Feeding mechanism of chip mounter

Abstract

The utility model relates to the technical field of electronic mounting, in particular to a feeding mechanism of a chip mounter. Comprising a conveying assembly, and the conveying assembly is used for conveying PCBs; the clamping assembly is fixedly connected to the middle of the top end of the feeding assembly and used for clamping the PCB; the limiting assembly is fixedly connected to the two ends of the feeding assembly and used for limiting the feeding assembly, the limiting assembly comprises an equipment box and a limiting plate, a driving motor is fixedly installed in an inner cavity of the equipment box, the two output ends of the driving motor are each sleeved with a fixing sleeve, and a rotating rod is fixedly connected to one side of each fixing sleeve; according to the feeding mechanism of the chip mounter, the driving motor rotates to drive the limiting plate to rotate by 90 degrees, the limiting teeth on the side of the limiting plate abut against the bottom of the inner cavity of the lower groove, and therefore the clamping assembly is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic mounting, in particular to a feeding mechanism of a mounting machine. Background Art

[0002] The placement machine is also called a placement machine or surface mount system. It is configured after the dispensing machine or screen printer in the production line. It is a device that accurately places surface mount components on the PCB pads by moving the placement head. It is a device used to achieve high-speed and high-precision placement of components. The placement machine mainly includes a visual system, a feeding platform, an axis structure, a transport track component, a suction nozzle, an air source component, and input and operating components. The feeding platform has a turret-type loading method.

[0003] A Chinese utility model is disclosed, and the publication number is CN220383476U, which includes a frame body, a limit bar, a synchronous belt, two synchronous rollers, and a servo motor. A loading assembly is placed between the synchronous belt and the limit bar. By setting the loading assembly, the PCB can be placed through the loading tray, the PCB board can be horizontally limited by the first limit block and the second limit block, the movement of the pressing plate can be realized by the cooperation of the extrusion block, the extrusion column, and the extrusion groove, the vertical direction can be limited by the pressing plate, and the first limit block and the second limit block can be adjusted by the cross rail groove. The loading and limiting operations of PCBs of different sizes can be realized by the cooperation of the above multiple parts, but the following problems still exist:

[0004] The above-mentioned loading mechanism mainly drives the rotation of the synchronous belt through the servo motor, and the rotation of the synchronous belt drives the movement of the loading tray with the PCB board for loading. There will be a certain inertia when the synchronous belt stops suddenly during the rotation process, which makes the loading tray have a certain mechanical deviation after moving to the appropriate position, thereby affecting the precise placement of the placement machine.

[0005] To this end, we designed a loading mechanism for a placement machine to provide another technical solution to the above technical problems. Utility Model Content

[0006] Based on this, it is necessary to provide a loading mechanism for a placement machine in response to the above technical problems, so as to solve the problem proposed in the above background technology that the above loading mechanism mainly drives the rotation of the synchronous belt by a servo motor, and the rotation of the synchronous belt drives the movement of the loading tray with the PCB board placed thereon for loading. When the synchronous belt suddenly stops during the rotation process, there will be a certain inertia, which makes the loading tray move to a suitable position. There is a certain mechanical deviation, thereby affecting the precise placement of the placement machine.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a feeding mechanism of a placement machine, comprising

[0008] A conveying assembly, wherein the conveying assembly is used to convey the PCB board;

[0009] A loading assembly, which is disposed on the top of the conveying assembly and is used to connect with the conveying assembly;

[0010] A clamping assembly, which is fixedly connected to the middle part of the top of the feeding assembly and is used to clamp the PCB board;

[0011] A limit assembly, which is fixedly connected to the two ends of the feeding assembly and is used to limit the feeding assembly. The limit assembly includes a device box and a limit plate. A driving motor is fixedly installed in the inner cavity of the device box. Both output ends of the driving motor are sleeved with fixed sleeves. Both ends of the driving motor away from the clamping assembly are provided with L-shaped grooves. One side of the fixed sleeve is fixedly connected with a rotating rod. The two rotating rods are respectively fixedly connected to the two ends of the limit plate. One side of the limit plate is provided with a plurality of limit teeth at equal distances.

[0012] Preferably, the conveying assembly includes a conveying frame, a lower groove is formed on the top of the conveying frame, side grooves are formed on both sides of the lower groove, both ends of the inner cavity of the lower groove are rotatably connected with a rotating shaft, and the lower groove is used for installing the rotating shaft.

[0013] Preferably, both ends of the rotating shaft are sleeved with synchronous wheels, and the synchronous wheels are connected through a synchronous belt transmission. A servo motor is fixedly installed on one side of the conveying frame, and the output end of the servo motor is fixedly connected to one end of one of the rotating shafts, and the rotating shaft and the synchronous belt are driven to rotate by the servo motor.

[0014] Preferably, the feeding assembly includes a feeding plate, both sides of which are fixedly connected to mounting plates, a convex groove is provided at the bottom of the mounting plate, the convex groove is sleeved on the surface of the synchronous belt, and the bottom of the convex groove is connected to a convex pressure plate via a locking bolt, and a plurality of anti-slip grooves are provided on the top of the convex pressure plate, and the synchronous belt is connected to the mounting plate by inserting the synchronous belt into the convex groove and then pressing the synchronous belt with the convex pressure plate.

[0015] Preferably, the clamping assembly includes a clamping plate, four sliding grooves are equidistantly formed on the top of the clamping plate, a sliding block is slidably connected to the inner cavity of the sliding groove, a spring column is fixedly connected to one side of the sliding block, a triangular clamping block is fixedly connected to the top of the spring column, the PCB board is clamped by the triangular clamping block, and the spring column has a certain elastic potential energy so that the triangular clamping block is pressed tightly against the side of the PCB board.

[0016] Preferably, guide blocks are fixedly connected to both sides of the sliding block, guide grooves are provided on both sides of the inner cavity of the spring column, and the guide blocks are slidably connected to the guide grooves to limit and guide the movement of the sliding block.

[0017] Preferably, a controller is fixedly installed on one side of the top of the conveying component, an infrared sensing sensor is fixedly installed on the bottom of the front of the controller, and the output end of the infrared sensing sensor is electrically connected to the input end of the controller, and the conveying component and the clamping component are both electrically connected to an external power supply through the controller to control the electrical equipment.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. By placing the PCB board between the four triangular clamping blocks, the spring column drives the triangular clamping blocks to press against the sides of the PCB board, so that the PCB board can be positioned, and it can be adapted to the clamping of PCB boards of different sizes;

[0020] 2. The fixed sleeve is driven to rotate by the rotation of the driving motor, and the rotation of the fixed sleeve drives the rotation of the rotating rod and the limit plate, so that the limit plate rotates ninety degrees, and the limit teeth on the side of the limit plate are tightly pressed against the bottom of the inner cavity of the lower groove, thereby limiting the clamping assembly to prevent the position of the clamping assembly from being offset due to the inertia of the rotation of the synchronous belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the feeding assembly of the utility model;

[0023] Figure 3 It is a cross-sectional view of the clamping assembly of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the limit assembly of the utility model;

[0025] Figure 5 It is a side sectional view of the limiting component of the utility model.

[0026] In the figure: 1. conveying assembly; 101. conveying frame; 102. lower groove; 103. side groove; 104. rotating shaft; 105. synchronous wheel; 106. synchronous belt; 107. servo motor; 2. feeding assembly; 201. feeding plate; 202. mounting plate; 203. convex groove; 204. convex pressure plate; 205. anti-skid groove; 206. locking bolt; 3. clamping assembly; 301. clamping plate; 302. slide groove; 303. sliding block; 304. spring column; 305. triangular clamping block; 306. guide block; 307. guide groove; 4. limiting assembly; 401. equipment box; 402. driving motor; 403. fixing sleeve; 404. L-shaped groove; 405. rotating rod; 406. limiting plate; 407. limiting tooth; 5. controller; 6. infrared induction sensor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] See also Figure 1-5 The utility model provides a feeding mechanism of a chip mounter, comprising

[0030] Conveying component 1, conveying component 1 is used to convey PCB boards;

[0031] A loading assembly 2, which is disposed on the top of the conveying assembly 1 and is used to be connected with the conveying assembly 1;

[0032] The clamping assembly 3 is fixedly connected to the middle part of the top of the feeding assembly 2 and is used to clamp the PCB board;

[0033] The limiting component 4 is fixedly connected to the two ends of the loading component 2 and is used to limit the loading component 2. The limiting component 4 includes a device box 401 and a limiting plate 406. The inner cavity of the device box 401 is fixedly installed with a driving motor 402. Both output ends of the driving motor 402 are sleeved with a fixing sleeve 403. Both ends of the driving motor 402 away from the clamping component 3 are provided with L-shaped grooves 404. One side of the fixing sleeve 403 is fixedly connected with a rotating rod 405. The two rotating rods 405 are respectively fixedly connected to the two ends of the limiting plate 406. One side of the limiting plate 406 is equidistantly provided with a plurality of limiting teeth 407.

[0034] More specifically, the PCB board is clamped on the clamping component 3, and then the feeding component 2 is driven to move through the conveying component 1, and the PCB board on the clamping component 3 is driven to move through the feeding component 2. When it moves to a suitable position, the fixed sleeve 403 is driven to rotate through the rotation of the driving motor 402, and the rotation of the fixed sleeve 403 drives the rotation of the rotating rod 405 and the limit plate 406, so that the limit plate 406 rotates ninety degrees, and the limit teeth 407 on the side of the limit plate 406 are tightly pressed against the bottom of the inner cavity of the lower groove 102, thereby limiting the clamping component 3 to prevent the position of the clamping component 3 from shifting due to the inertia of the rotation of the synchronous belt 106.

[0035] See also Figure 1-5 Furthermore, the conveying assembly 1 includes a conveying frame 101, a lower groove 102 is opened on the top of the conveying frame 101, side grooves 103 are opened on both sides of the lower groove 102, both ends of the inner cavity of the lower groove 102 are rotatably connected with a rotating shaft 104, both ends of the rotating shaft 104 are sleeved with synchronous wheels 105, and the synchronous wheels 105 are connected through a synchronous belt 106. A servo motor 107 is fixedly installed on one side of the conveying frame 101, and the output end of the servo motor 107 is fixedly connected to one end of one of the rotating shafts 104.

[0036] In the embodiment of the utility model, the rotation of the servo motor 107 drives the rotation of one of the rotating shafts 104, the rotation of the rotating shaft 104 drives the rotation of the synchronous wheel 105 and the synchronous belt 106, and the rotation of the synchronous belt 106 drives the movement of the feeding component 2.

[0037] See also Figure 1-5 Furthermore, the loading assembly 2 includes a loading plate 201, and mounting plates 202 are fixedly connected on both sides of the loading plate 201. A convex groove 203 is provided at the bottom of the mounting plate 202. The convex groove 203 is sleeved on the surface of the synchronous belt 106, and the bottom of the convex groove 203 is connected to a convex pressure plate 204 through a locking bolt 206. The top of the convex pressure plate 204 is provided with a plurality of anti-slip grooves 205.

[0038] In the embodiment of the utility model, the two mounting plates 202 are respectively put on the top of the two synchronous belts 106, and then the synchronous belts 106 are pressed into the inner cavity of the convex groove 203 through the cooperation of the convex pressure plate 204 and the locking bolt 206, and are prevented from slipping by the anti-slip groove 205.

[0039] See also Figure 1-5Furthermore, the clamping assembly 3 includes a clamping plate 301, four sliding grooves 302 are equidistantly opened on the top of the clamping plate 301, a sliding block 303 is slidably connected to the inner cavity of the sliding groove 302, a spring column 304 is fixedly connected to one side of the sliding block 303, a triangular clamping block 305 is fixedly connected to the top of the spring column 304, guide blocks 306 are fixedly connected to both sides of the sliding block 303, guide grooves 307 are opened on both sides of the inner cavity of the spring column 304, and the guide blocks 306 are slidably connected to the guide grooves 307.

[0040] In the embodiment of the utility model, the PCB board is clamped by the clamping assembly 3. The specific operation is to pull the triangular clamping block 305 outward, and the sliding block 303 is driven by the sliding of the triangular clamping block 305 to slide along the guide groove 307 under the guidance of the guide block 306, so that the four triangular clamping blocks 305 are separated from each other, and the spring column 304 is compressed. Then the PCB board is placed between the four triangular clamping blocks 305. Under the action of the spring column 304, the triangular clamping blocks 305 are driven to press against the sides of the PCB board, so that the PCB board can be positioned, and it can adapt to the clamping of PCB boards of different sizes.

[0041] See also Figure 1-5 Furthermore, a controller 5 is fixedly installed on one side of the top of the conveying component 1, an infrared sensing sensor 6 is fixedly installed on the bottom of the front side of the controller 5, and the output end of the infrared sensing sensor 6 is electrically connected to the input end of the controller 5, and the conveying component 1 and the clamping component 3 are both electrically connected to the external power supply through the controller 5.

[0042] In the embodiment of the utility model, when the clamping assembly 3 moves to the vicinity of the infrared sensing sensor 6, the infrared sensing sensor 6 detects the presence of the object and transmits the detection signal to the controller 5. The controller 5 controls the conveying assembly 1 to stop working on the one hand, and controls the clamping assembly 3 to work on the other hand.

[0043] When in use, firstly, the two mounting plates 202 are respectively placed on the top of the two synchronous belts 106, and then the synchronous belts 106 are pressed against the inner cavity of the convex groove 203 by the cooperation of the convex pressing plate 204 and the locking bolt 206, and the anti-slip groove 205 is used to prevent slipping;

[0044] Then, the PCB board is clamped by the clamping assembly 3. Specifically, the triangular clamping block 305 is pulled outward, and the sliding block 303 is driven to slide along the guide groove 307 under the guidance of the guide block 306 by the sliding of the triangular clamping block 305, so that the four triangular clamping blocks 305 are away from each other, and the spring column 304 is compressed. Then, the PCB board is placed between the four triangular clamping blocks 305. Under the action of the spring column 304, the triangular clamping blocks 305 are driven to press against the sides of the PCB board, so that the PCB board can be positioned, and it can be adapted to the clamping of PCB boards of different sizes;

[0045] Next, the PCB board on the clamping assembly 3 is conveyed by the conveying assembly 1. Specifically, the rotation of the servo motor 107 drives the rotation of one of the rotating shafts 104, and the rotation of the rotating shaft 104 drives the rotation of the synchronous wheel 105 and the synchronous belt 106, and the rotation of the synchronous belt 106 drives the movement of the feeding assembly 2, and the movement of the feeding assembly 2 drives the movement of the clamping assembly 3 and the PCB board on the clamping assembly 3;

[0046] Finally, when the clamping assembly 3 moves to the vicinity of the infrared sensing sensor 6, the infrared sensing sensor 6 detects the presence of the object and transmits the detection signal to the controller 5. The controller 5 controls the servo motor 107 to stop working on the one hand, and controls the rotation of the driving motor 402 on the other hand. The rotation of the driving motor 402 drives the rotation of the fixing sleeve 403, and the rotation of the fixing sleeve 403 drives the rotation of the rotating rod 405 and the limiting plate 406, so that the limiting plate 406 rotates ninety degrees, and the limiting teeth 407 on the side of the limiting plate 406 are tightly pressed against the bottom of the inner cavity of the lower groove 102, thereby limiting the clamping assembly 3 to prevent the position of the clamping assembly 3 from being offset due to the inertia of the rotation of the synchronous belt 106.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding mechanism of a chip mounter, characterized in that: include A conveying assembly (1), wherein the conveying assembly (1) is used to convey a PCB board; A loading component (2), the loading component (2) being arranged on the top of the conveying component (1) and being used for connecting with the conveying component (1); A clamping assembly (3), the clamping assembly (3) is fixedly connected to the middle part of the top end of the loading assembly (2) and is used to clamp the PCB board; A limiting component (4), the limiting component (4) is fixedly connected to the two ends of the loading component (2) and is used to limit the loading component (2), the limiting component (4) comprises a device box (401) and a limiting plate (406), a driving motor (402) is fixedly installed in the inner cavity of the device box (401), the two output ends of the driving motor (402) are both sleeved with a fixing sleeve (403), both ends of the driving motor (402) away from the clamping component (3) are provided with L-shaped grooves (404), one side of the fixing sleeve (403) is fixedly connected with a rotating rod (405), the two rotating rods (405) are respectively fixedly connected to the two ends of the limiting plate (406), and one side of the limiting plate (406) is provided with a plurality of limiting teeth (407) at equal distances.

2. The feeding mechanism of a chip mounter according to claim 1, characterized in that: The conveying assembly (1) comprises a conveying frame (101), a lower groove (102) is provided on the top of the conveying frame (101), side grooves (103) are provided on both sides of the lower groove (102), and rotating shafts (104) are rotatably connected at both ends of the inner cavity of the lower groove (102).

3. The feeding mechanism of a chip mounter according to claim 2, characterized in that: Both ends of the rotating shaft (104) are sleeved with synchronous wheels (105), and the synchronous wheels (105) are connected in transmission via a synchronous belt (106). A servo motor (107) is fixedly mounted on one side of the conveying frame (101), and the output end of the servo motor (107) is fixedly connected to one end of one of the rotating shafts (104).

4. The feeding mechanism of a chip mounter according to claim 3, characterized in that: The loading assembly (2) comprises a loading plate (201), both sides of which are fixedly connected to mounting plates (202), a convex groove (203) is provided at the bottom of the mounting plate (202), the convex groove (203) is sleeved on the surface of the synchronous belt (106), and the bottom of the convex groove (203) is connected to a convex pressure plate (204) via a locking bolt (206), and a plurality of anti-slip grooves (205) are provided at the top of the convex pressure plate (204).

5. The feeding mechanism of a chip mounter according to claim 1, characterized in that: The clamping assembly (3) comprises a clamping plate (301), the top of the clamping plate (301) is provided with four sliding grooves (302) at equal intervals, the inner cavity of the sliding groove (302) is slidably connected to a sliding block (303), one side of the sliding block (303) is fixedly connected to a spring column (304), and the top of the spring column (304) is fixedly connected to a triangular clamping block (305).

6. The feeding mechanism of a chip mounter according to claim 5, characterized in that: Guide blocks (306) are fixedly connected to both sides of the sliding block (303), guide grooves (307) are provided on both sides of the inner cavity of the spring column (304), and the guide blocks (306) are slidably connected to the guide grooves (307).

7. The feeding mechanism of a chip mounter according to claim 1, characterized in that: A controller (5) is fixedly mounted on one side of the top of the conveying component (1), an infrared sensing sensor (6) is fixedly mounted on the bottom of the front of the controller (5), and an output end of the infrared sensing sensor (6) is electrically connected to an input end of the controller (5), and the conveying component (1) and the clamping component (3) are both electrically connected to an external power supply through the controller (5).

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