Bulk patching apparatus

Abstract

This utility model discloses a bulk material placement device, including a placement worktable, a feeding assembly, and a mounting head assembly. The feeding assembly includes a vibratory feeder and a lifting structure, the lifting structure being used to lift the product from the outlet of the vibratory feeder upwards to the picking position. The mounting head assembly includes a turntable, a suction head, a rotary drive, and a Z-axis pressing component. A plurality of suction heads are arranged in a ring on the turntable. Each suction head includes a mounting block, a suction rod slidably connected to the mounting block, a suction block connected to the bottom of the suction rod, and multiple suction nozzles connected to the suction block. A first elastic element is provided between the suction block and the mounting block. The rotary drive is used to drive the turntable to rotate, and the Z-axis pressing component is used to drive the suction rod to move downwards at the placement position. The first elastic element provides an elastic force to drive the suction rod to move upwards. This bulk material placement machine can simultaneously feed multiple products, improving placement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chip mounters, specifically to a bulk chip mounter. Background Technology

[0002] In the field of electronic component placement technology, the placement of electronic components is a highly technical and complex process. Pick-and-place machines are a primary piece of equipment for this task. During operation, a computer-aided control system and a corresponding positioning system accurately position the placement head. The nozzle on the placement head automatically picks up the components from the automatic feeder, and then the transmission system drives the placement head to accurately place the electronic components onto the corresponding positions on the target circuit board, completing one automatic placement cycle. However, the automatic feeder typically uses a vibratory feeder, and the placement head can only pick up one component at a time, resulting in low placement efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a bulk material patching equipment that can simultaneously feed multiple products, thereby improving patching efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A bulk material patch device, comprising:

[0006] A surface mount assembly (SMA) stage is used to hold circuit boards.

[0007] Multiple feeding components, each including a vibrating plate and a lifting structure, wherein the lifting structure is used to lift the product from the outlet of the vibrating plate upward to the picking position;

[0008] The feed assembly includes a turntable, a suction head, a rotary drive, and a Z-axis pressing member. A plurality of suction heads are arranged in a ring on the turntable. Each suction head includes a mounting block, a suction rod slidably connected to the mounting block in a vertical direction, a suction block connected to the bottom of the suction rod, and a plurality of suction nozzles connected to the suction block. A first elastic element is provided between the suction block and the mounting block. The rotary drive is used to drive the turntable to rotate. When the suction head rotates with the turntable, the plurality of suction nozzles sequentially pick up products from a plurality of the feeding assemblies. The Z-axis pressing member is used to drive the suction rod to move downwards at the patching position. The first elastic element provides an elastic force to drive the suction rod to move upwards.

[0009] As a further improvement to the above technical solution, the mounting block is provided with a first mounting hole and a second mounting hole, the suction rod passes through the first mounting hole, the suction rod is provided with a fixing block, the fixing block is provided with a guide rod, and the guide rod is slidably connected to the second mounting hole through a linear bearing.

[0010] As a further improvement to the above technical solution, the first elastic element includes a first spring, which is sleeved on the suction rod. A limiting washer is fixedly connected to the bottom of the first mounting hole on the mounting block. The bottom of the first spring is connected to the limiting washer. A connector is provided at the top of the suction rod. The suction rod is connected to an external negative pressure device through the connector. The connector abuts against the bottom of the first spring when the suction rod is downward.

[0011] As a further improvement to the above technical solution, the Z-axis pressing component includes a Z-axis motor disposed at the patching position and the picking position. The mover of the Z-axis motor is vertically arranged downwards, and when the mover of the Z-axis motor extends downwards, it abuts against the top of the suction nozzle rod.

[0012] As a further improvement to the above technical solution, the lifting structure includes an electromagnet, a magnetic cover plate, a ejector pin, a lifting shaft, and a second elastic element. The magnetic cover plate has a through hole, and the lifting shaft is slidably connected in the through hole. The electromagnet has a receiving hole, and one end of the lifting shaft is housed in the receiving hole. The other end of the lifting shaft is provided with the ejector pin. The second elastic element is disposed between the lifting shaft and the side wall of the receiving hole. The lifting shaft is made of magnetic metal. When the electromagnet is energized, it provides magnetic attraction to move the lifting shaft into the receiving hole. At the same time, the lifting shaft compresses the second elastic element. When the electromagnet is de-energized, the second elastic element provides an elastic restoring force to drive the lifting shaft upward.

[0013] As a further improvement to the above technical solution, a limiting ring is provided on the peripheral wall of the lifting shaft, and the second elastic element includes a second spring, which is sleeved on the lifting shaft and connected between the limiting ring and the bottom of the receiving hole.

[0014] As a further improvement to the above technical solution, the patching stage includes a stage, an X-axis transverse module, and a Y-axis transverse module. The stage is connected to the drive end of the X-axis transverse module, and the X-axis transverse module is connected to the drive end of the Y-axis transverse module.

[0015] As a further improvement to the above technical solution, the bulk material patching equipment also includes a shaping component. The shaping component is located at the shaping position between the material picking position and the patching position. When the first turntable drives the first suction head to move to the shaping position, the shaping component is used to shape the product.

[0016] As a further improvement to the above technical solution, the bulk material placement equipment also includes a vision component, which includes a downward-looking camera and a positioning camera. The downward-looking camera is located between the shaping position and the placement position and is used for detecting the product after shaping. The positioning camera is located above the placement position and is used to locate the placement position of the product.

[0017] As a further improvement to the above technical solution, the bulk material patching equipment also includes an open waste container located at the disposal position between the patching position and the material picking position. When the downward-facing camera detects a defective product, the first turntable drives the first suction head to move to the disposal position, and the first suction head puts the defective product into the waste container.

[0018] The beneficial effects of this utility model are: the multiple suction nozzles integrated in the suction head, together with the lifting structure, allow the suction head to sequentially pick up products from multiple pick-up positions when the turntable rotates, and then, together with the Z-axis pressing component, achieve synchronous placement of multiple products. Compared with the existing technology of single material feeding by the vibratory plate and single material picking up by the placement head, this greatly improves the placement efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an assembly diagram of a bulk material patching device according to an embodiment of this utility model;

[0021] Figure 2 This is a top view of a bulk material patching device according to an embodiment of this utility model;

[0022] Figure 3 This is a side view of the head assembly in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the suction head in an embodiment of this utility model;

[0024] Figure 5 This is a cross-sectional view of the suction head in an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the vibrating disc in an embodiment of this utility model;

[0026] Figure 7 This is a cross-sectional view of the lifting structure in an embodiment of this utility model.

[0027] Reference numerals: 100, machine base; 200, support; 310, platform; 320, X-axis transverse movement module; 330, Y-axis transverse movement module; 400, suction head assembly; 410, rotary motor; 420, turntable; 430, suction head; 431, mounting block; 432, suction rod; 433, suction block; 434, suction nozzle; 435, fixing block; 436, guide rod; 437, connector; 438, [missing information] 439. Spring; 4310. Linear bearing; 440. Limiting washer; 500. Z-axis motor; 511. Vibratory feeder; 512. Lifting structure; 513. Electromagnet; 514. Magnet cover; 515. Lifting shaft; 516. Ejector pin; 517. Bushing; 518. Second spring; 519. Shaft end cover; 600. Shaping assembly; 710. Downward-viewing camera; 720. Positioning camera; 800. Waste pipe. Detailed Implementation

[0028] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0029] Reference Figures 1-7 This utility model provides a bulk material patching device, including a patching worktable, a bonding assembly 400, a shaping assembly 600, a vision assembly, and multiple feeding assemblies. The feeding assembly includes a vibratory feeder 500 and a lifting structure 510. The lifting structure 510 lifts the product from the outlet of the vibratory feeder to the picking position. The bonding assembly 400 picks up the product and transfers it to the shaping assembly 600 for shaping, and then transfers it to the patching worktable for patching. The vision assembly detects whether the product meets the patching standards, and defective products are directly transferred to the discard position for disposal.

[0030] In this embodiment, refer to Figure 1 and Figure 2The placement table includes a stage 310, an X-axis transverse module 320, and a Y-axis transverse module 330. The stage 310 is connected to the drive end of the X-axis transverse module 320, and the X-axis transverse module 320 is connected to the drive end of the Y-axis transverse module 330. Both the X-axis transverse module 320 and the Y-axis transverse module 330 use linear motors, or other linear modules may be used. The stage 310 is used to place the circuit board to be placed. The X-axis transverse module 320 and the Y-axis transverse module 330 respectively drive the stage 310 to move along the X and Y axes, thereby adjusting the placement position.

[0031] In this embodiment, refer to Figures 3-5 The bonding head assembly 400 includes a turntable 420, a suction head 430, a rotary drive component, and a Z-axis pressing component. A plurality of suction heads 430 are arranged in a ring on the turntable 420. The rotary drive component includes a rotary motor 410, which is mounted on a bracket 200 fixed on the machine base 100. The turntable 420 is mounted on the output end of the rotary motor 410. When the rotary motor 410 drives the turntable 420 to rotate, it drives the suction head 430 to move cyclically along a ring track. The suction head 430 passes through the material picking position, the shaping position, the detection position, the bonding position, and the discard position.

[0032] Specifically, the suction head 430 includes a mounting block 431, a suction rod 432 slidably connected to the mounting block 431 in a vertical direction, a suction block 433 connected to the bottom of the suction rod 432, and a plurality of suction nozzles 434 connected to the suction block 433. The mounting block 431 is provided with a first mounting hole and a second mounting hole. The suction rod 432 passes through the first mounting hole. A fixing block 435 is provided on the suction rod 432. A guide rod 436 is provided on the fixing block 435. The guide rod 436 is slidably connected to the second mounting hole through a linear bearing 439. An elastic element is provided between the suction nozzle block 433 and the mounting block 431. The elastic element includes a first spring 438, which is sleeved on the suction nozzle rod 432. A limiting washer 4310 is fixedly connected to the bottom of the mounting hole on the mounting block 431. The bottom of the first spring 438 is connected to the limiting washer 4310. A connector 437 is provided at the top of the suction nozzle rod 432. The suction nozzle rod 432 is connected to an external negative pressure device through the connector 437 (the pipeline of the connector 437 is connected to the external negative pressure device through an air slip ring). When the suction nozzle rod 432 is downward, the connector 437 abuts against the top of the first spring 438.

[0033] Furthermore, the Z-axis pressing component includes a Z-axis motor 440 disposed at the patch position. The Z-axis motor 440 is a voice coil motor. The Z-axis pressing component can also be a linear module such as a linear motor, servo motor, cylinder, or electric cylinder. The Z-axis motor 440 is mounted on the bracket 200, and the moving part of the Z-axis cylinder 440 is vertically arranged downwards. The specific placement action is as follows: the mover of the Z-axis motor 440 located at the material picking position extends downward and abuts against the top of the suction rod 432, and then pushes the suction rod 432 downward. When the suction rod 432 moves downward, the connector 437 abuts against the top of the first spring 438, thereby compressing the first spring 438. After the multiple suction nozzles 434 place the product on the corresponding position of the circuit board, the vacuum is broken and the product is released. Then the mover of the Z-axis motor 440 retracts, and the restoring force of the first spring 438 pushes the connector 437 upward, causing the suction nozzle 434 to leave the circuit board. The turntable 420 can then drive the suction head 430 to rotate to the next station.

[0034] In this embodiment, refer to Figure 7 The lifting structure 510 includes an electromagnet 511, a magnetic cover plate 512, a push pin 514, a lifting shaft 513, and a second elastic element. The magnetic cover plate 512 has a through hole, in which a bushing 515 is installed. The lifting shaft 513 is slidably connected to the through hole, and an end cap 517 is provided at the end of the through hole to prevent the bushing 515 from disengaging. The electromagnet 511 has a receiving hole, in which one end of the lifting shaft 513 is received, and the push pin 514 is located at the other end of the lifting shaft 513. A limit ring is provided on the peripheral wall of the lifting shaft 513. The second elastic element, including a second spring 516, is positioned between the lifting shaft 513 and the side wall of the receiving hole. The second spring 516 is sleeved on the lifting shaft 513 and connected between the limit ring and the bottom of the receiving hole.

[0035] It can be understood that the lifting shaft 513 is made of magnetic metal. When the electromagnet 511 is energized, it provides magnetic attraction to draw the lifting shaft 513 into the receiving hole. At the same time, the lifting shaft 513 compresses the second spring 516. When the product of the vibrating plate vibrates to the discharge port, the electromagnet 511 is de-energized, and the second spring 516 provides elastic restoring force to drive the lifting shaft 513 upward, thereby facilitating the suction nozzle 434 to pick up the product.

[0036] In this embodiment, refer to Figure 2 and Figure 3The vision components include a downward-looking camera 710 and a positioning camera 720. The downward-looking camera 710 is located at the detection position between the shaping position and the placement position, and is used for detecting the shaped product. The bulk material placement machine also includes an open waste container, which is a waste pipe 800 located at the discard position between the placement position and the pick-up position. When the downward-looking camera 710 detects a defective product, the first turntable 420 drives the first suction head 430 to move to the discard position. The first suction head 430 breaks the vacuum and puts the defective product into the waste pipe 800 below. The positioning camera 720 is located above the placement position and is used to position the product for placement, ensuring the accuracy of the placement.

[0037] It is understood that the bulk material patching equipment of this utility model includes at least ten stations. In this embodiment, it includes four material picking stations, one shaping station, one detection station, one patching station and one waste station, corresponding to four feeding components, one shaping component 600, one downward viewing camera 710, one patching worktable and one waste pipe 800. Correspondingly, the patching head component 400 includes at least ten suction heads 430, ensuring that each station has a corresponding suction head 430.

[0038] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A bulk material patching device, characterized in that, include: A surface mount assembly (SMA) stage is used to hold circuit boards. Multiple feeding components, each including a vibrating plate and a lifting structure, wherein the lifting structure is used to lift the product from the outlet of the vibrating plate upward to the picking position; The feed assembly includes a turntable, a suction head, a rotary drive, and a Z-axis pressing member. A plurality of suction heads are arranged in a ring on the turntable. Each suction head includes a mounting block, a suction rod slidably connected to the mounting block in a vertical direction, a suction block connected to the bottom of the suction rod, and a plurality of suction nozzles connected to the suction block. A first elastic element is provided between the suction block and the mounting block. The rotary drive is used to drive the turntable to rotate. When the suction head rotates with the turntable, the plurality of suction nozzles sequentially pick up products from a plurality of the feeding assemblies. The Z-axis pressing member is used to drive the suction rod to move downwards at the patching position. The first elastic element provides an elastic force to drive the suction rod to move upwards.

2. The bulk material patching equipment according to claim 1, characterized in that: The mounting block is provided with a first mounting hole and a second mounting hole. The suction rod passes through the first mounting hole. The suction rod is provided with a fixing block. The fixing block is provided with a guide rod. The guide rod is slidably connected to the second mounting hole through a linear bearing.

3. The bulk material patching equipment according to claim 2, characterized in that: The first elastic element includes a first spring, which is sleeved on the nozzle rod. A limiting washer is fixedly connected to the bottom of the first mounting hole on the mounting block. The bottom of the first spring is connected to the limiting washer. A connector is provided at the top of the nozzle rod. The nozzle rod is connected to an external negative pressure device through the connector. The connector abuts against the bottom of the first spring when the nozzle rod is downward.

4. The bulk material patching equipment according to claim 1, characterized in that: The Z-axis pressing component includes a Z-axis motor located at the patching position and the material picking position. The moving part of the Z-axis motor is vertically arranged downwards, and when the moving part of the Z-axis motor extends downwards, it abuts against the top of the suction nozzle rod.

5. The bulk material patching equipment according to claim 1, characterized in that: The lifting structure includes an electromagnet, a magnetic cover plate, a push pin, a lifting shaft, and a second elastic element. The magnetic cover plate has a through hole, and the lifting shaft is slidably connected in the through hole. The electromagnet has a receiving hole, and one end of the lifting shaft is housed in the receiving hole. The other end of the lifting shaft is provided with the push pin. The second elastic element is disposed between the lifting shaft and the side wall of the receiving hole. The lifting shaft is made of magnetic metal. When the electromagnet is energized, it provides magnetic attraction to move the lifting shaft into the receiving hole. At the same time, the lifting shaft compresses the second elastic element. When the electromagnet is de-energized, the second elastic element provides an elastic restoring force to drive the lifting shaft upward.

6. The bulk material patching equipment according to claim 5, characterized in that: A limiting ring is provided on the peripheral wall of the lifting shaft. The second elastic element includes a second spring, which is sleeved on the lifting shaft and connected between the limiting ring and the bottom of the receiving hole.

7. The bulk material patching equipment according to claim 1, characterized in that: The placement stage includes a platform, an X-axis transverse module, and a Y-axis transverse module. The platform is connected to the drive end of the X-axis transverse module, and the X-axis transverse module is connected to the drive end of the Y-axis transverse module.

8. The bulk material patching equipment according to claim 1, characterized in that: It also includes a shaping component, which is located at the shaping position between the material picking position and the patching position. When the turntable drives the suction head to move to the shaping position, the shaping component is used to shape the product.

9. A bulk material patching device according to claim 8, characterized in that: It also includes a vision component, which includes a downward-facing camera and a positioning camera. The downward-facing camera is located between the shaping position and the patching position and is used for detecting the product after shaping. The positioning camera is located above the patching position and is used to locate the patching position on the product.

10. A bulk material patching device according to claim 9, characterized in that: It also includes an open waste container located at the disposal position between the patching position and the picking position. When the downward-facing camera detects a defective product, the turntable moves the suction head to the disposal position, and the suction head puts the defective product into the waste container.

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