Punch removing device for LED (light-emitting diode) bad particles

Abstract

The utility model discloses a puncher pin removing device for LED bad particles, which comprises a two-dimensional motion platform and a puncher pin module, the two-dimensional motion platform comprises an X-axis module and a Y-axis module, the X-axis module is used for driving the Y-axis module to linearly move along the X direction, and the Y-axis module is used for driving the puncher pin module to linearly move along the Y direction; the punch module comprises a punch servo motor, a motor mounting seat, a cam shaft, a punch linear guide rail, a connecting plate, a deep groove ball bearing, a cam follower, a mounting plate and a punch; a motor mounting base is arranged on one side of the driving end of the Y-axis module, a driving shaft of the punch servo motor penetrates through the motor mounting base and is connected with a cam shaft, an eccentric protrusion on the other side of the cam shaft is rotationally connected with a connecting plate through a deep groove ball bearing, and the end of the connecting plate is connected with a mounting plate through a cam follower. And a punch is mounted at the end part of the mounting plate. According to the utility model, the X-axis module and the Y-axis module are used for positioning a point position needing to be removed; the NG particle removing device has the advantages of being compact in structure, small in size and high in efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED production and manufacturing equipment, and in particular relates to a punch removal device for LED defective particles. Background Art

[0002] LED is a light-emitting diode, which is widely used in many production and life fields such as large screens in stations, shopping malls, lighting, traffic lights, advertising displays, urban lighting projects, etc. It has a series of advantages such as light weight, small size, simple use, convenient operation, flexible matching, low driving voltage, high luminous efficiency, short response time, reliable structure, stable performance, and low cost. With the increase in the scope of application and usage, users have higher requirements for the quality of LEDs. Therefore, in the production process of LED lamp beads, a series of inspections need to be carried out on the LED lamp beads, and defective lamp beads need to be efficiently eliminated to ensure that the subsequent process is processing and manufacturing good products to achieve the purpose of improving quality and efficiency. Among the existing equipment for removing defective lamp beads, there are the following solutions:

[0003] ① The punch part uses a cylinder as the driving force. However, when using a cylinder as the power solution, this type of work scenario requires the use of a precise high-speed cylinder and a matching high-speed solenoid valve to meet the drive control, which is expensive and has high subsequent maintenance costs. Secondly, the noise when the cylinder works at high speed is very loud, and the operator's physical and mental health will be affected if they work in this environment for a long time.

[0004] ② The rejection efficiency can be improved by arranging multiple groups of cylinders in parallel. However, this is not applicable in this scenario. The particles of the product are small, the row and column spacing is small, and the main body size of the cylinder is large. It is impossible to combine them to meet the layout requirements of such tiny particles. In addition, the arrangement of multiple groups of cylinders increases the difficulty and cost of maintenance.

[0005] ③ The double punch operation is controlled by fixing the device position and distributing it in half in the operation area. However, this method is too inefficient for products with randomly distributed NG particles. For example, if half of the product has many NGs and the other half has almost no NGs, one of the punches will need to work for a long time while the other will work very quickly. This does not reasonably utilize the structural characteristics of the double punch to achieve the purpose of increasing efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a punch removal device for LED defective particles, which is positioned to the point to be removed through the X-axis module and the Y-axis module; the punch is driven by the punch servo motor to drive the cam mechanism to drive the punch to remove NG particles, and has the advantages of compact structure, small size and high efficiency.

[0007] The utility model is mainly realized through the following technical solutions:

[0008] A punch removal device for LED defective particles comprises a two-dimensional motion platform and a punch module, wherein the two-dimensional motion platform comprises an X-axis module and a Y-axis module, wherein the X-axis module is used to drive the Y-axis module to move linearly along the X direction, and the Y-axis module is used to drive the punch module to move linearly along the Y direction; the punch module comprises a punch servo motor, a motor mounting seat, a camshaft, a punch linear guide, a connecting plate, a deep groove ball bearing, a cam follower, a mounting plate and a punch; a motor mounting seat is arranged on one side of the driving end of the Y-axis module, a driving shaft of the punch servo motor passes through the motor mounting seat and is connected to the camshaft, an eccentric protrusion on the other side of the camshaft is rotatably connected to the connecting plate through a deep groove ball bearing, and an end of the connecting plate is connected to the mounting plate through a cam follower, and a punch is installed on the end of the mounting plate; a punch linear guide is arranged on the side of the motor mounting seat close to the mounting plate, and one side of the mounting plate is slidably connected to the punch linear guide.

[0009] In order to better realize the utility model, further, the two-dimensional motion platform also includes a frame, a base and an X-axis guiding mechanism, an X-axis module is arranged on one side of the frame along the X direction, the base is arranged on the X-axis module, the X-axis module is used to drive the base to move linearly along the X direction, an X-axis guiding mechanism is arranged between the base and the frame, and the base is slidably connected to the X-axis guiding mechanism; the base is provided with a Y-axis module along the Y direction.

[0010] In order to better realize the utility model, further, the X-axis module includes an X-axis servo motor and an X-axis ball screw, an X-axis ball screw is installed on one side of the frame for rotation along the X direction, and one end of the X-axis ball screw is connected to the X-axis servo motor, and the X-axis ball screw is connected to the base through a screw nut.

[0011] In order to better realize the utility model, further, the X-axis guiding mechanism includes a first X-axis linear guide and a second X-axis linear guide, the top of the frame is provided with the first X-axis linear guide along the X direction, and the other side of the frame is provided with the second X-axis linear guide along the X direction; the bottom of the base is slidably connected to the first X-axis linear guide, and a support is correspondingly provided on one side of the base, and the support is slidably connected to the second X-axis linear guide.

[0012] In order to better realize the utility model, further, the two-dimensional motion platform also includes a driving seat and a Y-axis guiding mechanism, a motor mounting seat is installed on one side of the driving seat; a driving seat is installed on the Y-axis module, and the Y-axis module is used to drive the driving seat to move linearly along the Y direction; a Y-axis guiding mechanism is arranged between the base and the driving seat along the Y direction, and the driving seat is slidably connected to the Y-axis guiding mechanism.

[0013] In order to better realize the utility model, further, the Y-axis module includes a Y-axis servo motor and a Y-axis ball screw, a Y-axis ball screw is arranged on the top of the base for rotation along the Y direction, and one end of the Y-axis ball screw is connected to the Y-axis servo motor, and the Y-axis ball screw is connected to the driving seat through a screw nut.

[0014] In order to better realize the utility model, further, the Y-axis guiding mechanism includes a Y-axis linear guide rail, a Y-axis linear guide rail is arranged on one side of the base along the Y direction, and the driving seat is slidably connected to the Y-axis linear guide rail.

[0015] In order to better realize the utility model, further, punch removal devices are respectively arranged on both sides of the working area.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) The utility model can flexibly adjust the two-dimensional position of the punch module through the two-dimensional motion platform, and locate the point to be removed through the X-axis module and the Y-axis module; the punch servo motor drives the cam connecting rod mechanism to move back and forth, and the punch servo motor rotates one circle to complete one NG particle removal, thereby achieving the purpose of efficiently and accurately removing NG materials. The utility model has the characteristics of compact structure, small size and high efficiency; it works reliably, and solves the problem that random defective particles in LED sheet materials cannot be accurately removed in the existing production and manufacturing, greatly shortens the operation time of the original manual operation of this process, effectively improves production efficiency, improves product yield, ensures product quality, and has good practicality.

[0018] (2) The rejection time of a single NG particle that can be achieved by the utility model is 0.05s, which is much lower than the working time of the previous cylinder drive. The utility model can work independently through the dual punches without interfering with each other, and perform the rejection operation at the same time, thereby improving production efficiency and ensuring product quality. Secondly, the utility model can be compatible with products of different sizes by replacing the punches, and can also be used in work scenarios such as efficient assembly, removal, dispensing, stamping, riveting, etc. of tiny particles on sheet materials, with a wide range of applications; it improves the utilization rate of the utility model, reduces production costs, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the punch removal device for LED defective particles of the utility model;

[0020] Figure 2 It is a working schematic diagram of two punch rejection devices;

[0021] Figure 3 It is a schematic diagram of the connection structure between the frame and the X-axis module;

[0022] Figure 4 It is a schematic diagram of the connection structure between the frame and the first X-axis linear guide rail and the second X-axis linear guide rail;

[0023] Figure 5 It is a schematic diagram of the connection structure between the base and the Y-axis module;

[0024] Figure 6 It is a schematic diagram of the connection structure between the drive seat and the punch die set;

[0025] Figure 7 This is an exploded view of the punch die set;

[0026] Figure 8 This is the PLC control flow chart in Example 2.

[0027] In the figure: 1-X-axis module, 2-Y-axis module, 3-punch module, 4-X-axis servo motor, 5-X-axis ball screw, 6-first X-axis linear guide, 7-second X-axis linear guide, 8-Y-axis servo motor, 9-Y-axis ball screw, 10-Y-axis linear guide, 11-punch servo motor, 12-motor mounting seat, 13-blocking plate, 14-sensing plate, 15-groove photoelectric, 16-camshaft, 17-punch linear guide, 18-connecting plate, 19-deep groove ball bearing, 20-bearing blocking plate, 21-cam follower, 22-mounting plate, 23-punch. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] A punch removal device for LED defective particles, such as Figure 1 , Figure 6 and Figure 7 As shown, it includes a two-dimensional motion platform and a punch module 3, the two-dimensional motion platform includes an X-axis module 1 and a Y-axis module 2, the X-axis module 1 is used to drive the Y-axis module 2 to move linearly along the X direction, and the Y-axis module 2 is used to drive the punch module 3 to move linearly along the Y direction; the punch module 3 includes a punch servo motor 11, a motor mounting seat, a cam shaft 16, a punch linear guide 17, a connecting plate 18, a deep groove ball bearing, a cam follower 21, a mounting plate 22 and a punch 23; a driving end of the Y-axis module 2 A motor mounting seat is provided on one side, the driving shaft of the punch servo motor 11 passes through the motor mounting seat and is connected to the camshaft 16, the eccentric protrusion on the other side of the camshaft 16 is rotatably connected to the connecting plate 18 through a deep groove ball bearing, and the end of the connecting plate 18 is connected to the mounting plate 22 through a cam follower 21, and a punch 23 is installed on the end of the mounting plate 22; a punch linear guide 17 is provided on the side of the motor mounting seat close to the mounting plate 22, and one side of the mounting plate 22 is slidably connected to the punch linear guide 17.

[0030] Preferably, if Figure 1 As shown, the two-dimensional motion platform also includes a frame, a base and an X-axis guide mechanism. An X-axis module 1 is arranged on one side of the frame along the X direction, and the base is arranged on the X-axis module 1. The X-axis module 1 is used to drive the base to move linearly along the X direction; the base is provided with a Y-axis module 2 along the Y direction, and an X-axis guide mechanism is arranged between the base and the frame, and the base is slidably connected to the X-axis guide mechanism. A drive seat is arranged on the Y-axis module 2, and the Y-axis module 2 is used to drive the drive seat to move linearly along the Y direction. A Y-axis guide mechanism is arranged between the base and the drive seat, and the drive seat is slidably connected to the Y-axis guide mechanism. A punch servo motor 11 is arranged on the top of the drive seat, and a motor mounting seat is correspondingly installed on one side. Further, the Y-axis guide mechanism includes a Y-axis linear guide rail 10, and a Y-axis linear guide rail 10 is arranged on one side of the base along the Y direction, and the drive seat is slidably connected to the Y-axis linear guide rail 10.

[0031] Preferably, if Figure 3 As shown, the X-axis module 1 includes an X-axis servo motor 4 and an X-axis ball screw 5. The X-axis ball screw 5 is installed on one side of the frame for rotation along the X direction, and one end of the X-axis ball screw 5 is connected to the X-axis servo motor 4. The X-axis ball screw 5 is connected to the base through a screw nut. Preferably, as Figure 5 As shown, the Y-axis module 2 includes a Y-axis servo motor 8 and a Y-axis ball screw 9. The top of the base is provided with a Y-axis ball screw 9 for rotation along the Y direction, and one end of the Y-axis ball screw 9 is connected to the Y-axis servo motor 8, and the Y-axis ball screw 9 is connected to the driving seat through a screw nut.

[0032] Preferably, if Figure 4 As shown, the X-axis guiding mechanism includes a first X-axis linear guide 6 and a second X-axis linear guide 7. The first X-axis linear guide 6 is arranged on the top of the frame along the X direction, and the second X-axis linear guide 7 is arranged on the other side of the frame along the X direction; the bottom of the base is slidably connected to the first X-axis linear guide 6, and a support is correspondingly arranged on one side of the base, and the support is slidably connected to the second X-axis linear guide 7.

[0033] During use, the utility model can flexibly adjust the two-dimensional position of the punch module 3 through the two-dimensional motion platform, and locate the point to be removed through the X-axis module 1 and the Y-axis module 2; the punch servo motor 11 drives the cam connecting rod mechanism to move back and forth, so that the punch servo motor 11 rotates one circle to complete one NG particle removal, thereby achieving the purpose of efficiently and accurately removing NG materials. The utility model has the characteristics of compact structure, small size and high efficiency; it works reliably, solves the problem that random defective particles in LED sheet materials cannot be accurately removed in the existing production and manufacturing, greatly shortens the operation time of the original manual operation of this process, effectively improves production efficiency, improves product yield, ensures product quality, and has good practicality.

[0034] Embodiment 2:

[0035] A punch removal device for LED defective particles, such as Figure 2 As shown, punch rejection devices can be respectively arranged on both sides of the production area, and the structure is basically a mirror image structure, forming a double punch rejection system. The punch rejection device comprises a frame, a base and a drive seat, and an X-axis module 1 is arranged on one side of the frame along the X direction, and a base is installed on the X-axis module 1, and the X-axis module 1 is used to drive the base to move linearly along the X direction; a Y-axis module 2 is arranged on the top of the base along the Y direction, and a drive seat is installed on the Y-axis module 2, and the Y-axis module 2 is used to drive the drive seat to move linearly along the Y direction; a punch module 3 is installed on one side of the drive seat.

[0036] Furthermore, the Y-axis guiding mechanism includes a Y-axis linear guide rail 10 , a Y-axis linear guide rail 10 is provided on one side of the base along the Y direction, and the driving seat is slidably connected to the Y-axis linear guide rail 10 .

[0037] Preferably, if Figure 3 As shown, the X-axis module 1 includes an X-axis servo motor 4 and an X-axis ball screw 5. The X-axis ball screw 5 is installed on one side of the frame for rotation along the X direction, and one end of the X-axis ball screw 5 is connected to the X-axis servo motor 4. The X-axis ball screw 5 is connected to the base through a screw nut. Preferably, as Figure 5 As shown, the Y-axis module 2 includes a Y-axis servo motor 8 and a Y-axis ball screw 9. The top of the base is provided with a Y-axis ball screw 9 for rotation along the Y direction, and one end of the Y-axis ball screw 9 is connected to the Y-axis servo motor 8, and the Y-axis ball screw 9 is connected to the driving seat through a screw nut.

[0038] Preferably, if Figure 4As shown, the X-axis guiding mechanism includes a first X-axis linear guide 6 and a second X-axis linear guide 7. The first X-axis linear guide 6 is arranged on the top of the frame along the X direction, and the second X-axis linear guide 7 is arranged on the other side of the frame along the X direction; the bottom of the base is slidably connected to the first X-axis linear guide 6, and a support is correspondingly arranged on one side of the base, and the support is slidably connected to the second X-axis linear guide 7.

[0039] like Figure 1 , Figure 6 and Figure 7 As shown, the punch module 3 includes a punch servo motor 11, a motor mounting seat, a baffle 13, an induction plate 14, a slotted photoelectric 15, a camshaft 16, a punch linear guide 17, a connecting plate 18, a deep groove ball bearing, a bearing baffle 20, a cam follower 21, a mounting plate 22, and a punch 23. The punch servo motor 11 is arranged on the driving seat, a motor mounting seat is arranged on one side of the punch servo motor 11, a driving shaft of the punch servo motor 11 passes through the motor mounting seat and is connected to the camshaft 16, an eccentric protrusion on the other side of the camshaft 16 is rotatably connected to the connecting plate 18 through a deep groove ball bearing, and the end of the connecting plate 18 is connected to the mounting plate 22 through a cam follower 21, and a punch is installed at the end of the mounting plate 22; a punch linear guide 17 is arranged on the side of the motor mounting seat close to the mounting plate 22, and one side of the mounting plate 22 is slidably connected to the punch linear guide 17. Furthermore, a slot-type photoelectric sensor 15 is provided at the top of the motor mounting seat corresponding to the camshaft 16, and the slot-type photoelectric sensor 15 is located above the camshaft 16, and a sensing sheet 14 is provided at the slot of the slot-type photoelectric sensor 15 corresponding to the camshaft 16. Blocking sheets 13 are provided at both ends of the punch linear guide 17.

[0040] When the punch module 3 is working, the punch servo motor 11 drives the camshaft 16 to rotate, and the eccentric protrusion on one side of the camshaft 16 is connected to the deep groove ball bearing. The deep groove ball bearing is centered on the center of the camshaft 16 and performs circular motion with the eccentric distance of the camshaft 16 as the radius. The deep groove ball bearing is installed in the connecting plate 18, and the connecting plate 18 is installed with a cam follower 21, which drives the cam follower 21 to reciprocate up and down, and the reciprocating stroke is twice the eccentric distance of the camshaft 16. The rotating part of the cam follower 21 is fitted on the mounting plate 22, driving the mounting plate 22 to reciprocate up and down. A punch 23 is installed on the mounting plate 22, driving the punch 23 to reciprocate up and down. The punch servo motor 11 rotates one circle, and the punch 23 moves up and down once, and the stroke is twice the eccentric distance of the camshaft 16. The front end of the punch 23 squeezes the NG particles, so that the particles are threshed from the substrate, completing one NG removal, and this cycle is repeated to complete the removal of all NG particles on the product.

[0041] The incoming NG (No Good, defective products, hereinafter referred to as NG) particles (1.25mm*1.25mm) of the product to be rejected (size 140mm*72mm) are located in random rows and columns (36 rows*44 columns), and the PLC (Programmable Logic Controller, hereinafter referred to as PLC) fully and reasonably plans the respective operating areas of the double punches. The X / Y servo motor drives the X / Y module to locate the point to be rejected, and the punch servo motor 11 drives the punch cam connecting rod mechanism to reciprocate. The servo motor rotates one circle to complete the NG particle rejection, thereby achieving the purpose of efficiently and accurately rejecting NG materials. It has the characteristics of compact structure, small size and high efficiency.

[0042] like Figure 8 As shown, the elimination is performed based on the existing PLC control, which specifically includes the following steps:

[0043] The host computer sends all NG data results of the material to the PLC through TCP / IP communication, and the PLC receives and stores the data.

[0044] The PLC uses FOR loop and ArySearch instruction to calculate the number of NGs in each line of the received data; the PLC uses FOR loop to calculate the number of NGs in each line and calculates which line has half the NG number.

[0045] The PLC uses FOR loop and ArySearch instruction to calculate the number of NGs in each column of the received data; the PLC uses FOR loop to calculate the number of NGs in each column and calculates which row has half the NG number.

[0046] The PLC recalculates the calculated row and column arrangement, calculates the optimal row and column, and selects the optimal item; the PLC sends the mechanical coordinates corresponding to each NG particle to the corresponding punch rejection device; after the punch rejection device receives the point position, the PLC controls and drives the punch rejection device to reject the NG product.

[0047] In terms of PLC control, the host computer sends material NG data, and the PLC receives the data to calculate the number of NG in rows and columns, and then divides the rows and columns into half areas at the same time. Then the optimal rows and columns are judged for data sending, and the location of NG materials is calculated and sent to the NG rejection execution unit for rejection. It fully utilizes the advantages of double punches, reduces the rejection time of a single NG, and thus improves the overall CT (cycle time) of the equipment, which has good practicality.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A punch removal device for LED defective particles, characterized in that: The invention comprises a two-dimensional motion platform and a punch module (3), wherein the two-dimensional motion platform comprises an X-axis module (1) and a Y-axis module (2), wherein the X-axis module (1) is used to drive the Y-axis module (2) to move linearly along the X direction, and the Y-axis module (2) is used to drive the punch module (3) to move linearly along the Y direction; the punch module (3) comprises a punch servo motor (11), a motor mounting seat, a cam shaft (16), a punch linear guide rail (17), a connecting plate (18), a deep groove ball bearing, a cam follower (21), a mounting plate (22) and a punch; one side of the driving end of the Y-axis module (2) A motor mounting seat is provided, and the driving shaft of the punch servo motor (11) passes through the motor mounting seat and is connected to the camshaft (16); the eccentric protrusion on the other side of the camshaft (16) is rotatably connected to the connecting plate (18) through a deep groove ball bearing, and the end of the connecting plate (18) is connected to the mounting plate (22) through a cam follower (21), and the end of the mounting plate (22) is installed with a punch (23); a punch linear guide (17) is provided on one side of the motor mounting seat close to the mounting plate (22), and one side of the mounting plate (22) is slidably connected to the punch linear guide (17).

2. The punch removal device for LED defective particles according to claim 1, characterized in that: The two-dimensional motion platform further comprises a frame, a base and an X-axis guide mechanism, an X-axis module (1) is arranged on one side of the frame along the X direction, the base is arranged on the X-axis module (1), the X-axis module (1) is used to drive the base to move linearly along the X direction, an X-axis guide mechanism is arranged between the base and the frame, and the base is slidably connected to the X-axis guide mechanism; and a Y-axis module (2) is arranged on the base along the Y direction.

3. The punch removal device for LED defective particles according to claim 2, characterized in that: The X-axis module (1) comprises an X-axis servo motor (4) and an X-axis ball screw (5); the X-axis ball screw (5) is rotatably mounted on one side of the frame along the X direction, and one end of the X-axis ball screw (5) is connected to the X-axis servo motor (4); the X-axis ball screw (5) is connected to the base via a screw nut.

4. The punch removal device for LED defective particles according to claim 2, characterized in that: The X-axis guide mechanism comprises a first X-axis linear guide rail (6) and a second X-axis linear guide rail (7); the first X-axis linear guide rail (6) is arranged on the top of the frame along the X direction, and the second X-axis linear guide rail (7) is arranged on the other side of the frame along the X direction; the bottom of the base is slidably connected to the first X-axis linear guide rail (6), and a support is correspondingly arranged on one side of the base, and the support is slidably connected to the second X-axis linear guide rail (7).

5. The punch removal device for LED defective particles according to claim 2, characterized in that: The two-dimensional motion platform also includes a drive seat and a Y-axis guide mechanism, a motor mounting seat is installed on one side of the drive seat; the drive seat is installed on the Y-axis module (2), and the Y-axis module (2) is used to drive the drive seat to move linearly along the Y direction; a Y-axis guide mechanism is arranged between the base and the drive seat along the Y direction, and the drive seat is slidably connected to the Y-axis guide mechanism.

6. The punch removal device for LED defective particles according to claim 5, characterized in that: The Y-axis module (2) comprises a Y-axis servo motor (8) and a Y-axis ball screw (9); the top of the base is provided with a Y-axis ball screw (9) for rotation along the Y direction, and one end of the Y-axis ball screw (9) is connected to the Y-axis servo motor (8); the Y-axis ball screw (9) is connected to the drive seat via a screw nut.

7. The punch removal device for LED defective particles according to claim 5, characterized in that: The Y-axis guiding mechanism comprises a Y-axis linear guide rail (10), one side of the base is provided with a Y-axis linear guide rail (10) along the Y direction, and the driving seat is slidably connected to the Y-axis linear guide rail (10).

8. A punch removal device for LED defective particles according to any one of claims 1 to 7, characterized in that: Punch removal devices are provided on both sides of the working area.

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