CN112193783A

CN112193783A - Turnover mechanism, turnover machine and PCB production equipment

Info

Publication number: CN112193783A
Application number: CN202011085253.5A
Authority: CN
Inventors: 李彪; 袁伟刚; 周振华; 陈斌; 孟豪; 刘振昌
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Xinyuan Electronics Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Xinyuan Electronics Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-01-08

Abstract

The invention provides a turnover mechanism, a turnover machine and PCB production equipment, relates to the technical field of electronic assembly, and solves the technical problem that the upper plate of the PCB of the existing double-sided process needs to be turned over and operated manually. The turnover mechanism comprises a turnover frame, a conveying device and a fixing device, wherein the conveying device and the fixing device are arranged on the turnover frame; the turnover frame can be driven by the power device to turn over 180 degrees along the turnover shaft of the turnover frame, so that the product to be turned over on the conveying track is driven to turn over; compared with the existing manual turnover operation, the automatic turnover machine has the advantages of high production efficiency, time and labor saving, production cost reduction and creation of conditions for realizing automatic production. After the turnover mechanism and the PCB production equipment adopt the turnover mechanism, the mechanical turnover of a product is conveniently and quickly realized, the production efficiency is improved, and the automatic production can be realized.

Description

Turnover mechanism, turnover machine and PCB production equipment

Technical Field

The invention relates to the technical field of electronic assembly, in particular to a turnover mechanism, a turnover machine and PCB production equipment.

Background

SMT is an abbreviation of Surface Mounting Technology, which is currently the most popular technique and process in the electronic assembly industry. The surface-mounted component without pins or short leads is mounted on the surface of a printed circuit board or other substrates and is welded and assembled by methods such as reflow soldering. SMT paster refers to the abbreviation of a series of process flows that are processed on the basis of a PCB (printed circuit board).

The applicant has found that the prior art has at least the following technical problems:

the PCB board of two-sided technology of production is gone up the board and needs the manual work to turn over the operation of going on the computer to the board by SMT paster equipment at present, and production efficiency is low, and manufacturing cost is higher, also can't realize automated production.

Disclosure of Invention

The invention aims to provide a turnover mechanism, a turnover machine and PCB production equipment, and aims to solve the technical problems that in the prior art, the upper plate of a PCB with a double-sided process needs to be turned over and put on the machine manually, and the production efficiency is low. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a turnover mechanism which comprises a turnover frame, a conveying device and a fixing device, wherein the conveying device and the fixing device are both arranged on the turnover frame, the conveying device comprises a driving device and a conveying track, the conveying track is provided with a first end and a second end, and the fixing device is arranged at the position close to the second end; the product to be turned can enter from the first end of the conveying track and be conveyed to the second end to be positioned and fixed by the fixing device; the turnover frame can be driven by the power device to turn over 180 degrees along the turnover shaft, so that the product to be turned over on the conveying track is driven to turn over.

Optionally, the conveying track comprises a first conveying track and a second conveying track which are symmetrically arranged on the turnover frame, and the product to be turned is clamped between the first conveying track and the second conveying track; the fixing device is mounted on the first conveying rail or the second conveying rail.

Optionally, the first conveying rail is fixedly mounted to the roll-over stand, and the second conveying rail is slidably mounted to the roll-over stand.

Optionally, the conveying track further comprises a width adjusting device, and the second conveying track is slidably arranged on the turnover frame through the width adjusting device.

Optionally, the width adjusting device comprises a movable block, a guide rod, an adjusting screw rod, an adjusting nut and an adjusting hand wheel, the roll-over stand is U-shaped, the guide rod stretches across and is fixed on two side wall surfaces of the roll-over stand, the adjusting nut is fixedly connected with the movable block, one end of the adjusting screw rod is in transmission connection with the movable block through the adjusting nut, and the other end of the adjusting screw rod penetrates through the roll-over stand and is connected with the adjusting hand wheel; the second conveying rail is arranged on the movable block, and the movable block is slidably arranged on the guide rod.

Optionally, the first conveying rail and the second conveying rail both comprise two conveying belts arranged at an upper interval and a lower interval, and the product to be turned is conveyed under the action of the friction force of the conveying belts.

Optionally, the fixing device is a fixing cylinder, and an extending shaft of the fixing cylinder can abut against a product to be turned over.

Optionally, the turnover mechanism further comprises a controller and a detection device in signal connection with the controller, and the driving device is in signal connection with the controller.

Optionally, the detection device comprises an in-place detection sensor and a feeding detection sensor, and the in-place detection sensor is arranged at a position of the roll-over stand close to the second end; the feeding detection sensor is arranged at a position of the turnover frame close to the first end.

The invention provides a turnover machine which comprises a rack, a turnover motor serving as a power device, a transmission mechanism and any one of the turnover mechanisms, wherein the turnover motor is in transmission connection with the turnover mechanism through the transmission mechanism so as to drive the turnover mechanism to turn over on the rack for 180 degrees.

Optionally, the turnover machine further comprises a fixed seat and a damping seat, the turnover shaft of the turnover frame is rotatably arranged on the fixed seat, and the fixed seat is mounted on the frame through the damping seat.

The PCB production equipment provided by the invention comprises a board loading machine, SMT (surface mount technology) chip mounting equipment and any one of the turnover machines, wherein the feeding side and the discharging side of the turnover machine are respectively connected with the board loading machine and the SMT chip mounting equipment, and a product to be turned is a PCB.

The turnover mechanism provided by the invention comprises a turnover frame, a conveying device and a fixing device, wherein the conveying device and the fixing device are arranged on the turnover frame; the turnover frame can be driven by the power device to turn over 180 degrees along the turnover shaft of the turnover frame, so that the product to be turned over on the conveying track is driven to turn over; compared with the existing manual turnover operation, the automatic turnover machine has the advantages of high production efficiency, time and labor saving, production cost reduction and creation of conditions for realizing automatic production.

After the turnover mechanism and the PCB production equipment provided by the invention adopt the turnover mechanism, the mechanical turnover of a product is conveniently and quickly realized, the production efficiency is improved, and the automatic production can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a turnover mechanism provided in an embodiment of the present invention;

FIG. 2 is a schematic view showing a state where the turnover mechanism holds the PCB;

FIG. 3 is a schematic perspective view of a first viewing angle of a tilter according to an embodiment of the present invention;

fig. 4 is a perspective view of the flipping machine from a second perspective.

In the figure 1, a roll-over stand; 11. a turning shaft; 2. a conveying device; 21. a drive device; 22. a conveying track; 221. a first transfer rail; 222. a second transfer rail; 223. a width adjustment device; 2231. a movable block; 2232. a guide bar; 2233. adjusting the screw rod; 2234. adjusting the nut; 2235. adjusting a hand wheel; 3. a fixing device; 4. an in-place detection sensor; 5. a feed detection sensor;

100. a turnover mechanism; 200. a frame; 300. turning over a motor; 400. a fixed seat; 500. a shock absorbing seat; 600. and (7) a PCB board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a turnover mechanism 100, which comprises a turnover frame 1, a conveying device 2 and a fixing device 3, wherein the conveying device 2 and the fixing device 3 are both arranged on the turnover frame 1, the conveying device 2 comprises a driving device 21 and a conveying rail 22, the conveying rail 22 has a first end and a second end, and the fixing device 3 is installed near the second end; the product to be turned can enter from the first end of the conveying track 22 and be conveyed to the second end to be positioned and fixed by the fixing device 3; the roll-over stand 1 can be driven by the power device to turn over 180 degrees along the roll-over shaft 11, so as to drive the product to be turned over on the conveying track 22 to realize turn-over.

The product to be overturned enters from the first end of the conveying track 22 of the conveying device 2 and is conveyed to the second end of the conveying track 22 so as to be positioned and fixed by the fixing device 3; the turnover frame 1 can be driven by the power device to turn over 180 degrees along the turnover shaft 11, so that a product to be turned over on the conveying track 22 is driven to be turned over.

As an alternative embodiment, the conveying track 22 comprises a first conveying track 221 and a second conveying track 222 symmetrically arranged on the turnover frame 1, and the product to be turned is clamped between the first conveying track 221 and the second conveying track 222; the fixing device 3 is mounted on the first conveying rail 221 or the second conveying rail 222.

The first conveying rail 221 and the second conveying rail 222 which are symmetrically arranged on the turnover frame 1 are used for conveying products to be turned over, compared with a mode of one conveying rail, the turnover frame is high in reliability, and conditions are created for adjusting the width of the conveying rail 22.

As an alternative embodiment, the first conveying rail 221 is fixedly mounted to the roll-over stand 1 and the second conveying rail 222 is slidably mounted to the roll-over stand 1. The second conveying rail 222 is slidably disposed, and the width distance between the second conveying rail 222 and the first conveying rail 221 can be adjusted, so that the turnover device is suitable for products to be turned over with different sizes.

As an alternative embodiment, the conveying track 22 further comprises a width adjusting device 223, and the second conveying track 222 is slidably arranged on the roll-over stand 1 through the width adjusting device 223.

As an optional embodiment, the width adjusting device 223 includes a movable block 2231, a guide rod 2232, an adjusting screw rod 2233, an adjusting nut 2234 and an adjusting hand wheel 2235, the roll-over stand 1 is U-shaped, the guide rod 2232 spans and is fixed on two side wall surfaces of the roll-over stand 1, the adjusting nut 2234 is fixedly connected with the movable block 2231, one end of the adjusting screw rod 2233 is in transmission connection with the movable block 2231 through the adjusting nut 2234, and the other end of the adjusting screw rod 2233 passes through the roll-over stand 1 and is connected with the adjusting hand wheel 2235; the second transfer rail 222 is mounted to the movable block 2231, and the movable block 2231 is slidably disposed on the guide bar 2232.

When the width of the conveying track 22 needs to be adjusted, firstly, the adjusting hand wheel 2235 is rotated, the adjusting screw rod 2233 rotates and drives the adjusting nut 2234 to move so as to drive the movable block 2231 to slide along the guide rod 2232, and the second conveying track 222 fixed on the movable block 2231 moves along with the adjusting hand wheel, so that the width between the first conveying track 221 and the second conveying track 222 can be adjusted, the transmission is stable and reliable, the adjustment is convenient, and the width-adjustable conveying track can adapt to products to be turned over with various widths.

As an alternative embodiment, the first conveying rail 221 and the second conveying rail 222 each include two conveying belts arranged at an upper and a lower interval, and the product to be turned is conveyed by the friction force of the conveying belts.

The upper and lower conveyor belts rotate reversely to act on the product to be turned from the upper and lower directions, so that the conveying is realized. Is more suitable for conveying flat products to be overturned. The 5mm wide flat belt is divided into an upper layer and a lower layer, and the distance between the two layers is about 2mm, so that the PCB 600 can be clamped to move back and forth.

As an alternative embodiment, the fixing device 3 is a fixing cylinder, and an extending shaft of the fixing cylinder can abut against the product to be turned. Fixed through fixed cylinder, reaction rate is fast, and efficiency is higher.

As an alternative embodiment, the turnover mechanism 100 further includes a controller and a detection device in signal connection therewith, and the driving device 21 is in signal connection with the controller. In the present embodiment, the driving device 21 is a conveying motor.

As an alternative embodiment, the detection device comprises an in-place detection sensor 4 and a feeding detection sensor 5, wherein the in-place detection sensor 4 is arranged at a position of the roll-over stand 1 close to the second end; the feeding detection sensor 5 is arranged at the position of the roll-over stand 1 close to the first end.

As shown in fig. 3 and 4, the present invention provides a turnover machine, which comprises a frame 200, a turnover motor 300 as a power device, a transmission mechanism and any one of the turnover mechanisms 100, wherein the turnover motor 300 is in transmission connection with the turnover mechanism 100 through the transmission mechanism, so as to drive the turnover mechanism 100 to turn over on the frame 200 for 180 °. The turnover motor 300 drives the synchronous belt to rotate, and the synchronous belt is in transmission connection with the turnover mechanism 100. The PCB 600 is fixed in the turnover mechanism 100, and the PCB 600 is not affected by any external force during turnover, so that the PCB 600 is not damaged.

In the embodiment, the conveying motor, the turnover motor 300, the feeding detection sensor 5 for detecting signals and the in-place detection sensor 4 (ohm dragon E3Z-LL61) belong to outsourcing parts.

As an optional implementation mode, the tilter further comprises a fixed seat 400 and a shock absorption seat 500, the overturning shaft 11 of the tilter 1 is rotatably arranged on the fixed seat 400, and the fixed seat 400 is mounted on the frame 200 through the shock absorption seat 500. The damper 500 is made of an elastic damping material, and can absorb the vibration potential energy in the overturning process, reduce the influence of vibration on the overturning mechanism 100, and reduce vibration noise.

The invention provides PCB production equipment which comprises a board loading machine, SMT (surface mount technology) chip mounting equipment and any one of the turnover machines, wherein the feeding side and the discharging side of the turnover machine are respectively connected with the board loading machine and the SMT chip mounting equipment, and a product to be turned is a PCB 600.

Specifically, put the upset machine between trigger and SMT paster equipment, the running signal of upset machine and the last trigger of previous and the SMT paster of next communicate each other, whether there is the material on 4 automated inspection delivery track 22 of detection sensor that target in place after the equipment starts, output signal gives the host computer when there is not the material, go up the trigger and carry a PCB board 600 and give upset machine track feed inlet, feeding detection sensor 5 detects and starts the conveying motor after having PCB board 600, PCB board 600 is carried along delivery track 22, PCB board 600 is carried delivery track 22's the other end. After target in place, the PCB 600 is identified by the in-place detection sensor 4, then the extension shaft of the PCB fixing cylinder extends out to support the PCB 600 for positioning, the turnover motor 300 runs after positioning is completed, the turnover mechanism 100 is driven to rotate by 180 degrees integrally, the PCB 600 synchronously realizes 180-degree turnover after rotation is completed, the feeding and discharging of the rails are exchanged, then the PCB fixing cylinder is loosened, the conveying motor reversely runs after loosening is completed to send the PCB 600 out to be butted with the lower SMT chip mounter rails, and the PCB 600 flows into the chip mounter. At the moment, a completion signal is sent to an upper board loading machine again, the upper board loading machine conveys a PCB again to a rail feed inlet of the turnover machine, a conveying motor is started after a feeding detection sensor 5 detects that a board 600 exists, a conveying rail 22 runs, the PCB 600 is conveyed to the other end along the conveying rail 22, the PCB 600 is identified by a target-in-place detection sensor 4 after the target-in-place detection sensor is in place, then a PCB fixing cylinder stretches out to support the PCB 600 for positioning, and the PCB is overturned fully automatically. The width adjusting device 223 can adjust the width of the conveying track 22 to realize specification conversion.

After the turnover mechanism 100 is adopted by PCB production equipment, the mechanical turnover of a product is conveniently and quickly realized, the production efficiency is improved, and the automatic production can be realized.

In the description of the invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A turnover mechanism is characterized by comprising a turnover frame (1), a conveying device (2) and a fixing device (3), wherein the conveying device (2) and the fixing device (3) are both arranged on the turnover frame (1), the conveying device (2) comprises a driving device (21) and a conveying track (22), the conveying track (22) is provided with a first end and a second end, and the fixing device (3) is arranged at the position close to the second end; the product to be overturned can enter from the first end of the conveying track (22) and is conveyed to the second end to be positioned and fixed by the fixing device (3); the turnover frame (1) can be driven by a power device to turn over 180 degrees along the turnover shaft (11) of the turnover frame, so that a product to be turned over on the conveying track (22) is driven to turn over.

2. The turning mechanism according to claim 1, characterized in that said conveying track (22) comprises a first conveying rail (221) and a second conveying rail (222) symmetrically arranged on said turning frame (1), the products to be turned being clamped between said first conveying rail (221) and said second conveying rail (222); the fixing device (3) is mounted on the first conveying rail (221) or the second conveying rail (222).

3. A turnover mechanism as claimed in claim 2 in which the first conveyor rail (221) is fixedly mounted to the turnover frame (1) and the second conveyor rail (222) is slidably mounted to the turnover frame (1).

4. A turnover mechanism according to claim 3 characterised in that the conveying track (22) further comprises a width adjustment device (223), by means of which width adjustment device (223) the second conveying rail (222) is slidably arranged to the turnover frame (1).

5. The turnover mechanism of claim 4, wherein the width adjusting device (223) comprises a movable block (2231), a guide rod (2232), an adjusting screw rod (2233), an adjusting nut (2234) and an adjusting hand wheel (2235), the turnover frame (1) is U-shaped, the guide rod (2232) spans across and is fixed on two side wall surfaces of the turnover frame (1), and the adjusting nut (2234) is fixedly connected with the movable block (2231); one end of the adjusting screw rod (2233) is in transmission connection with the movable block (2231) through the adjusting nut (2234), and the other end of the adjusting screw rod (2233) passes through the roll-over stand (1) to be connected with the adjusting hand wheel (2235); the second conveying rail (222) is mounted on the movable block (2231), and the movable block (2231) is slidably disposed on the guide rod (2232).

6. The turning mechanism according to claim 2, characterized in that the first conveyor rail (221) and the second conveyor rail (222) each comprise two conveyors arranged at an upper and a lower interval, and the product to be turned is transported by the friction force of the two conveyors.

7. A turning mechanism according to claim 1, characterised in that the fixing means (3) is a fixed cylinder, the projecting shaft of which can abut against the product to be turned.

8. A turnover mechanism as claimed in any one of claims 1 to 7 further including a controller and detection means in signal communication therewith, the drive means (21) being in signal communication with the controller.

9. The turning mechanism according to claim 8, characterized in that the detection means comprise an in-position detection sensor (4) and a feed detection sensor (5), the in-position detection sensor (4) being arranged at a position of the turning frame (1) near the second end; the feeding detection sensor (5) is arranged at a position, close to the first end, of the turnover frame (1).

10. A turnover machine, characterized by comprising a frame (200), a turnover motor (300) as the power device, a transmission mechanism and the turnover mechanism (100) as claimed in any one of claims 1 to 8, wherein the turnover motor (300) is in transmission connection with the turnover mechanism (100) through the transmission mechanism, so as to drive the turnover mechanism (100) to turn over on the frame (200) for 180 degrees.

11. The tilter according to claim 10, further comprising a fixed seat (400) and a shock absorption seat (500), wherein the tilting shaft (11) of the tilting frame (1) is rotatably arranged on the fixed seat (400), and the fixed seat (400) is mounted on the frame (200) through the shock absorption seat (500).

12. A PCB production apparatus, comprising a board loading machine, an SMT sheet mounting apparatus and the flipping machine of claim 10 or 11, wherein the loading side and the unloading side of the flipping machine are respectively connected to the board loading machine and the SMT sheet mounting apparatus, and the product to be flipped is a PCB (600).