Tray lifting mechanism of circuit board tray arranging machine

Abstract

The utility model belongs to the technical field of tray feeding and discharging equipment, and particularly relates to a tray lifting mechanism of a circuit board tray arranging machine, which comprises a tray discharging bracket and a tray collecting bracket which are arranged side by side, the rear side of the tray discharging bracket is in driving connection with a first lifting assembly, and the rear side of the tray collecting bracket is in driving connection with a second lifting assembly. An automatic tray taking and placing arm is arranged between the tray discharging bracket and the tray collecting bracket, and telescopic clamping pieces are symmetrically arranged on the left side and the right side of the tray collecting bracket. The tray lifting mechanism provided by the utility model can automatically lift off the tray and automatically descend the tray filled with the circuit board, so that the tray lifting mechanism can be matched with automatic tray placing equipment of the circuit board to automatically stack the trays, manual operation is effectively liberated, the operation efficiency of working procedures can be improved, and the tray lifting mechanism has remarkable practical significance.

Description

Technical Field

[0001] The utility model relates to the technical field of tray loading and unloading equipment, in particular to a tray lifting mechanism of a circuit board tray placing machine. Background Art

[0002] PCB (Printed Circuit Board) is the carrier of electrical connection of electronic components. In industry, in order to realize mass production of PCB, multiple PCBs are generally made on one board, and then each PCB is milled and separated by PCB splitter. After cutting into individual PCB products, the individual PCB boards need to be placed in a tray in an orderly manner to be concentrated for the next step of processing.

[0003] Blister trays are also called plastic inner trays. They use the blister process to make plastic hard sheets into plastic with specific grooves. The products are placed in the grooves to protect, beautify and transport the products.

[0004] Generally, after the tray is filled with PCBs, the trays filled with PCBs can be stacked up and down for easy transportation and storage. Therefore, there are often a stack of empty trays and a stack of trays filled with PCBs in the production workshop. These trays need to be manually moved and stacked by workers, which is time-consuming and labor-intensive.

[0005] With the development of science and technology, there are now robot devices on the market that can automatically grab the circuit boards after the depaneling is completed and put them into the tray. For example, in the patent document with patent number CN202322285016.9 and the name "Circuit Board Picking and Unloading Equipment", a circuit board picking and unloading equipment is disclosed. The circuit board picking and unloading equipment includes an equipment base, a mechanical arm mechanism arranged on the equipment base, and a material picking and placing mechanism arranged on the mechanical arm mechanism; the material picking and placing mechanism includes a material lifting and driving structure arranged on the mechanical arm mechanism, a material adsorption structure arranged on the material lifting and driving structure, and a material vibration structure connected to the material adsorption structure.

[0006] In view of this, in order to adapt to the automated upgrade of the board separator and circuit board tray, to avoid the embarrassing situation that workers still need to manually move the stacked pallets after the pallets are full, and to enable the production rhythm of each device to be coordinated, it is necessary to carry out corresponding automation design for the loading and unloading mechanism of the pallet. Utility Model Content

[0007] In order to solve the problem that there is a lack of automatic loading and unloading equipment for stacking circuit board trays that can cooperate with automatic circuit board placement equipment on the market, after the automatic circuit board placement equipment fills the tray with circuit boards, the stacking tray needs to be manually moved, and the start and stop of the equipment is difficult to automatically link. The workers often spend a long time moving the tray, causing the placement process to stop, affecting production efficiency. A tray lifting mechanism for a circuit board placement machine is provided.

[0008] The tray lifting mechanism of the circuit board tray placing machine includes a tray discharging tray and a tray closing tray arranged side by side, the rear side of the tray discharging tray is driven and connected to a first lifting component, the rear side of the tray closing tray is driven and connected to a second lifting component, an automatic tray picking and placing arm is arranged between the tray discharging tray and the tray closing tray, and telescopic clips are symmetrically arranged on the left and right sides of the tray closing tray.

[0009] Furthermore, the first lifting assembly and the second lifting assembly both include a vertically arranged screw slide, the screw slide includes a vertical screw and a lifting slide that are threaded in series, and the vertical screw drive is connected to a servo motor.

[0010] Furthermore, groove-type photoelectric sensors are provided at both upper and lower ends of the screw slide, and trigger baffles are provided on the side of the lifting slide corresponding to the groove-type photoelectric sensors, and the groove-type photoelectric sensors are electrically connected to the servo motor.

[0011] Furthermore, the output end of the servo motor is connected to a planetary reducer, and the planetary reducer drives the vertical lead screw.

[0012] Furthermore, the telescopic clip is slidably sleeved on the horizontal slide rail, and the telescopic clip is fixedly connected to the front end of the telescopic push rod.

[0013] Furthermore, the telescopic clip, the horizontal slide rail and the telescopic push rod are correspondingly arranged at the top of the travel of the second lifting assembly.

[0014] Furthermore, a tray sensor is provided above the closing tray at the top of the travel of the second lifting assembly, and the tray sensor is electrically connected to the second lifting assembly and the telescopic push rod.

[0015] Furthermore, a proximity sensor is provided above the top of the travel of the first lifting assembly corresponding to the disk output bracket, and the proximity sensor is electrically connected to the first lifting assembly.

[0016] Furthermore, a material-free sensor is arranged on the top of the tray discharging tray, and a material-full sensor is arranged on the side of the bottom of the travel of the second lifting assembly corresponding to the tray closing tray, and the material-free sensor and the material-full sensor are respectively electrically connected to a prompt module.

[0017] The advantages of the utility model are:

[0018] 1. It can cooperate with automated equipment to lift and stack pallets, so as to facilitate linkage with other equipment to improve work efficiency.

[0019] 2. The structure is relatively simple, which can effectively save manual operation and reduce manpower input costs.

[0020] 3. Equipped with a reminder function to ensure that workers add empty pallets to the stack and transport out fully loaded pallets in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is a front view structural diagram of the tray lifting mechanism of the circuit board tray placing machine;

[0023] Figure 2 This is an axial side view of the lower part of the tray lifting mechanism of the circuit board tray placing machine;

[0024] Figure 3 Axle-side view from the rear of the tray lifting mechanism of the circuit board tray placing machine.

[0025] Figure ID:

[0026] 1. Disk discharging bracket; 2. Disk closing bracket; 3. First lifting assembly; 301. Vertical screw rod; 302. Lifting slide; 303. Servo motor; 4. Second lifting assembly; 5. Automatic tray pick-up and drop-off arm; 6. Telescopic clamp; 601. Horizontal slide rail; 602. Telescopic push rod; 7. Groove-type photoelectric sensor; 701. Trigger baffle; 8. Planetary reducer; 9. Tray sensor; 10. Proximity sensor; 11. No material sensor; 12. Full material sensor. DETAILED DESCRIPTION

[0027] In order to solve the problem that there is a lack of automatic loading and unloading equipment for stacking circuit board trays that can cooperate with automatic circuit board placement equipment on the market, after the automatic circuit board placement equipment fills the tray with circuit boards, the stacking tray needs to be manually moved, and the start and stop of the equipment is difficult to automatically link. The workers often spend a long time moving the tray, causing the placement process to stop, affecting production efficiency. A tray lifting mechanism for a circuit board placement machine is provided.

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that the terms such as "within", "in" and "a" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of the present utility model, and should be stated in advance.

[0030] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0031] like Figures 1 to 3 As shown, this embodiment provides a tray lifting mechanism for a circuit board tray placing machine, including a tray output tray 1 and a tray closing tray 2 arranged side by side, the rear side of the tray output tray 1 is driven and connected to a first lifting component 3, the rear side of the tray closing tray 2 is driven and connected to a second lifting component 4, an automatic tray picking and placing arm 5 is arranged between the tray output tray 1 and the tray closing tray 2, and telescopic clips 6 are also symmetrically arranged on the left and right sides of the tray closing tray 2.

[0032] Among them, the tray automatic pick-up and placement arm 5 can adopt the three-axis robot arm commonly used in the market, and a negative pressure suction cup is installed at the front end for grabbing the tray. Before starting the equipment, a stack of empty trays is first placed on the tray output bracket 1 at the lowest position, and then the tray automatic pick-up and placement arm 5 grabs the tray with circuit boards placed on the top by the automatic tray placement mechanism (not marked in the figure) to the tray closing bracket 2, and the telescopic clamp 6 clamps the tray full of circuit boards on the left and right and then releases it to ensure that its position is aligned, and then the first lifting component 3 rises the distance of a tray, and the second lifting component 4 descends the distance of a tray, until all the trays are stacked on the tray closing bracket 2 and then transported out, and the empty trays are stacked again on the tray output bracket 1.

[0033] The first lifting assembly 3 and the second lifting assembly 4 both include a vertically arranged screw slide, and the screw slide includes a vertical screw 301 and a lifting slide 302 connected in series by threads, and the vertical screw 301 is driven and connected to a servo motor 303. Since the weight of the stacked pallets is large, the load of the lifting assembly is high, and it is necessary to accurately lift and lower the thickness of a pallet each time, so the screw slide is set as the first lifting assembly 3 and the second lifting assembly 4.

[0034] The upper and lower ends of the screw slide are provided with groove-type photoelectric sensors 7, and the side of the lifting slide 302 is provided with a trigger baffle 701 corresponding to the groove-type photoelectric sensor 7, and the groove-type photoelectric sensor 7 is electrically connected to the servo motor 303. The groove-type photoelectric sensor 7 cooperates with the trigger baffle 701 to prevent the first lifting component 3 and the second lifting component 4 from over-lifting, improve the stability of the equipment, and avoid equipment failure and damage.

[0035] The output end of the servo motor 303 is connected to a planetary reducer 8, and the planetary reducer 8 drives the vertical screw rod 301. The planetary reducer 8 can improve the load capacity of the servo motor 303 to prevent the servo motor 303 from being overloaded and burned due to excessive weight of the stacked pallets.

[0036] The telescopic clip 6 is slidably sleeved on the horizontal slide rail 601, and the telescopic clip 6 is fixedly connected to the front end of the telescopic push rod 602. The telescopic clip 6 is driven by the telescopic push rod 602 to ensure smooth telescopic movement of the telescopic clip 6 and fast directional positioning of the tray on the closing bracket 2.

[0037] The telescopic clip 6, the horizontal slide rail 601 and the telescopic push rod 602 are correspondingly arranged at the top of the travel of the second lifting assembly 4. The telescopic clip 6 is installed at a fixed height and does not rise and fall with the closing bracket 2, which can reduce the load of the second lifting assembly 4 and reduce the operating energy consumption of the second lifting assembly 4.

[0038] A tray sensor 9 is provided above the closing tray 2 at the top of the travel of the second lifting assembly 4, and the tray sensor 9 is electrically connected to the second lifting assembly 4 and the telescopic push rod 602. The tray sensor 9 can be a commonly used photoelectric sensor on the market, which is used to trigger the device to automatically perform the positioning process of the telescopic clip 6 and the second lifting assembly 4 to drive the closing tray 2 to descend a distance of a tray thickness when the tray is placed on the top of the tray stack of the closing tray 2.

[0039] A proximity sensor 10 is provided above the top of the travel of the first lifting assembly 3 corresponding to the tray output tray 1, and the proximity sensor 10 is electrically connected to the first lifting assembly 3. The proximity sensor 10 can also be a commonly used photoelectric sensor on the market, which is used to trigger the first lifting assembly 3 to automatically rise a distance of the thickness of a tray after sensing that the top tray of the tray output tray 1 has been taken away.

[0040] The top of the tray discharging bracket 1 is provided with an empty material sensor 11, and the side of the bottom of the travel of the second lifting assembly 4 corresponding to the tray closing bracket 2 is provided with a full material sensor 12, and the empty material sensor 11 and the full material sensor 12 are respectively electrically connected to a prompt module (not shown in the figure). The prompt module can use the commonly used warning lights, buzzers and other prompt devices on the market, and the prompt module is set in the industrial computer of the production equipment or the workshop duty room to remind the staff to promptly remove the full tray stack and add the empty tray stack.

[0041] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation modes. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. The tray lifting mechanism of the circuit board tray placing machine is characterized by: It comprises a tray discharging tray and a tray closing tray arranged side by side, the rear side of the tray discharging tray is driven and connected to a first lifting assembly, the rear side of the tray closing tray is driven and connected to a second lifting assembly, an automatic tray picking and placing arm is arranged between the tray discharging tray and the tray closing tray, and telescopic clips are symmetrically arranged on the left and right sides of the tray closing tray.

2. The tray lifting mechanism of the circuit board tray placing machine according to claim 1, characterized in that: The first lifting assembly and the second lifting assembly both include a vertically arranged screw slide, the screw slide includes a vertical screw and a lifting slide that are threadedly connected in series, and the vertical screw drive is connected to a servo motor.

3. The tray lifting mechanism of the circuit board tray placing machine according to claim 2, characterized in that: The upper and lower ends of the screw slide are both provided with groove-type photoelectric sensors, and the side surfaces of the lifting slide are provided with trigger baffles corresponding to the groove-type photoelectric sensors, and the groove-type photoelectric sensors are electrically connected to the servo motor.

4. The tray lifting mechanism of the circuit board tray placing machine according to claim 2, characterized in that: The output end of the servo motor is connected to a planetary reducer, and the planetary reducer drives the vertical lead screw.

5. The tray lifting mechanism of the circuit board tray placing machine according to claim 1, characterized in that: The telescopic clip is slidably sleeved on the horizontal slide rail, and the telescopic clip is fixedly connected to the front end of the telescopic push rod.

6. The tray lifting mechanism of the circuit board tray placing machine according to claim 5, characterized in that: The telescopic clip, the horizontal slide rail and the telescopic push rod are correspondingly arranged at the top of the travel of the second lifting assembly.

7. The tray lifting mechanism of the circuit board tray placing machine according to claim 6, characterized in that: A tray sensor is arranged above the closing tray at the top of the stroke of the second lifting assembly, and the tray sensor is electrically connected to the second lifting assembly and the telescopic push rod.

8. The tray lifting mechanism of the circuit board tray placing machine according to claim 1, characterized in that: A proximity sensor is provided above the top of the travel of the first lifting assembly corresponding to the disk output bracket, and the proximity sensor is electrically connected to the first lifting assembly.

9. The circuit board tray lifting mechanism according to claim 1, characterized in that: A material-free sensor is arranged on the top of the tray discharging bracket, and a material-full sensor is arranged on the side of the bottom of the travel of the second lifting component corresponding to the tray closing bracket. The material-free sensor and the material-full sensor are respectively electrically connected to a prompt module.

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