SMT (Surface Mount Technology) patch mistake-proofing device

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to an SMT patch material error prevention device which comprises a base plate and a belt conveyor, the belt conveyor is fixedly installed at the top end of the base plate, installation assemblies which are distributed at equal intervals are fixedly installed on a conveying belt of the belt conveyor, a detection assembly is arranged in the middle of the top end of the base plate, and the detection assembly is fixedly installed on the base plate. The detection assembly comprises a shell fixedly connected to the middle of the top end of the base plate, racks are symmetrically arranged in the shell, and a carrying part is connected between the top ends of the two racks in an engaged mode. According to the utility model, under the driving of the driving part, the carrying part drives the detection camera and the corresponding mounting assembly to synchronously move forwards, the detection camera shoots the PCB in the mounting assembly, and when the detection camera moves forwards for a certain distance, the detection camera automatically returns backwards to detect the next mounting assembly, and in the detection process, the detection efficiency is greatly improved. The belt conveyor does not need to be started or stopped, and detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection device, specifically related to a kind of SMT patch mistake-proof material device. BACKGROUND

[0002] SMT is surface assembly technology, is called surface mount or surface mounting technology, it is the most popular technology and process in current electronic assembly industry, SMT patch needs corresponding electric device patch in corresponding tin paste position, to prepare for next tin soldering, to avoid patching mistake before tin soldering after patching, detection device needs to be used to detect the PCB after patching.

[0003] Detection device is generally detection camera, compares by photographing PCB with standard piece, to find mistake position, the camera of detection device generally used is fixed, when PCB is conveyed to the bottom of camera, it needs to stop conveying, then photographing, this detection mode needs to start and stop conveyor regularly, and component affects detection efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of SMT patch mistake-proof material device, it does not need to start and stop belt conveyor in detection process, improves detection efficiency, to solve the problems presented in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of SMT patch mistake-proof material device, including substrate and belt conveyor, the belt conveyor is fixedly installed at the top of substrate, equidistantly distributed mounting assembly is fixedly installed on the conveying belt of belt conveyor, the middle part of the top of substrate is provided with detection assembly, the detection assembly includes the shell fixedly connected in the middle part of the top of substrate, the inside of shell is provided with rack, the top between the two rack is engagedly connected with carrying part, the bottom of carrying part is fixedly installed with detection camera, the top of the inside of shell is provided with the driving part for driving carrying part moves along rack, one side of the inner wall of shell is provided with buffer part.

[0006] Further, the mounting assembly includes mounting strip fixedly connected on the conveying belt of belt conveyor, one side of the mounting strip is fixedly connected with carrier plate, one end of the carrier plate is fixedly connected with support plate symmetrically, one side of the support plate is in contact with the conveying belt of belt conveyor.

[0007] Further, the carrying part includes rotating roller, the rotating roller has two, the middle part of the rotating roller is provided with annular groove, the inside of annular groove is provided with bearing, the outer wall of bearing is fixedly connected with cylinder, connecting plate is fixedly connected between the two cylinders.

[0008] Further, the first transmission belt is provided between the two rotating rollers, the two rotating rollers are drivingly connected through the first transmission belt, and the outer wall of the first transmission belt is provided with uniformly distributed first teeth.

[0009] Further, the driving component comprises two correspondingly arranged transmission rollers, a second transmission belt is drivingly connected between the two transmission rollers, the outer wall of the second transmission belt is provided with two groups of teeth, each group of teeth comprises a plurality of equidistantly distributed second teeth, the second teeth are in meshing connection with the first teeth, the outer wall of the shell is fixedly connected with a speed reducer, and one end of the transmission roller is fixedly connected with an output shaft of the speed reducer.

[0010] Further, the buffer component comprises an outer cylinder fixedly connected to one end of the inner wall of the shell, the piston head is slidingly connected to the inside of the outer cylinder, the piston head is fixedly connected with a connecting rod at one end, the piston head is fixedly connected with a spring at the other end, one end of the spring is fixedly connected with the inner wall of the shell, and the side wall of the outer cylinder is provided with a gas hole.

[0011] Further, one end of the connecting rod is fixedly connected with one end of the connecting end head.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: under the driving of the driving component, the carrying component drives the detection camera and the corresponding mounting assembly to move forward synchronously, the detection camera photographs the PCB in the mounting assembly, after the detection camera moves forward by a certain distance, the detection camera returns to the original position automatically, and the next mounting assembly is detected, in the detection process, the belt conveyor does not need to be started and stopped, and the detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 It is a front view of the utility model;

[0016] Figure 4 It is a schematic view of the internal structure of the shell of the utility model.

[0017] In the drawings, the component list represented by each sign is as follows:

[0018] 1, substrate; 2, belt conveyor; 3, mounting assembly; 31, mounting strip; 32, carrier plate; 33, support plate; 4, detection assembly; 41, shell; 42, rack; 43, carrying part; 431, rotating roller; 432, bearing; 433, cylinder; 434, connecting plate; 435, first conveyor belt; 436, first tooth; 437, connecting end; 44, driving part; 441, conveying roller; 442, second conveyor belt; 443, second tooth; 444, speed reducer motor; 45, buffer part; 451, outer cylinder; 452, piston head; 453, connecting rod; 454, spring; 455, air hole; 46, detection camera. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the utility model more clear and apparent, the following will specifically describe the utility model with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0020] As shown in Figures 1-3 A kind of SMT patch mistake-proof material device, including substrate 1 and belt conveyor 2, belt conveyor 2 is fixedly installed at the top of substrate 1, equidistantly distributed mounting assembly 3 is fixedly installed on the conveying belt of belt conveyor 2, the middle part of the top of substrate 1 is provided with detection assembly 4, detection assembly 4 includes the shell 41 fixedly connected at the middle part of the top of substrate 1, rack 42 is symmetrically arranged in the inside of shell 41, carrying part 43 is engagedly connected between the top of two racks 42, detection camera 46 is fixedly installed at the bottom of carrying part 43, the top of the inside of shell 41 is provided with driving part 44 for driving carrying part 43 to move along rack 42, buffer part 45 is arranged on one side of the inner wall of shell 41.

[0021] According to the above structure, when using, the PCB board after patching is placed on mounting assembly 3 in turn and is conveyed forward along with belt conveyor 2, while carrying part 43 drives detection camera 46 to move forward synchronously with corresponding mounting assembly 3 under the drive of driving part 44, detection camera 46 photographs the PCB board in mounting assembly 3, detection camera 46 is electrically connected with the computer of external device, and the computer compares and processes whether the parts on the photographed picture are wrongly pasted, after detection camera 46 moves a certain distance forward, it is automatically returned to detect the next mounting assembly 3.

[0022] As shown in Figure 3 Mounting assembly 3 includes mounting strip 31 fixedly connected on the conveying belt of belt conveyor 2, one side of mounting strip 31 is fixedly connected with carrier plate 32, one end of carrier plate 32 is fixedly connected with support plate 33 symmetrically, and one side of support plate 33 is in contact with the conveying belt of belt conveyor 2.

[0023] According to the above structure, the PCB board is placed inside the carrier plate 32 during installation, and the carrier plate 32 moves forward with the conveyor belt of the belt conveyor 2.

[0024] As shown in Figure 4 The carrying part 43 includes two rotating rollers 431, the middle part of the rotating roller 431 is provided with an annular groove, the inside of the annular groove is provided with a bearing 432, the outer wall of the bearing 432 is fixedly connected with a cylinder 433, the two cylinders 433 are fixedly connected with a connecting plate 434, a first conveyor belt 435 is arranged between the two rotating rollers 431, the two rotating rollers 431 are drivingly connected through the first conveyor belt 435, the outer wall of the first conveyor belt 435 is provided with uniformly distributed first teeth 436, the first teeth 436 are in meshing connection with the rack 42, the driving part 44 includes two corresponding transmission rollers 441, the two transmission rollers 441 are drivingly connected with a second conveyor belt 442, the outer wall of the second conveyor belt 442 is provided with two groups of teeth, each group of teeth includes a plurality of second teeth 443 distributed at equal intervals, the second teeth 443 are in meshing connection with the first teeth 436, the outer wall of the shell 41 is fixedly connected with a speed reducer 444, and the output shaft of the speed reducer 444 is fixedly connected with one end of one of the transmission rollers 441.

[0025] According to the above structure, the transmission roller 441 is driven to rotate by the speed reducer 444, and then the second conveyor belt 442 is driven to rotate, after the second conveyor belt 442 rotates, one group of second teeth 443 on the outer wall of the second conveyor belt 442 meshes with the first teeth 436 on the outer wall of the first conveyor belt 435, and drives the first conveyor belt 435 to rotate, so that the first conveyor belt 435 moves forward along the rack 42, when the last second tooth 443 of the group of second teeth 443 is separated from the first teeth 436, the first teeth 436 lose connection with the second teeth 443, at this time, the carrying part 43 is returned to reset under the pushing of the buffer part 45, when the next group of second teeth 443 rotates to correspond to the first teeth 436, the carrying part 43 is driven to move forward again.

[0026] As shown in Figure 4 The buffer part 45 includes an outer cylinder 451 fixedly connected to one end of the inner wall of the shell 41, the inner part of the outer cylinder 451 is slidingly connected with a piston head 452, one end of the piston head 452 is fixedly connected with a connecting rod 453, the other end of the piston head 452 is fixedly connected with a spring 454, one end of the spring 454 is fixedly connected with the inner wall of the shell 41, the side wall of the outer cylinder 451 is provided with a gas hole 455, the side wall of one of the cylinders 433 is fixedly connected with a connecting end 437, and one end of the connecting rod 453 is fixedly connected with one end of the connecting end 437.

[0027] According to the above structure, when the carrying part 43 moves forward, the connecting rod 453 and the piston head 452 move left, and the spring 454 is compressed, and after the first tooth 436 and the second tooth 443 are disconnected, the carrying part 43 returns right under the pushing of the spring 454, and because the outer wall of the outer cylinder 451 is provided with only one air hole 455, the air inlet is slow, so the speed of the piston head 452 and the connecting rod 453 pushing the carrying part 43 to return is low, avoiding vibration impact caused by the fast return of the carrying part 43.

[0028] The working principle of the utility model is as follows: when using, the PCB board after pasting is placed on the installation assembly 3 in turn and is conveyed forward by the belt conveyor 2, and under the driving of the driving part 44, the carrying part 43 drives the detection camera 46 to move forward synchronously with the corresponding installation assembly 3, the detection camera 46 shoots the PCB board in the installation assembly 3, the detection camera 46 is electrically connected with the computer of external device, the computer compares and processes whether the parts on the shooting picture are pasted wrongly, after the detection camera 46 moves forward by a certain distance, it returns automatically to detect the next installation assembly 3, when installing, the PCB board is placed in the inside of the carrier plate 32, the carrier plate 32 moves forward with the conveying belt of the belt conveyor 2, the conveying roller 441 is driven to rotate by the reduction motor 444, and then the second conveying belt 442 is driven to rotate, after the second conveying belt 442 rotates, one group of second teeth 443 on the outer wall of the second conveying belt 442 engages with the first tooth 436 on the outer wall of the first conveying belt 435, drives the first conveying belt 435 to rotate, thereby driving the first conveying belt 435 to move forward along the rack 42, when the end second tooth 443 of one group of second teeth 443 is separated from the first tooth 436, the first tooth 436 and the second tooth 443 lose connection, at this time, the carrying part 43 returns and resets as a whole under the pushing of the buffer part 45, when the next group of second teeth 443 rotates to correspond to the first tooth 436, the carrying part 43 is driven to move forward again, when the carrying part 43 moves forward, the connecting rod 453 and the piston head 452 move left, and the spring 454 is compressed, and after the first tooth 436 and the second tooth 443 are disconnected, the carrying part 43 returns right as a whole under the pushing of the spring 454, and because the outer wall of the outer cylinder 451 is provided with only one air hole 455, the air inlet is slow, so the speed of the piston head 452 and the connecting rod 453 pushing the carrying part 43 to return is low, avoiding vibration impact caused by the fast return of the carrying part 43.

[0029] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. An SMT pick-and-place error-proofing device, comprising a base plate (1) and a belt conveyor (2), characterized in that: The belt conveyor (2) is fixedly installed at the top end of the base plate (1), equidistantly distributed mounting assemblies (3) are fixedly installed on the conveying belt of the belt conveyor (2), a detection assembly (4) is arranged at the middle of the top end of the base plate (1), the detection assembly (4) comprises an outer shell (41) fixedly connected to the middle of the top end of the base plate (1), symmetrical racks (42) are arranged inside the outer shell (41), a carrying part (43) is engagedly connected between the top ends of the two racks (42), a detection camera (46) is fixedly installed at the bottom of the carrying part (43), a driving part (44) for driving the carrying part (43) to move along the rack (42) is arranged at the top of the inner side of the outer shell (41), and a buffer part (45) is arranged on one side of the inner wall of the outer shell (41).

2. The SMT patch mistake-proofing device according to claim 1, characterized in that: The mounting assembly (3) comprises a mounting strip (31) fixedly connected to the conveying belt of the belt conveyor (2), a load plate (32) is fixedly connected to one side of the mounting strip (31), symmetrical support plates (33) are fixedly connected to one end of the load plate (32), and one side of the support plate (33) is in contact connection with the conveying belt of the belt conveyor (2).

3. The SMT patch mistake-proofing device according to claim 2, characterized in that: The carrying part (43) comprises two rotating rollers (431), the middle part of each rotating roller (431) is provided with an annular groove, a bearing (432) is arranged in the annular groove, a cylinder (433) is fixedly connected to the outer wall of the bearing (432), and a connecting plate (434) is fixedly connected between the two cylinders (433).

4. The SMT patch mistake-proofing device according to claim 3, characterized in that: First conveying belts (435) are arranged between the two rotating rollers (431) and drive-connected to the two rotating rollers (431), and the outer wall of each first conveying belt (435) is provided with uniformly distributed first teeth (436) in meshing connection with the rack (42).

5. The SMT patch mistake-proofing device according to claim 4, characterized in that: The driving part (44) comprises two correspondingly arranged conveying rollers (441), a second conveying belt (442) is drive-connected between the two conveying rollers (441), the outer wall of the second conveying belt (442) is provided with two groups of teeth, each group of teeth comprises a plurality of equidistantly distributed second teeth (443) in meshing connection with the first teeth (436), a reduction motor (444) is fixedly connected to the outer wall of the outer shell (41), and the output shaft of the reduction motor (444) is fixedly connected to one end of one of the conveying rollers (441).

6. The SMT patch mistake-proofing device according to claim 5, characterized in that: The buffer part (45) comprises an outer cylinder (451) fixedly connected to one end of the inner wall of the outer shell (41), a piston head (452) is slidably connected to the inside of the outer cylinder (451), a connecting rod (453) is fixedly connected to one end of the piston head (452), a spring (454) is fixedly connected to the other end of the piston head (452), one end of the spring (454) is fixedly connected to the inner wall of the outer shell (41), and a gas hole (455) is arranged on the side wall of the outer cylinder (451).

7. The SMT patch mistake-proofing device according to claim 6, characterized in that: One side wall of the cylinder (433) is fixedly connected with a connecting end (437), and one end of the connecting rod (453) is fixedly connected with one end of the connecting end (437).

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