An automatic feeding device for a plug hole machine

Abstract

The present invention relates to the field of conveying technology, and specifically discloses an automatic loading device for a plugging machine. The clamping mechanism includes four clamping frames and telescopic members installed on each clamping frame. Card slots are provided on all four clamping frames and can be respectively clamped at the four corners of the circuit board. The four clamping frames are clamping frame one, clamping frame two, clamping frame three, and clamping frame four arranged in sequence. Clamping frame one and clamping frame three can approach or move away from each other. Clamping frame two and clamping frame four can approach or move away from each other. Clamping frame four can rotate axially in the arrangement direction of clamping frame three and clamping frame four. Clamping frame two can rotate axially in the arrangement direction of clamping frame two and clamping frame three. Clamping frame three can rotate axially in the vertical direction. The telescopic member can telescopically move in the up and down direction. The present invention can swap the positions of the circuit boards transferred to the support plate and adjust the circuit boards to the set placement positions.

Description

Technical Field

[0001] The invention relates to the field of conveying technology, and in particular to an automatic feeding device for a plugging machine. Background Art

[0002] Vias are usually required on circuit boards to install electronic components. These components need to be connected to the circuit boards by welding or insertion. There are three types of vias: through holes, blind holes and buried holes. The number and position of vias vary depending on the design structure of the circuit board. In order to prevent short circuits between different circuits on the circuit board, the vias on the circuit board need to be plugged. In addition, plugging can also ensure the stability of electronic components and prevent them from moving or shaking during welding or insertion.

[0003] The patent document with the authorization announcement number CN207283936U discloses a loading and unloading device for processing high thermal conductivity circuit boards, including a front horizontal support plate and a rear horizontal support plate that are arranged in parallel and at the same height, a circuit board moving device is arranged between the front horizontal support plate and the rear horizontal support plate, a feeding conveyor belt and a feeding positioning device are arranged between the front horizontal support plate and the rear horizontal support plate at the feeding end, and a discharging conveyor belt is arranged between the front horizontal support plate and the rear horizontal support plate at the discharging end. The device realizes automatic loading, positioning, conveying, processing, and unloading of circuit board materials, has a high degree of automation, stable and reliable operation, saves labor, improves processing efficiency, and reduces production costs.

[0004] Although the above technical solution can complete the automatic conveying of circuit boards, when the circuit boards are plugged by a plugging machine, the conductive holes on the circuit boards need to be placed in a specific orientation. The above technical solution cannot distinguish between the front and back sides of the circuit boards, and cannot adjust the circuit boards to a specific placement position, which is inconvenient to use. Summary of the invention

[0005] The present invention provides an automatic feeding device for a hole plugging machine, aiming to solve the problems in the related art that the front and back sides of a circuit board cannot be distinguished and the circuit board cannot be adjusted to a specific placement position.

[0006] An automatic feeding device for a plugging machine comprises a shell, a support plate, a clamping mechanism, a conveying mechanism 1 and a conveying mechanism 2, wherein the support plate is fixedly installed in the shell for placing a circuit board, the clamping mechanism comprises four clamping frames and a telescopic member installed on each of the clamping frames, the four clamping frames are provided with a card slot and can be respectively clamped at the four corners of the circuit board, the four clamping frames are respectively clamping frame 1, clamping frame 2, clamping frame 3 and clamping frame 4 which are arranged in sequence, the clamping frame 1 and the clamping frame 3 can approach or move away from each other, the clamping frame 2 and the clamping frame 4 can approach or move away from each other, the clamping frame 1 and the The clamping frame four can be raised and lowered, the clamping frame four can rotate axially with the arrangement direction of the clamping frame three and the clamping frame four as the axial direction, the clamping frame two can rotate axially with the arrangement direction of the clamping frame two and the clamping frame three as the axial direction, the clamping frame three can rotate axially in the vertical direction, the telescopic member can be telescopic in the up and down directions, and the telescopic end of the telescopic member can be inserted into the conductive hole on the circuit board, the conveying mechanism one can convey the circuit board clamped by the clamping frame one and the clamping frame two to the plugging machine, and the conveying mechanism two can convey the circuit board clamped by the clamping frame three and the clamping frame four to the plugging machine.

[0007] The beneficial effects of the present invention are as follows: the present invention can replace the position of the circuit board transferred to the support plate so that the conductive holes are all in the same position, and finally the circuit board is transported to the plugging machine through the conveying mechanism one and the conveying mechanism two respectively, so that the device can adjust the circuit board to the set placement position.

[0008] Preferably, a driving assembly is provided at the bottom of the shell, and the driving assembly includes two sliders 1, a threaded rod 1, two sliders 2 and a threaded rod 2, the two sliders 1 are respectively connected to the clamping frame 1 and the clamping frame 3, the threaded rod 1 is rotatably connected to the shell, the length direction of the threaded rod 1 is in the same direction as the arrangement direction of the clamping frame 1 and the clamping frame 3, the two sliders 1 are both threadedly connected to the threaded rod 1, and when the threaded rod 1 rotates, the two sliders 1 can be made to approach or move away from each other, and the clamping frame 1 and the clamping frame 3 can be made to approach or move away from each other, the two sliders 2 are respectively connected to the clamping frame 2 and the clamping frame 4, the threaded rod 2 is rotatably connected to the shell, the length direction of the threaded rod 2 is in the same direction as the arrangement direction of the clamping frame 2 and the clamping frame 4, the two sliders 2 are both threadedly connected to the threaded rod 2, and when the threaded rod 2 rotates, the two sliders 2 can be made to approach or move away from each other, and the clamping frame 2 and the clamping frame 4 can be made to approach or move away from each other.

[0009] Preferably, gear one is fixedly mounted on the threaded rod one, gear two is fixedly mounted on the threaded rod two, gear two is meshed with gear one, and driving member one is fixedly mounted on the shell, and driving member one can drive threaded rod one or threaded rod two to rotate.

[0010] Preferably, a telescopic driving member is provided between the clamping frame 1 and the connected slider 1, and the upper and lower ends of the telescopic driving member are respectively fixedly connected to the clamping frame 1 and the slider 1, and the telescopic member installed on the clamping frame 1 is located at the upper part of the card slot, and its telescopic end faces downward, which has the effect that: a corner of the circuit board is inserted into the card slot of the clamping frame 1, and when the set conductive hole corresponds to the telescopic member, the telescopic member is controlled to extend so that the telescopic end is inserted into the corresponding conductive hole, and the circuit board and the clamping frame 1 can move synchronously.

[0011] Preferably, a driving member 2 is installed on the sliding block 2 connected to the clamping frame 2, and the driving member 2 can drive the clamping frame 2 to rotate. The telescopic member installed on the clamping frame 2 is located at the lower part of the card slot, and its telescopic end faces upward, which has the effect of: one corner of the circuit board is inserted into the card slot of the clamping frame 2, and when the set conductive hole corresponds to the telescopic member, the telescopic member is controlled to extend so that its telescopic end is inserted into the corresponding conductive hole, at which time the circuit board and the clamping frame 2 can move synchronously.

[0012] Preferably, a driving member three is installed on the slider one connected to the clamping frame three, and the driving member three can drive the clamping frame three to rotate. The telescopic member installed on the clamping frame three is located at the upper part of the card slot, and its telescopic end faces downward, which has the effect of: one corner of the circuit board is inserted into the card slot of the clamping frame three, and when the set conductive hole corresponds to the telescopic member, the telescopic member is controlled to extend so that its telescopic end is inserted into the corresponding conductive hole, at which time the circuit board and the clamping frame three can move synchronously.

[0013] Preferably, a telescopic driving member 2 is provided between the clamping frame 4 and the connected slider 2, the lower end of the telescopic driving member 2 is fixedly connected to the slider 2, and the upper end is rotatably connected to the clamping frame 4, and a driving member 4 for driving the clamping frame 4 to rotate is provided at the upper end of the telescopic driving member 2, and the telescopic member installed on the clamping frame 4 is located at the lower part of the slot, and its telescopic end faces upward, which has the effect of: one corner of the circuit board is inserted into the slot of the clamping frame 4, and when the set conducting hole corresponds to the telescopic member, the telescopic member is controlled to extend so that its telescopic end is inserted into the corresponding conducting hole, at which time the circuit board and the clamping frame 4 can move synchronously.

[0014] Preferably, the conveying mechanism 1 includes a plurality of conveying rollers 1 installed on the shell, the arrangement direction of the plurality of conveying rollers 1 is in the same direction as the arrangement direction of the clamping frame 1 and the clamping frame 2, and the upper end height of the conveying roller 1 is consistent with the bottom height of the card slot on the clamping frame 2.

[0015] Preferably, the conveying mechanism 2 includes two conveying components, and the arrangement direction of the two conveying components is the same as the arrangement direction of the clamping frame 1 and the clamping frame 4. The conveying component is located above the conveying mechanism 1. The conveying component includes multiple conveying rollers 2, and the arrangement direction of the multiple conveying rollers 2 is the same as the arrangement direction of the multiple conveying rollers 1. The conveying rollers 2 can move along the arrangement direction of the multiple conveying rollers 2.

[0016] Preferably, the conveying assembly also includes a conveying frame, two guide rods and a plurality of support rods, the conveying frame is fixedly connected to the shell, the arrangement direction of the two guide rods is the same as the arrangement direction of the two conveying assemblies, and both are fixedly connected to the conveying frame, the axial direction of the guide rod is the same as the arrangement direction of the plurality of conveying rollers 2, the guide rod is provided with a variable pitch thread groove, and the pitch of the variable pitch thread groove gradually decreases as it moves away from the clamping frame 1, the arrangement direction of the plurality of support rods is the same as the arrangement direction of the plurality of conveying rollers 2, and the two ends of the support rod are respectively slidably mounted on the outer peripheral side of the guide rod, the support rod is provided with a clamping block, the clamping block is slidably fitted in the variable pitch thread groove, and the plurality of conveying rollers 2 are rotatably installed on the plurality of support rods in a one-to-one correspondence.

[0017] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: the present invention can replace the position of the circuit board transferred to the support plate through four clamping frames and the telescopic parts arranged on each clamping frame, so that the conductive holes are all in the same position, and finally the circuit board is transported to the plugging machine through the conveying mechanism one and the conveying mechanism two respectively, so that the device can distinguish the front and back sides of the circuit board, and at the same time can adjust the circuit board to the set placement position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the top cross-sectional structure of the present invention.

[0020] Figure 3 It is another schematic diagram of a top cross-sectional structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation structure of four clamping frames of the present invention.

[0022] Figure 5This is a schematic structural diagram of the conveying component of the present invention.

[0023] Reference numerals:

[0024] 1. Housing; 11. Vertical plate; 12. Transfer component; 13. First chute; 14. Second chute;

[0025] 2. Support plate; 31. First clamping frame; 311. First telescopic member; 32. Second clamping frame; 33. Third clamping frame; 331. Third telescopic member; 34. Fourth clamping frame; 341. Fourth telescopic member; 35. Sleeve; 36. Rotating shaft; 37. Fixed block; 4. First conveying roller;

[0026] 51. Second conveying roller; 52. Conveying frame; 53. Guide rod; 531. Variable pitch thread groove; 54. Support rod; 61. First slider; 62. Second slider; 63. First threaded rod; 64. Second threaded rod; 65. First gear; 66. Second gear; 7. Card slot;

[0027] 81. First telescopic driving member; 82. Second driving member; 83. Second telescopic driving member; 84. Fourth driving member;

[0028] 9. Circuit board. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0030] As Figures 1 to 5 shown, the automatic loading device of the plugging machine in the embodiment of the present invention includes a housing 1, a support plate 2, a clamping mechanism, a first conveying mechanism and a second conveying mechanism. For the convenience of understanding, the length direction of the housing 1 is defined as the left - right direction, and the width direction of the housing 1 is defined as the front - back direction.

[0031] As Figure 2 and Figure 3 shown, the support plate 2 is fixedly installed in the housing 1 for placing the circuit board 9. Specifically, a vertical plate 11 is fixedly installed at the bottom inside the housing 1. The length direction of the vertical plate 11 extends along the left - right direction. The support plate 2 is horizontally and fixedly installed on the upper part of the vertical plate 11. The support plate 2 is of a square structure and has notches at its four corners. A transfer component 12 is also provided inside the housing 1. The transfer component 12 can sequentially transfer the stacked circuit boards 9 to the upper part of the support plate 2. When the circuit board 9 is placed on the support plate 2, the four corners of the circuit board 9 are respectively located at the notches at the four corners of the support plate 2.

[0032] As Figure 2 and Figure 3As shown, the clamping mechanism includes four clamping brackets and telescopic members mounted on each clamping bracket. Claw slots 7 are provided on all four clamping brackets and can be respectively clamped at the four corners of the circuit board 9. The four clamping brackets are successively the first clamping bracket 31, the second clamping bracket 32, the third clamping bracket 33, and the fourth clamping bracket 34. Specifically, the four clamping brackets are respectively arranged at the four notches of the support plate 2. The first clamping bracket 31 is located on the right side of the second clamping bracket 32, and the first clamping bracket 31 is located behind the fourth clamping bracket 34. That is, the first clamping bracket 31 and the second clamping bracket 32 are arranged in the left-right direction, the first clamping bracket 31 and the fourth clamping bracket 34 are arranged in the front-back direction, the first clamping bracket 31 and the third clamping bracket 33 are diagonally arranged, and the second clamping bracket 32 and the fourth clamping bracket 34 are diagonally arranged.

[0033] As Figure 2 and Figure 3 shown, the drive assembly includes two first sliders 61, two second sliders 62, a first threaded rod 63, and a second threaded rod 64.

[0034] The two first sliders 61 are respectively arranged below the first clamping bracket 31 and the third clamping bracket 33 and are respectively connected to the first clamping bracket 31 and the third clamping bracket 33. A first chute 13 is provided at the bottom inside the housing 1. The length direction of the first chute 13 is the same as the arrangement direction of the first clamping bracket 31 and the third clamping bracket 33. The two first sliders 61 are both slidably mounted in the first chute 13. The first threaded rod 63 is rotatably connected to the housing 1 and is arranged in the first chute 13. The length direction of the first threaded rod 63 is the same as the arrangement direction of the first clamping bracket 31 and the third clamping bracket 33. Two threads with opposite spiral directions are provided on the first threaded rod 63. The two first sliders 61 are respectively threadedly connected to the two threads on the first threaded rod 63, so that when the first threaded rod 63 rotates, the two first sliders 61 can approach or move away from each other.

[0035] A first telescopic drive member 81 is provided between the first clamping bracket 31 and the connected first slider 61. The first telescopic drive member 81 can be an electric push rod, and its upper and lower ends are respectively fixedly connected to the first clamping bracket 31 and the first slider 61. By controlling the telescopic movement of the first telescopic drive member 81, the first clamping bracket 31 can be driven to move up and down. The telescopic member mounted on the first clamping bracket 31 is located above the claw slot 7, and this telescopic member is defined as the first telescopic member 311. The first telescopic member 311 can be a cylinder, the cylinder end of its upper part is fixedly connected to the first clamping bracket 31, and the telescopic end of its lower part faces downward. When controlling the first telescopic member 311 to extend, its telescopic end can be inserted into the conduction slot at the corresponding position on the circuit board 9.

[0036] A sleeve 35 is fixedly installed on a first slider 61 connected to the third clamping bracket 33. A vertically arranged rotating shaft 36 is rotatably installed on the sleeve 35. A third driving member (not shown in the figure) is provided inside the sleeve 35. The third driving member can be a motor, and its output end is fixedly connected to the rotating shaft 36. The third clamping bracket 33 is fixedly installed at the upper end of the rotating shaft 36. By controlling the operation of the third driving member, the rotating shaft 36 and the third clamping bracket 33 can be driven to rotate about the vertical direction as the axis. The telescopic member installed on the third clamping bracket 33 is located above the clamping groove 7. This telescopic member is defined as the third telescopic member 331. The third telescopic member 331 can be a cylinder. The cylinder end of its upper part is fixedly connected to the third clamping bracket 33, and the telescopic end of its lower part faces downward. When controlling the third telescopic member 331 to extend, its telescopic end can be inserted into the conduction groove at the corresponding position on the circuit board 9.

[0037] When driving the two first sliders 61 to approach or move away from each other by controlling the rotation of the first threaded rod 63, the first clamping bracket 31 and the third clamping bracket 33 can be made to approach or move away from each other simultaneously.

[0038] Two second sliders 62 are respectively arranged below the second clamping bracket 32 and the fourth clamping bracket 34 and are respectively connected to the second clamping bracket 32 and the fourth clamping bracket 34. A second sliding groove 14 is provided at the bottom of the housing 1. The length direction of the second sliding groove 14 is the same as the arrangement direction of the second clamping bracket 32 and the fourth clamping bracket 34. The two second sliders 62 are both slidably installed in the second sliding groove 14. The second threaded rod 64 is rotatably connected to the housing 1 and is arranged in the second sliding groove 14. The length direction of the second threaded rod 64 is the same as the arrangement direction of the second clamping bracket 32 and the fourth clamping bracket 34. Two sections of threads with opposite spiral directions are provided on the second threaded rod 64. The two second sliders 62 are respectively threadedly connected to the two sections of threads on the second threaded rod 64, so that when the second threaded rod 64 rotates, the two second sliders 62 can be made to approach or move away from each other.

[0039] A fixed block 37 is fixedly installed on the second slider 62 connected to the second clamping bracket 32. The second clamping bracket 32 is rotatably installed on the fixed block 37, and the second clamping bracket 32 can rotate about the front-rear direction as the axis. A second driving member 82 is fixedly installed on the fixed block 37. The second driving member 82 can be a motor, and its output end is fixedly connected to the second clamping bracket 32. By controlling the operation of the second driving member 82, the second clamping bracket 32 can be driven to rotate. The telescopic member installed on the second clamping bracket 32 is located below the clamping groove 7. This telescopic member is defined as the second telescopic member. The second telescopic member (not shown in the figure) can be a cylinder. The cylinder end of its lower part is fixedly connected to the second clamping bracket 32, and the telescopic end of its upper part faces upward. When controlling the second telescopic member to extend, its telescopic end can be inserted into the conduction groove at the corresponding position on the circuit board 9.

[0040] A second telescopic driving member 83 is provided between the fourth clamping frame 34 and the connected second slider 62. The second telescopic driving member 83 can be an electric push rod, the lower end of which is fixedly connected to the second slider 62, and the upper end is rotatably connected to the fourth clamping frame 34. Moreover, the fourth clamping frame 34 can rotate about the left-right direction as the axis. By controlling the telescopic movement of the second telescopic driving member 83, the fourth clamping frame 34 can be driven to move up and down. A fourth driving member 84 is fixedly installed at the upper end of the second telescopic driving member 83. The fourth driving member 84 can be a motor, and its output end is fixedly connected to the fourth clamping frame 34. By controlling the operation of the fourth driving member 84, the fourth clamping frame 34 can be driven to rotate. The telescopic member installed on the fourth clamping frame 34 is located below the clamping groove 7, and this telescopic member is defined as the fourth telescopic member 341. The fourth telescopic member 341 can be a cylinder, the cylinder end of its lower part is fixedly connected to the fourth clamping frame 34, and the telescopic end of its upper part faces upward. When controlling the fourth telescopic member 341 to extend, its telescopic end can be inserted into the conduction groove at the corresponding position on the circuit board 9.

[0041] When controlling the rotation of the second threaded rod 64 to drive the two second sliders 62 to approach or separate from each other, the second clamping frame 32 and the fourth clamping frame 34 can be made to approach or separate from each other simultaneously.

[0042] In addition, a first gear 65 is fixedly installed on the first threaded rod 63, and a second gear 66 is fixedly installed on the second threaded rod 64. The second gear 66 meshes with the first gear 65. A first driving member (not shown in the figure) is fixedly installed on the housing 1. The first driving member can be a motor, and its output end is fixedly connected to the first threaded rod 63 or the second threaded rod 64. Thus, when controlling the operation of the first driving member, through the meshing of the first gear 65 and the second gear 66, the first threaded rod 63 and the second threaded rod 64 can be driven to rotate simultaneously.

[0043] As Figures 1 to 5 shown, the first conveying mechanism includes a plurality of first conveying rollers 4 installed on the housing 1. The arrangement direction of the plurality of first conveying rollers 4 is the same as the arrangement direction of the first clamping frame 31 and the second clamping frame 32, that is, the plurality of first conveying rollers 4 are arranged along the left-right direction. The upper end height of the first conveying rollers 4 is the same as the bottom surface height of the clamping groove 7 on the second clamping frame 32. A first driving unit (not shown in the figure) for driving the plurality of first conveying rollers 4 to rotate is further provided on the housing 1, so that the first conveying mechanism can convey the circuit board 9 clamped by the first clamping frame 31 and the second clamping frame 32 to the plug hole machine.

[0044] The second conveying mechanism includes two conveying components. The arrangement direction of the two conveying components is the same as that of the first clamping frame 31 and the fourth clamping frame 34, that is, the two conveying components are arranged in the front-back direction. The conveying components are located above the first conveying mechanism. The conveying components include a plurality of second conveying rollers 51. The arrangement direction of the plurality of second conveying rollers 51 is the same as that of the plurality of first conveying rollers 4, that is, the plurality of second conveying rollers 51 are arranged in the left-right direction. The second conveying rollers 51 can move along the arrangement direction of the plurality of second conveying rollers 51. The housing 1 is also provided with a second driving unit (not shown in the figure) for driving the second conveying rollers 51 in the two conveying components to rotate, so that the two conveying components can respectively convey the circuit boards 9 clamped by the third clamping frame 33 and the fourth clamping frame 34 to the plug hole machine.

[0045] The conveying component further includes a conveying frame 52, two guide rods 53 and a plurality of support rods 54. The conveying frame 52 is fixedly connected to the housing 1. The arrangement direction of the two guide rods 53 is the same as that of the two conveying components and is fixedly connected to the conveying frame 52, that is, the two guide rods 53 are arranged in the front-back direction. The axial direction of the guide rods 53 is the same as the arrangement direction of the plurality of second conveying rollers 51, that is, the axial direction of the guide rods 53 extends in the left-right direction. The guide rods 53 are provided with variable pitch thread grooves 531, and the pitch of the variable pitch thread grooves 531 gradually decreases as it moves away from the first clamping frame 31, that is, the pitch of the variable pitch thread grooves 531 gradually increases from left to right. The arrangement direction of the plurality of support rods 54 is the same as that of the plurality of second conveying rollers 51, and the front and rear ends of the support rods 54 are respectively slidably sleeved on the outer peripheral side of the guide rods 53. The support rods 54 are provided with clamping blocks (not shown in the figure), and the clamping blocks are slidably fitted in the variable pitch thread grooves 531. The plurality of second conveying rollers 51 are rotatably installed on the plurality of support rods 54 one by one. When the guide rods 53 are controlled to rotate forward, the clamping blocks will move to the right along the variable pitch thread grooves 531 and drive the support rods 54 and the second conveying rollers 51 to move to the right. Since the pitch of the variable pitch thread grooves 531 gradually increases from left to right, when the second conveying rollers 51 move to the right, the distance between adjacent two second conveying rollers 51 will gradually increase. On the contrary, when the guide rods 53 are controlled to rotate reversely, the second conveying rollers 51 will be driven to move to the left, and the distance between adjacent two second conveying rollers 51 will gradually decrease.

[0046] The circuit board 9 applicable to the present invention is: a via hole is provided at a position near one corner of the circuit board 9, and the via hole can be a blind hole or a through hole.

[0047] When loading the circuit board 9, in the initial state, the four clamping frames are in a state of being away from each other, and the multiple conveying rollers 2 51 in the conveying assembly are in a state of being retracted to the left. After the circuit board 9 is transferred to the support plate 2 by the transfer assembly 12, the four corners of the circuit board 9 will be respectively located at the four notches of the support plate 2. At this time, by controlling the driving member 1 to drive the threaded rod 1 63 and the threaded rod 2 64 to rotate, the two sliders 1 61 can be made close to each other and the two sliders 2 62 can be made close to each other, so that the clamping frame 1 31 and the clamping frame 3 33 can be made close to each other, and the clamping frame 2 32 and the clamping frame 4 34 can be made close to each other, until the four corners of the circuit board 9 are respectively inserted into the slots 7 of the four clamping frames, and each slot 7 is provided with a sensor for detecting the conductive hole.

[0048] The following is a specific description taking the conductive hole of a blind hole structure as an example. When the conductive hole is a blind hole, the opening of the conductive hole on the upper part of the circuit board 9 placed horizontally on the support plate 2 may be located on the upper surface near the right rear corner, on the lower surface near the left rear corner, on the upper surface near the left front corner, and on the lower surface near the right front corner. When the via hole is located on the upper surface near the right rear corner, the via hole corresponds to the telescopic end of telescopic member one 311. When the via hole is located on the lower surface near the left rear corner, the via hole corresponds to the telescopic end of telescopic member two. When the via hole is located on the upper surface near the left front corner, the via hole corresponds to the telescopic end of telescopic member three 331. When the via hole is located on the lower surface near the right front corner, the via hole corresponds to the telescopic end of telescopic member four 341.

[0049] When the sensor detects that the via hole is located on the upper surface near the right rear corner of the circuit board 9, the via hole is located in the slot 7 on the clamping frame 1 31. At this time, the telescopic member 1 311 is controlled to extend, and the telescopic end of the lower part of the telescopic member 1 311 is inserted into the via slot. Then the threaded rod 1 63 and the threaded rod 2 64 are controlled to rotate, so that the clamping frame 1 31 and the clamping frame 3 33 are separated from each other, and the clamping frame 2 32 and the clamping frame 4 34 are separated from each other. When the clamping frame 1 31 moves, it will drive the circuit board 9 synchronously. Move until the clamping frame 31 moves to the bottom of the rear conveying frame 52. At this time, the telescopic driving member 81 is controlled to extend, which will drive the clamping frame 31 to move upward until the bottom surface of the circuit board 9 is consistent with the height of the upper end of the conveying roller 51. At this time, the guide rod 53 is controlled to rotate forward to make the conveying roller 51 gradually move to the right. When the conveying roller 51 moves to the bottom of the circuit board 9, the conveying roller 51 is controlled to rotate and the guide rod 53 is controlled to reverse at the same time, so that the circuit board 9 can be conveyed to the left.

[0050] When the sensor detects that the via hole is located on the lower surface near the left rear corner of the circuit board 9, the via hole is located in the card slot 7 on the second clamping frame 32. At this time, the second telescopic member is controlled to extend, and the telescopic end of the upper part of the second telescopic member will be inserted into the conduction slot. Then, the first clamping frame 31 and the third clamping frame 33 are also moved away from each other, and the second clamping frame 32 and the fourth clamping frame 34 are moved away from each other. When the second clamping frame 32 moves, it will drive the circuit board 9 to move synchronously. At the same time, the second driving member 82 is controlled to operate, so that the second clamping frame 32 rotates 180° with the front-rear direction as the axis. After the second clamping frame 32 rotates 180°, the via hole on the circuit board 9 will be located on the upper surface near the right rear corner of the circuit board 9. And as the second clamping frame 32 moves, the circuit board 9 can be moved to the upper part of the first conveying roller 4. Then, the first conveying roller 4 is controlled to rotate self, and the circuit board 9 can be conveyed to the left.

[0051] When the sensor detects that the via hole is located on the upper surface near the left front corner of the circuit board 9, the via hole is located in the card slot 7 on the third clamping frame 33. At this time, the third telescopic member 331 is controlled to extend, and the telescopic end of the lower part of the third telescopic member 331 will be inserted into the conduction slot. Then, the first clamping frame 31 and the third clamping frame 33 are also moved away from each other, and the second clamping frame 32 and the fourth clamping frame 34 are moved away from each other. When the third clamping frame 33 moves, it will drive the circuit board 9 to move synchronously. At the same time, the third driving member is controlled to operate, so that the third clamping frame 33 rotates 180° with the vertical direction as the axis. After the third clamping frame 33 rotates 180°, the via hole on the circuit board 9 will be located on the upper surface near the right rear corner of the circuit board 9. And as the third clamping frame 33 moves, the circuit board 9 can be moved to the upper part of the first conveying roller 4. Then, the first conveying roller 4 is controlled to rotate self, and the circuit board 9 can be conveyed to the left.

[0052] When the sensor detects that the via hole is located on the lower surface near the right front corner of the circuit board 9, the via hole is located in the card slot 7 on the clamping frame four 34. At this time, control the telescopic member four 341 to extend, and the telescopic end of the upper part of the telescopic member four 341 will insert into the conduction slot. Then, similarly, make the clamping frame one 31 and the clamping frame three 33 move away from each other and make the clamping frame two 32 and the clamping frame four 34 move away from each other. When the clamping frame four 34 moves, it will drive the circuit board 9 to move synchronously until the clamping frame four 34 moves to the lower part of the front conveying frame 52. During the above process, control the driving member four 84 to operate, so that the clamping frame four 34 rotates 180° around the left-right direction as the axis. At this time, the via hole on the circuit board 9 will be located on the upper surface near the right rear corner of the circuit board 9. At the same time, control the telescopic driving member two 83 to extend, which will drive the clamping frame four 34 to move upward until it moves to the height where the bottom surface of the circuit board 9 is the same as the upper end of the conveying roller two 51. At this time, control the guide rod 53 to rotate forward, so that the conveying roller two 51 gradually moves to the right. When the conveying roller two 51 moves to the bottom of the circuit board 9, control the conveying roller two 51 to rotate self and at the same time control the guide rod 53 to rotate reverse, that is, the circuit board 9 can be conveyed to the left.

[0053] As can be seen from the above, the present invention can swap the positions of the circuit board 9 transferred to the support plate 2, so that the via holes are all located on the upper surface position near the right rear corner of the circuit board 9. Finally, the circuit board 9 is conveyed to the plug hole machine through the conveying mechanism one and the conveying mechanism two respectively, so that the device can distinguish the front and back sides of the circuit board 9, and at the same time, the circuit board 9 can be adjusted to the set placement position.

[0054] It can be understood that when the via hole is a through hole, the above technical solution can also be used to realize the adjustment and conveying of the circuit board 9.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic feeding device for a plugging machine, comprising a housing, characterized in that: The invention also includes a support plate, a clamping mechanism, a conveying mechanism 1 and a conveying mechanism 2. The support plate is a square structure and is provided with notches at its four corners. The support plate is fixedly installed in the shell for placing the circuit board. The clamping mechanism includes four clamping frames and a telescopic member installed on each clamping frame. The four clamping frames are provided with card slots and can be respectively clamped at the four corners of the circuit board. Each card slot is provided with a sensor for detecting the through hole. The four clamping frames are respectively clamping frame 1, clamping frame 2, clamping frame 3 and clamping frame 4 which are arranged in sequence. Clamping frame 1 and clamping frame 3 can be close to or away from each other. Clamping frame 2 and clamping frame 4 can be moved closer to or away from each other. The four holding frames can be moved closer to or farther from each other, the first clamping frame and the fourth clamping frame can both be lifted and lowered, the fourth clamping frame can be axially rotated with the arrangement direction of the third clamping frame and the fourth clamping frame as the axial direction, the second clamping frame can be axially rotated with the arrangement direction of the second clamping frame and the third clamping frame as the axial direction, the third clamping frame can be axially rotated in the vertical direction, the telescopic member can be telescopic in the up and down directions, and the telescopic end of the telescopic member can be inserted into the conductive hole on the circuit board, the conveying mechanism one can convey the circuit board clamped by the second clamping frame and the third clamping frame to the plugging machine, and the conveying mechanism two can convey the circuit board clamped by the first clamping frame and the fourth clamping frame to the plugging machine; A driving assembly is provided at the bottom of the shell, and the driving assembly includes two sliders 1, a threaded rod 1, two sliders 2 and a threaded rod 2. The two sliders 1 are respectively connected to the clamping frame 1 and the clamping frame 3, the threaded rod 1 is rotatably connected to the shell, the length direction of the threaded rod 1 is in the same direction as the arrangement direction of the clamping frame 1 and the clamping frame 3, the two sliders 1 are both threadedly connected to the threaded rod 1, and when the threaded rod 1 rotates, the two sliders 1 can be moved closer to or away from each other, and the clamping frame 1 and the clamping frame 3 can be moved closer to or away from each other, the two sliders 2 are respectively connected to the clamping frame 2 and the clamping frame 4, the threaded rod 2 is rotatably connected to the shell, the length direction of the threaded rod 2 is in the same direction as the arrangement direction of the clamping frame 2 and the clamping frame 4, the two sliders 2 are both threadedly connected to the threaded rod 2, and when the threaded rod 2 rotates, the two sliders 2 can be moved closer to or away from each other, and the clamping frame 2 and the clamping frame 4 can be moved closer to or away from each other.

2. The automatic feeding device for the plugging machine according to claim 1, characterized in that: Gear 1 is fixedly mounted on threaded rod 1, gear 2 is fixedly mounted on threaded rod 2, gear 2 is meshed with gear 1, and driving member 1 is fixedly mounted on the housing, driving member 1 can drive threaded rod 1 or threaded rod 2 to rotate.

3. The automatic feeding device for the plugging machine according to claim 1, characterized in that: A telescopic driving member is provided between the clamping frame and the connected slider. The upper and lower ends of the telescopic driving member are respectively fixedly connected to the clamping frame and the slider. The telescopic member installed on the clamping frame is located at the upper part of the card slot, and its telescopic end faces downward.

4. The automatic feeding device for the plugging machine according to claim 1, characterized in that: A driving member 2 is installed on a slider 2 connected to the clamping frame 2, and the driving member 2 can drive the clamping frame 2 to rotate. The telescopic member installed on the clamping frame 2 is located at the lower part of the slot, and its telescopic end faces upward.

5. The automatic feeding device for the plugging machine according to claim 1, characterized in that: A driving member 3 is installed on a slider 1 connected to a clamping frame 3, and the driving member 3 can drive the clamping frame 3 to rotate. The telescopic member installed on the clamping frame 3 is located at the upper part of the card slot, and its telescopic end faces downward.

6. The automatic feeding device for the plugging machine according to claim 1, characterized in that: A telescopic driving member 2 is provided between the clamping frame 4 and the connected slider 2, the lower end of the telescopic driving member 2 is fixedly connected to the slider 2, and the upper end is rotatably connected to the clamping frame 4, and a driving member 4 for driving the clamping frame 4 to rotate is provided at the upper end of the telescopic driving member 2, the telescopic member installed on the clamping frame 4 is located at the lower part of the card slot, and its telescopic end faces upward.

7. The automatic feeding device for the plugging machine according to claim 1, characterized in that: The conveying mechanism 1 includes a plurality of conveying rollers 1 installed on the shell, the arrangement direction of the plurality of conveying rollers 1 is the same as the arrangement direction of the clamping frame 1 and the clamping frame 2, and the upper end height of the conveying roller 1 is consistent with the bottom surface height of the card slot on the clamping frame 2.

8. The automatic feeding device for the plugging machine according to claim 7, characterized in that: The conveying mechanism 2 includes two conveying components, and the arrangement direction of the two conveying components is the same as the arrangement direction of the clamping frame 1 and the clamping frame 4. The conveying component is located above the conveying mechanism 1. The conveying component includes multiple conveying rollers 2, and the arrangement direction of the multiple conveying rollers 2 is the same as the arrangement direction of the multiple conveying rollers 1. The conveying rollers 2 can move along the arrangement direction of the multiple conveying rollers 2.

9. The automatic feeding device for the plugging machine according to claim 8, characterized in that: The conveying assembly also includes a conveying frame, two guide rods and multiple support rods. The conveying frame is fixedly connected to the shell. The arrangement direction of the two guide rods is the same as the arrangement direction of the two conveying assemblies, and both are fixedly connected to the conveying frame. The axial direction of the guide rod is the same as the arrangement direction of the multiple conveying rollers 2. The guide rod is provided with a variable pitch thread groove, and the pitch of the variable pitch thread groove gradually decreases as it moves away from the clamping frame 1. The arrangement direction of the multiple support rods is the same as the arrangement direction of the multiple conveying rollers 2, and the two ends of the support rod are respectively slidably mounted on the outer peripheral side of the guide rod. The support rod is provided with a clamping block, which is slidably fitted in the variable pitch thread groove. The multiple conveying rollers 2 are rotatably installed on the multiple support rods in a one-to-one correspondence.

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