Key assembly production line

Abstract

The utility model relates to a key assembly line which comprises a conveying streamline installed on a counter, a metal outer cap jig is connected to the conveying streamline in a sliding mode, a dispensing assembly unit is installed on the counter, the dispensing assembly unit comprises a dispensing mechanism, a frictioning mechanism and a laser altimeter, and the laser altimeter measures the heights of multiple points of an inner cavity of a metal outer cap. The height of the dispensing head on the dispensing mechanism is adjusted according to the height of the dispensing head, so that the uniformity and consistency of dispensing are ensured; according to the glue dispensing device, the glue dispensing head performs glue wiping on the glue wiping mechanism after glue discharging, so that the cleanness of the glue dispensing head is ensured, glue overflowing and glue lacking are avoided during glue dispensing, manual glue dispensing is not needed, the glue dispensing amount and the glue dispensing uniformity can be accurately controlled, and the glue dispensing yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of key assembly, in particular to a key assembly production line. Background Art

[0002] Smart terminals such as mobile phones and tablets are equipped with switch buttons and volume buttons. Most of the buttons are composite parts of a metal outer cap and a plastic bracket, which are tightly fixed together by gluing. The existing button assembly production method is mainly to manually dispense glue in the inner cavity of the metal outer cap, then press the plastic bracket into the metal outer cap, and finally obtain the finished button by pressure-maintaining fixture. However, the amount of glue dispensed and the uniformity of glue dispensed in this manual glue dispensing method are difficult to accurately control, the consistency of glue dispensed is poor, and there are problems such as overflow, lack of glue, and button size exceeding the tolerance range, resulting in a low assembly yield rate. In addition, manual assembly requires a large amount of labor and has low production efficiency, which cannot meet the needs of large-scale production of enterprises. Utility Model Content

[0003] The purpose of the utility model is to design a key assembly production line, which can achieve accurate control of the glue dispensing amount and uniformity without manual glue dispensing, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A button assembly production line comprises a counter and a conveying flow line installed on the counter, a metal outer cap jig is slidably connected to the conveying flow line, a dispensing assembly unit is installed on the counter, the dispensing assembly unit comprises a dispensing mechanism, an wiping mechanism, a laser altimeter, a CCD dispensing glue line inspection mechanism, a plastic bracket feeding mechanism and a plastic bracket assembly mechanism, the wiping mechanism is installed on one side of the conveying flow line and is located below the dispensing mechanism, the laser altimeter is installed on the left side of the dispensing mechanism, and the CCD dispensing glue line inspection mechanism is installed on the right side of the dispensing mechanism; the dispensing mechanism comprises a dispensing head.

[0006] Furthermore, the dispensing assembly unit also includes a CCD mechanism for detecting the size of a metal outer cap, and the CCD mechanism for detecting the size of a metal outer cap includes a CCD camera for detecting the size of a metal outer cap, and the CCD camera for detecting the size of a metal outer cap is located at the front side of the dispensing mechanism and above the conveying streamline.

[0007] Furthermore, the CCD metal outer cap size detection mechanism also includes a metal outer cap size NG discharge assembly, and the metal outer cap size NG discharge assembly includes a metal outer cap size NG discharge box installed on the counter and located on one side of the conveying flow line, a first Y-axis moving assembly installed on the counter, and a metal outer cap size NG adsorption head connected to the first Y-axis moving assembly.

[0008] Furthermore, the CCD glue line inspection mechanism includes a glue line detection CCD camera and a glue line NG discharge component. The glue line NG discharge component includes a glue line NG discharge box installed on the counter and located on one side of the conveying flow line, a third Y-axis moving component installed on the counter, and a glue line NG adsorption head connected to the third Y-axis moving component.

[0009] Furthermore, the glue dispensing mechanism comprises a glue dispensing mounting bracket, a cylinder is mounted on the glue dispensing mounting bracket, an output end of the cylinder is connected to a glue dispensing head mounting seat, and the glue dispensing head is mounted on the glue dispensing head mounting seat.

[0010] Furthermore, the dispensing mechanism also includes an X-axis moving assembly and a second Y-axis moving assembly, the X-axis moving assembly is installed on the counter, the second Y-axis moving assembly is installed on the X-axis moving assembly, and the dispensing mounting bracket is installed on the second Y-axis moving assembly.

[0011] Furthermore, the eraser mechanism comprises an eraser mounting seat, the eraser mounting seat is equipped with a motor, and the output end of the motor is connected to a brush.

[0012] Furthermore, the plastic bracket assembly mechanism includes a plastic bracket assembly robot arm and a plastic bracket size detection component, and the plastic bracket assembly robot arm is connected to a plastic bracket adsorption head; the plastic bracket size detection component includes the plastic bracket size detection upper CCD camera installed on one side of the plastic bracket adsorption head and the plastic bracket positioning lower CCD camera.

[0013] Furthermore, the plastic support feeding mechanism comprises a plastic support guide vibration plate, and the output end of the plastic support guide vibration plate is located at one side of the conveying flow line and below the plastic support assembly robot arm.

[0014] Furthermore, a loading unit, the dispensing assembly unit, a pressure holding unit, a finished product size detection unit and a finished product transfer unit are sequentially installed on the counter along the conveying direction of the conveying flow line.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] When the utility model is used, the metal outer cap is installed into the metal outer cap jig by setting the dispensing assembly unit, and then the metal outer cap jig is transported to the position of the dispensing mechanism by the conveying streamline, and the laser altimeter measures the height of multiple points of the inner cavity of the metal outer cap, and the height of the dispensing head on the dispensing mechanism is adjusted accordingly, so as to ensure the uniformity and consistency of the dispensing; after the dispensing head discharges the glue, the glue is wiped on the wiping mechanism, so as to ensure the cleanliness of the dispensing head, and there will be no glue overflow or lack of glue during dispensing, so that no manual dispensing is required, and the dispensing amount and the uniformity of the dispensing can be accurately controlled, so as to ensure the uniformity of the dispensing head. Improve the dispensing yield rate; after dispensing, the dispensing uniformity is checked by the CCD inspection dispensing glue line mechanism, and defective products are automatically discharged; then they are transported to the position of the plastic bracket assembly mechanism through the conveying flow line, and the plastic bracket is loaded through the plastic bracket loading mechanism, and then the plastic bracket is grabbed and pressed into the inner cavity of the metal outer cap on the metal outer cap jig by the plastic bracket assembly mechanism to complete the preliminary assembly of the button. Through the setting of the dispensing assembly unit, the workload of manual assembly is reduced, the production efficiency is improved, and the mass production needs of the enterprise can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the dispensing assembly unit of the utility model.

[0020] The names of the components marked in the figure are as follows:

[0021] 1. Counter; 2. Conveying flow line; 3. Metal outer cap jig; 4. Glue dispensing assembly unit; 5. Glue dispensing mechanism; 6. Glue erasing mechanism; 7. Plastic bracket assembly mechanism; 8. CCD glue dispensing line inspection mechanism; 9. Plastic bracket feeding mechanism; 10. Metal outer cap size NG discharge assembly; 11. Metal outer cap size detection CCD camera; 12. CCD metal outer cap size detection mechanism; 13. Metal outer cap size NG discharge box; 14. Glue dispensing line inspection CCD camera; 15. Glue dispensing line NG discharge assembly; 16. X-axis moving assembly; 17. Second Y-axis moving assembly; 18. Plastic bracket assembly robot; 19. Plastic bracket size detection assembly; 20. Plastic bracket guide vibration plate; 21. Pressure holding unit; 22. Finished product size detection unit; 23. Finished product transfer unit. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] Example: Please refer to Figure 1-2 A button assembly production line includes a counter 1 and a conveying flow line 2 installed on the counter 1. A metal outer cap jig 3 is slidably connected to the conveying flow line 2. A metal outer cap feeding unit, a glue dispensing assembly unit 4, a pressure holding unit 21, a finished product size detection unit 22 and a finished product transfer unit 23 are sequentially installed on the counter 1 along the conveying direction of the conveying flow line 2. The conveying flow line 2 is used to sequentially convey the metal outer cap jig 3 to the metal outer cap feeding unit, the glue dispensing assembly unit 4, the pressure holding unit 21, the finished product size detection unit 22 and the finished product transfer unit 23 to perform corresponding operations. The feeding unit is used for feeding the metal outer cap jig 3 equipped with the metal outer cap and for reflowing the metal outer cap jig 3 without the metal outer cap; the glue dispensing assembly unit 4 is used for dispensing glue on the inner cavity of the metal outer cap, and the plastic bracket is fed and pressed into the inner cavity of the metal outer cap to complete the preliminary assembly of the key; the pressure holding unit 21 includes a robot, a pressure holding mechanism, and a pressure holding fixture. The robot grabs the metal outer cap jig 3 and places it in the pressure holding fixture. The pressure holding mechanism is taken out after a certain period of pressure holding, and the assembly of the key is completed to obtain a finished key; the finished product size detection unit 22 includes a side size CCD detection mechanism, a front size detection mechanism, and a pressure holding fixture. CCD detection mechanism, finished product size detection and defective product discharge mechanism, the side size CCD detection mechanism and the front size CCD detection mechanism complete the detection of the finished key size, and the defective products are discharged by the finished product size detection defective product discharge mechanism; the finished product transfer unit 23 includes a finished product CCD positioning device and a robotic arm, after the finished product CCD positioning device positions the metal outer cap jig 3, the robotic arm transfers the finished key to the finished key jig, and the metal outer cap jig 3 is transferred to the metal outer cap jig 3 reflow line, and refluxes to the loading unit; the key production line is completed in this way.

[0024] The glue dispensing assembly unit 4 includes a CCD mechanism for detecting the size of the metal outer cap 12, a glue dispensing mechanism 5, a glue erasing mechanism 6, a laser altimeter, a CCD mechanism for checking the glue dispensing line 8, a plastic bracket feeding mechanism 9 and a plastic bracket assembly mechanism 7. The CCD mechanism for detecting the size of the metal outer cap 12 includes a metal outer cap size detection CCD camera 11 and a metal outer cap size NG discharge assembly 10. The metal outer cap size detection CCD camera 11 is located at the front side of the glue dispensing mechanism 5 and above the conveying flow line 2; the metal outer cap size NG discharge assembly 10 includes a metal outer cap size NG discharge box 13 installed on the counter 1 and located on one side of the conveying flow line 2, a first Y-axis moving assembly installed on the counter 1, and a metal outer cap size NG adsorption head connected to the first Y-axis moving assembly. The metal outer cap on the metal outer cap jig 3 is detected by the metal outer cap size detection CCD camera 11, and the defective products are grabbed by the metal outer cap size NG suction head and placed in the metal outer cap size NG discharge box 13. During this period, the metal outer cap size NG suction head moves in the Y-axis direction according to the position of the defective products through the position of the first Y-axis moving component, thereby avoiding the defective metal outer caps from flowing into the assembly production line and improving the yield rate of finished products.

[0025] The laser altimeter is installed on the left side of the dispensing mechanism 5. The dispensing mechanism 5 includes a dispensing mounting bracket, an X-axis moving component 16 and a second Y-axis moving component 17. The X-axis moving component 16 is installed on the counter 1, and the second Y-axis moving component 17 is installed on the X-axis moving component 16. The dispensing mounting bracket is installed on the second Y-axis moving component 17; a cylinder is installed on the dispensing mounting bracket, and the output end of the cylinder is connected to the dispensing head mounting seat, and a dispensing head is installed on the dispensing head mounting seat; when the metal outer cap jig 3 passes through the conveying streamline 2 to the position of the dispensing mechanism 5, the laser altimeter measures the height of multiple points in the inner cavity of the metal outer cap, and adjusts the height of the dispensing head through the action of the cylinder accordingly, so as to ensure the uniformity and consistency of the dispensing. The wiping mechanism 6 is installed on one side of the conveying streamline 2 and is located below the dispensing mechanism 5. The wiping mechanism 6 includes a wiping mounting seat, and the wiping mounting seat is installed with a motor, and the output end of the motor is connected to a brush. When dispensing glue to the inner cavity of the metal outer cap on the metal outer cap jig 3, the motor starts and drives the brush to rotate, and then the dispensing head discharges glue, and the X-axis moving component 16 and the second Y-axis moving component 17 are used to adjust the X-direction and the Y-direction until the dispensing head performs the glue rubbing action on the brush. After the glue rubbing is completed, the X-axis moving component 16 and the second Y-axis moving component 17 are used to adjust the X-direction and the Y-direction according to the position of the metal outer cap on the metal outer cap jig 3, and then the glue dispensing action is performed; after the dispensing head discharges glue, it rubs glue on the glue rubbing mechanism 6, which ensures the cleanliness of the dispensing head, and there will be no glue overflow or lack of glue during dispensing, so that no manual dispensing is required, and the dispensing amount and uniformity of dispensing can be accurately controlled, thereby improving the dispensing yield rate.

[0026] The CCD inspection glue dispensing line mechanism 8 is installed on the right side of the glue dispensing mechanism 5. The CCD inspection glue dispensing line mechanism 8 includes a glue dispensing line detection CCD camera 14 and a glue dispensing line NG discharge component 15. The glue dispensing line NG discharge component 15 includes a glue dispensing line NG discharge box installed on the counter 1 and located on one side of the conveying flow line 2, a third Y-axis moving component installed on the counter 1, and a glue dispensing line NG suction head connected to the third Y-axis moving component. After glue dispensing, the glue dispensing uniformity is checked by the glue dispensing line detection CCD camera 14. Defective products are grabbed by the glue dispensing line NG suction head and placed in the glue dispensing line NG discharge box. During this period, the glue dispensing line NG suction head moves in the Y-axis direction according to the position of the defective products through the position of the third Y-axis moving component, thereby avoiding defective glue dispensing products from flowing into the assembly production line and improving the finished product yield.

[0027] The plastic bracket assembly mechanism 7 includes a plastic bracket assembly robot arm 18 and a plastic bracket size detection component 19. The plastic bracket assembly robot arm 18 is connected to a plastic bracket adsorption head; the plastic bracket size detection component 19 includes a plastic bracket size detection upper CCD camera and a plastic bracket positioning lower CCD camera installed on one side of the plastic bracket adsorption head. The plastic bracket feeding mechanism 9 includes a plastic bracket guide vibration plate 20. The output end of the plastic bracket guide vibration plate 20 is located on one side of the conveying flow line 2 and below the plastic bracket assembly robot arm 18. The plastic bracket is discharged through the plastic bracket guide vibration plate 20, the plastic bracket assembly robot arm 18 is actuated, the plastic bracket is grabbed by the plastic bracket adsorption head, the plastic bracket size detection upper CCD camera detects the size of the plastic bracket, and defective products are automatically discharged, thereby preventing defective plastic brackets from flowing into the assembly production line and improving the finished product yield. Then the plastic bracket is positioned by the CCD camera, and the plastic bracket is pressed into the inner cavity of the metal outer cap by the plastic bracket assembly robot 18; the preliminary assembly of the key is completed, and the dispensing assembly unit 4 is set to realize the automatic dispensing of the metal outer cap and the automatic assembly of the plastic bracket, thereby reducing the labor of manual assembly, improving production efficiency, and meeting the mass production needs of enterprises. This production line adopts CCD camera image positioning technology to accurately position the metal outer cap and the plastic bracket, improves the accuracy of dispensing and bracket assembly, and thus improves the yield rate of key assembly. It should be noted that the X-axis moving component 16 and the Y-axis moving component involved in the present invention realize their movement through slide rails or threaded rods.

[0028] The working principle of this embodiment is as follows: the conveying flow line 2 conveys the metal outer cap jig 3 to the metal outer cap feeding unit, the dispensing assembly unit 4, the pressure holding unit 21, the finished product size detection unit 23 and the finished product transfer unit 23 in sequence to perform corresponding operations;

[0029] The loading unit completes the loading of the metal outer cap jig 3 equipped with the metal outer cap;

[0030] In the dispensing assembly unit 4, the size of the metal outer cap is detected by the metal outer cap size detection CCD camera 11, and defective products are discharged; the laser altimeter measures the height of the inner cavity of the metal outer cap at multiple points, and adjusts the height of the dispensing head through the action of the cylinder accordingly, and the dispensing head performs glue discharge and glue wiping actions; after dispensing, the dispensing glue line detection CCD camera 14 is used to check the uniformity of dispensing, and defective products are discharged; the plastic bracket is discharged through the plastic bracket guide vibration plate 20, and the plastic bracket assembly robot arm 18 moves, and the plastic bracket is grabbed by the plastic bracket adsorption head, and the plastic bracket size detection upper CCD camera detects the size of the plastic bracket, and defective products are automatically discharged; then the plastic bracket positioning lower CCD camera positions the plastic bracket, and is pressed into the inner cavity of the metal outer cap through the plastic bracket assembly robot arm 18; the preliminary assembly of the key is completed;

[0031] In the pressure holding unit 21, the robot grabs the metal outer cap jig 3 and places it in the pressure holding jig. After the pressure holding mechanism holds the pressure for a certain period of time, it is taken out to complete the assembly of the key and obtain a finished key product.

[0032] The finished product size detection unit 22 detects the finished product size of the key by means of the side size CCD detection mechanism and the front size CCD detection mechanism, and defective products are discharged by the finished product size detection defective product discharge mechanism;

[0033] After the metal outer cap jig 3 is positioned by the finished product CCD positioning device in the finished product transfer unit 23, the robotic arm transfers the finished key product to the finished key jig, and the metal outer cap jig 3 is transferred to the metal outer cap jig 3 reflow line and refluxed to the loading unit; thus completing the key production line.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A button assembly production line, comprising a counter (1), characterized in that: It also includes a conveying flow line (2) installed on the counter (1), a metal outer cap jig (3) is slidably connected to the conveying flow line (2), a dispensing assembly unit (4) is installed on the counter (1), and the dispensing assembly unit (4) includes a dispensing mechanism (5), an wiping mechanism (6), a laser altimeter, a CCD dispensing glue line inspection mechanism (8), a plastic bracket feeding mechanism (9) and a plastic bracket assembly mechanism (7), the wiping mechanism (6) is installed on one side of the conveying flow line (2) and is located below the dispensing mechanism (5), the laser altimeter is installed on the left side of the dispensing mechanism (5), and the CCD dispensing glue line inspection mechanism (8) is installed on the right side of the dispensing mechanism (5); the dispensing mechanism (5) includes a dispensing head.

2. The button assembly production line according to claim 1, characterized in that: The dispensing assembly unit (4) further comprises a CCD metal outer cap size detection mechanism (12), wherein the CCD metal outer cap size detection mechanism (12) comprises a metal outer cap size detection CCD camera (11), and the metal outer cap size detection CCD camera (11) is located at the front side of the dispensing mechanism (5) and above the conveying flow line (2).

3. The key assembly production line according to claim 2, characterized in that: The CCD metal outer cap size detection mechanism (12) further comprises a metal outer cap size NG discharge assembly (10), wherein the metal outer cap size NG discharge assembly (10) comprises a metal outer cap size NG discharge box (13) mounted on the counter (1) and located on one side of the conveying flow line (2), a first Y-axis moving assembly mounted on the counter (1), and a metal outer cap size NG adsorption head connected to the first Y-axis moving assembly.

4. The button assembly production line according to claim 1, characterized in that: The CCD glue line inspection mechanism (8) comprises a glue line detection CCD camera (14) and a glue line NG discharge assembly (15), wherein the glue line NG discharge assembly (15) comprises a glue line NG discharge box installed on the counter (1) and located on one side of the conveying flow line (2), a third Y-axis moving assembly installed on the counter (1), and a glue line NG adsorption head connected to the third Y-axis moving assembly.

5. The button assembly production line according to claim 1, characterized in that: The glue dispensing mechanism (5) comprises a glue dispensing mounting bracket, a cylinder is mounted on the glue dispensing mounting bracket, an output end of the cylinder is connected to a glue dispensing head mounting seat, and the glue dispensing head is mounted on the glue dispensing head mounting seat.

6. The key assembly production line according to claim 5, characterized in that: The glue dispensing mechanism (5) further comprises an X-axis moving assembly (16) and a second Y-axis moving assembly (17); the X-axis moving assembly (16) is mounted on the counter (1); the second Y-axis moving assembly (17) is mounted on the X-axis moving assembly (16); and the glue dispensing mounting bracket is mounted on the second Y-axis moving assembly (17).

7. The button assembly production line according to claim 1, characterized in that: The eraser mechanism (6) comprises an eraser mounting seat, a motor is mounted on the eraser mounting seat, and a brush is connected to the output end of the motor.

8. The button assembly production line according to claim 1, characterized in that: The plastic bracket assembly mechanism (7) comprises a plastic bracket assembly mechanical arm (18) and a plastic bracket size detection component (19); the plastic bracket assembly mechanical arm (18) is connected to a plastic bracket adsorption head; the plastic bracket size detection component (19) comprises an upper CCD camera for plastic bracket size detection and a lower CCD camera for plastic bracket positioning, which are installed on one side of the plastic bracket adsorption head.

9. The key assembly production line according to claim 8, characterized in that: The plastic support feeding mechanism (9) comprises a plastic support guide vibration plate (20), the output end of the plastic support guide vibration plate (20) being located on one side of the conveying flow line (2) and below the plastic support assembly mechanical arm (18).

10. The button assembly production line according to any one of claims 1 to 9, characterized in that: A loading unit, the glue dispensing assembly unit (4), a pressure holding unit (21), a finished product size detection unit (22) and a finished product transfer unit (23) are sequentially installed on the counter (1) along the conveying direction of the conveying flow line (2).

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