Full-automatic welding and testing all-in-one machine

Abstract

The utility model relates to a full-automatic welding and testing all-in-one machine which comprises a working table provided with a rotary table, jigs arranged on the rotary table, a feeding position, a testing position, a welding position and a discharging position. The feeding device, the testing device, the welding device and the discharging device are arranged on the feeding position and the testing position respectively. The feeding device carries and stacks a plurality of sheet materials forming a keyboard circuit board on a jig at a feeding position, the testing device carries out electrical function testing on the sheet materials at a testing position, the welding device carries out welding operation on the sheet materials at a welding position, and the discharging device carries the keyboard circuit board at a discharging position away from the rotary disc. The feeding device comprises a feeding table and a feeding mechanical arm, the feeding table is provided with a plurality of material frames, and at the feeding height, the feeding mechanical arm sucks the sheet materials on the uppermost layer and cooperates with material distribution needles on the material frames to conduct material distribution operation in the process of lifting the sheet materials. According to the utility model, full-automatic welding and testing of the keyboard circuit board are realized, the production efficiency and the production quality are improved, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of keyboard circuit board production equipment, in particular to a full-automatic welding and testing integrated machine. Background Art

[0002] The keyboard circuit board is an important component that connects the keys and control circuits in the keyboard. In the production process of the keyboard circuit board, the material division and stacking of the keyboard circuit board are difficult points. The current keyboard circuit boards are mostly made of PET material, and are formed by welding and fixing the upper, middle and lower three-layer substrates. These three layers of substrates are all thin sheets with very small thickness. Before being assembled into the keyboard circuit board, these thin sheets are stacked into a very thick stack, and each sheet of thin sheet material is squeezed very tightly, resulting in no air between the upper and lower layers of thin sheet materials, thereby forming a negative pressure. When the keyboard circuit board needs to be assembled and loaded, it is difficult to separate. It is often the case that two sheets of thin sheet materials are loaded onto the welding equipment together, or separated by rubbing them apart with manual fingers, which is inefficient. At the same time, on the welding equipment, the upper, middle and lower three layers of thin sheet materials need to be stacked together in sequence, and then fixed into the keyboard circuit board by welding. Due to the large size of the product and the extremely small thickness, it is difficult to flatten and align the thin sheet materials manually, making it difficult to ensure the uniformity of the stacking process, affecting the yield and efficiency of production and increasing production costs. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a fully automatic welding and measuring integrated machine.

[0004] The utility model provides a fully automatic welding and testing integrated machine, comprising a workbench provided with a turntable, the turntable being provided with a fixture for placing a keyboard circuit board, the turntable driving the fixture to circulate in a loading position, a testing position, a welding position and a unloading position in sequence, the loading position, the testing position, the welding position and the unloading position being provided with a loading device, a testing device, a welding device and an unloading device respectively, the loading device transports a plurality of thin sheet materials constituting the keyboard circuit board and stacks them on the fixture at the loading position, the testing device performs an electrical function test on the plurality of thin sheet materials at the testing position, the welding device performs welding operation on the plurality of thin sheet materials at the welding position, and the unloading device moves the keyboard circuit board at the unloading position away from the turntable; The loading device includes a loading platform and a loading robot. The loading platform is provided with a plurality of material racks, and the plurality of material racks are arranged side by side along the moving direction of the loading robot. The plurality of material racks respectively place a plurality of thin sheet materials constituting a keyboard circuit board. The loading robot reciprocates between the loading platform and the turntable to transport the corresponding thin sheet materials in the plurality of material racks in turn and stack them on a jig at the loading position. The loading platform is provided with a lifting component at each material rack, and the lifting component lifts the thin sheet materials in the material rack to a loading height. At the loading height, the loading robot absorbs the topmost layer of thin sheet materials, and cooperates with the dividing needles on the material rack to perform dividing operations during the process of lifting the thin sheet materials.

[0005] In some embodiments, the material rack includes a base plate, a limit plate, a support plate, a positioning sleeve, and a lifting connection piece. The base plate is composed of a plurality of vertically arranged limit plates to form a material bin for placing thin film materials. The support plate is arranged in the material bin, the positioning sleeve is fixed on the base plate, the lifting connection piece is connected to the support plate, and the positioning sleeve and the lifting connection piece cooperate with each other. When the support plate is at the lowest height of the material bin, the lifting connection piece is inserted in the positioning sleeve.

[0006] In some embodiments, the dividing needle is vertically arranged on the base plate, and the dividing needle is inserted into the positioning hole of the thin film material in the silo. The dividing needle is provided with a bugle head at the loading height. When the loading robot lifts the top layer of thin film material, the bugle head is interference fit with the positioning hole of the thin film material through its own elastic force to separate the upper and lower layers of thin film material.

[0007] In some embodiments, the lifting assembly includes a top plate, a top rod, a lifting motor, a screw pair and a lifting guide rod. The top plate is vertically provided with multiple top rods, and the top rods are arranged toward the lifting connecting piece of the material rack. The lifting motor is transmission connected to the top plate through the screw pair, and the top plate is slidingly connected to the lifting guide rod. The lifting motor drives the top plate and the top rod to move up and down through the screw pair, and the top rod drives the support plate and the thin sheet material to move up and down through the lifting connecting piece.

[0008] In some embodiments, the jig is provided with a positioning pin, and the positioning pin cooperates with a positioning hole on the sheet material for positioning.

[0009] In some of the embodiments, the workbench is provided with a support frame for installing a test device above the turntable, and the test device includes a lifting cylinder, a lifting guide rod, a lifting plate and a test needle disk, the lifting cylinder is installed on the support frame, the lifting guide rod is arranged between the support frame and the workbench, the test needle disk is installed below the lifting plate, and a plurality of test needles arranged in a matrix are arranged on the test needle disk, the test needles are arranged toward a fixture of the test station, the lifting plate is transmission-connected to the lifting cylinder, and the lifting cylinder drives the lifting plate and the test needle disk to move up and down along the lifting guide rod.

[0010] In some of the embodiments, the welding device includes an ultrasonic generator and a moving platform, wherein the ultrasonic generator is located above the turntable and disposed toward the welding position.

[0011] In some embodiments, the unloading device includes a material receiving trough and a material unloading robot. The material receiving trough is arranged on the outside of the workbench, and the material unloading robot is arranged under the support frame. The material unloading robot moves back and forth between the material receiving trough and the turntable. The material unloading robot includes a finger cylinder for clamping the keyboard circuit board in the thickness direction.

[0012] In some of the embodiments, an outer edge of the jig is provided with an avoidance groove, and the finger cylinder clamps the keyboard circuit board on the jig at the avoidance groove.

[0013] In some embodiments, a supporting roller is provided under each jig of the turntable, and a supporting block is provided at the unloading position of the workbench. When the jig moves to the unloading position, the supporting roller moves to be directly under the supporting block and abuts against the supporting block.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the material flow between four workstations is realized by a turntable, the thin sheet materials are stacked in sequence on a jig by a loading device, the stacked thin sheet materials are subjected to electrical function tests by a testing device, and then the stacked thin sheet materials are ultrasonically welded by a welding device, and finally good products and defective products are separated and stacked into corresponding receiving troughs by a unloading device, thereby realizing fully automatic welding and testing of keyboard circuit boards, improving production efficiency, improving the production quality of keyboard circuit boards, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the fully automatic welding and measuring machine according to an embodiment of the present application.

[0016] Figure 2It is a schematic diagram of the top view of the fully automatic welding and measuring integrated machine according to an embodiment of the present application.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeding device of an embodiment of the present application.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the material rack of an embodiment of the present application.

[0019] Figure 5 It is a schematic diagram of the assembly structure of the workbench and the testing device of the embodiment of the present application.

[0020] Figure 6 It is a schematic diagram of the assembly structure of the workbench and the unloading robot of the embodiment of the present application.

[0021] Reference numerals: 101, loading position; 102, testing position; 103, welding position; 104, unloading position; 201, upper sheet material; 202, middle sheet material; 203, lower sheet material; 204, positioning hole; 205, loading height;

[0022] 1. Workbench; 11. Turntable; 12. Fixture; 13. Avoidance groove; 14. Positioning needle; 15. Support roller; 16. Support block; 17. Support frame;

[0023] 2. Loading device; 21. Loading platform; 22. Positioning plate; 23. Limiting block; 24. Loading manipulator; 241. Loading guide rail; 242. Loading motor; 243. Moving beam; 244. Mounting rod; 245. Removing cylinder; 246. Removing plate; 247. Vacuum nozzle; 25. Lifting assembly; 251. Top plate; 252. Top rod; 253. Lifting motor; 254. Screw pair; 255. Lifting guide rod; 26. Material rack; 261. Bottom plate; 262. Limiting plate; 263. Support plate; 264. Positioning sleeve; 265. Lifting connector; 266. Distributing needle; 267. Bugle head; 268. Handle;

[0024] 3. Test device; 31. Lifting cylinder; 32. Lifting guide rod; 33. Lifting plate; 34. Test needle plate; 35. Test needle; 36. Clamp;

[0025] 4. Welding device; 41. Ultrasonic generator; 42. Moving table; 43. Support seat; 44. Column; 45. Hand wheel adjustment assembly;

[0026] 5. Unloading device; 51. Receiving trough; 52. Unloading robot; 53. Unloading motor; 54. Unloading guide rail; 55. Connecting frame; 56. Finger cylinder. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.

[0028] refer to Figure 1 The figure is a schematic diagram of the three-dimensional structure of the fully automatic welding and testing machine. The middle part of the whole machine is a workbench 1. The turntable 11 of the workbench 1 is used for the keyboard circuit board material to run between the loading position 101, the test position 102, the welding position 103 and the unloading position 104. At the loading position 101, the three thin sheets of material are sucked and transported to the turntable 11 jig 12 by the loading device 2 to be aligned and stacked. At the testing position 102, the three thin sheets of material are tested for electrical functions by the test needle 35. At the welding position 103, the three thin sheets of material are fixed into a complete keyboard circuit board by ultrasonic welding. At the unloading position 104, the keyboard circuit board on the jig 12 is clamped and transported to the outer receiving trough 51 by the unloading robot 52. The whole process is completed automatically.

[0029] refer to Figures 1 to 6 A fully automatic welding and testing machine comprises a workbench 1 provided with a turntable 11, a jig 12 for placing a keyboard circuit board is provided on the turntable 11, the turntable 11 drives the jig 12 to circulate in a loading position 101, a test position 102, a welding position 103 and a unloading position 104 in sequence, the loading position 101, the test position 102, the welding position 103 and the unloading position 104 are respectively provided with a loading device 2, a testing device 3, a welding device 4 and an unloading device 5, the loading device 2 transports three sheets of thin materials constituting the keyboard circuit board and stacks them on the jig 12 of the loading position 101, the testing device 3 performs an electrical function test on the three sheets of thin materials at the test position 102, the welding device 4 performs welding operations on the three sheets of thin materials at the welding position 103, and the unloading device 5 moves the keyboard circuit board at the unloading position 104 away from the turntable 1 1; the feeding device 2 includes a feeding platform 21 and a feeding robot 24. The feeding platform 21 is provided with three material racks 26. The three material racks 26 are arranged side by side along the moving direction of the feeding robot 24. Three types of thin sheet materials constituting the keyboard circuit board are respectively placed in the three material racks 26. The feeding robot 24 reciprocates between the feeding platform 21 and the turntable 11 to transport the corresponding thin sheet materials in the three material racks 26 in turn and stack them on the fixture 12 of the feeding position 101. The feeding platform 21 is provided with a lifting component 25 at each material rack 26. The lifting component 25 lifts the thin sheet materials in the material rack 26 to the feeding height 205. At the feeding height 205, the feeding robot 24 absorbs the uppermost layer of thin sheet materials and cooperates with the dividing needles 266 on the material rack 26 to perform the dividing operation in the process of lifting the thin sheet materials.

[0030] The fully automatic welding and testing machine of the embodiment of the present application realizes the flow of materials between four workstations through the turntable 11. The loading robot 24 of the loading device 2 adopts vacuum to absorb the thin sheet materials, and cooperates with the dividing needle 266 to divide the thin sheet materials. The thin sheet materials are stacked on the fixture 12 in sequence through the loading device 2, and the electrical function test of the stacked thin sheet materials is performed through the testing device 3. Then, the stacked thin sheet materials are ultrasonically welded through the welding device 4. Finally, the good products and defective products are separated and stacked in the corresponding receiving trough 51 through the unloading device 5, thereby realizing fully automatic welding and testing of the keyboard circuit board, improving production efficiency, improving the production quality of the keyboard circuit board, and saving production costs.

[0031] It needs to be further explained that the three material racks 26 of the loading platform 21 are respectively placed with the upper thin sheet material 201, the middle thin sheet material 202 and the lower thin sheet material 203. The lower thin sheet material 203 is placed on the material rack 26 close to the workbench 1, and the upper thin sheet material 201 is placed on the material rack 26 farthest from the workbench 1. The loading robot 24 will simultaneously absorb the uppermost thin sheet materials on the three material racks 26. After the material division is completed, the loading robot 24 will first place the lower thin sheet material 203 closest to the workbench 1 on the fixture 12 of the loading position 101, and then place the middle thin sheet material 202 and the upper thin sheet material 201. When the upper, middle and lower three layers of thin sheet materials are stacked in sequence on the fixture 12 of the loading position 101, the loading operation of all materials of a single keyboard circuit board is completed, and the turntable 11 of the workbench 1 will transfer the fixture 12 loaded with materials to the test position 102 for electrical function testing.

[0032] In order to place the stockpile of thin sheet materials, in this embodiment, reference Figure 3 and Figure 4 The material rack 26 includes a bottom plate 261, a limit plate 262, a support plate 263, a positioning sleeve 264, and a lifting connector 265. The bottom plate 261 is composed of a plurality of vertically arranged limit plates 262 to form a silo for placing thin film materials. The support plate 263 is arranged in the silo, the positioning sleeve 264 is fixed on the bottom plate 261, the lifting connector 265 is connected to the support plate 263, the positioning sleeve 264 and the lifting connector 265 cooperate with each other, and when the support plate 263 is located at the lowest height of the silo, the lifting connector 265 is inserted in the positioning sleeve 264.

[0033] It needs to be further explained that a mounting groove is formed by a plurality of positioning plates 22 and limit blocks 23 on the loading platform 21, and the edge of the bottom plate 261 of the material rack 26 cooperates with the guide groove of the limit block 23. The material rack 26 is installed into the mounting groove by push-pull style along the guide groove from one side of the loading platform 21. During the quick replacement process of the material rack 26, the handle 268 on the bottom plate 261 can be used to conveniently push and pull the material rack 26, so that the material rack 26 can be quickly installed on the loading platform 21.

[0034] It can be understood that, with such a configuration, the six limit plates 262 vertically fixed on the base plate 261 can adjust the spacing according to the thin film materials of different sizes, so as to adapt to the thin film materials of different sizes and shapes and improve the versatility; the support plate 263 is used to cooperate with the lifting assembly 25 to realize the lifting and lowering of the thin film materials in the silo, and the detachable positioning sleeve 264 and the lifting connector 265 make the material rack 26 can be separated from the loading platform 21, and the thin film materials can be placed in the material rack 26 externally, and the material rack 26 and the thin film materials can be inserted into the installation groove of the loading platform 21 in a quick-change manner, which can save the loading time of the machine and improve production efficiency.

[0035] In order to divide the thin sheet material, in this embodiment, refer to Figure 4 The dividing needle 266 is vertically arranged on the bottom plate 261. The dividing needle 266 is inserted into the positioning hole 204 of the thin sheet material in the silo. The dividing needle 266 is provided with a bugle head 267 at the loading height 205. When the loading robot 24 lifts the top layer of thin sheet material 201, the bugle head 267 is interference fit with the positioning hole 204 of the thin sheet material through its own elastic force to separate the upper and lower layers of thin sheet material.

[0036] It can be understood that, in this arrangement, the horn head 267 can be replaced according to the size of the positioning hole 204 of different thin-sheet materials. The outer diameter of the selected horn head 267 is slightly larger than the inner diameter of the positioning hole 204, and the outer diameter of the main body of the dividing needle 266 is smaller than the inner diameter of the positioning hole 204. The main body of the dividing needle 266 is inserted into the positioning hole 204, which will not affect the lifting process of the thin-sheet material. When the thin-sheet material rises to the feeding height 205, the positioning hole 204 of the thin-sheet material contacts the outer wall of the horn head 267, and the feeding is completed. The robot 24 absorbs the top layer of thin film material, and the loading robot 24 lifts the top layer of thin film material. The pulling force provided by the loading robot 24 causes elastic deformation at the positioning hole 204 of the top layer of thin film material 201, thereby passing through the bugle head 267. The negative pressure and electrostatic force between the upper and lower layers of thin film material are not sufficient to drive the next layer of thin film material through the bugle head 267, so that the next layer of thin film material is blocked by the bugle head 267 and remains in the silo, completing the separation of the thin film material.

[0037] In order to lift the sheet material in the rack 26 to the loading height 205, in this embodiment, reference Figure 3The lifting assembly 25 includes a top plate 251, a top rod 252, a lifting motor 253, a screw pair 254 and a lifting guide rod 255. The top plate 251 is vertically provided with multiple top rods 252, and the top rods 252 are arranged toward the lifting connecting piece 265 of the material rack 26. The lifting motor 253 is transmission-connected to the top plate 251 through the screw pair 254, and the top plate 251 is slidingly connected to the lifting guide rod 255. The lifting motor 253 drives the top plate 251 and the top rod 252 to move up and down through the screw pair 254, and the top rod 252 drives the support plate 263 and the thin sheet material to move up and down through the lifting connecting piece 265.

[0038] It can be understood that, in such a configuration, three groups of jacking assemblies 25 are arranged under the loading platform 21, and the three groups of jacking assemblies 25 correspond to three material racks 26 respectively. Each group of jacking assemblies 25 is driven by a jacking motor 253, which is transmitted through the screw pair 254, driving the top plate 251 to move up and down along the jacking guide rod 255, and the top plate 251 simultaneously drives four push rods 252 to move up and down. When the push rod 252 is at the lowest height of the stroke, the upper end of the push rod 252 is separated from the jacking connection 265 to facilitate the replacement of the material rack 26. When it is necessary to lift the thin sheet material, the jacking motor 253 drives the top plate 251 and the push rod 252 to rise, and the upper end of the push rod 252 is connected to the jacking connection 265, thereby lifting the support plate 263 and the thin sheet material. During the lifting process, the push rod 252 passes through the positioning seat, and the positioning seat guides the push rod 252 to prevent the push rod 252 from shaking during the lifting process.

[0039] It should be further explained that the feeding manipulator 24 includes a feeding rail 241, a feeding motor 242, a moving beam 243, a mounting rod 244, a picking cylinder 245, a picking plate 246, and a vacuum nozzle 247. The feeding rail 241 is mounted above the feeding table 21 and extends toward the workbench 1. The feeding motor 242 is mounted on the feeding rail 241. The moving beam 243 is vertically arranged between the two feeding rails 241. The feeding motor 242 is a servo motor, which can accurately control the moving position of the moving beam 243 to achieve accurate stacking of thin sheet materials on the fixture 12. The moving beam 243 is driven to move along the feeding guide rail 241 by means of synchronous belt transmission. Two mounting rods 244 are vertically arranged on the moving beam 243 and extend toward the workbench 1. Three picking cylinders 245 are installed on each mounting rod 244. A picking plate 246 is installed at the driving end of each picking cylinder 245. At least two vacuum suction nozzles 247 are installed under each picking plate 246. Thus, three pairs of picking cylinders 245 are arranged on the two mounting rods 244. The three pairs of picking cylinders 245 correspond to three material racks 26. At least four vacuum suction nozzles 247 are distributed on each material rack 26.

[0040] When sucking the thin sheet material on the material rack 26, the material picking cylinder 245 drives the material picking plate 246 and the vacuum suction nozzle 247 to descend, so that the leather cup of the vacuum suction nozzle 247 contacts the thin sheet material on the uppermost layer of the material rack 26, and sucks the thin sheet material on the uppermost layer through vacuum. Then the material picking cylinder 245 drives the material picking plate 246 and the vacuum suction nozzle 247 to rise, thereby driving the thin sheet material on the uppermost layer to rise, and in the process of rising, cooperates with the horn head 267 of the material dividing needle 266 to divide the material; after the material dividing is completed, the feeding motor 242 drives the moving beam 243 and the mounting rod 244 to move toward the workbench 1, so that the first pair of material picking cylinders 245 The transported lower layer thin film material 203 is moved and placed in the jig 12 of the loading position 101, and the loading motor 242 continues to drive the moving beam 243 and the mounting rod 244 to move, so that the middle layer thin film material 202 transported by the second pair of picking cylinders 245 is moved and placed in the jig 12 of the loading position 101, and then, the upper layer thin film material 201 transported by the third pair of picking cylinders 245 is moved and placed in the jig 12 of the loading position 101, and finally, the loading motor 242 drives the three pairs of picking cylinders 245 to retreat to the loading platform 21, completing the loading and stacking of the upper, middle and lower layer thin film materials 203 of a single keyboard circuit board.

[0041] In order to accurately stack the thin sheet materials, in this embodiment, refer to Figure 5 and Figure 6 The fixture 12 is provided with a positioning pin 14, and the positioning pin 14 cooperates with the positioning hole 204 on the sheet material for positioning.

[0042] It can be understood that, with such an arrangement, the loading robot 24 transports the lower sheet material 203, the middle sheet material 202 and the upper sheet material 201 in sequence and stacks them in the jig 12 of the loading position 101. The positioning holes 204 of the lower sheet material 203, the middle sheet material 202 and the upper sheet material 201 are in the same position, so that the three layers of sheet material can be positioned by the positioning needle 14 and accurately stacked on the jig 12, thereby improving the quality of loading.

[0043] In order to perform electrical function test on the keyboard circuit board, in this embodiment, refer to Figure 5 and Figure 6 A support frame 17 for installing a test device 3 is provided above the turntable 11 of the workbench 1. The test device 3 includes a lifting cylinder 31, a lifting guide rod 32, a lifting plate 33 and a test needle disk 34. The lifting cylinder 31 is installed on the support frame 17. The lifting guide rod 32 is arranged between the support frame 17 and the workbench 1. The test needle disk 34 is installed below the lifting plate 33. A plurality of test needles 35 arranged in a matrix are provided on the test needle disk 34. The test needles 35 are arranged toward the fixture 12 of the test station. The lifting plate 33 is transmission-connected to the lifting cylinder 31. The lifting cylinder 31 drives the lifting plate 33 and the test needle disk 34 to move up and down along the lifting guide rod 32.

[0044] It should be further explained that the test needle disk 34 can be replaced according to keyboard circuit boards of different sizes and shapes. The test needle disk 34 is detachably clamped under the lifting plate 33 by a pair of clamps 36. The clamps 36 are provided with locking bolts that can be easily rotated, and the test needle disk 34 can be quickly disassembled and assembled through the locking bolts.

[0045] It can be understood that, in such an arrangement, a pair of lifting guide rods 32 are fixed between the support frame 17 and the workbench 1, and the other pair of lifting guide rods 32 are arranged between the lifting plate 33 and the support frame 17. By staggering the two pairs of lifting guide rods 32, a larger activity space can be provided for the turntable 11 and the test needle disk 34. At the same time, the two pairs of lifting guide rods 32 can also stably guide the lifting plate 33 and the test needle disk 34 to move up and down.

[0046] In order to solder the keyboard circuit board, in this embodiment, refer to Figure 5 The welding device 4 includes an ultrasonic generator 41 and a moving platform 42 . The ultrasonic generator is located above the turntable 11 and is arranged toward the welding position 103 .

[0047] It can be understood that, in such a configuration, a support base 43 is provided below the movable platform 42, the movable platform 42 fixes the ultrasonic generator 41 through the column 44, the ultrasonic generator 41 needs to cooperate with a welding head (not shown in the accompanying drawings) that matches the welding position 103 of the keyboard circuit board, and two sets of handwheel adjustment components 45 are provided on the support base 43. The positions of the movable platform 42 and the ultrasonic generator 41 are adjusted by the two sets of handwheel adjustment components 45, so as to adjust the position of the ultrasonic generator 41 according to keyboard circuit boards of different sizes and shapes.

[0048] In order to cut the keyboard circuit board, in this embodiment, refer to Figure 1 and Figure 6 The unloading device 5 includes a material receiving trough 51 and a unloading robot 52. The material receiving trough 51 is arranged on the outside of the workbench 1. The unloading robot 52 is set under the support frame 17. The unloading robot 52 moves back and forth between the material receiving trough 51 and the turntable 11. The unloading robot 52 includes a finger cylinder 56 for clamping the keyboard circuit board in the thickness direction.

[0049] It needs to be further explained that the unloading robot 52 includes a unloading motor 53, a unloading guide rail 54, a connecting frame 55 and a finger cylinder 56. The unloading motor 53 is installed on the support frame 17. The unloading guide rail 54 is slidably connected to the slide seat of the support frame 17. The unloading motor 53 drives the unloading guide rail 54 to reciprocate in the horizontal direction through a linear module. Two finger cylinders 56 are installed at the end of the unloading guide rail 54 through a T-shaped connecting frame 55. The two finger cylinders 56 are fixed on the connecting frame 55, and the finger cylinders 56 are set toward the turntable 11.

[0050] It can be understood that, with such a configuration, the two finger cylinders 56 clamp the two sides of the keyboard circuit board in the length direction, thereby stably clamping the keyboard circuit board on the unloading position 104 fixture 12. When the finger cylinder 56 clamps the keyboard circuit board, the clamping block on the lower side of the finger cylinder 56 will move upward, thereby lifting the keyboard circuit board to a certain height, so that the keyboard circuit board can be smoothly separated from the positioning pin 14, and then the keyboard circuit board is moved away from the turntable 11 by the unloading motor 53, and placed in the receiving trough 51. The two receiving troughs 51 respectively place good products and defective products. According to the electrical function test results of the test device 3, the unloading motor 53 will place the good keyboard circuit board into the good receiving trough 51, and the defective keyboard circuit board into the defective receiving trough 51.

[0051] In order to facilitate the finger cylinder 56 to clamp the keyboard circuit board, in this embodiment, refer to Figure 5 and Figure 6 The outer edge of the fixture 12 is provided with an avoidance groove 13 , and the finger cylinder 56 clamps the keyboard circuit board on the fixture 12 at the avoidance groove 13 .

[0052] It is understandable that, with such an arrangement, the clamping block on the lower side of the finger cylinder 56 can extend to the bottom of the keyboard circuit board through the avoidance groove 13, so that the two clamping blocks can clamp the keyboard circuit board at a deeper position to avoid empty clamping.

[0053] In order to ensure that the test needle 35 of the test device 3 can have sufficient pressure to contact the keyboard circuit board of the test position 102, in this embodiment, reference Figure 5 and Figure 6 A supporting roller 15 is provided under each fixture 12 of the turntable 11, and a supporting block 16 is provided at the unloading position 104 of the workbench 1. When the fixture 12 moves to the unloading position 104, the supporting roller 15 moves to the bottom of the supporting block 16 and abuts against the supporting block 16.

[0054] It can be understood that, with such a setting, the test position 102 and the material discharge position 104 are set fairly, and the support roller 15 is pressed by the support block 16. When the test needle 35 is pressed down to the keyboard circuit board of the test position 102, the material discharge position 104 will not be lifted up, so that there is enough pressure between the test needle 35 and the keyboard circuit board, and at the same time the turntable 11 will not be damaged.

[0055] The turntable 11 of the embodiment of the present application rotates intermittently, 90 degrees at a time. The four workstations of the turntable 11 are the loading position 101, the testing position 102, the welding position 103, and the unloading position 104, respectively. After each action is completed, the current material is rotated once to the next workstation for operation; the worker only needs to replace the material rack 26 loaded with thin sheet materials to the loading table 21, and transport the finished keyboard circuit board from the receiving trough 51 to the next process, which effectively avoids direct manual contact with the loading robot 24, the testing device 3, the welding device 4, and the unloading robot 52 of the welding and testing machine, thereby improving production safety, and automating the welding assembly process and the testing process of the keyboard circuit board, which greatly improves product quality and production efficiency and saves costs.

[0056] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fully automatic welding and measuring machine, characterized in that: It comprises a workbench provided with a turntable, on which a jig for placing a keyboard circuit board is provided, and the turntable drives the jig to circulate in a loading position, a testing position, a welding position and a unloading position in sequence, and the loading position, the testing position, the welding position and the unloading position are respectively provided with a loading device, a testing device, a welding device and an unloading device, the loading device transports a plurality of thin sheets of materials constituting the keyboard circuit board and stacks them on the jig at the loading position, the testing device performs an electrical function test on the plurality of thin sheets of materials at the testing position, the welding device performs welding operations on the plurality of thin sheets of materials at the welding position, and the unloading device moves the keyboard circuit board at the unloading position away from the turntable; The loading device includes a loading platform and a loading robot. The loading platform is provided with a plurality of material racks, and the plurality of material racks are arranged side by side along the moving direction of the loading robot. The plurality of material racks respectively place a plurality of thin sheet materials constituting a keyboard circuit board. The loading robot reciprocates between the loading platform and the turntable to transport the corresponding thin sheet materials in the plurality of material racks in turn and stack them on a jig at the loading position. The loading platform is provided with a lifting component at each material rack, and the lifting component lifts the thin sheet materials in the material rack to a loading height. At the loading height, the loading robot absorbs the topmost layer of thin sheet materials, and cooperates with the dividing needles on the material rack to perform dividing operations during the process of lifting the thin sheet materials.

2. The fully automatic welding and measuring machine according to claim 1, characterized in that: The material rack includes a bottom plate, a limit plate, a support plate, a positioning sleeve, and a lifting connection piece. The bottom plate is composed of a plurality of vertically arranged limit plates to form a silo for placing thin film materials. The support plate is arranged in the silo, the positioning sleeve is fixed on the bottom plate, the lifting connection piece is connected to the support plate, and the positioning sleeve and the lifting connection piece cooperate with each other. When the support plate is at the lowest height of the silo, the lifting connection piece is inserted in the positioning sleeve.

3. The fully automatic welding and measuring machine according to claim 2, characterized in that: The dividing needle is vertically arranged on the bottom plate, and the dividing needle is inserted into the positioning hole of the thin sheet material in the silo. The dividing needle is provided with a bugle head at the loading height. When the loading robot lifts the top layer of thin sheet material, the bugle head has an interference fit with the positioning hole of the thin sheet material through its own elastic force to separate the upper and lower layers of thin sheet material.

4. The fully automatic welding and measuring machine according to claim 2, characterized in that: The jacking assembly includes a top plate, a top rod, a jacking motor, a screw pair and a jacking guide rod. The top plate is vertically provided with a plurality of top rods, and the top rods are arranged toward the jacking connecting piece of the material rack. The jacking motor is transmission-connected to the top plate through the screw pair, and the top plate is slidably connected to the jacking guide rod. The jacking motor drives the top plate and the top rod to move up and down through the screw pair, and the top rod drives the support plate and the sheet material to move up and down through the jacking connecting piece.

5. The fully automatic welding and measuring machine according to claim 1, characterized in that: The jig is provided with a positioning pin, and the positioning pin cooperates with the positioning hole on the sheet material for positioning.

6. The fully automatic welding and measuring machine according to claim 1, characterized in that: The workbench is provided with a support frame for installing a test device above the turntable, and the test device includes a lifting cylinder, a lifting guide rod, a lifting plate and a test needle disk. The lifting cylinder is installed on the support frame, and the lifting guide rod is arranged between the support frame and the workbench. The test needle disk is installed below the lifting plate. A plurality of test needles arranged in a matrix are arranged on the test needle disk, and the test needles are arranged toward a fixture of the test station. The lifting plate is transmission-connected to the lifting cylinder, and the lifting cylinder drives the lifting plate and the test needle disk to move up and down along the lifting guide rod.

7. The fully automatic welding and measuring machine according to claim 6, characterized in that: The welding device comprises an ultrasonic generator and a moving platform. The ultrasonic generator is located above the rotating disk and is arranged toward the welding position.

8. The fully automatic welding and measuring machine according to claim 6, characterized in that: The unloading device includes a material receiving trough and a unloading robot. The material receiving trough is arranged outside the workbench. The unloading robot is arranged under the support frame. The unloading robot reciprocates between the material receiving trough and the turntable. The unloading robot includes a finger cylinder for clamping the keyboard circuit board in the thickness direction.

9. The fully automatic welding and measuring machine according to claim 8, characterized in that: The outer edge of the jig is provided with an avoidance groove, and the finger cylinder clamps the keyboard circuit board on the jig at the avoidance groove.

10. The fully automatic welding and measuring machine according to claim 6, characterized in that: A supporting roller is arranged under each jig of the turntable, and a supporting block is arranged at the unloading position of the workbench. When the jig moves to the unloading position, the supporting roller moves to the bottom of the supporting block and abuts against the supporting block.

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