A circuit board chip mounter with automatic calibration function

Abstract

The utility model relates to circuit board chip mounter technical field, the utility model provides a kind of circuit board chip mounter with automatic calibration function, including positioning rail, put plate box, calibration component, linkage component and prevent lifting component, positioning rail is provided with two, two positioning rails are fixedly installed on the upper surface of chip mounter body, put plate box is slidably installed between two positioning rails, calibration component is set on the upper surface of chip mounter body, linkage component is set in the inside of chip mounter body, for driving calibration component synchronous to the two sides of put plate box and carrying out clamping calibration, prevent lifting component is set at the top of put plate box.The utility model provides a kind of circuit board chip mounter with automatic calibration function, by the aid of positioning rail, put plate box, calibration component, linkage component and prevent lifting component, solve the technical problem that some deviation appears when placing circuit board on chip mounter in prior art, to make subsequent chip mounting occur misregistration.

Description

Technical Field

[0001] This utility model relates to the field of circuit board placement machine technology, specifically to a circuit board placement machine with automatic calibration function. Background Technology

[0002] PCB placement machines are the core equipment in the surface mount technology process of electronic manufacturing. Their main function is to accurately pick up miniaturized surface mount components and place them on designated positions on PCBs with printed solder paste, preparing them for subsequent soldering. They are key equipment for realizing the miniaturization, high density, and automated production of electronic products and are widely used in consumer electronics, automotive electronics, aerospace, medical equipment and other fields.

[0003] There are various styles of circuit board placement machines. Among them, small desktop placement machines are suitable for small-batch production and are relatively easy to transport. When placing circuit boards, it is usually necessary to manually hold the circuit board and place it in the designated placement area of ​​the placement machine. Then, the placement nozzle is controlled by CNC. The placement nozzle picks up the component and moves to the designated position to place the component on the surface of the placement machine. Due to the control of the CNC system, the placement nozzle can be precisely controlled to move to the predetermined placement position of the circuit board to perform the placement process.

[0004] When placing circuit boards, it is done manually. Although small circuit board placement machines have designated placement areas, it is difficult to "surround" and fix the circuit boards. When placing circuit boards, manual placement may have some deviations, or the circuit board may be displaced due to accidental touch after accurate placement, which will affect subsequent placement. Therefore, a circuit board placement machine with automatic calibration function is proposed. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a circuit board placement machine with automatic calibration function, which solves the technical problem in the prior art that when placing the circuit board on the placement machine, slight deviations are easy to occur, resulting in misalignment during subsequent placement.

[0006] According to one aspect, at least one embodiment of the present invention provides a circuit board placement machine with automatic calibration function, comprising a placement machine body, a positioning rail, a board placement box, a calibration component, a linkage component, and an anti-tilting component. Two positioning rails are provided, both fixedly mounted on the upper surface of the placement machine body. The board placement box is slidably mounted between the two positioning rails. The calibration component is disposed on the upper surface of the placement machine body and is used to push the board placement box to a designated placement area. The linkage component is disposed inside the placement machine body and is used to drive the calibration component to synchronously clamp and calibrate the board placement box to both sides. The anti-tilting component is disposed at the top of the board placement box.

[0007] Furthermore, the calibration assembly includes a push block, a calibration plate, and an electric push rod. Two push blocks are provided, and both push blocks are slidably mounted on the upper surface of the pick-and-place machine body via sliding rods. Two calibration plates are provided, and the two calibration plates are respectively fixedly mounted on the sides of the two push blocks. The electric push rod is mounted on the side of the pick-and-place machine body, and the output end of the electric push rod is fixedly connected to the side of one of the push blocks.

[0008] Furthermore, the linkage assembly includes a connecting rod, a rack, a rotating shaft, a rotating gear, and a transmission assembly. The connecting rod is fixedly installed at the bottom end of both push blocks, and the connecting rod is slidably installed through the upper surface of the placement machine body. The rack is fixedly installed at the bottom end of both connecting rods. There are two rotating shafts, and both rotating shafts are rotatably installed inside the placement machine body via a support frame. The rotating gear is fixedly installed on the side of the rotating shaft, and the rotating gear meshes with the rack. The transmission assembly is located inside the placement machine body.

[0009] Furthermore, the transmission assembly includes a transmission shaft, a transmission gear ring, and transmission gears. The transmission shaft is rotatably mounted inside the body of the pick-and-place machine via a mounting bracket. The transmission gear rings are fixedly mounted on both of the two rotating shafts. The transmission gears are fixedly mounted on both ends of the transmission shaft, and the two transmission gears mesh with the two transmission gear rings respectively.

[0010] Furthermore, the anti-tilting assembly includes support rods and detection rods. Four support rods are fixedly installed on the top of the plate box, and the detection rods are rotatably installed on each of the four support rods via a rotating shaft.

[0011] Furthermore, the inside of the board placement box is provided with a board placement slot, and the board placement slot is adapted to the circuit board.

[0012] Furthermore, the length of the plate-laying box is consistent with the length of the positioning rail.

[0013] Furthermore, the length of the calibration plate is longer than the distance between the two positioning rails.

[0014] The beneficial effects of this utility model are as follows: In this invention, when placing the circuit board, the operator first places the circuit board to be mounted into the board placement box, and then slides it into two positioning rails to limit the left and right positions of the circuit board and the board placement box. Subsequently, the calibration component can synchronously push the two sides of the board placement box to move it into the two positioning rails, so that the side of the board placement box and the side of the positioning rail are at the same horizontal position. This is the placement area. In the subsequent mounting process, the mounting nozzle can be controlled to pick up the mounting piece and move it to the placement area of ​​the circuit board for directional mounting. Furthermore, after placement, the anti-lifting component can detect any small impurities at the bottom of the circuit board, thus preventing uneven placement of the circuit board and avoiding affecting subsequent surface mount technology (SMT) processes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the anti-tilting component of the board box of this utility model. Figure 3 This is a schematic diagram of the structure of the plate-laying box, calibration component, and linkage component of this utility model. Figure 4 This is a schematic diagram of the structure of the chip mounter body of this utility model; Figure 5 This is a schematic diagram of the structure of the positioning rail and the plate-laying box of this utility model.

[0017] In the diagram: 1. Pick and place machine body; 2. Positioning rail; 3. Plate placement box; 4. Push block; 5. Calibration plate; 6. Electric push rod; 7. Connecting rod; 8. Rack; 9. Rotating shaft; 10. Rotating gear; 11. Drive shaft; 12. Drive gear ring; 13. Drive gear; 14. Support rod; 15. Detection rod. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-5As shown, this invention illustrates a circuit board placement machine with automatic calibration function in one embodiment of the present invention. The machine includes a placement machine body 1, a positioning rail 2, a board placement box 3, a calibration component, a linkage component, and an anti-tilting component. Two positioning rails 2 are provided, both fixedly mounted on the upper surface of the placement machine body 1. The board placement box 3 is slidably mounted between the two positioning rails 2. The calibration component is located on the upper surface of the placement machine body 1 and is used to push the board placement box 3 to a designated placement area. The linkage component is located inside the placement machine body 1 and is used to drive the calibration component to synchronously clamp and calibrate the board placement box 3 to both sides. The anti-tilting component is located at the top of the board placement box 3.

[0025] like Figure 4 and Figure 5 As shown, when mounting the circuit board, the worker first takes out the board placement box 3. Because the board placement box 3 has a board placement slot inside, and the board placement slot is compatible with the circuit board, the worker wearing insulated gloves takes a circuit board and places it into the placement slot of the board placement box 3 to make it fit. At this time, the circuit board will not move in the placement slot and can fit perfectly on all sides. Then the board placement box 3 is placed between two positioning rails 2 and slid in. It should be noted that the side of the positioning rail 2 has a sliding groove that is open on both sides, which can limit the front and back movement of the board placement box 3.

[0026] like Figure 3 As shown, after sliding in, the placement box 3 can be pushed to the designated position through the calibration component and the linkage component. The calibration component includes a push block 4, a calibration plate 5, and an electric push rod 6. There are two push blocks 4, both of which are slidably mounted on the upper surface of the placement machine body 1 via a sliding rod. There are also two calibration plates 5, which are fixedly mounted on the sides of the two push blocks 4 respectively. The electric push rod 6 is mounted on the side of the placement machine body 1, and the output end of the electric push rod 6 is fixedly connected to the side of one of the push blocks 4. The linkage component includes a connecting rod 7, a rack 8, a rotating shaft 9, a rotating gear 10, and a transmission component. The bottom end of each of the two push blocks 4 is fixedly mounted with a connecting rod 7, and the connecting rod 7 passes through the sliding rod. Mounted on the upper surface of the pick-and-place machine body 1, racks 8 are fixedly mounted at the bottom ends of the two connecting rods 7. Two rotating shafts 9 are provided, and both rotating shafts 9 are rotatably mounted inside the pick-and-place machine body 1 via a support frame. Rotating gears 10 are fixedly mounted on the side of the rotating shafts 9, and the rotating gears 10 mesh with the racks 8. The transmission assembly is located inside the pick-and-place machine body 1. The transmission assembly includes a transmission shaft 11, a transmission gear ring 12, and a transmission gear 13. The transmission shaft 11 is rotatably mounted inside the pick-and-place machine body 1 via a mounting frame. Transmission gear rings 12 are fixedly mounted on both rotating shafts 9. Transmission gears 13 are fixedly mounted at both ends of the transmission shaft 11, and the two transmission gears 13 mesh with the two transmission gear rings 12 respectively.

[0027] Specifically, when the electric push rod 6 is activated, its output end drives one of the push blocks 4 to move forward. The push block 4 then moves one of the calibration plates 5 towards the plate placement box 3. At this time, one of the connecting rods 7 moves synchronously under the drive of the push rod, and also drives one of the racks 8 to move forward. The rack 8 drives one of the rotating gears 10 to rotate, which in turn drives one of the rotating shafts 9 to rotate. The rotating shaft 9 drives one of the transmission gear rings 12 to rotate, which in turn drives the transmission gear 13 meshing with it to rotate. The transmission gear 13 drives the transmission shaft 11 to rotate, which in turn drives another transmission gear 13 to rotate, which in turn drives the transmission gear ring 12 meshing with it to rotate. At this time, the other rotating shaft 9 rotates synchronously, driving the rotating gear 10 to rotate. The rotation causes another rack 8 to move forward, thereby moving another calibration plate 5 forward. At this time, the two calibration plates 5 move relative to each other. Since the length of the plate placement box 3 is the same as the length of the positioning rail 2, and the length of the calibration plate 5 is longer than the distance between the two positioning rails 2, if the plate placement box 3 is placed correctly, the two calibration plates 5 can simultaneously contact both sides of the plate placement box 3. If the plate placement box 3 is not placed correctly, one of the calibration plates 5 will adhere to the side of the plate placement box 3 and then be pushed until both calibration plates 5 are in contact with the side of the plate placement box 3. This is the correct placement area. It should be added that when the side of the plate placement box 3 and the side of the positioning rail 2 are at the same horizontal position, the calibration plate 5 will simultaneously adhere to the side of both the plate placement box 3 and the side of the positioning rail 2.

[0028] like Figure 2 As shown, after the circuit board is placed in the placement slot, the anti-tilting component can first detect whether the circuit board is placed horizontally. The anti-tilting component includes support rods 14 and detection rods 15. Four support rods 14 are fixedly installed on the top of the board placement box 3. Detection rods 15 are rotatably installed on each of the four support rods 14 via rotating shafts. Specifically, by rotating the position of the detection rod 15 on the support rod 14, the bottom end of the support rod 14 is rotated to the top of the circuit board. At this time, the support rod 14 is not in contact with the top of the circuit board but is relatively close. If there is a tilted part of the circuit board, it can prevent the rotation of the detection rod 15. After the detection is completed, the detection rod 15 can be rotated away from the top of the circuit board.

[0029] Working principle: When mounting circuit boards, the operator first takes out the board placement box 3, and wearing insulated gloves, takes a circuit board and places it into the placement slot of the board placement box 3 to make it fit. Then, the board placement box 3 is placed between the two positioning rails 2 and slid in. Then, the position of the detection rod 15 on the support rod 14 is rotated so that the bottom end of the support rod 14 rotates to the top of the circuit board. If there is a raised part of the circuit board, it can block the rotation of the detection rod 15. After the test is completed, the detection rod 15 can be rotated to move away from the top of the circuit board.

[0030] After the test is completed, the electric push rod 6 is activated. The output end of the electric push rod 6 drives one of the push blocks 4 to move forward. The push block 4 drives one of the calibration plates 5 to move towards the plate placement box 3. At this time, one of the connecting rods 7 moves synchronously under the drive of the push rod, and drives one of the racks 8 to move forward. The rack 8 drives one of the rotating gears 10 to rotate, thereby driving one of the rotating shafts 9 to rotate. The rotating shaft 9 drives one of the transmission gear rings 12 to rotate. The transmission gear ring 12 drives the transmission gear 13 meshing with it to rotate. The transmission gear 13 drives the transmission shaft 11 to rotate, which in turn drives another transmission gear 13 to rotate, which in turn drives the transmission gear ring 12 meshing with it to rotate. At this time, the other rotating shaft 9 rotates synchronously. Under the rotation of the rotating gear 10, the other rack 8 moves forward, thereby driving the other calibration plate 5 to move forward. At this time, the two calibration plates 5 move relative to each other and are then pushed until both calibration plates 5 contact the side of the plate placement box 3. This is the correct placement area.

[0031] After placement, the pick-and-place machine body 1 is started. The placement nozzle on the pick-and-place machine body 1 can move back, forth, left, and right under the operation of the CNC system. The other end of the pick-and-place machine body 1 has a placement box for storing the placement components. Under the control of negative pressure adsorption, the placement nozzle can move into the placement box to adsorb the placement components, and then move again to the board placement box 3 above the correct placement position to place the components on the circuit board. Through program settings, the placement nozzle can actively and accurately move to the correct placement position and then move down to place the components on the circuit board. This is existing technology. Furthermore, the power source of the electric push rod 6 is consistent with the power source of the pick-and-place machine body 1. When placing components, if the pick-and-place machine body 1 is placed in the working room or return room, the power supply in the room can power the device.

[0032] After the surface mount technology (SMT) is completed, the worker can wear insulated gloves, take out the board placement box 3, flip it over, and tilt the board out.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A circuit board placement machine with automatic calibration function, comprising a placement machine body (1), characterized in that, Also includes: Positioning rail (2), two positioning rails (2) are provided, and both positioning rails (2) are fixedly installed on the upper surface of the pick and place machine body (1); A plate-laying box (3) is slidably mounted between two positioning rails (2); A calibration component is disposed on the upper surface of the pick-and-place machine body (1) for pushing the plate placement box (3) to the designated placement area; The linkage component is located inside the pick and place machine body (1) and is used to drive the calibration component to perform clamping and calibration on both sides of the plate placement box (3) synchronously. An anti-tilting component is disposed at the top of the plate box (3).

2. A circuit board placement machine with automatic calibration function according to claim 1, characterized in that, The calibration components include: Pushing blocks (4), two pushing blocks (4) are provided, and both pushing blocks (4) are slidably mounted on the upper surface of the pick-and-place machine body (1) via sliding rods; Calibration plate (5), two calibration plates (5) are provided, and the two calibration plates (5) are respectively fixedly installed on the sides of the two push blocks (4); An electric push rod (6) is mounted on the side of the pick-and-place machine body (1), and the output end of the electric push rod (6) is fixedly connected to the side of one of the push blocks (4).

3. A circuit board placement machine with automatic calibration function according to claim 2, characterized in that, The linkage component includes: The connecting rod (7) is fixedly installed at the bottom end of both push blocks (4), and the connecting rod (7) slides through and is installed on the upper surface of the pick and place machine body (1). Rack (8), the bottom ends of the two connecting rods (7) are fixedly installed with rack (8); Two rotating shafts (9) are provided, and both rotating shafts (9) are rotatably installed inside the pick and place machine body (1) via a support frame; A rotating gear (10) is fixedly mounted on the side of the rotating shaft (9), and the rotating gear (10) meshes with the rack (8); A transmission assembly is disposed inside the body (1) of the pick-and-place machine.

4. A circuit board placement machine with automatic calibration function according to claim 3, characterized in that, The transmission assembly includes: A drive shaft (11) is rotatably mounted inside the chip mounter body (1) via a mounting bracket; The transmission gear ring (12) is fixedly installed on both of the two rotating shafts (9). The transmission gear (13) is fixedly installed at both ends of the transmission shaft (11), and the two transmission gears (13) mesh with the two transmission gear rings (12) respectively.

5. A circuit board placement machine with automatic calibration function according to claim 4, characterized in that, The anti-tilting component includes: Support rods (14), four of the support rods (14) are fixedly installed on the top of the plate box (3). The detection rod (15) is rotatably mounted on each of the four support rods (14) via a rotating shaft.

6. A circuit board placement machine with automatic calibration function according to claim 1, characterized in that, The board placement box (3) has a board placement slot inside, and the board placement slot is adapted to the circuit board.

7. A circuit board placement machine with automatic calibration function according to claim 1, characterized in that, The length of the plate box (3) is consistent with the length of the positioning rail (2).

8. A circuit board placement machine with automatic calibration function according to claim 2, characterized in that, The length of the calibration plate (5) is longer than the distance between the two positioning rails (2).

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