A high-precision patching apparatus for processing circuit boards

Abstract

This utility model discloses a high-precision chip mounting device for processing circuit boards, belonging to the field of circuit board processing technology. It includes a substrate and is characterized by: symmetrically fixed first upright plates on the upper part of the substrate; a main rotating shaft rotatably mounted between the first upright plates on the same side; a conveyor belt sleeved between the main rotating shafts; a fourth motor fixedly mounted at the rear of the first upright plate on the right side; the output shaft end of the fourth motor fixedly connected to the main rotating shaft; a chip conveying assembly fixedly mounted on the upper part of the substrate and in front of the conveyor belt; symmetrically fixed third upright plates on the upper part of the substrate and between the first upright plates; a slide rail fixedly mounted on the upper part of the third upright plate; a slider slidably mounted on the upper part of the slide rail; a crossbeam mounted between the sliders; a groove vertically penetrating inside the crossbeam; a sliding block slidably mounted inside the groove; a cylinder fixedly mounted below the sliding block; and a suction tube fixedly mounted at the output end of the cylinder. This utility model effectively reduces the error when the suction tube and the conveyor belt are in contact, effectively ensuring the stability and mounting accuracy of the circuit board during the chip mounting process.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically a high-precision chip mounting device for processing circuit boards. Background Technology

[0002] Surface mount technology (SMT) is a crucial step in circuit board manufacturing, primarily aimed at attaching chips onto the circuit board. Traditional SMT equipment stacks chips together and uses a pick-and-place nozzle to extract, release, and move in a single direction (back and forth) to complete the placement. Meanwhile, the circuit board remains on a conveyor belt. While this design allows for simple nozzle movement and continuous circuit board transport, it also presents several challenges. First, the nozzle's unidirectional movement limits the placement range. To achieve placement in more locations, the conveyor belt's movement must coordinate with the nozzle's, and vice versa. Since both are dynamic, errors are easily introduced. Second, the conveyor belt is not rigid, thus failing to consistently ensure the stability of the circuit board during placement, affecting placement accuracy. Therefore, minimizing errors in the nozzle-conveyor belt coordination while maintaining circuit board stability and placement accuracy has become a pressing issue for engineers. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a high-precision chip mounting device for processing circuit boards.

[0004] A high-precision chip mounting device for processing circuit boards includes a substrate, characterized in that: first upright plates are symmetrically fixedly arranged on the upper part of the substrate; a main rotating shaft is rotatably arranged between the first upright plates on the same side; a conveyor belt is sleeved between the main rotating shafts; a fourth motor is fixedly arranged at the rear of the first upright plate on the right side; the output shaft end of the fourth motor is fixedly connected to the main rotating shaft; a chip conveying assembly is fixedly arranged on the upper part of the substrate and in front of the conveyor belt; a third upright plate is symmetrically fixedly arranged on the upper part of the substrate and between the first upright plates; a slide rail is fixedly arranged on the upper part of the third upright plate; a slider is slidably arranged on the upper part of the slide rail; a crossbeam is arranged between the sliders; a groove is vertically penetrating inside the crossbeam; a moving block is slidably arranged inside the groove; a cylinder is fixedly arranged at the lower part of the moving block; and a suction tube is fixedly arranged at the output end of the cylinder.

[0005] Furthermore, a second motor is fixedly installed on the upper part of the third upright plate on the left side and behind the slide rail, and a second screw is fixedly installed at the end of the output shaft of the second motor. A second balance plate is fixedly installed on the upper part of the third upright plate on the left side and in front of the slide rail. The front end of the second screw is rotatably connected to the second balance plate, and the crossbeam is threadedly connected to the second screw.

[0006] Furthermore, a first motor is fixedly installed at the upper right end of the crossbeam, a first screw is fixedly installed at the output shaft end of the first motor, a first balance plate is fixedly installed at the upper left end of the crossbeam, the left end of the first screw is rotatably connected to the first balance plate, and the moving block is threadedly connected to the first screw.

[0007] Furthermore, the chip conveying assembly includes a second upright plate, a driven shaft rotatably disposed at the front of the second upright plate, a driving shaft rotatably disposed at the rear of the second upright plate, a front rotating shaft rotatably disposed above and behind the driven shaft, and a rear rotating shaft rotatably disposed above and in front of the driving shaft. The front rotating shaft and the rear rotating shaft are at the same height and parallel. A rolled material strip is disposed on the surface of the driven shaft, and a chip is disposed on the surface of the material strip. The free end of the material strip passes over the front rotating shaft and the rear rotating shaft from the top and is fixedly connected to the driving shaft. A third motor is fixedly disposed on the right side of the second upright plate on the right side, and the output shaft of the third motor is fixedly connected to the driving shaft.

[0008] Furthermore, the driven shaft surface is provided with partitions at equal intervals and parallel to each other, and the raw material belt is located between the partitions.

[0009] Furthermore, a first support rod is symmetrically fixed between the upper part of the substrate and the first upright plate, and a limiting plate is fixedly fixed on the upper part of the first support rod. The limiting plate includes an upper limiting part and a lower supporting part. The upper limiting part is located above the conveyor belt, and the lower supporting part is located below the conveyor belt.

[0010] Furthermore, a third support rod is fixedly installed on the upper part of the substrate and behind the conveyor belt, and a raw material tray is fixedly installed on the upper part of the third support rod, with a grid on the surface of the raw material tray.

[0011] Furthermore, a second support rod is fixedly installed on the upper part of the substrate and behind the conveyor belt, and a waste tray is fixedly installed on the upper part of the second support rod.

[0012] The advantages of this high-precision chip mounting equipment for processing circuit boards are as follows:

[0013] 1. The staff only needs to start the first motor and the second motor to realize the movement of the straw in the left and right and forward and backward directions, which effectively expands the patching range. On this basis, the conveyor belt only needs to complete the transmission of the circuit board without having to take into account the dynamic coordination with the straw. This effectively reduces the error when the straw and the conveyor belt are coordinated, and effectively ensures the patching accuracy.

[0014] 2. The threaded connection between the moving block and the first screw, the sliding connection with the slide groove, the threaded connection between the crossbeam and the second screw, and the sliding connection between the slider and the slide rail effectively ensure the stability and accuracy of the straw's movement in the left-right and front-back directions.

[0015] 3. The lower support section effectively ensures the support of the conveyor belt, and the upper limit plate effectively ensures the limit of the circuit board, thereby effectively ensuring the stability of the circuit board during the placement process and further ensuring the placement accuracy.

[0016] 4. The chip conveying assembly effectively ensures the stable conveying of the raw material strip. The front and rear rotating shafts keep the raw material strip horizontal between them, effectively ensuring the convenience of the pipette in picking up the chip. The raw material tray and its surface grid provide another option for chip placement, effectively improving the applicability of this equipment to chips of different specifications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a right-view magnified structural diagram of the chip transmission component of this utility model;

[0020] Figure 3 This is a magnified left-side view of the limiting plate of this utility model.

[0021] Figure 4 This is a top view of the present invention (only the straw delivery structure is shown).

[0022] Figure 5 This is a top view of the present invention (only the circuit board and chip transmission related structures are shown).

[0023] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0024] Among them, 1-second screw, 2-slide rail, 3-limiting plate, 4-conveyor belt, 5-main rotating shaft, 6-first upright plate, 7-first support rod, 8-second support rod, 9-waste tray, 10-second upright plate, 11-chip conveying assembly, 12-third support rod, 13-raw material tray, 14-third upright plate, 15-straw pipe, 16-slider, 17-crossbeam, 18-first motor, 19-first screw, 20-cylinder, 21-moving block, 22-slide groove, 23-first balance plate, 24-driven shaft, 25-raw material belt, 26-drive shaft, 27-rear rotating shaft, 28-front rotating shaft, 29-upper limit part, 30-lower support part, 31-second motor, 32-second balance plate, 33-base plate, 34-third motor, 35-fourth motor, 36-partition. Detailed Implementation

[0025] To make the description clearer, the high-precision chip mounting equipment for processing circuit boards according to this utility model will be further described in conjunction with the accompanying drawings.

[0026] A high-precision chip mounting device for processing circuit boards includes a substrate 33, characterized in that: first upright plates 6 are symmetrically fixed on the upper part of the substrate 33, main rotating shafts 5 are rotatably arranged between the first upright plates 6 on the same side, a conveyor belt 4 is sleeved between the main rotating shafts 5, a fourth motor 35 is fixedly fixed at the rear of the first upright plate 6 on the right side, the output shaft end of the fourth motor 35 is fixedly connected to the main rotating shaft 5, a chip conveying assembly 11 is fixedly fixed on the upper part of the substrate 33 and in front of the conveyor belt 4, a third upright plate 14 is symmetrically fixed on the upper part of the substrate 33 and between the first upright plates 6, a slide rail 2 is fixedly fixed on the upper part of the third upright plate 14, a slider 16 is slidably arranged on the upper part of the slide rail 2, a crossbeam 17 is arranged between the sliders 16, a groove 22 is vertically penetrating inside the crossbeam 17, a moving block 21 is slidably arranged inside the groove 22, a cylinder 20 is fixedly fixed at the lower part of the moving block 21, and a suction tube 15 is fixedly arranged at the output end of the cylinder 20.

[0027] Furthermore, a second motor 31 is fixedly installed on the upper part of the third upright plate 14 on the left and behind the slide rail 2. A second screw 1 is fixedly installed at the end of the output shaft of the second motor 31. A second balance plate 32 is fixedly installed on the upper part of the third upright plate 14 on the left and in front of the slide rail 2. The front end of the second screw 1 is rotatably connected to the second balance plate 32. The crossbeam 17 is threadedly connected to the second screw 1.

[0028] Furthermore, a first motor 18 is fixedly installed at the upper right end of the crossbeam 17, a first screw 19 is fixedly installed at the output shaft end of the first motor 18, a first balance plate 23 is fixedly installed at the upper left end of the crossbeam 17, the left end of the first screw 19 is rotatably connected to the first balance plate 23, and the moving block 21 is threadedly connected to the first screw 19.

[0029] Furthermore, the chip transfer assembly 11 includes a second upright plate 10. A driven shaft 24 is rotatably arranged at the front of the second upright plate 10, and a drive shaft 26 is rotatably arranged at the rear of the second upright plate 10. A front rotating shaft 28 is rotatably arranged above and behind the driven shaft 24, and a rear rotating shaft 27 is rotatably arranged above and in front of the drive shaft 26. The front rotating shaft 28 and the rear rotating shaft 27 are at the same height and parallel. A rolled material strip 25 is arranged on the surface of the driven shaft 24, and a chip is arranged on the surface of the material strip 25. The free end of the material strip 25 passes over the front rotating shaft 28 and the rear rotating shaft 27 from the top and is fixedly connected to the drive shaft 26. A third motor 34 is fixedly arranged on the right side of the second upright plate 10. The output shaft of the third motor 34 is fixedly connected to the drive shaft 26.

[0030] Furthermore, the driven shaft 24 is provided with partitions 36 at equal intervals and parallel to each other on its surface, and the raw material belt 25 is located between the partitions 36.

[0031] Furthermore, a first support rod 7 is symmetrically fixed between the upper part of the substrate 33 and the first upright plate 6. A limiting plate 3 is fixedly fixed on the upper part of the first support rod 7. The limiting plate 3 includes an upper limit part 29 and a lower support part 30. The upper limit part 29 is located above the conveyor belt 4, and the lower support part 30 is located below the conveyor belt 4.

[0032] Furthermore, a third support rod 12 is fixedly installed on the upper part of the substrate 33 and behind the conveyor belt 4, and a raw material tray 13 is fixedly installed on the upper part of the third support rod 12. The surface of the raw material tray 13 is provided with a grid.

[0033] Furthermore, a second support rod 8 is fixedly installed on the upper part of the substrate 33 and behind the conveyor belt 4, and a waste tray 9 is fixedly installed on the upper part of the second support rod 8.

[0034] The working principle of this high-precision chip mounting equipment for processing circuit boards is as follows: In the initial state, cylinder 20 is positioned directly above the raw material tray 13, and the chip to be mounted is located at the chip conveyor assembly 11. The fourth motor 35, third motor 34, second motor 31, and first motor 18 are activated. The fourth motor 35 drives the main shaft 5 to rotate, which in turn drives the conveyor belt 4 to rotate until the circuit board to be mounted is transported to the rear of the chip conveyor assembly 11. The third motor 34 then drives the drive shaft 26 to rotate. Shaft 26 pulls the raw material belt 25 backward until the chip closest to the free end of the raw material belt 25 is moved to a position between the front rotating shaft 28 and the rear rotating shaft 27, close to the rear rotating shaft 27. At this time, the chip is in a horizontal state. The second motor 31 drives the second screw 1 to rotate. Under the sliding limit of the slide rail 2 on the slider 16, the second screw 1 drives the crossbeam 17 to move forward until the crossbeam 17 moves above the chip to be attached. The first motor 18 drives the first screw 19 to rotate. Under the sliding limit of the slide groove 22 on the moving block 21, the first screw 19 drives the moving block 21 to rotate. 21. Move left until cylinder 20 is above the chip to be mounted. Activate cylinder 20. The output of cylinder 20 pushes the suction tube 15 downwards until it contacts the chip. The suction tube 15 then picks up the chip. The output of cylinder 20 moves upwards a certain distance. The second motor 31 drives the second screw 1 to reverse until the crossbeam 17 is above the circuit board to be mounted. The output of cylinder 20 pushes the suction tube 15 downwards again until the chip picked up by the suction tube 15 contacts the circuit board. Then, the suction tube 15 releases its force on the chip. Cylinder 20... The output end moves up a certain distance again, and the chip to be placed is then placed stably and accurately on the surface of the circuit board. The single placement is completed. If it is necessary to place the chip in other positions on the circuit board, the second motor 31, the first motor 18, and the cylinder 20 are used to move the suction tube 15 in the horizontal and vertical directions. Combined with the operation of the suction tube 15, the next placement can be performed. After a circuit board is placed, the conveyor belt 4 conveys it to the subsequent process and conveys the next circuit board to be placed to the back of the chip conveying assembly 11 for placement again.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A high-precision surface mount device for processing circuit boards, comprising a substrate, characterized in that: A first upright plate is symmetrically fixed on the upper part of the substrate. A main rotating shaft is rotatably arranged between the first upright plates on the same side. A conveyor belt is sleeved between the main rotating shafts. A fourth motor is fixedly arranged at the rear of the first upright plate on the right side. The output shaft end of the fourth motor is fixedly connected to the main rotating shaft. A chip conveying assembly is fixedly arranged on the upper part of the substrate and in front of the conveyor belt. A third upright plate is symmetrically fixed between the upper part of the substrate and the first upright plate. A slide rail is fixedly arranged on the upper part of the third upright plate. A slider is slidably arranged on the upper part of the slide rail. A crossbeam is arranged between the sliders. A groove is vertically inserted through the crossbeam. A moving block is slidably arranged inside the groove. A cylinder is fixedly arranged at the lower part of the moving block. A suction tube is fixedly arranged at the output end of the cylinder.

2. The high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, A second motor is fixedly installed on the upper part of the third upright plate on the left and behind the slide rail. A second screw is fixedly installed at the end of the output shaft of the second motor. A second balance plate is fixedly installed on the upper part of the third upright plate on the left and in front of the slide rail. The front end of the second screw is rotatably connected to the second balance plate. The crossbeam is threadedly connected to the second screw.

3. The high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, A first motor is fixedly installed at the upper right end of the crossbeam, and a first screw is fixedly installed at the output shaft end of the first motor. A first balance plate is fixedly installed at the upper left end of the crossbeam, and the left end of the first screw is rotatably connected to the first balance plate. The moving block is threadedly connected to the first screw.

4. A high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, The chip transfer assembly includes a second upright plate. A driven shaft is rotatably disposed at the front of the second upright plate, and a drive shaft is rotatably disposed at the rear of the second upright plate. A front rotating shaft is rotatably disposed above and behind the driven shaft, and a rear rotating shaft is rotatably disposed above and in front of the drive shaft. The front rotating shaft and the rear rotating shaft are at the same height and parallel. A rolled material strip is disposed on the surface of the driven shaft, and a chip is disposed on the surface of the material strip. The free end of the material strip passes over the front rotating shaft and the rear rotating shaft from the top and is fixedly connected to the drive shaft. A third motor is fixedly disposed on the right side of the second upright plate, and the output shaft of the third motor is fixedly connected to the drive shaft.

5. A high-precision surface mount equipment for processing circuit boards according to claim 4, characterized in that, The driven shaft surface is provided with partitions at equal intervals and parallel to each other, and the raw material belt is located between the partitions.

6. A high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, A first support rod is symmetrically fixed between the upper part of the substrate and the first upright plate. A limiting plate is fixedly fixed on the upper part of the first support rod. The limiting plate includes an upper limiting part and a lower supporting part. The upper limiting part is located above the conveyor belt, and the lower supporting part is located below the conveyor belt.

7. A high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, A third support rod is fixedly installed on the upper part of the substrate and behind the conveyor belt. A raw material tray is fixedly installed on the upper part of the third support rod, and a grid is provided on the surface of the raw material tray.

8. A high-precision surface mount equipment for processing circuit boards according to claim 1, characterized in that, A second support rod is fixedly installed on the upper part of the substrate and behind the conveyor belt, and a waste tray is fixedly installed on the upper part of the second support rod.

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