Automatic feeding device of hole plugging machine

Abstract

The invention relates to the technical field of conveying, in particular to an automatic feeding device of a hole plugging machine, a clamping mechanism comprises four clamping frames and telescopic pieces installed on the clamping frames, and the four clamping frames are provided with clamping grooves and can be clamped to the four corners of a circuit board correspondingly; the four clamping frames are the first clamping frame, the second clamping frame, the third clamping frame and the fourth clamping frame which are sequentially arranged, the first clamping frame and the third clamping frame can be close to or far away from each other, the second clamping frame and the fourth clamping frame can be close to or far away from each other, and the fourth clamping frame can rotate with the arrangement direction of the third clamping frame and the fourth clamping frame as the axial direction. The second clamping frame can rotate with the arrangement direction of the second clamping frame and the third clamping frame as the axial direction, the third clamping frame can rotate with the vertical direction as the axial direction, and the telescopic part can stretch out and draw back in the vertical direction. According to the invention, the position of the circuit board transferred to the supporting plate can be exchanged, and the circuit board can be adjusted to a set placing position.

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 5It is a schematic structural diagram of the conveying assembly of the present invention.

[0023] Reference numerals: 1. Shell; 11. Vertical plate; 12. Transfer assembly; 13. Chute 1; 14. Chute 2; 2. Support plate; 31. Clamping frame 1; 311. Telescopic member 1; 32. Clamping frame 2; 33. Clamping frame 3; 331. Telescopic member 3; 34. Clamping frame 4; 341. Telescopic member 4; 35. Sleeve; 36. Rotating shaft; 37. Fixed block; 4. Conveying roller 1; 51. Conveyor roller 2; 52. Conveyor frame; 53. Guide rod; 531. Variable pitch thread groove; 54. Support rod; 61. Slider 1; 62. Slider 2; 63. Threaded rod 1; 64. Threaded rod 2; 65. Gear 1; 66. Gear 2; 7. Slot; 81. Telescopic driving member 1; 82. Driving member 2; 83. Telescopic driving member 2; 84. Driving member 4; 9. Circuit board. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] like Figures 1 to 5 As shown, the automatic feeding device of the plugging machine of the embodiment of the present invention includes a shell 1, a support plate 2, a clamping mechanism, a conveying mechanism 1 and a conveying mechanism 2. For ease of understanding, the length direction of the shell 1 is defined as the left-right direction, and the width direction of the shell 1 is defined as the front-back direction.

[0026] like Figure 2 and Figure 3 As shown, the support plate 2 is fixedly installed in the shell 1 for placing the circuit board 9. Specifically, a vertical plate 11 is fixedly installed at the bottom of the shell 1. The length direction of the vertical plate 11 extends in the left-right direction. The support plate 2 is horizontally fixedly installed on the upper part of the vertical plate 11. The support plate 2 is a square structure and has notches at its four corners. A transfer component 12 is also provided in the shell 1. The transfer component 12 can transfer the stacked circuit boards 9 to the upper part of the support plate 2 in sequence, and when the circuit board 9 is placed on the circuit board 9, the four corners of the circuit board 9 are respectively located at the notches at the four corners of the support plate 2.

[0027] like Figure 2 and Figure 3As shown, the clamping mechanism includes four clamping frames and a telescopic member installed on each clamping frame. The four clamping frames are provided with a card slot 7 and can be respectively clamped at the four corners of the circuit board 9. The four clamping frames are respectively arranged in sequence: clamping frame 1 31, clamping frame 2 32, clamping frame 3 33 and clamping frame 4 34. Specifically, the four clamping frames are respectively arranged at the four notches of the support plate 2, clamping frame 1 31 is located on the right side of clamping frame 2 32, and clamping frame 1 31 is located on the rear side of clamping frame 4 34, that is, clamping frame 1 31 and clamping frame 2 32 are arranged in the left-right direction, clamping frame 1 31 and clamping frame 4 34 are arranged in the front-back direction, clamping frame 1 31 and clamping frame 3 33 are diagonally arranged, and clamping frame 2 32 and clamping frame 4 34 are diagonally arranged.

[0028] like Figure 2 and Figure 3 As shown, the driving assembly includes two sliders 1 61 , two sliders 2 62 , a threaded rod 1 63 and a threaded rod 2 64 .

[0029] The two sliders 61 are respectively arranged below the clamping frame 131 and the clamping frame 33 and are respectively connected to the clamping frame 131 and the clamping frame 33. A slide groove 13 is provided at the bottom of the shell 1. The length direction of the slide groove 13 is in the same direction as the arrangement direction of the clamping frame 131 and the clamping frame 33. The two sliders 61 are both slidably installed in the slide groove 13. The threaded rod 63 is rotatably connected to the shell 1 and is arranged in the slide groove 13. The length direction of the threaded rod 63 is in the same direction as the arrangement direction of the clamping frame 131 and the clamping frame 33. The threaded rod 63 is provided with two sections of threads with opposite spiral directions. The two sliders 61 are respectively threadedly connected to the two sections of threads on the threaded rod 63, so that when the threaded rod 63 rotates, the two sliders 61 can be moved closer to or away from each other.

[0030] A telescopic driving member 81 is provided between the clamping frame 31 and the connected slider 61. The telescopic driving member 81 can be an electric push rod, and its upper and lower ends are respectively fixedly connected to the clamping frame 31 and the slider 61. The telescopic driving member 81 is controlled to be retracted and extended, and the clamping frame 31 can be driven to rise and fall. The telescopic member installed on the clamping frame 31 is located at the upper part of the card slot 7. The telescopic member is defined as a telescopic member 311. The telescopic member 311 can be a cylinder, and its upper cylinder end is fixedly connected to the clamping frame 31, and the lower telescopic end faces downward. When the telescopic member 311 is controlled to extend, its telescopic end can be inserted into the conductive groove at the corresponding position on the circuit board 9.

[0031] A sleeve 35 is fixedly mounted on a slider 61 connected to a clamping frame 33, and a vertically arranged rotating shaft 36 is rotatably mounted on the sleeve 35. A driving member 3 (not shown in the figure) is arranged in the sleeve 35. The driving member 3 can be a motor, and its output end is fixedly connected to the rotating shaft 36. The clamping frame 33 is fixedly mounted on the upper end of the rotating shaft 36. The driving member 3 is controlled to operate, and the rotating shaft 36 and the clamping frame 33 can be driven to rotate axially in the vertical direction. The telescopic member installed on the clamping frame 33 is located at the upper part of the card slot 7. The telescopic member is defined as a telescopic member 331. The telescopic member 331 can be a cylinder, and its upper cylinder end is fixedly connected to the clamping frame 33, and its lower telescopic end faces downward. When the telescopic member 331 is controlled to extend, its telescopic end can be inserted into the conductive groove at the corresponding position on the circuit board 9.

[0032] When the two sliders 1 61 are driven to move closer to or farther from each other by controlling the rotation of the threaded rod 1 63 , the clamping frame 1 31 and the clamping frame 3 33 can be made to move closer to or farther from each other at the same time.

[0033] The two sliders 2 62 are respectively arranged below the clamping frame 2 32 and the clamping frame 4 34 and are respectively connected to the clamping frame 2 32 and the clamping frame 4 34. A slide groove 2 14 is provided at the bottom of the shell 1. The length direction of the slide groove 2 14 is in the same direction as the arrangement direction of the clamping frame 2 32 and the clamping frame 4 34. The two sliders 2 62 are both slidably installed in the slide groove 2 14. The threaded rod 2 64 is rotatably connected to the shell 1 and arranged in the slide groove 2 14. The length direction of the threaded rod 2 64 is in the same direction as the arrangement direction of the clamping frame 2 32 and the clamping frame 4 34. The threaded rod 2 64 is provided with two sections of threads with opposite spiral directions. The two sliders 2 62 are respectively threadedly connected to the two sections of threads on the threaded rod 2 64, so that when the threaded rod 2 64 rotates, the two sliders 2 62 can be moved closer to or away from each other.

[0034] A fixed block 37 is fixedly installed on the slider 62 connected to the clamping frame 32. The clamping frame 32 is rotatably installed on the fixed block 37, and the clamping frame 32 can rotate axially in the forward and backward directions. A driving member 82 is fixedly installed on the fixed block 37. The driving member 82 can be a motor, and its output end is fixedly connected to the clamping frame 32. The driving member 82 is controlled to operate, and the clamping frame 32 can be driven to rotate. The telescopic member installed on the clamping frame 32 is located at the lower part of the slot 7. The telescopic member is defined as telescopic member 2. The telescopic member 2 (not shown in the figure) can be a cylinder, and its lower cylinder end is fixedly connected to the clamping frame 32, and the upper telescopic end faces upward. When the telescopic member 2 is controlled to extend, its telescopic end can be inserted into the conductive groove at the corresponding position on the circuit board 9.

[0035] A telescopic driving member 283 is provided between the clamping frame 434 and the connected slider 262. The telescopic driving member 283 can be an electric push rod, whose lower end is fixedly connected to the slider 262, and whose upper end is rotatably connected to the clamping frame 434, and the clamping frame 434 can rotate axially in the left and right directions. The telescopic driving member 283 is controlled to be telescopic, and the clamping frame 434 can be driven to rise and fall. A driving member 484 is fixedly installed on the upper end of the telescopic driving member 283. The driving member 484 can be a motor, and its output end is fixedly connected to the clamping frame 434. The operation of the driving member 484 is controlled to drive the clamping frame 434 to rotate. The telescopic member installed on the clamping frame 434 is located at the lower part of the slot 7. The telescopic member is defined as a telescopic member 4341. The telescopic member 4341 can be a cylinder, and its lower cylinder end is fixedly connected to the clamping frame 434, and the upper telescopic end faces upward. When the telescopic member 4341 is controlled to extend, its telescopic end can be inserted into the conductive groove at the corresponding position on the circuit board 9.

[0036] When the two sliders 2 62 are driven to move closer to or farther from each other by controlling the rotation of the second threaded rod 64, the second clamping frame 32 and the fourth clamping frame 34 can be moved closer to or farther from each other at the same time.

[0037] In addition, a gear 1 65 is fixedly mounted on the threaded rod 1 63, a gear 2 66 is fixedly mounted on the threaded rod 2 64, the gear 2 66 is meshed with the gear 1 65, and a driving member 1 (not shown in the figure) is fixedly mounted on the housing 1. The driving member 1 can be a motor, and its output end is fixedly connected to the threaded rod 1 63 or the threaded rod 2 64. Therefore, when the driving member 1 is controlled to operate, the meshing of the gear 1 65 and the gear 2 66 can drive the threaded rod 1 63 and the threaded rod 2 64 to rotate simultaneously.

[0038] like Figures 1 to 5 As shown, the conveying mechanism 1 includes a plurality of conveying rollers 4 installed on the shell 1, and the arrangement direction of the plurality of conveying rollers 4 is in the same direction as the arrangement direction of the clamping frame 1 31 and the clamping frame 2 32, that is, the plurality of conveying rollers 4 are arranged in the left-right direction, and the upper end height of the conveying roller 4 is consistent with the bottom surface height of the card slot 7 on the clamping frame 2 32. The shell 1 is also provided with a driving unit 1 (not shown in the figure) for driving the plurality of conveying rollers 4 to rotate, so that the conveying mechanism 1 can convey the circuit board 9 clamped by the clamping frame 1 31 and the clamping frame 2 32 to the plugging machine.

[0039] 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 31 and the clamping frame 4 34, that is, the two conveying components are arranged in the front-to-back direction, and the conveying component is located above the conveying mechanism 1. The conveying component includes multiple conveying rollers 2 51, and the arrangement direction of the multiple conveying rollers 2 51 is the same as the arrangement direction of the multiple conveying rollers 1 4, that is, the multiple conveying rollers 2 51 are arranged in the left-right direction, and the conveying rollers 2 51 can move along the arrangement direction of the multiple conveying rollers 2 51. The shell 1 is also provided with a driving unit 2 (not shown in the figure) for driving the conveying rollers 2 51 in the two conveying components to rotate, so that the two conveying components can respectively convey the circuit board 9 clamped by the clamping frame 3 33 and the clamping frame 4 34 to the plugging machine.

[0040] The conveying assembly also 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 shell 1. The arrangement direction of the two guide rods 53 is the same as the arrangement direction of the two conveying assemblies, and both are fixedly connected to the conveying frame 52, that is, the two guide rods 53 are arranged in the front-to-back direction, and the axial direction of the guide rods 53 is the same as the arrangement direction of the plurality of conveying rollers 2 51, that is, the axial direction of the guide rods 53 extends in the left-to-right direction, and a variable pitch thread groove 531 is provided on the guide rod 53, and the pitch of the variable pitch thread groove 531 gradually decreases as it moves away from the clamping frame 1 31, that is, the pitch of the variable pitch thread groove 531 gradually increases from left to right, and the arrangement direction of the plurality of support rods 54 is the same as the arrangement direction of the plurality of conveying rollers 2 51, and the front of the support rods 54 The rear two ends are respectively slidably sleeved on the outer peripheral side of the guide rod 53, and a clamping block (not shown in the figure) is provided on the support rod 54, which is slidably fitted in the variable pitch thread groove 531. Multiple conveying rollers 51 are rotatably installed on multiple support rods 54 in a one-to-one manner. When the guide rod 53 is controlled to rotate forward, the clamping block will move rightward along the variable pitch thread groove 531, and will drive the support rod 54 and the conveying roller 51 to move rightward. Since the pitch of the variable pitch thread groove 531 gradually increases from left to right, when the conveying roller 51 moves to the right, the distance between the two adjacent conveying rollers 51 will gradually increase. Conversely, when the guide rod 53 is controlled to reverse, it will drive the conveying roller 51 to move leftward, and the distance between the two adjacent conveying rollers 51 will gradually decrease.

[0041] The circuit board 9 applicable to the present invention is: a conducting hole is provided near one corner of the circuit board 9, and the conducting hole can be a blind hole or a through hole.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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 slot 7 on the clamping frame 2 32. At this time, the telescopic member 2 is controlled to extend, and the telescopic end of the upper part of the telescopic member 2 will be inserted into the via slot, and then the clamping frame 1 31 and the clamping frame 3 33 are moved away from each other, and the clamping frame 2 32 and the clamping frame 4 34 are moved away from each other. When the clamping frame 2 32 moves, the circuit board 9 will be driven to move synchronously. At the same time, the driving member 2 82 is controlled to operate so that the clamping frame 2 32 is axially rotated 180° in the forward and backward direction. After the clamping frame 2 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 with the movement of the clamping frame 2 32, the circuit board 9 can be moved to the upper part of the conveying roller 1 4, and then the conveying roller 1 4 is controlled to rotate, so that the circuit board 9 can be conveyed to the left.

[0046] 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 slot 7 on the clamping frame three 33, and the telescopic member three 331 is controlled to extend. The telescopic end of the lower part of the telescopic member three 331 will be inserted into the via slot, and then the clamping frame one 31 and the clamping frame three 33 are moved away from each other, and the clamping frame two 32 and the clamping frame four 34 are moved away from each other. When the clamping frame three 33 moves, the circuit board 9 will be driven to move synchronously. At the same time, the driving member three is controlled to operate so that the clamping frame three 33 rotates 180° with the vertical direction as the axis. After the clamping frame three 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 with the movement of the clamping frame three 33, the circuit board 9 can be moved to the upper part of the conveying roller one 4, and then the conveying roller one 4 is controlled to rotate, so that the circuit board 9 can be conveyed to the left.

[0047] When the sensor detects that the via hole is located at 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 4 34. At this time, the telescopic member 4 341 is controlled to extend, and the telescopic end of the upper part of the telescopic member 4 341 will be inserted into the via slot. Then, the clamping frame 1 31 and the clamping frame 3 33 are moved away from each other, and the clamping frame 2 32 and the clamping frame 4 34 are moved away from each other. When the clamping frame 4 34 moves, it will drive the circuit board 9 to move synchronously until the clamping frame 4 34 moves to the bottom of the front conveying frame 52. In the above process, the driving member 4 84 is controlled to operate. The clamping frame four 34 rotates 180° axially in the left-right direction. At this time, the conductive 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, the telescopic driving member 2 83 is controlled to extend, which will drive the clamping frame four 34 to move upward until it moves to the same height as the bottom surface of the circuit board 9 and the upper end of the conveying roller 2 51. At this time, the guide rod 53 is controlled to rotate forward to make the conveying roller 2 51 gradually move to the right. When the conveying roller 2 51 moves to the bottom of the circuit board 9, the conveying roller 2 51 is controlled to rotate and the guide rod 53 is controlled to reverse at the same time, that is, the circuit board 9 can be conveyed to the left.

[0048] From the above, it can be seen that the present invention can replace the position of the circuit board 9 transferred to the support plate 2 so that the conductive holes are all located on the upper surface near the right rear corner of the circuit board 9, and finally the circuit board 9 is transported to the plugging machine through the conveying mechanism 1 and the conveying mechanism 2 respectively, so that the device can distinguish the front and back sides of the circuit board 9, and at the same time can adjust the circuit board 9 to the set placement position.

[0049] It can be understood that when the conductive hole is a through hole, the above technical solution can also be used to achieve adjustment and transportation of the circuit board 9.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary 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 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. The four clamping frames are 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 close to or away from each other, and clamping frame 1 and clamping frame The four can all be raised and lowered, the clamping frame four can axially rotate with the arrangement direction of the clamping frame three and the clamping frame four as the axial direction, the clamping frame two can axially rotate with the arrangement direction of the clamping frame two and the clamping frame three as the axial direction, the clamping frame three can axially rotate 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.

2. The automatic feeding device for the plugging machine according to claim 1, characterized in that: 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.

3. The automatic feeding device for the plugging machine according to claim 2, 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.

4. The automatic feeding device for the plugging machine according to claim 2, 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.

5. The automatic feeding device for the plugging machine according to claim 2, 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.

6. The automatic feeding device for the plugging machine according to claim 2, 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 slot, and its telescopic end faces downward.

7. The automatic feeding device for the plugging machine according to claim 2, 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.

8. 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.

9. The automatic feeding device for the plugging machine according to claim 8, 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.

10. The automatic feeding device for the plugging machine according to claim 9, 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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