Automatic charging tray feeding mechanism

Abstract

The invention provides an automatic charging tray feeding mechanism which comprises a rack, a charging tray lifting assembly, a charging tray overturning manipulator, a Z-axis driving assembly and a charging tray throwing assembly, the charging tray lifting assembly is fixed to the lower side of the rack, and the charging tray overturning manipulator comprises an X-axis driving assembly, a first movable support, a rotary driving assembly, a telescopic driving assembly and a clamping jaw assembly. The X-axis driving assembly is fixed to the rack, the first movable support is fixed to the power output end of the X-axis driving assembly, the rotary driving assembly is fixed to the first movable support, the telescopic driving assembly is fixed to the power output end of the rotary driving assembly, and the clamping jaw assembly is fixed to the power output end of the telescopic driving assembly. The Z-axis driving assembly is vertically fixed to the machine frame, the material disc putting assembly comprises a Y-axis driving assembly, a second movable support, a material bag, an X-axis air cylinder and a check block, and the automatic feeding device has the advantages that the automatic feeding device can be suitable for automatic feeding of a material tower, material discs can be rapidly fed in a narrow containing space, and the feeding efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of surface mount component tray conveying equipment, and particularly to an automatic tray feeding mechanism. Background Technology

[0002] Surface mount components (SMTs), as core basic components in the electronics manufacturing field, are typically stored by winding carrier tape around circular trays. These trays are then centrally stored in a feed tower for batch management and readiness for use. In the feed tower's structural design, to maximize storage capacity, each layer of trays is arranged vertically, with the spacing between trays compressed to a very small range, barely meeting the basic requirement of stable placement. Industrial robotic grippers, due to limitations in gripping size and operating space, cannot perform precise tray alignment and placement within these narrow gaps. Therefore, the industry currently widely uses manual methods for loading trays into the feed tower. However, manual tray placement is extremely inefficient and cannot meet the demands of high-efficiency production. Therefore, it is necessary to develop an automated tray loading mechanism to solve these problems. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic tray feeding mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An automatic tray feeding mechanism includes a frame, a tray lifting assembly, a tray flipping robot, a Z-axis drive assembly, and a tray dispensing assembly. The tray lifting assembly is fixed to the lower side of the frame. The tray flipping robot includes an X-axis drive assembly, a first movable support, a rotary drive assembly, a telescopic drive assembly, and a gripper assembly. The X-axis drive assembly is fixed to the frame, the first movable support is fixed to the power output end of the X-axis drive assembly, the rotary drive assembly is fixed to the first movable support, the telescopic drive assembly is fixed to the power output end of the rotary drive assembly, and the gripper assembly is fixed to the power output end of the telescopic drive assembly and corresponds to the tray lifting assembly. Above the components, the Z-axis drive assembly is vertically fixed on the frame. The material tray feeding assembly includes a Y-axis drive assembly, a second movable support, a material bag, an X-axis cylinder, and a stop block. The Y-axis drive assembly is fixed to the power output end of the Z-axis drive assembly, the second movable support is fixed to the power output end of the Y-axis drive assembly, and the material bag is fixed to the power output end of the Y-axis drive assembly. The material bag has openings at both the upper and rear ends, and a fan-shaped cavity is provided inside the material bag. The two sets of straight edges of the fan-shaped cavity correspond to the two sets of openings of the material bag, respectively. The X-axis cylinder is fixed outside the material bag, and its power output end passes through the fan-shaped cavity. The stop block is fixed to the power output end of the X-axis cylinder.

[0006] Further description of the invention: The upper opening of the material bag is provided with a vertical baffle, which corresponds to the side away from the gripper assembly.

[0007] Further description of the present invention: The upper opening of the material bag is provided with a first inclined guide plate. Two sets of the first inclined guide plates are provided, respectively corresponding to the front side and the side near the gripper assembly. The upper end of the first inclined guide plate is inclined outward.

[0008] Further description of the present invention: The rear end opening of the material bag is provided with a second inclined guide plate. Three sets of the second inclined guide plates are provided and correspond to the left, right and lower sides of the opening respectively. The rear end of the second inclined guide plate is inclined outward.

[0009] Further description of the invention: The material tray dispensing assembly also includes a limiting plate, which is fixed on the material bag and corresponds to the top of the stop block, with the front end of the limiting plate tilted downward.

[0010] Further description of the present invention: The material tray feeding assembly also includes a first sensor and a second sensor, both of which are fixed on the material bag and their sensing ends correspond to the fan-shaped cavity. The first sensor and the second sensor correspond to the front and rear sides of the stop block, respectively.

[0011] Further description of the present invention: The tray lifting assembly includes a Y-axis conveying device, a tray loading fixture, a lifting drive device, and a lifting arm. The Y-axis conveying device and the lifting drive device are both fixed on the frame. The tray loading fixture is placed on the Y-axis conveying device and is driven by the Y-axis conveying device to be conveyed to the side of the lifting drive device. The lifting arm is fixed to the power output end of the lifting drive device and is used to lift the tray in the tray loading fixture.

[0012] Further description of the present invention: The tray loading fixture includes a fixture base, a first stop bar, a second stop bar, a first enclosure plate, a second enclosure plate, a tray guide rod, a third sensor, and a pad. The fixture base is placed on a Y-axis conveying device. Two sets of first stop bars are provided and fixed on the left side of the fixture base. The front and rear ends of the first enclosure plate are respectively fixed to the upper ends of the two sets of first stop bars. Two sets of second stop bars are provided and fixed on the right side of the fixture base. The front and rear ends of the second enclosure plate are respectively fixed to the upper ends of the two sets of second stop bars. The pad is fixed in the upper middle part of the fixture base. The lower end of the tray guide rod is fixed on the pad. The third sensor is fixed on the upper end of the lifting drive device with the sensing end facing the tray loading fixture. Two sets of lifting arms are provided and correspond to the left and right sides of the pad respectively.

[0013] Further description of the present invention: The gripper assembly includes an elastic telescopic component, a clamping drive cylinder, and an external support gripper. The elastic telescopic component is fixed to the power output end of the telescopic drive assembly, the clamping drive cylinder is fixed to the elastic telescopic end of the elastic telescopic component, and two sets of external support grippers are provided and respectively fixed to the two sets of power output ends of the clamping drive cylinder.

[0014] The beneficial effects of this invention are as follows: Vertically stacked trays are placed on a tray lifting assembly and gradually moved upwards by the tray lifting assembly. The telescopic drive assembly of the tray-flipping robot drives the gripper assembly to descend, and the gripper assembly grabs the top tray. The telescopic drive assembly then drives the tray upwards. Subsequently, the rotation drive assembly drives the telescopic drive assembly to rotate 90°, flipping the originally horizontally placed tray to a vertical position. Then, the X-axis drive assembly drives the first movable bracket to move, thereby driving the tray to move towards the material hopper and align it above the hopper. The Z-axis drive assembly drives the material hopper to rise, so that the bottom of the tray aligns with the fan-shaped cavity. Finally, the gripper assembly releases the tray, and... Driven by the X-axis drive assembly, the tray leaves the material tray and falls into the fan-shaped cavity under its own gravity. Guided by the arc-shaped surface of the fan-shaped cavity, the bottom of the tray moves backward until it contacts the stop block. Then, the material tower rotates, aligning the placement cavity above the tower with the Z-axis drive assembly. The Z-axis drive assembly moves the tray to the same height as the placement cavity and, via the Y-axis drive assembly, moves the second movable support, thus aligning the rear opening of the fan-shaped cavity on the tray with the placement cavity of the material tower. The X-axis cylinder drives the stop block to retract and no longer obstruct the tray. The tray automatically rolls along the arc-shaped surface at the bottom of the fan-shaped cavity into the placement cavity, completing the loading process. The advantage of this design is its applicability to automatic material tower loading, enabling rapid loading of trays within narrow storage spaces and improving loading efficiency. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the material tray lifting component in this invention;

[0017] Figure 3 This is a structural diagram of the material tray flipping robot in this invention;

[0018] Figure 4 This is a structural diagram of the material tray feeding component in this invention;

[0019] Figure 5 This is a top view of the material tray dispensing component in this invention;

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Frame; 2. Tray lifting assembly; 21. Y-axis conveyor; 22. Tray loading fixture; 221. Fixture base; 222. First stop bar; 223. Second stop bar; 224. First enclosure plate; 225. Second enclosure plate; 226. Tray guide bar; 227. Third sensor; 23. Lifting drive device; 3. Tray flipping robot; 31. X-axis drive assembly; 32. First movable support; 33. Rotation drive assembly; 34. Telescopic drive assembly; 35. 351. Gripper assembly; 352. Elastic telescopic component; 353. Clamping drive cylinder; 354. External support gripper; 4. Z-axis drive assembly; 5. Material tray feeding assembly; 555. Y-axis drive assembly; 56. Second movable bracket; 57. Material bag; 58. Sector-shaped cavity; 59. Vertical baffle; 50. First inclined guide plate; 51. Second inclined guide plate; 52. X-axis cylinder; 53. Stop block; 54. Limiting plate; 55. First sensor; 56. Second sensor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1 to 5 As shown, an automatic tray feeding mechanism includes a frame 1, a tray lifting assembly 2, a tray flipping robot 3, a Z-axis drive assembly 4, and a tray dispensing assembly 5. The tray lifting assembly 2 is fixed to the lower side of the frame 1. The tray flipping robot 3 includes an X-axis drive assembly 31, a first movable support 32, a rotary drive assembly 33, a telescopic drive assembly 34, and a gripper assembly 35. The X-axis drive assembly 31 is fixed to the frame 1. The first movable support 32 is fixed to the power output end of the X-axis drive assembly 31. The rotary drive assembly 33 is fixed to the first movable support 32. The telescopic drive assembly 34 is fixed to the power output end of the rotary drive assembly 33. The gripper assembly 35 is fixed to the power output end of the telescopic drive assembly 34 and corresponds to the tray lifting assembly 2. Above, the Z-axis drive assembly 4 is vertically fixed on the frame 1. The material tray feeding assembly 5 includes a Y-axis drive assembly 51, a second movable bracket 52, a material bag 53, an X-axis cylinder 54, and a stop block 55. The Y-axis drive assembly 51 is fixed to the power output end of the Z-axis drive assembly 4. The second movable bracket 52 is fixed to the power output end of the Y-axis drive assembly 51. The material bag 53 is fixed to the power output end of the Y-axis drive assembly 51. The upper end and the rear end of the material bag 53 are provided with openings. The material bag 53 is provided with a fan-shaped cavity 531. The two sets of straight edges of the fan-shaped cavity 531 correspond to the two sets of openings of the material bag 53. The X-axis cylinder 54 is fixed outside the material bag 53 and its power output end passes through the fan-shaped cavity 531. The stop block 55 is fixed to the power output end of the X-axis cylinder 54.

[0024] Vertically stacked trays are placed on tray lifting assembly 2 and gradually moved upwards by tray lifting assembly 2. The telescopic drive assembly 34 on the tray flipping robot 3 drives the gripper assembly 35 to descend, and the gripper assembly 35 grabs the top tray. The telescopic drive assembly 34 drives the tray to move upwards. Subsequently, the rotation drive assembly 33 drives the telescopic drive assembly 34 to rotate 90°, flipping the originally horizontally placed tray to a vertical position. Then, the X-axis drive assembly 31 drives the first movable bracket 32 ​​to move, thereby driving the tray to move towards the tray 53 and align it above the tray 53. The Z-axis drive assembly 4 drives the tray 53 to rise, so that the bottom of the tray aligns with the fan-shaped cavity 531. Then, the gripper assembly 35 releases the tray and drives the X-axis... Driven by the moving component 31, the material tray leaves the feed tray and falls into the fan-shaped cavity 531 under its own gravity. The bottom of the tray moves backward under the guidance of the arc-shaped surface of the fan-shaped cavity 531 until it contacts the stop block 55 and stops. Then, the feed tower rotates, aligning the placement cavity above the feed tower with the Z-axis drive component 4. The Z-axis drive component 4 drives the feed bag 53 to move to the same height as the placement cavity, and drives the second movable bracket 52 to move via the Y-axis drive component 51. This aligns the rear opening of the fan-shaped cavity 531 on the feed bag 53 with the placement cavity of the feed tower. The X-axis cylinder 54 drives the stop block 55 to retract and no longer obstruct the feed tray. The feed tray automatically rolls along the arc-shaped surface at the bottom of the fan-shaped cavity 531 into the placement cavity, thus completing the feeding process. The advantage of this design is that it is suitable for automatic feeding of feed towers and can quickly feed the feed tray in narrow storage spaces, improving feeding efficiency.

[0025] The upper opening of the material tray 53 is provided with a vertical baffle 532, which corresponds to the side away from the gripper assembly 35. The vertical baffle 532 can limit the movement of the material tray, ensuring that the material tray is located above the fan-shaped cavity 531.

[0026] The upper opening of the material bag 53 is provided with a first inclined guide plate 533. Two sets of the first inclined guide plates 533 are provided, corresponding to the front side and the side near the gripper assembly 35 respectively. The upper end of the first inclined guide plate 533 is inclined outward.

[0027] During the process of the material tray entering the fan-shaped cavity 531, the first inclined guide plate 533 can guide the bottom of the material tray, so that the material tray can smoothly enter the fan-shaped cavity 531.

[0028] The rear opening of the material bag 53 is provided with a second inclined guide plate 534. Three sets of the second inclined guide plates 534 are provided, which correspond to the left, right and lower sides of the opening respectively. The rear end of the second inclined guide plate 534 is inclined outward.

[0029] The material tray 53 is connected to the placement cavity inside the material tower through the second inclined guide plate 534, so that the material tray enters the material tower stably.

[0030] The material tray dispensing component 5 also includes a limiting plate 56, which is fixed on the material bag 53 and corresponds to the top of the stop block 55. The front end of the limiting plate 56 is inclined downward.

[0031] The limiting plate 56 can limit the rear end of the material tray to prevent the material tray from popping out of the material bag 53 after it falls.

[0032] The material tray dispensing assembly 5 also includes a first sensor 57 and a second sensor 58. The first sensor 57 and the second sensor 58 are both fixed on the material bag 53 and their sensing ends are both inside the fan-shaped cavity 531. The first sensor 57 and the second sensor 58 are respectively located on the front and rear sides of the stop block 55.

[0033] The first sensor 57 is used to sense whether the material tray has been placed in the fan-shaped cavity 531. After the material is fed into the tower, the second sensor 58 is used to sense whether the material tray has been completely removed from the material hopper 53 to ensure stable feeding.

[0034] The tray lifting assembly 2 includes a Y-axis conveying device 21, a tray loading fixture 22, a lifting drive device 23, and a lifting arm. The Y-axis conveying device 21 and the lifting drive device 23 are both fixed on the frame 1. The tray loading fixture 22 is placed on the Y-axis conveying device 21 and is driven by the Y-axis conveying device 21 to convey the tray to the side of the lifting drive device 23. The lifting arm is fixed to the power output end of the lifting drive device 23 and is used to lift the tray inside the tray loading fixture 22.

[0035] The batch of trays are stacked vertically in the tray loading fixture 22. The Y-axis conveying device 21 transports the tray loading fixture 22 to the bottom of the tray flipping robot 3. The lifting arm corresponds to the bottom of the batch of trays and gradually lifts the trays through the lifting drive device 23 so that the tray flipping robot 3 can pick up the materials.

[0036] The tray loading fixture 22 includes a fixture base 221, a first stop bar 222, a second stop bar 223, a first enclosure plate 224, a second enclosure plate 225, a tray conveyor 226, a third sensor 227, and a pad. The fixture base 221 is placed on the Y-axis conveying device 21. Two sets of first stop bars 222 are provided and fixed on the left side of the fixture base 221. The front and rear ends of the first enclosure plate 224 are respectively fixed to the upper ends of the two sets of first stop bars 222. Two sets of second stop bars 223 are provided and fixed on the right side of the fixture base 221. The front and rear ends of the second enclosure plate 225 are respectively fixed to the upper ends of the two sets of second stop bars 223. The pad is fixed in the upper middle part of the fixture base 221. The lower end of the tray conveyor 226 is fixed on the pad. The third sensor 227 is fixed on the upper end of the lifting drive device 23 with the sensing end facing the tray loading fixture 22. Two sets of lifting arms are provided and correspond to the left and right sides of the pad, respectively.

[0037] The batch material trays are inserted into the material tray rod 226 through the central through hole. The bottommost material tray is separated from the upper surface of the fixture base 221 by a certain distance through the pad, so that the lifting arm can enter the bottom of the material tray. Of course, the pad can also be placed on both sides of the material tray rod 226 to raise the two sides of the bottom of the material tray, which can also achieve the bottom of the material tray being suspended. The first stop rod 222, the second stop rod 223, the first enclosure plate 224 and the second enclosure plate 225 are used to protect the material trays and prevent them from being damaged during transportation.

[0038] The gripper assembly 35 includes an elastic telescopic component 351, a clamping drive cylinder 352, and an external support gripper 353. The elastic telescopic component 351 is fixed to the power output end of the telescopic drive assembly 34, the clamping drive cylinder 352 is fixed to the elastic telescopic end of the elastic telescopic component 351, and two sets of external support grippers 353 are provided and respectively fixed to the two sets of power output ends of the clamping drive cylinder 352.

[0039] By setting the elastic telescopic component 351, a buffering effect can be achieved after the material tray contacts the vertical baffle 532. The two sets of external support claws 353 are inserted into the through hole in the middle of the material tray, and the external support claws 353 are driven to move outward by the clamping drive cylinder 352, thereby clamping the material tray. When the material tray is released, the two sets of external support claws 353 move closer to each other and are pulled outward from the through hole of the material tray.

[0040] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. An automatic tray feeding mechanism, characterized in that: The device includes a frame, a tray lifting assembly, a tray flipping robot, a Z-axis drive assembly, and a tray dispensing assembly. The tray lifting assembly is fixed to the lower side of the frame. The tray flipping robot includes an X-axis drive assembly, a first movable support, a rotary drive assembly, a telescopic drive assembly, and a gripper assembly. The X-axis drive assembly is fixed to the frame. The first movable support is fixed to the power output end of the X-axis drive assembly. The rotary drive assembly is fixed to the first movable support. The telescopic drive assembly is fixed to the power output end of the rotary drive assembly. The gripper assembly is fixed to the power output end of the telescopic drive assembly and is positioned above the tray lifting assembly. The Z-axis drive assembly... The axis drive assembly is vertically fixed on the frame. The material tray feeding assembly includes a Y-axis drive assembly, a second movable bracket, a material bag, an X-axis cylinder, and a stop block. The Y-axis drive assembly is fixed to the power output end of the Z-axis drive assembly. The second movable bracket is fixed to the power output end of the Y-axis drive assembly. The material bag is fixed to the power output end of the Y-axis drive assembly. The material bag has openings at both its upper and rear ends. The material bag has a fan-shaped cavity inside. The two straight sides of the fan-shaped cavity correspond to the two openings of the material bag. The X-axis cylinder is fixed outside the material bag, and its power output end passes through the fan-shaped cavity. The stop block is fixed to the power output end of the X-axis cylinder.

2. The automatic tray feeding mechanism according to claim 1, characterized in that: The upper opening of the material bag is provided with a vertical baffle, which corresponds to the side away from the gripper assembly.

3. The automatic feeding mechanism for a material tray according to claim 2, characterized in that: The upper opening of the material bag is provided with a first inclined guide plate. Two sets of the first inclined guide plates are provided, corresponding to the front side and the side near the gripper assembly, respectively. The upper end of the first inclined guide plate is inclined outward.

4. The automatic tray feeding mechanism according to claim 1, characterized in that: The rear end opening of the material bag is provided with a second inclined guide plate. The second inclined guide plate is provided in three sets, which correspond to the left, right and lower sides of the opening respectively. The rear end of the second inclined guide plate is inclined outward.

5. The automatic feeding mechanism for a material tray according to claim 1, characterized in that: The material tray dispensing assembly also includes a limiting plate, which is fixed on the material bag and corresponds to the top of the stop block, with the front end of the limiting plate tilted downward.

6. The automatic tray feeding mechanism according to claim 1, characterized in that: The material tray dispensing assembly also includes a first sensor and a second sensor. Both the first sensor and the second sensor are fixed on the material bag and their sensing ends correspond to the fan-shaped cavity. The first sensor and the second sensor correspond to the front and rear sides of the stop block, respectively.

7. The automatic tray feeding mechanism according to claim 1, characterized in that: The tray lifting assembly includes a Y-axis conveying device, a tray loading fixture, a lifting drive device, and a lifting arm. The Y-axis conveying device and the lifting drive device are both fixed on the frame. The tray loading fixture is placed on the Y-axis conveying device and is driven by the Y-axis conveying device to convey the tray to one side of the lifting drive device. The lifting arm is fixed to the power output end of the lifting drive device and is used to lift the tray inside the tray loading fixture.

8. The automatic tray feeding mechanism according to claim 7, characterized in that: The material tray loading fixture includes a fixture base, a first stop bar, a second stop bar, a first enclosure plate, a second enclosure plate, a material tray guide rod, a third sensor, and a pad. The fixture base is placed on the Y-axis conveying device. Two sets of first stop bars are provided and fixed on the left side of the fixture base. The front and rear ends of the first enclosure plate are respectively fixed to the upper ends of the two sets of first stop bars. Two sets of second stop bars are provided and fixed on the right side of the fixture base. The front and rear ends of the second enclosure plate are respectively fixed to the upper ends of the two sets of second stop bars. The pad is fixed to the upper center of the fixture base. The lower end of the material tray guide rod is fixed to the pad. The third sensor is fixed to the upper end of the lifting drive device with its sensing end facing the material tray loading fixture. Two sets of lifting arms are provided and correspond to the left and right sides of the pad respectively.

9. The automatic tray feeding mechanism according to claim 1, characterized in that: The gripper assembly includes an elastic telescopic component, a clamping drive cylinder, and an external support gripper. The elastic telescopic component is fixed to the power output end of the telescopic drive assembly, the clamping drive cylinder is fixed to the elastic telescopic end of the elastic telescopic component, and two sets of external support grippers are provided and respectively fixed to the two sets of power output ends of the clamping drive cylinder.

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