Device for detecting IC card milling groove depth and chip height

By using a laser rangefinder combined with a movable reflector in the IC card detection device, the problem of redundant equipment for detecting the depth of the IC card slot and the height of the chip is solved, achieving efficient and low-cost detection results.

CN121829340APending Publication Date: 2026-04-10SHENZHEN CHENGTIAN WEIYE TECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-22
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing technologies, the detection of IC card slot depth and chip height requires two separate sets of optical measurement equipment, resulting in redundant equipment layout and increased costs.

Method used

A detection device combining a laser rangefinder and a movable reflector is used to detect the height of IC card motherboards and chips on the feeding and unloading conveyor belts by rotating the movable reflector. This reduces the number of laser rangefinders required, and precise positioning and waste removal are achieved through positioning sliding parts and bidirectional pushing parts.

Benefits of technology

It simplifies equipment design, reduces costs, improves detection efficiency, avoids damage from repeated movement of the laser rangefinder, and enables precise detection of milling groove depth and chip height.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121829340A_ABST
    Figure CN121829340A_ABST
Patent Text Reader

Abstract

The invention discloses a device for detecting the depth of an IC card milling groove and the height of a chip, and the device comprises an IC card chip assembly table, and the two sides of the top of the IC card chip assembly table are respectively provided with a feeding conveying belt and a discharging conveying belt; a shading detection bin is arranged on the top of the feeding conveying belt and the top of the discharging conveying belt in a crossing mode, a laser range finder is installed on the top of the shading detection bin, fixed reflectors are installed at the inner bottoms of the two sides of the shading detection bin respectively, a movable reflector is rotationally arranged below the laser range finder, and a positioning sliding part is slidably arranged in the IC card chip assembly table. When the device is used, the movable reflecting mirror is rotated, so that the laser detector detects the groove depth and the chip height of the two sides respectively, meanwhile, the movable reflecting mirror rotates to drive the positioning sliding piece to move, accurate positioning of a feeding workpiece is achieved, the overall design of reducing redundancy is adopted, and the working efficiency is improved. And the cost is low.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of IC card processing technology, and in particular to a device for detecting the depth of the milled groove and the height of the chip in an IC card. Background Technology

[0002] During the production and processing of IC cards, the motherboard is usually made of plastic and contains a built-in chip. Before assembling the chip with the motherboard, in order to ensure assembly accuracy and avoid damaging the chip, a slot needs to be machined in a predetermined position on the motherboard by milling. Then, glue is applied into the slot, and the chip is bonded to the slot. Finally, a cover plate is attached to the outside of the motherboard to encapsulate the chip.

[0003] However, in actual processing, chips are precision-machined, so thickness errors are very minor and negligible. But during slot milling, uneven depths can easily occur. If the slot is too deep, the chip will be recessed into the slot after bonding, leaving a gap with the cover plate, which may lead to chip loosening later. If the slot is too shallow, the chip will protrude from the slot after bonding, causing pressure on the cover plate during assembly, which can easily damage the chip. Furthermore, the amount of adhesive applied during assembly can also cause the chip to protrude from the slot. Therefore, it is necessary to measure the milling depth and chip height before and after chip assembly. In traditional processing, linear production lines or machining turntables are often used. Regardless of the method, two sets of optical measurement equipment are required during processing, and judgments are needed in both inspection processes. Based on the judgment results, the chips are classified and cut. This results in redundant design of the overall equipment layout and increases costs. To address these issues, a device for detecting the milling depth and chip height of IC cards is provided. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting the milling depth and chip height of IC cards, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for detecting the milling depth and chip height of an IC card, comprising an IC card chip assembly table, wherein two feeding conveyor belts and a discharging conveyor belt for loading and unloading are respectively installed on the top two sides of the IC card chip assembly table; A light-shielding detection chamber is provided across the top of the feeding conveyor belt and the unloading conveyor belt. A laser rangefinder is installed on the top of the light-shielding detection chamber. Fixed reflectors are installed on the bottom of the inner sides of the light-shielding detection chamber. A movable reflector is rotatably arranged below the laser rangefinder. By rotating the movable reflector to face either of the fixed reflectors, the laser rangefinder can perform vertical measurements on the workpieces on the feeding conveyor belt and the unloading conveyor belt respectively. Both the feeding conveyor belt and the unloading conveyor belt are fixedly equipped with equally spaced dividing bars. The dividing bars are used to position the IC cards at intervals. A positioning slider is slidably arranged in the IC card chip assembly table. The positioning slider is drivenly connected to the movable reflector so that when the movable reflector rotates, it drives the positioning slider to slide to a preset position to block the dividing bars, so that the IC card can face directly below the fixed reflector.

[0006] Preferably, the IC card chip assembly station has an upward-protruding partition in the middle, and the feeding conveyor belt and the unloading conveyor belt are respectively arranged on both sides of the partition. The IC card chip assembly station has unloading ports on both sides for unloading defective workpieces. A bidirectional pusher is arranged in the partition and below the light-shielding detection chamber. The bidirectional pusher is used to push the defective workpieces on the feeding conveyor belt and the unloading conveyor belt into the unloading ports for unloading.

[0007] Preferably, a second servo motor is fixedly installed on the outer wall of the light-shielding detection chamber, a flange seat is fixedly provided on the inner wall of the light-shielding detection chamber, a transmission part is fixedly provided on one side of the movable reflector, the transmission part is connected to the flange seat by a bearing, the output end of the second servo motor is fixedly installed with the transmission part, a transmission shaft is fixedly provided on the other side of the movable reflector, and a transmission chain is installed between the transmission shaft and the positioning sliding member.

[0008] Preferably, the positioning sliding member includes a sliding insert plate slidably disposed in the partition, a transmission support frame fixedly disposed on the partition, a transmission shaft rotatably connected in the transmission support frame, a turntable rotatably disposed inside the partition, sprockets fixedly mounted on the turntable and the transmission shaft respectively, a transmission chain installed between the two sets of sprockets, a swing arm fixedly welded to the outer wall of the turntable, a U-shaped groove opened in the middle of the sliding insert plate, and the bottom end of the swing arm disposed in the U-shaped groove, so that the swing arm abuts against the side wall of the U-shaped groove when the turntable rotates, thereby pushing the sliding insert plate to a preset position.

[0009] Preferably, one end of the sliding insert is horizontal and used to block the dividing strip on the feeding conveyor belt; the other end of the sliding insert is bent to form an L-shaped blocking part and used to block the dividing strip on the unloading conveyor belt, so that when the feeding conveyor belt and the unloading conveyor belt running in opposite directions stop after being blocked by the sliding insert, the IC cards on both sides are respectively facing the fixed reflector.

[0010] Preferably, the bidirectional pusher includes a linear motor and a support slide rail spanning the top of the feeding conveyor belt and the unloading conveyor belt. A sliding bar is fixedly installed on the mover of the linear motor. The other end of the sliding bar is slidably mounted on the support slide rail. A pin is integrally formed at the bottom end of the sliding bar, and the pin is directly opposite the unloading port. An anti-gap groove for the sliding bar to pass through is provided in the partition.

[0011] Preferably, a connecting part is fixedly installed on the top of the fixed reflector, and a suspension arm is fixedly installed on the inner top of the light-shielding detection chamber. The connecting part is rotatably connected to the bottom end of the suspension arm. A first servo motor is fixedly installed on the side of the suspension arm. A worm gear is fixedly connected to the output end of the first servo motor. A worm wheel is fixedly fitted on the outer wall of the connecting part. The worm gear meshes with the worm wheel for fine-tuning the reflection angle of the fixed reflector.

[0012] Preferably, a feeding channel for feeding IC card motherboards is fixedly installed on the top of the IC card chip assembly table and at the front end of the feeding conveyor belt. A negative ion dust removal chamber is installed between the feeding channel and the light-shielding detection chamber, so that the IC card motherboards are subjected to negative ion dust removal before entering the light-shielding detection chamber.

[0013] Preferably, a material transfer channel is provided at the end of the partition, and a material transfer conveyor belt is installed in the material transfer channel and at the top of the feeding conveyor belt and the unloading conveyor belt. One end of the material transfer conveyor belt is close to the unloading conveyor belt, and the other end of the material transfer conveyor belt spans the feeding conveyor belt. A pusher is fixedly installed on the outer wall of the material transfer conveyor belt. A groove is provided on the side wall of the IC card chip assembly table to avoid the pusher, so that after the pusher moves with the feeding conveyor belt into the groove, it pushes the fully assembled IC card from the side along the material transfer channel onto the unloading conveyor belt.

[0014] Preferably, an industrial computer is fixedly installed on the outer wall of the light-shielding detection chamber.

[0015] The technical effects and advantages of this invention are as follows: 1. This device for detecting the groove depth and chip height of IC cards uses a light-shielding detection chamber spanning the top of the feeding and unloading conveyors. Fixed reflectors are installed at the top of each end of the light-shielding detection chamber, and a laser rangefinder is installed in the middle. A movable reflector is installed at the bottom of the laser rangefinder. By rotating the movable reflector, the laser rangefinder can detect the groove depth on the IC card motherboard on the feeding conveyor and the height of the assembled chip on the unloading conveyor. This reduces the number of laser rangefinders required, lowers design redundancy, and saves costs. Furthermore, when the laser rangefinder operates alternately left and right, the movable reflector is rotated to avoid damage caused by repeatedly moving the laser rangefinder.

[0016] 2. This device for detecting the depth of the milled slot and the height of the chip in IC cards uses a positioning sliding component that is connected to a movable reflector. During use, as the movable reflector rotates, the sliding plate slides in the opposite direction. Touch sensors are installed on the outer walls of both ends of the sliding plate, facing the feeding and unloading conveyors respectively. The touch sensors are triggered by contact with the separator bars, thereby outputting a stop signal to the feeding and unloading conveyors, thus achieving accurate positioning. The solution is simple and low in cost.

[0017] 3. The device for detecting the milling depth and chip height of IC cards is designed with a bidirectional pusher spanning between two detection stations. At the same time, there are discharge ports on both sides of the IC card chip assembly table. The bidirectional pusher can slide left and right to remove waste products that fail the groove detection and products that fail the chip height detection. This simplifies the design and makes it more concise and efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall outer surface of the present invention; Figure 2 This is a schematic diagram of the interior of the light-shielding detection chamber of the present invention; Figure 3 This is a side view of the entire invention; Figure 4 This is a side view of the internal structure of the light-shielding detection chamber of the present invention; Figure 5 This is a cross-sectional view of the interior of the light-shielding detection chamber of the present invention; Figure 6 This is a cross-sectional view of the internal positioning sliding component of the light-shielding detection chamber of the present invention; Figure 7 This is a schematic diagram of the movable reflector and positioning slider structure of the present invention; Figure 8 This is a schematic diagram of the bidirectional pusher structure of the present invention; Figure 9 This is a schematic diagram of the structure of the outer surface of the fixed reflector of the present invention; Figure 10 This is a schematic diagram of the outer wall structure of the material transfer conveyor belt of the present invention.

[0019] In the diagram: 1. IC card chip assembly table; 12. Divider; 13. Feed port; 14. Clearance groove; 15. Transfer channel; 16. Container trough; 2. Feed conveyor belt; 3. Discharge conveyor belt; 4. Feed channel; 5. Negative ion dust removal chamber; 6. Light-shielding detection chamber; 62. Laser rangefinder; 63. Fixed reflector; 632. Suspension arm; 633. Connecting part; 634. Worm gear; 635. Worm; 636. First servo motor; 64. Movable reflector; 642. Transmission part; 643 644. Second servo motor; 645. Flange seat; 646. Transmission support frame; 647. Transmission shaft; 65. Bidirectional pusher; 651. Linear motor; 652. Sliding bar; 653. Support slide rail; 654. Ejector pin; 66. Positioning sliding component; 661. Sliding insert; 662. L-shaped blocking part; 663. U-shaped groove; 664. Turntable; 665. Swing arm; 666. Sprocket; 667. Transmission chain; 7. Industrial computer; 8. Separating bar; 9. Material transfer conveyor belt; 92. Push bar. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides, for example Figures 1 to 10 The device shown is for detecting the milling depth and chip height of IC cards, including an IC card chip assembly table 1, and two feeding conveyor belts 2 and unloading conveyor belts 3 are respectively installed on the top two sides of the IC card chip assembly table 1. A light-shielding detection chamber 6 is installed across the top of the feeding conveyor belt 2 and the unloading conveyor belt 3. A laser rangefinder 62 is installed on the top of the light-shielding detection chamber 6. Fixed reflectors 63 are installed on the bottom of the inner sides of the light-shielding detection chamber 6. A movable reflector 64 is rotatably installed below the laser rangefinder 62. By rotating the movable reflector 64 to face either fixed reflector 63, the laser rangefinder 62 can perform vertical measurements on the workpieces on the feeding conveyor belt 2 and the unloading conveyor belt 3 respectively. Both the feeding conveyor belt 2 and the unloading conveyor belt 3 are fixedly equipped with equally spaced dividing bars 8. The dividing bars 8 are used to position the IC cards at intervals. A positioning slider 66 is slidably arranged in the IC card chip assembly table 1. The positioning slider 66 is connected to the movable reflector 64 so that when the movable reflector 64 rotates, it drives the positioning slider 66 to slide to a preset position to block the dividing bars 8, so that the IC card can face directly below the fixed reflector 63.

[0022] The IC card chip assembly station 1 has an upward-protruding middle section forming a partition 12, which naturally forms two channels on both sides of the IC card chip assembly station 1, each with the same width as the feeding conveyor belt 2 and the unloading conveyor belt 3. This prevents the IC card motherboard from moving vertically as it moves on the feeding conveyor belt 2 and the unloading conveyor belt 3, while the partition bar 8 restricts its lateral movement, thus keeping the IC card motherboard in a fixed position on the feeding conveyor belt 2 and the unloading conveyor belt 3. The feeding conveyor belt 2 and the unloading conveyor belt 3 are respectively located on both sides of the partition 12. The IC card chip assembly station 1 has unloading ports 13 on both sides for unloading defective workpieces. A bidirectional pusher 65 is provided in the partition 12 and below the light-shielding detection chamber 6. The bidirectional pusher 65 is used to push defective workpieces on the feeding conveyor belt 2 and the unloading conveyor belt 3 into the unloading ports 13 for unloading.

[0023] A second servo motor 643 is fixedly installed on the outer wall of the light-shielding detection chamber 6. A flange seat 644 is fixedly installed on the inner wall of the light-shielding detection chamber 6. A transmission part 642 is fixedly installed on one side of the movable reflector 64. The transmission part 642 is connected to the flange seat 644 by a bearing. The output end of the second servo motor 643 is fixedly installed with the transmission part 642. A transmission shaft 646 is fixedly installed on the other side of the movable reflector 64. A transmission chain 667 is installed between the transmission shaft 646 and the positioning sliding part 66.

[0024] The positioning sliding component 66 includes a sliding insert plate 661 slidably disposed in the partition 12. A transmission support frame 645 is fixedly disposed on the partition 12. A transmission shaft 646 is rotatably connected in the transmission support frame 645. A turntable 664 is rotatably disposed inside the partition 12. Sprockets 666 are fixedly mounted on the turntable 664 and the transmission shaft 646, respectively. A transmission chain 667 is installed between the two sets of sprockets 666. A swing arm 665 is fixedly welded to the outer wall of the turntable 664. A U-shaped groove 663 is opened in the middle of the sliding insert plate 661. The bottom end of the swing arm 665 is disposed in the U-shaped groove 663, so that when the swing arm 665 rotates with the turntable 664, it abuts against the side wall of the U-shaped groove 663, thereby pushing the sliding insert plate 661 to a preset position.

[0025] One end of the sliding plate 661 is horizontal and is used to block the feed conveyor belt 2 on the dividing strip 8. The other end of the sliding plate 661 is bent to form an L-shaped blocking part 662, which is used to block the feed conveyor belt 3 on the dividing strip 8. This ensures that when the feed conveyor belt 2 and the feed conveyor belt 3, which are running in opposite directions, stop after being blocked by the sliding plate 661, the IC cards on both sides are respectively facing the fixed reflector 63. The outer walls of both ends of the sliding plate 661 are respectively provided with touch sensors facing the moving direction of the feed conveyor belt 2 and the feed conveyor belt 3. The touch sensors are triggered by contact with the dividing strip 8, thereby outputting a stop signal to the feed conveyor belt 2 and the feed conveyor belt 3. After the laser rangefinder 62 completes the detection, it gives a start signal to the feed conveyor belt 2 and the feed conveyor belt 3, thereby achieving accurate positioning and a simple positioning scheme.

[0026] The bidirectional pusher 65 includes a linear motor 651 and a support slide rail 653 spanning the top of the feed conveyor belt 2 and the discharge conveyor belt 3. A sliding bar 652 is fixedly installed on the mover of the linear motor 651. The other end of the sliding bar 652 is slidably mounted on the support slide rail 653. A pin 654 is integrally formed at the bottom end of the sliding bar 652. The pin 654 is directly opposite the discharge port 13. An anti-airway groove 14 is provided in the partition 12 for the sliding bar 652 to pass through.

[0027] A connecting part 633 is fixedly installed on the top of the fixed reflector 63. A suspension arm 632 is fixedly installed on the inner top of the light-shielding detection chamber 6. The connecting part 633 is rotatably connected to the bottom end of the suspension arm 632. A first servo motor 636 is fixedly installed on the side of the suspension arm 632. A worm gear 635 is fixedly connected to the output end of the first servo motor 636. A worm wheel 634 is fixedly fitted on the outer wall of the connecting part 633. The worm gear 635 meshes with the worm wheel 634 to finely adjust the reflection angle of the fixed reflector 63. During use, the industrial computer 7 controls and calibrates the device.

[0028] The IC card chip assembly table 1 is topped by a feeding channel 4 for loading IC card motherboards, located at the front end of the feeding conveyor belt 2. A negative ion dust removal chamber 5 is installed between the feeding channel 4 and the light-shielding detection chamber 6, so that the loaded IC card motherboards are subjected to negative ion dust removal before entering the light-shielding detection chamber 6, thereby avoiding dust interference with the detection laser beam.

[0029] A material transfer channel 15 is provided at the end of the partition 12. A material transfer conveyor belt 9 is installed in the material transfer channel 15 and at the top of the feeding conveyor belt 2 and the unloading conveyor belt 3. One end of the material transfer conveyor belt 9 is close to the unloading conveyor belt 3, and the other end of the material transfer conveyor belt 9 spans across the feeding conveyor belt 2. A pusher strip 92 is fixedly installed on the outer wall of the material transfer conveyor belt 9. A receiving groove 16 is provided on the side wall of the IC card chip assembly station 1 to avoid the pusher strip 92, so that after the pusher strip 92 moves into the receiving groove 16 with the feeding conveyor belt 2, it pushes the fully assembled IC card from the side along the material transfer channel 15 onto the unloading conveyor belt 3. A dispensing station and a chip assembly station are installed in sequence at the end of the feeding conveyor belt 2. A photocuring station is installed at the front end of the unloading conveyor belt 3. The workpiece with completed chip assembly is moved to the photocuring station by the material transfer conveyor belt 9. UV glue is used and cured by ultraviolet irradiation. Then, it enters the other side of the light-shielding detection chamber 6 for chip height detection.

[0030] An industrial computer 7 is fixedly installed on the outer wall of the light-shielding detection chamber 6.

[0031] Working principle: When in use, IC card motherboards are fed one by one onto the feeding conveyor belt 2 through the feeding channel 4 and are arranged at equal intervals using the separating baffles 8. As the feeding conveyor belt 2 moves, the IC card motherboards on its surface move to below the fixed reflector 63. At this time, the movable reflector 64 flips to face the fixed reflector 63 on the same side. The laser rangefinder 62 is activated and emits a laser beam to the movable reflector 64. Then, the laser beam is flipped through the fixed reflector 63 to the groove position on the IC card motherboard. The laser beam then returns to the laser rangefinder 62 along the same path. The laser rangefinder 62 calculates the depth of the groove based on the return time. If the groove depth of the IC card motherboard is not qualified, the linear motor 651 is activated. The mover of the linear motor 651 drives the sliding bar 652 to move along the support slide rail 653 to this side. The ejector pin 654 pushes the IC card out from the discharge port 13, completing the waste discharge. If the groove depth is acceptable at this time, the feeding conveyor belt 2 continues to move forward, conveying the IC card motherboard to the dispensing station for groove dispensing, and then moving to the chip assembly station for chip assembly. Then, the IC card motherboard is moved to the unloading conveyor belt 3 by the transfer conveyor belt 9, and then photocuring is performed to solidify the glue. Then, the IC card motherboard with the chip is moved to the side of the fixed reflector 63 by the unloading conveyor belt 3. By flipping the movable reflector 64, the chip height is measured by the laser rangefinder 62. If the chip height is acceptable, it is directly unloaded from the end of the unloading conveyor belt 3. If it is unacceptable, the linear motor 651 drives the sliding bar 652 to move, and the ejector pin 654 pushes the IC card out from the unloading port 13 to complete the waste removal. During continuous processing, as the movable reflector 64 rotates left and right, the drive shaft 646, in conjunction with the drive chain 667, drives the turntable 664 to rotate synchronously. As the turntable 664 swings left and right, it swings inside the U-shaped groove 663 via the swing arm 665, thereby causing the sliding insert 661 to slide in the opposite direction inside the partition 12. When the movable reflector 64 is facing left to perform groove depth detection, the L-shaped blocking part 662 at the end of the sliding insert 661 is in the right channel. At this time, the feeding conveyor 3 carries the IC card motherboard equipped with the chip and moves forward. When it moves to the preset detection position, the separating bar 8 just contacts the L-shaped blocking part 662, thus forming a positioning. At this time, the feeding conveyor 3 stops moving. During this process, the groove depth on the left is detected. Then the movable reflector 64 flips to the right, and at the same time, the feeding conveyor 2 moves. As the movable reflector 64 flips 1 / 2 stroke, this... When the swing arm 665 rotates inside the U-shaped groove 663 until it is close to the left side wall of the U-shaped groove 663, the separator bar 8 at the front end of the IC card motherboard that has just completed the test has exceeded the position of the sliding plate 661. Then the movable reflector 64 continues to rotate 1 / 2 stroke, pushing the sliding plate 661 into the feeding conveyor belt 2. Then the feeding conveyor belt 2 moves, so that the separator bar 8 at the rear end of the IC card motherboard that has just completed the test contacts the sliding plate 661. At this time, the second set of IC card motherboards moves to the preset test position, and the chip height test begins on the right side. The two are tested alternately. This solution can reduce the number of laser rangefinders 62, reduce design redundancy, and save costs. At the same time, when the laser rangefinders 62 work alternately on the left and right sides, it is achieved by rotating the movable reflector 64, avoiding damage caused by repeatedly moving the laser rangefinders 62. Meanwhile, as the movable reflector 64 rotates, it synchronously drives the positioning slider 66 to move, thereby achieving accurate positioning of the objects to be detected on both sides. This eliminates the need for a complex optical positioning scheme and reduces costs.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the milling groove depth and chip height of an IC card, characterized in that, The IC card chip assembly station (1) includes two feeding conveyor belts (2) and unloading conveyor belts (3) installed on the top two sides of the IC card chip assembly station (1). A light-shielding detection chamber (6) is provided across the top of the feeding conveyor belt (2) and the unloading conveyor belt (3). A laser rangefinder (62) is installed on the top of the light-shielding detection chamber (6). Fixed reflectors (63) are installed on the bottom of the inner sides of the light-shielding detection chamber (6). A movable reflector (64) is rotatably provided below the laser rangefinder (62). By rotating the movable reflector (64) to face any of the fixed reflectors (63), the laser rangefinder (62) can perform vertical measurements on the workpieces on the feeding conveyor belt (2) and the unloading conveyor belt (3). Both the feeding conveyor belt (2) and the unloading conveyor belt (3) are fixedly provided with equidistant dividing strips (8). The dividing strips (8) are used to position the IC cards at intervals. The IC card chip assembly table (1) is slidably provided with a positioning slider (66). The positioning slider (66) is connected to the movable reflector (64) so ​​that when the movable reflector (64) rotates, it drives the positioning slider (66) to slide to a preset position to block the dividing strips (8) so that the IC card can face directly below the fixed reflector (63).

2. The device for detecting the milling groove depth and chip height of an IC card according to claim 1, characterized in that, The IC card chip assembly station (1) has a partition (12) formed by the upward bulge in the middle. The feeding conveyor belt (2) and the unloading conveyor belt (3) are respectively arranged on both sides of the partition (12). The IC card chip assembly station (1) has unloading ports (13) for unloading unqualified workpieces on both sides. A bidirectional pusher (65) is arranged in the partition (12) and below the light-shielding detection chamber (6). The bidirectional pusher (65) is used to push unqualified workpieces on the feeding conveyor belt (2) and the unloading conveyor belt (3) into the unloading port (13) for unloading.

3. The device for detecting the milling groove depth and chip height of an IC card according to claim 2, characterized in that, A second servo motor (643) is fixedly installed on the outer wall of the light-shielding detection chamber (6). A flange seat (644) is fixedly installed on the inner wall of the light-shielding detection chamber (6). A transmission part (642) is fixedly installed on one side of the movable reflector (64). The transmission part (642) is connected to the flange seat (644) by a bearing. The output end of the second servo motor (643) is fixedly installed with the transmission part (642). A transmission shaft (646) is fixedly installed on the other side of the movable reflector (64). A transmission chain (667) is installed between the transmission shaft (646) and the positioning sliding member (66).

4. The device for detecting the milling groove depth and chip height of an IC card according to claim 3, characterized in that, The positioning sliding member (66) includes a sliding insert plate (661) slidably disposed in the partition (12). A transmission support frame (645) is fixedly disposed on the partition (12). The transmission shaft (646) is rotatably connected in the transmission support frame (645). A turntable (664) is rotatably disposed inside the partition (12). A sprocket (666) is fixedly mounted on the turntable (664) and the transmission shaft (646). The transmission chain (666) is rotatably connected in the partition (12). 67) Installed between the two sets of sprockets (666), the outer wall of the turntable (664) is fixedly welded with a swing arm (665), and a U-shaped groove (663) is opened in the middle of the sliding plate (661). The bottom end of the swing arm (665) is set in the U-shaped groove (663) so that when the swing arm (665) rotates with the turntable (664), it abuts against the side wall of the U-shaped groove (663), thereby pushing the sliding plate (661) to move to the preset position.

5. The device for detecting the milling groove depth and chip height of an IC card according to claim 4, characterized in that, One end of the sliding plate (661) is horizontal and is used to block the feed conveyor belt (2) on the dividing strip (8); the other end of the sliding plate (661) is bent to form an L-shaped blocking part (662) for blocking the discharge conveyor belt (3) on the dividing strip (8), so that when the feed conveyor belt (2) and the discharge conveyor belt (3) with opposite running directions stop after being blocked by the sliding plate (661), the IC cards on both sides are respectively facing the fixed reflector (63).

6. The device for detecting the milling groove depth and chip height of an IC card according to claim 2, characterized in that, The bidirectional pusher (65) includes a linear motor (651) and a support slide rail (653) spanning the top of the feed conveyor belt (2) and the discharge conveyor belt (3). A sliding bar (652) is fixedly installed on the mover of the linear motor (651). The other end of the sliding bar (652) is slidably disposed on the support slide rail (653). A pin (654) is integrally formed at the bottom end of the sliding bar (652). The pin (654) is directly opposite the discharge port (13). An anti-airway groove (14) is provided in the partition (12) for the sliding bar (652) to pass through.

7. The device for detecting the milling groove depth and chip height of an IC card according to claim 1, characterized in that, A connecting part (633) is fixedly installed on the top of the fixed reflector (63), and a suspension arm (632) is fixedly installed on the inner top of the light-shielding detection chamber (6). The connecting part (633) is rotatably connected to the bottom end of the suspension arm (632). A first servo motor (636) is fixedly installed on the side of the suspension arm (632). A worm gear (635) is fixedly connected to the output end of the first servo motor (636). A worm wheel (634) is fixedly fitted on the outer wall of the connecting part (633). The worm gear (635) meshes with the worm wheel (634) to finely adjust the reflection angle of the fixed reflector (63).

8. The device for detecting the milling groove depth and chip height of an IC card according to claim 1, characterized in that, The IC card chip assembly station (1) is fixedly installed with an IC card motherboard feeding channel (4) at the top and at the front end of the feeding conveyor belt (2). A negative ion dust removal chamber (5) is installed between the feeding channel (4) and the light-shielding detection chamber (6) so that the IC card motherboard is fed into the light-shielding detection chamber (6) after being cleaned by negative ions.

9. The device for detecting the milling groove depth and chip height of an IC card according to claim 2, characterized in that, The end of the partition (12) is provided with a transfer channel (15). A transfer conveyor belt (9) is installed in the transfer channel (15) and on top of the feed conveyor belt (2) and the discharge conveyor belt (3). One end of the transfer conveyor belt (9) is close to the discharge conveyor belt (3), and the other end of the transfer conveyor belt (9) spans the feed conveyor belt (2). A pusher (92) is fixedly installed on the outer wall of the transfer conveyor belt (9). A groove (16) is provided on the side wall of the IC card chip assembly table (1) to avoid the pusher (92), so that after the pusher (92) moves with the feed conveyor belt (2) into the groove (16), the fully assembled IC card is pushed from the side along the transfer channel (15) onto the discharge conveyor belt (3).

10. The device for detecting the milling groove depth and chip height of an IC card according to claim 1, characterized in that, An industrial computer (7) is fixedly installed on the outer wall of the light-shielding detection chamber (6).