, the pre-feeding device can grab the shell from the tray to the buffer line; the final feeding device can absorb the shell from the buffer line to the circulating conveying mechanism; the running track of the conveying line of the circulating conveying mechanism is annular, the conveying line is provided with a substrate feeding station, a shell feeding station and a pressing station, the carrier is installed on the conveying line, the carrier is provided with a flange for supporting the substrate and a limit groove for supporting the shell; the pressing mechanism is located on the pressing station, including a pressing limit device and a pressing device, the conveying line can convey the carrier to between the two; the first pressing member of the pressing limit device can go down until it abuts against the top of the shell, and the second pressing member can go up and extend into the carrier until the substrate is pushed into the shell. The assembly efficiency and precision of the present invention are high, and the versatility is strong.

Description

Technical Field

[0001] The invention belongs to the technical field of assembly equipment, and in particular relates to a press-assembly machine for light-emitting devices. Background Art

[0002] A light-emitting device usually includes a light source and a light-transmitting shell for protecting the light source, wherein the light source is usually welded on a PCB substrate. When assembling the light-emitting device, it is necessary to first insert a power cord and a resistance wire on the entire substrate, then divide the entire board into individual substrates, then put the shell upside down into the carrier, put the substrate directly above the shell, and then use a die to press the substrate into the shell, then turn the shell over and manually bend the wire. This assembly method consumes a lot of man-hours, and the assembly accuracy depends on the proficiency of the workers, which cannot be reliably guaranteed.

[0003] In addition, the existing pressing device can usually only be used for the assembly of a shell and a substrate of one specification, and is difficult to change the model, inflexible to operate, poor in versatility, and difficult to promote. Summary of the invention

[0004] The object of the present invention is to provide a press-assembly machine for light-emitting devices to solve the problems of low assembly efficiency, difficulty in ensuring precision and quality, and poor versatility.

[0005] The present invention provides the following technical solutions:

[0006] A press-fitting machine for light-emitting devices, comprising a shell feeding mechanism, a circulating conveying mechanism and a pressing mechanism;

[0007] The shell loading mechanism includes a shell magazine and a shell loading device, the shell magazine includes a tray for flatly storing a plurality of shells; the shell loading device includes a pre-loading device, a cache line and a final loading device, the manipulator of the pre-loading device can grab a row of shells from the tray to the cache line; the manipulator of the final loading device can absorb a row of shells from the cache line to the circulating conveying mechanism;

[0008] The cyclic conveying mechanism comprises a conveying line, a driving device and a carrier. The running track of the conveying line is a horizontal ring. The conveying line is driven by the driving device to circulate. The conveying line is provided with a substrate loading station, a shell loading station and a pressing station. The carrier is detachably mounted on the conveying line. The carrier is provided with a flange for supporting the substrate and a ring-shaped limiting groove for supporting the shell. The flange is located on the inner side of the limiting groove. Before the pressing action, the substrate is pre-placed in the open part of the bottom of the shell.

[0009] The pressing mechanism is located on the pressing station, and the pressing mechanism includes a pressing limit device and a pressing device installed relatively to each other. The conveyor line can intermittently convey the carrier to between the pressing limit device and the pressing device. The output ends of the pressing limit device and the pressing device are respectively installed with a first pressing member and a second pressing member. The first pressing member can descend until it abuts against the top of the shell. The bottom of the carrier is provided with a socket for inserting the second pressing member. The second pressing member can ascend and extend into the socket until the substrate is pushed into the shell and is interference fit with the shell.

[0010] Preferably, the conveyor line includes a frame, the frame is provided with a ring-shaped conveying track, a plurality of conveying plates moved by the driving device are slidably installed in the conveying track, and the carrier is fixedly installed on the conveying plates; the plurality of conveying plates are all installed on a belt; the driving device includes a driving motor and a pulley installed on the output shaft of the driving motor, and the pulley engages with the belt to drive the belt to operate.

[0011] Furthermore, the circulating conveying mechanism also includes a secondary positioning device for precisely positioning the carrier, and the secondary positioning device is installed at the pressing station of the conveying line; the secondary positioning device includes a flipping drive, a rotating shaft, a first transmission arm, a connecting rod, a pressure plate and a positioning pin, the flipping drive is installed on the frame, the flipping drive is drivingly connected to the rotating shaft to rotate the rotating shaft, the root of the first transmission arm is fixed to the rotating shaft, the free end of the first transmission arm is hinged to the connecting rod, the other end of the connecting rod is hinged to the pressure plate, the bottom of the pressure plate is fixed to the positioning pin, and a pin hole matching the diameter of the positioning pin is provided on the conveying plate, and the flipping drive can change the height of the positioning pin so that the positioning pin is inserted into the pin hole closest to the positioning pin.

[0012] Preferably, the flip driving member is a rocker arm cylinder, and a second transmission arm is hinged on the output rod of the rocker arm cylinder. The rocker arm cylinder can drive the second transmission arm to rotate forward or reverse, and the root of the second transmission arm is also fixedly connected to the rotating shaft.

[0013] Preferably, a support frame is installed at the bottom of the frame body, and the flip driving member is fixed on the support frame; two oil pressure buffers are relatively installed on the support frame, and the free end of the second transmission arm is located between the two oil pressure buffers, and the second transmission arm alternately abuts against the two oil pressure buffers when rotating forward and reverse to the position.

[0014] Preferably, at least two guide tubes are installed on the frame along the vertical direction, and a guide column adapted to the inner hole of the guide tube is installed on the pressure plate, and the guide column is inserted into the guide tube, and the guide column guides the pressure plate during the lifting and lowering process of the pressure plate.

[0015] Preferably, a plurality of flanges are arranged at intervals on the same horizontal circumference in the carrier, and a plurality of top blocks are arranged at intervals on the top of the second clamping member on the same horizontal circumference, and the top blocks can pass through the gap between two adjacent flanges to lift up the substrate.

[0016] Preferably, the manipulator of the pre-loading device is installed on the first XY-axis module, and the manipulator of the pre-loading device includes a support plate and a shell grabbing assembly and a tray suction assembly installed on the support plate, and the shell grabbing assembly includes a first cylinder and a clamping plate driven to open and close by the first cylinder, and the clamping plate is provided with a row of clamping grooves for clamping the shell; the tray suction assembly includes a second cylinder and a suction cup installed on the output end of the second cylinder, and the second cylinder can lift the suction cup, and the suction cup is connected to a negative pressure generator, and the first XY-axis module can transfer the suction cup with the empty pallet adsorbed to the top of the empty pallet magazine.

[0017] Furthermore, the cache line is located in the annular space enclosed by the conveying track, and the first XY-axis module can move the clamping plate with the shell gripped to just above the cache line; a conveyor belt for conveying the shell to one side of the final loading device is provided on the cache line.

[0018] Preferably, the final loading device includes a second XY-axis module and a variable-distance grabbing assembly installed on the second XY-axis module, the variable-distance grabbing assembly is used to grab a row of shells spaced apart on the conveyor belt to the shell loading station of the conveyor line, and change the distance of the grabbed shells to match the carrier spacing on the shell loading station; the second XY-axis module is used to transplant the variable-distance grabbing assembly to directly above the cache line.

[0019] Furthermore, the variable-pitch grabbing assembly includes a lifting screw, a connecting plate, a variable-pitch driving member, a connecting rod assembly and a finger cylinder, the lifting screw is installed on the X-axis module of the second XY-axis module, the connecting plate is vertically installed on the slider of the lifting screw, and the lifting screw is used to change the height of the finger cylinder; the variable-pitch driving member is installed on the connecting plate along the X-axis direction, and the connecting rod assembly includes a plurality of slides, wherein the slide at the end is a fixed slide fixed relative to the connecting plate, and the other slides are movable slides that can slide horizontally, and one of the movable slides is fixedly connected to the slider of the variable-pitch driving member; each of the slides is cross-hinged with two transmission rods, and the adjacent ends of the transmission rods are also hinged to each other; each of the slides is installed with a finger cylinder for clamping the shell.

[0020] Preferably, the connecting plate is provided with a guide rail strut extending along the X-axis direction, and a linear guide rail is installed on the guide rail strut; each movable slide is adaptively installed on the linear guide rail, and the linear guide rail is used to guide the translation of the movable slide.

[0021] The beneficial effects of the present invention are:

[0022] The overall layout of the present invention includes a shell feeding mechanism, a circulating conveying mechanism and a pressing mechanism. The various mechanisms cooperate with each other in an orderly manner to realize a series of automated operations such as feeding, conveying and pressing of workpieces, thereby improving assembly efficiency and accuracy and ensuring stable assembly quality.

[0023] The present invention loads the shells by first grabbing the shells to the buffer line through a pre-loading device, and then using a final loading device to adsorb the shells to the conveyor line after the shells are neatly arranged on the buffer line, wherein the final loading device adopts variable distance loading, so that the spacing of the shells can be flexibly adapted to the spacing of the carriers on the conveyor line, thereby improving the versatility of the setting.

[0024] The pressing mechanism of the present invention can match shells of different specifications by replacing carriers of different heights, so that the tops of different shells can fit with the pressure cavity of the first clamping member, thereby maintaining a unified pressing reference surface, ensuring the accuracy of the pressing action, and further improving the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 is a schematic diagram of the structure of the housing and the substrate of the present invention being located on a carrier;

[0027] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 4 It is a schematic structural diagram of the pre-loading device of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the final feeding device of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a variable-distance grabbing assembly of a final feeding device of the present invention;

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the circulating conveying mechanism of the present invention;

[0033] Figure 8 is a three-dimensional structural schematic diagram of the circulating conveying mechanism of the present invention from another viewing angle;

[0034] Fig. 9 yes Figure 8 A magnified schematic diagram of part A;

[0035] Fig.10 yes Figure 8 A magnified schematic diagram of part B;

[0036] Fig.11 is a schematic diagram of the positional relationship between the carrier and the second pressing member of the present invention;

[0037] Fig.12 It is a schematic structural diagram of the first pressing member of the present invention.

[0038] The markings in the figure are:

[0039] 11. Shell; 12. Base plate;

[0040] 200. Shell loading mechanism; 210. Working magazine; 211. X-axis reference; 212. Y-axis reference; 220. Empty pallet magazine; 230. Pallet; 231. Positioning block; 240. Pre-loading device; 241. First XY axis module; 242. Support plate; 243. First cylinder; 244. Clamping plate; 245. Clamping groove; 246. Third cylinder; 247. Second cylinder; 248. Suction cup; 250. Cache line; 260. Final loading device; 261. Second XY axis module; 262. Variable pitch grab assembly; 2621. Lifting screw; 2622. Connecting plate; 2623. Variable pitch drive member; 2624. Finger cylinder; 2625. Guide rail stay; 2626. Linear guide; 2627. Fixed slide; 2628. Moving slide; 2629. Transmission rod;

[0041] 300. Circular conveying mechanism; 310. Conveying line; 311. Substrate loading station; 312. Shell loading station; 313. Pressing station; 314. Frame; 315. Conveying plate; 316. Limiting edge; 317. Pin hole; 320. Driving device; 321. Belt; 322. Driving motor; 323. Pulley; 324. Transmission wheel; 330. Carrier; 331. Flange; 332. Limiting groove; 333. Socket;

[0042] 400. Pressing mechanism; 410. Pressing limit device; 411. First pressing member; 412. Pressing chamber; 413. Line chamber; 420. Pressing device; 421. Second pressing member; 422. Top block;

[0043] 500. Secondary positioning device; 510. Turning drive member; 511. Rotating shaft; 512. First transmission arm; 513. Second transmission arm; 514. Connecting rod; 515. Pressing plate; 516. Positioning pin; 517. Support frame; 518. Oil pressure buffer; 519. Guide tube; 520. Guide column. DETAILED DESCRIPTION

[0044] Example 1

[0045] A light emitting device press machine is used to press a housing 11 and a substrate 12 of a light emitting device into an integral component, such as Figure 1 As shown, the housing 11 is a trumpet-shaped structure that is narrow at the top and wide at the bottom. Figure 2 and Figure 3 As shown, the press machine mainly includes a shell loading mechanism 200 , a substrate loading mechanism, a circulating conveying mechanism 300 and a pressing mechanism 400 .

[0046] The shell loading mechanism 200 includes a shell magazine and a shell loading device, wherein the shell magazine includes two groups of parallel working magazines 210 and empty pallet magazines 220, and the working magazines 210 and the empty pallet magazines 220 are both provided with multi-layer trays 230 for flatly storing a plurality of shells, and the trays 230 are arrayed with positioning blocks 231 for positioning the shells, and the shells 11 are buckled on the positioning blocks 231 during loading; the tray 230 is intermittently lifted to a set height by a lifting module to facilitate the robot to grab the shell 11; when all the shells on the tray 230 are removed, the robot will absorb the empty pallet into the empty pallet magazine 220, and the empty pallet will be lowered by the lifting module of the empty pallet magazine to facilitate the storage of the next empty pallet.

[0047] Among them, Figure 2 As shown, the working magazine 210 is provided with an X-axis reference 211 and a Y-axis reference 212, and the intersection of the X-axis reference 211 and the Y-axis reference 212 is located at the upper left corner of the pallet. When the pallet 230 is loaded onto the working magazine 210, for pallets of different sizes, the upper left corner of the pallet must be aligned with the intersection of the X-axis reference 211 and the Y-axis reference 212, so as to facilitate the pre-loading device 240 to accurately locate the original coordinates of the grabbing point.

[0048] The shell loading device includes a pre-loading device 240, a cache line 250 and a final loading device 260. The robot of the pre-loading device 240 can grab a row of shells from the tray of the working magazine 210 to the cache line 250; the robot of the final loading device 260 can absorb a row of shells from the cache line 250 to the circulating conveying mechanism 300.

[0049] Among them, the robot of the pre-loading device 240 is installed on the first XY axis module 241, and the first XY axis module 241 can move the robot of the pre-loading device in the XY plane. The robot of the pre-loading device includes a support plate 242 and a shell grasping component and a tray suction component installed on the support plate 242.

[0050] like Figure 4 As shown, the support plate 242 is mounted on the Y-axis module slider of the first XY-axis module 241, and the shell grabbing assembly includes a first cylinder 243 and a pair of clamping plates 244 driven by the first cylinder 243 to open and close. The clamping plates 244 are provided with a row of clamping grooves 245 for clamping the shell. In this embodiment, the number of the clamping grooves 245 is seven, and other numbers can also be selected. When taking materials, the first cylinder 243 drives the pair of clamping plates 244 to move toward each other until the shell 11 is clamped in the clamping grooves 245. A third cylinder 246 with a lifting function can be installed on the support plate 242, and the first cylinder 243 is installed on the third cylinder 246, so that the clamping plates 244 can be slightly lifted after clamping the shell to prevent the clamping plates 244 from interfering with the tray below them during the movement process.

[0051] The tray suction assembly includes a second cylinder 247 and a suction cup 248 mounted on the output end of the second cylinder 247. The second cylinder 247 is mounted on the support plate 242. The number of suction cups is preferably two groups, each group has at least two suction cups, and the two groups of suction cups are respectively located on the front and rear sides of the clamping plate 244. The second cylinder 247 can lift and lower the suction cup 248, and the suction cup 248 is connected to the negative pressure generator. When the empty tray on the working magazine 210 needs to be removed, the first XY axis module 241 moves the suction cup 248 to the top of the empty tray. The second cylinder 247 first lowers the suction cup 248 to make the suction cup close to the empty tray, and then opens the solenoid valve connected to the suction cup air pipe, so that the suction cup 248 firmly adsorbs the positioning block 231 on the tray to suck up the tray. The second cylinder 247 then lifts the suction cup 248, and then the first XY axis module 241 moves the suction cup 248 to the top of the empty tray magazine 220, and then the suction cup breaks the vacuum to remove the empty tray.

[0052] The device integrates the shell grabbing component and the tray suction component on the pre-feeding device, the actions of the two do not interfere with each other, and the space occupied is small, thereby improving the compactness of the device.

[0053] like Figure 7 and Figure 8As shown, the circulating conveying mechanism 300 includes a conveying line 310, a driving device 320 and a carrier 330. The running track of the conveying line 310 is a horizontal ring. The conveying line 310 is driven by the driving device 320 to operate in a circular manner. A substrate loading station 311, a shell loading station 312 and a pressing station 313 are provided on the conveying line 310. When working, the substrate 12 is first transferred to the substrate loading station 311, and then the shell 11 is loaded on the shell loading station 312, and the shell 11 is placed above the substrate 12, and then the substrate 12 is pressed into the shell 11 at the pressing station 313.

[0054] Specifically, the conveyor line 310 includes a frame 314, on which an annular conveying track is provided. A plurality of conveying plates 315 moved by a driving device 320 are slidably installed in the conveying track. The outer wall of the conveying track is provided with a strip-shaped limiting groove, and the opening of the limiting groove is horizontally facing the inner side of the conveying track. The outer side of the conveying plate 315 is provided with a limiting edge 316 that can be horizontally inserted into the limiting groove, and the limiting edge 316 of the conveying plate 315 can slide along the limiting groove; the other side of the conveying plate 315 is bolted to a belt 321, and the belt 321 drives each conveying plate 315 to move in the conveying track. The driving device 320 includes a driving motor 322 and a pulley 323 installed on the output shaft of the driving motor 322. The pulley 323 engages with the belt 321 to drive the belt to rotate. The pulleys 323 are installed at two diagonal positions of the conveying track, and the other two diagonal positions are installed with transmission wheels 324 that engage with the belt 321. The transmission wheel 324 cooperates with the pulley 323 to simultaneously drive the belt 321 to circulate.

[0055] The plurality of carriers 330 are detachably fixed to each conveying plate 315 by bolts. Figure 1 and Fig.11 As shown, the carrier 330 is provided with a flange 331 for supporting the substrate 12 and an annular limiting groove 332 for supporting the shell 11. The flange 331 is located on the inner side of the limiting groove 332. Before the pressing action is performed, the substrate 12 is pre-placed in the open part at the bottom of the shell 11, and the two are non-fixedly connected.

[0056] like Figure 7As shown, the pressing mechanism 400 is located on the pressing station 313, and the pressing mechanism 400 includes a pressing limit device 410 and a pressing device 420 installed relatively to each other. The conveyor line 310 can intermittently convey the carrier 330 to between the pressing limit device 410 and the pressing device 420. The driving parts of the pressing limit device 410 and the pressing device 420 are both cylinders. The first pressing member 411 and the second pressing member 421 are respectively installed on the cylinder piston rods of the pressing limit device 410 and the pressing device 420. The first pressing member 411 can go down until it abuts against the top of the shell 11, and limit the height of the shell to prepare for the pressing device 420 to press the substrate 12, wherein, as shown in FIG. Fig.12 As shown, the bottom of the first clamping member 411 has a pressure cavity 412 that is shaped like the top of the shell 11 and a wire cavity 413 for inserting the wire. The pressure cavity 412 can stably press the top of the shell to limit the shell, and the wire cavity 413 can avoid the wire inserted on the substrate 12 to prevent interference with the wire during pressing.

[0057] The bottom of the carrier 330 is provided with an insertion hole 333 for inserting the second pressing member 421. The second pressing member 421 can move upward and extend into the insertion hole 333 until the substrate 12 is pushed into the shell 11, so that it is interference-fitted with the shell 11 and the two are fixedly connected. Among them, the carriers 330 of different heights can be replaced so that the tops of shells of different specifications are all located on the same horizontal pressing reference plane to compensate for the height difference of the shell 11 itself, so that the pressing device 420 can be reliably matched with the pressing limit device 410, thereby improving the versatility of the pressing mechanism.

[0058] Preferably, a plurality of flanges 331 are disposed at intervals on the same horizontal circumference in the carrier 330, and a plurality of top blocks 422 are disposed at intervals on the same horizontal circumference on the top of the second pressing member 421. The top blocks 422 and the flanges 331 are staggered from each other, so that the top blocks 422 are driven by the second pressing member 421 to pass through the gap between two adjacent flanges 331 and lift up the substrate 12. The cooperation between the flanges 331 and the top blocks 422 can both reliably support the substrate and lift up the substrate, and the two actions do not interfere with each other.

[0059] Furthermore, a shell buffer station is provided on the buffer line 250, and the shell buffer station is located in the annular space enclosed by the conveying track. The first XY axis module 241 can move the clamping plate 244 holding the shell to the top of the shell buffer station, and the first cylinder 243 releases the clamping plate 244 to drop the shell onto the conveyor belt of the shell buffer station, and then the shells on the conveyor belt are sorted in a uniform direction, and then the conveyor belt conveys the shell to one side of the final feeding device 260. The conveyor belt of the shell buffer station is installed along the X-axis direction.

[0060] like Figure 5 and Figure 6As shown, the final loading device 260 includes a second XY axis module 261 and a variable distance grabbing assembly 262 mounted on the second XY axis module 261. The second XY axis module 261 can move the variable distance grabbing assembly 262 in the XY plane to grab a row of shells spaced apart on the conveyor belt on the shell buffer station to just above the shell loading station 312. At the same time, the variable distance grabbing assembly 262 changes the distance of the grabbed shells to match the carrier spacing on the shell loading station 312, so as to achieve accurate loading of the shells.

[0061] Specifically, Figure 6 As shown, the variable pitch grab assembly 262 includes a lifting screw 2621, a connecting plate 2622, a variable pitch drive 2623, a connecting rod assembly and a finger cylinder 2624. The lifting screw 2621 is installed on the X-axis module of the second XY-axis module 261, and the connecting plate 2622 is vertically installed on the slider of the lifting screw 2621. The lifting screw 2621 can change the height of the finger cylinder 2624 so that it can clamp the shell from the conveyor belt. The variable pitch drive 2623 is installed on the connecting plate 2622 along the X-axis direction, and the variable pitch drive 2623 is an electric screw; the connecting plate 2622 is provided with a guide rail stay 2625 extending along the X-axis direction, and a linear guide rail 2626 is installed on the guide rail stay 2625. The connecting rod assembly includes a plurality of slides adaptively mounted on the linear guide 2626, wherein the slide at the end is a fixed slide 2627, which is fixedly mounted on the linear guide 2626, and the other slides are movable slides 2628 that can slide along the linear guide 2626, and one of the movable slides 2628 is fixedly connected to the slider of the variable pitch drive 2623; two transmission rods 2629 are hinged in a cross shape on each slide, and the ends of adjacent transmission rods 2629 are also hinged to each other. A finger cylinder 2624 is installed on each slide for clamping the shell on the conveyor belt. The variable pitch drive 2623 can translate the movable slide 2628 connected thereto, thereby driving the other movable slides to translate along the linear guide 2626, so as to automatically change the crossing angle between the transmission rods 2629, realize the variable pitch control of the finger cylinder 2624, and make the spacing of the finger cylinder 2624 successively adapt to the shell spacing on the conveyor belt and the carrier spacing on the conveyor line.

[0062] The working process of this embodiment is:

[0063] Place the tray 230 loaded with the shells 11 on the working magazine 210 so that the upper left corner of the tray 230 is aligned with the intersection of the X-axis reference 211 and the Y-axis reference 212;

[0064] The first XY axis module 241 is started to drive the clamping plate 244 of the pre-loading device to move to the set coordinate point. The first cylinder 243 drives the clamping plate 244 to clamp a row of shells. Then the third cylinder 246 lifts the clamping plate 244. The first XY axis module 241 transfers the clamping plate 244 to the conveyor belt of the cache line 250. The shells are arranged on the conveyor belt, and the protrusions on the top of the shells are arranged in a uniform direction. The conveyor belt transports the shells to the bottom of the finger cylinder of the final loading device 260.

[0065] At the same time, another robot loads a row of substrates 12 onto the carrier of the substrate loading station 311, and the conveyor line 310 conveys the carrier with the substrates 12 to the shell loading station 312;

[0066] The finger cylinder 2624 is driven downward by the lifting screw 2621 to grab the shell from the transmission belt, and the second XY axis module 261 is started to move the finger cylinder 2624 to the shell loading station 312 of the conveyor line. During this process, the variable pitch driving member of the variable pitch grabbing assembly 262 drives the finger cylinder 2624 to translate and change their spacing to match the spacing of the carrier 330 on the conveyor line; then the lifting screw 2621 drives the finger cylinder 2624 downward to place a row of shells on the carrier of the shell loading station 312;

[0067] The conveyor line 310 stops running after conveying the shell to the pressing station 313, and the cylinder of the pressing limit device 410 drives the first pressing member 411 downward until it abuts against the top of the shell, and the shell 11 is limited in height direction, so as to prepare for the pressing device 420 to press the substrate 12; the cylinder of the pressing device 420 drives the second pressing member 421 upward and inserts it into the insertion hole 333 of the carrier, until its top block 422 passes through the gap of the flange 331 of the carrier and pushes the substrate 12 into the shell 11, so that the substrate 12 and the shell 11 are interference-fitted, and the pressing assembly of the product is completed;

[0068] The conveyor line 310 conveys the assembled semi-finished product to the next process: bending the wire on the substrate 12 toward the outside of the shell so that the bent portion is close to the top outer edge of the shell, and then taking the product from the conveyor line 310.

[0069] Example 2

[0070] This embodiment adds a secondary positioning device 500 for precise positioning of the carrier on the basis of the embodiment 1 to ensure the pressing accuracy of the workpiece. Figures 8 to 10As shown, the secondary positioning device 500 is installed at the substrate loading station 311 and the pressing station 312 of the conveyor line, and includes a support frame 517, a flip drive member 510, a rotating shaft 511, a first transmission arm 512, a second transmission arm 513, a connecting rod 514, a pressure plate 515 and a positioning pin 516. The support frame 517 is installed at the bottom of the frame 314 of the conveyor line, and the flip drive member 510 is fixed on the support frame 517. The flip drive member 510 is a rocker cylinder, and the second transmission arm 513 is hinged on its output rod. The root of the second transmission arm 513 is fixed to the rotating shaft 511 by bolts. The rocker cylinder can drive the second transmission arm 513 to rotate forward or reverse, thereby driving the rotating shaft 511 to rotate. The root of the first transmission arm 512 is also fixed to the rotating shaft 511, and the free end of the first transmission arm 512 is hinged to the connecting rod 514, and the other end of the connecting rod 514 is hinged to the pressing plate 515. In the initial state, there is an angle between the first transmission arm 512 and the connecting rod 514. The bottom of the pressing plate 515 is fixed to the positioning pin 516, and the conveying plate 315 is provided with a pin hole 317 that matches the diameter of the positioning pin 516. The positioning pin 516 can be inserted into the pin hole 317 closest to the positioning pin, so as to slightly correct the position of the conveying plate 315 to ensure the pressing accuracy.

[0071] Before the conveying plate 315 moves, the flip driving member 510 drives the rotating shaft 511 to rotate clockwise, and the rotating shaft 511 drives the first transmission arm 512 to rotate relative to the connecting rod 514, thereby increasing the angle between the first transmission arm 512 and the connecting rod 514, and then lifting the pressing plate 515, so that the positioning pin 516 is disengaged from the pin hole 317 of the pressing plate, so as to facilitate the smooth movement of the conveying plate; after the conveying plate 315 carrying the substrate 12 and the shell 11 moves to the pressing station 313 and stops moving, the flip driving member 510 drives the rotating shaft 511 to rotate in the opposite direction, and accordingly, the angle between the first transmission arm 512 and the connecting rod 514 is reduced, and the positioning pin 516 descends and is inserted into the corresponding pin hole 317, so as to perform secondary precision positioning on the conveying plate 315 to prevent the carrier from deviating from the target coordinates.

[0072] like Fig.10 As shown, two oil pressure buffers 518 are relatively installed on the support frame 517, and the free end of the second transmission arm 513 is located between the two oil pressure buffers 518. When the second transmission arm 513 rotates forward and reverses to the right position, it flexibly abuts against the two oil pressure buffers 518 alternately, thereby reducing the vibration of the second transmission arm 513.

[0073] At least two guide tubes 519 are installed on the frame 314 in the vertical direction, and a guide column 520 adapted to the inner hole of the guide tube 519 is installed on the pressure plate 515. When the pressure plate 515 moves up and down, the guide column 520 is always inserted into the guide tube 519 to guide the movement of the pressure plate 515.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A press machine for light emitting devices, characterized in that: It includes a shell feeding mechanism, a circulating conveying mechanism and a pressing mechanism; The shell loading mechanism includes a shell magazine and a shell loading device, the shell magazine includes a tray for flatly storing a plurality of shells; the shell loading device includes a pre-loading device, a cache line and a final loading device, the manipulator of the pre-loading device can grab a row of shells from the tray to the cache line; the manipulator of the final loading device can absorb a row of shells from the cache line to the circulating conveying mechanism; The cyclic conveying mechanism comprises a conveying line, a driving device and a carrier. The running track of the conveying line is a horizontal ring. The conveying line is driven by the driving device to circulate. The conveying line is provided with a substrate loading station, a shell loading station and a pressing station. The carrier is detachably mounted on the conveying line. The carrier is provided with a flange for supporting the substrate and a ring-shaped limiting groove for supporting the shell. The flange is located on the inner side of the limiting groove. Before the pressing action, the substrate is pre-placed in the open part of the bottom of the shell. The pressing mechanism is located on the pressing station, and includes a pressing limit device and a pressing device installed relatively to each other. The conveyor line can intermittently convey the carrier to between the pressing limit device and the pressing device. The output ends of the pressing limit device and the pressing device are respectively installed with a first pressing member and a second pressing member. The first pressing member can move downward until it abuts against the top of the shell. The bottom of the carrier is provided with a socket for inserting the second pressing member. The second pressing member can move upward and extend into the socket until the substrate is pushed into the shell to achieve interference fit with the shell. The conveyor line comprises a frame, on which a circular conveyor track is arranged, in which a plurality of conveyor plates moved by the driving device are slidably mounted, and the carrier is fixedly mounted on the conveyor plates; the plurality of conveyor plates are all mounted on a belt; the driving device comprises a driving motor and a pulley mounted on an output shaft of the driving motor, and the pulley engages with the belt to drive the belt to operate; The circulating conveying mechanism also includes a secondary positioning device for accurately positioning the carrier, and the secondary positioning device is installed at the pressing station of the conveying line; the secondary positioning device includes a flip driving member, a rotating shaft, a first transmission arm, a connecting rod, a pressing plate and a positioning pin, the flip driving member is installed on the frame, the flip driving member is drivingly connected to the rotating shaft to rotate the rotating shaft, the root of the first transmission arm is fixed to the rotating shaft, the free end of the first transmission arm is hinged to the connecting rod, the other end of the connecting rod is hinged to the pressing plate, the bottom of the pressing plate is fixed to the positioning pin, the conveying plate is provided with a pin hole matching the diameter of the positioning pin, the flip driving member can change the height of the positioning pin so that the positioning pin is inserted into the pin hole closest to the positioning pin; The manipulator of the pre-loading device is installed on the first XY-axis module. The manipulator of the pre-loading device includes a support plate and a shell grabbing assembly and a tray suction assembly installed on the support plate. The shell grabbing assembly includes a first cylinder and a clamping plate driven by the first cylinder to open and close, and the clamping plate is provided with a row of clamping grooves for clamping the shell; the tray suction assembly includes a second cylinder and a suction cup installed on the output end of the second cylinder, the second cylinder can lift the suction cup, and the suction cup is connected to a negative pressure generator. The first XY-axis module can move the suction cup with the empty pallet adsorbed to the top of the empty pallet magazine.

2. The press-fitting machine for light emitting devices according to claim 1, characterized in that: The flip driving member is a rocker cylinder, and a second transmission arm is hinged on the output rod of the rocker cylinder. The rocker cylinder can drive the second transmission arm to rotate forward or reverse, and the root of the second transmission arm is also fixedly connected to the rotating shaft.

3. The press-fitting machine for light emitting devices according to claim 2, characterized in that: A support frame is installed at the bottom of the frame body, and the flip driving component is fixed on the support frame; two oil pressure buffers are installed oppositely on the support frame, and the free end of the second transmission arm is located between the two oil pressure buffers. The second transmission arm alternately abuts against the two oil pressure buffers when rotating forward and reversely.

4. The press-fitting machine for light emitting devices according to claim 1, characterized in that: At least two guide tubes are installed on the frame along the vertical direction, and a guide column adapted to the inner hole of the guide tube is installed on the pressure plate. The guide column is inserted into the guide tube, and the guide column guides the pressure plate during the lifting and lowering process of the pressure plate.

5. The press-fitting machine for light emitting devices according to claim 1, characterized in that: A plurality of flanges are arranged at intervals on the same horizontal circumference in the carrier, and a plurality of top blocks are arranged at intervals on the top of the second pressing member on the same horizontal circumference. The top blocks can pass through the gap between two adjacent flanges and then lift up the substrate.

6. The press-fitting machine for light emitting devices according to claim 1, characterized in that: The cache line is located in the annular space enclosed by the conveying track, and the first XY axis module can move the clamping plate with the shell gripped to just above the cache line; a conveyor belt for conveying the shell to one side of the final loading device is provided on the cache line.

7. The press-fitting machine for light emitting devices according to claim 6, characterized in that: The final loading device includes a second XY-axis module and a variable-distance grabbing assembly installed on the second XY-axis module, the variable-distance grabbing assembly is used to grab a row of shells spaced apart on the conveyor belt to the shell loading station of the conveyor line, and change the distance of the grabbed shells to match the carrier spacing on the shell loading station; the second XY-axis module is used to move the variable-distance grabbing assembly to directly above the cache line.

8. The press-fitting machine for light emitting devices according to claim 7, characterized in that: The variable pitch grab assembly includes a lifting screw, a connecting plate, a variable pitch drive, a connecting rod assembly and a finger cylinder. The lifting screw is installed on the X-axis module of the second XY-axis module, and the connecting plate is vertically installed on the slider of the lifting screw. The lifting screw is used to change the height of the finger cylinder; the variable pitch drive is installed on the connecting plate along the X-axis direction, and the connecting rod assembly includes a plurality of slides, each of which is equipped with a finger cylinder for clamping the shell; one of the slides at the end is a fixed slide fixed relative to the connecting plate, and the other slides are all movable slides that can slide horizontally, and one of the movable slides is fixedly connected to the slider of the variable pitch drive; each of the slides is cross-hinged with two transmission rods, and the adjacent ends of the transmission rods are also hinged to each other.

9. The press-fitting machine for light emitting devices according to claim 8, characterized in that: The connecting plate is provided with a guide rail strut extending along the X-axis direction, and a linear guide rail is installed on the guide rail strut; each movable slide is adaptively installed on the linear guide rail, and the linear guide rail is used to guide the translation of the movable slide.

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