Chip mounting device of chip mounter
By introducing a positioning plate and a hydraulic rod suction cup pressing mechanism into the pick-and-place machine, the displacement problem of the circuit board during the placement process is solved, and accurate positioning and efficient placement of the circuit board are achieved.
Patent Information
- Application Number
- CN202422464726.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In existing pick-and-place machines, the circuit board is prone to displacement during the placement process due to the softness of the conveyor belt, resulting in inaccurate positioning.
The pressing mechanism uses a positioning plate, hydraulic rod, and suction cup. The positioning plate is used to position and calibrate the circuit board, and the hydraulic rod is used to drive the suction cup to perform the placement operation. The pressure plates on both sides of the suction cup contact and fix the circuit board first.
This effectively prevents the circuit board from shifting during the placement process, ensuring accurate positioning and placement quality.
Smart Images
Figure CN223515114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chip mounting equipment technology, and in particular to a chip mounting device for a chip mounter. Background Technology
[0002] The placement unit of a pick-and-place machine is a crucial component in modern electronics manufacturing. Its main function is to automatically and precisely place surface mount components (SMTs) onto printed circuit boards (PCBs). With the continuous development of electronic technology, especially in the fields of consumer electronics and communication equipment, the demand for high efficiency and high precision is increasing, making the role of pick-and-place machines increasingly prominent. A pick-and-place unit typically consists of several key components, including a drive system, a conveyor belt, a pick-and-place mechanism, and a vision inspection system. The drive system provides power, enabling the pick-and-place machine to move and position quickly; the conveyor belt ensures smooth movement of the PCB during production; the pick-and-place mechanism precisely picks up components from the tape or cassette and places them in designated positions using methods such as vacuum suction; and the vision inspection system ensures component accuracy and placement quality, avoiding potential production defects.
[0003] In some existing pick-and-place machines, the circuit board is usually placed on a conveyor belt during use. During the placement process, the pick-and-place machine applies downward pressure. Because the conveyor belt is relatively soft, the circuit board is prone to displacement during the pressing process. Therefore, this problem needs to be solved. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a chip mounting device for a chip mounter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A placement device for a pick-and-place machine includes an operating table. A conveyor belt is rotatably connected to the top of the operating table. A rotating mechanism for rotating the conveyor belt is provided on one side of the conveyor belt. Two reciprocating screws are symmetrically slidably connected to the top of the operating table. A positioning plate is fixedly connected to the end of each of the two reciprocating screws near the conveyor belt. A moving mechanism for moving the reciprocating screws is provided on the surface of each of the two reciprocating screws away from the positioning plate. A gantry is fixedly connected to the top of the operating table. Two hydraulic rods are fixedly connected to the top of the gantry. The bottom of the two hydraulic rods is fixedly connected to the same connecting plate. A pressing mechanism for pressing the circuit board is provided on the bottom side of the connecting plate near the two positioning plates. The positioning plate can prevent the circuit board from being misaligned.
[0007] As a further embodiment of this utility model, the rotating mechanism has two rollers, both of which are rotatably connected to one side of the operating table. The conveyor belt is fitted onto the surface of the two rollers. A first rotating shaft is rotatably connected to one side of the operating table. Both ends of the first rotating shaft are fitted with missing gears. A motor is fixedly connected to one end of the first rotating shaft, and the motor is fixedly connected to one side of the operating table. A second rotating shaft is rotatably connected to the surface of the operating table near the two missing gears. A first gear is fitted onto the surface of the two second rotating shafts near the missing gears. Both first gears cooperate with the missing gears. A first synchronous pulley is fitted onto the surface of the two second rotating shafts. A second synchronous pulley is fitted onto the end of one of the rollers near the two first synchronous pulleys. The same synchronous belt is fitted onto the surface of the first and second synchronous pulleys. The first gears enable the conveyor belt to rotate.
[0008] As a further embodiment of this utility model, the moving mechanism includes a second gear, which is rotatably connected to one side of the operating table, and a reciprocating screw is sleeved on one side of the second gear. The second gear and the reciprocating screw are configured to cooperate with each other. Two limiting rods are fixedly connected to the surface of the positioning plate near the second gear, and both limiting rods are slidably connected to one side of the operating table. The second gear cooperates with the missing gear. A support plate is fixedly connected inside the operating table near the conveyor belt. The positioning plate can be moved by the setting of the second gear.
[0009] As a further embodiment of this utility model, the pressing mechanism includes a slide rod, which is slidably connected to the top of the connecting plate. A pressure plate is fixedly connected to the bottom of the slide rod. A spring is sleeved on the surface of the slide rod. The top end of the spring is fixedly connected to the bottom of the connecting plate, and the bottom end of the spring is fixedly connected to the top of the pressure plate. A suction cup is fixedly connected to the bottom of the connecting plate. By setting the pressure plate, the circuit board can be pressed.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. This utility model employs a technical solution of fixing the circuit board with pressure plates, thus preventing displacement of the circuit board during the mounting process. This effectively solves the problem that the circuit board is prone to displacement during pressing due to the softness of the conveyor belt. A suction cup is installed at the bottom of the hydraulic rod, allowing the mounting operation to be performed when the hydraulic rod moves the suction cup downwards. Pressure plates are also installed on both sides of the suction cup, with the pressure plates being the bottom of the suction cup. When the suction cup moves downwards, the pressure plates will contact the circuit board first, thereby fixing the circuit board and preventing displacement during the mounting process. Attached Figure Description
[0012] Figure 1This is a schematic diagram of the overall structure of the placement device of a chip mounter proposed in this utility model;
[0013] Figure 2 This is a schematic diagram of the pressing mechanism of the placement device of a chip mounter according to the present invention;
[0014] Figure 3 for Figure 2 Enlarged structural diagram at point A in the diagram;
[0015] Figure 4 This is a schematic diagram of the rotating mechanism of the placement device of a chip mounter proposed in this utility model.
[0016] In the diagram: 1. Operating platform; 2. Conveyor belt; 3. Gantry frame; 4. Motor; 201. Roller; 202. Support plate; 301. Hydraulic rod; 302. Suction cup; 303. Connecting plate; 304. Slide rod; 305. Pressure plate; 306. Spring; 401. First rotating shaft; 402. Gear missing; 403. Second rotating shaft; 404. First gear; 405. First synchronous pulley; 406. Second synchronous pulley; 407. Synchronous belt; 408. Reciprocating screw; 409. Positioning plate; 410. Second gear; 411. Limiting rod. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Reference Figure 1 - Figure 4 A placement device for a chip mounter includes an operating table 1. A conveyor belt 2 is rotatably connected to the top of the operating table 1. A rotating mechanism for rotating the conveyor belt 2 is provided on one side of the conveyor belt 2. Two reciprocating screws 408 are symmetrically slidably connected to the top of the operating table 1. Positioning plates 409 are fixedly connected to the ends of the two reciprocating screws 408 near the conveyor belt 2. Moving mechanisms for moving the reciprocating screws 408 are provided on the surfaces of the two reciprocating screws 408 away from the positioning plates 409. A gantry frame 3 is fixedly connected to the top of the operating table 1. Two hydraulic rods 301 are fixedly connected to the top of the gantry frame 3. The same connecting plate 303 is fixedly connected to the bottom of the two hydraulic rods 301. Pressing mechanisms for pressing the circuit board are provided on the bottom of the connecting plate 303 near the two positioning plates 409. The positioning plates 409 are provided to prevent the circuit board from being misaligned.
[0019] Reference Figure 2 and Figure 4In a preferred embodiment, the rotating mechanism has two rollers 201, both of which are rotatably connected to one side of the operating table 1. A conveyor belt 2 is fitted over the surfaces of the two rollers 201. A first rotating shaft 401 is rotatably connected to one side of the operating table 1. Both ends of the first rotating shaft 401 are fitted with missing gears 402. A motor 4 is fixedly connected to one end of the first rotating shaft 401. The motor 4 is fixedly connected to one side of the operating table 1. A second rotating shaft 403 is rotatably connected to the surface of the operating table 1 near the two missing gears 402. A first gear 404 is fitted on the surface of the two second rotating shafts 403 near the missing gears 402. Both first gears 404 cooperate with the missing gears 402. A first synchronous pulley 405 is fitted on the surface of the two second rotating shafts 403. A second synchronous pulley 406 is fitted on the end of one of the rollers 201 near the two first synchronous pulleys 405. The same synchronous belt 407 is fitted on the surfaces of the first synchronous pulleys 405 and the second synchronous pulleys 406. The first gears 404 enable the conveyor belt 2 to rotate.
[0020] Reference Figure 1 and Figure 4 In a preferred embodiment, the moving mechanism includes a second gear 410, which is rotatably connected to one side of the operating table 1. A reciprocating screw 408 is sleeved on one side of the second gear 410. The second gear 410 and the reciprocating screw 408 are configured to cooperate with each other. Two limiting rods 411 are fixedly connected to the surface of the positioning plate 409 near the second gear 410. Both limiting rods 411 are slidably connected to one side of the operating table 1. The second gear 410 and the missing gear 402 cooperate with each other. A support plate 202 is fixedly connected inside the operating table 1 near the conveyor belt 2. The positioning plate 409 can be moved by the setting of the second gear 410.
[0021] Reference Figure 2 and Figure 3 In a preferred embodiment, the pressing mechanism includes a slide rod 304, which is slidably connected to the top of the connecting plate 303. A pressure plate 305 is fixedly connected to the bottom of the slide rod 304. A spring 306 is sleeved on the surface of the slide rod 304. The top end of the spring 306 is fixedly connected to the bottom of the connecting plate 303, and the bottom end of the spring 306 is fixedly connected to the top of the pressure plate 305. A suction cup 302 is fixedly connected to the bottom of the connecting plate 303. The circuit board can be pressed by the setting of the pressure plate 305.
[0022] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: During use, the motor 4 will start accordingly. A missing gear 402 is installed on the output shaft of the motor 4, so that when the motor 4 starts, the missing gear 402 will rotate synchronously. A first gear 404 and a second gear 410 are respectively fitted on the surface of the missing gear 402. Because the missing gear 402 is set with missing teeth, the missing gear 402 will only cooperate with one of them. A timing belt 407 is installed on one side of the first gear 404, and the other end of the timing belt 407 is installed on one side of the roller 201. So when the missing gear 402 drives the first gear 404 to rotate, the roller 201 will also rotate synchronously. The conveyor belt 2 is sleeved on the surface of the two rollers 201. So when one of the rollers 201 rotates, the conveyor belt 2 will also rotate accordingly, thereby achieving the purpose of transporting the circuit board. After the circuit board moves a certain distance, the missing gear 402 will cooperate with the second gear 410. One side of the conveyor belt 408 is fitted with a reciprocating lead screw 408. Since the reciprocating lead screw 408 is fixed and does not rotate, when the second gear 410 rotates, it can move the reciprocating lead screw 408 forward. A positioning plate 409 is installed at one end of the reciprocating lead screw 408. When the reciprocating lead screw 408 drives the positioning plate 409 to move, the positioning plate 409 can be used to position and calibrate the circuit board to avoid deviations. Since multiple circuit boards are placed at the top of the conveyor belt 2, the positioning plate 409 can then calibrate the circuit boards. While the positioning and calibration are being performed, the hydraulic rod 301 is also activated simultaneously. A suction cup 302 is installed at the bottom of the hydraulic rod 301. When the hydraulic rod 301 moves the suction cup 302 downward, the chip placement operation can be performed. Pressure plates 305 are also installed on both sides of the suction cup 302, and the pressure plates 305 are attached to the bottom of the suction cup 302. When the suction cup 302 moves downward, the pressure plates 305 will contact the circuit board first, thereby fixing the circuit board and preventing the circuit board from shifting during the chip placement process.
[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A placement device for a pick-and-place machine, comprising an operating table (1), characterized in that, The top of the operating table (1) is rotatably connected to a conveyor belt (2). A rotating mechanism for rotating the conveyor belt (2) is provided on one side of the conveyor belt (2). Two reciprocating screws (408) are symmetrically slidably connected to the top of the operating table (1). A positioning plate (409) is fixedly connected to the end of the two reciprocating screws (408) near the conveyor belt (2). A moving mechanism for moving the reciprocating screws (408) is provided on the surface of the two reciprocating screws (408) away from the positioning plate (409). A gantry frame (3) is fixedly connected to the top of the operating table (1). Two hydraulic rods (301) are fixedly connected to the top of the gantry frame (3). The same connecting plate (303) is fixedly connected to the bottom of the two hydraulic rods (301). A pressing mechanism for pressing the circuit board is provided on the bottom of the connecting plate (303) near the two positioning plates (409).
2. The placement apparatus of the placement machine according to claim 1, characterized in that, The rotating mechanism has two rollers (201), both of which are rotatably connected to one side of the operating table (1). The conveyor belt (2) is sleeved on the surface of the two rollers (201). A first rotating shaft (401) is rotatably connected to one side of the operating table (1). Gears (402) are sleeved at both ends of the first rotating shaft (401). A motor (4) is fixedly connected to one end of the first rotating shaft (401).
3. The placement apparatus of the placement machine according to claim 2, characterized in that, The motor (4) is fixedly connected to one side of the operating table (1). The operating table (1) is rotatably connected to the surface of the two missing gears (402). The surface of the two second rotating shafts (403) near the missing gears (402) is fitted with a first gear (404). The two first gears (404) cooperate with the missing gears (402). The surface of the two second rotating shafts (403) is fitted with a first synchronous pulley (405).
4. The placement apparatus of the placement machine according to claim 3, characterized in that, One of the rollers (201) is fitted with a second synchronous pulley (406) at the end near the two first synchronous pulleys (405), and the same synchronous belt (407) is fitted on the surface of the first synchronous pulley (405) and the second synchronous pulley (406).
5. The placement apparatus of the placement machine according to claim 4, characterized in that, The moving mechanism includes a second gear (410), which is rotatably connected to one side of the operating table (1), and a reciprocating screw (408) is sleeved on one side of the second gear (410). The second gear (410) and the reciprocating screw (408) are configured to cooperate with each other. Two limiting rods (411) are fixedly connected to the surface of the positioning plate (409) near the second gear (410). Both limiting rods (411) are slidably connected to one side of the operating table (1). The second gear (410) and the missing gear (402) cooperate with each other. A support plate (202) is fixedly connected inside the operating table (1) near the conveyor belt (2).
6. The placement apparatus of the placement machine according to claim 5, characterized in that, The pressing mechanism includes a slide rod (304), which is slidably connected to the top of the connecting plate (303). A pressure plate (305) is fixedly connected to the bottom of the slide rod (304). A spring (306) is sleeved on the surface of the slide rod (304). The top end of the spring (306) is fixedly connected to the bottom of the connecting plate (303), and the bottom end of the spring (306) is fixedly connected to the top of the pressure plate (305). A suction cup (302) is fixedly connected to the bottom of the connecting plate (303).