A height detection device for installing an alarm contact

Abstract

The present invention discloses a height detection device for installing an alarm contact piece, which includes a workbench and a bottom cover with contact pieces to be detected. On the workbench, there are successively arranged a feeding mechanism for conveying the bottom cover in a posture to be detected, a pressing mechanism for secondarily pressing the contact pieces in the bottom cover, a height detection mechanism for detecting the height difference between the contact points on the contact pieces and the height of the bottom cover, a dust removal mechanism for cleaning the workpieces, and a sorting and discharging mechanism for sorting qualified and unqualified bottom covers. At the same time, a robotic arm is arranged on the workbench between two adjacent mechanisms and can operate between the two mechanisms to convey the bottom cover; this device replaces manual detection, improves the accuracy of product height detection and the efficiency. At the same time, this device also has the functions of secondary pressing of contact pieces, product detection and sorting, and dust removal, realizes the automation of product quality detection, greatly saves labor costs, and realizes strict control of product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of detection with high requirements for component installation, and specifically to a height detection device for the installation of an alarm contact piece. Background Art

[0002] A contact piece is installed inside an automotive speaker to achieve the on-off of a circuit. After the contact piece is installed on the speaker housing, the height of the contact piece is a key parameter for speaker quality control, which directly affects the reliability of the conduction or disconnection of the speaker contact. Most traditional inspection methods rely on vision and experience, or use a ruler for detection, with poor accuracy and low efficiency, and unable to achieve quality control of the speaker. Summary of the Invention

[0003] The purpose of the present invention is to provide a height detection device for the installation of an alarm contact piece to solve the problems of low detection efficiency and poor detection accuracy proposed in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution. A height detection device for the installation of an alarm contact piece includes a workbench and a bottom cover with a contact piece to be detected, and an identification barcode is pasted on each bottom cover. The workbench is sequentially provided with a feeding mechanism for conveying the bottom cover in a posture to be detected, a pressing mechanism for secondarily pressing the contact piece in the bottom cover, a height detection mechanism for detecting the height difference between the contact point on the contact piece and the height of the bottom cover, a dust removal mechanism for cleaning the workpiece, and a sorting and discharging mechanism for sorting qualified and unqualified bottom covers. At the same time, a robotic arm is provided on the workbench corresponding to the space between two adjacent mechanisms to transfer the bottom cover between the two mechanisms.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: This device replaces manual detection, improves the accuracy of product height detection, and improves efficiency. At the same time, this device also has functions such as secondary pressing of the contact piece, product detection and sorting, and dust removal, realizing the automation of product quality detection, greatly saving labor costs, and achieving strict control of product quality.

[0006] Preferably, the feeding mechanism is composed of a feeding frame and a feeding conveyor belt mounted on the feeding frame;

[0007] The pressing mechanism includes a pressing base, a pressing seat arranged corresponding to the pressing base, and a pressing lifting cylinder connected to the pressing seat. Among them, the telescopic end of the pressing lifting cylinder is connected with a pressing plate, and a pressing head is arranged on the pressing plate corresponding to the pressing position of the contact piece in the bottom cover on the pressing base;

[0008] The height detection mechanism includes a detection base, a detection base seat arranged corresponding to the detection base, and a detection lifting air cylinder arranged on the detection base seat. Among them, the telescopic end of the detection lifting air cylinder is connected with a detection seat plate. A first detection head capable of detecting the height of the bottom cover is arranged on the detection seat plate corresponding to the side of the bottom cover, and a second detection head capable of detecting the height of the contact point is arranged on the detection seat plate corresponding to the position of the upper contact point of the contact piece.

[0009] The dust removal mechanism includes a dust removal base arranged on the workbench. A pneumatic clamp seat is rotatably arranged on the dust removal base in a limited manner. The pneumatic clamp seat can be used to clamp or loosen the bottom cover. A blowing device is arranged on one side of the workbench in the rotation direction of the dust removal base, and a dust suction device is arranged between the dust removal base and the blowing device on the workbench. The dust suction device is lower than the blowing device.

[0010] The sorting and blanking mechanism includes a first blanking conveyor belt for receiving the qualified bottom covers detected and a second blanking conveyor belt for receiving the unqualified bottom covers detected. The first blanking conveyor belt and the second blanking conveyor belt are arranged in parallel.

[0011] Preferably, a buffer base is arranged between the feeding mechanism and the pressing mechanism. Positioning seats for limiting and placing the bottom cover are arranged on the belt surface of the feeding conveyor belt, the buffer base, the pressing base, and the detection base. Among them, a limiting cavity for placing the bottom cover is opened on the positioning seat, induction notch openings are opened at both ends of the positioning seat, and clamping notch openings for facilitating clamping and transmission are opened on both sides of the positioning seat. In addition, limiting openings communicated with the limiting cavity are opened on the positioning seats of the pressing base and the detection base. At the same time, telescopic positioning air cylinders are arranged on the pressing base and the detection base corresponding to the limiting openings. The telescopic ends of the telescopic positioning air cylinders extend into the positioning seat from the limiting openings to fix the bottom cover.

[0012] Preferably, the robotic arm on the workbench includes a feeding robotic arm located between the feeding mechanism and the buffer base, a blanking robotic arm located between the dust removal mechanism and the sorting and blanking mechanism, and a conveying robotic arm located between the buffer base and the pressing mechanism, or between the pressing mechanism and the height detection mechanism, or between the height detection mechanism and the dust removal mechanism. Among them:

[0013] The feeding robotic arm includes a feeding mounting base, a feeding pneumatic chuck, a feeding driving motor, a feeding guide plate, and a feeding guide rail spanning the feeding mechanism and the buffer base. At the upper end of the feeding mounting base, a feeding mounting plate is provided on one side corresponding to the feeding mechanism and the buffer base. The feeding guide plate and the feeding guide rail are both arranged on the feeding mounting plate, and a feeding sliding seat is slidably connected to the feeding guide rail. The feeding sliding seat is slidably connected to a feeding base in the vertical direction, and the feeding pneumatic chuck is fixed on the feeding base. At the same time, a feeding guide rod is fixed at the upper end of the feeding base. A U-shaped guiding chute is formed on the feeding guide plate. The feeding driving motor is fixed on the feeding mounting base, and the output end of the feeding driving motor passes through the feeding mounting plate and is connected with a linkage rod. An activity channel is formed on the linkage rod. The feeding guide rod passes through the activity channel and is movably connected in the guiding chute. The feeding pneumatic chuck makes a lifting movement along the trajectory of the guiding chute through the feeding guide rod.

[0014] The discharging robotic arm includes a discharging mounting base, a discharging pneumatic chuck, a discharging driving motor, a discharging guide plate, and a discharging guide rail spanning between the dust removal mechanism and the sorting and discharging mechanism. A discharging mounting seat that can slide from the first discharging conveyor belt towards the second discharging conveyor belt is slidably arranged on the discharging mounting base. A discharging mounting plate is provided on one side of the discharging mounting seat facing the sorting and discharging mechanism and the dust removal mechanism. The discharging guide plate and the discharging guide rail are both arranged on the plate surface of the discharging mounting plate. A discharging sliding seat is slidably connected to the discharging guide rail. The discharging sliding seat is slidably connected to a discharging base in the vertical direction, and the discharging pneumatic chuck is fixed on the discharging base. At the same time, a discharging guide rod is fixed at the upper end of the discharging base. The discharging guide plate is located above the discharging guide rail. A U-shaped guiding track is formed on the discharging guide plate. The output end of the discharging driving motor passes through the discharging mounting plate and is connected with a linkage guide rod. An activity channel is formed on the linkage guide rod. The discharging guide rod passes through the activity channel and is movably connected on the guiding track. The discharging pneumatic chuck makes a lifting movement along the trajectory of the guiding track through the discharging guide rod.

[0015] A conveying guide rail is arranged on the workbench. A conveying sliding seat is slidably connected to the conveying guide rail. A linkage plate is fixed on one side of the conveying sliding seat. The conveying robotic arm is fixed on the linkage plate. A counterweight is fixed on the other side of the conveying sliding seat. The conveying robotic arm includes a horizontal pushing cylinder, a vertical pushing cylinder, and a conveying pneumatic chuck. The horizontal pushing cylinder is fixed on the linkage plate. The telescopic end of the horizontal pushing cylinder is connected with a cylinder mounting seat. The vertical pushing cylinder is fixed on the cylinder mounting seat. The conveying pneumatic chuck is connected to the telescopic end of the vertical pushing cylinder. And a limiting clamp is arranged on the cylinder mounting seat corresponding to the positioning seat.

[0016] Preferably, a height sensor for detecting the height of the outer edge of the bottom cover is provided in the horizontal direction at one end of the detection base corresponding to the positioning seat, so as to avoid problems caused by the bottom cover not being cut flat during production and resulting in bottom cover assembly.

[0017] Preferably, infrared sensors for sensing the arrival of the bottom cover are provided at the output end of the feeding mounting seat corresponding to the output end of the feeding mechanism, at the end positions of the press-fitting mechanism and the height detection mechanism corresponding to the positioning seat, at the pneumatic clamp seat corresponding to the dust removal mechanism, and at the input ends of the first blanking conveyor belt and the second blanking conveyor belt. In addition, scanners for identifying the identification codes on the bottom cover are provided at the output end of the feeding mechanism, at the height detection mechanism, and at the blanking robotic arm. By scanning the identification codes on the bottom cover with the scanner, the detection information is finally input into the identification codes corresponding to the bottom cover, which is convenient for marking and also convenient for the blanking robotic arm to sort and blank.

[0018] Preferably, a PLC controller and a display are further provided on the workbench. The feeding mechanism, the press-fitting mechanism, the height detection mechanism, the dust removal mechanism, the sorting and blanking mechanism, all the infrared sensors, the height sensors, the robotic arm, and the scanners are connected to the PLC controller. The PLC controller is connected to the display, and the display shows the current working conditions of each mechanism, especially showing the detection height data and the height difference data of each detection of the height detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the press-fitting mechanism of the present invention;

[0021] Figure 3 is a schematic structural diagram of the height detection mechanism of the present invention;

[0022] Figure 4 is a schematic structural diagram of the dust removal mechanism of the present invention;

[0023] Figure 5 is a schematic structural diagram of the feeding robotic arm of the present invention;

[0024] Figure 6 is a schematic structural diagram of the blanking robotic arm of the present invention;

[0025] Figure 7 is a schematic structural diagram of the transfer robotic arm of the present invention;

[0026] Figure 8 is a schematic structural diagram of the bottom cover to be detected of the present invention;

[0027] Figure 9 is a schematic structural diagram of the positioning seat and the positioning seat with a limiting port of the present invention.

[0028] In the figure: 1, workbench; 2, bottom cover; 3, loading mechanism; 3-1, loading frame; 3-2, loading conveyor belt; 4, press-fitting mechanism; 4-1, press-fitting base; 4-2, press-fitting seat; 4-3, press-fitting lifting cylinder; 4-4, press-fitting plate; 4-5, press-fitting head; 5, height detection mechanism; 5-1, detection base; 5-2, detection pedestal; 5-3, detection lifting cylinder; 5-4, detection seat plate; 5-5, first detection head; 5-6, second detection head; 6, dust removal mechanism; 6-1, dust removal base; 6-2, pneumatic clamping seat; 6-3, blowing device; 6-4, dust suction device; 6-5, rotating shaft; 6-6, driving motor; 6-7, angle inductor; 6-8, rotating needle; 7, sorting and unloading mechanism; 7-1, first unloading conveyor belt; 7-2, second unloading conveyor belt; 8, buffer base; 9, positioning seat; 9-1, limiting cavity; 9-2, induction notch; 9-3, clamping notch; 9-4, limiting opening; 10, telescopic positioning cylinder; 11, loading robotic arm; 11-1, loading mounting seat; 11-2, loading pneumatic chuck; 11-3, loading driving motor; 11-4, loading guide plate; 11-5, loading guide rail; 11-6, loading mounting plate; 11-7, loading sliding seat; 11-8, loading base; 11-9, loading guide rod; 11-10, guiding chute; 11-11, linkage rod; 11-12, movable channel; 12, unloading robotic arm; 12-1, unloading mounting seat; 12-2, unloading pneumatic chuck; 12-3, unloading driving motor; 12-4, unloading guide plate; 12-5, unloading guide rail; 12-6, unloading mounting base; 12-7, unloading mounting plate; 12-8, unloading sliding seat; 12-9, unloading base; 12-10, unloading guide rod; 12-11, guiding track; 12-12, linkage guide rod; 12-13, movable passage; 13, transfer robotic arm; 13-1, horizontal pushing cylinder; 13-2, vertical pushing cylinder; 13-3, transfer pneumatic chuck; 13-4, cylinder mounting seat; 13-5, limiting clamp; 14, transfer guide rail; 15, transfer sliding seat; 16, linkage plate; 17, counterweight; 18, height sensor; 19, infrared inductor; 20, PLC controller; 21, display; 22, scanner. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-9, the present invention provides a technical solution: a height detection device for an alarm contact piece installation, including a workbench 1 and a bottom cover 2 with contact pieces to be detected. An identification barcode is pasted on each bottom cover. The following are successively provided on the workbench 1:

[0031] A feeding mechanism 3 for conveying the bottom cover 2 in a posture to be detected. The feeding mechanism 3 is composed of a feeding frame 3-1 and a feeding conveyor belt 3-2 mounted on the feeding frame 3-1. In order to convey the bottom cover 2 in a posture to be detected, positioning seats 9 for placing the bottom cover 2 are fixedly arranged in sequence on the feeding conveyor belt 3-2;

[0032] A buffer base 8 for buffering and temporarily storing the bottom cover 2 conveyed by the feeding mechanism 3. The buffer base 8 is also provided with positioning seats 9;

[0033] A press-fitting mechanism 4 for secondarily press-fitting and fixing the contact pieces in the bottom cover 2. The press-fitting mechanism 4 includes a press-fitting base 4-1, a press-fitting seat 4-2 arranged corresponding to the press-fitting base 4-1, and a press-fitting lifting cylinder 4-3 connected to the press-fitting seat 4-2. Among them, the telescopic end of the press-fitting lifting cylinder 4-3 is connected with a press-fitting plate 4-4, and a press-fitting head 4-5 is arranged on the press-fitting plate 4-4 corresponding to the press-fitting position of the contact pieces in the bottom cover 2 on the press-fitting base;

[0034] A height detection mechanism 5 for detecting and calculating the drop between the height of the contact points on the contact piece and the height of the bottom cover 2. The height detection mechanism 5 includes a detection base 5-1, a detection base 5-2 arranged corresponding to the detection base 5-1, and a detection lifting cylinder 5-3 arranged on the detection base 5-2. Among them, the telescopic end of the detection lifting cylinder 5-3 is connected with a detection seat plate 5-4. A first detection head 5-5 capable of detecting the height of the bottom cover 2 is arranged on the detection seat plate 5-4 corresponding to the side of the bottom cover 2, and a second detection head 5-6 capable of detecting the height of the contact points is arranged on the detection seat plate 5-4 corresponding to the position of the contact points on the contact piece;

[0035] Dust removal mechanism 6 is used to clean the workpiece. The dust removal mechanism 6 includes a dust removal base 6-1 provided on the workbench 1. A pneumatic chuck 6-2 is rotatably provided on the dust removal base 6-1. A rotating shaft 6-5 is rotatably inserted through the dust removal base 6-1. One end of the rotating shaft 6-5 is connected with a rotating wheel. At one end of the dust removal base 6-1 corresponding to the rotating wheel, a driving motor 6-6 is provided. The driving motor is connected and linked with the rotating wheel through a transmission belt. At the same time, the bottom of the pneumatic chuck 6-2 is fixed on the rotating shaft 6-5, and the pneumatic chuck 6-2 rotates through the rotating shaft 6-5. And, in order to realize the limited-angle rotation of the pneumatic chuck 6-2, an angle sensor 6-7 is provided at the other end of the dust removal base 6-1 corresponding to the rotating shaft. A rotating needle 6-8 is provided on the rotating shaft 6-5 corresponding to the angle sensor. The rotating needle 6-8 is arranged corresponding to the angle sensor 6-7. The angle of rotation of the rotating shaft 6-5 is sensed by the angle sensor 6-7 sensing the position change of the rotating needle 6-8, so as to realize the limited-angle rotation of the pneumatic chuck 1. The pneumatic chuck 6-2 can be used to clamp or loosen the bottom cover 2. And a blowing device 6-3 is provided on one side of the workbench 1 in the rotating direction of the dust removal base 6-1. And a dust suction device 6-4 is provided between the dust removal base 6-1 and the blowing device 6-3 on the workbench 1. The dust suction device 6-4 is lower than the blowing device 6-3. In addition, a blowing head is also provided above the position of the dust removal base 6-1 after the pneumatic chuck 6-2 rotates, further achieving the dust removal effect;

[0036] Sorting and blanking mechanism 7 is used to sort the qualified and unqualified bottom covers 2. The sorting and blanking mechanism 7 includes a first blanking conveyor belt 7-1 for receiving the qualified bottom covers 2 detected and a second blanking conveyor belt 7-2 for receiving the unqualified bottom covers 2 detected. The first blanking conveyor belt 7-1 and the second blanking conveyor belt 7-2 are arranged in parallel;

[0037] The robotic arm is correspondingly arranged between two adjacent mechanisms to transfer the bottom cover 2 to the next mechanism. The robotic arm is provided on the workbench 1. The robotic arm includes:

[0038] The loading robotic arm 11 is located between the loading mechanism 3 and the buffer base 8. The loading robotic arm 11 includes a loading mounting base 11-1, a loading pneumatic chuck 11-2, a loading driving motor 11-3, a loading guide plate 11-4, and a loading guide rail 11-5 spanning the loading mechanism 3 and the buffer base 8. At the upper end of the loading mounting base 11-1, a loading mounting plate 11-6 is provided on one side corresponding to the loading mechanism 3 and the buffer base 8. The loading guide plate 11-4 and the loading guide rail 11-5 are both provided on the loading mounting plate 11-6, and a loading slide seat 11-7 is slidably connected to the loading guide rail 11-5. The loading slide seat 11-7 is slidably connected to a loading base 11-8 in the vertical direction. The loading pneumatic chuck 11-2 is fixed on the loading base 11-8. At the same time, a loading guide rod 11-9 is fixed to the upper end of the loading base 11-8. A guiding chute 11-10 in a "U" shape is formed on the loading guide plate 11-4. The unloading driving motor 12-3 is fixed on the loading mounting base 11-1, and the output end of the loading driving motor 11-3 passes through the unloading mounting plate 12-7 and is connected with a linkage rod 11-11. An activity channel 11-12 is formed on the linkage rod 11-11. The loading guide rod 11-9 passes through the activity channel 11-12 and is movably connected in the guiding chute 11-10. The loading pneumatic chuck 11-2 makes a lifting movement along the trajectory of the guiding chute 11-10 through the loading guide rod 11-9.

[0039] The blanking robotic arm 12 is located between the dust removal mechanism 6 and the sorting and blanking mechanism 7. The blanking robotic arm 12 includes a blanking mounting base 12-1, a blanking pneumatic chuck 12-2, a blanking driving motor 12-3, a blanking guide plate 12-4, and a blanking guide rail 12-5 that spans between the dust removal mechanism 6 and the sorting and blanking mechanism 7. A blanking mounting base 12-6 that can slide on the blanking mounting base 12-1 and slide from the first blanking conveyor belt 7-1 towards the second blanking conveyor belt 7-2 is provided on the blanking mounting base 12-1. A blanking mounting plate 12-7 is provided on one side of the blanking mounting base 12-6 facing the sorting and blanking mechanism 7 and the dust removal mechanism 6. The blanking guide plate 12-4 and the blanking guide rail 12-5 are both provided on the plate surface of the blanking mounting plate 12-7. A blanking sliding seat 12-8 is slidably connected to the blanking guide rail 12-5. A blanking base 12-9 is slidably connected to the blanking sliding seat 12-8 in the vertical direction. The blanking pneumatic chuck 12-2 is fixed on the blanking base 12-9. At the same time, a blanking guide rod 12-10 is fixed at the upper end of the blanking base 12-9. The blanking guide plate 12-4 is located above the blanking guide rail 12-5. A "U"-shaped guiding groove rail 12-11 is opened on the blanking guide plate 12-4. And the output end of the blanking driving motor 12-3 passes through the blanking mounting plate 12-7 and is connected with a linkage guide rod 12-12. An activity channel 12-13 is opened on the linkage guide rod 12-12. The blanking guide rod 12-10 passes through the activity channel 12-13 and is movably connected to the guiding groove rail 12-11. The blanking pneumatic chuck 12-2 moves up and down along the track of the guiding groove rail 12-11 through the blanking guide rod 12-10;

[0040] The transfer robotic arm 13 is located between the buffer base 8 and the pressing mechanism 4, or between the pressing mechanism 4 and the height detection mechanism 5, or between the height detection mechanism 5 and the dust removal mechanism 6. A transfer guide rail 14 is provided on the workbench 1. A transfer sliding seat 15 is slidably connected to the transfer guide rail 14. A linkage plate 16 is fixed on one side of the transfer sliding seat 15. The transfer robotic arm 13 is fixed on the linkage plate 16. A counterweight 17 is fixed on the other side of the transfer sliding seat 15. And the transfer robotic arm 13 includes a horizontal pushing cylinder 13-1, a vertical pushing cylinder 13-2, and a transfer pneumatic chuck 13-3. The horizontal pushing cylinder 13-1 is fixed on the linkage plate 16. The telescopic end of the horizontal pushing cylinder 13-1 is connected with a cylinder mounting seat 13-4. The vertical pushing cylinder 13-2 is fixed on the cylinder mounting seat 13-4. And the transfer pneumatic chuck 13-3 is connected to the telescopic end of the vertical pushing cylinder 13-2. And a limit clamp 13-5 is provided on the cylinder mounting seat 13-4 corresponding to the positioning seat 9.

[0041] Meanwhile, positioning seats 9 are also provided on the belt surface of the feeding conveyor belt 3-2, the press-fitting base 4-1, and the detection base 5-1. Among them, a limiting cavity 9-1 for placing the bottom cover 2 is formed on the positioning seat 9, and induction notches 9-2 are formed at both ends of the positioning seat 9. Clamping notches 9-3 for facilitating clamping and transmission are formed on both sides of the positioning seat 9. In addition, a limiting port 9-4 communicating with the limiting cavity 9-1 is formed on the positioning seats 9 of the press-fitting base 4-1 and the detection base 5-1. Meanwhile, telescopic positioning cylinders 10 are provided corresponding to the limiting ports 9-4 on the press-fitting base 4-1 and the detection base 5-1. The telescopic ends of the telescopic positioning cylinders 10 extend into the positioning seat 9 from the limiting ports 9-4 to fix the bottom cover 2.

[0042] In addition, a height sensor 18 for detecting the outer edge height of the bottom cover 2 is provided horizontally at one end of the detection base 5-1 corresponding to the positioning seat 9, so as to avoid problems caused by the bottom cover 2 not being cut flat during production and affecting the assembly of the bottom cover 2.

[0043] Moreover, in order to sense the arrival of the bottom cover 2 on each mechanism, infrared sensors 19 are provided at the output end of the feeding mechanism 3 corresponding to the feeding mounting seat 11-1, at the end positions of the press-fitting mechanism 4 and the height detection mechanism 5 corresponding to the positioning seat 9, at the pneumatic clamping seat 6-2 corresponding to the dust removal mechanism 6, and at the input ends of the first discharging conveyor belt 7-1 and the second discharging conveyor belt 7-2. In addition, scanners 22 for identifying the identification codes on the bottom cover are provided at the output end of the feeding mechanism 3, at the height detection mechanism 5, and at the discharging robotic arm 12. By scanning the identification codes on the bottom cover with the scanner 22, the detection information is finally stored in the identification codes corresponding to the bottom cover, which is convenient for marking and also convenient for the discharging robotic arm 12 to sort and discharge.

[0044] A PLC controller 20 and a display 21 are further provided on the workbench 1. The feeding mechanism 3, the press-fitting mechanism 4, the height detection mechanism 5, the dust removal mechanism 6, the sorting and discharging mechanism 7, the infrared sensors 19, the scanners 22, the height sensor 18, and the robotic arm are all connected to the PLC controller 20. The PLC controller 20 is connected to the display 21, and the display 21 shows the current working conditions of each mechanism, especially showing the detection height data and height difference data of the height detection mechanism 5.

[0045] Working principle: The bottom cover 2 equipped with contact pieces is successively placed on the positioning seat 9 of the feeding conveyor belt 3-2. Along with the conveyance of the feeding conveyor belt 3-2, when reaching the output end of the feeding conveyor belt 3-2, the infrared sensor 19 senses the arrival of the bottom cover 2. The scanner 22 scans and identifies the bottom cover 2, and the feeding conveyor belt 3-2 stops conveying. After the feeding robotic arm 11 grabs the bottom cover 2, it makes a "U"-shaped movement of rising, smoothing, and descending along the guiding chute 11-10 under the drive of the feeding drive motor 11-3. When descending, it reaches the position of the buffer base 8. Then, the feeding pneumatic chuck 11-2 releases the bottom cover 2 and places it into the positioning seat 9 of the buffer base 8, and then the feeding pneumatic chuck 11-2 returns to the feeding conveyor belt 3-2 to clamp and take the next bottom cover 2;

[0046] The bottom cover 2 on the buffer base 8 is clamped and sent to the pressing base 4-1 by the conveying robotic arm 13 between the buffer base 8 and the pressing mechanism 4. The telescopic positioning cylinder 10 enters the positioning seat 9 from the limiting port 9-4 to fix the bottom cover 2. Then, the pressing head 4-5 performs secondary pressing on the contact piece inside the bottom cover 2 under the action of the pressing telescopic cylinder, so that the contact piece is firmly fixed inside the bottom cover 2. Then, the conveying robotic arm 13 between the pressing mechanism 4 and the height detection mechanism 5 grabs the pressed bottom cover 2 and transports it to the height detection mechanism 5. At the same time, the conveying robotic arm 13 between the buffer base and the pressing mechanism 4 goes to the buffer base 8 to clamp and take the next bottom cover 2 to the pressing mechanism 4 for the next round of pressing;

[0047] For the bottom cover 2 on the detection base 5-1, the telescopic positioning cylinder 10 first enters and fixes the bottom cover 2 from the limiting port 9-4. The height sensor senses the height of the end assembly point of the bottom cover 2 and then transmits it to the PLC controller 20 for judgment. If the height is within the preset range, it is detected as qualified and marked, and the rest are detected as unqualified and marked; Then, the first detection head 5-5 aligns with the side edge of the bottom cover 2 to measure the height of the bottom cover 2, and the second detection head 5-6 aligns with the contact point of the contact piece to measure the height, and then transmits it to the PLC controller 20 for calculating the height difference between the two. When the height difference is less than 0.5 mm, it is detected as qualified. At the same time, after the scanner at the detection mechanism scans the identification code on the bottom cover 2, the PLC controller marks the detection as qualified or unqualified in the corresponding identification code content of the bottom cover; Finally, it is grabbed by the conveying robotic arm 13 between the height detection mechanism 5 and the dust removal mechanism 6 and conveyed to the dust removal mechanism 6 for dust removal; At the same time, the conveying robotic arm 13 between the pressing mechanism 4 and the height detection mechanism 5 grabs the completed bottom cover and supplements it to the detection base 5-1 for height detection;

[0048] Next, after the bottom cover 2 reaches the dust removal base 6-1, the dust removal base 6-1 rotates a predetermined angle to be in an inclined state, and then the bottom cover 2 is cleaned under the action of the blowing device 6-3 and the dust suction device 6-4; the cleaned bottom cover 2 is sorted and fed by the blanking robotic arm 12, while the dust removal base 6-1 clamps the bottom cover 2 from the detection base 5-1 by the transfer robotic arm 13 to replenish the vacancy. At the blanking robotic arm, the qualified ones are blanked onto the first blanking conveyor belt 7-1 through the marks in the identification code, and the unqualified ones are blanked onto the second blanking conveyor belt 7-2.

[0049] 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 recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A height detection device for installing an alarm contact piece, comprising a workbench (1) and a bottom cover (2) with the contact piece to be detected installed thereon. Each bottom cover is pasted with an identification code, and is characterized in that, On the workbench (1), there are successively arranged a feeding mechanism (3) that can convey the bottom cover (2) in a posture to be detected, a press-fitting mechanism (4) that secondarily presses the contact piece inside the bottom cover (2), a height detection mechanism (5) that can detect the height difference between the contact point on the contact piece and the height of the bottom cover, a dust removal mechanism (6) that cleans the workpiece, and a sorting and discharging mechanism (7) that can sort qualified and unqualified bottom covers. Meanwhile, between two adjacent mechanisms on the workbench (1), there is a robotic arm that can operate between the two mechanisms to convey the bottom cover (2). The feeding mechanism (3) is composed of a feeding frame (3-1) and a feeding conveyor belt (3-2) erected on the feeding frame (3-1). The press-fitting mechanism (4) includes a press-fitting base (4-1), a press-fitting seat (4-2) arranged corresponding to the press-fitting base (4-1), and a press-fitting lifting cylinder (4-3) connected to the press-fitting seat (4-2). Among them, the telescopic end of the press-fitting lifting cylinder (4-3) is connected with a press-fitting plate (4-4), and a press-fitting head (4-5) is arranged on the press-fitting plate (4-4) corresponding to the press-fitting position of the contact piece inside the bottom cover (2) on the press-fitting base (4-1). The height detection mechanism (5) includes a detection base (5-1), a detection base (5-2) arranged corresponding to the detection base (5-1), and a detection lifting cylinder (5-3) arranged on the detection base (5-2). Among them, the telescopic end of the detection lifting cylinder (5-3) is connected with a detection seat plate (5-4), a first detection head (5-5) that can detect the height of the bottom cover (2) is arranged on the detection seat plate (5-4) corresponding to the side of the bottom cover (2), and a second detection head (5-6) that can detect the height of the contact point is arranged on the detection seat plate (5-4) corresponding to the position of the contact point on the contact piece. The dust removal mechanism (6) includes a dust removal base (6-1) arranged on the workbench (1). A pneumatic clamp seat (6-2) is rotatably arranged on the dust removal base (6-1) in a limited manner. The pneumatic clamp seat (6-2) can be used to clamp or loosen the bottom cover (2). And on one side of the workbench (1) in the rotation direction of the dust removal base (6-1), there is a blowing device (6-3), and between the dust removal base (6-1) and the blowing device (6-3) on the workbench (1), there is a dust suction device (6-4), and the dust suction device (6-4) is lower than the blowing device (6-3). The sorting and discharging mechanism (7) includes a first discharging conveyor belt (7-1) that can receive the qualified bottom covers detected and a second discharging conveyor belt (7-2) that receives the unqualified bottom covers detected. The first discharging conveyor belt (7-1) and the second discharging conveyor belt (7-2) are arranged in parallel. A buffer base (8) is provided between the feeding mechanism (3) and the pressing mechanism (4). Positioning seats (9) for limiting and placing the bottom cover (2) are provided on the belt surface of the feeding conveyor belt (3-2), the buffer base (8), the pressing base (4-1), and the detection base (5-1). Among them, a limiting cavity (9-1) for placing the bottom cover is formed on the positioning seat (9), induction slots (9-2) are formed at both ends of the positioning seat (9), and clamping slots (9-3) for facilitating clamping and transmission are formed on both sides of the positioning seat (9). In addition, a limiting port (9-4) communicating with the limiting cavity is formed on the positioning seat (9) on the pressing base (4-1) and the detection base (5-1). At the same time, telescopic positioning cylinders (10) are provided corresponding to the limiting ports (9-4) on the pressing base (4-1) and the detection base (5-1). The telescopic ends of the telescopic positioning cylinders (10) extend into the positioning seat (9) from the limiting ports (9-4) to fix the bottom cover (2).

2. The height detection device for an alarm contact piece installation according to claim 1, wherein, The robotic arms on the workbench (1) include a feeding robotic arm (11) located between the feeding mechanism (3) and the buffer base (8), a discharging robotic arm (12) located between the dust removal mechanism (6) and the sorting and discharging mechanism (7), and a transfer robotic arm (13) located between the buffer base (8) and the pressing mechanism (4), or between the pressing mechanism (4) and the height detection mechanism (5), or between the height detection mechanism (5) and the dust removal mechanism (6). Among them: The feeding robotic arm (11) includes a feeding mounting seat (11-1), a feeding pneumatic chuck (11-2), a feeding drive motor (11-3), a feeding guide plate (11-4), and a feeding guide rail (11-5) spanning the feeding mechanism (3) and the buffer base (8). A feeding mounting plate (11-6) is provided at the upper end of the feeding mounting seat (11-1) corresponding to one side of the feeding mechanism (3) and the buffer base (8). The feeding guide plate (11-4) and the feeding guide rail (11-5) are both provided on the feeding mounting plate (11-6), and a feeding sliding seat (11-7) is slidably connected to the feeding guide rail (11-5). The feeding sliding seat (11-7) is slidably connected to a feeding base (11-8) in the vertical direction. The feeding pneumatic chuck (11-2) is fixed on the feeding base (11-8). At the same time, a feeding guide rod (11-9) is fixed at the upper end of the feeding base (11-8). A U-shaped guiding chute (11-10) is formed on the feeding guide plate (11-4). The feeding drive motor (11-3) is fixed on the feeding mounting seat (11-1), and the output end of the feeding drive motor (11-3) passes through the feeding mounting plate (11-6) and is connected with a linkage rod (11-11). An activity channel (11-12) is formed on the linkage rod (11-11). The feeding guide rod (11-9) passes through the activity channel (11-12) and is movably connected in the guiding chute (11-10). The feeding pneumatic chuck (11-2) moves up and down along the track of the guiding chute (11-10) through the feeding guide rod (11-9). The blanking robotic arm (12) includes a blanking mounting base (12-1), a blanking pneumatic chuck (12-2), a blanking drive motor (12-3), a blanking guide plate (12-4), and a blanking guide rail (12-5) spanning between the dust removal mechanism (6) and the sorting and blanking mechanism (7). A blanking mounting base platform (12-6) that can slide on the blanking mounting base (12-1) from the first blanking conveyor belt (7-1) towards the second blanking conveyor belt (7-2) is provided. A blanking mounting plate (12-7) is provided on one side of the blanking mounting base platform (12-6) facing the sorting and blanking mechanism (7) and the dust removal mechanism (6). The blanking guide plate (12-4) and the blanking guide rail (12-5) are both arranged on the surface of the blanking mounting plate (12-7). A blanking slide seat (12-8) is slidably connected to the blanking guide rail (12-5). A blanking base (12-9) is slidably connected to the blanking slide seat (12-8) in the vertical direction. The blanking pneumatic chuck (12-2) is fixed on the blanking base (12-9). At the same time, a blanking guide rod (12-10) is fixed to the upper end of the blanking base (12-9). The blanking guide plate (12-4) is located above the blanking guide rail (12-5). A "U"-shaped guide groove track (12-11) is formed on the blanking guide plate (12-4). The output end of the blanking drive motor (12-3) passes through the blanking mounting plate (12-7) and is connected with a linkage guide rod (12-12). An activity channel (12-13) is formed on the linkage guide rod (12-12). The blanking guide rod (12-10) passes through the activity channel (12-13) and is movably connected to the guide groove track (12-11). The blanking pneumatic chuck (12-2) moves up and down along the track of the guide groove track (12-11) through the blanking guide rod (12-10). A transfer guide rail (14) is provided on the workbench (1). A transfer slide seat (15) is slidably connected to the transfer guide rail (14). A linkage plate (16) is fixed to one side of the transfer slide seat (15). The transfer robotic arm (13) is fixed to the linkage plate (16). A counterweight block (17) is fixed to the other side of the transfer slide seat (15). The transfer robotic arm (13) includes a horizontal push cylinder (13-1), a vertical push cylinder (13-2), and a transfer pneumatic chuck (13-3). The horizontal push cylinder (13-1) is fixed to the linkage plate (16). The telescopic end of the horizontal push cylinder (13-1) is connected with a cylinder mounting seat (13-4). The vertical push cylinder (13-2) is fixed to the cylinder mounting seat (13-4). The transfer pneumatic chuck (13-3) is connected to the telescopic end of the vertical push cylinder (13-2). A limit clip (13-5) is provided on the cylinder mounting seat (13-4) corresponding to the positioning seat (9).

3. The height detection device for installing an alarm contact piece according to claim 2, characterized in that, A height sensor (18) for detecting the outer edge height of the bottom cover (2) is provided in the horizontal direction at one end of the detection base (5-1) corresponding to the positioning seat (9).

4. The height detection device for installing an alarm contact piece according to claim 3, characterized in that, An infrared sensor (19) capable of sensing the arrival of the bottom cover (2) is provided at the output end of the feeding mounting base (11-1) corresponding to the output end of the feeding mechanism (3), at the end position of the positioning seat (9) corresponding to the press-fitting mechanism (4) and the height detection mechanism (5), at the position corresponding to the pneumatic clamping seat (6-2) of the dust removal mechanism (6), and at the input ends of the first discharging conveyor belt (7-1) and the second discharging conveyor belt (7-2). In addition, a scanner (22) capable of identifying the identification code on the bottom cover is provided at the output end of the feeding mechanism, at the height detection mechanism, and at the discharging robotic arm.

5. The height detection device for installing an alarm contact piece according to claim 4, characterized in that, A PLC controller (20) and a display (21) are further provided on the workbench (1). The feeding mechanism (3), the press-fitting mechanism (4), the height detection mechanism (5), the dust removal mechanism (6), the sorting and discharging mechanism (7), the infrared sensor (19), the robotic arm, and the scanner are all connected to the height sensor (18) and the PLC controller (20), and the PLC controller (20) is connected to the display (21).

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