An automatic PCB board insertion device

Abstract

The present invention relates to the technical field of PCB board insertion, and in particular to an automatic PCB board insertion device, comprising a three-axis moving mechanism, a feeding device and a conveying device, wherein the feeding device is used to convey a shaft body, the conveying device is used to convey a PCB board body, and further comprising a pick-and-place box, a clamping mechanism, a discharge mechanism and a shaping unit, wherein the shaping unit comprises a limit plate, a sliding slide, a bearing box, a clamping block, a power device and a power mechanism, wherein the power mechanism comprises a pushing output end and a resetting output end, wherein the pushing output end is used to drive two bearing boxes to move in the sliding slide, and the resetting output end is used to drive the two bearing boxes to reset, and the device can automatically shape a metal sheet on a shaft body when inserting the shaft body, so as to ensure that the metal sheet can be accurately inserted into the mounting hole of the PCB board body.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board insertion, and in particular to an automatic PCB board insertion device. Background Art

[0002] Nowadays, with the rapid development of electronic technology, the application of electronic products is becoming more and more extensive. PCB board (printed circuit board) is the key equipment of electronic products. The electronic components on it need to be inserted into the PCB board first and then welded to be firmly fixed.

[0003] There is a design in the keyboard called the steel plate-free design. The only difference from other keyboards is that there is no positioning plate. When pressing the shaft, it feels like tapping the PCB, which is very unique and elastic. When producing this type of keyboard, the shaft pins must first be inserted into the mounting holes on the PCB board, and then the pins must be soldered and fixed to complete the shaft installation. The current production process usually completes this process automatically by machinery. However, when actually inserting the shaft into the mounting hole, the shaft pins may be tilted and cannot be perpendicular to the mounting hole. If this situation is not handled in time and continues to be inserted, it will cause the shaft here to fail after the subsequent welding is completed, affecting the yield rate. Therefore, a new type of insertion equipment is urgently needed to solve the above problems. Summary of the invention

[0004] Based on this, it is necessary to provide an automated PCB board insertion device to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical scheme adopted by the present invention is: an automatic PCB board insertion device, including a three-axis moving mechanism, a loading device and a conveying device, the loading device is used to convey the shaft body, the conveying device is used to convey the PCB board body, and also includes a pick-and-place box connected to the output shaft of the three-axis moving mechanism, a clamping mechanism arranged in the pick-and-place box, a unloading mechanism arranged above the clamping mechanism and a shaping unit arranged below the pick-and-place box, the clamping mechanism is used to limit and clamp the upper cover of the shaft body, the shaping unit includes a limit plate fixedly arranged below the pick-and-place box, two sliding slides symmetrically opened on the limit plate, a carrier box slidably arranged in each sliding slide, two clamping blocks symmetrically arranged on each carrier box, a power device arranged in the carrier box for driving the two clamping blocks to synchronously approach or move away, and a power mechanism arranged on the limit plate, the power mechanism includes a push output end and a reset output end, the push output end is used to drive the two carrier boxes to move in the sliding slide, and the reset output end is used to drive the two carrier boxes to reset.

[0006] Furthermore, the clamping mechanism also includes a supporting plate symmetrically fixed on both sides of the limiting plate, a positioning plate fixedly connected to the two supporting plates, two clamping springs symmetrically fixed on each supporting plate, and a limiting hook plate fixed under each clamping spring.

[0007] Furthermore, the sliding slide can be divided into a transverse groove, an arc groove and a vertical groove, one end of the arc groove is connected to the transverse groove, and the other end is connected to the vertical groove.

[0008] Furthermore, two limiting slides are symmetrically provided on the limiting plate, each limiting slide is provided on the side of the sliding slide, the limiting slide has the same structure as the sliding slide, and the limiting slide can also be divided into a horizontal groove, an arc groove and a vertical groove, one end of the arc groove is connected to the horizontal groove, and the other end is connected to the vertical groove. The size of the limiting slide is smaller than the sliding slide, and a sliding column and a limiting column are provided at one end of each carrying box, the sliding column is slidably matched with the sliding slide, the limiting column is slidably matched with the limiting slide, and the vertical center planes of the limiting column and the sliding column are coplanar.

[0009] Furthermore, the power mechanism also includes two transmission plates symmetrically slidably arranged on the limit plate, the transmission plate is U-shaped, and the limit plate is provided with a sliding groove matching the transmission plate structure, each transmission plate is provided with an interference bevel groove, and the inclination directions of the interference bevel grooves of the two transmission plates are opposite, the interference bevel grooves correspond to the sliding columns one by one and slide together, and the transmission plate is fixedly connected to the push output end of the power mechanism.

[0010] Furthermore, the pick-and-place box includes a U-shaped bottom box and a mounting side plate fixedly connected to the U-shaped bottom box, and the power mechanism also includes a wedge plate fixedly arranged on the limit plate, a top plate slidably arranged on the wedge plate, a support box symmetrically fixedly arranged on both sides of the top plate, a plurality of toggle teeth arranged at equal intervals along the length direction of the support box, a top block fixedly arranged at the bottom of the top plate, a transfer gear arranged on the side of each support box and rotatably connected to the mounting side plate, a ratchet coaxially fixedly arranged on the transfer gear, and two limit teeth symmetrically formed on the mounting side plates. The gear train comprises a plurality of gears, a plurality of gears, and a plurality of gears. The plurality of gears are connected to each other by a plurality of springs. The plurality of gears are connected to the plurality of gears. The plurality of gears are connected to the plurality of gears. The plurality of gears are connected to the plurality of gears. The plurality of gears are connected to the plurality of gears. The plurality of gears are connected to the plurality of gears. The plurality of gears are connected to the plurality of gears.

[0011] Furthermore, the bearing strip is the push output end of the power mechanism, and the first spring and the second spring are the reset output ends of the power mechanism.

[0012] Furthermore, the limiting mechanism includes an elastic hook plate fixedly arranged on each transfer rack, two connecting spring plates arranged between each bearing strip and the transfer rack, an abutting boss formed on the side of each transfer rack, a touch vertical plate and a touch inclined plate fixedly arranged on one side of each limiting protrusion, the touch vertical plate is located above the touch inclined plate, and a locking groove is provided on each bearing strip.

[0013] Furthermore, each carrying box is elastically and slidingly provided with a push strip and a transfer strip, the push strip and the transfer strip are connected by gears, the push strip passes through the side wall of the carrying box, and two collision bevels are symmetrically provided on the positioning plate, the collision bevels correspond to the push strips one by one, and the push strip and the transfer strip are both removably connected with a clamping block, and an inclined surface is provided on the opposite side of each two clamping blocks.

[0014] Furthermore, the unloading mechanism includes a push rod fixedly arranged in the U-shaped bottom box and a push frame fixedly connected to the output end of the push rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, when the shaft is inserted into the PCB board of the keyboard, the device can automatically correct the metal sheet of the shaft through the shaping unit to avoid bending of the metal sheet, ensure that the metal sheet can be vertically inserted into the installation hole, and improve the yield rate;

[0017] Second, the device ensures that the load-bearing strip moves downward only when the insertion shaft body is moved downward by the one-way meshing of the toggle teeth and the ratchet teeth, and because of the one-way meshing of the toggle teeth and the ratchet teeth, when the top plate is reset, the toggle teeth do not mesh with the ratchet teeth, ensuring the normal operation of the device;

[0018] Third: This device realizes the shaping of metal sheets and the withdrawal of clamps in a purely mechanical way, saving the manufacturer's R&D costs and increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0020] Figure 2 is a schematic diagram of the three-dimensional structure of a shaping unit of an embodiment;

[0021] Figure 3 1 is a schematic diagram of the three-dimensional structure of the unloading mechanism of the embodiment;

[0022] Figure 4 is a schematic diagram of the three-dimensional structure of the limiting plate of the embodiment;

[0023] Figure 5 The three-dimensional structure of the embodiment when the carrier box slides to the horizontal groove Figure 1 ;

[0024] Figure 6 The three-dimensional structure of the embodiment when the carrier box slides to the horizontal groove Figure 2 ;

[0025] Figure 7 is a schematic plan view of a sliding slide of an embodiment;

[0026] Figure 8 The three-dimensional structure of the carrier box of the embodiment when it is close to the metal sheet Figure 1 ;

[0027] Fig. 9 The three-dimensional structure of the carrier box of the embodiment when it is close to the metal sheet Figure 2 ;

[0028] Fig.10 is a schematic diagram of a three-dimensional structure decomposition of a power mechanism of an embodiment;

[0029] Fig.11 is a schematic diagram of the three-dimensional structure of the installation side plate of the embodiment;

[0030] Fig.12 is a schematic diagram of the three-dimensional structure of the transfer rack of the embodiment;

[0031] Fig.13 is a schematic diagram of the three-dimensional structure of the carrying box, the contact inclined block and the shaft body of the embodiment;

[0032] Fig.14 It is a schematic diagram of the three-dimensional structure of the carrying box of the embodiment.

[0033] The numbers in the figure are: 1, PCB board body; 2, shaft body; 3, metal sheet; 4, pick-and-place box; 5, positioning plate; 6, collision oblique block; 7, limit plate; 8, limit slide; 9, sliding slide; 10, horizontal groove; 11, arc groove; 12, vertical groove; 13, transmission plate; 14, contact oblique groove; 15, wedge plate; 16, top block; 17, top plate; 18, supporting box; 19, toggle tooth; 20, carrying box; 21, limit column; 22, sliding column; 23, top moving strip plate; 24, clamping block; 25. Inclined surface; 26. Transfer strip; 27. Load-bearing plate; 28. Clamping spring piece; 29. ​​Limiting hook plate; 30. Push rod; 31. Push frame; 32. U-shaped bottom box; 33. Installing side plate; 34. Limiting convex strip; 35. Load-bearing strip; 36. Transfer rack; 37. Elastic hook plate; 38. Abutting convex column; 39. Connecting spring piece; 40. Ratchet; 41. Transfer gear; 42. Touching vertical plate; 43. Touching inclined plate; 44. First spring; 45. Second spring; 46. Locking groove. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] refer to Figures 1 to 14 :

[0036] An automatic PCB board insertion device includes a three-axis moving mechanism, a loading device and a conveying device, wherein the loading device is used to convey a shaft body 2 (such as Figure 3 As shown), the conveying device is used to convey the PCB board body 1, and also includes a pick-up and place box 4 connected to the output shaft of the three-axis moving mechanism, a clamping mechanism arranged in the pick-up and place box 4, a discharge mechanism arranged above the clamping mechanism and a shaping unit arranged below the pick-up and place box 4, the clamping mechanism is used to limit and clamp the upper cover of the shaft body 2, and the shaping unit includes a limit plate 7 fixedly arranged below the pick-up and place box 4, two sliding slideways 9 symmetrically opened on the limit plate 7, a carrying box 20 slidably arranged in each sliding slideway 9, and two clamping blocks 24 symmetrically arranged on each carrying box 20 (as shown in FIG. Figure 4 As shown), a power device arranged in the carrier box 20 for driving the two clamping blocks 24 to move synchronously closer or farther away, and a power mechanism arranged on the limit plate 7, the power mechanism includes a push output end and a reset output end, the push output end is used to drive the two carrier boxes 20 to move in the sliding slide 9, and the reset output end is used to drive the two carrier boxes 20 to reset.

[0037] When the device is in operation, the PCB board body 1 is transported by the conveying device (the conveying device can be any device with a conveying function such as a conveyor belt, a roller conveyor belt, etc., which is a mature existing technology and will not be described in detail here), and then the three-axis moving mechanism (the three-axis moving mechanism is a mature existing technology and will not be described in detail here) drives the pick-and-place box 4 to take out a shaft body 2 from the loading device (the loading device can be a vibrating feeder or any device with a loading function, which is a mature existing technology and will not be described in detail here), and then the three-axis moving mechanism drives the pick-and-place box 4 to take out a shaft body 2 from the loading device (the loading device can be a vibrating feeder or any device with a loading function, which is a mature existing technology and will not be described in detail here). The pick-and-place box 4 is moved to a position above a PCB board body 1 transported by a conveying device (when the PCB board body 1 is being inserted into the shaft body 2, the conveying device does not move with the PCB board body 1), and then the three-axis moving mechanism drives the pick-and-place box 4 to move downward, so that the pick-and-place box 4 approaches the mounting hole on the PCB board body 1 (it should be noted that the insertion order of the shaft body 2 is from the upper left to the lower right of the PCB board body 1 one by one), and as the pick-and-place box 4 moves downward, the driving output end of the power mechanism drives the two carrying boxes 20 to approach the metal sheet 3 under the shaft body 2 (reference Figure 8Due to its own characteristics, the metal sheet 3 will only tilt to the left or right during the loading and transportation process), and then the power device drives the two clamping blocks 24 on the corresponding carrying box 20 to shape the metal sheet 3 to ensure that the metal sheet 3 is in a vertical downward state as a whole to avoid bending of the metal sheet 3. Then the pick-up and placement box 4 continues to move downward. At this time, a small section of the bottom end of the metal sheet 3 has been inserted into the corresponding mounting hole, and then the reset output end of the power mechanism drives the two carrying boxes 20 to reset. After that, the unloading mechanism in the pick-up and placement box 4 pushes the shaft body 2 downward from the pick-up and placement box 4, causing the metal sheet 3 to smoothly enter the mounting hole until the bottom of the shaft body 2 is tightly attached to the PCB board body 1, thereby completing the installation of a shaft body 2. After that, the equipment repeats the above steps to complete the insertion of the shaft body 2 of the PCB board.

[0038] In order to show the detailed structure of the clamping mechanism, the following features are also set:

[0039] The clamping mechanism also includes a supporting plate 27 (such as Figure 6 As shown in FIG. 1 ), a positioning plate 5 fixedly connected to two bearing plates 27, and two clamping springs 28 (as shown in FIG. 1 ) fixedly arranged on each bearing plate 27 in a symmetrical state. Figure 5 As shown) and a limiting hook plate 29 fixedly arranged below each clamping spring sheet 28.

[0040] When picking up materials, two sets of clamping springs 28 are used to clamp the grooves on the upper cover of the shaft body 2 to ensure that the shaft body 2 can be fixed in the pick-and-place box 4, and by setting a limiting hook plate 29, it is ensured that the shaft body 2 can be in the same position of the pick-and-place box 4 every time when picking up materials, ensuring that the clamping springs 28 can accurately clamp the shaft body 2.

[0041] In order to show the detailed structure of the sliding slide 9, the following features are also specifically provided:

[0042] The slideway 9 can be divided into a transverse groove 10, an arc groove 11 and a vertical groove 12 (such as Figure 7 As shown), one end of the arc groove 11 is connected to the horizontal groove 10, and the other end is connected to the vertical groove 12.

[0043] In order to ensure that the carrying box 20 can smoothly move along the sliding track 9 under the driving of the push output end, the following features are also specifically provided:

[0044] Two limiting slideways 8 are symmetrically provided on the limiting plate 7, each limiting slideway 8 is provided on the side of the sliding slideway 9, and the limiting slideway 8 has the same structure as the sliding slideway 9. The limiting slideway 8 can also be divided into a transverse groove 10, an arc groove 11 and a vertical groove 12. One end of the arc groove 11 is connected to the transverse groove 10, and the other end is connected to the vertical groove 12. The size of the limiting slideway 8 is smaller than the sliding slideway 9, and one end of each carrying box 20 is provided with a sliding column 22 and a limiting column 21 (such as Fig.14 As shown), the sliding column 22 is slidably matched with the sliding slide 9, the limiting column 21 is slidably matched with the limiting slide 8, and the vertical center planes of the limiting column 21 and the sliding column 22 are coplanar.

[0045] It should be noted that, in the initial state, the limiting column 21 and the sliding column 22 are both in the vertical slot 12, so that the carrying box 20 is in a vertical state (such as Figure 1 , and at this time the clamping block 24 is vertically downward), when the pushing output end of the power mechanism drives the carrying box 20 to slide on the limiting plate 7, the limiting column 21 slides in the limiting slide 8, and the sliding column 22 slides in the sliding slide 9. The specific sliding trajectory is to slide downward from the vertical groove 12, pass through the arc groove 11 and then slide into the horizontal groove 10. After sliding into the horizontal groove 10, the carrying box 20 then approaches the metal sheet 3 (at this time the clamping block 24 is horizontally facing the metal sheet 3), which is convenient for the subsequent shaping of the metal sheet 3 by the clamping block 24.

[0046] In order to show the detailed structure of the power mechanism, the following features are also set:

[0047] The power mechanism also includes two transmission plates 13 symmetrically slidably arranged on the limit plate 7. The transmission plate 13 is U-shaped. The limit plate 7 is provided with a sliding groove matching the structure of the transmission plate 13. Each transmission plate 13 is provided with an interference bevel groove 14. The interference bevel grooves 14 of the two transmission plates 13 are inclined in opposite directions. The interference bevel grooves 14 correspond to the sliding columns 22 one by one and slide in cooperation. The transmission plate 13 is fixedly connected to the push output end of the power mechanism.

[0048] (Combined Figure 3 and Figure 5 ) It should be noted that in the initial state, the transmission plate 13 is at the upper end of the limit plate 7. When the device is running, the push output end of the power mechanism drives the transmission plate 13 to move downward. At this time, the sliding column 22 slides in the limit slide 8 through the abutment inclined groove 14, and the sliding column 22 also slides in the abutment inclined groove 14.

[0049] In order to show the detailed structure of the power mechanism, the following features are also set:

[0050] The pick-and-place box 4 includes a U-shaped bottom box 32 and a mounting side plate 33 fixedly connected to the U-shaped bottom box 32. The power mechanism also includes a wedge-shaped plate 15 (such as Figure 5As shown in the figure, a top plate 17 slidably arranged on the wedge plate 15, a support box 18 symmetrically fixedly arranged on both sides of the top plate 17, a plurality of toggle teeth 19 arranged at equal intervals along the length direction of the support box 18, a top block 16 fixedly arranged at the bottom of the top plate 17, a transfer gear 41 arranged beside each support box 18 and rotatably connected to the mounting side plate 33, a ratchet 40 coaxially fixedly arranged on the transfer gear 41, two limiting convex strips 34 symmetrically formed on the mounting side plate 33, a bearing strip plate 35 slidably arranged on each limiting convex strip 34, and a spring A transfer rack 36 is slidably arranged on each bearing strip 35, and the transfer rack 36 is meshed with a transfer gear 41. Each toggle tooth 19 is elastically rotatably arranged in the support box 18, and a plurality of toggle teeth 19 are unidirectionally meshed with the ratchet teeth 40. The shaping unit also includes a limiting mechanism, which is used to make the transfer rack 36 move away from or close to the bearing strip 35. The bearing strip 35 corresponds to the transmission plate 13 one by one and is fixedly connected. The top of the top plate 17 is connected to the mounting side plate 33 through a first spring 44, and the bearing strip 35 is connected to the mounting side plate 33 through a second spring 45.

[0051] The bearing strip 35 is the pushing output end of the power mechanism, and the first spring 44 and the second spring 45 are the resetting output ends of the power mechanism.

[0052] Combination Figure 2 , Fig.10 When the equipment is running, as the pick-and-place box 4 moves downward, the top plate 17 first contacts the PCB board body 1 through the top block 16, and as the pick-and-place box 4 continues to move downward, the top plate 17 slides upward along the wedge plate 15, and the top plate 17 slides upward to drive the supporting box 18 to move at the same time, and the movement of the supporting box 18 causes the toggle tooth 19 to mesh with the ratchet 40, thereby causing the ratchet 40 to rotate, and the rotation of the ratchet 40 drives the transfer gear 41 to rotate, and the transfer gear 41 rotates to mesh with the transfer rack 36, thereby causing the transfer rack 36 to move downward, and the downward movement of the transfer rack 36 drives the bearing strip 35 to move downward, and the downward movement of the bearing strip 35 drives the transmission plate 13 to move downward, in the above During the process, the first spring 44 is compressed and the second spring 45 is stretched. When the transmission plate 13 moves down to the extreme position (at this time, the supporting box 20 is close to the metal sheet 3, and the metal sheet 3 has been shaped by the clamping block 24, and the metal sheet 3 has been inserted into the mounting hole), the limiting mechanism operates, causing the transfer rack 36 to approach the supporting strip 35, so that the transfer rack 36 and the transfer gear 41 are no longer engaged. Subsequently, the second spring 45 resets and drives the supporting strip 35, the transfer rack 36, the transmission plate 13 and the supporting box 20 to reset, so that the supporting box 20 and the clamping block 24 are smoothly withdrawn from the bottom of the shaft body 2, which is convenient for the subsequent completion of the shaft body 2 insertion work.

[0053] In order to show the detailed structure of the limit mechanism, the following features are also set:

[0054] The limiting mechanism includes an elastic hook plate 37 (such as Fig.11 As shown in the figure, two connecting spring pieces 39 are arranged between each bearing strip 35 and the transfer rack 36, a contact boss 38 is formed on the side of each transfer rack 36, and a touch vertical plate 42 and a touch inclined plate 43 are fixedly arranged on one side of each limiting protrusion 34, the touch vertical plate 42 is located above the touch inclined plate 43, and a locking groove 46 is opened on each bearing strip 35.

[0055] When the transmission plate 13 moves downward to the limit position, the abutting boss 38 contacts the contacting inclined plate 43 (combined with Fig.11 and Fig.12 ), then the transfer rack 36 overcomes the elastic force of the connecting spring sheet 39 and approaches the bearing strip 35, causing the elastic hook plate 37 to slide out of the locking groove 46 until the elastic hook plate 37 hooks the bearing strip 35, thereby temporarily locking the transfer rack 36 on the bearing strip 35. When the second spring 45 is reset, the bearing strip 35 moves up, and when it returns to its initial position, the touch vertical plate 42 touches the elastic hook plate 37, causing the elastic hook plate 37 to separate from the bearing strip 35, thereby resetting the transfer rack 36, and the transfer rack 36 is re-engaged with the transfer gear 41.

[0056] After the device completes the insertion of a shaft body 2, the three-axis moving mechanism drives the pick-and-place box 4 away from the PCB board body 1. At this time, the first spring 44 releases the pressure to drive the top plate 17 to reset. Since the toggle tooth 19 is elastically rotatably connected to the supporting box 18, the toggle tooth 19 does not engage with the ratchet 40 when the top plate 17 is reset.

[0057] In order to show the detailed structure of the power unit, the following features are also set:

[0058] Each carrying box 20 is elastically slidably provided with a push strip 23 and a transfer strip 26 (such as Fig.14 As shown), the push strip 23 and the transfer strip 26 are connected by gears, the push strip 23 passes through the side wall of the carrier box 20, and two collision bevels 6 are symmetrically arranged on the positioning plate 5. The collision bevels 6 correspond to the push strips 23 one by one. The push strip 23 and the transfer strip 26 are both detachably connected with a clamping block 24, and an inclined surface 25 is provided on the opposite side of each two clamping blocks 24.

[0059] After the carrier box 20 slides from the arc groove 11 into the transverse groove 10, the carrier box 20 will slide a certain distance in the transverse groove 10 driven by the transmission plate 13. During the sliding process, the push strip 23 collides with the collision bevel block 6, causing the push strip 23 to slide back into the carrier box 20, and then the transfer strip 26 is driven by the gear transmission to slide in the opposite direction of the movement of the push strip 23 (refer to the principle of the gear rack reversing structure here), so that the two clamping blocks 24 approach each other to clamp the metal sheet 3, and then force the tilted metal sheet 3 to be shaped so that the metal sheet 3 can be vertically located directly above the mounting hole. It should be noted that since the two metal sheets 3 under the shaft body 2 are not in the same position, the position of the clamping block 24 on the push strip 23 and the transfer strip 26 can be flexibly adjusted according to actual conditions to ensure that the two clamping blocks 24 can clamp the metal sheet 3 after approaching each other.

[0060] In order to show the detailed structure of the unloading mechanism, the following features are also set:

[0061] The unloading mechanism includes a push rod 30 fixedly arranged in a U-shaped bottom box 32 and a push frame 31 fixedly connected to the output end of the push rod 30 .

[0062] When the last step of insertion is performed, the push rod 30 runs through the push frame 31 to push the shaft body 2 downward, causing the shaft body 2 to fall off from the clamping spring 28 until the bottom of the shaft body 2 is tightly attached to the PCB board body 1.

[0063] The working principle of this device is as follows: when the shaft body 2 is inserted, the top plate 17 first contacts the PCB board body 1 through the top block 16, and as the pick-and-place box 4 continues to move downward, the top plate 17 slides upward along the wedge plate 15, and the top plate 17 slides upward to drive the support box 18 to move at the same time, and the movement of the support box 18 causes the toggle tooth 19 to engage with the ratchet 40, thereby causing the ratchet 40 to rotate, and the rotation of the ratchet 40 drives the transfer gear 41 to rotate, and the transfer gear 41 rotates to engage the transfer rack 36, thereby causing the transfer rack 36 to move downward, and the downward movement of the transfer rack 36 drives the bearing strip 35 to move downward, and the downward movement of the bearing strip 35 drives the transmission plate 13 to move downward. In the above process, the first spring 44 is compressed and the second spring 45 is stretched. When the transmission plate 13 moves down to the extreme position, the abutting boss 38 collides with the contact inclined plate 43 (combined with the Fig.11 and Fig.12), then the transfer rack 36 overcomes the elastic force of the connecting spring sheet 39 and approaches the bearing strip 35, causing the elastic hook plate 37 to slide out of the locking groove 46 until the elastic hook plate 37 hooks the bearing strip 35, thereby temporarily locking the transfer rack 36 on the bearing strip 35, and then the second spring 45 resets to drive the bearing strip 35, the transfer rack 36, the transmission plate 13 and the bearing box 20 to reset, causing the bearing box 20 and the clamping block 24 to be smoothly withdrawn from the bottom of the shaft body 2, so as to facilitate the subsequent completion of the shaft body 2 insertion work. At the same time, the transmission plate 13 moves downward and carries the carrying box 20 to slide in the limiting slide 8, the limiting column 21 slides in the limiting slide 8, and the sliding column 22 slides in the sliding slide 9. The specific sliding trajectory slides downward from the vertical groove 12, passes through the arc groove 11 and then slides into the horizontal groove 10. After sliding into the horizontal groove 10, the carrying box 20 approaches the metal sheet 3. In the process of approaching the metal sheet 3, the top moving strip 23 touches the collision inclined block 6, causing the top moving strip 23 to slide back into the carrying box 20, and then drives the transfer strip 26 to slide in the opposite direction of the movement direction of the top moving strip 23 through the gear transmission (refer to the principle of the gear rack reversing structure here), so that the two clamping blocks 24 face each other. The metal sheet 3 is clamped close to the device, and the tilted metal sheet 3 is forced to be reshaped so that the metal sheet 3 can be vertically located directly above the mounting hole. Then, the push rod 30 pushes the shaft body 2 out through the push frame 31 until the bottom of the shaft body 2 is in close contact with the PCB board body 1. After the device completes the insertion of one shaft body 2, the three-axis moving mechanism drives the pick-and-place box 4 away from the PCB board body 1. At this time, the first spring 44 releases the pressure to drive the top plate 17 to reset. Since the toggle tooth 19 is elastically rotatably connected to the supporting box 18, the toggle tooth 19 does not engage with the ratchet tooth 40 when the top plate 17 is reset. Then, the device continues to repeat the above steps to complete the insertion of the PCB board body 1.

[0064] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An automated PCB board insertion device, comprising a three-axis moving mechanism, a loading device and a conveying device, wherein the loading device is used to convey the shaft body (2), and the conveying device is used to convey the PCB board body (1), characterized in that: The invention also comprises a pick-and-place box (4) connected to the output shaft of the three-axis moving mechanism, a clamping mechanism arranged in the pick-and-place box (4), a discharge mechanism arranged above the clamping mechanism, and a shaping unit arranged below the pick-and-place box (4). The clamping mechanism is used to limit and clamp the upper cover of the shaft body (2). The shaping unit comprises a limit plate (7) fixedly arranged below the pick-and-place box (4), two sliding slideways (9) symmetrically arranged on the limit plate (7), a carrier box (20) slidably arranged in each sliding slideway (9), two clamping blocks (24) symmetrically arranged on each carrier box (20), a power device arranged in the carrier box (20) for driving the two clamping blocks (24) to synchronously approach or move away, and a power mechanism arranged on the limit plate (7). The power mechanism comprises a push output end and a reset output end. The push output end is used to drive the two carrier boxes (20) to move in the sliding slideway (9), and the reset output end is used to drive the two carrier boxes (20) to reset.

2. The automatic PCB board insertion device according to claim 1, characterized in that: The clamping mechanism also includes a bearing plate (27) symmetrically fixedly arranged on both sides of the limiting plate (7), a positioning plate (5) fixedly connected to the two bearing plates (27), two clamping springs (28) symmetrically fixedly arranged on each bearing plate (27), and a limiting hook plate (29) fixedly arranged below each clamping spring (28).

3. The automatic PCB board insertion device according to claim 2, characterized in that: The sliding slideway (9) can be divided into a transverse groove (10), an arc groove (11) and a vertical groove (12), one end of the arc groove (11) is connected to the transverse groove (10), and the other end is connected to the vertical groove (12).

4. The automatic PCB board insertion device according to claim 3 is characterized in that: Two limiting slideways (8) are symmetrically arranged on the limiting plate (7), each limiting slideway (8) is arranged beside the sliding slideway (9), the limiting slideway (8) has the same structure as the sliding slideway (9), and the limiting slideway (8) can also be divided into a transverse groove (10), an arc groove (11) and a vertical groove (12), one end of the arc groove (11) is connected to the transverse groove (10), and the other end is connected to the vertical groove (12), the size of the limiting slideway (8) is smaller than the sliding slideway (9), and one end of each carrying box (20) is provided with a sliding column (22) and a limiting column (21), the sliding column (22) is slidably matched with the sliding slideway (9), the limiting column (21) is slidably matched with the limiting slideway (8), and the vertical center planes of the limiting column (21) and the sliding column (22) are coplanar.

5. The automatic PCB board insertion device according to claim 1, characterized in that: The power mechanism further comprises two transmission plates (13) slidably arranged on the limit plate (7) in a symmetrical state, the transmission plate (13) being U-shaped, the limit plate (7) being provided with a sliding groove matching the structure of the transmission plate (13), each transmission plate (13) being provided with a resisting inclined groove (14), the resisting inclined grooves (14) of the two transmission plates (13) being inclined in opposite directions, the resisting inclined grooves (14) corresponding to the sliding columns (22) one by one and being slidably matched, and the transmission plate (13) being fixedly connected to the driving output end of the power mechanism.

6. The automatic PCB board insertion device according to claim 5, characterized in that: The pick-and-place box (4) comprises a U-shaped bottom box (32) and a mounting side plate (33) fixedly connected to the U-shaped bottom box (32), and the power mechanism also comprises a wedge-shaped plate (15) fixedly arranged on the limiting plate (7), a top plate (17) slidably arranged on the wedge-shaped plate (15), a supporting box (18) fixedly arranged on both sides of the top plate (17) in a symmetrical state, a plurality of shifting teeth (19) arranged at equal intervals along the length direction of the supporting box (18), a top block (16) fixedly arranged at the bottom of the top plate (17), a transfer gear (41) arranged on the side of each supporting box (18) and rotatably connected to the mounting side plate (33), a ratchet (40) coaxially fixedly arranged on the transfer gear (41), and two limiting convex strips (33) formed in a symmetrical state on the mounting side plate (33). 4) a load-bearing strip (35) slidably arranged on each limiting convex strip (34) and a transfer rack (36) elastically slidably arranged on each load-bearing strip (35), the transfer rack (36) meshing with the transfer gear (41), each toggle tooth (19) is elastically rotatably arranged in the support box (18), a plurality of toggle teeth (19) are unidirectionally meshed with the ratchet teeth (40), the shaping unit also includes a limiting mechanism, the limiting mechanism is used to make the transfer rack (36) away from or close to the load-bearing strip (35), the load-bearing strip (35) and the transmission plate (13) correspond to each other one by one and are fixedly connected, the top of the top plate (17) is connected to the mounting side plate (33) through a first spring (44), and the load-bearing strip (35) is connected to the mounting side plate (33) through a second spring (45).

7. The automatic PCB board insertion device according to claim 6, characterized in that: The bearing strip (35) is the pushing output end of the power mechanism, and the first spring (44) and the second spring (45) are the resetting output ends of the power mechanism.

8. The automatic PCB board insertion device according to claim 7, characterized in that: The limiting mechanism comprises an elastic hook plate (37) fixedly arranged on each transfer rack (36), two connecting spring sheets (39) arranged between each bearing strip plate (35) and the transfer rack (36), a contact convex column (38) formed on the side of each transfer rack (36), a touch vertical plate (42) and a touch inclined plate (43) fixedly arranged on one side of each limiting convex strip (34), the touch vertical plate (42) is located above the touch inclined plate (43), and a locking groove (46) is opened on each bearing strip plate (35).

9. The automatic PCB board insertion device according to claim 1, characterized in that: A push strip (23) and a transfer strip (26) are elastically slidably arranged in each carrier box (20), the push strip (23) and the transfer strip (26) are connected via gears, the push strip (23) penetrates the side wall of the carrier box (20), two collision inclined blocks (6) are symmetrically arranged on the positioning plate (5), the collision inclined blocks (6) correspond to the push strip (23) one by one, and a clamping block (24) is detachably connected to each push strip (23) and the transfer strip (26), and an inclined surface (25) is provided on the opposite side of each of the two clamping blocks (24).

10. The automatic PCB board insertion device according to claim 1, characterized in that: The unloading mechanism comprises a push rod (30) fixedly arranged in a U-shaped bottom box (32) and a push frame (31) fixedly connected to the output end of the push rod (30).

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