Material box position identification device for feeding trolley of chip mounter

Abstract

The utility model discloses a material box position identification device of a chip mounter feeding trolley, which comprises a feeding trolley and a calibration plate assembly, at least one layer of material storage position is arranged on the feeding trolley, the material storage position is configured to temporarily store a plurality of material boxes, and the material boxes are configured to bear a material tray; the calibration plate assembly comprises a calibration plate, a calibration datum line and a plurality of identification codes are arranged on the top surface of the calibration plate at intervals, and each identification code corresponds to at least one material box; and a detection piece of the carrying mechanism photographs or scans the calibration datum line and the identification code to obtain position information of the material box corresponding to the identification code, and the new material tray is moved into the material box or the old material tray in the material box is taken out through the carrying mechanism according to the position information. According to the material box position recognition device, when the carrying mechanism takes and places the material disc, the position information of the corresponding material box is obtained by photographing or scanning the recognition code so as to control the carrying mechanism to take and place the material disc smoothly in the follow-up process, and the operation accuracy of the material receiving machine can be improved.

Description

Technical Field

[0001] This application belongs to the field of pick and place machine technology, and in particular relates to a material box position identification device for a pick and place machine feeding trolley. Background Technology

[0002] A pick-and-place machine is a device that accurately places surface mount components onto PCB pads by moving a placement head. A pick-and-place machine requires multiple feed trolleys to supply tape. Each feed trolley has multiple hoppers for holding tapes. Typically, when the tape in the pick-and-place machine is about to run out, a tape feeder connects the head of a new tape to the tail of the old tape. After connection, the new tape is placed into the corresponding hopper on the feed trolley.

[0003] During the operation of the material receiving machine, the old material trays need to be removed from the material box on the feeding trolley by the conveying mechanism, and the new material trays after assembly need to be placed in the material box on the feeding trolley. Before picking up and placing the material trays, the conveying mechanism needs to position the material box to ensure the accuracy of picking up and placing the material trays. The existing positioning method usually uses a camera to take pictures of the designated material box for positioning. In the actual operation, due to the possible differences in the installation positions of multiple feeding trolleys, the angle between the conveying mechanism and different feeding trolleys that perform the picking and placing of material trays is different, which cannot meet the accurate positioning of the material box and affects the normal picking and placing of material trays by the conveying mechanism. Utility Model Content

[0004] The purpose of this application is to provide a material box position identification device for a chip mounter feeding trolley, so as to solve the problem of large positioning error in the material receiving mechanism of the prior art when picking up and putting down material boxes.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] A material box position identification device for a pick and place machine feeding trolley includes a feeding trolley and a calibration plate assembly, wherein:

[0007] The feeding trolley is provided with at least one layer of storage positions extending along a first horizontal direction. The storage positions are configured to temporarily store a plurality of material boxes arranged side by side along the first horizontal direction. The material boxes are configured to carry a material tray.

[0008] The calibration plate assembly includes a calibration plate, which is disposed below the lowest material storage position and extends out of the feeding trolley. The top surface of the calibration plate is provided with calibration reference lines and a number of identification codes at intervals, each identification code corresponding to at least one material box. The calibration reference lines extend along the first horizontal direction.

[0009] The detection component of the conveying mechanism takes pictures or scans the calibration baseline and the plurality of identification codes to obtain the position information of the material box corresponding to the identification code. Based on the position information, the conveying mechanism moves the new material tray into the material box or removes the old material tray from the material box.

[0010] Furthermore, the calibration plate assembly also includes a connector, the first end of which is fixedly mounted on the frame of the feeding trolley, and the second end of which is fixedly mounted on the calibration plate.

[0011] Furthermore, the first end of the connector is detachably fixed to the frame by a number of fixing screws, and the second end of the connector is detachably fixed to the calibration plate by a number of fixing screws.

[0012] Furthermore, the connector is mounted perpendicular to the frame of the feeding trolley, the calibration plate is mounted perpendicular to the connector, and the calibration plate extends along the first horizontal direction.

[0013] Furthermore, the frame is provided with at least two first reference holes spaced apart, and the top surface of the connector is provided with at least two second reference holes spaced apart. Each first reference hole corresponds to one second reference hole. A first positioning pin is provided at the position corresponding to the first reference hole. The positioning pin passes through the first reference hole and the second reference hole from top to bottom.

[0014] At least two third reference holes are spaced apart on the bottom surface of the connector, and at least two fourth reference holes are spaced apart on the calibration plate. A second positioning pin is provided at the position corresponding to the fourth reference hole, and the second positioning pin passes through the fourth reference hole and the third reference hole in sequence from bottom to top.

[0015] Furthermore, the identification code is a barcode or a QR code, and the detection device is a camera.

[0016] Furthermore, the identification code is printed or engraved on the top surface of the calibration plate.

[0017] Furthermore, the identification code is set on the label, and the label is affixed to the top surface of the calibration plate.

[0018] Furthermore, the plurality of identification codes are arranged side by side along the first horizontal direction, and each identification code corresponds to the corresponding material box in the second horizontal direction, wherein the first horizontal direction is perpendicular to the second horizontal direction.

[0019] Furthermore, the feeding trolley is equipped with two layers of storage positions.

[0020] Compared with existing technologies, the advantages of the material box position recognition device for the chip mounter feeding trolley are as follows:

[0021] 1) By setting a calibration plate on the feeding trolley and setting a calibration baseline and several identification codes on the calibration plate, the angle between the conveying mechanism and the feeding trolley can be calibrated by the calibration baseline, and the position information of the corresponding material box in the X and Y directions can be identified by the identification codes. When the conveying mechanism picks up and puts up the material tray, the position information of the corresponding material box can be obtained by taking pictures or scanning the calibration baseline and identification codes. The position information of the corresponding material box can be accurately obtained to control the conveying mechanism to pick up and put up the material tray smoothly, which is conducive to improving the operating accuracy of the receiving machine.

[0022] 2) The calibration baseline and several identification codes are set on the same calibration plate, which can simplify the movement path of the conveying mechanism, further improve the working efficiency of the receiving machine, and facilitate the control of the picking and placing of the material tray;

[0023] 3) The calibration board assembly has a simple overall structure, ingenious design, and reasonable layout. Attached Figure Description

[0024] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the material box position recognition device of the chip mounter feeding trolley provided in the embodiments of this application;

[0026] Figure 2 This is a three-dimensional schematic diagram of the mounting structure of the calibration plate assembly of the material box position identification device of the chip mounter feeding trolley provided in the embodiments of this application;

[0027] Figure 3 This is a top view schematic diagram of the installation structure of the calibration plate assembly of the material box position identification device of the chip mounter feeding trolley provided in the embodiments of this application;

[0028] Figure 4 This is a front view schematic diagram of the installation structure of the calibration plate assembly of the material box position identification device of the chip mounter feeding trolley provided in the embodiments of this application. Detailed Implementation

[0029] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 4 As shown, in this embodiment, a material box position identification device for a chip mounter feeding trolley includes a feeding trolley 10 and a calibration plate assembly 20. The feeding trolley 10 is provided with at least one layer of storage positions 11 extending along a first horizontal direction. The storage positions 11 are configured to temporarily store materials along the first horizontal direction (…). Figure 1 The system comprises several material boxes 12 arranged side by side in the X direction, each configured to hold a material tray (not shown in the figure); the calibration plate assembly 20 includes a calibration plate 21, which is located below the lowest storage position 11 and extends out of the feeding trolley 10. The top surface of the calibration plate 21 is provided with a calibration reference line 26 and several identification codes 22 arranged at intervals, each identification code 22 corresponding to a material box 12. The calibration reference line 26 extends along the first horizontal direction; the detection component of the conveying mechanism takes a picture or scans the calibration reference line 26 and the identification codes 22 to obtain the position information of the material box 12 corresponding to the identification code 22. Based on the position information, the conveying mechanism moves a new material tray into the material box 12 or removes an old material tray from the material box 12.

[0032] It should be noted that: the calibration baseline 26 is used to calibrate the angle between the frame of the conveying mechanism and the corresponding feeding trolley, and the identification code 22 is used to identify the position information of the corresponding material box in the X and Y directions.

[0033] It should be noted that the handling mechanism includes a robotic arm, and the execution end of the robotic arm is equipped with a detection component and a picking component. The detection end of the detection component faces downward, and the detection component faces downward to take pictures or scan the calibration reference line 26 and identification code 22 on the top surface of the calibration plate 21. The picking component is used to pick up or release new or old material trays.

[0034] As can be seen, by setting a calibration plate 21 on the feeding trolley 10 and setting a calibration baseline 26 and several identification codes 22 on the calibration plate 21, the angle between the conveying mechanism and the feeding trolley can be calibrated by taking a picture or scanning the calibration baseline 26 when the conveying mechanism picks up and puts down the material tray. The position information of the corresponding material box 12 can be obtained by taking a picture or scanning the identification code. The position information of the corresponding material box 12 can be accurately obtained so as to control the conveying mechanism to pick up and put down the material tray smoothly, which is conducive to improving the accuracy of the receiving machine.

[0035] In one embodiment, the calibration plate assembly 20 also includes a connector 23, the first end of which is fixedly mounted on the frame 13 of the feeding trolley 10, and the second end of which is fixedly mounted on the calibration plate 21.

[0036] Specifically, the connector 23 is a flat plate with weight-reduction holes 24, which reduces the overall weight of the connector 23 while ensuring connection reliability.

[0037] As can be seen, by setting the connector 23, the calibration plate 21 can be detachably and fixedly installed on the feeding trolley 10, which facilitates the replacement of the calibration plate 21.

[0038] In one embodiment, the first end of the connector 23 is detachably fixed to the frame 13 by a number of fixing screws, and the second end of the connector 23 is detachably fixed to the calibration plate 21 by a number of fixing screws.

[0039] As can be seen, the connection between the connector 23 and the frame 13 and the calibration plate 21 is achieved by the cooperation of the fixing screw and the threaded hole. This provides a simple, easy-to-implement, and easy-to-operate connection method between the connector 23 and the frame 13 and the calibration plate 21.

[0040] In one implementation, the connector 23 is mounted vertically on the frame 13 of the feeding trolley 10, and the calibration plate 21 is mounted vertically on the connector 23, extending along a first horizontal direction. This provides a reasonably laid-out assembly of the connector 23 and the calibration plate 21 that is easy to install.

[0041] In one embodiment, at least two first reference holes 14 are spaced apart on the frame 13, and at least two second reference holes 25 are spaced apart on the top surface of the connector 23. Each first reference hole 14 corresponds to one second reference hole 25. A first positioning pin is provided on the material box corresponding to the position of the first reference hole 14. The first positioning pin passes through the first reference hole 14 and the second reference hole 25 from top to bottom.

[0042] At least two third reference holes 27 are spaced apart on the bottom surface of the connector 23, and at least two fourth reference holes 28 are spaced apart on the calibration plate 21. A second positioning pin is provided at the position corresponding to the fourth reference hole 28, and the second positioning pin passes through the fourth reference hole 28 and the third reference hole 27 from bottom to top.

[0043] It can be seen that by setting the first reference hole 14 and the second reference hole 25 and cooperating with the first positioning pin, the installation accuracy of the connector 23 on the frame 13 is improved. By setting the third reference hole 27 and the fourth reference hole 28 and cooperating with the second positioning pin, the installation accuracy of the calibration plate 21 and the connector 23 is improved, thereby ensuring the accuracy of the identification code 22 on the calibration plate 21 of the detection component of the handling mechanism.

[0044] In one implementation, the identification code 22 is a barcode or QR code, and the detection device is a camera.

[0045] In one implementation, the identification code 22 is printed or engraved on the top surface of the calibration plate 21.

[0046] In one implementation, the identification code 22 is set on the label, which is affixed to the top surface of the calibration plate 21, making it easy to replace the identification code 22.

[0047] In one implementation, several identification codes 22 are arranged side by side along a first horizontal direction, and each identification code 22 is associated with a corresponding material box 12 in a second horizontal direction. Figure 1 Corresponding to the Y direction in the diagram, the first horizontal direction is perpendicular to the second horizontal direction.

[0048] In one implementation, the feeding trolley 10 is provided with two layers of storage positions 11 to increase the storage capacity of the feeding trolley 10.

[0049] The working principle of the material box position recognition device of the above-mentioned pick-and-place machine feeding trolley is as follows:

[0050] When the handling mechanism needs to remove the old material tray from the corresponding material box 12, the robotic arm first drives the detection component to move directly above the identification code 22 corresponding to the material box 12 containing the old material tray on the calibration plate 21. The detection component takes a picture of the calibration baseline 26 and the identification code 22 directly below to obtain the position information of the material box 12 containing the old material tray. Based on the obtained position information, the robotic arm then drives the picking component to move to the corresponding material box 12 to pick up the old material tray.

[0051] When the handling mechanism needs to place a new tray into the corresponding box 12, the robotic arm first drives the detection component to move to the calibration plate 21 directly above the identification code 22 corresponding to the box 12 to which the new tray is to be placed. The detection component takes a picture of the calibration baseline 26 and the identification code 22 directly below to obtain the position information of the box 12 to which the new tray is to be placed. Based on the obtained position information, the robotic arm then drives the picking component to move to the corresponding box 12 and puts the new tray into the corresponding box 12.

[0052] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A material box position identification device for a chip mounter feeding trolley, characterized in that, The material box position identification device of the chip mounter feeding trolley includes a feeding trolley and a calibration plate assembly, wherein: The feeding trolley is provided with at least one layer of storage positions extending along a first horizontal direction. The storage positions are configured to temporarily store a plurality of material boxes arranged side by side along the first horizontal direction. The material boxes are configured to carry a material tray. The calibration plate assembly includes a calibration plate, which is disposed below the lowest material storage position and extends out of the feeding trolley. The top surface of the calibration plate is provided with calibration reference lines and a number of identification codes at intervals, each identification code corresponding to at least one material box. The calibration reference lines extend along the first horizontal direction. The detection component of the conveying mechanism takes pictures or scans the calibration baseline and the plurality of identification codes to obtain the position information of the material box corresponding to the identification code. Based on the position information, the conveying mechanism moves the new material tray into the material box or removes the old material tray from the material box.

2. The material box position identification device for the feed trolley of the chip mounter according to claim 1, characterized in that, The calibration plate assembly also includes a connector, the first end of which is fixedly mounted on the frame of the feeding trolley, and the second end of which is fixedly mounted on the calibration plate.

3. The material box position identification device for the feed trolley of the chip mounter according to claim 2, characterized in that, The first end of the connector is detachably fixed to the frame by a number of fixing screws, and the second end of the connector is detachably fixed to the calibration plate by a number of fixing screws.

4. The material box position identification device for the feed trolley of the placement machine according to claim 2, characterized in that, The connector is mounted perpendicular to the frame of the feeding trolley, the calibration plate is mounted perpendicular to the connector, and the calibration plate extends along the first horizontal direction.

5. The material box position identification device for the feed trolley of the chip mounter according to claim 2, characterized in that, The frame is provided with at least two first reference holes spaced apart, and the top surface of the connector is provided with at least two second reference holes spaced apart. Each first reference hole corresponds to one second reference hole. A first positioning pin is provided at the position corresponding to the first reference hole. The positioning pin passes through the first reference hole and the second reference hole from top to bottom. At least two third reference holes are spaced apart on the bottom surface of the connector, and at least two fourth reference holes are spaced apart on the calibration plate. A second positioning pin is provided at the position corresponding to the fourth reference hole, and the second positioning pin passes through the fourth reference hole and the third reference hole in sequence from bottom to top.

6. The material box position identification device for the feed trolley of the placement machine according to claim 1, characterized in that, The identification code is a barcode or a QR code, and the detection device is a camera.

7. The material box position identification device for the feed trolley of the placement machine according to claim 6, characterized in that, The identification code is printed or engraved on the top surface of the calibration plate.

8. The material box position identification device for the feed trolley of the placement machine according to claim 6, characterized in that, The identification code is set on the label, and the label is affixed to the top surface of the calibration plate.

9. The material box position identification device for the feed trolley of the placement machine according to claim 1, characterized in that, The plurality of identification codes are arranged side by side along the first horizontal direction, and each identification code corresponds to the corresponding material box in the second horizontal direction, wherein the first horizontal direction is perpendicular to the second horizontal direction.

10. The material box position identification device for the feed trolley of the placement machine according to claim 1, characterized in that, The feeding trolley is equipped with two layers of storage positions.

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