A chip mounting device conveying mechanism

Abstract

This utility model discloses a placement device conveying mechanism, including a support plate. The support plate is slidably mounted on a frame on both its left and right sides. Screws are provided on both sides of the frame, with a slider passing through the middle of each screw. One end of the screw is connected to a motor that drives its rotation. A first groove is formed on the upper part of the support plate, and a positioning template is detachably connected within the first groove. A second groove is formed above the positioning template, and a positioning mechanism for positioning the PCB board is provided within the second groove. By configuring the placement device as a support plate, screws, a first groove, a second groove, and a positioning mechanism, the positioning mechanism matches the size of the PCB board during transport, enabling direct positioning and limiting of the PCB board. Then, the motor is turned on, driving the screws to rotate, and the slider moves on the frame, thereby moving the PCB board from the loading area to the placement area. This results in more precise positioning, preventing misalignment between the support plate and the PCB board during transport, and ensuring placement quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of patch assembly mechanisms, and in particular relates to a patch assembly device conveying mechanism. Background Technology

[0002] Surface mount technology (SMT) is currently one of the most popular technologies and processes in the electronics assembly industry. It is a circuit assembly technology that mounts leadless or short-lead surface mount components onto the surface of a printed circuit board or other substrate, and then assembles them by reflow soldering or dip soldering.

[0003] A pick-and-place machine is a device used to place surface mount components (SMT) at high speed and with high precision. It is installed after a dispensing machine or screen printer and uses a moving placement head to accurately place the SMT components onto the PCB pads. The pick-and-place machine is the most valuable, technologically advanced, and impactful piece of electronic manufacturing equipment in the entire SMT production process, significantly affecting the overall assembly capacity and efficiency.

[0004] For pick-and-place machines, the conveying mechanism is one of the main structural components, primarily responsible for transporting the PCB. Regarding the conveying mechanism, a search of existing technology reveals a utility model patent with Chinese patent authorization announcement number CN211019864U that discloses a PCB conveying mechanism for an LED pick-and-place machine. This mechanism mainly includes multiple rotating shafts mounted on a frame, with support plates on the shafts. During transport, the PCB is placed on the support plates, and the rotation of the shafts moves the support plates, thus conveying the PCB into position.

[0005] In the prior art, similar to the above-mentioned surface mount device conveying mechanism, there are areas for improvement in actual implementation: during the process of the rotating shaft conveying the support plate, the support plate is prone to a certain degree of skew, causing the PCB board to be mispositioned, which in turn leads to the surface mount device not being placed in place. Utility Model Content

[0006] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a surface mount device conveying mechanism, which solves the problem that in the existing surface mount device conveying mechanism, the support plate is prone to a certain degree of skew during the process of the rotating shaft conveying the support plate, causing the PCB board to be mispositioned, which in turn leads to the surface mount device not being placed in place.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a chip mounting device conveying mechanism, which is set on the frame of the chip mounting device for conveying PCB boards, includes a support plate. The support plate is slidably mounted on the frame on both the left and right sides via sliders. A screw is set on both the left and right sides of the frame, with the middle of the screw passing through the slider. One end of the screw is connected to a motor that drives its rotation. A first groove is formed on the upper part of the support plate, and a positioning template is detachably connected in the first groove. A second groove is formed above the positioning template, and a positioning mechanism that can be adjusted in size to position the PCB board is provided in the second groove. The support plate and the positioning template are respectively provided with clearance holes in the middle. A lifting mechanism that can lift the PCB board is provided at the bottom of the support plate.

[0008] As a further improvement of this utility model, the positioning mechanism includes two first positioning plates that can slide left and right and two second positioning plates that can slide back and forth. The two first positioning plates and the two second positioning plates form a rectangle. Each first positioning plate and each second positioning plate are connected and set on the positioning template by a locking structure.

[0009] As a further improvement of this utility model, the locking mechanism includes a threaded shaft. The positioning template is provided with a locking groove at the position where the first positioning plate and the second positioning plate are set. Each locking groove is provided with a threaded shaft. The first positioning plate and the second positioning plate are slidably connected in the locking groove via a sliding plate. The sliding plate is provided with a through hole at the position where the threaded shaft passes through. A locking nut is threadedly connected to both sides of the sliding plate on the threaded shaft.

[0010] As a further improvement of this utility model, the lifting mechanism includes a cylinder, and a U-shaped fixing plate is provided below the center of the support plate. The cylinder is mounted on the fixing plate, and the piston of the cylinder passes through the clearance hole upward.

[0011] As a further improvement of this utility model, the support plate is slidably connected to the frame on both the left and right sides by two sliders, and the left and right sides of the frame are provided with sliding grooves that are slidably connected to the sliders.

[0012] As a further improvement of this utility model, the positioning template is set on the support plate by bolt connection.

[0013] Compared with the prior art, this utility model has the following advantages: 1. By setting the placement device as a support plate structure, the support plate is slidably connected to the frame via a slider and driven to move by the rotation of a screw. A first groove is provided on the support plate, in which a positioning template is detachably connected. A second groove is provided on the positioning template, in which a positioning mechanism is set. Therefore, when conveying PCB boards, the size of the positioning mechanism is adjusted according to the size of the PCB boards to be processed in this batch, so that the positioning mechanism matches the size of the PCB board, enabling direct positioning and limiting of the PCB board. In the loading area, the PCB board is placed in the positioning mechanism, and then the motor is turned on. The motor drives the screw to rotate. After the screw rotates, the slider moves on the frame, thereby moving the PCB board from the loading area to the placement area. The positioning is more accurate, avoiding the offset of the support plate and the PCB board during the conveying process, and ensuring the placement quality.

[0014] Furthermore, the positioning template is detachably connected to the support plate, allowing it to be removed and replaced directly. An adjustable positioning mechanism is also incorporated into the positioning template, facilitating its adjustment to accommodate PCBs of varying sizes and providing broad applicability.

[0015] A lifting mechanism is installed at the bottom of the support plate, which makes it easy to lift the PCB board after it is moved into place, making it easy to remove the PCB board.

[0016] 2. By setting the positioning mechanism as a first positioning plate and a second positioning plate, the first positioning plate can slide left and right and the second positioning plate can slide forward and backward, and be locked by the locking mechanism. This makes it easy to adjust the size of the positioning area of ​​the first positioning plate and the second positioning plate. The locking mechanism is set as a structure of threaded shaft, locking groove and locking nut. After the first positioning plate and the second positioning plate are adjusted, the nut can be turned to lock the first positioning plate and the second positioning plate in position, which is simple and convenient. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 for Figure 1 Enlarged view at point A; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; In the diagram: 1. Frame; 2. Support plate; 3. Slider; 4. Screw; 5. Motor; 6. First groove; 7. Positioning template; 8. Second groove; 9. Clearance hole; 10. Cylinder; 11. First positioning plate; 12. Second positioning plate; 13. Threaded shaft; 14. Locking groove; 15. Slide plate; 16. Locking nut; 17. Slide groove; 18. Bolt; 19. Fixing plate. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0019] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0020] This utility model discloses a patch delivery mechanism. (Refer to...) Figure 1 , Figure 2 and Figure 3 A chip mounter conveying mechanism is mounted on the frame 1 of the chip mounter for conveying PCB boards. It includes a support plate 2. The support plate 2 is mounted on the frame 1 on both the left and right sides by sliding blocks 3. Specifically, the support plate 2 is slidably connected to the frame 1 on both the left and right sides by two sliding blocks 3. The left and right sides of the frame 1 are provided with sliding grooves 17 that are slidably connected to the sliding blocks 3. A screw 4 is fixedly connected to both the left and right sides of the frame 1. The middle of the screw 4 passes through a slider 3, and the slider 3 is slidably connected to the screw 4. One end of the screw 4 is connected to a motor 5 that drives its rotation. A first groove 6 is provided on the upper part of the support plate 2. A positioning template 7 is detachably connected to the first groove 6. Specifically, the positioning template 7 is connected to the first groove 6 of the support plate 2 by bolts 18. A second groove 8 is provided above the positioning template. The second groove 8 is provided with a positioning mechanism that can adjust its size to position the PCB board. The support plate 2 and the positioning template 7 are respectively provided with clearance holes 9 in the middle. A lifting mechanism is provided at the bottom of the support plate 2 to lift the PCB board. Specifically, the lifting mechanism includes a cylinder 10. A U-shaped fixing plate 19 is fixedly connected to the lower center of the support plate 2. The body of the cylinder 10 is fixedly mounted on the fixing plate 19, and the piston of the cylinder 10 extends upward through the clearance hole 9. The lifting mechanism at the bottom of the support plate 2 facilitates the lifting of the PCB board after it is moved into place, making it easy to remove the PCB board.

[0021] like Figure 1As shown, the positioning mechanism includes two first positioning plates 11 that can slide left and right and two second positioning plates 12 that can slide back and forth. The two first positioning plates 11 and the two second positioning plates 12 form a rectangle. Each first positioning plate 11 and each second positioning plate 12 are connected and set on the positioning template 7 by a locking structure.

[0022] like Figure 2 As shown, each locking mechanism includes a threaded shaft 13. A locking groove 14 is provided on the positioning template 7 at the positions where the first positioning plate 11 and the second positioning plate 12 are set. A threaded shaft 13 is fixedly connected in each locking groove 14. The first positioning plate 11 and the second positioning plate 12 are slidably connected within the locking groove 14 via a sliding plate 15. A through hole is provided on the sliding plate 15 at the position where the threaded shaft 13 passes through. A locking nut 16 is threadedly connected to both sides of the threaded shaft 13 on the sliding plate 15. By setting the positioning mechanism to the first positioning plate 11 and the second positioning plate 12, the first positioning plate 11 can be slid left and right, and the second positioning plate 12 can be slid forward and backward, and locked by the locking mechanism. This facilitates adjustment of the size of the positioning areas of the first positioning plate 11 and the second positioning plate 12. Furthermore, by setting the locking mechanism to the structure of the threaded shaft 13, the locking groove 14, and the locking nut 16, after the first positioning plate 11 and the second positioning plate 12 are adjusted, the nut can be screwed in to lock the first positioning plate 11 and the second positioning plate 12, which is simple and convenient.

[0023] This invention sets the placement device as a support plate 2. The support plate 2 is slidably connected to the frame 1 via a slider 3 and is driven to move by the rotation of a screw 4. A first groove 6 is provided on the support plate 2, and a positioning template 7 is detachably connected to the first groove 6. A second groove 8 is provided on the positioning template 7, and a positioning mechanism is set in the second groove 8. Therefore, when conveying PCB boards, the size of the positioning mechanism is adjusted according to the size of the PCB boards to be processed in this batch, so that the positioning mechanism matches the size of the PCB board, enabling direct positioning and limiting of the PCB board. In the loading area, the PCB board is placed in the positioning mechanism, and then the motor 5 is turned on. The motor 5 drives the screw 4 to rotate. After the screw 4 rotates, the slider 3 moves on the frame 1, thereby moving the PCB board from the loading area to the placement area. The positioning is more accurate, avoiding the offset between the support plate 2 and the PCB board during the conveying process, and ensuring the placement quality.

[0024] Furthermore, the positioning template 7 is detachably connected to the support plate 2, allowing it to be removed and replaced directly. An adjustable positioning mechanism is also provided on the positioning template 7, facilitating size adjustment to accommodate PCBs of different sizes and providing broad applicability.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A placement assembly conveying mechanism, mounted on the frame of a placement assembly, for conveying PCB boards, including a support plate, characterized in that: The support plate is mounted on the frame on both the left and right sides via sliders. A screw is mounted on each side of the frame, with the middle of the screw passing through the slider and one end of the screw connected to a motor that drives its rotation. A first groove is provided on the upper part of the support plate, and a positioning template is detachably connected to the first groove. A second groove is provided above the positioning template, and a positioning mechanism that can be adjusted in size to position the PCB board is provided in the second groove. Both the support plate and the positioning template have corresponding clearance holes in their middle parts. A lifting mechanism that can lift the PCB board is provided at the bottom of the support plate.

2. The patch assembly conveying mechanism according to claim 1, characterized in that: The positioning mechanism includes two first positioning plates that can slide left and right and two second positioning plates that can slide back and forth. The two first positioning plates and the two second positioning plates form a rectangle. Each first positioning plate and each second positioning plate are connected and set on the positioning template by a locking structure.

3. The patch assembly conveying mechanism according to claim 2, characterized in that: The locking structure includes a threaded shaft. The positioning template has a locking groove at the position where the first positioning plate and the second positioning plate are set. Each locking groove has a threaded shaft. The first positioning plate and the second positioning plate are slidably connected in the locking groove via a sliding plate. The sliding plate has a through hole at the position where the threaded shaft passes through. A locking nut is threadedly connected to both sides of the sliding plate on the threaded shaft.

4. The patch assembly conveying mechanism according to claim 1, characterized in that: The lifting mechanism includes a cylinder, and a U-shaped fixing plate is provided below the center of the support plate. The cylinder is mounted on the fixing plate, and the piston of the cylinder passes through an avoidance hole upward.

5. The patch assembly conveying mechanism according to claim 1, characterized in that: The support plate is slidably connected to the frame on both the left and right sides by two sliders, and the left and right sides of the frame are provided with sliding grooves that are slidably connected to the sliders.

6. The patch assembly conveying mechanism according to claim 1, characterized in that: The positioning template is mounted on the support plate by bolts.

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